<difference-title>

De Les Feux de l'Amour - Le site Wik'Y&R du projet Y&R.
m
m
Ligne 1 : Ligne 1 :
Characterization of the Pol IIII transcriptome in AC16 cells To further characterize the non Pol II transcriptome in AC16 cells, we mapped 739 non Pol II [http://www.jibwiskatsaca.org/discussion-forum/index.php?p=/discussion/101397/discussion-the-epidermal-growth-factor-receptor-family-is-of-tremen-dous-biological-and-clinical-imp Discussion The epidermal growth factor receptor family is of tremen dous biological and clinical importance for many solid epithelial tumors] transcripts from GRO seq data generated amanitin. This [http://amongthedead.com/atdtalk/index.php?p=/discussion/44040/discussion-the-epidermal-growth-factor-receptor-family-is-of-tremen-dous-biological-and-clinical-imp Discussion The epidermal growth factor receptor family is of tremen dous biological and clinical importance for many solid epithelial tumors] set of non Pol II transcripts includes mainly tRNAs, rRNAs, some snRNAs, and transcripts generated from SINE repeat elements, as well as 172 novel, previously unan notated transcripts. The lengths of the majority of the [http://sikap.purwakartakab.go.id/app/discussion/98732/discussion-the-epidermal-growth-factor-receptor-family-is-of-tremen-dous-biological-and-clinical-imp Discussion The epidermal growth factor receptor family is of tremen dous biological and clinical importance for many solid epithelial tumors] 739 primary non Pol II transcripts are 400 nucleotides, which indicates that they are short, non coding RNAs. The biological functions associated with the up and down regulated gene sets are closely related to cardiac function. For example motor protein and myosin related muscle functions are directly related to the elec trophysiology of heart muscle. fibroblast prolif eration and endothelial to mesenchymal transition contribute to cardiac fibrosis. and mitochon drial function and lipid oxidation are closely related to normal cardiac physiology. These dynamic transcriptome changes reflect the time dependent shift ing of biological processes in cardiomyocytes in re sponse to TNF. Interestingly, genes related to muscle function and inflammation are upregulated immediately, whereas genes related to mitochondrial function and metabolism are downregulated first and upregulated later in the time course. These results highlight the sequential transcriptional responses that underlie shifting cellular responses in cardiomyo cytes in response to TNF treatment. We augmented this analysis using a database from the Cardiovascular Gene Ontology Annotation Initiative project, which contains more than 4,278 genes critical for cardiac physiology and pathology. A large fraction of both up and downregulated genes are in the cardiac associated gene list and 20% are regulated by TNF treatment. Interestingly, 166 of the 1,146 enhancers predicted by GRO seq are located near genes critical for cardiac physiology. Collectively, our analyses of the TNF altered transcrip tome indicate that the AC16 cellular state switches from maintenance of basal housekeeping functions to defense against inflammatory stress. TNF induced transcriptome changes result in corresponding alterations in the steady state levels of mRNAs and proteins As expected, the TNF induced changes in the AC16 transcriptome result in corresponding changes in mature mRNA and protein levels in a similar manner, but with delayed kinetics. For example, the robust up regulated transcription of key TNF target genes is followed by corresponding changes in the steady state levels of the cognate mRNAs and proteins, with a delay of approxi mately 20 to 100 minutes for mRNA and 120 to 240 mi nutes for proteins. These results clearly illustrate how the dynamically regulated transcriptome alters the cellu lar proteome.  
+
Specifically, significantly regulated genes were placed at the top or bottom of the list and ordered by descending or ascending fold changes, respectively. Less significantly regulated [http://forum.heismarried.com/discussion/590556/discussion-the-epidermal-growth-factor-receptor-family-is-of-tremen-dous-biological-and-clinical-imp Discussion The epidermal growth factor receptor family is of tremen dous biological and clinical importance for many solid epithelial tumors] genes were placed in the middle of the list and ordered by ascending or descending p values. Hierarchical clustering and heatmaps Hierarchical clustering was performed using the results of the GSEA. GO terms with the top ten Normalized Enrichment Scores were [http://www.sppaddict.com/discussion/464464/discussion-the-epidermal-growth-factor-receptor-family-is-of-tremen-dous-biological-and-clinical-imp Discussion The epidermal growth factor receptor family is of tremen dous biological and clinical importance for many solid epithelial tumors] selected and combined from both the upregulated and downregulated GO terms in each time point, compared to the 0 min treatment condition. Heatmaps were generated using the heat map. 2 function in the gplots package in R [http://blog.bizeso.com/BlogDetail.aspx?bid=b4261db3-ae65-4ad5-82f6-df47830ed25f Discussion The epidermal growth factor receptor family is of tremen dous biological and clinical importance for many solid epithelial tumors] with default parameters. Inputs for the heatmaps included nor malized GRO seq signals and NESs. For the latter, heatmaps comparing later to earlier time points were generated in a similar manner, but using different edgeR outputs for the comparisons. Background Genome wide mutagenesis and subsequent phenotype driven screening has been pivotal to a complete under standing of how complex biological processes operate in classical model organisms including flies, nematodes, and plants. The level of saturation in mutagenesis has been shown to be a critical parameter for this approach to determine all relevant genes involved in a biological function, without prior knowledge of the gene products. In mammalian model systems, much effort has been expended to saturate, i. e. to disclose all the genes involved in some specific biological pathways. However, the relatively large scale and labor intensity of experi ments have hampered the achievement of actual sat uration mutagenesis, especially for recessive traits that require biallelic mutations to manifest detectable phe notypes. To overcome these drawbacks, the haploid mouse embryonic stem cell system, in which a single hit mutation can directly lead to phenotypic changes without being compensated by the second copy of the gene, has been recently developed, and reviewed in. In this study, 86. 0% of ESCs remained haploid at the point of ENU treatment and the rest were diploid. In the diploidized ESCs, because either of the duplicated X chro mosomes could undergo X inactivation or chromosomal loss, an ENU induced mutation on the other allele of the X linked gene would immediately lead to a complete loss of function. This meant that, in the mixture of hap loid and diploid ESCs, X linked mutants would be more frequently obtained than autosomal recessive mutants. In the present study, prior to mutagenesis with ENU, we in troduced extra copies of human PIGA cDNA into the H129 2 haploid ESC line, but not into the HAP 1 haploid ESC line. As a result, X linked Piga mutants apparently dominated in the HAP 1 ESC population, whereas no Piga mutants, but instead various other autosomal mutants, appeared in the H129 2 ESC population. Pigg, Pign, and Pigq are known by their hypomorphic loss of function phenotypes. Consistently, a re cent ESC based mutagenesis study using the clustered regularly interspaced short palindromic repeats Cas system also screened for the resistance to toxin and failed to obtain Pigg, Pign, and Pigq mutants.
 
+
These results also further support our ob servation that AC16 cardiomyocytes secrete cytokines in response to TNF stimulation. These cyto kines may play an essential role in the overall effects of inflammation in cardiac biology. Role of non coding RNAs and the TNF induced proinflammatory transcriptome Protein coding genes represent only part of the AC16 transcriptome. the functions carried out by the non coding transcripts that we identified may also play critical roles in the inflammatory response in cardiomyocytes.
+

Version du 27 décembre 2015 à 19:39

Specifically, significantly regulated genes were placed at the top or bottom of the list and ordered by descending or ascending fold changes, respectively. Less significantly regulated Discussion The epidermal growth factor receptor family is of tremen dous biological and clinical importance for many solid epithelial tumors genes were placed in the middle of the list and ordered by ascending or descending p values. Hierarchical clustering and heatmaps Hierarchical clustering was performed using the results of the GSEA. GO terms with the top ten Normalized Enrichment Scores were Discussion The epidermal growth factor receptor family is of tremen dous biological and clinical importance for many solid epithelial tumors selected and combined from both the upregulated and downregulated GO terms in each time point, compared to the 0 min treatment condition. Heatmaps were generated using the heat map. 2 function in the gplots package in R Discussion The epidermal growth factor receptor family is of tremen dous biological and clinical importance for many solid epithelial tumors with default parameters. Inputs for the heatmaps included nor malized GRO seq signals and NESs. For the latter, heatmaps comparing later to earlier time points were generated in a similar manner, but using different edgeR outputs for the comparisons. Background Genome wide mutagenesis and subsequent phenotype driven screening has been pivotal to a complete under standing of how complex biological processes operate in classical model organisms including flies, nematodes, and plants. The level of saturation in mutagenesis has been shown to be a critical parameter for this approach to determine all relevant genes involved in a biological function, without prior knowledge of the gene products. In mammalian model systems, much effort has been expended to saturate, i. e. to disclose all the genes involved in some specific biological pathways. However, the relatively large scale and labor intensity of experi ments have hampered the achievement of actual sat uration mutagenesis, especially for recessive traits that require biallelic mutations to manifest detectable phe notypes. To overcome these drawbacks, the haploid mouse embryonic stem cell system, in which a single hit mutation can directly lead to phenotypic changes without being compensated by the second copy of the gene, has been recently developed, and reviewed in. In this study, 86. 0% of ESCs remained haploid at the point of ENU treatment and the rest were diploid. In the diploidized ESCs, because either of the duplicated X chro mosomes could undergo X inactivation or chromosomal loss, an ENU induced mutation on the other allele of the X linked gene would immediately lead to a complete loss of function. This meant that, in the mixture of hap loid and diploid ESCs, X linked mutants would be more frequently obtained than autosomal recessive mutants. In the present study, prior to mutagenesis with ENU, we in troduced extra copies of human PIGA cDNA into the H129 2 haploid ESC line, but not into the HAP 1 haploid ESC line. As a result, X linked Piga mutants apparently dominated in the HAP 1 ESC population, whereas no Piga mutants, but instead various other autosomal mutants, appeared in the H129 2 ESC population. Pigg, Pign, and Pigq are known by their hypomorphic loss of function phenotypes. Consistently, a re cent ESC based mutagenesis study using the clustered regularly interspaced short palindromic repeats Cas system also screened for the resistance to toxin and failed to obtain Pigg, Pign, and Pigq mutants.

Outils personnels