Browse
Submit Data
Databases
API
Help

Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

42 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Transcriptional profiling of cutaneous Mrgprd free nerve endings and C-LTMRs

ABSTRACT: Cutaneous C-unmyelinated free nerve endings and hair follicles-innervating C-LTMRs convey two opposite aspects of touch sensation: a sensation of pain and a sensation of pleasant touch. The molecular mechanisms underlying these diametrically opposite functions are unknown. Here we used a mouse model that genetically marks C-LTMRs and the free nerve endings MRGPRD+ neurons in combination with fluorescent cell surface labeling, flow cytometry and RNA deep-sequencing technology. Cluster analysis of the RNA-Seq profiles of the purified neuronal subsets revealed 156 and 184 genes differentially expressed in MRGPRD-expressing neurons and C-LTMRs, respectively. 48 MRGPD- and 67 C-LTMRs-enriched genes were validated using a triple staining experiment approach and the Cav3.3 channel, found to be exclusively expressed in C-LTMRs, was validated using electrophysiology. Furthermore, our study greatly expands the molecular characterization of C-LTMRs and suggests that this particular population of neurons shares common transcriptional signatures with A and A low threshold mechanoreceptors. RNA profiles of FACS-sorted subsets of sensory neurons, namely Mrgprd+ neurons (DP, double-positive=IB4+GINIP+), C-LTMRs (IB4-GINIP+) and remaining cells (DN, double-negative=IB4-GINIP-) were generated by deep sequencing in duplicate using Illumina HiSeq 2000.

ORGANISM(S): Mus musculus

SUBMITTER: Ana Reynders

PROVIDER: E-GEOD-64091 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

ACCESS DATA

Json Xml

Similar Datasets

Transcription profiling of mouse dorsal root ganglion

Project description:The molecular identity of touch sensation is still largely unknown. We choose an extrem and very specific example, touch sensation of pennis glan, to study this problem. It's known from previous retro-grade labeling result that only one DRG in rat innervate the pennis glan, which makes it idea for microarry analysis. To clone the mechanosensory receptor specifically or highly expressed in the primary sensory neurons innervating pennis glan. There is a specific mechanosensory receptor in the primary sensory neurons innervating pennis glan. 1. Retrograde labeling the innervating nerve by DiI; 2. Dissect DRGs, dissociate neurons and pick up the fluorescent cells. 3. Pool around 20 positive cells and 50 control cells (big diameter neuron and small to medium diameter neuron respectively), purify total RNA. 4. Two rounds of amplification; 5. Affymetrix analysis

2008-06-11 | E-GEOD-11207 | biostudies-arrayexpress

Transcriptional profiling of cutaneous Mrgprd free nerve endings and C-LTMRs

Project description:Cutaneous C-unmyelinated free nerve endings and hair follicles-innervating C-LTMRs convey two opposite aspects of touch sensation: a sensation of pain and a sensation of pleasant touch. The molecular mechanisms underlying these diametrically opposite functions are unknown. Here we used a mouse model that genetically marks C-LTMRs and the free nerve endings MRGPRD+ neurons in combination with fluorescent cell surface labeling, flow cytometry and RNA deep-sequencing technology. Cluster analysis of the RNA-Seq profiles of the purified neuronal subsets revealed 156 and 184 genes differentially expressed in MRGPRD-expressing neurons and C-LTMRs, respectively. 48 MRGPD- and 67 C-LTMRs-enriched genes were validated using a triple staining experiment approach and the Cav3.3 channel, found to be exclusively expressed in C-LTMRs, was validated using electrophysiology. Furthermore, our study greatly expands the molecular characterization of C-LTMRs and suggests that this particular population of neurons shares common transcriptional signatures with A and A low threshold mechanoreceptors.

2015-02-01 | GSE64091 | GEO

Dorsal root ganglion (katz-affy-mouse-210210)

Project description:The molecular identity of touch sensation is still largely unknown. We choose an extrem and very specific example, touch sensation of pennis glan, to study this problem. It's known from previous retro-grade labeling result that only one DRG in rat innervate the pennis glan, which makes it idea for microarry analysis. To clone the mechanosensory receptor specifically or highly expressed in the primary sensory neurons innervating pennis glan. There is a specific mechanosensory receptor in the primary sensory neurons innervating pennis glan. 1. Retrograde labeling the innervating nerve by DiI 2. Dissect DRGs, dissociate neurons and pick up the fluorescent cells. 3. Pool around 20 positive cells and 50 control cells (big diameter neuron and small to medium diameter neuron respectively), purify total RNA. 4. Two rounds of amplification 5. Affymetrix analysis Keywords: dorsal root ganglion, touch sensatiion

2008-04-19 | GSE11207 | GEO

Histone H3K4 trimethylation in rat peripheral nerve

Project description:ChIP-seq of H3K4me3 in rat peripheral nerve was used to identify transcription start sites associated with Schwann cell-expressed genes. The analysis was performed in injured and control nerve to identify injury-responsive changes in Schwann cells. H3K4me3 ChIP samples were prepared from rat sciatic nerve at 1 day post-transection using both the distal stump of the injured nerve and the contralateral (sham) nerve.

2016-08-01 | E-GEOD-84272 | biostudies-arrayexpress

H3K27me3 ChIP-seq in rat peripheral nerve

Project description:ChIP-seq of H3K27me3 in rat peripheral nerve was used to identify sites of polycomb repression associated with genes in Schwann cells, which constitute the majority of cells in peripheral nerve. H3K27me3 ChIP samples were prepared from rat sciatic nerve and then sequenced. Inputs for these ChIP samples have previously been submitted as samples GSM1541282 and GSM1541283 in Series GSE63103

2016-08-01 | E-GEOD-84265 | biostudies-arrayexpress

Modeling the early phenotype at the neuromuscular junction of spinal muscular atrophy using patient-derived iPSCs (RNA-Seq)

Project description:Spinal muscular atrophy (SMA) is a neuromuscular disorder caused by mutations of the survival of motor neuron 1 (SMN1) gene. In the pathogenesis of SMA, pathological changes of the neuromuscular junction (NMJ) precede the motor neuronal loss. Therefore, it is critical to evaluate the NMJ formed by SMA patientsM-bM-^@M-^Y motor neurons (MNs), and to identify drugs that can restore the normal condition. We generated NMJ-like structures using motor neurons (MNs) derived from SMA patient-specific induced pluripotent stem cells (iPSCs), and found that the clustering of the acetylcholine receptor (AChR) is significantly impaired. Valproic acid and antisense oligonucleotide treatment ameliorated the AChR clustering defects, leading to an increase in the level of full-length SMN transcripts. Thus, the current in vitro model of AChR clustering using SMA patient-derived iPSCs is useful to dissect the pathophysiological mechanisms underlying the development of SMA, and to evaluate the efficacy of new therapeutic approaches.M-bM-^@M-^C to evaluate the effects of VPA on the expression profiles of the MNs

2015-02-03 | E-GEOD-65508 | biostudies-arrayexpress

Integrated analysis of MLL-AF9 AML patients and model leukemias highlights RET and other novel therapeutic targets [RNA-Seq_AML]

Project description:Next generation DNA sequencing of acute myeloid leukemia (AML) patient samples has revealed novel recurrent mutations while at the same time highlighting the genetic heterogeneity of the disease. These observations suggest that an extraordinarily large number of combinations of mutations can contribute to leukemogenesis. In order to address the question of the contribution of patient genetic background to AML we have developed a model system to generate multiple human leukemias in a single donorâs genetic background. Stepwise RNA-seq data from this model shows that in the context of AML driven by the MLL-AF9 (MA9) oncogene, the genetic background of the donor does not have a detectable effect. Comparison of these model leukemias from multiple single donors to AML patient samples containing MA9 translocations revealed conserved gene expression patterns not previously highlighted in this genetic sub-type. We further demonstrate that the expression of one of these genes, RET, is essential both in vivo and in vitro growth of MA9 AMLs . Transcriptome of several AML cell lines

2017-05-02 | E-GEOD-71686 | biostudies-arrayexpress

Leucegene: AML sequencing (part 2)

Project description:RNA sequencing of human leukemia The goals of this project are to obtain a comprehensive study of mutations and gene expression in human acute myeloid leukemia (AML). Methods: AML cells were thawed. DNA and RNA (polyA) was extracted and sequences were obtained with an illumina HiSeq 2000 sequencer. Results are pending.

2014-02-05 | E-GEOD-52656 | biostudies-arrayexpress

Integrated analysis of MLL-AF9 AML patients and model leukemias highlights RET and other novel therapeutic targets [RNA-Seq_normal]

2017-05-02 | E-GEOD-71689 | biostudies-arrayexpress

Integrated analysis of MLL-AF9 AML patients and model leukemias highlights RET and other novel therapeutic targets (Leukemia Cell Bank)

2017-05-02 | E-GEOD-72061 | biostudies-arrayexpress