A defucosylated anti‑CD44 monoclonal antibody 5‑mG2a‑f exerts antitumor effects in mouse xenograft models of oral squamous cell carcinoma.

ABSTRACT: CD44 is widely expressed on the surface of most tissues and all hematopoietic cells, and regulates many genes associated with cell adhesion, migration, proliferation, differentiation, and survival. CD44 has also been studied as a therapeutic target in several cancers. Previously, an anti‑CD44 monoclonal antibody (mAb), C44Mab‑5 (IgG1, kappa) was established by immunizing mice with CD44‑overexpressing Chinese hamster ovary (CHO)-K1 cells. C44Mab‑5 recognized all CD44 isoforms, and showed high sensitivity for flow cytometry and immunohistochemical analysis in oral cancers. However, as the IgG1 subclass of C44Mab‑5 lacks antibody‑dependent cellular cytotoxicity (ADCC) and complement‑dependent cytotoxicity (CDC), the antitumor activity of C44Mab‑5 could not be determined. In the present study,

SUBMITTER: Takei J 

PROVIDER: S-EPMC7550977 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature