Myers Jacob A, Reilly Shanelle P, Brossay Laurent
Division of Biology and Medicine, Department of Molecular Microbiology and Immunology, Brown University, Providence, RI, USA.
J Exp Med. 2025 Mar 3;222(3). doi: 10.1084/jem.20242253. Epub 2025 Jan 3.
In this issue of JEM, Sparano et al. (https://doi.org/10.1084/jem.20240930) present compelling evidence that salivary gland trNK cells originate from cNK cells and are developmentally distinct from ILC1 cells. Mechanistically, they demonstrate that continuous autocrine TGF-β signaling drives salivary gland tissue residency and works in synergy with IL-15 to enhance Hobit-dependent cytotoxicity.