PMID- 27536733 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230726 IS - 2379-3708 (Print) IS - 2379-3708 (Electronic) IS - 2379-3708 (Linking) VI - 1 IP - 12 DP - 2016 Aug 4 TI - HSV-2 DeltagD elicits FcgammaR-effector antibodies that protect against clinical isolates. LID - e88529 [pii] AB - A single-cycle herpes simplex virus (HSV) deleted in glycoprotein D (DeltagD-2) elicited high titer HSV-specific antibodies (Abs) that (i) were rapidly transported into the vaginal mucosa; (ii) elicited antibody-dependent cell-mediated cytotoxicity but little neutralization; (iii) provided complete protection against lethal intravaginal challenge; and (iv) prevented establishment of latency in mice. However, clinical isolates may differ antigenically and impact vaccine efficacy. To determine the breadth and further define mechanisms of protection of this vaccine candidate, we tested DeltagD-2 against a panel of clinical isolates in a murine skin challenge model. The isolates were genetically diverse, as evidenced by genomic sequencing and in vivo virulence. Prime and boost immunization (s.c.) with live but not heat- or UV-inactivated DeltagD-2 completely protected mice from challenge with the most virulent HSV-1 and HSV-2 isolates. Furthermore, mice were completely protected against 100 times the lethal dose that typically kills 90% of animals (LD90) of a South African isolate (SD90), and no latent virus was detected in dorsal root ganglia. Immunization was associated with rapid recruitment of HSV-specific FcgammaRIII- and FcgammaRIV-activating IgG2 Abs into the skin, resolution of local cytokine and cellular inflammatory responses, and viral clearance by day 5 after challenge. Rapid clearance and the absence of latent virus suggest that DeltagD-2 elicits sterilizing immunity. FAU - Petro, Christopher D AU - Petro CD AD - Department of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, New York, USA; Howard Hughes Medical Institute, Albert Einstein College of Medicine, Bronx, New York, USA; Department of Pediatrics, Albert Einstein College of Medicine, Bronx, New York, USA. FAU - Weinrick, Brian AU - Weinrick B AD - Department of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, New York, USA; Howard Hughes Medical Institute, Albert Einstein College of Medicine, Bronx, New York, USA. FAU - Khajoueinejad, Nazanin AU - Khajoueinejad N AD - Department of Pediatrics, Albert Einstein College of Medicine, Bronx, New York, USA. FAU - Burn, Clare AU - Burn C AD - Department of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, New York, USA; Department of Pediatrics, Albert Einstein College of Medicine, Bronx, New York, USA. FAU - Sellers, Rani AU - Sellers R AD - Histology and Comparative Pathology Facility, Albert Einstein College of Medicine, Bronx, New York, USA. FAU - Jacobs, William R Jr AU - Jacobs WR Jr AD - Department of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, New York, USA; Howard Hughes Medical Institute, Albert Einstein College of Medicine, Bronx, New York, USA. FAU - Herold, Betsy C AU - Herold BC AD - Department of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, New York, USA; Department of Pediatrics, Albert Einstein College of Medicine, Bronx, New York, USA. LA - eng GR - R01 AI117321/AI/NIAID NIH HHS/United States GR - R37 AI026170/AI/NIAID NIH HHS/United States GR - R01 AI026170/AI/NIAID NIH HHS/United States GR - R01 AI065309/AI/NIAID NIH HHS/United States GR - R01 AI098925/AI/NIAID NIH HHS/United States GR - U19 AI103461/AI/NIAID NIH HHS/United States PT - Journal Article PL - United States TA - JCI Insight JT - JCI insight JID - 101676073 PMC - PMC4985247 MID - NIHMS808466 EDAT- 2016/08/19 06:00 MHDA- 2016/08/19 06:01 PMCR- 2016/08/04 CRDT- 2016/08/19 06:00 PHST- 2016/08/19 06:01 [medline] PHST- 2016/08/19 06:00 [entrez] PHST- 2016/08/19 06:00 [pubmed] PHST- 2016/08/04 00:00 [pmc-release] AID - e88529 [pii] AID - 88529 [pii] AID - 10.1172/jci.insight.88529 [doi] PST - ppublish SO - JCI Insight. 2016 Aug 4;1(12):e88529. doi: 10.1172/jci.insight.88529.