医学分子生物学杂志 ›› 2025, Vol. 22 ›› Issue (4): 399-402.doi: 10.3870/j.issn.1672-8009.2025.04.015

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高危人乳头瘤病毒 L1、 L2 蛋白对宫颈癌自噬的影响 #br#

  

  1. 山西医科大学第二医院妇产科 太原市, 030001
  • 出版日期:2025-07-31 发布日期:2025-07-18
  • 基金资助:
    山西省自然基金面上项目( No. 20210302123271);山西省重点研发计划(No. 201903D421065)

Effect of High-risk Human Papillomavirus L1 and L2 Proteins on Autophagy in Cervical Cancer #br#

  1. Department of Obstetrics and Gynecology, the Second Hospital of Shanxi Medical University, Taiyuan, 030001, China
  • Online:2025-07-31 Published:2025-07-18

摘要: 自噬是细胞用来维持体内平衡的一种自我消耗机制, 部分研究提示, 高危型人乳头瘤病毒(high-risk human papillomavirus, HR-HPV) 通过作用于宿主细胞自噬促进宫颈癌的发生。 HR-HPV 具有将病毒基因组整合到宿主 DNA 中进而感染宿主细胞的能力, HR-HPV L1、 L2 蛋白协助病毒进入细胞, 并通过与靶细胞膜上的细胞表面受体相互作用激活 PI3K / AKT / mTOR 信号通路以抑制自噬过程, 使得病毒颗粒不间断地向细胞内运输。 HR-HPV L1、 L2 蛋白可在细胞质中表达并转移到细胞核, 通过影响细胞自噬协助病毒逃避免疫监视虽然目前已有针对 HR-HPV L1、 L2 蛋白的 HPV 预防性疫苗, 但明确 HR-HPV L1、 L2 蛋白对宫颈癌自噬具体的调节方式, 或能为宫颈癌的防治拓展新思路

关键词:

高危人乳头瘤病毒, L1 蛋白, L2 蛋白, 宫颈癌, 自噬

Abstract: Autophagy is a self-consumption mechanism used by cells to maintain homeostasis inthe body. Some findings suggest that high-risk human papillomavirus (HR-HPV) promotes cervical carcinogenesis by acting on host cell autophagy. HR-HPV can integrate the viral genome into the host DNA, which in turn infects the host cell. HR-HPV L1 and L2 proteins assist viral entry into cells and inhibit the autophagic process by activating the PI3K / AKT / mTOR signalling pathway through interactions with cell-surface receptors on the membrane of the target cell, resulting in the uninterrupted transport of viral particles into the cell. At the end stage of viral infection, HR-HPV L1 and L2 proteins are expressed in the cytoplasm and translocate to the nucleus, assisting viral evasion of immune surveillance by affecting autophagy. Although HPV prophylactic vaccines against HR-HPV L1 and L2 proteins are available, clarifying the specific regulation of autophagy in cervical cancer by HR-HPV L1 and L2 proteins may expand new ideas for cervical cancer prevention and treatment.

Key words:

high-risk human papillomavirus, L1 protein, L2 protein, cervical cancer, autophagy

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