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| Content Provider | PubMed Central |
|---|---|
| Author | Risdon, G. Gaddy, J. Horie, M. Broxmeyer, H. E. |
| Abstract | Induction of alloreactivity in human adult and umbilical cord blood T cells was evaluated in mixed leukocyte culture by exposure to an allogeneic lymphoblastoid line that expresses known costimulatory molecules. Initial exposure to alloantigen-presenting cells (allo-APC) induced strong proliferative responses in both adult and cord blood T cells. However, in contrast to adult T cells, cord blood T cells exhibited little proliferation after restimulation with donor APC. Primed cord blood T cells could respond to interleukin 2 (IL-2), but unresponsiveness to alloantigen was not overcome by addition of exogenous IL-2. Unresponsiveness was long-lasting and appeared to be maintained by a combination of induction of anergy and activity of CD8+ suppressor cells. This information may contribute to use of human cord blood as an allogeneic source of transplantable stem cells. |
| Starting Page | 2413 |
| File Format | |
| ISSN | 10916490 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 6 |
| Volume Number | 92 |
| Language | English |
| Publisher Date | 1995-03-14 |
| Access Restriction | Open |
| Subject Keyword | Research in Higher Education |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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