Endogenous T cell responses to antigens expressed in lung adenocarcinomas delay malignant tumor progression.

Endogenous T cell responses to antigens expressed in lung adenocarcinomas delay malignant tumor progression.
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DOI:
10.1016/j.ccr.2010.11.011
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发表时间:
2011-01-18
期刊:
影响因子:
50.3
通讯作者:
Jacks T
Jacks T
中科院分区:
医学1区
文献类型:
--
作者:
DuPage M;Cheung AF;Mazumdar C;Winslow MM;Bronson R;Schmidt LM;Crowley D;Chen J;Jacks T

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Neoantigens derived from somatic mutations in tumors may provide a critical link between the adaptive immune system and cancer. Here we describe a system to introduce exogenous antigens into genetically engineered mouse lung cancers to mimic tumor neoantigens. We show that endogenous T cells respond to and infiltrate tumors, significantly delaying malignant progression. Despite continued antigen expression, T cell infiltration does not persist and tumors ultimately escape immune attack. Transplantation of cell lines derived from these lung tumors or prophylactic vaccination against the autochthonous tumors, however, results in rapid tumor eradication or selection of tumors that lose antigen expression. These results provide insight into the dynamic nature of the immune response to naturally arising tumors.
募集高危险性CD8(+)T细胞的潜在池募集到抗肿瘤免疫反应中。
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