Adiponectin reduces immune checkpoint inhibitor-induced inflammation without blocking anti-tumor immunity
- PMID: 39933899
- DOI: 10.1016/j.ccell.2025.01.004
Adiponectin reduces immune checkpoint inhibitor-induced inflammation without blocking anti-tumor immunity
Abstract
Immune-related adverse events (irAEs) in cancer patients receiving immune checkpoint inhibitors (ICIs) cause morbidity and necessitate cessation of treatment. Comparing irAE treatments, we find that anti-tumor immunity is preserved in mice after extracorporeal photopheresis (ECP) but reduced with glucocorticosteroids, TNFα blockade, and α4β7-integrin inhibition. Local adiponectin production elicits a tissue-specific effect by reducing pro-inflammatory T cell frequencies in the colon while sparing tumor-specific T cell development. A prospective phase-1b/2 trial (EudraCT-No.2021-002073-26) with 14 patients reveals low ECP-related toxicity. Overall response rate for all irAEs is 92% (95% confidence interval [CI]: 63.97%-99.81%); colitis-specific complete remission rate is 100% (95% CI: 63.06%-100%). Glucocorticosteroid dosages could be reduced for all patients after ECP therapy. The ECP-adiponectin axis reduces intestinal tissue-resident memory T cell activation and CD4+IFN-γ+ T cells in patients with ICI-induced colitis without evidence of loss of anti-tumor immunity. In conclusion, we identify adiponectin as an immunomodulatory molecule that controls ICI-induced irAEs without blocking anti-tumor immunity.
Keywords: adiponectin; anti-tumor immunity; arginase-1; cancer immunotherapy; colitis; extracorporeal photopheresis; immune checkpoint inhibition; immune-related adverse events; immunomodulation; immunosuppression.
Copyright © 2025 The Author(s). Published by Elsevier Inc. All rights reserved.
Conflict of interest statement
Declaration of interests P.A. received honoraria from Jazz Pharmaceuticals and Novartis; travel support from Jazz Pharmaceuticals and Takeda. C.G. serves as consultant, advisory board member and/or speaker and received honoraria from BioNTech, BMS, Delcath, Immatics, Immunocore, Iovance, MSD, Novartis, Pierre Fabre, Regeneron, Sanofi, SkylineDX, SUN Pharma, and Sysmex; travel support from BMS, Pierre Fabre, and Sun Pharma; C.G. has unpaid board roles with DeCOG, the German Skin Cancer Foundation, and the Roggenbuck Foundation; and is the co-founder and shareholder of Dermagnostix and Dermagnostix R&D. S.L. received a research grant from BMS and advisory board/speaker invitation from AstraZeneca, Eli Lily, Roche, and Takeda. D.S. served as a consultant, advisory board and/or speaker and received honoraria from Amgen, Array, BMS, Helsinn, Immunocore, InflarX, MSD, Merck-Serono, Nektar, Novartis, OncoSec, Pfizer, Philogen, Regeneron, Replimune, Sandoz, Sanofi, Sunpharma, and 4SC; travel support from BMS, MSD, Merck-Serono, Nektar, Novartis, Pierre Fabre, Sandoz, Sanofi, and 4SC. F.M. served as a consultant and/or received honoraria from Novartis, Roche, BMS, MSD, Pierre Fabre, Sanofi Genzyme, and Sunpharma; travel support from Novartis, Sunpharma, and Bristol-Myers Squibb. S. Ugurel received research support from BMS and Merck Serono, speakers/advisory honoraria from BMS, MSD, Merck Serono, and Novartis; travel support from BMS, MSD, and Pierre Fabre. S.G. has received honoraria from Jazz Pharmaceuticals. C.F.-L. received honoraria and travel support from Therakos/Mallinckrodt. J.-M.P. served as a consultant and/or has received honoraria from BMS, Novartis, and Sanofi; travel support from BMS, Novartis, Pierre Fabre, and Therakos. R.Z. has received honoraria from Novartis, Incyte, Sanofi, and Mallinckrodt. All honoraria and support were outside this work. All other authors declare no conflict of interest. The clinical study was financially supported by Mallinckrodt Pharmaceuticals as an external collaborative research grant.
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