PMID- 33767689 OWN - NLM STAT- MEDLINE DCOM- 20210412 LR - 20220716 IS - 1664-3224 (Electronic) IS - 1664-3224 (Linking) VI - 11 DP - 2020 TI - Polymeric Pathogen-Like Particles-Based Combination Adjuvants Elicit Potent Mucosal T Cell Immunity to Influenza A Virus. PG - 559382 LID - 10.3389/fimmu.2020.559382 [doi] LID - 559382 AB - Eliciting durable and protective T cell-mediated immunity in the respiratory mucosa remains a significant challenge. Polylactic-co-glycolic acid (PLGA)-based cationic pathogen-like particles (PLPs) loaded with TLR agonists mimic biophysical properties of microbes and hence, simulate pathogen-pattern recognition receptor interactions to safely and effectively stimulate innate immune responses. We generated micro particle PLPs loaded with TLR4 (glucopyranosyl lipid adjuvant, GLA) or TLR9 (CpG) agonists, and formulated them with and without a mucosal delivery enhancing carbomer-based nanoemulsion adjuvant (ADJ). These adjuvants delivered intranasally to mice elicited high numbers of influenza nucleoprotein (NP)-specific CD8+ and CD4+ effector and tissue-resident memory T cells (T(RM)s) in lungs and airways. PLPs delivering TLR4 versus TLR9 agonists drove phenotypically and functionally distinct populations of effector and memory T cells. While PLPs loaded with CpG or GLA provided immunity, combining the adjuvanticity of PLP-GLA and ADJ markedly enhanced the development of airway and lung T(RM)s and CD4 and CD8 T cell-dependent immunity to influenza virus. Further, balanced CD8 (Tc1/Tc17) and CD4 (Th1/Th17) recall responses were linked to effective influenza virus control. These studies provide mechanistic insights into vaccine-induced pulmonary T cell immunity and pave the way for the development of a universal influenza and SARS-CoV-2 vaccines. CI - Copyright (c) 2021 Kingstad-Bakke, Toy, Lee, Pradhan, Vogel, Marinaik, Larsen, Gates, Luu, Pandey, Kawaoka, Roy and Suresh. FAU - Kingstad-Bakke, Brock AU - Kingstad-Bakke B AD - Department of Pathobiological Sciences, University of Wisconsin-Madison, Madison, WI, United States. FAU - Toy, Randall AU - Toy R AD - The Wallace H. Coulter Department of Biomedical Engineering Georgia Institute of Technology and Emory University, Atlanta, GA, United States. FAU - Lee, Woojong AU - Lee W AD - Department of Pathobiological Sciences, University of Wisconsin-Madison, Madison, WI, United States. FAU - Pradhan, Pallab AU - Pradhan P AD - The Wallace H. Coulter Department of Biomedical Engineering Georgia Institute of Technology and Emory University, Atlanta, GA, United States. FAU - Vogel, Gabriela AU - Vogel G AD - The Wallace H. Coulter Department of Biomedical Engineering Georgia Institute of Technology and Emory University, Atlanta, GA, United States. FAU - Marinaik, Chandranaik B AU - Marinaik CB AD - Department of Pathobiological Sciences, University of Wisconsin-Madison, Madison, WI, United States. FAU - Larsen, Autumn AU - Larsen A AD - Department of Pathobiological Sciences, University of Wisconsin-Madison, Madison, WI, United States. FAU - Gates, Daisy AU - Gates D AD - Department of Pathobiological Sciences, University of Wisconsin-Madison, Madison, WI, United States. FAU - Luu, Tracy AU - Luu T AD - Department of Pathobiological Sciences, University of Wisconsin-Madison, Madison, WI, United States. FAU - Pandey, Bhawana AU - Pandey B AD - The Wallace H. Coulter Department of Biomedical Engineering Georgia Institute of Technology and Emory University, Atlanta, GA, United States. FAU - Kawaoka, Yoshihoro AU - Kawaoka Y AD - Department of Pathobiological Sciences, University of Wisconsin-Madison, Madison, WI, United States. FAU - Roy, Krishnendu AU - Roy K AD - The Wallace H. Coulter Department of Biomedical Engineering Georgia Institute of Technology and Emory University, Atlanta, GA, United States. FAU - Suresh, M AU - Suresh M AD - Department of Pathobiological Sciences, University of Wisconsin-Madison, Madison, WI, United States. LA - eng GR - R21 AI149793/AI/NIAID NIH HHS/United States GR - U01 AI124270/AI/NIAID NIH HHS/United States GR - U01 AI124299/AI/NIAID NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural DEP - 20210304 PL - Switzerland TA - Front Immunol JT - Frontiers in immunology JID - 101560960 RN - 0 (Adjuvants, Immunologic) RN - 0 (Toll-Like Receptor 4) RN - 1SIA8062RS (Polylactic Acid-Polyglycolic Acid Copolymer) SB - IM MH - Adjuvants, Immunologic/*pharmacology MH - Animals MH - Cell Line MH - Dogs MH - Immunity, Cellular/*immunology MH - Immunity, Innate/immunology MH - Immunologic Memory/immunology MH - Influenza A virus/*immunology MH - Intraepithelial Lymphocytes/*immunology MH - Lung/immunology/virology MH - Madin Darby Canine Kidney Cells MH - Mice MH - Mice, Inbred C57BL MH - Orthomyxoviridae Infections/immunology MH - Polylactic Acid-Polyglycolic Acid Copolymer/immunology MH - Toll-Like Receptor 4/immunology PMC - PMC7986715 OTO - NOTNLM OT - CD4 OT - CD8 OT - adjuvants OT - influenza A virus OT - polyfunctional OT - tissue-resident memory OT - vaccine COIS- The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. EDAT- 2021/03/27 06:00 MHDA- 2021/04/13 06:00 PMCR- 2021/03/04 CRDT- 2021/03/26 06:56 PHST- 2020/05/06 00:00 [received] PHST- 2020/12/21 00:00 [accepted] PHST- 2021/03/26 06:56 [entrez] PHST- 2021/03/27 06:00 [pubmed] PHST- 2021/04/13 06:00 [medline] PHST- 2021/03/04 00:00 [pmc-release] AID - 10.3389/fimmu.2020.559382 [doi] PST - epublish SO - Front Immunol. 2021 Mar 4;11:559382. doi: 10.3389/fimmu.2020.559382. eCollection 2020.