Project description:In this study, pull down assays combined with mass spectrometry analysis were performed in HL-1 cardiomyocytes transfected with control plasmid (OE-Vector) or LOC107984012-overexpression plasmid to identify the repertoire of LOC107984012 interacting proteins.
Project description:Analysis of murine cardiomyocyte cell line HL-1 treated with Ivermectin or Importazole. Results provide insight into the pathways regulated by the treatments.
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.
Project description:Expression profiling of cultured HL-1 cardiomyocytes subjected to hypoxia for 8 hours. Three samples from each condition were analyzed
Project description:We performed two independent siRNA mediated knockdowns of Srf (Srf si1 & Srf si2) and an unspecific siRNA (siNon) in mouse cardiomyocytes HL-1 cells. Small RNAs were sequenced by Illumina/Solexa next-generation (single-end) sequencing technology. The sequence reads were mapped to the mouse reference genome (NCBI v37, mm9) using MicroRazerS. MicroRazerS searches for the longest possible prefix-match of each read, i.e. the longest possible contiguous match starting at the first base. Hence, it is robust to possible adapter sequence at the 3' end of a read and requires no adapter trimming. Small RNA-seq profiles of two siRNA mediated knockdowns of Srf and an unspecific siRNA in mouse cardiomyocytes
Project description:Introduction: Exosomes are nano-sized extracellular vesicles, released from various cells, which can stimulate or repress responses in target cells. We have recently shown that cultured cardiomyocytes release exosomes and that they, in turn, are involved in facilitating events in target cells by alteration of gene expression. We investigated whether external stimuli of the cardiomyocyte might influence the released exosome characteristics. Material and Methods: Exosomes were isolated from media collected from cultured cardiomyocyte (HL-1) cells with or without growth factor treatment (TGF-beta2 and PDGF-BB), with a series of differential centrifugations. The exosomes were characterized with dynamic light scattering (DLS) and Western blot and analysed with Illumina whole genome microarray gene expression. Results: An average size of 50-80 nm in diameter with no difference between treatment groups was found. Analysis of the mRNA content revealed 623 transcripts in the control group, 691 in the TGF-beta2-treated group and 362 in the PDGF-BB-treated group. 235 transcripts were common for all three groups. Conclusion: We conclude that there is a difference in mRNA content between exosomes derived from cultured cardiomyocytes stimulated with growth factors. We also conclude that all exosomes contain a basic package consisting of ribosomal transcripts and mRNAs coding for proteins with functions within the energy supply system. To study if the transcriptional content in exosomes derived from untreated and growth factor-treated cultured cardiomyocytes (HL-1) differ, and if so, can this difference be explained, 4 control (untreated) exosome samples, 4 TFG-beta2-treated cardiomyocyte-derived exosome samples and 4 PDGF-BB-treated cardiomyocyte-derived exosomes were studied.
Project description:We performed two independent siRNA mediated knockdowns of Srf (Srf si1 & Srf si2) and an unspecific siRNA (siNon) in mouse cardiomyocytes HL-1 cells. Small RNAs were sequenced by Illumina/Solexa next-generation (single-end) sequencing technology. The sequence reads were mapped to the mouse reference genome (NCBI v37, mm9) using MicroRazerS. MicroRazerS searches for the longest possible prefix-match of each read, i.e. the longest possible contiguous match starting at the first base. Hence, it is robust to possible adapter sequence at the 3' end of a read and requires no adapter trimming.