Systemic toxicity associated with heterogeneity in the stoichiometries and sites of drug attachment is a major hurdle to developing antibody-drug conjugates (ADCs) for cancer therapy. Junutula et al. engineer cysteine residues in constant domains to produce near-homogenous ADCs that are better tolerated than conventional ADCs, without any loss of antitumor activity.
- Jagath R Junutula
- Helga Raab
- William Mallet