Elisa Matas-Rico, Elselien Frijlink, Irene van der Haar Àvila, Apostolos Menegakis, Maaike van Zon, Andrew J Morris, Jan Koster, Fernando Salgado-Polo, Sander de Kivit, Telma Lança, Antonio Mazzocca, Zoë Johnson, John Haanen, Ton N Schumacher, Anastassis Perrakis, Inge Verbrugge, Joost H van den Berg, Jannie Borst, Wouter H Moolenaar
Autotaxin (ATX; ENPP2) produces lysophosphatidic acid (LPA) that regulates multiple biological functions via cognate G protein-coupled receptors LPAR1-6. ATX/LPA promotes tumor cell migration and metastasis via LPAR1 and T cell motility via LPAR2, yet its actions in the tumor immune microenvironment remain unclear. Here, we show that ATX secreted by melanoma cells is chemorepulsive for tumor-infiltrating lymphocytes (TILs) and circulating CD8+ T cells ex vivo, with ATX functioning as an LPA-producing chaperone...
November 16, 2021: Cell Reports