[Abnormal expression of microRNAs in the hippocampus of Ts65Dn mice].
Beijing Da Xue Xue Bao Yi Xue Ban
; 42(2): 173-8, 2010 Apr 18.
Article
em Zh
| MEDLINE
| ID: mdl-20396359
ABSTRACT
OBJECTIVE:
To identify the differentially expressed microRNAs in the hippocampus of Down Syndrome model mouse Ts65Dn.METHODS:
Low molecular weight RNA from hippocampus were tailed and reverse transcribed by extended RT-primer. MicroRNAs primers were arrayed on plates according to the Tm of each primer. PCR were carried out at different annealing temperatures using a gradient real-time PCR instrument. The relative expression level of each microRNAs was calculated using the most stable reference gene as normalizer which was selected by geNorm and Normfinder software.RESULTS:
miR-27a was identified as the most stable reference gene by geNorm and Normfinder software. Among the 52 microRNAs detected by real-time PCR array, miR-33 and miR-19a were significantly down-regulated, whereas miR-130 were significantly up-regulated in the hippocampus of Ts65Dn mice as compared with the euploid control mice. The expression of miR-802, which was the trisomy chromosome 16 derived microRNAs, was very low in hippocampus with no difference between the two groups.CONCLUSION:
MicroRNAs are dysregulated in the hippocampus of Ts65Dn mice, which may contribute to the reduced neurogenesis of Down syndrome.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Síndrome de Down
/
MicroRNAs
/
Hipocampo
Limite:
Animals
Idioma:
Zh
Ano de publicação:
2010
Tipo de documento:
Article