AUTHOR=Liu Song-Tao , Chan Gordon K. , Li Weimin TITLE=Editorial: Non-cell Cycle Functions of Cell Cycle Regulators JOURNAL=Frontiers in Cell and Developmental Biology VOLUME=7 YEAR=2019 URL=https://www.frontiersin.org/journals/cell-and-developmental-biology/articles/10.3389/fcell.2019.00122 DOI=10.3389/fcell.2019.00122 ISSN=2296-634X