与衰老相关的基因通路在与老化相关的马骨关节炎中具有差异表达
Jacob Singer1,2, Lyndah Chow1,2, Dylan Ammons1,2
1Orthopaedic Research Center, Translational Medicine Institute, Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO.
American journal of veterinary research
|December 30, 2025
概括
老化基因表达在患有骨关节炎 (OA) 的马中发生变化,关节表达增加,外周血液表达减少. 向衰老细胞可能为马类OA提供一种新的治疗方法.
科学领域:
- 兽医医学 兽医医学 兽医医学
- 免疫学 免疫学 免疫学
- 遗传学 遗传学 是一个
背景情况:
- 骨关节炎 (OA) 是一种常见的老化相关的退行性关节疾病在马.
- 衰老是一种稳定的细胞循环停止状态,有助于衰老和与年龄有关的疾病.
- 了解马类OA的衰老对于开发新型治疗策略至关重要.
研究的目的:
- 研究OA马的关节和外围血液白细胞中衰老基因的相对表达.
- 探索老年治疗药物的潜力,以管理马类OA.
主要方法:
- 从OA和对照马 (n=65) 的外周血液单核细胞 (PBMC) 的单细胞RNA测序数据和mRNA测序数据分析.
- 使用limma进行差异基因表达分析,将OA与对照组进行比较.
- 使用定制衰老基因组的应用,通过快速基因组丰富分析来识别衰老特异性途径.
主要成果:
- 在突液中观察到衰老基因表达的细胞类型特异性.
- 炎症和压力诱导的衰老途径在特定的关节细胞类型 (树突细胞,循环细胞,CD8 T细胞和玛三角T细胞) 中被上调.
- 关键的衰老基因 (AHR,IL1RN,HMOX1,PLAUR,TIMP1) 在多种突液细胞类型中被上调,而大多数衰老基因在PBMC中被下调.
结论:
- 老化途径在老年马中具有差异性表达,具有关节上调和PBMC下调的老化基因.
- 向衰老细胞代表了治疗马类OA的潜在疾病修饰策略.
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