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Adam A, Shi Q, Wang B, Zou J, Mai J, Osman SR, Wu W, Xie X, Aguilar PV, Bao X, Shi PY, Shen H, Wang T. A modified porous silicon microparticle potentiates protective systemic and mucosal immunity for SARS-CoV-2 subunit vaccine. Transl Res 2022; 249:13-27. [PMID: 35688318 PMCID: PMC9173827 DOI: 10.1016/j.trsl.2022.06.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 05/30/2022] [Accepted: 06/02/2022] [Indexed: 11/28/2022]
Abstract
Development of optimal SARS-CoV-2 vaccines to induce potent, long-lasting immunity and provide cross-reactive protection against emerging variants remains a high priority. Here, we report that a modified porous silicon microparticle (mPSM) adjuvant to SARS-CoV-2 receptor-binding domain (RBD) vaccine activated dendritic cells and generated more potent and durable systemic humoral and type 1 helper T (Th) cell- mediated immune responses than alum-formulated RBD following parenteral vaccination, and protected mice from SARS-CoV-2 and Beta variant challenge. Notably, mPSM facilitated the uptake of SARS-CoV-2 RBD antigens by nasal and airway epithelial cells. Parenteral and intranasal prime and boost vaccinations with mPSM-RBD elicited stronger lung resident T and B cells and IgA responses compared to parenteral vaccination alone, which led to markedly diminished viral loads and inflammation in the lung following SARS-CoV-2 Delta variant challenge. Overall, our results suggest that mPSM is effective adjuvant for SARS-CoV-2 subunit vaccine in both systemic and mucosal vaccinations.
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Key Words
- mpsm, modified porous silicon microparticle
- covid-19, coronavirus disease 2019
- rbd, receptor-binding domain
- sars-cov-2, severe acute respiratory syndrome coronavirus 2
- β-cov, betacoronavirus
- e, envelope
- m, membrane
- n, nucleocapsid
- hace2, human angiotensin-converting enzyme 2
- nabs, neutralizing antibodies
- dc, dendritic cell
- th1, t helper 1
- cpg, cytosine guanosine dinucleotide
- cgamp, cyclic gamp
- bm, bone marrow
- i.p., intraperitoneally
- i.d., intradermally
- i.m., or intramuscularly
- tmb, tetramethylbenzidine
- pbs-t, phosphate-buffered saline containing tween-20
- bal, bronchoalveolar lavage
- hrp, horseradish peroxidase
- elisa, enzyme-linked immunosorbent assay
- elispot, enzyme-linked immune absorbent spot
- sfc, spot-forming cells
- ics, intracellular cytokine staining
- moi, multiplicity of infection
- apc, antigen presenting cells
- mbc, memory b cell
- asc, antibody secreting cells
- prnt, plaque reduction neutralization test
- saec, small airway epithelial cells
- nalt, nasal-associated lymphoid tissue
- ade, antibody-dependent enhancement
- q-pcr, quantitative pcr
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Affiliation(s)
- Awadalkareem Adam
- Department of Microbiology & Immunology, University of Texas Medical Branch, Galveston, Texas
| | - Qing Shi
- Department of Nanomedicine, Houston Methodist Academic Institute, Houston, Texas
| | - Binbin Wang
- Department of Microbiology & Immunology, University of Texas Medical Branch, Galveston, Texas
| | - Jing Zou
- Department of Biochemistry & Molecular Biology, University of Texas Medical Branch, Galveston, Texas
| | - Junhua Mai
- Department of Nanomedicine, Houston Methodist Academic Institute, Houston, Texas
| | - Samantha R Osman
- Department of Microbiology & Immunology, University of Texas Medical Branch, Galveston, Texas
| | - Wenzhe Wu
- Department of Pediatrics, The University of Texas Medical Branch, Galveston, Texas
| | - Xuping Xie
- Department of Biochemistry & Molecular Biology, University of Texas Medical Branch, Galveston, Texas
| | - Patricia V Aguilar
- Department of Pathology, University of Texas Medical Branch, Galveston, Texas; Sealy Institute for Vaccine Sciences, University of Texas Medical Branch, Galveston, Texas; Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, Texas
| | - Xiaoyong Bao
- Department of Pediatrics, The University of Texas Medical Branch, Galveston, Texas; Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, Texas
| | - Pei-Yong Shi
- Department of Biochemistry & Molecular Biology, University of Texas Medical Branch, Galveston, Texas; Sealy Institute for Vaccine Sciences, University of Texas Medical Branch, Galveston, Texas; Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, Texas
| | - Haifa Shen
- Department of Nanomedicine, Houston Methodist Academic Institute, Houston, Texas; Innovative Therapeutic Program, Houston Methodist Cancer Center, Houston, Texas; ImmunoQ Therapeutics, Houston, Texas.
| | - Tian Wang
- Department of Microbiology & Immunology, University of Texas Medical Branch, Galveston, Texas; Department of Pathology, University of Texas Medical Branch, Galveston, Texas; Sealy Institute for Vaccine Sciences, University of Texas Medical Branch, Galveston, Texas; Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, Texas
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Adam A, Shi Q, Wang B, Zou J, Mai J, Osman SR, Wu W, Xie X, Aguilar PV, Bao X, Shi PY, Shen H, Wang T. A modified porous silicon microparticle promotes mucosal delivery of SARS-CoV-2 antigen and induction of potent and durable systemic and mucosal T helper 1 skewed protective immunity. bioRxiv 2021. [PMID: 34845456 DOI: 10.1101/2021.11.22.469576] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Development of optimal SARS-CoV-2 vaccines to induce potent, long-lasting immunity and provide cross-reactive protection against emerging variants remains a high priority. Here, we report that a modified porous silicon microparticle (mPSM)-adjuvanted SARS-CoV-2 receptor-binding domain (RBD) vaccine activated dendritic cells and generated more potent and durable SARS-CoV-2-specific systemic humoral and type 1 helper T (Th) cell-mediated immune responses than alum-formulated RBD following parenteral vaccination, and protected mice from SARS-CoV-2 and Beta variant infection. mPSM facilitated the uptake of SARS-CoV-2 RBD antigens by nasal and airway epithelial cells. Parenteral and intranasal prime and boost vaccinations with mPSM-RBD elicited potent systemic and lung resident memory T and B cells and SARS-CoV-2 specific IgA responses, and markedly diminished viral loads and inflammation in the lung following SARS-CoV-2 Delta variant infection. Our results suggest that mPSM can serve as potent adjuvant for SARS-CoV-2 subunit vaccine which is effective for systemic and mucosal vaccination.
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Adam A, Luo H, Osman SR, Wang B, Roundy CM, Auguste AJ, Plante KS, Peng BH, Thangamani S, Frolova EI, Frolov I, Weaver SC, Wang T. Optimized production and immunogenicity of an insect virus-based chikungunya virus candidate vaccine in cell culture and animal models. Emerg Microbes Infect 2021; 10:305-316. [PMID: 33539255 PMCID: PMC7919884 DOI: 10.1080/22221751.2021.1886598] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A chimeric Eilat/ Chikungunya virus (EILV/CHIKV) was previously reported to replicate only in mosquito cells but capable of inducing robust adaptive immunity in animals. Here, we initially selected C7/10 cells to optimize the production of the chimeric virus. A two-step procedure produced highly purified virus stocks, which was shown to not cause hypersensitive reactions in a mouse sensitization study. We further optimized the dose and characterized the kinetics of EILV/CHIKV-induced immunity. A single dose of 108 PFU was sufficient for induction of high levels of CHIKV-specific IgM and IgG antibodies, memory B cell and CD8+ T cell responses. Compared to the live-attenuated CHIKV vaccine 181/25, EILV/CHIKV induced similar levels of CHIKV-specific memory B cells, but higher CD8+ T cell responses at day 28. It also induced stronger CD8+, but lower CD4+ T cell responses than another live-attenuated CHIKV strain (CHIKV/IRES) at day 55 post-vaccination. Lastly, the purified EILV/CHIKV triggered antiviral cytokine responses and activation of antigen presenting cell (APC)s in vivo, but did not induce APCs alone upon in vitro exposure. Overall, our results demonstrate that the EILV/CHIKV vaccine candidate is safe, inexpensive to produce and a potent inducer of both innate and adaptive immunity in mice.
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Affiliation(s)
- Awadalkareem Adam
- Department of Microbiology & Immunology, University of Texas Medical Branch, Galveston, TX, USA
| | - Huanle Luo
- Department of Microbiology & Immunology, University of Texas Medical Branch, Galveston, TX, USA
| | - Samantha R Osman
- Department of Microbiology & Immunology, University of Texas Medical Branch, Galveston, TX, USA
| | - Binbin Wang
- Department of Microbiology & Immunology, University of Texas Medical Branch, Galveston, TX, USA
| | - Christopher M Roundy
- Department of Microbiology & Immunology, University of Texas Medical Branch, Galveston, TX, USA
| | - Albert J Auguste
- Department of Microbiology & Immunology, University of Texas Medical Branch, Galveston, TX, USA.,Department of Entomology, Fralin Life Science Institute, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA.,Center for Emerging, Zoonotic, and Arthropod-borne Pathogens, Virginia Tech, Blacksburg, VA, USA
| | - Kenneth S Plante
- World Reference Center for Emerging Viruses and Arboviruses, Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, TX, USA
| | - Bi-Hung Peng
- Department of Neuroscience, Cell Biology and Anatomy, University of Texas Medical Branch, Galveston, TX, USA
| | - Saravanan Thangamani
- Department of Microbiology and Immunology, SUNY Upstate Medical University, Syracuse, NY, USA
| | - Elena I Frolova
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Ilya Frolov
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Scott C Weaver
- Department of Microbiology & Immunology, University of Texas Medical Branch, Galveston, TX, USA.,World Reference Center for Emerging Viruses and Arboviruses, Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, TX, USA.,Sealy Institute for Vaccine Sciences, University of Texas Medical Branch, Galveston, TX, USA.,Department of Pathology, University of Texas Medical Branch, Galveston, TX, USA
| | - Tian Wang
- Department of Microbiology & Immunology, University of Texas Medical Branch, Galveston, TX, USA.,Sealy Institute for Vaccine Sciences, University of Texas Medical Branch, Galveston, TX, USA.,Department of Pathology, University of Texas Medical Branch, Galveston, TX, USA
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Adam A, Fontes-Garfias CR, Sarathy VV, Liu Y, Luo H, Davis E, Li W, Muruato AE, Wang B, Ahatov R, Mahmoud Y, Shan C, Osman SR, Widen SG, Barrett ADT, Shi PY, Wang T. A genetically stable Zika virus vaccine candidate protects mice against virus infection and vertical transmission. NPJ Vaccines 2021; 6:27. [PMID: 33597526 PMCID: PMC7889622 DOI: 10.1038/s41541-021-00288-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Accepted: 01/15/2021] [Indexed: 12/20/2022] Open
Abstract
Although live attenuated vaccines (LAVs) have been effective in the control of flavivirus infections, to date they have been excluded from Zika virus (ZIKV) vaccine trials due to safety concerns. We have previously reported two ZIKV mutants, each of which has a single substitution in either envelope (E) glycosylation or nonstructural (NS) 4B P36 and displays a modest reduction in mouse neurovirulence and neuroinvasiveness, respectively. Here, we generated a ZIKV mutant, ZE4B-36, which combines mutations in both E glycosylation and NS4B P36. The ZE4B-36 mutant is stable and attenuated in viral replication. Next-generation sequence analysis showed that the attenuating mutations in the E and NS4B proteins are retained during serial cell culture passages. The mutant exhibits a significant reduction in neuroinvasiveness and neurovirulence and low infectivity in mosquitoes. It induces robust ZIKV-specific memory B cell, antibody, and T cell-mediated immune responses in type I interferon receptor (IFNR) deficient mice. ZIKV-specific T cell immunity remains strong months post-vaccination in wild-type C57BL/6 (B6) mice. Vaccination with ZE4B-36 protects mice from ZIKV-induced diseases and vertical transmission. Our results suggest that combination mutations in E glycosylation and NS4B P36 contribute to a candidate LAV with significantly increased safety but retain strong immunogenicity for prevention and control of ZIKV infection.
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Affiliation(s)
- Awadalkareem Adam
- Department of Microbiology & Immunology, University of Texas Medical Branch, Galveston, TX, USA
| | - Camila R Fontes-Garfias
- Department of Biochemistry & Molecular Biology, University of Texas Medical Branch, Galveston, TX, USA
| | - Vanessa V Sarathy
- Department of Pathology, University of Texas Medical Branch, Galveston, TX, USA
- Sealy Institute for Vaccine Sciences, University of Texas Medical Branch, Galveston, TX, USA
| | - Yang Liu
- Department of Biochemistry & Molecular Biology, University of Texas Medical Branch, Galveston, TX, USA
| | - Huanle Luo
- Department of Microbiology & Immunology, University of Texas Medical Branch, Galveston, TX, USA
| | - Emily Davis
- Department of Pathology, University of Texas Medical Branch, Galveston, TX, USA
| | - Wenqian Li
- Department of Microbiology & Immunology, University of Texas Medical Branch, Galveston, TX, USA
| | - Antonio E Muruato
- Department of Microbiology & Immunology, University of Texas Medical Branch, Galveston, TX, USA
- Department of Biochemistry & Molecular Biology, University of Texas Medical Branch, Galveston, TX, USA
| | - Binbin Wang
- Department of Microbiology & Immunology, University of Texas Medical Branch, Galveston, TX, USA
| | - Renat Ahatov
- Department of Microbiology & Immunology, University of Texas Medical Branch, Galveston, TX, USA
| | - Yoseph Mahmoud
- Department of Microbiology & Immunology, University of Texas Medical Branch, Galveston, TX, USA
| | - Chao Shan
- Department of Biochemistry & Molecular Biology, University of Texas Medical Branch, Galveston, TX, USA
| | - Samantha R Osman
- Department of Microbiology & Immunology, University of Texas Medical Branch, Galveston, TX, USA
| | - Steven G Widen
- Department of Biochemistry & Molecular Biology, University of Texas Medical Branch, Galveston, TX, USA
- Molecular Genomics Core Facility, University of Texas Medical Branch, Galveston, TX, USA
| | - Alan D T Barrett
- Department of Microbiology & Immunology, University of Texas Medical Branch, Galveston, TX, USA
- Department of Pathology, University of Texas Medical Branch, Galveston, TX, USA
- Sealy Institute for Vaccine Sciences, University of Texas Medical Branch, Galveston, TX, USA
| | - Pei-Yong Shi
- Department of Biochemistry & Molecular Biology, University of Texas Medical Branch, Galveston, TX, USA.
- Sealy Institute for Vaccine Sciences, University of Texas Medical Branch, Galveston, TX, USA.
- Sealy Center for Structural Biology & Molecular Biophysics, University of Texas Medical Branch, Galveston, TX, USA.
| | - Tian Wang
- Department of Microbiology & Immunology, University of Texas Medical Branch, Galveston, TX, USA.
- Department of Pathology, University of Texas Medical Branch, Galveston, TX, USA.
- Sealy Institute for Vaccine Sciences, University of Texas Medical Branch, Galveston, TX, USA.
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Liu Y, Wu S, Koo Y, Yang A, Dai Y, Khant H, Osman SR, Chowdhury M, Wei H, Li Y, Court K, Hwang E, Wen Y, Dasari SK, Nguyen M, Tang ECC, Chehab EW, de Val N, Braam J, Sood AK. Characterization of and isolation methods for plant leaf nanovesicles and small extracellular vesicles. Nanomedicine 2020; 29:102271. [PMID: 32702466 DOI: 10.1016/j.nano.2020.102271] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 05/27/2020] [Accepted: 07/10/2020] [Indexed: 12/19/2022]
Abstract
Mammalian small extracellular vesicles (sEVs) can deliver diverse molecules to target cells. However, they are difficult to obtain in large quantities and can activate host immune responses. Plant-derived vesicles may help to overcome these challenges. We optimized isolation methods for two types of plant vesicles, nanovesicles from disrupted leaf and sEVs from the extracellular apoplastic space of Arabidopsis thaliana. Both preparations yielded intact vesicles of uniform size, and a mean membrane charge of approximately -25 mV. We also demonstrated applicability of these preparative methods using Brassicaceae vegetables. Proteomic analysis of a subset of vesicles with a density of 1.1-1.19 g mL-1 sheds light on the likely cellular origin and complexity of the vesicles. Both leaf nanovesicles and sEVs were taken up by cancer cells, with sEVs showing an approximately three-fold higher efficiency compared to leaf nanovesicles. These results support the potential of plant-derived vesicles as vehicles for therapeutic delivery.
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Affiliation(s)
- Yuan Liu
- Department of Gynecologic Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX; BioSciences, Rice University, Houston, TX.
| | - Sherry Wu
- Department of Gynecologic Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX.
| | | | - An Yang
- BioSciences, Rice University, Houston, TX; State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, People's Republic of China.
| | - Yanwan Dai
- BioSciences, Rice University, Houston, TX.
| | - Htet Khant
- Center for Molecular Microscopy, Center for Cancer Research, National Cancer Institute, Frederick, MD; Cancer Research Technology Program, Frederick National Laboratory for Cancer Research, Leidos Biomedical Inc., Frederick, MD.
| | | | - Mamur Chowdhury
- Department of Gynecologic Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX.
| | - Haichao Wei
- The Vivian L. Smith Department of Neurosurgery, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX.
| | - Yang Li
- Department of Gynecologic Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX.
| | - Karem Court
- Department of Gynecologic Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX.
| | | | - Yunfei Wen
- Department of Gynecologic Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX.
| | - Santosh K Dasari
- Department of Gynecologic Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX.
| | | | | | | | - Natalia de Val
- Center for Molecular Microscopy, Center for Cancer Research, National Cancer Institute, Frederick, MD; Cancer Research Technology Program, Frederick National Laboratory for Cancer Research, Leidos Biomedical Inc., Frederick, MD.
| | | | - Anil K Sood
- Department of Gynecologic Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX.
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Abdel-Halim KY, Mona MH, Giesy JP, Shouker FA, Osman SR. Cytotoxic effects of persistent organic pollutants on the freshwater snail (Lanistes carinatus) in Kafr El-Zayat, Egypt. Environ Monit Assess 2019; 191:699. [PMID: 31667650 PMCID: PMC6821668 DOI: 10.1007/s10661-019-7751-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 08/09/2019] [Indexed: 06/10/2023]
Abstract
Effects of industrial and municipal wastewaters on the freshwater snail, Lanistes carinatus, were evaluated. Concentrations of some chemicals in some effluents were greater than permissible limits promulgated internationally by various jurisdictions. Pesticides and polychlorinated biphenyls (PCBs) observed in tissues of snails collected during summer were greater than those measured in snails collected during winter. Catalase activities observed during autumn were greater than those observed during other seasons. Activities of catalase were greater at all sites near sources of contamination than in snails from the reference site (S6). Lactate dehydrogenase activity was also greater at all sites relative to the location designated as the reference (S6), at which activities did not exceed 8.10 U/L. Patterns of genomic DNA in snails, as determined by use of OPA-02 primer, were significantly different among sites. Location S1 (Belshay village) exhibited 11 bands, followed by S2 (El-Demer zone) and S5 (Rosetta branch) which exhibited 6 bands. In contrast, all sites exhibited greater numbers of bands when the OPA-08 primer was used. Thus, DNA fingerprinting, lactate dehydrogenase, and catalase offer useful biomarkers in ecotoxicology and risk assessment programs.
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Affiliation(s)
- K Y Abdel-Halim
- Mammalian & Aquatic Toxicology Department, Central Agricultural Pesticides Laboratory, Agricultural Research Center (ARC), Dokki, 12618, Giza, Egypt.
| | - M H Mona
- Zoology Department, Faculty of Science, Tanta University, Tanta, Egypt
| | - J P Giesy
- Department of Veterinary Biomedical Sciences and Toxicology Centre, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - F A Shouker
- Zoology Department, Faculty of Science, Tanta University, Tanta, Egypt
| | - S R Osman
- Mammalian & Aquatic Toxicology Department, Central Agricultural Pesticides Laboratory, Agricultural Research Center (ARC), Dokki, 12618, Giza, Egypt
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