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Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

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Comparative analysis of gene expression in 9 BXH RI strains and progenitors (B6 and C3) and BXHF1.

ABSTRACT: We hypothesize that gene expression in the lungs of this RI panel are divergent thus contributing to the disparity in their phenotypes. More specifically, (1) B6 mice tend to have a much smaller lung volume than the C3 mice while the F1 appears to be like the B6 in lung structure and function. We postulate that their gene expression differences would reflect this. (2) The diversity in the phenotypes of this RI panel could be explained by a few genes whose expression spectrum across this panel could explain the physiological spectrum. In order to test these hypotheses at the gene expression level, we utilized microarray analysis to examine transcriptional differences among lungs of these strains of mice. Keywords: comparative expression profiling This study utilizes microarray analysis to test these hypotheses. Two sets of lungs were harvested from each strain at 8 wks of age. RNA was isolated and used for global gene expression profiling (Affymetrix Mouse 430A array).

ORGANISM(S): Mus musculus

SUBMITTER: vikas misra

PROVIDER: E-GEOD-11659 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Comparative analysis of gene expression in 9 BXH RI strains and progenitors (B6 and C3) and BXHF1.

Project description:We hypothesize that gene expression in the lungs of this RI panel are divergent thus contributing to the disparity in their phenotypes. More specifically, (1) B6 mice tend to have a much smaller lung volume than the C3 mice while the F1 appears to be like the B6 in lung structure and function. We postulate that their gene expression differences would reflect this. (2) The diversity in the phenotypes of this RI panel could be explained by a few genes whose expression spectrum across this panel could explain the physiological spectrum. In order to test these hypotheses at the gene expression level, we utilized microarray analysis to examine transcriptional differences among lungs of these strains of mice. Keywords: comparative expression profiling

2011-11-26 | GSE11659 | GEO

Transcription profiling of mouse ob/ob leptin-treated and ob/ob saline-treated lungs.

Project description:We hypothesize that gene expression in the lungs of these differentially-treated mice are divergent thus contributing to the disparity in their phenotypes. More specifically, (1) Effects of Leptin-treatment of ob/ob postnatal mice lungs are known to be volume-dependent from 2 to 10 wks of age, and are independent of the hypometabolism associated with leptin deficiency. ; (2) Leptin is critical to postnatal lung remodeling, particularly related to enlarged alveolar surface area. In order to test these hypotheses at the gene expression level, we utilized microarray analysis to examine transcriptional differences between lungs of leptin or saline-treated ob/ob postnatal mice. Experiment Overall Design: This study utilizes microarray analysis to test these hypotheses. Three sets of lungs were harvested from both treatments (Leptin or Saline) at around 1 mo. postnatal. RNA was isolated and used for global gene expression profiling (Affymetrix Mouse 430A array). Statistically significant gene expression was determined as a minimum 6 counts of 9 pairwise comparisons, minimum 1.5-fold change, and p < 0.05.

2008-06-18 | E-GEOD-10915 | biostudies-arrayexpress

Transcription profiling of mouse aging lung from two strains C57BL/6J and DBA/2J

Project description:We hypothesize that gene expression in the aging lungs of these two strains of mice are divergent thus contributing to the disparity in the phenotypes.re specifically, (1) Aging DBA/2J mice compared to aging C57BL/6 mice are known to be accelerated in their lung physiology andrphometry; (2) C57BL/6J are known to have longer natural longevity than DBA/2J mice. In order to test these hypotheses at the gene expression level, we utilized microarray analysis to examine transcriptional differences between aging lungs of both strains of mice. Experiment Overall Design: This study utilizes microarray analysis to test these hypotheses. Three sets of lungs were harvested from both strains at each time point (C57BL/6J: 2, 18, AND 26s; DBA/2J: 2 and 18s). RNA was isolated and used for global gene expression profiling (Affymetrixuse 430 2.0 array). Statistically significant gene expression was determined as a minimum 6 counts of 9 pairwise comparisons, minimum 1.5-fold change, and p < 0.05. Further, Absolute | FC - FC SEM | >= 1.5.

2009-04-23 | E-GEOD-6591 | biostudies-arrayexpress

Transcription profiling of mouse C57BL6J lung exposed to 2 weeks of cigarette smoke compared to age-matched controls

Project description:We hypothesize that gene expression in the cigarette smoke (CS) exposed neonatal lung and age-matched controls will be divergent. CS exposed lung will have divergence of immune response genes and structural genes. The lungs of (6) 2 week old neonatal mice exposed to 2 weeks of CS were compared to the lung of (4) 2 week old age-matched control mice. We utilized microarray analysis to examine transcriptional differences between smoke exposed neonatal lung and age-matched controls. Experiment Overall Design: This study utilizes microarray analysis to test these hypotheses. Six sets of lungs were harvested from CS exposed mice and four sets of lungs were harvested from age-matched control mice. RNA was isolated and used for global gene expression profiling (Affymetrix Mouse 430 2.0 array). Statistically significant gene expression was determined as a minimum 6 counts of 9 pairwise comparisons, minimum 1.5-fold change, and p < 0.05. Further, Absolute | FC - FC SEM | >= 1.5.

2008-06-15 | E-GEOD-7310 | biostudies-arrayexpress

Transcription profiling of mouse wild type and Nrf2-/- mice Type II cells

Project description:We hypothesize that gene expression in the Type II cells of Nrf2+/+ and Nrf2-/- mice are divergent thus contributing the cell growth. More specifically, type II cells from Nrf2-/- mice have increased reactive oxygen species that cause the impaired cell growth. In order to test these hypotheses at the gene expression level, we utilized microarray analysis to examine transcriptional differences between Nrf2+/+ and Nrf2-/- cells. Experiment Overall Design: . This study utilizes microarray analysis to test these hypotheses. Three sets of type II cells were isolated from lungs from both Nrf2+/+ and Nrf2-/- mice and grown for 5 days. RNA was isolated and used for global gene expression profiling (Affymetrix Mouse 430 2.0 array). Statistically significant gene expression was determined as a minimum 6 counts of 9 pairwise comparisons, minimum 1.5-fold change, and p < 0.05. Further, Absolute | FC - FC SEM | >= 1.5.

2008-06-15 | E-GEOD-7810 | biostudies-arrayexpress

Genome-wide identification of miRNAs associated with alcoholism endophenotypes - Full LXS recombinant inbred panel

Project description:We conducted a high-throughput sequencing study to measure whole brain miRNA expression levels in alcohol naïve animals in the LXS panel of recombinant inbred (RI) mouse strains. We then combined the sequencing data with genotype data, microarray gene expression data, and data on alcohol-related behavioral phenotypes such as 'Drinking in the dark', 'Sleep time', and 'Low dose activation' from the same RI panel.

2019-02-01 | GSE125953 | GEO

Transcription profiling of mouse A/J strain treated with cigarette smoke (CS) vs Air treated lungs

Project description:We hypothesize that gene expression in the CS-exposed lungs of this strain (A/J) of mice would be able to give clues about the molecular mechanism of emphysema development, thus contributing to this phenotype. More specifically, although imbalance in oxidants/antioxidants and proteinase/antiproteinase pathways drives the pathogenesis of COPD, the molecular mechanisms involved in the development of emphysema are poorly understood. In order to test this hypothesis at the gene expression level, we utilized microarray analysis to examine transcriptional differences between CS-exposed and Air-exposed groups of mice. Experiment Overall Design: This study utilizes microarray analysis to test these hypotheses. Three sets of lungs were harvested from both groups at each time point (A/J - CS exposed OR Air-exposed: 1 day, 8 days, 1.5 mos, and 6 mos). RNA was isolated and used for global gene expression profiling (Affymetrix Mouse 430 2.0 array). Statistically significant gene expression was determined as a minimum 6 counts of 9 pairwise comparisons, minimum 1.5-fold change, and p < 0.05.

2009-03-28 | E-GEOD-8790 | biostudies-arrayexpress

Mouse primary megakaryocytes, wild type & NF-E2p45-deficient

Project description:To identify p45 target genes, we conducted gene expression profiling with p45-null megakaryocytes cultured from E14.5 fetal liver. Many genes encoding membrane proteins and enzymes related to platelet function, including Txas, Glycoprotein 6 (Gp6) and Selectin P (Selp), were repressed in the absence of p45. Considering the similar DNA binding specificity of p45 and Nrf2 in vitro, we expected p45 to activate cytoprotective genes that are established Nrf2 targets. However, the expression of numerous detoxifying enzymes and stress-responsive genes, including NAD(P)H:quinone oxidoreductase (Nqo1), were increased in the absence of p45. To obtain wild type and p45-null fetal livers, p45+/- mice were crossed. Whole livers were recovered from mouse fetuses at E14.5 and single cell suspensions were prepared by successive passage through 25-gauge needles. Fetal liver cells were maintained in RPMI1640 (Wako) supplemented with 20% charcoal-stripped fetal bovine serum, 50 units/ml penicillin, 50 Âµg/ml streptomycin, and 50 ng/ml of recombinant human thrombopoietin. CD41+ cells were selected from a 4 day primary culture of E14.5 fetal liver cells using a MACS magnetic system (Miltenyi Biotec). The fetal liver culture with TPO described above was incubated with FITC-conjugated anti-CD41 antibody (BD Pharmingen, clone MWReg30) followed by incubation with anti-FITC microbeads. Subsequently, the microbeads were selected magnetically through MACS large cell columns (Miltenyi Biotec). Total RNA was extracted from the CD41+ cells using Isogen (Nippon Gene).

2010-03-22 | E-GEOD-15581 | biostudies-arrayexpress

Transcription profiling of mouse lung from C57BL6 and DBA2 parental strains and D2.B6-Chr7 and D2.B6-Chr19 congenic mice following aerosol infection with Mycobacterium tuberculosis for 30 and 70 days

Project description:To gain insight into the host cell types, cellular and molecular pathways possibly involved in the differential permissiveness to pulmonary replication of M. tuberculosis, we carried out transcript profiling studies on M. tuberculosis-infected lungs from congenic and parental strains. We were particularly interested in two groups of transcripts. The first group consists of transcripts which expression in the lung is regulated in response to M. tuberculosis infection (global response to infection), and that is obtained by comparing transcripts profiles of infected vs. uninfected lungs. The second group of transcripts is associated with increased resistance to M. tuberculosis infection of B6 and D2.B6-Chr7 mice. That list consists in the overlap between the lists commonly expressed in response to infection between resistant B6 and D2.B6-Chr7 but that show a significant difference in modulation when compared to infected susceptible D2.<br><br> In these experiments, B6, D2 as well as the D2.B6-Chr19, and D2.B6-Chr7 congenic lines were infected with M. tuberculosis and lungs were harvested at day 30 and day 70, and RNA was prepared. Three independent RNA samples from each group were converted to labeled cDNAs and hybridized to Affymetrix oligonucleotides arrays (Mouse Genome 430 2.0 array). Hybridization results were analyzed with the Genesifter analysis program to characterize changes in gene expression.

2009-02-20 | E-MEXP-1942 | biostudies-arrayexpress

Expression data from liver of male mouse at 10-week-old

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2023-03-31 | GSE72825 | GEO

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