WNT5A是WNT基因家族的重要成员,该家族编码一组分泌型糖蛋白,通过调控细胞间信号传导参与胚胎发育、细胞增殖和分化等过程。WNT5A属于非经典WNT通路(即不依赖β-catenin的途径),主要通过激活平面细胞极性(PCP)通路和钙离子通路发挥作用,影响细胞迁移、组织极化和器官形成。其表达产物WNT5A蛋白通过与卷曲受体(Frizzled)和辅助受体(如ROR2)结合触发下游信号。WNT5A在多种组织中表达,尤其在神经系统、骨骼和心血管系统发育中起关键作用。突变可能导致功能丧失或异常激活,例如ROR2共受体突变与短指-并指综合征(Robinow综合征)相关,而WNT5A过表达与多种癌症(如黑色素瘤、乳腺癌)的侵袭转移相关。该基因低表达可能引起发育缺陷,如骨骼畸形;而过表达会促进上皮-间质转化(EMT),加速肿瘤转移。WNT家族共性为均含保守的半胱氨酸残基,通过自分泌/旁分泌方式调控进化保守的信号网络。目前WNT5A在组织再生和癌症治疗中的双向作用(既促进修复又驱动肿瘤)是研究热点,其翻译后修饰(如棕榈酰化)对分泌和功能的影响也被重点关注。术语解释:上皮-间质转化(EMT)指上皮细胞获得迁移能力的生物学过程;棕榈酰化(palmitoylation)是蛋白质添加脂质修饰的化学变化。
The WNT gene family consists of structurally related genes which encode secreted signaling proteins. These proteins have been implicated in oncogenesis and in several developmental processes, including regulation of cell fate and patterning during embryogenesis. This gene encodes a member of the WNT family that signals through both the canonical and non-canonical WNT pathways. This protein is a ligand for the seven transmembrane receptor frizzled-5 and the tyrosine kinase orphan receptor 2. This protein plays an essential role in regulating developmental pathways during embryogenesis. This protein may also play a role in oncogenesis. Mutations in this gene are the cause of autosomal dominant Robinow syndrome. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Jan 2012]
Wnt信号基因家族由结构相关基因,其编码分泌信号蛋白。这些蛋白质有牵连肿瘤发生并在几个发育过程,包括胚胎发育过程中细胞命运和图案化的调节。该基因编码的WNT家族通过两者的规范和非经典Wnt途径信号的一个成员。这种蛋白是七跨膜受体型卷曲5和酪氨酸激酶孤儿受体的配体2.本蛋白质起着在胚胎发育过程中调节发育途径至关重要的作用。这种蛋白也可能在肿瘤发生中发挥作用。在这个基因的突变是常染色体显性遗传Robinow综合征的病因。选择性剪接结果在多个抄本变形。 [由RefSeq的,2012年1月提供]
WNT5A基因(以及对应的蛋白质)的细胞分布位置:
WNT5A基因的本体(GO)信息:
| 名称 |
|---|
| 4310 Wnt signaling pathway [PATH:hsa04310] |
| 4340 Hedgehog signaling pathway [PATH:hsa04340] |
| 4390 Hippo signaling pathway [PATH:hsa04390] |
| 4550 Signaling pathways regulating pluripotency of stem cells [PATH:hsa04550] |
| 4916 Melanogenesis [PATH:hsa04916] |
| 5200 Pathways in cancer [PATH:hsa05200] |
| 5205 Proteoglycans in cancer [PATH:hsa05205] |
| 5217 Basal cell carcinoma [PATH:hsa05217] |
| 5166 HTLV-I infection [PATH:hsa05166] |
| 名称 |
|---|
| Asymmetric localization of PCP proteins |
| beta-catenin independent WNT signaling |
| Ca2+ pathway |
| Class B/2 (Secretin family receptors) |
| GPCR ligand binding |
| negative regulation of TCF-dependent signaling by WNT ligand antagonists |
| PCP/CE pathway |
| Signaling by Wnt |
| TCF dependent signaling in response to WNT |
| WNT ligand biogenesis and trafficking |
| WNT5A-dependent internalization of FZD2, FZD5 and ROR2 |
| WNT5A-dependent internalization of FZD4 |
| 疾病名称 | 关系值 | NofPmids | NofSnps | 来源 |
| Robinow Syndrome | 0.241357209 | 5 | 4 | BeFree_CLINVAR_UNIPROT |
| Neoplastic Cell Transformation | 0.12 | 1 | 0 | CTD_human |
| Female Urogenital Diseases | 0.12 | 1 | 0 | CTD_human |
| Uterine Cervical Neoplasm | 0.12 | 1 | 0 | CTD_human |
| Lung Neoplasms | 0.12 | 1 | 0 | CTD_human |
| Anorectal Anomalies | 0.08 | 0 | 0 | MGD |
| melanoma | 0.015511913 | 19 | 0 | BeFree_LHGDN |
| Neoplasm Metastasis | 0.00706742 | 17 | 0 | BeFree_LHGDN |
| Mammary Neoplasms | 0.006534468 | 6 | 0 | BeFree_LHGDN |
| Prostatic Neoplasms | 0.0054487 | 2 | 0 | LHGDN |
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