Abstract
Antibody selection for antibody-drug conjugates (ADCs) has traditionally depended on its internalization into the target cell, although ADC efficacy also relies on recycling of the receptor-ADC complex, endo-lysosomal trafficking, and subsequent linker/antibody proteolysis. In this study, we observed that a bispecific anti-murine platelet-derived growth factor receptor beta (mPDGFRβ) x cotinine single-chain variable fragment (scFv)-kappa constant region (Cκ)-scFv fusion protein and cotinine-duocarmycin can form an ADC-like complex to induce cytotoxicity against mPDGFRβ expressing cells. Multiple anti-mPDGFRβ antibody candidates can be produced in this bispecific scFv-Cκ-scFv fusion protein format and tested for their ability to deliver cotinine-conjugated cytotoxic drugs, thus providing an improved approach for antibody selection in ADC development.
Original language | English |
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Pages (from-to) | 125-135 |
Number of pages | 11 |
Journal | Methods |
Volume | 154 |
DOIs | |
State | Published - 1 Feb 2019 |
Bibliographical note
Funding Information:This work was supported by the National Research Foundation funded by the Korean government (MSIP) (grant no. NRF-2017M3A9C8032204 , NRF-2015R1D1A1A09057154 and NRF-2015M3A9E6028949 ). This research was also partially supported by the New Drug Development Center, Asan Medical Center (2017-758).
Funding Information:
This work was supported by the National Research Foundation funded by the Korean government (MSIP) (grant no. NRF-2017M3A9C8032204, NRF-2015R1D1A1A09057154 and NRF-2015M3A9E6028949). This research was also partially supported by the New Drug Development Center, Asan Medical Center (2017-758).
Publisher Copyright:
© 2018 Elsevier Inc.
Keywords
- Antibody-drug conjugate
- Bispecific antibody
- Cotinine
- Duocarmycin