沉默circSERPINE2通过YBX3/PCNA/p21轴抑制介酶干细胞衰老
Fenglei Chen1, Shan Wang2, Chenying Zeng2
1Department of Orthopedics, Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen, 518033, People's Republic of China.
Cellular and molecular life sciences : CMLS
|October 13, 2023
概括
像circSERPINE2这样的循环RNA (circRNAs) 随着年龄的增长而积累. 通过小干扰RNA (siRNA) 准circSERPINE2,可以使细胞间干细胞 (MSC) 恢复青春,并可能治疗诸如骨关节炎之类的衰老疾病.
科学领域:
- 分子生物学分子生物学
- 细胞生物学 细胞生物学
- 老年学是一门学科.
背景情况:
- 循环RNAs (circRNAs) 是稳定的分子,在衰老的组织中积累.
- 干细胞衰老和与衰老相关的疾病中circRNAs的作用尚不清楚.
研究的目的:
- 为了研究circRNAs在中酶体干细胞 (MSC) 衰老中的作用.
- 探索circSERPINE2作为潜在的治疗目标,治疗与衰老相关的疾病.
主要方法:
- RNA测序以确定MSC中的差异表达的circRNAs.
- 小干扰RNA (siRNA) 和过度表达研究,以评估circSERPINE2的功能.
- RNA拉下和质谱测量以识别相互作用的蛋白质.
- 在体内研究,使用小鼠骨关节炎模型.
主要成果:
- 在老年MSC中,CircSERPINE2的表达显著增加.
- 向circSERPINE2的siRNA延迟MSC衰老,并使细胞再生.
- CircSERPINE2与YBX3相互作用,影响PCNA促进剂和p21降解.
- 在骨关节炎小鼠模型中,CircSERPINE2的抑制减轻了MSC衰老和软骨退化.
结论:
- 这种circSERPINE2/YBX3/PCNA/p21通路调节了MSC衰老.
- CircSERPINE2 是一个潜在的治疗点,用于老化相关的疾病,如骨关节炎.
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