Gene expression profiling of C57BL/6 mouse lung tissue with various treatments using the MA10 array
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ABSTRACT: Flaxseed (FS), a nutritional supplement consisting mainly of omega-3 fatty acids and lignan phenolics, has potent anti-inflammatory, anti-fibrotic and antioxidant properties. We have shown that dietary FS supplementation ameliorates oxidative stress and inflammation in experimental models of acute and chronic lung injury in mice resulting from diverse toxicants. The development of lung tissue damage in response to direct or indirect oxidant stress is a complex process, associated with changes in expression levels of a number of genes. We therefore postulated that flaxseed may modulate gene expression of vital signaling pathways, thus interfering with the development of tissue injury. We evaluated gene expression in lungs of flaxseed-fed (10% FS) mice under unchallenged, control conditions and 48hrs post-radiation treatment (13.5 Gy). Gene expression levels in lung tissues were analyzed using three arrays for each sample, whereby a total of 28,800 genes were evaluated. C57BL/6 black mice were fed a 10% flaxseed diet for 21 days and/or given 13.5Gy thoracic radiation and sacrificed 48hrs post radiation.
Project description:Flaxseed (FS), a nutritional supplement consisting mainly of omega-3 fatty acids and lignan phenolics, has potent anti-inflammatory, anti-fibrotic and antioxidant properties. We have shown that dietary FS supplementation ameliorates oxidative stress and inflammation in experimental models of acute and chronic lung injury in mice resulting from diverse toxicants. The development of lung tissue damage in response to direct or indirect oxidant stress is a complex process, associated with changes in expression levels of a number of genes. We therefore postulated that flaxseed may modulate gene expression of vital signaling pathways, thus interfering with the development of tissue injury. We evaluated gene expression in lungs of flaxseed-fed (10% FS) mice under unchallenged, control conditions and 48hrs post-radiation treatment (13.5 Gy). Gene expression levels in lung tissues were analyzed using three arrays for each sample, whereby a total of 28,800 genes were evaluated. C57BL/6 black mice were fed a 10% flaxseed diet for 21 days and/or given 13.5Gy thoracic radiation and sacrificed 48hrs post radiation.
Project description:Flaxseed (FS), a nutritional supplement consisting mainly of omega-3 fatty acids and lignan phenolics, has potent anti-inflammatory, anti-fibrotic and antioxidant properties. We have shown that dietary FS supplementation ameliorates oxidative stress and inflammation in experimental models of acute and chronic lung injury in mice resulting from diverse toxicants. The development of lung tissue damage in response to direct or indirect oxidant stress is a complex process, associated with changes in expression levels of a number of genes. We therefore postulated that flaxseed may modulate gene expression of vital signaling pathways, thus interfering with the development of tissue injury. We evaluated gene expression in lungs of flaxseed-fed (10% FS) mice under unchallenged, control conditions and 48hrs post-radiation treatment (13.5 Gy). Gene expression levels in lung tissues were analyzed using three arrays for each sample, whereby a total of 28,800 genes were evaluated. C57BL/6 black mice were fed a 10% flaxseed diet for 21 days and/or given 13.5Gy thoracic radiation and sacrificed 48hrs post radiation.
Project description:Flaxseed (FS), a nutritional supplement consisting mainly of omega-3 fatty acids and lignan phenolics, has potent anti-inflammatory, anti-fibrotic and antioxidant properties. We have shown that dietary FS supplementation ameliorates oxidative stress and inflammation in experimental models of acute and chronic lung injury in mice resulting from diverse toxicants. The development of lung tissue damage in response to direct or indirect oxidant stress is a complex process, associated with changes in expression levels of a number of genes. We therefore postulated that flaxseed may modulate gene expression of vital signaling pathways, thus interfering with the development of tissue injury. We evaluated gene expression in lungs of flaxseed-fed (10% FS) mice under unchallenged, control conditions and 48hrs post-radiation treatment (13.5 Gy). Gene expression levels in lung tissues were analyzed using three arrays for each sample, whereby a total of 28,800 genes were evaluated.
Project description:Flaxseed (FS), a nutritional supplement consisting mainly of omega-3 fatty acids and lignan phenolics, has potent anti-inflammatory, anti-fibrotic and antioxidant properties. We have shown that dietary FS supplementation ameliorates oxidative stress and inflammation in experimental models of acute and chronic lung injury in mice resulting from diverse toxicants. The development of lung tissue damage in response to direct or indirect oxidant stress is a complex process, associated with changes in expression levels of a number of genes. We therefore postulated that flaxseed may modulate gene expression of vital signaling pathways, thus interfering with the development of tissue injury. We evaluated gene expression in lungs of flaxseed-fed (10% FS) mice under unchallenged, control conditions and 48hrs post-radiation treatment (13.5 Gy). Gene expression levels in lung tissues were analyzed using three arrays for each sample, whereby a total of 28,800 genes were evaluated.
Project description:Flaxseed (FS), a nutritional supplement consisting mainly of omega-3 fatty acids and lignan phenolics, has potent anti-inflammatory, anti-fibrotic and antioxidant properties. We have shown that dietary FS supplementation ameliorates oxidative stress and inflammation in experimental models of acute and chronic lung injury in mice resulting from diverse toxicants. The development of lung tissue damage in response to direct or indirect oxidant stress is a complex process, associated with changes in expression levels of a number of genes. We therefore postulated that flaxseed may modulate gene expression of vital signaling pathways, thus interfering with the development of tissue injury. We evaluated gene expression in lungs of flaxseed-fed (10% FS) mice under unchallenged, control conditions and 48hrs post-radiation treatment (13.5 Gy). Gene expression levels in lung tissues were analyzed using three arrays for each sample, whereby a total of 28,800 genes were evaluated.
Project description:Murine lung miRNAs were profiled by rodent TaqMan OpenArray after flaxseed feeding and/or radiation exposure Lung tissue was obtained 48 hours after radiation or no exposure from three animals each: flaxseed/no radiation, flaxseed/radiation, control diet/no radiation, control diet/radiation. miRNA profiles were determined by OpenArray.
Project description:Breast cancer is one of the most leading causes of cancer mortality in the world. A growing body of evidence demonstrates the association between flaxseed (FS) consumption and the reduction of breast cancer risk. Flaxseed (FS) is an oilseed rich in n-3 polyunsaturated fatty acids (PUFA), α-linolenic acid (ALA), in dietary phytoestrogen lignan, secoisolariciresinol diglucoside (SDG), and in fiber. Early-life exposure to FS or to its isolated components was associated with the improvement of the mammary gland (MG) morphogenesis and differentiation, and prevention of the MG carcinogenesis. Here, we investigated the effect of FS as a whole food and its isolated oil (FSO) and lignan (SDG) on the MG microRNA (miRNA) signature, in female mice at a late stage of development. We identified a diet-specific MG miRNA signature. Significantly deregulated miRNAs in response to the 3-weeks intervention were associated with breast cancer. Identified miRNAs targeted genes enriched in MG growth and development and in cancer. These miRNAs could be used as potential biomarkers for breast cancer.
Project description:This SuperSeries is composed of the following subset Series: GSE36420: Gene expression profiling of C57BL/6 mouse lung tissue with various treatments using the MA07 array GSE36421: Gene expression profiling of C57BL/6 mouse lung tissue with various treatments using the MA10 array GSE36422: Gene expression profiling of C57BL/6 mouse lung tissue with various treatments using the MA11 array Refer to individual Series
Project description:Radiation lung injury is characterized by early inflammation and late fibrosis. The causes underlying the chronic, progressive nature of radiation injury are poorly understood. Here, we report that the gene expression of irradiated lung tissue correlates with that observed in the lungs in aged animals. We demonstrate that NOX4 expression and superoxide elaboration is increased in irradiated lungs and pneumocytes in a dose dependent fashion. We used microarrays to detail the global programme of gene expression and report that irradiated lung tissue correlates with that observed in the lungs in aged animals. Female C57Bl/Ncr mice, aged 10 weeks were treated with/ without radiation to the thorax with a X-RAD 320 x-ray irradiator at a dose rate of 2.61 Gy/minute. An age-matched cohort of mice received no IR while additional cohorts received 5 Gy in a single dose, 17.5 Gy in a single dose. RNA was extracted and hybridization done on Affymetrix Mouse430_2 microarrays.