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Jackson KJ, Buhl C, Miller SM, Khalaf JK, Ward J, Sands C, Walsh L, Whitacre M, Burkhart DJ, Bazin-Lee HG, Evans JT. Intranasal administration of a synthetic TLR4 agonist INI-2004 significantly reduces allergy symptoms following therapeutic administration in a murine model of allergic sensitization. Front Immunol 2024; 15:1421758. [PMID: 39108263 PMCID: PMC11300337 DOI: 10.3389/fimmu.2024.1421758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Accepted: 06/25/2024] [Indexed: 09/17/2024] Open
Abstract
Introduction Atopic diseases have been steadily increasing over the past decades and effective disease-modifying treatment options are urgently needed. These studies introduce a novel synthetic Toll-like receptor 4 (TLR4) agonist, INI-2004, with remarkable efficacy as a therapeutic intranasal treatment for seasonal allergic rhinitis. Methods Using a murine airway allergic sensitization model, the impact of INI-2004 on allergic responses was assessed. Results One or two intranasal doses of INI-2004 significantly reduced airway resistance, eosinophil influx, and Th2 cytokine production - providing strong evidence of allergic desensitization. Further investigations revealed that a liposomal formulation of INI-2004 exhibited better safety and efficacy profiles compared to aqueous formulations. Importantly, the liposomal formulation demonstrated a 1000-fold increase in the maximum tolerated intravenous dose in pigs. Pre-clinical GLP toxicology studies in rats and pigs confirmed the safety of liposomal INI-2004, supporting its selection for human clinical trials. Discussion These findings lay the groundwork for the ongoing clinical evaluation of INI-2004 in allergic rhinitis as a stand-alone therapy for individuals poly-sensitized to multiple seasonal allergens. The study underscores the significance of innovative immunotherapy approaches in reshaping the landscape of allergic rhinitis management.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Jay T. Evans
- Inimmune Corporation, Missoula, MT, United States
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Li J, Yan J, Liu YZ, Ma X. Stereoselective and controllable C3-Amination or C1,C3-di-amination of 2-nitroglycals. Carbohydr Res 2024; 540:109121. [PMID: 38692248 DOI: 10.1016/j.carres.2024.109121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 04/09/2024] [Accepted: 04/15/2024] [Indexed: 05/03/2024]
Abstract
Precise and selective modification of carbohydrates is a critical strategy in producing diverse carbohydrate derivatives for exploiting their functions. We disclosed a simple, efficient, and highly regioselective and stereoselective protocol to controllable amination of 2-nitroglycals under mild conditions in 5 min. A range of 3-amino-carbohydrates including 3-arylamino-2-nitro-glycals and 1,3-di-amino-carbohydrate derivatives were obtained in good to excellent yield with excellent stereoselectivity. The produced 3-amino-2-nitro-glycals can be used as a precursor for further transformation.
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Affiliation(s)
- Jiangtao Li
- Natural Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences, 610041, Chengdu, People's Republic of China; University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Jiaxin Yan
- Natural Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences, 610041, Chengdu, People's Republic of China; University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Ya-Zhou Liu
- Natural Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences, 610041, Chengdu, People's Republic of China; University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Xiaofeng Ma
- Natural Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences, 610041, Chengdu, People's Republic of China; University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China.
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Román-Cruz VC, Miller SM, Schoener RA, Lukasiewicz C, Schmidt AK, DeBuysscher BL, Burkhart D, Secor PR, Evans JT. Adjuvanted Vaccine Induces Functional Antibodies against Pseudomonas aeruginosa Filamentous Bacteriophages. Vaccines (Basel) 2024; 12:115. [PMID: 38400099 PMCID: PMC10892371 DOI: 10.3390/vaccines12020115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 12/27/2023] [Accepted: 01/18/2024] [Indexed: 02/25/2024] Open
Abstract
Pseudomonas aeruginosa (Pa), a WHO priority 1 pathogen, resulted in approximately 559,000 deaths globally in 2019. Pa has a multitude of host-immune evasion strategies that enhance Pa virulence. Most clinical isolates of Pa are infected by a phage called Pf that has the ability to misdirect the host-immune response and provide structural integrity to biofilms. Previous studies demonstrate that vaccination against the coat protein (CoaB) of Pf4 virions can assist in the clearance of Pa from the dorsal wound model in mice. Here, a consensus peptide was derived from CoaB and conjugated to cross-reacting material 197 (CRM197). This conjugate was adjuvanted with a novel synthetic Toll-like receptor agonist (TLR) 4 agonist, INI-2002, and used to vaccinate mice. Mice vaccinated with CoaB-CRM conjugate and INI-2002 developed high anti-CoaB peptide-specific IgG antibody titers. Direct binding of the peptide-specific antibodies to whole-phage virus particles was demonstrated by ELISA. Furthermore, a functional assay demonstrated that antibodies generated from vaccinated mice disrupted the replicative cycle of Pf phages. The use of an adjuvanted phage vaccine targeting Pa is an innovative vaccine strategy with the potential to become a new tool targeting multi-drug-resistant Pa infections in high-risk populations.
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Affiliation(s)
- Valery C. Román-Cruz
- Division of Biological Sciences, University of Montana, Missoula, MT 59812, USA; (V.C.R.-C.); (A.K.S.); (P.R.S.)
- Center for Translational Medicine, University of Montana, Missoula, MT 59812, USA; (C.L.); (B.L.D.); (D.B.)
| | | | | | - Chase Lukasiewicz
- Center for Translational Medicine, University of Montana, Missoula, MT 59812, USA; (C.L.); (B.L.D.); (D.B.)
- Department of Biomedical & Pharmaceutical Sciences, University of Montana, Missoula, MT 59812, USA
| | - Amelia K. Schmidt
- Division of Biological Sciences, University of Montana, Missoula, MT 59812, USA; (V.C.R.-C.); (A.K.S.); (P.R.S.)
| | - Blair L. DeBuysscher
- Center for Translational Medicine, University of Montana, Missoula, MT 59812, USA; (C.L.); (B.L.D.); (D.B.)
- Department of Biomedical & Pharmaceutical Sciences, University of Montana, Missoula, MT 59812, USA
| | - David Burkhart
- Center for Translational Medicine, University of Montana, Missoula, MT 59812, USA; (C.L.); (B.L.D.); (D.B.)
- Inimmune Corporation, Missoula, MT 59802, USA; (S.M.M.); (R.A.S.)
- Department of Biomedical & Pharmaceutical Sciences, University of Montana, Missoula, MT 59812, USA
| | - Patrick R. Secor
- Division of Biological Sciences, University of Montana, Missoula, MT 59812, USA; (V.C.R.-C.); (A.K.S.); (P.R.S.)
- Center for Translational Medicine, University of Montana, Missoula, MT 59812, USA; (C.L.); (B.L.D.); (D.B.)
| | - Jay T. Evans
- Division of Biological Sciences, University of Montana, Missoula, MT 59812, USA; (V.C.R.-C.); (A.K.S.); (P.R.S.)
- Center for Translational Medicine, University of Montana, Missoula, MT 59812, USA; (C.L.); (B.L.D.); (D.B.)
- Inimmune Corporation, Missoula, MT 59802, USA; (S.M.M.); (R.A.S.)
- Department of Biomedical & Pharmaceutical Sciences, University of Montana, Missoula, MT 59812, USA
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