GLIPR1(Glioma Pathogenesis-Related Protein 1,神经胶质瘤致病相关蛋白1)是一种分泌型糖蛋白,属于CAP(Cysteine-rich secretory proteins, Antigen 5, and Pathogenesis-related 1 proteins)基因家族成员。该家族共性为含有保守的半胱氨酸残基结构域,参与细胞间信号传导、免疫调节及应激反应。GLIPR1在正常组织中低表达,但在前列腺癌、胶质瘤等肿瘤中常异常高表达,其生物学功能复杂,具有促凋亡和促肿瘤的双重作用。在正常生理状态下,GLIPR1通过激活p53依赖的凋亡通路(如上调BAX、下调BCL-2)发挥抑癌作用;但在肿瘤微环境中,它可能通过PI3K/AKT等信号通路促进肿瘤侵袭转移。主要作用位点包括细胞膜(通过结合磷脂酰肌醇)和细胞核(调控基因转录)。突变可能导致其亚细胞定位异常,如错义突变R48H会削弱其促凋亡功能,与前列腺癌进展相关。GLIPR1过表达会增强肿瘤细胞对放疗的抵抗性,并促进EMT(上皮-间质转化,一种促使癌细胞转移的生物学过程);而敲低表达则抑制肿瘤生长,但可能削弱正常组织的DNA损伤修复能力。该基因与神经胶质瘤、前列腺癌、膀胱癌等密切相关,其启动子甲基化状态可作为前列腺癌的生物标志物。在基因治疗中,GLIPR1被探索作为溶瘤腺病毒的靶点,因其在肿瘤特异性表达的特点。需要注意的是,GLIPR1在小鼠中的同源基因Glipr1还参与精子发生过程,提示其功能存在物种差异。
This gene encodes a protein with similarity to both the pathogenesis-related protein (PR) superfamily and the cysteine-rich secretory protein (CRISP) family. Increased expression of this gene is associated with myelomocytic differentiation in macrophage and decreased expression of this gene through gene methylation is associated with prostate cancer. The protein has proapoptotic activities in prostate and bladder cancer cells. This gene is a member of a cluster on chromosome 12 containing two other similar genes. Alternatively spliced variants which encode different protein isoforms have been described; however, not all variants have been fully characterized. [provided by RefSeq, Jul 2008]
这个基因编码的蛋白质具有相似性两者的发病机理相关蛋白(PR)超家族和富含半胱氨酸的分泌蛋白(CRISP)家族。该基因的表达的增加与在巨噬细胞myelomocytic分化相关联,并且通过基因甲基化降低该基因的表达与前列腺癌有关。蛋白质具有在前列腺癌和膀胱癌的细胞凋亡活性。该基因是在含有其他两个类似基因的染色体12上的集群的成员。可变剪接变体,其编码不同蛋白同种型已被描述;然而,并非所有的变体已被充分表征。 [由RefSeq的,2008年7月提供]
GLIPR1基因(以及对应的蛋白质)的细胞分布位置:
GLIPR1基因的本体(GO)信息:
名称 |
---|
Fatty acid, triacylglycerol, and ketone body metabolism |
Metabolism |
Metabolism of lipids and lipoproteins |
PPARA activates gene expression |
Regulation of lipid metabolism by Peroxisome proliferator-activated receptor alpha (PPARalpha) |
疾病名称 | 关系值 | NofPmids | NofSnps | 来源 |
IGA Glomerulonephritis | 0.12 | 1 | 0 | CTD_human |
Nephroblastoma | 0.12 | 1 | 0 | CTD_human |
Glioma | 0.003810118 | 4 | 0 | BeFree_LHGDN |
Prostatic Neoplasms | 0.002995792 | 2 | 0 | BeFree_LHGDN |
Malignant neoplasm of prostate | 0.002442977 | 9 | 0 | BeFree |
Prostate carcinoma | 0.002442977 | 9 | 0 | BeFree |
Prostate cancer recurrent | 0.000542884 | 2 | 0 | BeFree |
Glioblastoma | 0.000542884 | 2 | 0 | BeFree |
Carcinogenesis | 0.000271442 | 1 | 0 | BeFree |
Prostatic Intraepithelial Neoplasias | 0.000271442 | 1 | 0 | BeFree |
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