Impaired antibody memory to varicella zoster virus in HIV-infected children: low antibody levels and avidity*.

Détails

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Etat: Serval
Version: de l'auteur
ID Serval
serval:BIB_5200F55235D3
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Impaired antibody memory to varicella zoster virus in HIV-infected children: low antibody levels and avidity*.
Périodique
Hiv Medicine
Auteur(s)
L'Huillier A.G., Ferry T., Courvoisier D.S., Aebi C., Cheseaux J.J., Kind C., Rudin C., Nadal D., Hirschel B., Sottas C., Siegrist C.A., Posfay-Barbe K.M.
Collaborateur(s)
Pediatric Infectious Diseases Group of Switzerland, Group of Switzerland (PIGS), Swiss HIV Cohort Study (SHCS), Swiss Mother & Child HIV Cohort Study (MoCHiV)
Contributeur(s)
Aebi C., Bär W., Besson F., Bühlmann U., Cheseaux J-., Desgrandchamps D., Diana A., Duppenthaler A., Gervaix A., Gnehm H., Heininger U., Hunzikerr UA., Kahlert C., Kind C., Kuchler H., Loher A., Masserey-Spicher V., Myers C., Nadal D., Posfay-Barbe K., Rudin C., Schaad U., Siegrist C-., Stähelin J., Vaudaux B., Wyler-Lazarevic C-., Zingg W., Aebi C., Battegay M., Bernasconi E., Böni J., Brazzola P., Bucher H., Calmy A., Cattacin S., Cavassini M., Cheseaux J-., Drack G., Dubs R., Egger M., Elzi L., Fischer M., Flepp M., Fontana A., Francioli P., Furrer H., Fux C., Gayet-Ageron A., Gerber S., Gorgievski M., Günthard H., Gyr T., Hirsch H., Hirschel B., Hösli I., Hüsler M., Kaiser L., Kahlert Ch., Karrer U., Kind C., Klimkait T., Ledergerber B., Martinetti G., Martinez B., Müller N., Nadal D., Paccaud F., Pantaleo G., Raio L., Rauch A., Regenass S., Rickenbach M., Rudin C., Schmid P., Schultze D., Schüpbach J., Speck R., Taffe P., Telenti A., Trkola A., Vernazza P., Weber R., Wyler-Lazarevic C-., Yerly S., Berger Ch.
ISSN
1468-1293 (Electronic)
ISSN-L
1464-2662
Statut éditorial
Publié
Date de publication
2012
Peer-reviewed
Oui
Volume
13
Numéro
1
Pages
54-61
Langue
anglais
Notes
Publication types: Journal Article Publication Status: ppublish
Résumé
OBJECTIVE: HIV-infected children have impaired antibody responses after exposure to certain antigens. Our aim was to determine whether HIV-infected children had lower varicella zoster virus (VZV) antibody levels compared with HIV-infected adults or healthy children and, if so, whether this was attributable to an impaired primary response, accelerated antibody loss, or failure to reactivate the memory VZV response.
METHODS: In a prospective, cross-sectional and retrospective longitudinal study, we compared antibody responses, measured by enzyme-linked immunosorbent assay (ELISA), elicited by VZV infection in 97 HIV-infected children and 78 HIV-infected adults treated with antiretroviral therapy, followed over 10 years, and 97 age-matched healthy children. We also tested antibody avidity in HIV-infected and healthy children.
RESULTS: Median anti-VZV immunoglobulin G (IgG) levels were lower in HIV-infected children than in adults (264 vs. 1535 IU/L; P<0.001) and levels became more frequently unprotective over time in the children [odds ratio (OR) 17.74; 95% confidence interval (CI) 4.36-72.25; P<0.001]. High HIV viral load was predictive of VZV antibody waning in HIV-infected children. Anti-VZV antibodies did not decline more rapidly in HIV-infected children than in adults. Antibody levels increased with age in healthy (P=0.004) but not in HIV-infected children. Thus, antibody levels were lower in HIV-infected than in healthy children (median 1151 IU/L; P<0.001). Antibody avidity was lower in HIV-infected than healthy children (P<0.001). A direct correlation between anti-VZV IgG level and avidity was present in HIV-infected children (P=0.001), but not in healthy children.
CONCLUSION: Failure to maintain anti-VZV IgG levels in HIV-infected children results from failure to reactivate memory responses. Further studies are required to investigate long-term protection and the potential benefits of immunization.
Mots-clé
Adolescent, Antibodies, Viral/blood, Antibodies, Viral/immunology, Antibody Affinity/immunology, Child, Child, Preschool, Enzyme-Linked Immunosorbent Assay, Epidemiologic Methods, Female, HIV Infections/immunology, Herpesvirus 3, Human/immunology, Humans, Immunoglobulin G/blood, Immunoglobulin G/immunology, Immunologic Memory/immunology, Male, Switzerland
Pubmed
Web of science
Création de la notice
29/10/2012 9:21
Dernière modification de la notice
03/03/2018 17:12
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