Jing Xuan Lim, Tegan McTaggart, Seol Kyoung Jung, Katie J. Smith, Gillian Hulme, Stephanie Laba, Yun Qi Ng, Amelia Williams, Rafiqul Hussain, Jonathan Coxhead, Ioana Cosgarea, Catherine Arden, Jérémie Nsengimana, Penny Lovat, Graham Anderson, Hong-Wei Sun, Arian Laurence, Shoba Amarnath
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PD-1 receptor deficiency enhances CD30+ Treg cell function in melanoma
Regulatory T (Treg) cells are vital for immune suppression. The role of the coreceptor programmed cell death 1 receptor (PD-1) in Treg cell function is controversial. Here, we demonstrate that PD-1 deficiency enhances the function of Treg cells through expression of a compensatory network of coinhibitory receptors. CD30 has a central role within this network, driving the Treg cell suppressive function within the tumor microenvironment. Mechanistically, PD-1 deficiency enhances STAT5 signaling in Treg cells, which induces CD30 expression. These data indicate a role for PD-1 as a checkpoint that negatively controls CD30 expression in Treg cells to limit their suppressive function. Understanding the functional changes that PD-1 has on Treg cells might enable combination therapies with better treatment outcomes in cancer.
期刊介绍：
Nature Immunology is a monthly journal that publishes the highest quality research in all areas of immunology. The editorial decisions are made by a team of full-time professional editors. The journal prioritizes work that provides translational and/or fundamental insight into the workings of the immune system. It covers a wide range of topics including innate immunity and inflammation, development, immune receptors, signaling and apoptosis, antigen presentation, gene regulation and recombination, cellular and systemic immunity, vaccines, immune tolerance, autoimmunity, tumor immunology, and microbial immunopathology. In addition to publishing significant original research, Nature Immunology also includes comments, News and Views, research highlights, matters arising from readers, and reviews of the literature. The journal serves as a major conduit of top-quality information for the immunology community.
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