AUTHOR=Mangoni Maria Luisa , Bhunia Anirban , Botta Bruno , Ghirga Francesca TITLE=Editorial: Secondary Metabolites and Peptides as Unique Natural Reservoirs of New Therapeutic Leads for Treatment of Cancer and Microbial Infections JOURNAL=Frontiers in Chemistry VOLUME=9 YEAR=2021 URL=https://www.frontiersin.org/journals/chemistry/articles/10.3389/fchem.2021.748180 DOI=10.3389/fchem.2021.748180 ISSN=2296-2646