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Quantitative real-time PCR for the measurement of 11beta-HSD1 and 11beta-HSD2 mRNA levels in tissues of healthy dogs


Sieber-Ruckstuhl, N S; Meli, M L; Boretti, F S; Gönczi, E; Lutz, H; Reusch, C E (2007). Quantitative real-time PCR for the measurement of 11beta-HSD1 and 11beta-HSD2 mRNA levels in tissues of healthy dogs. Hormone and Metabolic Research = Hormon- und Stoffwechselforschung = Hormones et métabolisme, 39(8):548-554.

Abstract

The 11beta-hydroxysteroid dehydrogenase (11beta-HSD) exists in two isoforms, 11beta-HSD1 and 11beta-HSD2. 11beta-HSD1 generates active cortisol from cortisone and appears to be involved in insulin resistant states. 11beta-HSD2 protects the mineralocorticoid receptor from inappropriate activation by glucocorticoids and is important to prevent sodium retention and hypertension. The purposes of the present study were to develop two real-time PCR assays to assess 11beta-HSD1 and 11beta-HSD2 mRNA expression and to evaluate the tissue distribution of the two isoforms in dogs. Thirteen different tissues of 10 healthy dogs were evaluated. Both real-time PCR assays were highly specific, sensitive and reproducible. Highest 11beta-HSD1 mRNA expression was seen in liver, lung, and renal medulla; highest 11beta-HSD2 mRNA expression in renal cortex, adrenal gland, and renal medulla. Higher 11beta-HSD1 than 11beta-HSD2 mRNA levels were found in all tissues except adrenal gland, colon, and rectum. Our results demonstrate that the basic tissue distribution of 11beta-HSD1 and 11beta-HSD2 in dogs corresponds to that in humans and rodents. In a next step 11beta-HSD1 and 11beta-HSD2 expression should be assessed in diseases like obesity, hypercortisolism, and hypertension to improve our knowledge about 11beta-HSD activity, to evaluate the dog as a model for humans and to potentially find new therapeutic options.

The 11beta-hydroxysteroid dehydrogenase (11beta-HSD) exists in two isoforms, 11beta-HSD1 and 11beta-HSD2. 11beta-HSD1 generates active cortisol from cortisone and appears to be involved in insulin resistant states. 11beta-HSD2 protects the mineralocorticoid receptor from inappropriate activation by glucocorticoids and is important to prevent sodium retention and hypertension. The purposes of the present study were to develop two real-time PCR assays to assess 11beta-HSD1 and 11beta-HSD2 mRNA expression and to evaluate the tissue distribution of the two isoforms in dogs. Thirteen different tissues of 10 healthy dogs were evaluated. Both real-time PCR assays were highly specific, sensitive and reproducible. Highest 11beta-HSD1 mRNA expression was seen in liver, lung, and renal medulla; highest 11beta-HSD2 mRNA expression in renal cortex, adrenal gland, and renal medulla. Higher 11beta-HSD1 than 11beta-HSD2 mRNA levels were found in all tissues except adrenal gland, colon, and rectum. Our results demonstrate that the basic tissue distribution of 11beta-HSD1 and 11beta-HSD2 in dogs corresponds to that in humans and rodents. In a next step 11beta-HSD1 and 11beta-HSD2 expression should be assessed in diseases like obesity, hypercortisolism, and hypertension to improve our knowledge about 11beta-HSD activity, to evaluate the dog as a model for humans and to potentially find new therapeutic options.

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11 citations in Web of Science®
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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:05 Vetsuisse Faculty > Veterinary Clinic > Department of Farm Animals
Dewey Decimal Classification:570 Life sciences; biology
630 Agriculture
Language:English
Date:2007
Deposited On:12 Aug 2008 10:15
Last Modified:05 Apr 2016 12:25
Publisher:Thieme
ISSN:0018-5043
Publisher DOI:10.1055/s-2007-985142
PubMed ID:17712718
Permanent URL: http://doi.org/10.5167/uzh-3013

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