Related Experiment Video
Updated: Aug 5, 2025
05:39
Author Spotlight: Radiotherapy and Clonogenic Assays for Advancing Cancer Research and Personalized Medicine
Published on: April 5, 2024
892
Radiation Therapy and the Microbiome; More Than a Gut Feeling
Uri Amit, Andrea Facciabene, Edgar Ben-Josef1
1From the Department of Radiation Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA.
Cancer Journal (Sudbury, Mass.)
|March 23, 2023
Summary
The patient's microbiome significantly influences how tumors respond to radiotherapy (RT) and the severity of side effects. Understanding gut microbiota is key to improving cancer treatment outcomes and managing radiation toxicity.
Area of Science:
- Oncology
- Microbiology
- Radiotherapy
Background:
- Tumor response and treatment side effects in radiotherapy (RT) patients vary due to tumor microenvironment and host factors.
- Emerging research highlights the critical role of the patient's microbiome in modulating both tumor control and normal tissue responses to RT.
- Gut microbiota composition evolves from infancy to adulthood, with diversity and species abundance impacting overall health.
Approach:
- This review synthesizes current literature on the interplay between gut microbiota and radiotherapy outcomes.
- Focuses on the mechanisms by which the gut microbiome influences normal tissue toxicity and tumor control.
- Directs readers to additional resources for detailed information on how RT affects gut microbiome composition.
Key Points:
- The gut microbiome is a significant host-related factor influencing radiotherapy efficacy and toxicity.
- Microbiota composition changes throughout life and can be altered by external factors, including RT.
- Specific microbial species and their abundance play a role in modulating treatment response.
Conclusions:
- The gut microbiota is a modifiable factor with the potential to personalize radiotherapy strategies.
- Further research into microbiome-targeted interventions could enhance tumor control and reduce adverse effects.
- Understanding the host-microbiome-RT interaction is crucial for advancing cancer care.
Related Concept Videos
02:17The Tumor Microenvironment
6.7K
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...
6.7K
01:29Microorganisms in Medicine and Therapeutics
97
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.
97
02:49Cancer Therapies
7.9K
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...
7.9K
01:27Tumor Immunotherapy
600
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.
600
02:59Biological Effects of Radiation
15.7K
All radioactive nuclides emit high-energy particles or electromagnetic waves. When this radiation encounters living cells, it can cause heating, break chemical bonds, or ionize molecules. The most serious biological damage results when these radioactive emissions fragment or ionize molecules. For example, α and β particles emitted from nuclear decay reactions possess much higher energies than ordinary chemical bond energies. When these particles strike and penetrate matter, they...
15.7K
01:26Physical Methods for Controlling Microbial Growth: Radiation and Filtration
151
Radiation and filtration are essential tools for microbial control, targeting microorganisms through distinct mechanisms. Radiation eliminates microbes by damaging their DNA, either killing them or inhibiting their growth. Based on wavelength, radiation is classified into two types: nonionizing and ionizing radiation.Non-ionizing radiation, such as UV radiation (200–400 nm), is absorbed by DNA, causing defects that effectively disinfect surfaces, air, and water, including safety cabinets.
151