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Updated: Oct 11, 2025

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Published on: July 3, 2025
Cancer Microbiology
Daniel DiMaio1,2,3,4, Brinda Emu4,5, Andrew L Goodman4,6
1Department of Genetics, Yale School of Medicine, New Haven, CT, USA.
Abstract:
Microbes play important roles in cancer from direct carcinogenic effects to their use in treatment. Cancers caused by microorganisms account for approximately 15% of cancers, primarily in low- and middle-income countries. Unique features of infectious carcinogens include their transmissibility, mutability, and specific immune interactions, which provide challenges and opportunities for cancer prevention and treatment. For these agents, infection control through exposure reduction, antivirals, antibiotics, and vaccines is cancer control. In addition, developing evidence suggests that microorganisms including the human microbiome can indirectly modulate cancer formation and influence the effectiveness and toxicity of cancer treatments. Finally, microorganisms themselves can be used to prevent or treat cancer. The convergence of these factors signals the emergence of a new field, cancer microbiology. Recognition of cancer microbiology will spur research, stimulate cross-disciplinary training, inform drug development, and improve public health.
Insights
Microbes significantly impact cancer, causing 15% of cases and influencing treatment. The emerging field of cancer microbiology integrates infection control and microbiome research for prevention and therapy.
Area of Science:
- Microbiology
- Oncology
- Infectious Diseases
Background:
- Microorganisms are implicated in cancer development, accounting for approximately 15% of global cancer cases, particularly in low- and middle-income countries.
- Infectious carcinogens possess unique characteristics like transmissibility and mutability, presenting distinct challenges and opportunities for cancer control strategies.
- Emerging research highlights the role of the human microbiome in modulating cancer formation and influencing the efficacy and toxicity of cancer therapies.
Purpose of the Study:
- To introduce and define the emerging field of cancer microbiology.
- To underscore the multifaceted roles of microbes in cancer, from causation to therapeutic potential.
- To emphasize the need for integrating microbial insights into cancer research, drug development, and public health initiatives.
Main Methods:
- This review synthesizes current knowledge on the relationship between microbes and cancer.
- It examines the impact of infectious agents on cancer etiology and progression.
- It explores the influence of the human microbiome on cancer development and treatment response.
Main Results:
- Microbial infections are responsible for a significant proportion of cancers worldwide.
- Microbes can directly cause cancer or indirectly influence its development and progression.
- Microorganisms offer novel avenues for cancer prevention, diagnosis, and treatment, including the use of vaccines and modulation of the microbiome.
Conclusions:
- The field of cancer microbiology represents a paradigm shift in understanding and combating cancer.
- Integrating knowledge of microbes and cancer is crucial for advancing prevention, treatment, and public health outcomes.
- Further research and cross-disciplinary collaboration are essential to fully harness the potential of cancer microbiology.
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