Bispecific Antibody PD-L1 x CD3 Boosts the Anti-Tumor Potency of the Expanded Vγ2Vδ2 T Cells.
Bispecific Antibody PD-L1 x CD3 Boosts the Anti-Tumor Potency of the Expanded Vγ2Vδ2 T Cells.
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双特异性抗体 PD-L1 x CD3 增强扩增的 Vγ2Vγ2 T 细胞的抗肿瘤效力
DOI:
10.3389/fimmu.2021.654080
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发表时间:
2021
影响因子:
7.3
通讯作者:
Zhou P
中科院分区:
文献类型:
--
作者:
Yang R;Shen S;Gong C;Wang X;Luo F;Luo F;Lei Y;Wang Z;Xu S;Ni Q;Xue Y;Fu Z;Zeng L;Fang L;Yan Y;Zhang J;Gan L;Yi J;Zhou P
Vγ2Vδ2 T cell-based immunotherapy has benefited some patients in clinical trials, but the overall efficacy is low for solid tumor patients. In this study, a bispecific antibody against both PD-L1 and CD3 (PD-L1 x CD3), Y111, could efficiently bridge T cells and PD-L1 expressing tumor cells. The Y111 prompted fresh CD8+ T cell-mediated lysis of H358 cells, but spared this effect on the fresh Vδ2+ T cells enriched from the same donors, which suggested that Y111 could bypass the anti-tumor capacity of the fresh Vγ2Vδ2 T cells. As the adoptive transfer of the expanded Vγ2Vδ2 T cells was approved to be safe and well-tolerated in clinical trials, we hypothesized that the combination of the expanded Vγ2Vδ2 T cells with the Y111 would provide an alternative approach of immunotherapy. Y111 induced the activation of the expanded Vγ2Vδ2 T cells in a dose-dependent fashion in the presence of PD-L1 positive tumor cells. Moreover, Y111 increased the cytotoxicity of the expanded Vγ2Vδ2 T cells against various NSCLC-derived tumor cell lines with the releases of granzyme B, IFNγ, and TNFα in vitro. Meanwhile, the adoptive transferred Vγ2Vδ2 T cells together with the Y111 inhibited the growth of the established xenografts in NPG mice. Taken together, our data suggested a clinical potential for the adoptive transferring the Vγ2Vδ2 T cells with the Y111 to treat PD-L1 positive solid tumors.
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影响因子:
7.3
作者:
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通讯作者:
Meraviglia S
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Mandikian, Danielle;Takahashi, Nene;Boswell, C. Andrew
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Fournie, Jean-Jacques