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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Goronzy, Jörg J. Weyand, Cornelia M. Widmann, Thomas Zimmer, Julia Schönland, Stefan O. Bryl, Ewa Lopez, Consuelo |
| Description | Author Affiliation: Schönland SO ( Department of Medicine and Immunology, Mayo Clinic and Foundation, Rochester, MN 55905, USA.); |
| Abstract | In rheumatoid arthritis, peripheral blood T cells have age-inappropriate telomeric erosion. We examined whether HLA-DRB1*04 alleles, the major susceptibility genes for this disease, confer risk for T cell senescence. In healthy individuals, HLA-DRB1*04 alleles were associated with excessive loss of telomeres in CD4+ T cells. Accelerated telomeric erosion occurred during the first two decades of life and was followed by reduced homeostatic T cell proliferation during adulthood. Premature telomeric loss also affected granulocytes, suggesting that the hematopoietic stem cell is the primary target. Telomeric repair mechanisms were intact in HLA-DRB1*04+ donors. We propose that HLA-DRB1*04 alleles or genes in linkage disequilibrium regulate stem cell replication and contribute to the accumulation of senescent and autoreactive T cells in rheumatoid arthritis. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 23 |
| Volume Number | 100 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 2003-11-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Arthritis, Rheumatoid Genetics Lymphocytes Cytology Myeloid Cells Telomere Alleles Antigens, CD28 Biosynthesis Antigens, CD3 CD4-Positive T-Lymphocytes Metabolism Cell Aging Cell Division Cell Lineage DNA Flow Cytometry Genotype Granulocytes HLA-DR Antigens HLA-DRB1 Chains Immunologic Memory Linkage Disequilibrium Models, Biological Ultrastructure Time Factors 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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