About the Authors
State Key Laboratory of Natural and Biomimetic Drugs, Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, China
Institute of Systems Biomedicine, Peking University, Beijing, China
The authors have declared that no competing interests exist.
Conceived and designed the experiments: JZ YA XL. Performed the experiments: JZ YA JG JH XP. Analyzed the data: JZ YA LT XL. Contributed reagents/materials/analysis tools: LT YP. Wrote the paper: JZ YA XL.