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β3 agonist administration before reperfusion reduces infarct size and improves long term cardiac function in small and large animal models of myocardial infarction

ABSTRACT: RNA sequencing and subsequent bioinformatics analyses were performed at early reoxygenation stages in HL-1 cardiomyocytes treated or not with BRL37344 Methods: HL-1 cardiomyocytes were subjected to Hypoxia/Reoxygenation (6h/1h) with/without a β3AR agonist (BRL37344 5µmol/L). mRNA profiles were generated by deep sequencing, in triplicate, using Illumina GAIIx.The sequence reads that passed quality filters were quantified using BWA aligned reads using RSEM. qRT–PCR validation was performed using SYBR Green assay. Results: After 6h of hypoxia followed by 1h reoxygenation, 866 genes were differentially expressed upon β3AR stimulation by BRL37344. Among these, 177 were at least 2-fold up or downregulated. Conclusions: Our results show that Hsp70 plays a key role in the cardioprotection afforded by β3AR agonism in cardiomyocytes during the early window of H/R.

ORGANISM(S): Mus musculus

PROVIDER: GSE42999 | GEO | 2014/12/18

SECONDARY ACCESSION(S): PRJNA184170

REPOSITORIES: GEO

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M-NM-23 agonist administration before reperfusion reduces infarct size and improves long term cardiac function in small and large animal models of myocardial infarction

Project description:RNA sequencing and subsequent bioinformatics analyses were performed at early reoxygenation stages in HL-1 cardiomyocytes treated or not with BRL37344 Methods: HL-1 cardiomyocytes were subjected to Hypoxia/Reoxygenation (6h/1h) with/without a M-NM-23AR agonist (BRL37344 5M-BM-5mol/L). mRNA profiles were generated by deep sequencing, in triplicate, using Illumina GAIIx.The sequence reads that passed quality filters were quantified using BWA aligned reads using RSEM. qRTM-bM-^@M-^SPCR validation was performed using SYBR Green assay. Results: After 6h of hypoxia followed by 1h reoxygenation, 866 genes were differentially expressed upon M-NM-23AR stimulation by BRL37344. Among these, 177 were at least 2-fold up or downregulated. Conclusions: Our results show that Hsp70 plays a key role in the cardioprotection afforded by M-NM-23AR agonism in cardiomyocytes during the early window of H/R. mRNA profiles from cardiomyocyte subjected to H/R (6h/1h) with/without a M-NM-23AR agonist were generated by deep sequencing, in triplicate, using Illumina GAIIx.

2014-12-18 | E-GEOD-42999 | biostudies-arrayexpress

Brain transcriptome of Larimichthys crocea (Large yellow croaker) under hypoxia

Project description:Brain transcriptome at 0h, 1h, 3h, 6h, 12h, 24h, 48h after hypoxia stress

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Hypoxia-induced transcriptome and chromatin accessibility alterations in mouse cardiac cell line HL-1

Project description:In this study, we performed temporal profiling of transcriptome and chromatin accessibility in HL-1 cells for understanding the molecular mechanisms underlying cardiac responses to hypoxia. We collected HL-1 cells under four conditions (4 h and 8 h of hypoxia exposure, 24 h reoxygenation and the normal condition), applied RNA-seq and ATAC-seq to them and performed pairwise comparison of gene expression and open chromatin status on a genome-wide scale.

2021-12-31 | E-MTAB-8814 | biostudies-arrayexpress

GLP-1 induced transcriptomic profile in INS-1 cells

Project description:Aim: The purpose of this RNAseq study is to gain insight into the effect that Glucagon Like Peptide-1(GLP-1) or BMS-21 (11 amino acid GLP-1 mimetic) has on the transcriptomic profile of an insulin secreting pancreatic beta cell line INS-1 at 1h and 6h. Methods: The mRNA-focussed libraries (constructed using TruSeq RNA Library Prep Kit v2) of GLP-1 or BMS-21 treated INS-1 cells at 1h or 6h were generated by sequencing, in quadruplicate, using an Illumina Hiseq2000. De-multiplexing and FASTQ sequence data was generated using the Illumina CASAVA1.8.2 pipeline. The sequence reads that passed quality filters were analyzed at the transcript level using the following. Alignment using TopHat (2.0.12) + Bowtie (2.2.3.0) to the illumina rat iGenome (build 75 - Rnor_5.0 (GCA_000001895.3)), reads summarised using Subread-feature counts (1.4.6) and differential gene analysis using DESeq2 (1.6.3) within Rstudio (0.98.945). Results: GLP-1 treatment of INS-1 cells induced many transcriptomic changes in gene expression at both 1h and 6h relative to control at 1h and 6h. At 1h following GLP-1 treatment there were 674 genes differentially expressed (470 up-regulated and 204 down-regulated, p-adj <0.05). Further, at 6h following exposure to GLP-1 treatment there were 3192 genes differently expressed (1709 up-regulated and 1,483 down-regulated, p-adj <0.05). Comparison of GLP-1 and BMS-21 treatments revealed highly similar transcriptomic profiles at both the 1h and 6h timepoints. Conclusion: GLP-1 has a varied effect on the transcriptomic profile of INS-1 cells.

2018-07-28 | GSE102003 | GEO

HL-1 cardiomyocyte response to hypoxia

Project description:Expression profiling of cultured HL-1 cardiomyocytes subjected to hypoxia for 8 hours.

2011-03-16 | GSE27975 | GEO

HL-1 cardiomyocyte response to hypoxia

Project description:Expression profiling of cultured HL-1 cardiomyocytes subjected to hypoxia for 8 hours. Three samples from each condition were analyzed

2011-03-16 | E-GEOD-27975 | biostudies-arrayexpress

Project description:Effect of shAlox12 of cardiomyocytes after hypoxia-reoxygenation challenge

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2016-11-01 | GSE70805 | GEO

Temporal analysis of physiological and transcriptome responses during high light exposure that lead to dynamic acclimation in Arabidopsis

Project description:The photosynthetic capacity of mature leaves increases upon exposing plants to continuous or intermittent high light (HL). This is termed dynamic acclimation, which is an important determinant of plant productivity. We hypothesized that genes coding for transcription regulators (TRs), which respond rapidly (≤1h) and transiently to HL, initiate dynamic acclimation. To find such genes, a highly replicated time series transcriptomic dataset was generated from leaf 7 of low light (LL)-grown Arabidopsis thaliana plants subjected to HL for up to 6h. This revealed 3844 HL-responsive differentially expressed genes (DEGs). 49 transiently HL-induced TR DEGs were selected for Bayesian modeling, which revealed that B-BOX TRANSCRIPTION (CO) FACTOR32 (BBX32) was the most connected gene in an inferred network. Dynamic acclimation was elicited in Arabidopsis Col-0 by exposure to daily 4h HL over 5 days. Using this procedure on over-expressing (OE) and null mutant plants, it was shown that BBX32 is a negative regulator of dynamic acclimation. The same modeling connected BBX32 to the TR gene LONG HYPOCOTYL5 (HY5), but unlike BBX32, HY5 was shown to positively regulate dynamic acclimation. The severely diminished response to daily HL of BBX32–OE/hy5 plants suggest that in wild type plants, BBX32 and HY5 exert a balanced, flexible and complete regulation of dynamic acclimation.

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