Project 5
Augmentation of anti-tumor efficacy of integrin αvβ3-specific CAR T cells
Prof. Dr. med. Sebastian Kobold
Abt. Klinische Pharmakologie, Klinikum der Universität München
Project Summary
In contrast to the very successful use of CD19-specific CAR T cells for the treatment of various leukemias and lymphomas, the therapeutic efficacy of CAR T cells against solid tumors has been very limited to date. One of the main reasons for this is the immunosuppressive tumor microenvironment. Preclinical studies have shown that equipping CAR T cells with accessory molecules such as co-receptors and chemokine receptors can significantly improve efficacy in such entities.
We were able to identify novel strategies that lead to a significant increase in CAR T cell function, including the modulation of transcription factors and the use of a cytokine superagonist. The aim of this project is to combine these novel strategies with chemokine receptors and to define the optimal T cell subsets for modification and thus significantly improve the therapeutic options.
Ataide, M. A., Komander, K., Knopper, K., Peters, A. E., Wu, H., Eickhoff, S., Gogishvili, T., Weber, J., Grafen, A., Kallies, A., Garbi, N., Einsele, H., Hudecek, M., Gasteiger, G., Holzel, M., Vaeth, M., & Kastenmuller, W. (2020). BATF3 programs CD8(+) T cell memory. Nat Immunol, 21(11), 1397-1407. doi:10.1038/s41590-020-0786-2
Monjezi, R., Miskey, C., Gogishvili, T., Schleef, M., Schmeer, M., Einsele, H., Ivics, Z., & Hudecek, M. (2017). Enhanced CAR T-cell engineering using non-viral Sleeping Beauty transposition from minicircle vectors. Leukemia, 31(1), 186-194. doi:10.1038/leu.2016.180
Sommermeyer, D., Hudecek, M., Kosasih, P. L., Gogishvili, T., Maloney, D. G., Turtle, C. J., & Riddell, S. R. (2016). Chimeric antigen receptor-modified T cells derived from defined CD8+ and CD4+ subsets confer superior antitumor reactivity in vivo. Leukemia, 30(2), 492-500. doi:10.1038/leu.2015.247
Wallstabe, L., Mades, A., Frenz, S., Einsele, H., Rader, C., & Hudecek, M. (2018). CAR T cells targeting alpha(v)beta(3) integrin are effective against advanced cancer in preclinical models. Adv Cell Gene Ther, 1(2). doi:10.1002/acg2.11