Patent ID: 11365392

Abstract:
The present invention relates to a method for ex vivo generating and expanding MHCII restricted CD4+ Foxp3+ regulatory T cells, and therapeutic uses thereof. The inventors here demonstrated the optimal conditions for inducing Foxp3 expression in naive CD3+ CD4+ TCRαβ+ MHCII restricted T following polyclonal or following antigen-specific activation. They also developed an experimental procedure to generate autologous CD8+ T cell lines functionally committed to lyse tumor-antigen specific FOXP3 expressing TCRαβ+ MHCII restricted T cells, pathogenic CD4+ T cells that favour tumor cell immune evasion. In particular, the present invention relates to a method for generating ex vivo MHCII restricted CD4+ Foxp3+ regulatory T cells having the following phenotype: CD3+ CD4+ Foxp3+.