The microbiome in cancer
Anqi Lin , Minying Xiong , Aimin Jiang , Lihaoyun Huang , Hank Z. H. Wong , Suyin Feng , Chunyan Zhang , Yu Li , Li Chen , Hao Chi , Pengpeng Zhang , Bicheng Ye , Hengguo Zhang , Nan Zhang , Lingxuan Zhu , Weiming Mou , Junyi Shen , Kailai Li , Wentao Xu , Haoxuan Ying , Cangang Zhang , Dongqiang Zeng , Jindong Xie , Xinpei Deng , Qi Wang , Jianying Xu , Wenjie Shi , Chang Qi , Chunrun Qu , Xufeng Huang , András Hajdu , Chaoqun Li , Changmin Peng , Xuanye Cao , Guangsheng Pei , Lin Zhang , Yujia Huo , Jiabao Xu , Antonino Glaviano , Attila Gábor Szöllősi , Sicheng Bian , Zhengrui Li , Hailin Tang , Bufu Tang , Zaoqu Liu , Jian Zhang , Kai Miao , Quan Cheng , Ting Wei , Shuofeng Yuan , Peng Luo
iMeta ›› 2025, Vol. 4 ›› Issue (5) : e70070
The human microbiome is now recognized as a central regulator of cancer biology, intricately shaping tumor development, immune dynamics, and therapeutic response. This comprehensive review delineates the multifaceted roles of bacteria, viruses, and fungi in modulating the tumor microenvironment and systemic immunity across diverse cancer types. We synthesize current evidence on how microbial dysbiosis promotes carcinogenesis via chronic inflammation, metabolic reprogramming, genotoxic stress, immune evasion, and epigenetic remodeling. This review emphasizes organ-specific microbiome signatures and highlights their potential as non-invasive biomarkers for early detection, treatment stratification, and prognosis. Furthermore, we explore the impact of intratumoral microbiota on cancer therapies, uncovering how microbial metabolites and host–microbe interactions shape therapeutic efficacy and resistance. Finally, advances in microbiome-targeted strategies, such as probiotics, fecal microbiota transplantation, and engineered microbes offer new avenues for adjunctive cancer therapy. This review provides a roadmap for future investigation and underscores the transformative promise of microbiome modulation in cancer prevention and treatment.
cancer / microbiome / precision oncology / treatment / tumor microenvironment
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2025 The Author(s). iMeta published by John Wiley & Sons Australia, Ltd on behalf of iMeta Science.
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