Strategies to Overcome Failures in T-Cell Immunotherapies by Targeting PI3K-δ and -γ.

Strategies to Overcome Failures in T-Cell Immunotherapies by Targeting PI3K-δ and -γ.
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DOI:
10.3389/fimmu.2021.718621
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发表时间:
2021
影响因子:
7.3
通讯作者:
Waller EK
Waller EK
中科院分区:
医学2区
文献类型:
--
作者:
Chandrasekaran S;Funk CR;Kleber T;Paulos CM;Shanmugam M;Waller EK

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PI3K-δ and PI3K-γ are critical regulators of T-cell differentiation, senescence, and metabolism. PI3K-δ and PI3K-γ signaling can contribute to T-cell inhibition via intrinsic mechanisms and regulation of suppressor cell populations, including regulatory T-cells and myeloid derived suppressor cells in the tumor. We examine an exciting new role for using selective inhibitors of the PI3K δ- and γ-isoforms as modulators of T-cell phenotype and function in immunotherapy. Herein we review the current literature on the implications of PI3K-δ and -γ inhibition in T-cell biology, discuss existing challenges in adoptive T-cell therapies and checkpoint blockade inhibitors, and highlight ongoing efforts and future directions to incorporate PI3K-δ and PI3K-γ as synergistic T-cell modulators in immunotherapy.
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