Microarray analysis of lung SPC/GFP+ EpCAM+ cells from different smoke exposure mice
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ABSTRACT:
PROVIDER: PRJNA683822 | ENA |
REPOSITORIES: ENA
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Project description:We extracted RNA of sorted lung SPC/GFP+ EpCAM+ cells and performed microarray analyses. Total RNA was extracted from sorted Ep-CAMhigh/GFPhigh cells using TRIzol reagent (Invitrogen, Carlsbad, CA) according to the manufacturer’s protocol. The RNA integrity was examined on an Agilent 2100 BioAnalyzer (Agilent Technologies, Santa Clara, CA). Biotinylated ss-cDNA were prepared according to the standard Affymetrix protocol from 100 ng total RNA using the GeneChip WT PLUS Reagent Kit User Manual (Affymetrix/Thermo Fisher Scientific). Fragmented and labeled ss-cDNA were hybridized on a GeneChip Clariom S Array (Affymetrix/Thermo Fisher Scientific) (n =3/group). We used microarrays to detail the global gene expression of SPC/GFP+ EpCAM+ cells from the control mice(G37-1_(Clariom_S_Mouse)), 3 week continuous smoke mice (G37-2_(Clariom_S_Mouse)) and 3 weeks intermittent smoke mice(G37-3_(Clariom_S_Mouse)), and identified distinct classes of up-regulated genes during this process.
2020-12-10 | GSE162919 | GEO
Project description:We extracted RNA of sorted lung SPC/GFP+ EpCAM+ cells and performed microarray analyses. Total RNA was extracted from sorted Ep-CAMhigh/GFPhigh cells using TRIzol reagent (Invitrogen, Carlsbad, CA) according to the manufacturer’s protocol. The RNA integrity was examined on an Agilent 2100 BioAnalyzer (Agilent Technologies, Santa Clara, CA). Biotinylated ss-cDNA were prepared according to the standard Affymetrix protocol from 100 ng total RNA using the GeneChip WT PLUS Reagent Kit User Manual (Affymetrix/Thermo Fisher Scientific). Fragmented and labeled ss-cDNA were hybridized on a GeneChip Clariom S Array (Affymetrix/Thermo Fisher Scientific) (n =3/group). We used microarrays to detail the global gene expression of SPC/GFP+ EpCAM+ cells from the control mice(G29-5_(Clariom_S_Mouse)) and the 3 months smoke mice(G29-6_(Clariom_S_Mouse)), and identified distinct classes of up-regulated genes during this process.
2019-04-26 | GSE130331 | GEO
Project description:Microarray analysis of lung SPC/GFP+ EpCAM+ cells
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Project description:Our previous studies have shown that tobacco smoke exposure exacerbated the lung response to crystalline silica exposure in rats. The objective of the present study, a follow-up to our previous study, was to determine the effect of tobacco smoke exposure cessation on the lung response to crystalline silica exposure in the rats. Rats were exposed to air, crystalline silica (1 week followed by a 1 year progression/recovery period with no exposure), tobacco smoke (6 months of exposure followed by 6 months of recovery with no exposure), or crystalline silica (1 week) plus tobacco smoke (6 months of exposure followed by 6 months of recovery with no exposure). Lung toxicity was determined at the end of the 1-year progression/recovery period in all 4 groups of the rats. Silica exposure resulted in significant lung toxicity which was further exacerbated by tobacco smoke exposure in the rats. Cessation of cigarette smoke exposure did not result in reversal of the silica-induced lung toxicity despite exacerbation of the toxicity by tobacco smoke.
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2024-03-05 | PXD041193 | Pride
Project description:Whole transcriptome analysis of dechorinated zebrafish embryos after (static?) exposure to one of five smoke dyes from 6 hours post-fertilization (hpf) to 48 hpf. Smoke dyes tested are Disperse Blue 14, Disperse Red 9, Solvent Red 169, Solvent Violet 47, and Solvent Yellow 33. Results provide insight into the molecular mechanisms of immunological response to the dyes.
2021-02-07 | GSE166302 | GEO
Project description:Background: How prenatal smoke exposure affects DNA methylation leading to atopic disorders remains to be addressed. Epigenetic biomarkers informative of prenatal smoke exposure and atopic disorders are wanting. Since most children suffering from atopic dermatitis (AD) continue to develop asthma later in life, we explored whether prenatal smoke exposure e induces DNA methylation and searched for predictive epigenetic biomarkers for smoke related atopic disorders. Methods: Methylation differences associated with smoke exposure were screened by Illumina methylation panel for children from the Taiwan birth panel study cohort initially. Information about development of atopic dermatitis (AD) and risk factors were collected. Cord blood cotinine levels were measured to represent prenatal smoke exposure. CpG loci that demonstrated a statistically significant difference in methylation were validated by methylation-dependent fragment separation (MDFS). Differential methylation in three genes (TSLP, GSTT1, and CYB5R3) was identified through the screen and their functions were investigated. Results: Among these, only thymic stromal lymphopoietin (TSLP) gene displayed significant difference in promoter methylation percentage after being validated by MDFS (p=0.029). TSLP gene was further investigated in a larger sample of 92 children from the cohort. Methylation status of the TSLP 5′-CpG island (CGI) was found to be significantly associated with prenatal smoke exposure (OR=3.59, 95%CI=1.49-8.64; cotinine level 0.10 ng/ml, sensitivity= 77%; specificity = 61%) and with AD (OR=4.77, 95%CI=1.47-15.53). The degree of TSLP 5′CGI methylation inversely correlated with TSLP protein expression levels (per unit: β=－6.69 ng/ml; 95% CIs, －12.80~－0.59; p=0.032). Conclusions: The effect of prenatal tobacco smoke exposure on the risk for AD may be mediated through DNA methylation. Cord blood methylated TSLP 5′CGI may be a potential epigenetic biomarker for environmentally-related atopic disorders.
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Project description:Cigarette smoke exposure induces pulmonary inflammation despite increased risk of lung infection. We tested the ability of human beta-defensin 2, an antimicrobial peptide, to modulate inflammatory processes while promoting immune competence.
2021-09-29 | GSE184832 | GEO
Project description:Next Generation Sequencing of LSK EpCAM+ and EpCAM- of Zeb1-/-
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