806-CD40抗体诱导肿瘤微环境调节性T细胞向效应细胞转变 episode artwork

EPISODE · Apr 17, 2026 · 19 MIN

806-CD40抗体诱导肿瘤微环境调节性T细胞向效应细胞转变

from 聊聊Sci

这项研究探讨了激动型抗CD40抗体如何通过改变肿瘤微环境,将免疫抑制性的调节性T细胞(Treg)转化为具有抗肿瘤能力的一型效应细胞(ExTreg)。这种转化过程高度依赖于树突状细胞(DCs)以及IL-12和IFN-γ细胞因子轴的共同作用。实验表明,治疗诱导了Foxp3转录因子的缺失,并使这些细胞获得了类似Th1细胞的特征,例如表达Tbet和IFN-γ。在空间分布上,ExTreg细胞通过CXCL9-CXCR3趋化轴聚集在肿瘤边缘,并表现出极高的抗原反应性。这些发现揭示了肿瘤内Treg细胞的高度可塑性,证明了通过特定免疫疗法可以将原本抑制免疫的细胞重编程为攻击癌症的利器。References: Maltez V I, Arora C, Gribbin K P, et al. Agonistic anti-CD40 antibody treatment converts resident regulatory T cells into activated type 1 effectors within the tumor microenvironment[J]. Immunity, 2026.前往小宇宙评论区与主播互动

Episode metadata supplied by the publisher feed · Published Apr 17, 2026

Embed this episode

Ready to play

806-CD40抗体诱导肿瘤微环境调节性T细胞向效应细胞转变

0:00 19:56

No transcript for this episode yet

We transcribe on demand. Request one and we'll notify you when it's ready — usually under 10 minutes.

No similar episodes found.

Frequently Asked Questions

How long is this episode of 聊聊Sci?

This episode is 19 minutes long.

When was this 聊聊Sci episode published?

This episode was published on April 17, 2026.

Can I download this 聊聊Sci episode?

Yes. Use the download control on the episode player to save the publisher-provided media file.
URL copied to clipboard!