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Evaluation of VZV‐specific cell‐mediated immunity in adults infected with HIV‐1 by using a simple IFN‐γ release assay
Author(s) -
Watanabe Dai,
Otani Naruhito,
Suzuki Sachiko,
Dohi Hiromi,
Hirota Kazuyuki,
Yonemoto Hitoshi,
Koizumi Yusuke,
Otera Hiroshi,
Yajima Keishiro,
Nishida Yasuharu,
Uehira Tomoko,
Shima Masayuki,
Shirasaka Takuma,
Okuno Toshiomi
Publication year - 2013
Publication title -
journal of medical virology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 121
eISSN - 1096-9071
pISSN - 0146-6615
DOI - 10.1002/jmv.23611
Subject(s) - varicella zoster virus , immunology , medicine , disease , immunity , virus , immune system , vaccination , viral disease , virology , antibody
The development of herpes zoster is associated with reduced varicella zoster virus (VZV)‐specific cell‐mediated immune (CMI) reactions. In this study, VZV‐specific CMI reactions in 42 anti‐VZV‐IgG antibody‐positive adults infected with HIV‐1 were evaluated by measuring the IFN‐γ production levels in whole blood in response to stimulation with ultraviolet light‐inactivated live attenuated VZV vaccine. The median VZV‐specific IFN‐γ production level in all patients was 63 pg/ml. Antiretroviral therapy (ART)‐naïve patients with an AIDS‐defining illness (HIV classification category C) had significantly lower IFN‐γ production than ART‐naïve patients in categories A and B and patients receiving ART ( P = 0.0194 and P = 0.0046, respectively). IFN‐γ production increased significantly in patients within 1 month of the onset of recurrent VZV disease and at more than 1 year from onset, compared with patients who had never had recurrent VZV disease ( P = 0.0396 and P = 0.0484, respectively). In multivariate analyses, category C and history of recurrent VZV disease were significant factors affecting IFN‐γ production. Levels of IFN‐γ were measured before and after ART in seven ART‐naïve patients with no history of recurrent VZV disease, and no significant changes were observed. The results indicate that VZV‐specific CMI reactions were reduced in patients with an AIDS‐defining illness and enhanced in patients with a history of recurrent VZV disease, but not enhanced by ART alone. Vaccination may be necessary to inhibit the development of herpes zoster in patients receiving ART; this IFN‐γ releasing assay is one useful method for evaluating VZV‐specific CMI reactions in clinical settings. J. Med. Virol. 85:1313–1320, 2013 . © 2013 Wiley Periodicals, Inc.