WNT 1 (IMAGE) Rice University Caption Rice University graduate student Joseph Massey sets up an experiment to study the WNT signaling pathway in developing cell lines. The pathway plays a central role in cell differentiation as organisms develop. Credit Jeff Fitlow/Rice University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.