Source:http://linkedlifedata.com/resource/pubmed/id/18313834
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1-2
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pubmed:dateCreated |
2008-3-7
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pubmed:abstractText |
The renal enzyme 25-hydroxyvitamin D 1alpha-hydroxylase (CYP27B1), responsible for the synthesis of circulating. 1,25-dihydroxyvitamin D (1,25D), is also expressed in a number of non-renal tissues. The regulation of CYP27B1 expression by the short flanking promoter outside the kidney is, however, largely unknown. We have used a transgenic mice expressing the 1.5kb promoter of the human CYP27B1 gene fused to the firefly luciferase gene in order to investigate tissue-specific CYP27B1 expression. These transgenic animals demonstrated co-localised luciferase and endogenous CYP27B1 expression in kidney proximal convoluted tubular cells. Strong co-expression of luciferase and CYP27B1 also occurred in neurons and Purkinje cells of the cerebellum and in Leydig and Sertoli cells of the testes. Other tissues to exhibit CYP27B1-promoter directed luciferase activity included lung, prostate, trabecular bone and jejunum as well as the choroid epithelium. The tissue specific changes in luciferase activity were age-related. These findings demonstrate that the proximal 1.5kb 5' flanking region of the CYP27B1 gene directs the expression of CYP27B1 in a number of known and novel tissues in a specific manner.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Mar
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pubmed:issn |
0303-7207
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
26
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pubmed:volume |
285
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1-9
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pubmed:dateRevised |
2008-11-21
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pubmed:meshHeading |
pubmed-meshheading:18313834-25-Hydroxyvitamin D3 1-alpha-Hydroxylase,
pubmed-meshheading:18313834-5' Flanking Region,
pubmed-meshheading:18313834-Animals,
pubmed-meshheading:18313834-Gene Expression Regulation, Enzymologic,
pubmed-meshheading:18313834-Humans,
pubmed-meshheading:18313834-Male,
pubmed-meshheading:18313834-Mice,
pubmed-meshheading:18313834-Mice, Transgenic,
pubmed-meshheading:18313834-Promoter Regions, Genetic,
pubmed-meshheading:18313834-Recombinant Fusion Proteins,
pubmed-meshheading:18313834-Tissue Distribution,
pubmed-meshheading:18313834-Transgenes
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pubmed:year |
2008
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pubmed:articleTitle |
Co-expression of CYP27B1 enzyme with the 1.5kb CYP27B1 promoter-luciferase transgene in the mouse.
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pubmed:affiliation |
Endocrine Research Laboratory, Hanson Institute, Frome Road, Adelaide 5000, SA, Australia. paul.anderson@imvs.sa.gov.au
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pubmed:publicationType |
Journal Article
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