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Combinatorial transcriptional profiling of mouse and human enteric neurons identifies shared and disparate subtypes in situ [Human Enteric Ganglia]

ABSTRACT: The data provided here were used to generate a comprehensive transcriptome atlas for the human myenteric plexus from healthy human adults

ORGANISM(S): Homo sapiens

PROVIDER: GSE153198 | GEO | 2020/10/12

REPOSITORIES: GEO

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Combinatorial Transcriptional Profiling of Mouse and Human Enteric Neurons Identifies Shared and Disparate Subtypes In Situ.

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Combinatorial transcriptional profiling of mouse and human enteric neurons identifies shared and disparate subtypes in situ

Project description:This SuperSeries is composed of the SubSeries listed below.

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Combinatorial transcriptional profiling of mouse and human enteric neurons identifies shared and disparate subtypes in situ [Mouse sn-RNA-Seq]

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Combinatorial transcriptional profiling of mouse and human enteric neurons identifies shared and disparate subtypes in situ [Mouse nuclei bulk RNA-Seq]

Project description:The data provided here were used to generate a comprehensive transcriptome atlas for the enteric neurons and glia of adult mice.

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Combinatorial transcriptional profiling of mouse and human enteric neurons identifies shared and disparate subtypes in situ [Human Enteric Ganglia]

Project description:Combinatorial transcriptional profiling of mouse and human enteric neurons identifies shared and disparate subtypes in situ [Human Enteric Ganglia]

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scRNA-sequencing reveals new enteric nervous system roles for GDNF, NRTN, and TBX3

Project description:Bowel function requires coordinated activity of many enteric neuron subtypes. Clear definition of subtype-specific gene expression may facilitate molecular diagnoses for bowel motility disorders. Using adult mouse colon RNAseq data from 635 myenteric neurons and 707 E17.5 neurons, we defined seven adult myenteric neuron subtypes, eight E17.5 neuron subtypes and hundreds of differentially-expressed genes. Manually dissected human colon myenteric plexus yielded data from 48 neurons, 3798 glia, 5568 smooth muscle, 377 interstitial cells, and 2153 macrophages. Immunohistochemistry demonstrated differential protein abundance for BNC2, PBX3, RBFOX1, TBX2, and TBX3 in enteric neuron subtypes. Conditional Tbx3 loss reduced NOS1-expressing myenteric neurons. Differential Gfra1 and Gfra2 expression coupled with calcium imaging revealed that GDNF and neurturin acutely and differentially regulate activity of ~50% of myenteric neurons with distinct effects on smooth muscle contractions. This insight into enteric nervous system biology provides a foundation for future studies of bowel motility disorders.

2021-01-01 | GSE156905 | GEO

Enteric nervous system: timecourse analysis of longitudinal muscle and myenteric plexus (LMMP) in mice

Project description:Samples of dissociated mouse small intestinal longitudinal muscle-myenteric plexus were prepared from post natal day 10 (P10), P20, and P60, each with two biological replicates. Samples were run through the 10x Chromium 3' Single Cell Gene Expression platform v3.1

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Neuronal Development And The Onset Of Electrical Activity In The Human Enteric Nervous System

Project description:Objective: To assess the development of neuronal subtypes and the emergence of evoked electrical activity within the developing human ENS. Methods: Human foetal gut samples were obtaining via the MRC-Wellcome Trust Human Developmental Biology Resource (UK). Characterisation of the developing ENS was performed by immunohistochemistry, calcium imaging, RNAseq and qRT-PCR Results: Human foetal colon samples displayed robust Tuj1 immunohistochemistry by embryonic week (EW) 12 with a dense neuronal network at the level of the myenteric plexus. At EW12 expression of excitatory neurotransmitter markers (VAChT and Sub P) was observed. By contrast, inhibitory neurotransmitter markers (nNOS and VIP) were not observed until EW14. Co-labeling with synaptic markers (SYN1/SNAP-25) demonstrated the development of synaptic contacts by EW12. However, electrical train stimulation (40V,2s,20Hz of 300?s electrical pulses) did not evoke activity within the myenteric plexus of EW12 foetal gut (n=0/3). Similarly, the majority of EW14 gut tissues assessed (80%), demonstrated no response to electrical stimulation (n=4/5). Interestingly, at EW16 Tuj1+ expression, in the myenteric plexus, was observed within discrete ganglia and was combined with the emergence of calcium transients (F/F0=1.273±0.024;n=3), upon electrical stimulation (n=3/3), which were abolished after the addition of 1uM TTX (n=3/3). RNAseq and qRT-PCR analysis between EW12-16 revealed increases in expression in genes involved in neurotransmission and action potential generation including SCN9A and KCNQ3. Conclusion: Here we demonstrate the temporal development of human enteric neuronal subtypes from EW12-14 and the subsequent emergence of coordinated electrical activity within the human foetal ENS at approximately EW16.

2019-02-20 | GSE111307 | GEO

Combinatorial transcriptional profiling of mouse and human enteric neurons identifies shared and disparate subtypes in situ

Project description:Combinatorial transcriptional profiling of mouse and human enteric neurons identifies shared and disparate subtypes in situ

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Testing the Ret and Sema3d genetic interaction in mouse enteric nervous system development

Project description:For most multigenic disorders, clinical manifestation (penetrance) and presentation (expressivity) are likely to be an outcome of genetic interaction between multiple susceptibility genes. Here, using gene knockouts in mice we evaluated genetic interaction between loss of Ret and loss of Sema3d, two Hirschsprung disease (HSCR) susceptibility genes. We intercrossed Ret and Sema3d double null heterozygotes to generate mice with the nine possible genotypes and assessed survival by counting various genotypes, myenteric plexus development by acetylcholinesterase (AchE) staining and embryonic day 12.5 (E12.5) gut transcriptome by RNA-sequencing. Survival rates of Ret wildtype, null heterozygote and null homozygote mice at E12.5, birth and weaning were not influenced by the genotypes at Sema3d locus and vice-versa. Loss of myenteric plexus was observed only in all Ret null homozygotes, irrespective of the genotypes at Sema3d locus, and Sema3d null heterozygote and homozygote mice had normal gut innervation. As compared to wildtype mice gut gene expression, loss of Ret in null homozygotes led to differential expression of ~300 genes, whereas loss of Sema3d in null homozygotes had no major consequence and there was no evidence supporting major interaction between the two genes influencing gut transcriptome. Overall, given the null alleles and phenotypic assays used, we did not find evidence for genetic interaction between Ret and Sema3d affecting survival, myenteric plexus formation or gut transcriptome.

2017-03-28 | GSE89627 | GEO

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