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Fang X, Liu H, Du Y, Jiang L, Gao F, Wang Z, Chi Z, Shi B, Zhao X. Bacillus siamensis Targeted Screening from Highly Colitis-Resistant Pigs Can Alleviate Ulcerative Colitis in Mice. RESEARCH (WASHINGTON, D.C.) 2024; 7:0415. [PMID: 39015206 PMCID: PMC11249912 DOI: 10.34133/research.0415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Accepted: 05/28/2024] [Indexed: 07/18/2024]
Abstract
Ulcerative colitis (UC) is often accompanied by intestinal inflammation and disruption of intestinal epithelial structures, which are closely associated with changes in the intestinal microbiota. We previously revealed that Min pigs, a native Chinese breed, are more resistant to dextran sulfate sodium (DSS)-induced colitis than commercial Yorkshire pigs. Characterizing the microbiota in Min pigs would allow identification of the core microbes that confer colitis resistance. By analyzing the microbiota linked to the disease course in Min and Yorkshire pigs, we observed that Bacillus spp. were enriched in Min pigs and positively correlated with pathogen resistance. Using targeted screening, we identified and validated Bacillus siamensis MZ16 from Min pigs as a bacterial species with biofilm formation ability, superior salt and pH tolerance, and antimicrobial characteristics. Subsequently, we administered B. siamensis MZ16 to conventional or microbiota-deficient BALB/c mice with DSS-induced colitis to assess its efficacy in alleviating colitis. B. siamensis MZ16 partially counteracted DSS-induced colitis in conventional mice, but it did not mitigate DSS-induced colitis in microbiota-deficient mice. Further analysis revealed that B. siamensis MZ16 administration improved intestinal ecology and integrity and immunological barrier function in mice. Compared to the DSS-treated mice, mice preadministered B. siamensis MZ16 exhibited improved relative abundance of potentially beneficial microbes (Lactobacillus, Bacillus, Christensenellaceae R7, Ruminococcus, Clostridium, and Eubacterium), reduced relative abundance of pathogenic microbes (Escherichia-Shigella), and maintained colonic OCLN and ZO-1 levels and IgA and SIgA levels. Furthermore, B. siamensis MZ16 reduced proinflammatory cytokine levels by reversing NF-κB and MAPK pathway activation in the DSS group. Overall, B. siamensis MZ16 from Min pigs had beneficial effects on a colitis mouse model by enhancing intestinal barrier functions and reducing inflammation in a gut microbiota-dependent manner.
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Affiliation(s)
- Xiuyu Fang
- College of Animal Science and Technology,
Northeast Agricultural University, Harbin 150030, People’s Republic of China
| | - Haiyang Liu
- College of Animal Science and Technology,
Northeast Agricultural University, Harbin 150030, People’s Republic of China
| | - Yongqing Du
- College of Animal Science and Technology,
Northeast Agricultural University, Harbin 150030, People’s Republic of China
| | - Lin Jiang
- College of Animal Science and Technology,
Northeast Agricultural University, Harbin 150030, People’s Republic of China
| | - Feng Gao
- College of Animal Science and Technology,
Northeast Agricultural University, Harbin 150030, People’s Republic of China
| | - Zhengyi Wang
- College of Animal Science and Technology,
Northeast Agricultural University, Harbin 150030, People’s Republic of China
| | - Zihan Chi
- College of Animal Science and Technology,
Northeast Agricultural University, Harbin 150030, People’s Republic of China
| | - Baoming Shi
- College of Animal Science and Technology,
Northeast Agricultural University, Harbin 150030, People’s Republic of China
| | - Xuan Zhao
- College of Animal Science and Technology,
Southwest University, Chongqing 400715, People’s Republic of China
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2
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Maasch JRMA, Torres MDT, Melo MCR, de la Fuente-Nunez C. Molecular de-extinction of ancient antimicrobial peptides enabled by machine learning. Cell Host Microbe 2023; 31:1260-1274.e6. [PMID: 37516110 DOI: 10.1016/j.chom.2023.07.001] [Citation(s) in RCA: 37] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 05/12/2023] [Accepted: 07/06/2023] [Indexed: 07/31/2023]
Abstract
Molecular de-extinction could offer avenues for drug discovery by reintroducing bioactive molecules that are no longer encoded by extant organisms. To prospect for antimicrobial peptides encrypted within extinct and extant human proteins, we introduce the panCleave random forest model for proteome-wide cleavage site prediction. Our model outperformed multiple protease-specific cleavage site classifiers for three modern human caspases, despite its pan-protease design. Antimicrobial activity was observed in vitro for modern and archaic protein fragments identified with panCleave. Lead peptides showed resistance to proteolysis and exhibited variable membrane permeabilization. Additionally, representative modern and archaic protein fragments showed anti-infective efficacy against A. baumannii in both a skin abscess infection model and a preclinical murine thigh infection model. These results suggest that machine-learning-based encrypted peptide prospection can identify stable, nontoxic peptide antibiotics. Moreover, we establish molecular de-extinction through paleoproteome mining as a framework for antibacterial drug discovery.
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Affiliation(s)
- Jacqueline R M A Maasch
- Department of Computer and Information Science, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA 19104, USA; Machine Biology Group, Departments of Psychiatry and Microbiology, Institute for Biomedical Informatics, Institute for Translational Medicine and Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Department of Bioengineering, Department of Chemical and Biomolecular Engineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA 19104, USA; Penn Institute for Computational Science, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Marcelo D T Torres
- Machine Biology Group, Departments of Psychiatry and Microbiology, Institute for Biomedical Informatics, Institute for Translational Medicine and Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Department of Bioengineering, Department of Chemical and Biomolecular Engineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA 19104, USA; Penn Institute for Computational Science, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Marcelo C R Melo
- Machine Biology Group, Departments of Psychiatry and Microbiology, Institute for Biomedical Informatics, Institute for Translational Medicine and Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Department of Bioengineering, Department of Chemical and Biomolecular Engineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA 19104, USA; Penn Institute for Computational Science, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Cesar de la Fuente-Nunez
- Machine Biology Group, Departments of Psychiatry and Microbiology, Institute for Biomedical Informatics, Institute for Translational Medicine and Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Department of Bioengineering, Department of Chemical and Biomolecular Engineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA 19104, USA; Penn Institute for Computational Science, University of Pennsylvania, Philadelphia, PA 19104, USA.
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Efficacy of natural antimicrobial peptides versus peptidomimetic analogues: a systematic review. Future Med Chem 2022; 14:1899-1921. [PMID: 36421051 DOI: 10.4155/fmc-2022-0160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Aims: This systematic review was carried out to determine whether synthetic peptidomimetics exhibit significant advantages over antimicrobial peptides in terms of in vitro potency. Structural features - molecular weight, charge and length - were examined for correlations with activity. Methods: Original research articles reporting minimum inhibitory concentration values against Escherichia coli, indexed until 31 December 2020, were searched in PubMed/ScienceDirect/Google Scholar and evaluated using mixed-effects models. Results: In vitro antimicrobial activity of peptidomimetics resembled that of antimicrobial peptides. Net charge significantly affected minimum inhibitory concentration values (p < 0.001) with a trend of 4.6% decrease for increments in charge by +1. Conclusion: AMPs and antibacterial peptidomimetics exhibit similar potencies, providing an opportunity to exploit the advantageous stability and bioavailability typically associated with peptidomimetics.
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Chen YN, Li HL, Huang JJ, Li MJ, Liao T, Zu XY. Antimicrobial activities and mechanism of sturgeon spermary protein extracts against Escherichia coli. Front Nutr 2022; 9:1021338. [PMID: 36263303 PMCID: PMC9575452 DOI: 10.3389/fnut.2022.1021338] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 08/30/2022] [Indexed: 11/17/2022] Open
Abstract
This study aimed to evaluate the antimicrobial activities and mechanism of sturgeon spermary protein extracts (SSPE) against Escherichia coli. The minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) were determined. Cell structural change was analyzed using scanning electron microscopy-energy dispersive X-ray spectrometry and transmission electron microscope. Moreover, pH, zeta potential, membrane potential, intracellular ATP concentrations and the interaction of SSPE with genomic DNA were analyzed. Results showed that molecular weight of SSPE is 13.4 kDa, the content of basic amino acids is the highest, in which arginine accounts for 73.2%. The MIC and MBC of SSPE for E. coli were 0.05 and 5 mg/mL, respectively. After SSPE treatment, cell membrane permeability changes, zeta potential decrease and genomic DNA lysis occurred in E. coli, which indicated it exerted bacteriostatic effects either independently or simultaneously by destroying the cell membrane and genomic DNA. These findings indicated that SSPE has potential to be a natural antiseptic.
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Affiliation(s)
- Ya-Nan Chen
- Institute of Agricultural Products Processing and Nuclear Agricultural Technology, Hubei Academy of Agricultural Sciences, Wuhan, China,School of Biological Engineering and Food, Hubei University of Technology, Wuhan, China
| | - Hai-Lan Li
- Institute of Agricultural Products Processing and Nuclear Agricultural Technology, Hubei Academy of Agricultural Sciences, Wuhan, China,Key Laboratory of Agricultural Products Cold Chain Logistics, Ministry of Agriculture and Rural Affairs, Wuhan, China
| | - Jia-Jun Huang
- School of Biological Engineering and Food, Hubei University of Technology, Wuhan, China
| | - Mei-Jin Li
- School of Biological Engineering and Food, Hubei University of Technology, Wuhan, China
| | - Tao Liao
- Institute of Agricultural Products Processing and Nuclear Agricultural Technology, Hubei Academy of Agricultural Sciences, Wuhan, China
| | - Xiao-Yan Zu
- Institute of Agricultural Products Processing and Nuclear Agricultural Technology, Hubei Academy of Agricultural Sciences, Wuhan, China,Key Laboratory of Agricultural Products Cold Chain Logistics, Ministry of Agriculture and Rural Affairs, Wuhan, China,*Correspondence: Xiao-Yan Zu
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5
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Li G, Yuan X, Chen H, Li B, Shao C, Zhu Y, Lai Z, Shan A. Optimization of Antibacterial Activity in Tibetan Swine α-Helix Peptide TP by Site-Directed Mutagenesis. Front Microbiol 2022; 13:864374. [PMID: 35859740 PMCID: PMC9289672 DOI: 10.3389/fmicb.2022.864374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 05/12/2022] [Indexed: 11/13/2022] Open
Abstract
Antimicrobial peptides (AMPs) have attracted extensive attention because of their broad-spectrum antibacterial activity and low level of induced bacterial resistance. However, the development of some natural AMPs does not consider the perfect balance of structural characteristics, resulting in some empirical and controversial practices still existing. To further explore and complete the relationship between parameters and function of α-helix peptide, in this study, the natural antimicrobial peptide TP secreted from Bacillus strain of Tibetan pigs was selected as a template to investigate the effect of systematic mutations in the hydrogen bond formation site of the α-helical antimicrobial peptide on the activity and cell selectivity of the antimicrobial peptide. The target peptide TP(i+4) 1&2&5 with modification of two pairs of positively charged amino acids and a pair of hydrophobic amino acids showed excellent antibacterial ability and the best selectivity index (SI = 64) in vitro. At the same time, TP(i+4) 1&2&5 remained active in the presence of physiological salts and serum. The results of fluorescence, flow cytometry, and electron microscopy showed that the optimized sequences showed good antibacterial activity by membrane infiltration and membrane destruction. The potential of TP(i+4) 1&2&5 in vivo was tested in a mouse peritonitis model. Organ bacterial loads in the liver, kidney, spleen, and lungs of mice treated with TP(i+4) 1&2&5 were significantly lower compared to the infected group (p < 0.05). Overall, these findings contribute to the design and optimization of antimicrobial peptides with high activity and low toxicity and may accelerate the clinical application of antimicrobial peptides.
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Du H, Yao W, Kulyar MFEA, Ding Y, Zhu H, Pan H, Li K, Bhutta ZA, Liu S, Li J. Effects of Bacillus amyloliquefaciens TL106 Isolated from Tibetan Pigs on Probiotic Potential and Intestinal Microbes in Weaned Piglets. Microbiol Spectr 2022; 10:e0120521. [PMID: 35080439 PMCID: PMC8791190 DOI: 10.1128/spectrum.01205-21] [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: 09/11/2021] [Accepted: 12/16/2021] [Indexed: 11/20/2022] Open
Abstract
Bacillus amyloliquefaciens is a nonpathogenic microorganism whose highly active amylase is widely isolated from soil and plants. TL106 is an isolate of Bacillus amyloliquefaciens isolated from cold- and disease-resistant Tibetan pigs in Linzhi, Tibet. Here, we report that TL106 not only could survive in acidic environments, high bile salt concentrations, and high-temperature conditions but also was resistant to antibiotics. It significantly improved the growth performance of weaned piglets, especially in the prevention of diarrhea. The crude fiber and crude ash digestibility in weaned piglets after TL106 administration was considerably higher than that in other groups. The results of 16S rRNA sequencing conveyed that TL106 stabilized gut microbiota that was disturbed by the weaning process with an increased level of Lachnospiraceae, Peptococcaceae.rc4_4, Erysipelotrichaceae.L7A_E11, and Mollicutes.RF39. Hence, this study proved that Bacillus amyloliquefaciens TL106 might be a candidate for antibiotics in Duroc×Landrace×Yorkshire weaned piglets. IMPORTANCE Antibiotics are often used to promote animal growth and prevent diarrhea in weanling piglets. Nevertheless, intestinal pathogenic bacterial resistance and drug residues caused by antibiotic overuse are worthy of concern and demand an urgent solution. Bacillus amyloliquefaciens TL106 has been isolated from cold- and disease-resistant Tibetan pigs in Linzhi, Tibet. It significantly improved the growth performance, decreased diarrhea, increased the absorption of crude substances, and regulated the gut flora homeostasis in Duroc×Landrace×Yorkshire weaned piglets. As an antibiotic candidate, TL106 perfectly displayed its probiotic potential and pollution-free properties.
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Affiliation(s)
- Haitao Du
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, People’s Republic of China
- Guangxi Yangxiang co., LTD, Guigang City, Guangxi, People’s Republic of China
| | - Wangyuan Yao
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, People’s Republic of China
| | | | - Yanmei Ding
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, People’s Republic of China
| | - Huaisen Zhu
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, People’s Republic of China
| | - Huachun Pan
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, People’s Republic of China
| | - Kewei Li
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, People’s Republic of China
| | - Zeeshan Ahmad Bhutta
- The Royal (Dick) School of Veterinary Studies, University of Edinburgh, Midlothian, Scotland, United Kingdom
| | - Suozhu Liu
- College of Animals Husbandry and Veterinary Medicine, Tibet Agricultural and Animal Husbandry University, Linzhi, Tibet, People’s Republic China
| | - Jiakui Li
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, People’s Republic of China
- College of Animals Husbandry and Veterinary Medicine, Tibet Agricultural and Animal Husbandry University, Linzhi, Tibet, People’s Republic China
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7
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Chauhan S, Dhawan DK, Saini A, Preet S. Antimicrobial peptides against colorectal cancer-a focused review. Pharmacol Res 2021; 167:105529. [PMID: 33675962 DOI: 10.1016/j.phrs.2021.105529] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 02/25/2021] [Accepted: 03/01/2021] [Indexed: 12/25/2022]
Abstract
Despite recent advances in the treatment of colorectal cancer (CRC), low patient survival rate due to emergence of drug resistant cancer cells, metastasis and multiple deleterious side effects of chemotherapy, is a cause of public concern globally. To negate these clinical conundrums, search for effective and harmless novel molecular entities for the treatment of CRC is an urgent necessity. Since antimicrobial peptides (AMPs) are part of innate immunity of living beings, it is quite imperative to look for essential attributes of these peptides which may contribute to their effectiveness against carcinogenesis. Once identified, those characteristics can be suitably modified using several synthetic and computational techniques to further enhance their selectivity and pharmacokinetic profiles. Hence, this review analyses scientific reports describing the antiproliferative action of AMPs derived from several sources, particularly focusing on various colon cancer in vitro/in vivo investigations. On perusal of the literature, it appears that AMPs based therapeutics would definitely find special place in CRC therapy in future either alone or as an adjunct to chemotherapy provided some necessary alterations are made in their natural structures to make them more compatible with modern clinical practice. In this context, further in-depth research is warranted in adequate in vivo models.
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Affiliation(s)
- Sonia Chauhan
- Department of Biophysics, Basic Medical Sciences, Panjab University, Block-II, South Campus, Sector-25, Chandigarh 160014, India.
| | - Devinder K Dhawan
- Department of Biophysics, Basic Medical Sciences, Panjab University, Block-II, South Campus, Sector-25, Chandigarh 160014, India.
| | - Avneet Saini
- Department of Biophysics, Basic Medical Sciences, Panjab University, Block-II, South Campus, Sector-25, Chandigarh 160014, India.
| | - Simran Preet
- Department of Biophysics, Basic Medical Sciences, Panjab University, Block-II, South Campus, Sector-25, Chandigarh 160014, India.
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8
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Bosso A, Di Maro A, Cafaro V, Di Donato A, Notomista E, Pizzo E. Enzymes as a Reservoir of Host Defence Peptides. Curr Top Med Chem 2021; 20:1310-1323. [PMID: 32223733 DOI: 10.2174/1568026620666200327173815] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 02/21/2020] [Accepted: 03/11/2020] [Indexed: 12/16/2022]
Abstract
Host defence peptides (HDPs) are powerful modulators of cellular responses to various types of insults caused by pathogen agents. To date, a wide range of HDPs, from species of different kingdoms including bacteria, plant and animal with extreme diversity in structure and biological activity, have been described. Apart from a limited number of peptides ribosomally synthesized, a large number of promising and multifunctional HDPs have been identified within protein precursors, with properties not necessarily related to innate immunity, consolidating the fascinating hypothesis that proteins have a second or even multiple biological mission in the form of one or more bio-active peptides. Among these precursors, enzymes constitute certainly an interesting group, because most of them are mainly globular and characterized by a fine specific internal structure closely related to their catalytic properties and also because they are yet little considered as potential HDP releasing proteins. In this regard, the main aim of the present review is to describe a panel of HDPs, identified in all canonical classes of enzymes, and to provide a detailed description on hydrolases and their corresponding HDPs, as there seems to exist a striking link between these structurally sophisticated catalysts and their high content in cationic and amphipathic cryptic peptides.
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Affiliation(s)
- Andrea Bosso
- Department of Biology, University of Naples 'Federico II', Naples, Italy
| | - Antimo Di Maro
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies (DiSTABiF), University of Campania 'Luigi Vanvitelli', Caserta, Italy
| | - Valeria Cafaro
- Department of Biology, University of Naples 'Federico II', Naples, Italy
| | - Alberto Di Donato
- Department of Biology, University of Naples 'Federico II', Naples, Italy
| | - Eugenio Notomista
- Department of Biology, University of Naples 'Federico II', Naples, Italy
| | - Elio Pizzo
- Department of Biology, University of Naples 'Federico II', Naples, Italy
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9
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Bao CL, Liu SZ, Shang ZD, Liu YJ, Wang J, Zhang WX, Dong B, Cao YH. Bacillus amyloliquefaciens TL106 protects mice against enterohaemorrhagic Escherichia coli O157:H7-induced intestinal disease through improving immune response, intestinal barrier function and gut microbiota. J Appl Microbiol 2020; 131:470-484. [PMID: 33289241 DOI: 10.1111/jam.14952] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 11/24/2020] [Accepted: 11/26/2020] [Indexed: 01/20/2023]
Abstract
AIMS This study evaluated the effects of Bacillus amyloliquefaciens TL106, isolated from Tibetan pigs' faeces, on the growth performance, immune response, intestinal barrier function, morphology of jejunum, caecum and colon, and gut microbiota in the mice with enterohaemorrhagic Escherichia coli (EHEC)-induced intestinal diseases. METHODS AND RESULTS In all, 40 female C57BL/6J mice were randomly divided into four groups: mice fed a normal diet (Control), mice oral administration of TL106 daily (Ba), mice challenged with EHEC O157:H7 on day 15 (O157) and mice oral administration of TL106 daily and challenged with EHEC O157:H7 on day 15 (Ba+O157). The TL106 was administrated to mice for 14 days, and mice were infected with O157:H7 at day 15. We found that TL106 could prevent the weight loss caused by O157:H7 infection and alleviated the associated increase in pro-inflammatory factors (TNF-α, IL-1β, IL-6 and IL-8) and decrease in anti-inflammatory factor (IL-10) in serum and intestinal tissues of mice caused by O157:H7 infection (P < 0·05). Additionally, TL106 could prevent disruption of gut morphology caused by O157:H7 infection, and alleviate the associated decrease in expression of tight junction proteins (ZO-1, occludin and claudin-1) in jejunum and colon (P < 0·05). In caecum and colon, the alpha diversity for bacterial community analysis of Chao and ACE index in Ba+O157 group were higher than O157 group. The TL106 stabilized gut microbiota disturbed by O157:H7, including increasing Lachnospiraceae, Prevotellaceae, Muribaculaceae and Akkermansiaceae, and reducing Lactobacillaceae. CONCLUSIONS We indicated the B. amyloliquefaciens TL106 can effectively protect mice against EHEC O157:H7 infection by relieving inflammation, improving intestinal barrier function, mitigating permeability disruption and stabilizing the gut microbiota. SIGNIFICANCE AND IMPACT OF THE STUDY Bacillus amyloliquefaciens TL106 can prevent and treat intestinal disease induced by EHEC O157:H7 in mice, which may be a promising probiotic for disease prevention in animals.
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Affiliation(s)
- C L Bao
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, People's Republic of China
| | - S Z Liu
- College of Animal Science, Tibet Agricultural and Animal Husbandry University, Linzhi, People's Republic of China
| | - Z D Shang
- College of Animal Science, Tibet Agricultural and Animal Husbandry University, Linzhi, People's Republic of China
| | - Y J Liu
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, People's Republic of China
| | - J Wang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, People's Republic of China
| | - W X Zhang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, People's Republic of China
| | - B Dong
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, People's Republic of China
| | - Y H Cao
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, People's Republic of China
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Yang S, Li J, Aweya JJ, Yuan Z, Weng W, Zhang Y, Liu GM. Antimicrobial mechanism of Larimichthys crocea whey acidic protein-derived peptide (LCWAP) against Staphylococcus aureus and its application in milk. Int J Food Microbiol 2020; 335:108891. [DOI: 10.1016/j.ijfoodmicro.2020.108891] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 08/19/2020] [Accepted: 09/06/2020] [Indexed: 12/16/2022]
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Computational modelling and docking insight of bacterial peptide as ideal anti-tubercular and anticancer agents. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2020. [DOI: 10.1016/j.bcab.2020.101644] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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12
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Khusro A, Aarti C, Mahizhaveni B, Dusthackeer A, Agastian P, Esmail GA, Ghilan AKM, Al-Dhabi NA, Arasu MV. Purification and characterization of anti-tubercular and anticancer protein from Staphylococcus hominis strain MANF2: In silico structural and functional insight of peptide. Saudi J Biol Sci 2020; 27:1107-1116. [PMID: 32256172 PMCID: PMC7105933 DOI: 10.1016/j.sjbs.2020.01.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 01/07/2020] [Accepted: 01/16/2020] [Indexed: 01/22/2023] Open
Abstract
The present context was investigated to purify and characterize anti-tubercular as well as anticancer protein from fermented food associated Staphylococcus hominis strain MANF2. Initially, the anti-tubercular potency of strain MANF2 was assessed against Mycobacterium tuberculosis H37Rv using luciferase reporter phase assay which revealed pronounced relative light unit (RLU) reduction of 92.5 ± 1.2%. The anticancer property of strain MANF2 was demonstrated against lung cancer (A549) and colon cancer (HT-29) cell lines using MTT assay which showed reduced viabilities. Anti-tubercular activities of the purified protein were observed to be increased significantly (P < 0.05) ranging from 34.6 ± 0.3 to 71.4 ± 0.4% of RLU reduction. Likewise, the purified protein showed significantly (P < 0.05) reduced viabilities of A549 and HT-29 cancer cells with IC50 values of 46.6 and 48.9 µg/mL, respectively. The nominal mass of the purified protein was found to be 7712.3 Da as obtained from MALDI-TOF MS/MS spectrum. The protein showed the sequence homology with 1–336 amino acids of Glyceraldehyde-3-phosphate dehydrogenase from Staphylococcus sp., thus, categorizing as a new class of Glyceraldehyde-3-phosphate dehydrogenase-like protein. The amino acid sequence of the most abundant peptide (m/z = 1922.12) in the purified protein was obtained as ‘KAIGLVIPEIDGKLDGGAQRV’ and it was identified as peptide NMANF2. In silico tools predicted significant stereo-chemical, physiochemical, and functional characteristics of peptide NMANF2. In a nutshell, protein purified from strain MANF2 can certainly be used as an ideal therapeutic agent against tuberculosis and cancer (lung and colon).
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Affiliation(s)
- Ameer Khusro
- Research Department of Plant Biology and Biotechnology, Loyola College (Autonomous), University of Madras, Chennai 34, Tamil Nadu, India
| | - Chirom Aarti
- Research Department of Plant Biology and Biotechnology, Loyola College (Autonomous), University of Madras, Chennai 34, Tamil Nadu, India
| | - B Mahizhaveni
- Department of Bacteriology, National Institute for Research in Tuberculosis, ICMR, Sathyamoorty Road, Chetpet, Chennai 31, Tamil Nadu, India
| | - Azger Dusthackeer
- Department of Bacteriology, National Institute for Research in Tuberculosis, ICMR, Sathyamoorty Road, Chetpet, Chennai 31, Tamil Nadu, India
| | - Paul Agastian
- Research Department of Plant Biology and Biotechnology, Loyola College (Autonomous), University of Madras, Chennai 34, Tamil Nadu, India
| | - Galal Ali Esmail
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Abdul-Kareem Mohammed Ghilan
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Naif Abdullah Al-Dhabi
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Mariadhas Valan Arasu
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
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Jiao K, Gao J, Zhou T, Yu J, Song H, Wei Y, Gao X. Isolation and purification of a novel antimicrobial peptide from Porphyra yezoensis. J Food Biochem 2019; 43:e12864. [PMID: 31353731 DOI: 10.1111/jfbc.12864] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 03/30/2019] [Accepted: 04/01/2019] [Indexed: 11/27/2022]
Abstract
We aimed to isolate antimicrobial peptides from Porphyra yezoensis. Enzymatic hydrolysate of P. yezoensis was purified by ultrafiltration, molecular sieve chromatography, and ion exchange chromatography sequentially. A novel peptide with strong antimicrobial activity against Staphylococcus aureus was isolated and the amino acid sequence was identified to be Thr-Pro-Asp-Ser-Glu-Ala-Leu (TPDSEAL). Physical and chemical properties and antimicrobial activity of the peptide were determined. The antimicrobial mechanism was studied. The antimicrobial activity of TPDSEAL kept stable under acidic or basic conditions, high temperature, and ultraviolet radiation. The antimicrobial mechanism of antimicrobial peptides may damage the cell wall and membrane, and enhance the permeability of cells, which leads to the outflow of intracellular substances and death of bacteria. This study provides novel insight into the preparation of marine-derived antimicrobial peptides. PRACTICAL APPLICATIONS: Antimicrobial peptides, which act as defensive weapons against microbes, have been broadly used as food additives in food industry. Due to the limited amount of natural antimicrobial peptides in organisms and the high cost of chemical synthesis, producing novel natural antimicrobial peptides with bioengineering methods has become an urgent task. In the present study, we prepared a novel antimicrobial peptide from pepsin-digested hydrolysate of Porphyra yezoensis using ultrafiltration, molecular sieve chromatography, ion exchange chromatography, and mass spectrometry analysis. A novel peptide with strong antimicrobial activity against Staphylococcus aureus was isolated and the amino acid sequence was identified to be Thr-Pro-Asp-Ser-Glu-Ala-Leu (TPDSEAL). The identified peptide exhibits great stability under acidic or basic conditions, high temperature, and ultraviolet radiation. Mechanism revealed that TPDSEAL treatment may damage the cell wall and membrane, enhance the permeability of cells, and lead to the death of bacteria. Our study provides the novel insight into the preparation of marine-derived antimicrobial peptides.
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Affiliation(s)
- Kui Jiao
- College of Life Sciences, Qingdao University, Qingdao, China
| | - Jie Gao
- College of Life Sciences, Qingdao University, Qingdao, China
| | - Tao Zhou
- Department of Neurosurgery, Brain Hospital, People's Hospital of WeiFang, Shandong, China
| | - Jia Yu
- College of Life Sciences, Qingdao University, Qingdao, China
| | - Huiping Song
- College of Life Sciences, Qingdao University, Qingdao, China
| | - Yuxi Wei
- College of Life Sciences, Qingdao University, Qingdao, China
| | - Xiang Gao
- College of Life Sciences, Qingdao University, Qingdao, China
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Kong X, Yang M, Abbas HMK, Wu J, Li M, Dong W. Antimicrobial genes from Allium sativum and Pinellia ternata revealed by a Bacillus subtilis expression system. Sci Rep 2018; 8:14514. [PMID: 30266995 PMCID: PMC6162269 DOI: 10.1038/s41598-018-32852-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Accepted: 08/31/2018] [Indexed: 11/09/2022] Open
Abstract
Antimicrobial genes are found in all classes of life. To efficiently isolate these genes, we used Bacillus subtilis and Escherichia coli as target indicator bacteria and transformed them with cDNA libraries. Among thousands of expressed proteins, candidate proteins played antimicrobial roles from the inside of the indicator bacteria (internal effect), contributing to the sensitivity (much more sensitivity than the external effect from antimicrobial proteins working from outside of the cells) and the high throughput ability of screening. We found that B. subtilis is more efficient and reliable than E. coli. Using the B. subtilis expression system, we identified 19 novel, broad-spectrum antimicrobial genes. Proteins expressed by these genes were extracted and tested, exhibiting strong external antibacterial, antifungal and nematicidal activities. Furthermore, these newly isolated proteins could control plant diseases. Application of these proteins secreted by engineered B. subtilis in soil could inhibit the growth of pathogenic bacteria. These proteins are thermally stable and suitable for clinical medicine, as they exhibited no haemolytic activity. Based on our findings, we speculated that plant, animal and human pathogenic bacteria, fungi or even cancer cells might be taken as the indicator target cells for screening specific resistance genes.
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Affiliation(s)
- Xi Kong
- Department of Plant Pathology, College of Plant Science and Technology and the Key Lab of Crop Disease Monitoring & Safety Control in Hubei Province, Huazhong Agricultural University, Wuhan, Hubei Province, 430070, China
| | - Mei Yang
- Department of Plant Pathology, College of Plant Science and Technology and the Key Lab of Crop Disease Monitoring & Safety Control in Hubei Province, Huazhong Agricultural University, Wuhan, Hubei Province, 430070, China
| | - Hafiz Muhammad Khalid Abbas
- Department of Plant Pathology, College of Plant Science and Technology and the Key Lab of Crop Disease Monitoring & Safety Control in Hubei Province, Huazhong Agricultural University, Wuhan, Hubei Province, 430070, China
| | - Jia Wu
- Department of Plant Pathology, College of Plant Science and Technology and the Key Lab of Crop Disease Monitoring & Safety Control in Hubei Province, Huazhong Agricultural University, Wuhan, Hubei Province, 430070, China
| | - Mengge Li
- Department of Plant Pathology, College of Plant Science and Technology and the Key Lab of Crop Disease Monitoring & Safety Control in Hubei Province, Huazhong Agricultural University, Wuhan, Hubei Province, 430070, China
| | - Wubei Dong
- Department of Plant Pathology, College of Plant Science and Technology and the Key Lab of Crop Disease Monitoring & Safety Control in Hubei Province, Huazhong Agricultural University, Wuhan, Hubei Province, 430070, China.
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15
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Atia-tul-Wahab, Siddiqui M, Ibrahim I, Hussain A, Ajandouz EH, Hijazi A, Baydoun E, Choudhary MI. Cunninghamella blakesleeana-mediated biotransformation of a contraceptive drug, desogestrel, and anti-MDR-Staphylococcus aureus activity of its metabolites. Bioorg Chem 2018; 77:152-158. [DOI: 10.1016/j.bioorg.2017.12.027] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Revised: 12/27/2017] [Accepted: 12/29/2017] [Indexed: 11/26/2022]
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16
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Yang W, Xin H, Cao F, Hou J, Ma L, Bao L, Wang F, Yu Z, Cao B. The significance of the diversity and composition of the cecal microbiota of the Tibetan swine. ANN MICROBIOL 2018. [DOI: 10.1007/s13213-018-1329-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
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17
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Zhao P, Xue Y, Gao W, Li J, Zu X, Fu D, Bai X, Zuo Y, Hu Z, Zhang F. Bacillaceae-derived peptide antibiotics since 2000. Peptides 2018; 101:10-16. [PMID: 29269072 DOI: 10.1016/j.peptides.2017.12.018] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2017] [Revised: 12/18/2017] [Accepted: 12/18/2017] [Indexed: 10/18/2022]
Abstract
Members of the Bacillaceae family, including Bacillus spp., Brevibacillus spp., Paenibacillus spp., Aneurinibacillus sp., and Halobacillus sp., are an important source of structurally diverse classes of short peptides of ∼ 30 residues or fewer possessing peculiar and rapid killing activity against various pathogens. Additionally, many have unique structures that enhance resistance to hydrolysis by proteases, and these are ideal therapeutic tools and potential alternatives to current antibiotics. The need for novel antibiotic lead compounds is urgent, and this review summarises 119 Bacillaceae compounds published since 2000, including 12 surfactin-like lipopeptides, 16 iturinic lipopeptides, fengycin C, 33 other cyclic lipopeptides, 26 linear lipopeptides, two thiopeptides, four 2,5-diketopiperazines, 20 typical cyclic peptides, and five standard linear peptides. The current and potential therapeutic applications of these peptides, including structure, antibacterial, antifungal, and antiviral activities, are discussed.
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Affiliation(s)
- Pengchao Zhao
- College of Medical Technology and Engineering, Henan University of Science and Technology, Luoyang, 471023, China
| | - Yun Xue
- College of Medical Technology and Engineering, Henan University of Science and Technology, Luoyang, 471023, China.
| | - Weina Gao
- College of Medical Technology and Engineering, Henan University of Science and Technology, Luoyang, 471023, China
| | - Jinghua Li
- College of Medical Technology and Engineering, Henan University of Science and Technology, Luoyang, 471023, China
| | - Xiangyang Zu
- College of Medical Technology and Engineering, Henan University of Science and Technology, Luoyang, 471023, China
| | - Dongliao Fu
- College of Medical Technology and Engineering, Henan University of Science and Technology, Luoyang, 471023, China
| | - Xuefei Bai
- College of Medical Technology and Engineering, Henan University of Science and Technology, Luoyang, 471023, China
| | - Yanjun Zuo
- College of Medical Technology and Engineering, Henan University of Science and Technology, Luoyang, 471023, China
| | - Zhigang Hu
- College of Medical Technology and Engineering, Henan University of Science and Technology, Luoyang, 471023, China
| | - Fengshou Zhang
- College of Medical Technology and Engineering, Henan University of Science and Technology, Luoyang, 471023, China
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Lin S, Sin WLW, Koh JJ, Lim F, Wang L, Cao D, Beuerman RW, Ren L, Liu S. Semisynthesis and Biological Evaluation of Xanthone Amphiphilics as Selective, Highly Potent Antifungal Agents to Combat Fungal Resistance. J Med Chem 2017; 60:10135-10150. [DOI: 10.1021/acs.jmedchem.7b01348] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Shuimu Lin
- School
of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China
- Singapore Eye Research Institute, The Academia, 20 College Road, Discovery Tower Level 6, Singapore 169856, Singapore
- National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou 510006, China
| | - Wan Ling Wendy Sin
- Singapore Eye Research Institute, The Academia, 20 College Road, Discovery Tower Level 6, Singapore 169856, Singapore
| | - Jun-Jie Koh
- Singapore Eye Research Institute, The Academia, 20 College Road, Discovery Tower Level 6, Singapore 169856, Singapore
| | - Fanghui Lim
- Singapore Eye Research Institute, The Academia, 20 College Road, Discovery Tower Level 6, Singapore 169856, Singapore
| | - Lin Wang
- School
of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China
- National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou 510006, China
| | - Derong Cao
- School
of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
| | - Roger W. Beuerman
- Singapore Eye Research Institute, The Academia, 20 College Road, Discovery Tower Level 6, Singapore 169856, Singapore
- SRP
Neuroscience and Behavioral Disorders, Duke-NUS Graduate Medical School, Singapore 169857, Singapore
| | - Li Ren
- School
of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China
- National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou 510006, China
| | - Shouping Liu
- Singapore Eye Research Institute, The Academia, 20 College Road, Discovery Tower Level 6, Singapore 169856, Singapore
- SRP
Neuroscience and Behavioral Disorders, Duke-NUS Graduate Medical School, Singapore 169857, Singapore
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