Semi-Automated Cell Panning for Efficient Isolation of FGFR3-Targeting Antibody > REFERENCE LIBRARY

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[EZ-Cytox] Semi-Automated Cell Panning for Efficient Isolation of FGFR3-Targeting Antibody

김상진
2022-01-28 09:00 2,429 1

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년도
2021
제품명
EZ-Cytox
학술지명
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES

Phage display technology is a widely used practical tool for isolating binding molecules against the desired targets in phage libraries. In the case of targeting the membrane protein with its natural conformation, conventional bio-panning has limitations on the efficient screening of the functionally relevant antibodies. To enrich the single-chain variable fragment (scFv) pools for recognizing the natural conformation of the membrane targets, the conventional bio-panning and screening process was modified to include the semi-automated cell panning protocol. Using FGFR3-overexpressing patient-derived cancer cells, biotin-X-DHPE was introduced and coupled to Streptavidin-coated magnetic beads for use in the solution-phage bio-panning procedure. The resulting clones of scFv were compared to the diversity of the binding region, especially on CDR-H3. The clones enriched further by cell-based panning procedure possessed a similar binding site and the CDR-H3 loop structure. The resulting antibodies inhibited cell growth and induced target degradation. This process may be a useful tool for screening biologically related antibodies that recognize natural conformational structure on cell membrane protein. Furthermore, cell-based panning has the potential to further expand to a high-throughput screening (HTS) system and automation process.

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김상진
2022-01-28 09:00
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