Argonaute-2 regulates the proliferation of adult stem cells in planarian

Key Laboratory of Stem Cell Biology and Laboratory of Nucleic Acid and Molecular Medicine, Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences and Shanghai Jiao-Tong University School of Medicine, Shanghai 200025, China; Department of Cardiology, Changhai Hospital, Shanghai 200433, China; Graduate School of Chinese Academy of Sciences, Beijing 100049, China; Present address: Department of Pediatrics, University of Alberta, Edmonton, AB, Canada T6G 2S2