1
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Li SS, Liu QJ, Bao JX, Lu MT, Deng BQ, Li WW, Cao CC. Counteracting TGM2 by a Fibroin peptide ameliorated Adriamycin-induced nephropathy via regulation of lipid metabolism through PANX1-PPAR α/PANK1 pathway. Transl Res 2024; 271:26-39. [PMID: 38734063 DOI: 10.1016/j.trsl.2024.05.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 04/28/2024] [Accepted: 05/08/2024] [Indexed: 05/13/2024]
Abstract
Peptide drug discovery for the treatment of chronic kidney disease (CKD) has attracted much attention in recent years due to the urge to find novel drugs and mechanisms to delay the progression of the disease. In this study, we identified a novel short peptide (named YR-7, primary sequence 'YEVEDYR') from the natural Fibroin protein, and demonstrated that it significantly alleviated pathological renal changes in ADR-induced nephropathy. PANX1 was identified as the most notably upregulated component by RNA-sequencing. Further analysis showed that YR-7 alleviated the accumulation of lipid droplets via regulation of the lipid metabolism-related proteins PPAR α and PANK1. Using chemical proteomics, fluorescence polarization, microscale thermophoresis, surface plasmon resonance, and molecular docking, YR-7 was proven to directly bind to β-barrel domains of TGM2 protein to inhibit lipid accumulation. TGM2 knockdown in vivo increased the protein levels of PPAR α and PANK1 while decreased the levels of fibrotic-related proteins to alleviate nephropathy. In vitro, overexpression TGM2 reversed the protective effects of YR-7. Co-immunoprecipitation indicated that TGM2 interacted with PANX1 to promote lipid deposition, and pharmacological inhibition or knockdown of PANX1 decreased the levels of PPAR α and PANK1 induced by ADR. Taken together, our findings revealed that TGM2-PANX1 interaction in promoting lipid deposition may be a new signaling in promoting ADR-induced nephropathy. And a novel natural peptide could ameliorate renal fibrosis through TGM2-PANX1-PPAR α/PANK1 pathway, which highlight the potential of it in the treatment of CKD.
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Affiliation(s)
- Shan-Shan Li
- Department of Nephrology, Sir Run Run hospital, Nanjing Medical University, Nanjing, China
| | - Qiao-Juan Liu
- Department of Nephrology, Sir Run Run hospital, Nanjing Medical University, Nanjing, China
| | - Jia-Xin Bao
- Department of Nephrology, Sir Run Run hospital, Nanjing Medical University, Nanjing, China
| | - Meng-Ting Lu
- Department of Nephrology, Sir Run Run hospital, Nanjing Medical University, Nanjing, China
| | - Bing-Quan Deng
- Department of Nephrology, Sir Run Run hospital, Nanjing Medical University, Nanjing, China
| | - Wen-Wen Li
- Department of Nephrology, Sir Run Run hospital, Nanjing Medical University, Nanjing, China
| | - Chang-Chun Cao
- Department of Nephrology, Sir Run Run hospital, Nanjing Medical University, Nanjing, China.
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2
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Zhang E, Ji X, Ouyang F, Lei Y, Deng S, Rong H, Deng X, Shen H. A minireview of the medicinal and edible insects from the traditional Chinese medicine (TCM). Front Pharmacol 2023; 14:1125600. [PMID: 37007003 PMCID: PMC10060509 DOI: 10.3389/fphar.2023.1125600] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 03/08/2023] [Indexed: 03/18/2023] Open
Abstract
Entomoceuticals define a subset of pharmaceuticals derived from insects. The therapeutic effect of insect-derived drugs has been empirically validated by the direct use of various folk medicines originating from three sources in particular: the glandular secretions of insects (e.g., silk, honey, venom), the body parts of the insect or the whole used live or by various processing (e.g., cooked, toasted, ground), and active ingredients extracted from insects or insect-microbe symbiosis. Insects have been widely exploited in traditional Chinese medicine (TCM) relative to other ethnomedicines, especially in the prospect of insect species for medicinal uses. It is noticeable that most of these entomoceuticals are also exploited as health food for improving immune function. In addition, some edible insects are rich in animal protein and have high nutritional value, which are used in the food field, such as insect wine, health supplements and so on. In this review, we focused on 12 insect species that have been widely used in traditional Chinese herbal formulae but have remained less investigated for their biological properties in previous studies. We also combined the entomoceutical knowledge with recent advances in insect omics. This review specifies the underexplored medicinal insects from ethnomedicine and shows their specific medicinal and nutritional roles in traditional medicine.
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Affiliation(s)
- Enming Zhang
- School of Sports Medicine and Physical Therapy, Beijing Sport University, Beijing, China
| | - Xin Ji
- School of Sports Medicine and Physical Therapy, Beijing Sport University, Beijing, China
| | - Fang Ouyang
- Institute of Zoology, Chinese Academy of Science, Beijing, China
| | - Yang Lei
- College of Arts and Sciences, Boston University, Boston, MA, United States
| | - Shun Deng
- Sichuan Provincial Orthopedic Hospital, Chengdu, China
- *Correspondence: Shun Deng, ; Haibo Rong,
| | - Haibo Rong
- Sichuan Provincial Orthopedic Hospital, Chengdu, China
- *Correspondence: Shun Deng, ; Haibo Rong,
| | - Xuangen Deng
- Sichuan Provincial Orthopedic Hospital, Chengdu, China
| | - Hai Shen
- Sichuan Provincial Orthopedic Hospital, Chengdu, China
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3
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Urs AP, Rudresha GV, Manjuprasanna VN, Suvilesh KN, Gowda MDM, Yariswamy M, Hiremath V, Ramakrishnan C, Savitha MN, Jayachandra K, Sharanappa P, Vishwanath BS. Plant latex thrombin‐like cysteine proteases alleviates bleeding by bypassing factor VIII in murine model. J Cell Biochem 2019; 120:12843-12858. [DOI: 10.1002/jcb.28555] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 12/23/2018] [Accepted: 01/07/2019] [Indexed: 11/06/2022]
Affiliation(s)
- Amog P. Urs
- Department of Studies in Biochemistry University of Mysore, Manasagangothri Mysuru Karnataka India
| | - G. V. Rudresha
- Department of Studies in Biochemistry University of Mysore, Manasagangothri Mysuru Karnataka India
| | - V. N. Manjuprasanna
- Department of Studies in Biochemistry University of Mysore, Manasagangothri Mysuru Karnataka India
| | - K. N. Suvilesh
- Department of Studies in Biochemistry University of Mysore, Manasagangothri Mysuru Karnataka India
| | - M. D. Milan Gowda
- Department of Studies in Biochemistry University of Mysore, Manasagangothri Mysuru Karnataka India
| | - M. Yariswamy
- Department of Surgery University of Missouri Columbia Missouri
| | - Vilas Hiremath
- Vijayashree Diagnostics, Specialized Coagulation Lab Bengaluru India
| | - Chandrasekaran Ramakrishnan
- Department of Biotechnology Bhupat and Jyoti Mehta School of Biosciences Indian Institute of Technology Madras Chennai India
| | - M. N. Savitha
- Department of Studies in Biochemistry University of Mysore, Manasagangothri Mysuru Karnataka India
| | - K. Jayachandra
- Department of Studies in Biochemistry University of Mysore, Manasagangothri Mysuru Karnataka India
| | - P. Sharanappa
- Department of Studies in Botany University of Mysore Hassan Karnataka India
| | - B. S. Vishwanath
- Department of Studies in Biochemistry University of Mysore, Manasagangothri Mysuru Karnataka India
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4
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Alici EH, Arabaci G. A novel serine protease from strawberry (Fragaria ananassa): Purification and biochemical characterization. Int J Biol Macromol 2018; 114:1295-1304. [PMID: 29601882 DOI: 10.1016/j.ijbiomac.2018.03.165] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 03/21/2018] [Accepted: 03/27/2018] [Indexed: 12/25/2022]
Abstract
In this study, a protease enzyme was purified from strawberry by using Sepharose-4B-l-tyrosine-p-amino benzoic acid affinity chromatography. The molecular weight of pure protease was determined 65.8 kDa by SDS-PAGE. The single band observed on the gel showed that the enzyme had a single polypeptide chain and was successfully purified. Purification of the protease by the chromatographic method resulted in a 395.6-fold increase in specific activity (3600 U/mg). Optimum pH and temperature for the enzyme were 6 and 40 °C, respectively. The protease was stable at a wide temperature range of 40 to 70 °C and a pH range of 3.0 to 9.0. Co2+ ions stimulated protease activity very strongly. Cu2+, Hg2+, Cd2+ and Mn2+ ions significantly inhibited protease activity. While 2-propanol completely inhibited the enzyme, the enzyme maintained its activity better in the presence of ethanol and methanol. The strawberry protease showed the highest specificity towards hemoglobin among all the natural substrates tested. The specificity of the enzyme towards synthetic substrates was also investigated and it was concluded that it has broad substrate specificity. The obtained results indicated that this purified protease was highly-likely a serine protease and its activity was significantly affected by the presence of metal ions.
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Affiliation(s)
- Esma Hande Alici
- Department of Chemistry, Faculty of Science and Arts, Sakarya University, Serdivan-Sakarya 54187, Turkey.
| | - Gulnur Arabaci
- Department of Chemistry, Faculty of Science and Arts, Sakarya University, Serdivan-Sakarya 54187, Turkey.
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5
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Su T, Wu W, Yan T, Zhang C, Zhu Q, Bao B. Pharmacokinetics and tissue distribution of a novel marine fibrinolytic compound in Wistar rat following intravenous administrations. J Chromatogr B Analyt Technol Biomed Life Sci 2013; 942-943:77-82. [PMID: 24216275 DOI: 10.1016/j.jchromb.2013.10.031] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Revised: 10/11/2013] [Accepted: 10/18/2013] [Indexed: 11/19/2022]
Abstract
We investigated a novel marine fibrinolytic compound for use in thrombolytic therapy. Pharmacokinetics and the tissue distribution of this novel marine fibrinolytic compound, FGFC1(2) (fungi fibrinolytic compound 1), were investigated in Wistar rats after intravenous (IV) bolus administration of two concentrations (10 and 20mg/kg). Plasma FGFC1 and tissue extracts were measured using HPLC with UV detection. FGFC1 was detected using a C18 column with a gradient eluted mobile phase of acetonitrile-water (0.1% trifluoroacetic acid), 1.0mL/min. Chromatograms were monitored at 265nm (column temperature: 40°C). Pharmacokinetic data indicate that FGFC1 fitted well to a two-compartment model. Elimination half-lives (t1/2) of FGFC1 were 21.51±2.17 and 23.22±2.11min for 10 and 20mg/kg, respectively. AUC0-t were 412.19±19.09, 899.09±35.86μg/mLmin, systemic clearance (CL) was 0.023±0.002, 0.022±0.002 ((mg/kg)/(μg/mL)/min) and the mean residence time (MRT) was 10.15±0.97, 9.65±1.40min at 10 and 20mg/kg, respectively. No significant differences were observed in the systemic clearance and mean residence time at the tested doses, suggesting linear pharmacokinetics in rats. Tissue distribution data reveal that FGFC1 distributed rapidly in most tissues except the brain and that the highest concentration of the drug was in the liver. In the small intestine, FGFC1 initially increased and then declined, but remained comparatively high 60min after administration, suggesting that enterohepatic circulation may exist.
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Affiliation(s)
- Tongwei Su
- College of food Science and Technology, Shanghai Ocean University, Shanghai 201306, China
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6
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Molecular cloning and functional expression of a fibrinolytic protease gene from the polychaeta, Periserrula leucophryna. BIOTECHNOL BIOPROC E 2013. [DOI: 10.1007/s12257-012-0800-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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7
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Patel GK, Kawale AA, Sharma AK. Purification and physicochemical characterization of a serine protease with fibrinolytic activity from latex of a medicinal herb Euphorbia hirta. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2012; 52:104-111. [PMID: 22305073 DOI: 10.1016/j.plaphy.2011.12.004] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2011] [Accepted: 12/07/2011] [Indexed: 05/31/2023]
Abstract
A 34 kDa serine protease, designated as hirtin, with fibrinolytic activity was purified to homogeneity from the latex of Euphorbia hirta by the combination of ion exchange and gel filtration chromatography. The N-terminal sequence of hirtin was found to be YAVYIGLILETAA/NNE. Hirtin exhibited esterase and amidase activities along with azocaseinolytic, gelatinolytic, fibrinogenolytic and fibrinolytic activities. It preferentially hydrolyzed Aα and α-chains, followed by Bβ and β, and γ and γ-γ chains of fibrinogen and fibrin clot respectively. The optimum pH and temperature for enzyme activity was found to be pH 7.2 and 50 °C respectively. Enzymatic activity of hirtin was significantly inhibited by PMSF and AEBSF. It showed higher specificity for synthetic substrate p-tos-GPRNA for thrombin. The CD spectra of hirtin showed a high content of β-sheets as compared to α-helix. The results indicate that hirtin is a thrombin-like serine protease and may have potential industrial and therapeutic applications.
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Affiliation(s)
- Girijesh Kumar Patel
- Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee 247 667, India
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8
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Flemmig M, Melzig MF. Serine-proteases as plasminogen activators in terms of fibrinolysis. ACTA ACUST UNITED AC 2012; 64:1025-39. [PMID: 22775207 DOI: 10.1111/j.2042-7158.2012.01457.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
OBJECTIVES This review should give an overview about the natural human plasminogen activators and their various modified variants as well as similar substances isolated from animals, microorganisms and plants. When a blood clot is formed in a blood vessel, it avoids the oxygen supply of the surrounding tissue. A fast fibrinolytic therapy should redissolve the blood vessel and reduce the degradation of the tissue. All proteases that are part of the human blood coagulation and fibrinolytic system belong to the serine protease family. t-PA (tissue plasminogen activator) and u-PA (urokinase plasminogen activator) are the naturally occurring fibrinolytic agents that are also used in therapy. KEY FINDINGS Despite many years of research, t-PA is still the gold standard in fibrinolytic therapy. But it has to be given as an infusion, which needs time. Modified fibrinolytic substances are, were, or perhaps will be in the market. They have different advantages over t-PA, but often the disadvantages predominate. CONCLUSION Many substances have been developed but an optimal fibrinolytic agent combined with a simple administration is not in therapeutic use to date.
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Affiliation(s)
- Martin Flemmig
- Institute of Pharmacy, Freie Universität Berlin, Berlin, Germany
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9
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Mander P, Cho SS, Simkhada JR, Choi YH, Yoo JC. A low molecular weight chymotrypsin-like novel fibrinolytic enzyme from Streptomyces sp. CS624. Process Biochem 2011. [DOI: 10.1016/j.procbio.2011.03.016] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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10
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Wang S, Deng Z, Li Q, Ge X, Bo Q, Liu J, Cui J, Jiang X, Liu J, Zhang L, Hong M. A novel alkaline serine protease with fibrinolytic activity from the polychaete, Neanthes japonica. Comp Biochem Physiol B Biochem Mol Biol 2011; 159:18-25. [PMID: 21276864 DOI: 10.1016/j.cbpb.2011.01.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2010] [Revised: 01/20/2011] [Accepted: 01/22/2011] [Indexed: 11/29/2022]
Abstract
A new protease named NJP with fibrinolytic activity was isolated from Neanthes japonica (Izuka), by a combination of ammonium sulfate fractionation, hydrophobic chromatography, ion-exchange chromatography and gel filtration. The molecular mass of NJP was approximately 28.6-33.5kDa as estimated by MALDI-TOF mass spectrometry and SDS-PAGE, which revealed a monomeric form of the protease. The isoelectric point of NJP determined by 2-DE was 9.2. NJP was stable in the range of pH 7.0-11.0 with a maximum enzymatic activity at 40°C and pH 9.0. The hydrolyzing activity of NJP on fibrinogen started from the Aα-chain, followed by the Bβ-chain, and the γ-chain at last. NJP had also a higher specificity for the chromogenic substrate S-2238 for thrombin. NJP activity was completely inhibited by PMSF. Analysis of partial amino acid sequences showed that NJP had very low homology with other known fibrinolytic enzymes. These results indicate that NJP is a novel alkaline thrombin-like serine protease. Thus NJP may have potential applications in the prevention and treatment of thrombosis.
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Affiliation(s)
- Shaohua Wang
- Department of Biochemistry and Molecular Biology, Norman Bethune College of Medicine, Jilin University, 126 Xinmin Street, Changchun, Jilin, China
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11
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Antúnez K, Anido M, Arredondo D, Evans JD, Zunino P. Paenibacillus larvae enolase as a virulence factor in honeybee larvae infection. Vet Microbiol 2010; 147:83-9. [PMID: 20609532 DOI: 10.1016/j.vetmic.2010.06.004] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2010] [Revised: 06/02/2010] [Accepted: 06/04/2010] [Indexed: 11/30/2022]
Abstract
Paenibacillus larvae is a gram-positive spore-forming bacteria, causative agent of American Foulbrood (AFB), a severe disease affecting larvae of the honeybee Apis mellifera. In an attempt to detect potential virulence factors secreted by P. larvae, we identified an enolase among different secreted proteins. Although this protein is a cytosolic enzyme involved in glycolytic pathways, it has been related to virulence. The aim of the present work was to evaluate its role during the infection of honeybee larvae. Toxicity assays showed that enolase was highly toxic and immunogenic to honeybee larvae. Its production was detected inside P. larvae vegetative cells, on the surface of P. larvae spores and secreted to the external growth medium. P. larvae enolase production was also confirmed in vivo, during the infection of honeybee larvae. This protein was able to hydrolyze milk proteins as described for P. larvae, suggesting that could be involved in larval degradation, maybe through the plasmin(ogen) system. These results suggest that P. larvae enolase may have a role in virulence and could contribute to a general insight about insect-pathogen interaction mechanisms.
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Affiliation(s)
- Karina Antúnez
- Departamento de Microbiología, Instituto de Investigaciones Biológicas Clemente Estable, Avda. Italia 3318, C.P. 11600, Montevideo, Uruguay.
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12
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Deng Z, Wang S, Li Q, Ji X, Zhang L, Hong M. Purification and characterization of a novel fibrinolytic enzyme from the polychaete, Neanthes japonica (Iznka). BIORESOURCE TECHNOLOGY 2010; 101:1954-1960. [PMID: 19896371 DOI: 10.1016/j.biortech.2009.10.014] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2009] [Revised: 09/25/2009] [Accepted: 10/07/2009] [Indexed: 05/28/2023]
Abstract
A novel fibrinolytic enzyme from Neanthes japonica (Iznka), named NJF, was purified to electrophoretic homogeneity using ammonium sulfate precipitation, hydrophobic interaction, ion exchange and gel-filtration chromatography. NJF consisted of a single polypeptide chain with a molecular weight of 28-32 kDa, which was determined by MALDI-TOF mass spectrum and SDS-PAGE. The isoelectric point of NJF determined by isoelectric focusing electrophoresis (IEF) was 4.4, and the maximum activity of the enzyme was observed at 60 degrees C and pH 9.0. The cleavage speed of fibrinogen by NJF affected the Aalpha-chain first, followed by the Bbeta-chain and finally the gamma-chain. NJF activity was strongly inhibited by PMSF, indicating that it is a serine protease. Partial amino-acid sequences of its fragments were different from those of other known fibrinolytic enzymes. N. japonica may thus represent a potential source of new therapeutic agents to treat thrombosis.
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Affiliation(s)
- Zhihui Deng
- Department of Biochemistry and Molecular Biology, Norman Bethune College of Medicine, Jilin University, Changchun, Jilin 130021, China
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13
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Li HP, Hu Z, Yuan JL, Fan HD, Chen W, Wang SJ, Zheng SS, Zheng ZL, Zou GL. A novel extracellular protease with fibrinolytic activity from the culture supernatant of Cordyceps sinensis: purification and characterization. Phytother Res 2008; 21:1234-41. [PMID: 17661328 DOI: 10.1002/ptr.2246] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
A novel serine protease with fibrinolytic activity named CSP was purified from the culture supernatant of the fungus Cordyceps sinensis, a kind of Chinese herbal medicine. Analysis of the purified enzyme by SDS-PAGE indicated that CSP was a single polypeptide chain with an apparent molecular weight of 31 kDa, and N-terminal sequencing revealed that the first ten amino acid residues of the enzyme were Ala-Leu-Ala-Thr-Gln-His-Gly-Ala-Pro-Trp-. When casein was used as a substrate, the proteolytic activity of CSP reached its maximum at pH 7.0 and 40 degrees C. The effect of chemical agents on the enzyme activity indicated that CSP is a serine protease with a free cysteine residue near the active site. It hydrolysed fibrinogen, fibrin and casein with a high efficiency, while hydrolysing bovine serum albumin (BSA) and human serum albumin (HSA) to a lesser extent. CSP was found to be a plasmin-like protease, but not a plasminogen activator, and it preferentially cleaved the A alpha chain of fibrinogen and the alpha-chain of fibrin. Therefore, the extracellular protein CSP may represent a potential new therapeutic agent for the treatment of thrombosis.
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Affiliation(s)
- Hua-ping Li
- State Key Laboratory of Virology, College of Life Sciences, Wuhan University, Wuhan, Hubei Province, 430072, PR China
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14
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Wang D, Liu W, Han B, Xu R. Biochemical and enzymatic properties of a novel marine fibrinolytic enzyme from Urechis unicinctus. Appl Biochem Biotechnol 2007; 136:251-64. [PMID: 17625232 DOI: 10.1007/s12010-007-9024-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2005] [Revised: 05/09/2006] [Accepted: 05/25/2006] [Indexed: 11/27/2022]
Abstract
A novel potent protease, Urechis unicinctus fibrinolytic enzyme (UFE), was first discovered by our laboratory. In this study, we further investigated the enzymatic properties and dynamic parameters of UFE. As a low molecular weight protein, UFE appeared to be very stable to heat and pH. When the temperature was <50 degrees C, the remnant enzyme activity remained almost unchanged, but when the temperature was raised to 60 degrees C the remnant enzyme activity began to decrease rapidly. UFE was quite stable in a pH range of 3.0-12.0, especially at slightly alkaline pH values. Mn(2+), Cu(2+), and Fe(2+) ions were activators of UFE, whereas Fe(3+) and Ag(+) ions were inhibitors. Fe(2+) ion along with Fe(3+) ion might regulate UFE activity in vivo. The optimum pH and temperature of UFE were about 8.0 and 50 degrees C, respectively. When using casein as substrate and a substrate concentration <0.1% casein (w/v), the reaction velocity was increased with substrate concentration. Also when using casein as substrate, the determined K(m) and V(max) of UFE were 0.5298 mg/mL and 3.0845 mol of L-tyrosine equivalent, respectively. Our systematic research results are significant when UFE is applied for medical and industrial purposes.
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Affiliation(s)
- Dianliang Wang
- College of Marine Life Sciences, Ocean University of China, Qingdao, China.
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15
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Zhang Y, Cui J, Zhang R, Wang Y, Hong M. A novel fibrinolytic serine protease from the polychaete Nereis (Neanthes) virens (Sars): Purification and characterization. Biochimie 2007; 89:93-103. [PMID: 16950556 DOI: 10.1016/j.biochi.2006.07.023] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2006] [Accepted: 07/28/2006] [Indexed: 11/30/2022]
Abstract
A novel fibrinolytic serine protease has been identified and purified to homogeneity from the coelomic fluid of polychaete Nereis (Neanthes) virens (Sars), and named N-V protease. N-V protease is a 29kDa single chain protein with an isoelectric point of pH 4.5. It hydrolyzes Aalpha-chain of fibrinogen with a high efficiency, and the Bbeta- and gamma-chains (Aalpha>Bbeta>gamma) with a lower efficiency. The proteolytic activity peaks at pH 7.8 is 45 degrees C. The activity is completely inhibited by serine protease inhibitors DFP (I(50)=5.8 x 10(-4)M) and PMSF (I(50)=5.5 x 10(-2)M), and almost completely by TLCK (I(50)=7.7 x 10(-1) M). But aprotinin, elastinal, SBTI, benzamidine, PCMB, EDTA, EGTA, iodoacetate, E64, and beta-mercaptoethanol have no effect on the protease activity. Therefore, N-V protease is identified as a serine protease. The primary amino acid sequence of N-V protease was determined by mass spectrometry (N-V protease, No. P83433). According to the MALDI-TOF MS analysis, there is no existing protein in the NCBI Non-redundant Protein Sequence Database that matches the N-V protease sequence. Therefore, N-V protease is a novel and special protein in N. virens. Furthermore, we have successfully established an expression cDNA library from the whole body of N. virens (data not shown).
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Affiliation(s)
- Yunlong Zhang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Jilin University, Changchun 130021, China
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16
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Rajesh R, Nataraju A, Gowda CDR, Frey BM, Frey FJ, Vishwanath BS. Purification and characterization of a 34-kDa, heat stable glycoprotein from Synadenium grantii latex: action on human fibrinogen and fibrin clot. Biochimie 2006; 88:1313-22. [PMID: 16997451 DOI: 10.1016/j.biochi.2006.06.007] [Citation(s) in RCA: 70] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2005] [Accepted: 06/02/2006] [Indexed: 11/17/2022]
Abstract
Latex glycoprotein (LGP) from Synadenium grantii latex was purified by the combination of heat precipitation and gel permeation chromatography. LGP is a heat stable protein even at 80 degrees C showed a sharp single band both in SDS-PAGE as well as in native (acidic) PAGE. LGP is a monomeric protein appears as single band under reducing condition. It is a less hydrophobic protein showed sharp single peak in RP-HPLC with retention time of 13.3 m. The relative molecular mass of LGP is 34.4 kDa. CD spectrum of LGP explains less content of alpha-helix (7%), and high content of beta-pleated sheets (48%) and random coils (46%). The N-terminal sequence of LGP is D-F-P-S-D-W-Y-A-Y-E-G-Y-V-I-D-R-P-F-S. Purified LGP is a fibrinogen degrading protease hydrolyses all the three subunits in the order of Aalpha, Bbeta and gamma. The hydrolytic pattern is totally different from plasmin as well as thrombin. LGP reduces recalcification time from 165 to 30 s with citrated human plasma but did not show thrombin like as well as factor Xa-like activity. Although LGP induces procoagulant activity, it hydrolyses partially cross-linked fibrin clot. It hydrolyses all the subunits of partially cross-linked fibrin clot (alpha- chains, beta-chain and gamma-gamma dimer). LGP is a serine protease, inhibited by PMSF. Other serine protease inhibitors, aprotinin and leupeptin did not inhibit the caseinolytic activity as well as fibrinogenolytic activity. We report purification and characterization of a glycoprotein from Synadenium grantii latex with human fibrino(geno)lytic activity.
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Affiliation(s)
- R Rajesh
- Department of Studies in Biochemistry, University of Mysore, Manasagangothri, Mysore 570006, India
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Ahn MY, Hahn BS, Ryu KS, Hwang JS, Kim YS. Purification and characterization of a serine protease (CPM-2) with fibrinolytic activity from the dung beetles. Arch Pharm Res 2005; 28:816-22. [PMID: 16114497 DOI: 10.1007/bf02977348] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Catharsius protease-2 (CPM-2) was isolated from the body of dung beetles, Catharsius molossus, using a three step purification process (ammonium sulfate fractionation, gel filtration on Bio-Gel P-60, and affinity chromatography on DEAE Affi-Gel blue). The purified CPM-2, having a molecular weight of 24 kDa, was assessed homogeneously by SDS-polyacrylamide gel electrophoresis. The N-terminal amino acid sequence of CPM-2 was composed of X Val Gln Asp Phe Val Glu Glu Ile Leu. CPM-2 was inactivated by Cu2+ and Zn2+ and strongly inhibited by typical serine proteinase inhibitors such as TLCK, soybean trypsin inhibitor, aprotinin, benzamidine, and alpha1-antitrypsin. However, EDTA, EGTA, cysteine, beta-mercaptoethanol, E64, and elastatinal had little effect on enzyme activity. In addition, antiplasmin and antithrombin III were not sensitive to CPM-2. Based on the results of a fibrinolytic activity test, CPM-2 readily cleaved Aalpha- and Bbeta-chains of fibrinogen and fibrin, and gamma-chain of fibrinogen more slowly. The nonspecific action of the enzyme resulted in extensive hydrolysis, releasing a variety of fibrinopeptides of fibrinogen and fibrin. Polyclonal antibodies of CPM-2 were reactive to the native form of antigen. The ELISA was applied to detect quantities, in nanograms, of the antigen in CPM-2 protein.
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Affiliation(s)
- Mi Young Ahn
- Department of Agricultural Biology, National Institute of Agricultural Science and Technology, Suwon 441-100, Korea.
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Pinto AFM, Dobrovolski R, Veiga ABG, Guimarães JA. Lonofibrase, a novel alpha-fibrinogenase from Lonomia obliqua caterpillars. Thromb Res 2005; 113:147-54. [PMID: 15115670 DOI: 10.1016/j.thromres.2004.01.012] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2003] [Revised: 01/17/2004] [Accepted: 01/19/2004] [Indexed: 11/23/2022]
Abstract
Envenomation caused by Lonomia obliqua caterpillars is an increasing problem in Southern Brazil. The clinical profile is characterized by a profound hemorrhagic disorder. In the present study, we describe the characterization of a fibrin(ogen)olytic factor (lonofibrase) isolated from a venomous secretion of the caterpillars. The crude extract showed a dose-dependent inhibitory effect in the rate of thrombin-induced fibrinogen clotting and produced fragmentation of fibrinogen. Isolation of the fibrin(ogen)olytic enzyme was achieved by combining ion exchange chromatography followed by gel filtration in a fast protein liquid chromatography (FPLC) system. A single 35-kDa band was identified and the isolated enzyme named lonofibrase. Lonofibrase rapidly degrades Aalpha and Bbeta chains of fibrinogen, also being able to cleave fibrin in a distinct way from that observed with plasmin. The presence of lonofibrase with both fibrinogenolytic and fibrinolytic activities in L. obliqua secretion is coherent with the severe hemorrhagic clinical profile resulting from envenomation caused by these insects.
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Affiliation(s)
- Antônio Frederico Michel Pinto
- Universidade Federal do Rio Grande do Sul, Centro de Biotechnologia, Av. Bento Goncalves 9500, PO Box 15005, Porto Alegre 91501-970, Brazil
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You WK, Sohn YD, Kim KY, Park DH, Jang Y, Chung KH. Purification and molecular cloning of a novel serine protease from the centipede, Scolopendra subspinipes mutilans. INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY 2004; 34:239-250. [PMID: 14871620 DOI: 10.1016/j.ibmb.2003.10.003] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2003] [Accepted: 10/20/2003] [Indexed: 05/24/2023]
Abstract
A novel serine protease, named as scolonase, was purified and characterized from the tissue of the Korean centipede, Scolopendra subspinipes mutilans. Purified scolonase showed an apparent molecular weight of 25 kDa on sodium dodecyl sulfate-polyacrylamide gel electrophoresis analysis and an isoelectric point of 4.8 on isoelectric focusing gel. Scolonase was able to preferentially hydrolyze arginine over lysine at the cleavage site among the several synthetic peptide substrates. Scolonase has also a potent fibrinolytic activity by converting human Glu-plasminogen to activated plasmin due to the specific cleavage of the molecule at the peptide bond Arg(561)-Val(562). The enzyme activity of scolonase was completely inhibited by phenylmethanesulfonyl fluoride and difluorophosphate. The cDNA encoding scolonase was cloned from the cDNA library of the centipede constructed with oligonucleotide probe, which was designed on the basis of the N-terminal amino acid sequence of scolonase. The deduced complete amino acid sequence of scolonase demonstrated that the protein is composed of 277 amino acids including 33 amino acids as a leader sequence, and that it has significant sequence homology with other serine proteases.
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Affiliation(s)
- Weon-Kyoo You
- Mogam Biotechnology Research Institute, Bioproducts Research Center, 341 Pojung-ri, Koosung-myun, Yongin City, Kyonggi-do 449-910, South Korea
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Berry LR, Klement P, Andrew M, Chan AKC. Effect of covalent serpin-heparinoid complexes on plasma thrombin generation on fetal distal lung epithelium. Am J Respir Cell Mol Biol 2003; 28:150-8. [PMID: 12540482 DOI: 10.1165/rcmb.4849] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Extravascular coagulation within the lung airspace is a hallmark of respiratory distress syndrome (RDS) in premature infants. We previously showed that covalent antithrombin-heparin complex (ATH) is superior to noncovalent antithrombin (AT) + heparin (H) mixtures at inhibiting plasma thrombin generation on rat fetal distal lung epithelium (FDLE) in vitro. However, heparin cofactor II (HC) has been shown to selectively inhibit thrombin, which may be advantageous if other enzyme activities are present in the airspace. We compared the abilities of ATH, covalent HC-heparin complex (HCH), and covalent HC-dermatan sulfate (HCD) to inhibit thrombin generation on FDLE in plasmas from either adults or newborns. In the presence of ATH, peak free thrombin generation in adult plasma on the cell surface was reduced by 92% compared with controls (no anticoagulant). However, whereas HCH reduced peak free thrombin generation in adult plasma by 81%, HCD was only able to reduce activity by 33%. All covalent complexes caused a greater decrease in thrombin activity compared with that with the corresponding noncovalent serpin + heparinoid mixtures. Experiments in plasma from newborns resulted in peak free thrombin that was less than or equal to that in adult plasma when covalent conjugates were added. Relative peak free thrombin was proportional to rate of prothrombin consumption and amount of thrombin-inhibitor complexes formed. In vivo, experiments in newborn rats showed that a greater percentage of intratracheally instilled ATH and HCH could be recovered in lung lavage fluid compared withwith that for HCD. In summary, ATH, HCH, and HCD are inhibitors of thrombin generation on FDLE superior to the corresponding noncovalent mixtures, with ATH and HCH being more potent than HCD. Covalent conjugates of AT or HC with H may be preferred in treatment of extravascular coagulation.
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Ahn MY, Hahn BS, Ryu KS, Kim JW, Kim I, Kim YS. Purification and characterization of a serine protease with fibrinolytic activity from the dung beetles, Catharsius molossus. Thromb Res 2003; 112:339-47. [PMID: 15041280 DOI: 10.1016/j.thromres.2004.01.005] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2004] [Accepted: 01/13/2004] [Indexed: 11/15/2022]
Abstract
Catharsius protease-1 (CPM-1) was isolated from the whole body of the dung beetles, Catharsius molossus, using three purification steps (ammonium sulfate fractionation, gel filtration on Bio-Gel P-60, and affinity chromatography on DEAE Affi-Gel Blue gel). The purified CPM-1 that has a molecular weight of 27 kDa was assessed homogeneous by SDS-polyacrylamide gel electrophoresis and an isoelectric point of 4.4 was determined by isoelectric focusing. N-terminal amino acid sequence of the protease was composed of Ile-Val-Gly-Gly-Gln-Ala-Val-Glu-Ile-Gly-Asp-Tyr-Pro-Ala-Gln. The enzyme was inactivated by Cu(2+) and Zn(2+) and strongly inhibited by typical serine proteinase inhibitors such as TLCK, soybean trypsin inhibitor, aprotinin, benzamidine and alpha-antitrypsin. However, EDTA, EGTA, cysteine, beta-mercaptoethanol, E64, chymostatin, elastatinal and TPCK did not/less affect activity. Also, antiplasmin and antithrombin III were not sensitive to CPM-1. On the basis of amidolytic activity test, CPM-1 preferably hydrolysed chromogenic protease substrates containing Arg or Lys residues of the P1 position at pH 7.0 and 37 degrees C. CPM-1 preferentially cleaved the oxidized B-chain of insulin between Arg(22) and Gly(23). CPM-1 readily digested Aalpha- and gamma-chains and more slowly Bbeta-chain of fibrinogen. The nonspecific action of the enzyme resulted in extensive hydrolysis, releasing a variety of fibrinopeptides of fibrinogen and fibrin. D-dimer concentration increased on incubation of cross-linked fibrin with CPM-1, indicating that the enzyme has a significant fibrinolytic activity.
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Affiliation(s)
- Mi Young Ahn
- Department of Sericulture and Entomology, National Institute of Agricultural Science and Technology, 61 Sudun-Dong, Kwonsun-gu, Suwon 441-100, South Korea.
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