ArticleMedical molecular morphology2020
Peroxisome proliferator-activated receptor ɑ (PPARɑ)-cytochrome P450 epoxygenases-soluble epoxide hydrolase axis in ER + PR + HER2- breast cancer.
Article in Medical molecular morphology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 8 citations in OpenAlex.
- Upregulated Nuclear Expression of Soluble Epoxide Hydrolase Predicts Poor Outcome in Breast Cancer Patients: Importance of the Digital Pathology Approach.International journal of molecular sciences · 2024Article
- Review
- PPARα: An emerging target of metabolic syndrome, neurodegenerative and cardiovascular diseases.Frontiers in endocrinology · 2022Review
- NNature communications · 2021Article
- When Activator and Inhibitor of PPARα Do the Same: Consequence for Differentiation of Human Intestinal Cells.Biomedicines · 2021Article
- Oleuropein-Induced Acceleration of Cytochrome P450-Catalyzed Drug Metabolism: Central Role for Nuclear Receptor Peroxisome Proliferator-Activated Receptor α.Drug metabolism and disposition: the biological fate of chemicals · 2021Article
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Fibrates belong to a group of ligands of peroxisome proliferator-activated receptor alpha (PPARα), which play a role in the regulation of CYP epoxygenases and soluble epoxide hydrolase (sEH), key enzymes in the metabolism of biologically highly active epoxyeicosatrienoic acids (EETs). We demonstrated that low doses of fibrates stimulate proliferation of the MCF7 cell line, while high doses suppress it. The increase in cell proliferation was accompanied by an increase in CYP epoxygenases and decrease in sEH levels. The overall level of PPARα remained same after low-dose fibrate stimulation; however, there was a significant shift of the receptor to the cell nucleus. PPARα expression was further demonstrated by immunohistochemistry in both carcinoma and healthy breast tissue samples both in the cytoplasm and in the nuclei. We have also observed higher nuclear PPARα positivity in tumor tissues. Although our results obtained for MCF7 cells suggest the potential role of PPARα in cell proliferation, we did not find an association between nuclear localization of PPARα and the expression of proliferation marker Ki-67 in tumor tissues. The exact role of PPARα in carcinogenesis still remains unclear.
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