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Silvestre D, Moreno G, Argüelles MH, Tomás Fariña J, Biedma ME, Peri Ibáñez ES, Mandile MG, Glikmann G, Rumbo M, Castello AA, Temprana CF. Display of FliC131 on the Surface of Lactococcus lactis as a Strategy to Increase its Adjuvanticity for Mucosal Immunization. J Pharm Sci 2024:S0022-3549(24)00097-2. [PMID: 38522753 DOI: 10.1016/j.xphs.2024.03.013] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 03/15/2024] [Accepted: 03/15/2024] [Indexed: 03/26/2024]
Abstract
Research on innovative mucosal adjuvants is essential to develop new vaccines for safe mucosal application. In this work, we propose the development of a Lactococcus lactis that expresses a variant of flagellin on its surface (FliC131*), to increase the adjuvanticity of the living cell and cell wall-derived particles (CWDP). We optimized the expression of FliC131*, and confirmed its identity and localization by Western blot and flow cytometry. We also generated CWDP containing FliC131* (CDWP-FliC131*) and evaluated their storage stability. Lastly, we measured the human TLR5 stimulating activity in vitro and assessed the adjuvanticity in vivo using ovalbumin (OVA) as a model antigen. As a result, we generated L. lactis/pCWA-FliC131*, that expresses and displays FliC131* on its surface, obtained the corresponding CWDP-FliC131*, and showed that both activated hTLR5 in vitro in a dose-dependent manner. Furthermore, CWDP-FliC131* retained this biological activity after being lyophilized and stored for a year. Finally, intranasal immunization of mice with OVA plus live L. lactis/pCWA-FliC131* or CWDP-FliC131* induced OVA-specific IgG and IgA in serum, intestinal lavages, and bronchoalveolar lavages. Our work demonstrates the potential of this recombinant L. lactis with an enhanced adjuvant effect, prompting its further evaluation for the design of novel mucosal vaccines.
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Affiliation(s)
- Dalila Silvestre
- Laboratorio de Inmunología y Virología, Departamento de Ciencia y Tecnología, Universidad Nacional de Quilmes, Roque Sáenz Peña 352, Bernal, 1876, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, Ciudad Autónoma de Buenos Aires, 1425, Argentina
| | - Griselda Moreno
- Instituto de Estudios Inmunológicos y Fisiopatológicos (IIFP), Facultad de Ciencias Exactas, Universidad Nacional de La Plata - Consejo Nacional de Investigaciones Científicas y Técnicas (UNLP-CONICET), Boulevard 120 1489, La Plata, 1900, Argentina
| | - Marcelo H Argüelles
- Laboratorio de Inmunología y Virología, Departamento de Ciencia y Tecnología, Universidad Nacional de Quilmes, Roque Sáenz Peña 352, Bernal, 1876, Argentina
| | - Julieta Tomás Fariña
- Laboratorio de Inmunología y Virología, Departamento de Ciencia y Tecnología, Universidad Nacional de Quilmes, Roque Sáenz Peña 352, Bernal, 1876, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, Ciudad Autónoma de Buenos Aires, 1425, Argentina
| | - Marina E Biedma
- Instituto de Estudios Inmunológicos y Fisiopatológicos (IIFP), Facultad de Ciencias Exactas, Universidad Nacional de La Plata - Consejo Nacional de Investigaciones Científicas y Técnicas (UNLP-CONICET), Boulevard 120 1489, La Plata, 1900, Argentina
| | - Estefanía S Peri Ibáñez
- Laboratorio de Inmunología y Virología, Departamento de Ciencia y Tecnología, Universidad Nacional de Quilmes, Roque Sáenz Peña 352, Bernal, 1876, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, Ciudad Autónoma de Buenos Aires, 1425, Argentina
| | - Marcelo G Mandile
- Laboratorio de Inmunología y Virología, Departamento de Ciencia y Tecnología, Universidad Nacional de Quilmes, Roque Sáenz Peña 352, Bernal, 1876, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, Ciudad Autónoma de Buenos Aires, 1425, Argentina
| | - Graciela Glikmann
- Laboratorio de Inmunología y Virología, Departamento de Ciencia y Tecnología, Universidad Nacional de Quilmes, Roque Sáenz Peña 352, Bernal, 1876, Argentina
| | - Martín Rumbo
- Instituto de Estudios Inmunológicos y Fisiopatológicos (IIFP), Facultad de Ciencias Exactas, Universidad Nacional de La Plata - Consejo Nacional de Investigaciones Científicas y Técnicas (UNLP-CONICET), Boulevard 120 1489, La Plata, 1900, Argentina
| | - Alejandro A Castello
- Laboratorio de Inmunología y Virología, Departamento de Ciencia y Tecnología, Universidad Nacional de Quilmes, Roque Sáenz Peña 352, Bernal, 1876, Argentina; Instituto de Ciencias de la Salud, Universidad Nacional Arturo Jauretche, Av. Calchaquí 6200, Florencio Varela, 1888, Buenos Aires, Argentina
| | - C Facundo Temprana
- Laboratorio de Inmunología y Virología, Departamento de Ciencia y Tecnología, Universidad Nacional de Quilmes, Roque Sáenz Peña 352, Bernal, 1876, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, Ciudad Autónoma de Buenos Aires, 1425, Argentina.
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Mandile MG, Argüelles MH, Temprana CF, Peri Ibáñez ES, Silvestre D, Musto A, Rodríguez Pérez A, Mistchenko A, Glikmann G, Castello AA. Pre-vaccine rotavirus surveillance in Buenos Aires, Argentina. Characterization of an emergent G1P[8] strain associated to fatal cases in 2014. Infect Genet Evol 2020; 80:104192. [PMID: 31931256 DOI: 10.1016/j.meegid.2020.104192] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 01/08/2020] [Accepted: 01/09/2020] [Indexed: 11/26/2022]
Abstract
Group A rotaviruses (RVA) are the most frequent etiological agents causing severe diarrhea in infants and surveillance of genotype, and genetic characteristics of circulating strains are necessary in order to evaluate vaccine programs. The objectives of this work were to describe G and P genotype from 2012 through 2014 in Buenos Aires, Argentina completing an overview of 19 years of genotype surveillance in our region and to characterize an emerging G1P[8] strain associated with severe cases and five fatalities in 2014. We performed genotyping by RT-PCR. The sequencing of several genes, phylogenetic analyses, and comparative epidemiological data were used to know the origin and phylogenetic relationships of the emerging G1P[8] strain. Along with this report, 19 years of continuous RVA genotype surveillance in Argentina in the pre-vaccine era was covered. During the last year of this surveillance, 2014, a significantly increased incidence of RVA associated gastroenteritis was related to the reemergence of G1P[8] strains, being these ones detected in low frequency in the last nine years. Interestingly, the patients affected were significantly older when compared with those from the last six seasons. Additionally, phylogenetic analysis of several genes infer that these G1P[8] strains were closely related to Asian strains circulating during 2012 and 2013. In addition to this, the suggested extra continental origin for the 2014 G1P[8] strains and the very low circulation of G1 type during nine years probably explain the increased incidence and severity in the gastroenteritis cases and the particular epidemiologic characteristics. In conclusion, this work gives us a whole panorama of the pre-vaccine era of the RVA molecular epidemiology in the most populated region of Argentina. In this way, this work inspires us to continue with this type of studies in the post-vaccination era.
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Affiliation(s)
- Marcelo G Mandile
- Laboratorio de Inmunología y Virología, Universidad Nacional de Quilmes, Roque Sáenz Peña 352, Bernal 1876, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290 (1425), Ciudad Autónoma de Buenos Aires, Argentina.
| | - Marcelo H Argüelles
- Laboratorio de Inmunología y Virología, Universidad Nacional de Quilmes, Roque Sáenz Peña 352, Bernal 1876, Buenos Aires, Argentina
| | - Carlos F Temprana
- Laboratorio de Inmunología y Virología, Universidad Nacional de Quilmes, Roque Sáenz Peña 352, Bernal 1876, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290 (1425), Ciudad Autónoma de Buenos Aires, Argentina
| | - Estefanía S Peri Ibáñez
- Laboratorio de Inmunología y Virología, Universidad Nacional de Quilmes, Roque Sáenz Peña 352, Bernal 1876, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290 (1425), Ciudad Autónoma de Buenos Aires, Argentina
| | - Dalila Silvestre
- Laboratorio de Inmunología y Virología, Universidad Nacional de Quilmes, Roque Sáenz Peña 352, Bernal 1876, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290 (1425), Ciudad Autónoma de Buenos Aires, Argentina
| | - Alejandra Musto
- Hospital Interzonal de Agudos Evita Pueblo, Rio de Janeiro 1910, Lanús Oeste (1824), Buenos Aires, Argentina
| | - Alberto Rodríguez Pérez
- Hospital General de Agudos Dr. Alberto A. Eurnekian, Lavalle 583, La Union 1803, Buenos Aires, Argentina
| | - Alicia Mistchenko
- Laboratorio de Virología, Hospital de Niños Ricardo Gutiérrez, Gallo 1330, Buenos Aires 1425, Argentina; Comisión de Investigaciones Científicas de la Provincia de Buenos Aires (CIC), La Plata (1900), Buenos Aires, Argentina
| | - Graciela Glikmann
- Laboratorio de Inmunología y Virología, Universidad Nacional de Quilmes, Roque Sáenz Peña 352, Bernal 1876, Buenos Aires, Argentina
| | - Alejandro A Castello
- Laboratorio de Inmunología y Virología, Universidad Nacional de Quilmes, Roque Sáenz Peña 352, Bernal 1876, Buenos Aires, Argentina; Instituto de Ciencias de la Salud, Universidad Nacional Arturo Jauretche, Félix Lope de Vega 2099, Florencio Varela 1888, Buenos Aires, Argentina
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