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Author Spotlight: Quantitative Assessment of 8-oxo-dG in MCF-7 Cells Using ELISA
Published on: May 24, 2024
Oxidative Stress-Induced DNA Damage and Apoptosis in Clove Buds-Treated MCF-7 Cells
Martin Kello1, Peter Takac1,2, Peter Kubatka3,4
1Department of Pharmacology, Faculty of Medicine, P. J. Safarik University, 040 11 Košice, Slovakia.
Abstract:
In recent decades, several spices have been studied for their potential in the prevention and treatment of cancer. It is documented that spices have antioxidant, anti-inflammatory, immunomodulatory, and anticancer effects. The main mechanisms of spices action included apoptosis induction, proliferation, migration and invasion of tumour inhibition, and sensitization of tumours to radiotherapy and chemotherapy. In this study, the ability of clove buds extract (CBE) to induce oxidative stress, DNA damage, and stress/survival/apoptotic pathways modulation were analysed in MCF-7 cells. We demonstrated that CBE treatment induced intrinsic caspase-dependent cell death associated with increased oxidative stress mediated by oxygen and nitrogen radicals. We showed also the CBE-mediated release of mitochondrial pro-apoptotic factors, signalling of oxidative stress-mediated DNA damage with modulation of cell antioxidant SOD (superoxide dismutase) system, and modulation activity of the Akt, p38 MAPK, JNK and Erk 1/2 pathways.
Insights
Clove buds extract (CBE) triggers cancer cell death by inducing oxidative stress and DNA damage. This natural compound modulates key cell survival and apoptosis pathways, offering potential anticancer properties.
Area of Science:
- Oncology
- Pharmacology
- Cell Biology
Background:
- Spices exhibit antioxidant, anti-inflammatory, immunomodulatory, and anticancer properties.
- Mechanisms include apoptosis induction and inhibition of tumor proliferation, migration, and invasion.
- Spices can sensitize tumors to radiotherapy and chemotherapy.
Purpose of the Study:
- To investigate the anticancer potential of clove buds extract (CBE).
- To analyze CBE's ability to induce oxidative stress and DNA damage in cancer cells.
- To examine CBE's modulation of stress, survival, and apoptotic pathways.
Main Methods:
- MCF-7 breast cancer cells were treated with CBE.
- Assessed oxidative stress markers, including oxygen and nitrogen radicals.
- Analyzed DNA damage, mitochondrial factors, and key signaling pathways (Akt, MAPK, Erk).
Main Results:
- CBE treatment induced intrinsic caspase-dependent cell death.
- Increased oxidative stress and release of mitochondrial pro-apoptotic factors were observed.
- CBE modulated the antioxidant superoxide dismutase (SOD) system and key signaling pathways.
Conclusions:
- CBE exhibits anticancer effects by inducing oxidative stress and apoptosis in MCF-7 cells.
- CBE disrupts cancer cell survival pathways and enhances DNA damage.
- Clove extract demonstrates potential as a therapeutic agent in cancer treatment.
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