Abstract
In our previous study, we have produced a neutralizing mAb of vascular endothelial growth factor receptor 3 (VEGFR-3), specifically BDD073, which could inhibit angiogenesis in the CAM model. However, the clinical application of BDD073 is restricted due to its mouse origin, which might cause human anti-mouse antibody reactions. Herein, we generated functional recombinant single-chain variable fragments (scFv) from mAb BDD073 producing mouse hybridoma cells. The scFv gene containing variable regions of heavy and light chains of BDD073 was cloned into an expression vector with trx tag and expressed in Escherichia coli BL21 (DE3). The recombinant scFv was purified and refolded with Ni-NTA agarose metal affinity column. The bacterially expressed scFv showed moderate potency and specificity to the human VEGFR-3. It may serve as a potential candidate of anti-VEGFR3 treatment for biotechnological and therapeutic applications.
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