单细胞转录组测序技术与椎间盘退变的发病机制  

Single-cell RNA sequencing and the pathogenesis of intervertebral disc degeneration

作　　者：程浩天 赵晓峰[1] 陆向东[1] 赵轶波[1] 范志峰 齐德泰 王晓楠 周润田 靳鑫杰 赵斌[1] Cheng Haotian;Zhao Xiaofeng;Lu Xiangdong;Zhao Yibo;Fan Zhifeng;Qi Detai;Wang Xiaonan;Zhou Runtian;Jin Xinjie;Zhao Bin(Second Clinical Medical College of Shanxi Medical University,Taiyuan 030001,Shanxi Province,China)

机构地区：[1]山西医科大学第二临床医学院,山西省太原市030001

出　　处：《中国组织工程研究》2024年第1期93-99,共7页Chinese Journal of Tissue Engineering Research

基　　金：山西省科技成果转化引导专项项目(201904D121008),项目负责人:赵斌。

摘　　要：背景:椎间盘退变在临床上被认为是引起下腰痛的主要病因,但由于椎间盘退变发病机制尚不明确,目前仍缺乏有效手段来延缓疾病进展。单细胞转录组测序技术可以在单个细胞水平对mRNA进行扩增和测序,揭示单个细胞的基因表达强度,根据细胞的异质性发现组织中的不同细胞亚群,在分子水平上研究椎间盘退变的发病机制,为其早期诊断和治疗提供新的理论依据。目的:介绍了单细胞转录组测序技术的基本原理并综述了近年来单细胞转录组测序技术在椎间盘退变发病机制中的研究进展。方法:应用计算机系统检索PubMed、Web of Science、中国知网和万方数据库中2012-2022年出版的文献,英文检索词为:“single-cell RNA sequencing,intervertebral disc degeneration,sequencing technology”;中文检索词为“单细胞转录组测序,椎间盘退变,测序技术”。排除重复、质量较差及不相关的文献,最终纳入70篇文献进行综述分析。结果与结论:①鉴定了稳态软骨样细胞、肥大软骨样髓核细胞、纤维髓核细胞等新型细胞亚群,识别了这几种细胞亚群的标记基因、转录因子,并阐述了这几种细胞亚群在椎间盘退变发生发展过程中的功能及分化轨迹和细胞命运,同时提出了祖细胞概念,确定了具备祖细胞特性的细胞亚群,在小鼠体内验证了该细胞亚群治疗椎间盘退变的有效性。②识别了兼具软骨特性和纤维特性的纤维软骨样纤维环细胞和纤维环干细胞,并在体外结合纤维软骨诱导剂和丝素蛋白及透明质酸制备了一种新型复合水凝胶,通过小鼠体内实验验证了这种水凝胶既能修复纤维环组织也能恢复软骨基质,对于椎间盘退变有显著治疗效果。③在终板软骨组织中发现了调节性软骨细胞,其在椎间盘退变进展中出现2种截然不同的命运并明确了2种命运中的差异基因,细胞间通讯分析表示调节性软骨细胞与�BACKGROUND:Intervertebral disc degeneration is clinically considered to be the main cause of low back pain,but due to the unclear pathogenesis of intervertebral disc degeneration,there is still a lack of effective means to delay the progression of the disease.Single-cell RNA sequencing technology can amplify and sequence mRNA at the single-cell level,reveal the gene expression intensity of a single cell,discover different cell subsets in tissues according to the heterogeneity of cells,study the pathogenesis of intervertebral disc degeneration at the molecular level,and provide a new theoretical basis for its early diagnosis and treatment.OBJECTIVE:To introduce the basic principles of single-cell RNA sequencing technology and review the research progress of single-cell RNA sequencing technology in intervertebral disc degeneration in recent years.METHODS:A computer was used to search PubMed,Web of Science,CNKI and WanFang databases for the literature published from 2012 to 2022.Key words were“single-cell RNA sequencing,intervertebral disc degeneration,sequencing Technology”in Chinese and English.Duplicate,poor-quality and irrelevant articles were excluded;a total of 70 articles were eventually included.RESULTS AND CONCLUSION:(1)We identified new cell subsets such as homeostatic chondrocytes,hypertrophy chondrocyte-like nucleus pulposus cells and fibrous nucleus pulposus cells,identified the marker genes and transcription factors of these cell subsets,and described the functions,differentiation paths and cell fate of these cell subsets during the development and progression of intervertebral disc degeneration,and proposed the concept of progenitor nucleus pulposus cells.A cell subpopulation with progenitor nucleus pulposus cells properties was identified and its effectiveness in treating intervertebral disc degeneration was verified in mice.(2)Fibro chondrocyte-like annulus fibrosus cells and annulus fibrosus stem cells with both cartilage and fiber properties were identified,and a new type of composite hydrogel

关 键 词：单细胞转录组测序 椎间盘退变 发病机制 测序技术 

分 类 号：R459.9[医药卫生—治疗学] R318[医药卫生—临床医学] R608