Flavonol regulation in tumor cells

Michael A Lea1

  • 1Department of Microbiology, Biochemistry and Molecular Genetics, Rutgers New Jersey Medical School, Newark, New Jersey, 07103.

Insights

Flavonols, found in fruits and vegetables, show promise in cancer prevention and treatment due to their antioxidant and anti-cancer properties. Ongoing research aims to enhance their bioavailability and therapeutic effectiveness.

Area of Science:

  • Nutritional Science
  • Biochemistry
  • Oncology

Background:

  • Flavonols are a class of flavonoid molecules abundant in fruits and vegetables.
  • Epidemiological studies suggest a correlation between flavonol consumption and reduced cancer incidence.
  • The antioxidant activity of flavonols is a key factor in their potential role in preventing carcinogenesis.

Purpose of the Study:

  • To explore the therapeutic potential of flavonols in cancer prevention and treatment.
  • To investigate the mechanisms of action of flavonols on cancer cells, including their effects on protein kinases and prooxidant activities.
  • To address challenges related to cellular uptake and bioavailability of flavonols.

Main Methods:

  • Review of epidemiological data and existing research on flavonol mechanisms.
  • Analysis of studies investigating flavonol effects on cancer cell hallmarks like apoptosis resistance.
  • Exploration of research on modifying flavonol structures to improve bioavailability.

Main Results:

  • Flavonols exhibit growth-inhibitory effects on cancer cells and reduce hallmarks of cancer.
  • Multiple mechanisms of action, including inhibition of protein kinases and prooxidant effects, have been identified.
  • Additive or synergistic combinations of flavonols with other chemotherapeutic agents are under investigation.
  • Research is actively exploring structural modifications to enhance flavonol bioavailability.

Conclusions:

  • Flavonols possess significant therapeutic potential for cancer prevention and treatment due to their diverse mechanisms of action.
  • The complexity of flavonol actions may hinder cancer cell resistance development.
  • Improving flavonol bioavailability is a critical area of ongoing research for optimizing their dietary and therapeutic use.

Related Concept Videos

Tumor Progression02:07

Tumor Progression

Tumor progression is a phenomenon where the pre-formed tumor acquires successive mutations to become clinically more aggressive and malignant. In the 1950s, Foulds first described the stepwise progression of cancer cells through successive stages.
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
8.0K
Tumor Progression02:07

Tumor Progression

3.6K
Regulation of Angiogenesis and Blood Supply01:24

Regulation of Angiogenesis and Blood Supply

Rapidly dividing tumors, embryos, and wounded tissues require more oxygen than usual, lowering the oxygen concentration in the blood. At low oxygen or hypoxic conditions, an oxygen-sensitive transcription factor called the hypoxia-inducible factor 1 or HIF1 is activated. HIF1 is a dimeric protein of alpha (ɑ) and beta (β) subunits.  Under optimal oxygen conditions, HIF1β is present in the nucleus while HIF1ɑ remains in the cytosol. HIF1ɑ is hydroxylated by prolyl...
4.0K
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...
8.7K
Cancer Stem Cells and Tumor Maintenance02:40

Cancer Stem Cells and Tumor Maintenance

Early diagnosis and treatment can often cure cancer. However, even with treatment, residual cells called cancer stem cells (CSC) might remain, often causing tumor recurrence. These cancer stem cells possess the potential for self-renewal and multi-lineage differentiation and are often responsible for the therapeutic resistance displayed in most cancers.
Cancer stem cells are thought to originate from tissue-specific normal stem cells or progenitor cells. The normal stem cells usually reside in...
6.4K
Cancer Stem Cells and Tumor Maintenance02:40

Cancer Stem Cells and Tumor Maintenance

2.4K