STAT3(信号转导和转录激活因子3,Signal Transducer and Activator of Transcription 3)是一种重要的转录因子,属于STAT蛋白家族。该家族共有7个成员(STAT1-4、5A、5B、6),它们共同的特点是能够被细胞因子或生长因子激活,通过JAK(Janus激酶)介导的磷酸化形成二聚体并转入细胞核,调控靶基因的转录。STAT3在多种细胞过程中发挥关键作用,包括细胞增殖、存活、分化、免疫调节和炎症反应。其主要作用位点是细胞质,在被激活后转移至细胞核内结合DNA。STAT3的突变可能导致功能异常,例如组成性激活(持续激活)的STAT3与多种癌症(如乳腺癌、肺癌、血液系统恶性肿瘤)密切相关,而功能丧失性突变则可能引起免疫缺陷或发育异常。STAT3的过表达通常促进肿瘤发生,因为它能上调抗凋亡基因(如Bcl-2)和细胞周期调控基因(如Cyclin D1),同时抑制免疫监视。相反,STAT3表达降低可能影响Th17细胞分化,导致免疫失调,并与某些自身免疫性疾病(如多发性硬化)相关。STAT3还参与IL-6家族细胞因子的信号传导,在慢性炎症和癌症微环境中起重要作用。此外,STAT3的活性受多种调控机制影响,包括表观遗传修饰、microRNA调控和蛋白降解途径。在药物开发中,STAT3抑制剂被研究用于癌症治疗,但由于其广泛生理功能,靶向抑制需谨慎以避免严重副作用。
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STAT3基因(以及对应的蛋白质)的细胞分布位置:
STAT3基因的本体(GO)信息:
| 名称 |
|---|
| 4630 Jak-STAT signaling pathway [PATH:hsa04630] |
| 4066 HIF-1 signaling pathway [PATH:hsa04066] |
| 4068 FoxO signaling pathway [PATH:hsa04068] |
| 4550 Signaling pathways regulating pluripotency of stem cells [PATH:hsa04550] |
| 4062 Chemokine signaling pathway [PATH:hsa04062] |
| 4920 Adipocytokine signaling pathway [PATH:hsa04920] |
| 4917 Prolactin signaling pathway [PATH:hsa04917] |
| 5200 Pathways in cancer [PATH:hsa05200] |
| 5206 MicroRNAs in cancer [PATH:hsa05206] |
| 5205 Proteoglycans in cancer [PATH:hsa05205] |
| 5203 Viral carcinogenesis [PATH:hsa05203] |
| 5212 Pancreatic cancer [PATH:hsa05212] |
| 5221 Acute myeloid leukemia [PATH:hsa05221] |
| 5321 Inflammatiory bowel disease (IBD) [PATH:hsa05321] |
| 5162 Measles [PATH:hsa05162] |
| 5161 Hepatitis B [PATH:hsa05161] |
| 5160 Hepatitis C [PATH:hsa05160] |
| 5169 Epstein-Barr virus infection [PATH:hsa05169] |
| 5145 Toxoplasmosis [PATH:hsa05145] |
| 名称 |
|---|
| Cellular responses to stress |
| Cellular Senescence |
| Cytokine Signaling in Immune system |
| Developmental Biology |
| Disease |
| Diseases of signal transduction |
| Downstream signal transduction |
| FGFR1 mutant receptor activation |
| Growth hormone receptor signaling |
| Interleukin-6 signaling |
| NGF signalling via TRKA from the plasma membrane |
| POU5F1 (OCT4), SOX2, NANOG activate genes related to proliferation |
| Senescence-Associated Secretory Phenotype (SASP) |
| Signaling by FGFR in disease |
| Signaling by FGFR1 fusion mutants |
| Signaling by FGFR1 in disease |
| Signaling by FGFR1 mutants |
| Signaling by Interleukins |
| Signaling by Leptin |
| Signaling by PDGF |
| Signaling by SCF-KIT |
| Signalling by NGF |
| Signalling to STAT3 |
| Transcriptional regulation of pluripotent stem cells |
| 疾病名称 | 关系值 | NofPmids | NofSnps | 来源 |
| Hyper-Ige Recurrent Infection Syndrome, Autosomal Dominant | 0.44 | 2 | 0 | CTD_human_MGD_ORPHANET_UNIPROT |
| Arthritis, Experimental | 0.2 | 2 | 0 | CTD_human_RGD |
| Mammary Neoplasms | 0.159759623 | 29 | 0 | BeFree_CTD_human_LHGDN |
| Neoplasm Metastasis | 0.148249818 | 87 | 0 | BeFree_CTD_human_LHGDN |
| Crohn Disease | 0.146189242 | 26 | 4 | BeFree_GAD_GWASCAT |
| Stomach Neoplasms | 0.142609128 | 12 | 0 | BeFree_CTD_human_LHGDN |
| Squamous cell carcinoma | 0.142317823 | 29 | 0 | BeFree_CTD_human_LHGDN |
| Prostatic Neoplasms | 0.138246195 | 14 | 0 | BeFree_CTD_human_LHGDN |
| Job Syndrome | 0.135274147 | 7 | 0 | CTD_human_GAD_LHGDN |
| Ulcerative Colitis | 0.135254284 | 23 | 3 | BeFree_CTD_human_GAD_LHGDN |
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