Nuclear factor of activated T-cells, cytoplasmic (NFATc) (NFATc)

Nuclear factor of activated T-cells, cytoplasmic (NFATc) is a family of transcription factors, including NFATc1, NFATc2, NFATc3, and NFATc4, that are essential for the immune response, particularly in T-cell activation and the production of cytokines like interleukin-2 (IL-2) [6, 11, 16]. These proteins are regulated by the calcium-dependent phosphatase calcineurin; in response to elevated intracellular calcium, calcineurin dephosphorylates NFATc, enabling its translocation from the cytoplasm to the nucleus where it initiates gene transcription [11, 13, 16]. This signaling pathway is the primary target of major immunosuppressive drugs, including cyclosporine and tacrolimus, which are widely used to prevent organ transplant rejection and treat autoimmune conditions [3, 4, 13]. In addition to its role in the immune system, NFATc is involved in cardiac development, bone homeostasis, and the progression of several types of cancer [6, 14, 20]. In oncogenic contexts, NFATc often promotes cell survival, proliferation, and metastasis, leading to its investigation as a potential target for cancer therapy [2, 5, 18]. The development of more specific NFATc inhibitors remains a significant area of research to reduce the side effects associated with broad calcineurin inhibition [3, 4].

Other names

NFATNF-ATNFATc1NFATc2NFATc3NFATc4NFAT1NFAT2NFAT3NFAT4Nuclear factor of activated T-cells 1Nuclear factor of activated T-cells 2Nuclear factor of activated T-cells 3Nuclear factor of activated T-cells 4NFATpNFATx

Inhibition of the phosphatase calcineurin, which prevents the dephosphorylation and subsequent nuclear translocation of NFATc proteins, thereby blocking the transcription of pro-inflammatory cytokines such as interleukin-2 (IL-2) [3, 11, 13].