通过抑制Akt信号通路,GPR168在小鼠黑色素瘤中起到瘤抑制作用
Xiang Guo1,2, Zongliang Guo3, Peirong Bai1,2
1Shanxi Academy of Medical Sciences, Shanxi Bethune Hospital, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, China.
PloS one
|May 28, 2024
概括
过度表达G蛋白结合受体168 (GPR168) 抑制黑色素瘤细胞的生长和扩散. 这表明GPR168作为瘤抑制剂,为恶性黑色素瘤提供了潜在的新治疗点.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 与G蛋白结合的受体是G蛋白结合的受体.
背景情况:
- 恶性黑色素瘤 (MM) 发病率在全球范围内不断上升,尽管治疗方面取得了进展.
- G蛋白结合受体168 (GPR168),也称为MrgprF,在许多癌症中表达较低,包括MM.
- 癌症基因组图谱 (TCGA) 数据的统计分析证实了黑色素瘤与正常黑色素细胞的GPR168下调.
研究的目的:
- 为了研究GPR168在MM细胞中的过度表达的影响.
- 阐明GPR168在黑色素瘤中的功能背后的分子机制.
- 使用体外和体外模型探索GPR168在黑色素瘤中的作用.
主要方法:
- 利用癌症基因组图集 (TCGA) 来进行GPR168表达的统计分析.
- 在体外研究中采用了小鼠黑色素瘤B16-F10细胞系.
- 使用异种移植瘤模型来评估GPR168的体内效应.
- 进行了涉及Akt信号通路的机制研究,并使用抗GPR168多克隆抗体进行了救援实验.
主要成果:
- 过度表达GPR168显著抑制了B16-F10细胞的增殖,迁移和异种移植瘤的生长.
- 机械研究显示,GPR168通过Akt路径影响黑色素瘤的进展,降低p-Akt,p-GSK-3β,β-catenin,Myc,CyclinD1和CDK4的表达.
- 使用抗GPR168抗体的救援实验恢复了细胞增殖和迁移,验证了GPR168的抑制作用.
结论:
- 过度表达GPR168通过Akt信号通路抑制了老鼠黑色素瘤细胞的增殖和迁移.
- 这些发现确立了GPR168作为恶性黑色素瘤中潜在的新型瘤抑制剂.
- 对于MM治疗的未来干预来说,GPR168是一个有前途的治疗目标.
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