CYSLTR1(半胱氨酰白三烯受体1,Cysteinyl Leukotriene Receptor 1)属于G蛋白偶联受体(GPCR)家族,主要参与炎症和免疫反应调控。其表达产物是一种膜蛋白,通过与半胱氨酰白三烯(CysLTs,如LTC4、LTD4和LTE4)结合激活下游信号通路,导致平滑肌收缩、血管通透性增加及炎症细胞聚集。该基因主要作用位点为呼吸道、血管和免疫细胞(如嗜酸性粒细胞、肥大细胞)。突变可能影响受体功能,导致异常炎症反应,与哮喘、过敏性鼻炎、慢性阻塞性肺病(COPD)和心血管疾病密切相关。例如,某些突变会增强受体活性,加剧气道高反应性。CYSLTR1属于白三烯受体基因家族(包括CYSLTR1和CYSLTR2),家族共性是通过结合白三烯类脂质介质调控炎症和过敏反应。过表达CYSLTR1会增强炎症信号传导,加重气道收缩和组织水肿,可能促进哮喘发作;而降低表达(如使用受体拮抗剂孟鲁司特)可缓解症状。此外,CYSLTR1与TNF-α、IL-4等细胞因子存在交叉调控,其表达异常可能影响其他炎症相关基因网络。在肿瘤中,CYSLTR1过表达还被报道与某些癌症(如结肠癌)的进展相关,可能通过促进血管生成和转移。
This gene encodes a member of the G-protein coupled receptor 1 family. The encoded protein is a receptor for cysteinyl leukotrienes, and is involved in mediating bronchoconstriction via activation of a phosphatidylinositol-calcium second messenger system. Activation of the encoded receptor results in contraction and proliferation of bronchial smooth muscle cells, eosinophil migration, and damage to the mucus layer in the lung. Upregulation of this gene is associated with asthma and dysregulation may also be implicated in cancer. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2013]
该基因编码的G蛋白偶联受体1家族的一个成员。所编码的蛋白质是用于半胱氨酰白三烯的受体,并参与通过磷脂酰肌醇 - 钙第二信使系统的激活介导的支气管收缩。所编码的受体导致的收缩和支气管平滑肌细胞的增殖,嗜酸性粒细胞迁移和损坏在肺粘液层的激活。这个基因的上调与哮喘和失调相关,也可以与癌症有关。选择性剪接结果在多个抄本变形。 [由RefSeq的,2013年8月提供]
CYSLTR1基因(以及对应的蛋白质)的细胞分布位置:
CYSLTR1基因的本体(GO)信息:
名称 |
---|
4020 Calcium signaling pathway [PATH:hsa04020] |
4080 Neuroactive ligand-receptor interaction [PATH:hsa04080] |
名称 |
---|
Class A/1 (Rhodopsin-like receptors) |
Eicosanoid ligand-binding receptors |
G alpha (q) signalling events |
Gastrin-CREB signalling pathway via PKC and MAPK |
GPCR downstream signaling |
GPCR ligand binding |
Leukotriene receptors |
Signal Transduction |
Signaling by GPCR |
疾病名称 | 关系值 | NofPmids | NofSnps | 来源 |
Drug Allergy | 0.122367032 | 2 | 0 | CTD_human_GAD |
Asthma, Aspirin-Induced | 0.120542884 | 4 | 0 | BeFree_CTD_human |
Pulmonary Fibrosis | 0.080271442 | 2 | 0 | BeFree_RGD |
Pulmonary Hypertension | 0.08 | 1 | 0 | RGD |
Dyspnea | 0.08 | 1 | 0 | RGD |
Reperfusion Injury | 0.08 | 1 | 0 | RGD |
Multiple Organ Failure | 0.08 | 1 | 0 | RGD |
Asthma | 0.05471789 | 35 | 1 | BeFree_GAD_LHGDN |
Colonic Neoplasms | 0.0054487 | 2 | 0 | LHGDN |
Adenocarcinoma | 0.002995792 | 1 | 0 | BeFree_LHGDN |
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