ZBTB12 (zinc finger and BTB domain containing 12) is a transcriptional repressor that plays critical roles in cellular differentiation, disease progression, and epigenetic regulation. ZBTB12 functions as a molecular barrier preventing dedifferentiation of human pluripotent stem cells by fine-tuning expression of human endogenous retrovirus H (HERVH) and associated long non-coding RNAs, ensuring unidirectional cell fate transitions toward developmentally advanced states 1. The protein acts as a transcriptional repressor of TOMM7, a key regulator of mitophagy, with ZBTB12 knockdown improving mitochondrial homeostasis in diabetic kidney disease models 2. In cancer contexts, ZBTB12 promotes tumor progression through multiple mechanisms: it transcriptionally activates DNMT3B leading to ALDH1A2 methylation and silencing in breast cancer 3, and serves as a prognostic marker in colorectal cancer 4. ZBTB12 is also regulated by HOXA6 in gastric cancer-associated fibroblasts, where it promotes malignant phenotypes 5. Importantly, ZBTB12 methylation status correlates with cardiovascular disease risk, with hypomethylation associated with myocardial infarction risk and inflammatory blood cell parameters 67. These findings establish ZBTB12 as a multifunctional transcriptional regulator with significant roles in development, disease progression, and potential therapeutic applications.