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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

A bispecific antibody enhances the fibrinolytic potency of single-chain urokinase.

A monoclonal antibody specific for an epitope at the amino terminus of the beta chain of fibrin and a monoclonal antibody that binds both one- and two-chain high molecular weight urokinase were chemically cross-linked [using N-succinimidyl 3-(2-pyridyldithio)propionate and 2-iminothiolane]. The chemically modified material was heterogeneous, ranging in molecular size from tetramers to monomers and containing the two antibodies in various ratios. Nevertheless, fractions of a molecular size larger than a monomer were capable of binding fibrin and urokinase simultaneously in a radioimmunoassay. These fractions also enhanced fibrinolysis by high molecular weight single-chain urokinase (scuPA) by 50-fold and plasma clot lysis by 5-fold. Whereas scuPA significantly decreased the concentration of fibrinogen in plasma clot assay supernatants, scuPA in association with the bispecific antibody did not.[1]

References

  1. A bispecific antibody enhances the fibrinolytic potency of single-chain urokinase. Charpie, J.R., Runge, M.S., Matsueda, G.R., Haber, E. Biochemistry (1990) [Pubmed]
 
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