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Network Pharmacology, Molecular Docking, and Molecular Dynamics Simulation Revealed the Molecular Targets and Potential Mechanism of Nauclea Latifolia in the Treatment of Breast Cancer. 网络药理学、分子对接和分子动力学模拟揭示了Nauclea Latifolia治疗乳腺癌的分子靶点和潜在机制
IF 2.3 3区 化学 Q3 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2024-11-06 DOI: 10.1002/cbdv.202402423
Cromwel Tepap Zemnou

Breast cancer (BRCA) incidence is increasing, posing a significant public health challenge and necessitating effective treatment solutions. Nauclea latifolia (N. latifolia) has shown anticancer activity against multidrug-resistant BRCA cells, though its mechanism of action remains unclear. We used online databases Swiss target prediction and GeneCards to identify therapeutic targets for BRCA and active compounds in N. latifolia. Protein-protein interaction (PPI) network was constructed using the STRING database and Cytoscape. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyses were performed using the DAVID database. Molecular docking, gene expression and survival analyses of core targets were conducted using Autodock 4.0 and GEPIA2 database. We identified 141 intersecting targets for BRCA and N. latifolia compounds, with key targets including ALB, AKT1, ESR1, STAT3, EGFR, SRC, PTGS2, GSK3B, MMP9, and PPAR1. These targets are involved in cell proliferation and death through pathways such as the PI3K-Akt signaling system, metabolic pathways, cancer pathways, and proteoglycans in cancer. Gene expression and survival analysis indicated these targets as potential markers for BRCA treatment prognosis. This study provides insights into the mechanism of action of N. latifolia against BRCA cells and give a basis to clinicians for future drug development.

乳腺癌(BRCA)发病率不断上升,对公共卫生构成了重大挑战,需要有效的治疗方案。花叶女贞(Nauclea latifolia)对耐多药的 BRCA 细胞具有抗癌活性,但其作用机制仍不清楚。我们利用在线数据库瑞士靶点预测和基因卡片来确定 BRCA 的治疗靶点和 N. latifolia 的活性化合物。利用 STRING 数据库和 Cytoscape 构建了蛋白质-蛋白质相互作用(PPI)网络。利用 DAVID 数据库进行了基因本体(GO)和京都基因组百科全书(KEGG)通路富集分析。使用 Autodock 4.0 和 GEPIA2 数据库对核心靶点进行了分子对接、基因表达和存活分析。我们确定了 BRCA 和 N. latifolia 复合物的 141 个交叉靶点,主要靶点包括 ALB、AKT1、ESR1、STAT3、表皮生长因子受体、SRC、PTGS2、GSK3B、MMP9 和 PPAR1。这些靶点通过 PI3K-Akt 信号系统、代谢途径、癌症途径和癌症中的蛋白聚糖等途径参与细胞增殖和死亡。基因表达和生存分析表明,这些靶点是 BRCA 治疗预后的潜在标志物。这项研究深入揭示了 N. latifolia 对 BRCA 细胞的作用机制,为临床医生未来的药物开发提供了依据。
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引用次数: 0
Minor Lignans with Inhibitory Activity against LPS-induced NO Production from Schisandra chinensis. 五味子中具有抑制 LPS 诱导的 NO 生成活性的小分子木酚素
IF 2.3 3区 化学 Q3 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2024-11-05 DOI: 10.1002/cbdv.202402354
Ping Sun, Xin-Cheng Zhuang, Rui Ao, Hua Zhang

Phytochemical investigation into the fruits of Schisandra chinensis led to the isolation of seven new minor lignans, schisanchignans A-G (1-7), including one benzofuran type (1), three aryltetralin type (2-4) and three tetrahydrofuran type (5-7). Their structures were established by comprehensive spectroscopic analyses, and the absolute configurations were determined by electronic circular dichroism technique including quantum chemical calculation method. Of note, this is the first report of nor-benzofuran and aryltetralin types of lignans from S. chinensis. Compounds 1, 3 and 4 exhibited mild inhibitory activity against the lipopolysaccharide-induced production of nitric oxide in murine RAW264.7 cells.

通过对五味子果实的植物化学研究,分离出七种新的次要木脂素,即五味子木脂素 A-G(1-7),包括一种苯并呋喃类(1)、三种芳基四氢呋喃类(2-4)和三种四氢呋喃类(5-7)。通过综合光谱分析确定了它们的结构,并利用电子圆二色性技术和量子化学计算方法确定了它们的绝对构型。值得注意的是,这是首次从盐肤木中发现正苯并呋喃和芳基四氢萘类木脂素。化合物 1、3 和 4 对脂多糖诱导的小鼠 RAW264.7 细胞产生一氧化氮有轻微的抑制作用。
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引用次数: 0
Unraveling Water-Soluble Constituents of Basil (Ocimum basilicum L.) in Relation to Their Toxicity and Anti-Typhoidal Activity in Mouse Models. 揭示罗勒(Ocimum basilicum L.)的水溶性成分与其在小鼠模型中的毒性和抗伤寒活性的关系
IF 2.3 3区 化学 Q3 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2024-11-05 DOI: 10.1002/cbdv.202401284
Chandan Singh Chanotiya, Kamlesh Yadav, Shubham Srivastava, Raj K Lal, A Mishra, Laldingngheti Bawitlung, Deepika Srivastava, A Pal, Yatish Pant

Plants are the major source of natural flavour ingredients reported for their wide applications in food and pharmaceuticals, oral care and wellness products, etc. We have investigated the water-soluble fractions (WSF) of basil tetraploid (O. basilicum L.) for their toxicity and biological potential against Salmonella Typhimurium, a pathogen causing around one million cases of illnesses in the United States every year. The WSF obtained using a Clevenger-type apparatus was further divided into two equal parts, one each for in-vivo toxicity evaluation and quality assessments, respectively. The proportions of major phenylpropanoid identified as meta-eugenol in the WSF were found in the range of 42.8-57.9%, which was substantially in higher proportion as compared to essential oil (20.9-23.0%). Based on sub-acute oral toxicity data, WSF has not shown any adverse effect with levels as high as 500 µL/25g body weight in Swiss albino mice. Besides, the WSF also exhibited a maximum reduction in bacterial load in mice infected with Salmonella Typhimurium in a dose-dependent manner. We have shown the biological potential of basil water-soluble fraction as an effective bacterial load-suppressing agent for the prevention of Salmonella infections in animal model.

据报道,植物是天然香料成分的主要来源,可广泛应用于食品、药品、口腔护理和保健产品等领域。我们研究了罗勒四倍体(O. basilicum L.)的水溶性馏分(WSF)对伤寒沙门氏菌的毒性和生物潜力。使用 Clevenger 型仪器获得的 WSF 被进一步分成两等份,每份分别用于体内毒性评估和质量评估。经鉴定,WSF 中的主要苯丙酮类化合物为偏丁香酚,所占比例为 42.8%-57.9%,与精油(20.9%-23.0%)相比,比例要高得多。根据亚急性口服毒性数据,WSF 在瑞士白化小鼠体内的浓度高达 500 µL/25g 体重时也未显示出任何不良影响。此外,WSF 还能以剂量依赖的方式最大程度地减少小鼠感染伤寒沙门氏菌后的细菌量。我们证明了罗勒水溶性成分作为一种有效的细菌负荷抑制剂,在动物模型中预防沙门氏菌感染的生物潜力。
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引用次数: 0
Identification of New Compounds from the Roots of Rubia tibetica Hook. f. 鉴定茜草根中的新化合物
IF 2.3 3区 化学 Q3 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2024-11-05 DOI: 10.1002/cbdv.202401792
Qing Li, Min-Min Gu, Yu Zhang, Jin Wang, Yun-Yun Su, Hao-Lin Yu, Chen-Sen Xu, Zhi-Xin Liao

Rubia tibetica Hook. f is a traditional Tibetan medicinal plant, with its roots serving as the primary medicinal part. Two new compounds, Rubiaxylm C and E (1 and 3), and one new natural compound, Rubiaxylm D (2) were isolated from R. tibetica, along with five known compounds (4-8). The structures of the previously undescribed compounds were elucidated by HR-ESIMS, 1D/2D NMR spectroscopic data and electronic circular dichroism calculations. Compound 1 is a rare anthrone substituted with a carbonyl group at position 1. Furthermore, all isolated compounds were tested for their cytotoxicity against HepG2 cell lines.

西藏茜草(Rubia tibetica Hook. f)是一种传统的藏药用植物,其根部是主要的药用部分。从茜草中分离出了两种新化合物 Rubiaxylm C 和 E(1 和 3),一种新的天然化合物 Rubiaxylm D(2),以及五种已知化合物(4-8)。通过 HR-ESIMS、一维/二维核磁共振光谱数据和电子圆二色性计算,阐明了以前未曾描述过的化合物的结构。化合物 1 是一种罕见的在第 1 位被羰基取代的蒽酮。此外,还测试了所有分离化合物对 HepG2 细胞系的细胞毒性。
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引用次数: 0
Alkaloids Isolated from Vepris glandulosa with Antidiabetic Properties: An In Vitro and In Silico Analysis. 从 Vepris glandulosa 中分离出的具有抗糖尿病特性的生物碱:体外和硅学分析
IF 2.3 3区 化学 Q3 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2024-11-04 DOI: 10.1002/cbdv.202401515
Prince Ojuka, Charles O Ochieng, Wilberforce Ndarawit, Daniel W Nyongesa, Justus Mukavi, James Nyabuga Nyariki, Seth Apollo, Cleydson B R Santos, Njogu M Kimani

Diabetes is a major global health issue and as current treatments fail, the search for new antidiabetic drugs is crucial. This investigation, focusing on identifying potential antidiabetic compounds from the endangered plant species Vepris glandulosa, led to the isolation of two known alkaloids, choisyine acetate (1) and choisyine (2). The study established the in vitro inhibitory activities and in silico molecular interaction of the two alkaloids with α-amylase based on IC50 values, Linewaever-Burk/Dixon plot kinetic analyses and Molecular docking, respectively. The α-amylase inhibition assay revealed noncompetitive inhibition for both compounds with IC50 and Ki values of 4.74±0.17 and 4.75 mM for compound 1, and 11.29±0.44 and 12.37 mM for compound 2, respectively. In comparison, the standard drug acarbose displayed a competitive mode of inhibition, with IC50 and Ki values of 11.99±0.02 and 12.68 mM, respectively. The binding affinities with α-amylase were -6.42 and -6.07 kcal/mol for compounds 1 and 2, respectively relative to acarbose -8.03 Kcal/mol. Moreover, the predicted physicochemical and ADMET properties of these two compounds justified their potential as lead compounds for drug discovery. These compounds demonstrated remarkable inhibition potential comparable to the standard drug, highlighting their potential as viable alternatives in the management of diabetes.

糖尿病是一个重大的全球健康问题,由于目前的治疗方法无效,寻找新的抗糖尿病药物至关重要。这项研究的重点是从濒危植物物种 Vepris glandulosa 中鉴定潜在的抗糖尿病化合物,最终分离出了两种已知的生物碱:醋酸雏菊碱(1)和雏菊碱(2)。研究根据 IC50 值、Linewaever-Burk/Dixon 图动力学分析和分子对接,分别确定了这两种生物碱的体外抑制活性以及与 α 淀粉酶的硅学分子相互作用。α-淀粉酶抑制实验表明,这两种生物碱对α-淀粉酶具有非竞争性抑制作用,化合物1的IC50和Ki值分别为4.74±0.17和4.75 mM,化合物2的IC50和Ki值分别为11.29±0.44和12.37 mM。相比之下,标准药物阿卡波糖显示出竞争性抑制模式,IC50 和 Ki 值分别为 11.99±0.02 和 12.68 mM。相对于阿卡波糖-8.03 Kcal/mol的结合亲和力,化合物1和2与α-淀粉酶的结合亲和力分别为-6.42和-6.07 kcal/mol。此外,这两种化合物的预测理化和 ADMET 特性证明了它们作为药物发现先导化合物的潜力。这些化合物表现出了与标准药物相当的显著抑制潜力,突显了它们作为治疗糖尿病的可行替代品的潜力。
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引用次数: 0
Amazonins: New Peptaibol Sequences from an Endophytic Strain of Trichoderma amazonicum. Amazonins:来自内生菌株金黄毛霉的新 Peptaibol 序列。
IF 2.3 3区 化学 Q3 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2024-11-04 DOI: 10.1002/cbdv.202400611
Gleucinei Dos Santos Castro, Thiago Fernandes Sousa, Ingride Jarline Santos da Silva, Débora Sena Raposo, José Carlos Ipuchima da Silva, Evelyn Peñaloza, Rafael Garrett, Michel Eduardo Beleza Yamagishi, Gilvan Ferreira da Silva, Hector Henrique Ferreira Koolen

Three new putative sequences of 14-residue peptaibols, named amazonins I-III were characterized from the endophytic fungus Trichoderma amazonicum via genome mining, high-performance liquid chromatography coupled to high-resolution tandem mass spectrometry (LC-MS/MS), and molecular networking. Bioinformatic analysis of the T. amazonicum genome assembly revealed 63 clusters of biosynthetic genes (BGCs) related to secondary metabolites, including a nonribosomal peptide synthetase accountable for the biosynthesis of the discovered peptide sequences. Analysis of the adenylation domains, along with manual interpretation of MS/MS spectra, allowed extensive annotation of the new peptaibol sequences. The combination of bioinformatic tools and LC-MS/MS provides a better opportunity to characterize and identify new peptaibol sequences. Thus, the importance of studies on the production and characterization of peptaibols produced by Trichoderma species from the Amazon region is highlighted.

通过基因组挖掘、高效液相色谱耦合高分辨串联质谱(LC-MS/MS)和分子网络,研究人员从内生真菌Trichoderma amazonicum中鉴定出了三种新的14残基肽酚推定序列,并将其命名为amazonins I-III。对 T. amazonicum 基因组的生物信息学分析发现了 63 个与次生代谢物有关的生物合成基因(BGC)群,其中包括一个负责生物合成所发现的肽序列的非核糖体肽合成酶。通过对腺苷酸化结构域的分析以及对 MS/MS 图谱的人工解读,对新的多肽序列进行了广泛的注释。生物信息学工具与 LC-MS/MS 的结合为表征和鉴定新的七叶皂苷序列提供了更好的机会。因此,对亚马逊地区毛霉菌产生的七叶酚的生产和特征进行研究的重要性就凸显出来了。
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引用次数: 0
Synthesis and Evaluation of 3,5-Disubstituted-1,2,4-Oxadiazolyl Benzamides as Potential Anti-Breast Cancer Agents: In Vitro and In Silico Studies. 作为潜在抗乳腺癌药物的 3,5-二取代-1,2,4-恶二唑基苯甲酰胺的合成与评估:体外和硅学研究。
IF 2.3 3区 化学 Q3 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2024-11-04 DOI: 10.1002/cbdv.202402020
Mohammad Asad, Shahid Karim, Sanobar Hasan, Mohammad Faheem Khan, Waseem Ahmad Ansari, Youssof Al Said, Mohammad Imran Khan, Mohammad Saquib, Mohd Kamil Hussain

Herein, the synthesis, anti-cancer evaluation, and in silico studies of a series of 1,2,4-oxadiazole compounds (8-15) are disclosed. The synthesized molecules were tested in vitro for anti-cancer activity against MCF-7, MDA-MB-231, HeLa, Ishikawa cell lines and human embryonic kidney (HEK-293) cell lines. Among the synthesized compounds, 9 and 15 exhibited significant cytotoxicity, with IC50 values of 7.82 μM and 6.02 μM, respectively, against MCF-7 cell line, better than that of anti-breast cancer drug, tamoxifen (IC50 = 11.92 μM), used as control. Significantly, both 9 and 15 exhibited very low toxicity (IC50 > 20 µM) against normal HEK-293 cells. This suggests them as potentially effective anti-cancer lead molecules. The in vitro anti-cancer data was supported by in silico studies which also identified compounds 9 and 15 as potent inhibitors of the 17β-hydroxysteroid dehydrogenase1 (17β-HSD1) proteins, demonstrating strong interactions and stability The atom-based QSAR model exhibited high accuracy, significant regression, and predictive reliability, aiding in understanding and optimizing biological activity. The drug-likeness study of compounds 9 and 15 indicated favorable pharmacokinetics, with in silico toxicity predictions showing compound 15 to be non-toxic. These findings suggest compounds 9 and 15 as potential lead molecules against breast cancer.

本文公开了一系列 1,2,4-恶二唑化合物(8-15)的合成、抗癌评估和硅学研究。体外测试了合成分子对 MCF-7、MDA-MB-231、HeLa、Ishikawa 细胞系和人类胚胎肾(HEK-293)细胞系的抗癌活性。在合成的化合物中,9 和 15 具有显著的细胞毒性,对 MCF-7 细胞株的 IC50 值分别为 7.82 μM 和 6.02 μM,优于作为对照的抗乳腺癌药物他莫昔芬(IC50 = 11.92 μM)。值得注意的是,9 和 15 对正常 HEK-293 细胞的毒性都很低(IC50 > 20 µM)。这表明它们可能是有效的抗癌先导分子。基于原子的 QSAR 模型表现出很高的准确性、显著的回归性和预测可靠性,有助于理解和优化生物活性。化合物 9 和 15 的药物相似性研究表明其具有良好的药代动力学特性,硅学毒性预测表明化合物 15 无毒。这些发现表明,化合物 9 和 15 有可能成为抗击乳腺癌的先导分子。
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引用次数: 0
Evaluation of Dermal Wound Healing Potential: Phytochemical Characterization, Anti-inflammatory, Antioxidant, and Antimicrobial Activities of Euphorbia guyoniana Boiss. & Reut. Latex. 皮肤伤口愈合潜力评估:Euphorbia guyoniana Boiss.乳汁。
IF 2.3 3区 化学 Q3 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2024-11-04 DOI: 10.1002/cbdv.202402284
Khaoula Segueni, Atef Chouikh, Salah Eddine Laouini, Abderrhmane Bouafia, Mohammed Laid Tlili, Ibtissam Laib, Ouafa Boudebia, Yahia Khelef Khelef, Mahmood M S Abdullah, Johar Amin Ahmed Abdullah, Talha Bin Emran

This study investigates the wound-healing potential of Euphorbia guyoniana latex (EGL) in male Wistar rats, along with its biochemical composition and biological activities. Phytochemical analysis identified moderate levels of phenolics, flavonoids, and tannins, with HPLC revealing five phenolic compounds. EGL demonstrated strong antioxidant activity in DPPH assays, surpassing ascorbic acid in protecting red blood cells. Its performance in the ß-carotene-linoleic acid assay was robust, though its FRAP assay results were weaker. EGL also exhibited significant anti-inflammatory activity, comparable to Acetylsalicylic acid, and showed antibacterial effects against Listeria innocua. In Vivo, EGL-infused ointments accelerated wound healing, reducing epithelialization periods to 12-16 days, with a higher wound contraction rate compared to controls. The study concludes that EGL, rich in bioactive compounds, holds potential as a promising natural agent for wound healing, owing to its potent antioxidant, anti-inflammatory, and antibacterial properties.

本研究调查了雄性 Wistar 大鼠伤口愈合的潜力及其生化成分和生物活性。植物化学分析确定了中等含量的酚类、类黄酮和单宁酸,高效液相色谱分析发现了五种酚类化合物。在 DPPH 试验中,EGL 表现出很强的抗氧化活性,在保护红细胞方面超过了抗坏血酸。它在ß-胡萝卜素-亚油酸检测中的表现也很强劲,但在 FRAP 检测中的结果较弱。EGL 还具有明显的抗炎活性,可与乙酰水杨酸媲美,并对无毒李斯特菌有抗菌作用。在体内,注入 EGL 的软膏可加速伤口愈合,将上皮化时间缩短至 12-16 天,与对照组相比,伤口收缩率更高。研究得出结论:EGL富含生物活性化合物,具有强大的抗氧化、消炎和抗菌特性,有望成为促进伤口愈合的天然药物。
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引用次数: 0
Synthesis and Cytotoxic Activities of Novel Ether Conjugates of Dihydroartemisinin and Zerumbone: Evidenced by Intergrating Network Pharmacology and In Vitro Assay. 双氢青蒿素和泽润邦的新型醚类共轭物的合成与细胞毒活性:网络药理学与体外试验相结合的证据
IF 2.3 3区 化学 Q3 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2024-11-04 DOI: 10.1002/cbdv.202401571
Ngoc Hung Truong, Phi Hung Nguyen, Huu Nghi Do, Xuan Ha Nguyen, Thanh Loc Vu, The Hai Pham, Hanh Trang Luu, Manh Cuong Nguyen, Van Chinh Luu

O-alkylation of the hydroxy compounds, including acetaminophen, starting compounds for the synthesis of the drug, and natural compounds with the bromides of dihydroartemisinin (DHA) and zerumbone, produced twenty novel ether conjugates 15a-j and 16a-j, respectively. Their structures were elucidated by 1D-, 2D-NMR, and HRMS data. Their in vitro cytotoxic activity was screened using three cancer cell lines: HepG2, HeLa, and PC-12. The results showed that eight out of ten conjugates in series 15a-j containing DHA skeleton exhibited activity against the tested cell lines, with IC50 values ranging from 4.26-47.37 µM. Notably, all conjugates in series 16a-j containing zerumbone scaffolds inhibited the growth of HepG2, HeLa, and PC12 with IC50 in the range of 4.46-35.07 µM. Using network pharmacology and molecular docking to target anti-liver cancer in the above 20 synthetic compounds, 271 intersection targets were discovered, including 5 targets with high degree values (EGFR, ESR1, AKT1, MDM2, and NFKB1). Artemisinin derivative 15i gave the highest binding energy for targets AKT1, EGFR, and NFKB1, while zerumbone-murrayafoline A ether 16g in the remaining series also gave the highest energy for proteins EGFR, AKT1, and NFKB1.

将包括对乙酰氨基酚在内的羟基化合物、合成药物的起始化合物以及天然化合物与双氢青蒿素(DHA)和泽润邦的溴化物进行 O- 烷基化反应,分别生成了 20 种新型醚共轭物 15a-j 和 16a-j。通过一维、二维-核磁共振和 HRMS 数据阐明了它们的结构。利用三种癌细胞系对它们的体外细胞毒性活性进行了筛选:HepG2、HeLa 和 PC-12。结果表明,在含有 DHA 骨架的 15a-j 系列共轭物中,有十种共轭物对所测试的细胞株具有活性,IC50 值范围为 4.26-47.37 µM。值得注意的是,16a-j 系列中所有含有 zerumbone 骨架的共轭物都能抑制 HepG2、HeLa 和 PC12 的生长,IC50 值在 4.46-35.07 µM 之间。利用网络药理学和分子对接技术对上述 20 个合成化合物进行靶向抗肝癌研究,发现了 271 个交叉靶点,其中包括 5 个具有较高靶点值的靶点(表皮生长因子受体(EGFR)、表皮生长因子受体(ESR1)、表皮生长因子受体(AKT1)、表皮生长因子受体(MDM2)和表皮生长因子受体(NFKB1))。青蒿素衍生物 15i 与靶标 AKT1、表皮生长因子受体和 NFKB1 的结合能最高,其余系列中的 Zerumbone-Murrayafoline A ether 16g 与表皮生长因子受体、AKT1 和 NFKB1 的结合能也最高。
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引用次数: 0
Preparation and optimization of hydrophilic modified pullulan encapsulated tetracycline for significant antibacterial and anti-biofilm activity against Stenotrophomonas maltophilia isolates. 制备和优化亲水性改性拉普兰胶囊四环素,使其对嗜麦芽单胞菌分离株具有显著的抗菌和抗生物膜活性。
IF 2.3 3区 化学 Q3 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2024-11-04 DOI: 10.1002/cbdv.202402252
Mahtab Asgari, Golnoosh Rezaeizadeh, Ghazal Ghajari, Zahra Azami, Parisa Behshood, Fatemeh Talebi, Tohid Piri Gharaghie

The study aimed to assess the effectiveness of these formulations against  S. maltophilia in terms of their antimicrobial and anti-biofilm properties. The physicochemical characteristics of HM-PULL-Tetracycline were analyzed using a field scanning electron microscope, X-ray dispersion, Zeta potential, and dynamic light scattering analysis. The antibacterial and anti-biofilm activity was assessed using minimal biofilm inhibitory concentration and broth micro-dilution. In addition, the biocompatibility of HM-PULL-Tetracycline was assessed by investigating its cytotoxicity on the human diploid fibroblasts (HDF) normal cell line using the MTT test. The HM-PULL-Tetracycline formulation successfully prevented biofilm formation, measuring 179.7± 2.66 nm in size and with an encapsulation efficiency of 84.86± 3.14%. It exhibited a biofilm growth inhibition rating of 69% and significantly down-regulated the expression of the smf-1, rpfF, rmlA, and spgM biofilm genes in S. maltophilia strains (p<0.05). Furthermore, the HM-PULL-Tetracycline formulation exhibited a 4 to 6-fold increase in antibacterial efficacy compared to unbound tetracycline. The HM-PULL-Tetracycline formulation demonstrated cell viability of over 90% at all doses tested against HDF normal cells. The findings of the current investigation demonstrate that HM-PULL-Tetracycline enhances the bactericidal and anti-biofilm properties without causing harm to healthy human cells. This suggests that Could be a promising approach for medication administration.

本研究旨在评估这些制剂在抗菌和抗生物膜特性方面对嗜麦芽糖酵母菌的有效性。使用现场扫描电子显微镜、X 射线分散、Zeta 电位和动态光散射分析法分析了 HM-PULL-Tetracycline 的理化特性。使用最小生物膜抑制浓度和肉汤微稀释法评估了抗菌和抗生物膜活性。此外,还利用 MTT 试验研究了 HM-PULL-Tetracycline 对人二倍体成纤维细胞(HDF)正常细胞系的细胞毒性,从而评估了 HM-PULL-Tetracycline 的生物相容性。HM-PULL-四环素制剂成功阻止了生物膜的形成,其尺寸为 179.7± 2.66 nm,封装效率为 84.86±3.14%。它对生物膜生长的抑制率为 69%,并能显著下调嗜麦芽糖酵母菌株中 smf-1、rpfF、rmlA 和 spgM 生物膜基因的表达(p
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引用次数: 0
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Chemistry & Biodiversity
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