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Sarnelli G, Del Re A, Palenca I, Franzin SB, Lu J, Seguella L, Zilli A, Pesce M, Rurgo S, Esposito G, Sanseverino W, Esposito G. Intranasal administration of Escherichia coli Nissle expressing the spike protein of SARS-CoV-2 induces long-term immunization and prevents spike protein-mediated lung injury in mice. Biomed Pharmacother 2024; 174:116441. [PMID: 38518597 DOI: 10.1016/j.biopha.2024.116441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Revised: 03/13/2024] [Accepted: 03/15/2024] [Indexed: 03/24/2024] Open
Abstract
While current anti-Spike protein (SP) vaccines have been pivotal in managing the pandemic, their limitations in delivery, storage, and the inability to provide mucosal immunization (preventing infections) highlight the ongoing necessity for research and innovation. To tackle these constraints, our research group developed a bacterial-based vaccine using a non-pathogenic E. coli Nissle 1917 (EcN) strain genetically modified to express the SARS-CoV-2 spike protein on its surface (EcN-pAIDA1-SP). We intranasally delivered the EcN-pAIDA1-SP in two doses and checked specific IgG/IgA production as well as the key immune mediators involved in the process. Moreover, following the initial and booster vaccine doses, we exposed both immunized and non-immunized mice to intranasal delivery of SARS-CoV-2 SP to assess the effectiveness of EcN-pAIDA1-SP in protecting lung tissue from the inflammation damage. We observed detectable levels of anti-SARS-CoV-2 spike IgG in serum samples and IgA in bronchoalveolar lavage fluid two weeks after the initial treatment, with peak concentrations in the respective samples on the 35th day. Moreover, immunoglobulins displayed a progressively enhanced avidity index, suggesting a selective binding to the spike protein. Finally, the pre-immunized group displayed a decrease in proinflammatory markers (TLR4, NLRP3, ILs) following SP challenge, compared to the non-immunized groups, along with better preservation of tissue morphology. Our probiotic-based technology provides an effective immunobiotic tool to protect individuals against disease and control infection spread.
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Affiliation(s)
- Giovanni Sarnelli
- Department of Clinical Medicine and Surgery, Section of Gastroenterology, University Federico II, Naples 80138, Italy; Nextbiomics S.R.L. (Società a Responsabilità Limitata), Naples 80100, Italy.
| | - Alessandro Del Re
- Department of Physiology and Pharmacology "V. Erspamer", Sapienza University of Rome, Rome 00185, Italy.
| | - Irene Palenca
- Department of Physiology and Pharmacology "V. Erspamer", Sapienza University of Rome, Rome 00185, Italy.
| | - Silvia Basili Franzin
- Department of Physiology and Pharmacology "V. Erspamer", Sapienza University of Rome, Rome 00185, Italy.
| | - Jie Lu
- Nextbiomics S.R.L. (Società a Responsabilità Limitata), Naples 80100, Italy; Department of Anatomy and Cell Biology, China Medical University, Shenyang 110122, China.
| | - Luisa Seguella
- Department of Physiology and Pharmacology "V. Erspamer", Sapienza University of Rome, Rome 00185, Italy.
| | - Aurora Zilli
- Department of Physiology and Pharmacology "V. Erspamer", Sapienza University of Rome, Rome 00185, Italy.
| | - Marcella Pesce
- Department of Clinical Medicine and Surgery, Section of Gastroenterology, University Federico II, Naples 80138, Italy
| | - Sara Rurgo
- Department of Clinical Medicine and Surgery, Section of Gastroenterology, University Federico II, Naples 80138, Italy.
| | - Giovanni Esposito
- Nextbiomics S.R.L. (Società a Responsabilità Limitata), Naples 80100, Italy; Department of Molecular Medicine and Medical Biotechnologies, Centro Ingegneria Genetica-Biotecnologie Avanzate s.c.a rl, Naples 80131, Italy.
| | - Walter Sanseverino
- Nextbiomics S.R.L. (Società a Responsabilità Limitata), Naples 80100, Italy.
| | - Giuseppe Esposito
- Nextbiomics S.R.L. (Società a Responsabilità Limitata), Naples 80100, Italy; Department of Physiology and Pharmacology "V. Erspamer", Sapienza University of Rome, Rome 00185, Italy.
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Boccellino M. COVID-19 Pandemic: Therapeutic Strategies and Vaccines. Int J Mol Sci 2023; 25:556. [PMID: 38203727 PMCID: PMC10778581 DOI: 10.3390/ijms25010556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 11/28/2023] [Accepted: 12/05/2023] [Indexed: 01/12/2024] Open
Abstract
Severe acute respiratory syndrome Coronavirus 2 (SARS-CoV-2), a highly pathogenic and transmissible virus, has spurred an impressive accumulation of knowledge [...].
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Affiliation(s)
- Mariarosaria Boccellino
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", 80138 Naples, Italy
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Yuan Y, Yang Y, Xiao L, Qu L, Zhang X, Wei Y. Advancing Insights into Probiotics during Vegetable Fermentation. Foods 2023; 12:3789. [PMID: 37893682 PMCID: PMC10606808 DOI: 10.3390/foods12203789] [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: 09/15/2023] [Revised: 10/08/2023] [Accepted: 10/12/2023] [Indexed: 10/29/2023] Open
Abstract
Fermented vegetables have a long history and are enjoyed worldwide for their unique flavors and health benefits. The process of fermentation improves the nutritional value, taste, and shelf life of foods. Microorganisms play a crucial role in this process through the production of metabolites. The flavors of fermented vegetables are closely related to the evaluation and succession of microbiota. Lactic acid bacteria (LABs) are typically the dominant bacteria in fermented vegetables, and they help inhibit the growth of spoilage bacteria and maintain a healthy gut microbiota in humans. However, homemade and small-scale artisanal products rely on spontaneous fermentation using bacteria naturally present on fresh vegetables or from aged brine, which may introduce external microorganisms and lead to spoilage and substandard products. Hence, understanding the role of LABs and other probiotics in maintaining the quality and safety of fermented vegetables is essential. Additionally, selecting probiotic fermentation microbiota and isolating beneficial probiotics from fermented vegetables can facilitate the use of safe and healthy starter cultures for large-scale industrial production. This review provides insights into the traditional fermentation process of making fermented vegetables, explains the mechanisms involved, and discusses the use of modern microbiome technologies to regulate fermentation microorganisms and create probiotic fermentation microbiota for the production of highly effective, wholesome, safe, and healthy fermented vegetable foods.
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Affiliation(s)
- Yingzi Yuan
- Laboratory of Synthetic Biology, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China (L.X.)
| | - Yutong Yang
- Laboratory of Synthetic Biology, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China (L.X.)
| | - Lele Xiao
- Laboratory of Synthetic Biology, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China (L.X.)
| | - Lingbo Qu
- Laboratory of Synthetic Biology, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China (L.X.)
- Food Laboratory of Zhongyuan, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Xiaoling Zhang
- Food Laboratory of Zhongyuan, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Yongjun Wei
- Laboratory of Synthetic Biology, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China (L.X.)
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