首页 > 最新文献

Current Biotechnology最新文献

英文 中文
Unleashing the Potential of Gut Microbiota: Cholesterol ReductionThrough Microbial Bile Acid Metabolism 释放肠道微生物群的潜能:通过微生物胆汁酸代谢降低胆固醇
Pub Date : 2024-03-08 DOI: 10.2174/0122115501282536240301055402
Md. Fakruddin, Nazia Nazrul Nafsi, Md. Ashiqur Rahman, Jinath Sultana Jime, Nayeema Bulbul, Md. Asaduzzaman Shishir, Md. Shamsul Arefin, Ashrafus Safa
Cholesterol metabolism is a crucial mechanism for preserving cellular functionality,and overall human health. Cardiovascular diseases and other conditions can arise due to dysregulationof cholesterol levels. Bile acids’ enterohepatic circulation greatly influences cholesterol homeostasis.Recent research has emphasized the essential role of the gut microbiota in bile acidmetabolism and its association with cholesterol regulation. Living microbial supplements knownas probiotics have been studied as a potential means of reducing cholesterol by modifying the gutmicrobiome. This review explores existing theories of how probiotic production and modificationof bile acids affect cholesterol metabolism. Discussion ensues regarding the processes by whichprobiotics lower cholesterol, including bile acid deconjugation, conversion of cholesterol to coprostanoland cholestenone, co-precipitation of cholesterol with deconjugated bile, and disruptionof cholesterol micelles by Bile Salt Hydrolase (BSH). According to research, there are significanttherapeutic ramifications in understanding the complex interactions between the gut microbiomeand host cholesterol metabolism. More study is required to comprehend the causal mechanismsfurther and produce new methods for lowering microbiota-mediated cholesterol to enhance humanhealth.
胆固醇代谢是维持细胞功能和人体整体健康的重要机制。心血管疾病和其他疾病都可能是由于胆固醇水平失调引起的。最近的研究强调了肠道微生物群在胆汁酸代谢中的重要作用及其与胆固醇调节的关系。研究发现,被称为益生菌的活微生物补充剂是通过改变肠道微生物群来降低胆固醇的一种潜在手段。本综述探讨了益生菌产生和改变胆汁酸如何影响胆固醇代谢的现有理论。随后讨论了益生菌降低胆固醇的过程,包括胆汁酸解结合、胆固醇转化为共烷醇和胆甾烯酮、胆固醇与解结合胆汁共沉淀以及胆盐水解酶(BSH)对胆固醇胶束的破坏。研究表明,了解肠道微生物组和宿主胆固醇代谢之间复杂的相互作用具有重要的治疗意义。要进一步理解其因果机制,并开发出降低微生物群介导的胆固醇的新方法以增进人类健康,还需要进行更多的研究。
{"title":"Unleashing the Potential of Gut Microbiota: Cholesterol Reduction\u0000Through Microbial Bile Acid Metabolism","authors":"Md. Fakruddin, Nazia Nazrul Nafsi, Md. Ashiqur Rahman, Jinath Sultana Jime, Nayeema Bulbul, Md. Asaduzzaman Shishir, Md. Shamsul Arefin, Ashrafus Safa","doi":"10.2174/0122115501282536240301055402","DOIUrl":"https://doi.org/10.2174/0122115501282536240301055402","url":null,"abstract":"\u0000\u0000Cholesterol metabolism is a crucial mechanism for preserving cellular functionality,\u0000and overall human health. Cardiovascular diseases and other conditions can arise due to dysregulation\u0000of cholesterol levels. Bile acids’ enterohepatic circulation greatly influences cholesterol homeostasis.\u0000Recent research has emphasized the essential role of the gut microbiota in bile acid\u0000metabolism and its association with cholesterol regulation. Living microbial supplements known\u0000as probiotics have been studied as a potential means of reducing cholesterol by modifying the gut\u0000microbiome. This review explores existing theories of how probiotic production and modification\u0000of bile acids affect cholesterol metabolism. Discussion ensues regarding the processes by which\u0000probiotics lower cholesterol, including bile acid deconjugation, conversion of cholesterol to coprostanol\u0000and cholestenone, co-precipitation of cholesterol with deconjugated bile, and disruption\u0000of cholesterol micelles by Bile Salt Hydrolase (BSH). According to research, there are significant\u0000therapeutic ramifications in understanding the complex interactions between the gut microbiome\u0000and host cholesterol metabolism. More study is required to comprehend the causal mechanisms\u0000further and produce new methods for lowering microbiota-mediated cholesterol to enhance human\u0000health.\u0000","PeriodicalId":10850,"journal":{"name":"Current Biotechnology","volume":"24 19","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140258107","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Exploring the Depths of Marine Biotechnology: Discoveries, Diversity, and Future Horizons 探索海洋生物技术的奥秘:发现、多样性和未来展望
Pub Date : 2024-02-21 DOI: 10.2174/0122115501291361240213105224
Manoj Kumar Mishra, Ajay Kumar Shukla, S. K. Dev, Razi Ahmad
Among the various technological advancements in different fields that help fulfill ourneeds further, marine biotechnology is one that has brought a significant change in the overallbleak outlook of the limited resources that the oceans have to offer. Marine biotechnology has notjust revolutionized the method of farming and increased productivity, but it has also ensured a consistentsupply to various cuisines throughout the world. In recent years, marine biotechnology hasoutgrown its traditional image in the seafood-related industry to one that caters to a plethora of industriessuch as enzyme technology, pharmaceuticals, tanning industry, cancer therapeutics, cosmeticindustry, biodegradable polymers, and bioremediation. These are a few among a broad spectrumof industries where it finds applications and many more are yet to be explored. Remarkably,marine biotechnology has not only helped restore the normal local flora and fauna of the oceansbut has also contributed extensively to conservation efforts. In this review, an attempt has beenmade to follow the trails of the wide applicability of marine biotechnology as well as its impact onvarious sectors in recent years.
不同领域的各种技术进步有助于进一步满足我们的需求,其中海洋生物技术为有限的海洋资源带来了重大改变。海洋生物技术不仅彻底改变了养殖方法,提高了生产率,而且还确保了世界各地各种美食的稳定供应。近年来,海洋生物技术已经摆脱了其在海产品相关行业的传统形象,开始涉足酶技术、制药、制革行业、癌症治疗、化妆品行业、生物可降解聚合物和生物修复等众多行业。这些只是海洋生物技术在众多行业中应用的一小部分,还有更多行业有待开发。值得注意的是,海洋生物技术不仅帮助恢复了当地正常的海洋动植物群,还为海洋保护工作做出了巨大贡献。在这篇综述中,我们试图追踪近年来海洋生物技术广泛应用的轨迹及其对各行各业的影响。
{"title":"Exploring the Depths of Marine Biotechnology: Discoveries, Diversity, and Future Horizons","authors":"Manoj Kumar Mishra, Ajay Kumar Shukla, S. K. Dev, Razi Ahmad","doi":"10.2174/0122115501291361240213105224","DOIUrl":"https://doi.org/10.2174/0122115501291361240213105224","url":null,"abstract":"\u0000\u0000Among the various technological advancements in different fields that help fulfill our\u0000needs further, marine biotechnology is one that has brought a significant change in the overall\u0000bleak outlook of the limited resources that the oceans have to offer. Marine biotechnology has not\u0000just revolutionized the method of farming and increased productivity, but it has also ensured a consistent\u0000supply to various cuisines throughout the world. In recent years, marine biotechnology has\u0000outgrown its traditional image in the seafood-related industry to one that caters to a plethora of industries\u0000such as enzyme technology, pharmaceuticals, tanning industry, cancer therapeutics, cosmetic\u0000industry, biodegradable polymers, and bioremediation. These are a few among a broad spectrum\u0000of industries where it finds applications and many more are yet to be explored. Remarkably,\u0000marine biotechnology has not only helped restore the normal local flora and fauna of the oceans\u0000but has also contributed extensively to conservation efforts. In this review, an attempt has been\u0000made to follow the trails of the wide applicability of marine biotechnology as well as its impact on\u0000various sectors in recent years.\u0000","PeriodicalId":10850,"journal":{"name":"Current Biotechnology","volume":"9 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140444430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Factors Affecting the Micropropagation of Sapindus trifoliatus from Nodal Explants of Mature Tree 影响从成熟树的节部外植体微繁殖三叶无患子的因素
Pub Date : 2024-01-17 DOI: 10.2174/0122115501289941240109061526
Pooja Asthana, Manoj K. Rai, U. Jaiswal
Explant recalcitrance is one of the major challenges during the tissue culture of a tree species, especially when explants are derived from mature plants. It is mainly as-sociated with the genotypes/species, source and physiological status of explants, seasonal varia-tions, and competency/incompetency of explants towards PGRs for in vitro manipulations. There-fore, to optimize the appropriate conditions and minimize explant recalcitrance, it is necessary to elucidate the different factors influencing the tissue culture of a tree species.Several factors influencing in vitro shoot induction from nodal explants derived from mature plants of Sapindus trifoliatus were investigated.Nodal segment obtained from mature plants was used as an explant for shoot regenera-tion. The factors assessed in this study included the types and concentrations of plant growth reg-ulators, nutrient composition of MS (Murashige and Skoog) medium, sucrose concentrations, the position of nodes on their respective branches, seasonal variations, and successive transfers of mother explant.The performance of nodal explants was better on modified MS medium, i.e., M4 medi-um (half-strength of MS major salts and full-strengths of MS minor salts, Fe-EDTA and MS or-ganic nutrients each) than the full-strength MS medium. The addition of BAP in the medium re-sulted in a higher shoot induction rate than other cytokinins i.e., Kin, Zeatin, TDZ. M4 medium supplemented with 3.0 mg l-1 BAP and 2% sucrose was optimum for shoot proliferation. Howev-er, elongation of shoots was observed only when induced shoots, along with the mother explant, were subcultured on a medium containing 1.0 mg l-1 BAP. The shoot multiplication was positive-ly affected by the repeated transfer of the mother explant for different passages on the multiplica-tion medium. Mother explant transferred to multiplication medium (0.8% agar-solidified M4 me-dium + 2% sucrose + 1.0 mg l-1 BAP) proliferated maximum shoots after fourth passages. Regen-erated shoots were rooted in vitro and further successfully acclimatized in field conditions.The in vitro regeneration system developed from an explant obtained from mature trees can be successfully exploited for mass multiplication of Sapindus trifoliatus, a medicinally and commercially important tree.
外植体复活力是树种组织培养过程中的主要挑战之一,尤其是当外植体来自成熟植株时。它主要与基因型/品种、外植体的来源和生理状态、季节变化以及外植体对离体操作所需的 PGRs 的适应性/不适应性有关。因此,为了优化适当的条件并尽量减少外植体的抗逆性,有必要阐明影响树种组织培养的不同因素。本研究调查了从三叶无患子(Sapindus trifoliatus)成熟植株上提取的节状外植体体外诱导芽的几个影响因素。本研究评估的因素包括植物生长调节剂的类型和浓度、MS(Murashige 和 Skoog)培养基的营养成分、蔗糖浓度、节在各自分枝上的位置、季节变化以及母体外植体的连续转移、在改良的 MS 培养基上,即 M4 medium-um(半浓度的 MS 主要盐类和全浓度的 MS 次要盐类、Fe-EDTA 和 MS 或有机营养素)上,节的外植体表现优于全浓度的 MS 培养基。与其他细胞分裂素(如 Kin、Zeatin 和 TDZ)相比,在培养基中添加 BAP 会导致更高的芽诱导率。添加了 3.0 mg l-1 BAP 和 2% 蔗糖的 M4 培养基对嫩芽增殖最为适宜。然而,只有在含有 1.0 mg l-1 BAP 的培养基上对诱导芽和母体外植体进行移栽时,才能观察到芽的伸长。将母体外植体在增殖培养基上重复不同的传代,对芽的增殖有积极影响。母体外植体转移到增殖培养基(0.8%琼脂固化的 M4 铵+2%蔗糖+1.0 mg l-1 BAP)上,第四次传代后增殖的芽最多。从成熟树木获得的外植体开发的体外再生系统可成功用于无患子的大规模繁殖,无患子是一种具有重要药用和商业价值的树木。
{"title":"Factors Affecting the Micropropagation of Sapindus trifoliatus from Nodal Explants of Mature Tree","authors":"Pooja Asthana, Manoj K. Rai, U. Jaiswal","doi":"10.2174/0122115501289941240109061526","DOIUrl":"https://doi.org/10.2174/0122115501289941240109061526","url":null,"abstract":"\u0000\u0000Explant recalcitrance is one of the major challenges during the tissue culture of a tree species, especially when explants are derived from mature plants. It is mainly as-sociated with the genotypes/species, source and physiological status of explants, seasonal varia-tions, and competency/incompetency of explants towards PGRs for in vitro manipulations. There-fore, to optimize the appropriate conditions and minimize explant recalcitrance, it is necessary to elucidate the different factors influencing the tissue culture of a tree species.\u0000\u0000\u0000\u0000Several factors influencing in vitro shoot induction from nodal explants derived from mature plants of Sapindus trifoliatus were investigated.\u0000\u0000\u0000\u0000Nodal segment obtained from mature plants was used as an explant for shoot regenera-tion. The factors assessed in this study included the types and concentrations of plant growth reg-ulators, nutrient composition of MS (Murashige and Skoog) medium, sucrose concentrations, the position of nodes on their respective branches, seasonal variations, and successive transfers of mother explant.\u0000\u0000\u0000\u0000The performance of nodal explants was better on modified MS medium, i.e., M4 medi-um (half-strength of MS major salts and full-strengths of MS minor salts, Fe-EDTA and MS or-ganic nutrients each) than the full-strength MS medium. The addition of BAP in the medium re-sulted in a higher shoot induction rate than other cytokinins i.e., Kin, Zeatin, TDZ. M4 medium supplemented with 3.0 mg l-1 BAP and 2% sucrose was optimum for shoot proliferation. Howev-er, elongation of shoots was observed only when induced shoots, along with the mother explant, were subcultured on a medium containing 1.0 mg l-1 BAP. The shoot multiplication was positive-ly affected by the repeated transfer of the mother explant for different passages on the multiplica-tion medium. Mother explant transferred to multiplication medium (0.8% agar-solidified M4 me-dium + 2% sucrose + 1.0 mg l-1 BAP) proliferated maximum shoots after fourth passages. Regen-erated shoots were rooted in vitro and further successfully acclimatized in field conditions.\u0000\u0000\u0000\u0000The in vitro regeneration system developed from an explant obtained from mature trees can be successfully exploited for mass multiplication of Sapindus trifoliatus, a medicinally and commercially important tree.\u0000","PeriodicalId":10850,"journal":{"name":"Current Biotechnology","volume":" November","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139617911","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Investigation on Cross-correction of Cystinosis through GeneticallyEngineered Cells Secreting Cystinosin 关于通过分泌胱氨酸酶的基因工程细胞交叉矫正胱氨酸病的研究
Pub Date : 2023-12-04 DOI: 10.2174/0122115501271925231130074832
V. Graceffa
Cystinosis is a rare inherited lysosomal storage disease (LSD), caused bya mutation in the Cystinosin Lysosomal Cystine Transporter (CTNS). Novel therapies and strategies are needed to improve patients' clinical conditions and quality of life.This study assessed whether CTNS can be secreted, and investigated amethod to enhance its secretion, by adding a secretion signal to the N-terminus. Human Embryonic Kidney (HEK) 293 cells were transfected with the resulting construct. The amount of proteinsecreted was then measured. Uptake by monolayer cultures of cystinotic cells and enzyme activity were also assessed.The recombinant protein could effectively be secreted, and the secretion signal slightlyfurther increased its secretion. The secreted recombinant protein was taken up by cystinotic cells,and, after internalization, still retained its biological activity.Optimization of the proposed method to increase the secretion of CTNS would provide new insights into the production of recombinant proteins for medical and industrial use. Further identification and screening of alternative signalling peptides and cell types can maximise thesecretion and production of recombinant CNTS, to be used as a therapeutic agent in humanhealthcare.
胱氨酸病是一种罕见的遗传性溶酶体贮积病(LSD),由胱氨酸溶酶体胱氨酸转运蛋白(CTNS)突变引起。需要新的治疗方法和策略来改善患者的临床状况和生活质量。本研究评估了CTNS是否可以分泌,并研究了通过在n端添加分泌信号来增强其分泌的方法。用构建物转染人胚胎肾(HEK) 293细胞。然后测量蛋白质的分泌量。还评估了单层培养的胱氨酸细胞的吸收和酶活性。重组蛋白能有效分泌,且分泌信号微弱,进一步增加其分泌。分泌的重组蛋白被胱氨酸细胞吸收,内化后仍保持其生物活性。优化所提出的方法以增加CTNS的分泌,将为生产用于医疗和工业用途的重组蛋白提供新的见解。进一步鉴定和筛选可选择的信号肽和细胞类型可以最大限度地促进重组碳纳米管的分泌和产生,从而作为人类医疗保健中的治疗剂。
{"title":"Investigation on Cross-correction of Cystinosis through Genetically\u0000Engineered Cells Secreting Cystinosin","authors":"V. Graceffa","doi":"10.2174/0122115501271925231130074832","DOIUrl":"https://doi.org/10.2174/0122115501271925231130074832","url":null,"abstract":"\u0000\u0000Cystinosis is a rare inherited lysosomal storage disease (LSD), caused by\u0000a mutation in the Cystinosin Lysosomal Cystine Transporter (CTNS). Novel therapies and strategies are needed to improve patients' clinical conditions and quality of life.\u0000\u0000\u0000\u0000This study assessed whether CTNS can be secreted, and investigated a\u0000method to enhance its secretion, by adding a secretion signal to the N-terminus. Human Embryonic Kidney (HEK) 293 cells were transfected with the resulting construct. The amount of protein\u0000secreted was then measured. Uptake by monolayer cultures of cystinotic cells and enzyme activity were also assessed.\u0000\u0000\u0000\u0000The recombinant protein could effectively be secreted, and the secretion signal slightly\u0000further increased its secretion. The secreted recombinant protein was taken up by cystinotic cells,\u0000and, after internalization, still retained its biological activity.\u0000\u0000\u0000\u0000Optimization of the proposed method to increase the secretion of CTNS would provide new insights into the production of recombinant proteins for medical and industrial use. Further identification and screening of alternative signalling peptides and cell types can maximise the\u0000secretion and production of recombinant CNTS, to be used as a therapeutic agent in human\u0000healthcare.\u0000","PeriodicalId":10850,"journal":{"name":"Current Biotechnology","volume":"22 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138602511","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Docking Complexes of Active Phytochemicals with VK-deficient Genes 活性植物化学物质与vk缺陷基因的对接复合物
Pub Date : 2023-10-25 DOI: 10.2174/0122115501250686231017061958
Shalini Rajagopal, Archa Nair, Rutuja Digraskar, Alekya Allu, Jalaja Naravula, Saji Menon, Sivaramaiah Nallapeta, Anil Kumar S, Sugunakar Vuree, G Bhanuprakash Reddy, Polavarapu Kavi, Bipin G. Nair, Girinath G. Pillai, Prashanth N Suravajhala, Renuka Suravajhala
Background:: Vitamin K (VK) deficiency occurs when the body does not have enough vitamin K to produce proteins that are essential for blood clotting and bone health. Vitamin K is a cofactor that plays a major role in various comorbidities. Over the years, efforts have been made to identify the interaction between natural compounds, such as K vitamers, that could play a sig-nificant role in regulation of the blood coagulation. We intended to obtain insights into the poten-tial therapeutic implications of phytochemicals for treating VK deficiency-related diseases by in-vestigating the interactions between phytochemicals and VK-deficient genes. Methods:: On active phytochemical docking complexes with VK-deficient genes, there is no spe-cific information available as of yet. In this computationally aided docking study, we were inter-ested in finding the pathogenic blood coagulation-related genes that are linked to VK deficiency. Based on literature reviews and databases, bioactive phytochemicals and other ligands were con-sidered. To provide precise predictions of ligand-protein interactions, docking parameters and scoring algorithms were thoroughly optimized. We have performed molecular docking studies and observed the way the complexes interact. Results:: Specific binding interactions between active phytochemicals and VK pathogenic muta-tions have been identified by the docking study. Hydrogen bonds, van der Waals interactions, and hydrophobic contacts, which are indications of high binding affinities, have been observed in the ligand-protein complexes. Few phytochemicals have demonstrated the ability to interact with the targets of VK-deficient genes, indicating their capacity to modify pathways relevant to VK defi-ciency. The results of the docking study have explained the three pathogenic genes, viz. VWF, F8, and CFTR, wherein VWF and F8 play important roles in blood coagulation and people with cyst-ic fibrosis, to have a deficiency in vitamin K. Thirty-five compounds from different plant and natural sources were screened through molecular docking, out of which two compounds have been considered as controls, including curcumin and warfarin (R-warfarin and S-warfarin), which are the most common anticoagulants readily available in the market. They act by inhibiting vita-min K epoxide reductase (VKOR), which is needed for the gamma-carboxylation of vitamin K-dependent factors. Conclusion:: A focus on other compounds, like theaflavin, ellagic acid, myricetin, and catechin was also made in this study as they show more binding affinity with the three pathogenic proteins. Based on the results, the complexes have been found to possess great potential and thus may be considered for further interaction studies. The potential for active phytochemicals to generate docking complexes with VK-deficient genes is highlighted in this computational analysis. Health disorders related to VK insufficiency may be significantly impacted by these interactions. To val-id
背景:当身体没有足够的维生素K来产生凝血和骨骼健康所必需的蛋白质时,就会发生维生素K缺乏症。维生素K是一种辅助因子,在各种合并症中起主要作用。多年来,人们一直在努力确定天然化合物(如维生素K)之间的相互作用,它们可能在血液凝固调节中发挥重要作用。我们打算通过研究植物化学物质与VK缺乏基因之间的相互作用来深入了解植物化学物质在治疗VK缺乏相关疾病方面的潜在治疗意义。方法:关于与vk缺陷基因的活性植物化学对接复合物,目前尚无具体信息。在这项计算辅助对接研究中,我们感兴趣的是寻找与VK缺乏相关的致病性凝血相关基因。在查阅文献和数据库的基础上,考虑了具有生物活性的植物化学物质和其他配体。为了准确预测配体与蛋白质的相互作用,对接参数和评分算法进行了全面优化。我们进行了分子对接研究,观察了配合物相互作用的方式。结果:通过对接研究,已经确定了活性植物化学物质与VK致病突变之间的特异性结合相互作用。氢键,范德华相互作用,疏水接触,这是高结合亲和的迹象,已经观察到配体-蛋白质复合物。很少有植物化学物质被证明能够与VK缺乏基因的靶标相互作用,这表明它们有能力改变与VK缺乏相关的途径。对接研究结果解释了VWF、F8和CFTR这三个致病基因,其中VWF和F8在凝血和囊性纤维化患者中发挥重要作用,导致维生素k缺乏。通过分子对接筛选了35种不同植物和天然来源的化合物,其中两种化合物被认为是对照,包括姜黄素和华法林(r -华法林和s -华法林)。哪些是市场上最常见的抗凝血剂。它们通过抑制维生素K环氧化还原酶(VKOR)起作用,这是维生素K依赖因子的γ -羧基化所需要的。结论:由于茶黄素、鞣花酸、杨梅素和儿茶素与三种致病蛋白的结合亲和力更强,本研究也对其他化合物进行了重点研究。基于这些结果,发现这些配合物具有很大的潜力,因此可以考虑进行进一步的相互作用研究。这种计算分析强调了活性植物化学物质与vk缺陷基因产生对接复合物的潜力。与VK不足相关的健康障碍可能受到这些相互作用的显著影响。为了验证预期的相互作用并确定已确定的植物化学物质的治疗潜力,需要进行更多的实验研究,包括体外和体内实验。结论:本研究通过AutoDock4对维生素K等药物的三种不同致病变异进行了详细的研究,并可视化了它们与PyMOL的相互作用。VWF、CFTR和F8在维生素K途径中起凝血作用。本实验对VWF、CFTR和F8针对35个配体的致病性snp进行了硅片研究,其中5个被认为是重要的对照配体,分别是s -华法林、r -华法林,以及茶素、姜黄素和鞣花酸等其他配体。最重要的配体是黄素和鞣花酸配合物,它们提供了最好的高结合能。我们的发现将指导在转录组研究中进一步实验变异分析的潜在治疗发明的研究。其他:对接研究证明,维生素k3介导的hel和a - β42纤维形成的抑制可以通过与蛋白水解抗性或聚集易感区域的相互作用启动(Alam et al., 2016)。VK3对SARS-CoV-2 3CL pro具有强抑制活性,该研究旨在开发抗病毒药物(Wang et al., 2021)。SARS-CoV-2 3CLpro是将病毒多蛋白转化为成熟非结构蛋白所必需的,这使其成为抗病毒药物开发的一个有希望的靶点。与一千多种化学物质相比,维生素K3而不是维生素K1、K2或K4显示出对SARS-CoV-2的显著抑制作用。然后,为了确定维生素K3可以与sars - cov - 23clpro形成共价连接,进行了时间依赖性抑制实验。在我们的研究中,我们考虑了叶绿醌(VK1),蛋白质为6MSM (-4.94 kcal/mol)和7KVE(-2)。 7KWO的A链与ASN2118相互作用(-3.97 kcal/mol), B链与SER723相互作用(-7.87kcal/mol),两者均无相互作用残基。7KVE (-2.70 kcal/mol)和7KWO (-5.70 kcal/mol)的B链蛋白在与甲基萘醌(VK2)相互作用时没有相互作用残基。然而,6MSM的其他蛋白(-4.01 kcal/mol)和7KWO的A链(-2.22 kcal/mol)与ASN2118相互作用。在比较VK1和VK2时,一条7KWO链与ASN2118的相同残基相互作用。之后,通过进一步的质谱分析和分子对接研究,证实了维生素K3与sars - cov - 23clpro之间的共价相互作用(Wang et al., 2021)。另一项研究是对金黄色葡萄球菌进行的,金黄色葡萄球菌是医院获得性感染的常见来源。norA外排泵是通过在金黄色葡萄球菌中表达norA基因而产生的。因此,本工作的目的是通过抑制NorA泵基因表达来确认甲萘醌对外排抑制的作用,并研究甲萘醌对细菌膜的影响。在分子对接中,甲萘醌的存在引起荧光强度的上升。发现Menadione在100%的簇中与NorA残基ILE12、ILE15、PHE16、ILE19、PHE47、GLN51、ALA105和MET109相互作用。在我们的研究中,Menadione产率为-4.62 kcal/mol,与ARG1739、ARG1621在7KVE内相互作用;7KWO A链-4.37 kcal/mol (LEU1975, ALA1974);-5.96 kcal/mol (GLN1069)在7KWO的B链上,而另一个蛋白6MSM,估计抑制常数为-4.31 kcal/mol,并且不与任何残基相互作用。模拟研究表明,许多甲萘醌分子能够穿过双分子层,使水分子进入双分子层的疏水区域(Tintino et al., 2020)。(Murad et al., 2022)研究了对细菌耐力至关重要的代谢途径(如维生素K2途径)中未来治疗靶点的结构和功能分析。实验证明了所设计的肽的产生,并对其抑制金黄色葡萄球菌dna硫酯酶(SaDHNA)的能力进行了测试。Asp16和Glu31与硫酯酶活性和假定活性位点底物结合的功能相关性是通过位点定向诱变SaDHNA建立的。未来限制维生素K2生产途径的药物开发和设计研究将受益于SaDHNA的高分辨率结构和更多关于底物结合的信息。最近,(Czogalla et al., 2018)研究了口服抗凝剂(OACs)与药物结合的关系,并验证了VKORC1和VKORC1L1的推定相互作用残基,并且通过计算机分析证明了华法林结合的酶特异性差异与较低的OAC敏感性。华法林作为维生素K环氧化物还原酶(VKOR)的抑制剂,催化维生素K醌和维生素K 2,3-环氧化物的还原,这是维持维生素K依赖蛋白的γ-羧化所必需的过程。VKOR也是华法林的治疗靶点,被用作治疗血栓性疾病的抗凝剂。虽然华法林是应用最广泛的抗凝剂,但华法林抑制其靶点的维生素K还原的机制及其结构和功能基础尚不清楚。(Czogalla et al., 2017)研究了非竞争性华法林抑制的流行概念,因为维生素K和华法林在VKOR上共享结合位点,包括Phe55, Phe55是结合底物或抑制剂的关键残基。另一项研究表明华法林阻断hVKOR的动态电子转移过程。选择性地抑制这种主要的hVKOR细胞形式,而破坏Cys51-Cys132二硫会损害华法林结合并导致华法林耐药性,结构模拟得出结论,封闭的华法林结合口袋被Cys51-Cys132连锁稳定
{"title":"Docking Complexes of Active Phytochemicals with VK-deficient Genes","authors":"Shalini Rajagopal, Archa Nair, Rutuja Digraskar, Alekya Allu, Jalaja Naravula, Saji Menon, Sivaramaiah Nallapeta, Anil Kumar S, Sugunakar Vuree, G Bhanuprakash Reddy, Polavarapu Kavi, Bipin G. Nair, Girinath G. Pillai, Prashanth N Suravajhala, Renuka Suravajhala","doi":"10.2174/0122115501250686231017061958","DOIUrl":"https://doi.org/10.2174/0122115501250686231017061958","url":null,"abstract":"Background:: Vitamin K (VK) deficiency occurs when the body does not have enough vitamin K to produce proteins that are essential for blood clotting and bone health. Vitamin K is a cofactor that plays a major role in various comorbidities. Over the years, efforts have been made to identify the interaction between natural compounds, such as K vitamers, that could play a sig-nificant role in regulation of the blood coagulation. We intended to obtain insights into the poten-tial therapeutic implications of phytochemicals for treating VK deficiency-related diseases by in-vestigating the interactions between phytochemicals and VK-deficient genes. Methods:: On active phytochemical docking complexes with VK-deficient genes, there is no spe-cific information available as of yet. In this computationally aided docking study, we were inter-ested in finding the pathogenic blood coagulation-related genes that are linked to VK deficiency. Based on literature reviews and databases, bioactive phytochemicals and other ligands were con-sidered. To provide precise predictions of ligand-protein interactions, docking parameters and scoring algorithms were thoroughly optimized. We have performed molecular docking studies and observed the way the complexes interact. Results:: Specific binding interactions between active phytochemicals and VK pathogenic muta-tions have been identified by the docking study. Hydrogen bonds, van der Waals interactions, and hydrophobic contacts, which are indications of high binding affinities, have been observed in the ligand-protein complexes. Few phytochemicals have demonstrated the ability to interact with the targets of VK-deficient genes, indicating their capacity to modify pathways relevant to VK defi-ciency. The results of the docking study have explained the three pathogenic genes, viz. VWF, F8, and CFTR, wherein VWF and F8 play important roles in blood coagulation and people with cyst-ic fibrosis, to have a deficiency in vitamin K. Thirty-five compounds from different plant and natural sources were screened through molecular docking, out of which two compounds have been considered as controls, including curcumin and warfarin (R-warfarin and S-warfarin), which are the most common anticoagulants readily available in the market. They act by inhibiting vita-min K epoxide reductase (VKOR), which is needed for the gamma-carboxylation of vitamin K-dependent factors. Conclusion:: A focus on other compounds, like theaflavin, ellagic acid, myricetin, and catechin was also made in this study as they show more binding affinity with the three pathogenic proteins. Based on the results, the complexes have been found to possess great potential and thus may be considered for further interaction studies. The potential for active phytochemicals to generate docking complexes with VK-deficient genes is highlighted in this computational analysis. Health disorders related to VK insufficiency may be significantly impacted by these interactions. To val-id","PeriodicalId":10850,"journal":{"name":"Current Biotechnology","volume":"65 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135218845","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
In vitro Regeneration of Multiple Shoots in Abelmoschus esculentus (L.) Moench (Okra) via Apical Shoot Meristem Culture 青豆多芽离体再生的研究秋葵根尖分生组织培养的研究
Pub Date : 2023-10-25 DOI: 10.2174/0122115501261522231013100629
Melvin A. Daniel, S. Maria Packiam, Duraipandiyan Veeramuthu
Introduction: To develop the efficient protocol for multiple shoot regeneration of A.esculentus by apical root culture method. Abelmoschus esculentus L., commonly known as okra, is a member of the Malvaceae family, which is widely consumed due to its high nutrient content and potential therapeutic properties. Okra contains various bioactive compounds that exhibit antibacterial properties and may be useful in treating type-2 diabetes, digestive diseases, and liver detoxification. To select the plant for the present and prepare the efficient protocol for the development of multiple shoot regeneration culture method. Methods: In this study, we developed an efficient protocol for multiple shoot regeneration of A. esculentus using the apical shoot culture method. Mature shoot apex explants of the germinated A. esculentus genotype CoBhH1 were cultured on Murashige and Skoog (MS) medium supplemented with different concentrations of cytokinins (BAP and TDZ) and auxins (IAA and NAA) to determine the optimal conditions for shoot induction. Results: The highest number of multiple shoots (27.04 shoots) was obtained with 0.8 mg/L TDZ. Excised shoots were cultured on MS medium supplemented with GA3, which induced elongation of the shoots to a maximum of 8-10 cm. Regenerated plantlets were successfully transferred to soil, with a 100% survival rate and no differences in morphology or growth characteristics compared to control plants. Rooting was achieved with 1 mg/L IBA. Conclusion: This study provides an efficient protocol for multiple shoot regeneration of A. esculentus through apical shoot culture, which has potential applications in plant breeding and genetic engineering.
前言:研究金银花根尖培养法再生多芽的高效方案。秋葵(Abelmoschus esculentus L.),俗称秋葵,是一种葵科植物,因其高营养含量和潜在的治疗特性而被广泛食用。秋葵含有多种具有抗菌特性的生物活性化合物,可能对治疗2型糖尿病、消化系统疾病和肝脏排毒有用。目的:选择适宜的植株,为多芽再生培养方法的发展制定有效的方案。方法:采用顶芽培养的方法,建立了一套高效的多根再生方案。以萌发后CoBhH1基因型黄瓜茎尖成熟外植体为材料,在添加不同浓度细胞分裂素(BAP和TDZ)和生长素(IAA和NAA)的Murashige和Skoog (MS)培养基上培养,确定诱导芽的最佳条件。结果:TDZ用量为0.8 mg/L时,多芽数最多,达27.04根;在MS培养基中添加GA3,可诱导芽伸长,最大可达8-10 cm。再生植株移栽成功,成活率100%,形态和生长特征与对照植株无差异。添加1mg /L IBA可生根。结论:本研究提供了一种高效的竹叶顶茎再生方案,在植物育种和基因工程中具有潜在的应用价值。
{"title":"In vitro Regeneration of Multiple Shoots in Abelmoschus esculentus (L.) Moench (Okra) via Apical Shoot Meristem Culture","authors":"Melvin A. Daniel, S. Maria Packiam, Duraipandiyan Veeramuthu","doi":"10.2174/0122115501261522231013100629","DOIUrl":"https://doi.org/10.2174/0122115501261522231013100629","url":null,"abstract":"Introduction: To develop the efficient protocol for multiple shoot regeneration of A.esculentus by apical root culture method. Abelmoschus esculentus L., commonly known as okra, is a member of the Malvaceae family, which is widely consumed due to its high nutrient content and potential therapeutic properties. Okra contains various bioactive compounds that exhibit antibacterial properties and may be useful in treating type-2 diabetes, digestive diseases, and liver detoxification. To select the plant for the present and prepare the efficient protocol for the development of multiple shoot regeneration culture method. Methods: In this study, we developed an efficient protocol for multiple shoot regeneration of A. esculentus using the apical shoot culture method. Mature shoot apex explants of the germinated A. esculentus genotype CoBhH1 were cultured on Murashige and Skoog (MS) medium supplemented with different concentrations of cytokinins (BAP and TDZ) and auxins (IAA and NAA) to determine the optimal conditions for shoot induction. Results: The highest number of multiple shoots (27.04 shoots) was obtained with 0.8 mg/L TDZ. Excised shoots were cultured on MS medium supplemented with GA3, which induced elongation of the shoots to a maximum of 8-10 cm. Regenerated plantlets were successfully transferred to soil, with a 100% survival rate and no differences in morphology or growth characteristics compared to control plants. Rooting was achieved with 1 mg/L IBA. Conclusion: This study provides an efficient protocol for multiple shoot regeneration of A. esculentus through apical shoot culture, which has potential applications in plant breeding and genetic engineering.","PeriodicalId":10850,"journal":{"name":"Current Biotechnology","volume":"17 3-4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135167626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
In silico Mining of Protein-coding and Non-coding RNA (ncRNA) Specific Genes in Exotic versus Indigenous Gaddi Dogs 外来加迪犬与本地加迪犬蛋白质编码和非编码RNA (ncRNA)特异性基因的计算机挖掘
Pub Date : 2023-10-24 DOI: 10.2174/0122115501261640231017061158
Shilpa Tewari, Chandra Shekhar Mukhopadhyay
Background: Comparative functional genomics will aid in the molecular identification of diverse dog breeds. Methods: The current proposal aimed at conducting a differential study between the genomes of exotic canines (Labrador, Basenji, Tasha-Boxer breed, Mischka breed German Shepherd, Zoey breed Great Dane) and indigenous (Gaddi) breeds through whole genome annotation. Result: The prediction analysis by GeneMark tool yielded an average of 46484 transcripts, in Gaddi dogs and exotic breeds ranging from 29669 to 30956. A total of 57 miRNAs were discovered in exotic breeds and 22 miRNAs in Gaddi dogs, 18 are common in both, while 4 were unique to Gaddi dogs. lncRNA was predicted using the PLEK, CPAT, and LGC tools, resulting in 3201, 396, and 4188 noncoding sequences in exotic breeds, respectively. Approximately, 31 thousand lncRNA transcripts were identified in the Gaddi dog genome. Microsatellites were found to be distributed through approximately 0.3% of both genomes. The average island length of CpG ranged between 24246.48 to 28080.66 in exotic breeds at chromosome level assembly and 697.15 in indigenous Gaddi dogs at contig level assembly. The predicted protein-coding genes were subjected to pathway analysis by DAVID and PANTHER. Five genes that are expressed in the blood (INSL3, CLDN3, MYH1, CLN5, and GALC) were selected for validation through qPCR. The results indicated that the genes were expressed in both groups. Conclusion: The study is the maiden report on the comparative genome analysis between indigenous Gaddi dogs and exotic dog breeds. The findings set the stage for further research into the known and novel genes, which might be employed as biomarkers for disease diagnosis and to investigate their regulatory role. other: Acknowledgment: The authors gratefully acknowledge the funding provided by the Department of Biotechnology, Government of India, through the collaborative research project “Parentage Determination and Cytogenetic Profiling in Dogs (DBT-19I)” and Dr. S.K Mahajan, who assisted with sample collection, deserves special recognition.
背景:比较功能基因组学将有助于不同犬种的分子鉴定。方法:本提案旨在通过全基因组注释对外来犬(拉布拉多、巴森吉、塔沙-拳师犬、米什卡犬、德国牧羊犬、佐伊犬)和本土犬(加迪犬)的基因组进行差异研究。结果:通过GeneMark工具进行预测分析,平均得到46484个转录本,在Gaddi犬和外来犬种中,转录本的数量在29669 ~ 30956之间。在外来品种中发现了57种mirna,在Gaddi犬中发现了22种mirna,其中18种在两者中都是常见的,而4种在Gaddi犬中是独特的。使用PLEK、CPAT和LGC工具预测lncRNA,在外来品种中分别得到3201、396和4188个非编码序列。大约有31000个lncRNA转录本在Gaddi狗基因组中被鉴定出来。发现微卫星分布在大约0.3%的两个基因组中。在染色体水平上,外来犬种CpG的平均岛长在24246.48 ~ 28080.66之间,在群水平上,本地犬的CpG岛长为697.15。预测的蛋白编码基因由DAVID和PANTHER进行通路分析。选择在血液中表达的5个基因(INSL3、CLDN3、MYH1、CLN5和GALC),通过qPCR进行验证。结果表明,这些基因在两组中均有表达。结论:本研究首次报道了本地加迪犬和外来犬种的基因组比较分析。这一发现为进一步研究已知和新基因奠定了基础,这些基因可能被用作疾病诊断的生物标志物,并研究它们的调节作用。致谢:作者感谢印度政府生物技术部通过合作研究项目“狗的亲子鉴定和细胞遗传学分析(DBT-19I)”提供的资金,并特别感谢S.K Mahajan博士协助收集样本。
{"title":"In silico Mining of Protein-coding and Non-coding RNA (ncRNA) Specific Genes in Exotic versus Indigenous Gaddi Dogs","authors":"Shilpa Tewari, Chandra Shekhar Mukhopadhyay","doi":"10.2174/0122115501261640231017061158","DOIUrl":"https://doi.org/10.2174/0122115501261640231017061158","url":null,"abstract":"Background: Comparative functional genomics will aid in the molecular identification of diverse dog breeds. Methods: The current proposal aimed at conducting a differential study between the genomes of exotic canines (Labrador, Basenji, Tasha-Boxer breed, Mischka breed German Shepherd, Zoey breed Great Dane) and indigenous (Gaddi) breeds through whole genome annotation. Result: The prediction analysis by GeneMark tool yielded an average of 46484 transcripts, in Gaddi dogs and exotic breeds ranging from 29669 to 30956. A total of 57 miRNAs were discovered in exotic breeds and 22 miRNAs in Gaddi dogs, 18 are common in both, while 4 were unique to Gaddi dogs. lncRNA was predicted using the PLEK, CPAT, and LGC tools, resulting in 3201, 396, and 4188 noncoding sequences in exotic breeds, respectively. Approximately, 31 thousand lncRNA transcripts were identified in the Gaddi dog genome. Microsatellites were found to be distributed through approximately 0.3% of both genomes. The average island length of CpG ranged between 24246.48 to 28080.66 in exotic breeds at chromosome level assembly and 697.15 in indigenous Gaddi dogs at contig level assembly. The predicted protein-coding genes were subjected to pathway analysis by DAVID and PANTHER. Five genes that are expressed in the blood (INSL3, CLDN3, MYH1, CLN5, and GALC) were selected for validation through qPCR. The results indicated that the genes were expressed in both groups. Conclusion: The study is the maiden report on the comparative genome analysis between indigenous Gaddi dogs and exotic dog breeds. The findings set the stage for further research into the known and novel genes, which might be employed as biomarkers for disease diagnosis and to investigate their regulatory role. other: Acknowledgment: The authors gratefully acknowledge the funding provided by the Department of Biotechnology, Government of India, through the collaborative research project “Parentage Determination and Cytogenetic Profiling in Dogs (DBT-19I)” and Dr. S.K Mahajan, who assisted with sample collection, deserves special recognition.","PeriodicalId":10850,"journal":{"name":"Current Biotechnology","volume":"18 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135315918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Prospection Of Therapeutic Agents Targeting Aurora Kinase, A Protein In The Treatment Of Acute Lymphoblastic Leukemia 靶向蛋白极光激酶治疗急性淋巴细胞白血病的药物研究进展
Pub Date : 2023-07-31 DOI: 10.2174/2211550112666230731104518
Ana Beatriz da Lima, F. P. Mesquita, Pedro Filho Noronha Souza, R. Montenegro, C. R. de Andrade
Acute lymphoblastic leukemia (ALL) is characterized by an imbalance in the production and development of hematopoietic lymphoid cells, a malignant disease capable of affecting the proliferation-selection of hematopoietic cells. The Aurora kinase A protein participates in several steps of the mitosis process. Its deregulation can trigger the process of carcinogenesis, which has become a therapeutic target of interest for computational prediction and the development of inhibitory drugs. Studies report its overexpression in malignant cells of patients with ALL.The present study aims to prospect new molecules to identify a potential inhibitor of Aurora kinase A for the pharmaceutical market.Virtual screening and molecular docking study was performed using the MCULE and DockThor web servers. The pharmacodynamic and pharmacokinetic profile of the molecules were evaluated using the Swiss ADME and ProTox-II programs were used.Ten molecules were identified by virtual screening, in which only two, MCULE-349 and MCULE-796, showed the best score, binding, at the site of action of the protein, interacting positively with amino acids, lipid-soluble molecules with low toxicity and with violation of only 1 Lipinski rule.Both molecules interact with the site of action, acting as inhibitors or blockers of the catalytic site, becoming potential Aurora kinase A inhibitors and anticancer molecules.
急性淋巴细胞白血病(Acute lymphoblastic leukemia, ALL)以造血淋巴细胞的产生和发育不平衡为特征,是一种能够影响造血细胞增殖选择的恶性疾病。极光激酶A蛋白参与有丝分裂过程的几个步骤。它的放松可以触发癌变过程,这已经成为计算预测和抑制性药物开发的治疗靶点。研究报告它在ALL患者的恶性细胞中过表达。本研究旨在寻找新的分子,以确定潜在的药物市场上的极光激酶a抑制剂。使用mule和DockThor web服务器进行虚拟筛选和分子对接研究。使用瑞士ADME和ProTox-II程序评估分子的药效学和药代动力学特征。通过虚拟筛选筛选出10个分子,其中MCULE-349和MCULE-796两个分子得分最高,在蛋白作用位点结合,与氨基酸、低毒性脂溶性分子正相互作用,仅违反1利平斯基规则。这两种分子与作用位点相互作用,作为催化位点的抑制剂或阻滞剂,成为潜在的极光激酶A抑制剂和抗癌分子。
{"title":"Prospection Of Therapeutic Agents Targeting Aurora Kinase, A Protein In The Treatment Of Acute Lymphoblastic Leukemia","authors":"Ana Beatriz da Lima, F. P. Mesquita, Pedro Filho Noronha Souza, R. Montenegro, C. R. de Andrade","doi":"10.2174/2211550112666230731104518","DOIUrl":"https://doi.org/10.2174/2211550112666230731104518","url":null,"abstract":"\u0000\u0000Acute lymphoblastic leukemia (ALL) is characterized by an imbalance in the production and development of hematopoietic lymphoid cells, a malignant disease capable of affecting the proliferation-selection of hematopoietic cells. The Aurora kinase A protein participates in several steps of the mitosis process. Its deregulation can trigger the process of carcinogenesis, which has become a therapeutic target of interest for computational prediction and the development of inhibitory drugs. Studies report its overexpression in malignant cells of patients with ALL.\u0000\u0000\u0000\u0000The present study aims to prospect new molecules to identify a potential inhibitor of Aurora kinase A for the pharmaceutical market.\u0000\u0000\u0000\u0000Virtual screening and molecular docking study was performed using the MCULE and DockThor web servers. The pharmacodynamic and pharmacokinetic profile of the molecules were evaluated using the Swiss ADME and ProTox-II programs were used.\u0000\u0000\u0000\u0000Ten molecules were identified by virtual screening, in which only two, MCULE-349 and MCULE-796, showed the best score, binding, at the site of action of the protein, interacting positively with amino acids, lipid-soluble molecules with low toxicity and with violation of only 1 Lipinski rule.\u0000\u0000\u0000\u0000Both molecules interact with the site of action, acting as inhibitors or blockers of the catalytic site, becoming potential Aurora kinase A inhibitors and anticancer molecules.\u0000","PeriodicalId":10850,"journal":{"name":"Current Biotechnology","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78891766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Biocatalytic Attributes of Laccase and its Applications in Bioremediation 漆酶的生物催化性质及其在生物修复中的应用
Pub Date : 2023-07-21 DOI: 10.2174/2211550112666230721102406
Reena Gupta, D. Sharma, Manisha Sharma, Rutika Sehgal, Sunita Borkar
Laccases are proteins with multiple copper atoms that utilize molecular oxygen to catalyze the oxidation of organic compounds by a radical-catalyzed mechanism. They are the main focus of researchers due to their varied applications, for example, waste detoxification, textile transformation, and biosensor applications. Laccases help in the degradation of xenobiotics, such as polycyclic aromatic hydrocarbons, pesticides, and chlorinated phenolics. They are used to bleach textiles and decolorize dyes. They also play a bioremediatory role in the pulp and paper industry for the detoxification of effluent.Moreover, laccases help in the removal of detrimental micropollutants, such as nonylphenol and bisphenol A. They also degrade wastewater contaminants, such as 2-hydroxybiphenyl, naproxen, and diethyl phthalate. The remarkable biocatalytic attributes of laccases, coupled with their wide range of applications, make them a promising solution for the treatment of pollutants and contaminants.
漆酶是具有多个铜原子的蛋白质,利用分子氧通过自由基催化机制催化有机化合物的氧化。由于它们的各种应用,例如废物解毒,纺织品转化和生物传感器应用,它们是研究人员的主要焦点。漆酶有助于降解外源生物,如多环芳烃、农药和氯化酚。它们被用来漂白纺织品和脱色染料。它们还在纸浆和造纸工业中发挥生物修复作用,用于废水的解毒。此外,漆酶有助于去除有害的微污染物,如壬基酚和双酚a。它们还能降解废水污染物,如2-羟基联苯、萘普生和邻苯二甲酸二乙酯。漆酶卓越的生物催化特性,加上其广泛的应用,使其成为处理污染物和污染物的有希望的解决方案。
{"title":"Biocatalytic Attributes of Laccase and its Applications in Bioremediation","authors":"Reena Gupta, D. Sharma, Manisha Sharma, Rutika Sehgal, Sunita Borkar","doi":"10.2174/2211550112666230721102406","DOIUrl":"https://doi.org/10.2174/2211550112666230721102406","url":null,"abstract":"\u0000\u0000Laccases are proteins with multiple copper atoms that utilize molecular oxygen to catalyze the oxidation of organic compounds by a radical-catalyzed mechanism. They are the main focus of researchers due to their varied applications, for example, waste detoxification, textile transformation, and biosensor applications. Laccases help in the degradation of xenobiotics, such as polycyclic aromatic hydrocarbons, pesticides, and chlorinated phenolics. They are used to bleach textiles and decolorize dyes. They also play a bioremediatory role in the pulp and paper industry for the detoxification of effluent.\u0000Moreover, laccases help in the removal of detrimental micropollutants, such as nonylphenol and bisphenol A. They also degrade wastewater contaminants, such as 2-hydroxybiphenyl, naproxen, and diethyl phthalate. The remarkable biocatalytic attributes of laccases, coupled with their wide range of applications, make them a promising solution for the treatment of pollutants and contaminants.\u0000","PeriodicalId":10850,"journal":{"name":"Current Biotechnology","volume":"55 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87631788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Mini Review on the Application of Chitosan Composites for the Adsorption of Fluoride from Aqueous Solution 壳聚糖复合材料在水溶液中吸附氟的应用综述
Pub Date : 2023-07-19 DOI: 10.2174/2211550112666230719121415
Clint Sutherland, Beverly Chittoo, Abd-Allah Islam
Exploration into the development of cost-effective and eco-friendly adsorbents for the removal of fluoride continues to be unabated. The modification of chitosan through thedevelopment of composites and derivatives has shown great promise over the past decade.These modifications aim to overcome the limitation of chitosan, such as separability and adsorptioncapacity.The objective of this study is to review various modifications to chitosan for defluoridation, the resulting adsorption capacities, operational parameters that appreciably influence the fullscale application of adsorption systems and, where reported, the mechanisms that influenced the adsorption process.Among the adsorbents reviewed, most of the processes were best modelledby the Langmuir isotherm and the pseudo-second order model. Chitosan composites were able toachieve significantly higher F-adsorption capacities and compared well to other adsorbents in theliterature. Gamma degraded chitosan-Fe(III) beads, 10%-Lanthanum-incorporated chitosan beadsand neodymium-modified chitosan were found to easily achieve the WHO drinking water limit of1.5 mg/L. In all instances, the reactions were spontaneous and endothermic. Fluoride adsorptionwas shown to increase from the acidic region to near neutral pH followed by a decrease into the alkaline range.The presence of competing ions is a major operational parameter for full-scale adsorption applications. The presence of carbonate and bicarbonate ions has been a consistent hindrance inreported studies. Thus, future investigations are warranted in this area.
开发具有成本效益和生态友好的除氟吸附剂的探索继续有增无减。近十年来,壳聚糖复合材料及其衍生物的改性研究显示出巨大的发展前景。这些改性旨在克服壳聚糖的可分离性和吸附能力等局限性。本研究的目的是回顾壳聚糖的各种脱氟改性,由此产生的吸附能力,影响吸附系统全面应用的操作参数,以及已报道的影响吸附过程的机制。在所综述的吸附剂中,大多数过程最好用Langmuir等温线和拟二级模型来模拟。壳聚糖复合材料的f吸附能力明显高于文献中其他吸附剂。伽玛降解壳聚糖-铁(III)珠、10%镧掺入壳聚糖珠和钕修饰壳聚糖珠易于达到世界卫生组织饮用水限值1.5 mg/L。在所有情况下,反应都是自发的吸热反应。氟化物的吸附从酸性区域增加到接近中性pH值,然后减少到碱性范围。竞争离子的存在是全面吸附应用的主要操作参数。在报道的研究中,碳酸盐和碳酸氢盐离子的存在一直是一个障碍。因此,有必要在这一领域进行进一步的调查。
{"title":"A Mini Review on the Application of Chitosan Composites for the Adsorption of Fluoride from Aqueous Solution","authors":"Clint Sutherland, Beverly Chittoo, Abd-Allah Islam","doi":"10.2174/2211550112666230719121415","DOIUrl":"https://doi.org/10.2174/2211550112666230719121415","url":null,"abstract":"\u0000\u0000Exploration into the development of cost-effective and eco-friendly adsorbents for the removal of fluoride continues to be unabated. The modification of chitosan through the\u0000development of composites and derivatives has shown great promise over the past decade.\u0000These modifications aim to overcome the limitation of chitosan, such as separability and adsorption\u0000capacity.\u0000\u0000\u0000\u0000The objective of this study is to review various modifications to chitosan for defluoridation, the resulting adsorption capacities, operational parameters that appreciably influence the fullscale application of adsorption systems and, where reported, the mechanisms that influenced the adsorption process.\u0000\u0000\u0000\u0000Among the adsorbents reviewed, most of the processes were best modelled\u0000by the Langmuir isotherm and the pseudo-second order model. Chitosan composites were able to\u0000achieve significantly higher F\u0000-\u0000adsorption capacities and compared well to other adsorbents in the\u0000literature. Gamma degraded chitosan-Fe(III) beads, 10%-Lanthanum-incorporated chitosan beads\u0000and neodymium-modified chitosan were found to easily achieve the WHO drinking water limit of\u00001.5 mg/L. In all instances, the reactions were spontaneous and endothermic. Fluoride adsorption\u0000was shown to increase from the acidic region to near neutral pH followed by a decrease into the alkaline range.\u0000\u0000\u0000\u0000The presence of competing ions is a major operational parameter for full-scale adsorption applications. The presence of carbonate and bicarbonate ions has been a consistent hindrance in\u0000reported studies. Thus, future investigations are warranted in this area.\u0000","PeriodicalId":10850,"journal":{"name":"Current Biotechnology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85320026","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
期刊
Current Biotechnology
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1