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Simonič M, Slapničar Š, Trček J, Matijašić BB, Lorbeg PM, Vesel A, Zemljič LF, Peršin Fratnik Z. Probiotic Lactobacillus paragasseri K7 Nanofiber Encapsulation Using Nozzle-Free Electrospinning. Appl Biochem Biotechnol 2023; 195:6768-6789. [PMID: 36920716 DOI: 10.1007/s12010-023-04416-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/17/2023] [Indexed: 03/16/2023]
Abstract
Probiotics are live microorganisms that can have beneficial effects on humans. Encapsulation offers them a better chance of survival. Therefore, nozzle-free electrospinning was introduced for their embedding in nanofibrous material. Probiotic Lactobacillus paragasseri K7 in lyophilized and fresh form, with and without inulin as prebiotic, was added to a polymer solution of sodium alginate (NaAlg) and polyethylene oxide (PEO). Conductivity, viscosity, pH, and surface tension were determined to define the optimal concentration and volume ratio for smooth electrospinning. The success of the formed nanoscale materials was examined by scanning electron microscope (SEM), while the entrapment of probiotics in the nanofibrous mats was detected by attenuated total reflection-Fourier transform infrared spectroscopy (ATR-FTIR) and X-ray photoelectron spectroscopy (XPS). Spontaneous diffusion of bacteria from electrospun samples in PBS buffer pH 7.4 was studied by plate counting on MRS agar. By exposing polymer solutions containing L. paragasseri K7 and inulin to a high electric field, the nanofilm was formed on a polypropylene substrate, used as collecting material. When polymer solutions without inulin were used, the bead-like nanofibers may have become visible. The SEM results suggest that inulin, in addition to K7 strain, additionally lowers the conductivity of spinning macromolecular solution and hinders the nanofiber formation. The results of ATR-FTIR confirmed the presence of L. paragasseri K7 embedded in nanocomposites by the appearance of characteristic peaks. The samples containing the probiotic regardless of its form with inulin had similar surface composition, except that the sodium content was higher in the samples with fresh probiotic, probably due to greater and thus less easy embedding of the bacteria in NaAlg. Within 2 h, the largest amount of probiotic strain K7 was spontaneously released from the electrospun sample containing the inulin and probiotic in freeze-dried form (44%), while the amount released from the nanofibrous sample, which also contained the inulin and probiotic in fresh form, was significantly lower (21%). These preliminary results demonstrate the potential of nozzle-free electrospinning technology for the development of probiotic delivery systems for short-term use, such as feminine hygiene materials (tampons, pads, napkins).
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Affiliation(s)
- Marjana Simonič
- Laboratory of Water Physics and Membrane Processes, Faculty of Chemistry and Chemical Engineering, University of Maribor, 20000, Maribor, Slovenia
| | - Špela Slapničar
- Department of Inorganic Chemistry and Technology, National Institute of Chemistry, 1000, Ljubljana, Slovenia
| | - Janja Trček
- Department of Biology, Faculty of Natural Sciences and Mathematics, University of Maribor, 2000, Maribor, Slovenia
| | - Bojana Bogovič Matijašić
- Department of Animal Science, Institute of Dairy Science and Probiotics, Biotechnical Faculty, University of Ljubljana, 1230, Domžale, Slovenia
| | - Petra Mohar Lorbeg
- Department of Animal Science, Institute of Dairy Science and Probiotics, Biotechnical Faculty, University of Ljubljana, 1230, Domžale, Slovenia
| | - Alenka Vesel
- Surface Engineering and Optoelectronics, Institut "Jožef Stefan", 1000, Ljubljana, Slovenia
| | - Lidija Fras Zemljič
- Laboratory for Characterization and Processing of Polymers, Institute of Engineering Materials and Design, Faculty of Mechanical Engineering, University of Maribor, 2000, Maribor, Slovenia
| | - Zdenka Peršin Fratnik
- Laboratory for Characterization and Processing of Polymers, Institute of Engineering Materials and Design, Faculty of Mechanical Engineering, University of Maribor, 2000, Maribor, Slovenia.
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Rozman V, Mohar Lorbeg P, Accetto T, Bogovič Matijašić B. Characterization of antimicrobial resistance in lactobacilli and bifidobacteria used as probiotics or starter cultures based on integration of phenotypic and in silico data. Int J Food Microbiol 2020; 314:108388. [DOI: 10.1016/j.ijfoodmicro.2019.108388] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Revised: 10/02/2019] [Accepted: 10/11/2019] [Indexed: 12/16/2022]
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Wang Y, Li A, Zhang L, Waqas M, Mehmood K, Iqbal M, Muyou C, Li Z, Lian Y, Sizhu S, Li J. Probiotic potential of Lactobacillus on the intestinal microflora against Escherichia coli induced mice model through high-throughput sequencing. Microb Pathog 2019; 137:103760. [PMID: 31562897 DOI: 10.1016/j.micpath.2019.103760] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2019] [Revised: 09/09/2019] [Accepted: 09/24/2019] [Indexed: 12/29/2022]
Abstract
The aim of this study was to evaluate the antibacterial potential of Lactobacillus screened from Tibetan yaks on clinical symptoms and intestinal microflora in enteroinvasive Escherichia coli (EIEC) induced mice model. In vitro study, Lactobacillus reuteri (LR1) exhibited stronger resistance to acid and bile and inhibited the growth of EIEC than Lactobacillus mucosae (LM1). The mice were randomly divided into four groups i.e. the LR1 group (LR1 1 × 109 CFU/day), LM1 group (LM1 1 × 109 CFU/day), blank control group and control group. Mice in control, LR1, and LM1 groups were challenged with EIEC on day 23. The body weight in the control and LM1 groups were significantly decreased after the infection with EIEC (P < 0.05), whereas the body weight of mice in the LR1 group did not change significantly (P > 0.05). The lowest diarrhea rate was recorded in the LR1 group after infection with EIEC. The results showed that the number of pathogens in the control group was higher than that in the experimental groups. The sequence analysis and OTU classification showed that the duodenum, ileum, and cecum of mice in the LR1 group had the highest number of OTUs compared with other groups. Whereas, the diversity analysis showed that in duodenum, ileum and cecum of mice in the LR1 group had the highest abundance and diversity. The composition of intestinal microbes indicated the presence of high proportions of Firmicutes, Proteobacteria and Bacteroidetes. Heat map analysis indicated high abundance of Bdello vibrio in the duodenum of mice in the LR1 group, while many pathogens were found in the different part of intestines in the control group, such as Streptococcus, Clostridium and Pseudomonas. In conclusion, pre-supplementation of LR1 alleviate the clinical symptoms caused by E. coli, and promote a healthy gut flora.
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Affiliation(s)
- Yaping Wang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, PR China
| | - Aoyun Li
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, PR China
| | - Lihong Zhang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, PR China
| | - Muhammad Waqas
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, PR China
| | - Khalid Mehmood
- University College of Veterinary & Animal Sciences, Islamia University of Bahawalpur, 61100, Pakistan
| | - Mudassar Iqbal
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, PR China; University College of Veterinary & Animal Sciences, Islamia University of Bahawalpur, 61100, Pakistan
| | - Can Muyou
- Institute of Grass Science, Tibet Academy of Agricultural and Animal Husbandry Sciences, Tibet, 860000, PR China
| | - Zhixing Li
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, PR China
| | - Yi Lian
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, PR China
| | - Suolang Sizhu
- College of Animals Husbandry and Veterinary Medicine, Tibet Agriculture and Animal Husbandry University, Linzhi, Tibet, 860000, PR China
| | - Jiakui Li
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, PR China; College of Animals Husbandry and Veterinary Medicine, Tibet Agriculture and Animal Husbandry University, Linzhi, Tibet, 860000, PR China.
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Wang Y, Li A, Liu J, Mehmood K, Wangdui B, Shi H, Luo X, Zhang H, Li J. L. pseudomesenteroides and L. johnsonii isolated from yaks in Tibet modulate gut microbiota in mice to ameliorate enteroinvasive Escherichia coli-induced diarrhea. Microb Pathog 2019; 132:1-9. [PMID: 30999021 DOI: 10.1016/j.micpath.2019.04.020] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Revised: 03/17/2019] [Accepted: 04/11/2019] [Indexed: 01/07/2023]
Abstract
Enteroinvasive Escherichia coli (EIEC) are well-known food-borne pathogens that cause animal intestinal diseases. Lactobacillus is believed to inhibit intestinal pathogens and maintain a healthy gut microbiota. This study aimed to investigate the effects of pre-supplementation of Lactobacillus from yaks (4500m) to prevent the clinical symptoms and the improvement of the disordered flora caused by E. coli infection. Forty healthy mice were randomized to four study groups (n = 10); Leuconostoc pseudomesenteroides (LP1), Lactobacillus johnsonii (LJ1), blank control, and control groups. Mice in the LP1, LJ1, and control groups were intraperitoneally challenged with EIEC O124 (1 × 109 CFU) on day 23. After two days, the mice in control group were recorded for high mortality. The diarrhea in LP1 and LJ1 groups was much lower than that in the control group, and no death was recorded. In histopathology, pre-supplementation of LJ1 and LP1 relieved the damage to the liver, spleen and duodenum caused by E. coli. In addition, the normal intestinal microecology was also affected by infection of EIEC, including an increase in relative abundance of Proteobacteria. At the same time, the beneficial bacteria were increased and harmful bacteria were decreased in different intestinal segments of the LJ1 and LP1 groups compared to the control group. In conclusion, pre-supplementation of LP1 and LJ1 can mitigate EIEC-induced intestinal flora dysbiosis and can also reduce EIEC-associated diarrhea.
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Affiliation(s)
- Yaping Wang
- College of Animals Husbandry and Veterinary Medicine, Tibet Agriculture and Animal Husbandry University, Linzhi, Tibet, 860000, PR China; College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, PR China
| | - Aoyun Li
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, PR China
| | - Juanjuan Liu
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, PR China
| | - Khalid Mehmood
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, PR China; (c)University College of Veterinary & Animal Sciences, Islamia University of Bahawalpur, 63100, Pakistan
| | - Basang Wangdui
- Institute of Animal Husbandry, Academy of Agriculture and Animal Husbandry, Tibet Autonomous Region, PR China
| | - Hongmei Shi
- Animal Husbandry and Veterinary Science Research Institute of Gannan Prefecture, PR China
| | - Xiaolin Luo
- Sichuan Academy of Grassland Science, Chengdu, Sichuan, 624400, PR China
| | - Hui Zhang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, PR China
| | - Jiakui Li
- College of Animals Husbandry and Veterinary Medicine, Tibet Agriculture and Animal Husbandry University, Linzhi, Tibet, 860000, PR China; College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, PR China.
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Kwak JY, Lamousé-Smith ESN. Can probiotics enhance vaccine-specific immunity in children and adults? Benef Microbes 2017; 8:657-670. [PMID: 28856905 DOI: 10.3920/bm2016.0147] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The growing use of probiotics by the general public has heightened the interest in understanding the role of probiotics in promoting health and preventing disease. General practitioners and specialists often receive inquiries from their patients regarding probiotic products and their use to ward off systemic infection or intestinal maladies. Enhanced immune function is among the touted health benefits conferred by probiotics but has not yet been fully established. Results from recent clinical trials in adults suggest a potential role for probiotics in enhancing vaccine-specific immunity. Although almost all vaccinations are given during infancy and childhood, the numbers of and results from studies using probiotics in pediatric subjects are limited. This review evaluates recent clinical trials of probiotics used to enhance vaccine-specific immune responses in adults and infants. We highlight meaningful results and the implications of these findings for designing translational and clinical studies that will evaluate the potential clinical role for probiotics. We conclude that the touted health claims of probiotics for use in children to augment immunity warrant further investigation. In order to achieve this goal, a consensus should be reached on common study designs that apply similar treatment timelines, compare well-characterised probiotic strains and monitor effective responses against different classes of vaccines.
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Affiliation(s)
- J Y Kwak
- 1 Department of Pediatrics, Columbia University Medical Center, PH17-105G, 622 West 168th Street, New York, NY 10032, USA
| | - E S N Lamousé-Smith
- 1 Department of Pediatrics, Columbia University Medical Center, PH17-105G, 622 West 168th Street, New York, NY 10032, USA
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Treven P, Mrak V, Bogovič Matijašić B, Horvat S, Rogelj I. Administration of probiotics Lactobacillus rhamnosus GG and Lactobacillus gasseri K7 during pregnancy and lactation changes mouse mesenteric lymph nodes and mammary gland microbiota. J Dairy Sci 2015; 98:2114-28. [PMID: 25622869 DOI: 10.3168/jds.2014-8519] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Accepted: 12/09/2014] [Indexed: 01/11/2023]
Abstract
The milk and mammary gland (MG) microbiome can be influenced by several factors, such as mode of delivery, breastfeeding, maternal lifestyle, health status, and diet. An increasing number of studies show a variety of positive effects of consumption of probiotics during pregnancy and breastfeeding on the mother and the newborn. The aim of this study was to investigate the effect of oral administration of probiotics Lactobacillus gasseri K7 (LK7) and Lactobacillus rhamnosus GG (LGG) during pregnancy and lactation on microbiota of the mouse mesenteric lymph nodes (MLN), MG, and milk. Pregnant FVB/N mice were fed skim milk or probiotics LGG or LK7 resuspended in skim milk during gestation and lactation. On d 3 and 8 postpartum, blood, feces, MLN, MG, and milk were analyzed for the presence of LGG or LK7. The effects of probiotics on MLN, MG, and milk microbiota was evaluated by real-time PCR and by 16S ribosomal DNA 454-pyrosequencing. In 5 of 8 fecal samples from the LGG group and in 5 of 8 fecal samples from the LK7 group, more than 1 × 10(3) of live LGG or LK7 bacterial cells were detected, respectively, whereas no viable LGG or LK7 cells were detected in the control group. Live lactic acid bacteria but no LGG or LK7 were detected in blood, MLN, and MG. Both probiotics significantly increased the total bacterial load as assessed by copies of 16S ribosomal DNA in MLN, and a similar trend was observed in MG. Metagenomic sequencing revealed that both probiotics increased the abundance of Firmicutes in MG, especially the abundance of lactic acid bacteria. The Lactobacillus genus appeared exclusively in MG from probiotic groups. Both probiotics influenced MLN microbiota by decreasing diversity (Chao1) and increasing the distribution of species (Shannon index). The LGG probiotic also affected the MG microbiota as it increased diversity and distribution of species and proportions of the genera Lactobacillus and Bifidobacterium. These results provide evidence that probiotics can modulate the bacterial composition of MLN and MG microbiota in ways that could improve the health of the MG and, ultimately, the health of the newborn.
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Affiliation(s)
- P Treven
- University of Ljubljana, Biotechnical Faculty, Institute of Dairy Science and Probiotics, Groblje 3, SI-1230 Domžale, Slovenia.
| | - V Mrak
- University of Ljubljana, Biotechnical Faculty, Chair for Genetics, Animal Biotechnology and Immunology, Groblje 3, SI-1230 Domžale, Slovenia
| | - B Bogovič Matijašić
- University of Ljubljana, Biotechnical Faculty, Institute of Dairy Science and Probiotics, Groblje 3, SI-1230 Domžale, Slovenia
| | - S Horvat
- University of Ljubljana, Biotechnical Faculty, Chair for Genetics, Animal Biotechnology and Immunology, Groblje 3, SI-1230 Domžale, Slovenia; National Institute of Chemistry, Hajdrihova 19, SI-1001, Ljubljana, Slovenia
| | - I Rogelj
- University of Ljubljana, Biotechnical Faculty, Institute of Dairy Science and Probiotics, Groblje 3, SI-1230 Domžale, Slovenia
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Mavrič A, Tompa G, Trmčić A, Rogelj I, Bogovič Matijašić B. Bacteriocins of Lactobacillus gasseri K7 – Monitoring of gassericin K7 A and B genes’ expression and isolation of an active component. Process Biochem 2014. [DOI: 10.1016/j.procbio.2014.04.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Improved Draft Genome Sequence of Probiotic Strain Lactobacillus gasseri K7. GENOME ANNOUNCEMENTS 2014; 2:2/4/e00725-14. [PMID: 25059871 PMCID: PMC4110229 DOI: 10.1128/genomea.00725-14] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Lactobacillus gasseri K7 is an isolate from infant feces and has in vitro and in vivo established probiotic properties. Here, we report the improved version of the draft genome sequence, which comprises 8 scaffolds (13 contigs), a total length of 1.99 Mb, and 1,841 predicted protein-coding sequences.
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