TSC22 domain family member 4 (TSC22D4)

TSC22 domain family member 4 (TSC22D4) is a DNA-binding transcriptional repressor of the TSC22 domain family, characterized by an evolutionarily conserved TSC box with a leucine zipper motif[1][2]. TSC22D4 regulates glucose homeostasis and insulin sensitivity by repressing insulin signaling targets in the liver and acts as a negative regulator of lipid gene expression in hepatocytes[1][2]. It interacts with Akt1, modulating Akt phosphorylation and downstream pathways critical for metabolic flux, cell proliferation, and survival. TSC22D4 is implicated in cellular senescence, hepatic metabolic adaptation to stress, liver injury, cancer cachexia, and as an output marker in hepatic wasting metabolism[2][3][6]. Elevated hepatic expression correlates with insulin resistance and metabolic dysfunction in human and murine obesity and diabetes models, but TSC22D4 itself is not yet a direct therapeutic drug target[2][7].

Other names

THG1THG-1TILZ2TSC22 domain family protein 4TSC22-related-inducible leucine zipper protein 2sperm acrosome developmental regulator

Not a primary therapeutic target; no approved drugs targeting TSC22D4, but RNA interference and genetic modulation in preclinical models improve insulin resistance and hyperglycemia[2].