11β-Hydroxysteroid Dehydrogenase Activity in Human Aortic Smooth Muscle Cells

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Abstract

11β-Hydroxysteroid dehydrogenases (11β-HSD) interconvert cortisol, the physiological glucocorticoid, and its inactive metabolite cortisone in humans. There are two isoforms. The type 1 isoform (11β-HSD1) catalyzes both 11β-dehydrogenation (cortisol to cortisone) and the reverse oxoreduction (cortisone to cortisol), but the type 2 isoform (11β-HSD2) catalyzes only 11β-dehydrogenation. The diminished dehydrogenase activity has been demonstrated in resistance vessels of genetically hypertensive rats. However, the isoform(s) that plays a significant role in conferring the dehydrogenase activity on vasculature has not been determined. We investigated 11β-HSD activities in human vascular smooth muscle cells by manipulating 11β-HSD expressions with antisense oligonucleotides. The results showed that 11β-HSD2 dominates functioning in the dehydrogenase mode in these cells. This indicates that impairment of 11β-HSD2 activity in vascular wall may be related to the pathogenesis of hypertension. (Hypertens Res 2001; 24: 33-37)

Journal

  • Hypertension Research

    Hypertension Research 24(1), 33-37, 2001-01-01

    The Japanese Society of Hypertension

References:  16

Cited by:  2

Codes

  • NII Article ID (NAID)
    10008741934
  • NII NACSIS-CAT ID (NCID)
    AA10847079
  • Text Lang
    ENG
  • Article Type
    Journal Article
  • ISSN
    09169636
  • Data Source
    CJP  CJPref  J-STAGE 
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