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.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 269-291.e19 |
| Journal | Cancer Cell |
| Volume | 43 |
| Issue number | 2 |
| DOIs | |
| State | Published - Feb 10 2025 |
Bibliographical note
Publisher Copyright:© 2025 The Author(s)
Keywords
- adiponectin
- anti-tumor immunity
- arginase-1
- cancer immunotherapy
- colitis
- extracorporeal photopheresis
- immune checkpoint inhibition
- immune-related adverse events
- immunomodulation
- immunosuppression
PubMed: MeSH publication types
- Journal Article
- Clinical Trial, Phase I
- Clinical Trial, Phase II