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Article Abstract
Single chain fragment variable (scFv) is a small molecule antibody comprising of only the variable region of heavy and light chain responsible for antigen binding. For dengue disease, the Fc region of antibody molecule was reported to be involved with dengue complication caused by Antibody-dependent enhancement (ADE). We attempted to produce small molecule scFv human monoclonal antibody (HuMAb), which lacking the Fc portion to eliminate the ADE effect of the IgG. This scFv antibody was produced in Escherichia coli. The biologically active form of scFv antibody was successfully generated. 23-1C2D2-scFv showed neutralizing activity similar to the IgG obtained from parental hybridoma, but lacked enhancing activity in all studied concentrations. This antibody was targeted to the 101WXN103 motif of dengue envelop protein domain II, studied by western blot analysis with truncated E protein and random peptide phage display. This scFv is verified as a candidate for further development as therapeutic candidate for DENV infection.
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| http://dx.doi.org/10.1016/j.biologicals.2018.10.003 | DOI Listing |
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