PMID- 8443120 OWN - NLM STAT- MEDLINE DCOM- 19930405 LR - 20190512 IS - 0953-8178 (Print) IS - 0953-8178 (Linking) VI - 5 IP - 1 DP - 1993 Jan TI - Self-restricted primary human histocompatibility leukocyte antigen (HLA)-specific cytotoxic T lymphocytes. PG - 103-7 AB - The specificity of self MHC-restricted T cells responding to peptide fragments of processed antigen has been well characterized. However, the means by which alloreactive T lymphocytes recognize MHC alloantigen remain poorly understood. We now provide evidence that the recognition of class I human leukocyte antigen (HLA) alloantigen by alloreactive cytotoxic T lymphocytes (CTL) induced in primary mixed lymphocyte cultures is class I HLA-restricted to a great extent. This is shown by the 'split-well' limiting dilution assay using third party target cells bearing a stimulating class I HLA alloantigen either in (i) the presence or (ii) the absence of class I HLA antigen(s) which is shared with the responder. Alloreactive CTL were found which recognize stimulator class I HLA alloantigen on the first but not on the second type of target cells. The results show that, in contrast to the traditional view, a large proportion of the alloreactive CTL against class I HLA alloantigen generated in primary mixed lymphocyte cultures is self class I HLA-restricted. FAU - Breur-Vriesendorp, B S AU - Breur-Vriesendorp BS AD - Central Laboratory of the Netherlands Red Cross Blood Transfusion Service, Amsterdam. FAU - Ivanyi, P AU - Ivanyi P LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Int Immunol JT - International immunology JID - 8916182 RN - 0 (HLA-A Antigens) RN - 0 (HLA-B Antigens) RN - 0 (Isoantigens) SB - IM MH - Cells, Cultured MH - Cross Reactions MH - HLA-A Antigens/*immunology MH - HLA-B Antigens/*immunology MH - Humans MH - Immunity, Cellular MH - Isoantigens/immunology MH - Lymphocyte Culture Test, Mixed MH - T-Lymphocytes, Cytotoxic/*immunology EDAT- 1993/01/01 00:00 MHDA- 1993/01/01 00:01 CRDT- 1993/01/01 00:00 PHST- 1993/01/01 00:00 [pubmed] PHST- 1993/01/01 00:01 [medline] PHST- 1993/01/01 00:00 [entrez] AID - 10.1093/intimm/5.1.103 [doi] PST - ppublish SO - Int Immunol. 1993 Jan;5(1):103-7. doi: 10.1093/intimm/5.1.103.