title: Association between cytomegalovirus-specific reactivity of T cell subsets and development of cytomegalovirus retinitis in patients with acquired immunodeficiency syndrome.
abstract: The association between cytomegalovirus (CMV)-specific reactivity of T cell subsets and development of CMV retinitis (CMV-R) was prospectively studied in 50 CMV-seropositive AIDS patients. The frequency of CMV-specific CD69 expression on CD8 T cells was similar in patients with and patients without CMV-R (median, 1.0% vs. 1.2%; P=.14). However, the frequency of CMV-specific CD69 expression on CD4 T cells was significantly lower in patients with CMV-R than in those without CMV-R (median, 0.4% vs. 2.25%; P<.001). CMV-specific CD4 T cell reactivity in patients who developed CMV-R shortly after starting highly active antiretroviral therapy (HAART) remained low, although the CD4 cell counts increased markedly. Therefore, development of CMV-R is associated with a poor CMV-specific reactivity of CD4 T cells but not with poor reactivity of CD8 T cells. Development of CMV-R after initiation of HAART is associated with a poor reconstitution of CMV-specific immune response, rather than with immune rebound.
authors.affiliation: Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan, Republic of China. hsmaids@hotmail.com
authors.forename: S M
authors.initials: SM
authors.lastname: Hsieh
authors.forename: S C
authors.initials: SC
authors.lastname: Pan
authors.forename: C C
authors.initials: CC
authors.lastname: Hung
authors.forename: H C
authors.initials: HC
authors.lastname: Tsai
authors.forename: M Y
authors.initials: MY
authors.lastname: Chen
authors.forename: S C
authors.initials: SC
authors.lastname: Chang
mesh_terms: D017088:AIDS-Related Opportunistic Infections / Q000150:complications / Q000276:immunology*; D000163:Acquired Immunodeficiency Syndrome / Q000150:complications* / Q000188:drug therapy; D000328:Adult; D015703:Antigens, CD / Q000378:metabolism; D000945:Antigens, Differentiation, T-Lymphocyte / Q000378:metabolism; D023241:Antiretroviral Therapy, Highly Active; D015496:CD4-Positive T-Lymphocytes / Q000276:immunology; D018414:CD8-Positive T-Lymphocytes / Q000276:immunology; D002478:Cells, Cultured; D003587:Cytomegalovirus / Q000276:immunology*; D017726:Cytomegalovirus Retinitis / Q000150:complications / Q000276:immunology*; D003601:Cytotoxicity Tests, Immunologic; D005260:Female; D006801:Humans; D007371:Interferon-gamma / Q000096:biosynthesis; D037181:Lectins, C-Type; D008213:Lymphocyte Activation; D008297:Male; D011446:Prospective Studies; D016176:T-Lymphocyte Subsets / Q000276:immunology*; D013997:Time Factors; D000099192:CD69 Antigens
chemical_list: D015703:Antigens, CD; D000945:Antigens, Differentiation, T-Lymphocyte; D007371:Interferon-gamma; D037181:Lectins, C-Type; D000099192:CD69 Antigens