Abstract
The over-expression of collagenase IV in tumor tissues was found to be closely related to tumor metastasis. Collagenase IV has been therefore considered as one of the novel indicative molecules for tumor diagnosis and treatment. Based on phage display antibody library technique, a single-chain Fv specific for colbgenase IV was successfully cloned. This antibody, referred to as hCo4, was mainly composed of variable regions from heavy and liiht chains, with its molecular weight of 27 ku. The engineered antibody bound to collagenase IV specifically. The affinity of hCo4 was found to be the same as that of a single-chain antibody constructed from a monoclonal antibody to collagenase IV. Since hCo4 is the smallest among all the antibodies specific for collagenase IV and it is of human origin, it has a potential to be applied for tumor irnmunotherapy and for the study of the relationship between collagenase IV and tumor metastasis.
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Project supported by the National Natural Science Foundation of China (Grant No. 39470661) and Chinese Academy of Sciences Foundation for scientists returned.
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Tang, J., Yan, X., Liu, Y. et al. Production and characterization of a human single-chain Fv to collagenase IV. Sci. China Ser. C.-Life Sci. 41, 387–392 (1998). https://doi.org/10.1007/BF02882738
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DOI: https://doi.org/10.1007/BF02882738