GEO Logo
   NCBI > GEO > Accession DisplayHelp Not logged in | LoginHelp
GEO help: Mouse over screen elements for information.
Sample GSM897422 Query DataSets for GSM897422
Status Public on Oct 14, 2012
Title Mus_juvenile_4
Sample type RNA
Source name juvenile mouse follicles, immature, prophase I, replicate 4
Organism Mus musculus
Characteristics tissue: juvenile ovarian follicles
Stage: immature
meiotic stage: prophase I
development capacity: developmentally incompetent
Treatment protocol Cumulus cells were separated from the immature oocytes by gentle pipeting. In the case of expanded cumulus of ovulated COCs, they were transferred into M2-droplets containing 300 µg/ml of hyaluronidase (Sigma-Aldrich) for a few seconds to disperse granulosa cells. In all cases, media containing granulosa cells after oocyte denudation and elimination were centrifuged and cumulus cell pellets rinsed in PBS before snap-freezing in liquid nitrogen and storage at -70° until RNA extraction.
Growth protocol Immature, unexpanded cumulus-oocytes complexes (COC) were isolated from prepubertal (3-week-old) or adult (8-week-old) B6CBAF1/J mice ovaries by puncturing large follicles out of the ovaries in M2 culture medium (Sigma). Mature, expanded COCs were obtained from the oviduct from 8-week-old mice after standard superovulation protocol.
Extracted molecule total RNA
Extraction protocol Total RNA was extracted using TRIzol reagent (Invitrogen, Cergy Pontoise, France). RNA was quantified using a NanoDrop-1000 spectrophotometer and quality was monitored with the Agilent 2100 Bioanalyzer (Agilent Technologies, Santa Clara, CA).
Label Cy3
Label protocol Cyanine-3 (Cy3) labeled cRNA was prepared from 0.35 µg RNA using the One-Color Microarray based gene Expression kit (Quick Amp Labeling, Agilent) according to the manufacturer's instructions, followed by RNAeasy column purification (QIAGEN, Valencia, CA). Dye incorporation and cRNA yield were checked with the NanoDrop ND-1000 Spectrophotometer.
Hybridization protocol 1.65 µg of Cy3-labelled cRNA was fragmented at 60°C for 30 minutes in a reaction volume of 55 µl containing 25x fragmentation buffer and 10x blocking agent following the manufacturers instructions (Agilent Technologies, Santa Clara, CA) . On completion of the fragmentation reaction, 55 µl of 2x GEx Hybridization Buffer HI-RPM (Agilent provided) was added to the fragmentation mixture and hybridized to Agilent Bovine Oligo Microarray (G4846A) for 17 hours at 65°C in a rotating Agilent hybridization oven. After hybridization, microarrays were washed 1 minute at room temperature with GE Wash Buffer 1 (Agilent) and 1 minute with 37°C GE Wash buffer 2 (Agilent).
Scan protocol Slides were scanned immediately after washing on the Agilent DNA Microarray Scanner (G2566AA) using one color scan setting for 1x44k array slides (Scan Area 61x21.6 mm, Scan resolution 5 µm, Dye channel is set to Green and Green PMT is set to 100%).
Description Gene expression in juvenile mouse follicles in which prophase I oocytes are meiotically competent but developmentally incompetent after meiosis resumption
Data processing The scanned images were analyzed with Feature Extraction Software (Agilent) using default parameters (protocol GE1_107_Sep09 and Grid:026655_D_F_20100123) to obtain background subtracted and spatially detrended Processed Signal intensities. Poor quality features that were either saturated or non-uniform were flagged using Genespring Agilent software. Only features with a signal-to-noise ratio (SNR) of up to 2.6 and significantly different from the local background (two sided t-test) were used for further analysis. Entities were then filtered based on these flag values: at least 80% of the values in any 2 out of 3 conditions must have acceptable values. Expression values were then log2-transformed and submitted to a scale normalisation
Submission date Mar 19, 2012
Last update date Oct 14, 2012
Contact name Julien Bobe
Phone (33) 2 23 48 57 24
Organization name Institut National de la Recherche Agronomique
Street address Campus de Beaulieu
City Rennes
ZIP/Postal code 35000
Country France
Platform ID GPL11202
Series (2)
GSE36604 Transcriptional profiling of cumulus cells differentiation throughout oocyte competence acquisition in the murine ovarian follicles.
GSE36617 Contribution of molecular actors from somatic origin to oocyte developmental competence acquisition, lessons from evolution

Data table header descriptions
VALUE Normalized signal intensity (log2 values) calculated by Genespring Agilent GX10.0 software

Data table
GE_BrightCorner 15.018737
DarkCorner 4.281926
A_55_P1989846 7.860246
A_55_P2022211 16.955849
A_55_P1964375 11.766822
A_51_P128876 9.348808
A_51_P207591 6.356079
A_55_P2404223 8.1645775
A_55_P2101944 15.070585
A_52_P358860 9.891013
A_51_P119031 9.09409
A_51_P309854 6.9865794
A_51_P343900 13.096208
A_51_P234359 10.71347
A_51_P487813 11.158424
A_52_P613977 12.215869
A_55_P2052210 14.549313
A_51_P128987 10.329133
A_55_P2111153 10.454279
A_51_P210560 12.919971

Total number of rows: 20880

Table truncated, full table size 471 Kbytes.

Supplementary file Size Download File type/resource
GSM897422_Mus_Juvenile_4.txt.gz 2.1 Mb (ftp)(http) TXT
Processed data included within Sample table
Processed data are available on Series record

| NLM | NIH | GEO Help | Disclaimer | Accessibility |
NCBI Home NCBI Search NCBI SiteMap