Unknown,Transcriptomics,Genomics,Proteomics

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Gene expression in mice with conditional over-activation of hedgehog signaling in the ovary


ABSTRACT: The objective of the study was to determine the cause of anovulation in transgenic mice with conditional over-activation of the hedgehog signaling pathway in the ovary. In Amhr2(cre/+)-SmoM2 transgenic mice, a constitutively active version of the hedgehog signal transducer, smoothened (SMO), known as SMOM2, is expressed in the ovary following cre-mediated recombination. The hypothesis tested is that changes in the neonatal ovary caused by over-activation of hedgehog signaling leads to the life-long anovulation phenotype in transgenic mice. Microarrays were used to examine differences in gene expression in ovaries of two day old wild-type mice (Amhr2(+/+)-SmoM2) and transgenic mice (Amhr2(cre/+)-SmoM2) in which the hedgehog signaling pathway was conditionally over-activated in the ovary. Two microarrays were performed. RNA samples were prepared from ovaries of 8 Amhr2(+/+)-SmoM2 control mice and 8 Amhr2(cre/+)-SmoM2 mutant mice on day two of age. RNA quality was assessed by measurement of ribosomal RNA on an Agilent 2100 Bioanalyzer.

ORGANISM(S): Mus musculus

SUBMITTER: Susan Quirk 

PROVIDER: E-GEOD-35123 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

Overactivation of hedgehog signaling alters development of the ovarian vasculature in mice.

Ren Yi Y   Cowan Robert G RG   Migone Fernando F FF   Quirk Susan M SM  

Biology of reproduction 20120607 6


The hedgehog (HH) signaling pathway is critical for ovarian function in Drosophila, but its role in the mammalian ovary has not been defined. Previously, expression of a dominant active allele of the HH signal transducer protein smoothened (SMO) in Amhr2(cre/+)SmoM2 mice caused anovulation in association with a lack of smooth muscle in the theca of developing follicles. The current study examined events during the first 2 wk of life in Amhr2(cre/+)SmoM2 mice to gain insight into the cause of ano  ...[more]

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