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<p>The immune system has evolved intricate and sophisticated mechanisms to recognize and eliminate tumours. Among these, T&#xa0;helper 17 (T<sub>H</sub>17) cells seem to have a complex role in tumour immunity. Substantial evidence indicates that T<sub>H</sub>17 cells can impair the ability of immune cells to kill tumours, but growing research suggests that T<sub>H</sub>17 cells may also be crucial for facilitating effective antitumour immune responses. This apparent paradox is likely rooted, at least in part, in the remarkable plasticity of T<sub>H</sub>17 cells, which can adopt a range of effector functions depending on the environmental cues present in distinct tissue niches. Understanding the spectrum of functional adaptations that T<sub>H</sub>17 cells can undergo is especially important in cancer, where tumours exhibit substantial tissue heterogeneity. Here, we examine the context-dependent roles of T<sub>H</sub>17 cells in cancer, with a focus on the environmental signals and regulatory networks that may shape their phenotypes during cancer development and progression. Finally, we discuss how these insights could inform strategies to manipulate T<sub>H</sub>17 cells for the development of next-generation cancer immunotherapies.</p>

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Contextualizing TH17 cells in cancer

  • 期刊论文

  • 发表日期：

    2026年1月6日

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  • Declan Pang,
  • Alice Bertocchi,
  • Fiona Powrie,
  • Mathilde Pohin

摘要

The immune system has evolved intricate and sophisticated mechanisms to recognize and eliminate tumours. Among these, T helper 17 (TH17) cells seem to have a complex role in tumour immunity. Substantial evidence indicates that TH17 cells can impair the ability of immune cells to kill tumours, but growing research suggests that TH17 cells may also be crucial for facilitating effective antitumour immune responses. This apparent paradox is likely rooted, at least in part, in the remarkable plasticity of TH17 cells, which can adopt a range of effector functions depending on the environmental cues present in distinct tissue niches. Understanding the spectrum of functional adaptations that TH17 cells can undergo is especially important in cancer, where tumours exhibit substantial tissue heterogeneity. Here, we examine the context-dependent roles of TH17 cells in cancer, with a focus on the environmental signals and regulatory networks that may shape their phenotypes during cancer development and progression. Finally, we discuss how these insights could inform strategies to manipulate TH17 cells for the development of next-generation cancer immunotherapies.