Profiling mRNA, miRNA and lncRNA expression changes in endothelial cells in response to increasing doses of ionizing radiation [miRNA-seq]
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ABSTRACT: small RNA seq for miRNA differential expression analysis were performed in primary human aotic endothelial cells treated with increasing doses of radiation (1 Gy, 2 Gy, 4 Gy, 8 Gy and 10 Gy). Total RNA was collected 24 h and 72 h after radiation. Comparisons were made with unirradiated cells plated for 24 h and 72 h repsectively.
Project description:RNA seq for lncRNA and mRNA differential expression analysis, and small RNA seq for miRNA differential expression analysis were performed in primary human aotic endothelial cells treated with increasing doses of radiation (1 Gy, 2 Gy, 4 Gy, 8 Gy and 10 Gy). Total RNA was collected 24 h and 72 h after radiation. Comparisons were made with unirradiated cells plated for 24 h and 72 h repsectively.
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.
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.
Project description:cDNA microarray study of X-radiation (XR) resistant HCT116-Clone2 cells without XR, 10 minutes, 6 hours, or 24 hours after XR at 4Gy versus unirradiated HCT116-Clone10 cells. HCT116-Clone10 cells have similar XR response with parental HCT116 cells. This SuperSeries is composed of the following subset Series: GSE798: Unirradiated HCT116-Clone2 cells GSE799: HCT116-Clone2 cells 10 min after XR treatment at 4 Gy GSE800: HCT116-Clone2 cells 6 hours after XR treatment at 4 Gy GSE801: HCT116-Clone2 cells 24 hours after XR treatment at 4 Gy Refer to individual Series
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.
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.
Project description:Prenatal irradiation can cause neurodevelopmental defects which are characterized by a reduction in brain size (microcephaly). The underlying molecular mechanisms in humans have so far not been studied. Here, we leveraged human forebrain organoids as a model for human embryonic brain development to investigate time- and dose-dependent effects of radiation on organoid growth. For this, organoids of 14 days and 56 days old were irradiated with acute X-ray doses of 0.5 Gy or 2 Gy and compared to controls. Using bulk RNA-seq at different early (6 h and 24 h) and late (14 days) time points after irradiation, we investigated mechanisms of radiation-induced growth defects which resulted from activation of the DNA damage response (cell cycle arrest, DNA repair, apoptosis), premature differentiation and the coordinated repression of primary microcephaly genes.
Project description:Untargeted Temporal Analysis of Serum using FPSE after 8 Gy radiation
Time points of room temperature serum analyzed: 1, 3, 24, 72, and 120 hours.
Project description:Untargeted Temporal Analysis of Serum using FPSE after 8 Gy radiation
Time points of room temperature serum analyzed: 1, 3, 24, 72, and 120 hours.