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Huang J, Ding Y, Yao J, Zhang M, Zhang Y, Xie Z, Zuo J. Nasal Nanovaccines for SARS-CoV-2 to Address COVID-19. Vaccines (Basel) 2022; 10:vaccines10030405. [PMID: 35335037 PMCID: PMC8952855 DOI: 10.3390/vaccines10030405] [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: 11/02/2021] [Revised: 03/04/2022] [Accepted: 03/04/2022] [Indexed: 02/06/2023] Open
Abstract
COVID-19 is still prevalent around the globe. Although some SARS-CoV-2 vaccines have been distributed to the population, the shortcomings of vaccines and the continuous emergence of SARS-CoV-2 mutant virus strains are a cause for concern. Thus, it is vital to continue to improve vaccines and vaccine delivery methods. One option is nasal vaccination, which is more convenient than injections and does not require a syringe. Additionally, stronger mucosal immunity is produced under nasal vaccination. The easy accessibility of the intranasal route is more advantageous than injection in the context of the COVID-19 pandemic. Nanoparticles have been proven to be suitable delivery vehicles and adjuvants, and different NPs have different advantages. The shortcomings of the SARS-CoV-2 vaccine may be compensated by selecting or modifying different nanoparticles. It travels along the digestive tract to the intestine, where it is presented by GALT, tissue-resident immune cells, and gastrointestinal lymph nodes. Nasal nanovaccines are easy to use, safe, multifunctional, and can be distributed quickly, demonstrating strong prospects as a vaccination method for SARS-CoV-2, SARS-CoV-2 variants, or SARS-CoV-n.
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Affiliation(s)
- Jialu Huang
- The Laboratory of Translational Medicine, Hengyang Medical School, University of South China, Hengyang 421001, China; (J.H.); (M.Z.); (Y.Z.); (Z.X.)
| | - Yubo Ding
- Nanhua Hospital Affiliated to University of South China, Hengyang Medical School, University of South China, Hengyang 421002, China; (Y.D.); (J.Y.)
| | - Jingwei Yao
- Nanhua Hospital Affiliated to University of South China, Hengyang Medical School, University of South China, Hengyang 421002, China; (Y.D.); (J.Y.)
| | - Minghui Zhang
- The Laboratory of Translational Medicine, Hengyang Medical School, University of South China, Hengyang 421001, China; (J.H.); (M.Z.); (Y.Z.); (Z.X.)
| | - Yu Zhang
- The Laboratory of Translational Medicine, Hengyang Medical School, University of South China, Hengyang 421001, China; (J.H.); (M.Z.); (Y.Z.); (Z.X.)
| | - Zhuoyi Xie
- The Laboratory of Translational Medicine, Hengyang Medical School, University of South China, Hengyang 421001, China; (J.H.); (M.Z.); (Y.Z.); (Z.X.)
| | - Jianhong Zuo
- The Laboratory of Translational Medicine, Hengyang Medical School, University of South China, Hengyang 421001, China; (J.H.); (M.Z.); (Y.Z.); (Z.X.)
- Nanhua Hospital Affiliated to University of South China, Hengyang Medical School, University of South China, Hengyang 421002, China; (Y.D.); (J.Y.)
- The Third Affiliated Hospital of University of South China, Hengyang Medical School, University of South China, Hengyang 421900, China
- Correspondence: ; Tel.: +86-7345-675219
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Moine L, Canali MM, Porporatto C, Correa SG. Reviewing the biological activity of chitosan in the mucosa: Focus on intestinal immunity. Int J Biol Macromol 2021; 189:324-334. [PMID: 34419549 DOI: 10.1016/j.ijbiomac.2021.08.098] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 08/08/2021] [Accepted: 08/12/2021] [Indexed: 12/13/2022]
Abstract
Chitosan is a polymer derived from the partial deacetylation of chitin with particular characteristics, such as mucoadhesiveness, tolerability, biocompatibility and biodegradability. Biomedical uses of chitosan cover a wide spectrum of applications as dietary fiber, immunoadjuvant and regulator of the intestinal microbiota or delivery agent. Chemical modification of chitosan is feasible because its reactive amino and hydroxyl groups can be modified by a diverse array of ligands, functional groups and molecules. This gives rise to numerous derivatives that allow different formulation types influencing their activity. Considering the multiple events resulting from the interaction with mucosal tissues, chitosan is a singular candidate for strategies targeting immune stimulation (i.e., tolerance induction, vaccination). Its role as a prebiotic and probiotic carrier represents an effective option to manage intestinal dysbiosis. In the intestinal scenario where the exposure of the immune system to a wide variety of antigens is permanent, chitosan increases IgA levels and favors a tolerogenic environment, thus becoming a key ally for host homeostasis.
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Affiliation(s)
- L Moine
- Departamento de Bioquímica Clínica-Facultad de Ciencias Químicas-Centro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI-CONICET), Universidad Nacional de Córdoba, Haya de la Torre y Medina Allende, CP: 5016 Córdoba Capital, Córdoba, Argentina
| | - M M Canali
- Université Côte d'Azur, INSERM, CNRS, IPMC, France
| | - C Porporatto
- Instituto Multidisciplinario de Investigación y Transferencia Agroalimentaria y Biotecnológica (IMITAB-CONICET), Universidad Nacional de Villa María (UNVM), Arturo Jauretche 1555, CP: 5900 Villa María, Córdoba, Argentina
| | - S G Correa
- Departamento de Bioquímica Clínica-Facultad de Ciencias Químicas-Centro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI-CONICET), Universidad Nacional de Córdoba, Haya de la Torre y Medina Allende, CP: 5016 Córdoba Capital, Córdoba, Argentina.
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Tang Z, Huang X, Sabour PM, Chambers JR, Wang Q. Preparation and characterization of dry powder bacteriophage K for intestinal delivery through oral administration. Lebensm Wiss Technol 2015. [DOI: 10.1016/j.lwt.2014.08.012] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Zhang J, Kraft BL, Pan Y, Wall SK, Saez AC, Ebner PD. Development of an Anti-SalmonellaPhage Cocktail with Increased Host Range. Foodborne Pathog Dis 2010; 7:1415-9. [PMID: 20704510 DOI: 10.1089/fpd.2010.0621] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Jiayi Zhang
- Department of Animal Sciences, Purdue University, West Lafayette, Indiana
| | - Brittany L. Kraft
- Department of Biochemistry, Purdue University, West Lafayette, Indiana
| | - Yanying Pan
- Department of Veterinary Sciences, Zhejiang University, Hangzhou, Zhejiang, China
| | - Samantha K. Wall
- Department of Animal Sciences, Purdue University, West Lafayette, Indiana
| | - Anthea C. Saez
- Department of Animal Sciences, Purdue University, West Lafayette, Indiana
| | - Paul D. Ebner
- Department of Animal Sciences, Purdue University, West Lafayette, Indiana
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Stanford K, McAllister TA, Niu YD, Stephens TP, Mazzocco A, Waddell TE, Johnson RP. Oral delivery systems for encapsulated bacteriophages targeted at Escherichia coli O157:H7 in feedlot cattle. J Food Prot 2010; 73:1304-12. [PMID: 20615343 DOI: 10.4315/0362-028x-73.7.1304] [Citation(s) in RCA: 85] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Bacteriophages are natural predators of bacteria and may mitigate Escherichia coli O157:H7 in cattle and their environment. As bacteriophages targeted to E. coli O157:H7 (phages) lose activity at low pH, protection from gastric acidity may enhance efficacy of orally administered phages. Polymer encapsulation of four phages, wV8, rV5, wV7, and wV11, and exposure to pH 3.0 for 20 min resulted in an average 13.6% recovery of phages after release from encapsulation at pH 7.2. In contrast, untreated phages under similar conditions had a complete loss of activity. Steers (n = 24) received 10(11) CFU of naladixic acid-resistant E. coli O157:H7 on day 0 and were housed in six pens of four steers. Two pens were control (naladixic acid-resistant E. coli O157:H7 only), and the remaining pens received polymer-encapsulated phages (Ephage) on days -1, 1, 3, 6, and 8. Two pens received Ephage orally in gelatin capsules (bolus; 10(10) PFU per steer per day), and the remaining two pens received Ephage top-dressed on their feed (feed; estimated 10(11) PFU per steer per day). Shedding of E. coli O157:H7 was monitored for 10 weeks by collecting fecal grab and hide swab samples. Acceptable activity of mixed phages at delivery to steers was found for bolus and feed, averaging 1.82 and 1.13 x 10(9) PFU/g, respectively. However, Ephage did not reduce shedding of naladixic acid-resistant E. coli O157:H7, although duration of shedding was reduced by 14 days (P < 0.1) in bolus-fed steers as compared with control steers. Two successful systems for delivery of Ephage were developed, but a better understanding of phage-E. coli O157:H7 ecology is required to make phage therapy a viable strategy for mitigation of this organism in feedlot cattle.
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Affiliation(s)
- K Stanford
- Alberta Agriculture and Rural Development, Agriculture Centre, Lethbridge, Alberta, Canada.
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Investigation of Genipin Cross-Linked Microcapsule for Oral Delivery of Live Bacterial Cells and Other Biotherapeutics: Preparation and In Vitro Analysis in Simulated Human Gastrointestinal Model. INT J POLYM SCI 2010. [DOI: 10.1155/2010/985137] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Oral therapy utilizing engineered microorganisms has shown promise in the treatment of many diseases. By microencapsulation, viable cells can overcome the harsh gastrointestinal (GI) environment and secrete needed therapeutics into the gut. These engineered cells should be encased without escaping into the GI tract for safety concerns, thus robust microcapsule membrane is requisite. This paper examined the GI performance of a novel microcapsule membrane using a dynamic simulated human GI model. Results showed that the genipin cross-linked alginate-chitosan (GCAC) microcapsules possessed strong resistance to structural disintegration in the simulated GI environment. Leakage of encapsulated high molecular weight dextran, a model material to be protected during the simulated GI transit, was negligible over 72 h of exposure, in contrast to considerable leakage of dextran from the non-cross-linked counterparts. These microcapsules did not alter the microflora and enzymatic activities in the simulated human colonic media. This study suggested the potential of the GCAC microcapsules for oral delivery of live microorganisms and other biotherapeutics.
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Ma Y, Pacan JC, Wang Q, Xu Y, Huang X, Korenevsky A, Sabour PM. Microencapsulation of bacteriophage felix O1 into chitosan-alginate microspheres for oral delivery. Appl Environ Microbiol 2008; 74:4799-805. [PMID: 18515488 PMCID: PMC2519356 DOI: 10.1128/aem.00246-08] [Citation(s) in RCA: 183] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2008] [Accepted: 05/20/2008] [Indexed: 02/01/2023] Open
Abstract
This paper reports the development of microencapsulated bacteriophage Felix O1 for oral delivery using a chitosan-alginate-CaCl(2) system. In vitro studies were used to determine the effects of simulated gastric fluid (SGF) and bile salts on the viability of free and encapsulated phage. Free phage Felix O1 was found to be extremely sensitive to acidic environments and was not detectable after a 5-min exposure to pHs below 3.7. In contrast, the number of microencapsulated phage decreased by 0.67 log units only, even at pH 2.4, for the same period of incubation. The viable count of microencapsulated phage decreased only 2.58 log units during a 1-h exposure to SGF with pepsin at pH 2.4. After 3 h of incubation in 1 and 2% bile solutions, the free phage count decreased by 1.29 and 1.67 log units, respectively, while the viability of encapsulated phage was fully maintained. Encapsulated phage was completely released from the microspheres upon exposure to simulated intestinal fluid (pH 6.8) within 6 h. The encapsulated phage in wet microspheres retained full viability when stored at 4 degrees C for the duration of the testing period (6 weeks). With the use of trehalose as a stabilizing agent, the microencapsulated phage in dried form had a 12.6% survival rate after storage for 6 weeks. The current encapsulation technique enables a large proportion of bacteriophage Felix O1 to remain bioactive in a simulated gastrointestinal tract environment, which indicates that these microspheres may facilitate delivery of therapeutic phage to the gut.
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Affiliation(s)
- Yongsheng Ma
- Department of Bioscience and Biotechnology, Dalian University of Technology, Dalian 116024, China
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