Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Small RNA sequencing of serum collected from mice before and after manifestation of tumor

ABSTRACT: To investigate the effectiveness of performing 5' tRNA half depletion, we evaluated the association of tumor burden on circulating miRNAs present in mouse serum. Three nude mice (NCr) were orthotopically injected with SH-SY5Y human neuroblastoma cells. Serum samples were collected one week before cell injection and two weeks after injection, when mice had palpable tumors. We performed 5' tRNA half depletion using biotinylated probes and streptavidin beads and prepared small RNA libraries using the TruSeq Small RNA Library Prep kit. By depleting the 5' tRNA halves in the serum-derived RNA samples, we were able to detect 3 times more differentially expressed miRNAs when comparing serum from mice carrying orthotopically engrafted tumors with serum from healthy control mice. We detected 34 differentially expressed miRNAs, of which six are unique to humans, 13 unique to mice and 15 have complete conservation between the two species.

ORGANISM(S): Mus musculus

PROVIDER: GSE88728 | GEO | 2017/02/22

SECONDARY ACCESSION(S): PRJNA348374

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
		Other

Items per page:

1 - 1 of 1

Similar Datasets

d2b64d52-5b4d-40f3-af64-6a1bb88a860d - samples

Project description:Small RNA sequencing data (TruSeq small RNA library preparation kit v2) from serum samples and tumor tissue of orthotopically injected mice (SH-SY5Y cell line) and unengrafted mice, treated with idasanutlin, temsirolimus and vehicle control.

| EGAD00001009625 | EGA

Small RNA sequencing of serum-derived RNA for the evaluation of 5' tRNA halves depletion protocols

Project description:5' tRNA halves are abundantly present in small RNA libraries prepared from serum samples, thereby limiting the detection of other small RNA species. In this study, we developed and compared two protocols for the selective depletion of 5' tRNA halves in RNA isolated from murine serum samples. To evaluate the efficacy of both protocols on small RNA sequencing, we performed the two 5' tRNA halves depletion protocols on total RNA isolated from a serum pool collected from healthy mice. Each RNA sample was divided into three and the resulting fractions were either depleted using beads or RNase H, or used as a control. The experiment was performed in triplicate. Upon depletion, libraries were prepared using TruSeq Small RNA Library Preparation kit. For both protocols, very high depletion efficiencies were observed, with more than 99% of the targeted tRNA-types being depleted. This resulted in a more than 6-fold increase in mapped miRNA reads and 60% more detected mature miRNAs when performing small RNA sequencing on murine serum samples. Importantly, we observed no considerable effects on the relative expression values of miRNAs.

2017-02-22 | GSE88913 | GEO

Circulating microRNA and 5’ tRNA halves signatures of genotype-by-age interactions in the longlived Ames dwarf mouse.

Project description:Recent evidence demonstrates that serum levels of specific small noncoding RNAs (sncRNAs) including miRNAs and 5’ tRNA halves significantly change with age. The ability of circulating sncRNAs to act as signaling molecules and regulate a broad spectrum of cellular functions implicates them as key players in the aging process. To discover circulating sncRNAs that impact aging in the long-lived Ames dwarf mice, we conducted deep sequencing of small RNAs extracted from serum of young and old mice. Our analysis showed genotype-specific changes in the circulating levels of 43 miRNAs and 19 5’ tRNA halves during aging [Genotype-by-Age interaction (GbA)]. GbA miRNAs showed four distinct expression patterns and significant over-targeting of transcripts involved in age-related processes. Functional enrichment analysis of putative miRNA targets highlighted cellular processes such as tumor suppression, anti-inflammatory response, and modulation of Wnt, insulin, mTOR, and MAPK signaling pathways, among others. The comparative analysis of circulating GbA miRNAs in Ames mice with circulating miRNAs modulated by calorie restriction (CR) in another long-lived mouse suggests CR-like and CR-independent mechanisms contributing to longevity in the Ames mouse. In conclusion, we showed for the first time a signature of circulating miRNAs and 5’-tRNA halves modulated by age in the long-lived Ames mouse.

2018-05-27 | GSE69274 | GEO

RNA-seq on neuroblastoma PDX model COG-N-519 treated with control miR-1283 and test miR-99b-5p mimics

Project description:COG-N-519 primary neuroblastoma cells were innoculated by subcutaneous injection into NSG mice. When tumours reached a size of 100-200mm3 miRNAs conjugated to nanoparticles were injected intratumourally every 2 days for 1 week. 24 hr after the last injection, snap frozen tumour tissue was harvested for RNA extraction and RNA-seq analysis.

| EGAS00001005368 | EGA

RNA-seq on neuroblastoma PDX model COG-N-519 treated with control miR-1283 and test miR-99b-5p mimics

| EGAS00001005581 | EGA

Longitudinal evaluation of serum microRNAs as biomarkers for neuroblastoma burden and therapeutic p53 reactivation

Project description:Accurate assessment of treatment response and residual disease is indispensable for the evaluation of cancer treatment efficacy. However, performing tissue biopsies for longitudinal follow-up poses a major challenge in the management of solid tumours like neuroblastoma. In the present study, we evaluated whether circulating miRNAs are suitable to monitor neuroblastoma tumour burden and whether treatment-induced changes of miRNA abundance in the tumour are detectable in serum. We performed small RNA sequencing on longitudinally collected serum samples from mice carrying orthotopic neuroblastoma xenografts that were exposed to treatment with idasanutlin or temsirolimus. We identified 57 serum miRNAs to be differentially expressed upon xenograft tumour manifestation, out of which 21 were also found specifically expressed in the serum of human high-risk neuroblastoma patients. The murine serum levels of these 57 miRNAs correlated with tumour tissue expression and tumour volume, suggesting potential utility for monitoring tumour burden. In addition, we describe serum miRNAs that dynamically respond to p53 activation following treatment of engrafted mice with idasanutlin. We identified idasanutlin-induced serum miRNA expression changes upon one day and 11 days of treatment. By limiting to miRNAs with a tumour-related induction, we put forward hsa-miR-34a-5p as a potential pharmacodynamic biomarker of p53 activation in serum.

| EGAS00001006678 | EGA

Pre-metastatic expression array day 7

Project description:To follow the earliest transcriptional changes in pre-metastatic tissues, we orthotopically injected 4T1 cells into the mammary fat pad of female nude mice. Control mice were orthotopically injected with PBS. 7 days post tumor engraftment, the mice were sacrificed and thoroughly perfused with ice cold PBS, and lung and liver samples were flash frozen in liquid nitrogen. Following RNA extraction, the lung and liver RNA samples were analyzed on MOE430A2 Affymetrix arrays using R/Bioconductor software. Expression array was performed on lung or liver tissue from control or tumor-bearing mice. Lung and liver tissues were isolated from 3 control mice (injected with PBS) and 3 tumor-bearing mice (injected with 4T1 cells) 7 days post injection.

2011-07-24 | E-GEOD-30885 | biostudies-arrayexpress

Arabidopsis thaliana

Project description:AtGenExpress: Pathogen Series: Pseudomonas half leaf injection

| PRJNA96977 | ENA

Expression profiling in miR-290 6dt1 mammary tumors

Project description:mRNA expression data from mammary tumors extracted 30 days after orthotopic injection of miR-290-expressing and negative control 6dt1 cells into female FVB/N mice. At 6 weeks of age, FVB/N female mice were orthotopically injected with 1.0x10E5 6dt1 cells, either expressing miR-290 or a negative control RNA construct. 4 negative control tumors and 3 miR-290 tumors were analyzed.

2013-01-15 | E-GEOD-43485 | biostudies-arrayexpress

Using small RNA-Seq to verify that 5' tRNA-fMet1 half is over-expressed in outer membrane vesicles (OMVs)

Project description:5′ tRNA-fMet1 half (5′- CGCGGGGTGGAGCAGTCTGGTAGCTCGTCGGGCTC-3′) was cloned into the arabinose-inducible expression vector pMQ70. PA14 was transformed with the tRNA-fMet1 half expression vector or empty vector via electroporation. Characterization of the sRNA content of OMVs secreted by 5' tRNA-fMet1 half over-expression clone and empty vector control clone.

2021-09-12 | GSE183897 | GEO

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data