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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Maue, Alexander C. Eaton, Sheri M. Swain, Susan L. Haynes, Laura |
| Description | Country affiliation: United States Author Affiliation: Eaton SM ( Trudeau Institute, Saranac Lake, NY 12983, USA.) |
| Abstract | Understanding how aging impacts the function of memory CD4 T cells is critical for designing effective vaccines. Our studies show that immunological memory generated during youth functions well into old age, whereas that generated later in life functions poorly. This is the result of declines in the function of naive CD4 T cells from aged individuals and contributes to reduced efficacy of vaccines in the elderly. To begin to identify the cause of this defect, we examined the function of memory T cells generated from bone marrow precursor cells (BMPC) from young or aged mice in young hosts. In two different models, memory cells derived from young and aged BMPC exhibit good ex vivo and in vivo function. Importantly, memory CD4 T cells generated from aged BMPC exhibit potent cognate helper function for humoral responses, which are critical for effective immunization. These results indicate that there are no apparent age-related intrinsic defects in BMPC with regards to generation of functional memory T cells. |
| ISSN | 00221767 |
| e-ISSN | 15506606 |
| Journal | The Journal of Immunology |
| Issue Number | 7 |
| Volume Number | 181 |
| Language | English |
| Publisher | The American Association of Immunologists |
| Publisher Date | 2008-10-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Aging Immunology Bone Marrow Cells Cd4-positive T-lymphocytes Cell Differentiation Immunologic Memory Stem Cells Genetics Animals Cytology Metabolism Bone Marrow Transplantation Cell Line Cells, Cultured Immunophenotyping Mice Mice, Congenic Mice, Inbred C57bl Mice, Transgenic Radiation Chimera Receptors, Antigen, T-cell Physiology G0 Phase Stem Cell Transplantation Comparative Study Research Support, N.i.h., Extramural Discipline Immunology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Immunology and Allergy Immunology |
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