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Published on: March 20, 2012
Fluconazole alters CYP26 gene expression in mouse embryos
Gian Mario Tiboni1, Francesca Marotta, Erminia Carletti
1Sezione di Ostetricia e Ginecologia, Dipartimento di Medicina e Scienze dell'Invecchiamento, Facoltà di Medicina e Chirurgia, Università G. d'Annunzio di Chieti-Pescara, Italy. tiboni@unich.it
Reproductive Toxicology (Elmsford, N.Y.)
|May 12, 2009
Summary
Fluconazole exposure during pregnancy can disrupt retinoic acid balance, potentially causing birth defects. This study found fluconazole increases the expression of key genes (CYP26a1, CYP26b1) involved in retinoic acid metabolism in mouse embryos.
Area of Science:
- Developmental toxicology
- Pharmacology
- Molecular biology
Background:
- Retinoic acid is crucial for embryonic development.
- Disruption of retinoic acid homeostasis is linked to teratogenesis (birth defects).
- Fluconazole is a common antifungal medication with known teratogenic potential.
Purpose of the Study:
- To investigate the effect of fluconazole on the gene expression of cytochrome P450 (CYP) 26 isoforms.
- To understand how fluconazole impacts retinoic acid degradation pathways during embryonic development.
Main Methods:
- ICR pregnant mice were administered a teratogenic dose of fluconazole on gestation day 8.
- Embryos were collected at 12, 24, and 48 hours post-treatment.
- Quantitative real-time reverse-transcription polymerase chain reaction (RT-PCR) was used to measure mRNA expression of CYP26a1, CYP26b1, and CYP26c1.
Main Results:
- Fluconazole exposure led to a significant up-regulation of CYP26a1 and CYP26b1 mRNA expression in mouse embryos.
- No significant change in CYP26c1 mRNA expression was observed.
- These findings indicate fluconazole alters the expression of genes critical for retinoic acid metabolism.
Conclusions:
- Fluconazole can disrupt embryonal retinoic acid homeostasis by altering CYP26 gene expression.
- This alteration in retinoic acid metabolism may contribute to the teratogenic effects of fluconazole.
- Further research is warranted to elucidate the precise mechanisms linking fluconazole, CYP26 expression, and birth defects.
