Related Experiment Video
Updated: Jan 13, 2026
07:44
Studying the Effects of Tumor-Secreted Paracrine Ligands on Macrophage Activation using Co-Culture with Permeable Membrane Supports
Published on: November 28, 2019
8.0K
Microbial-Derived Metabolites and Their Impact on Cancer Immunotherapy
Jessica Jeong1, Kelly J Baines2, Saman Maleki Vareki2,3,4,5,6
1Department of Biochemistry, Western University, London, Canada.
Cancer Immunology Research
|January 9, 2026
Summary
The gut microbiome influences cancer treatment. Bacterial metabolites like inosine and indole can impact immune responses and effectiveness of therapies such as immune checkpoint inhibitors (ICI).
Area of Science:
- Immunology
- Oncology
- Microbiome research
Background:
- The gut microbiome significantly impacts cancer progression and response to immunotherapies.
- Microbially derived metabolites are increasingly recognized as critical regulators of the tumor immune microenvironment.
Purpose of the Study:
- To review the role of prominent bacterial metabolites in antitumor immunity.
- To explore how these metabolites modulate the efficacy of immune checkpoint inhibitors (ICI).
Main Methods:
- Literature review of preclinical findings.
- Analysis of ongoing clinical trials.
- Examination of the immunomodulatory effects of specific metabolites.
Main Results:
- Four key metabolite classes (inosine, indole, bile acids, SCFAs) have complex, context-dependent effects on immune cells.
- These metabolites can exert both pro- and anti-inflammatory actions.
- Their influence on antitumor immunity and ICI efficacy is multifaceted.
Conclusions:
- Metabolite-targeted interventions offer therapeutic potential for enhancing immunotherapy.
- Understanding these microbial metabolites is crucial for developing precision treatment strategies.
- Further mechanistic studies are needed to fully harness microbiome modulation for cancer therapy.
More Related Videos
Related Concept Videos
01:27Tumor Immunotherapy
1.7K
Immunotherapy is a treatment that boosts or manipulates the immune system to fight diseases, including cancer. For instance, by stimulating an immune response through vaccinations against viruses that cause cancers, like hepatitis B virus and human papillomavirus, these diseases can be prevented. Nonetheless, some cancer cells can avoid the immune system due to their rapid mutation and division. The immune response to many cancers involves three phases: elimination, equilibrium, and escape.
1.7K
02:17The Tumor Microenvironment
7.6K
Every normal cell or tissue is embedded in a complex local environment called stroma, consisting of different cell types, a basal membrane, and blood vessels. As normal cells mutate and develop into cancer cells, their local environment also changes to allow cancer progression. The tumor microenvironment (TME) consists of a complex cellular matrix of stromal cells and the developing tumor. The cross-talk between cancer cells and surrounding stromal cells is critical to disrupt normal tissue...
7.6K
02:57Targeted Cancer Therapies
8.6K
The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against...
There are several types of targeted therapies against...
8.6K
02:49Cancer Therapies
9.8K
Cancer therapies are various modes of treatment, such as surgery, radiation therapy, and chemotherapy that are administered to cancer patients.
However, cancer treatments can pose several challenges, as therapies used to kill cancer cells are generally also toxic to normal cells. Moreover, cancer cells mutate rapidly and can develop resistance to chemical agents or radiation therapy. Besides, all types of cancer cells may not respond to the same therapy. Some cancer cells respond to one...
However, cancer treatments can pose several challenges, as therapies used to kill cancer cells are generally also toxic to normal cells. Moreover, cancer cells mutate rapidly and can develop resistance to chemical agents or radiation therapy. Besides, all types of cancer cells may not respond to the same therapy. Some cancer cells respond to one...
9.8K
01:29Microorganisms in Medicine and Therapeutics
928
Microorganisms play a fundamental role in vaccine development, gene therapy, and therapeutic production. Their biological properties are harnessed to advance medicine and public health. Beyond immunization, microorganisms contribute to gut health, antibiotic synthesis, and genetic disease treatment.Live Attenuated and Inactivated VaccinesLive attenuated vaccines, such as the measles, mumps, and rubella (MMR) vaccine, utilize weakened forms of pathogens to closely resemble natural infections.
928
02:50Combination Therapies and Personalized Medicine
5.9K
Combining two or more treatment methods increases the life span of cancer patients while reducing damage to vital organs or tissue from the overuse of a single treatment. Combination therapy also targets different cancer-inducing pathways, thus reducing the chances of developing resistance to treatment.
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
5.9K