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Cytochrome P450 1A1 expression in cetacean skin biopsies from the Indian Ocean
Jauniaux, T.; Farnir, F.; Fontaine, M.; Kiszka, J.; Sarlet, M.; Coignoul, F. (2011). Cytochrome P450 1A1 expression in cetacean skin biopsies from the Indian Ocean. Mar. Pollut. Bull. 62(6): 1317-1319. dx.doi.org/10.1016/j.marpolbul.2011.04.005
In: Marine Pollution Bulletin. Macmillan: London. ISSN 0025-326X; e-ISSN 1879-3363, more
Peer reviewed article  

Available in  Authors 
    VLIZ: Open Repository 231378 [ OMA ]

Keyword
    Marine/Coastal
Author keywords
    Cytochrome P450; Biopsy; Skin; Immunohistochemistry; Mayotte

Authors  Top 
  • Jauniaux, T., more
  • Farnir, F.
  • Fontaine, M., more
  • Kiszka, J.
  • Sarlet, M., more
  • Coignoul, F., more

Abstract
    The study describes cytochrome P450 1A1 (CYPA1) expression in the skin of different cetacean species (Megaptera novaeangliae, n = 15; Stenella attenuata, n = 7 and Stenella longirostris, n = 24) from the Mozambique Channel island of Mayotte. Immunohistochemical examination was performed with a monoclonal antibody against scup cytochrome CYPA1. The sex was determined using a molecular approach consisting in the genotyping sex-specific genes. CYPA1 was detected at the junction between epidermis and blubber on dolphins only, mostly in the endothelial cells. Similar observation was obtained in the dermis of one M. novaeangliae. Immunohistochemical slides were scored to evaluate the expression of the CYPA1 and a higher expression was observed in S. longirostris, suggesting a higher exposure to pollutants for this species. The difference of expression between sexes was not significant.

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