STAT1

STAT1, also known as signal transducer and activator of transcription 1, is a member of the STAT protein family encoded by a gene located on chromosome 2. Under the influence of cytokines and growth factors, STAT1 is phosphorylated by receptor-associated kinases, forming homodimers or heterodimers that translocate to the nucleus as transcriptional activators to regulate target gene expression. The STAT1-mediated interferon signaling pathway is involved in modulating various biological processes, including immune response, cell proliferation, apoptosis, and differentiation. STAT1 plays a crucial role in maintaining homeostasis and defending against pathogen infections. Importantly, STAT1 also acts as a tumor suppressor by promoting apoptosis and inhibiting cell proliferation, thereby hindering the development of malignancies such as glioma.