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Abstract

Biology

椎间盘从胚胎发育到退化的光学切片和可视化

Published: July 8th, 2021

DOI:

10.3791/62594

1Laboratory of Cell Biology, Department of Orthopedic Surgery, University Hospital of Tübingen, 2Department of Orthopedic Surgery, University Hospital of Tübingen, 3Institute for Bioinformatics and Medical Informatics, Faculty of science of the University of Tübingen, 4Medical faculty of the University of Tübingen, 5Bavarian Health and Food Safety Authority

椎间盘(IVD)变性是腰痛的主要原因,并且对受影响的个体造成高度损害。为了解码椎间盘变性并能够开发再生方法,对IVD的细胞生物学的透彻理解至关重要。这种生物学中仍未得到解答的一个方面是细胞如何在生理状态和变性过程中在空间上排列的问题。IVD的生物学特性及其可用性使这种组织难以分析。本研究调查了肛门纤维中从早期胚胎发育到终末期变性的空间软骨细胞组织。应用光学切片方法(Apotome)以牛胚胎组织作为动物模型和从接受脊柱手术的患者那里获得的人盘组织进行高分辨率染色分析。由于早期胚胎牛盘中的软骨细胞密度非常高,细胞数量在妊娠,生长和成熟期间减少。在人盘中,细胞密度的增加伴随着组织变性的进展。正如已经在关节软骨中证明的那样,集群形成代表了晚期椎间盘变性的特征。

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