AUTHOR= Frontiers Editorial Office TITLE=Retraction: Mesenchymal stem/stromal cell-based delivery: a rapidly evolving strategy for cancer therapy JOURNAL=Frontiers in Cell and Developmental Biology VOLUME=11 YEAR=2023 URL=https://www.frontiersin.org/journals/cell-and-developmental-biology/articles/10.3389/fcell.2023.1285267 DOI=10.3389/fcell.2023.1285267 ISSN=2296-634X