Nuclear transcription factors involved in immune response

Nuclear transcription factors involved in immune response represent a diverse group of proteins that orchestrate the genomic program of immune cells in response to external and internal stimuli. This category includes well-characterized families such as Nuclear Factor kappa B (NF-κB), Signal Transducers and Activators of Transcription (STATs), Nuclear Factor of Activated T-cells (NFAT), and Interferon Regulatory Factors (IRFs). These proteins act as molecular switches that, upon activation by signaling cascades triggered by cytokines or pathogens, translocate to the nucleus to bind specific DNA sequences and regulate the transcription of genes involved in inflammation, cell survival, and immune cell differentiation (Hayden & Ghosh, 2008; Villarino et al., 2017). Because of their central role in coordinating immune defenses, their aberrant activity is linked to a wide range of conditions, including rheumatoid arthritis, systemic lupus erythematosus, and various cancers (Müller & Rao, 2010; Tamura et al., 2008). Therapeutic strategies often target these factors indirectly through the inhibition of upstream kinases or directly by modulating their ability to interact with DNA or co-activators (Barnes, 2011).

Other names

Immune-related transcription factorsTranscription factors of the immune systemImmunomodulatory transcription factors

Therapeutic agents modulate these factors through several distinct mechanisms: glucocorticoids bind to the glucocorticoid receptor to physically sequester or antagonize NF-κB and AP-1; calcineurin inhibitors (e.g., cyclosporine) prevent the dephosphorylation and nuclear translocation of NFAT; JAK inhibitors block the phosphorylation and dimerization of STAT proteins; and proteasome inhibitors prevent the degradation of IκB, thereby keeping NF-κB sequestered in the cytoplasm (Hayden & Ghosh, 2008; Villarino et al., 2017; Müller & Rao, 2010; Barnes, 2011).