title: T-cell imbalances and NK activity in varicella-zoster virus infections.
abstract: Samples of peripheral blood lymphocytes (PBMC) were serially obtained from 30 patients with herpes zoster (HZ) and 10 patients with chickenpox (CP). Cells were assayed for NK-cell function and for the expression of surface membrane antigens which identify T-cell and NK-cell subsets. During the acute phase of disease (less than 7 days from onset), PBMC from patients with HZ had low proportions of T-helper (CD 4+) cells and a large number of T-suppressor (CD 8+) cells, resulting in a low T-helper/T-suppressor ratio. There was an increased percentage of nonspecific suppressor cells (GD 8+-CD 11+ cells) and increased expression of HLA-DR determinants on both CD 8+ and CD 4+ cells. The NK activity was depressed with no concomitant decrease in NK cells (CD 16+ or Leu 7+ cells). In the early convalescing phase of disease (8-14 days), there was a significant increase in CD 16+ cells and increased expression of HLA-DR on these cells, correlating with increased NK activity. In the late recovery phase (greater than 14 days), NK activity and levels of T-cell subpopulations were normal with the exception of increased CD 4+ cells and, consequently, of the helper/suppressor ratios. In the acute phase of CP (less than 7 days), the T-cell imbalances were similar to those encountered with HZ patients.(ABSTRACT TRUNCATED AT 250 WORDS)
authors.affiliation: Clinica Malattie Infettive, Universita Cattolica S. Cuore, Roma, Italy.
authors.forename: R
authors.initials: R
authors.lastname: Cauda
authors.forename: E F
authors.initials: EF
authors.lastname: Prasthofer
authors.forename: A B
authors.initials: AB
authors.lastname: Tilden
authors.forename: R J
authors.initials: RJ
authors.lastname: Whitley
authors.forename: C E
authors.initials: CE
authors.lastname: Grossi
mesh_terms: D000328:Adult; D000954:Antigens, Surface / Q000032:analysis; D003601:Cytotoxicity Tests, Immunologic; D005260:Female; D005455:Fluorescent Antibody Technique; D006684:HLA-DR Antigens / Q000032:analysis; D006562:Herpes Zoster / Q000276:immunology*; D006801:Humans; D007694:Killer Cells, Natural / Q000276:immunology*; D008297:Male; D008875:Middle Aged; D010641:Phenotype; D013601:T-Lymphocytes / Q000276:immunology*; D006377:T-Lymphocytes, Helper-Inducer / Q000032:analysis; D050378:T-Lymphocytes, Regulatory / Q000032:analysis
chemical_list: D000954:Antigens, Surface; D006684:HLA-DR Antigens