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Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

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Mouse Lewis lung carcinoma cell line treated with single or fractionated ionizing radiation doses nated ionizing radiation doses

ABSTRACT: This SuperSeries is composed of the SubSeries listed below. Refer to individual Series

ORGANISM(S): Mus musculus

SUBMITTER: Vaidotas Stankevicius

PROVIDER: E-GEOD-84111 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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miRNA expression profile of of mouse Lewis lung carcinoma cell line treated with single or fractionated ionizing radiation doses

Project description:Radiotherapy is one of the most common therapies for cancer. Approximately half of all cancer patients will receive radiotherapy at some point during treatment. Consequences of IR treatment are dose dependent and different sensitivity to IR of various types of cells is well established. To reduce the damage of IR to most sensitive cells of normal (noncancerous) tissue radiotherapy is administered as fractionated dose treatment applying radiation in ~2 Gy fractions every 24 hours, 5 times per week. However, during the therapy intrinsic and acquired tumor radioresistance may result in treatment failures. Comprehensive mechanisms of the resistance to irradiation as well as mechanisms of cellular response to fractionated dose IR remain unclear. Different gene expression patterns may be partially influenced by short ~22 nt non-coding RNA molecules called microRNAs (miRNAs) via translational regulation or RNA degradation mechanisms. Therefore, in the present study we evaluated global miRNA changes in murine Lewis lung carcinoma LLC1 cells following X-ray irradiation of single 2 Gy or 10 Gy and 2 Gy x 5 fractionated doses. Total RNA enriched in small noncoding RNAs was isolated from mouse Lewis lung carcinoma cells 4h after treatment of single (2 Gy or 10 Gy) or fractionated (5x2 Gy) ionizing radiation dose.

2016-07-07 | E-GEOD-84109 | biostudies-arrayexpress

Gene expression profile of mouse Lewis lung carcinoma cell line treated with single or fractionated ionizing radiation doses

Project description:Radiotherapy is one of the most common therapies for cancer. Approximately half of all cancer patients will receive radiotherapy at some point during treatment. Consequences of IR treatment are dose dependent and different sensitivity to IR of various types of cells is well established. To reduce the damage of IR to most sensitive cells of normal (noncancerous) tissue radiotherapy is administered as fractionated dose treatment applying radiation in ~2 Gy fractions every 24 hours, 5 times per week. However, during the therapy intrinsic and acquired tumor radioresistance may result in treatment failures. Comprehensive mechanisms of the resistance to irradiation as well as mechanisms of cellular response to fractionated dose IR remain unclear. Therefore, in the present study we evaluated global gene expression changes in murine Lewis lung carcinoma LLC1 cells following X-ray irradiation of single 2 Gy or 10 Gy and 2 Gy x 5 fractionated doses. Total RNA was harvested from mouse Lewis lung carcinoma cells 4h after treatment of single (2 Gy or 10 Gy) or fractionated (5x2 Gy) ionizing radiation dose.

2016-07-07 | E-GEOD-84108 | biostudies-arrayexpress

Gene expression profile of two colorectal cancer HT29 and DLD-1 cell lines treated with single or fractionated ionizing radiation doses under 3D cell culture conditions.

Project description:Tumor cell response to irradiation also depends on their microenvironment. Therefore ongoing investigation of three-dimensional (3D) cell culture models provide researchers with essential data studying and remodeling radiotherapeutic implications in cancer treatment. 3D culture models were shown to mimic in vivo cell microenvironment more accurately than the standard two-dimensional cell monolayer (2D) cultures. Growing evidence suggests that 2D and 3D cultured cell gene expression pattern discrepancies following irradiation is highly dependent on cell-ECM interactions. It has been shown that laminin-rich-extracellular matrix (lr-ECM) used in 3D cultures not only alters cancer cell phenotype and response to external stimuli but also affects their differentiation, migration and survivability. Thus, a change in these fundamental cell properties demands us to reconsider data previously collected using 2D in vitro models. RNA was harvested from two colorectal cancer cell lines cultivated under 3D cell culture conditions, 4h after treatment of single (2 Gy or 10 Gy) or fractionated (5x2 Gy) ionizing radiation dose.

2015-12-12 | E-GEOD-75915 | biostudies-arrayexpress

miRNA expression profile of mouse Lewis lung carcinoma LLC1 cell line cultivated in 2-dimensional or 3-dimensional cell culture enriched with laminin rich extracellular matrix proteins

Project description:The extracellular matrix (ECM), as one of the key components of tumor microenvironment has a high impact on cancer development and highly influences tumor cell features. ECM contribute not only structural support to growing tumor cells, but also affect other cellular functions such as cell differentiation, migration, survival or proliferation. Moreover, gene and protein expression levels are regulated in cell-ECM interaction dependent manner. MicroRNAs (miRNAs) act as key modulators of gene expression in various basic cellular processes where they can decrease protein synthesis through translational repression or RNA degradation. Despite miRNAs have recently emerged as important players involved in regulation of cell-ECM interactions molecular mechanisms of this phenomenon remains to be elucidated. To address this question we explored miRNA expression patterns in mouse Lewis lung carcinoma LLC1 cells growing in laminin rich ECM microenvironment. Total RNA enriched in small noncoding RNAs was isolated 48h after growing in two different cell culture systems

2015-12-10 | E-GEOD-75862 | biostudies-arrayexpress

Gene expression profile of mouse Lewis lung carcinoma cell line cultivated in 2-dimensional or 3-dimensional cell culture enriched with laminin rich extracellular matrix proteins.

Project description:Obvious advantages of 3D cell culture model are the cell morphology better reflecting tissue cell morphology, the formation of zones of i) active proliferation, ii) quiescent viable cell zone and iii) necrotic zone, as well as formation of nutrition, oxygen and drug gradients better reflecting cellular environment in tissue. Nevertheless the 3D cultures are a model still not resembling full complexity of tumor tissue environment in vivo. Few obvious limitations of 3D cell cultures as cancer research model are the lack of vasculature, host immune response and other cell-cell interactions that occur between cancer and stromal cells in tumors. Recognized advantages and limitations of the 3D cell culture models, however do not suggest directly the areas of cancer biology where 3D models could be applied with highest success. Hence detailed analysis at the molecular level of 2D/3D cell cultures and tumors in vivo are needed to unlock the power of 3D cell culture model. In order to elucidate which biological pathways of cancer cells in tumors are best resembled by the 3D cell culture model we have analyzed whole genome gene expression changes in mouse LLC1 cell line when cultured in 2D or laminin rich ECM 3D system. RNA was isolated 48h after growing in two different cell culture systems.

2015-12-10 | E-GEOD-75863 | biostudies-arrayexpress

Profile of mouse Lewis lung carcinoma LLC1 cell line cultivated in 2-dimensional or 3-dimensional cell culture enriched with laminin rich extracellular matrix proteins

Project description:This SuperSeries is composed of the SubSeries listed below. Refer to individual Series

2015-12-10 | E-GEOD-75864 | biostudies-arrayexpress

Ionizing Radiation, Higher Plants, and Radioprotection: From Acute High Doses to Chronic Low Doses.

Project description: Not available

| S-EPMC6028737 | biostudies-literature

Solid tumor risks after high doses of ionizing radiation.

Project description: Not available

| S-EPMC1199000 | biostudies-literature

Mouse Lewis lung carcinoma cell line treated with single or fractionated ionizing radiation doses nated ionizing radiation doses

Project description:This SuperSeries is composed of the SubSeries listed below.

2016-07-07 | GSE84111 | GEO

Plasma-specific microRNA responses in rats treated with acute toxicity doses of aristolochic acid I

Project description:In the present study, goal was to scan the potential biomarker for acute kidney injury induced by aristolochic acid I (AAI).We utilized the microarry analysis to investigate the microRNA (miRNA) expression profile in kidneys from rat treated by 40mg/kg AA I for 2-6 days. miRNAs with significantly different expression of global miRNA expression profile were validated by qRT-PCR. For miRNAs still significantly disregulation, we further examined the expression in plasma of rats treated with AAI dosed at 10, 20 and 40mg/kg AAI for 2-6 days by qRT-PCR. miRNAs with significantly dysregulation in plasma, their expressionÂ in brain, liver and heart was examined for kicking out the non-specific disregulation in AAI induced acute kidney injury, so that the significant dysregulation miRNAs with specificity in kidney and plasma was found as potential biomarkers for AAI induced acute kidney injury. Five control and 15 kidneys treated with 40mg/kg AAI on day 2, 4 and 6 was examined by microarray.

2016-03-10 | E-GEOD-79063 | biostudies-arrayexpress

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