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Amarante DO, Menezes FGRDE, Silva JLSDA, Rocha RS, Feijó RG, Sousa OVDE. Prospection of strains of Bacillus sporogenes in the digestive tract of native crustaceans and characterization of the probiotic potential. AN ACAD BRAS CIENC 2024; 96:e20230924. [PMID: 39319833 DOI: 10.1590/0001-3765202420230924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Accepted: 06/28/2024] [Indexed: 09/26/2024] Open
Abstract
The cultivation of marine shrimp is one of the fastest growing activities in the world. However, the emergence of diseases has resulted in a decrease in production and losses for the sector. Probiotics emerged as an option to the use of antibiotics to control these pathogens. The efficiency of applying this technology depends on the characteristics of the bacterial agents and their bioavailability in the shrimp intestine. The objective is to evaluate the viability and efficiency of bacteria isolated from the digestive tract of healthy crustaceans as probiotic agents in the cultivation of shrimp Litopenaeus vannamei. Eighteen strains of the genus Bacillus belonging to the following species were tested: Bacillus sp., B. cereus, B. thuringiensis, B. circulans, B. megaterium, B. subtilis and B. agaridevorans. Bacterial isolates were subjected to characterization as potential probiotics. The test results were considered satisfactory; thus, the tested strains have potential for use as probiotics in shrimp culture. Treatments that used of the genus Bacillus had reduced growth of the genus Vibrio after infection, both in the intestinal contents and in the intestine. With the results obtained, it can be suggested that further research be carried out on the probiotic potential of Bacillus sp.
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Affiliation(s)
- Deborah O Amarante
- Universidade Federal do Ceará, Departamento de Engenharia de Pesca, Campus do Pici, Av. Mister Hull, s/n, Pici, 60455-760 Fortaleza, CE, Brazil
| | - Francisca Gleire R DE Menezes
- Universidade Federal do Ceará, Departamento de Engenharia de Pesca, Campus do Pici, Av. Mister Hull, s/n, Pici, 60455-760 Fortaleza, CE, Brazil
| | - Jéssica Lucinda S DA Silva
- Universidade Federal do Ceará, Departamento de Engenharia de Pesca, Campus do Pici, Av. Mister Hull, s/n, Pici, 60455-760 Fortaleza, CE, Brazil
| | - Rafael S Rocha
- Instituto de Ciências do Mar, Centro de Diagnóstico de Enfermidades de Organismos Aquáticos, Laboratório de Biologia Molecular, Av. da Abolição, 3207, Meireles, 60165-081 Fortaleza, CE, Brazil
| | - Rubens G Feijó
- Instituto Federal de Educação, Ciência e Tecnologia do Ceará, Av. Desembargador Armando Sales Louzada, s/n, Centro, 65580-000 Acaraú, CE, Brazil
| | - Oscarina V DE Sousa
- Instituto de Ciências do Mar, Laboratório de Microbiologia Ambiental e do Pescado, Av. da Abolição, 3207, Meireles, 60165-081 Fortaleza, CE, Brazil
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Liang J, Li C, Chen Z, Guo F, Dou J, Wang T, Xu ZS. Progress of research and application of Heyndrickxia coagulans ( Bacillus coagulans) as probiotic bacteria. Front Cell Infect Microbiol 2024; 14:1415790. [PMID: 38863834 PMCID: PMC11165213 DOI: 10.3389/fcimb.2024.1415790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Accepted: 05/16/2024] [Indexed: 06/13/2024] Open
Abstract
Probiotics are defined as living or dead bacteria and their byproducts that maintain the balance of the intestinal microbiome. They are non-toxic, non-pathogenic, and do not release any toxins either within or outside the body. Adequate consumption of probiotics can enhance metabolite production, increase immunity, maintain a balanced intestinal flora, and stimulate growth. Probiotics do not have negative antibiotic effects and help maintain the natural flora in animals in a balanced state or prevent dysbacteriosis. Heyndrickxia coagulans (H. coagulans) is a novel probiotic species that is gradually being used for the improvement of human health. Compared to commonly used probiotic lactic acid bacteria, H. coagulans can produce spores, which provide the species with high resistance to adverse conditions. Even though they are transient residents of the gut, beneficial bacteria can have a significant impact on the microbiota because they can outnumber harmful germs, and vice versa. This article discusses the probiotic mechanisms of H. coagulans and outlines the requirements for a substance to be classified as a probiotic. It also addresses how to assess strains that have recently been discovered to possess probiotic properties.
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Affiliation(s)
- Jie Liang
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Science, Jinan, China
- School of Bioengineering, Qilu University of Technology, Shandong Academy of Science, Jinan, China
| | - Chunhai Li
- Qilu Hospital, Shandong University, Jinan, Shandong, China
| | - Zouquan Chen
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Science, Jinan, China
- School of Bioengineering, Qilu University of Technology, Shandong Academy of Science, Jinan, China
| | - Fangyu Guo
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Science, Jinan, China
- School of Bioengineering, Qilu University of Technology, Shandong Academy of Science, Jinan, China
| | - Jiaxin Dou
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Science, Jinan, China
- School of Bioengineering, Qilu University of Technology, Shandong Academy of Science, Jinan, China
| | - Ting Wang
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Science, Jinan, China
- School of Bioengineering, Qilu University of Technology, Shandong Academy of Science, Jinan, China
| | - Zhen Shang Xu
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Science, Jinan, China
- School of Bioengineering, Qilu University of Technology, Shandong Academy of Science, Jinan, China
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Li XL, Lian JM, Chen XL, Fan QY, Yan Y, Cui FJ. A Novel Bacillus amyloliquefaciens Specifically Improving the Solubility and Antioxidant Activities of Edible Bird's Nest. Curr Microbiol 2024; 81:164. [PMID: 38710854 DOI: 10.1007/s00284-024-03675-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 03/20/2024] [Indexed: 05/08/2024]
Abstract
Edible bird's nest (EBN), a most highly priced and valuable foodstuff, contains high percentage of proteins and carbohydrates. However, proteins adhering to these carbohydrates make the EBN hard and tough, which need to be boiled as the bird's nest soup to make the Chinese cuisine. To overcome the hard and tough texture of EBN and improve the digestion degrees, the present study screened and identified a probiotic strain Bacillus amyloliquefaciens YZW02 from 5-year stored EBN sample completely solubilizing EBN for the first time. The 24-h B. amyloliquefaciens fermented EBN contained 20.30-21.48 mg/mL of the soluble protein contents with a recovery rate of 98-100%, DPPH radical scavenging rate of 84.76% and ABTS radical scavenging capacity of 41.05%. The mixed fermentation of B. amyloliquefaciens YZW02 and Bacillus natto BN1 were further applied to improve the low-MW peptide percentages and antioxidant activities. The mixed-fermentation of B. natto BN1 with 4-h cultured B. amyloliquefaciens YZW02 had the lowest percentage (82.23%) of >12-kDa proteins/peptides and highest percentages of 3-12 kDa, 1-3 kDa and 0.1-1 kDa peptides of 8.6% ± 0.08, 7.57% ± 0.09, 1.77% ± 0.05 and 0.73% ± 0.05, with the highest DPPH, ABTS and •OH scavenging capacity of 90.23%, 46.45% and 49.12%, respectively. These findings would provide an efficient strategy for improving the solubility and antioxidant activities of EBNs.
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Affiliation(s)
- Xin-Lin Li
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, People's Republic of China
| | - Jian-Mei Lian
- Xiamen Yan Palace Seelong Food Co, Ltd, Bird's Nest Research Institute, Xiamen, 361100, Fujian, China
| | - Xiao-Ling Chen
- Xiamen Yan Palace Seelong Food Co, Ltd, Bird's Nest Research Institute, Xiamen, 361100, Fujian, China
| | - Qun-Yan Fan
- Xiamen Yan Palace Seelong Food Co, Ltd, Bird's Nest Research Institute, Xiamen, 361100, Fujian, China.
| | - Ying Yan
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, People's Republic of China
| | - Feng-Jie Cui
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, People's Republic of China.
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Zhu M, Zhu J, Fang S, Zhao B. Complete genome sequence of Heyndrickxia ( Bacillus) coagulans BC99 isolated from a fecal sample of a healthy infant. Microbiol Resour Announc 2024; 13:e0044923. [PMID: 38095439 DOI: 10.1128/mra.00449-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 11/18/2023] [Indexed: 01/18/2024] Open
Abstract
This study reports the complete genome sequence of Heyndrickxia (Bacillus) coagulans BC99, a promising human probiotic strain isolated from the fecal sample of a healthy infant in Hailaer Inner Mongolia. The genome sequence of BC99 contains a 3,655,496-bp circular chromosome with a GC content of 46.23%. Genome annotation predicted 3,273 protein-coding genes.
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Affiliation(s)
- Mingming Zhu
- Wuhan Wecare Probiotic Research Institute , Wuhan, China
- Wecare Probiotics Co., Ltd. , Suzhou, China
| | - Jianguo Zhu
- Wuhan Wecare Probiotic Research Institute , Wuhan, China
- Wecare Probiotics Co., Ltd. , Suzhou, China
| | - Shuguang Fang
- Wuhan Wecare Probiotic Research Institute , Wuhan, China
- Wecare Probiotics Co., Ltd. , Suzhou, China
| | - Bin Zhao
- Wuhan Wecare Probiotic Research Institute , Wuhan, China
- Wecare Probiotics Co., Ltd. , Suzhou, China
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University , Wuhan, China
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Du K, Zheng C, Kuang Z, Sun Y, Wang Y, Li S, Meng D. Gastroprotective effect of eupatilin, a polymethoxyflavone from Artemisia argyi H.Lév. & Vaniot, in ethanol-induced gastric mucosal injury via NF-κB signaling pathway. JOURNAL OF ETHNOPHARMACOLOGY 2024; 318:116986. [PMID: 37536645 DOI: 10.1016/j.jep.2023.116986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 07/28/2023] [Accepted: 07/30/2023] [Indexed: 08/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Artemisia argyi H.Lév. & Vaniot (AA) has been extensively utilized as an important medicine and food homology in China, Japan, Korea, and eastern parts of Russia, owing to its pharmacological effects, which include anti-inflammatory, antibacterial, antitussive, and antiallergic properties. Despite the extract of AA can significantly alleviate gastric mucosal injury, its precise material basis for effectiveness is not yet clear. As one of the polymethoxy flavonoids with high content in AA, the gastroprotective activity and molecular mechanism of eupatilin (EUP) require further investigation. AIM OF THE STUDY This study aims to investigate the gastroprotective effects and possible mechanisms of EUP by using an ethanol-induced gastric mucosal injury model in rats. MATERIALS AND METHODS EUP was isolated from 95% ethanol extract of AA using a systematic phytochemical method. The gastroprotective activity of EUP was evaluated using a male SD rat model with ethanol-induced gastric mucosa injury. Histopathology evaluation of gastric tissues was performed using hematoxylin and eosin (H&E) staining. The levels of cytokines in the plasma and tissues were tested using the ELISA kits, while western blot analysis was employed to assess the expressions of COX-2, iNOS, and NF-κB pathway proteins. RESULTS A sufficient amount of EUP was obtained from AA through chromatographic methods and identified by NMR experiment. In vivo, experimental results proved that EUP could significantly alleviate pathological features, increased SOD, GSH, and IL-10 levels, and decreased the contents of MDA, TNF-α, IL-1β, and IL-6. Further in vitro and in vivo Western blot experimental results showed that EUP significantly down-regulates the expressions of the NF-κB signal pathway to relieve inflammatory responses. CONCLUSION This study demonstrated that EUP could exert gastroprotective effects by inhibiting inflammation, enhancing gastric mucosal defense, and ameliorating oxidative stress, which is beneficial for providing scientific data for the development of gastric protection.
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Affiliation(s)
- Kaicheng Du
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, 110016, PR China
| | - Changwei Zheng
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, 110016, PR China
| | - Zhulingzhi Kuang
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, 110016, PR China
| | - Yiwei Sun
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, 110016, PR China
| | - Yumeng Wang
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, 110016, PR China
| | - Shuang Li
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, 110016, PR China
| | - Dali Meng
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, 110016, PR China.
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Lv L, Xiong F, Liu Y, Pei S, He S, Li S, Yang H. The rumen-derived Lact. mucosae LLK-XR1 exhibited greater free gossypol degradation capacity during solid-state fermentation of cottonseed meal and probiotic potential. BMC Microbiol 2024; 24:15. [PMID: 38183000 PMCID: PMC10768434 DOI: 10.1186/s12866-023-03156-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Accepted: 12/12/2023] [Indexed: 01/07/2024] Open
Abstract
BACKGROUND This study aimed to isolate the rumen-derived bacteria with the ability to degrade free gossypol (FG), and to evaluate the probiotic potential in vitro for ensuring safe utilization. METHODS The strains were anaerobically isolated from fresh rumen fluid of sheep with long-term fed cottonseed meal (CSM) with the screening agar medium containing gossypol as the sole carbon source. Afterwards, the isolated strain incubated with CSM was subjected to the determination of the FG degradation and in vitro evaluation of probiotic characteristics. RESULTS The target strain labeled Lact. mucosae LLK-XR1 [Accession number: OQ652016.1] was obtained, and its growth on MRS Liquid medium exhibited degradation efficiency of FG up to 69.5% which was significantly greater than its growth on Man-Rogosa-Sharpe medium with glucose free for 24 h (p < 0.01). Meanwhile, LLK-XR1 showed 40.652% degradation rate of FG for unautoclaved, non-pulverized, and no additional nutrients supplementation CSM. Furthermore, LLK-XR1 presented good survivability at pH 3.0 (above 88.6%), and 0.3% bile (78.5%). LLK-XR1 showed sensitivity to broad-spectrum antibiotics except Sulfamethoxazole, Ciprofloxacin and Gentamycin and significantly inhibited E. coli CICC 10,899, Staph. aureus CICC 21,600, and Salmonella. Typhimurium CICC 21,483. LLK-XR1 demonstrated good cell surface hydrophobicity and auto-aggregation ability. CONCLUSIONS Taken together, this study for the first time noted that rumen-originated Lact. mucosae LLK-XR1 with probiotic properties exhibited substantial FG degradation capacity when it was applied to the solid-state fermentation of CSM.
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Affiliation(s)
- Liangkang Lv
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Fengliang Xiong
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Yingyi Liu
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Shiteng Pei
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Shanshan He
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Shengli Li
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Hongjian Yang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China.
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Chen Z, Tang Z, Li W, Deng X, Yu L, Yang J, Liu J, Cheng Y, Huang W, Guo X, Shan J, Zhou D, Zeng W, Bai Y, Fan H. Weizmannia coagulans BCF-01: a novel gastrogenic probiotic for Helicobacter pylori infection control. Gut Microbes 2024; 16:2313770. [PMID: 38334087 PMCID: PMC10860349 DOI: 10.1080/19490976.2024.2313770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Accepted: 01/29/2024] [Indexed: 02/10/2024] Open
Abstract
The widespread prevalence of Helicobacter pylori infection, particularly in China, contributes to the development of gastrointestinal diseases. Antibiotics have limitations, including adverse reactions and increased antibiotic resistance. Therefore, identification of novel gastrogenic probiotics capable of surviving the acidic gastric environment and effectively combating H. pylori infection has potential in restoring gastric microbiota homeostasis. Five novel strains of human gastrogenic Weizmannia coagulans (BCF-01-05) were isolated from healthy gastric mucosa and characterized using 16S rDNA identification. Acid resistance, H. pylori inhibition, and adherence to gastric epithelial cells were evaluated in in-vitro experiments and the molecular mechanism explored in in-vivo experiments. Among the gastric-derived W. coagulans strains, BCF-01 exhibited the strongest adhesion and H. pylori inhibition, warranting further in-vivo safety evaluation. Through 16S rRNA sequencing of a mouse model, BCF-01 was determined to significantly restore H. pylori-associated gastric dysbiosis and increase the abundance of potential probiotic bacteria. Furthermore, BCF-01 enhanced mucosal tight junction protein expression and inhibited the TLR4-NFκB-pyroptosis signaling pathway in macrophages, as demonstrated by qRT-PCR and western blotting.These findings highlight the potential of BCF-01 in the prevention and control of H. pylori infection. Specifically, treatment with BCF-01 effectively restored gastric microecology and improved H. pylori-mediated mucosal barrier destruction while reducing inflammation through inhibition of the TLR4-NFκB-pyroptosis signaling pathway in macrophages. BCF-01 is a promising alternative to traditional triple therapy for H. pylori infections, offering minimal side effects with high suitability for high-risk individuals.
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Affiliation(s)
- Zhenhui Chen
- Department of Microbiology, Guangdong Provincial Key Laboratory of Tropical, Disease Research, School of Public Health, Southern Medical University, Guangzhou, China
| | - Ziyu Tang
- Department of Microbiology, Guangdong Provincial Key Laboratory of Tropical, Disease Research, School of Public Health, Southern Medical University, Guangzhou, China
| | - Wendan Li
- Department of Microbiology, Guangdong Provincial Key Laboratory of Tropical, Disease Research, School of Public Health, Southern Medical University, Guangzhou, China
| | - Xiaoshi Deng
- Department of Microbiology, Guangdong Provincial Key Laboratory of Tropical, Disease Research, School of Public Health, Southern Medical University, Guangzhou, China
| | - Lu Yu
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jixiang Yang
- Department of Microbiology, Guangdong Provincial Key Laboratory of Tropical, Disease Research, School of Public Health, Southern Medical University, Guangzhou, China
| | - Jiaxin Liu
- Department of Microbiology, Guangdong Provincial Key Laboratory of Tropical, Disease Research, School of Public Health, Southern Medical University, Guangzhou, China
| | - Yunshui Cheng
- Department of Traditional Chinese Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Wanwen Huang
- Department of Microbiology, Guangdong Provincial Key Laboratory of Tropical, Disease Research, School of Public Health, Southern Medical University, Guangzhou, China
| | - Xiaotong Guo
- Department of Microbiology, Guangdong Provincial Key Laboratory of Tropical, Disease Research, School of Public Health, Southern Medical University, Guangzhou, China
| | - Jiamin Shan
- Department of Microbiology, Guangdong Provincial Key Laboratory of Tropical, Disease Research, School of Public Health, Southern Medical University, Guangzhou, China
| | - Daixuan Zhou
- Guangdong Provincial Key Laboratory of Gastroenterology, Inst. of Gastroenterology of Guangdong Province, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Weisen Zeng
- Department of Cell Biology, School of Basic Medicine, Southern Medical University, Guangzhou, China
| | - Yang Bai
- Guangdong Provincial Key Laboratory of Gastroenterology, Inst. of Gastroenterology of Guangdong Province, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Hongying Fan
- Department of Microbiology, Guangdong Provincial Key Laboratory of Tropical, Disease Research, School of Public Health, Southern Medical University, Guangzhou, China
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Angulo M, Guerra K, Arevalo P, Trujillo E, Monreal-Escalante E, Angulo C. Probiotic Potential of Bacillus sp. 62A Isolated from a Marine Extreme Environment. Probiotics Antimicrob Proteins 2023:10.1007/s12602-023-10182-3. [PMID: 37889453 DOI: 10.1007/s12602-023-10182-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/16/2023] [Indexed: 10/28/2023]
Abstract
Antimicrobial resistance is an important health concern globally, and probiotics are considered an alternative to minimize it. The present study examined the in vitro probiotic characteristics and in vivo immunomodulatory potential of Bacillus sp. 62A - an extremophile bacterium. Bacillus sp. 62A was evaluated in vitro for its cytotoxicity, hemolytic activity, antibiotic susceptibility, and resistance to gastrointestinal conditions (bile salts, low pH, and intestinal adherence). Additionally, the immunomodulatory effect of Bacillus sp. 62A was studied in mice. The animals were supplemented daily with phosphate-buffered saline (control) and Bacillus sp. 62A at 1 × 108 colony forming units (CFU). Samples were taken on days 5 and 10. Isolated splenocytes were challenged with Escherichia coli for immunological analyses and immune-related gene expression. Serum and feces were collected for IgA and IgG determination. Bacillus sp. 62A did not show cytotoxicity, hemolytic activity, or resistance to antibiotics. Furthermore, the bacterium has autoaggregation and intestinal adhesion capacities and grows in the presence of bile salts and low pH. Bacillus supplementation in mice improved respiratory burst activity, nitric oxide production, and IL-1β and IL-6 gene expressions, mainly at 10 days. After E. coli challenge, Bacillus supplementation in mice induced an anti-inflammatory response through a decrease in immunological parameters and an increase in IL-10 gene expression. Moreover, serum IgA and IgG and fecal IgG augmented in supplemented mice. In conclusion, Bacillus sp. 62A has biosafe and immunomodulatory probiotic potential.
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Affiliation(s)
- Miriam Angulo
- Immunology & Vaccinology Group, Centro de Investigaciones Biológicas del Noroeste (CIBNOR), Av. Instituto Politécnico Nacional 195, Playa Palo de Santa Rita Sur, C.S. 23096, La Paz, Mexico
| | - Kevyn Guerra
- Immunology & Vaccinology Group, Centro de Investigaciones Biológicas del Noroeste (CIBNOR), Av. Instituto Politécnico Nacional 195, Playa Palo de Santa Rita Sur, C.S. 23096, La Paz, Mexico
- Tecnológico Nacional de México / Instituto Tecnológico de La Paz, Boulevard Forjadores 4720, 8 de Octubre Segunda sección, C.P. 23080, La Paz, Mexico
| | - Paola Arevalo
- Immunology & Vaccinology Group, Centro de Investigaciones Biológicas del Noroeste (CIBNOR), Av. Instituto Politécnico Nacional 195, Playa Palo de Santa Rita Sur, C.S. 23096, La Paz, Mexico
| | - Edgar Trujillo
- Immunology & Vaccinology Group, Centro de Investigaciones Biológicas del Noroeste (CIBNOR), Av. Instituto Politécnico Nacional 195, Playa Palo de Santa Rita Sur, C.S. 23096, La Paz, Mexico
| | - Elizabeth Monreal-Escalante
- Immunology & Vaccinology Group, Centro de Investigaciones Biológicas del Noroeste (CIBNOR), Av. Instituto Politécnico Nacional 195, Playa Palo de Santa Rita Sur, C.S. 23096, La Paz, Mexico
- Investigadora Por México-CONACYT, Centro de Investigaciones Biológicas del Noroeste (CIBNOR), Av. Instituto Politécnico Nacional 195, Playa Palo de Santa Rita Sur, C.P. 23096, La Paz, Mexico
| | - Carlos Angulo
- Immunology & Vaccinology Group, Centro de Investigaciones Biológicas del Noroeste (CIBNOR), Av. Instituto Politécnico Nacional 195, Playa Palo de Santa Rita Sur, C.S. 23096, La Paz, Mexico.
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Gao Y, Yu T, Wu Y, Huang X, Teng J, Zhao N, Zheng X, Yan F. Bacillus coagulans (Weizmannia coagulans) XY2 attenuates Cu-induced oxidative stress via DAF-16/FoxO and SKN-1/Nrf2 pathways and gut microbiota regulation. JOURNAL OF HAZARDOUS MATERIALS 2023; 457:131741. [PMID: 37270965 DOI: 10.1016/j.jhazmat.2023.131741] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 05/18/2023] [Accepted: 05/28/2023] [Indexed: 06/06/2023]
Abstract
Copper (Cu) pollution has become a serious environmental problem especially in recent decades. In this study, the mechanisms of Bacillus coagulans (Weizmannia coagulans) XY2 against Cu-induced oxidative stress were explored through a dual model. In mice, Cu disturbed microbial community structure, revealing an increased level of Enterorhabdus abundance and decreased levels of Intestinimonas, Faecalibaculu, Ruminococcaceae and Coriobacteriaceae_UCG-002 abundance. Meanwhile, B. coagulans (W. coagulans) XY2 intervention reversed this trend along with alleviated Cu-induced metabolic disturbances by increasing levels of hypotaurine and L-glutamate and declining levels of phosphatidylcholine and phosphatidylethanolamine. In Caenorhabditis elegans, nuclear translocation of DAF-16 and SKN-1 was inhibited by Cu, which in turn suppressed antioxidant-related enzymes activities. XY2 mitigated biotoxicity associated with oxidative damage caused by Cu exposure via regulating DAF-16/FoxO and SKN-1/Nrf2 pathways and intestinal flora to eliminate excess ROS. Our study provides a theoretical basis formulating future strategy of probiotics against heavy metal contamination.
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Affiliation(s)
- Yufang Gao
- Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Ting Yu
- Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Yalan Wu
- Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Xuedi Huang
- Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Jialuo Teng
- Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Nan Zhao
- Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Xiaodong Zheng
- Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Fujie Yan
- Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China.
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Gao Y, Yu T, Ai F, Ji C, Wu Y, Huang X, Zheng X, Yan F. Bacillus coagulans XY2 ameliorates copper-induced toxicity by bioadsorption, gut microbiota and lipid metabolism regulation. JOURNAL OF HAZARDOUS MATERIALS 2023; 445:130585. [PMID: 37055990 DOI: 10.1016/j.jhazmat.2022.130585] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 12/07/2022] [Accepted: 12/07/2022] [Indexed: 06/19/2023]
Abstract
Excessive copper pollutes the environment and endangers human health, attracting plenty of global attention. In this study, a novel strain named Bacillus coagulans XY2 was discovered to have a great copper tolerance and adsorption capacity. B. coagulans XY2 might maintain copper homeostasis through multisystem synergies of copper resistance, sulfur metabolism, Fe-S cluster assembly, and siderophore transport. In mice, by promoting the expression of SREBF-1 and SREBF-2 and their downstream genes, B. coagulans XY2 significantly inhibited the copper-induced decrease in weight growth rate, ameliorated dyslipidemia, restored total cholesterol and triglyceride contents both in serum and liver. Furthermore, B. coagulans XY2 recovered the diversity of gut microbiota and suppressed the copper-induced reduction in the ratio of Firmicutes to Bacteroidota. Serum metabolomics analysis showed that the alleviating effect of B. coagulans XY2 on copper toxicity was mainly related to lipid metabolism. For the first time, we demonstrated mechanisms of copper toxicity mitigation by B. coagulans XY2, which was related to self-adsorption, host copper excretion promotion, and lipid metabolism regulation. Moreover, working model of B. coagulans XY2 on copper homeostasis was predicted by whole-genome analysis. Our study provides a new solution for harmfulness caused by copper both in human health and the environment.
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Affiliation(s)
- Yufang Gao
- Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Ting Yu
- Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Fang Ai
- Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Chen Ji
- Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Yalan Wu
- Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Xuedi Huang
- Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Xiaodong Zheng
- Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Fujie Yan
- Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China.
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