Penetrative biomimetic nanovehicle boosts immunotherapy in triple-negative breast cancer via SOS1 blockade.

ABSTRACT: Immunotherapy of triple-negative breast cancer (TNBC) is significantly hindered by the immunosuppressive tumor microenvironment (TME). Notably, tumor-associated macrophages (TAMs), which constitute the predominant infiltrating immune cell type in TNBC, represent a critical target for "turning off" immunosuppressive TME. Despite numerous ongoing clinical trials, current strategies exhibit limited efficacy in overcoming immunosuppressive TME. Interestingly, regulation of son of sevenless 1 (SOS1), which is overexpressed in TNBC patients, shows promising potential for TAM repolarization. Herein, we developed a biomimetic liposomal platform (CCM/Cil-lipo@TD), which integrates cilengitide (Cil)-functionalized breast cancer cell membranes (CCM) to co-deliver tetrandrine (TET) and low-dose doceta

SUBMITTER: Zhang J 

PROVIDER: S-EPMC12482630 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature