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Updated: May 28, 2025

Using Multi-fluorinated Bile Acids and In Vivo Magnetic Resonance Imaging to Measure Bile Acid Transport
Published on: November 27, 2016
Carcinogenic and anticancer activities of microbiota-derived secondary bile acids
Mobina Kouhzad1, Friedrich Götz2, Tahereh Navidifar3
1Department of Genetics, Faculty of Science, Islamic Azad University North Tehran Branch, Tehran, Iran.
Abstract:
Secondary bile acids (SBAs), which are metabolites produced by gut microbiota, have been implicated in both carcinogenic and anticancer processes. This review explores the dual role of SBAs, focusing on their molecular mechanisms and biological effects. The carcinogenic activities of SBAs include DNA damage, promotion of oxidative stress, and modulation of signaling pathways that drive tumorigenesis. Conversely, some SBAs exhibit anticancer properties by inducing apoptosis, inhibiting cell proliferation, and modulating immune responses. The article also discusses the complex interplay between SBAs and the host's genetic and environmental factors, highlighting potential therapeutic implications and the need for targeted strategies to mitigate risks while harnessing beneficial effects. A comprehensive understanding of the delicate equilibrium between the deleterious and salutary impacts of SBAs has the potential to facilitate the development of innovative cancer prevention and treatment methodologies.
Insights
Secondary bile acids (SBAs) from gut microbes have a dual role in cancer, promoting it through DNA damage and oxidative stress, yet also fighting it by inducing apoptosis. Understanding this balance is key for new cancer therapies.
Area of Science:
- Microbiology
- Metabolomics
- Oncology
Background:
- Gut microbiota produce secondary bile acids (SBAs), metabolites with complex roles in health and disease.
- SBAs have been linked to both the development and inhibition of cancer.
- Their dualistic nature necessitates a deeper understanding of their molecular mechanisms.
Purpose of the Study:
- To review the dual role of secondary bile acids (SBAs) in carcinogenesis and anticancer processes.
- To explore the molecular mechanisms underlying the effects of SBAs.
- To discuss the implications for cancer prevention and therapy.
Main Methods:
- Literature review of studies on secondary bile acids and cancer.
- Analysis of molecular mechanisms of SBA action.
- Synthesis of information on host-SBA interactions.
Main Results:
- SBAs can promote cancer via DNA damage, oxidative stress, and altered signaling pathways.
- Certain SBAs exhibit anticancer effects by inducing apoptosis, inhibiting proliferation, and modulating immunity.
- Host genetics and environment significantly influence SBA impact.
Conclusions:
- SBAs possess both carcinogenic and anticancer properties, highlighting a complex biological role.
- Targeted strategies are needed to mitigate risks and leverage beneficial SBA effects.
- Understanding the SBA equilibrium is crucial for developing novel cancer therapeutics.
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