基因组不稳定性在人类乳头瘤病毒转换的桃体角质细胞中病毒整合之前
Kimberly Chan1,2, Christopher Tseng1,2, Emily Milarachi1,2
1Department of Otolaryngology, Penn State College of Medicine, Hershey, Pennsylvania.
Molecular cancer research : MCR
|October 30, 2024
概括
人类乳头瘤病毒阳性口喉状状细胞癌 (HPV+OPSCC) 的基因组不稳定性可能促进病毒融合,而不是相反. 综合性HPV DNA与相比增加瘤的形成有关,与病例性HPV DNA相比.
科学领域:
- 在瘤学瘤学.
- 病毒学 病毒学
- 遗传学 是一个遗传学.
背景情况:
- 口腔状细胞癌 (OPSCC) 经常与人乳头瘤病毒 (HPV) 相关,HPV阳性 (HPV+) 瘤通常有更好的预后.
- 一小部分HPV+OPSCC患者经历了不良结果,这表明了潜在的生物学差异.
- 之前的研究表明,与HPV DNA集成的瘤相比,HPV DNA集成的瘤的基因组不稳定性更高.
研究的目的:
- 研究人类乳头瘤病毒 (HPV) 整合和口腔状细胞癌 (OPSCC) 的基因组不稳定性之间的因果关系.
- 为了确定病毒集成是否在基因组不稳定之前或之后.
- 为了比较细胞系的瘤发生性与集成与插曲性HPVDNA.
主要方法:
- 培养和传递了HPV16转化的人类桃体氨基细胞细胞系.
- 基因组分析,包括全基因组测序和光学基因组映射,定期进行.
- 细胞系通过在裸体小鼠体内进行皮下注射来测试瘤性.
主要成果:
- 病毒集成发生在6个HPV感染细胞系中的5个中,而其中一个保留了病例性HPVDNA.
- 在早期段落中观察到基因组不稳定性,但在大多数线条中病毒集成后基本停止.
- 带有集成HPV DNA的细胞系在小鼠中诱导了瘤,而带有插曲性HPV DNA的细胞系没有.
结论:
- 在HPV+OPSCC中,基因组不稳定似乎促进了病毒融合,而不是病毒融合的结果.
- 综合的HPV DNA与相比增加的瘤发生性有关,与病例性HPV DNA相比.
- 这些发现对理解OPSCC进展和患者结果有影响.
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