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Treg depletion followed by intracerebral CpG-ODN injection induce brain tumor rejection

机译:Treg耗竭后脑内CpG-ODN注射诱导脑肿瘤排斥

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Using brain lymphoma model, we demonstrate that immunotherapy combining Treg depletion (using anti-CD25 mAb PC61) followed by intracranial CpG-ODN administration induced tumor rejection in all treated mice and led to the establishment of a memory antitumor immune response in 60% of them. This protective effect was associated with a recruitment of NK cells and, to a lesser extent, of dendritic cells, B cells and T lymphocytes. NK cell depletion abolished the protective effect of the treatment, confirming a major role of NK cells in brain tumor elimination. Each treatment used alone failed to protect brain tumor bearing mice, revealing the therapeutic benefit of combining Treg depletion and local CpG-ODN injection.
机译:使用脑淋巴瘤模型,我们证明免疫疗法联合Treg耗竭(使用抗CD25 mAb PC61),然后经颅内CpG-ODN给药诱导了所有治疗小鼠的肿瘤排斥反应,并在其中60%的小鼠中建立了记忆抗肿瘤免疫应答。这种保护作用与NK细胞的募集有关,在较小程度上与树突状细胞,B细胞和T淋巴细胞的募集有关。 NK细胞耗竭消除了该治疗的保护作用,证实了NK细胞在消除脑肿瘤中的主要作用。每种单独使用的治疗方法均无法保护携带脑瘤的小鼠,从而揭示了Treg耗竭与局部CpG-ODN注射相结合的治疗益处。

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