NPC-15437 hydrochloride is a selective inhibitor of protein kinase C (PKC), primarily investigated for its potential therapeutic applications in medical research. It modulates cellular signaling pathways, particularly those involving protein kinases, making it a candidate for studying inflammatory, immune-related, and cancerous conditions. Researchers are exploring its efficacy in reducing inflammation, inhibiting abnormal cell proliferation such as in cancer, and its potential role in treating autoimmune disorders. Ongoing studies also evaluate its safety and efficacy for developing new therapies targeting diseases with dysregulated cellular mechanisms.