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  • Title: The reappearance of 10 differentiation antigens on peripheral blood lymphocytes after allogeneic bone marrow transplantation.
    Author: Leino L, Lilius EM, Nikoskelainen J, Pelliniemi TT, Rajamäki A.
    Journal: Bone Marrow Transplant; 1991 Nov; 8(5):339-44. PubMed ID: 1768967.
    Abstract:
    Ten monoclonal antibodies and flow cytometry were applied to characterize the recovery of lymphocyte subsets in peripheral blood after allogeneic bone marrow transplantation (BMT). Ten patients were first followed for 150 days (short-term survey) and then analysed 2 years after BMT on average (long-term analysis). Eight of the 10 recipients showed increased relative and absolute numbers of CD8+ cells and reduced numbers of CD4+ cells resulting in an inverse helper/suppressor ratio. In these eight patients the CD8+ cell predominance was long-lasting and still detectable in the long-term analysis. Two patients had a normal helper/suppressor ratio throughout the study but otherwise a similar reconstitution. Despite the slow recovery of CD4+ cells, CD4+ Leu8- and CD4+ CD45RA- helper subsets were in a normal range already on day 30 and their proportions stayed higher than those of CD4+ Leu8+ and CD4+ CD45RA+ helper cells for the whole short-term survey. The number of activated suppressor cells (CD8+ HLA-DR+) increased markedly after BMT. Similarly, in eight patients high numbers of cytotoxic CD8+ CD57+ cells were found from day 50 onwards. An early and sharp rise of NK cells (CD16+, CD56+) was observed in all recipients, and seven recipients also showed an early increase in CD20+ B cells. Later on, normal or slightly elevated numbers of these cells occurred.
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