Abstract:
BACKGROUND:Chronic hepatitis C virus (HCV) and HIV infections are associated with impaired responses to neo-antigens contained in hepatitis A virus (HAV)/hepatitis B virus (HBV) vaccines, yet responsible mechanisms are unclear. METHODS:ACTG 5232 and CFAR0910 were clinical trials where pre-vaccine levels of plasma IP10, IL-6, sCD163 and sCD14 were measured in viremic HCV- (n = 15) or HIV-infected participants (n = 24) and uninfected controls (n = 10). Accelerated dosing HAV/HBV vaccine and tetanus booster were administered and antibody response was measured at 0, 1, 3, 8, and 24 weeks. RESULTS:Pre-vaccine plasma IP10, IL-6, and sCD14 levels were elevated in both HCV and HIV-infected participants, while sCD163 was also elevated in HCV-infected participants. Pre-immunization tetanus antibody levels were lower in HIV-infected than in uninfected participants, while vaccine induced antibody responses were intact in HCV and HIV-infected participants. After HAV/HBV vaccination, HCV and HIV-infected participants had lower and less durable HAV and HBV antibody responses than uninfected controls. Among HCV-infected participants, pre-vaccine plasma IP10, IL-6, sCD14, and sCD163 levels inversely correlated with HAV, HBV and tetanus antibody responses after vaccine. Low HAV/HBV vaccine responses in HIV-infected participants prohibited assessment of immune correlates. CONCLUSIONS:During HCV and HIV infection markers of systemic inflammation reflect immune dysfunction as demonstrated by poor response to HAV/HBV neo-antigen vaccine.
journal_name
Vaccinejournal_title
Vaccineauthors
Shive CL,Judge CJ,Clagett B,Kalayjian RC,Osborn M,Sherman KE,Fichtenbaum C,Gandhi RT,Kang M,Popkin DL,Sieg SF,Lederman MM,Rodriguez B,Anthony DDdoi
10.1016/j.vaccine.2017.12.018subject
Has Abstractpub_date
2018-01-25 00:00:00pages
453-460issue
4eissn
0264-410Xissn
1873-2518pii
S0264-410X(17)31761-9journal_volume
36pub_type
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