Olverembatinib, a multikinase inhibitor that modulates lipid metabolism, in advanced succinate dehydrogenase-deficient gastrointestinal stromal tumors: a phase 1b study and translational research. (PubMed, Signal Transduct Target Ther)
Succinate dehydrogenase (SDH)-deficient gastrointestinal stromal tumors (GISTs) are generally resistant to targeted therapy with tyrosine kinase inhibitors (TKIs), such as imatinib, and there are no standard therapeutic options for advanced SDH-deficient GISTs. As a putative mechanism of action, translational research revealed significant lipid enrichment with the overexpression of lipid uptake-related genes and proteins, including CD36, fatty acid binding proteins, fatty acid transport proteins, and lipid metabolites, in SDH-deficient GIST patients, and olverembatinib suppressed lipid uptake and CD36 expression in GIST cells. Olverembatinib also exerts antitumor effects by inhibiting tumorigenic signaling pathways associated with hypoxia, angiogenesis, proliferation, and survival.