Long noncoding RNA H19 interacts with polypyrimidine tract‐binding protein 1 to reprogram hepatic lipid homeostasis
Chune Liu, Zhihong Yang, Jianguo Wu, Li Zhang, Sangmin Lee, Dong‐Ju Shin, Melanie Tran, Li Wang – 15 November 2017 – H19 is an imprinted long noncoding RNA abundantly expressed in embryonic liver and repressed after birth. We show that H19 serves as a lipid sensor by synergizing with the RNA‐binding polypyrimidine tract‐binding protein 1 (PTBP1) to modulate hepatic metabolic homeostasis. H19 RNA interacts with PTBP1 to facilitate its association with sterol regulatory element‐binding protein 1c mRNA and protein, leading to increased stability and nuclear transcriptional activity.