中國醫學科學院揭示精神壓力調控腫瘤免疫應答的機制
作者:
小柯機器人發布時間:2019/9/10 16:31:26
中國醫學科學院北京協和醫學院蘇州系統醫學研究所馬瑜婷和Guido Kroemer等研究人員合作,揭示了壓力-糖皮質激素- TSC22D3信號軸損害治療引起的抗腫瘤免疫。相關論文2019年9月9日發表在《自然—醫學》上。
研究人員觀察到社交失敗導致小鼠焦慮樣行為,並抑制致治療反應,包括癌物誘導的瘤形成和可移植腫瘤。應激升高的血漿皮質酮和上調糖皮質激素誘導因子Tsc22d3的表達,其阻斷樹突狀細胞(DC)的I型幹擾素(IFN)反應和IFN-γ陽性T細胞的活化。同樣,在血漿皮質醇水平、循環白細胞中TSC22D3表達和癌症患者的消極情緒之間發現了密切的相關性。在鼠模型中,外源性糖皮質激素注射或DC中Tsc22d3的強制表達足以消除對腫瘤的治療控制。施用糖皮質激素受體拮抗劑或DC特異性Tsc22d3缺失逆轉了應激或糖皮質激素補充劑對治療結果的負面影響。總之,這些結果表明,應激誘導的糖皮質激素激增和Tsc22d3上調可以破壞治療引起的抗癌免疫監視。壓力會降低小鼠中各種癌症療法(如化療和免疫療法)的效果;這至少部分是通過腫瘤浸潤的樹突細胞中的Tsc22d3上調介導的,從而導致免疫抑制。
據介紹,長期以來人們一直懷疑心理困擾會影響癌症的發病率和死亡率。目前尚不清楚壓力是否以及如何影響抗癌療法的療效。
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馬瑜婷
馬瑜婷,中國醫學科學院北京協和醫學院蘇州系統醫學研究所研究員,博士生導師(北京協和醫學院)。研究方向:細胞應激對腫瘤細胞免疫原性的調控機制、細胞應激對免疫細胞發育,分化及功能的調控機制 、精神應激對免疫應答的調控作用(據蘇州系統醫學研究所)
附:英文原文
Title: Stress–glucocorticoid–TSC22D3 axis compromises therapy-induced antitumor immunity
Author: Heng Yang, Lin Xia, Jian Chen, Shuqing Zhang, Vincent Martin, Qingqing Li, Shangqing Lin, Jinfeng Chen, Joseph Calmette, Min Lu, Lingyi Fu, Jie Yang, Zhizhong Pan, Kuai Yu, Jingjing He, Eric Morand, Graldine Schlecht-Louf, Roman Krzysiek, Laurence Zitvogel, Boxi Kang, Zeming Zhang, Andrew Leader, Penghui Zhou, Laurence Lanfumey, Minxin Shi, Guido Kroemer, Yuting Ma
Issue&Volume: Volume 25 Issue 9
Abstract: Psychological distress has long been suspected to influence cancer incidence and mortality. It remains largely unknown whether and how stress affects the efficacy of anticancer therapies. We observed that social defeat caused anxiety-like behaviors in mice and dampened therapeutic responses against carcinogen-induced neoplasias and transplantable tumors. Stress elevated plasma corticosterone and upregulated the expression of glucocorticoid-inducible factor Tsc22d3, which blocked type I interferon (IFN) responses in dendritic cell (DC) and IFN-+ T cell activation. Similarly, close correlations were discovered among plasma cortisol levels, TSC22D3 expression in circulating leukocytes and negative mood in patients with cancer. In murine models, exogenous glucocorticoid injection, or enforced expression of Tsc22d3 in DC was sufficient to abolish therapeutic control of tumors. Administration of a glucocorticoid receptor antagonist or DC-specific Tsc22d3 deletion reversed the negative impact of stress or glucocorticoid supplementation on therapeutic outcomes. Altogether, these results indicate that stress-induced glucocorticoid surge and Tsc22d3 upregulation can subvert therapy-induced anticancer immunosurveillance. Stress reduces the effects of various cancer therapies, such as chemotherapy and immunotherapy, in mice; this is mediated, at least partially, through Tsc22d3 upregulation in tumor-infiltrating dendritic cells, which leads to immunosuppression.
DOI: 10.1038/s41591-019-0566-4
Source: https://www.nature.com/articles/s41591-019-0566-4