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Retinoids are known inhibitors of epithelial cell proliferation. Previous studies indicate that Krüppel-like factor 5 (KLF5) is a pro-proliferative transcription factor. Here, we examined the effect of all-trans retinoid acid (ATRA) on proliferation of the intestinal epithelial cell line, IEC6. Treatment of IEC6 cells with ATRA inhibited their proliferation due to G 1 cell cycle arrest. This...
Members of the claudin family play important roles in the formation of tight junctions in the kidneys, liver and intestine. Claudin-19 (Cldn19), a newly identified member of this family, is highly expressed in the kidney of the mouse. To have a better understanding on mouse claudin-19 gene expression, a 0.9-kb DNA fragment containing the 5′-flanking region of the Cldn19 gene was isolated. DNA sequence...
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