Next-generation immunotherapy for solid tumors: combination immunotherapy with crosstalk blockade of TGFβ and PD-1/PD-L1.

Next-generation immunotherapy for solid tumors: combination immunotherapy with crosstalk blockade of TGFβ and PD-1/PD-L1.
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实体肿瘤的下一代免疫疗法:结合串扰阻断转化生长因子β和PD-1/PD-L1的免疫疗法。

DOI:
10.1080/13543784.2022.2152323
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发表时间:
2022-11
影响因子:
6.1
通讯作者:
Xiong, Yuquan
Xiong, Yuquan
中科院分区:
医学2区
文献类型:
--
作者:
Quach, Hue Tu;Hou, Zhaohua;Bellis, Rebecca Y. Y.;Saini, Jasmeen K. K.;Amador-Molina, Alfredo;Adusumilli, Prasad S. S.;Xiong, Yuquan

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在实体瘤免疫治疗中,不到 20% 的患者对抗程序性细胞死亡 1 (PD-1)/程序性细胞死亡 1 配体 1 (PD-L1) 药物有反应。转化生长因子 β (TGFβ) 在多种免疫中的作用已得到充分证实。然而,TGFβ 的全身阻断与毒性相关。越来越多的证据表明 TGFβ 和 PD-1/PD-L1 通路之间存在串扰作用。我们重点关注 TGFβ 和 PD-1/PD-L1 信号通路的串扰以及 TGFβ 在免疫检查点阻断抵抗中的决定性作用。我们提供了抗 TGFβ 和抗 PD-1/PD-L1 联合疗法治疗实体瘤的基本原理,并讨论了临床前和临床研究中双重阻断疗法的现状。实体瘤中肿瘤微环境的异质性使双阻断剂研究的患者选择、治疗方案以及反应和毒性评估变得复杂。然而,单药研究的临床知识为转化双重阻断疗法提供了基础设施。 TGFβ 和 PD-1/PD-L1 双重阻断可增强 T 细胞对肿瘤的浸润,这是成功免疫治疗的首要条件。一种双功能融合蛋白特异性靶向肿瘤微环境中的 TGFβ,避免全身毒性,并防止 PD-1+ 细胞毒性细胞与 PD-L1+ 肿瘤细胞相互作用。
In solid tumor immunotherapy, less than 20% of patients respond to anti-programmed cell death 1 (PD-1)/ programmed cell death 1 ligand 1 (PD-L1) agents. The role of transforming growth factor β (TGFβ) in diverse immunity is well-established; however, systemic blockade of TGFβ is associated with toxicity. Accumulating evidence suggests the role of crosstalk between TGFβ and PD-1/PD-L1 pathways. We focus on TGFβ and PD-1/PD-L1 signaling pathway crosstalk and the determinant role of TGFβ in the resistance of immune checkpoint blockade. We provide the rationale for combination anti-TGFβ and anti-PD-1/PD-L1 therapies for solid tumors and discuss the current status of dual blockade therapy in preclinical and clinical studies. The heterogeneity of tumor microenvironment across solid tumors complicates patient selection, treatment regimens, and response and toxicity assessment for investigation of dual blockade agents. However, clinical knowledge from single-agent studies provides infrastructure to translate dual blockade therapies. Dual TGFβ and PD-1/PD-L1 blockade results in enhanced T-cell infiltration into tumors, a primary requisite for successful immunotherapy. A bifunctional fusion protein specifically targets TGFβ in the tumor microenvironment, avoiding systemic toxicity, and prevents interaction of PD-1+ cytotoxic cells with PD-L1+ tumor cells.
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