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Liu Q, Yang Y, Pan M, Shi K, Mo D, Li Y, Wang M, Guo L, Qian Z. Camptothecin multifunctional nanoparticles effectively achieve a balance between the efficacy of breast cancer treatment and the preservation of intestinal homeostasis. Bioact Mater 2024; 41:413-426. [PMID: 39184827 PMCID: PMC11342206 DOI: 10.1016/j.bioactmat.2024.07.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2024] [Revised: 07/27/2024] [Accepted: 07/27/2024] [Indexed: 08/27/2024] Open
Abstract
Camptothecin (CPT) exhibits potent antitumor activity; however, its clinical application is limited by significant gastrointestinal adverse effects (GAEs). Although the severity of GAEs associated with CPT derivatives has decreased, the incidence rate of these adverse effects has remained high. CPT multifunctional nanoparticles (PCRHNs) have the potential to increase the efficacy of CPT while reducing side effects in major target organs; however, the impact of PCRHNs on the GAEs from CPT remains uncertain. Here, we investigated the therapeutic effects of PCRHNs and different doses of CPT and examined their impacts on the intestinal barrier and the intestinal microbiota. We found that the therapeutic efficacy of PCRHNs + Laser treatment was superior to that of high-dose CPT, and PCRHNs + Laser treatment also provided greater benefits by helping maintain intestinal barrier integrity, intestinal microbiota diversity, and intestinal microbiota abundance. In summary, compared to high-dose CPT treatment, PCRHNs + Laser treatment can effectively balance therapeutic effects and GAEs. A high dose of CPT promotes the enrichment of the pathogenic bacteria Escherichia-Shigella, which may be attributed to diarrhea caused by CPT, thus leading to a reduction in microbial burden; additionally, Escherichia-Shigella rapidly grows and occupies niches previously occupied by other bacteria that are lost due to diarrhea. PCRHNs + Laser treatment increased the abundance of Lactobacillus (probiotics), possibly due to the photothermal effect of the PCRHNs. This effect increased catalase activity, thus facilitating the conversion of hydrogen peroxide into oxygen within tumors and increasing oxygen levels in the body, which is conducive to the growth of facultative anaerobic bacteria.
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Affiliation(s)
- Qingya Liu
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yun Yang
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Meng Pan
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Kun Shi
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Dong Mo
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yicong Li
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Meng Wang
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Linfeng Guo
- Department of Plastic and Burn Surgery, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Zhiyong Qian
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
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Zhang T, Lv Y, Zhao Y, Yang J, Qian B, Zhu Y, Zhao W, Zhu M. Changes in intestinal flora of mice induced by rEg.P29 epitope peptide vaccines. Immun Inflamm Dis 2023; 11:e1082. [PMID: 38018604 PMCID: PMC10664826 DOI: 10.1002/iid3.1082] [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] [Received: 06/20/2023] [Revised: 10/20/2023] [Accepted: 10/26/2023] [Indexed: 11/30/2023] Open
Abstract
OBJECTIVE Cystic echinococcosis (CE), a zoonotic parasitic disease caused by Echinococcus granulosus, remains a public health and socioeconomic issue worldwide, making its prevention and treatment of vital importance. The aim of this study was to investigate changes in the intestinal microbiota of mice immunized with three peptide vaccines based on the recombinant antigen of E. granulosus, P29 (rEg.P29), with the hope of providing more valuable information for the development of vaccines against CE. METHODS Three peptide vaccines, rEg.P29T , rEg.P29B , and rEg.P29T + B , were prepared based on rEg.P29, and a subcutaneous immunization model was established. The intestinal floras of mice in the different immunization groups were analyzed by 16 S rRNA gene sequencing. RESULTS The intestinal microbiota analysis at both immunization time points revealed that Firmicutes, Bacteroidota, and Verrucomicrobiota were the predominant flora at the phylum level, while at the genus level, Akkermansia, unclassified_Muribaculaceae, Lachnospiraceae_NK4A136_group, and uncultured_rumen bacterium were the dominant genera. Some probiotics in the intestines of mice were significantly increased after immunization with the peptide vaccines, such as Lactobacillus_taiwanensis, Lactobacillus_reuteri, Lachnospiraceae_NK4A136_group, Bacteroides_acidifaciens, and so forth. Meanwhile, some harmful or conditionally pathogenic bacteria were decreased, such as Turicibacter sanguinis, Desulfovibrio_fairfieldensis, Clostridium_sp, and so forth, most of which are associated with inflammatory or infectious diseases. Kyoto Encyclopaedia of Genes and Genomes enrichment analysis revealed that the differential flora were enriched in multiple metabolic pathways, primarily biological systems, human diseases, metabolism, cellular processes, and environmental information processing. CONCLUSION In this study, we comprehensively analyzed and compared changes in the intestinal microbiota of mice immunized with three peptide vaccines as well as their related metabolic pathways, providing a theoretical background for the development of novel vaccines against E. granulosus.
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Affiliation(s)
- Tingting Zhang
- School of Clinical MedicineNingxia Medical UniversityYinchuanChina
- Key Laboratory of Common Infectious Disease Prevention and Control in NingxiaYinchuanChina
| | - Yongxue Lv
- Key Laboratory of Common Infectious Disease Prevention and Control in NingxiaYinchuanChina
- School of Basic Medical SciencesNingxia Medical UniversityYinchuanChina
| | - Yinqi Zhao
- Key Laboratory of Common Infectious Disease Prevention and Control in NingxiaYinchuanChina
- Science and Technology Center of Ningxia Medical UniversityYinchuanChina
| | - Jihui Yang
- Key Laboratory of Common Infectious Disease Prevention and Control in NingxiaYinchuanChina
- Science and Technology Center of Ningxia Medical UniversityYinchuanChina
| | - Bingshuo Qian
- General Hospital of Ningxia Medical UniversityYinchuanChina
| | - Yazhou Zhu
- Key Laboratory of Common Infectious Disease Prevention and Control in NingxiaYinchuanChina
| | - Wei Zhao
- Key Laboratory of Common Infectious Disease Prevention and Control in NingxiaYinchuanChina
- School of Basic Medical SciencesNingxia Medical UniversityYinchuanChina
| | - Mingxing Zhu
- Key Laboratory of Common Infectious Disease Prevention and Control in NingxiaYinchuanChina
- Science and Technology Center of Ningxia Medical UniversityYinchuanChina
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Chen L, Wang Y, Li X, MacAdam JW, Zhang Y. Interaction between plants and epiphytic lactic acid bacteria that affect plant silage fermentation. Front Microbiol 2023; 14:1164904. [PMID: 37362945 PMCID: PMC10290204 DOI: 10.3389/fmicb.2023.1164904] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 05/17/2023] [Indexed: 06/28/2023] Open
Abstract
Lactic acid bacteria (LAB) have the ability to ferment water-soluble carbohydrates, resulting in the production of significant amounts of lactic acid. When utilized as additives in silage fermentation and feed, they have been shown to enhance the quality of these products. Epiphytic LAB of plants play a major role in the fermentation of silage plants. Plant species in turn affect the community structure of epiphytic LAB. In recent years, an increasing number of studies have suggested that epiphytic LAB are more effective than exogenous LAB when applied to silage. Inoculating silage plants with epiphytic LAB has attracted extensive attention because of the potential to improve the fermentation quality of silages. This review discusses the interaction of epiphytic LAB with plants during silage fermentation and compares the effects of exogenous and epiphytic LAB on plant fermentation. Overall, this review provides insight into the potential benefits of using epiphytic LAB as an inoculant and proposes a theoretical basis for improving silage quality.
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Affiliation(s)
- Lijuan Chen
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Yili Wang
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Xi Li
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Jennifer W. MacAdam
- College of Agriculture and Applied Sciences, Utah State University, Logan, UT, United States
| | - Yunhua Zhang
- College of Resources and Environment, Anhui Agricultural University, Hefei, China
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4
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Li H, Ran Q, Jia Z, Shuai Y, Zhou Q, Guan H. Effect of different dry matter content on fermentation characteristics and nutritional quality of Napier grass silage with novel lactic acid bacteria strains. Lett Appl Microbiol 2023; 76:7017840. [PMID: 36722167 DOI: 10.1093/lambio/ovad018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 01/01/2023] [Accepted: 01/30/2023] [Indexed: 02/02/2023]
Abstract
To investigate the characteristics of different LAB strains isolated from subtropics and their effects on Napier grass (Pennisetum purpureum Schum.) silage with two dry matter (DM) levels, sugar fermentation pattern, and growth profiles of three screened lactic acid bacteria (LAB) strains [Pediococcus pentosaceus (PP04), Weissella cibaria (WC10), and Lactobacillus plantarum (LP694)] were characterized, and then used either individually or in combination at 1.0 × 106 cfu g-1 fresh weight to inoculate grass having 15% or 25% DM. Treatments were applied: (1) no inoculant (control); (2) PP04; (3) WC10; (4) LP694; (5) M-1 (PP04: WC10 = 2:1); (6) M-2 (PP04: LP694 = 1:2); (7) M-3 (WC10: LP694 = 2:1); (8) M-4 (PP04: WC10: LP694 = 2:1:1). The results showed that all inoculations increased LAB, DM recovery, and lactic acid (LA) concentration, while decreasing pH, the ammonia nitrogen/total nitrogen (NH3-N/TN), and butyric acid (BA) concentration compared to control group in both DM. However, the effect of inoculations was very limited at 15% DM. Silages with inoculants achieved higher silage quality at 25% DM than 15% DM. The different LAB inoculants result in significant differences in silage quality, while W. cibaria decreased the pH and inhibited the growth of undesirable bacteria and those characteristics were not affected by the DM content.
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Affiliation(s)
- Haiping Li
- Key Laboratory of Superior Forage Germplasm in the Qinghai-Tibetan Plateau, Grassland Institute, Qinghai Academy of Animal Science and Veterinary Medicine, Qinghai University, Xining 810016, China.,School of Mathematics and Statistics, Qinghai Normal University, Xining 810016, China
| | - Qifan Ran
- Institute of Grassland Science, Chongqing Academy of Animal Science, Chongqing 402460, China
| | - Zhifeng Jia
- Key Laboratory of Superior Forage Germplasm in the Qinghai-Tibetan Plateau, Grassland Institute, Qinghai Academy of Animal Science and Veterinary Medicine, Qinghai University, Xining 810016, China
| | - Yang Shuai
- Department of Plant System Biology, VIB Center, 9052 Ghent, Belgium
| | - Qingping Zhou
- Sichuan Zoige Alpine Wetland Ecosystem National Observation and Research Station, Southwest Minzu University, Chengdu 610041, China
| | - Hao Guan
- Sichuan Zoige Alpine Wetland Ecosystem National Observation and Research Station, Southwest Minzu University, Chengdu 610041, China
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5
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Andrada E, Mechoud MA, Abeijón-Mukdsi MC, Chagra Dib EP, Cerviño S, Perez Chaia A, Medina RB. Ferulic Acid Esterase Producing Lactobacillus johnsonii from Goat Feces as Corn Silage Inoculants. Microorganisms 2022; 10:1732. [PMID: 36144334 PMCID: PMC9500823 DOI: 10.3390/microorganisms10091732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 08/19/2022] [Accepted: 08/22/2022] [Indexed: 11/17/2022] Open
Abstract
Ferulic acid esterase (FAE+)-producing lactobacilli are being studied as silage inoculants due to their potential of increasing forage fiber digestibility. In this work, three FAE+ Lactobacillus (L.) johnsonii strains were isolated from caprine feces and characterized according to their potential probiotic characteristics and as silage inoculants. Limosilactobacillus fermentum CRL1446, a human probiotic isolated from goat cheese, was also included in the experiments as a potential silage inoculant. FAE activity quantification, probiotic characterization, and growth in maize aqueous extract indicated that L. johnsonii ETC187 might have a better inoculant and probiotic aptitude. Nevertheless, results in whole-corn mini silos indicated that, although acid detergent fiber (ADF) was significantly reduced by this strain (3% compared with the uninoculated (UN) group), L. johnsonii ETC150 and CRL1446 not only induced similar ADF reduction but also reduced dry matter (DM) loss (by 7.3% and 6.5%, respectively) compared with the UN group. Additionally, CRL1446 increased in vitro DM degradability by 10%. All treatments reduced gas losses when compared with the UN group. The potential probiotic features of these strains, as well as their beneficial impact on corn fermentation shown in this study, encourage further studies as enhancers in animal production.
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Affiliation(s)
- Estefania Andrada
- Centro de Referencia para Lactobacilos, Consejo Nacional de Investigaciones Científicas y Técnicas, San Miguel de Tucumán, Tucumán T4000ILC, Argentina
- Facultad de Agronomía y Zootecnia, Universidad Nacional de Tucumán, San Miguel de Tucumán, Tucumán T4000ACS, Argentina
| | - Mónica Adriana Mechoud
- Centro de Referencia para Lactobacilos, Consejo Nacional de Investigaciones Científicas y Técnicas, San Miguel de Tucumán, Tucumán T4000ILC, Argentina
| | - María Claudia Abeijón-Mukdsi
- Centro de Referencia para Lactobacilos, Consejo Nacional de Investigaciones Científicas y Técnicas, San Miguel de Tucumán, Tucumán T4000ILC, Argentina
| | - Elsa Patricia Chagra Dib
- Estación Experimental Agropecuaria Salta, Instituto Nacional de Tecnología Agropecuaria, Cerrillos, Salta A4403XAA, Argentina
| | - Santiago Cerviño
- Facultad de Agronomía y Zootecnia, Universidad Nacional de Tucumán, San Miguel de Tucumán, Tucumán T4000ACS, Argentina
- Zona Valles Calchaquíes, Subsecretaría de Agricultura Familiar, Campesina e Indígena, Ministerio de Agricultura, Ganadería y Pesca, San Miguel de Tucumán, Tucumán T4000GBD, Argentina
| | - Adriana Perez Chaia
- Centro de Referencia para Lactobacilos, Consejo Nacional de Investigaciones Científicas y Técnicas, San Miguel de Tucumán, Tucumán T4000ILC, Argentina
| | - Roxana Beatriz Medina
- Centro de Referencia para Lactobacilos, Consejo Nacional de Investigaciones Científicas y Técnicas, San Miguel de Tucumán, Tucumán T4000ILC, Argentina
- Facultad de Agronomía y Zootecnia, Universidad Nacional de Tucumán, San Miguel de Tucumán, Tucumán T4000ACS, Argentina
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Application and Future Prospective of Lactic Acid Bacteria as Natural Additives for Silage Production—A Review. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11178127] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Ensiling is one of the essential processes to preserve fodder with high nutrients and microbiological quality. The forages before ensiling have a limited number of bacteria associated with the controlled fermentation process. Undesirable microbes can grow in silages when there is not efficient fermentation. Such kinds of microbes might cause pathogenic or toxic compounds that affect animal and human health. Therefore, it is necessary to inoculate potent starter cultures. Lactic acid bacteria’s (LABs) have been considered the most prominent microbial additives used to improve the quality of silage. Currently, LABs have been used in modern and sustainable agriculture systems due to their biological potential. Recently, many scientists have increased their focus on developing nutrient-rich animal feed from forages with LAB. This current review focuses on issues related to forage preservation in the form of silages, how undesirable microbes affect the fermentation process, the critical role of LAB in silage production, and the selection of potent LABs to effectively control unwanted microbial growth and promote those which favor animal growth.
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Tohno M, Tanizawa Y, Kojima Y, Sakamoto M, Ohkuma M, Kobayashi H. Lactobacillus corticis sp. nov., isolated from hardwood bark. Int J Syst Evol Microbiol 2021; 71. [PMID: 34264810 DOI: 10.1099/ijsem.0.004882] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
During a study on the biodiversity of bacteria that inhabit woody biomass, we isolated a strain coded B40T from hardwood bark used as a compost ingredient in Japan. The strain, characterized as B40T, is a Gram-stain-positive, rod-shaped, non-motile, non-spore-forming and catalase-negative bacterium. This novel isolate showed growth at 30-50 °C, at pH 3.5-7.5 and in the presence of up to 4 % (w/v) NaCl. Its major fatty acids include C16:0, C18:1 ω9c and summed feature 8. The genomic DNA G+C content of strain B40T is 42.2 mol%. Results of 16S rRNA gene sequence-based phylogenetic analysis indicated that strain B40T belongs to the genus Lactobacillus and the closest neighbours of strain B40T are Lactobacillus gigeriorum 202T (95.7 %), Lactobacillus pasteurii CRBIP 24.76T (95.6 %), Lactobacillus psittaci DSM 15354T (95.4 %), Lactobacillus fornicalis TV1018T (95.4 %) and Lactobacillus jensenii ATCC 25258T (95.2 %). The amino acid sequence-based phylogenetic analyses of 489 shared protein-encoding genes showed that the strain forms a phylogenetically independent lineage in the genus Lactobacillus but could not be assigned to any known species. Strain B40T has an average nucleotide identify of <70.2 % and a digital DNA-DNA hybridization value of 19.2 % compared with the strains of other closely related Lactobacillus species. Differential genomic, phenotypic and chemotaxonomic properties, in addition to phylogenetic analyses, indicated that strain B40T represents a novel species of the genus Lactobacillus, for which the name Lactobacillus corticis sp. nov. is proposed. The strain type is B40T (=JCM 32597T=DSM 107967T).
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Affiliation(s)
- Masanori Tohno
- Research Center of Genetic Resources, Core Technology Research Headquarters, National Agriculture and Food Research Organization, Tsukuba, Ibaraki, Japan.,Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization Nasushiobara, Tochigi, Japan
| | - Yasuhiro Tanizawa
- Department of Informatics, National Institute of Genetics, Mishima, Shizuoka, Japan
| | - Yoichiro Kojima
- Central Region Agricultural Research Center, National Agriculture and Food Research Organization, Nasushiobara, Tochigi, Japan
| | - Mitsuo Sakamoto
- Microbe Division/Japan Collection of Microorganisms, RIKEN BioResource Research Center, Tsukuba, Ibaraki, Japan
| | - Moriya Ohkuma
- Microbe Division/Japan Collection of Microorganisms, RIKEN BioResource Research Center, Tsukuba, Ibaraki, Japan
| | - Hisami Kobayashi
- Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization Nasushiobara, Tochigi, Japan
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8
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Li XY, Li LX, Li Y, Zhou RC, Li B, Gu X, Fu SC, Jin BY, Zuo XL, Li YQ. Complete genome sequencing of Peyer's patches-derived Lactobacillus taiwanensis CLG01, a potential probiotic with antibacterial and immunomodulatory activity. BMC Microbiol 2021; 21:68. [PMID: 33639835 PMCID: PMC7916312 DOI: 10.1186/s12866-021-02127-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 02/11/2021] [Indexed: 12/13/2022] Open
Abstract
Background The genus Lactobacillus is an important component of the gastrointestinal tract of human and animals and commonly considered as probiotic. L. taiwanensis has long been proposed to be a probiotic whereas understanding on this species is still in its infancy. Genomic information of L. taiwanensis is fairly limited. Extensive characterization of its beneficial traits is needed. Results A new strain CLG01 of L. taiwanensis was isolated from mouse Peyer’s patches. We established its probiotic profile through in vitro experiments. Complete genome of this strain was also sequenced and analyzed. L. taiwanensis CLG01 showed robust tolerance to acid and a degree of tolerance to bile salt with a promising antibacterial activity against a broad spectrum of pathogenic bacteria. In vitro treatment of mouse RAW 264.7 macrophage cells with heat-killed bacteria and bacterial supernatant of L. taiwanensis CLG01 resulted in enhancement of immune responses and upregulated expression of TNF-α and IL-6. The strain CLG01 also increased the IL-10 production of macrophages when co-treated with lipopolysaccharide (LPS). Complete genome of L. taiwanensis CLG01 contained a 1.89 Mb chromosome and two plasmids. Further genomic analysis revealed the presence of genes related to its resistance to different stresses and the beneficial effects mentioned above. Moreover, biosynthetic gene clusters (BGCs) encoding antimicrobial peptides, like bacteriocin, linear azol(in)e-containing peptide (LAP) and lanthipeptide, were also identified in the genome of L. taiwanensis CLG01. Conclusions L. taiwanensis CLG01, isolated from mouse Peyer’s patches, is the first L. taiwanensis strain with both phenotypes and genotypes systematically studied. These preliminary data confirmed the role of L. taiwanensis CLG01 as a potential probiotic candidate with antibacterial and immunomodulatory activity, which provide insight for further investigation to this species. Supplementary Information The online version contains supplementary material available at 10.1186/s12866-021-02127-z.
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Affiliation(s)
- Xiao-Yu Li
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, 107 Wenhuaxi Road, Jinan, 250012, Shandong Province, China.,Laboratory of Translational Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Li-Xiang Li
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, 107 Wenhuaxi Road, Jinan, 250012, Shandong Province, China.,Laboratory of Translational Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Yan Li
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, 107 Wenhuaxi Road, Jinan, 250012, Shandong Province, China.,Laboratory of Translational Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Ru-Chen Zhou
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, 107 Wenhuaxi Road, Jinan, 250012, Shandong Province, China.,Laboratory of Translational Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Bing Li
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, 107 Wenhuaxi Road, Jinan, 250012, Shandong Province, China.,Laboratory of Translational Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Xiang Gu
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, 107 Wenhuaxi Road, Jinan, 250012, Shandong Province, China.,Laboratory of Translational Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Shi-Chen Fu
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, 107 Wenhuaxi Road, Jinan, 250012, Shandong Province, China.,Laboratory of Translational Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Bi-Ying Jin
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, 107 Wenhuaxi Road, Jinan, 250012, Shandong Province, China.,Laboratory of Translational Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Xiu-Li Zuo
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, 107 Wenhuaxi Road, Jinan, 250012, Shandong Province, China.,Laboratory of Translational Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.,Robot engineering laboratory for precise diagnosis and therapy of GI tumor, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Yan-Qing Li
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, 107 Wenhuaxi Road, Jinan, 250012, Shandong Province, China. .,Laboratory of Translational Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China. .,Robot engineering laboratory for precise diagnosis and therapy of GI tumor, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.
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9
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Xu D, Wang N, Rinne M, Ke W, Weinberg ZG, Da M, Bai J, Zhang Y, Li F, Guo X. The bacterial community and metabolome dynamics and their interactions modulate fermentation process of whole crop corn silage prepared with or without inoculants. Microb Biotechnol 2020; 14:561-576. [PMID: 32627363 PMCID: PMC7936295 DOI: 10.1111/1751-7915.13623] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 05/11/2020] [Accepted: 06/11/2020] [Indexed: 01/14/2023] Open
Abstract
Multi‐omics approach was adopted to investigate the modulation of bacterial microbiota and metabolome as well as their interactions in whole crop corn ensiling systems by inoculating homofermentative Lactobacillus plantarum or heterofermentative Lactobacillus buchneri. Inoculations of the two different inoculants resulted in substantial differences in microbial community and metabolic composition as well as their dynamics in ensiled corn. Inoculants also altered the correlations of microbiota in different manners, and various keystone species were identified in corn silages with different treatments. Many metabolites with biofunctional activities like bacteriostatic, antioxidant, central nervous system inhibitory and anti‐inflammatory were found in the present silage. A constitutive difference in microbiota dynamics was found for several pathways, which were upregulated by specific taxa in middle stage of fermentation, and widespread associations between metabolites with biofunctions and the species of lactic acid bacteria dominated in silage were observed. Multiple microbial and metabolic structures and dynamics were correlated and affected the fermentation process of the corn ensiling systems. Results of the current study improve our understanding of the complicated biological process underlying silage fermentation and provide a framework to re‐evaluate silages with biofunctions, which may contribute to target‐based regulation methods to produce functional silage for animal production.
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Affiliation(s)
- Dongmei Xu
- State Key Laboratory of Grassland and Agro-ecosystems, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China.,Probiotics and Biological Feed Research Center, Lanzhou University, Lanzhou, 730000, China
| | - Nian Wang
- Nextomics Biosciences Institute, Wuhan, 430000, China
| | - Marketta Rinne
- Natural Resources Institute Finland (Luke) Animale, Jokioinen, 31600, Finland
| | - Wencan Ke
- State Key Laboratory of Grassland and Agro-ecosystems, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China.,Probiotics and Biological Feed Research Center, Lanzhou University, Lanzhou, 730000, China
| | - Zwika G Weinberg
- Microbial Food-Safety Research Unit, Department of Food Quality and Safety, The Volcani Center, Agriculture Research Organization, Institute for Postharvest and Food Sciences, Derech HaMaccabim Road 68, POB 15159, Rishon-LeZion, 7528809, Israel
| | - Mi Da
- Nextomics Biosciences Institute, Wuhan, 430000, China
| | - Jie Bai
- State Key Laboratory of Grassland and Agro-ecosystems, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China.,Probiotics and Biological Feed Research Center, Lanzhou University, Lanzhou, 730000, China
| | - Yixin Zhang
- State Key Laboratory of Grassland and Agro-ecosystems, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China.,Probiotics and Biological Feed Research Center, Lanzhou University, Lanzhou, 730000, China
| | - Fuhou Li
- State Key Laboratory of Grassland and Agro-ecosystems, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China.,Probiotics and Biological Feed Research Center, Lanzhou University, Lanzhou, 730000, China
| | - Xusheng Guo
- State Key Laboratory of Grassland and Agro-ecosystems, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China.,Probiotics and Biological Feed Research Center, Lanzhou University, Lanzhou, 730000, China
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10
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Kim SW, Ha YJ, Bang KH, Lee S, Yeo JH, Yang HS, Kim TW, Lee KP, Bang WY. Potential of Bacteriocins from Lactobacillus taiwanensis for Producing Bacterial Ghosts as a Next Generation Vaccine. Toxins (Basel) 2020; 12:toxins12070432. [PMID: 32630253 PMCID: PMC7404994 DOI: 10.3390/toxins12070432] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 06/18/2020] [Accepted: 06/28/2020] [Indexed: 12/22/2022] Open
Abstract
Bacteriocins are functionally diverse toxins produced by most microbes and are potent antimicrobial peptides (AMPs) for bacterial ghosts as next generation vaccines. Here, we first report that the AMPs secreted from Lactobacillus taiwanensis effectively form ghosts of pathogenic bacteria and are identified as diverse bacteriocins, including novel ones. In detail, a cell-free supernatant from L. taiwanensis exhibited antimicrobial activities against pathogenic bacteria and was observed to effectively cause cellular lysis through pore formation in the bacterial membrane using scanning electron microscopy (SEM). The treatment of the cell-free supernatant with proteinase K or EDTA proved that the antimicrobial activity is mediated by AMPs, and the purification of AMPs using Sep-Pak columns indicated that the cell-free supernatant includes various amphipathic peptides responsible for the antimicrobial activity. Furthermore, the whole-genome sequencing of L. taiwanensis revealed that the strain has diverse bacteriocins, confirmed experimentally to function as AMPs, and among them are three novel bacteriocins, designated as Tan 1, Tan 2, and Tan 3. We also confirmed, using SEM, that Tan 2 effectively produces bacterial ghosts. Therefore, our data suggest that the bacteriocins from L. taiwanensis are potentially useful as a critical component for the preparation of bacterial ghosts.
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Affiliation(s)
- Sam Woong Kim
- Gene Analysis Center, Gyeongnam National University of Science & Technology, Jinju 52725, Korea;
| | - Yeon Jo Ha
- Department of Pharmaceutical Engineering, Gyeongnam National University of Science and Technology, Jinju 52725, Korea; (Y.J.H.); (K.H.B.)
| | - Kyu Ho Bang
- Department of Pharmaceutical Engineering, Gyeongnam National University of Science and Technology, Jinju 52725, Korea; (Y.J.H.); (K.H.B.)
| | - Seungki Lee
- National Institute of Biological Resources (NIBR), Environmental Research Complex, Incheon 22689, Korea; (S.L.); (J.-H.Y.); (H.-S.Y.)
| | - Joo-Hong Yeo
- National Institute of Biological Resources (NIBR), Environmental Research Complex, Incheon 22689, Korea; (S.L.); (J.-H.Y.); (H.-S.Y.)
| | - Hee-Sun Yang
- National Institute of Biological Resources (NIBR), Environmental Research Complex, Incheon 22689, Korea; (S.L.); (J.-H.Y.); (H.-S.Y.)
| | - Tae-Won Kim
- Department of pharmacology, College of Veterinary Medicine, Chungnam National University, Daejeon 34134, Korea;
| | - Kyu Pil Lee
- Department of physiology, College of Veterinary Medicine, Chungnam National University, Daejeon 34134, Korea
- Correspondence: (K.P.L.); (W.Y.B.); Tel.: +82-42-821-6754 (K.P.L.); +82-32-590-7206 (W.Y.B.)
| | - Woo Young Bang
- National Institute of Biological Resources (NIBR), Environmental Research Complex, Incheon 22689, Korea; (S.L.); (J.-H.Y.); (H.-S.Y.)
- Correspondence: (K.P.L.); (W.Y.B.); Tel.: +82-42-821-6754 (K.P.L.); +82-32-590-7206 (W.Y.B.)
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11
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Zheng J, Wittouck S, Salvetti E, Franz CMAP, Harris HMB, Mattarelli P, O'Toole PW, Pot B, Vandamme P, Walter J, Watanabe K, Wuyts S, Felis GE, Gänzle MG, Lebeer S. A taxonomic note on the genus Lactobacillus: Description of 23 novel genera, emended description of the genus Lactobacillus Beijerinck 1901, and union of Lactobacillaceae and Leuconostocaceae. Int J Syst Evol Microbiol 2020; 70:2782-2858. [PMID: 32293557 DOI: 10.1099/ijsem.0.004107] [Citation(s) in RCA: 1739] [Impact Index Per Article: 347.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
The genus Lactobacillus comprises 261 species (at March 2020) that are extremely diverse at phenotypic, ecological and genotypic levels. This study evaluated the taxonomy of Lactobacillaceae and Leuconostocaceae on the basis of whole genome sequences. Parameters that were evaluated included core genome phylogeny, (conserved) pairwise average amino acid identity, clade-specific signature genes, physiological criteria and the ecology of the organisms. Based on this polyphasic approach, we propose reclassification of the genus Lactobacillus into 25 genera including the emended genus Lactobacillus, which includes host-adapted organisms that have been referred to as the Lactobacillus delbrueckii group, Paralactobacillus and 23 novel genera for which the names Holzapfelia, Amylolactobacillus, Bombilactobacillus, Companilactobacillus, Lapidilactobacillus, Agrilactobacillus, Schleiferilactobacillus, Loigolactobacilus, Lacticaseibacillus, Latilactobacillus, Dellaglioa, Liquorilactobacillus, Ligilactobacillus, Lactiplantibacillus, Furfurilactobacillus, Paucilactobacillus, Limosilactobacillus, Fructilactobacillus, Acetilactobacillus, Apilactobacillus, Levilactobacillus, Secundilactobacillus and Lentilactobacillus are proposed. We also propose to emend the description of the family Lactobacillaceae to include all genera that were previously included in families Lactobacillaceae and Leuconostocaceae. The generic term 'lactobacilli' will remain useful to designate all organisms that were classified as Lactobacillaceae until 2020. This reclassification reflects the phylogenetic position of the micro-organisms, and groups lactobacilli into robust clades with shared ecological and metabolic properties, as exemplified for the emended genus Lactobacillus encompassing species adapted to vertebrates (such as Lactobacillus delbrueckii, Lactobacillus iners, Lactobacillus crispatus, Lactobacillus jensensii, Lactobacillus johnsonii and Lactobacillus acidophilus) or invertebrates (such as Lactobacillus apis and Lactobacillus bombicola).
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Affiliation(s)
- Jinshui Zheng
- Huazhong Agricultural University, State Key Laboratory of Agricultural Microbiology, Hubei Key Laboratory of Agricultural Bioinformatics, Wuhan, Hubei, PR China
| | - Stijn Wittouck
- Research Group Environmental Ecology and Applied Microbiology, Department of Bioscience Engineering, University of Antwerp, Antwerp, Belgium
| | - Elisa Salvetti
- Dept. of Biotechnology, University of Verona, Verona, Italy
| | - Charles M A P Franz
- Max Rubner-Institut, Department of Microbiology and Biotechnology, Kiel, Germany
| | - Hugh M B Harris
- School of Microbiology & APC Microbiome Ireland, University College Cork, Co. Cork, Ireland
| | - Paola Mattarelli
- University of Bologna, Dept. of Agricultural and Food Sciences, Bologna, Italy
| | - Paul W O'Toole
- School of Microbiology & APC Microbiome Ireland, University College Cork, Co. Cork, Ireland
| | - Bruno Pot
- Research Group of Industrial Microbiology and Food Biotechnology (IMDO), Vrije Universiteit Brussel, Brussels, Belgium
| | - Peter Vandamme
- Laboratory of Microbiology, Department of Biochemistry and Microbiology, Ghent University, Ghent, Belgium
| | - Jens Walter
- Department of Biological Sciences, University of Alberta, Edmonton, Canada.,Department of Agricultural, Food & Nutritional Science, University of Alberta, Edmonton, Canada
| | - Koichi Watanabe
- Food Industry Research and Development Institute, Bioresource Collection and Research Center, Hsinchu, Taiwan, ROC.,National Taiwan University, Dept. of Animal Science and Technology, Taipei, Taiwan, ROC
| | - Sander Wuyts
- Research Group Environmental Ecology and Applied Microbiology, Department of Bioscience Engineering, University of Antwerp, Antwerp, Belgium
| | | | - Michael G Gänzle
- Hubei University of Technology, College of Bioengineering and Food Science, Wuhan, Hubei, PR China.,Department of Agricultural, Food & Nutritional Science, University of Alberta, Edmonton, Canada
| | - Sarah Lebeer
- Research Group Environmental Ecology and Applied Microbiology, Department of Bioscience Engineering, University of Antwerp, Antwerp, Belgium
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12
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Trends in designing microbial silage quality by biotechnological methods using lactic acid bacteria inoculants: a minireview. World J Microbiol Biotechnol 2019; 35:76. [PMID: 31054017 PMCID: PMC6499736 DOI: 10.1007/s11274-019-2649-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Accepted: 04/26/2019] [Indexed: 11/23/2022]
Abstract
Ensiling is one of the best known method to preserve fodder. The forage before ensiling intended for silages usually contains a low number of lactic acid bacteria (LAB), so it is necessary to apply starter cultures of selected strains. Traditionally, LAB starter cultures were applied to lower the pH by producing lactic acid and to inhibit the growth of undesirable epiphytic microorganisms by competing for nutrients. Nowadays, LAB inoculants have become an effective tool for creating microbial quality of silages by selecting species with extraordinary features. Epiphytic microflora characteristic of plant material used for the production of silages and the sources of undesirable microflora in the ensiling process are discussed. This review focuses on the most frequently studied issues related to the microbial silage quality and the recent trends in increasing the quality by LAB inoculants, with respect to recent directions for selecting types of modern LAB for inoculation. Among them, the main trends described were prevention of the growth of filamentous fungi and detoxification of mycotoxins by LAB inoculants, inhibition of yeast growth by LAB present in preparations and limiting the development of pathogenic bacterial microflora through controlled fermentation with the participation of LAB and the presence of their metabolites.
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13
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Adetoye A, Pinloche E, Adeniyi BA, Ayeni FA. Characterization and anti-salmonella activities of lactic acid bacteria isolated from cattle faeces. BMC Microbiol 2018; 18:96. [PMID: 30165820 PMCID: PMC6118008 DOI: 10.1186/s12866-018-1248-y] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Accepted: 08/23/2018] [Indexed: 12/27/2022] Open
Abstract
Background Non typhoidal salmonellosis is one of the neglected zoonoses in most African countries. The use of sub-therapeutic doses of antibiotics as animal growth promoter enhances the emergence and dissemination of antimicrobial resistance in bacteria with food animal reservoirs and may also results in antibiotics residue in animal products. One promising alternative to antibiotics in animal feed is Lactic Acid Bacteria (LAB) as probiotics. This study was carried out to determine the anti-salmonella activities and suitability of LAB isolated from cattle faeces in Nigeria as potential probiotics in cattle feed. Method The test Salmonella enterica spp strains and LAB were isolated from cattle faeces and identified by MALDI-TOF MS and partial sequencing of 16S rRNA genes respectively. The anti-salmonella activities of the isolated LAB in co-culture, cell-free supernatant, inhibition of growth by viable LAB cells and quantification of organic acids were determined by standard techniques. The ability of the LAB strains to withstand gastric conditions, antibiotic susceptibility and their haemolytic ability on blood agar were also determined. Results A total of 88 LAB belonging to 15 species were isolated and identified from cattle faeces. The most abundant species were Streptococcus infantarius (26), Enterococcus hirae (12), Lactobacillus amylovorus (10), Lactobacillus mucosae (10) and Lactobacillus ingluviei (9). Most of the LAB strains showed good anti-salmonella activities against the test Salmonella enterica spp. with 2 Lactobacillus strains; Lactobacillus amylovorus C94 and Lactobacillus salivarius C86 exhibiting remarkable anti-salmonella activities with total inhibition of Salmonella spp after 18 hours of co-incubation. The selected strains were able to survive simultaneous growth at pH 3 and 7% bile concentration and are non hemolytic. Conclusion This study reports the vast diversity of culturable LAB in cattle faeces from Nigeria and their putative in-vitro antibacterial activity against Salmonella enterica spp isolated from cattle. Lactobacillus amylovorus C94 and Lactobacillus salivarius C86 demonstrated promising probiotic potentials in-vitro and will be further tested in-vivo in animal field trial.
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Affiliation(s)
- Adewale Adetoye
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, University of Ibadan, Ibadan, Nigeria
| | - Eric Pinloche
- Institute of Biological, Environmental and Rural SciencesAberystwyth University, Aberystwyth, United Kingdom
| | - Bolanle A Adeniyi
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, University of Ibadan, Ibadan, Nigeria
| | - Funmilola A Ayeni
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, University of Ibadan, Ibadan, Nigeria.
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14
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The evolution of ecological facilitation within mixed-species biofilms in the mouse gastrointestinal tract. ISME JOURNAL 2018; 12:2770-2784. [PMID: 30013162 DOI: 10.1038/s41396-018-0211-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2018] [Revised: 03/13/2018] [Accepted: 03/16/2018] [Indexed: 02/07/2023]
Abstract
The eco-evolutionary interactions among members of the vertebrate gut microbiota that ultimately result in host-specific communities are poorly understood. Here we show that Lactobacillus reuteri coexists with species that belong to the Lactobacillus johnsonii cluster (L. johnsonii, L. gasseri, and L taiwanensis) in a taxonomically wide range of rodents, suggesting cohabitation over evolutionary times. The two dominant Lactobacillus species found in wild mice establish a commensalistic relationship in gastric biofilms when introduced together into germ-free mice in which L. reuteri facilitates colonization of L. taiwanensis. Genomic analysis revealed allopatric diversification in strains of both species that originated from geographically separated locations (Scotland and France). Allopatry of the strains resulted in reduced formation of mixed biofilms in vitro, indicating that interspecies interactions in gastric Lactobacillus-biofilms are the result of an adaptive evolutionary process that occurred in a biogeographical context. In summary, these findings suggest that members within the vertebrate gut microbiota can evolve inter-dependencies through ecological facilitation, which could represent one mechanism by which host-specific bacterial communities assemble across vertebrate species and an explanation for their spatial and biogeographic patterns.
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15
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Zhang MZ, Yang M, Su H, Rollins D, Zhang S. Lactobacillus colini sp. nov., isolated from Northern Bobwhite (Colinus virginianus). Int J Syst Evol Microbiol 2017; 67:325-329. [PMID: 27902241 DOI: 10.1099/ijsem.0.001624] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2023] Open
Abstract
Biochemical and molecular studies were performed on five unknown bacterial strains isolated from the intestinal contents of Northern Bobwhites (Colinus virginianus) collected from western Texas, USA. The strains were Gram-stain-positive, catalase-negative, non-spore-forming rods arranged in single cells, pairs or short chains. Colonies on Columbia blood agar are circular, flat, entire, approximately 0.5-1.5 mm in diameter and surrounded with a zone of alpha-haemolysis at after incubation for 48 h at 37 °C. Colonies on MRS agar are umbonate with irregular edge, opaque and approximately 1-1.5 mm in diameter after incubation for 48 h. The 16S rRNA gene sequences of the isolates were identical and the highest sequence similarity (97 %) was found to the type strains of Lactobacillus gasseri, L. johnsonii and L. taiwanensis. The strains were distinguishable from related species of the genus Lactobacilluson the basis of carbohydrate fermentation, enzymatic production and fatty acid profiles. The peptidoglycan type is l-Lys-d-Asp (A4α). The DNA G+C content is 35.6 mol%. Major cellular fatty acids are C14 : 0, C16 : 0 and C18 : 1 ω9c. Based on phenotypic, phylogenetic and chemotaxonomic information, the strains represent a novel species of the genus Lactobacillus for which the name Lactobacillus colini sp. nov. is proposed. The type strain is 111144 L1T (=DSM 101872T=KCTC 21086T).
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Affiliation(s)
- Michael Z Zhang
- Department of Biomedical Sciences, College of Veterinary Medicine, University of Missouri, Columbia, MO 65211, USA
| | - Ming Yang
- Department of Veterinary Pathobiology, Veterinary Medical Diagnostic Laboratory, College of Veterinary Medicine, University of Missouri, Columbia, MO 65211, USA
| | - Hongwen Su
- Department of Pathobiology, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX 77845, USA
| | - Dale Rollins
- Rolling Plains Quail Research Foundation, Texas AgriLife Research, San Angelo, TX 76901, USA
| | - Shuping Zhang
- Department of Veterinary Pathobiology, Veterinary Medical Diagnostic Laboratory, College of Veterinary Medicine, University of Missouri, Columbia, MO 65211, USA
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16
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Schwab C, Tveit AT, Schleper C, Urich T. Gene expression of lactobacilli in murine forestomach biofilms. Microb Biotechnol 2014; 7:347-59. [PMID: 24702817 PMCID: PMC4241727 DOI: 10.1111/1751-7915.12126] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2013] [Revised: 02/20/2014] [Accepted: 03/02/2014] [Indexed: 02/01/2023] Open
Abstract
Lactobacilli populate the gastro-intestinal tract of vertebrates, and are used in food fermentations and as probiotics. Lactobacilli are also major constituents of stable biofilms in the forestomach of rodents. In order to investigate the lifestyle of these biofilm lactobacilli in C57BL/6 mice, we applied metatranscriptomics to analyse gene expression (assessed by mRNA) and community composition (assessed by rRNA). Lactobacillales were the major biofilm inhabitants (62-82% of rRNA reads), followed by Clostridiales (8-31% of rRNA reads). To identify mRNA transcripts specific for the forestomach, we compared forestomach and hindgut metatranscriptomes. Gene expression of the biofilm microbiota was characterized by high abundance of transcripts related to glucose and maltose utilization, peptide degradation, and amino acid transport, indicating their major catabolic and anabolic pathways. The microbiota transcribed genes encoding pathways enhancing oxidative stress (glutathione synthesis) and acid tolerance. Various pathways, including metabolite formation (urea degradation, arginine pathway, γ-aminobutyrate) and cell wall modification (DltA, cyclopropane-fatty-acyl-phospholipid synthase), contributed to acid tolerance, as judged from the transcript profile. In addition, the biofilm microbiota expressed numerous genes encoding extracellular proteins involved in adhesion and/or biofilm formation (e.g. MucBP, glycosyl hydrolase families 68 and 70). This study shed light on the lifestyle and specific adaptations of lactobacilli in the murine forestomach that might also be relevant for lactobacilli biofilms in other vertebrates, including humans.
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Affiliation(s)
- Clarissa Schwab
- Division of Archaea Biology and Ecogenomics, Department of Ecogenomics and Systems Biology, University of ViennaWien, Austria
| | | | - Christa Schleper
- Division of Archaea Biology and Ecogenomics, Department of Ecogenomics and Systems Biology, University of ViennaWien, Austria
| | - Tim Urich
- Division of Archaea Biology and Ecogenomics, Department of Ecogenomics and Systems Biology, University of ViennaWien, Austria
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17
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Reynolds LA, Smith KA, Filbey KJ, Harcus Y, Hewitson JP, Redpath SA, Valdez Y, Yebra MJ, Finlay BB, Maizels RM. Commensal-pathogen interactions in the intestinal tract: lactobacilli promote infection with, and are promoted by, helminth parasites. Gut Microbes 2014; 5:522-32. [PMID: 25144609 PMCID: PMC4822684 DOI: 10.4161/gmic.32155] [Citation(s) in RCA: 195] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
The intestinal microbiota are pivotal in determining the developmental, metabolic and immunological status of the mammalian host. However, the intestinal tract may also accommodate pathogenic organisms, including helminth parasites which are highly prevalent in most tropical countries. Both microbes and helminths must evade or manipulate the host immune system to reside in the intestinal environment, yet whether they influence each other's persistence in the host remains unknown. We now show that abundance of Lactobacillus bacteria correlates positively with infection with the mouse intestinal nematode parasite, Heligmosomoides polygyrus, as well as with heightened regulatory T cell (Treg) and Th17 responses. Moreover, H. polygyrus raises Lactobacillus species abundance in the duodenum of C57BL/6 mice, which are highly susceptible to H. polygyrus infection, but not in BALB/c mice, which are relatively resistant. Sequencing of samples at the bacterial gyrB locus identified the principal Lactobacillus species as L. taiwanensis, a previously characterized rodent commensal. Experimental administration of L. taiwanensis to BALB/c mice elevates regulatory T cell frequencies and results in greater helminth establishment, demonstrating a causal relationship in which commensal bacteria promote infection with an intestinal parasite and implicating a bacterially-induced expansion of Tregs as a mechanism of greater helminth susceptibility. The discovery of this tripartite interaction between host, bacteria and parasite has important implications for both antibiotic and anthelmintic use in endemic human populations.
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Affiliation(s)
- Lisa A Reynolds
- Centre for Immunity, Infection and Evolution, and Institute of Immunology and Infection Research; Ashworth Laboratories; University of Edinburgh; Edinburgh, UK
- Michael Smith Laboratories; University of British Columbia; Vancouver, BC Canada
| | - Katherine A Smith
- Centre for Immunity, Infection and Evolution, and Institute of Immunology and Infection Research; Ashworth Laboratories; University of Edinburgh; Edinburgh, UK
| | - Kara J Filbey
- Centre for Immunity, Infection and Evolution, and Institute of Immunology and Infection Research; Ashworth Laboratories; University of Edinburgh; Edinburgh, UK
| | - Yvonne Harcus
- Centre for Immunity, Infection and Evolution, and Institute of Immunology and Infection Research; Ashworth Laboratories; University of Edinburgh; Edinburgh, UK
| | - James P Hewitson
- Centre for Immunity, Infection and Evolution, and Institute of Immunology and Infection Research; Ashworth Laboratories; University of Edinburgh; Edinburgh, UK
| | - Stephen A Redpath
- Department of Microbiology and Immunology; University of British Columbia; Vancouver, BC Canada
| | - Yanet Valdez
- Michael Smith Laboratories; University of British Columbia; Vancouver, BC Canada
| | - María J Yebra
- Laboratorio de Bacterias Lácticas y Probióticos; Instituto de Agroquímica y Tecnología de los Alimentos; IATA-CSIC; Valencia, Spain
| | - B Brett Finlay
- Michael Smith Laboratories; University of British Columbia; Vancouver, BC Canada
- Department of Microbiology and Immunology; University of British Columbia; Vancouver, BC Canada
- Department of Biochemistry and Molecular Biology; University of British Columbia; Vancouver, BC Canada
| | - Rick M Maizels
- Centre for Immunity, Infection and Evolution, and Institute of Immunology and Infection Research; Ashworth Laboratories; University of Edinburgh; Edinburgh, UK
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18
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Huang CH, Chang MT, Huang L, Chu WS. The gyrase B gene as a molecular marker to resolve interspecific relationships within the Acetobacter pasteurianus group and a novel target for species-specific PCR. Eur Food Res Technol 2014. [DOI: 10.1007/s00217-013-2076-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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19
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Zeng H, Liu J, Jackson MI, Zhao FQ, Yan L, Combs GF. Fatty liver accompanies an increase in lactobacillus species in the hind gut of C57BL/6 mice fed a high-fat diet. J Nutr 2013; 143:627-31. [PMID: 23486979 PMCID: PMC3738235 DOI: 10.3945/jn.112.172460] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
High-fat (HF) diets can produce obesity and have been linked to the development of nonalcoholic fatty liver disease and changes in the gut microbiome. To test the hypothesis that HF feeding increases certain predominant hind gut bacteria and development of steatohepatitis, C57BL/6 mice were fed an HF (45% energy) or low-fat (LF) (10% energy) diet for 10 wk. At the end of the feeding period, body weights in the HF group were 34% greater than those in the LF group (P < 0.05). These changes were associated with dramatic increases in lipid droplet number and size, inflammatory cell infiltration, and inducible nitric oxide (NO) synthase protein concentration in the livers of mice fed the HF diet. Consistent with the fatty liver phenotype, plasma leptin and tumor necrosis factor-α concentrations were also elevated in mice fed the HF diet, indicative of chronic inflammation. Eight of 12 pairs of polymerase chain reaction (PCR) primers for bacterial species that typically predominate hind gut microbial ecology generated specific PCR products from the fecal DNA samples. The amount of DNA from Lactobacillus gasseri and/or Lactobacillus taiwanensis in the HF group was 6900-fold greater than that in the LF group. Many of these bacteria are bile acid resistant and are capable of bile acid deconjugation. Because bile acids are regulators of hepatic lipid metabolism, the marked increase of gut L. gasseri and/or L. taiwanensis species bacteria with HF feeding may play a role in development of steatohepatitis in this model.
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Affiliation(s)
- Huawei Zeng
- USDA, Agricultural Research Service, Grand Forks Human Nutrition Research Center, Grand Forks, ND, USA.
| | - Jun Liu
- Metabolic Health Program, Mayo Clinic in Arizona, Scottsdale, AZ; and
| | - Matthew I. Jackson
- USDA, Agricultural Research Service, Grand Forks Human Nutrition Research Center, Grand Forks, ND
| | - Feng-Qi Zhao
- Department of Animal Science, The University of Vermont, Burlington, VT
| | - Lin Yan
- USDA, Agricultural Research Service, Grand Forks Human Nutrition Research Center, Grand Forks, ND
| | - Gerald F. Combs
- USDA, Agricultural Research Service, Grand Forks Human Nutrition Research Center, Grand Forks, ND
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20
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Cousin S, Motreff L, Gulat-Okalla ML, Gouyette C, Spröer C, Schumann P, Begaud E, Bouchier C, Clermont D, Bizet C. Lactobacillus pasteurii sp. nov. and Lactobacillus hominis sp. nov. Int J Syst Evol Microbiol 2013; 63:53-59. [DOI: 10.1099/ijs.0.036665-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Strains 1517T and 61DT were characterized by phenotypic and molecular taxonomic methods. These Gram-positive lactic acid bacteria were homo-fermentative, facultatively anaerobic short rods. They were phylogenetically related to the genus
Lactobacillus
according to 16S rRNA gene sequence analysis, with 99 % similarity between strain 1517T and the type strain of
Lactobacillus gigeriorum
, and 98.6, 98.5 and 98.4 % between strain 61DT and
Lactobacillus gasseri
,
Lactobacillus taiwanensis
and
Lactobacillus johnsonii
, respectively. Multilocus sequence analysis and metabolic analysis of both strains showed variation between the two strains and their close relatives, with variation in the position of the pheS and rpoA genes. The DNA–DNA relatedness of 43.5 % between strain 1517T and
L. gigeriorum
, and 38.6, 29.9 and 39.7 % between strain 61DT and
L. johnsonii
,
L. taiwanensis
and
L. gasseri
, respectively, confirmed their status as novel species. Based on phenotypic and genotypic characteristics, two novel species of
Lactobacillus
are proposed: Lactobacillus pasteurii sp. nov., with 1517T ( = CRBIP 24.76T = DSM 23907T) as the type strain, and Lactobacillus hominis sp. nov., with 61DT ( = CRBIP 24.179T = DSM 23910T) as the type strain.
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Affiliation(s)
- Sylvie Cousin
- Institut Pasteur, Plate-forme Génomique, Dept Génomes et Génétique, F-75015 Paris, France
| | - Laurence Motreff
- Institut Pasteur, CRBIP (Centre de Ressources Biologiques de l’Institut Pasteur), Dept Microbiologie, F-75015 Paris, France
| | - Marie-Laure Gulat-Okalla
- Institut Pasteur, CRBIP (Centre de Ressources Biologiques de l’Institut Pasteur), Dept Microbiologie, F-75015 Paris, France
| | - Catherine Gouyette
- Institut Pasteur, Plate-forme Génomique, Dept Génomes et Génétique, F-75015 Paris, France
| | - Cathrin Spröer
- DSMZ – Deutsche Sammlung von Mikroorganismen und Zellkulturen GmbH (German Collection of Microorganisms and Cell Cultures), D-38124 Braunschweig, Germany
| | - Peter Schumann
- DSMZ – Deutsche Sammlung von Mikroorganismen und Zellkulturen GmbH (German Collection of Microorganisms and Cell Cultures), D-38124 Braunschweig, Germany
| | - Evelyne Begaud
- Institut Pasteur, CRBIP (Centre de Ressources Biologiques de l’Institut Pasteur), Dept Microbiologie, F-75015 Paris, France
| | - Christiane Bouchier
- Institut Pasteur, Plate-forme Génomique, Dept Génomes et Génétique, F-75015 Paris, France
| | - Dominique Clermont
- Institut Pasteur, CRBIP (Centre de Ressources Biologiques de l’Institut Pasteur), Dept Microbiologie, F-75015 Paris, France
| | - Chantal Bizet
- Institut Pasteur, CRBIP (Centre de Ressources Biologiques de l’Institut Pasteur), Dept Microbiologie, F-75015 Paris, France
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21
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Huang CH, Chang MT, Huang MC, Wang LT, Huang L, Lee FL. Discrimination of the Lactobacillus acidophilus group using sequencing, species-specific PCR and SNaPshot mini-sequencing technology based on the recA gene. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2012; 92:2703-2708. [PMID: 22555934 DOI: 10.1002/jsfa.5692] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2012] [Revised: 02/20/2012] [Accepted: 03/06/2012] [Indexed: 05/31/2023]
Abstract
BACKGROUND To clearly identify specific species and subspecies of the Lactobacillus acidophilus group using phenotypic and genotypic (16S rDNA sequence analysis) techniques alone is difficult. The aim of this study was to use the recA gene for species discrimination in the L. acidophilus group, as well as to develop a species-specific primer and single nucleotide polymorphism primer based on the recA gene sequence for species and subspecies identification. RESULTS The average sequence similarity for the recA gene among type strains was 80.0%, and most members of the L. acidophilus group could be clearly distinguished. The species-specific primer was designed according to the recA gene sequencing, which was employed for polymerase chain reaction with the template DNA of Lactobacillus strains. A single 231-bp species-specific band was found only in L. delbrueckii. A SNaPshot mini-sequencing assay using recA as a target gene was also developed. The specificity of the mini-sequencing assay was evaluated using 31 strains of L. delbrueckii species and was able to unambiguously discriminate strains belonging to the subspecies L. delbrueckii subsp. bulgaricus. CONCLUSION The phylogenetic relationships of most strains in the L. acidophilus group can be resolved using recA gene sequencing, and a novel method to identify the species and subspecies of the L. delbrueckii and L. delbrueckii subsp. bulgaricus was developed by species-specific polymerase chain reaction combined with SNaPshot mini-sequencing.
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Affiliation(s)
- Chien-Hsun Huang
- Bioresource Collection and Research Center, Food Industry Research and Development Institute, Hsinchu 30062, Taiwan, ROC.
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Sarmiento-Rubiano LA, Berger B, Moine D, Zúñiga M, Pérez-Martínez G, Yebra MJ. Characterization of a novel Lactobacillus species closely related to Lactobacillus johnsonii using a combination of molecular and comparative genomics methods. BMC Genomics 2010; 11:504. [PMID: 20849602 PMCID: PMC2997000 DOI: 10.1186/1471-2164-11-504] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2010] [Accepted: 09/17/2010] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Comparative genomic hybridization (CGH) constitutes a powerful tool for identification and characterization of bacterial strains. In this study we have applied this technique for the characterization of a number of Lactobacillus strains isolated from the intestinal content of rats fed with a diet supplemented with sorbitol. RESULTS Phylogenetic analysis based on 16S rRNA gene, recA, pheS, pyrG and tuf sequences identified five bacterial strains isolated from the intestinal content of rats as belonging to the recently described Lactobacillus taiwanensis species. DNA-DNA hybridization experiments confirmed that these five strains are distinct but closely related to Lactobacillus johnsonii and Lactobacillus gasseri. A whole genome DNA microarray designed for the probiotic L. johnsonii strain NCC533 was used for CGH analysis of L. johnsonii ATCC 33200T, L. johnsonii BL261, L. gasseri ATCC 33323T and L. taiwanensis BL263. In these experiments, the fluorescence ratio distributions obtained with L. taiwanensis and L. gasseri showed characteristic inter-species profiles. The percentage of conserved L. johnsonii NCC533 genes was about 83% in the L. johnsonii strains comparisons and decreased to 51% and 47% for L. taiwanensis and L. gasseri, respectively. These results confirmed the separate status of L. taiwanensis from L. johnsonii at the level of species, and also that L. taiwanensis is closer to L. johnsonii than L. gasseri is to L. johnsonii. CONCLUSION Conventional taxonomic analyses and microarray-based CGH analysis have been used for the identification and characterization of the newly species L. taiwanensis. The microarray-based CGH technology has been shown as a remarkable tool for the identification and fine discrimination between phylogenetically close species, and additionally provided insight into the adaptation of the strain L. taiwanensis BL263 to its ecological niche.
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