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Shenzhen Key Laboratory for Psychological Healthcare & Shenzhen Institute of Mental Health

3 ARTICLES PUBLISHED IN JoVE

Developmental Biology

A 5-mC Dot Blot Assay Quantifying the DNA Methylation Level of Chondrocyte Dedifferentiation In Vitro

Zhaofeng Jia^1,2, Yujie Liang³, Bin Ma^4,5, Xiao Xu^2,6, Jianyi Xiong², Li Duan², Daping Wang^1,2

¹Guangzhou Medical University, ²Shenzhen Key Laboratory of Tissue Engineering, Shenzhen Laboratory of Digital Orthopeadic Engineering, Department of Orthopedics, Shenzhen Second People's Hospital (The First Hospital Affiliated to Shenzhen University), ³Department of Chemistry, The Chinese University of Hong Kong, ⁴School of Biomedical Engineering, Shanghai Jiao Tong University, ⁵Renji Hospital Clinical Stem Cell Research Center, Shanghai Jiao Tong University School of Medicine, ⁶Shantou University Medical College

We present a method to quantify DNA methylation based on the 5-methylcytosine (5-mC) dot blot. We determined the 5-mC levels during chondrocyte dedifferentiation. This simple technique could be used to quickly determine the chondrocyte phenotype in ACI treatment.

Biology

Magnetic-Activated Cell Sorting Strategies to Isolate and Purify Synovial Fluid-Derived Mesenchymal Stem Cells from a Rabbit Model

Zhaofeng Jia^1,2,3, Yujie Liang^4,5, Xingfu Li^2,3, Xiao Xu^1,2,3, Jianyi Xiong^2,3, Daping Wang^1,2,3, Li Duan^2,3

¹Postgraduate institution, Guangzhou Medical University, ²Guangdong Provincial Research Center for Artificial Intelligence and Digital Orthopedic Technology, ³Shenzhen Key Laboratory of Tissue Engineering, Shenzhen Laboratory of Digital Orthopaedic Engineering, Shenzhen Second People's Hospital (The First Hospital Affiliated to Shenzhen University), ⁴Department of Chemistry, Chinese University of Hong Kong, ⁵Shenzhen Kangning Hospital, Shenzhen Mental Health Center

This article presents a simple and economic protocol for the straightforward isolation and purification of mesenchymal stem cells from New Zealand white rabbit synovial fluid.

Biology

Large-Scale Preparation of Synovial Fluid Mesenchymal Stem Cell-Derived Exosomes by 3D Bioreactor Culture

Li Duan^1,2, Xingfu Li^1,2, Xiao Xu^1,2, Limei Xu^1,2, Daping Wang^1,2, Kan Ouyang^1,2, Yujie Liang^1,3

¹Department of Orthopedics, The First affiliated hospital of Shenzhen University, Shenzhen Second People's Hospital, ²Guangdong Provincial Research Center for Artificial Intelligence and Digital Orthopedic Technology, Shenzhen Second People's Hospital, ³Department of Child and Adolescent Psychiatry, Shenzhen Kangning Hospital, Shenzhen Mental Health Center, Shenzhen Key Laboratory for Psychological Healthcare & Shenzhen Institute of Mental Health

Here, we present a protocol to produce a large number of GMP-grade exosomes from synovial fluid mesenchymal stem cells using a 3D bioreactor.