Journal
INTERNATIONAL JOURNAL OF MOLECULAR MEDICINE
Volume 40, Issue 3, Pages 661-672Publisher
SPANDIDOS PUBL LTD
DOI: 10.3892/ijmm.2017.3051
Keywords
retinoic acid; Wilms' tumor 1; aldehyde dehydrogenase 1 family; member A1; 293 cells; histone deacetylase inhibitors
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Funding
- National Natural Science Foundation of China [31100943]
- Shenzhen City Science and Technology Project [201102136]
- Shenzhen Nanshan Science and Technology Research Funds [2010012, 2014009]
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All-trans retinoic acid (atRA), which is mainly generated endogenously via two steps of oxidation from vitamin A (retinol), plays an indispensible role in the development of the kidney and many other organs. Enzymes that catalyze the oxidation of retinol to generate atRA, including aldehyde dehydrogenase 1 family (ALDH1)A1, ALDH1A2 and ALDH1A3, exhibit complex expression patterns at different stages of renal development. However, molecular triggers that control these differential expression levels are poorly understood. In this study, we provide in vitro evidence to demonstrate that Wilms' tumor 1 (WT1) negatively regulates the expression of the atRA synthetic enzymes, ALDH1A1, ALDH1A2 and ALDH1A3, in the 293 cell line, leading to significant blockage of atRA production. Furthermore, we demonstrate that the suppression of ALDH1A1 by WT1 can be markedly attenuated by histone deacetylase inhibitors (HDACis). Taken together, we provide evidence to indicate that WT1 and HDACs are strong regulators of endogenous retinoic acid synthetic enzymes in 293 cells, indicating that they may be involved in the regulation of atRA synthesis.
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