HBP1增强孕激素受体活性和IGFBP1表达,导致子宫内膜分泌
Yuying Guo1, Wencai Tian1, Changjun Nie2
1Reproductive Medical Center, The First Affiliated Hospital of Guangxi Medical University, Nanning, China.
Communications biology
|January 17, 2026
概括
高流动性组盒转录因子1 (HBP1) 对于人类决定和胚胎植入至关重要. 它的下调与反复的植入失败有关,突出显示了它在怀孕早期的调节作用.
科学领域:
- 生殖生物学 生殖生物学
- 分子内分泌学分子内分泌学
- 遗传学 是一个遗传学.
背景情况:
- 人体子宫内膜层细胞 (HESCs) 的二分化对于怀孕的确立至关重要.
- 控制人类决定性的分子机制仍然不完全理解.
研究的目的:
- 调查高流动性组盒转录因子1 (HBP1) 在HESC决定化中的作用.
- 阐明HBP1在胚胎植入中的调节机制.
主要方法:
- 在HESCs中,HBP1敲击和过度表达.
- 通过mRNA和蛋白质水平分析决定化标记物 (IGFBP1,FOXO1).
- 染色体免疫沉降测序 (ChIP-Seq) 和RNA测序 (RNA-Seq). 染色体免疫沉降测序 (ChIP-Seq) 和RNA测序 (RNA-Seq). 染色体免疫沉降测序 (ChIP-Seq) 和RNA测序 (RNA-Seq). 染色体免疫沉降测序 (ChIP-Seq) 和RNA测序 (RNA-Seq).
- 在基因促进体的基因修饰分析 (H3K4me3).
- 来自复发性植入失败患者的临床样本分析.
主要成果:
- 抑制HBP1显著降低了IGFBP1和FOXO1的表达.
- HBP1直接调节IGFBP1的转录.
- 通过促进H3K4me3在PGR及其基因促进体 (FKBP5,FOSL2,FKBP4) 的丰富,HBP1增强了孕激素受体 (PGR) 转录活性.
- 在复发性植入失败患者的子宫内膜中观察到减少HBP1和PGR标分子表达.
结论:
- HBP1是人类决定和胚胎植入的关键调节者.
- HBP1 影响 PGR 转录活性和下游目标基因表达.
- HBP1的失调与植入失败有关,这表明它有可能成为诊断或治疗目标.
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