Tumor-agnostic cancer therapy using antibodies targeting oncofetal chondroitin sulfate.
Vidal-Calvo, E.E., Martin-Salazar, A., Choudhary, S., Dagil, R., Raghavan, S.S.R., Duvnjak, L., Nordmaj, M.A., Clausen, T.M., Skafte, A., Oberkofler, J., Wang, K., Agerbaek, M.O., Loppke, C., Jorgensen, A.M., Ropac, D., Mujollari, J., Willis, S., Garcias Lopez, A., Miller, R.L., Karlsson, R.T.G., Goerdeler, F., Chen, Y.H., Colaco, A.R., Wang, Y., Lavstsen, T., Martowicz, A., Nelepcu, I., Marzban, M., Oo, H.Z., Orum-Madsen, M.S., Wang, Y., Nielsen, M.A., Clausen, H., Wierer, M., Wolf, D., Gogenur, I., Theander, T.G., Al-Nakouzi, N., Gustavsson, T., Daugaard, M., Salanti, A.(2024) Nat Commun 15: 7553-7553
- PubMed: 39215044 
- DOI: https://doi.org/10.1038/s41467-024-51781-0
- Primary Citation of Related Structures:  
8P2E - PubMed Abstract: 
Molecular similarities between embryonic and malignant cells can be exploited to target tumors through specific signatures absent in healthy adult tissues. One such embryonic signature tumors express is oncofetal chondroitin sulfate (ofCS), which supports disease progression and dissemination in cancer. Here, we report the identification and characterization of phage display-derived antibody fragments recognizing two distinct ofCS epitopes. These antibody fragments show binding affinity to ofCS in the low nanomolar range across a broad selection of solid tumor types in vitro and in vivo with minimal binding to normal, inflamed, or benign tumor tissues. Anti-ofCS antibody drug conjugates and bispecific immune cell engagers based on these targeting moieties disrupt tumor progression in animal models of human and murine cancers. Thus, anti-ofCS antibody fragments hold promise for the development of broadly effective therapeutic and diagnostic applications targeting human malignancies.
- Centre for Translational Medicine and Parasitology, Department of Immunology and Microbiology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen University Hospital, Copenhagen, Denmark. elena@sund.ku.dk.
Organizational Affiliation: 

















