例如:"lncRNA", "apoptosis", "WRKY"

mRNA expression of Bcl-2, Bax, caspase-3 and -7 cannot be used as a marker for apoptosis in bovine blastocysts.

Anim. Reprod. Sci.2008 Jun;106(1-2):168-73. Epub 2008 Jan 03
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摘要


At present the most widely used technique for apoptosis detection in embryos remains the in situ visualization of DNA fragmentation by terminal deoxynucleotidyl transferase-dUTP nick end labelling (TUNEL) assay although this technique may be prone to artefacts. The aim of the present study was to investigate if the mRNA expression of a set of genes involved in apoptosis (Bax, Bcl-2, caspase-3 and -7) at an earlier point in the apoptotic cascade could be a good marker for apoptosis in in vitro produced bovine embryos. After normalization to the geometric mean of three reference genes, GAPD, YWHAZ and SDHA, mRNA expression levels of Bax, Bcl-2, caspase-3 and -7 were compared in embryos treated with an apoptosis inducer, staurosporine and in non-treated embryos. None of the genes were differently expressed in treated in comparison with non-treated embryos. In conclusion, mRNA expression of Bax, Bcl-2, caspase-3 and-7 cannot be used as a reliable apoptosis detection method. Immunofluorescent staining of caspase-3 and -7 is a better choice where as for Bcl-2 no reliable and practicable alternative is available at the moment.

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