Retinoids and renal development.
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| Abstract |
Although it has long been appreciated that retinoids play an essential role in kidney organogenesis, it has only recently been recognized that even mild fetal vitamin A deficiency syndromes can result in a reduction in nephron number. Recent studies have also begun to define the cellular and molecular events associated with retinoid actions in the fetal kidney and have demonstrated the essential function of retinoids in branching growth of the ureteric bud. Importantly, characterization of the renal developmental effects of RAR alpha/beta 2 double homozygous mice combined with metanephric organ culture studies have together shown that one essential function of retinoid action in the developing kidney is the maintenance of c-ret expression in the tips of the ureteric bud. However, many other potential retinoid target genes including midkine, sonic hedgehog, Hox d-11, matrix metalloproteinases, and tissue inhibitors of metalloproteinases appear to play important roles in renal development and might be important downstream mediators of retinoid effects in the developing kidney. It can, therefore, be anticipated that important new insights into fetal kidney development will be forthcoming in the near future, as the essential target genes affected by retinoid signal transduction are progressively elucidated.
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| Authors | C R Burrow |
| Journal | Experimental nephrology (Exp Nephrol) 2000 Jul-Oct Vol. 8 Issue 4-5 Pg. 219-25 ISSN: 1018-7782 [Print] Switzerland |
| PMID | 10940720 (Publication Type: Journal Article, Review) |
| Copyright | Copyright 2000 S. Karger AG, Basel |
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