Abstract

Blockade of the PD-L1/PD-1 pathway has proven to be a broadly effective cancer immunotherapy. FDA-approved therapeutic monoclonal antibodies (mAbs) targeting the pathway have high affinity, blocking capacity, and low antibody effector activity. A number of rat antimouse mAbs have been used to model cancer immunotherapy in mouse models. We set forth the amino acid sequences of mAbs specific for mouse PD-1 (29F.1A12) and PD-L1 (10F.9G2) and compare their avidities, blocking capacities, biological activities, and epitope recognition with other commonly used mAbs. Further manipulation of these sequences should facilitate better modeling of immunotherapy in mouse models and the generation of novel agents.

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