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RESEARCH PAPER
2,4-dinitrophenol enhances cisplatin and etoposide cytotoxic activity on prostate cancer cell line
1
Independent Medical Biology Unit, Medical University, Lublin, Poland
2
Department of Biochemistry and Molecular Biology, Medical University, Lublin, Poland
3
Department of Human Anatomy, Medical University, Lublin, Poland
4
Department of Toxicology, Medical University, Lublin, Poland
Corresponding author
Ann Agric Environ Med. 2024;31(1):37-46
KEYWORDS
TOPICS
ABSTRACT
Introduction and objective:
Including additional compounds that disturb the energy metabolism of cancer cells in advanced cancer therapy regimens may be an approach to overcome the problem of drug resistance and the therapeutic effectiveness of classic chemotherapeutics. One of the compounds that decouple oxidative phosphorylation, and thus alter the activity of energy-producing pathways, is 2,4-DNP (2,4- dinitrophenol).
Objective:
The aim of the study was to assess the ability of the 2,4-DNP to sensitize prostate cancer cells to the action of cisplatin and etoposide, or to intensify their action.
Material and methods:
The research was carried out on three prostate cancer cell lines (LNCaP, PC-3, DU-145. To assess the effect of cisplatin or etoposide with 2,4-DNP on prostate cancer cells, MTT assay, analysis of the cell cycle and apoptosis detection was performed. Oxidative stress was investigated by CellRox fluorescence staining and expression of genes related to antioxidant defence. In addition, analysis was conducted of the expression of genes related to cell cycle inhibition, transporters associated with multi-drug resistance and DNA repair.
Results:
The study showed that the simultaneous incubation of 2,4-DNP with cisplatin or etoposide enhances the cytotoxic effect of the chemotherapeutic agent only in LNCaP cells (oxidative phenotype).
Conclusions:
The enhanced cytotoxic effect of chemotherapeutics by 2,4-DNP may be the result of disturbed redox balance, reduced ability of cells to repair DNA, and the oxidative metabolic phenotype of prostate cancer cells.
Including additional compounds that disturb the energy metabolism of cancer cells in advanced cancer therapy regimens may be an approach to overcome the problem of drug resistance and the therapeutic effectiveness of classic chemotherapeutics. One of the compounds that decouple oxidative phosphorylation, and thus alter the activity of energy-producing pathways, is 2,4-DNP (2,4- dinitrophenol).
Objective:
The aim of the study was to assess the ability of the 2,4-DNP to sensitize prostate cancer cells to the action of cisplatin and etoposide, or to intensify their action.
Material and methods:
The research was carried out on three prostate cancer cell lines (LNCaP, PC-3, DU-145. To assess the effect of cisplatin or etoposide with 2,4-DNP on prostate cancer cells, MTT assay, analysis of the cell cycle and apoptosis detection was performed. Oxidative stress was investigated by CellRox fluorescence staining and expression of genes related to antioxidant defence. In addition, analysis was conducted of the expression of genes related to cell cycle inhibition, transporters associated with multi-drug resistance and DNA repair.
Results:
The study showed that the simultaneous incubation of 2,4-DNP with cisplatin or etoposide enhances the cytotoxic effect of the chemotherapeutic agent only in LNCaP cells (oxidative phenotype).
Conclusions:
The enhanced cytotoxic effect of chemotherapeutics by 2,4-DNP may be the result of disturbed redox balance, reduced ability of cells to repair DNA, and the oxidative metabolic phenotype of prostate cancer cells.
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