PMID- 25045815 OWN - NLM STAT- MEDLINE DCOM- 20150330 LR - 20240130 IS - 1873-2518 (Electronic) IS - 0264-410X (Print) IS - 0264-410X (Linking) VI - 32 IP - 39 DP - 2014 Sep 3 TI - Contribution of TLR4 and MyD88 for adjuvant monophosphoryl lipid A (MPLA) activity in a DNA prime-protein boost HIV-1 vaccine. PG - 5049-56 LID - S0264-410X(14)00936-0 [pii] LID - 10.1016/j.vaccine.2014.07.010 [doi] AB - Recombinant protein vaccines are commonly formulated with an immune-stimulatory compound, or adjuvant, to boost immune responses to a particular antigen. Recent studies have shown that, through recognition of molecular motifs, receptors of the innate immune system are involved in the functions of adjuvants to generate and direct adaptive immune responses. However, it is not clear to which degree those receptors are also important when the adjuvant is used as part of a novel heterologous prime-boost immunization process in which the priming and boosting components are not the same type of vaccines. In the current study, we compared the immune responses elicited by a pentavalent HIV-1 DNA prime-protein boost vaccine in mice deficient in either Toll-like receptor 4 (TLR4) or myeloid differentiation primary response gene 88 (MyD88) to wildtype mice. HIV gp120 protein administered in the boost phase was formulated with either monophosphoryl lipid A (MPLA), QS-21, or Al(OH)3. Endpoint antibody titer, serum cytokine response and T-cell memory response were assessed. Neither TLR4 nor MyD88 deficiency had a significant effect on the immune response of mice given vaccine formulated with QS-21 or Al(OH)3. However, TLR4- and MyD88-deficiency decreased both the antibody and T-cell responses in mice administered HIV gp120 formulated with MPLA. These results further our understanding of the activation of TLR4 and MyD88 by MPLA in the context of a DNA prime/protein boost immunization strategy. CI - Copyright (c) 2014. Published by Elsevier Ltd. FAU - Pouliot, Kimberly AU - Pouliot K AD - Division of Infectious Diseases and Immunology, Program in Innate Immunity, Worcester, MA 01605, United States. FAU - Buglione-Corbett, Rachel AU - Buglione-Corbett R AD - Laboratory of Nucleic Acid Vaccines, Department of Medicine, University of Massachusetts Medical School, Worcester, MA 01605, United States. FAU - Marty-Roix, Robyn AU - Marty-Roix R AD - Division of Infectious Diseases and Immunology, Program in Innate Immunity, Worcester, MA 01605, United States. FAU - Montminy-Paquette, Sara AU - Montminy-Paquette S AD - Division of Infectious Diseases and Immunology, Program in Innate Immunity, Worcester, MA 01605, United States. FAU - West, Kim AU - West K AD - Laboratory of Nucleic Acid Vaccines, Department of Medicine, University of Massachusetts Medical School, Worcester, MA 01605, United States. FAU - Wang, Shixia AU - Wang S AD - Laboratory of Nucleic Acid Vaccines, Department of Medicine, University of Massachusetts Medical School, Worcester, MA 01605, United States. FAU - Lu, Shan AU - Lu S AD - Laboratory of Nucleic Acid Vaccines, Department of Medicine, University of Massachusetts Medical School, Worcester, MA 01605, United States. FAU - Lien, Egil AU - Lien E AD - Division of Infectious Diseases and Immunology, Program in Innate Immunity, Worcester, MA 01605, United States; Centre of Molecular Inflammation Research, Dept. of Cancer and Molecular Medicine, NTNU, 7491 Trondheim, Norway. Electronic address: egil.lien@umassmed.edu. LA - eng GR - U19 AI082676/AI/NIAID NIH HHS/United States GR - 5 P01 AI082274/AI/NIAID NIH HHS/United States GR - P01 AI082274/AI/NIAID NIH HHS/United States GR - 5 U19 AI082676/AI/NIAID NIH HHS/United States GR - R01 AI075318/AI/NIAID NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural DEP - 20140718 PL - Netherlands TA - Vaccine JT - Vaccine JID - 8406899 RN - 0 (AIDS Vaccines) RN - 0 (Adjuvants, Immunologic) RN - 0 (Cytokines) RN - 0 (HIV Antibodies) RN - 0 (HIV Envelope Protein gp120) RN - 0 (Immunoglobulin G) RN - 0 (Lipid A) RN - 0 (Myd88 protein, mouse) RN - 0 (Myeloid Differentiation Factor 88) RN - 0 (Saponins) RN - 0 (Tlr4 protein, mouse) RN - 0 (Toll-Like Receptor 4) RN - 0 (Vaccines, DNA) RN - 0 (gp120 protein, Human immunodeficiency virus 1) RN - 5QB0T2IUN0 (Aluminum Hydroxide) RN - 61H83WZX3U (saponin QA-21V1) RN - MWC0ET1L2P (monophosphoryl lipid A) SB - IM MH - AIDS Vaccines/*immunology MH - Adjuvants, Immunologic/*administration & dosage MH - Aluminum Hydroxide/administration & dosage MH - Animals MH - Cytokines/immunology MH - HIV Antibodies/blood MH - HIV Envelope Protein gp120/immunology MH - HIV-1 MH - Immunization, Secondary MH - Immunoglobulin G/blood MH - Immunologic Memory MH - Lipid A/administration & dosage/*analogs & derivatives MH - Mice MH - Myeloid Differentiation Factor 88/*immunology MH - Saponins/administration & dosage MH - T-Lymphocytes/immunology MH - Toll-Like Receptor 4/*immunology MH - Vaccines, DNA/immunology PMC - PMC10687719 MID - NIHMS1026483 OTO - NOTNLM OT - Antibody response OT - DNA Prime-protein boost vaccine OT - MPLA OT - MyD88 OT - TLR4 COIS- Conflict of interest statement The authors declare no conflicts of interest. EDAT- 2014/07/22 06:00 MHDA- 2015/03/31 06:00 PMCR- 2023/11/30 CRDT- 2014/07/22 06:00 PHST- 2014/01/16 00:00 [received] PHST- 2014/06/17 00:00 [revised] PHST- 2014/07/08 00:00 [accepted] PHST- 2014/07/22 06:00 [entrez] PHST- 2014/07/22 06:00 [pubmed] PHST- 2015/03/31 06:00 [medline] PHST- 2023/11/30 00:00 [pmc-release] AID - S0264-410X(14)00936-0 [pii] AID - 10.1016/j.vaccine.2014.07.010 [doi] PST - ppublish SO - Vaccine. 2014 Sep 3;32(39):5049-56. doi: 10.1016/j.vaccine.2014.07.010. Epub 2014 Jul 18.