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The Protective Effect of N-acetylcysteine against Deltamethrin-Induced Hepatotoxicity in Mice N- 乙酰半胱氨酸对溴氰菊酯诱导的小鼠肝毒性的保护作用
Q3 Biochemistry, Genetics and Molecular Biology Pub Date : 2024-02-06 DOI: 10.18502/ajmb.v16i2.14859
Ali Ameri, Alireza Rahmati, Shadi Soroushfar, Mehdi Lalehzari, Tahereh Dehghani, Hamed Haghi-Aminjan, Jebreil Shamseddin, Mahmoud Omidi
Background: Exposure to pesticides is of concern to public health officials worldwide. Deltamethrin is a synthetic pyrethroid pesticide which is widely used in agriculture and veterinary medicine. Deltamethrin poisoning is always one of the concerns in medical centers due to the deltamethrin induced hepatotoxicity. This study evaluated the hepatoprotective effects of N-acetylcysteine (NAC) against deltamethrin induced hepatotoxicity in mice Methods: A total of 40 BALB/c male mice were randomly divided into four groups; the first group was used as a control (0.5 ml normal saline); Groups 2-4 were treated with NAC [160 mg/kg Body Weight (BW)], deltamethrin (50 mg/kg BW), and NAC plus deltamethrin. At 1 and 24 hr after treatment, the animals were sacrificed and blood and liver samples were obtained for analysis and the liver/body ration, hepatic enzymes as Aspartate aminotransferase (AST), Alanine Transaminase (ALT), Alkaline phosphatase (ALP), Lactate dehydrogenase (LDH), Glutathione (GSH) content and Reactive Oxygen Species (ROS) level were measured. For comparison between more than two experimental groups, one-way ANOVA following Tukey test was used by SPSS software. Results: The deltamethrin significantly increased AST, ALT, ALP, and the level of ROS level at the end of 1 and 24 hr after treatment; while the LDH level and GSH content were decreased. Mice in the deltamethrin treated group had a higher liver/body weight ratio than in other treated groups after 24 hr. On the other hand, NAC in combination with deltamethrin significantly reduced the activities of AST, ALT, ALP, and increased GSH levels. Conclusion: This study demonstrated that NAC has a hepatoprotective role against deltamethrin-induced toxicity.
背景:接触杀虫剂是全球公共卫生官员关注的问题。溴氰菊酯是一种合成的拟除虫菊酯杀虫剂,广泛用于农业和兽医领域。由于溴氰菊酯诱发的肝毒性,溴氰菊酯中毒一直是医疗中心关注的问题之一。本研究评估了 N-乙酰半胱氨酸(NAC)对溴氰菊酯诱导的小鼠肝毒性的保护作用:将 40 只 BALB/c 雄性小鼠随机分为四组,第一组为对照组(0.5 毫升生理盐水);第二至第四组分别接受 NAC [160 毫克/千克体重(BW)]、溴氰菊酯(50 毫克/千克体重)和 NAC 加溴氰菊酯治疗。处理后 1 小时和 24 小时,动物被处死,取血液和肝脏样本进行分析,并测量肝/体配比、肝酶(天门冬氨酸氨基转移酶 (AST)、丙氨酸转氨酶 (ALT)、碱性磷酸酶 (ALP)、乳酸脱氢酶 (LDH)、谷胱甘肽 (GSH) 含量和活性氧 (ROS) 水平。对于两个以上实验组之间的比较,使用 SPSS 软件进行单因素方差分析,然后进行 Tukey 检验。结果溴氰菊酯能明显提高小鼠的谷草转氨酶(AST)、谷丙转氨酶(ALT)、谷草转氨酶(ALP)以及治疗后 1 小时和 24 小时的 ROS 水平,而 LDH 水平和 GSH 含量则有所下降。在 24 小时后,溴氰菊酯处理组小鼠的肝脏/体重比高于其他处理组。另一方面,NAC 与溴氰菊酯联用可显著降低 AST、ALT 和 ALP 的活性,并提高 GSH 水平。结论本研究表明,NAC 对溴氰菊酯诱导的毒性具有保肝作用。
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引用次数: 0
Poultry Gastrointestinal-derived Lactic Acid Bacteria (pGIT-d-LAB) Inhibit Multiple Antibiotics Resistance Bacterial and Fungal Pathogens 家禽胃肠道源性乳酸菌 (pGIT-d-LAB) 可抑制多种抗生素耐药性细菌和真菌病原体
Q3 Biochemistry, Genetics and Molecular Biology Pub Date : 2024-02-06 DOI: 10.18502/ajmb.v16i2.14862
Bolanle Adeniyi, Abimbola Adesuyi, F. Ayeni, T. Ogunbanwo, T. Agidigbi
Background: To develop a probiotic formulation for poultry feed, a few poultry gastrointestinal derived lactic acid bacteria (pGIT-d-LAB) were isolated from chicken intestinal specimens and in vitro experiment was performed to evaluate their efficacy as potential probiotic candidate. Methods: A total of 6 strains of LAB: Lactobacillus brevis (L. brevis), Lactobacillus acidophilus (L. acidophilus), Lactobacillus casei (L. casei), Pediococci spp, Lactobacillus fermentum (L. fermentum) and Lactobacillus plantarum (L. plantarum) were isolated and cultured for collection of Cell Free Supernatant (CFS). CFS collected was tested against pathogenic bacterial isolated from chicken feces as well as prevalent fungal pathogens, utilizing agar-well diffusion techniques. A preliminary investigation into the susceptibility of the pathogens to diverse antibiotics and antifungal drugs was conducted. Bacterial pathogens exhibiting resistance to a minimum of three classes of antibiotics were subsequently identified for pGIT-d-LAB CFS screening. Results: The observed results revealed that the CFS derived from the isolates exhibited varying degrees of growth inhibition against different pathogens. Among the tested pGIT-d-LAB isolates, L. acidophilus demonstrated the most prominent zone of inhibition, measuring 18 mm against Klebsiella pneumoniae ZTAC 1233. Notably, Citrobacter diversus ZTAC 1255 showed resistance to all tested pGIT-d-LAB. Quantification of the metabolites produced was performed, and peak production levels was determined. L. acidophilus produced the highest amount of lactic acid (1.789g/l), Pediococci spp. produced the highest amount of diacetyl and H202 (1.918g/l) (0.0025g/l) at 48 hr peak values respectively. Conclusion: The test isolates are potential probiotic candidates for controlling pathogens in poultry.
背景:为了开发用于家禽饲料的益生菌配方,我们从鸡的肠道标本中分离出了一些家禽胃肠道衍生乳酸菌(pGIT-d-LAB),并进行了体外实验来评估它们作为候选益生菌的功效。方法:共分离并培养了 6 株 LAB:布氏乳杆菌(L. brevis)、嗜酸乳杆菌(L. acidophilus)、干酪乳杆菌(L. casei)、木薯杆菌(Pediococci spp)、发酵乳杆菌(L. fermentum)和植物乳杆菌(L. plantarum),以收集游离细胞上清液(CFS)。利用琼脂-孔扩散技术,对从鸡粪便中分离出的致病细菌和流行的真菌病原体进行了测试。对病原体对各种抗生素和抗真菌药物的敏感性进行了初步调查。随后确定了对至少三类抗生素具有耐药性的细菌病原体,并进行 pGIT-d-LAB CFS 筛选。结果观察结果显示,从分离物中提取的 CFS 对不同病原体有不同程度的生长抑制作用。在测试的 pGIT-d-LAB 分离物中,嗜酸乳杆菌对肺炎克雷伯菌 ZTAC 1233 的抑制区最大,达 18 毫米。值得注意的是,多样化柠檬酸杆菌 ZTAC 1255 对所有测试的 pGIT-d-LAB 都表现出抗性。对产生的代谢物进行了定量,并确定了峰值产生水平。嗜酸乳杆菌产生的乳酸量最高(1.789 克/升),Pediococci 菌属产生的双乙酰和 H202 量最高(1.918 克/升),48 小时峰值分别为 0.0025 克/升。结论测试分离物是控制家禽病原体的潜在候选益生菌。
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引用次数: 0
A Simple High Yield Technique for Isolation of Wharton's Jelly-derived Mesenchymal Stem Cell 分离沃顿果冻间充质干细胞的简单高产技术
Q3 Biochemistry, Genetics and Molecular Biology Pub Date : 2024-02-06 DOI: 10.18502/ajmb.v16i2.14860
Bahareh Niknam, Arezou Azizsoltani, Neda Heidari, S. Tokhanbigli, Helia Alavifard, Mahsa Haji Valili, D. Amani, H. A. Aghdaei, Seyed Mahmoud Hashemi, Kaveh Baghaei
Background: The isolation of Mesenchymal Stem Cells (MSCs) from various tissues is possible, with the umbilical cord emerging as a competitive alternative to bone marrow. In order to fulfill the demands of cell therapy, it is essential to generate stem cells on a clinical scale while minimizing time, cost, and contamination. Here is a simple and effective protocol for isolating MSC from Wharton's Jelly (WJ-MSC) using the explant method with various supplements. Methods: Utilizing the explant method, small fragments of Wharton's jelly from the human umbilical cord were cultured in a flask. The multipotency of the isolated cells, were confirmed by their differentiation ability to osteocyte and adipocyte. Additionally, the immunophenotyping of WJ-MSCs showed positive expression of CD73, CD90, and CD105, while remaining negative for hematopoietic markers CD34 and CD45, meeting the criteria for WJ-MSC identification. Following that, to evaluate cells' proliferative capacity, various supplements, including basic Fibroblast Growth Factor (bFGF), Non-Essential amino acids (NEA), and L-Glutamine (L-Gln) were added to either alpha-Minimal Essential Medium (α-MEM) or Dulbecco's Modified Eagle's Medium-F12 (DMEM-F12), as the basic culture media. Results: WJ-MSCs isolated by the explant method were removed from the tissue after seven days and transferred to the culture medium. These cells differentiated into adipocyte and osteocyte lineages, expressing CD73, CD90, and CD105 positively and CD34 and CD45 negatively. The results revealed that addition of bFGF to α-MEM or DMEM-F12 media significantly increased the proliferation of MSCs when compared to the control group. However, there were no significant differences observed when NEA or L-Gln were added. Conclusion: Although bFGF considerably enhances cell proliferation, our study de-monstrates that MSCs can grow and expand when properly prepared Wharton's jelly tissues of the human umbilical cord.
背景:从各种组织中分离间充质干细胞(MSCs)是可能的,脐带成为替代骨髓的一种有竞争力的方法。为了满足细胞治疗的需求,必须在临床规模上生成干细胞,同时尽量减少时间、成本和污染。下面介绍一种简单有效的方案,利用外植法和各种补充剂从沃顿果冻中分离间充质干细胞(WJ-MSC)。方法:利用外植法,在烧瓶中培养取自人体脐带的小块沃顿果冻。分离细胞的多潜能性通过其向骨细胞和脂肪细胞的分化能力得到证实。此外,WJ-间充质干细胞的免疫分型显示 CD73、CD90 和 CD105 阳性表达,而造血标记 CD34 和 CD45 阴性,符合 WJ 间充质干细胞的鉴定标准。随后,为了评估细胞的增殖能力,在基本培养基α-MEM或Dulbecco改良老鹰培养基-F12(DMEM-F12)中加入了各种补充剂,包括碱性成纤维细胞生长因子(bFGF)、非必需氨基酸(NEA)和L-谷氨酰胺(L-Gln)。结果用外植法分离的 WJ 间充质干细胞在七天后从组织中取出并转移到培养基中。这些细胞分化为脂肪细胞系和骨细胞系,阳性表达 CD73、CD90 和 CD105,阴性表达 CD34 和 CD45。结果显示,与对照组相比,在 α-MEM 或 DMEM-F12 培养基中添加 bFGF 能显著增加间充质干细胞的增殖。然而,在添加 NEA 或 L-Gln 时没有观察到明显差异。结论虽然 bFGF 能明显增强细胞增殖,但我们的研究还是证明了间充质干细胞在适当制备人脐带的沃顿果冻组织后也能生长和扩增。
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引用次数: 0
Investigating the Effects of HMGB1 Overexpression on Colorectal Cancer Cell Migration via Oncolytic Herpes simplex Virus Type 1 (oHSV-1) 通过肿瘤溶解性单纯疱疹病毒 1 型(oHSV-1)研究 HMGB1 过表达对结直肠癌细胞迁移的影响
Q3 Biochemistry, Genetics and Molecular Biology Pub Date : 2024-02-06 DOI: 10.18502/ajmb.v16i2.14863
S. Shayan, A. Arashkia, G. Bahramali, K. Azadmanesh
Background: Colorectal Cancer (CRC) represents a significant global health challenge, and its progression, resistance to therapy, and metastasis are strongly influenced by the tumor microenvironment, including factors like hypoxia. This study explores the impact of High Mobility Group Box 1 (HMGB1) overexpression on CRC cell migration, while identifying potential genes associated with this process. Methods: To explore this, we developed oncolytic virotherapy, resulting in HSV-HMGB1, an oncolytic Herpes simplex virus that expresses HMGB1. HMGB1 is known its role in cancer progression, particularly in the context of cancer cell migration. Results: Contrary to expectations, our scratch assays indicated that HSV-HMGB1 did not significantly induce migration in CRC cells, suggesting that HMGB1 might not directly contribute to this process. Employing microarray analysis, we investigated gene expression changes linked to CRC cell migration, leading to construction of a Protein-Protein Interaction (PPI) network. This network revealed the presence of hub proteins, including as NDRG1, LGALS1, and ANGPTL4, which are recognized for their roles in cancer cell migration. The differential expression of these genes under hypoxic con-ditions was further validated using quantitative RT-PCR, aligning with the findings from our microarray data.  Conclusion: Our findings emphasize the complex regulation of CRC cell migration, and provides valuable insights into potential molecular mechanisms and pathways. These findings have implications for further research into cancer progression and the development of therapeutic strategies.
背景:结肠直肠癌(CRC)是全球健康面临的重大挑战,其进展、抗药性和转移受肿瘤微环境(包括缺氧等因素)的强烈影响。本研究探讨了高迁移率组框 1(HMGB1)过表达对 CRC 细胞迁移的影响,同时确定了与这一过程相关的潜在基因。方法:为了探讨这一问题,我们开发了溶瘤病毒疗法,产生了表达 HMGB1 的溶瘤单纯疱疹病毒 HSV-HMGB1。众所周知,HMGB1 在癌症进展中起着重要作用,尤其是在癌细胞迁移过程中。结果与预期相反,我们的划痕实验表明 HSV-HMGB1 并没有明显诱导 CRC 细胞的迁移,这表明 HMGB1 可能并不直接参与这一过程。通过微阵列分析,我们研究了与 CRC 细胞迁移相关的基因表达变化,从而构建了一个蛋白-蛋白相互作用(PPI)网络。该网络揭示了枢纽蛋白的存在,包括NDRG1、LGALS1和ANGPTL4,它们在癌细胞迁移中的作用已得到公认。利用定量 RT-PCR 技术进一步验证了这些基因在缺氧条件下的差异表达,这与我们的微阵列数据结果一致。 结论我们的发现强调了 CRC 细胞迁移的复杂调控,并为潜在的分子机制和途径提供了有价值的见解。这些发现对进一步研究癌症进展和制定治疗策略具有重要意义。
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引用次数: 0
The Role of Biotechnology in Latest Therapeutic Approaches for Diabetes Mellitus 生物技术在糖尿病最新治疗方法中的作用
Q3 Biochemistry, Genetics and Molecular Biology Pub Date : 2024-02-04 DOI: 10.18502/ajmb.v16i2.14854
Sepideh Hajivalizadeh, Shahin Akhondzadeh
The Article Abstract is not available.  
文章摘要不详。
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引用次数: 0
The Role of Biotechnology in Latest Therapeutic Approaches for Diabetes Mellitus 生物技术在糖尿病最新治疗方法中的作用
Q3 Biochemistry, Genetics and Molecular Biology Pub Date : 2024-02-04 DOI: 10.18502/ajmb.v16i2.14854
Sepideh Hajivalizadeh, Shahin Akhondzadeh
The Article Abstract is not available.  
文章摘要不详。
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引用次数: 0
Orexin-1 Receptor Antagonist SB-334867 Enhances Formalin-Induced Nociceptive Behaviors in Adult Male Rats 俄勒欣-1 受体拮抗剂 SB-334867 能增强成年雄性大鼠的福尔马林诱发痛觉行为
Q3 Biochemistry, Genetics and Molecular Biology Pub Date : 2023-11-27 DOI: 10.18502/ajmb.v16i1.14168
M. Kourosh-Arami, Alireza Komaki, Masoumeh Gholami
Background: Orexin (hypocretin) is one of the hypothalamic neuropeptides that plays a critical role in some behaviors including feeding, sleep, arousal, reward processing, and drug addiction. Neurons that produce orexin are scattered mediolaterally within the Dorsomedial Hypothalamus (DMH) and the lateral hypothalamus. In the current research, we assessed the impact of prolonged application of the antagonist of Orexin Receptor 1 (OXR1) on nociceptive behaviors in adult male rats. Methods: Sixteen Wistar rats received subcutaneous (s.c.) injections of the OXR1 antagonist, SB-334867 (20 mg/kg, i.p.), or its vehicle repetitively from Postnatal Day 1 (PND1)-PND30. On the 30th day following the final application of the OXR1 antagonist formalin-provoked pain was evaluated by injecting formalin. Results: Administration of the OXR1 antagonist in the long-term augmented the formalin-provoked nociceptive behaviors in interphase and phase II of the formalin-induced pain. Conclusion: Current results showed that the continued inhibiting OXR1 might be implicated in formalin-induced nociceptive behaviors. Therefore, the present study highlighted the effect of orexin on analgesia.
背景:奥曲肽是下丘脑神经肽之一,在某些行为中起着关键作用,包括进食、睡眠、唤醒、奖赏处理和药物成瘾。产生奥曲肽的神经元散布在背内侧下丘脑(DMH)和外侧下丘脑的内侧。在目前的研究中,我们评估了长期应用奥曲肽受体 1(OXR1)拮抗剂对成年雄性大鼠痛觉行为的影响。 研究方法16只Wistar大鼠在出生后第1天(PND1)至PND30期间重复皮下注射OXR1拮抗剂SB-334867(20 mg/kg,i.p.)或其载体。在最后一次使用 OXR1 拮抗剂后的第 30 天,通过注射福尔马林评估福尔马林诱发的疼痛。 结果在福尔马林诱发疼痛的间歇期和第二阶段,长期服用 OXR1 拮抗剂会增强福尔马林诱发的痛觉行为。 结论目前的研究结果表明,持续抑制 OXR1 可能与福尔马林诱发的痛觉行为有关。因此,本研究强调了奥曲肽对镇痛的影响。
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引用次数: 0
Annexin-A5 Overexpression Increases Sensitivity of MCF-7 and MCF-7/ADR Cells to Epirubicin 过表达 Annexin-A5 可提高 MCF-7 和 MCF-7/ADR 细胞对表柔比星的敏感性
Q3 Biochemistry, Genetics and Molecular Biology Pub Date : 2023-11-27 DOI: 10.18502/ajmb.v16i1.14169
Mahshad Ghasemi, Niloofar Reiazi, A. B. Behbahani, M. Takhshid
Background: Multi-drug resistance is an important challenge in the chemotherapy of cancer. The role of annexin A5 (ANXA5) in the biology of cancer has been the focus of many studies. Breast Cancer (BC) is frequent cancer in women with high morbidity and mortality rate. The present study aimed to investigate the effects of ANXA5 overexpression on the anti-tumor activity of Epirubicin (EPI) in MCF-7 and MCF-7/ADR cells. Methods: MCF-7 and MCF-7/ADR cells were transfected with the pAdenoVator-CMV-ANXA5-IRES-GFP plasmid or mock plasmid. The overexpression of ANXA5 was evaluated using qPCR. The effects of ANXA5 overexpression and EPI on the cell viability of MCF-7 and MCF-7/ADR cells were measured using an MTT assay. Cell apoptosis was measured by annexin V/7-AAD flow cytometry assay. Results: Following the overexpression of ANXA5, the viability of MCF-7 and MCF-7/ADR was significantly decreased. Furthermore, the overexpression of ANXA5 in MCF-7 cells increased the cytotoxic effects of EPI in all doses and reduced the IC50 of EPI from 17.69 µM to 4.07 µM. Similarly, the overexpression of ANXA5 in MCF7-ADR cells reduced the IC50 of EPI from 27.3 µM to 6.69 µM. ANXA5 overexpression alone or combined with EPI treatment increased the apoptosis of MCF7 and MCF7-ADR cells.  Conclusion: The results of the present study demonstrate that ANXA5 overexpression increases the sensitivity of MCF-7 and MCF-7/ADR to EPI, suggesting a possible beneficial role of ANXA5 in the therapy of BC.
背景:多药耐药性是癌症化疗中的一个重要挑战。附件素 A5(ANXA5)在癌症生物学中的作用一直是许多研究的焦点。乳腺癌(BC)是女性的常见癌症,发病率和死亡率都很高。本研究旨在探讨 ANXA5 过表达对表柔比星(EPI)在 MCF-7 和 MCF-7/ADR 细胞中抗肿瘤活性的影响。 研究方法用 pAdenoVator-CMV-ANXA5-IRES-GFP 质粒或模拟质粒转染 MCF-7 和 MCF-7/ADR 细胞。使用 qPCR 对 ANXA5 的过表达进行评估。ANXA5 过表达和 EPI 对 MCF-7 和 MCF-7/ADR 细胞活力的影响采用 MTT 法进行测定。细胞凋亡通过附件素 V/7-AAD 流式细胞术测定。 结果过表达 ANXA5 后,MCF-7 和 MCF-7/ADR 的存活率显著下降。此外,在MCF-7细胞中过表达ANXA5增加了所有剂量EPI的细胞毒性作用,并将EPI的IC50从17.69 µM降低到4.07 µM。同样,在MCF7-ADR细胞中过表达ANXA5可将EPI的IC50从27.3 µM降至6.69 µM。单独过表达 ANXA5 或结合 EPI 处理都会增加 MCF7 和 MCF7-ADR 细胞的凋亡。 结论本研究的结果表明,ANXA5的过表达增加了MCF-7和MCF-7/ADR对EPI的敏感性,这表明ANXA5在治疗BC中可能起到有益的作用。
{"title":"Annexin-A5 Overexpression Increases Sensitivity of MCF-7 and MCF-7/ADR Cells to Epirubicin","authors":"Mahshad Ghasemi, Niloofar Reiazi, A. B. Behbahani, M. Takhshid","doi":"10.18502/ajmb.v16i1.14169","DOIUrl":"https://doi.org/10.18502/ajmb.v16i1.14169","url":null,"abstract":"Background: Multi-drug resistance is an important challenge in the chemotherapy of cancer. The role of annexin A5 (ANXA5) in the biology of cancer has been the focus of many studies. Breast Cancer (BC) is frequent cancer in women with high morbidity and mortality rate. The present study aimed to investigate the effects of ANXA5 overexpression on the anti-tumor activity of Epirubicin (EPI) in MCF-7 and MCF-7/ADR cells. Methods: MCF-7 and MCF-7/ADR cells were transfected with the pAdenoVator-CMV-ANXA5-IRES-GFP plasmid or mock plasmid. The overexpression of ANXA5 was evaluated using qPCR. The effects of ANXA5 overexpression and EPI on the cell viability of MCF-7 and MCF-7/ADR cells were measured using an MTT assay. Cell apoptosis was measured by annexin V/7-AAD flow cytometry assay. Results: Following the overexpression of ANXA5, the viability of MCF-7 and MCF-7/ADR was significantly decreased. Furthermore, the overexpression of ANXA5 in MCF-7 cells increased the cytotoxic effects of EPI in all doses and reduced the IC50 of EPI from 17.69 µM to 4.07 µM. Similarly, the overexpression of ANXA5 in MCF7-ADR cells reduced the IC50 of EPI from 27.3 µM to 6.69 µM. ANXA5 overexpression alone or combined with EPI treatment increased the apoptosis of MCF7 and MCF7-ADR cells.  Conclusion: The results of the present study demonstrate that ANXA5 overexpression increases the sensitivity of MCF-7 and MCF-7/ADR to EPI, suggesting a possible beneficial role of ANXA5 in the therapy of BC.","PeriodicalId":8669,"journal":{"name":"Avicenna journal of medical biotechnology","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139233961","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
Green Tea Extract Reduced Lipopolysaccharide-Induced Inflammation in L2 Cells as Acute Respiratory Distress Syndrome Model Through Genes and Cytokine Pro-Inflammatory 绿茶提取物通过基因和细胞因子促炎作用降低急性呼吸窘迫综合征模型 L2 细胞中脂多糖诱导的炎症反应
Q3 Biochemistry, Genetics and Molecular Biology Pub Date : 2023-11-27 DOI: 10.18502/ajmb.v16i1.14172
D. Priyandoko, Wahyu Widowati, Lenny Lenny, Sintya Novianti, Revika Revika, Hanna Sari Widya Kusuma, Ika Adhani Sholihah
Background: Acute Respiratory Distress Syndrome (ARDS) is a severe lung inflammatory condition that has the capacity to impair gas exchange and lead to hypoxemia. This condition is found to have been one of the most prevalent in patients of COVID-19 with a more serious condition. Green tea (Camellia sinensis L.) contains polyphenols that possess many health benefits. The purpose of this study was to assess the anti-inflammatory activities of green tea extract in Lipopolysaccharide (LPS)-induced lung cells as ARDS cells model. Methods: In this study, rat lung cells (L2) were induced by LPS to mimic the inflammation observed in ARDS and later treated with green tea extract. Pro-inflammatory cytokines such as Interleukin (IL)-12, C-Reactive Protein (CRP) as well as Tumor Necrosis Factor-α (TNF-α) were investigated using the ELISA method. Gene expression of NOD-Like Receptor Protein 3 (NLRP-3), Receptor for Advanced Glycation End-product (RAGE), Toll-like Receptor-4 (TLR-4), and Nuclear Factor-kappa B (NF-κB) were evaluated by qRTPCR. Apoptotic cells were measured using flow cytometry. Results: The results showed that green tea extract treatment can reduce inflammation by suppressing gene expressions of NF-κB, NLRP-3, TLR-4, and RAGE, as well as pro-inflammatory cytokines such as IL-12, TNF-α, and CRP, an acute phase protein. Apoptosis levels of inflamed cells also found to be lowered when green tea extract was administered; thus, also increasing live cells compared to non-treated cells. Conclusion: These findings could lead to the future development of supplements from green tea to help alleviate ARDS symptoms, especially during critical moments such as the current pandemic.
背景:急性呼吸窘迫综合征(ARDS)是一种严重的肺部炎症,可损害气体交换并导致低氧血症。在病情更为严重的 COVID-19 患者中,这种情况最为普遍。绿茶(Camellia sinensis L.)含有多酚,对健康有很多益处。本研究旨在评估绿茶提取物在脂多糖(LPS)诱导的 ARDS 肺细胞模型中的抗炎活性。 研究方法本研究用 LPS 诱导大鼠肺细胞(L2),模拟 ARDS 中观察到的炎症,然后用绿茶提取物处理。采用 ELISA 方法检测白细胞介素(IL)-12、C 反应蛋白(CRP)和肿瘤坏死因子-α(TNF-α)等促炎细胞因子。通过 qRTPCR 评估了 NOD 样受体蛋白 3(NLRP-3)、高级糖化终产物受体(RAGE)、Toll 样受体-4(TLR-4)和核因子-卡巴 B(NF-κB)的基因表达。使用流式细胞术测量凋亡细胞。 结果显示结果表明,绿茶提取物能抑制 NF-κB、NLRP-3、TLR-4 和 RAGE 的基因表达,以及 IL-12、TNF-α 和 CRP(一种急性期蛋白)等促炎细胞因子,从而减轻炎症反应。研究还发现,服用绿茶提取物后,炎症细胞的凋亡水平也会降低;因此,与未服用绿茶提取物的细胞相比,活细胞数量也会增加。 结论这些发现可能会促使未来开发绿茶补充剂,以帮助缓解 ARDS 症状,尤其是在当前大流行病等关键时刻。
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引用次数: 0
Extracellular L-Asparaginase Synthesis Bacillus niacin Isolation, Optimization, and Characterization from Marine Saltern Sediment Sources 从海洋盐渍沉积物来源中分离、优化和表征胞外 L-天冬酰胺酶合成烟酸芽孢杆菌
Q3 Biochemistry, Genetics and Molecular Biology Pub Date : 2023-11-27 DOI: 10.18502/ajmb.v16i1.14170
M.R. Abdul Wahab, Thirunavukkarasu Palaniyandi, John Wyson, Asha Sivaji, Swarnakala Thamada
Background: Asparagine is an amino acid that can be converted into aspartic acid and ammonia by the enzyme L-asparaginase. Some forms of cancer, such Acute Lymphoblastic Leukaemia (ALL) and Non-Hodgkin Lymphoma (NHL), respond well to this enzyme when employed as a chemotherapeutic drug. The purpose of this research was to find bacteria that can manufacture the enzymes L-asparaginasein marine slattern sediment which can be employed in commercial and industrial scale production. Methods: All of the strains were identified as Bacillus niacini spp. by biochemical and molecular testing. The strain belongs to the Bacillus genus, according to nutritional, biochemical, PCR and 16srRNA sequencing data. Results: According to the findings of this research, Bacillus niacin spp. have the potential to create a substance that is helpful in a variety of medical applications. The results of this study hint to the possibility that bacteria have the ability to produce antimicrobial compounds, which have the potential to be successful in a wide variety of environments. Conclusion: Numerous opportunities may arise for researchers interested in utilizing the medical potential of enzyme-producing bacteria if they are successfully isolated and screened from aquatic and terrestrial habitats.
背景:天冬酰胺是一种氨基酸,可通过 L-天冬酰胺酶转化为天冬氨酸和氨。某些癌症,如急性淋巴细胞白血病(ALL)和非霍奇金淋巴瘤(NHL),在使用这种酶作为化疗药物时反应良好。本研究的目的是寻找能在海洋荡石沉积物中制造 L-天冬酰胺酶的细菌,并将其用于商业和工业规模的生产。 方法:通过生化和分子检测,确定所有菌株均为 Bacillus niacini spp.。根据营养、生化、PCR 和 16srRNA 测序数据,该菌株属于芽孢杆菌属。 研究结果根据这项研究的结果,烟酸芽孢杆菌有可能创造出一种有助于多种医疗应用的物质。这项研究的结果表明,细菌有能力产生抗菌化合物,并有可能在各种环境中取得成功。 结论如果能成功地从水生和陆生栖息地中分离和筛选出产酶细菌,那么对于有兴趣利用其医疗潜力的研究人员来说,可能会出现许多机会。
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引用次数: 0
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