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Peripheral Blood Lymphocyte Adhesion Molecule Deployment in the Immune Response
Author(s) -
PALLIS M.,
ROBINS R. A.,
POWELL R. J.
Publication year - 1996
Publication title -
scandinavian journal of immunology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.934
H-Index - 88
eISSN - 1365-3083
pISSN - 0300-9475
DOI - 10.1046/j.1365-3083.1996.d01-44.x
Subject(s) - cd8 , cd11a , immune system , immunology , lymphocyte , cell adhesion molecule , il 2 receptor , medicine , biology , microbiology and biotechnology , t cell , cd18 , integrin alpha m
Using precise and reproducible flow cytometric measurements, the surface densities of the cell adhesion molecules (CAMs) CD29, CD2 and CD11a were studied on the CAMhigh (primed) subsets of peripheral blood CD4 + and CD8 + lymphocytes in 56 healthy subjects; 18 patients with acute bacterial infections, 19 with acute viral infections and 18 with chronic inflammatory conditions. By Mann–Whitney analysis, with significant P values adjusted for multiple comparisons to <0.0007, patients with viral infections were found to have increased CD11a on CAMhigh cells (an increase in median values of 13.7% for CD4 + lymphocytes and 15.8% for CD8 + lymphocytes); patients with chronic conditions have increased CD29 on CD8 + CAMhigh lymphocytes (an increase in the median of 19%); and patients with bacterial infections have increased CD2 on CD8 + CAMhigh cells (an increase in the median of 8%). There were marked individual increases in CD29 density: eight (15%) patients had CD29 gender‐adjusted density on CD4 + cells greater than the control mean + 3 standard deviations (SD). CD29 densities on CD8 + cells were elevated to > control mean + 3 SD in 12 (22%) patients. By multiple regression analysis CD11a density on CD8 + and CD4 + cells and CD2 density on CD4 + cells were found to be associated with HLA‐DR expression, but not with CD25 expression. Using standardized intercepts the authors demonstrated that there are very few circulating CD11ahighCD25 + cells, suggesting that these are rapidly extravasated. This study demonstrates that in disease, lymphocyte adhesion molecules are not deployed in concert and there are characteristic deployment patterns for different types of immune response.