AUTHOR=Xu Kexin , Rahmatpanah Farah , Jia Zhenyu TITLE=Editorial: Therapeutic Opportunities and Innovative Biomarkers in Tumor Microenvironment JOURNAL=Frontiers in Oncology VOLUME=11 YEAR=2021 URL=https://www.frontiersin.org/journals/oncology/articles/10.3389/fonc.2021.803414 DOI=10.3389/fonc.2021.803414 ISSN=2234-943X