1
|
Gong F, Xin S, Liu X, He C, Yu X, Pan L, Zhang S, Gao H, Xu J. Multiple biological characteristics and functions of intestinal biofilm extracellular polymers: friend or foe? Front Microbiol 2024; 15:1445630. [PMID: 39224216 PMCID: PMC11367570 DOI: 10.3389/fmicb.2024.1445630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2024] [Accepted: 07/29/2024] [Indexed: 09/04/2024] Open
Abstract
The gut microbiota is vital to human health, and their biofilms significantly impact intestinal immunity and the maintenance of microbial balance. Certain pathogens, however, can employ biofilms to elude identification by the immune system and medical therapy, resulting in intestinal diseases. The biofilm is formed by extracellular polymorphic substances (EPS), which shield microbial pathogens from the host immune system and enhance its antimicrobial resistance. Therefore, investigating the impact of extracellular polysaccharides released by pathogens that form biofilms on virulence and defence mechanisms is crucial. In this review, we provide a comprehensive overview of current pathogenic biofilm research, deal with the role of extracellular polymers in the formation and maintenance of pathogenic biofilm, and elaborate different prevention and treatment strategies to provide an innovative approach to the treatment of intestinal pathogen-based diseases.
Collapse
Affiliation(s)
- Fengrong Gong
- Department of Clinical Medicine, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Shuzi Xin
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Xiaohui Liu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Chengwei He
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Xinyi Yu
- Department of Clinical Medicine, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Luming Pan
- Department of Clinical Medicine, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Sitian Zhang
- Department of Clinical Medicine, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Han Gao
- Department of Clinical Laboratory, Aerospace Center Hospital, Beijing, China
| | - Jingdong Xu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| |
Collapse
|
2
|
Wang Y, Zhang X, Tian X, Wang Y, Xing X, Song S. Research progress on the functions, preparation and detection methods of l-fucose. Food Chem 2024; 433:137393. [PMID: 37672945 DOI: 10.1016/j.foodchem.2023.137393] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 08/22/2023] [Accepted: 09/01/2023] [Indexed: 09/08/2023]
Abstract
l-fucose is a six-carbon sugar that has potential applications in many fields. It exerts antitumor effects and could relieve intestinal disease. It exhibits potential as an emulsifier in the food industry. It is also used as a functional food and in anti-aging skincare products. However, at present, it is not possible to prepare high-purity l-fucose on a large scale, and its preparation needs further development. This review summarizes the preparation methods of l-fucose including chemical synthesis, enzymatic synthesis, microbial fermentation, and separation and purification from algae. The detection methods of l-fucose are also introduced in detail, such as l-fucose-specific lectin, detection l-fucose dehydrogenase, cysteine-sulfuric acid method, high-performance liquid chromatography, gas chromatography, and biosensors. In this review, the properties and pharmacological effects of l-fucose; preparation methods, and the commonly used detection methods of l-fucose are reviewed to serve as a reference material.
Collapse
Affiliation(s)
- Yan Wang
- Marine College, Shandong University, Weihai 264209, China
| | - Xiao Zhang
- Marine College, Shandong University, Weihai 264209, China
| | - Xiao Tian
- Marine College, Shandong University, Weihai 264209, China
| | - Yuan Wang
- Marine College, Shandong University, Weihai 264209, China
| | - Xiang Xing
- Marine College, Shandong University, Weihai 264209, China; Weihai Research Institute of Industrial Technology, Shandong University, Weihai 264209, China.
| | - Shuliang Song
- Marine College, Shandong University, Weihai 264209, China; Weihai Research Institute of Industrial Technology, Shandong University, Weihai 264209, China.
| |
Collapse
|
3
|
Wu S, Liu J, Zhang Y, Song J, Zhang Z, Yang Y, Wu M, Tong H. Structural characterization and antagonistic effect against P-selectin-mediated function of SFF-32, a fucoidan fraction from Sargassum fusiforme. JOURNAL OF ETHNOPHARMACOLOGY 2022; 295:115408. [PMID: 35659565 DOI: 10.1016/j.jep.2022.115408] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 05/16/2022] [Accepted: 05/24/2022] [Indexed: 06/15/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Sargassum fusiforme (Harvey) Setchell, or Haizao, has been used in traditional Chinese medicine (TCM) since at least the eighth century a.d. S. fusiforme is an essential component of several Chinese formulas, including Haizao Yuhu Decoction, used to treat goiter, and Neixiao Lei Li Wan used to treat scrofuloderma. The pharmacological efficacy of S. fusiforme may be related to its anti-inflammatory effect. AIM OF THE STUDY To determine the structural characteristics of SFF-32, a fucoidan fraction from S. fusiforme, and its antagonistic effect against P-selectin mediated function. MATERIALS AND METHODS The primary structure of SFF-32 was determined using methylation/GC-MS and NMR analysis. Surface morphology and solution conformation of SFF-32 were determined by scanning electron microscopy (SEM), Congo red test, and circular dichroic (CD) chromatography, respectively. The inhibitory effects of SFF-32 against the binding of P-selectin to HL-60 cells were evaluated using flow cytometry, static adhesion assay, and parallel-plate flow chamber assay. Furthermore, the blocking effect of SFF-32 on the interaction between P-selectin and PSGL-1 was evaluated using an in vitro protein binding assay. RESULTS The main linkage types of SFF-32 were proven to →[3)-α-l-Fucp-(1→3,4)-α-l-Fucp-(1]2→[4)-β-d-Manp-(1→3)-d-GlcAp-(1]2→4)-β-d-Manp-(1→3)-β-d-Glcp-(1→4)-β-d-Manp-(1→2,3)-β-d-Galp-(1→4)-β-d-Manp-(1→[4)-α-l-Rhap-(1]3→. The sulfated unit or terminal xylose residues were attached to the backbone through the C-3 of some fucose residues and terminal xylose residues were attached to C-3 of galactose residues. Moreover, SFF-32 disrupted P-selectin-mediated cell adhesion and rolling as well as blocked the interaction between P-selectin and its physiological ligand PSGL-1 in a dose-dependent manner. CONCLUSIONS Blocking the binding between P-selectin and PSGL-1 is the possible underlying mechanism by which SFF-32 inhibits P-selectin-mediated function, which demonstrated that SFF-32 may be a potential anti-inflammatory lead compound.
Collapse
Affiliation(s)
- Siya Wu
- Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, PR China
| | - Jian Liu
- Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, PR China
| | - Ya Zhang
- Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, PR China
| | - Jianxi Song
- Analytical and Testing Center, Beihua University, Jilin, 132013, PR China
| | - Zhongshan Zhang
- Key Laboratory of Vector Biology and Pathogen Control of Zhejiang Province, Huzhou University, Huzhou Cent Hosp, Huzhou, 313000, PR China
| | - Yue Yang
- Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, PR China
| | - Mingjiang Wu
- Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, PR China.
| | - Haibin Tong
- Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, PR China.
| |
Collapse
|
4
|
Xiao M, Ren X, Cui J, Li R, Liu Z, Zhu L, Kong Q, Fu X, Mou H. A novel glucofucobiose with potential prebiotic activity prepared from the exopolysaccharides of Clavibacter michiganensis M1. Food Chem 2022; 377:132001. [PMID: 34999464 DOI: 10.1016/j.foodchem.2021.132001] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Revised: 11/14/2021] [Accepted: 11/18/2021] [Indexed: 11/04/2022]
Abstract
Fucose and fucosylated oligosaccharides have important applications in various industries owing to their prebiotic, anti-inflammatory, anticoagulant, and antiviral activities. Here, we aimed to obtain fucosylated oligosaccharides using the acidolysis method to depolymerize exopolysaccharides extracted from Clavibacter michiganensis M1. Based on structural analysis, the prepared glucofucobiose was found to consist of d-glucose and l-fucose, with a molecular weight of 326 Da and a structure of d-Glcp-β-(1→4)-l-Fucp. The prebiotic activity of glucofucobiose was compared with that of 2'-fucosyllactose (2'-FL), the most abundant oligosaccharide in human milk. According to the results, glucofucobiose could significantly promote the proliferation of six probiotic strains, and short-chain fatty acid production of five probiotic strains on glucofucobiose was substantially higher than that on 2'-FL at 48 h of fermentation. Overall, this study proposed a new technology for obtaining fucosylated oligosaccharides. The prepared glucofucobiose was found to exhibit potential prebiotic activity and should be further assessed.
Collapse
Affiliation(s)
- Mengshi Xiao
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, Shandong, People's Republic of China.
| | - Xinmiao Ren
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, Shandong, People's Republic of China.
| | - Jinzheng Cui
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, Shandong, People's Republic of China.
| | - Rong Li
- Qingdao Women and Children Hospital, Qingdao 266003, Shandong, People's Republic of China.
| | - Zhemin Liu
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, Shandong, People's Republic of China.
| | - Lin Zhu
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, Shandong, People's Republic of China; Weihai Deepsea Biotechnology Co., Ltd, Weihai 264300, Shandong, People's Republic of China.
| | - Qing Kong
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, Shandong, People's Republic of China.
| | - Xiaodan Fu
- State Key Laboratory of Food Science and Technology, China-Canada Joint Laboratory of Food Science and Technology (Nanchang), Nanchang University, 235 Nanjing East Road, Nanchang, Jiangxi 330047, People's Republic of China.
| | - Haijin Mou
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, Shandong, People's Republic of China.
| |
Collapse
|
5
|
Xiao M, Ren X, Yu Y, Gao W, Zhu C, Sun H, Kong Q, Fu X, Mou H. Fucose-containing bacterial exopolysaccharides: Sources, biological activities, and food applications. Food Chem X 2022; 13:100233. [PMID: 35498987 PMCID: PMC9039932 DOI: 10.1016/j.fochx.2022.100233] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 01/22/2022] [Accepted: 01/24/2022] [Indexed: 12/15/2022] Open
Abstract
Bacterial exopolysaccharides are high molecular weight polysaccharides that are secreted by a wide range of bacteria, with diverse structures and easy preparation. Fucose, fucose-containing oligosaccharides (FCOs), and fucose-containing polysaccharides (FCPs) have important applications in the food and medicine fields, including applications in products for removing Helicobacter pylori and infant formula powder. Fucose-containing bacterial exopolysaccharide (FcEPS) is a prospective source of fucose, FCOs, and FCPs. This review systematically summarizes the common sources and applications of FCPs and FCOs and the bacterial strains capable of producing FcEPS reported in recent years. The repeated-unit structures, synthesis pathways, and factors affecting the production of FcEPS are reviewed, as well as the degradation methods of FcEPS for preparing FCOs. Finally, the bioactivities of FcEPS, including anti-oxidant, prebiotic, anti-cancer, anti-inflammatory, anti-viral, and anti-microbial activities, are discussed and may serve as a reference strategy for further applications of FcEPS in the functional food and medicine industries.
Collapse
Key Words
- 2′-FL, 2′-fucosyllactose
- 3-FL, 3-fucosyllactose
- ABTS, 2,2′-azinobis-3-ethylbenzothiazoline-6-sulphonate
- Bacterial exopolysaccharides
- Bioactivity
- DPPH, 2,2-diphenyl-1-picrylhydrazyl
- EPS, exopolysaccharides
- FCOs, fucose-containing oligosaccharides
- FCPs, fucose-containing polysaccharides
- FcEPS, fucose-containing EPS
- Food application
- Fucose
- HMOs, human milk oligosaccharides
- MAPK, mitogen-activated protein kinase
- PBMCs, peripheral blood mononuclear cells
- ROS, reactive oxygen species
- SCFAs, short-chain fatty acids
- Structure
Collapse
Affiliation(s)
- Mengshi Xiao
- College of Food Science and Engineering, Ocean University of China, No. 5 Yushan Road, Qingdao 266003, Shandong Province, People's Republic of China
| | - Xinmiao Ren
- College of Food Science and Engineering, Ocean University of China, No. 5 Yushan Road, Qingdao 266003, Shandong Province, People's Republic of China
| | - Ying Yu
- College of Food Science and Engineering, Ocean University of China, No. 5 Yushan Road, Qingdao 266003, Shandong Province, People's Republic of China
| | - Wei Gao
- College of Food Science and Engineering, Ocean University of China, No. 5 Yushan Road, Qingdao 266003, Shandong Province, People's Republic of China
| | - Changliang Zhu
- College of Food Science and Engineering, Ocean University of China, No. 5 Yushan Road, Qingdao 266003, Shandong Province, People's Republic of China
| | - Han Sun
- College of Food Science and Engineering, Ocean University of China, No. 5 Yushan Road, Qingdao 266003, Shandong Province, People's Republic of China
| | - Qing Kong
- College of Food Science and Engineering, Ocean University of China, No. 5 Yushan Road, Qingdao 266003, Shandong Province, People's Republic of China
| | - Xiaodan Fu
- State Key Laboratory of Food Science and Technology, China-Canada Joint Laboratory of Food Science and Technology (Nanchang), Key Laboratory of Bioactive Polysaccharides of Jiangxi Province, Nanchang University, No. 235 Nanjing East Road, Nanchang 330047, Jiangxi Province, People's Republic of China
- Corresponding authors.
| | - Haijin Mou
- College of Food Science and Engineering, Ocean University of China, No. 5 Yushan Road, Qingdao 266003, Shandong Province, People's Republic of China
- Corresponding authors.
| |
Collapse
|
6
|
Dhanya BE, Prabhu A, Rekha PD. Extraction and characterization of an exopolysaccharide from a marine bacterium. Int Microbiol 2021; 25:285-295. [PMID: 34668088 DOI: 10.1007/s10123-021-00216-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 09/25/2021] [Accepted: 10/13/2021] [Indexed: 11/29/2022]
Abstract
The marine bacterial exopolysaccharides (EPS) have transfigured the biotech sector with their myriad applications and prospects. This work was carried out to characterize and analyze the functional and biochemical properties of an EPS (EPS-DR3A) produced by a marine bacterium, Pseudoalteromonas sp. YU16-DR3A. The bacterium was cultured in Zobell marine broth for the production of EPS. The extracted EPS designated as EPS-DR3A was composed of 69% carbohydrates and 7.6% proteins with a molecular weight of 20 kDa. FT-IR spectra showed the presence of different functional groups. The monosaccharide analysis performed using GC-MS showed the presence of fucose, erythrotetrose, ribose, and glucose as monomers. EPS-DR3A showed excellent emulsifying activity against the tested hydrocarbons and food oils with stable emulsions. Rheological analysis of EPS-DR3A revealed the pseudoplastic behavior. The EPS-DR3A displayed good thermal stability with a degradation temperature of 249 °C and a melting point at 322 °C. Further, it had the ability to scavenge DPPH and nitric oxide free radicals with good total antioxidant activity. The in vitro biocompatibility study of EPS-DR3A showed high degree of biocompatibility with human dermal fibroblast cells at the tested concentrations. Taken together, the findings such as thermostability, emulsifying activity, pseudoplasticity, antioxidant activity, and biocompatibility of EPS-DR3A make this biomolecule an important candidate for a wide range of biomedical applications.
Collapse
Affiliation(s)
- Bythadka Erappa Dhanya
- Yenepoya Research Centre, Yenepoya (Deemed to be University), Deralakatte, Karnataka, 575018, Mangalore, India.,Department of Biosciences, Mangalagangothri, Mangalore University, Mangalore, Karnataka, India
| | - Ashwini Prabhu
- Yenepoya Research Centre, Yenepoya (Deemed to be University), Deralakatte, Karnataka, 575018, Mangalore, India
| | - Punchappady Devasya Rekha
- Yenepoya Research Centre, Yenepoya (Deemed to be University), Deralakatte, Karnataka, 575018, Mangalore, India.
| |
Collapse
|
7
|
Xiao M, Fu X, Wei X, Chi Y, Gao W, Yu Y, Liu Z, Zhu C, Mou H. Structural characterization of fucose-containing disaccharides prepared from exopolysaccharides of Enterobacter sakazakii. Carbohydr Polym 2021; 252:117139. [PMID: 33183598 DOI: 10.1016/j.carbpol.2020.117139] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 09/13/2020] [Accepted: 09/22/2020] [Indexed: 01/21/2023]
Abstract
Fucose-containing oligosaccharides (FCOs) have important applications in the food, medicine, and cosmetics industries owing to their unique biological activities. The degradation of microbial fucose-containing exopolysaccharide (FcEPS) is a promising strategy for obtaining FCOs, and bacteriophage-borne glycanase is a useful tool for degrading FcEPS. Here, we aimed to obtain FCOs using bacteriophage-borne glycanase to depolymerize FcEPS from Enterobacter sakazakii. The FcEPS was mainly composed of l-fucose (42.72 %), d-galactose (20.59 %), and d-glucose (21.81 %). Based on the results of nuclear magnetic resonance and mass spectrometry, the obtained FCOs were disaccharide fragments with backbones of β-d-Glcp-(1→4)-β-l-Fucp and α-d-Galp-(1→3)-β-l-Fucp, respectively. So far, few studies of disaccharides prepared from FcEPS have been reported. This study demonstrated that the FcEPS of E. sakazakii was a reliable fucose-containing disaccharide source and that bacteriophage-borne glycanase was an effective degradation tool for obtaining FCOs fragments from FcEPS.
Collapse
Affiliation(s)
- Mengshi Xiao
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, Shandong, PR China.
| | - Xiaodan Fu
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, Shandong, PR China.
| | - Xinyi Wei
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, Shandong, PR China.
| | - Yongzhou Chi
- School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, Shandong, PR China.
| | - Wei Gao
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, Shandong, PR China.
| | - Ying Yu
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, Shandong, PR China.
| | - Zhemin Liu
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, Shandong, PR China.
| | - Changliang Zhu
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, Shandong, PR China.
| | - Haijin Mou
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, Shandong, PR China.
| |
Collapse
|
8
|
Cavallero GJ, Ferreira ML, Casabuono AC, Ramírez SA, Vullo DL, Couto AS. Structural characterization and metal biosorptive activity of the major polysaccharide produced by Pseudomonas veronii 2E. Carbohydr Polym 2020; 245:116458. [DOI: 10.1016/j.carbpol.2020.116458] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 04/17/2020] [Accepted: 05/14/2020] [Indexed: 01/01/2023]
|
9
|
Cloutier M, Muru K, Ravicoularamin G, Gauthier C. Polysaccharides from Burkholderia species as targets for vaccine development, immunomodulation and chemical synthesis. Nat Prod Rep 2019; 35:1251-1293. [PMID: 30023998 DOI: 10.1039/c8np00046h] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Covering: up to 2018 Burkholderia species are a vast group of human pathogenic, phytopathogenic, and plant- or environment-associated bacteria. B. pseudomallei, B. mallei, and B. cepacia complex are the causative agents of melioidosis, glanders, and cystic fibrosis-related infections, respectively, which are fatal diseases in humans and animals. Due to their high resistance to antibiotics, high mortality rates, and increased infectivity via the respiratory tract, B. pseudomallei and B. mallei have been listed as potential bioterrorism agents by the Centers for Disease Control and Prevention. Burkholderia species are able to produce a large network of surface-exposed polysaccharides, i.e., lipopolysaccharides, capsular polysaccharides, and exopolysaccharides, which are virulence factors, immunomodulators, major biofilm components, and protective antigens, and have crucial implications in the pathogenicity of Burkholderia-associated diseases. This review provides a comprehensive and up-to-date account regarding the structural elucidation and biological activities of surface polysaccharides produced by Burkholderia species. The chemical synthesis of oligosaccharides mimicking Burkholderia polysaccharides is described in detail. Emphasis is placed on the recent research efforts toward the development of glycoconjugate vaccines against melioidosis and glanders based on synthetic or native Burkholderia oligo/polysaccharides.
Collapse
Affiliation(s)
- Maude Cloutier
- INRS-Institut Armand-Frappier, Université du Québec, 531, boul. des Prairies, Laval, Québec H7V 1B7, Canada.
| | | | | | | |
Collapse
|
10
|
Mucoid switch in Burkholderia cepacia complex bacteria: Triggers, molecular mechanisms and implications in pathogenesis. ADVANCES IN APPLIED MICROBIOLOGY 2019; 107:113-140. [PMID: 31128746 DOI: 10.1016/bs.aambs.2019.03.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Bacteria produce a vast range of exopolysaccharides (EPSs) to thrive in diverse environmental niches and often display a mucoid phenotype in solid media. One such exopolysaccharide, cepacian, is produced by bacteria of the genus Burkholderia and is of interest due to its role in pathogenesis associated with lung infections in cystic fibrosis (CF) patients. Cepacian is a repeat-unit polymer that has been implicated in biofilm formation, immune system evasion, interaction with host cells, resistance against antimicrobials, and virulence. Its biosynthesis proceeds through the Wzy-dependent polymerization and secretion mechanism, which requires a multienzymatic complex. Key aspects of its structure, genetic organization, and the regulatory network involved in mucoid switch and regulation of cepacian biosynthesis at transcriptional and posttranscriptional levels are reviewed. It is also evaluated the importance of cepacian biosynthesis/regulation key players as evolutionary targets of selection and highlighted the complexity of the regulatory network, which allows cells to coordinate the expression of metabolic functions to the ones of the cell wall, in order to be successful in ever changing environments, including in the interaction with host cells.
Collapse
|
11
|
Xu H, Zhang Z, Li H, Yan Y, Shi J, Xu Z. Comparative proteomic analysis revealed the metabolic mechanism of excessive exopolysaccharide synthesis by Bacillus mucilaginosus under CaCO 3 addition. Prep Biochem Biotechnol 2019; 49:435-443. [PMID: 30861358 DOI: 10.1080/10826068.2018.1541806] [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: 10/27/2022]
Abstract
The metabolic mechanism of excessive exopolysaccharide (BMPS) synthesis by Bacillus mucilaginosus CGMCC5766 under CaCO3 addition was investigated. Under CaCO3 (5 g/L), the maximum BMPS concentration reached 28.4 g/L, which was 11.2 folds higher than that of the control. Proteomics was then used to analyze the proteins with substantial differences expressed by B. mucilaginosus with and without CaCO3 addition. The proteomic results revealed that the enzymes related to the central metabolic pathway, amino acid biosynthesis, and nucleotide metabolism were depressed. By contrast, the UDP-glucose pyrophosphorylase involved in BMPS biosynthesis was overexpressed and converted metabolic flux from the biomass accumulation to the biosynthesis of BMPS. This research provides a new and widened perspective into understanding the mechanism of BMPS biosynthesis and applying theoretical and practical significance for the improvement of BMPS production from B. mucilaginosus.
Collapse
Affiliation(s)
- Hongyu Xu
- a National Engineering Laboratory for Cereal Fermentation Technology, School of Biotechnology , Jiangnan University , Wuxi , P. R. China.,b Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences , Jiangnan University , Wuxi , P. R. China
| | - Zhiwen Zhang
- b Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences , Jiangnan University , Wuxi , P. R. China
| | - Hui Li
- b Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences , Jiangnan University , Wuxi , P. R. China
| | - Yujie Yan
- b Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences , Jiangnan University , Wuxi , P. R. China
| | - Jinsong Shi
- b Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences , Jiangnan University , Wuxi , P. R. China
| | - Zhenghong Xu
- a National Engineering Laboratory for Cereal Fermentation Technology, School of Biotechnology , Jiangnan University , Wuxi , P. R. China.,b Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences , Jiangnan University , Wuxi , P. R. China.,c Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology , Jiangnan University , Wuxi , P. R. China
| |
Collapse
|
12
|
Richter AM, Fazli M, Schmid N, Shilling R, Suppiger A, Givskov M, Eberl L, Tolker-Nielsen T. Key Players and Individualists of Cyclic-di-GMP Signaling in Burkholderia cenocepacia. Front Microbiol 2019; 9:3286. [PMID: 30687272 PMCID: PMC6335245 DOI: 10.3389/fmicb.2018.03286] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 12/17/2018] [Indexed: 12/19/2022] Open
Abstract
Burkholderia cenocepacia H111 is an opportunistic pathogen associated with chronic lung infections in cystic fibrosis patients. Biofilm formation, motility and virulence of B. cenocepacia are regulated by the second messenger cyclic di-guanosine monophosphate (c-di-GMP). In the present study, we analyzed the role of all 25 putative c-di-GMP metabolizing proteins of B. cenocepacia H111 with respect to motility, colony morphology, pellicle formation, biofilm formation, and virulence. We found that RpfR is a key regulator of c-di-GMP signaling in B. cenocepacia, affecting a broad spectrum of phenotypes under various environmental conditions. In addition, we identified Bcal2449 as a regulator of B. cenocepacia virulence in Galleria mellonella larvae. While Bcal2449 consists of protein domains that may catalyze both c-di-GMP synthesis and degradation, only the latter was essential for larvae killing, suggesting that a decreased c-di-GMP level mediated by the Bcal2449 protein is required for virulence of B. cenocepacia. Finally, our work suggests that some individual proteins play a role in regulating exclusively motility (CdpA), biofilm formation (Bcam1160) or both (Bcam2836).
Collapse
Affiliation(s)
- Anja M Richter
- Costerton Biofilm Center, Department of Immunology and Microbiology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Mustafa Fazli
- Costerton Biofilm Center, Department of Immunology and Microbiology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Nadine Schmid
- Department of Microbiology, University of Zurich, Zurich, Switzerland
| | - Rebecca Shilling
- Department of Microbiology, University of Zurich, Zurich, Switzerland
| | - Angela Suppiger
- Department of Microbiology, University of Zurich, Zurich, Switzerland
| | - Michael Givskov
- Costerton Biofilm Center, Department of Immunology and Microbiology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.,Singapore Centre for Environmental Life Sciences Engineering, Nanyang Technological University, Singapore, Singapore
| | - Leo Eberl
- Department of Microbiology, University of Zurich, Zurich, Switzerland
| | - Tim Tolker-Nielsen
- Costerton Biofilm Center, Department of Immunology and Microbiology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| |
Collapse
|
13
|
El-Deeb NM, Yassin AM, Al-Madboly LA, El-Hawiet A. A novel purified Lactobacillus acidophilus 20079 exopolysaccharide, LA-EPS-20079, molecularly regulates both apoptotic and NF-κB inflammatory pathways in human colon cancer. Microb Cell Fact 2018; 17:29. [PMID: 29466981 PMCID: PMC5820793 DOI: 10.1186/s12934-018-0877-z] [Citation(s) in RCA: 90] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Accepted: 02/12/2018] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The direct link between inflammatory bowel diseases and colorectal cancer is well documented. Previous studies have reported that some lactic acid bacterial strains could inhibit colon cancer progression however; the exact molecules involved have not yet been identified. So, in the current study, we illustrated the tumor suppressive effects of the newly identified Lactobacillus acidophilus DSMZ 20079 cell-free pentasaccharide against colon cancer cells. The chemical structure of the purified pentasaccharide was investigated by MALDI-TOF mass spectrum, 1D and 2D Nuclear Magnetic Resonance (NMR). The anticancer potentiality of the purified pentasaccharide against both Human colon cancer (CaCo-2) and Human breast cancer (MCF7) cell lines with its safety usage pattern were evaluated using cytotoxicity, annexin V quantification and BrdU incorporation assays. Also, the immunomodulatory effects of the identified compound were quantified on both LPS-induced PBMC cell model and cancer cells with monitoring the immunophenotyping of T and dendritic cell surface marker. At molecular level, the alteration in gene expression of both inflammatory and apoptotic pathways were quantified upon pentasaccharide-cellular treatment by RTqPCR. RESULTS The obtained data of the spectroscopic analysis, confirmed the structure of the newly extracted pentasaccharide; (LA-EPS-20079) to be: α-D-Glc (1→2)][α-L-Fuc(1→4)] α-D-GlcA(1→2) α-D-GlcA(1→2) α-D-GlcA. This pentasaccharide, recorded safe dose on normal mammalian cells ranged from 2 to 5 mg/ml with cancer cells selectivity index, ranged of 1.96-51.3. Upon CaCo-2 cell treatment with the non-toxic dose of LA-EPS-20079, the inhibition percentage in CaCo-2 cellular viability, reached 80.65 with an increase in the ratio of the apoptotic cells in sub-G0/G1 cell cycle phase. Also, this pentasaccharide showed potentialities to up-regulate the expression of IKbα, P53 and TGF genes. CONCLUSION The anticancer potentialities of LA-EPS-20079 oligosaccharides against human colon cancer represented through its regulatory effects on both apoptotic and NF-κB inflammatory pathways.
Collapse
Affiliation(s)
- Nehal M El-Deeb
- Biopharmacetical Product Research Department, Genetic Engineering and Biotechnology Research Institute, City of Scientific Research and Technology Applications, New Borg El-Arab City, 21934, Alexandria, Egypt.
| | - Abdelrahman M Yassin
- Biopharmacetical Product Research Department, Genetic Engineering and Biotechnology Research Institute, City of Scientific Research and Technology Applications, New Borg El-Arab City, 21934, Alexandria, Egypt
| | - Lamiaa A Al-Madboly
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Tanta University, Tanta, 31527, Egypt.
| | - Amr El-Hawiet
- Department of Pharmacognosy, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| |
Collapse
|
14
|
Mangalea MR, Borlee GI, Borlee BR. The Current Status of Extracellular Polymeric Substances Produced by Burkholderia pseudomallei. CURRENT TROPICAL MEDICINE REPORTS 2017. [DOI: 10.1007/s40475-017-0118-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
15
|
Vinnitskiy DZ, Ustyuzhanina NE, Nifantiev NE. Natural bacterial and plant biomolecules bearing α-d-glucuronic acid residues. Russ Chem Bull 2016. [DOI: 10.1007/s11172-015-1010-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
|
16
|
Dolfi S, Sveronis A, Silipo A, Rizzo R, Cescutti P. A novel rhamno-mannan exopolysaccharide isolated from biofilms of Burkholderia multivorans C1576. Carbohydr Res 2015; 411:42-8. [PMID: 25974852 DOI: 10.1016/j.carres.2015.04.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Revised: 04/14/2015] [Accepted: 04/15/2015] [Indexed: 01/08/2023]
Abstract
Burkholderia multivorans C1576 is a Gram negative opportunistic pathogen causing serious lung infection in cystic fibrosis patients. Considering that bacteria naturally form biofilms, and exopolysaccharides are recognized as important factors for biofilm architecture set-up, B. multivorans was grown both in biofilm and in non-biofilm mode on two different media in order to compare the exopolysaccharides biosynthesized in these different experimental conditions. The exopolysaccharides produced were purified and their structure was determined resorting mainly to NMR spectroscopy, ESI mass spectrometry and gas chromatography coupled to mass spectrometry. The experimental data showed that both in biofilm and non-biofilm mode B. multivorans C1576 produced a novel exopolysaccharide having the following structure: [Formula: see text]. About 50% of the 2-linked rhamnose residues are substituted on C-3 with a methyl ether group. The high percentage of deoxysugar Rha units, coupled with OMe substitutions, suggest a possible role for polymer domains with marked hydrophobic characteristics able to create exopolysaccharide junction zones favouring the stability of the biofilm matrix.
Collapse
Affiliation(s)
- Stefania Dolfi
- Department of Life Sciences, Bldg C11, University of Trieste, Via Licio Giorgieri 1, 34127 Trieste, Italy
| | - Aris Sveronis
- Department of Life Sciences, Bldg C11, University of Trieste, Via Licio Giorgieri 1, 34127 Trieste, Italy
| | - Alba Silipo
- Department of Chemical Sciences, University of Naples "Federico II", Complesso Universitario Monte S. Angelo, Via Cintia 4, 80126 Napoli, Italy
| | - Roberto Rizzo
- Department of Life Sciences, Bldg C11, University of Trieste, Via Licio Giorgieri 1, 34127 Trieste, Italy
| | - Paola Cescutti
- Department of Life Sciences, Bldg C11, University of Trieste, Via Licio Giorgieri 1, 34127 Trieste, Italy.
| |
Collapse
|
17
|
Cuzzi B, Herasimenka Y, Silipo A, Lanzetta R, Liut G, Rizzo R, Cescutti P. Versatility of the Burkholderia cepacia complex for the biosynthesis of exopolysaccharides: a comparative structural investigation. PLoS One 2014; 9:e94372. [PMID: 24722641 PMCID: PMC3983119 DOI: 10.1371/journal.pone.0094372] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2013] [Accepted: 03/15/2014] [Indexed: 11/24/2022] Open
Abstract
The Burkholderia cepacia Complex assembles at least eighteen closely related species that are ubiquitous in nature. Some isolates show beneficial potential for biocontrol, bioremediation and plant growth promotion. On the contrary, other strains are pathogens for plants and immunocompromised individuals, like cystic fibrosis patients. In these subjects, they can cause respiratory tract infections sometimes characterised by fatal outcome. Most of the Burkholderia cepacia Complex species are mucoid when grown on a mannitol rich medium and they also form biofilms, two related characteristics, since polysaccharides are important component of biofilm matrices. Moreover, polysaccharides contribute to bacterial survival in a hostile environment by inhibiting both neutrophils chemotaxis and antimicrobial peptides activity, and by scavenging reactive oxygen species. The ability of these microorganisms to produce exopolysaccharides with different structures is testified by numerous articles in the literature. However, little is known about the type of polysaccharides produced in biofilms and their relationship with those obtained in non-biofilm conditions. The aim of this study was to define the type of exopolysaccharides produced by nine species of the Burkholderia cepacia Complex. Two isolates were then selected to compare the polysaccharides produced on agar plates with those formed in biofilms developed on cellulose membranes. The investigation was conducted using NMR spectroscopy, high performance size exclusion chromatography, and gas chromatography coupled to mass spectrometry. The results showed that the Complex is capable of producing a variety of exopolysaccharides, most often in mixture, and that the most common exopolysaccharide is always cepacian. In addition, two novel polysaccharide structures were determined: one composed of mannose and rhamnose and another containing galactose and glucuronic acid. Comparison of exopolysaccharides obtained from cultures on agar plates with those extracted from biofilms on cellulose membranes showed important differences, thus suggesting that extrapolating data from non-biofilm conditions might not always be applicable.
Collapse
Affiliation(s)
- Bruno Cuzzi
- Department of Life Sciences, University of Trieste, Trieste, Italy
| | - Yury Herasimenka
- Department of Life Sciences, University of Trieste, Trieste, Italy
| | - Alba Silipo
- Department of Chemical Sciences, University of Naples Federico II, Naples, Italy
| | - Rosa Lanzetta
- Department of Chemical Sciences, University of Naples Federico II, Naples, Italy
| | - Gianfranco Liut
- Department of Life Sciences, University of Trieste, Trieste, Italy
| | - Roberto Rizzo
- Department of Life Sciences, University of Trieste, Trieste, Italy
| | - Paola Cescutti
- Department of Life Sciences, University of Trieste, Trieste, Italy
| |
Collapse
|
18
|
Investigating the role of matrix components in protection of Burkholderia cepacia complex biofilms against tobramycin. J Cyst Fibros 2014; 13:56-62. [DOI: 10.1016/j.jcf.2013.07.004] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2013] [Revised: 07/04/2013] [Accepted: 07/20/2013] [Indexed: 11/21/2022]
|