AUTHOR=Stoolman Joshua S. , Porcelli Anna Maria , Martínez-Reyes Inmaculada TITLE=Editorial: Mitochondria as a hub in cellular signaling JOURNAL=Frontiers in Cell and Developmental Biology VOLUME=10 YEAR=2022 URL=https://www.frontiersin.org/journals/cell-and-developmental-biology/articles/10.3389/fcell.2022.981464 DOI=10.3389/fcell.2022.981464 ISSN=2296-634X