AUTHOR=Zhang Lin , Jiang Haoming , Ma Haichao TITLE=Progress in immune microenvironment, immunotherapy and prognostic biomarkers in pediatric osteosarcoma JOURNAL=Frontiers in Immunology VOLUME=16 YEAR=2025 URL=https://www.frontiersin.org/journals/immunology/articles/10.3389/fimmu.2025.1548527 DOI=10.3389/fimmu.2025.1548527 ISSN=1664-3224