Abstract
The mechanisms regulating differentiation of oligodendrocyte (OLG) progenitor cells (OPCs) into mature OLGs are key to understanding myelination and remyelination. Signaling via the retinoid X receptor γ (RXR-γ) has been shown to be a positive regulator of OPC differentiation. However, the nuclear receptor (NR) binding partner of RXR-γ has not been established. In this study we show that RXR-γ binds to several NRs in OPCs and OLGs, one of which is vitamin D receptor (VDR). Using pharmacological and knockdown approaches we show that RXR-VDR signaling induces OPC differentiation and that VDR agonist vitamin D enhances OPC differentiation. We also show expression of VDR in OLG lineage cells in multiple sclerosis. Our data reveal a role for vitamin D in the regenerative component of demyelinating disease and identify a new target for remyelination medicines.
Original language | English |
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Pages (from-to) | 975-85 |
Journal | The Journal of cell biology |
Volume | 211 |
Issue number | 5 |
DOIs | |
Publication status | Published - 07 Dec 2015 |
Externally published | Yes |
Bibliographical note
© 2015 de la Fuente et al.Keywords
- Adult
- Aged
- Aged, 80 and over
- Animals
- Cell Differentiation
- Cell Lineage
- Female
- Gene Expression Regulation
- Humans
- Male
- Middle Aged
- Multiple Sclerosis/metabolism
- Myelin Sheath/chemistry
- Oligodendroglia/cytology
- Protein Binding
- Protein Multimerization
- Rats
- Rats, Sprague-Dawley
- Receptors, Calcitriol/metabolism
- Retinoid X Receptor gamma/metabolism
- Signal Transduction
- Stem Cells/cytology
- Vitamin D/metabolism