Related Experiment Video
Updated: Jan 27, 2026

07:17
Production and Detection of Reactive Oxygen Species ROS in Cancers
Published on: November 21, 2011
71.0K
Reactive oxygen species and cancer: A complex interaction
Sankaralingam Saikolappan1, Binod Kumar2, Gauri Shishodia3
1Department of Biochemistry and Molecular Biology, USA.
Cancer Letters
|March 26, 2019
Summary
Reactive Oxygen Species (ROS) contribute to tumor progression. This review covers ROS sources, roles in the tumor microenvironment, and scavenger systems, focusing on solid tumors.
Area of Science:
- Oncology
- Biochemistry
- Cell Biology
Background:
- Reactive Oxygen Species (ROS) and antioxidant systems play a complex role in cancer.
- Redox homeostasis is crucial for tumor initiation, development, and metastasis.
- The tumor microenvironment influences ROS dynamics during cancer progression.
Purpose of the Study:
- To review the diverse sources of ROS generation within cancer cells.
- To elucidate the multifaceted roles of ROS in the tumor microenvironment.
- To summarize the functions of ROS and their scavenger systems in solid tumor progression.
Main Methods:
- Literature review of existing research on ROS in cancer.
- Synthesis of information on ROS generation, function, and regulation.
- Focus on solid tumors to provide specific insights.
Main Results:
- ROS generation sources in cancer cells are varied and context-dependent.
- ROS significantly impacts tumor progression and metastasis through various mechanisms.
- Antioxidant systems act as crucial scavengers, influencing tumor fate.
Conclusions:
- Understanding ROS dynamics is key to comprehending tumor progression.
- Targeting ROS or antioxidant systems presents potential therapeutic strategies.
- Further research into ROS in the tumor microenvironment is warranted for solid tumors.
Related Concept Videos
What is a Species?
49.6K
Overview
49.6K
Keystone Species
24.3K
Measures of species biodiversity, such as richness (i.e., the number of species present) and evenness (i.e., their relative abundance), describe an ecological community’s structure. Many factors affect community structure, including abiotic factors (e.g., sunlight and nutrients), disturbances (e.g., fire or flood), species interactions (e.g., predation or competition), and chance events (e.g., foreign species invasion). Certain species—such as keystone species—also play a...
24.3K
Formation of Species
44.9K
Speciation describes the formation of one or more new species from one or sometimes multiple original species. The resulting species are discrete from the parent species, and barriers to reproduction will typically exist. There are two primary mechanisms, speciation with and without geographic isolation—allopatric and sympatric speciation, respectively.
44.9K
Protein Complex Assembly
16.7K
Proteins can form homomeric complexes with another unit of the same protein or heteromeric complexes with different types. Most protein complexes self-assemble spontaneously via ordered pathways, while some proteins need assembly factors that guide their proper assembly. Despite the crowded intracellular environment, proteins usually interact with their correct partners and form functional complexes.
Many viruses self-assemble into a fully functional unit using the infected host cell to...
Many viruses self-assemble into a fully functional unit using the infected host cell to...
16.7K
Cross-reactivity
33.0K
Overview
33.0K
Reactivity of Enols
4.0K
Enols are a class of compounds where a hydroxyl group is attached to a carbon–carbon double bond, which implies that it is a vinyl alcohol. A carbonyl compound with an α hydrogen undergoes keto–enol tautomerism and remains in equilibrium with its tautomer, the enol form. Usually, the keto tautomer is present in a higher concentration than the enol tautomer due to the higher bond energy of C=O compared to C=C. Moreover, the direction of the keto–enol equilibrium is...
4.0K

