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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
1994-4-26
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pubmed:abstractText |
The effect of 1,25-dihydroxyvitamin D3 [1,25-(OH)2D3], or calcitriol, on the proliferation and differentiation of Caco-2 cells was studied. Vitamin D receptor mRNA was detected in both pre- and postconfluent cells, and its abundance was unchanged with time and in response to calcitriol. 1,25-(OH)2D3-binding activity increased during differentiation, but there was no difference in binding between 1,25-(OH)2D3-treated and control cells. 1,25-(OH)2D3 caused a dose-dependent reduction in proliferation, as assessed by [3H]thymidine incorporation and DNA content. 1,25-(OH)2D3 significantly enhanced the normal rise in alkaline phosphatase activity during differentiation and increased alkaline phosphatase mRNA abundance. In contrast, 1,25-(OH)2D3 inhibited the normal rise in sucrase-isomaltase activity and the corresponding mRNA level, although the inhibition occurred after the initial period of cell differentiation (> 10 days postplating). Morphological analysis demonstrated that by day 12 postplating, 1,25-(OH)2D3 increased the mean dome diameter and microvillus length and density. Although 1,25-(OH)2D3 decreases the proliferation of Caco-2 cells and enhances certain parameters of differentiation, not all brush-border hydrolases respond in a similar fashion, making it necessary to interpret with caution their individual use as markers of differentiation.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
AIM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Calcitriol,
http://linkedlifedata.com/resource/pubmed/chemical/Culture Media,
http://linkedlifedata.com/resource/pubmed/chemical/Proto-Oncogene Proteins c-myc,
http://linkedlifedata.com/resource/pubmed/chemical/RNA, Messenger,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Calcitriol
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pubmed:status |
MEDLINE
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pubmed:month |
Apr
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pubmed:issn |
0013-7227
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
134
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1710-7
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:8137734-Calcitriol,
pubmed-meshheading:8137734-Cell Differentiation,
pubmed-meshheading:8137734-Cell Division,
pubmed-meshheading:8137734-Colonic Neoplasms,
pubmed-meshheading:8137734-Culture Media,
pubmed-meshheading:8137734-Dose-Response Relationship, Drug,
pubmed-meshheading:8137734-Humans,
pubmed-meshheading:8137734-Microscopy, Electron,
pubmed-meshheading:8137734-Microvilli,
pubmed-meshheading:8137734-Proto-Oncogene Proteins c-myc,
pubmed-meshheading:8137734-RNA, Messenger,
pubmed-meshheading:8137734-Receptors, Calcitriol,
pubmed-meshheading:8137734-Tumor Cells, Cultured
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pubmed:year |
1994
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pubmed:articleTitle |
Effects of 1,25-dihydroxyvitamin D3 on proliferation and differentiation of Caco-2 cells.
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pubmed:affiliation |
Section of Digestive and Liver Diseases, University of Illinois at Chicago 60612.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
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