Nuclear factor of activated T-cells, cytoplasmic 2 (NFATC2) (NFATC2)

Nuclear factor of activated T-cells, cytoplasmic 2 (NFATC2), commonly referred to as NFAT1, is a transcription factor that plays a pivotal role in the immune system by regulating the expression of cytokines and other genes essential for T-cell activation [UniProt: Q13469]. In resting T-cells, NFAT1 is maintained in a phosphorylated state within the cytoplasm; however, upon T-cell receptor engagement and subsequent calcium influx, the phosphatase calcineurin dephosphorylates NFAT1, enabling its translocation into the nucleus [PMID: 11509610]. Once in the nucleus, NFAT1 binds to specific DNA sequences, often in cooperation with other transcription factors like AP-1, to induce the transcription of genes such as interleukin-2 (IL-2) and TNF-alpha [PMID: 24501182]. This pathway is a major therapeutic target in transplantation and autoimmune diseases, where calcineurin inhibitors like cyclosporine and tacrolimus are used to block NFAT1 activation and suppress the immune response [StatPearls: Calcineurin Inhibitors]. Beyond its role in immunity, NFAT1 has been implicated in the progression of various cancers, where it can promote tumor cell survival, migration, and inflammatory signaling within the tumor microenvironment [PMID: 24501182].

Other names

NFAT1NFATPNuclear factor of activated T-cells 1NFAT-c2

Inhibition of calcineurin-mediated dephosphorylation prevents the nuclear translocation of NFAT, thereby suppressing the transcription of pro-inflammatory cytokines like IL-2.