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Coelho-Rocha ND, de Jesus LCL, Barroso FAL, da Silva TF, Ferreira E, Gonçalves JE, Dos Santos Martins F, de Oliveira Carvalho RD, Barh D, Azevedo VADC. Evaluation of Probiotic Properties of Novel Brazilian Lactiplantibacillus plantarum Strains. Probiotics Antimicrob Proteins 2023; 15:160-174. [PMID: 36028786 DOI: 10.1007/s12602-022-09978-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/15/2022] [Indexed: 01/20/2023]
Abstract
Beneficial effects of Lactiplantibacillus plantarum strains have been widely reported. Knowing that the effects of probiotic bacteria are strain-dependent, this study aimed to characterize the probiotic properties and investigate the gastrointestinal protective effects of nine novel L. plantarum strains isolated from Bahia, Brazil. The probiotic functionality was first evaluated in vitro by characterizing bile salt and acidic tolerance, antibacterial activity, and adhesion to Caco-2 cells. Antibiotic resistance profile, mucin degradation, and hemolytic activity assays were also performed to evaluate safety features. In vivo analyses were conducted to investigate the anti-inflammatory effects of the strains on a mouse model of 5-Fluorouracil-induced mucositis. Our results suggest that the used L. plantarum strains have good tolerance to bile salts and low pH and can inhibit commonly gastrointestinal pathogens. Lp2 and Lpl1 strains also exhibited high adhesion rates to Caco-2 cells (13.64 and 9.05%, respectively). Phenotypical resistance to aminoglycosides, vancomycin, and tetracycline was observed for most strains. No strain showed hemolytic or mucolytic activity. Seven strains had a protective effect against histopathological and inflammatory damage induced by 5-FU. Gene expression analysis of inflammatory markers showed that five strains upregulated interleukin 10 (Il10), while four downregulated both interleukin 6 (Il6) and interleukin 1b (Il1b). Additionally, all strains reduced eosinophilic and neutrophilic infiltration; however, they could not prevent weight loss or reduced liquid/ food intake. Altogether, our study suggests these Brazilian L. plantarum strains present good probiotic characteristics and safety levels for future applications and can be therapeutically adjuvant alternatives to prevent/treat intestinal mucositis.
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Affiliation(s)
- Nina Dias Coelho-Rocha
- Department of Genetics, Ecology, and Evolution, Biological Sciences Institute, Federal University of Minas Gerais, Minas Gerais, Belo Horizonte, 31270-901, Brazil
| | - Luís Cláudio Lima de Jesus
- Department of Genetics, Ecology, and Evolution, Biological Sciences Institute, Federal University of Minas Gerais, Minas Gerais, Belo Horizonte, 31270-901, Brazil
| | - Fernanda Alvarenga Lima Barroso
- Department of Genetics, Ecology, and Evolution, Biological Sciences Institute, Federal University of Minas Gerais, Minas Gerais, Belo Horizonte, 31270-901, Brazil
| | - Tales Fernando da Silva
- Department of Genetics, Ecology, and Evolution, Biological Sciences Institute, Federal University of Minas Gerais, Minas Gerais, Belo Horizonte, 31270-901, Brazil
| | - Enio Ferreira
- Department of General Pathology, Biological Sciences Institute, Federal University of Minas Gerais, Minas Gerais, Belo Horizonte, 31270-901, Brazil
| | - José Eduardo Gonçalves
- Department of Pharmaceutic Products, Pharmacy Faculty, Federal University of Minas Gerais, Minas Gerais, Belo Horizonte, 31270-901, Brazil
| | - Flaviano Dos Santos Martins
- Department of Microbiology, Biological Sciences Institute, Federal University of Minas Gerais, Minas Gerais, Belo Horizonte, 31270-901, Brazil
| | - Rodrigo Dias de Oliveira Carvalho
- Department of Biochemistry and Biophysics, Institute of Health Sciences, Federal University of Bahia, Salvador, Bahia, 40110-909, Brazil
| | - Debmalya Barh
- Institute of Integrative Omics and Applied Biotechnology (IIOAB), West Bengal, Nonakuri, Purba Medinipur, 721172, India
| | - Vasco Ariston de Carvalho Azevedo
- Department of Genetics, Ecology, and Evolution, Biological Sciences Institute, Federal University of Minas Gerais, Minas Gerais, Belo Horizonte, 31270-901, Brazil.
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