Zinc-finger and other zinc-dependent transcription factors involved in immune and cytokine regulation

Zinc-finger and other zinc-dependent transcription factors represent a diverse and essential class of proteins that coordinate the development and functional responses of the immune system. These factors, such as the Ikaros family (IKZF1-5), GATA3, and BCL6, utilize zinc ion-coordinated motifs to bind specific DNA sequences or mediate protein-protein interactions, thereby controlling the transcription of genes critical for lymphocyte lineage commitment and cytokine production. In the context of disease, dysregulation of these factors is frequently linked to hematologic malignancies, autoimmune disorders, and chronic inflammatory conditions. Therapeutically, this group has gained significant prominence through the use of molecular glues, such as thalidomide analogs (lenalidomide, pomalidomide), which induce the proteasomal degradation of specific zinc-finger proteins like Aiolos and Ikaros to treat multiple myeloma and other B-cell dyscrasias. Their central role in immune homeostasis makes them high-value targets for both oncology and immunology drug discovery.

Other names

Zinc-finger transcription factorsZinc-dependent immune regulatorsC2H2 zinc-finger proteinsIkaros family zinc-finger proteinsGATA family transcription factors

Targeted protein degradation via E3 ubiquitin ligase recruitment (molecular glues); Inhibition of DNA binding; Modulation of transcriptional activity