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Wang Y, Zhao Y, Wang X, Xie Y, Bai L, Guan S. Fucoidan/collagen composite coating on magnesium alloy for better corrosion resistance and pro-endothelialization potential. Int J Biol Macromol 2024; 255:128044. [PMID: 37981269 DOI: 10.1016/j.ijbiomac.2023.128044] [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: 07/04/2023] [Revised: 11/03/2023] [Accepted: 11/09/2023] [Indexed: 11/21/2023]
Abstract
Magnesium alloy stents (MAS) have broad application prospects in the treatment of cardiovascular diseases. However, poor corrosion resistance and biocompatibility greatly limit the clinical application of MAS. In this work, the coating consisting of MgF2 layer, polydopamine layer, fucoidan and collagen IV was constructed on Mg-Zn-Y-Nd (ZE21B) alloy to improve its corrosion resistance and pro-endothelialization potential. The fucoidan and collagen IV in the coating could obviously enhance the hemocompatibility and pro-endothelialization potential respectively. Compared with bare ZE21B alloy, the fucoidan/collagen composite coating modified ZE21B alloy possessed lower corrosion current density and better corrosion resistance. Moreover, the modified ZE21B alloy exhibited relatively low hemolysis rate, fibrinogen adsorption and platelet adhesion in the blood experiments, suggesting the improved hemocompatibility. Furthermore, the modified ZE21B alloy favorably supported the adhesion and proliferation of vascular endothelial cells (ECs) and effectively regulated the phenotype of smooth muscle cells (SMCs), thus improving the pro-endothelialization potential of vascular stent materials. The fucoidan/collagen composite coating can significantly improve the corrosion resistance and pro-endothelialization potential of ZE21B alloy, showing great potential in the development of degradable MAS.
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Affiliation(s)
- Yahui Wang
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China; Henan Key Laboratory of Advanced Magnesium Alloys, Zhengzhou 450002, China
| | - Yuan Zhao
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China; Henan Key Laboratory of Advanced Magnesium Alloys, Zhengzhou 450002, China
| | - Xinyu Wang
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China; Henan Key Laboratory of Advanced Magnesium Alloys, Zhengzhou 450002, China
| | - Yinde Xie
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China.
| | - Lingchuang Bai
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China; Henan Key Laboratory of Advanced Magnesium Alloys, Zhengzhou 450002, China.
| | - Shaokang Guan
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China; Henan Key Laboratory of Advanced Magnesium Alloys, Zhengzhou 450002, China; Key Laboratory of Materials Processing and Mold Technology, Ministry of Education, Zhengzhou 450002, China
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Mariño-Ocampo N, Rodríguez DF, Guerra Díaz D, Zúñiga-Núñez D, Duarte Y, Fuentealba D, Zacconi FC. Direct Oral FXa Inhibitors Binding to Human Serum Albumin: Spectroscopic, Calorimetric, and Computational Studies. Int J Mol Sci 2023; 24:ijms24054900. [PMID: 36902328 PMCID: PMC10002493 DOI: 10.3390/ijms24054900] [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: 12/31/2022] [Revised: 02/26/2023] [Accepted: 03/01/2023] [Indexed: 03/06/2023] Open
Abstract
Direct FXa inhibitors are an important class of bioactive molecules (rivaroxaban, apixaban, edoxaban, and betrixaban) applied for thromboprophylaxis in diverse cardiovascular pathologies. The interaction of active compounds with human serum albumin (HSA), the most abundant protein in blood plasma, is a key research area and provides crucial information about drugs' pharmacokinetics and pharmacodynamic properties. This research focuses on the study of the interactions between HSA and four commercially available direct oral FXa inhibitors, applying methodologies including steady-state and time-resolved fluorescence, isothermal titration calorimetry (ITC), and molecular dynamics. The HSA complexation of FXa inhibitors was found to occur via static quenching, and the complex formation in the ground states affects the fluorescence of HSA, with a moderate binding constant of 104 M-1. However, the ITC studies reported significantly different binding constants (103 M-1) compared with the results obtained through spectrophotometric methods. The suspected binding mode is supported by molecular dynamics simulations, where the predominant interactions were hydrogen bonds and hydrophobic interactions (mainly π-π stacking interactions between the phenyl ring of FXa inhibitors and the indole moiety of Trp214). Finally, the possible implications of the obtained results regarding pathologies such as hypoalbuminemia are briefly discussed.
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Affiliation(s)
- Nory Mariño-Ocampo
- Escuela de Química, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile
| | - Diego F. Rodríguez
- Escuela de Química, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile
| | - Daniel Guerra Díaz
- Escuela de Química, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile
| | - Daniel Zúñiga-Núñez
- Escuela de Química, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile
| | - Yorley Duarte
- Center for Bioinformatics and Integrative Biology, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago 8370035, Chile
| | - Denis Fuentealba
- Escuela de Química, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile
- Correspondence: (D.F.); (F.C.Z.)
| | - Flavia C. Zacconi
- Escuela de Química, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile
- Institute for Biological and Medical Engineering, Schools of Engineering, Medicine and Biological Sciences, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile
- Centro de Investigaciones en Nanotecnología y Materiales Avanzados, CIEN-UC, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile
- Center for Nanomedicine, Diagnostic & Drug Development (ND3), Universidad de Talca, Talca 3460000, Chile
- Correspondence: (D.F.); (F.C.Z.)
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Comparative Analysis of Roots from Vicatia thibetica de Boiss and Angelica sinensis Based on Chemical Composition, Antioxidant, Nitrite-Scavenging and Enzyme Inhibition Activities. Molecules 2023; 28:molecules28041942. [PMID: 36838931 PMCID: PMC9962074 DOI: 10.3390/molecules28041942] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 02/13/2023] [Accepted: 02/15/2023] [Indexed: 02/22/2023] Open
Abstract
Radix Vicatia thibetica de Boiss (RVT) is locally known as "Xigui" or "Dujiao-danggui" in Tibetan medicine and is often used as a substitute for Radix Angelica sinensis (RAS) in daily nourishing diets and clinical applications. In this study, we determined and compared the contents of polysaccharides, total coumarins, ferulic acid, total phenols, total flavonoids, chlorogenic acid, protein, and amino acids, and the composition of volatile oil in RVT and RAS. Biological activities, including antioxidants, scavenging of nitrite, inhibition of tyrosinase, thrombin, and coagulation FXa, were comparatively evaluated. Results showed that RVT contains more polysaccharides, phenols, flavonoids, proteins, glutamic acid, and lysine as compared to RAS. Among volatile compounds, 14 species are similar, and 20 species are different in RVT and RAS. Overall, among volatile compounds, the content of 3-N-Butylphthalide was higher, whereas the content of ligustilide was lower in RVT volatile oil. A significant difference was reported in the bioactivity of RVT and RAS. The biological activity of RVT had higher antioxidant, nitrite scavenging, and tyrosinase inhibitory activities, whereas it showed much lower thrombin and FXa inhibitory activities. Correlation analysis showed that the antioxidant, nitrite scavenging, and tyrosinase inhibitory activities were related to the phenol and flavonoid content, whereas the thrombin and FXa inhibitory activities were related to ferulic acid and volatile oil content. This study presents a comparative analysis of RAS and RVT's chemical compositions of antioxidant, nitrite-scavenging, inhibition of tyrosinase, thrombin, and coagulation FXa activities. It was found that both RVT and RAS have their unique advantages, and RVT has the potential to be utilized as functional foods, cosmetics, and medical products.
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Fernández-Bachiller MI, Hwang S, Schembri ME, Lindemann P, Guberman M, Herziger S, Specker E, Matter H, Will DW, Czech J, Wagner M, Bauer A, Schreuder H, Ritter K, Urmann M, Wehner V, Sun H, Nazaré M. Probing Factor Xa Protein-Ligand Interactions: Accurate Free Energy Calculations and Experimental Validations of Two Series of High-Affinity Ligands. J Med Chem 2022; 65:13013-13028. [PMID: 36178213 DOI: 10.1021/acs.jmedchem.2c00865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The accurate prediction of protein-ligand binding affinity belongs to one of the central goals in computer-based drug design. Molecular dynamics (MD)-based free energy calculations have become increasingly popular in this respect due to their accuracy and solid theoretical basis. Here, we present a combined study which encompasses experimental and computational studies on two series of factor Xa ligands, which enclose a broad chemical space including large modifications of the central scaffold. Using this integrated approach, we identified several new ligands with different heterocyclic scaffolds different from the previously identified indole-2-carboxamides that show superior or similar affinity. Furthermore, the so far underexplored terminal alkyne moiety proved to be a suitable non-classical bioisosteric replacement for the higher halogen-π aryl interactions. With this challenging example, we demonstrated the ability of the MD-based non-equilibrium free energy calculation approach for guiding crucial modifications in the lead optimization process, such as scaffold replacement and single-site modifications at molecular interaction hot spots.
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Affiliation(s)
| | - Songhwan Hwang
- Structural Chemistry and Computational Biophysics, Leibniz-Forschungsinstitut für Molekulare Pharmakologie, Robert-Rössle Str. 10, 13125Berlin, Germany
| | - María Elena Schembri
- Medizinische Chemie, Leibniz-Forschungsinstitut für Molekulare Pharmakologie, Robert-Rössle Str. 10, 13125Berlin, Germany
| | - Peter Lindemann
- Medizinische Chemie, Leibniz-Forschungsinstitut für Molekulare Pharmakologie, Robert-Rössle Str. 10, 13125Berlin, Germany
| | - Mónica Guberman
- Medizinische Chemie, Leibniz-Forschungsinstitut für Molekulare Pharmakologie, Robert-Rössle Str. 10, 13125Berlin, Germany
| | - Svenja Herziger
- Medizinische Chemie, Leibniz-Forschungsinstitut für Molekulare Pharmakologie, Robert-Rössle Str. 10, 13125Berlin, Germany
| | - Edgar Specker
- Medizinische Chemie, Leibniz-Forschungsinstitut für Molekulare Pharmakologie, Robert-Rössle Str. 10, 13125Berlin, Germany
| | - Hans Matter
- R&D, Sanofi-Aventis Deutschland GmbH, Industriepark-Höchst, Building G878, 65926Frankfurt am Main, Germany
| | - David W Will
- R&D, Sanofi-Aventis Deutschland GmbH, Industriepark-Höchst, Building G878, 65926Frankfurt am Main, Germany
| | - Jörg Czech
- R&D, Sanofi-Aventis Deutschland GmbH, Industriepark-Höchst, Building G878, 65926Frankfurt am Main, Germany
| | - Michael Wagner
- R&D, Sanofi-Aventis Deutschland GmbH, Industriepark-Höchst, Building G878, 65926Frankfurt am Main, Germany
| | - Armin Bauer
- R&D, Sanofi-Aventis Deutschland GmbH, Industriepark-Höchst, Building G878, 65926Frankfurt am Main, Germany
| | - Herman Schreuder
- R&D, Sanofi-Aventis Deutschland GmbH, Industriepark-Höchst, Building G878, 65926Frankfurt am Main, Germany
| | - Kurt Ritter
- R&D, Sanofi-Aventis Deutschland GmbH, Industriepark-Höchst, Building G878, 65926Frankfurt am Main, Germany
| | - Matthias Urmann
- R&D, Sanofi-Aventis Deutschland GmbH, Industriepark-Höchst, Building G878, 65926Frankfurt am Main, Germany
| | - Volkmar Wehner
- R&D, Sanofi-Aventis Deutschland GmbH, Industriepark-Höchst, Building G878, 65926Frankfurt am Main, Germany
| | - Han Sun
- Structural Chemistry and Computational Biophysics, Leibniz-Forschungsinstitut für Molekulare Pharmakologie, Robert-Rössle Str. 10, 13125Berlin, Germany.,Institute of Chemistry, Technische Universität Berlin, Strasse des 17. Juni 135, 10623Berlin, Germany
| | - Marc Nazaré
- Medizinische Chemie, Leibniz-Forschungsinstitut für Molekulare Pharmakologie, Robert-Rössle Str. 10, 13125Berlin, Germany
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Lu H, Wu Y, Zhao H, Zhang D. Design and synthesis of tricyclic benzo[1, 3]oxazinyloxazolidinones as blood coagulation factor Xa inhibitors. SYNTHETIC COMMUN 2022. [DOI: 10.1080/00397911.2022.2079991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Haijia Lu
- Beijing Key Laboratory of Active Substance Discovery and Druggability Evaluation, Chinese Academy of Medical Sciences Key Laboratory of Anti-DR TB Innovative Drug Research, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, P. R. China
| | - Yongqi Wu
- Beijing Key Laboratory of Active Substance Discovery and Druggability Evaluation, Chinese Academy of Medical Sciences Key Laboratory of Anti-DR TB Innovative Drug Research, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, P. R. China
| | - Hongyi Zhao
- Beijing Key Laboratory of Active Substance Discovery and Druggability Evaluation, Chinese Academy of Medical Sciences Key Laboratory of Anti-DR TB Innovative Drug Research, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, P. R. China
| | - Dongfeng Zhang
- Beijing Key Laboratory of Active Substance Discovery and Druggability Evaluation, Chinese Academy of Medical Sciences Key Laboratory of Anti-DR TB Innovative Drug Research, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, P. R. China
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Ai Q, Lin X, Xie H, Li B, Liao M, Fan H. Proteome Analysis in PAM Cells Reveals That African Swine Fever Virus Can Regulate the Level of Intracellular Polyamines to Facilitate Its Own Replication through ARG1. Viruses 2021; 13:v13071236. [PMID: 34206713 PMCID: PMC8310191 DOI: 10.3390/v13071236] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 06/22/2021] [Accepted: 06/22/2021] [Indexed: 11/22/2022] Open
Abstract
In 2018, African swine fever broke out in China, and the death rate after infection was close to 100%. There is no effective and safe vaccine in the world. In order to better characterize and understand the virus–host-cell interaction, quantitative proteomics was performed on porcine alveolar macrophages (PAM) infected with ASFV through tandem mass spectrometry (TMT) technology, high-performance liquid chromatography (HPLC), and mass spectrometry (MS). The proteome difference between the simulated group and the ASFV-infected group was found at 24 h. A total of 4218 proteins were identified, including 306 up-regulated differentially expressed proteins and 238 down-regulated differentially expressed proteins. Western blot analysis confirmed changes in the expression level of the selected protein. Pathway analysis is used to reveal the regulation of protein and interaction pathways after ASFV infection. Functional network and pathway analysis can provide an insight into the complexity and dynamics of virus–host cell interactions. Further study combined with proteomics data found that ARG1 has a very important effect on ASFV replication. It should be noted that the host metabolic pathway of ARG1-polyamine is important for virus replication, revealing that the virus may facilitate its own replication by regulating the level of small molecules in the host cell.
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Affiliation(s)
- Qiangyun Ai
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (Q.A.); (X.L.); (H.X.)
- Research Center for African Swine Fever Prevention and Control, South China Agricultural University, Guangzhou 510642, China
- Key Laboratory of Zoonosis Prevention and Control of Guangdong Province, Guangzhou 510642, China
- Key Laboratory of Animal Vaccine Development, Ministry of Agriculture, Guangzhou 510642, China
| | - Xiwei Lin
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (Q.A.); (X.L.); (H.X.)
- Research Center for African Swine Fever Prevention and Control, South China Agricultural University, Guangzhou 510642, China
- Key Laboratory of Zoonosis Prevention and Control of Guangdong Province, Guangzhou 510642, China
- Key Laboratory of Animal Vaccine Development, Ministry of Agriculture, Guangzhou 510642, China
| | - Hangao Xie
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (Q.A.); (X.L.); (H.X.)
- Research Center for African Swine Fever Prevention and Control, South China Agricultural University, Guangzhou 510642, China
- Key Laboratory of Zoonosis Prevention and Control of Guangdong Province, Guangzhou 510642, China
- Key Laboratory of Animal Vaccine Development, Ministry of Agriculture, Guangzhou 510642, China
| | - Bin Li
- Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Key Laboratory of Veterinary Biological Engineering and Technology, Ministry of Agriculture, Nanjing 210014, China;
| | - Ming Liao
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (Q.A.); (X.L.); (H.X.)
- Research Center for African Swine Fever Prevention and Control, South China Agricultural University, Guangzhou 510642, China
- Key Laboratory of Zoonosis Prevention and Control of Guangdong Province, Guangzhou 510642, China
- Key Laboratory of Animal Vaccine Development, Ministry of Agriculture, Guangzhou 510642, China
- Correspondence: (M.L.); (H.F.); Tel.: +86-20-85280240 (M.L.); +86-20-85283309 (H.F.)
| | - Huiying Fan
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (Q.A.); (X.L.); (H.X.)
- Research Center for African Swine Fever Prevention and Control, South China Agricultural University, Guangzhou 510642, China
- Key Laboratory of Zoonosis Prevention and Control of Guangdong Province, Guangzhou 510642, China
- Key Laboratory of Animal Vaccine Development, Ministry of Agriculture, Guangzhou 510642, China
- Correspondence: (M.L.); (H.F.); Tel.: +86-20-85280240 (M.L.); +86-20-85283309 (H.F.)
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Abstract
Amygdalus persica L., belongs to Rosaceae family, and its flowers are used as medicine and food. n-Butanol extract of A. persica flowers were isolated and purified with various column chromatographies, and the fourteen compounds, chlorogenic acid butyl ester (1), rutin (2), protocatechuic acid (3), caffeic acid (4), 5-O-coumarroylquinic acid methyl ester (5), kaempferol-3-O-neohesperidoside (6), quercetin-3-O-β-D-glucoside (7), 3,5-dicaffeoylquinic acid (8), quercetin-3-O-α-L-rhamnoside (9), 5-O-coumaroylquinic acid (10), kaempferol-3-O-α-L-rhamnoside (11), kaempferol-3-O-β-D-galactoside (12), D-glucitol (13), and multiflorin A (14), were identified by spectroscopic data and physical data. All the compounds except compound 2 were identified from A. persica flowers for the first time. The compounds were investigated for their coagulation activity by activated partial thromboplastin time (APTT), prothrombin time (PT), thrombin time (TT), and bibrinogen (FIB) in vitro. The results of coagulation activity showed that rutin (2), caffeic acid (4), kaempferol-3-O-neohesperidoside (6), kaempferol-3-O-α-L-rhamnoside (11), and kaempferol-3-O-β-D-galactoside (12) exhibited significant procoagulant activity, while chlorogenic acid butyl ester (1) possessed anticoagulant activity in vitro.
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Zhang J, Zhang W, Yin Z, Yang B, Kang W. Chemical Constituents and Coagulation Activity of Amygdalus persica L. Flowers. Nat Prod Commun 2021. [DOI: 10.1177/1934578x211004389] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The ethyl acetate extract of Amygdalus persica L. flowers (family Rosaceae) was fractionated by silica gel and Sephadex LH-20 column chromatography, and, after recrystallization, oleanolic acid (1), ursolic acid (2), quercetin (3), kaempferol (4), hesperetin (5), naringenin (6), and kaempferol-3- O-glucoside (7) were isolated. Their identities were elucidated by spectral techniques and from their physicochemical properties. Compounds 3-7 were identified from A. persica flowers for the first time. All the compounds were evaluated for their procoagulant activity by determining their activated partial thromboplastin time (APTT), prothrombin time (PT), thrombin time (TT), and fibrinogen (FIB) in vitro. The coagulation activity results showed that oleanolic acid and ursolic acid could significantly prolong APTT and TT; quercetin could significantly shorten PT and TT; kaempferol and hesperetin could significantly shorten APTT, PT, and TT; and naringenin could significantly shorten APTT, PT, and TT and decrease the content of FIB compared with the blank group. All of the above revealed that quercetin, kaempferol, hesperetin and naringenin possessed significant procoagulant activity, while ursolic acid had anticoagulant activity in vitro.
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Affiliation(s)
- Juanjuan Zhang
- Zhengzhou City Key Laboratory of Medicinal Resources Research, Henan Engineering Research Center for Comprehensive Utilization of Edible and Medicinal Plant Resources, Huanghe Science and Technology College, Zhengzhou, China
- Henan Joint International Research Laboratory of Drug Discovery of Small Molecules, Zhengzhou, China
| | - Wei Zhang
- Zhengzhou City Key Laboratory of Medicinal Resources Research, Henan Engineering Research Center for Comprehensive Utilization of Edible and Medicinal Plant Resources, Huanghe Science and Technology College, Zhengzhou, China
- Henan Joint International Research Laboratory of Drug Discovery of Small Molecules, Zhengzhou, China
| | - Zhenhua Yin
- Zhengzhou City Key Laboratory of Medicinal Resources Research, Henan Engineering Research Center for Comprehensive Utilization of Edible and Medicinal Plant Resources, Huanghe Science and Technology College, Zhengzhou, China
- Henan Joint International Research Laboratory of Drug Discovery of Small Molecules, Zhengzhou, China
- National R & D Center for Edible Fungus Processing Technology, Henan University, Kaifeng, China
| | - Baocheng Yang
- Zhengzhou City Key Laboratory of Medicinal Resources Research, Henan Engineering Research Center for Comprehensive Utilization of Edible and Medicinal Plant Resources, Huanghe Science and Technology College, Zhengzhou, China
- Henan Joint International Research Laboratory of Drug Discovery of Small Molecules, Zhengzhou, China
| | - Wenyi Kang
- Zhengzhou City Key Laboratory of Medicinal Resources Research, Henan Engineering Research Center for Comprehensive Utilization of Edible and Medicinal Plant Resources, Huanghe Science and Technology College, Zhengzhou, China
- National R & D Center for Edible Fungus Processing Technology, Henan University, Kaifeng, China
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Host-Parasite Relationships in Porcine Ascariosis: Anticoagulant Potential of the Third Larval Stage of Ascaris suum as a Possible Survival Mechanism. Animals (Basel) 2021; 11:ani11030804. [PMID: 33805634 PMCID: PMC8002170 DOI: 10.3390/ani11030804] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 03/08/2021] [Accepted: 03/10/2021] [Indexed: 12/23/2022] Open
Abstract
Simple Summary Ascaris suum parasitises pigs all over the world causing a disease responsible for producing reductions in weight gains and damages to several organs of the infected animals that incur huge economic losses for the swine industry. While adult worms of this parasite are located in the small intestine of the host, their larval stages migrate through the bloodstream as an evolutionary advantageous strategy within a hostile environment that confronts host responses such as blood clots formation. The aim of this work is to study the ability of A. suum larvae to inhibit blood coagulation as a possible mechanism to control blood clots formation and facilitate their migration. The results showed that these larvae inhibited host blood coagulation and possessed molecules similar to those responsible for inhibiting blood coagulation in pigs. The anticoagulant effect of A. suum larvae could constitute a potential survival mechanism for the parasite. Therefore, developing new control strategies directed at this and similar processes could avoid A. suum larval migration and the establishment of adult worms in their definitive location, which is necessary to confront the damages and economic losses produced by this parasitosis. Abstract In order to evade the response of their hosts, helminth parasites have evolved precise and highly regulated mechanisms, including migration strategies of the larval stages. In regard to porcine ascariosis caused by Ascaris suum, its infective third-stage larvae (AsL3) undergo a complex migratory route through the bloodstream of their host before establishing in the small intestine to reach maturation. Despite the benefits attributed to this migration, blood clots formation could compromise larvae survival. The aim of this work was to study the interaction between the cuticle and excretory/secretory antigens of AsL3 and the host coagulation cascade. Larvae were obtained after incubating and hatching A. suum eggs, after which the antigenic extracts were produced. Their ability to disrupt the coagulation cascade was studied using anticoagulation and chromogenic assays, and techniques based on electrophoresis. The obtained results showed that both antigenic extracts possessed anticoagulant potential, being able to inhibit the intrinsic, extrinsic and/or common pathways of the blood coagulation cascade as well as the activated factor X. Moreover, three A. suum serpin proteins were identified as candidates to inhibit this host coagulation factor. To the best of our knowledge, this study shows, for the first time, the anticoagulant potential of the infective larvae of A. suum, which could be used by the parasite as a mechanism to facilitate its invasion and survival in the host.
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10
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Synthesis of Caffeic Acid Sulphonamide Derivatives and Preliminary Exploration of Their Biological Applications. Chem Res Chin Univ 2020. [DOI: 10.1007/s40242-020-0014-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Dirofilaria immitis possesses molecules with anticoagulant properties in its excretory/secretory antigens. Parasitology 2020; 147:559-565. [DOI: 10.1017/s0031182020000104] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
AbstractDirofilaria immitis is a parasitic nematode that survives in the circulatory system of suitable hosts for many years, causing the most severe thromboembolisms when simultaneous death of adult worms occurs. The two main mechanisms responsible for thrombus formation in mammals are the activation and aggregation of platelets and the generation of fibrin through the coagulation cascade. The aim of this work was to study the anticoagulant potential of excretory/secretory antigens from D. immitis adult worms (DiES) on the coagulation cascade of the host. Anticoagulant and inhibition assays respectively showed that DiES partially alter the coagulation cascade of the host and reduce the activity of the coagulation factor Xa, a key enzyme in the coagulation process. In addition, a D. immitis protein was identified by its similarity to the homologous serpin 6 from Brugia malayi as a possible candidate to form an inhibitory complex with FXa by sodium dodecyl sulfate polyacrylamide gel electrophoresis and mass spectrometry. These results indicate that D. immitis could use the anticoagulant properties of its excretory/secretory antigens to control the formation of blood clots in its immediate intravascular habitat as a survival mechanism.
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12
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Li C, Hu M, Jiang S, Liang Z, Wang J, Liu Z, Wang HMD, Kang W. Evaluation Procoagulant Activity and Mechanism of Astragalin. Molecules 2020; 25:E177. [PMID: 31906332 PMCID: PMC6983018 DOI: 10.3390/molecules25010177] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 12/24/2019] [Accepted: 12/26/2019] [Indexed: 11/19/2022] Open
Abstract
Astragalin, isolated from flowers of Rosa chinensis Jacq., is a kind of flavonoid, with anti-inflammatory, antioxidant, antiviral, analgesic, antibacterial, antiallergic, and antihepatotoxic effects. However, no studieson the procoagulant effect of astragalin have been reported. This study aimed to investigate the procoagulant activity of astragalin and its mechanism. Its procoagulant effect was investigated by activated partial thromboplastin time (APTT), thrombin time (TT), prothrombin time (PT), and fibrinogen (FIB) in vitro, and a rat model established by heparin sodium was used to evaluate the mechanism for the procoagulant effect in vivo. The results showed that astragalin had good procoagulant effects compared with the control group in vitro. Compared with the model group in vivo, astragalin could shorten the coagulation time and significantly increase the number of platelets. Meanwhile, astragalin could significantly reduce the effectual time of PT and APTT and increase the content of FIB. The contents of 6-keto-PGF1α and eNOS significantly decreased. Astragalin could increase whole blood viscosity (WBV), plasma viscosity (PV), erythrocyte sedimentation rate (ESR) and packedcell volume (PCV). All of the above revealed that astragalin had good procoagulant effects by promoting the intrinsic and extrinsic coagulation system.
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Affiliation(s)
- Changqin Li
- National R & D Center for Edible Fungus Processing Technology, Henan University, Kaifeng 475004, China; (C.L.); (M.H.); (S.J.); (Z.L.); (J.W.)
- Joint International Research Laboratory of Food & Medicine Resource Function, Kaifeng 475004, China
| | - Miyun Hu
- National R & D Center for Edible Fungus Processing Technology, Henan University, Kaifeng 475004, China; (C.L.); (M.H.); (S.J.); (Z.L.); (J.W.)
- Joint International Research Laboratory of Food & Medicine Resource Function, Kaifeng 475004, China
| | - Shengjun Jiang
- National R & D Center for Edible Fungus Processing Technology, Henan University, Kaifeng 475004, China; (C.L.); (M.H.); (S.J.); (Z.L.); (J.W.)
| | - Zhenhua Liang
- National R & D Center for Edible Fungus Processing Technology, Henan University, Kaifeng 475004, China; (C.L.); (M.H.); (S.J.); (Z.L.); (J.W.)
| | - Jinmei Wang
- National R & D Center for Edible Fungus Processing Technology, Henan University, Kaifeng 475004, China; (C.L.); (M.H.); (S.J.); (Z.L.); (J.W.)
- Joint International Research Laboratory of Food & Medicine Resource Function, Kaifeng 475004, China
| | - Zhenhua Liu
- National R & D Center for Edible Fungus Processing Technology, Henan University, Kaifeng 475004, China; (C.L.); (M.H.); (S.J.); (Z.L.); (J.W.)
- Joint International Research Laboratory of Food & Medicine Resource Function, Kaifeng 475004, China
| | - Hui-Min David Wang
- Graduate Institute of Biomedical Engineering, National Chung Hsing University, Taichung City 402, Taiwan
| | - Wenyi Kang
- National R & D Center for Edible Fungus Processing Technology, Henan University, Kaifeng 475004, China; (C.L.); (M.H.); (S.J.); (Z.L.); (J.W.)
- Joint International Research Laboratory of Food & Medicine Resource Function, Kaifeng 475004, China
- Kaifeng Key Laboratory of Functional Components in Health Food, Kaifeng 475004, China
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13
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Hao X, Zuo X, Kang D, Zhang J, Song Y, Liu X, Zhan P. Contemporary medicinal-chemistry strategies for discovery of blood coagulation factor Xa inhibitors. Expert Opin Drug Discov 2019; 14:915-931. [DOI: 10.1080/17460441.2019.1626821] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Xia Hao
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, Ji’nan, Shandong, PR China
| | - Xiaofang Zuo
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, Ji’nan, Shandong, PR China
| | - Dongwei Kang
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, Ji’nan, Shandong, PR China
| | - Jian Zhang
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, Ji’nan, Shandong, PR China
| | - Yuning Song
- Department of Clinical Pharmacy, Qilu Hospital of Shandong University, Jinan, China
| | - Xinyong Liu
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, Ji’nan, Shandong, PR China
| | - Peng Zhan
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, Ji’nan, Shandong, PR China
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