对与维生素D受体信号相关的基因的转录基因分析揭示了皮肤癌之间的差异
Juliana Polizel Ocanha-Xavier1,2, José Cândido Caldeira Xavier-Junior1,3,4, Hélio Amante Miot5
1Department of Pathology, São Paulo State University-UNESP, Botucatu, São Paulo, Brazil.
Experimental dermatology
|October 22, 2024
概括
维生素D受体 (VDR) 和视网膜X受体-α (RXRα) 途径在皮肤癌中发生变化. 与健康皮肤相比,非黑色素瘤皮肤癌 (BCC,SCC) 和黑色素细胞病变 (IN,MM) 的VDR和RXRα水平较低.
科学领域:
- 皮肤病学 皮肤病学
- 分子生物学分子生物学
- 在瘤学瘤学.
背景情况:
- 维生素D受体 (VDR) 与视网膜X受体-α (RXRα) 异构,以调节基因表达.
- 这种VDR/RXRα复合体在与皮肤癌发展相关的细胞过程中起作用.
研究的目的:
- 为了比较mRNA表达的VDR/RXRα异构体和相关基因在非黑色素瘤皮肤癌 (基底细胞癌,状细胞癌) 和黑色素细胞病变 (皮内,黑色素瘤) 与对照皮肤.
- 在皮肤病变中识别VDR/RXRα通路内的潜在生物标志物和治疗点.
主要方法:
- 纳米链®基因表达分析是在46个嵌入式皮肤样本的mRNA上进行的.
- 样本包括基底细胞癌 (BCC),状细胞癌 (SCC),皮内 (IN),黑色素瘤 (MM) 和对照皮肤.
- 量化了VDR,RXRα和其他22个相关基因的表达水平.
主要成果:
- 与对照皮肤相比,所有测试的皮肤病变 (BCC,SCC,IN,MM) 的VDR和RXRαmRNA水平显着较低.
- 与对照组相比,BCC和SCC的NCOR2上调,而MM和IN的RXRγ高于对照组.
- 在非黑色素细胞癌 (BCC/SCC) 和黑色素细胞病变 (IN/MM) 之间观察到明显的基因表达模式,其中TP53,FOXO3和MED1在BCC和SCC之间存在差异,AhR区分黑色素瘤和nevi.
结论:
- 在各种皮肤病变中,VDR/RXRα通路的调节失调,减少VDR和RXRα表达是共同特征.
- 特定的基因表达特征突出了非黑色素细胞和黑色素细胞皮肤瘤之间的差异.
- 了解VDR/RXRα通路在皮肤癌中的作用,可以为未来的预防和治疗策略提供信息,特别是对于非黑色素细胞瘤.
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