کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1976547 | 1060696 | 2007 | 6 صفحه PDF | دانلود رایگان |
In teleosts, two distinct types of TIMP-2s occur, TIMP-2a and TIMP-2b, but little is known about their locations and quantitative expressions. Here, we examined pufferfish (Takifugu rubripes) TIMP-2a (fgTIMP-2a) and TIMP-2b (fgTIMP-2b) quantities and locations in fugu adult tissues and embryos. To compare the quantitative expression of fgTIMP-2s, we performed a quantitative real-time PCR (qPCR). FgTIMP-2a mRNA was constitutively expressed and significant differences in expression were not observed among adult tissues. Whereas, fgTIMP-2b mRNA was significantly differently expressed in ordinary muscle and gill compared to the expression level in whole blood (P < 0.05). Although significant difference was not observed between brain and other tissues, both fgTIMP-2s mRNAs were abundant in the brain. In addition, we examined embryos during development using qPCR. Both fgTIMP-2s mRNAs gradually increased during embryonic development from 48 hpf. However, fgTIMP-2b mRNA was obviously abundant compared to fgTIMP-2a mRNA in embryos. We also examined the specific mRNA distribution in embryos. The fgTIMP-2s mRNAs showed the same distribution during development. Both fgTIMP-2s are expressed in adult fugu tissues and embryos but their expression levels clearly differ, suggesting that there is a predominance of fgTIMP-2b over fgTIMP-2a in vivo.
Journal: Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology - Volume 148, Issue 3, November 2007, Pages 225–230