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Kanwar K, Sharma D, Singh H, Pal M, Bandhu R, Azmi W. In vitro effects of alginate lyase SG4 + produced by Paenibacillus lautus alone and combined with antibiotics on biofilm formation by mucoid Pseudomonas aeruginosa. Braz J Microbiol 2024; 55:1189-1203. [PMID: 38705960 PMCID: PMC11153421 DOI: 10.1007/s42770-024-01334-w] [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: 12/08/2023] [Accepted: 04/03/2024] [Indexed: 05/07/2024] Open
Abstract
Alginate is a major extra polymeric substance in the biofilm formed by mucoid Pseudomonas aeruginosa. It is the main proven perpetrator of lung infections in patients suffering from cystic fibrosis. Alginate lyases are very important in the treatment of cystic fibrosis. This study evaluated the role of standalone and in conjugation, effect of alginate lyase of SG4 + isolated from Paenibacillus lautus in enhancing in vitro bactericidal activity of gentamicin and amikacin on mucoid P. aeruginosa. Using Response Surface Methodology (RSM) alginate lyase SG4 + production was optimized in shake flask and there 8.49-fold enhancement in enzyme production. In fermenter, maximum growth (10.15 mg/ml) and alginate lyase (1.46 International Units) production, 1.71-fold was increased using Central Composite Design (CCD). Further, fermentation time was reduced from 48 to 20 h. To the best of our knowledge this is the first report in which CCD was used for fermenter studies to optimize alginate lyase production. The Km and Vmax of purified enzyme were found to be 2.7 mg/ml and 0.84 mol/ml-min, respectively. The half-life (t 1/2) of purified alginate lyase SG4 + at 37 °C was 180 min. Alginate lyase SG4 + in combination with gentamicin and amikacin eradiated 48.4- 52.3% and 58- 64.6%, alginate biofilm formed by P. aeruginosa strains, respectively. The study proves that alginate lyase SG4 + has excellent exopolysaccharide disintegrating ability and may be useful in development of potent therapeutic agent to treat P. aeruginosa biofilms.
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Affiliation(s)
- Kriti Kanwar
- Department of Biotechnology, Himachal Pradesh University, Summerhill Shimla, H.P, 171005, India.
- Chandigarh Group of College, Landran, Kharar- Banur Highway, Sector 112, Greater Mohali, Panjab, 140307, India.
| | - Deepika Sharma
- Chandigarh Group of College, Landran, Kharar- Banur Highway, Sector 112, Greater Mohali, Panjab, 140307, India
| | - Harjodh Singh
- Chandigarh Group of College, Landran, Kharar- Banur Highway, Sector 112, Greater Mohali, Panjab, 140307, India
| | - Mohinder Pal
- Chandigarh Group of College, Landran, Kharar- Banur Highway, Sector 112, Greater Mohali, Panjab, 140307, India
| | - Rajneesh Bandhu
- Department of Biotechnology, Himachal Pradesh University, Summerhill Shimla, H.P, 171005, India
| | - Wamik Azmi
- Department of Biotechnology, Himachal Pradesh University, Summerhill Shimla, H.P, 171005, India.
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Li X, Yang M, Mo K, Hu Y, Gu H, Sun D, Bao S, Huang H. Genome Analysis of Multiple Polysaccharide-Degrading Bacterium Microbulbifer thermotolerans HB226069: Determination of Alginate Lyase Activity. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2024; 26:488-499. [PMID: 38668917 DOI: 10.1007/s10126-024-10311-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 04/05/2024] [Indexed: 06/15/2024]
Abstract
Polysaccharide-degrading bacteria are key participants in the global carbon cycle and algal biomass recycling. Herein, a polysaccharide lyase-producing strain HB226069 was isolated from Sargassum sp. from Qingge Port, Hainan, China. Results of the phylogenetic of the 16S rRNA gene and genotypic analysis indicated that the isolate should be classified as Microbulbifer thermotolerans. The whole genome is a 4,021,337 bp circular chromosome with a G+C content of 56.5%. Analysis of the predicted genes indicated that strain HB226069 encoded 161 carbohydrate-active enzymes (CAZymes), and abundant putative enzymes involved in polysaccharide degradation were predicted, including alginate lyase, fucosidase, agarase, xylanase, cellulase, pectate lyase, amylase, and chitinase. Three of the putative polysaccharide lyases from PL7 and PL17 families were involved in alginate degradation. The alginate lyases of strain HB226069 showed the maximum activity of 117.4 U/mL at 50 °C, pH 7.0, and 0.05 M FeCl3, while exhibiting the best stability at 30 °C and pH 7.0. The Thin Layer Chromatography (TLC) and Electrospray Ionization Mass Spectrometry (ESI-MS) analyses indicated that the alginate oligosaccharides (AOSs) degraded by the partially purified alginate lyases contained oligosaccharides of DP2-DP5 and monosaccharide while reacting for 36 h. The complete genome of M. thermotolerans HB226069 enriches our understanding of the mechanism of polysaccharide lyase production and supports its potential application in polysaccharide degradation.
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Affiliation(s)
- Xue Li
- College of Agriculture, Heilongjiang Bayi Agricultural University, Daqing, 163000, Heilongjiang, China
| | - Miao Yang
- Institute of Tropical Bioscience and Biotechnology, Hainan Institute for Tropical Agricultural Resources, CATAS, Haikou, 571101, Hainan, China
- College of Life Science and Technology, Huazhong Agricultural University, CATAS, Wuhan, 430070, Hubei, China
| | - Kunlian Mo
- Institute of Tropical Bioscience and Biotechnology, Hainan Institute for Tropical Agricultural Resources, CATAS, Haikou, 571101, Hainan, China
- Zhanjiang Experimental Station, CATAS, Zhanjiang, 524013, Guangdong, China
- Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bioresources, Haikou, 571101, Hainan, China
| | - Yonghua Hu
- Institute of Tropical Bioscience and Biotechnology, Hainan Institute for Tropical Agricultural Resources, CATAS, Haikou, 571101, Hainan, China
- Zhanjiang Experimental Station, CATAS, Zhanjiang, 524013, Guangdong, China
- Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bioresources, Haikou, 571101, Hainan, China
- Laboratory for Marine Biology and Biotechnology, Pilot National Laboratory for Marine Science and Technology, Qingdao, 266071, Shandong, China
| | - Hanjie Gu
- Institute of Tropical Bioscience and Biotechnology, Hainan Institute for Tropical Agricultural Resources, CATAS, Haikou, 571101, Hainan, China
- Zhanjiang Experimental Station, CATAS, Zhanjiang, 524013, Guangdong, China
- Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bioresources, Haikou, 571101, Hainan, China
| | - Dongmei Sun
- College of Agriculture, Heilongjiang Bayi Agricultural University, Daqing, 163000, Heilongjiang, China.
| | - Shixiang Bao
- Institute of Tropical Bioscience and Biotechnology, Hainan Institute for Tropical Agricultural Resources, CATAS, Haikou, 571101, Hainan, China.
- Zhanjiang Experimental Station, CATAS, Zhanjiang, 524013, Guangdong, China.
- Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bioresources, Haikou, 571101, Hainan, China.
| | - Huiqin Huang
- Institute of Tropical Bioscience and Biotechnology, Hainan Institute for Tropical Agricultural Resources, CATAS, Haikou, 571101, Hainan, China.
- Zhanjiang Experimental Station, CATAS, Zhanjiang, 524013, Guangdong, China.
- Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bioresources, Haikou, 571101, Hainan, China.
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Hassan S, Rezaei Z, Luna E, Yilmaz-Aykut D, Lee MC, Perea AM, Jamaiyar A, Bassous N, Hirano M, Tourk FM, Choi C, Becker M, Yazdi I, Fan K, Avila-Ramirez AE, Ge D, Abdi R, Fisch S, Leijten J, Feinberg MW, Mandal BB, Liao R, Shin SR. Injectable Self-Oxygenating Cardio-Protective and Tissue Adhesive Silk-Based Hydrogel for Alleviating Ischemia After Mi Injury. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2312261. [PMID: 38733225 DOI: 10.1002/smll.202312261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 04/23/2024] [Indexed: 05/13/2024]
Abstract
Myocardial infarction (MI) is a significant cardiovascular disease that restricts blood flow, resulting in massive cell death and leading to stiff and noncontractile fibrotic scar tissue formation. Recently, sustained oxygen release in the MI area has shown regeneration ability; however, improving its therapeutic efficiency for regenerative medicine remains challenging. Here, a combinatorial strategy for cardiac repair by developing cardioprotective and oxygenating hybrid hydrogels that locally sustain the release of stromal cell-derived factor-1 alpha (SDF) and oxygen for simultaneous activation of neovascularization at the infarct area is presented. A sustained release of oxygen and SDF from injectable, mechanically robust, and tissue-adhesive silk-based hybrid hydrogels is achieved. Enhanced endothelialization under normoxia and anoxia is observed. Furthermore, there is a marked improvement in vascularization that leads to an increment in cardiomyocyte survival by ≈30% and a reduction of the fibrotic scar formation in an MI animal rodent model. Improved left ventricular systolic and diastolic functions by ≈10% and 20%, respectively, with a ≈25% higher ejection fraction on day 7 are also observed. Therefore, local delivery of therapeutic oxygenating and cardioprotective hydrogels demonstrates beneficial effects on cardiac functional recovery for reparative therapy.
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Affiliation(s)
- Shabir Hassan
- Division of Engineering in Medicine, Brigham and Women's Hospital, Department of Medicine, Harvard Medical School, 65 Landsdowne St, Cambridge, 02139, United States
- Department of Biological Sciences, Khalifa University, Shakhbout Bin Sultan St, Abu Dhabi, 127788, United Arab Emirates
- Biotechnology Center (BTC), Khalifa University, Shakhbout Bin Sultan St, Abu Dhabi, 127788, United Arab Emirates
| | - Zahra Rezaei
- Division of Engineering in Medicine, Brigham and Women's Hospital, Department of Medicine, Harvard Medical School, 65 Landsdowne St, Cambridge, 02139, United States
- Department of Chemical Engineering, Sharif University of Technology, Tehran, 1365-11155, Iran
| | - Eder Luna
- Division of Engineering in Medicine, Brigham and Women's Hospital, Department of Medicine, Harvard Medical School, 65 Landsdowne St, Cambridge, 02139, United States
| | - Dilara Yilmaz-Aykut
- Division of Engineering in Medicine, Brigham and Women's Hospital, Department of Medicine, Harvard Medical School, 65 Landsdowne St, Cambridge, 02139, United States
- Department of Chemical Engineering, Faculty of Engineering, Istanbul University-Cerrahpaşa, Istanbul, 34320, Turkey
| | - Myung Chul Lee
- Division of Engineering in Medicine, Brigham and Women's Hospital, Department of Medicine, Harvard Medical School, 65 Landsdowne St, Cambridge, 02139, United States
- Biomedical Research Division, Medicinal Materials Research Center, Korea Institute of Science and Technology (KIST), Seoul, South Korea
| | - Ana Marie Perea
- Division of Engineering in Medicine, Brigham and Women's Hospital, Department of Medicine, Harvard Medical School, 65 Landsdowne St, Cambridge, 02139, United States
- School of Science and Engineering, Technologico de Monterrey, Monterrey, Mexico
| | - Anurag Jamaiyar
- Division of Cardiovascular Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | - Nicole Bassous
- Division of Engineering in Medicine, Brigham and Women's Hospital, Department of Medicine, Harvard Medical School, 65 Landsdowne St, Cambridge, 02139, United States
| | - Minoru Hirano
- Division of Engineering in Medicine, Brigham and Women's Hospital, Department of Medicine, Harvard Medical School, 65 Landsdowne St, Cambridge, 02139, United States
- Future Vehicle Research Department, Toyota Research Institute North America, Toyota Motor North America, Inc., 1555 Woodridge Ave., Ann Arbor, MI, 48105, USA
| | - Fatima Mumtaza Tourk
- Division of Engineering in Medicine, Brigham and Women's Hospital, Department of Medicine, Harvard Medical School, 65 Landsdowne St, Cambridge, 02139, United States
- Department of Mechanical Engineering, Northeastern University, Boston, MA, 02115, USA
| | - Cholong Choi
- Division of Engineering in Medicine, Brigham and Women's Hospital, Department of Medicine, Harvard Medical School, 65 Landsdowne St, Cambridge, 02139, United States
| | - Malin Becker
- Department of BioEngineering Technologies, Faculty of Science and Technology, Technical Medical Centre, University of Twente, Drienerlolaan 5, Enschede, 7522 NB, The Netherlands
| | - Iman Yazdi
- School of Arts and Sciences, Regis College, 235 Wellesley Street, Weston, MA, 02493, USA
| | - Kai Fan
- Division of Engineering in Medicine, Brigham and Women's Hospital, Department of Medicine, Harvard Medical School, 65 Landsdowne St, Cambridge, 02139, United States
- School of Automation, Hangzhou Dianzi, Hangzhou, Zhejiang, 310018, China
| | - Alan Eduardo Avila-Ramirez
- Division of Engineering in Medicine, Brigham and Women's Hospital, Department of Medicine, Harvard Medical School, 65 Landsdowne St, Cambridge, 02139, United States
- Division of Biological and Environmental Science Engineering (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - David Ge
- Division of Engineering in Medicine, Brigham and Women's Hospital, Department of Medicine, Harvard Medical School, 65 Landsdowne St, Cambridge, 02139, United States
| | - Reza Abdi
- Transplantation Research Center, Renal Division, Brigham and Women's Hospital / Harvard Medical School, Boston, MA, 02115, USA
| | - Sudeshna Fisch
- Division of Cardiovascular Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | - Jeroen Leijten
- Department of BioEngineering Technologies, Faculty of Science and Technology, Technical Medical Centre, University of Twente, Drienerlolaan 5, Enschede, 7522 NB, The Netherlands
| | - Mark W Feinberg
- Division of Cardiovascular Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | - Biman B Mandal
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, 781039, India
- Center for nanotechnology, Indian Institute of Technology Guwahati (IITG), Guwahati, Assam, 781039, India
- Jyoti and Bhupat Mehta School of health Sciences and Technology, Indian Institute of Technology Guwahati (IITG), Guwahati, Assam, 781039, India
| | - Ronglih Liao
- School of Medicine, Stanford University, Stanford, CA, 94305-5101, USA
- Stanford Amyloid Center, Stanford University, Stanford, CA, 94305-5101, USA
| | - Su Ryon Shin
- Division of Engineering in Medicine, Brigham and Women's Hospital, Department of Medicine, Harvard Medical School, 65 Landsdowne St, Cambridge, 02139, United States
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Sahu S, Sharma S, Kaur A, Singh G, Khatri M, Arya SK. Algal carbohydrate polymers: Catalytic innovations for sustainable development. Carbohydr Polym 2024; 327:121691. [PMID: 38171696 DOI: 10.1016/j.carbpol.2023.121691] [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: 10/23/2023] [Revised: 12/04/2023] [Accepted: 12/11/2023] [Indexed: 01/05/2024]
Abstract
Algal polysaccharides, harnessed for their catalytic potential, embody a compelling narrative in sustainable chemistry. This review explores the complex domains of algal carbohydrate-based catalysis, revealing its diverse trajectory. Starting with algal polysaccharide synthesis and characterization methods as catalysts, the investigation includes sophisticated techniques like NMR spectroscopy that provide deep insights into the structural variety of these materials. Algal polysaccharides undergo various preparation and modification techniques to enhance their catalytic activity such as immobilization. Homogeneous catalysis, revealing its significance in practical applications like crafting organic compounds and facilitating chemical transformations. Recent studies showcase how algal-derived catalysts prove to be remarkably versatile, showcasing their ability to customise reactions for specific substances. Heterogeneous catalysis, it highlights the significance of immobilization techniques, playing a central role in ensuring stability and the ability to reuse catalysts. The practical applications of heterogeneous algal catalysts in converting biomass and breaking down contaminants, supported by real-life case studies, emphasize their effectiveness. In sustainable chemistry, algal polysaccharides emerge as compelling catalysts, offering a unique intersection of eco-friendliness, structural diversity, and versatile catalytic properties. Tackling challenges such as dealing with complex structural variations, ensuring the stability of the catalyst, and addressing economic considerations calls for out-of-the-box and inventive solutions. Embracing the circular economy mindset not only assures sustainable catalyst design but also promotes efficient recycling practices. The use of algal carbohydrates in catalysis stands out as a source of optimism, paving the way for a future where chemistry aligns seamlessly with nature, guiding us toward a sustainable, eco-friendly, and thriving tomorrow. This review encapsulates-structural insights, catalytic applications, challenges, and future perspectives-invoking a call for collective commitment to catalyze a sustainable scientific revolution.
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Affiliation(s)
- Sudarshan Sahu
- Department of Biotechnology Engineering, University Institute of Engineering & Technology, Panjab University, Chandigarh, India
| | - Shalini Sharma
- Department of Biotechnology Engineering, University Institute of Engineering & Technology, Panjab University, Chandigarh, India
| | - Anupreet Kaur
- Department of Biotechnology Engineering, University Institute of Engineering & Technology, Panjab University, Chandigarh, India
| | - Gursharan Singh
- Department of Medical Laboratory Sciences, Lovely Professional University, Phagwara 144411, Punjab, India
| | - Madhu Khatri
- Department of Biotechnology Engineering, University Institute of Engineering & Technology, Panjab University, Chandigarh, India
| | - Shailendra Kumar Arya
- Department of Biotechnology Engineering, University Institute of Engineering & Technology, Panjab University, Chandigarh, India.
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Li L, Cao S, Zhu B, Yao Z, Zhu B, Qin Y, Jiang J. Efficient Degradation of Alginate and Preparation of Alginate Oligosaccharides by a Novel Biofunctional Alginate Lyase with High Activity and Excellent Thermophilic Features. Mar Drugs 2023; 21:md21030180. [PMID: 36976229 PMCID: PMC10056287 DOI: 10.3390/md21030180] [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: 02/26/2023] [Revised: 03/11/2023] [Accepted: 03/13/2023] [Indexed: 03/17/2023] Open
Abstract
The enzymatic degradation of seaweed polysaccharides is gaining interest for its potential in the production of functional oligosaccharides and fermentable sugars. Herein, a novel alginate lyase, AlyRm3, was cloned from a marine strain, Rhodothermus marinus DSM 4252. The AlyRm3 showed optimal activity (37,315.08 U/mg) at 70 °C and pH 8.0, with the sodium alginate used as a substrate. Noticeably, AlyRm3 was stable at 65 °C and also exhibited 30% of maximal activity at 90 °C. These results indicated that AlyRm3 is a thermophilic alginate lyase that efficiently degrades alginate at high industrial temperatures (>60 °C). The FPLC and ESI−MS analyses suggested that AlyRm3 primarily released disaccharides and trisaccharides from the alginate, polyM, and polyG in an endolytic manner. In the saccharification process of sodium alginate (0.5%, w/v), the AlyRm3 yielded numerous reducing sugars (1.73 g/L) after 2 h of reaction. These results indicated that AlyRm3 has a high enzymatic capacity for saccharifying the alginate, and could be used to saccharify the alginate biomass before the main fermentation process for biofuels. These properties make AlyRm3 a valuable candidate for both fundamental research and industrial applications.
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Affiliation(s)
- Li Li
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, China
| | - Shengsheng Cao
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, China
| | - Benwei Zhu
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, China
- Correspondence:
| | - Zhong Yao
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, China
| | - Bo Zhu
- Key Laboratory of Seaweed Fertilizers, Ministry of Agriculture and Rural Affairs, Qingdao Brightmoon Seaweed Group Co., Ltd., Qingdao 266400, China
| | - Yimin Qin
- Key Laboratory of Seaweed Fertilizers, Ministry of Agriculture and Rural Affairs, Qingdao Brightmoon Seaweed Group Co., Ltd., Qingdao 266400, China
| | - Jinju Jiang
- Key Laboratory of Seaweed Fertilizers, Ministry of Agriculture and Rural Affairs, Qingdao Brightmoon Seaweed Group Co., Ltd., Qingdao 266400, China
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