Therapies based on control of regulatory T cell stability and function via a Neuropilin-1:Semaphorin axis

摘要

The invention is directed to treatment of cancer, infections and various inflammatory and autoimmune conditions by affecting regulatory T cell stability and function via a Neuropilin-1 :Semaphorin axis. The present invention satisfies this and other needs by demonstrating that the regulatory T cell (Treg)-restricted neuropilin-1 (Nrp 1) interacts with the cell surface ligand semaphorin-4a (Sema4a) (e.g., on conventional T cells (Tconv), conventional dendritic cells (cDCs), and/or plasmacytoid dendritic cells (pDCs)) to potentiate reg function and enhance their survival at inflammatory sites.