The decrease in peripheral blood CD4+ T cells following thermal injury in humans can be accounted for by a concomitant decrease in suppressor-inducer CD4+ T cells as assessed using anti-CD45R

Clinical Immunology and Immunopathology
S E CalvanoA C Antonacci

Abstract

Using single- and two-color fluorescence flow cytometry, 10 thermally injured human subjects were assessed over time for both percentages and absolute numbers of lymphocytes comprising peripheral blood lymphocyte subpopulations. The CD3+ lymphocyte percentage decreased significantly in the early postburn period, and this decrease could be accounted for entirely by a concomitant decrease in the CD4+ lymphocyte percentage. Further, the decline in CD4+ percentage was due to a specific decrease in the suppressor-inducer subset of CD4 as defined using anti-CD45R. No change in the helper-effector subset of CD4 was noted. The percentage of CD8+ lymphocytes did not change significantly at any time postburn nor did subsets of CD8 as defined using anti-CD11. Numerical changes in lymphocyte subsets were dominated by a general lymphopenia occurring on Day 4 following injury. However, suppressor-inducer (CD4+/CD45R+) T cells also decreased significantly on postburn Day 1. These results further elucidate phenotypic changes in immunoregulatory subsets following major injury and suggest a possible basis for depressed autologous mixed lymphocyte responsiveness of burn patient T cells, one of the functional immunologic defects associated with se...Continue Reading

References

Aug 1, 1981·Proceedings of the National Academy of Sciences of the United States of America·N K DamleS Gupta

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Citations

Aug 31, 2001·The American Journal of Chinese Medicine·H YamashitaY Tanno
Dec 1, 1994·Burns : Journal of the International Society for Burn Injuries·Y Barlow
Jun 1, 1989·Burns : Journal of the International Society for Burn Injuries·M ColićA Dujić
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Apr 1, 1996·The Medical Journal of Australia·G M O'KaneP Kennedy
Mar 1, 1996·American Journal of Surgery·D A Dean, K W Burchard

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