The double-edged roles of ROS in cancer prevention and therapy

Yawei Wang1,2, Huan Qi2, Yu Liu1,2

  • 1Department of Thoracic Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang 110042, China.

Theranostics
|March 23, 2021
PubMed

Insights

Reactive oxygen species (ROS), crucial for cell signaling, have dual roles in cancer, promoting growth or death. Understanding redox biology is key to developing effective anticancer therapies.

Area of Science:

  • Biochemistry
  • Cell Biology
  • Oncology

Background:

  • Reactive oxygen species (ROS) are signaling molecules from oxidative metabolism, linked to diseases.
  • Redox metabolism reprogramming causes abnormal ROS accumulation in cancer cells.
  • ROS exhibit dual roles in cancer progression, influencing tumor growth, metastasis, and apoptosis.

Purpose of the Study:

  • To review ROS generation and scavenging mechanisms.
  • To discuss ROS-mediated signal transduction networks in cancer.
  • To explore ROS-targeted anticancer therapies.

Main Methods:

  • Literature review of notable studies on ROS.
  • Analysis of redox biology and cancer progression.
  • Synthesis of information on signal transduction and therapies.

Main Results:

  • ROS accumulation in cancer cells is linked to altered redox metabolism.
  • The effects of ROS in cancer are concentration, location, and duration-dependent.
  • ROS can drive malignant transformation or induce oxidative stress-mediated cell death.

Conclusions:

  • A comprehensive understanding of redox biology is essential for cancer treatment.
  • Targeting ROS pathways offers potential for novel anticancer strategies.
  • Further research into the sophisticated mechanisms of redox biology is imperative to conquer cancer.

Related Concept Videos

Cancer Therapies02:49

Cancer Therapies

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...
8.9K
Targeted Cancer Therapies02:57

Targeted Cancer Therapies

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...
8.1K
Cancer Prevention02:59

Cancer Prevention

Several factors can increase the risk of cancer in an individual. About 50% of cancer cases can be prevented by adopting a healthy lifestyle, regular exercise, eating healthy, and following a modest cancer prevention diet. Epidemiological studies have consistently shown that populations with vegetable and fruit-rich diets have reduced the incidence of cancer. On the other hand, populations who have a diet rich in animal fat, red meat, junk food, or high calories are predisposed to cancer.
Some...
7.2K
Rous Sarcoma Virus (RSV) and Cancer01:03

Rous Sarcoma Virus (RSV) and Cancer

Rous Sarcoma virus or RSV was discovered by F. Peyton Rous in the year 1911 as a filterable transmissible agent that could cause tumors in chickens. He won a Nobel Prize for this discovery in 1966. His experiments clearly demonstrated that some cancers could be caused by infectious agents and led to the discovery of many more cancer-causing viruses in animals as well as humans.
RSV is a retrovirus that contains two copies of a plus-strand  RNA genome. Its genome consists of four main open...
5.7K
Combination Therapies and Personalized Medicine02:50

Combination Therapies and Personalized Medicine

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...
5.6K