CCR6(C-C趋化因子受体6,C-C chemokine receptor 6)是一种G蛋白偶联受体(GPCR),属于趋化因子受体家族,主要表达于免疫细胞如树突细胞、B细胞、T细胞(尤其是Th17细胞)及肠道上皮细胞。其配体为CCL20(又称MIP-3α),两者结合后可激活下游信号通路(如MAPK/ERK和PI3K-AKT),介导免疫细胞向炎症或黏膜组织(如肠道、皮肤)迁移,参与黏膜免疫防御、炎症反应及自身免疫疾病调控。CCR6在维持肠道稳态中起关键作用,通过招募调节性T细胞(Treg)和Th17细胞平衡免疫应答。基因突变可能导致功能异常,如CCR6缺失突变与炎症性肠病(IBD)、银屑病、类风湿性关节炎等自身免疫疾病风险增加相关,而某些突变可能增强CCL20结合能力,加剧炎症。过表达CCR6会促进Th17细胞浸润,加重自身免疫疾病(如多发性硬化)或癌症(如结直肠癌)进展;反之,低表达可能削弱黏膜免疫防御,增加感染风险。CCR6属于趋化因子受体家族(含CCR1-CCR10等成员),该家族共性为通过识别特定趋化因子(小分子信号蛋白)引导细胞迁移,参与免疫监视、炎症和发育。目前针对CCR6的药物(如拮抗剂)正在研发中,用于治疗自身免疫疾病。专业术语解释:G蛋白偶联受体(GPCR)是细胞膜上传递信号的蛋白质;趋化因子(chemokine)是调控细胞定向运动的细胞因子;Th17细胞是一种促炎性T细胞亚群;黏膜免疫指黏膜组织(如肠道)的局部免疫防御系统。
This gene encodes a member of the beta chemokine receptor family, which is predicted to be a seven transmembrane protein similar to G protein-coupled receptors. The gene is preferentially expressed by immature dendritic cells and memory T cells. The ligand of this receptor is macrophage inflammatory protein 3 alpha (MIP-3 alpha). This receptor has been shown to be important for B-lineage maturation and antigen-driven B-cell differentiation, and it may regulate the migration and recruitment of dentritic and T cells during inflammatory and immunological responses. Alternatively spliced transcript variants that encode the same protein have been described for this gene. [provided by RefSeq, Jul 2008]
该基??因编码的测试趋化因子受体家族,其被预测为类似于G蛋白偶联受体具有七次跨膜蛋白的成员。该基因优选被未成熟树突状细胞和记忆T细胞中表达。该受体的配体是巨噬细胞炎性蛋白3α(MIP-3的α)。该受体已被证明是用于B谱系成熟和抗原驱动B细胞分化重要的,并且在炎症和免疫反应,可能调节迁移和树突状细胞和T细胞的募集。编码相同蛋白质可变剪接转录物变体已被用于这个基因说明。 [由RefSeq的,2008年7月提供]
CCR6基因(以及对应的蛋白质)的细胞分布位置:
CCR6基因的本体(GO)信息:
名称 |
---|
4060 Cytokine-cytokine receptor interaction [PATH:hsa04060] |
4062 Chemokine signaling pathway [PATH:hsa04062] |
名称 |
---|
Beta defensins |
Chemokine receptors bind chemokines |
Class A/1 (Rhodopsin-like receptors) |
Defensins |
G alpha (i) signalling events |
GPCR downstream signaling |
GPCR ligand binding |
Immune System |
Innate Immune System |
Peptide ligand-binding receptors |
Signal Transduction |
Signaling by GPCR |
疾病名称 | 关系值 | NofPmids | NofSnps | 来源 |
Rheumatoid Arthritis | 0.252539865 | 16 | 4 | BeFree_CTD_human_GAD_GWASCAT_LHGDN |
Vitiligo | 0.124734064 | 2 | 0 | CTD_human_GAD |
Ulcerative Colitis | 0.120814326 | 4 | 0 | BeFree_CTD_human |
Pneumonia | 0.12 | 1 | 0 | CTD_human |
Hypersensitivity | 0.12 | 1 | 0 | CTD_human |
Transient Ischemic Attack | 0.08 | 1 | 0 | RGD |
Glomerulonephritis, Membranoproliferative | 0.08 | 1 | 0 | RGD |
Neoplasm Metastasis | 0.011973237 | 16 | 0 | BeFree_LHGDN |
Inflammation | 0.008173051 | 3 | 0 | LHGDN |
Crohn Disease | 0.007915422 | 6 | 1 | BeFree_GAD |
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