克隆和B型肝炎表面抗原基因在Escherichia coli中的周等离子体溶解表达
1Department of Microbiology, Hazara University, Garden Campus, Mansehra, Pakistan. iwockd@gmail.com.
European review for medical and pharmacological sciences
|January 2, 2024
概括
研究人员成功地克隆并表达了B型肝炎表面抗原 (HBsAg) 基因在大肠杆菌 (E. coli) 中. 这一进展为开发本地乙型肝炎病毒 (HBV) 疗法和疫苗铺平了道路.
科学领域:
- 分子生物学分子生物学
- 病毒学 病毒学
- 生物技术是生物技术.
背景情况:
- 乙型肝炎病毒 (HBV) 感染构成了重大的公共卫生挑战,特别是在像巴基斯坦这样的社区.
- 开发可访问和有效的局部治疗方法对于控制HBV至关重要.
- 重组DNA技术为生产治疗和疫苗开发的病毒抗原提供了一个有希望的途径.
研究的目的:
- 在大肠杆菌 (E. coli) 中克隆和表达B型肝炎表面抗原 (HBsAg) 基因.
- 建立一个生产HBsAg的平台,用于针对HBV感染的潜在局部治疗开发.
- 为控制巴基斯坦社区的乙型肝炎作出贡献.
主要方法:
- 从B型肝炎患者的血清样本中提取基因组DNA.
- 使用实时和嵌套的聚合酶链反应 (PCR) 来放大HBsAg基因.
- 将其克隆到pET20b载体中,转化为大肠杆菌BL21 (DE3),并使用异烯β-D-1-thiogalactopyranoside (IPTG) 进行诱导.
主要成果:
- 成功测序HBsAg基因,显示98%的同源性与全球HBV序列和提交到GenBank.
- 使用银染色,库马西染色,西部斑点和点斑点分析确认HBsAg蛋白表达.
- 使用特定的原始体验基因大小的验证.
结论:
- 在大肠杆菌中成功克隆和表达了HBsAg基因.
- 产生的蛋白质适合进一步开发为局部重组DNA疫苗.
- 这项研究支持在当地社区建立预防乙型肝炎的预防策略.
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