RECEPTOR TYROSINE KINASE-LIKE ORPHAN RECEPTOR 1 BINDING PROTEINS AND RELATED COMPOSITIONS AND METHODS

摘要

The present disclosure relates to protein molecules that specifically bind to receptor tyrosine kinase-like orphan receptor 1 (ROR1), which may have at least one humanized ROR1-binding domain. Such molecules are useful for the treatment of cancer. The protein molecule binding to ROR1 may have a second binding domain that binds to another target. In one embodiment, multispecific polypeptide molecules bind both ROR1-expressing cells and the T-cell receptor complex on T-cells to induce target-dependent T-cell cytotoxicity, activation, and proliferation. The disclosure also provides pharmaceutical compositions comprising the ROR1-binding poypeptide molecules, nucleic acid molecules encoding these polypeptides and methods of making these molecules.