PMID- 6242346 OWN - NLM STAT- MEDLINE DCOM- 19851029 LR - 20141120 IS - 0301-0457 (Print) IS - 0301-0457 (Linking) IP - 72 DP - 1983 May TI - Autorosette forming cells: phenotypic analysis, specificity and role in the autologous mixed lymphocyte reaction. PG - 89-94 AB - The phenotype of autorosette forming cells (A-RFC) in the peripheral blood of normal subjects was analyzed. Using a fluorescent technique in which the rosetting cells are labeled with different monoclonal antibodies directed against various cell surface antigens, we demonstrated that A-RFC are T cells, the majority of which belong to the helper/inducer subset. Nevertheless, about 10% of the A-RFC bear the Leu 2a antigens, which are specific for cytotoxic/suppressor T cells. On the other hand, no autorosettes were identified by OKT6 or anti-DR antibodies. When autologous and allogeneic red blood cells were added simultaneously to lymphocytes, 78% mixed rosettes were formed, suggesting a lack of specificity in autorosette formation. A functional role for A-RFC in the autologous mixed lymphocyte reaction (A-MLR) is demonstrated by the fact that the removal of A-RFC from the responder population abrogated the proliferative response in A-MLR. Therefore, despite their non restriction, A-RFC may represent an autoreactive T cell subset. FAU - Fournier, C AU - Fournier C FAU - Nalet, V AU - Nalet V FAU - Charreire, J AU - Charreire J LA - eng PT - Journal Article PL - Germany TA - Behring Inst Mitt JT - Behring Institute Mitteilungen JID - 0367532 RN - 0 (Antibodies, Monoclonal) RN - 0 (Autoantigens) RN - 0 (Isoantigens) SB - IM MH - Antibodies, Monoclonal/immunology MH - Autoantigens/immunology MH - Erythrocytes/immunology MH - Humans MH - In Vitro Techniques MH - Isoantigens/immunology MH - Lymphocyte Activation MH - *Lymphocyte Culture Test, Mixed MH - *Rosette Formation MH - T-Lymphocytes/classification/*immunology EDAT- 1983/05/01 00:00 MHDA- 1983/05/01 00:01 CRDT- 1983/05/01 00:00 PHST- 1983/05/01 00:00 [pubmed] PHST- 1983/05/01 00:01 [medline] PHST- 1983/05/01 00:00 [entrez] PST - ppublish SO - Behring Inst Mitt. 1983 May;(72):89-94.