在 condyloma acuminatum 中 PD-L1 的表达和重要性
Yamei Liu1, Weiqi Huang2, Kun Yang1
1Department of Dermatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
概括
人类乳头瘤病毒 (HPV) 感染在生殖器中升级编程死亡配体1 (PD-L1). 这种上调有助于抑制局部T细胞功能,有助于病毒免疫逃逸.
科学领域:
- 免疫学 免疫学 免疫学
- 病毒学 病毒学
- 皮肤病学 皮肤病学
背景情况:
- 编程死亡配体1 (PD-L1) 在病毒感染期间被上调,促进免疫逃避.
- 人类乳头瘤病毒 (HPV) 和condyloma acuminatum中的PD-L1之间的相互作用及其在免疫抑制中的作用仍未得到充分研究.
研究的目的:
- 为了研究状虫中PD-L1的表达.
- 在HPV感染和免疫抑制的背景下探索PD-L1的意义.
主要方法:
- 在 condyloma acuminatum 组织和健康的前皮中评估了 PD-L1 表达.
- 利用lentivirus传染引入HPV11-E7基因进入HaCaT细胞以模拟HPV感染.
- 与Jurkat细胞共培养的HPV11-E7传染的HaCaT细胞,通过流细胞计和CCK-8试验分析Jurkat细胞亡,增殖和细胞周期.
主要成果:
- 在生殖器的角质细胞中,PD-L1表达显著升高.
- HPV11-E7基因转染导致HaCaT细胞中的PD-L1表达增加.
- HPV11-E7 HaCaT细胞诱导了Jurkat细胞亡,抑制了增殖,并导致细胞循环停止,由PD-1/PD-L1途径介导.
结论:
- HPV 感染可以在生殖器甲状腺角质细胞中调高 PD-L1 表达.
- 康迪洛马明中高调节的PD-L1可能有助于抑制局部T细胞介导免疫.
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