The use of bispecific antibodies to target tumour-specific epitopes presented by MHC molecules in tumour tissue is a promising avenue for cancer immunotherapy. Here the authors use a mass-spectrometry guided analysis to identify off-target MHC-peptide complexes that bind to TCR-like antibodies next to the target peptide, enabling a novel approach to monitoring of antibody specificity during clinical maturation and development.
- Estelle Marrer-Berger
- Annalisa Nicastri
- Nicola Ternette
