SPINK5

SPINK5 serine protease inhibitor Kazal type 5 is a member of the Kazal protease inhibitor family, which is usually composed of multiple Kazal domains containing approximately 60 amino acid residues and has the function of inhibiting serine protease activity. The main function of SPINK5 is to negatively regulate various serine proteases, which is crucial for maintaining tissue homeostasis, regulating inflammatory responses, and preventing abnormal cell proliferation. In particular, SPINK5 exhibits tumor suppressor activity and can regulate splicing by negatively regulating specific factors such as PSIP1PC4 and SIP1 through binding to RNA, which is involved in the regulation of tumor progression such as non-small cell lung cancer. Although the specific signaling pathways involved in SPINK5 are not clearly listed, its role as a protease inhibitor means that it may be involved in regulating signaling pathways related to inflammatory response, cell proliferation and apoptosis, tissue remodeling and repair. The study of SPINK5 is helpful for developing new cancer treatment strategies, especially in the study of non-small cell lung cancer, which shows its importance.