Discrimination Between Fibrin and Fibrinogen by a Monoclonal Antibody Against a Synthetic Peptide
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Circulating soluble fibrin, observed in the blood of patients with ongoing intravascular coagulation, is generated from the plasma protein fibrinogen by the limited proteolytic action of thrombin. We report the production of a monoclonal antibody that discriminates between fibrin and fibrinogen in blood. The synthetic hexapeptide Gly-Pro-Arg-Val-Val-Glu, representing the amino terminus of the alpha chain of human fibrin, was used as immunogen. This hexapeptide is located within the A alpha chain of fibrinogen but becomes the amino terminus of the fibrin alpha chain, after fibrinopeptide A is removed by the action of thrombin, and thus becomes accessible for antibody binding. The monoclonal antibody we have prepared can discriminate between fibrin and fibrinogen and thus can be used in assay systems to quantitate soluble fibrin or, potentially, to image fibrin-rich thrombi.
The evolution of fibrin-specific targeting strategies.
Stefanelli V, Barker T J Mater Chem B. 2018; 3(7):1177-1186.
PMID: 29416866 PMC: 5798253. DOI: 10.1039/C4TB01769B.
Ultrasoft microgels displaying emergent platelet-like behaviours.
Brown A, Stabenfeldt S, Ahn B, Hannan R, Dhada K, Herman E Nat Mater. 2014; 13(12):1108-1114.
PMID: 25194701 PMC: 4239187. DOI: 10.1038/nmat4066.
Discovery of an uncovered region in fibrin clots and its clinical significance.
Hisada Y, Yasunaga M, Hanaoka S, Saijou S, Sugino T, Tsuji A Sci Rep. 2013; 3:2604.
PMID: 24008368 PMC: 3764439. DOI: 10.1038/srep02604.
Antibody imaging in the evaluation of cardiovascular diseases.
Khaw B, Narula J J Nucl Cardiol. 1994; 1(5 Pt 1):457-76.
PMID: 9420730 DOI: 10.1007/BF02961600.
New strategies in the determination of fibrin and fibrin(ogen) derivatives by monoclonal antibodies.
Nieuwenhuizen W Blut. 1988; 57(5):285-91.
PMID: 3058234 DOI: 10.1007/BF00320354.