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Abu-Tahon MA, Alshammari FA, Shahhat IM, Ghareib M, Abdallah WE. Eco-Friendly Synthesis, Characterization, and Biomedical Applications of Biosynthesized Bimetallic Silver-Gold Nanoparticles by Culture Supernatant of Aspergillus niger. Appl Biochem Biotechnol 2024:10.1007/s12010-024-05035-w. [PMID: 39106026 DOI: 10.1007/s12010-024-05035-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/23/2024] [Indexed: 08/07/2024]
Abstract
Green synthesis of bimetallic nanoparticles of noble metals is highly desirable in nanomedicine because of their potential use as anticoagulant, thrombolytic and anticancer agents. In this study, it was discovered that the filamentous fungus Aspergillus niger proved effective in producing bimetallic Ag-Au nanoparticles. A. niger culture supernatant was able to produce Ag-AuNPs by reducing the solution of chloroauric acid/silver nitrate (1.0:1.0 mM) within 2 min at 100 °C and pH 8. Experimental Ag-AuNP detection was performed by visually observing the color change to reddish brown. The produced nanoparticles displayed maximal absorbance at 530 nm in UV-vis spectroscopy. According to transmission electron microscopy, most of the nanoparticles were spherical, with a mean diameter of 8-10 nm. The biosynthesis of Ag-AuNPs by A. niger was confirmed by Fourier transform infrared spectroscopy, X-ray diffraction and energy dispersive X-ray analytical techniques. Its zeta potential was discovered to be -34.01 mV. The biosynthesized Ag-AuNPs exhibited effective thrombolytic and antiplatelet aggregation actions by totally preventing and dissolving the blood clot which was verified by microscopic examination, amelioration of blood coagulation assays, and carrageenan-induced tail thrombosis model. The findings verified the effectiveness of biosynthesized Ag-AuNPs as a powerful antitumor agent against HepG2 and A549 cell lines with IC50 values of 15.57 and 27.07 μg/mL, respectively. Crystal violet assay validated the cytopathic effects of Ag-AuNPs on A549 and HepG2 cell lines. Therefore, the produced Ag-AuNPs from A. niger are a promising candidate in the management of thrombosis.
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Affiliation(s)
- Medhat Ahmed Abu-Tahon
- Department of Biology, Faculty of Science and Arts, Northern Border University, Rafha, Saudi Arabia.
- Biological and Geological Sciences Department, Faculty of Education, Ain Shams University, Roxy, Heliopolis, Cairo, P.C.11757, Egypt.
| | - Fahdah Ayed Alshammari
- Department of Biology, Faculty of Science, Northern Border University, Arar, Saudi Arabia
| | - Ismail Mahmoud Shahhat
- Department of Biology, Faculty of Science, Northern Border University, Arar, Saudi Arabia
- Egyptian Drug Authority, Cairo, Egypt
| | - Mohamed Ghareib
- Biological and Geological Sciences Department, Faculty of Education, Ain Shams University, Roxy, Heliopolis, Cairo, P.C.11757, Egypt
| | - Wafaa E Abdallah
- Biological and Geological Sciences Department, Faculty of Education, Ain Shams University, Roxy, Heliopolis, Cairo, P.C.11757, Egypt
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Ma Z, Elango J, Hao J, Wu W. Purification and Characterization of a Novel Fibrinolytic Enzyme from Marine Bacterium Bacillus sp. S-3685 Isolated from the South China Sea. Mar Drugs 2024; 22:267. [PMID: 38921578 PMCID: PMC11204972 DOI: 10.3390/md22060267] [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: 05/10/2024] [Revised: 06/09/2024] [Accepted: 06/09/2024] [Indexed: 06/27/2024] Open
Abstract
A novel fibrinolytic enzyme, BSFE1, was isolated from the marine bacterium Bacillus sp. S-3685 (GenBank No.: KJ023685) found in the South China Sea. This enzyme, with a molecular weight of approximately 42 kDa and a specific activity of 736.4 U/mg, exhibited its highest activity at 37 °C in a phosphate buffer at pH 8.0. The fibrinolytic enzyme remained stable over a pH range of 7.5 to 10.0 and retained about 76% of its activity after being incubated at 37 °C for 2 h. The Km and Vmax values of the enzyme at 37 °C were determined to be 2.1 μM and 49.0 μmol min-1 mg-1, respectively. The fibrinolytic activity of BSFE1 was enhanced by Na+, Ba2+, K+, Co2+, Mn2+, Al3+, and Cu2+, while it was inhibited by Fe3+, Ca2+, Mg2+, Zn2+, and Fe2+. These findings indicate that the fibrinolytic enzyme isolated in this study exhibits a strong affinity for fibrin. Moreover, the enzyme we have purified demonstrates thrombolytic enzymatic activity. These characteristics make BSFE1 a promising candidate for thrombolytic therapy. In conclusion, the results obtained from this study suggest that our work holds potential in the development of agents for thrombolytic treatment.
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Affiliation(s)
- Zibin Ma
- School of Agriculture and Bioengineering, Taizhou Vocational College of Science & Technology, Taizhou 318020, China;
| | - Jeevithan Elango
- Department of Marine Biopharmacology, College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China;
- Center of Molecular Medicine and Diagnostics (COMManD), Department of Biochemistry, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai 600 077, India
- Department of Biomaterials Engineering, Faculty of Health Sciences, UCAM Universidad Católica San Antonio de Murcia, Guadalupe, 30107 Murcia, Spain
| | - Jianhua Hao
- Key Laboratory of Sustainable Development of Polar Fishery, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China
| | - Wenhui Wu
- Department of Marine Biopharmacology, College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China;
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Wang J, Liu X, Jing Y, Zheng X. Purification and Biochemical Characterization of a Novel Fibrinolytic Enzyme from Culture Supernatant of Coprinus comatus. Foods 2024; 13:1292. [PMID: 38731663 PMCID: PMC11083162 DOI: 10.3390/foods13091292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 04/19/2024] [Accepted: 04/20/2024] [Indexed: 05/13/2024] Open
Abstract
A novel fibrinolytic enzyme was produced by the liquid fermentation of Coprinus comatus. The enzyme was purified from the culture supernatant by hydrophobic interactions, gel filtration, and ion exchange chromatographies. It was purified by 241.02-fold, with a specific activity of 3619 U/mg and a final yield of 10.02%. SDS-PAGE analysis confirmed the purity of the enzyme, showing a single band with a molecular weight of 19.5 kDa. The first nine amino acids of the N-terminal of the purified enzyme were A-T-Y-T-G-G-S-Q-T. The enzyme exhibited optimal activity at a temperature of 42 °C and pH 7.6. Its activity was significantly improved by Zn2+, K+, Ca2+, Mn2+, and Mg2+ while being inhibited by Fe2+, Fe3+, Al2+, and Ba2+. The activity of the enzyme was completely inhibited by ethylenediamine tetraacetic acid (EDTA), and it was also dose-dependently inhibited by phenylmethylsulfonyl fluoride (PMSF) and soy trypsin inhibitor (SBTI). However, inhibitors such as N-α-tosyl-L-phenylalanine chloromethyl ketone (TPCK), aprotinin, and pepstatin did not significantly affect its activity, suggesting that the enzyme was a serine-like metalloproteinase. The enzyme acted as both a plasmin-like fibrinolytic enzyme and a plasminogen activator, and it also exhibited the capability to hydrolyze fibrinogen and fibrin. In vitro, it demonstrated the ability to dissolve blood clots and exhibit anticoagulant properties. Furthermore, it was found that the enzyme prolonged activated partial thromboplastin time (APTT), prothrombin time (PT), and thrombin time (TT), and reduced the levels of fibrinogen (FIB) and prothrombin activity (PA). Based on these studies, the enzyme has great potential to be developed as a natural agent for the prevention and treatment of thrombotic diseases.
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Affiliation(s)
- Jinyu Wang
- College of Food Engineering, Harbin University of Commerce, Harbin 150076, China;
- Key Laboratory of Corn Deep Processing Theory and Technology of Heilongjiang Province, College of Food and Bioengineering, Qiqihar University, Qiqihar 161006, China; (Y.J.); (X.Z.)
| | - Xiaolan Liu
- College of Food Engineering, Harbin University of Commerce, Harbin 150076, China;
- Key Laboratory of Corn Deep Processing Theory and Technology of Heilongjiang Province, College of Food and Bioengineering, Qiqihar University, Qiqihar 161006, China; (Y.J.); (X.Z.)
- College of Food, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - Yan Jing
- Key Laboratory of Corn Deep Processing Theory and Technology of Heilongjiang Province, College of Food and Bioengineering, Qiqihar University, Qiqihar 161006, China; (Y.J.); (X.Z.)
| | - Xiqun Zheng
- Key Laboratory of Corn Deep Processing Theory and Technology of Heilongjiang Province, College of Food and Bioengineering, Qiqihar University, Qiqihar 161006, China; (Y.J.); (X.Z.)
- College of Food, Heilongjiang Bayi Agricultural University, Daqing 163319, China
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Cheng S, Yuan L, Li-Gao R, Chen S, Li H, Du M. Nutrition and Cardiovascular Disease: The Potential Role of Marine Bioactive Proteins and Peptides in Thrombosis Prevention. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:6815-6832. [PMID: 38523314 DOI: 10.1021/acs.jafc.3c08850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/26/2024]
Abstract
Thrombus and cardiovascular diseases pose a significant health threat, and dietary interventions have shown promising potential in reducing the incidence of these diseases. Marine bioactive proteins and peptides have been extensively studied for their antithrombotic properties. They can inhibit platelet activation and aggregation by binding to key receptors on the platelet surface. Additionally, they can competitively anchor to critical enzyme sites, leading to the inhibition of coagulation factors. Marine microorganisms also offer alternative sources for the development of novel fibrinolytic proteins, which can help dissolve blood clots. The advancements in technologies, such as targeted hydrolysis, specific purification, and encapsulation, have provided a solid foundation for the industrialization of bioactive peptides. These techniques enable precise control over the production and delivery of bioactive peptides, enhancing their efficacy and safety. However, it is important to note that further research and clinical studies are needed to fully understand the mechanisms of action and therapeutic potential of marine bioactive proteins and peptides in mitigating thrombotic events. The challenges and future application perspectives of these bioactive peptides also need to be explored.
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Affiliation(s)
- Shuzhen Cheng
- SKL of Marine Food Processing & Safety Control, School of Food Science and Technology, Dalian Polytechnic University, Dalian, Liaoning 116034, People's Republic of China
- National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian, Liaoning 116034, People's Republic of China
| | - Lushun Yuan
- Department of Vascular Surgery, Shanghai General Hospital, Shanghai Jiao Tong University, Shanghai 201620, People's Republic of China
| | - Ruifang Li-Gao
- Department of Clinical Epidemiology, Leiden University Medical Centre, 2333 ZA Leiden, Netherlands
| | - Siru Chen
- SKL of Marine Food Processing & Safety Control, School of Food Science and Technology, Dalian Polytechnic University, Dalian, Liaoning 116034, People's Republic of China
- National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian, Liaoning 116034, People's Republic of China
| | - Han Li
- SKL of Marine Food Processing & Safety Control, School of Food Science and Technology, Dalian Polytechnic University, Dalian, Liaoning 116034, People's Republic of China
- National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian, Liaoning 116034, People's Republic of China
| | - Ming Du
- SKL of Marine Food Processing & Safety Control, School of Food Science and Technology, Dalian Polytechnic University, Dalian, Liaoning 116034, People's Republic of China
- National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian, Liaoning 116034, People's Republic of China
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Hazare C, Bhagwat P, Singh S, Pillai S. Diverse origins of fibrinolytic enzymes: A comprehensive review. Heliyon 2024; 10:e26668. [PMID: 38434287 PMCID: PMC10907686 DOI: 10.1016/j.heliyon.2024.e26668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Accepted: 02/16/2024] [Indexed: 03/05/2024] Open
Abstract
Fibrinolytic enzymes cleave fibrin which plays a crucial role in thrombus formation which otherwise leads to cardiovascular diseases. While different fibrinolytic enzymes have been purified, only a few have been utilized as clinical and therapeutic agents; hence, the search continues for a fibrinolytic enzyme with high specificity, fewer side effects, and one that can be mass-produced at a lower cost with a higher yield. In this context, this review discusses the physiological mechanism of thrombus formation and fibrinolysis, and current thrombolytic drugs in use. Additionally, an overview of the optimization, production, and purification of fibrinolytic enzymes and the role of Artificial Intelligence (AI) in optimization and the patents granted is provided. This review classifies microbial as well as non-microbial fibrinolytic enzymes isolated from food sources, including fermented foods and non-food sources, highlighting their advantages and disadvantages. Despite holding immense potential for the discovery of novel fibrinolytic enzymes, only a few fermented food sources limited to Asian countries have been studied, necessitating the research on fibrinolytic enzymes from fermented foods of other regions. This review will aid researchers in selecting optimal sources for screening fibrinolytic enzymes and is the first one to provide insights and draw a link between the implication of source selection and in vivo application.
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Affiliation(s)
- Chinmay Hazare
- Department of Biotechnology and Food Science, Faculty of Applied Sciences, University of Technology, P.O. Box 1334, Durban, 4000, South AfricaDurban
| | - Prashant Bhagwat
- Department of Biotechnology and Food Science, Faculty of Applied Sciences, University of Technology, P.O. Box 1334, Durban, 4000, South AfricaDurban
| | - Suren Singh
- Department of Biotechnology and Food Science, Faculty of Applied Sciences, University of Technology, P.O. Box 1334, Durban, 4000, South AfricaDurban
| | - Santhosh Pillai
- Department of Biotechnology and Food Science, Faculty of Applied Sciences, University of Technology, P.O. Box 1334, Durban, 4000, South AfricaDurban
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Jiang H, Shi R, Li X, Tang J, Min D. Insight into the thrombolytic ability of an extracellular fibrinolytic enzyme from Bacillus amyloliquefaciens GXU-1 isolated from Sipunculus nudus. Protein Expr Purif 2024; 213:106371. [PMID: 37709210 DOI: 10.1016/j.pep.2023.106371] [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: 05/18/2023] [Revised: 09/04/2023] [Accepted: 09/10/2023] [Indexed: 09/16/2023]
Abstract
Bacterial fibrinolytic enzymes have an important role in thrombolytic therapy due to their ability to dissolve fibrin. Therefore, purification, characterization and activity determination are of prime importance for bacterial fibrinolytic enzymes. In the current study, marine Bacillus amyloliquefaciens was first screened from Sipunculus nudus living in the Beibu Gulf of China and denoted as Guangxi University-1 (GXU-1). Then, an extracellular fibrinolytic enzyme (FEB-1) was purified from GXU-1 using ammonium sulfate precipitation, hydrophobic chromatography and gel filtration chromatography. The specific activity of FEB-1 was determined to be as high as 6789.74 U/mg. The relative molecular weight of FEB-1 was measured as 30 kDa through SDS‒PAGE. The optimum in vitro fibrinolytic activity of FEB-1 was identified at 37 °C and pH = 8. Furthermore, the activity of FEB-1 can be well preserved at 20-45 °C and pH = 6.0 to 9.0. The combination analysis of SDS‒PAGE and the molecular docking calculation revealed that FEB-1 can cleave more Aα- and Bβ-chains of fibrinogen than γ-chain. It is noteworthy that FEB-1 is comparatively stable under human-body environmental conditions, indicating its potential application in thrombosis therapy.
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Affiliation(s)
- Hongrui Jiang
- College of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, China
| | - Ruiyuan Shi
- College of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, China
| | - Xiaomei Li
- College of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, China
| | - Jiale Tang
- College of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, China
| | - Douyong Min
- College of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, China.
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7
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Kharnaior P, Tamang JP. Microbiome and metabolome in home-made fermented soybean foods of India revealed by metagenome-assembled genomes and metabolomics. Int J Food Microbiol 2023; 407:110417. [PMID: 37774634 DOI: 10.1016/j.ijfoodmicro.2023.110417] [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: 08/08/2023] [Revised: 09/10/2023] [Accepted: 09/22/2023] [Indexed: 10/01/2023]
Abstract
Grep-chhurpi, peha, peron namsing and peruñyaan are lesser-known home-made fermented soybean foods prepared by the native people of Arunachal Pradesh in India. Present work aims to study the microbiome, their functional annotations, metabolites and recovery of metagenome-assembled genomes (MAGs) in these four fermented soybean foods. Metagenomes revealed the dominance of bacteria (97.80 %) with minor traces of viruses, eukaryotes and archaea. Bacillota is the most abundant phylum with Bacillus subtilis as the abundant species. Metagenome also revealed the abundance of lactic acid bacteria such as Enterococcus casseliflavus, Enterococcus faecium, Mammaliicoccus sciuri and Staphylococcus saprophyticus in all samples. B. subtilis was the major species found in all products. Predictive metabolic pathways showed the abundance of genes associated with metabolisms. Metabolomics analysis revealed both targeted and untargeted metabolites, which suggested their role in flavour development and therapeutic properties. High-quality MAGs, identified as B. subtilis, Enterococcus faecalis, Pediococcus acidilactici and B. velezensis, showed the presence of several biomarkers corresponding to various bio-functional properties. Gene clusters of secondary metabolites (antimicrobial peptides) and CRISPR-Cas systems were detected in all MAGs. This present work also provides key elements related to the cultivability of identified species of MAGs for future use as starter cultures in fermented soybean food product development. Additionally, comparison of microbiome and metabolites of grep-chhurpi, peron namsing and peruñyaan with that of other fermented soybean foods of Asia revealed a distinct difference.
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Affiliation(s)
- Pynhunlang Kharnaior
- Department of Microbiology, Sikkim University, Science Building, Tadong 737102, Gangtok, Sikkim, India
| | - Jyoti Prakash Tamang
- Department of Microbiology, Sikkim University, Science Building, Tadong 737102, Gangtok, Sikkim, India.
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8
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Abu-Tahon MA, Abdel-Majeed AM, Ghareib M, Housseiny MM, Abdallah WE. Thrombolytic and anticoagulant efficiencies of purified fibrinolytic enzyme produced from Cochliobolus hawaiiensis under solid-state fermentation. Biotechnol Appl Biochem 2023; 70:1954-1971. [PMID: 37463837 DOI: 10.1002/bab.2502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Accepted: 06/15/2023] [Indexed: 07/20/2023]
Abstract
Cochliobolus hawaiiensis Alcorn Assiut University Mycological Centre 8606 was chosen from the screened 20 fungal species as the potent producer of fibrinolytic enzyme on skimmed-milk agar plates. The greatest enzyme yield was attained when the submerged fermentation (SmF) conditions were optimized, and it was around (39.7 U/mg protein). Moreover, upon optimization of fibrinolytic enzyme production under solid-state fermentation (SSF), the maximum productivity of fibrinolytic enzyme was greatly increased recorded a bout (405 U/mg protein) on sugarcane bagasse, incubation period of 5 days, moisture level of 100%, initial pH of salt basal medium 7.8, incubation temperature at 35°C, and supplementation of the salt basal medium with corn steep liquor (80%, v/v). The yield of fibrinolytic enzyme by C. hawaiiensis under SSF was higher than that of SmF with about 10.20-fold. The purification procedures of fibrinolytic enzyme by ammonium sulfate (70%), gel filtration, and ion-exchange columns chromatography caused a great increase in its specific activity to 2581.6 U/mg protein with an overall yield of 55.89%, 6.37 purification fold and molecular weight of 35 kDa. Maximal activity was recorded at pH 7 and 37°C. Significant pH stability was recorded at pH 6.6-7.2, and thermal stability was recorded at 33-41°C. The enzyme showed the highest affinity toward fibrin, with Vmax of 240 U/mL and an apparent Km value of 47.61 mmol. Mg2+ and Ca2+ moderately induced fibrinolytic activity, whereas Cu2+ and Zn2+ greatly suppressed the enzyme activity. The produced enzyme is categorized as serine protease and non-metalloprotease. The purified fibrinolytic enzyme showed efficient thrombolytic and antiplatelet aggregation activities by completely prevention and dissolution of the blood clot which confirmed by microscopic examination and amelioration of blood coagulation assays. These findings suggested that the produced fibrinolytic enzyme is a promising agent in management of blood coagulation disorders.
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Affiliation(s)
- Medhat Ahmed Abu-Tahon
- Department of Biology, Faculty of Science and Arts, Northern Border University, Rafha, Saudi Arabia
- Biological and Geological Sciences Department, Faculty of Education, Ain Shams University, Roxy, Heliopolis, Cairo, Egypt
| | - Ahmad Mohammad Abdel-Majeed
- Department of Biology, Faculty of Science and Arts, Northern Border University, Rafha, Saudi Arabia
- Department of zoology, Faculty of Science, Minia University, Minya City, Egypt
| | - Mohamed Ghareib
- Biological and Geological Sciences Department, Faculty of Education, Ain Shams University, Roxy, Heliopolis, Cairo, Egypt
| | - Manal Maher Housseiny
- Biological and Geological Sciences Department, Faculty of Education, Ain Shams University, Roxy, Heliopolis, Cairo, Egypt
| | - Wafaa E Abdallah
- Biological and Geological Sciences Department, Faculty of Education, Ain Shams University, Roxy, Heliopolis, Cairo, Egypt
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Moharam ME, El-Bendary MA, Abo Elsoud MM, Beih FE, Hassnin SM, Salama A, Omara EA, Elgamal NN. Modeling and in- vivo evaluation of fibrinolytic enzyme produced by Bacillus subtilis Egy under solid state fermentation. Heliyon 2023; 9:e16254. [PMID: 37251871 PMCID: PMC10220232 DOI: 10.1016/j.heliyon.2023.e16254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 05/07/2023] [Accepted: 05/10/2023] [Indexed: 05/31/2023] Open
Abstract
Blood clot formation increases cases of myocardial infarction (AMI) and stroke, thus urges directing much research works for treatment and prevention of the causes. One of these directions is the microbial production of fibrinolytic enzymes as thrombolytic agents. In the current work, Bacillus subtilis Egy has been used for enzyme production under solid state fermentation. Among twelve nutrient meals in addition to wheat bran as a control fodder yeast yielded the highest enzyme activity reaching 114U/g. Applying statistical model for optimization of enzyme production revealed that 3.6%, fodder yeast; 40%, moisture content; 6 days, incubation period and 2%, inoculum size were the optimum conditions for maximum fibrinolytic enzyme production (141.02 U/g) by Bacillus subtilis Egy under solid-state fermentation The model was significant and data were experimentally validated. The produced fibrinolytic enzyme was evaluated for in vitro and in vivo cytotoxicity. In-vivo examination of the enzyme resulted in no mortality during the first 24 h after treatment. After 14 days, the results revealed no significant changes detected in hematological parameters (RBCs, MCV, hemoglobin except WBCs which showed an increase for both sexes. Histopathological examination of liver and kidney of rats received oral and subcutaneous treatments showed normal architecture. The data showed the applicability of the produced enzyme for the treatment of blood clot with no significant effect on living cells or on physiological functions.
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Affiliation(s)
- Maysa E. Moharam
- Microbial Chemistry Department, Biotechnology Research Institute, National Research Centre, Egypt
| | - Magda A. El-Bendary
- Microbial Chemistry Department, Biotechnology Research Institute, National Research Centre, Egypt
| | | | | | | | - Abeer Salama
- Pharmacology Department, National Research Centre, Egypt
| | | | - Nora N. Elgamal
- Microbial Chemistry Department, Biotechnology Research Institute, National Research Centre, Egypt
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Varol A, Albayrak S, Ozkan H, Demir Y, Taskin M, Adiguzel A. Production, purification and characterization of novel fibrinolytic enzyme from Bacillus atrophaeus V4. Biologia (Bratisl) 2022. [DOI: 10.1007/s11756-022-01281-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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11
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Purification, biochemical characterization and fibrinolytic potential of proteases produced by bacteria of the genus Bacillus: a systematic literature review. Arch Microbiol 2022; 204:503. [PMID: 35852634 DOI: 10.1007/s00203-022-03134-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Revised: 07/03/2022] [Accepted: 07/10/2022] [Indexed: 11/02/2022]
Abstract
Thrombosis is a hematological disorder characterized by the formation of intravascular thrombi, which contributes to the development of cardiovascular diseases. Fibrinolytic enzymes are proteases that promote the hydrolysis of fibrin, promoting the dissolution of thrombi, contributing to the maintenance of adequate blood flow. The characterization of new effective, safe and low-cost fibrinolytic agents is an important strategy for the prevention and treatment of thrombosis. However, the development of new fibrinolytics requires the use of complex methodologies for purification, physicochemical characterization and evaluation of the action potential and toxicity of these enzymes. In this context, microbial enzymes produced by bacteria of the Bacillus genus are promising and widely researched sources to produce new fibrinolytics, with high thrombolytic potential and reduced toxicity. Thus, this review aims to provide a current and comprehensive understanding of the different Bacillus species used for the production of fibrinolytic proteases, highlighting the purification techniques, biochemical characteristics, enzymatic activity and toxicological evaluations used.
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