: Cancer Chemoprevention by Resveratrol: The p53 Tumor Suppressor Protein as a Promising Molecular Target

Article summary: Cancer Chemoprevention by Resveratrol: The p53 Tumor Suppressor Protein as a Promising Molecular Target

This article reviews research on resveratrol, a natural polyphenol found in red grapes, mulberries, and some plants. It emphasizes the role of resveratrol in cancer prevention (Cancer Chemoprevention) and its relationship with an important protein named p53, which is a tumor suppressor protein or “genome guardian protein.”

1. What is resveratrol?

Resveratrol is a natural antioxidant that has many biological activities, such as

anti-inflammatory

Antioxidants

Stimulates the death of cancer cells (apoptosis)

Inhibits the creation of new tumor blood vessels. (anti-angiogenesis)

Reduce the spread of cancer (anti-metastasis)

Increases the sensitivity of cancer cells to chemotherapy drugs. (chemosensitizer)

That is, resveratrol not only “kills cancer cells” but also helps prevent cancer from occurring at an early stage.

2. How does resveratrol help prevent cancer?

Resveratrol works across all 3 stages of cancer:

● Initial phase (Initiation)

It inhibits the enzymes CYP1A1, CYP1B1, and CYP1A2, which are enzymes that convert carcinogens into more dangerous substances.

As well as increasing the activity of enzymes to remove toxins such as

Glutathione peroxidase

Glutathione S-transferase

NAD(P)H quinone oxidoreductase

● Promotion period (Promotion)

Reduce inflammation and reduce oxidative stress, which is an important factor that causes cells to mutate.

● Progression

inhibit

VEGF

HIF-1α

MMP-2

MMP-9

which is related to the creation of new blood vessels and the spread of cancer cells

3. p53 is the most important target

The article highlights that p53 is an important molecular target of resveratrol.

p53 has a function

Stop the cell division cycle (cell cycle arrest)

DNA repair

stimulates abnormal cell death

Prevents tumors and cancer.

If p53 does not function properly, damaged cells are not eliminated. Causes cancer more easily

4. How does resveratrol stimulate p53?

Resveratrol helps

Increased stability of p53

Prevents destruction by MDM2.

Stimulate p21 → stop cell cycle

Stimulate Bax, Bak, PUMA, NOXA → Stimulate apoptosis

Reduce Bcl-2 and Bcl-xL → Reduce cancer cell survival.

In summary,

Resveratrol brings p53 back to work.

Thus helping to stop the growth of cancer.

5. Use with chemotherapy

Resveratrol can enhance the effects of chemotherapy drugs such as

Cisplatin

Carboplatin

Oxaliplatin

Doxorubicin

Docetaxel

5-Fluorouracil

Gemcitabine etc.

Makes cancer cells respond better to treatment and reduce drug resistance

Important conclusions

Resveratrol is a natural substance with high potential to prevent cancer.

Specifically, through stimulating p53, a key protein in regulating abnormal cell death.