AUTHOR=Gong Qinyuan , Xu Rongzhen TITLE=Subtype-specific human endogenous retrovirus K102 envelope protein is a novel serum immunosuppressive biomarker of cancer JOURNAL=Frontiers in Immunology VOLUME=15 YEAR=2025 URL=https://www.frontiersin.org/journals/immunology/articles/10.3389/fimmu.2024.1533740 DOI=10.3389/fimmu.2024.1533740 ISSN=1664-3224