Does Vitamin D play a role on Msx1 homeoprotein expression involving an endogenous antisense mRNA?

The Journal of Steroid Biochemistry and Molecular Biology
F LézotA Berdal

Abstract

Msx1 homeobox gene, a member of Msx family, has been implicated in numerous organs. Its participation was established in different events, such as morphogenetic field determinism and epithelio-mesenchymal interactions. Most of Msx1 target organs are also known for their sensitivity to Vitamin D: such as bone, tooth germ, and hair follicle. Whereas, the expression of Msx2, another member of Msx family, has been shown to be controlled by Vitamin D, no information is available for Msx1. This study aims to analyze the potential relationships between Vitamin D and Msx1 through: (1) comparative analysis of Vitamin D receptor (VDR) and Msx1 protein expression, (2) investigation of Msx1 expression in VDR null mutant mice, and (3) study of Msx1 overexpression impact on osteocalcin VDR expression in immortalized MO6-G3 odontoblasts. Results show the existence of cross-talks between Vitamin D and Msx1 regulation pathways. In odontoblastic cells, Msx1 overexpression decrease VDR expression, whereas in rickets Msx1 sense transcript expression is decreased. These cross-talks may open a new window in the analysis of rickets mineralized tissues physiopathology. In Vitamin D null mutants, the study of the natural Msx1 antisense transcript which...Continue Reading

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Citations

Mar 28, 2008·Journal of Cellular Physiology·Frédéric LézotAriane Berdal
Apr 2, 2019·Current Developments in Nutrition·Brunilda DhamoEdwin M Ongkosuwito
Oct 19, 2005·Physiological Genomics·Andreas Werner, Ariane Berdal

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