Effects of acetate and butyrate on the expression of leptin and short-form leptin receptor in bovine and rat anterior pituitary cells

S. Yonekura, T. Senoo, Y. Kobayashi, T. Yonezawa, K. Katoh, Y. Obara

    Research output: Contribution to journalArticlepeer-review

    28 Citations (Scopus)

    Abstract

    The effects of acetate and butyrate on leptin and leptin receptor (OB-R) expression in bovine and rat anterior pituitary were examined. In bovine tissues, leptin gene expression using RT-PCR was observed in fat and anterior pituitary but not in liver. Isolated anterior pituitary cells cultured in Dulbecco's modified Eagle's medium (DMEM) for 3 days were further cultured for 48h in DMEM containing 10mM acetate or butyrate or without any fatty acids as control. Western blot analysis revealed that the abundance of leptin protein was greater in the presence of acetate and butyrate than that for the control culture. Leptin abundance was increased in a dose- and time-dependent manner in bovine anterior pituitary cells. However, leptin expression in rat cells, of which the basal level was much greater than that in ovine cells, was significantly decreased by the culture with butyrate. In addition, we studied the effects of both fatty acids on OB-R mRNA expression using semi-quantitative RT-PCR. The results showed that butyrate significantly decreased the expression in both bovine and rat cells. These findings indicate that acetate and butyrate enhance leptin expression in bovine, but not in rat anterior pituitary cells while butyrate suppresses OB-Ra expression in both rat and bovine pituitaries.

    Original languageEnglish
    Pages (from-to)165-172
    Number of pages8
    JournalGeneral and Comparative Endocrinology
    Volume133
    Issue number2
    DOIs
    Publication statusPublished - 2003 Sep 1

    ASJC Scopus subject areas

    • Animal Science and Zoology
    • Endocrinology

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