Department of Human and Molecular Genetics, Virginia Commonwealth University, Richmond, VA 23298, United States.
Department of Biostatistics, Virginia Commonwealth University, Richmond, VA 23298, United States.
Department of Human and Molecular Genetics, Virginia Commonwealth University, Richmond, VA 23298, United States ; Massey Cancer Center, Virginia Commonwealth University, Richmond, VA 23298, United States ; VCU Institute of Molecular Medicine, Virginia Commonwealth University, Richmond, VA 23298, United States.
Staphylococcal nuclease domain containing-1 (SND1) is overexpressed in humanhepatocellular carcinoma (HCC) patients and promotes tumorigenesis by humanHCC cells. We now document that SND1 increases angiotensin II type 1 receptor (AT1R) levels by increasing AT1RmRNA stability. This results in activation of ERK, Smad2 and subsequently the TGFβ signaling pathway, promoting epithelial-mesenchymal transition (EMT) and migration and invasion by humanHCC cells. A positive correlation was observed between SND1 and AT1R expression levels in humanHCC patients. Small molecule inhibitors of SND1, alone or in combination with AT1R blockers, might be an effective therapeutic strategy for late-stage aggressiveHCC.