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季节性流感疫苗在瘤微环境中差异激活和调节类似收费的受体表达

Kajal H Gupta^1,2, Eileena F Giurini¹, Andrew Zloza^3,4

¹Division of Surgical Oncology, Department of Surgery, Rush University Medical Center, Chicago, IL, United States.

Frontiers in oncology

|March 13, 2024

概括

没有辅助剂的流感疫苗通过托尔样受体7 (TLR7) 激活来降低瘤生长. 辅助疫苗刺激不同的TLR,影响抗瘤免疫力和疫苗反应.

科学领域:

免疫学免疫学免疫学
在瘤学瘤学.
疫苗学疫苗学疫苗学

背景情况:

收费类受体 (TLRs) 在癌症发育和抗瘤免疫中起着双重作用.
TLRs参与了对流感病毒感染的天生的免疫反应.
之前的研究表明,未添加辅助剂的流感疫苗调节TLR7,诱导黑色素瘤的抗瘤反应.

研究的目的:

通过未添加剂的流感疫苗研究TLRs对瘤生长减少的贡献.
确定非辅助型与辅助型流感疫苗对TLR刺激的差异.
阐明TLR7在未添加辅助剂的疫苗抗瘤作用中的作用.

主要方法:

在小鼠黑色素瘤模型中,内注射未添加剂和添加剂的流感疫苗.
评估了对免疫细胞的TLR表达和激活.
利用TLR7缺乏的小鼠来评估TLR7在瘤反应中的作用.

主要成果:

没有辅助的疫苗刺激了TLR3和TLR7;辅助的疫苗刺激了TLR4和TLR9.
在TLR7缺乏的小鼠中,减少瘤生长和改善未添加剂疫苗的存活率有所减少.
这两种疫苗都调节了TLR表达在先天性和适应性免疫细胞上.

结论:

对于未添加辅助剂的流感疫苗的抗瘤疗效来说,TLR7是至关重要的.
疫苗配方的差异性TLR刺激会影响抗瘤免疫反应.
这些发现增强了对疫苗介导瘤结果的机制性理解.

关键词:

癌症疫苗疫苗癌症疫苗流感疫苗流感疫苗流感疫苗这是先天免疫力.收费类似受体 (TLR) 的收费.瘤微环境 (TME) 是指瘤的微环境.

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