We developed an anti-CNTN4 antibody (GENA-104A16) and an anti-APP antibody (5A7) that blocked the binding between CNTN4 and APP...Furthermore, elevated CNTN4 levels were associated with poor prognosis and negatively correlated with various cytotoxic immune-related markers. These results suggest that CNTN4-APP is an inhibitory checkpoint in T cells and represents a promising therapeutic strategy for cancer immunotherapy.
Therefore, we constructed B16F10 murine melanoma cells overexpressing WNT5a (B16F10/WNT5a) to assess the anti-tumor efficacy by administering GENA-104A16, the anti-CNTN4 humanized monoclonal antibody, in the syngeneic mice model with increased expression of CNTN4 induced by WNT5a, and in vivo efficacy by treatment of GENA-104A16 is under assessment in the B16F10/WNT5a syngeneic mice model. Through the investigation, we expect to support the rationale and strategy for a combination therapy approach of GENA-104A16 for non-responding patients to immunotherapy.
almost 3 years ago
PD(L)-1 Biomarker • IO biomarker
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APP (Amyloid Beta Precursor Protein) • WNT5A (Wnt Family Member 5A) • NFATC1 (Nuclear Factor Of Activated T Cells 1) • RELA (RELA Proto-Oncogene) • WNT7B (Wnt Family Member 7B)
And the expression level of CNTN4 on tumors was essential for the anti-tumor activity of GENA-104A16. Therefore, the expression of CNTN4 could be a potential biomarker for monitoring clinical responses to anti-CNTN4 therapy.