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增加HSD11β1表达在人体肌肉性子宫:影响增强的葡萄皮质皮质体信号传递

Carrie Malcom¹, Ozlem Guzeloglu-Kayisli¹, Burak Un¹

¹Department of Obstetrics & Gynecology, University of South Florida, Morsani College of Medicine, Tampa, FL, 33606.

The Journal of clinical endocrinology and metabolism

|April 28, 2025

概括

在子宫乳腺瘤中FKBP51蛋白水平可能通过与葡萄糖皮质体受体和HSD11B1建立病态循环,改变基因表达和促进肌纤维细胞表型来驱动疾病.

科学领域:

内分泌学在内分泌学.
分子生物学分子生物学
妇科瘤学妇科瘤学

背景情况:

FKBP51是一种配合蛋白质,它与葡萄糖皮质体受体 (GR) 结合,并可以抑制其活性.
在子宫瘤中以前观察到高FKBP51水平,与肌肉细胞相比.

研究的目的:

通过调节GR信号传递,研究FKBP51水平的增加是否有助于菌瘤的发病.
探索FKBP51在调节HSD11B1表达在瘤细胞中的作用.

主要方法:

用RNA测序和qPCR分析了瘤细胞培养中的基因表达.
使用FKBP5-siRNA来抑制FKBP51的表达.
德克萨米他 (DEX) 用于刺激GR信号.
量化了HSD11B1,CNN1和LAMA2的基因表达.

主要成果:

在leiomyoma和配对肌肉组织中,HSD11B1的表达明显高于正常肌肉组织.
DEX治疗上调了HSD11B1的转录,在瘤细胞中效果更为明显.
沉默FKBP51降低了DEX诱导的HSD11B1上调,并改变了LAMA2和CNN1的表达.

结论:

FKBP51可以增强GR介导的转录,形成leiomyoma中的病理FKBP51-GR-HSD11β1轴.
这个轴增加HSD11B1水平,导致细胞外基因和光滑肌肉基因的转录发生变化.
这些分子变化可能会通过诱导肌纤维细胞表型来促进子宫乳腺瘤的发展.

关键词:

在FKBP51中使用.基因表达基因表达葡萄糖皮质体信号传递在HSD11β1中.在Leiomyoma和Leiomyoma之间.

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