微生物组调节皮肤状细胞癌的免疫疗法反应
Anita Y Voigt1, Andrew Walter2, Timothy H Young2
1The Jackson Laboratory for Genomic Medicine, Farmington, Connecticut, USA.
Experimental dermatology
|June 23, 2023
概括
皮肤微生物组影响非黑色素瘤皮肤癌 (NMSC) 治疗. 用抗生素消耗微生物群减少了接受免疫治疗的小鼠的瘤负担,这表明在NMSC治疗反应中发挥了关键作用.
科学领域:
- 微生物学 微生物学
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
背景情况:
- 肠道微生物群影响癌症的进展和免疫治疗反应,特别是在黑色素瘤中.
- 微生物组在非黑色素瘤皮肤癌 (NMSC) 免疫疗法反应中的作用仍未确定.
- 状细胞癌 (SCC) 与皮肤微生物群密切相关,这表明它可能对治疗结果产生影响.
研究的目的:
- 调查皮肤微生物群对NMSC中的抗PD1免疫疗法反应的影响.
- 为了确定调节微生物组是否会影响SCC模型中的瘤负担.
主要方法:
- 紫外线辐射被用来诱导SKH1无毛小鼠的SCC.
- 用抗生素治疗小鼠以耗尽微生物群,然后进行细菌殖民或继续抗生素治疗.
- 在抗PD1免疫治疗期间,对瘤负担和微生物组动态 (16S rRNA测序) 进行了纵向监测.
主要成果:
- 抗生素诱导的微生物群枯竭显著降低了小鼠的瘤负担.
- 在这个NMSC模型中,微生物组调制影响了对抗PD1免疫疗法的反应.
结论:
- 微生物组在NMSC治疗反应中发挥着功能性作用.
- 准皮肤微生物组可能是NMSC患者接受免疫治疗的新疗法策略.
相关概念视频
Tumor Immunotherapy
575
Immunotherapy is a treatment that boosts or manipulates the immune system to fight diseases, including cancer. For instance, by stimulating an immune response through vaccinations against viruses that cause cancers, like hepatitis B virus and human papillomavirus, these diseases can be prevented. Nonetheless, some cancer cells can avoid the immune system due to their rapid mutation and division. The immune response to many cancers involves three phases: elimination, equilibrium, and escape.
575
The Tumor Microenvironment
6.7K
Every normal cell or tissue is embedded in a complex local environment called stroma, consisting of different cell types, a basal membrane, and blood vessels. As normal cells mutate and develop into cancer cells, their local environment also changes to allow cancer progression. The tumor microenvironment (TME) consists of a complex cellular matrix of stromal cells and the developing tumor. The cross-talk between cancer cells and surrounding stromal cells is critical to disrupt normal tissue...
6.7K
Cytotoxic T Cells-mediated Immune Response
998
Cytotoxic T cells are a vital component of the immune system. They have the remarkable ability to identify and target antigens on infected or abnormal cells. These antigens often originate from intracellular pathogens such as viruses or abnormal proteins cancer cells produce.
Immunological surveillance is the ability of immune cells to monitor and eliminate infected cells with intracellular pathogens, neoplastically transformed cells, and cells with non-self antigens. Cytotoxic T cells and NK...
Immunological surveillance is the ability of immune cells to monitor and eliminate infected cells with intracellular pathogens, neoplastically transformed cells, and cells with non-self antigens. Cytotoxic T cells and NK...
998


