Nine lives for TH9s?

Zou, Weiping; Restifo, Nicholas P · Nat Med · 2012

editorial · Level V

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Abstract

There is currently much interest in dissecting the mechanisms of tumor immunity. A new study shows that a subset of CD4<sup>+</sup> T cells that produce the cytokine interleukin-9 (IL-9) mediate inhibition of melanoma growth in mice and that analogous IL-9-producing T cells are present in human skin (pages 1248–1253). Could such cells be manipulated to develop new therapeutic strategies for melanoma?

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