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Gene expression analysis of the ABC efflux transporters in rainbow trout (Oncorhynchus mykiss)

Lončar, Jovica; Popović, Marta; Žaja, Roko; Smital, Tvrtko (2010) Gene expression analysis of the ABC efflux transporters in rainbow trout (Oncorhynchus mykiss). Comparative Biochemistry and Physiology - Part C: Comparative Pharmacology, 151 . pp. 209-215. ISSN 0306-4492

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In this study we examined gene expression of a series of ABC efflux transporters in various rainbow trout (Oncorhynchus mykiss) tissues. Based on their reported toxicological relevance, we have used quantitative real time PCR SYBR green quantification methodology, with combination of absolute and relative approach, to quantify RNA expression of eight ABC transporters from three different families: abcb1 and abcb11, abcc1-5 and abcg2. Level of mRNA transcripts was measured in seven tissues: liver, brain, gonads, kidney, gills, proximal intestine and distal intestine, and the obtained expression profiles were compared with data available for related mammalian tissues. Most of the analyzed genes showed similar gene expression pattern as the ones found in mammals, with some notable exceptions. E.g., gills were in our study characterized by extremely low expression of all analyzed ABC genes ; and despite the pronounced role of ABCC1 (MRP1) in protection of mammalian cells from chemical toxins, we found low expression of this transporter in trout tissues. Taken together, our study offers the first thorough insight into distribution pattern of (eco)toxicologically relevant ABC transporters, serving as a necessary base for further studies directed to better understanding of physiological and/or protective role of ABC transporters in fish.

Item Type: Article
Uncontrolled Keywords: ABC efflux transporters ; xenobiotics ; rainbow trout ; mRNA expression ; tissue distribution
Subjects: NATURAL SCIENCES > Biology
NATURAL SCIENCES > Biology > Biochemistry and Molecular Biology
Divisions: Division for Marine and Enviromental Research
Project titleProject leaderProject codeProject type
Ekotoksikološko značenje ABC transportnih proteina u vodenih organizama-Tvrtko Smital098-0982934-2745MZOS
Depositing User: Marta Popović
Date Deposited: 07 Nov 2018 14:48
DOI: 10.1016/j.cbpc.2009.10.009

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