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Medeiros L, Dall'Agno L, Riet J, Nornberg B, Azevedo R, Cardoso A, da Silva JLS, de Sousa OV, Rosas VT, Tesser MB, Pedrosa VF, Romano LA, Wasielesky W, Marins LF. A native strain of Bacillus subtilis increases lipid accumulation and modulates expression of genes related to digestion and amino acid metabolism in Litopenaeus vannamei. Comp Biochem Physiol B Biochem Mol Biol 2024; 270:110924. [PMID: 37995828 DOI: 10.1016/j.cbpb.2023.110924] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 10/28/2023] [Accepted: 11/16/2023] [Indexed: 11/25/2023]
Abstract
In the field of shrimp aquaculture, the utilization of probiotics represents a promising avenue, due to the well-documented benefits conferred by these microorganisms. In the current study, a Bacillus subtilis strain, referred to as strain E, was isolated from the gastrointestinal tract of the shrimp Litopenaeus vannamei and subsequently identified via molecular methods and phylogeny. The probiotic potential of strain E was characterized, and its application as a feed shrimp additive was evaluated in a 45-day experiment. Several parameters were assessed, including zootechnical performance, muscle tissue proximate composition, hepatopancreas lipid concentration, and the expression of genes associated with digestion, amino acid metabolism, and antioxidant defense mechanisms in various shrimp tissues. Although no significant impact on zootechnical performance was observed, supplementation with strain E led to an increase in lipid concentration within both muscle and hepatopancreas tissues. Furthermore, a marked decrease in the expression of genes linked to digestion and amino acid metabolism was noted. These findings suggest that the addition of the B. subtilis strain E to shrimp feed may enhance nutrient absorption and modulate the expression of genes related to digestion and amino acid metabolism.
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Affiliation(s)
- Luiza Medeiros
- LEGENE - Research Group in Genetic Engineering and Biotechnology, Laboratory of Molecular Biology, Institute of Biological Sciences, Federal University of Rio Grande, Rio Grande, RS, Brazil. https://twitter.com/Luf07709017
| | - Laura Dall'Agno
- LEGENE - Research Group in Genetic Engineering and Biotechnology, Laboratory of Molecular Biology, Institute of Biological Sciences, Federal University of Rio Grande, Rio Grande, RS, Brazil
| | - Jade Riet
- LEGENE - Research Group in Genetic Engineering and Biotechnology, Laboratory of Molecular Biology, Institute of Biological Sciences, Federal University of Rio Grande, Rio Grande, RS, Brazil
| | - Bruna Nornberg
- LEGENE - Research Group in Genetic Engineering and Biotechnology, Laboratory of Molecular Biology, Institute of Biological Sciences, Federal University of Rio Grande, Rio Grande, RS, Brazil
| | - Raíza Azevedo
- LEGENE - Research Group in Genetic Engineering and Biotechnology, Laboratory of Molecular Biology, Institute of Biological Sciences, Federal University of Rio Grande, Rio Grande, RS, Brazil
| | - Arthur Cardoso
- LEGENE - Research Group in Genetic Engineering and Biotechnology, Laboratory of Molecular Biology, Institute of Biological Sciences, Federal University of Rio Grande, Rio Grande, RS, Brazil
| | | | - Oscarina Viana de Sousa
- Environmental and Fish Microbiology Laboratory, Marine Sciences Institute, Federal University of Ceará, Fortaleza, CE, Brazil
| | | | - Marcelo Borges Tesser
- Laboratory of Nutrition of Aquatic Organisms, Institute of Oceanography, Federal University of Rio Grande, Rio Grande, RS, Brazil
| | - Virgínia F Pedrosa
- Laboratory of Immunology and Pathology of Aquatic Organisms, Institute of Oceanography, Federal University of Rio Grande, Rio Grande, RS, Brazil
| | - Luis A Romano
- Laboratory of Immunology and Pathology of Aquatic Organisms, Institute of Oceanography, Federal University of Rio Grande, Rio Grande, RS, Brazil
| | - Wilson Wasielesky
- Laboratory of Shrimp Culture, Institute of Oceanography, Federal University of Rio Grande, Rio Grande, RS, Brazil
| | - Luis F Marins
- LEGENE - Research Group in Genetic Engineering and Biotechnology, Laboratory of Molecular Biology, Institute of Biological Sciences, Federal University of Rio Grande, Rio Grande, RS, Brazil.
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de Pinho RB, Barbosa TN, Dall'Agno L, da Rocha Fonseca B, Bezerra FSB, Sousa FSS, Seixas FK, Collares T, Borsuk S. Mycobacterium bovis BCG expressing the proteins CP40 or CP09720 of Corynebacterium pseudotuberculosis promotes protection in mice after challenge. Vaccine 2024; 42:33-39. [PMID: 38044246 DOI: 10.1016/j.vaccine.2023.11.049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 11/23/2023] [Indexed: 12/05/2023]
Abstract
In this study, we assessed the survival and immune response of mice vaccinated with recombinant Mycobacterium bovis BCG Pasteur that expressed the CP40 or CP09720 proteins after the mice were challenged with a C. pseudotuberculosis MIC-6 virulent strain. Six groups of mice (n = 10 mice per group) were immunised with a sterile 0.9% saline solution (G1), 106 CFU of M. bovis BCG Pasteur (G2), 106 CFU of M. bovis BCG/cp40 (G3), 106 CFU of M. bovis BCG/cp09720 (G4), M. bovis BCG/cp40 boosted with rCP40 (G5), and M. bovis BCG/cp09720 boosted with rCP09720 (G6). The highest survival rate of 90% was observed in the G5 group, followed by 80% in the G6 group and 70% in the G3 and G4 groups. Moreover, a significantly greater induction of IFN-γ and IL-10 was found in the G3 group and higher IL-17 levels were recorded in the G5 group compared to their levels in the control group (G1) (p < 0.05). A specific humoral immune response (total IgG) was found in the G5 and G6 groups on day 42 compared to the level of response in the G1 group. These results indicated that the vector vaccine elicited significantly greater survival of mice in all experimental groups after a strong virulent challenge and induced a strong immune response.
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Affiliation(s)
- Rodrigo Barros de Pinho
- Laboratório de Biotecnologia Infecto-Parasitária, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, Brazil
| | - Tallyson Nogueira Barbosa
- Laboratório de Biotecnologia Infecto-Parasitária, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, Brazil
| | - Laura Dall'Agno
- Laboratório de Biotecnologia Infecto-Parasitária, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, Brazil
| | - Bárbara da Rocha Fonseca
- Laboratório de Biotecnologia Infecto-Parasitária, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, Brazil
| | - Francisco Silvestre Brilhante Bezerra
- Laboratório de Biotecnologia Aplicada a Doenças Infecto-Parasitárias, Centro de Ciências Biológicas e da Saúde, Universidade Rural do Semiárido, Mossoró, Brazil
| | - Fernanda Severo Sabedra Sousa
- Laboratório de Biotecnologia do Câncer, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, Brazil
| | - Fabiana Kommling Seixas
- Laboratório de Biotecnologia do Câncer, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, Brazil
| | - Tiago Collares
- Laboratório de Biotecnologia do Câncer, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, Brazil
| | - Sibele Borsuk
- Laboratório de Biotecnologia Infecto-Parasitária, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, Brazil.
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