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| Content Provider | PubMed Central |
|---|---|
| Author | Morrissey, P. J. Kruisbeek, A. M. Sharrow, S. O. Singer, A. |
| Abstract | This study has assessed the possibility that anti-H-2 receptors are expressed on T-cell precursors prior to their entry into the thymus. Parental strain A thymus was transplanted into either normal or thymectomized (A x B)F1 mice which were then irradiated and reconstituted with strain A bone marrow. The cells repopulating the engrafted strain A thymus were shown to be of donor bone marrow origin. Thus, strain A thymocytes were differentiating within a syngeneic thymus, after exposure to allogeneic strain B major histocompatibility complex (MHC) determinants of the irradiated F1 host. The cells repopulating the engrafted thymus were assessed for their ability to generate alloreactive cytotoxic T lymphocyte responses and were found to be specifically tolerant to allogeneic strain B MHC determinants. This tolerance existed in the absence of detectable suppression and in the absence of detectable strain B MHC determinants intrathymically. These data are most consistent with the concept that precursor T cells express anti-MHC receptors prior to their entry into the thymus and that exposure to MHC determinants prethymically results in their functional inactivation. |
| Starting Page | 2003 |
| 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 | 79 |
| Language | English |
| Publisher Date | 1982-03-01 |
| Access Restriction | Open |
| Subject Keyword | Research in Higher Education |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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