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Effects of irradiation on mouse lung

ABSTRACT: Total lung RNA from 3 mouse strains after 18Gy thoracic irradiation. Thoracic cavity radiotherapy is limited by the development of alveolitis and fibrosis in susceptible patients. To define the response to 18 Gy pulmonary irradiation in mice, at the expression level, and to identify pathways which may influence the alveolitis and fibrosis phenotypes expression profiling was completed. Male mice of three strains, A/J (late alveolitis response), C3H/HeJ (C3H, early alveolitis response) and C57BL/6J (B6, fibrosis response) were exposed to thoracic radiation, euthanised when moribund and lung tissue gene expression was assessed with microarrays.

ORGANISM(S): Mus musculus

PROVIDER: GSE2250 | GEO | 2009/09/11

SECONDARY ACCESSION(S): PRJNA91351

REPOSITORIES: GEO

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Effects of irradiation on mouse lung

Project description:Total lung RNA from 3 mouse strains after 18Gy thoracic irradiation. Thoracic cavity radiotherapy is limited by the development of alveolitis and fibrosis in susceptible patients. To define the response to 18 Gy pulmonary irradiation in mice, at the expression level, and to identify pathways which may influence the alveolitis and fibrosis phenotypes expression profiling was completed. Male mice of three strains, A/J (late alveolitis response), C3H/HeJ (C3H, early alveolitis response) and C57BL/6J (B6, fibrosis response) were exposed to thoracic radiation, euthanised when moribund and lung tissue gene expression was assessed with microarrays. treated vs. control in 3 strains

2009-09-11 | E-GEOD-2250 | biostudies-arrayexpress

Inter-strain epigenomic profiling reveals a candidate IAP master copy in C3H mice

Project description:Insertions of endogenous retroviruses cause a significant fraction of mutations in inbred mice but not all strains are equally susceptible. Notably, most new Intracisternal A particle (IAP) ERV mutagenic insertions have occurred in C3H mice. We show here that strain-specific insertionally polymorphic IAPs have accumulated faster in C3H/HeJ mice relative to other strains and that IAP transcript levels are higher in C3H/HeJ embryonic stem (ES) cells compared to other ES cells. To investigate the mechanism for high IAP activity in C3H mice, we identified 61 IAP copies in C3H/HeJ ES cells enriched for H3K4me3 (a mark of active promoters) and, among those tested, all are unmethylated in C3H ES cells. Notably, 13 of the 61 are specific to C3H/HeJ and are members of the non-autonomous 1Δ1 IAP subfamily that is responsible for nearly all new insertions in C3H. One copy is full length with intact open reading frames and hence potentially capable of providing proteins in trans to other 1Δ1 elements. This potential “master copy” is present in other strains, including 129, but its 5’ long terminal repeat (LTR) is methylated in 129 ES cells. Thus, the unusual IAP activity in C3H may be due to reduced epigenetic repression coupled with the presence of a master copy.

2020-06-10 | GSE152208 | GEO

Macrophage response to lipopolysaccharide

Project description:Temporal analysis of bone marrow derived macrophages after 10 ug/ml lipopolysaccharide stimulation. C57BL6, C3H/ARC, BalbC and C3H/HeJ mouse strains analyzed. Keywords: time course

2005-08-19 | GSE3148 | GEO

C57BL/6 C3H/HeJ apoE-/- mice - gene expression in aorta

Project description:Inbred mouse strains C57BL/6J (B6) and C3H/HeJ (C3H) exhibit a marked difference in their susceptibility to atherosclerosis and the arterial wall has proven to be a source of the difference in atherosclerosis susceptibility. Genome-wide gene expression analysis was conducted in aortic walls of the two strains. Total RNA was extracted from aortas of 6-week-old female B6 and C3H apoE-deficient (apoE-/-) mice fed a chow or Western diet. 1514 genes in chow fed mice and 590 genes in Western fed mice were found to be differentially expressed between the two strains. RNA was extracted from aorta using a Trizol protocol. Total RNA was pooled in an equal amount from 4 mice for each group. Standard Affymetrix procedures were performed using 8ug of total RNA. Microarrays were used to detect gene expression in aortic walls of two apoE-deficient mouse strains when fed a chow or western diet. Keywords: atherosclerosis, arterial walls, C57BL/6, C3H/HeJ, Inbred strains, Hyperlipidemia, and Western diet

2009-02-20 | GSE14854 | GEO

Expression profiling of Adipose tissue from C57BL/6J X C3H/HeJ)F2 and (C3H/HeJ X C57BL/6J )F2

Project description:The purpose of this experiment was to determine the expression traits in animals from F2 intercross of inbred strains C57BL/6J, C3H/HeJ. (N=309, 164 males and 145 females).

2009-08-10 | GSE11065 | GEO

Expression profiling of Muscle tissue from C57BL/6J X C3H/HeJ)F2 and (C3H/HeJ X C57BL/6J)F2

Project description:The purpose of this experiment was to determine the expression traits in animals from F2 intercross of inbred strains C57BL/6J, C3H/HeJ. (N=309, 164 males and 145 females).

2009-08-10 | GSE12795 | GEO

Expression profiling of Brain tissue from C57BL/6J X C3H/HeJ)F2 and (C3H/HeJ X C57BL/6J)F2

Project description:The purpose of this experiment was to determine the expression traits in animals from F2 intercross of inbred strains C57BL/6J, C3H/HeJ. (N=309, 164 males and 145 females).

2009-08-10 | GSE12798 | GEO

Expression profiling of Liver tissue from C57BL/6J X C3H/HeJ)F2 and (C3H/HeJ X C57BL/6J )F2

Project description:The purpose of this experiment was to determine the expression traits in animals from F2 intercross of inbred strains C57BL/6J, C3H/HeJ. (N=309, 164 males and 145 females).

2009-08-10 | GSE11338 | GEO

A neuroprotective locus modulates ischemic stroke infarction independent of collateral vessel anatomy

Project description:The strains, C57BL6/J, C3H/HeJ, and WSB/EiJ, show a similar collateral vessel anatomy but differ infarct volume after ischemic stroke induction. To identify a gene(s) exhibiting differential gene expression, we performed RNA seq experiment within these mouse strains.

2021-03-06 | GSE168383 | GEO

Gene expression profiles of irradiated lung tissue in three mouse strains

Project description:The aim of our research is to clarify the mechanisms generating heterogeneity in response to C-ion irradiation that arise from individual genetic variations in humans. In this study, we performed whole lung C-ion irradiation using three different strains of mice to examine whether strain-dependent differences in radiation effects occur in high-LET C-ion thoracic irradiation. Murine strain-variance was evaluated by histopathological examination of intra-alveolar hemorrhage that is likely to occur during the early phase after irradiation, and of lung fibrosis during the late phase, occurring more than three months after irradiation. We also performed microarray analysis to identify the key genes that are differentially regulated in different mouse strains after C-ion irradiation and to determine the mechanism of strain-dependent pulmonary damage after high-LET C-ion irradiation.

2014-02-26 | GSE20959 | GEO

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