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rdf:type |
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lifeskim:mentions |
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pubmed:issue |
8
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pubmed:dateCreated |
1997-5-1
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pubmed:abstractText |
Cyclin D1 plays an important role in regulating the progression of cells through the G1 phase of the cell cycle. This gene is frequently overexpressed in human colon cancer. To address the role of cyclin D1 in growth control and tumorigenesis in this disease, we have overexpressed an antisense cyclin D1 cDNA construct in the human colon cancer cell line SW480E8, which expresses high levels of cyclin D1. The integration and expression of the antisense construct was verified by Southern and Northern blot analyses, respectively, and resulted in decreased expression of the cyclin D1 protein. This was associated with decreased levels of the Rb and p27Kip1 proteins. In addition, the hypophosphorylated form of Rb was increased in these cells. The SW480E8 antisense cyclin D1 cells displayed an increased doubling time, a decrease in saturation density, decreased plating efficiency and anchorage-independent growth, and a loss of tumorigenicity in nude mice. These findings provide direct evidence that increased expression of cyclin D1 in colon tumor cells contributes to their abnormal growth and tumorigenicity. The ability to revert the transformed phenotype of these cells with antisense cyclin D1 suggests that cyclin D1 or its associated cyclin-dependent kinase 4 may be useful targets in the therapy of colon cancer.
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pubmed:grant |
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pubmed:language |
eng
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pubmed:journal |
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pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/CDK4 protein, human,
http://linkedlifedata.com/resource/pubmed/chemical/CDK6 protein, human,
http://linkedlifedata.com/resource/pubmed/chemical/Cdk4 protein, mouse,
http://linkedlifedata.com/resource/pubmed/chemical/Cdk6 protein, mouse,
http://linkedlifedata.com/resource/pubmed/chemical/Cdkn1b protein, mouse,
http://linkedlifedata.com/resource/pubmed/chemical/Cell Cycle Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Cyclin D1,
http://linkedlifedata.com/resource/pubmed/chemical/Cyclin-Dependent Kinase 4,
http://linkedlifedata.com/resource/pubmed/chemical/Cyclin-Dependent Kinase 6,
http://linkedlifedata.com/resource/pubmed/chemical/Cyclin-Dependent Kinase Inhibitor...,
http://linkedlifedata.com/resource/pubmed/chemical/Cyclin-Dependent Kinases,
http://linkedlifedata.com/resource/pubmed/chemical/Cyclins,
http://linkedlifedata.com/resource/pubmed/chemical/DNA, Antisense,
http://linkedlifedata.com/resource/pubmed/chemical/Microtubule-Associated Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Neoplasm Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Oncogene Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Protein-Serine-Threonine Kinases,
http://linkedlifedata.com/resource/pubmed/chemical/Proto-Oncogene Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Retinoblastoma Protein,
http://linkedlifedata.com/resource/pubmed/chemical/Tumor Markers, Biological,
http://linkedlifedata.com/resource/pubmed/chemical/Tumor Suppressor Proteins
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pubmed:status |
MEDLINE
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pubmed:month |
Apr
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pubmed:issn |
0008-5472
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pubmed:author |
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pubmed:issnType |
Print
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pubmed:day |
15
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pubmed:volume |
57
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1569-74
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pubmed:dateRevised |
2009-11-19
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pubmed:meshHeading |
pubmed-meshheading:9108461-Animals,
pubmed-meshheading:9108461-Cell Cycle,
pubmed-meshheading:9108461-Cell Cycle Proteins,
pubmed-meshheading:9108461-Cell Division,
pubmed-meshheading:9108461-Colonic Neoplasms,
pubmed-meshheading:9108461-Cyclin D1,
pubmed-meshheading:9108461-Cyclin-Dependent Kinase 4,
pubmed-meshheading:9108461-Cyclin-Dependent Kinase 6,
pubmed-meshheading:9108461-Cyclin-Dependent Kinase Inhibitor p27,
pubmed-meshheading:9108461-Cyclin-Dependent Kinases,
pubmed-meshheading:9108461-Cyclins,
pubmed-meshheading:9108461-DNA, Antisense,
pubmed-meshheading:9108461-Down-Regulation,
pubmed-meshheading:9108461-Genetic Vectors,
pubmed-meshheading:9108461-Humans,
pubmed-meshheading:9108461-Mice,
pubmed-meshheading:9108461-Mice, Nude,
pubmed-meshheading:9108461-Microtubule-Associated Proteins,
pubmed-meshheading:9108461-Neoplasm Proteins,
pubmed-meshheading:9108461-Oncogene Proteins,
pubmed-meshheading:9108461-Protein-Serine-Threonine Kinases,
pubmed-meshheading:9108461-Proto-Oncogene Proteins,
pubmed-meshheading:9108461-Retinoblastoma Protein,
pubmed-meshheading:9108461-Tumor Cells, Cultured,
pubmed-meshheading:9108461-Tumor Markers, Biological,
pubmed-meshheading:9108461-Tumor Suppressor Proteins
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pubmed:year |
1997
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pubmed:articleTitle |
Antisense to cyclin D1 inhibits the growth and tumorigenicity of human colon cancer cells.
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pubmed:affiliation |
Herbert Irving Comprehensive Cancer Center, College of Physicians and Surgeons, Columbia University, New York, New York 10032, USA.
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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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