Ann Rheum Dis:单细胞RNA-seq分析揭示了人类骨关节炎的进展

2018-07-24 xiangting MedSci原创

这项研究结果为软骨细胞分类学提供了新的见解,并为人类OA软骨再生的有效和功能性操作提供了潜在线索。

了解人类软骨退变和再生的潜在分子机制有助于改善骨关节炎(OA)的治疗策略。这项研究使用单细胞RNA测序(scRNA-seq)报道了控制人类OA发病机制的分子程序和谱系进展模式。

对来自10例接受膝关节成形术OA患者的1464个软骨细胞进行了无偏倚转录组scRNA-seq分析、计算分析和组织学分析。使用严重程度指数和对应分析研究了OA转录程序与临床结局之间的关系。

在人类OA软骨中识别到7个分子学定义的软骨细胞群,其中包括3种具有不同功能的新表型。以单细胞分辨率呈现了不同OA阶段的基因表达谱。研究发现增殖性软骨细胞、肥大前软骨细胞和肥大软骨细胞(HTCs)间存在潜在的转化,并在HTCs中定义了一个新的亚组。研究揭示了软骨前体细胞(CPCs)的新标记物,并使用计算分析证明了CPCs与纤维软骨细胞之间的关联。值得注意的是,研究得出了关于临床结局的预测目标,并阐明了不同细胞类型在OA早期诊断和治疗中的作用。

这项研究结果为软骨细胞分类学提供了新的见解,并为人类OA软骨再生的有效和功能性操作提供了潜在线索,这有助于改善健康状况。

原始出处:
Quanbo Ji, Yuxuan Zheng, Guoqiang Zhang, et al. Single-cell RNA-seq analysis reveals the progression of human osteoarthritis. Ann Rheum Dis. 19 July 2018.

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    2019-03-22 lisa438
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    2018-07-26 lmm397
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    2018-07-24 131****1460

    学习了受益匪浅

    0

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