KITLG(也称为干细胞因子SCF或steel因子)是一种重要的细胞因子,属于I型细胞因子家族。它通过结合其受体c-KIT(CD117)发挥作用,主要参与造血干细胞、黑色素细胞和生殖细胞的增殖、存活和分化。KITLG在骨髓、皮肤和睾丸等组织中高表达,对维持造血系统的稳态和黑色素生成至关重要。KITLG基因突变可能导致功能丧失,引发严重的遗传性疾病,如白化病(由于黑色素细胞发育缺陷)或骨髓造血功能障碍。KITLG过表达与某些癌症(如胃肠道间质瘤和急性髓系白血病)的发生相关,因为它可能过度激活c-KIT信号通路,促进细胞异常增殖。相反,KITLG表达降低可能导致造血功能受损或皮肤色素异常。KITLG属于KIT配体家族,该家族成员通常通过酪氨酸激酶受体发挥作用,调控细胞生长和分化。KITLG与c-KIT的相互作用还影响肥大细胞和生殖细胞的发育,其信号通路涉及PI3K/AKT和MAPK等关键途径。在临床应用中,重组KITLG被用于促进造血干细胞移植后的骨髓恢复。此外,KITLG的多态性与某些人群的皮肤和头发颜色变异有关,显示了其在人类表型多样性中的作用。
This gene encodes the ligand of the tyrosine-kinase receptor encoded by the KIT locus. This ligand is a pleiotropic factor that acts in utero in germ cell and neural cell development, and hematopoiesis, all believed to reflect a role in cell migration. In adults, it functions pleiotropically, while mostly noted for its continued requirement in hematopoiesis. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]
该基因编码由KIT轨迹编码的酪氨酸激酶受体的配体。这种配位体是,在生殖细胞和神经细胞的发育,和造血宫内充当一种多效因子,所有认为反映在细胞迁移的作用。在成人中,它的功能pleiotropically,而主要是其在造血继续要求注意。已发现该基因编码不同亚型的两个转录变异体。 [由RefSeq的,2008年7月提供]
KITLG基因(以及对应的蛋白质)的细胞分布位置:
KITLG基因的本体(GO)信息:
名称 |
---|
4014 Ras signaling pathway [PATH:hsa04014] |
4015 Rap1 signaling pathway [PATH:hsa04015] |
4151 PI3K-Akt signaling pathway [PATH:hsa04151] |
4060 Cytokine-cytokine receptor interaction [PATH:hsa04060] |
4640 Hematopoietic cell lineage [PATH:hsa04640] |
4916 Melanogenesis [PATH:hsa04916] |
5200 Pathways in cancer [PATH:hsa05200] |
名称 |
---|
Adaptive Immune System |
Constitutive Signaling by Aberrant PI3K in Cancer |
DAP12 interactions |
DAP12 signaling |
Disease |
Diseases of signal transduction |
Downstream signal transduction |
Downstream signaling events of B Cell Receptor (BCR) |
Downstream signaling of activated FGFR1 |
Downstream signaling of activated FGFR2 |
Downstream signaling of activated FGFR3 |
Downstream signaling of activated FGFR4 |
Fc epsilon receptor (FCERI) signaling |
GAB1 signalosome |
Immune System |
Innate Immune System |
NGF signalling via TRKA from the plasma membrane |
PI-3K cascade:FGFR1 |
PI-3K cascade:FGFR2 |
PI-3K cascade:FGFR3 |
PI-3K cascade:FGFR4 |
PI3K events in ERBB2 signaling |
PI3K events in ERBB4 signaling |
PI3K/AKT activation |
PI3K/AKT Signaling in Cancer |
PIP3 activates AKT signaling |
Regulation of KIT signaling |
Role of LAT2/NTAL/LAB on calcium mobilization |
Signal Transduction |
Signaling by EGFR |
Signaling by ERBB2 |
Signaling by ERBB4 |
Signaling by FGFR |
Signaling by FGFR1 |
Signaling by FGFR2 |
Signaling by FGFR3 |
Signaling by FGFR4 |
Signaling by PDGF |
Signaling by SCF-KIT |
Signaling by the B Cell Receptor (BCR) |
Signalling by NGF |
疾病名称 | 关系值 | NofPmids | NofSnps | 来源 |
HYPERPIGMENTATION, FAMILIAL PROGRESSIVE | 0.480271442 | 1 | 3 | BeFree_CLINVAR_CTD_human_ORPHANET_UNIPROT |
Testicular Germ Cell Tumor | 0.243452799 | 7 | 2 | BeFree_GAD_GWASCAT_ORPHANET |
Testicular Neoplasms | 0.127372538 | 4 | 3 | BeFree_CTD_human_GAD |
Neoplasms, Germ Cell and Embryonal | 0.124734064 | 2 | 0 | CTD_human_GAD |
Malignant neoplasm of testis | 0.124538567 | 9 | 2 | BeFree_GAD_GWASCAT |
Testicular malignant germ cell tumor | 0.122985861 | 12 | 2 | BeFree_GWASCAT |
Nasal Polyps | 0.120542884 | 2 | 0 | BeFree_CTD_human |
Adverse reaction to drug | 0.12 | 1 | 0 | CTD_human |
Animal Mammary Neoplasms | 0.12 | 1 | 0 | CTD_human |
Myocardial Ischemia | 0.12 | 1 | 0 | CTD_human |
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