title: LFA1 expression in HIV infection.
abstract: The expression of the adhesion molecule LFA1 was investigated in mononuclear cells from 200 samples of peripheral blood obtained from asymptomatic HIV-infected individuals and AIDS patients. The numbers and percentages of LFAI-positive cells were established by indirect immunofluorescence. A significant decrease in the number of labelled cells was observed (mean percentage 68.9) while 100% of the cells were positive in controls. These data suggest that LFA1-mediated cell-cell cooperation might be impaired in HIV infection, adding to the immune deficiency related to the disappearance of CD4+ cells.
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000276:immunology*; D000945:Antigens, Differentiation, T-Lymphocyte / Q000032:analysis; D000954:Antigens, Surface / Q000032:analysis*; D002450:Cell Communication; D006801:Humans; D016169:Lymphocyte Function-Associated Antigen-1; D013602:T-Lymphocytes, Cytotoxic / Q000276:immunology
chemical_list: D000945:Antigens, Differentiation, T-Lymphocyte; D000954:Antigens, Surface; D016169:Lymphocyte Function-Associated Antigen-1