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Unknown,Transcriptomics,Genomics,Proteomics

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Transcription factors expressed in olfactory bulb local progenitor cells revealed by genome-wide transcriptome profiling

ABSTRACT: We used transcriptional profiling to monitor gene expression of whole olfactory bulbs at daily intervals from embryonic day 11 through birth, generating a compendium of gene expression encompassing the major developmental events of this tissue. OBs from CD1 mice (Charles River Laboratories, Wilmington, MA), were isolated from embryos daily between E11 and postnatal day zero (P0), for a total of nine time points. RNA was purified with TRIzol reagent (Invitrogen, Carlsbad, CA), subjected to two rounds of amplification, labeled, and hybridized to Affymetrix Mouse Genome 430.2 GeneChip microarrays (Affymetrix Inc., Santa Clara, CA, USA) using Affymetrix reagents and protocols (http://www.affymetrix.com). One microarray for each time point using RNA from the OBs of one individual embryo.

ORGANISM(S): Mus musculus

SUBMITTER: Grodon Campbell

PROVIDER: E-GEOD-26406 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Transcriptional profiling of ICAM-positive and -negative cells from the mouse olfactory epithelium

Project description:We used trasncriptional profiling of fluorescent activated cell sorting (FACS) purified ICAM1-positive and negative cells from the olfactory epithelium (OE) of three-week old mice to identify genes enriched in the horizontal basal cells. The olfactory epithelia from P21-P25 CD1 mice (Charles River Laboratories, Wilmington, MA), were isolated, dissociated, and then purified by FACS using a FITC-conjugated antibody for ICAM1 (CD54). ICAM1-positive and negative cell populations were collected and compared. RNA was purified with TRIzol reagent (Invitrogen, Carlsbad, CA), subjected to two rounds of amplification, labeled, and hybridized to Affymetrix Mouse Genome 430.2 GeneChip microarrays (Affymetrix Inc., Santa Clara, CA, USA) using Affymetrix reagents and protocols (http://www.affymetrix.com). There were three experimental replicates, each consisting of the ICAM1 (+) and ICAM1 (-) FACS purified cell populations from individual litters of mice that were dissected/dissociated/FACS-purified using an ICAM1-FITC conjugated antibody; one microarray was used for each ICAM1 (+) and ICAM1 (-) sample for a total of six microarrays. Microarray data were normalized using GCRMA.

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Transcription factors expressed in olfactory bulb local progenitor cells revealed by genome-wide transcriptome profiling

Project description:We used transcriptional profiling to monitor gene expression of whole olfactory bulbs at daily intervals from embryonic day 11 through birth, generating a compendium of gene expression encompassing the major developmental events of this tissue.

2011-01-04 | GSE26406 | GEO

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Project description:We report genome-wide gene expression changes in olfactory bulb cells, in the context of low, wild-type or high levels of local CRH signaling by local interneurons onto adult-born CRHR1+ granule neurons. To test the gene expression changes associated with altered local CRH signaling, we utilize the following animal models: CRHR1-/- mice whose bulbs were infected with a control AAV-flex-EGFP virus = low local CRH signaling, CRHR1-Cre mice whose bulbs were infected with AAV-flex-EGFP = pseudo-wild-type local CRH signaling, and CRHR1-Cre mice whose bulbs were infected with AAV-flex-(CA)CRHR1, which is a constitutively active variant of CRHR1 = high local CRH signaling. We find that, in response to changes in local CRH signaling in the bulb, the largest ontological category of transcription changes in the bulb that occurs reciprocally between low and high levels of CRH signaling are gene regulatory factors. To test the contributions of one of these factors, POU6f1, we perform loss- and gain-of-function analysis. We show that CRHR1 activation results in transcriptional activation of POU6f1 and that POU6f1 in turn influences synaptogenesis and dendritic patterning of adult-born neurons and olfactory circuit behavior.

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Transcription Factors Sp8 and Sp9 Coordinately Regulate Olfactory Bulb Interneuron Development [RNA-seq 2]

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Expression profiling of LB-22 immortalized mouse embryonic kidney cells in control and WT1 siRNA knockdown conditions

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2015-02-28 | E-GEOD-66356 | biostudies-arrayexpress

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2014-10-14 | GSE61081 | GEO

olfactory bulb from control mouse and a mouse with developmentally-induced olfactory bulb degeneration

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