Integrated transcriptomic and proteomic analysis of primary human umbilical vein endothelial cells
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ABSTRACT:
PROVIDER: PRJNA475283 | ENA |
REPOSITORIES: ENA
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Project description:Human umbilical vein endothelial cells (HUVECs) are a widely-used model system to study pathological and physiological processes associated with the cardiovascular system. An understanding of genes and proteins that are expressed in any cell type is a fundamental need which facilitates studies of molecular changes in disease states and response to various stimuli. In this study, we employed next generation sequencing and mass spectrometry to profile the transcriptome and proteome of primary HUVECs. Analysis of 145 million paired-end reads from next generation sequencing confirmed expression of 12,186 protein-coding genes (FPKM>0.1), 439 novel long non-coding RNAs and revealed 6,089 novel isoforms that were not annotated in GENCODE. A comparison of the transcripts against human gene expression data for 53 tissues catalogued by the Genotype-Tissue Expression (GTEx) project revealed a number of HUVEC-specific genes. Proteomics analysis identified 6,477 proteins including confirmation of N-termini for 1,091 proteins and isoforms for 149 proteins for which transcriptomic evidence was observed. Alternate translational start sites for seven proteins and alternate splicing in five proteins were also identified. A database search to specifically identify other post-translational modifications provided evidence for a number of modification sites on 117 proteins which included ubiquitylation, lysine acetylation and mono, di- and tri-methylation events. Based on the data from this study and a survey of other databases, we provide evidence for 11 “missing proteins,” which are proteins for which there was insufficient or no protein level evidence. Peptides supporting missing protein and novel events were validated by comparison of MS/MS fragmentation patterns with synthetic peptides. By creating a custom database of proteins containing sample-specific single amino acid variants (SAAV), we also identified 245 variant peptides derived from 207 expressed proteins. Overall, we believe that the integrated approach employed in this study is widely applicable to study any primary cell type for deeper molecular characterization.
2019-10-28 | GSE115536 | GEO
Project description:Human umbilical vein endothelial cells (HUVECs) are a widely-used model system to study many pathological and physiological processes associated with the cardiovascular system. An understanding of genes and proteins that are expressed in any cell type is a fundamental need which facilitates study of molecular changes in disease states and response to various stimuli. In this study, we employed next generation sequencing and mass spectrometry to profile the transcriptome and proteome of primary HUVECs. Analysis of 145 million paired-end reads from next generation sequencing confirmed expression of 12,186 protein-coding genes (FPKM>0.1), 439 novel long non-coding RNAs and revealed 6,089 novel isoforms that were not annotated in GENCODE. A comparison of the transcripts against human gene expression data for 53 tissues catalogued by the Genotype-Tissue Expression (GTEx) project revealed a number of HUVEC-specific genes. Proteomics analysis identified 6,477 proteins including confirmation of N-termini for 1,091 proteins and isoforms for 149 proteins for which transcriptomic evidence was also observed. Alternate translational start sites for seven proteins and alternate splicing in seven proteins were also identified. A database search to specifically identify other post-translational modifications provided evidence for a number of modification sites on 117 proteins which include ubiquitylation, lysine acetylation, mono, di- and tri-methylation. Based on the data from this study and a survey of other databases, we provide evidence for 11 “missing proteins,” which are proteins for which protein level evidence is lacking or insufficient. Proteogenomic analysis identified novel N-termini and exon-exon junctions at both RNA and protein levels by searching against a translated database created from alternate transcript assembly. Peptides supporting the novel events of expressed proteins are further validated by synthesis and spectral comparison. Alternative allelic expression of genes arising from transcription of two alleles of a gene in chromosome pairs is observed. By creating a custom database of proteins incorporated with sample specific single amino acid variations (SAAV) we identified alternative alleles for 207 expressed proteins with 245 peptides with SAAV. Overall, we believe that the integrated approach employed in this study is widely applicable to study any primary cell type for deeper molecular characterization.
2019-04-24 | PXD009687 | Pride
Project description: Not available
| S-EPMC6812510 | biostudies-literature
Project description:We profiled global gene expression in primary human umbilical vein endothelial cells to determine the gene expression changes associated with knocking down PKM2 and p53. We identified a p53 dependent transcriptional response that remodels metabolism in cells lacking p53, thus limiting cell growth. Human Umbilical Vein Endothelial Cells were transfected with siRNA duplexes targeting PKM2 and / or p53, RNA was extracted and subjected to RNA sequencing
2016-07-27 | E-GEOD-84877 | biostudies-arrayexpress
Project description:Oxidoreductase enzymes are critical to redox regulation of intracellular proteins within human cells. We used microarrays to identify which oxidreducatse genes are expressed in unstimulated human umbilical vein endothelial cells. Human umbilical vein endothelial cells were grown under optimal conditions and then RNA extracted and hybridized on Affymetrix microarrays.
2010-06-16 | E-GEOD-22166 | biostudies-arrayexpress
Project description:We quantified differential microRNA (miRNA) expression in Human umbilical vein endothelial cells （HUVECs）response to Angiogenin (ANG) treatment.These data were used to determine which miRNAs are altered on ANG in Human umbilical vein endothelial cells.
2016-12-13 | GSE92256 | GEO
Project description:We assess the effect of CYR61 treatment on the transcriptome of human umbilical vein endothelial cells.
2023-10-18 | GSE222101 | GEO
Project description:Oxidoreductase enzymes are critical to redox regulation of intracellular proteins within human cells. We used microarrays to identify which oxidreducatse genes are expressed in unstimulated human umbilical vein endothelial cells.
2010-06-05 | GSE22166 | GEO
Project description:Human umbilical cords were obtained from the Lucille Packard Children Hospital. In this study, we devised a rapid isolation scheme to preserve the in vivo phenotype of each endothelial subtype. ECs were first isolated from umbilical cords by collagenase perfusion through the vein or artery as described. Cells were further purified using a Percoll density gradient (Amersham Biosciences, Piscataway, NJ) to remove residual erythrocytes and platelets. 1-5 x 106 ECs were then cultured overnight on gelatin-coated T12.5 flasks in Clonetics EGM-2 media (Cambrex Bio Science, Walkersville, MD) in which the ECs generally reached confluence the next morning. The confluent EC were trypsinized and subjected to two rounds of immuno-magnetic beads purification, adapted from a published purification protocol. There was a negative selection step using CD14, CD45 and CD64 to remove residual contaminating leukocytes, followed by positive selection using a mouse anti-endothelial cell monoclonal antibody (anti-CD146/clone P1H12 purchased from Chemicon, Temecula, CA). Total processing time was limited to 20 to 24 hours. The homogeneous, viable, primary ECs were used immediately to construct the library. The construction of SAGE libraries was performed with the I-SAGE kit (Invitrogen, Carlsbad, CA) per manufacturer’s instructions Keywords: other
2009-12-31 | GSE1539 | GEO
Project description:Examine the toxic effect and molecular mechanisms of PM2.5 in primary human umbilical vein endothelial cells (HUVECs) . We used microarrays to detail the global programme of gene expression in HUVECs exposed to PM2.5 and identified distinct classes of up-regulated genes.
2016-08-11 | GSE85468 | GEO