A new generation of multivalent antibody-recruiting molecules (ARMs) with dual-targeting
tumor-binding termini (TBT), including hyaluronic acid targeting CD44 and nanobody
7D12 or peptide GE11 targeting EGFR, was constructed for cancer immunotherapy. The
7D12 or GE11 were assembled onto β-cyclodextrin-grafted hyaluronic acid (HACD) with
multivalent rhamnose via host-guest interaction to form macromolecule complexes. The
immunological studies proved that these complexes had dual-targetability on CD44 and
EGFR and the rhamnose on HACD could recruit anti-Rha antibodies to mediate cytotoxicity
against the targeted tumor cells. This bispecific ARM strategy provides a platform
for cancer immunotherapy.
Key words
antibody-recruiting complex - cancer immunotherapy - dual-targeting - hyaluronic acid
- host-guest interaction - 7D12 - GE11