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Related Concept Videos

Cancer Therapies02:49

Cancer Therapies

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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...
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The mitochondrial electron transport chain (ETC) is the main energy generation system in the eukaryotic cells. However, mitochondria also produce cytotoxic reactive oxygen species (ROS) due to the large electron flow during oxidative phosphorylation. While Complex I is one of the primary sources of superoxide radicals, ROS production by Complex II is uncommon and may only be observed in cancer cells with mutated complexes.
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  7. Oncology And Carcinogenesis
  9. Predictive And Prognostic Markers
  11. Protective Effects Of Silymarin In Glioblastoma Cancer Cells Through Redox System Regulation.
  1. Home
  3. Research Domains
  5. Biomedical And Clinical Sciences
  7. Oncology And Carcinogenesis
  9. Predictive And Prognostic Markers
  11. Protective Effects Of Silymarin In Glioblastoma Cancer Cells Through Redox System Regulation.

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Protective effects of silymarin in glioblastoma cancer cells through redox system regulation.

Sara Zarei Shandiz1, Bahareh Erfani2,3, Seyed Isaac Hashemy4,5

  • 1Department of Biology, Mashhad Branch, Islamic Azad University, Mashhad, Iran.

Molecular Biology Reports
|June 4, 2024

View abstract on PubMed

Summary
This summary is machine-generated.

Silymarin, a milk thistle flavonoid, combats glioblastoma by boosting antioxidant defenses and activating the Nrf2/HO-1 pathway, offering a potential low-toxicity cancer treatment.

Keywords:
AntioxidantGlioblastoma multiformeNrf2 pathwayOxidative stress

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Area of Science:

  • Biochemistry
  • Pharmacology
  • Oncology

Background:

  • Glioblastoma multiforme (GBM) is an aggressive brain tumor with poor prognosis.
  • Oxidative stress plays a key role in GBM pathogenesis.
  • Silymarin, a milk thistle flavonoid, exhibits anti-cancer properties and modulates oxidative stress.

Purpose of the Study:

  • To investigate silymarin's effects on oxidative stress in GBM cells.
  • To explore silymarin's regulation of the Nrf2 pathway and related enzymes.
  • To assess silymarin as a potential low-toxicity anti-cancer agent.

Main Methods:

  • Cytotoxicity assessed using MTT assay (IC50 = 264.6 μM).
  • Redox system parameters measured with commercial kits.
  • Gene expression of Nrf2, HO-1, glutaredoxin, and thioredoxin analyzed by real-time PCR.
Silymarin

Main Results:

  • Silymarin increased catalase and superoxide dismutase activity and total antioxidant capacity.
  • Silymarin decreased malondialdehyde levels, indicating reduced lipid peroxidation.
  • Silymarin significantly upregulated Nrf2, HO-1, glutaredoxin, and thioredoxin expression.

Conclusions:

  • Silymarin demonstrates cytotoxic and anti-cancer effects in U-87 MG GBM cells.
  • These effects are mediated through antioxidant mechanisms.
  • Silymarin enhances the Nrf2/HO-1 pathway, suggesting therapeutic potential.