Identification of transcriptional effects of ethynyl oestradiol in male plaice (Pleuronectes platessa) by suppression subtractive hybridisation and a nylon macroarray.
Suppression subtractive hybridisation (SSH) was used to generate cDNA libraries representing genes differentially expressed in response to ethynyl oestradiol (EE2) exposure in liver from male plaice (Pleuronectes platessa) previously analysed for vitellogenin (VTG) induction. Characterisation of the cDNA clones identified many as VTG (2 genes) and zona radiata proteins (ZRP) (3 genes), but 40 encoded other proteins, with more than half cryptic. Further analysis identified 85 non-redundant clones suitable for array on nylon membrane. Radiolabelled cDNAs were prepared from hepatic mRNA from EE2 treated plaice (0 and 21 days) and hybridised with the arrayed clones. Analysis of the data showed that 11/17 novel, 21/22 VTG, 13/14 ZRP, 2/2 liver aspartic proteinase (LAP) and 8/10 other mRNAs were up-regulated by EE2 exposure.
Brown
Margaret
M
Biological and Biomedical Sciences, Glasgow Caledonian University, Cowcaddens Rd., Glasgow, Scotland, UK. m.a.brown@gcal.ac.uk
Davies
Ian M
IM
Moffat
Colin F
CF
Robinson
Craig
C
Redshaw
John
J
Craft
John A
JA
D000818:Animals; D016282:Aspartic Acid Endopeptidases / Q000235:genetics; D004527:Egg Proteins / Q000235:genetics; D004997:Ethinyl Estradiol / Q000494:pharmacology*; D005432:Flounder / Q000235:genetics* / Q000378:metabolism; D005786:Gene Expression Regulation / Q000187:drug effects*; D015723:Gene Library; D008099:Liver / Q000378:metabolism; D008297:Male; D009693:Nucleic Acid Hybridization / Q000379:methods; D020411:Oligonucleotide Array Sequence Analysis; D010761:Phosphorus Radioisotopes; D012333:RNA, Messenger / Q000378:metabolism*; D014819:Vitellogenins / Q000235:genetics
D004527:Egg Proteins; D010761:Phosphorus Radioisotopes; D012333:RNA, Messenger; D014819:Vitellogenins; C423083:zona radiata protein, fish; D004997:Ethinyl Estradiol; D016282:Aspartic Acid Endopeptidases