ANGPTL2 binds MAG to efficiently enhance oligodendrocyte differentiation
1Hongqiao International Institute of Medicine, Shanghai Tongren Hospital/Faculty of Basic Medicine, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, 280 South Chongqing Road, Shanghai, 200025, China.
Cell & Bioscience
|March 1, 2023
Summary
Angiopoietin-like protein 2 (ANGPTL2) binds myelin-associated glycoprotein (MAG) to promote oligodendrocyte differentiation and remyelination. This discovery offers potential therapeutic strategies for demyelinating diseases like multiple sclerosis.
Area of Science:
- Neuroscience
- Cell Biology
- Molecular Biology
Background:
- Oligodendrocytes are crucial for remyelination in the central nervous system.
- The influence of brain microenvironmental cues on oligodendrocyte differentiation requires further investigation.
Purpose of the Study:
- To elucidate the role of angiopoietin-like protein 2 (ANGPTL2) and its receptor in oligodendrocyte differentiation and remyelination.
Main Methods:
- In vitro studies using an HCN cell line to assess oligodendrocyte differentiation.
- Analysis of Angptl2-null and Mag-null mice in a cuprizone-induced demyelination model.
- Investigation of molecular signaling pathways involving ANGPTL2, MAG, Fyn kinase, and MYRF.
Main Results:
- Myelin-associated glycoprotein (MAG) identified as a novel receptor for ANGPTL2.
- ANGPTL2 binding to MAG promotes oligodendrocyte differentiation and enhances phosphorylation.
- Angptl2-null mice exhibit impaired myelination and remyelination, with MAG dependency confirmed.
Conclusions:
- An unexpected crosstalk between ANGPTL2 and MAG regulates oligodendrocyte differentiation.
- This pathway presents a potential therapeutic target for demyelinating disorders such as multiple sclerosis.
