Cell Death Induced by Uridine 5'-triphosphate (UTP) in Contrast to Adenosine 5'-triphosphate (ATP) in Human Epidermoid Carcinoma Cells (A-431)

Abstract

Extracellular ATP seems to act via degradation to adenosine and consecutive induction of apoptosis. In contrast, we were not able to demonstrate analogous mechanisms for cell death mediated by extracellular UTP, but were able to provide some evidence of classical ligand-receptor action of uncleaved UTP on A-431 cells.