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Jangid AK, Noh KM, Kim S, Kim K. Engineered inulin-based hybrid biomaterials for augmented immunomodulatory responses. Carbohydr Polym 2024; 340:122311. [PMID: 38858027 DOI: 10.1016/j.carbpol.2024.122311] [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: 04/08/2024] [Revised: 05/20/2024] [Accepted: 05/21/2024] [Indexed: 06/12/2024]
Abstract
Modified biopolymers that are based on prebiotics have been found to significantly contribute to immunomodulatory events. In recent years, there has been a growing use of modified biomaterials and polymer-functionalized nanomaterials in the treatment of various tumors by activating immune cells. However, the effectiveness of immune cells against tumors is hindered by several biological barriers, which highlights the importance of harnessing prebiotic-based biopolymers to enhance host defenses against cancer, thus advancing cancer prevention strategies. Inulin, in particular, plays a crucial role in activating immune cells and promoting the secretion of cytokines. Therefore, this mini-review aims to emphasize the importance of inulin in immunomodulatory responses, the development of inulin-based hybrid biopolymers, and the role of inulin in enhancing immunity and modifying cell surfaces. Furthermore, we discuss the various approaches of chemical modification for inulin and their potential use in cancer treatment, particularly in the field of cancer immunotherapy.
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Affiliation(s)
- Ashok Kumar Jangid
- Department of Chemical & Biochemical Engineering, Dongguk University, Seoul 04620, Republic of Korea
| | - Kyung Mu Noh
- Department of Chemical & Biochemical Engineering, Dongguk University, Seoul 04620, Republic of Korea
| | - Sungjun Kim
- Department of Chemical & Biochemical Engineering, Dongguk University, Seoul 04620, Republic of Korea
| | - Kyobum Kim
- Department of Chemical & Biochemical Engineering, Dongguk University, Seoul 04620, Republic of Korea.
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2
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Sajkov D, Woodman R, Honda-Okubo Y, Barbara J, Chew D, Toson B, Petrovsky N. A Multiseason Randomized Controlled Trial of Advax-Adjuvanted Seasonal Influenza Vaccine in Participants With Chronic Disease or Older Age. J Infect Dis 2024; 230:444-454. [PMID: 38157402 PMCID: PMC11326838 DOI: 10.1093/infdis/jiad589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Revised: 12/07/2023] [Accepted: 12/19/2023] [Indexed: 01/03/2024] Open
Abstract
BACKGROUND The aim of the current study was to determine the safety and immunogenicity of trivalent inactivated influenza vaccine (TIV) alone or formulated with Advax delta inulin adjuvant in those who were older (aged >60 years) or had chronic disease. METHODS Over 4 consecutive years from 2008 through 2011, adult participants with chronic disease or >60 years of age were recruited into a randomized controlled study to assess the safety, tolerability and immunogenicity of Advax-adjuvanted TIV (TIV + Adj) versus standard TIV. The per-protocol population with ≥1 postbaseline measurement of influenza antibodies comprised 1297 participants, 447 in the TIV and 850 in the TIV + Adj) group. RESULTS No safety issues were identified. Variables negatively affecting vaccine responses included obesity and diabetes mellitus. Advax adjuvant had a positive impact on anti-influenza immunoglobulin M responses and on H3N2 and B strain seropositivity as assessed by hemagglutination inhibition. CONCLUSIONS TIV + Adj was safe and well tolerated in individuals with chronic disease. There is an ongoing need for research into improved influenza vaccines for high-risk populations. CLINICAL TRIALS REGISTRATION Australia New Zealand Clinical Trial Registry: ACTRN 12608000364370.
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Affiliation(s)
- Dimitar Sajkov
- Australian Respiratory and Sleep Medicine Institute Ltd, Clovelly Park, South Australia, Australia
- Respiratory Department, Flinders University, Bedford Park, South Australia, Australia
| | - Richard Woodman
- Epidemiology and Biostatistics, Flinders University, Bedford Park, South Australia, Australia
| | - Yoshikazu Honda-Okubo
- Vaxine Pty Ltd, Warradale, South Australia, Australia
- College of Medicine and Public Health, Flinders University, Bedford Park, South Australia, Australia
| | - Jeffrey Barbara
- Renal Department, Flinders University, Bedford Park, South Australia, Australia
| | - Derek Chew
- Cardiology Department, Flinders University, Bedford Park, South Australia, Australia
| | - Barbara Toson
- College of Medicine and Public Health, Flinders University, Bedford Park, South Australia, Australia
| | - Nikolai Petrovsky
- Australian Respiratory and Sleep Medicine Institute Ltd, Clovelly Park, South Australia, Australia
- Vaxine Pty Ltd, Warradale, South Australia, Australia
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3
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Sheng S, Zhang H, Li X, Chen J, Wang P, Liang Y, Li C, Li H, Pan N, Bao X, Liu M, Zhao L, Li X, Guan P, Wang X. Probiotic-derived amphiphilic exopolysaccharide self-assembling adjuvant delivery platform for enhancing immune responses. J Nanobiotechnology 2024; 22:267. [PMID: 38764014 PMCID: PMC11103965 DOI: 10.1186/s12951-024-02528-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Accepted: 05/03/2024] [Indexed: 05/21/2024] Open
Abstract
Enhancing immune response activation through the synergy of effective antigen delivery and immune enhancement using natural, biodegradable materials with immune-adjuvant capabilities is challenging. Here, we present NAPSL.p that can activate the Toll-like receptor 4 (TLR4) pathway, an amphiphilic exopolysaccharide, as a potential self-assembly adjuvant delivery platform. Its molecular structure and unique properties exhibited remarkable self-assembly, forming a homogeneous nanovaccine with ovalbumin (OVA) as the model antigen. When used as an adjuvant, NAPSL.p significantly increased OVA uptake by dendritic cells. In vivo imaging revealed prolonged pharmacokinetics of NAPSL. p-delivered OVA compared to OVA alone. Notably, NAPSL.p induced elevated levels of specific serum IgG and isotype titers, enhancing rejection of B16-OVA melanoma xenografts in vaccinated mice. Additionally, NAPSL.p formulation improved therapeutic effects, inhibiting tumor growth, and increasing animal survival rates. The nanovaccine elicited CD4+ and CD8+ T cell-based immune responses, demonstrating the potential for melanoma prevention. Furthermore, NAPSL.p-based vaccination showed stronger protective effects against influenza compared to Al (OH)3 adjuvant. Our findings suggest NAPSL.p as a promising, natural self-adjuvanting delivery platform to enhance vaccine design across applications.
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Affiliation(s)
- Shouxin Sheng
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Science, Inner Mongolia University, Hohhot, 010021, P.R. China
| | - Haochi Zhang
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Science, Inner Mongolia University, Hohhot, 010021, P.R. China
| | - Xinyu Li
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Science, Inner Mongolia University, Hohhot, 010021, P.R. China
| | - Jian Chen
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Science, Inner Mongolia University, Hohhot, 010021, P.R. China
- JinYuBaoLing Biopharmaceutical Co. Ltd, Inner Mongolia, 010000, Hohhot, P.R. China
| | - Pu Wang
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Science, Inner Mongolia University, Hohhot, 010021, P.R. China
| | - Yanchen Liang
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Science, Inner Mongolia University, Hohhot, 010021, P.R. China
| | - Chunhe Li
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Science, Inner Mongolia University, Hohhot, 010021, P.R. China
| | - Haotian Li
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Science, Inner Mongolia University, Hohhot, 010021, P.R. China
| | - Na Pan
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Science, Inner Mongolia University, Hohhot, 010021, P.R. China
| | - Xuemei Bao
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Science, Inner Mongolia University, Hohhot, 010021, P.R. China
| | - Mengnan Liu
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Science, Inner Mongolia University, Hohhot, 010021, P.R. China
| | - Lixia Zhao
- JinYuBaoLing Biopharmaceutical Co. Ltd, Inner Mongolia, 010000, Hohhot, P.R. China
| | - Xiaoyan Li
- JinYuBaoLing Biopharmaceutical Co. Ltd, Inner Mongolia, 010000, Hohhot, P.R. China
| | - Pingyuan Guan
- JinYuBaoLing Biopharmaceutical Co. Ltd, Inner Mongolia, 010000, Hohhot, P.R. China
| | - Xiao Wang
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Science, Inner Mongolia University, Hohhot, 010021, P.R. China.
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Sanchez PL, Andre G, Antipov A, Petrovsky N, Ross TM. Advax-SM™-Adjuvanted COBRA (H1/H3) Hemagglutinin Influenza Vaccines. Vaccines (Basel) 2024; 12:455. [PMID: 38793706 PMCID: PMC11125990 DOI: 10.3390/vaccines12050455] [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: 02/08/2024] [Revised: 03/25/2024] [Accepted: 04/22/2024] [Indexed: 05/26/2024] Open
Abstract
Adjuvants enhance immune responses stimulated by vaccines. To date, many seasonal influenza vaccines are not formulated with an adjuvant. In the present study, the adjuvant Advax-SM™ was combined with next generation, broadly reactive influenza hemagglutinin (HA) vaccines that were designed using a computationally optimized broadly reactive antigen (COBRA) methodology. Advax-SM™ is a novel adjuvant comprising inulin polysaccharide and CpG55.2, a TLR9 agonist. COBRA HA vaccines were combined with Advax-SM™ or a comparator squalene emulsion (SE) adjuvant and administered to mice intramuscularly. Mice vaccinated with Advax-SM™ adjuvanted COBRA HA vaccines had increased serum levels of anti-influenza IgG and IgA, high hemagglutination inhibition activity against a panel of H1N1 and H3N2 influenza viruses, and increased anti-influenza antibody secreting cells isolated from spleens. COBRA HA plus Advax-SM™ immunized mice were protected against both morbidity and mortality following viral challenge and, at postmortem, had no detectable lung viral titers or lung inflammation. Overall, the Advax-SM™-adjuvanted COBRA HA formulation provided effective protection against drifted H1N1 and H3N2 influenza viruses.
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Affiliation(s)
- Pedro L. Sanchez
- Center for Vaccines and Immunology, University of Georgia, Athens, GA 30602, USA;
- Department of Infectious Diseases, University of Georgia, Athens, GA 30602, USA
- Florida Research and Innovation Center, Cleveland Clinic, Port Saint Lucie, FL 34987, USA
| | - Greiciely Andre
- Vaxine Pty Ltd., Adelaide, SA 5046, Australia; (G.A.); (A.A.); (N.P.)
| | - Anna Antipov
- Vaxine Pty Ltd., Adelaide, SA 5046, Australia; (G.A.); (A.A.); (N.P.)
| | - Nikolai Petrovsky
- Vaxine Pty Ltd., Adelaide, SA 5046, Australia; (G.A.); (A.A.); (N.P.)
| | - Ted M. Ross
- Center for Vaccines and Immunology, University of Georgia, Athens, GA 30602, USA;
- Department of Infectious Diseases, University of Georgia, Athens, GA 30602, USA
- Florida Research and Innovation Center, Cleveland Clinic, Port Saint Lucie, FL 34987, USA
- Department of Infection Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
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Akram W, Pandey V, Sharma R, Joshi R, Mishra N, Garud N, Haider T. Inulin: Unveiling its potential as a multifaceted biopolymer in prebiotics, drug delivery, and therapeutics. Int J Biol Macromol 2024; 259:129131. [PMID: 38181920 DOI: 10.1016/j.ijbiomac.2023.129131] [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: 10/22/2023] [Revised: 12/18/2023] [Accepted: 12/27/2023] [Indexed: 01/07/2024]
Abstract
In recent years, inulin has gained much attention as a promising multifunctional natural biopolymer with numerous applications in drug delivery, prebiotics, and therapeutics. It reveals a multifaceted biopolymer with transformative implications by elucidating the intricate interplay between inulin and the host, microbiome, and therapeutic agents. Their flexible structure, exceptional targetability, biocompatibility, inherent ability to control release behavior, tunable degradation kinetics, and protective ability make them outstanding carriers in healthcare and biomedicine. USFDA has approved Inulin as a nutritional dietary supplement for infants. The possible applications of inulin in biomedicine research inspired by nature are presented. The therapeutic potential of inulin goes beyond its role in prebiotics and drug delivery. Recently, significant research efforts have been made towards inulin's anti-inflammatory, antioxidant, and immunomodulatory properties for their potential applications in treating various chronic diseases. Moreover, its ability to reduce inflammation and modulate immune responses opens new avenues for treating conditions such as autoimmune disorders and gastrointestinal ailments. This review will attempt to illustrate the inulin's numerous and interconnected roles, shedding light on its critical contributions to the advancement of healthcare and biomedicine and its recent advancement in therapeutics, and conclude by taking valuable insights into the prospects and opportunities of inulin.
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Affiliation(s)
- Wasim Akram
- Department of Pharmaceutics, Amity Institute of Pharmacy, Amity University, Gwalior, Madhya Pradesh 4774005, India
| | - Vikas Pandey
- Department of Pharmaceutics, Amity Institute of Pharmacy, Amity University, Gwalior, Madhya Pradesh 4774005, India
| | - Rajeev Sharma
- Department of Pharmaceutics, Amity Institute of Pharmacy, Amity University, Gwalior, Madhya Pradesh 4774005, India
| | - Ramakant Joshi
- Department of Pharmaceutics, ShriRam college of Pharmacy, Banmore 476444, India
| | - Neeraj Mishra
- Department of Pharmaceutics, Amity Institute of Pharmacy, Amity University, Gwalior, Madhya Pradesh 4774005, India
| | - Navneet Garud
- School of Studies in Pharmaceutical Sciences, Jiwaji University, Gwalior 474011, India
| | - Tanweer Haider
- Department of Pharmaceutics, Amity Institute of Pharmacy, Amity University, Gwalior, Madhya Pradesh 4774005, India.
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Gyu Choi H, Woong Kwon K, Jae Shin S. Importance of adjuvant selection in tuberculosis vaccine development: Exploring basic mechanisms and clinical implications. Vaccine X 2023; 15:100400. [PMID: 37965276 PMCID: PMC10641539 DOI: 10.1016/j.jvacx.2023.100400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 09/13/2023] [Accepted: 10/18/2023] [Indexed: 11/16/2023] Open
Abstract
The global emergency of unexpected pathogens, exemplified by SARS-CoV-2, has emphasized the importance of vaccines in thwarting infection and curtailing the progression of severe disease. The scourge of tuberculosis (TB), emanating from the Mycobacterium tuberculosis (Mtb) complex, has inflicted a more profound toll in terms of mortality and morbidity than any other infectious agents prior to the SARS-CoV-2 pandemic. Despite the existence of Bacillus Calmette-Guérin (BCG), the only licensed vaccine developed a century ago, its efficacy against TB remains unsatisfactory, particularly in preventing pulmonary Mtb infections in adolescents and adults. However, collaborations between academic and industrial entities have led to a renewed impetus in the development of TB vaccines, with numerous candidates, particularly subunit vaccines with specialized adjuvants, exhibiting promising outcomes in recent clinical studies. Adjuvants are crucial in modulating optimal immunological responses, by endowing immune cells with sufficient antigen and immune signals. As exemplified by the COVID-19 vaccine landscape, the interplay between vaccine efficacy and adverse effects is of paramount importance, particularly for the elderly and individuals with underlying ailments such as diabetes and concurrent infections. In this regard, adjuvants hold the key to optimizing vaccine efficacy and safety. This review accentuates the pivotal roles of adjuvants and their underlying mechanisms in the development of TB vaccines. Furthermore, we expound on the prospects for the development of more efficacious adjuvants and their synergistic combinations for individuals in diverse states, such as aging, HIV co-infection, and diabetes, by examining the immunological alterations that arise with aging and comparing them with those observed in younger cohorts.
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Affiliation(s)
- Han Gyu Choi
- Department of Microbiology, and Medical Science, College of Medicine, Chungnam National University, Daejeon, Republic of Korea
| | - Kee Woong Kwon
- Department of Microbiology, Institute for Immunology and Immunological Diseases, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul 03722, South Korea
| | - Sung Jae Shin
- Department of Microbiology, Institute for Immunology and Immunological Diseases, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul 03722, South Korea
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7
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Honda-Okubo Y, Bart Tarbet E, Hurst BL, Petrovsky N. An Advax-CpG adjuvanted recombinant H5 hemagglutinin vaccine protects mice against lethal influenza infection. Vaccine 2023; 41:5730-5741. [PMID: 37567799 DOI: 10.1016/j.vaccine.2023.08.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 05/11/2023] [Accepted: 08/03/2023] [Indexed: 08/13/2023]
Abstract
There is a major unmet need for strategies to improve the immunogenicity of vaccines to protect against highly pathogenic avian influenza strains with pandemic potential. This study tested the ability of adjuvants based on delta inulin (Advax™) alone or combined with a TLR9 agonist (Advax-CpG™) to enhance the immunogenicity of recombinant H5 hemagglutinin antigen expressed in insect cells (rH5HA) to protect mice against lethal influenza infection. The Advax-adjuvanted rH5HA induced high serum hemagglutination inhibition activity, as well as Th1 and Th2 cytokine secreting CD4 and CD8 T cells. Immunization protected mice against a lethal heterosubtypic H5N1 virus challenge. Mice immunized with an Advax-adjuvanted rHA2 stem antigen prepared by enzymatic cleavage of rH5HA produced serum antibodies devoid of hemagglutination inhibition activity, but these anti-HA2 antibodies were nevertheless able to transfer protection against lethal H1N1 or H3N2 infections to naïve mice. We hypothesize that the enhanced protection afforded by Advax-adjuvanted rH5HA may be mediated by the combination of neutralizing antibodies directed at the HA head, anti-HA2 stem antibodies plus memory CD4 + and CD8 + T cells. This outcome supports further development of the Advax-adjuvanted rH5 pandemic influenza vaccine platform.
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Affiliation(s)
- Yoshikazu Honda-Okubo
- Vaxine Pty Ltd, Warradale, Adelaide, SA 5046, Australia; Flinders University, Bedford Park, Adelaide, SA 5042, Australia
| | - E Bart Tarbet
- Institute for Antiviral Research, Department of Animal, Dairy, and Veterinary Sciences, 5600 Old Main Hill, Utah State University, Logan, UT 84322, USA
| | - Brett L Hurst
- Institute for Antiviral Research, Department of Animal, Dairy, and Veterinary Sciences, 5600 Old Main Hill, Utah State University, Logan, UT 84322, USA
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8
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Honda-Okubo Y, Sakala IG, André G, Tarbet EB, Hurst BL, Petrovsky N. An Advax-CpG55.2 adjuvanted recombinant hemagglutinin vaccine provides immunity against H7N9 influenza in adult and neonatal mice. Vaccine 2023; 41:5592-5602. [PMID: 37532610 DOI: 10.1016/j.vaccine.2023.07.061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 07/25/2023] [Accepted: 07/26/2023] [Indexed: 08/04/2023]
Abstract
There is a major unmet need for strategies to improve the immunogenicity and effectiveness of pandemic influenza vaccines, particularly in poor responder populations such as neonates. Recombinant protein approaches to pandemic influenza offer advantages over more traditional inactivated virus approaches, as they are free of problems such as egg adaptation or need for high level biosecurity containment for manufacture. However, a weakness of recombinant proteins is their low immunogenicity. We asked whether the use of an inulin polysaccharide adjuvant (Advax) alone or combined with a TLR9 agonist (CpG55.2) would enhance the immunogenicity and protection of a recombinant hemagglutinin vaccine against H7N9 influenza (rH7HA), including in neonatal mice. Advax adjuvant induced predominantly IgG1 responses against H7HA, whereas Advax-CpG55.2 adjuvant also induced IgG2a, IgG2b and IgG3 responses, consistent with the TLR9 agonist component inducing a Th1 bias. Advax-CpG55.2 adjuvanted rH7HA induced high serum neutralizing antibody titers in adult mice. In newborns it similarly overcame immune hypo-responsiveness and enhanced serum anti-rH7HA IgG levels in 7-day-old BALB/C and C57BL/6 mice. Immunized adult mice were protected against a lethal H7N9 virus challenge. When formulated with Advax-CpG55.2 adjuvant, greater protection was seen with rH7HA than with inactivated H7 whole virus antigen. Advax-CpG55.2 adjuvanted rH7HA represents a promising influenza vaccine platform for further development.
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Affiliation(s)
- Yoshikazu Honda-Okubo
- Vaxine Pty Ltd, Bedford Park, Adelaide, SA 5042, Australia; Flinders University, Bedford Park, Adelaide, SA 5042, Australia
| | - Isaac G Sakala
- Vaxine Pty Ltd, Bedford Park, Adelaide, SA 5042, Australia; Flinders University, Bedford Park, Adelaide, SA 5042, Australia
| | | | - E Bart Tarbet
- Institute for Antiviral Research, Department of Animal, Dairy, and Veterinary Sciences, 5600 Old Main Hill, Utah State University, Logan, UT 84322, USA
| | - Brett L Hurst
- Institute for Antiviral Research, Department of Animal, Dairy, and Veterinary Sciences, 5600 Old Main Hill, Utah State University, Logan, UT 84322, USA
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Han S, Lee P, Choi HJ. Non-Invasive Vaccines: Challenges in Formulation and Vaccine Adjuvants. Pharmaceutics 2023; 15:2114. [PMID: 37631328 PMCID: PMC10458847 DOI: 10.3390/pharmaceutics15082114] [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: 07/13/2023] [Revised: 08/07/2023] [Accepted: 08/08/2023] [Indexed: 08/27/2023] Open
Abstract
Given the limitations of conventional invasive vaccines, such as the requirement for a cold chain system and trained personnel, needle-based injuries, and limited immunogenicity, non-invasive vaccines have gained significant attention. Although numerous approaches for formulating and administrating non-invasive vaccines have emerged, each of them faces its own challenges associated with vaccine bioavailability, toxicity, and other issues. To overcome such limitations, researchers have created novel supplementary materials and delivery systems. The goal of this review article is to provide vaccine formulation researchers with the most up-to-date information on vaccine formulation and the immunological mechanisms available, to identify the technical challenges associated with the commercialization of non-invasive vaccines, and to guide future research and development efforts.
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Affiliation(s)
| | | | - Hyo-Jick Choi
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB T6G 1H9, Canada; (S.H.); (P.L.)
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Habarugira G, Harrison JJ, Moran J, Suen WW, Colmant AMG, Hobson-Peters J, Isberg SR, Bielefeldt-Ohmann H, Hall RA. A chimeric vaccine protects farmed saltwater crocodiles from West Nile virus-induced skin lesions. NPJ Vaccines 2023; 8:93. [PMID: 37369653 DOI: 10.1038/s41541-023-00688-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 05/30/2023] [Indexed: 06/29/2023] Open
Abstract
West Nile virus (WNV) causes skin lesions in farmed crocodiles leading to the depreciation of the value of their hides and significant economic losses. However, there is no commercially available vaccine designed for use in crocodilians against WNV. We tested chimeric virus vaccines composed of the non-structural genes of the insect-specific flavivirus Binjari virus (BinJV) and genes encoding the structural proteins of WNV. The BinJV/WNV chimera, is antigenically similar to wild-type WNV but replication-defective in vertebrates. Intramuscular injection of two doses of BinJV/WNV in hatchling saltwater crocodiles (Crocodylus porosus) elicited a robust neutralising antibody response and conferred protection against viremia and skin lesions after challenge with WNV. In contrast, mock-vaccinated crocodiles became viraemic and 22.2% exhibited WNV-induced lesions. This suggests that the BinJV/WNV chimera is a safe and efficacious vaccine for preventing WNV-induced skin lesions in farmed crocodilians.
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Affiliation(s)
- Gervais Habarugira
- School of Veterinary Science, The University of Queensland, Gatton, QLD, Australia
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, Australia
| | - Jessica J Harrison
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, Australia
| | - Jasmin Moran
- Centre for Crocodile Research, Noonamah, NT, Australia
| | - Willy W Suen
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, Australia
- Australian Centre for Disease Preparedness, The Commonwealth Scientific and Industrial Research Organisation, Geelong, VIC, 3219, Australia
| | - Agathe M G Colmant
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, Australia
- Australian Infectious Diseases Research Centre, The University of Queensland, St Lucia, QLD, Australia
- Unité des Virus Émergents (UVE) Aix-Marseille Univ-IRD 190-Inserm 1207, Marseille, France
| | - Jody Hobson-Peters
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, Australia
- Australian Infectious Diseases Research Centre, The University of Queensland, St Lucia, QLD, Australia
| | | | - Helle Bielefeldt-Ohmann
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, Australia.
- Australian Infectious Diseases Research Centre, The University of Queensland, St Lucia, QLD, Australia.
| | - Roy A Hall
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, Australia.
- Australian Infectious Diseases Research Centre, The University of Queensland, St Lucia, QLD, Australia.
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11
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Maghrebi S, Thomas N, Prestidge CA, Joyce P. Inulin-lipid hybrid (ILH) microparticles promote pH-triggered release of rifampicin within infected macrophages. Drug Deliv Transl Res 2023; 13:1716-1729. [PMID: 36630076 PMCID: PMC10126022 DOI: 10.1007/s13346-022-01287-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/21/2022] [Indexed: 01/12/2023]
Abstract
Intracellular bacteria serve as a problematic source of infection due to their ability to evade biological immune responses and the inability for conventional antibiotics to efficiently penetrate cellular membranes. Subsequently, new treatment approaches are urgently required to effectively eradicate intracellular pathogens residing within immune cells (e.g. macrophages). In this study, the poorly soluble and poorly permeable antibiotic, rifampicin, was re-purposed via micro-encapsulation within inulin-lipid hybrid (ILH) particles for the treatment of macrophages infected with small colony variants of Staphylococcus aureus (SCV S. aureus). Rifampicin-encapsulated ILH (Rif-ILH) microparticles were synthesized by spray drying a lipid nano-emulsion, with inulin dissolved throughout the aqueous phase and rifampicin pre-loaded within the lipid phase. Rif-ILH were strategically designed and engineered with pH-responsive properties to promote lysosomal drug release upon cellular internalization, while preventing premature rifampicin release in plasma-simulating media. The pH-responsiveness of Rif-ILH was controlled by the acid-mediated hydrolysis of the inulin coating, where exposure to acidic media simulating the lysosomal environment of macrophages triggered hydrolysis of the oligofructose chain and the subsequent diffusion of rifampicin from Rif-ILH. This pH-provoked release mechanism, as well as the ability for ILH microparticles to be more readily internalized by macrophages, was found to be influential in triggering a 2.9-fold increase in intracellular rifampicin concentration within infected macrophages, compared to the pure drug. The subsequent increase in exposure of intracellular pathogens to rifampicin leads to a ~ 2-log improvement in antibacterial activity for Rif-ILH, at a rifampicin dose of 2.5 µg/mL. Thus, the reduction in viability of intracellular SCV S. aureus, in the absence of cellular toxicity, is indicative of ILH microparticles serving as a unique approach for the safe and efficacious delivery of antibiotics to phagocytic cells for the treatment of intracellular infections.
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Affiliation(s)
- Sajedeh Maghrebi
- UniSA Clinical and Health Sciences, University of South Australia, Adelaide, South Australia, 5000, Australia
| | - Nicky Thomas
- UniSA Clinical and Health Sciences, University of South Australia, Adelaide, South Australia, 5000, Australia
| | - Clive A Prestidge
- UniSA Clinical and Health Sciences, University of South Australia, Adelaide, South Australia, 5000, Australia.
| | - Paul Joyce
- UniSA Clinical and Health Sciences, University of South Australia, Adelaide, South Australia, 5000, Australia.
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12
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Gao Y, Guo Y. Research progress in the development of natural-product-based mucosal vaccine adjuvants. Front Immunol 2023; 14:1152855. [PMID: 37090704 PMCID: PMC10113501 DOI: 10.3389/fimmu.2023.1152855] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Accepted: 03/27/2023] [Indexed: 04/08/2023] Open
Abstract
Mucosal vaccines have great potential and advantages in preventing infection caused by multiple pathogens. In developing mucosal vaccines, the biggest challenge comes from finding safe and effective adjuvants and drug delivery systems. Great progress has been made in the generation of mucosal adjuvants using detoxified bacterial toxin derivatives, pathogen-related molecules, cytokines, and various vaccine delivery systems. However, many problems, relating to the safety and efficacy of mucosal vaccine adjuvants, remain. Certain natural substances can boost the immune response and thus could be used as adjuvants in vaccination. These natural-product-based immune adjuvants have certain advantages over conventional adjuvants, such as low toxicity, high stability, and low cost of production. In this review, we summarize the latest natural-product-based immune adjuvants, and discuss their properties and clinical applications.
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13
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Duong VT, Skwarczynski M, Toth I. Towards the development of subunit vaccines against tuberculosis: The key role of adjuvant. Tuberculosis (Edinb) 2023; 139:102307. [PMID: 36706503 DOI: 10.1016/j.tube.2023.102307] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 12/22/2022] [Accepted: 01/12/2023] [Indexed: 01/15/2023]
Abstract
According to the World Health Organization (WHO), tuberculosis (TB) is the leading cause of death triggered by a single infectious agent, worldwide. Bacillus Calmette-Guerin (BCG) is the only currently licensed anti-TB vaccine. However, other strategies, including modification of recombinant BCG vaccine, attenuated Mycobacterium tuberculosis (Mtb) mutant constructs, DNA and protein subunit vaccines, are under extensive investigation. As whole pathogen vaccines can trigger serious adverse reactions, most current strategies are focused on the development of safe anti-TB subunit vaccines; this is especially important given the rising TB infection rate in immunocompromised HIV patients. The whole Mtb genome has been mapped and major antigens have been identified; however, optimal vaccine delivery mode is still to be established. Isolated protein antigens are typically poorly immunogenic so adjuvants are required to induce strong and long-lasting immune responses. This article aims to review the developmental status of anti-TB subunit vaccine adjuvants.
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Affiliation(s)
- Viet Tram Duong
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, QLD, 4072, Australia.
| | - Mariusz Skwarczynski
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, QLD, 4072, Australia.
| | - Istvan Toth
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, QLD, 4072, Australia; Institute for Molecular Bioscience, The University of Queensland, St Lucia, QLD, 4072, Australia; School of Pharmacy, The University of Queensland, Woolloongabba, QLD, 4102, Australia.
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14
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Fan Z, Zhang Y, Jiao L, Zhu T, Feng Z, Liu Z, Yang Y, Wang D. Lycium barbarum polysaccharides-loaded Particulate Alum via Pickering emulsion as an adjuvant to enhance immune responses. Int J Pharm 2022; 630:122418. [PMID: 36423709 DOI: 10.1016/j.ijpharm.2022.122418] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 10/19/2022] [Accepted: 11/16/2022] [Indexed: 11/23/2022]
Abstract
Pickering emulsion has great potential as a vaccine adjuvant due to its unique advantages such as its high antigen loading efficiency, great stability, etc. Among several adjuvants on the market, aluminum adjuvant (Alum) is the most widely used at present. However, problems such as the inability to effectively induce cellular immunity and the poor effect on subunit vaccines limit the application of Alum. As an immunopotentiator, Lycium barbarum polysaccharides (LBP) have been proven to have the ability to regulate humoral and cellular immunity. To overcome the insufficiency of Alum, we explored a new adjuvant delivery system. The Lycium barbarum polysaccharides-loaded Particulate Alum via Pickering emulsion (LBPPE) was prepared by loading Alum on the squalene/water interphase following LBP was adsorbed on the Alum surface (Fig. 10). Similar to squalene, LBPPE possesses a good biosafety profile. LBPPE was spherical with uneven surface, which increased the possibility of efficient antigen adsorption on the surface and crack of LBPPE. And the result shown that the LBPPE had high antigen loading rate at approximately 90 %. In vivo experiments, LBPPE showed an excellent ability to recruit antigen-presenting cells (APCs) at the injection sites, activate dendritic cells in the lymph nodes. Then, in the evaluation of humoral immunity, LBPPE was able to effectively induce the production of IgG, IgG1, and IgG2a. Moreover, LBPPE significantly enhanced the expression and activation of T lymphocytes, and induced a strong immune memory T cells response. All the results above suggested that LBPPE is likely to provide promising insights toward a safe and efficient adjuvant platform for vaccines.
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Affiliation(s)
- Zexiao Fan
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, PR China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Yue Zhang
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, PR China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Lina Jiao
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, PR China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Tianyu Zhu
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, PR China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Zian Feng
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, PR China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Zhenguang Liu
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, PR China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Yang Yang
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, PR China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Deyun Wang
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, PR China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China.
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15
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Mucosal immunization with a delta-inulin adjuvanted recombinant spike vaccine elicits lung-resident immune memory and protects mice against SARS-CoV-2. Mucosal Immunol 2022; 15:1405-1415. [PMID: 36411332 PMCID: PMC9676795 DOI: 10.1038/s41385-022-00578-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 09/12/2022] [Accepted: 10/09/2022] [Indexed: 11/22/2022]
Abstract
Multiple SARS-CoV-2 vaccine candidates have been approved for use and have had a major impact on the COVID-19 pandemic. There remains, however, a significant need for vaccines that are safe, easily transportable and protective against infection, as well as disease. Mucosal vaccination is favored for its ability to induce immune memory at the site of infection, making it appealing for SARS-CoV-2 vaccine strategies. In this study we performed in-depth analysis of the immune responses in mice to a subunit recombinant spike protein vaccine formulated with the delta-inulin adjuvant Advax when administered intratracheally (IT), versus intramuscular delivery (IM). Both routes produced robust neutralizing antibody titers (NAb) and generated sterilizing immunity against SARS-CoV-2. IT delivery, however, produced significantly higher systemic and lung-local NAb that resisted waning up to six months post vaccination, and only IT delivery generated inducible bronchus-associated lymphoid tissue (iBALT), a site of lymphocyte antigen presentation and proliferation. This was coupled with robust and long-lasting lung tissue-resident memory CD4+ and CD8+ T cells that were not observed in IM-vaccinated mice. This study provides a detailed view of the lung-resident cellular response to IT vaccination against SARS-CoV-2 and demonstrates the importance of delivery site selection in the development of vaccine candidates.
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16
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Eichinger KM, Kosanovich JL, Perkins T, Oury TD, Petrovsky N, Marshall CP, Yondola MA, Empey KM. Prior respiratory syncytial virus infection reduces vaccine-mediated Th2-skewed immunity, but retains enhanced RSV F-specific CD8 T cell responses elicited by a Th1-skewing vaccine formulation. Front Immunol 2022; 13:1025341. [PMID: 36268035 PMCID: PMC9577258 DOI: 10.3389/fimmu.2022.1025341] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 09/13/2022] [Indexed: 11/17/2022] Open
Abstract
Respiratory syncytial virus (RSV) remains the most common cause of lower respiratory tract infections in children worldwide. Development of a vaccine has been hindered due the risk of enhanced respiratory disease (ERD) following natural RSV exposure and the young age (<6 months) at which children would require protection. Risk factors linked to the development of ERD include poorly neutralizing antibody, seronegative status (never been exposed to RSV), and a Th2-type immune response. Stabilization of the more antigenic prefusion F protein (PreF) has reinvigorated hope for a protective RSV vaccine that elicits potent neutralizing antibody. While anecdotal evidence suggests that children and adults previously exposed to RSV (seropositive) are not at risk for developing vaccine associated ERD, differences in host immune responses in seropositive and seronegative individuals that may protect against ERD remain unclear. It is also unclear if vaccine formulations that skew towards Th1- versus Th2-type immune responses increase pathology or provide greater protection in seropositive individuals. Therefore, the goal of this work was to compare the host immune response to a stabilized prefusion RSV antigen formulated alone or with Th1 or Th2 skewing adjuvants in seronegative and seropositive BALB/c mice. We have developed a novel BALB/c mouse model whereby mice are first infected with RSV (seropositive) and then vaccinated during pregnancy to recapitulate maternal immunization strategies. Results of these studies show that prior RSV infection mitigates vaccine-mediated skewing by Th1- and Th2-polarizing adjuvants that was observed in seronegative animals. Moreover, vaccination with PreF plus the Th1-skewing adjuvant, Advax, increased RSV F85-93-specific CD8 T cells in both seronegative and seropositive dams. These data demonstrate the importance of utilizing seropositive animals in preclinical vaccine studies to assess both the safety and efficacy of candidate RSV vaccines.
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Affiliation(s)
- Katherine M. Eichinger
- Department of Pharmaceutical Sciences, University of Pittsburgh School of Pharmacy, University of Pittsburgh, Pittsburgh, PA, United States
| | - Jessica L. Kosanovich
- Department of Pharmaceutical Sciences, University of Pittsburgh School of Pharmacy, University of Pittsburgh, Pittsburgh, PA, United States
| | - Timothy N. Perkins
- Department of Pathology, University of Pittsburgh School of Medicine, University of Pittsburg, Pittsburgh, PA, United States
| | - Tim D. Oury
- Department of Pathology, University of Pittsburgh School of Medicine, University of Pittsburg, Pittsburgh, PA, United States
| | - Nikolai Petrovsky
- Vaxine Pty Ltd., Bedford Park, SA, Australia
- College of Medicine and Public Health, Flinders University, Bedford Park, SA, Australia
| | | | | | - Kerry M. Empey
- Department of Pharmacy and Therapeutics, University of Pittsburgh School of Pharmacy, University of Pittsburgh, Pittsburgh, PA, United States
- Center for Clinical Pharmaceutical Sciences, University of Pittsburgh School of Pharmacy, University of Pittsburgh, Pittsburgh, PA, United States
- Department of Immunology, University of Pittsburgh School of Medicine, University of Pittsburgh, Pittsburgh, PA, United States
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17
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Li X, Wichai N, Wang J, Liu X, Yan H, Wang Y, Luo M, Zhou S, Wang K, Li L, Miao L. Regulation of innate and adaptive immunity using herbal medicine: benefits for the COVID-19 vaccination. ACUPUNCTURE AND HERBAL MEDICINE 2022; 2:196-206. [PMID: 37808346 PMCID: PMC9746255 DOI: 10.1097/hm9.0000000000000046] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Accepted: 09/06/2022] [Indexed: 08/18/2023]
Abstract
Vaccination is a major achievement that has become an effective prevention strategy against infectious diseases and active control of emerging pathogens worldwide. In response to the coronavirus disease 2019 (COVID-19) pandemic, several diverse vaccines against severe acute respiratory syndrome coronavirus 2 have been developed and deployed for use in a large number of individuals, and have been reported to protect against symptomatic COVID-19 cases and deaths. However, the application of vaccines has a series of limitations, including protective failure for variants of concern, unavailability of individuals due to immune deficiency, and the disappearance of immune protection for increasing infections in vaccinated individuals. These aspects raise the question of how to modulate the immune system that contributes to the COVID-19 vaccine protective effects. Herbal medicines are widely used for their immune regulatory abilities in clinics. More attractively, herbal medicines have been well accepted for their positive role in the COVID-19 prevention and suppression through regulation of the immune system. This review presents a brief overview of the strategy of COVID-19 vaccination and the response of the immune system to vaccines, the regulatory effects and mechanisms of herbal medicine in immune-related macrophages, natural killer cells, dendritic cells, and lymphocytes T and B cells, and how they help vaccines work. Later in the article, the potential role and application of herbal medicines in the most recent COVID-19 vaccination are discussed. This article provides new insights into herbal medicines as promising alternative supplements that may benefit from COVID-19 vaccination. Graphical abstract http://links.lww.com/AHM/A31.
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Affiliation(s)
- Xuan Li
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Nuttapong Wichai
- Faculty of Pharmacy, Mahasarakham University, Mahasarakham, Thailand
| | - Jiabao Wang
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Xiuping Liu
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Huimin Yan
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yu Wang
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Mingchi Luo
- Second Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Shengyuan Zhou
- Second Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Kai Wang
- Second Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Lin Li
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Lin Miao
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, China
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18
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Kinetic of the Antibody Response Following AddaVax-Adjuvanted Immunization with Recombinant Influenza Antigens. Vaccines (Basel) 2022; 10:vaccines10081315. [PMID: 36016202 PMCID: PMC9415944 DOI: 10.3390/vaccines10081315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 08/10/2022] [Accepted: 08/11/2022] [Indexed: 11/16/2022] Open
Abstract
Notwithstanding the current SARS-CoV-2 pandemic, influenza virus infection still represents a global health concern in terms of hospitalizations and possible pandemic threats. The objective of next-generation influenza vaccines is not only to increase the breadth of response but also to improve the elicitation of an effective and robust immune response, especially in high-risk populations. To achieve this second objective, the administration of adjuvanted influenza vaccines has been considered. In this regard, the monitoring and characterization of the antibody response associated with the administration of adjuvanted vaccines has been evaluated in this study in order to shed light on the kinetic, magnitude and subclass usage of antibody secreting cells (ASCs) as well as of circulating antigen-specific serum antibodies. Specifically, we utilized the DBA/2J mouse model to assess the kinetic, magnitude and IgG subclass usage of the antibody response following an intramuscular (IM) or intraperitoneal (IP) immunization regimen with AddaVax-adjuvanted bivalent H1N1 and H3N2 computationally optimized broadly reactive antigen (COBRA) influenza recombinant hemagglutinins (rHAs). While the serological evaluation revealed a homogeneous kinetic of the antibody response, the detection of the ASCs through a FluoroSpot platform revealed a different magnitude, subclass usage and kinetic of the antigen-specific IgG secreting cells peaking at day 5 and day 9 following the IP and IM immunization, respectively.
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19
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Honda-Okubo Y, Cartee RT, Thanawastien A, Seung Yang J, Killeen KP, Petrovsky N. A typhoid fever protein capsular matrix vaccine candidate formulated with Advax-CpG adjuvant induces a robust and durable anti-typhoid Vi polysaccharide antibody response in mice, rabbits and nonhuman primates. Vaccine 2022; 40:4625-4634. [PMID: 35750538 DOI: 10.1016/j.vaccine.2022.06.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Revised: 06/13/2022] [Accepted: 06/14/2022] [Indexed: 10/17/2022]
Abstract
Typhax is an investigational typhoid fever vaccine candidate that is comprised of Vi polysaccharide from Salmonella enterica serovar typhi (S. Typhi) non-covalently entrapped in a glutaraldehyde catalyzed, cross-linked α-poly-L-lysine and CRM197 protein matrix. A previous Phase 1 trial of an aluminum phosphate adjuvanted Typhax formulation showed it induced Vi IgG after a single dose but that subsequent doses failed to further boost Vi IgG levels. The current study asked whether Advax-CpG adjuvant might instead be able to overcome polysaccharide-induced immune inhibition and improve Typhax immunogenicity. Advax-CpG adjuvanted Typhax elicited high and sustained Vi IgG responses in mice, rabbits and non-human primates (NHP) with levels being boosted by repeated immunization. High Vi antibody responses were lost in CD4 + T cell depleted mice confirming that despite the lack of conjugation of the polysaccharide to the carrier protein, Typhax nevertheless acts in a T cell dependent manner, explaining its ability to induce long-term B cell memory responses to Vi capable of being boosted. In NHP, Advax-CpG adjuvanted Typhax induced up to 100-fold higher Vi IgG levels than the commercial Typhim Vi polysaccharide vaccine. Typhax induced high and sustained serum bactericidal activity against S. Typhi and stimulated robust Vi IgG responses even in animals previously primed with a pure polysaccharide vaccine. Hence Advax-CpG adjuvanted Typhax vaccine is a highly promising candidate to provide robust and durable protection against typhoid fever.
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Affiliation(s)
- Yoshikazu Honda-Okubo
- Vaxine Pty Ltd, 11 Walkley Avenue, Warradale, Adelaide, Australia; School of Medicine and Public Health, Flinders University, Adelaide, Australia
| | - Robert T Cartee
- Matrivax Research & Development Corporation, Boston, MA, USA
| | | | - Jae Seung Yang
- Clinical Immunology, International Vaccine Institute (IVI), South Korea
| | - Kevin P Killeen
- Matrivax Research & Development Corporation, Boston, MA, USA
| | - Nikolai Petrovsky
- Vaxine Pty Ltd, 11 Walkley Avenue, Warradale, Adelaide, Australia; School of Medicine and Public Health, Flinders University, Adelaide, Australia.
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20
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Aghamiri S, Noofeli M, Saffarian P, Salehi Najafabadi Z, Goudarzi HR. Investigating preparation and characterisation of diphtheria toxoid-loaded on sodium alginate nanoparticles. IET Nanobiotechnol 2022; 16:199-209. [PMID: 35610737 PMCID: PMC9178656 DOI: 10.1049/nbt2.12088] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 03/18/2022] [Accepted: 05/05/2022] [Indexed: 11/30/2022] Open
Abstract
This paper aims to investigate the preparation and characterisation of the alginate nanoparticles (NPs) as antigen delivery system loaded by diphtheria toxoid (DT). For this purpose, both the loading capacity (LC) and Loading efficiency (LE) of the alginate NPs burdened by DT are evaluated. Moreover, the effects of different concentrations of sodium alginate and calcium chloride on the NPs physicochemical characteristics are surveyed in addition to other physical conditions such as homogenization time and rate. To do so, the NPs are characterised using particle size and distribution, zeta potential, scanning electron microscopy, encapsulation efficiency, in vitro release study and FT‐IR spectroscopy. Subsequently, the effects of homogenization time and rate on the NPs are assessed. At the meantime, the NPs LC and efficiency in several DT concentrations are estimated. The average size of the NPs was 400.7 and 276.6 nm for unloaded and DT loaded, respectively. According to the obtained results, the zeta potential of the blank and DT loaded NPs are estimated as −23.7 mV and −21.2 mV, respectively. Whereas, the LC and LE were >80% and >90%, in that order. Furthermore, 95% of the releasing DT loaded NPs occurs at 140 h in the sustained mode without any bursting release. It can be concluded that the features of NPs such as morphology and particle size are strongly depended on the calcium chloride, sodium alginate concentrations and physicochemical conditions in the NPs formation process. In addition, appropriate concentrations of the sodium alginate and calcium ions would lead to obtaining the desirable NPs formation associated with the advantageous LE, LC (over 80%) and sustained in vitro release profile. Ultimately, the proposed NPs can be employed in vaccine formulation for the targeted delivery, controlled and slow antigen release associated with the improved antigen stability.
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Affiliation(s)
- Samira Aghamiri
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Mojtaba Noofeli
- Department of Research and Development, Razi Vaccine and Serum Research Institute, Agriculture Research Education and Extension Organization (AREEO), Karaj, Iran
| | - Parvaneh Saffarian
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Zahra Salehi Najafabadi
- Department of Human Bacterial Vaccine, Razi Vaccine and Serum Research Institute, Agriculture Research Education and Extension Organization (AREEO), Karaj, Iran
| | - Hamid Reza Goudarzi
- Department of Research and Development, Razi Vaccine and Serum Research Institute, Agriculture Research Education and Extension Organization (AREEO), Karaj, Iran
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21
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Wu SJ, Ewing D, Sundaram AK, Chen HW, Liang Z, Cheng Y, Jani V, Sun P, Gromowski GD, De La Barrera RA, Schilling MA, Petrovsky N, Porter KR, Williams M. Enhanced Immunogenicity of Inactivated Dengue Vaccines by Novel Polysaccharide-Based Adjuvants in Mice. Microorganisms 2022; 10:microorganisms10051034. [PMID: 35630476 PMCID: PMC9146336 DOI: 10.3390/microorganisms10051034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 05/03/2022] [Accepted: 05/13/2022] [Indexed: 02/01/2023] Open
Abstract
Dengue fever, caused by any of four dengue viruses (DENV1-4), is a major global burden. Currently, there is no effective vaccine that prevents infection in dengue naïve populations. We tested the ability of two novel adjuvants (Advax-PEI and Advax-2), using aluminum hydroxide (alum) as control, to enhance the immunogenicity of formalin- or psoralen-inactivated (PIV or PsIV) DENV2 vaccines in mice. Mice were vaccinated on days 0 and 30, and serum samples were collected on days 30, 60, 90, and 101. Neutralizing antibodies were determined by microneutralization (MN) assays, and the geometric mean 50% MN (MN50) titers were calculated. For the PIV groups, after one dose MN50 titers were higher in the novel adjuvant groups compared to the alum control, while MN50 titers were comparable between the adjuvant groups after the second dose. For the PsIV groups, both novel adjuvants induced higher MN50 titers than the alum control after the second dose. Spleen cells were collected on days 45 and 101 for enzyme-linked immunospot (ELISPOT) for IFNγ and IL4. Both PIV and PsIV groups elicited different degrees of IFNγ and IL4 responses. Overall, Advax-2 gave the best responses just ahead of Advax-PEI. Given Advax-2’s extensive human experience in other vaccine applications, it will be pursued for further development.
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Affiliation(s)
- Shuenn-Jue Wu
- Viral and Rickettsial Diseases Department, Infectious Diseases Directorate, Naval Medical Research Center, Silver Spring, MD 20910, USA; (D.E.); (A.K.S.); (H.-W.C.); (Z.L.); (Y.C.); (V.J.); (P.S.); (M.A.S.)
- Correspondence:
| | - Dan Ewing
- Viral and Rickettsial Diseases Department, Infectious Diseases Directorate, Naval Medical Research Center, Silver Spring, MD 20910, USA; (D.E.); (A.K.S.); (H.-W.C.); (Z.L.); (Y.C.); (V.J.); (P.S.); (M.A.S.)
| | - Appavu K. Sundaram
- Viral and Rickettsial Diseases Department, Infectious Diseases Directorate, Naval Medical Research Center, Silver Spring, MD 20910, USA; (D.E.); (A.K.S.); (H.-W.C.); (Z.L.); (Y.C.); (V.J.); (P.S.); (M.A.S.)
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, MD 20817, USA
| | - Hua-Wei Chen
- Viral and Rickettsial Diseases Department, Infectious Diseases Directorate, Naval Medical Research Center, Silver Spring, MD 20910, USA; (D.E.); (A.K.S.); (H.-W.C.); (Z.L.); (Y.C.); (V.J.); (P.S.); (M.A.S.)
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, MD 20817, USA
| | - Zhaodong Liang
- Viral and Rickettsial Diseases Department, Infectious Diseases Directorate, Naval Medical Research Center, Silver Spring, MD 20910, USA; (D.E.); (A.K.S.); (H.-W.C.); (Z.L.); (Y.C.); (V.J.); (P.S.); (M.A.S.)
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, MD 20817, USA
| | - Ying Cheng
- Viral and Rickettsial Diseases Department, Infectious Diseases Directorate, Naval Medical Research Center, Silver Spring, MD 20910, USA; (D.E.); (A.K.S.); (H.-W.C.); (Z.L.); (Y.C.); (V.J.); (P.S.); (M.A.S.)
- Leidos, Inc., Reston, VA 20190, USA
| | - Vihasi Jani
- Viral and Rickettsial Diseases Department, Infectious Diseases Directorate, Naval Medical Research Center, Silver Spring, MD 20910, USA; (D.E.); (A.K.S.); (H.-W.C.); (Z.L.); (Y.C.); (V.J.); (P.S.); (M.A.S.)
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, MD 20817, USA
| | - Peifang Sun
- Viral and Rickettsial Diseases Department, Infectious Diseases Directorate, Naval Medical Research Center, Silver Spring, MD 20910, USA; (D.E.); (A.K.S.); (H.-W.C.); (Z.L.); (Y.C.); (V.J.); (P.S.); (M.A.S.)
| | - Gregory D. Gromowski
- Viral Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA;
| | - Rafael A. De La Barrera
- Pilot Bioproduction Facility, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA;
| | - Megan A. Schilling
- Viral and Rickettsial Diseases Department, Infectious Diseases Directorate, Naval Medical Research Center, Silver Spring, MD 20910, USA; (D.E.); (A.K.S.); (H.-W.C.); (Z.L.); (Y.C.); (V.J.); (P.S.); (M.A.S.)
| | - Nikolai Petrovsky
- Vaxine Pty Ltd., Warradale, SA 5042, Australia;
- College of Medicine and Public Health, Flinders University, Bedford Park, SA 5042, Australia
| | - Kevin R. Porter
- Infectious Diseases Directorate, Naval Medical Research Center, Silver Spring, MD 20910, USA; (K.R.P.); (M.W.)
| | - Maya Williams
- Infectious Diseases Directorate, Naval Medical Research Center, Silver Spring, MD 20910, USA; (K.R.P.); (M.W.)
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22
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Zhang Y, Jiao L, Wu Z, Gu P, Feng Z, Xu S, Liu Z, Yang Y, Wang D. Fabrication and characterization of Chinese yam polysaccharides PLGA nanoparticles stabilized Pickering emulsion as an efficient adjuvant. Int J Biol Macromol 2022; 209:513-524. [PMID: 35421409 DOI: 10.1016/j.ijbiomac.2022.04.043] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 04/03/2022] [Accepted: 04/05/2022] [Indexed: 12/18/2022]
Abstract
The Chinese yam polysaccharides PLGA nanoparticles were applied as stabilizers in this study to prepare O/W Pickering emulsion. The optimized preparation conditions were PLGA concentration of 5 mg/mL, ultrasonic power of 50 %, and ultrasonic time of 2 min. The CYP-PPAS emulsion exhibits a raspberry-like morphology with a large number of nanoparticles surrounding the oil droplets. The CYP-PPAS emulsion exhibited outstanding stability at 4 °C and 37 °C for 28 days with high antigen loading efficiency and provided a controlled and sustained release of Chinese yam polysaccharides and OVA antigen in vitro. CYP-PPAS/OVA elicited robust antigen-specific immune response and induced a mixed Th1/Th2 immune response after immunization. Furthermore, CYP-PPAS/OVA caused a high CD4+/CD8+ ratio leading in increased activation of splenic T lymphocytes subpopulations. Moreover, CYP-PPAS is a safe vaccination adjuvant with high safety profile in vivo. Thus, the novel designed Pickering emulsion CYP-PPAS was a safe and effective adjuvant for inducing the strong and long-term immune response.
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Affiliation(s)
- Yue Zhang
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, PR China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Lina Jiao
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, PR China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Zhiyong Wu
- Nanjing Traditional Chinese Veterinary Medicine Research Center, Nanjing 210095, PR China
| | - Pengfei Gu
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, PR China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Zian Feng
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, PR China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Shuwen Xu
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, PR China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Zhenguang Liu
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, PR China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Yang Yang
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, PR China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Deyun Wang
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, PR China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China.
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23
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Tabynov K, Babayeva M, Nurpeisov T, Fomin G, Nurpeisov T, Saltabayeva U, Renu S, Renukaradhya GJ, Petrovsky N, Tabynov K. Evaluation of a Novel Adjuvanted Vaccine for Ultrashort Regimen Therapy of Artemisia Pollen-Induced Allergic Bronchial Asthma in a Mouse Model. Front Immunol 2022; 13:828690. [PMID: 35371056 PMCID: PMC8965083 DOI: 10.3389/fimmu.2022.828690] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 02/15/2022] [Indexed: 12/25/2022] Open
Abstract
Wormwood (Artemisia) pollen is among the top 10 aeroallergens globally that cause allergic rhinitis and bronchial asthma. Allergen-specific immunotherapy (ASIT) is the gold standard for treating patients with allergic rhinitis, conjunctivitis, and asthma. A significant disadvantage of today's ASIT methods is the long duration of therapy and multiplicity of allergen administrations. The goal of this study was to undertake a pilot study in mice of a novel ultrashort vaccine immunotherapy regimen incorporating various adjuvants to assess its ability to treat allergic bronchial asthma caused by wormwood pollen. We evaluated in a mouse model of wormwood pollen allergy candidates comprising recombinant Art v 1 wormwood pollen protein formulated with either newer (Advax, Advax-CpG, ISA-51) or more traditional [aluminum hydroxide, squalene water emulsion (SWE)] adjuvants administered by the intramuscular or subcutaneous route vs. intranasal administration of a mucosal vaccine formulation using chitosan-mannose nanoparticle entrapped with Art v 1 protein. The vaccine formulations were administered to previously wormwood pollen-sensitized animals, four times at weekly intervals. Desensitization was determined by measuring decreases in immunoglobulin E (IgE), cellular immunity, ear swelling test, and pathological changes in the lungs of animals after aeroallergen challenge. Art v 1 protein formulation with Advax, Advax-CpG, SWE, or ISA-51 adjuvants induced a significant decrease in both total and Art v 1-specific IgE with a concurrent increase in Art v 1-specific IgG compared to the positive control group. There was a shift in T-cell cytokine secretion toward a Th1 (Advax-CpG, ISA-51, and Advax) or a balanced Th1/Th2 (SWE) pattern. Protection against lung inflammatory reaction after challenge was seen with ISA-51, Advax, and SWE Art v 1 formulations. Overall, the ISA-51-adjuvanted vaccine group induced the largest reduction of allergic ear swelling and protection against type 2 and non-type 2 lung inflammation in challenged animals. This pilot study shows the potential to develop an ultrashort ASIT regimen for wormwood pollen-induced bronchial asthma using appropriately adjuvanted recombinant Art v 1 protein. The data support further preclinical studies with the ultimate goal of advancing this therapy to human clinical trials.
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Affiliation(s)
- Kairat Tabynov
- International Center for Vaccinology, Kazakh National Agrarian Research University (KazNARU), Almaty, Kazakhstan.,Preclinical Research Laboratory With Vivarium, M. Aikimbayev National Research Center for Especially Dangerous Infections, Almaty, Kazakhstan.,T&TvaX LLC, Almaty, Kazakhstan
| | - Meruert Babayeva
- International Center for Vaccinology, Kazakh National Agrarian Research University (KazNARU), Almaty, Kazakhstan.,Department of General Immunology, Asfendiyarov Kazakh National Medical University (KazNMU), Almaty, Kazakhstan
| | - Tair Nurpeisov
- Department of General Immunology, Asfendiyarov Kazakh National Medical University (KazNMU), Almaty, Kazakhstan.,Republican Allergy Center, Research Institute of Cardiology and Internal Medicine, Almaty, Kazakhstan
| | - Gleb Fomin
- International Center for Vaccinology, Kazakh National Agrarian Research University (KazNARU), Almaty, Kazakhstan
| | - Temirzhan Nurpeisov
- Department of General Immunology, Asfendiyarov Kazakh National Medical University (KazNMU), Almaty, Kazakhstan
| | | | - Sankar Renu
- Center for Food Animal Health, Ohio Agricultural Research and Development Center, The Ohio State University (OSU), Wooster, OH, United States
| | - Gourapura J Renukaradhya
- Center for Food Animal Health, Ohio Agricultural Research and Development Center, The Ohio State University (OSU), Wooster, OH, United States
| | | | - Kaissar Tabynov
- International Center for Vaccinology, Kazakh National Agrarian Research University (KazNARU), Almaty, Kazakhstan.,T&TvaX LLC, Almaty, Kazakhstan.,Republican Allergy Center, Research Institute of Cardiology and Internal Medicine, Almaty, Kazakhstan
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24
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Tabarsi P, Anjidani N, Shahpari R, Mardani M, Sabzvari A, Yazdani B, Roshanzamir K, Bayatani B, Taheri A, Petrovsky N, Li L, Barati S. Safety and immunogenicity of SpikoGen®, an advax-cpg55.2-adjuvanted sars-cov-2 spike protein vaccine: a phase 2 randomized placebo-controlled trial in both seropositive and seronegative populations. Clin Microbiol Infect 2022; 28:1263-1271. [PMID: 35436611 PMCID: PMC9012510 DOI: 10.1016/j.cmi.2022.04.004] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Revised: 03/05/2022] [Accepted: 04/03/2022] [Indexed: 01/01/2023]
Abstract
Objective We aimed to investigate the immunogenicity and safety of SpikoGen®, a subunit COVID-19 vaccine composed of a recombinant prefusion-stabilized SARS-CoV-2 spike protein combined with the Advax-CpG55.2™ adjuvant, in seronegative and seropositive populations as primary vaccination. Methods This randomized, placebo-controlled, double-blind phase 2 trial was conducted on 400 participants randomized 3:1 to receive two doses of 25 μg of SpikoGen® 3 weeks apart or the placebo. The primary safety outcomes were the incidence of solicited adverse events up to 7 days after each dose and unsolicited adverse events up to 28 days after the second dose. The primary immunogenicity outcomes were seroconversion against the S1 protein and the geometric mean concentration of S1 antibodies by days 21 and 35. Results The SpikoGen® vaccine was well tolerated and no serious adverse events were recorded. The most common solicited adverse events were injection site pain and fatigue, largely graded as mild and transient. By day 35 (2 weeks post second dose), the seroconversion rate against S1 was 63.55 (95% CI: 57.81–69.01) in the SpikoGen® group versus 7.23 (95% CI: 2.7–15.07) in the placebo group. The geometric mean concentration of S1 antibodies was 29.12 (95% CI: 24.32–34.87) in the SpikoGen® group versus 5.53 (95% CI: 4.39–6.97) in the placebo group. Previously infected seropositive volunteers showed a large SARS-CoV-2 humoral response after a single SpikoGen® dose. Discussion SpikoGen® had an acceptable safety profile and induced promising humoral and cellular immune responses against SARS-CoV-2.
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Affiliation(s)
- Payam Tabarsi
- Clinical Tuberculosis and Epidemiology Research Centre, National Research Institute for Tuberculosis and Lung Disease (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Ramin Shahpari
- Medical Department, Orchid Pharmed Company, Tehran, Iran
| | - Masoud Mardani
- Infectious Disease and Tropical Medicine Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Araz Sabzvari
- Medical Department, Orchid Pharmed Company, Tehran, Iran
| | - Babak Yazdani
- Medical Department, Orchid Pharmed Company, Tehran, Iran
| | - Khashayar Roshanzamir
- CinnaGen Medical Biotechnology Research Center, Alborz University of Medical Sciences, Karaj, Iran
| | | | - Ali Taheri
- Medical Department, Orchid Pharmed Company, Tehran, Iran
| | | | - Lei Li
- Vaxine Pty Ltd, Bedford Park, Adelaide, Australia
| | - Saghar Barati
- Medical Department, Orchid Pharmed Company, Tehran, Iran.
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25
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Akin I, Akdas S, Ceylan MN, Altiner S, Aribal Ayral P, Yazihan N. Evaluation of the safety and efficacy of Advax TM as an adjuvant: A systematic review and meta-analysis. Adv Med Sci 2022; 67:10-17. [PMID: 34562856 DOI: 10.1016/j.advms.2021.09.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 07/06/2021] [Accepted: 09/03/2021] [Indexed: 11/30/2022]
Abstract
PURPOSE Developing a vaccine with improved immunogenicity is still a growing priority for many diseases. Different types of adjuvants may be beneficial to initiate and maintain the long-lasting immunogenicity of vaccines. Evidence has shown that polysaccharide adjuvants are efficient in improving immunological mechanisms with their biocompatibility and biodegradability characteristics. In this study, we aimed to investigate the safety and efficacy of AdvaxTM an adjuvant derived from delta inulin. METHODS A systematic research was performed in Pubmed, Web of Science, and Scopus databases for the following keywords; "AdvaxTM" OR "delta inulin" until December 14th, 2020. RevMan 5.4.1 software was used for cumulative meta-analysis and bias analysis. We also used GraphPad Prism 6 software for the figures. RESULTS In the cumulative meta-analysis, it was found that seroconversion and geometric mean titers (GMT) levels significantly increased in AdvaxTM-adjuvanted group (mean difference: 12.31, 95% Cl [4.14, 20.47], p = 0.003; 17.10, 95% Cl [4.35, 29.85], p = 0.009, respectively). We also observed that AdvaxTM could be effective in improving immunogenicity by inducing T-cell responses and plasmablast generation in viral vaccines. CONCLUSIONS In this study, it was shown that AdvaxTM is a safe and well-tolerated adjuvant. AdvaxTM could be a potent adjuvant in increasing the protection and immunogenicity of different vaccines without safety issues. However, further studies are needed to verify these effects of AdvaxTM adjuvant.
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Affiliation(s)
- Irem Akin
- Institute of Health Sciences, Interdisciplinary Food, Metabolism and Clinical Nutrition Department, Ankara University Faculty of Medicine, Ankara, Turkey
| | - Sevginur Akdas
- Institute of Health Sciences, Interdisciplinary Food, Metabolism and Clinical Nutrition Department, Ankara University Faculty of Medicine, Ankara, Turkey
| | - Merve Nur Ceylan
- Institute of Health Sciences, Interdisciplinary Food, Metabolism and Clinical Nutrition Department, Ankara University Faculty of Medicine, Ankara, Turkey
| | - Seda Altiner
- Allergy and Clinical Immunology Clinic, Necip Fazil City Hospital, Kahramanmaras, Ankara, Turkey
| | - Pelin Aribal Ayral
- Institute of Health Sciences, Interdisciplinary Food, Metabolism and Clinical Nutrition Department, Ankara University Faculty of Medicine, Ankara, Turkey; Department of Pathophysiology, Faculty of Medicine, Ankara University, Ankara, Turkey
| | - Nuray Yazihan
- Institute of Health Sciences, Interdisciplinary Food, Metabolism and Clinical Nutrition Department, Ankara University Faculty of Medicine, Ankara, Turkey; Department of Pathophysiology, Faculty of Medicine, Ankara University, Ankara, Turkey.
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26
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Wan X, Yin Y, Zhou C, Hou L, Cui Q, Zhang X, Cai X, Wang Y, Wang L, Tian J. Polysaccharides derived from Chinese medicinal herbs: A promising choice of vaccine adjuvants. Carbohydr Polym 2022; 276:118739. [PMID: 34823775 DOI: 10.1016/j.carbpol.2021.118739] [Citation(s) in RCA: 39] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Revised: 10/05/2021] [Accepted: 10/05/2021] [Indexed: 01/24/2023]
Abstract
Adjuvants have been used in vaccines for a long time to promote the body's immune response, reducing vaccine dosage and production costs. Although many vaccine adjuvants are developed, the use in human vaccines is limited because of either limited action or side effects. Therefore, the development of new vaccine adjuvants is required. Many studies have found that natural polysaccharides derived from Traditional Chinese medicine (TCM) possess good immune promoting effects and simultaneously improve humoral, cellular and mucosal immunity. Recently polysaccharide adjuvants have attracted much attention in vaccine preparation because of their intrinsic characteristics: immunomodulation, biocompatibility, biodegradability, low toxicity and safety. This review article systematically analysed the literature on polysaccharides possessing vaccine adjuvant activity from TCM plants, such as Astragalus polysaccharide (APS), Rehmannia glutinosa polysaccharide (RGP), Isatis indigotica root polysaccharides (IRPS), etc. and their derivatives. We believe that polysaccharide adjuvants can be used to prepare the vaccines for clinical use provided their mechanisms of action are studied in detail.
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Affiliation(s)
- Xinhuan Wan
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Yiming Yin
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Changzheng Zhou
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Lin Hou
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China; Qingdao Academy of Chinese Medicinal Sciences, Shandong University of Traditional Chinese Medicine, Qingdao 266041, China
| | - Qinghua Cui
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China; Qingdao Academy of Chinese Medicinal Sciences, Shandong University of Traditional Chinese Medicine, Qingdao 266041, China
| | - Xiaoping Zhang
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China; Qingdao Academy of Chinese Medicinal Sciences, Shandong University of Traditional Chinese Medicine, Qingdao 266041, China
| | - Xiaoqing Cai
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Yuliang Wang
- Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Lizhu Wang
- The First Clinical College, Shandong University of Traditional Chinese Medicine, Jinan, China.
| | - Jingzhen Tian
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China; Qingdao Academy of Chinese Medicinal Sciences, Shandong University of Traditional Chinese Medicine, Qingdao 266041, China.
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27
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Kumar A, Sharma A, Tirpude NV, Padwad Y, Hallan V, Kumar S. Plant-derived immuno-adjuvants in vaccines formulation: a promising avenue for improving vaccines efficacy against SARS-CoV-2 virus. Pharmacol Rep 2022; 74:1238-1254. [PMID: 36125739 PMCID: PMC9487851 DOI: 10.1007/s43440-022-00418-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 09/08/2022] [Accepted: 09/09/2022] [Indexed: 12/13/2022]
Abstract
The SARS-CoV-2 outbreak has posed a plethora of problems for the global healthcare system and socioeconomic burden. Despite valiant efforts to contain the COVID-19 outbreak, the situation has deteriorated to the point that there are no viable preventive therapies to treat this disease. The case count has skyrocketed globally due to the newly evolved variants. Despite vaccination drives, the re-occurrence of recent pandemic waves has reinforced the importance of innovation/utilization of immune-booster to achieve appropriate long-term vaccine protection. Plant-derived immuno-adjuvants, which have multifaceted functions, can impede infections by boosting the immune system. Many previous studies have shown that formulation of vaccines using plant-derived adjuvant results in long-lasting immunity may overcome the natural tendency of coronavirus immunity to wane quickly. Plant polysaccharides, glycosides, and glycoprotein extracts have reportedly been utilized as enticing adjuvants in experimental vaccines, such as Advax, Matrix-M, and Mistletoe lectin, which have been shown to be highly immunogenic and safe. When employed in vaccine formulation, Advax and Matrix-M generate long-lasting antibodies, a balanced robust Th1/Th2 cytokine profile, and the stimulation of cytotoxic T cells. Thus, the use of adjuvants derived from plants may increase the effectiveness of vaccines, resulting in the proper immunological response required to combat COVID-19. A few have been widely used in epidemic outbreaks, including SARS and H1N1 influenza, and their use could also improve the efficacy of COVID-19 vaccines. In this review, the immunological adjuvant properties of plant compounds as well as their potential application in anti-COVID-19 therapy are thoroughly discussed.
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Affiliation(s)
- Arbind Kumar
- grid.417640.00000 0004 0500 553XCOVID-19 Testing facility, CSIR-Institute of Himalayan Bioresource Technology (IHBT), Palampur, India
| | - Aashish Sharma
- grid.417640.00000 0004 0500 553XCOVID-19 Testing facility, CSIR-Institute of Himalayan Bioresource Technology (IHBT), Palampur, India
| | - Narendra Vijay Tirpude
- grid.417640.00000 0004 0500 553XDietetics and Nutrition Technology Division, CSIR-Institute of Himalayan Bioresource Technology (IHBT), Palampur, India
| | - Yogendra Padwad
- grid.417640.00000 0004 0500 553XDietetics and Nutrition Technology Division, CSIR-Institute of Himalayan Bioresource Technology (IHBT), Palampur, India
| | - Vipin Hallan
- grid.417640.00000 0004 0500 553XBiotechnology Division, CSIR-Institute of Himalayan Bioresource Technology (IHBT), Palampur, India
| | - Sanjay Kumar
- grid.417640.00000 0004 0500 553XCSIR-Institute of Himalayan Bioresource Technology (IHBT), Palampur, India
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28
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Zhang R, Hung IFN. Approaches in broadening the neutralizing antibody response of the influenza vaccine. Expert Rev Vaccines 2021; 20:1539-1547. [PMID: 34549677 DOI: 10.1080/14760584.2021.1984887] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
INTRODUCTION Influenza vaccine is the mainstay for influenza prevention and elicits immune response and antigen-specific neutralizing antibodies against influenza virus. However, antigenic drift and shift can confer influenza virus to escape from the immune response induced by vaccine, and then reduce the vaccine effectiveness. AREAS COVERED To improve effect and neutralizing antibody response of vaccine for heterologous influenza virus, a literature review of preclinical and clinical studies published before August 2021 and searched in PubMed, which evaluated vaccine effectiveness improved by adjuvants and administration route. EXPERT OPINION The review showed that adjuvant, including imiquimod, GLA, MF59, and AS03, can improve the effectiveness of influenza vaccines by regulating immune system. Subjects receiving influenza vaccine combined with these adjuvants showed enhanced antibody response against homologous and heterologous virus strains compared to those vaccinated without adjuvant. This review also discussed the role of intradermal vaccination. In contrast to intramuscular vaccination, intradermal vaccination elicited a robust and prolonged antibody response against vaccine strains and drifted virus than intramuscular vaccination.
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Affiliation(s)
- Ruiqi Zhang
- Department of Medicine, Li Ka Shing Faculty of Medicine, University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region, China
| | - Ivan Fan-Ngai Hung
- Department of Medicine, Li Ka Shing Faculty of Medicine, University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region, China
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Abstract
The development of effective vaccines against fungal infections requires the induction of protective, pathogen-specific cell-mediated immune responses. Here, we asked whether combination adjuvants based on delta inulin (Advax) formulated with Toll-like receptor (TLR) agonists could improve vaccine protection mediated by a fungal recombinant protein, Bl-Eng2 (i.e., Blastomyces endoglucanase 2), which itself harbors an immunodominant antigen and dectin-2 agonist/adjuvant. We found that Bl-Eng2 formulated with Advax3 containing TLR9 agonist or Advax8 containing TLR4 agonist provided the best protection against pulmonary infection with Blastomyces dermatitidis, being more effective than complete Freund’s adjuvant or Adjuplex. Advax3 was most efficient in inducing gamma interferon (IFN-γ)- and interleukin-17 (IL-17)-producing antigen-specific T cells that migrated to the lung upon Blastomyces dermatitidis infection. Mechanistic studies revealed Bl-Eng2/Advax3 protection was tempered by neutralization of IL-17 and particularly IFN-γ. Likewise, greater numbers of lung-resident T cells producing IFN-γ, IL-17, or both IFN-γ and IL-17 correlated with fewer fungi recovered from lung. Protection was maintained after depletion of CD4+ T cells, partially reduced by depletion of CD8+ T cells, and completely eliminated after depletion of both CD4+ and CD8+ T cells. We conclude that Bl-Eng2 formulated with Advax3 is promising for eliciting vaccine-induced antifungal immunity, through a previously uncharacterized mechanism involving CD8+ and also CD4+ T cells producing IFN-γ and/or IL-17. Although no licensed vaccine exists as yet against any fungal disease, these findings indicate the importance of adjuvant selection for the development of effective fungal vaccines.
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Afinjuomo F, Abdella S, Youssef SH, Song Y, Garg S. Inulin and Its Application in Drug Delivery. Pharmaceuticals (Basel) 2021; 14:ph14090855. [PMID: 34577554 PMCID: PMC8468356 DOI: 10.3390/ph14090855] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 08/24/2021] [Accepted: 08/24/2021] [Indexed: 02/06/2023] Open
Abstract
Inulin’s unique and flexible structure, stabilization/protective effects, and organ targeting ability make it an excellent drug delivery carrier compared to other biodegradable polysaccharides. The three hydroxyl groups attached to each fructose unit serve as an anchor for chemical modification. This, in turn, helps in increasing bioavailability, improving cellular uptake, and achieving targeted, sustained, and controlled release of drugs and biomolecules. This review focuses on the various types of inulin drug delivery systems such as hydrogel, conjugates, nanoparticles, microparticles, micelles, liposomes, complexes, prodrugs, and solid dispersion. The preparation and applications of the different inulin drug delivery systems are further discussed. This work highlights the fact that modification of inulin allows the use of this polymer as multifunctional scaffolds for different drug delivery systems.
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Affiliation(s)
| | | | | | | | - Sanjay Garg
- Correspondence: ; Tel.: +61-88-302-1575; Fax: +61-88-302-2389
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31
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Sakala IG, Honda-Okubo Y, Li L, Baldwin J, Petrovsky N. A M2 protein-based universal influenza vaccine containing Advax-SM adjuvant provides newborn protection via maternal or neonatal immunization. Vaccine 2021; 39:5162-5172. [PMID: 34362601 DOI: 10.1016/j.vaccine.2021.07.037] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 07/10/2021] [Accepted: 07/14/2021] [Indexed: 02/01/2023]
Abstract
BACKGROUND Despite newborns being at increased risk of serious influenza infection, influenza vaccines are currently not recommended for use in infants under 6 months of age. We therefore sought to evaluate the protective efficacy in mice of an M2-based influenza vaccine (CapM2e) formulated with Advax-SM adjuvant. Vaccine protection was assessed via both passive maternal immunization and direct neonatal immunization. METHODS For maternal transfer studies, female mice were immunized 1 week before and after mating. Blood was collected from both mother and offspring during weaning and pups were challenged when they reached 3 weeks of age with lethal doses of H1N1 and homologous reassortment influenza strain H3N2 with conserved M2. For direct immunization studies, newborns were immunized at 1 and 3 weeks of age and blood was collected prior to challenge at 4 weeks of age. RESULTS Maternal immunization with CapM2e + Advax-SM vaccine induced high maternal M2e antibody levels that were passively transferred to their offspring and provided them with protection against both H1N1 and H3N2 influenza strains when challenged at 3 weeks of age. When used for direct immunization of neonatal mice, CapM2e + Advax-SM vaccine similarly induced high serum M2e antibody levels and protected against H1N1 and H3N2 influenza challenges with protection associated with inhibition of virus replication with a significant reduction in lung virus load in immunized pups. CONCLUSION CapM2e + Advax-SM vaccine could be useful for protecting newborns against diverse influenza A strains, with opportunities to achieve protection by passive maternal immunization or active neonatal immunization. This data supports further development of this promising M2e-based vaccine candidate.
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Affiliation(s)
- Isaac G Sakala
- Vaxine Pty Ltd, 11 Walkley Avenue, Adelaide 5046, Australia; College of Medicine and Public Health, Flinders University, Adelaide 5042, Australia
| | - Yoshikazu Honda-Okubo
- Vaxine Pty Ltd, 11 Walkley Avenue, Adelaide 5046, Australia; College of Medicine and Public Health, Flinders University, Adelaide 5042, Australia
| | - Lei Li
- Vaxine Pty Ltd, 11 Walkley Avenue, Adelaide 5046, Australia; College of Medicine and Public Health, Flinders University, Adelaide 5042, Australia
| | - Jeremy Baldwin
- Vaxine Pty Ltd, 11 Walkley Avenue, Adelaide 5046, Australia
| | - Nikolai Petrovsky
- Vaxine Pty Ltd, 11 Walkley Avenue, Adelaide 5046, Australia; College of Medicine and Public Health, Flinders University, Adelaide 5042, Australia.
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Liu W, Gong X, Luo J, Jiang L, Lu W, Pan C, Yao W, Gao X, Tian H. A purified acidic polysaccharide from Sarcandra glabra as vaccine adjuvant to enhance anti-tumor effect of cancer vaccine. Carbohydr Polym 2021; 263:117967. [PMID: 33858570 DOI: 10.1016/j.carbpol.2021.117967] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 02/28/2021] [Accepted: 03/16/2021] [Indexed: 12/11/2022]
Abstract
Immunological adjuvants are an important part of tumor vaccines and are critical for stimulating anti-tumor immune responses. However, the clinical needs of strong adjuvants have not been met. In this work, we found that the purified acidic polysaccharide from Sarcandra glabra, named p-SGP, is an ideal adjuvant for tumor vaccines. Cancer vaccines could induce stronger humoral and cellular immune responses when they are adjuvanted with p-SGP. Compared with CpG, a well-studied adjuvant, p-SGP significantly augmented the anti-tumor immunity of various cancer vaccines, which is leading to noticeable inhibition of tumor growth and metastasis in tumor-bearing mice. Moreover, p-SGP promoted dendritic cells (DCs) maturation and Th1-polarized immune response. Toll-like receptor 4 (TLR4) inhibitor TAK-242 could significantly inhibit the expression of mature molecules on the surface of DCs stimulated by p-SGP, suggesting that p-SGP could play the role of activating DCs through the TLR4 receptor. Results of RNA-seq showed that the Delta-like ligand 4 (DLL4) gene in the pathway Th1 and Th2 cell differentiation was significantly up-regulated in the DCs treated with p-SGP, suggesting that p-SGP has a unique mechanism of enhancing anti-tumor immunity.
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Affiliation(s)
- Wei Liu
- Jiangsu Key Laboratory of Druggability of Biopharmaceuticals and State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing, 210009, China
| | - Xingqun Gong
- Jiangsu Key Laboratory of Druggability of Biopharmaceuticals and State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing, 210009, China
| | - Jianhua Luo
- Jiangsu Key Laboratory of Druggability of Biopharmaceuticals and State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing, 210009, China
| | - Liangliang Jiang
- Jiangsu Key Laboratory of Druggability of Biopharmaceuticals and State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing, 210009, China
| | - Weisheng Lu
- Jiangsu Key Laboratory of Druggability of Biopharmaceuticals and State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing, 210009, China
| | - Chun Pan
- Department of Critical Care Medicine, Zhongda Hospital, Southeast University, Nanjing, 210009, China
| | - Wenbing Yao
- Jiangsu Key Laboratory of Druggability of Biopharmaceuticals and State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing, 210009, China
| | - Xiangdong Gao
- Jiangsu Key Laboratory of Druggability of Biopharmaceuticals and State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing, 210009, China.
| | - Hong Tian
- Jiangsu Key Laboratory of Druggability of Biopharmaceuticals and State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing, 210009, China.
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Biswas A, Mandal RS, Chakraborty S, Maiti G. Tapping the immunological imprints to design chimeric SARS-CoV-2 vaccine for elderly population. Int Rev Immunol 2021; 41:448-463. [PMID: 33978550 PMCID: PMC8127164 DOI: 10.1080/08830185.2021.1925267] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 04/14/2021] [Accepted: 04/23/2021] [Indexed: 01/10/2023]
Abstract
The impact of SARS-CoV-2 and COVID-19 disease susceptibility varies depending on the age and health status of an individual. Currently, there are more than 140 COVID-19 vaccines under development. However, the challenge will be to induce an effective immune response in the elderly population. Analysis of B cell epitopes indicates the minor role of the stalk domain of spike protein in viral neutralization due to low surface accessibility. Nevertheless, the accumulation of mutations in the receptor-binding domain (RBD) might reduce the vaccine efficacy in all age groups. We also propose the concept of chimeric vaccines based on the co-expression of SARS-CoV-2 spike and influenza hemagglutinin (HA) and matrix protein 1 (M1) proteins to generate chimeric virus-like particles (VLP). This review discusses the possible approaches by which influenza-specific memory repertoire developed during the lifetime of the elderly populations can converge to mount an effective immune response against the SARS-CoV-2 spike protein with the possibilities of designing single vaccines for COVID-19 and influenza. HighlightsImmunosenescence aggravates COVID-19 symptoms in elderly individuals.Low immunogenicity of SARS-CoV-2 vaccines in elderly population.Tapping the memory T and B cell repertoire in elderly can enhance vaccine efficiency.Chimeric vaccines can mount effective immune response against COVID-19 in elderly.Chimeric vaccines co-express SARS-CoV-2 spike and influenza HA and M1 proteins.
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Affiliation(s)
- Asim Biswas
- Department of Ophthalmology, New York University Grossman School of Medicine, New York, NY, USA
| | - Rahul Subhra Mandal
- Department of Cancer Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Suparna Chakraborty
- Division of Clinical Medicine, National Institute of Cholera and Enteric Diseases, Kolkata, India
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Xiao X, Hu S, Lai X, Peng J, Lai W. Developmental trend of immunoassays for monitoring hazards in food samples: A review. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.02.045] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Luczo JM, Bousse T, Johnson SK, Jones CA, Pearce N, Neiswanger CA, Wang MX, Miller EA, Petrovsky N, Wentworth DE, Bronshtein V, Papania M, Tompkins SM. Intranasal powder live attenuated influenza vaccine is thermostable, immunogenic, and protective against homologous challenge in ferrets. NPJ Vaccines 2021; 6:59. [PMID: 33883559 PMCID: PMC8060263 DOI: 10.1038/s41541-021-00320-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 03/10/2021] [Indexed: 02/06/2023] Open
Abstract
Influenza viruses cause annual seasonal epidemics and sporadic pandemics; vaccination is the most effective countermeasure. Intranasal live attenuated influenza vaccines (LAIVs) are needle-free, mimic the natural route of infection, and elicit robust immunity. However, some LAIVs require reconstitution and cold-chain requirements restrict storage and distribution of all influenza vaccines. We generated a dry-powder, thermostable LAIV (T-LAIV) using Preservation by Vaporization technology and assessed the stability, immunogenicity, and efficacy of T-LAIV alone or combined with delta inulin adjuvant (Advax™) in ferrets. Stability assays demonstrated minimal loss of T-LAIV titer when stored at 25 °C for 1 year. Vaccination of ferrets with T-LAIV alone or with delta inulin adjuvant elicited mucosal antibody and robust serum HI responses in ferrets, and was protective against homologous challenge. These results suggest that the Preservation by Vaporization-generated dry-powder vaccines could be distributed without refrigeration and administered without reconstitution or injection. Given these significant advantages for vaccine distribution and delivery, further research is warranted.
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Affiliation(s)
- Jasmina M Luczo
- Center for Vaccines and Immunology, University of Georgia, Athens, Georgia, USA
- Emory-UGA Centers of Excellence for Influenza Research and Surveillance (CEIRS), Athens, Georgia, 30602, USA
| | - Tatiana Bousse
- Influenza Division, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Scott K Johnson
- Center for Vaccines and Immunology, University of Georgia, Athens, Georgia, USA
| | - Cheryl A Jones
- Center for Vaccines and Immunology, University of Georgia, Athens, Georgia, USA
| | - Nicholas Pearce
- Influenza Division, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Carlie A Neiswanger
- Center for Vaccines and Immunology, University of Georgia, Athens, Georgia, USA
| | - Min-Xuan Wang
- Universal Stabilization Technologies, Inc., San Diego, California, USA
| | - Erin A Miller
- Universal Stabilization Technologies, Inc., San Diego, California, USA
| | - Nikolai Petrovsky
- College of Medicine and Public Health, Flinders University, Adelaide, South Australia, Australia
- Vaxine Pty Ltd, Warradale, South Australia, Australia
| | - David E Wentworth
- Influenza Division, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Victor Bronshtein
- Universal Stabilization Technologies, Inc., San Diego, California, USA
| | - Mark Papania
- Global Immunization Division, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Stephen M Tompkins
- Center for Vaccines and Immunology, University of Georgia, Athens, Georgia, USA.
- Emory-UGA Centers of Excellence for Influenza Research and Surveillance (CEIRS), Athens, Georgia, 30602, USA.
- Department of Infectious Diseases, University of Georgia, Athens, Georgia, USA.
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Advax-CpG Adjuvant Provides Antigen Dose-Sparing and Enhanced Immunogenicity for Inactivated Poliomyelitis Virus Vaccines. Pathogens 2021; 10:pathogens10050500. [PMID: 33919442 PMCID: PMC8143488 DOI: 10.3390/pathogens10050500] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Revised: 04/13/2021] [Accepted: 04/14/2021] [Indexed: 11/17/2022] Open
Abstract
Global immunization campaigns have resulted in a major decline in the global incidence of polio cases, with wild-type poliovirus remaining endemic in only two countries. Live oral polio vaccine (OPV) played a role in the reduction in polio case numbers; however, the risk of OPV developing into circulating vaccine-derived poliovirus makes it unsuitable for eradication programs. Trivalent inactivated polio virus (TIPV) vaccines which contain formalin-inactivated antigens produced from virulent types 1, 2 and 3 reference polio strains grown in Vero monkey kidney cells have been advocated as a replacement for OPV; however, TIPVs have weak immunogenicity and multiple boosts are required before peak neutralizing titers are reached. This study examined whether the incorporation of the novel polysaccharide adjuvant, Advax-CpG, could boost the immunogenicity of two TIPV vaccines, (i) a commercially available polio vaccine (IPOL®, Sanofi Pasteur) and (ii) a new TIPV formulation developed by Statens Serum Institut (SSI). Mice were immunized intramuscularly based on recommended vaccine dosage schedules and serum antibody titers were followed for 12 months post-immunization. Advax-CpG significantly enhanced the long-term immunogenicity of both TIPV vaccines and had at least a 10-fold antigen dose-sparing effect. An exception was the poor ability of the SSI TIPV to induce serotype type 1 neutralizing antibodies. Immunization with monovalent IPVs suggested that the low type 1 response to TIPV may be due to antigen competition when the type 1 antigen was co-formulated with the type 2 and 3 antigens. This study provides valuable insights into the complexity of the formulation of multivalent polio vaccines and supports the further development of adjuvanted antigen-sparing TIPV vaccines in the fight to eradicate polio.
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Pushparajah D, Jimenez S, Wong S, Alattas H, Nafissi N, Slavcev RA. Advances in gene-based vaccine platforms to address the COVID-19 pandemic. Adv Drug Deliv Rev 2021; 170:113-141. [PMID: 33422546 PMCID: PMC7789827 DOI: 10.1016/j.addr.2021.01.003] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 12/23/2020] [Accepted: 01/01/2021] [Indexed: 01/07/2023]
Abstract
The novel betacoronavirus, SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2), has spread across the globe at an unprecedented rate since its first emergence in Wuhan City, China in December 2019. Scientific communities around the world have been rigorously working to develop a potent vaccine to combat COVID-19 (coronavirus disease 2019), employing conventional and novel vaccine strategies. Gene-based vaccine platforms based on viral vectors, DNA, and RNA, have shown promising results encompassing both humoral and cell-mediated immune responses in previous studies, supporting their implementation for COVID-19 vaccine development. In fact, the U.S. Food and Drug Administration (FDA) recently authorized the emergency use of two RNA-based COVID-19 vaccines. We review current gene-based vaccine candidates proceeding through clinical trials, including their antigenic targets, delivery vehicles, and route of administration. Important features of previous gene-based vaccine developments against other infectious diseases are discussed in guiding the design and development of effective vaccines against COVID-19 and future derivatives.
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Affiliation(s)
- Deborah Pushparajah
- School of Pharmacy, University of Waterloo, 10A Victoria St S, Kitchener N2G 1C5, Canada
| | - Salma Jimenez
- School of Pharmacy, University of Waterloo, 10A Victoria St S, Kitchener N2G 1C5, Canada; Theraphage, 151 Charles St W Suite # 199, Kitchener, ON, N2G 1H6, Canada
| | - Shirley Wong
- School of Pharmacy, University of Waterloo, 10A Victoria St S, Kitchener N2G 1C5, Canada
| | - Hibah Alattas
- School of Pharmacy, University of Waterloo, 10A Victoria St S, Kitchener N2G 1C5, Canada
| | - Nafiseh Nafissi
- Mediphage Bioceuticals, 661 University Avenue, Suite 1300, Toronto, ON, M5G 0B7, Canada
| | - Roderick A Slavcev
- School of Pharmacy, University of Waterloo, 10A Victoria St S, Kitchener N2G 1C5, Canada; Mediphage Bioceuticals, 661 University Avenue, Suite 1300, Toronto, ON, M5G 0B7, Canada; Theraphage, 151 Charles St W Suite # 199, Kitchener, ON, N2G 1H6, Canada.
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Jelínková L, Jhun H, Eaton A, Petrovsky N, Zavala F, Chackerian B. An epitope-based malaria vaccine targeting the junctional region of circumsporozoite protein. NPJ Vaccines 2021; 6:13. [PMID: 33479242 PMCID: PMC7820318 DOI: 10.1038/s41541-020-00274-4] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 12/11/2020] [Indexed: 01/29/2023] Open
Abstract
A malaria vaccine that elicits long-lasting protection and is suitable for use in endemic areas remains urgently needed. Here, we assessed the immunogenicity and prophylactic efficacy of a vaccine targeting a recently described epitope on the major surface antigen on Plasmodium falciparum sporozoites, circumsporozoite protein (CSP). Using a virus-like particle (VLP)-based vaccine platform technology, we developed a vaccine that targets the junctional region between the N-terminal and central repeat regions of CSP. This region is recognized by monoclonal antibodies, including mAb CIS43, that have been shown to potently prevent liver invasion in animal models. We show that CIS43 VLPs elicit high-titer and long-lived anti-CSP antibody responses in mice and is immunogenic in non-human primates. In mice, vaccine immunogenicity was enhanced by using mixed adjuvant formulations. Immunization with CIS43 VLPs conferred partial protection from malaria infection in a mouse model, and passive transfer of serum from immunized macaques also inhibited parasite liver invasion in the mouse infection model. Our findings demonstrate that a Qβ VLP-based vaccine targeting the CIS43 epitope combined with various adjuvants is highly immunogenic in mice and macaques, elicits long-lasting anti-CSP antibodies, and inhibits parasite infection in a mouse model. Thus, the CIS43 VLP vaccine is a promising pre-erythrocytic malaria vaccine candidate.
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Affiliation(s)
- Lucie Jelínková
- grid.266832.b0000 0001 2188 8502Department of Molecular Genetics and Microbiology, University of New Mexico School of Medicine, Albuquerque, New Mexico USA
| | - Hugo Jhun
- grid.21107.350000 0001 2171 9311W. Harry Feinstone Department of Molecular Microbiology and Immunology, Malaria Research Institute, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD USA
| | - Allison Eaton
- grid.21107.350000 0001 2171 9311W. Harry Feinstone Department of Molecular Microbiology and Immunology, Malaria Research Institute, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD USA
| | - Nikolai Petrovsky
- grid.451447.7Vaxine Pty Ltd, 11 Walkley Avenue, Warradale, Adelaide, SA 5046 Australia ,grid.1014.40000 0004 0367 2697College of Medicine and Public Health, Flinders University, Adelaide, SA 5042 Australia
| | - Fidel Zavala
- grid.21107.350000 0001 2171 9311W. Harry Feinstone Department of Molecular Microbiology and Immunology, Malaria Research Institute, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD USA
| | - Bryce Chackerian
- grid.266832.b0000 0001 2188 8502Department of Molecular Genetics and Microbiology, University of New Mexico School of Medicine, Albuquerque, New Mexico USA
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Abstract
A DNA vaccine is a plasmid encoding a vaccine antigen together with an efficient eukaryotic promoter to drive protein expression. The chief problem of DNA vaccines has been their suboptimal immunogenicity in humans. Many different flaviviruses infect and cause serious illness and even death in humans, but human vaccines are not available against most of the relevant flaviviruses with the exception of Japanese encephalitis virus. DNA vaccines are easy and fast to produce at relatively low cost, do not require handling of dangerous pathogens, are stable at room temperature allowing for low-cost storage and transportation, and are highly versatile, allowing for rapid changes in coding sequence design and synthesis. This makes a DNA vaccine approach ideally suited for development as a broad-based flavivirus vaccine platform. However, to be useful as a flavivirus prophylactic vaccine platform in humans, a method would need to be found to enhance DNA vaccine immunogenicity without the need for the cumbersome and expensive equipment involved with electroporation. We describe here a protocol used to test different adjuvants with flavivirus DNA vaccines to determine an optimal formulation. An optimal regimen involving a DNA adjuvanted vaccine prime followed by an adjuvanted protein vaccine boost is described and can be applied by readers to solve barriers to the development of other DNA vaccines where immunogenicity is a problem.
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Huang WC, Zhou S, He X, Chiem K, Mabrouk MT, Nissly RH, Bird IM, Strauss M, Sambhara S, Ortega J, Wohlfert EA, Martinez-Sobrido L, Kuchipudi SV, Davidson BA, Lovell JF. SARS-CoV-2 RBD Neutralizing Antibody Induction is Enhanced by Particulate Vaccination. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020. [PMID: 33111375 DOI: 10.1002/adma.v32.5010.1002/adma.202005637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
The receptor-binding domain (RBD) of the SARS-CoV-2 spike protein is a candidate vaccine antigen that binds angiotensin-converting enzyme 2 (ACE2), leading to virus entry. Here, it is shown that rapid conversion of recombinant RBD into particulate form via admixing with liposomes containing cobalt-porphyrin-phospholipid (CoPoP) potently enhances the functional antibody response. Antigen binding via His-tag insertion into the CoPoP bilayer results in a serum-stable and conformationally intact display of the RBD on the liposome surface. Compared to other vaccine formulations, immunization using CoPoP liposomes admixed with recombinant RBD induces multiple orders of magnitude higher levels of antibody titers in mice that neutralize pseudovirus cell entry, block RBD interaction with ACE2, and inhibit live virus replication. Enhanced immunogenicity can be accounted for by greater RBD uptake into antigen-presenting cells in particulate form and improved immune cell infiltration in draining lymph nodes. QS-21 inclusion in the liposomes results in an enhanced antigen-specific polyfunctional T cell response. In mice, high dose immunization results in minimal local reactogenicity, is well-tolerated, and does not elevate serum cobalt levels. Taken together, these results confirm that particulate presentation strategies for the RBD immunogen should be considered for inducing strongly neutralizing antibody responses against SARS-CoV-2.
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Affiliation(s)
- Wei-Chiao Huang
- Department of Biomedical Engineering, University at Buffalo, State University of New York, Buffalo, NY, 14260, USA
| | - Shiqi Zhou
- Department of Biomedical Engineering, University at Buffalo, State University of New York, Buffalo, NY, 14260, USA
| | - Xuedan He
- Department of Biomedical Engineering, University at Buffalo, State University of New York, Buffalo, NY, 14260, USA
| | - Kevin Chiem
- Texas Biomedical Research Institute, San Antonio, TX, 78227, USA
| | - Moustafa T Mabrouk
- Department of Biomedical Engineering, University at Buffalo, State University of New York, Buffalo, NY, 14260, USA
| | - Ruth H Nissly
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA, 16802, USA
| | - Ian M Bird
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA, 16802, USA
| | - Mike Strauss
- Department of Anatomy and Cell Biology, McGill University Montreal, Quebec, H3A 0C7, Canada
| | - Suryaprakash Sambhara
- Immunology and Pathogenesis Branch, Centers for Disease Control and Prevention, 1600 Clifton Road, Atlanta, GA, 30329-4027, USA
| | - Joaquin Ortega
- Department of Anatomy and Cell Biology, McGill University Montreal, Quebec, H3A 0C7, Canada
| | - Elizabeth A Wohlfert
- Department of Microbiology and Immunology, University at Buffalo, State University of New York, Buffalo, NY, 14203, USA
| | | | - Suresh V Kuchipudi
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA, 16802, USA
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Center for Infectious Disease Dynamics, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Bruce A Davidson
- Department of Anesthesiology, Department of Pathology and Anatomical Sciences, University at Buffalo, State University of New York, Buffalo, NY, 14203, USA
| | - Jonathan F Lovell
- Department of Biomedical Engineering, University at Buffalo, State University of New York, Buffalo, NY, 14260, USA
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Huang W, Zhou S, He X, Chiem K, Mabrouk MT, Nissly RH, Bird IM, Strauss M, Sambhara S, Ortega J, Wohlfert EA, Martinez‐Sobrido L, Kuchipudi SV, Davidson BA, Lovell JF. SARS-CoV-2 RBD Neutralizing Antibody Induction is Enhanced by Particulate Vaccination. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2005637. [PMID: 33111375 PMCID: PMC7645956 DOI: 10.1002/adma.202005637] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 09/25/2020] [Indexed: 05/21/2023]
Abstract
The receptor-binding domain (RBD) of the SARS-CoV-2 spike protein is a candidate vaccine antigen that binds angiotensin-converting enzyme 2 (ACE2), leading to virus entry. Here, it is shown that rapid conversion of recombinant RBD into particulate form via admixing with liposomes containing cobalt-porphyrin-phospholipid (CoPoP) potently enhances the functional antibody response. Antigen binding via His-tag insertion into the CoPoP bilayer results in a serum-stable and conformationally intact display of the RBD on the liposome surface. Compared to other vaccine formulations, immunization using CoPoP liposomes admixed with recombinant RBD induces multiple orders of magnitude higher levels of antibody titers in mice that neutralize pseudovirus cell entry, block RBD interaction with ACE2, and inhibit live virus replication. Enhanced immunogenicity can be accounted for by greater RBD uptake into antigen-presenting cells in particulate form and improved immune cell infiltration in draining lymph nodes. QS-21 inclusion in the liposomes results in an enhanced antigen-specific polyfunctional T cell response. In mice, high dose immunization results in minimal local reactogenicity, is well-tolerated, and does not elevate serum cobalt levels. Taken together, these results confirm that particulate presentation strategies for the RBD immunogen should be considered for inducing strongly neutralizing antibody responses against SARS-CoV-2.
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Affiliation(s)
- Wei‐Chiao Huang
- Department of Biomedical EngineeringUniversity at BuffaloState University of New YorkBuffaloNY14260USA
| | - Shiqi Zhou
- Department of Biomedical EngineeringUniversity at BuffaloState University of New YorkBuffaloNY14260USA
| | - Xuedan He
- Department of Biomedical EngineeringUniversity at BuffaloState University of New YorkBuffaloNY14260USA
| | - Kevin Chiem
- Texas Biomedical Research InstituteSan AntonioTX78227USA
| | - Moustafa T. Mabrouk
- Department of Biomedical EngineeringUniversity at BuffaloState University of New YorkBuffaloNY14260USA
| | - Ruth H. Nissly
- Animal Diagnostic LaboratoryDepartment of Veterinary and Biomedical SciencesPennsylvania State UniversityUniversity ParkPA16802USA
| | - Ian M. Bird
- Animal Diagnostic LaboratoryDepartment of Veterinary and Biomedical SciencesPennsylvania State UniversityUniversity ParkPA16802USA
| | - Mike Strauss
- Department of Anatomy and Cell BiologyMcGill University MontrealQuebecH3A 0C7Canada
| | - Suryaprakash Sambhara
- Immunology and Pathogenesis BranchCenters for Disease Control and Prevention1600 Clifton RoadAtlantaGA30329‐4027USA
| | - Joaquin Ortega
- Department of Anatomy and Cell BiologyMcGill University MontrealQuebecH3A 0C7Canada
| | - Elizabeth A. Wohlfert
- Department of Microbiology and ImmunologyUniversity at BuffaloState University of New YorkBuffaloNY14203USA
| | | | - Suresh V. Kuchipudi
- Animal Diagnostic LaboratoryDepartment of Veterinary and Biomedical SciencesPennsylvania State UniversityUniversity ParkPA16802USA
- Animal Diagnostic LaboratoryDepartment of Veterinary and Biomedical SciencesThe Center for Infectious Disease DynamicsThe Pennsylvania State UniversityUniversity ParkPA16802USA
| | - Bruce A. Davidson
- Department of AnesthesiologyDepartment of Pathology and Anatomical SciencesUniversity at BuffaloState University of New YorkBuffaloNY14203USA
| | - Jonathan F. Lovell
- Department of Biomedical EngineeringUniversity at BuffaloState University of New YorkBuffaloNY14260USA
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Corder BN, Bullard BL, Poland GA, Weaver EA. A Decade in Review: A Systematic Review of Universal Influenza Vaccines in Clinical Trials during the 2010 Decade. Viruses 2020; 12:E1186. [PMID: 33092070 PMCID: PMC7589362 DOI: 10.3390/v12101186] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 10/14/2020] [Accepted: 10/16/2020] [Indexed: 12/31/2022] Open
Abstract
On average, there are 3-5 million severe cases of influenza virus infections globally each year. Seasonal influenza vaccines provide limited protection against divergent influenza strains. Therefore, the development of a universal influenza vaccine is a top priority for the NIH. Here, we report a comprehensive summary of all universal influenza vaccines that were tested in clinical trials during the 2010-2019 decade. Of the 1597 studies found, 69 eligible clinical trials, which investigated 27 vaccines, were included in this review. Information from each trial was compiled for vaccine target, vaccine platform, adjuvant inclusion, clinical trial phase, and results. As we look forward, there are currently three vaccines in phase III clinical trials which could provide significant improvement over seasonal influenza vaccines. This systematic review of universal influenza vaccine clinical trials during the 2010-2019 decade provides an update on the progress towards an improved influenza vaccine.
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Affiliation(s)
- Brigette N. Corder
- School of Biological Sciences, Nebraska Center for Virology, University of Nebraska-Lincoln, 4240 Fair Street, Lincoln, NE 68503, USA; (B.N.C.); (B.L.B.)
| | - Brianna L. Bullard
- School of Biological Sciences, Nebraska Center for Virology, University of Nebraska-Lincoln, 4240 Fair Street, Lincoln, NE 68503, USA; (B.N.C.); (B.L.B.)
| | - Gregory A. Poland
- Mayo Vaccine Research Group, General Internal Medicine, Mayo Clinic, Rochester, MN 55902, USA;
| | - Eric A. Weaver
- School of Biological Sciences, Nebraska Center for Virology, University of Nebraska-Lincoln, 4240 Fair Street, Lincoln, NE 68503, USA; (B.N.C.); (B.L.B.)
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43
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Extracellular polysaccharides produced by bacteria of the Leuconostoc genus. World J Microbiol Biotechnol 2020; 36:161. [DOI: 10.1007/s11274-020-02937-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 09/16/2020] [Indexed: 10/23/2022]
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Gupta T, Gupta SK. Potential adjuvants for the development of a SARS-CoV-2 vaccine based on experimental results from similar coronaviruses. Int Immunopharmacol 2020; 86:106717. [PMID: 32585611 PMCID: PMC7301105 DOI: 10.1016/j.intimp.2020.106717] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Revised: 06/03/2020] [Accepted: 06/15/2020] [Indexed: 02/06/2023]
Abstract
The extensive efforts around the globe are being made to develop a suitable vaccine against COVID-19 (Coronavirus Disease-19) caused by SARS-CoV-2 (Severe Acute Respiratory Syndrome Coronavirus-2). An effective vaccine should be able to induce high titers of neutralizing antibodies to prevent the virus from attaching to the host cell receptors. However, to elicit the protective levels of antibodies, a vaccine may require multiple doses or assistance from other immunostimulatory molecules. Further, the vaccine should be able to induce protective levels of antibodies rapidly with the least amount of antigen used. This decreases the cost of a vaccine and makes it affordable. As the pandemic has hit most countries across the globe, there will be an overwhelming demand for the vaccine in a quick time. Incorporating a suitable adjuvant in a SARS-CoV-2 vaccine may address these requirements. This review paper will discuss the experimental results of the adjuvanted vaccine studies with similar coronaviruses (CoVs) which might be useful to select an appropriate adjuvant for a vaccine against rapidly emergingSARS-CoV-2. We also discuss the current progress in the development of adjuvanted vaccines against the disease.
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Affiliation(s)
- Tania Gupta
- Dr GC Negi College of Veterinary and Animal Sciences, Palampur 176062, Himachal Pradesh, India.
| | - Shishir K Gupta
- CSIR-Central Drug Research Institute, Lucknow 226031, Uttar Pradesh, India
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Di Sotto A, Vitalone A, Di Giacomo S. Plant-Derived Nutraceuticals and Immune System Modulation: An Evidence-Based Overview. Vaccines (Basel) 2020; 8:E468. [PMID: 32842641 PMCID: PMC7563161 DOI: 10.3390/vaccines8030468] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 08/17/2020] [Accepted: 08/19/2020] [Indexed: 12/15/2022] Open
Abstract
Immunomodulators are agents able to affect the immune system, by boosting the immune defences to improve the body reaction against infectious or exogenous injuries, or suppressing the abnormal immune response occurring in immune disorders. Moreover, immunoadjuvants can support immune system acting on nonimmune targets, thus improving the immune response. The modulation of inflammatory pathways and microbiome can also contribute to control the immune function. Some plant-based nutraceuticals have been studied as possible immunomodulating agents due to their multiple and pleiotropic effects. Being usually more tolerable than pharmacological treatments, their adjuvant contribution is approached as a desirable nutraceutical strategy. In the present review, the up to date knowledge about the immunomodulating properties of polysaccharides, fatty acids and labdane diterpenes have been analyzed, in order to give scientific basic and clinical evidence to support their practical use. Since promising evidence in preclinical studies, limited and sometimes confusing results have been highlighted in clinical trials, likely due to low methodological quality and lacking standardization. More investigations of high quality and specificity are required to describe in depth the usefulness of these plant-derived nutraceuticals in the immune system modulation, for health promoting and disease preventing purposes.
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Affiliation(s)
- Antonella Di Sotto
- Department of Physiology and Pharmacology, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy;
| | - Annabella Vitalone
- Department of Physiology and Pharmacology, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy;
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Epiphanies of well-known and newly discovered macromolecular carbohydrates – A review. Int J Biol Macromol 2020; 156:51-66. [DOI: 10.1016/j.ijbiomac.2020.04.046] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Revised: 03/08/2020] [Accepted: 04/03/2020] [Indexed: 12/16/2022]
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Vet LJ, Setoh YX, Amarilla AA, Habarugira G, Suen WW, Newton ND, Harrison JJ, Hobson-Peters J, Hall RA, Bielefeldt-Ohmann H. Protective Efficacy of a Chimeric Insect-Specific Flavivirus Vaccine against West Nile Virus. Vaccines (Basel) 2020; 8:vaccines8020258. [PMID: 32485930 PMCID: PMC7349994 DOI: 10.3390/vaccines8020258] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 05/25/2020] [Accepted: 05/27/2020] [Indexed: 12/01/2022] Open
Abstract
Virulent strains of West Nile virus (WNV) are highly neuro-invasive and human infection is potentially lethal. However, no vaccine is currently available for human use. Here, we report the immunogenicity and protective efficacy of a vaccine derived from a chimeric virus, which was constructed using the structural proteins (prM and E) of the Kunjin strain of WNV (WNVKUN) and the genome backbone of the insect-specific flavivirus Binjari virus (BinJV). This chimeric virus (BinJ/WNVKUN-prME) exhibits an insect-specific phenotype and does not replicate in vertebrate cells. Importantly, it authentically presents the prM-E proteins of WNVKUN, which is antigenically very similar to other WNV strains and lineages. Therefore BinJ/WNVKUN-prME represents an excellent candidate to assess as a vaccine against virulent WNV strains, including the highly pathogenic WNVNY99. When CD1 mice were immunized with purified BinJ/WNVKUN-prME, they developed robust neutralizing antibody responses after a single unadjuvanted dose of 1 to 5 μg. We further demonstrated complete protection against viremia and mortality after lethal challenge with WNVNY99, with no clinical or subclinical pathology observed in vaccinated animals. These data suggest that BinJ/WNVKUN-prME represents a safe and effective WNV vaccine candidate that warrants further investigation for use in humans or in veterinary applications.
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Affiliation(s)
- Laura J. Vet
- School of Chemistry and Molecular Biosciences, University of Queensland, St Lucia, Queensland 4072, Australia; (L.J.V.); (Y.X.S.); (A.A.A.); (W.W.S.); (N.D.N.); (J.J.H.); (J.H.-P.)
| | - Yin Xiang Setoh
- School of Chemistry and Molecular Biosciences, University of Queensland, St Lucia, Queensland 4072, Australia; (L.J.V.); (Y.X.S.); (A.A.A.); (W.W.S.); (N.D.N.); (J.J.H.); (J.H.-P.)
| | - Alberto A. Amarilla
- School of Chemistry and Molecular Biosciences, University of Queensland, St Lucia, Queensland 4072, Australia; (L.J.V.); (Y.X.S.); (A.A.A.); (W.W.S.); (N.D.N.); (J.J.H.); (J.H.-P.)
| | - Gervais Habarugira
- School of Veterinary Science, University of Queensland Gatton Campus, Queensland 4343, Australia;
| | - Willy W. Suen
- School of Chemistry and Molecular Biosciences, University of Queensland, St Lucia, Queensland 4072, Australia; (L.J.V.); (Y.X.S.); (A.A.A.); (W.W.S.); (N.D.N.); (J.J.H.); (J.H.-P.)
| | - Natalee D. Newton
- School of Chemistry and Molecular Biosciences, University of Queensland, St Lucia, Queensland 4072, Australia; (L.J.V.); (Y.X.S.); (A.A.A.); (W.W.S.); (N.D.N.); (J.J.H.); (J.H.-P.)
| | - Jessica J. Harrison
- School of Chemistry and Molecular Biosciences, University of Queensland, St Lucia, Queensland 4072, Australia; (L.J.V.); (Y.X.S.); (A.A.A.); (W.W.S.); (N.D.N.); (J.J.H.); (J.H.-P.)
| | - Jody Hobson-Peters
- School of Chemistry and Molecular Biosciences, University of Queensland, St Lucia, Queensland 4072, Australia; (L.J.V.); (Y.X.S.); (A.A.A.); (W.W.S.); (N.D.N.); (J.J.H.); (J.H.-P.)
- Australian Infectious Diseases Research Centre, University of Queensland, St Lucia, Queensland 4072, Australia
| | - Roy A. Hall
- School of Chemistry and Molecular Biosciences, University of Queensland, St Lucia, Queensland 4072, Australia; (L.J.V.); (Y.X.S.); (A.A.A.); (W.W.S.); (N.D.N.); (J.J.H.); (J.H.-P.)
- Australian Infectious Diseases Research Centre, University of Queensland, St Lucia, Queensland 4072, Australia
- Correspondence: (R.A.H.); (H.B.-O.)
| | - Helle Bielefeldt-Ohmann
- School of Chemistry and Molecular Biosciences, University of Queensland, St Lucia, Queensland 4072, Australia; (L.J.V.); (Y.X.S.); (A.A.A.); (W.W.S.); (N.D.N.); (J.J.H.); (J.H.-P.)
- School of Veterinary Science, University of Queensland Gatton Campus, Queensland 4343, Australia;
- Australian Infectious Diseases Research Centre, University of Queensland, St Lucia, Queensland 4072, Australia
- Correspondence: (R.A.H.); (H.B.-O.)
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Stronsky SM, Cooper CL, Steffens J, Van Tongeren S, Bavari S, Martins KA, Petrovsky N. Adjuvant selection impacts the correlates of vaccine protection against Ebola infection. Vaccine 2020; 38:4601-4608. [PMID: 32418798 DOI: 10.1016/j.vaccine.2020.05.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 02/23/2020] [Accepted: 05/04/2020] [Indexed: 01/13/2023]
Abstract
The establishment of correlates of protection is particularly relevant in the context of rare, highly lethal pathogens such as filoviruses. We previously demonstrated that an Ebola glycoprotein virus-like particle (VLP) vaccine, when given as two intramuscular doses, conferred protection from challenge in a murine challenge model. In this study, we compared the ability of Advax inulin-based adjuvant formulations (Advax1-4) to enhance Ebola VLP vaccine protection in mice. After two immunizations, Advax-adjuvants that included a TLR9 agonist component induced high IgG responses, with complete protection against Ebola virus challenge. Although anti-Ebola IgG levels waned over time, protection was durable and was still evident 150 days post-immunization. Mice were protected after just a single VLP immunization with Advax-2 or -4 adjuvants. Advax-adjuvanted VLPs induced a stronger IFN-γ, TNF and IL-12 signature and serum transferred from Advax-adjuvanted vaccinees was able to transfer protection to naïve animals, showing that Ebola protection can be achieved by antibodies in the absence of cellular immunity. By contrast, serum from vaccinees incorporating a pICLC adjuvant did not transfer protection despite high IgG levels on ELISA. These data highlight the importance of adjuvant selection for development of a successful Ebola VLP vaccine.
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Affiliation(s)
- Sabrina M Stronsky
- Molecular and Translational Sciences, United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, MD 21702, United States
| | - Christopher L Cooper
- Molecular and Translational Sciences, United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, MD 21702, United States
| | - Jesse Steffens
- Molecular and Translational Sciences, United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, MD 21702, United States
| | - Sean Van Tongeren
- Molecular and Translational Sciences, United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, MD 21702, United States
| | - Sina Bavari
- Molecular and Translational Sciences, United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, MD 21702, United States
| | - Karen A Martins
- Molecular and Translational Sciences, United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, MD 21702, United States
| | - Nikolai Petrovsky
- Vaxine Pty Ltd., Bedford Park, Adelaide 5042, Australia; Flinders University, Adelaide 5042, Australia.
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Nanomaterials and nanocomposite applications in veterinary medicine. MULTIFUNCTIONAL HYBRID NANOMATERIALS FOR SUSTAINABLE AGRI-FOOD AND ECOSYSTEMS 2020. [PMCID: PMC7252256 DOI: 10.1016/b978-0-12-821354-4.00024-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Nowadays, nanotechnology has made huge, significant advancements in biotechnology and biomedicine related to human and animal science, including increasing health safety, production, and the elevation of national income. There are various fields of nanomaterial applications in veterinary medicine such as efficient diagnostic and therapeutic tools, drug delivery, animal nutrition, breeding and reproduction, and valuable additives. Additional benefits include the detection of pathogens, protein, biological molecules, antimicrobial agents, feeding additives, nutrient delivery, and reproductive aids. There are many nanomaterials and nanocomposites that can be used in nanomedicine such as metal nanoparticles, liposomes, carbon nanotubes, and quantum dots. In the near future, nanotechnology research will have the ability to produce novel tools for improving animal health and production. Therefore, this chapter was undertaken to spotlight novel methods created by nanotechnology for application in the improvement of animal health and production. In addition, the toxicity of nanomaterials is fully discussed to avoid the suspected health hazards of toxicity for animal health safety.
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Liu K, Yin Y, Zhang J, Zai X, Li R, Ma H, Xu J, Shan J, Chen W. Polysaccharide PCP-I isolated from Poria cocos enhances the immunogenicity and protection of an anthrax protective antigen-based vaccine. Hum Vaccin Immunother 2019; 16:1699-1707. [PMID: 31809637 DOI: 10.1080/21645515.2019.1675457] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023] Open
Abstract
Polysaccharides isolated from natural plants may represent a novel source of vaccine adjuvants. In this research, we focused on a natural plant polysaccharide, PCP-I, which is derived from Poria cocos, a Chinese traditional herbal medicine. We chose the anthrax protective antigen (PA) as a model to evaluate the adjuvant ability of PCP-I in enhancing the immunogenicity and protection of a PA-based anthrax vaccine. According to our results, PCP-I could significantly enhance anthrax specific anti-PA antibodies, toxin-neutralizing antibodies, anti-PA antibody affinity, as well as IgG1 and IgG2a levels. Besides, PCP-I increased the frequency of PA-specific memory B cells, increased the proliferation of PA-specific splenocytes, significantly stimulated the secretion of IL-4, and enhanced the activation of Dendritic cells (DCs) in vitro. The combination of PCP-I and CpG significantly enhanced the level of anti-PA antibodies and neutralizing antibodies, particularly PA-specific IgG2a, and shifted the Th2-bias to a Th1/Th2 balanced response. In addition, PCP-I with or without CpG could significantly improve the survival rate of immunized mice following challenge with the anthrax lethal toxin. These findings suggest that PCP-I may be a promising vaccine adjuvant that warrants further study.
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Affiliation(s)
- Kun Liu
- Laboratory of Vaccine and Antibody Engineering, Beijing Institute of Biotechnology , Beijing, China
| | - Ying Yin
- Laboratory of Vaccine and Antibody Engineering, Beijing Institute of Biotechnology , Beijing, China
| | - Jun Zhang
- Laboratory of Vaccine and Antibody Engineering, Beijing Institute of Biotechnology , Beijing, China
| | - Xiaodong Zai
- Laboratory of Vaccine and Antibody Engineering, Beijing Institute of Biotechnology , Beijing, China
| | - Ruihua Li
- Laboratory of Vaccine and Antibody Engineering, Beijing Institute of Biotechnology , Beijing, China
| | - Hao Ma
- Institute of Pharmacology and Toxicology , Academy of Military Medical Sciences, Beijing, China
| | - Junjie Xu
- Laboratory of Vaccine and Antibody Engineering, Beijing Institute of Biotechnology , Beijing, China
| | - Junjie Shan
- Institute of Pharmacology and Toxicology , Academy of Military Medical Sciences, Beijing, China
| | - Wei Chen
- Laboratory of Vaccine and Antibody Engineering, Beijing Institute of Biotechnology , Beijing, China
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