Polyamine metabolism and cancer: treatments, challenges and opportunities

Robert A Casero1, Tracy Murray Stewart2, Anthony E Pegg3

  • 1Department of Oncology, Johns Hopkins University School of Medicine and the Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD, USA. rcasero@jhmi.edu.

Nature Reviews. Cancer
|September 6, 2018
PubMed

Insights

Targeting polyamine metabolism offers a promising anticancer strategy. New therapies, including polyamine blocking therapy, show potential for cancer treatment and prevention by exploiting cancer-driving pathways.

Area of Science:

  • Biochemistry
  • Oncology
  • Molecular Biology

Background:

  • Polyamines play crucial roles in cellular functions, and their dysregulation is linked to cancer development.
  • Recent advances highlight the intricate connections between polyamine metabolism and key cancer pathways like PTEN-PI3K-mTORC1, WNT, and RAS.

Purpose of the Study:

  • To explore the potential of targeting polyamine metabolism as an anticancer strategy.
  • To identify novel therapeutic and preventive approaches by understanding the interplay of polyamine metabolism with cancer-driving pathways.

Main Methods:

  • Review of current research on polyamine metabolism in cancer.
  • Analysis of molecular mechanisms linking polyamine catabolism to carcinogenesis.
  • Evaluation of ongoing clinical trials for polyamine-targeting agents.

Main Results:

  • Targeting polyamine metabolism is a revitalized anticancer strategy with significant clinical promise.
  • Combination therapies involving polyamine metabolism modulators and other pathway inhibitors are being investigated.
  • New insights into polyamine catabolism offer strategies for cancer prevention.

Conclusions:

  • Aberrant polyamine metabolism presents a viable target for novel anticancer therapies and prevention strategies.
  • Polyamine blocking therapy, combining biosynthesis inhibition and transport blockade, shows enhanced efficacy and potential for inducing antitumor immune responses.
  • Further research into exploiting polyamine metabolism is crucial for developing effective cancer treatments.

Related Concept Videos

Treatment Resistant Cancers02:56

Treatment Resistant Cancers

Cancer is the second leading cause of death in the United States. A cancer cell is genetically unstable and hence can mutate faster. They can also modify their microenvironment and escape immune surveillance. The difficulties in treating cancer are further compounded by the emergence of rapid resistance to anticancer drugs. The most common ways to attain resistance in cancer cells include alteration in drug transport and metabolism, modification of drug target, elevated DNA damage response, or...
3.8K
What is Metabolism?00:52

What is Metabolism?

Overview
131.9K
Carbohydrate Metabolism01:36

Carbohydrate Metabolism

Carbohydrates are polymers composed of molecules containing atoms of carbon, hydrogen and oxygen. One gram of carbohydrate can provide four kilo-calories of energy, which makes it the most efficient instant energy source.
Starch accounts for approximately 60% of the carbohydrates consumed by humans. Since amylase enzymes cannot function in the stomach's acidic environment, starch can only be digested in the mouth and small intestine. Simple sugars are found naturally in milk and fruits in...
14.3K
Overview of Metabolism01:40

Overview of Metabolism

Living cells constantly carry out various chemical reactions which are necessary for their proper functioning. These reactions are interlinked to one another via multiple pathways. The collection of these chemical reactions is known as metabolism.
Plant Metabolism
Sunlight, the primary source of energy in plants, is first absorbed by the chlorophyll pigments present in their leaves. Plants then use this energy to carry out photosynthesis, where water is oxidized into oxygen and carbon dioxide...
38.4K
Regulation of Metabolism01:19

Regulation of Metabolism

Cellular needs and conditions vary from cell to cell and change within individual cells over time. For example, the required enzymes and energetic demands of stomach cells are different from those of fat storage cells, skin cells, blood cells, and nerve cells. Furthermore, a digestive cell works much harder to process and break down nutrients during the time that closely follows a meal compared with many hours after a meal. As these cellular demands and conditions vary, so do the amounts and...
11.6K
Metabolic Rate01:25

Metabolic Rate

The human body is a powerhouse of energy, with every cell performing numerous functions that require energy. This energy production and consumption is measured by the metabolic rate, which quantifies the total heat generated by all the body's chemical reactions and mechanical work. This measurement helps to determine the rate of kilocalorie (kcal) consumption needed to fuel all ongoing activities.
The Basal Metabolic Rate (BMR) measures the energy expended at rest.
Several factors influence...
1.3K