Study of the sites of plasminogen molecule which are responsible for inhibitory effect of Lys-plasminogen on platelet aggregation
Plasminogen/plasmin system is involved in such important processes as thrombosis, inflammation and cancer. Plasmin and plasminogen mediate their action through plasminogen-binding proteins on the cell surface. Lys-plasminogen, but not Glu-plasminogen, shows inhibitory effect on platelet aggregation induced by ADP, collagen and thrombin in preparations of both: platelet-rich plasma and washed platelets. We have shown that the kringle domains of Lys-plasminogen mediate interaction of this proenzyme with platelet- surface proteins. The aim of the work is to study the role of certain kringle domains in the inhibitory effect of Lys-plasminogen and to determine possible plasminogen-binding proteins on the platelet surface. All studied plasminogen fragments (K1-3, K4 and K5) abolished the inhibitory effect of Lys-plasminogen on platelet aggregation. We observed that K5 was more effective than K1-3 and K4. Biotin-labeled Lys-plasminogen, Glu-plasminogen and plasminogen fragment K1-3 possessed the highest affinity for actin, whereas the binding of biotin-labeled mini-plasminogen and K4 to actin was negligible. We have suggested that inhibitory effect of Lys-plasminogen is due to the interaction of kringle domains of this proenzyme with membrane-bound proteins which are exposed on the platelet surface during activation and are involved in thrombus formation.
Medienart: |
Artikel |
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Erscheinungsjahr: |
2014 |
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Erschienen: |
2014 |
Enthalten in: |
Zur Gesamtaufnahme - volume:86 |
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Enthalten in: |
Ukrainian biochemical journal - 86(2014), 5 vom: 01. Sept., Seite 82-8 |
Sprache: |
Englisch |
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Beteiligte Personen: |
Roka-Moya, Y M [VerfasserIn] |
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Themen: |
9001-32-5 |
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Anmerkungen: |
Date Completed 17.04.2015 Date Revised 13.11.2019 published: Print Citation Status MEDLINE |
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Förderinstitution / Projekttitel: |
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PPN (Katalog-ID): |
NLM247499862 |
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245 | 1 | 0 | |a Study of the sites of plasminogen molecule which are responsible for inhibitory effect of Lys-plasminogen on platelet aggregation |
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500 | |a Date Completed 17.04.2015 | ||
500 | |a Date Revised 13.11.2019 | ||
500 | |a published: Print | ||
500 | |a Citation Status MEDLINE | ||
520 | |a Plasminogen/plasmin system is involved in such important processes as thrombosis, inflammation and cancer. Plasmin and plasminogen mediate their action through plasminogen-binding proteins on the cell surface. Lys-plasminogen, but not Glu-plasminogen, shows inhibitory effect on platelet aggregation induced by ADP, collagen and thrombin in preparations of both: platelet-rich plasma and washed platelets. We have shown that the kringle domains of Lys-plasminogen mediate interaction of this proenzyme with platelet- surface proteins. The aim of the work is to study the role of certain kringle domains in the inhibitory effect of Lys-plasminogen and to determine possible plasminogen-binding proteins on the platelet surface. All studied plasminogen fragments (K1-3, K4 and K5) abolished the inhibitory effect of Lys-plasminogen on platelet aggregation. We observed that K5 was more effective than K1-3 and K4. Biotin-labeled Lys-plasminogen, Glu-plasminogen and plasminogen fragment K1-3 possessed the highest affinity for actin, whereas the binding of biotin-labeled mini-plasminogen and K4 to actin was negligible. We have suggested that inhibitory effect of Lys-plasminogen is due to the interaction of kringle domains of this proenzyme with membrane-bound proteins which are exposed on the platelet surface during activation and are involved in thrombus formation | ||
650 | 4 | |a Journal Article | |
650 | 7 | |a Actins |2 NLM | |
650 | 7 | |a Peptide Fragments |2 NLM | |
650 | 7 | |a Thrombospondins |2 NLM | |
650 | 7 | |a lysyl-plasminogen |2 NLM | |
650 | 7 | |a miniplasminogen |2 NLM | |
650 | 7 | |a Fibrinogen |2 NLM | |
650 | 7 | |a 9001-32-5 |2 NLM | |
650 | 7 | |a Plasminogen |2 NLM | |
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650 | 7 | |a Thrombin |2 NLM | |
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650 | 7 | |a Fibrinolysin |2 NLM | |
650 | 7 | |a EC 3.4.21.7 |2 NLM | |
700 | 1 | |a Zhernossekov, D D |e verfasserin |4 aut | |
700 | 1 | |a Yusova, E I |e verfasserin |4 aut | |
700 | 1 | |a Kapustianenko, L G |e verfasserin |4 aut | |
700 | 1 | |a Grinenko, T V |e verfasserin |4 aut | |
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