PMID- 1940794 OWN - NLM STAT- MEDLINE DCOM- 19911213 LR - 20190508 IS - 0022-1007 (Print) IS - 1540-9538 (Electronic) IS - 0022-1007 (Linking) VI - 174 IP - 5 DP - 1991 Nov 1 TI - T cell receptor V-segment frequencies in peripheral blood T cells correlate with human leukocyte antigen type. PG - 1139-46 AB - We compared T cell receptor (TCR) V-segment frequencies in human leukocyte antigen (HLA) identical siblings to sibling pairs who differ at one or both HLA haplotypes using four V beta-specific and one V alpha-specific monoclonal antibody. In every one of nine families HLA-identical sibs had the most similar patterns of V-segment frequencies in their peripheral blood, whereas totally mismatched sibs were, in general, the most dissimilar; HLA haploidentical sibs tended to be intermediate between the two groups. The degree of similarity among HLA-identical sibs was comparable to that observed among three pairs of identical twins suggesting that HLA is the major genetic component influencing TCR V-segment frequency. Consistent with this observation, it was found that the frequency of T cells expressing particular V beta segments was skewed towards either CD4+ or CD8+ cells indicating that T cells expressing some V beta genes may be positively selected primarily by class I or class II major histocompatibility complex proteins. Finally, it was observed that individuals who express the HLA class I specificity, B38, tend to express high levels of V alpha 2.3+ cells among their CD8+ T cells. These observations represent definitive proof that human V-segment frequencies are profoundly influenced by the HLA complex. FAU - Gulwani-Akolkar, B AU - Gulwani-Akolkar B AD - Department of Medicine, North Shore University Hospital, Manhasset, New York. FAU - Posnett, D N AU - Posnett DN FAU - Janson, C H AU - Janson CH FAU - Grunewald, J AU - Grunewald J FAU - Wigzell, H AU - Wigzell H FAU - Akolkar, P AU - Akolkar P FAU - Gregersen, P K AU - Gregersen PK FAU - Silver, J AU - Silver J LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - J Exp Med JT - The Journal of experimental medicine JID - 2985109R RN - 0 (Antibodies, Monoclonal) RN - 0 (HLA Antigens) RN - 0 (Receptors, Antigen, T-Cell) SB - IM MH - Alleles MH - Antibodies, Monoclonal/immunology MH - CD4-CD8 Ratio MH - HLA Antigens/*genetics MH - Haplotypes MH - Humans MH - Receptors, Antigen, T-Cell/*analysis MH - T-Lymphocytes/*immunology PMC - PMC2118988 EDAT- 1991/11/01 00:00 MHDA- 1991/11/01 00:01 PMCR- 1992/05/01 CRDT- 1991/11/01 00:00 PHST- 1991/11/01 00:00 [pubmed] PHST- 1991/11/01 00:01 [medline] PHST- 1991/11/01 00:00 [entrez] PHST- 1992/05/01 00:00 [pmc-release] AID - 92044306 [pii] AID - 10.1084/jem.174.5.1139 [doi] PST - ppublish SO - J Exp Med. 1991 Nov 1;174(5):1139-46. doi: 10.1084/jem.174.5.1139.