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Journal of Biomedicine and Biotechnology
Volume 2011, Article ID 519652, 7 pages
Research Article

DLBS1033, A Protein Extract from Lumbricus rubellus, Possesses Antithrombotic and Thrombolytic Activities

1Division of Protein Biochemistry and Molecular Pharmacology, Dexa Laboratories of Biomolecular Sciences, PT Dexa Medica, Industri Selatan V Block PP no. 7, Kawasan Industri Jababeka II, Cikarang 17550, Indonesia
2Department of Food Science and Technology, Bogor Agricultural University, Fateta Building Kampus IPB Darmaga, Bogor 16680, Indonesia

Received 9 November 2010; Revised 17 December 2010; Accepted 15 January 2011

Academic Editor: Michael Kalafatis

Copyright © 2011 Jessica Trisina et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The medicinal value of earthworm has been widely known since the history of Asian ancient medicine. This present study aims to determine the mechanism of action and effect of a standardized extract of Lumbricus rubellus named as DLBS1033. The fibrinogen degradation, antiplatelet aggregation, and ex vivo antithrombotic assay using human blood were performed to study antithrombotic activity. Fibrin plate and clot lysis assay were also done to examine thrombolytic properties. DLBS1033 was found to possess fibrinogenolytic activity on α-, β-, and γ-chain of fibrinogen. It also induced antiplatelet aggregation and prolonged blood clotting time, which further confirmed its antithrombotic properties. In addition, thrombolytic properties of DLBS1033 were shown with its fast and long-acting fibrinolytic activity, as well as its effective blood clot lysis activities. In conclusion, DLBS1033 conferred antithrombotic and thrombolytic action which could be used as a safe and promising oral thrombolytic drug.