Ribosome Display and Selection of Human Anti-Placental Growth Factor scFv Derived from Ovarian Cancer Patients

Authors: Li, Fang; Su, Pingping; Lin, Chao; Li, Hong; Cheng, Jiajing; Shi, Donglu

Source: Protein and Peptide Letters, Volume 17, Number 5, May 2010 , pp. 585-590(6)

Publisher: Bentham Science Publishers

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Abstract:

Ribosome display is a powerful cell-free technology to select a desired antibody together with its encoding mRNA. In this study, a human single-chain variable fragment (scFv) library was generated from the peripheral blood lymphocyte RNA of 10 ovarian cancer patients and then panned against bead-conjugated human PlGF, a protein that may contribute to the growth and metastasis of ovarian cancer. A selected scFv antibody was evaluated by Western blot and its affinity constant to the PlGF was determined by noncompetitive enzyme immunoassay. This study highlights the ribosomal display technology for the selection of human antibody from patient-derived gene pools.

Keywords: Ribosome display; In vitro selection; Antibody engineering; PlGF; scFv; Ovarian cancer

Document Type: Research article

DOI: http://dx.doi.org/10.2174/092986610791112729

Publication date: 2010-05-01

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Protein & Peptide Letters publishes short papers in all important aspects of protein and peptide research, including structural studies, recombinant expression, function, synthesis, enzymology, immunology, molecular modeling, drug design etc. Manuscripts must have a significant element of novelty, timeliness and urgency that merit rapid publication. Reports of crystallisation, and preliminary structure determinations of biologically important proteins are acceptable. Purely theoretical papers are also acceptable provided they provide new insight into the principles of protein/peptide structure and function.