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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Palais, Robert A. Wang, Lai Y. Elenitoba-johnson, Kojo S. J. Bohling, Sandra D. Tripp, Sheryl Buckstein, Rena Perkins, Sherrie L. Perez-ordonez, Bayardo Lim, Megan S. Abbott, Robert T. Lin, Zhaosheng Shami, Paul J. Coupland, Robert W. Dube, Ian D. Jenson, Stephen D. |
| Description | Author Affiliation: Elenitoba-Johnson KS ( Department of Pathology, Associated Regional and University Pathologists Institute for Clinical and Experimental Pathology, University of Utah, Salt Lake City, UT 84132, USA. kojo.elenitobaj@path.utah.edu); |
| Abstract | Follicular lymphoma (FL) is the most common form of low-grade non-Hodgkin's lymphoma. Transformation to diffuse large B cell lymphoma (DLBCL) is an important cause of mortality. Using cDNA microarray analysis we identified 113 transformation-associated genes whose expression differed consistently between serial clonally related samples of FL and DLBCL occurring within the same individual. Quantitative RT-PCR validated the microarray results and assigned blinded independent group of 20 FLs, 20 DLBCLs, and five transformed lymphoma-derived cell lines with 100%, 70%, and 100% accuracy, respectively. Notably, growth factor cytokine receptors and p38beta-mitogen-activated protein kinase (MAPK) were differentially expressed in the DLBCLs. Immunohistochemistry of another blinded set of samples demonstrated expression of phosphorylated p38MAPK in 6/6 DLBCLs and 1/5 FLs, but not in benign germinal centers. SB203580 an inhibitor of p38MAPK specifically induced caspase-3-mediated apoptosis in t(14;18)+/p38MAPK+-transformed FL-derived cell lines. Lymphoma growth was also inhibited in SB203580-treated NOD-SCID mice. Our results implicate p38MAPK dysregulation in FL transformation and suggest that molecular targeting of specific elements within this pathway should be explored for transformed FL therapy. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 12 |
| Volume Number | 100 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 2003-06-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Lymphoma, Follicular Drug Therapy Enzymology Mitogen-Activated Protein Kinases Metabolism Apoptosis Drug Effects Cell Transformation, Neoplastic Chromosomes, Human, Pair 14 Genetics Chromosomes, Human, Pair 18 Enzyme Inhibitors Pharmacology Gene Expression Profiling Imidazoles Lymphoma, B-Cell Lymphoma, Large B-Cell, Diffuse MAP Kinase Signaling System Antagonists & Inhibitors Oligonucleotide Array Sequence Analysis Pyridines Receptors, Cytokine Receptors, Growth Factor Translocation, Genetic Tumor Cells, Cultured P38 Mitogen-Activated Protein Kinases 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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