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甲状腺激素受体α1:甲状腺癌细胞分化的一个新型调节器
Eunmi Hwang1, Woo Kyung Lee Doolittle1,2, Yuelin Jack Zhu3
1Laboratory of Molecular Biology, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA.
Oncogene
|August 26, 2023
概括
甲状腺激素受体α1 (TRα1) 通过诱导细胞亡和恢复细胞分化来抑制甲状腺癌 (ATC) 的进展. TRα1重新表达可能为ATC患者提供新的治疗策略.
科学领域:
- 分子生物学分子生物学
- 遗传学 遗传学 是一个
- 在瘤学瘤学.
背景情况:
- 甲状腺激素受体α1 (TRα1) 对于甲状腺激素的作用至关重要,但其在癌症,特别是甲状腺瘤 (ATC) 中的作用尚不清楚.
- 对癌症基因组图谱 (TCGA) 数据的分析显示,在非分化的ATC中,THRA基因表达的丧失.
研究的目的:
- 为了研究TRα1在形甲状腺癌进展中的功能作用.
- 为了确定TRα1是否可以抑制瘤生长并诱导ATC细胞的分化.
主要方法:
- 在人类ATC细胞系 (THJ-11T和THJ-16T) 中,TRα1的稳定表达.
- 在mRNA和蛋白质水平上分析细胞增殖,细胞亡和基因表达 (PAX8).
- TCGA数据库分析和单细胞转录组测序 (scRNA-seq).
主要成果:
- TRα1的表达抑制了ATC细胞的增殖和诱导的亡.
- TRα1表达上调配对盒基因8 (PAX8) 表达,这在父细胞中是缺乏的.
- TRα1直接调节PAX8,scRNA-seq表明TRα1作为抑制瘤生长的转录因子.
- TRα1诱导的PAX8将ATC细胞转移到一个差异化状态.
结论:
- TRα1通过抑制增殖和促进分化,在ATC中起到瘤抑制作用.
- TRα1是甲状腺分化的新型调节剂,也是改善ATC患者治疗结果的潜在治疗标.
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