Anti-CTLA4 treatment reduces lymphedema risk potentially through a systemic expansion of the FOXP3⁺ T_reg population.

ABSTRACT: Secondary lymphedema is a common sequel of oncologic surgery and presents a global health burden still lacking pharmacological treatment. The infiltration of the lymphedematous extremities with CD4⁺T cells influences lymphedema onset and emerges as a promising therapy target. Here, we show that the modulation of CD4⁺FOXP3⁺CD25⁺regulatory T (T_reg) cells upon anti-CTLA4 treatment protects against lymphedema development in patients with melanoma and in a mouse lymphedema model. A retrospective evaluation of a melanoma patient registry reveals that anti-CTLA4 reduces lymphedema risk; in parallel, anti-CTLA4 reduces edema and improves lymphatic function in a mouse-tail lymphedema model. This protective effect of anti-CTLA4 correlates with a

SUBMITTER: Wolf S 

PROVIDER: S-EPMC11686037 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature