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驱动默克尔细胞多瘤病毒瘤基因转录和瘤发生潜力的分子机制的表征
June F Yang1, Wei Liu1, Jianxin You1
1Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America.
PLoS pathogens
|August 30, 2023
概括
默克尔细胞多细胞病毒 (MCPyV) 通过激活瘤基因驱动默克尔细胞癌 (MCC). 向素乙转移酶p300/CBP阻断病毒基因表达和MCC细胞生长,提供了一个新的治疗策略.
科学领域:
- 在瘤学瘤学.
- 病毒学 病毒学
- 分子生物学分子生物学
背景情况:
- 默克尔细胞癌 (MCC) 是一种与默克尔细胞多瘤病毒 (MCPyV) 相关的侵袭性皮肤癌.
- 对于MCC的有效治疗方法有限,因此需要更深入地了解MCPyV在瘤发生中的作用.
- 控制MCPyV瘤基因转录的机制,对于病毒感染和瘤生长至关重要,在很大程度上是未知的.
研究的目的:
- 调查MCPyV早期转录的调节.
- 确定参与MCPyV基因表达和瘤发生的细胞因素.
- 探索针对MCPyV转录的治疗策略.
主要方法:
- 研究了控制MCPyV基因表达的细胞因素.
- 执行了向素乙转移酶 (HATs) 的抑制剂查.
- 分析了NF-κB在MCPyV转录和反循环中的作用.
主要成果:
- 鉴定出p300和CBP作为MCPyV转录的积极调节剂.
- p300/CBP协同激活NF-κB,它与病毒基因组结合,驱动瘤基因表达.
- 小分子抑制剂的p300/CBP HAT活动有效地阻断了MCPyV抗原表达和MCC细胞增殖.
结论:
- 确定了调节MCPyV转录的关键细胞因子,澄清了其传染性热带性和致癌潜力.
- 对p300/CBP HATs的特定抑制剂代表了针对MCPyV驱动的MCC的新治疗策略.
- 了解MCPyV转录调节对于开发有针对性的MCC预防和治疗策略至关重要.
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