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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Spillare, E. A. Stoner, G. D. Jiang, W. Weinstein, I. B. Okamoto, A. Harris, C. C. Kim, S. J. |
| Description | Author Affiliation: Okamoto A ( Laboratory of Human Carcinogenesis, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892.); |
| Abstract | Cyclin D1 has been implicated in G1 cell cycle progression and is frequently amplified, overtranscribed, and oversynthesized in human tumors, including esophageal carcinomas. To further address the role of cyclin D1 in cell cycle control and tumorigenesis, we have stably transfected the human cyclin D1 in the nontumorigenic esophageal epithelial cell line HET-1A. These transfected cells, which express increased amounts of cyclin D1, have enhanced colony-forming efficiency and saturation density and are resistant to growth inhibition by TGF-beta 1 compared with the parental cell line or a control vector cell clone. The clones which express increased amounts of cyclin D1 exhibited a decrease in the amount of TGF-beta type II receptor, indicating a plausible mechanism for their diminished response to TGF-beta 1. Therefore, deregulated expression of the cyclin D1 gene can modulate the negative growth factor pathway of TGF-beta 1 and may disturb the control of epithelial cell proliferation in esophageal carcinogenesis. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 24 |
| Volume Number | 91 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 1994-12-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Cyclin-Dependent Kinases Cyclins Metabolism Oncogene Proteins Proto-Oncogene Proteins Receptors, Transforming Growth Factor Beta Transforming Growth Factor Beta Pharmacology Cell Cycle Cell Line Cyclin D1 Cyclin-Dependent Kinase 4 Epithelial Cells Esophagus Cytology Gene Expression In Vitro Techniques Proliferating Cell Nuclear Antigen Protein-Serine-Threonine Kinases RNA, Messenger Genetics Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, P.H.S. Multidisciplinary |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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