Rattus norvegicus
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA288785 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Ischemic injuries will lead to necrotic tissue damage, and post-ischemia angiogenesis plays critical roles in blood flow restoration and tissue recovery. Recently, several types of small RNAs have been reported to be involved in this process. In this study, we first generated a rat brain ischemic model to investigate the involvement of new types of small RNAs in ischemia. We utilized deep sequencing and bioinformatics analyses to demonstrate that the level of small RNA fragments derived from tRNAs was strikingly up-regulated in the ischemic rat brain. Among these sequences, tRNAVal- and tRNAGly-derived small RNAs account for the most abundant segments. The up-regulation of tRNAVal- and tRNAGly-derived fragments was verified through northern blot and quantitative PCR analyses. The levels of these two fragments also increased in a mouse hindlimb ischemia model and cellular hypoxia model. Importantly, the overexpression of tRNAVal- and tRNAGly-derived fragments in endothelial cells inhibited cell proliferation, migration and tube formation. Our results indicate that tRNA-derived fragments are involved in tissue ischemia, and we demonstrate for the first time that tRNAVal- and tRNAGly-derived fragments inhibit angiogenesis by modulating the function of endothelial cells. Examine small RNAs involved in post-ischemia angiogenesis
2016-03-16 | E-GEOD-70473 | biostudies-arrayexpress
Project description:Ischemic injuries will lead to necrotic tissue damage, and post-ischemia angiogenesis plays critical roles in blood flow restoration and tissue recovery. Recently, several types of small RNAs have been reported to be involved in this process. In this study, we first generated a rat brain ischemic model to investigate the involvement of new types of small RNAs in ischemia. We utilized deep sequencing and bioinformatics analyses to demonstrate that the level of small RNA fragments derived from tRNAs was strikingly up-regulated in the ischemic rat brain. Among these sequences, tRNAVal- and tRNAGly-derived small RNAs account for the most abundant segments. The up-regulation of tRNAVal- and tRNAGly-derived fragments was verified through northern blot and quantitative PCR analyses. The levels of these two fragments also increased in a mouse hindlimb ischemia model and cellular hypoxia model. Importantly, the overexpression of tRNAVal- and tRNAGly-derived fragments in endothelial cells inhibited cell proliferation, migration and tube formation. Our results indicate that tRNA-derived fragments are involved in tissue ischemia, and we demonstrate for the first time that tRNAVal- and tRNAGly-derived fragments inhibit angiogenesis by modulating the function of endothelial cells.
2016-03-16 | GSE70473 | GEO
Project description:Genome-wide identification of rat long non-coding RNAs
| PRJNA253201 | ENA
Project description:Inflammation is a key component of pathological angiogenesis. Here we induce cornea neovascularisation using sutures placed into the cornea, and sutures are removed to induce a regression phase. We used whole transcriptome microarray to monitor gene expression profies of several genes
2016-08-18 | GSE81418 | GEO
Project description:Genome-wide identification of rat long non-coding RNAs (microarray)
| PRJNA254521 | ENA
Project description:MicroRNAs (miRNAs) are small non-protein-coding RNAs that are incorporated into the RNA-induced silencing complex (RISC) and inhibit gene expression by regulating the stability and/or the translational efficiency of target mRNAs. p75NTR, which is scarcely present in healthy endothelial cells (ECs), becomes strongly expressed by capillary ECs after induction of peripheral ischemia in type-1 diabetic mice. p75NTR expression promotes endothelial cells apoptosis and inhibits angiogenesis. In order to identify miRNAs sub-sequentely modulated by p75NTR, miRNA expression profiles of human umbilical vein endothelial cells (HUVEC) over-expressing p75NTR were generated, allowing the identification of miRNAs modulated upon p75NTR up-regulation. HUVEC over-expressing p75NTR or Null (empty vector) were generated by adenoviral infection. miRNA expression profiles were then measured and miRNAs modulated upon p75NTR up-regulation were identified.
2014-01-11 | E-GEOD-53899 | biostudies-arrayexpress
Project description:MicroRNAs (miRNAs) are small non-protein-coding RNAs that are incorporated into the RNA-induced silencing complex (RISC) and inhibit gene expression by regulating the stability and/or the translational efficiency of target mRNAs. p75NTR, which is scarcely present in healthy endothelial cells (ECs), becomes strongly expressed by capillary ECs after induction of peripheral ischemia in type-1 diabetic mice. p75NTR expression promotes endothelial cells apoptosis and inhibits angiogenesis. In order to identify miRNAs sub-sequentely modulated by p75NTR, miRNA expression profiles of human umbilical vein endothelial cells (HUVEC) over-expressing p75NTR were generated, allowing the identification of miRNAs modulated upon p75NTR up-regulation.
2014-01-11 | GSE53899 | GEO
Project description:Novel long non-coding RNAs are involved in cellular response to angiotensin II signaling
| PRJNA167134 | ENA
Project description:Non-coding RNAs play an important role in the pathogenesis of human malignancies. So far, microRNAs have been investigated in detail in clear cell renal cell carcinoma, but the knowledge about other small non-coding RNAs like snoRNA, tRNA and piRNA remains small. There is increasing evidence that these non-coding RNAs are also involved in regulation of gene expression, and we therefore performed small RNA sequencing in a cohort of 18 corresponding normal and malignant tissue samples from patients with clear cell renal cell carcinoma. We observed differential expression of microRNAs, but also some dysregulated tRNA and snoRNA in clear cell renal cell carcinoma tissue
2016-10-31 | GSE73342 | GEO
Project description:Here, we analyzed ischemic stroke induced changes in microRNA levels in mouse brain using permanent cerebral ischemia model. We performed enrichment of small RNAs from peri-ischemic brain region for RNA sequencing and present data set containing several small RNA species to facilitate the discovery of ischemia induced changes in non-coding RNAs.
2023-01-03 | GSE215212 | GEO