Abstract

Expression of recombinant human anti-TNF-�± scFv-Fc in Arabidopsis thaliana seeds

Author(s): N. Yao, L. Ai, Y.Y. Dong, X.M. Liu, D.Z. Wang, N. Wang, X.W. Li,F.W. Wang, XK. Li, H.Y. Li and C. Jiang

Recombinant human anti-tumor necrosis factor (TNF)-α scFv-Fc was expressed in TKO mutant Arabidopsis thaliana seeds using plant-specific codons. Immunoblotting using a human IgG1 antibody detected the expression of anti-TNF-α proteins in plants. Results from qRT-PCR analysis demonstrated that the time of harvest significantly affected the protein yield and quality. Our results indicate that the Phaseolus vulgaris β-phaseolin promoter directed anti-TNF-α scFv-Fc expression in A. thaliana seeds, with a maximum yield obtained at 20-days of development. Although the yield of anti-TNF-α scFv-Fc protein was not very high, accumulation of recombinant proteins in seeds is an attractive and simple method that can be used to purify biologically active anti-TNF-α scFv-Fc.

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