长链乙-CoA合成酶1 (ACSL1) 在决定化过程中保护子宫内膜免受过多的棕酸应激
Weijia Gu1, Biya Zeng1, Yi Zhang1
1Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, China; Zhejiang Provincial Clinical Research Center for Reproductive Health and Disease, Hangzhou 310016, China; Zhejiang Key Laboratory of Precise Protection and Promotion of Fertility, Hangzhou 310016, China.
Cellular signalling
|September 29, 2024
概括
长链乙-CoA合成酶1 (ACSL1) 对于子宫脱细胞化,调节脂质代谢和保护细胞免受脂肪酸压力至关重要. 它的抑制会影响植入和怀孕的维持.
科学领域:
- 生殖生物学 生殖生物学
- 细胞代谢的细胞代谢.
- 内分泌学 在内分泌学.
背景情况:
- 子宫内膜受容性和成功怀孕取决于子宫内膜 stromal 细胞 (EnSCs) 和上皮细胞过渡的决定性.
- 脂质代谢越来越被认为是决定化的关键调节者,但具体的脂质组变化和调节机制仍然不清楚.
研究的目的:
- 研究脂质代谢,特别是长链合成酶1 (ACSL1) 在人类子宫脱细胞化中的作用.
- 阐明ACSL1通过哪些调节机制影响脱细胞化和子宫内膜细胞功能.
主要方法:
- 对子宫内膜层细胞和果叶层细胞进行比较的脂质学分析.
- 在EnSC中进行ACSL1敲击和过度表达实验.
- 评估决定性标记物 (益乳素,IGFBP1,PAEP,SPP1) 和细胞功能 (呼吸能力,脂质滴积累).
- 在3D共同培养模型中使用Triacsin C抑制ACSL1.
主要成果:
- 在决定化过程中,ACSL1的表达显著升高,与改变的脂质组状况相关.
- ACSL1的倒置抑制了EnSC的决定性,通过AKT通路减少了关键标记物的表达,并损害了细胞呼吸.
- 虽然脂质吸收增加,但脂质滴积在决定化过程中减少;ACSL1调节这些过程.
- 棕酸阻碍了决定化,这种效应因ACSL1过度表达而部分逆转.
- 在3D模型中的ACSL1抑制和通过树皮细胞敲击负面影响上皮细胞决定化标志物.
结论:
- ACSL1对于成功的子宫脱细胞化至关重要,在脂质代谢调节中起着关键作用.
- ACSL1在决定化过程中促进适当的脂质处理,并保护EnSCs免受过多的脂肪酸压力,支持植入和怀孕.
- 准ACSL1可能为改善子宫内膜接受度和妊娠结果提供治疗策略.
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