TGR5 deficiency activates antitumor immunity in non-small cell lung cancer via restraining M2 macrophage polarization.

TGR5 deficiency activates antitumor immunity in non-small cell lung cancer via restraining M2 macrophage polarization.
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TGR5缺陷通过抑制M2巨噬细胞极化激活非小细胞肺癌的抗肿瘤免疫

DOI:
10.1016/j.apsb.2021.07.011
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发表时间:
2022-03
期刊:
Acta pharmaceutica Sinica. B
影响因子:
--
通讯作者:
Jiang H
Jiang H
中科院分区:
其他
文献类型:
--
作者:
Zhao L;Zhang H;Liu X;Xue S;Chen D;Zou J;Jiang H

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胆汁酸响应性G蛋白偶联受体TGR 5在单核细胞和巨噬细胞中表达,在调节炎症反应中起关键作用。我们的前期工作已经显示了其在促进非小细胞肺癌(NSCLC)进展中的作用,但其机制尚不清楚。在这里,使用TGR 5敲除小鼠,我们表明TGR 5是肿瘤相关巨噬细胞(TAM)的M2极化所必需的,并通过涉及TAM介导的CD 8 + T细胞抑制来抑制NSCLC中的抗肿瘤免疫。从机制上讲,我们证明了TGR 5通过激活cAMP-STAT 3/STAT 6信号传导促进TAM转化为促肿瘤发生的M2样表型。cAMP产生的诱导恢复TGR 5缺陷型巨噬细胞中的M2样表型。在来自人类患者的NSCLC组织中,TGR 5的表达与TAM的浸润相关。TGR 5共表达和TAM高浸润与NSCLC患者的预后和总生存期相关。总之,这项研究提供了TGR 5在NSCLC中的促肿瘤功能的分子机制,突出了其作为NSCLC中以TAM为中心的免疫治疗靶点的潜力。TGR 5通过参与TAM介导的肿瘤生长和CD 8 + T细胞抑制在非小细胞肺癌中诱导巨噬细胞免疫抑制表型和抑制抗肿瘤免疫应答中起关键作用。
The bile acid-responsive G-protein-coupled receptor TGR5 is expressed in monocytes and macrophages, and plays a critical role in regulating inflammatory response. Our previous work has shown its role in promoting the progression of non-small cell lung cancer (NSCLC), yet the mechanism remains unclear. Here, using Tgr5-knockout mice, we show that TGR5 is required for M2 polarization of tumor-associated macrophages (TAMs) and suppresses antitumor immunity in NSCLC via involving TAMs-mediated CD8+ T cell suppression. Mechanistically, we demonstrate that TGR5 promotes TAMs into protumorigenic M2-like phenotypes via activating cAMP-STAT3/STAT6 signaling. Induction of cAMP production restores M2-like phenotypes in TGR5-deficient macrophages. In NSCLC tissues from human patients, the expression of TGR5 is associated with the infiltration of TAMs. The co-expression of TGR5 and high TAMs infiltration are associated with the prognosis and overall survival of NSCLC patients. Together, this study provides molecular mechanisms for the protumor function of TGR5 in NSCLC, highlighting its potential as a target for TAMs-centric immunotherapy in NSCLC. TGR5 plays a key role in eliciting macrophage immunosuppressive phenotype and inhibiting antitumor immune response via involving TAMs-mediated tumor growth and CD8+ T cell suppression in non-small cell lung cancer.
DOI: 10.1038/nrclinonc.2016.217
发表时间: 2017-07
期刊: Nature reviews. Clinical oncology
影响因子: --
作者:
Mantovani A;Marchesi F;Malesci A;Laghi L;Allavena P
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非小细胞肺癌中膜胆汁酸受体 TGR5 通过激活 JAK2/STAT3 信号通路驱动细胞生长和迁移
DOI: 10.1016/j.canlet.2017.10.017
发表时间: 2018-01-01
期刊: CANCER LETTERS
影响因子: 9.7
作者:
Liu, Xueqing;Chen, Bi;Jiang, Handong
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发表时间: 2016-10
期刊: Oncology reports
影响因子: 4.2
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肿瘤相关巨噬细胞的细胞和分子起源。
DOI: 10.1126/science.1252510
发表时间: 2014-05-23
期刊: Science (New York, N.Y.)
影响因子: --
作者:
Franklin RA;Liao W;Sarkar A;Kim MV;Bivona MR;Liu K;Pamer EG;Li MO
通讯作者: Li MO
DOI: 10.1371/journal.pone.0100883
发表时间: 2014
期刊: PloS one
影响因子: 3.7
作者:
Lewis ND;Patnaude LA;Pelletier J;Souza DJ;Lukas SM;King FJ;Hill JD;Stefanopoulos DE;Ryan K;Desai S;Skow D;Kauschke SG;Broermann A;Kuzmich D;Harcken C;Hickey ER;Modis LK
通讯作者: Modis LK