Target intelligence / Profile preview

Nuclear Factor of Activated T Cells, Cytoplasmic

Molecular classification
Transcription factor
01

Overview

Nuclear factor of activated T cells (NFAT) is a family of transcription factors critical for gene expression in the immune system, especially for cytokine genes. The family consists of five members: NFATc1, NFATc2, NFATc3, NFATc4, and NFAT5. NFATc1–NFATc4 are regulated by calcium signaling via calcineurin, while NFAT5 responds to osmotic stress. Classical NFAT isoforms are activated by calcineurin-mediated dephosphorylation, leading to nuclear translocation and DNA binding. NFATs regulate cytokine production, T cell activation/differentiation, and play roles in development and disease. Immunosuppressive drugs like cyclosporin A and FK506 inhibit calcineurin, blocking NFAT activation and suppressing T-cell mediated immunity. Dysregulation is linked to autoimmune diseases, inflammatory disorders, cardiovascular diseases, neurodevelopmental disorders, and cancers.

Other names
NFATNFATc1NFAT2NFATcNFATc2NFAT1NFATpNFATc3NFAT4NFATxNFATc4NFAT3NFAT5TonEBPOREBP
02

Mechanism of action

Inhibition of calcineurin activity, blocking NFAT dephosphorylation and nuclear import

03

Biological functions

Regulation of cytokinesT cell activationT cell differentiationB cell functionCardiac muscle developmentSkeletal muscle developmentNervous system formationImmune response modulationOsmoprotection
04

Disease associations

Autoimmune diseasesInflammatory disordersIBDsCardiovascular diseasesNeurodevelopmental disordersCancer
05

Safety considerations

ImmunosuppressionIncreased risk of infectionIncreased risk of certain cancers
06

Interacting drugs

Cyclosporin A

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