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Marcel Arias-Badia¹, Chien-Chun Steven Pai¹, PeiXi Chen¹

¹Division of Hematology/Oncology, Department of Medicine, University of California, San Francisco, San Francisco, CA, United States.

Frontiers in immunology

|September 2, 2024

概括

电子烟的成分,如PG/VG和尼古丁,可能通过抑制免疫系统来促进瘤生长和转移,从而增加癌症风险.

科学领域:

在瘤学瘤学.
免疫学免疫学免疫学
毒理学毒理学毒理学

背景情况:

电子烟 (e-cigarettes) 由于其非致癌的液体成分,被认为具有较低的癌症风险.
临床前模型用于调查电子烟成分的致癌潜力.

研究的目的:

分析烯糖醇/植物甘油 (PG/VG) 和尼古丁对瘤发展的影响.
研究电子烟成分对瘤攻击性,转移和瘤微环境的影响.

主要方法:

进行了体外迁移试验,以评估瘤细胞迁移.
在体内临床前模型被用于评估PG/VG和尼古丁暴露后的瘤发育和免疫反应.
使用流细胞计和免疫组织化学分析免疫细胞透和免疫检查点表达.

主要成果:

PG/VG促进了瘤细胞的迁移,并导致更具侵略性,转移性和免疫抑制性瘤,尼古丁加剧了这些效应.
暴露于PG/VG和尼古丁增加了对瘤发展的敏感性,其特征是有炎症性巨细胞 (IL-6,TNFα).
电子烟暴露提高了T细胞的免疫检查点 (CTLA4,PD-1),而抗CTLA4治疗减少了转移.

结论:

电子烟的主要液体成分 (PG/VG和尼古丁) 可以促进瘤的发展和转移.
电子烟使用可能会诱导免疫抑制,导致瘤微环境更具侵略性.
针对CTLA4等免疫检查点显示出治疗电子烟相关瘤进展的潜力.

关键词:

电子烟是一种电子烟.免疫检查点封锁封锁免疫抑制是一种免疫抑制.转移转移转移转移整个身体的暴露.

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