Transcriptional responses of cancer-related genes in turbot Scophthalmus maximus and mussels Mytilus edulis exposed to heavy fuel oil no. 6 and styrene.
Ecotoxicology
; 21(3): 820-31, 2012 Apr.
Article
en En
| MEDLINE
| ID: mdl-22307397
ABSTRACT
Recent spills in European waters have released polycyclic aromatic hydrocarbons, important components of heavy fuel oil, and the hydrocarbon styrene. Heavy fuel oil and styrene are classified as potentially genotoxic and carcinogenic. Here we investigate transcription of genes involved in cancer development in the liver of juvenile turbots and in the digestive gland of mussels exposed to heavy fuel oil and to styrene and after a recovery period. In turbot, oil produced a significant up-regulation of p53 and gadd45α after 14 days exposure. cyclin G1 was up-regulated after 7 days treatment with styrene. In mussels, ras was down-regulated in both treatments after the recovery periods. No mutations in ras hotspots were detected in exposed mussels. gadd45α was up-regulated after the recovery period of the styrene experiment. Overall, transcriptional responses differed in mussels compared to turbot. Turbot responded to hydrocarbon exposure by triggering cell cycle arrest (p53) and DNA repair (gadd45α).
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Contaminantes Químicos del Agua
/
Peces Planos
/
Aceites Combustibles
/
Regulación Neoplásica de la Expresión Génica
/
Estireno
/
Mytilus edulis
/
Proteínas de Neoplasias
Límite:
Animals
Idioma:
En
Revista:
Ecotoxicology
Asunto de la revista:
SAUDE AMBIENTAL
/
TOXICOLOGIA
Año:
2012
Tipo del documento:
Article
País de afiliación:
España