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Comparative analysis of mRNA expression in untreated lymph node stroma cells and upon treatment with exosomes derived from ASMLwt, ASML cd44v knockdown cells.

ABSTRACT: Comparison of total RNA isolated from ASML and ASML CD44v knockdown exosomes; and RNA from untreated B12 lymph node stroma cells vs. cells treated for 24h with ASML wt or ASML CD44v kd exosomes

ORGANISM(S): Rattus norvegicus

PROVIDER: GSE34737 | GEO | 2011/12/28

SECONDARY ACCESSION(S): PRJNA156219

REPOSITORIES: GEO

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Comparative analysis of mRNA expression in untreated lymph node stroma cells and upon treatment with exosomes derived from ASMLwt, ASML cd44v knockdown cells.

Project description:Comparison of total RNA isolated from ASML and ASML CD44v knockdown exosomes; and RNA from untreated B12 lymph node stroma cells vs. cells treated for 24h with ASML wt or ASML CD44v kd exosomes The array consists of 12 samples. Samples 1-3 consist of total RNA from exosomes derived from ASML cells; samples 4-6 : total RNA from exosomes derived from ASML CD44v knockdown cell; samples 7,8 are total RNA from untreated B12 lymph node stroma cells; samples 9,10 are RNA from B12 cells treated for 24h with ASML wt exosomes and samples 11, 12 are RNA from B12 cells treated with ASML CD44v kd exosomes

2011-12-28 | E-GEOD-34737 | biostudies-arrayexpress

Exosomal tumor miRNA modulates premetastatic organ cells

Project description:This SuperSeries is composed of the following subset Series: GSE34737: Comparative analysis of mRNA expression in untreated lymph node stroma cells and upon treatment with exosomes derived from ASMLwt, ASML cd44v knockdown cells. GSE34738: Characterization of exosomes from highly metastatic pancreatic adenocarcinoma line: ASML and a CD44v kd of ASML based on their miRNA content Refer to individual Series

2011-12-28 | E-GEOD-34739 | biostudies-arrayexpress

Characterization of exosomes from highly metastatic pancreatic adenocarcinoma line: ASML and a CD44v kd of ASML based on their miRNA content

Project description:Comparing the miRNA profile of exosomes from ASML vs ASML CD44v kd pancreatic adenocarcinoma line revealed that the expression level of 33 from the 40 most abundant miRNA differed significantly between ASMLwt and ASML-CD44vkd exosomes In this study tumor cell exosomes, deemed important for intercellular communication were analysed for their miRNA content. Exosomes from a highly metastatic pancreatic adenocarcinoma cell line, ASML and from a CD44v kd of ASML were used for RNA preparation using Trizol reagent, and the total RNA was sent to Genomics core facility,EMBL, Heidelberg for miRCURY LNA microRNA Array, v.11.0 - hsa, mmu & rno

2011-12-28 | E-GEOD-34738 | biostudies-arrayexpress

Characterization of exosomes from highly metastatic pancreatic adenocarcinoma line: ASML and a CD44v kd of ASML based on their miRNA content

2011-12-28 | GSE34738 | GEO

Differential expression of miRNAs in plasma exosomes between ESCC patients with lymph node metastasis(LNM+) and those without lymph node metastasis(LNM-)

Project description:To identify the candidate exosomal miRNAs involved in ESCC metastasis, we conducted small RNA sequencing to determine the miRNA expression profiles of plasma exosomes from 5 LNM+ and 5 LNM- ESCC patients

2022-10-02 | GSE214259 | GEO

Local Modulation of Lymph Node Stroma by Sensory Neurons

Project description:Local Modulation of Lymph Node Stroma by Sensory Neurons

| PRJNA580474 | ENA

Local Modulation of Lymph Node Stroma by Sensory Neurons

Project description:Immune responses within barrier tissues are regulated, in part, by nociceptors, specialized peripheral sensory neurons that detect noxious stimuli. Previous work has shown that nociceptor ablation not only alters local responses at peripheral sites of immune challenge, but also within draining lymph nodes (LNs). The mechanism and significance of nociceptor-dependent modulation of LN homeostasis are unknown. Indeed, although sympathetic innervation of LNs is well documented, it has been unclear whether the LN parenchyma itself is innervated by sensory neurons. Here, using a combination of high-resolution imaging, retrograde viral tracing, optogenetics, and single-cell transcriptomics (scRNA-seq), we describe a sensory neuro-immune circuit that is preferentially located in the outermost cortex of skin-draining LNs. Transcriptomic profiling revealed that sensory neurons that innervate LNs are composed of at least four discrete subsets with a predominance of peptidergic nociceptors, an innervation pattern that is distinct from that in the surrounding skin. To identify potential LN-resident communication partners for LN-innervating sensory neurons, we employed scRNA-seq to generate an atlas of all murine LN cells and, based on receptor-ligand expression patterns, nominated candidate target populations among stromal and immune cells. We experimentally validated these inferred connections by comparing scRNA-seq signatures before and after selective optogenetic stimulation of LN-innervating axons. Acute neuronal activation triggered rapid transcriptional changes preferentially in endothelium and other nodal stroma cells, as well as in several innate leukocyte populations. Thus, LNs are monitored by a unique population of sensory neurons that possess profound immunomodulatory potential.

2019-10-31 | GSE139600 | GEO

Local Modulation of Lymph Node Stroma by Sensory Neurons II

Project description:Local Modulation of Lymph Node Stroma by Sensory Neurons II

| PRJNA586848 | ENA

Transcriptional profiling of Ewing's sarcoma derived exosomes

Project description:Exosomes are small RNA and protein containing vesicles that can mediate hetero- and homotypic intercellular communication between normal and malignant cells. Especially, tumor-derived exosomes are believed to mediate reprogramming of the tumor-associated stroma to favor tumor growth and metastasis. In this study we isolated exosomes from three different Ewing’s sarcoma (ES) cell lines by ultracentrifugation. Microarray analysis of ES-derived exosomes and their parental cells was performed to gain insight into the spectrum of transcripts they contain and the functions in which these transcripts might be involved in. In total we analyzed six different samples consisting of three pairs of exosomal and cellular RNA of different Ewing's sarcoma cell lines.

2013-05-01 | E-GEOD-42282 | biostudies-arrayexpress

Analysis of exosome RNA from co-culture of cancer cell and stroma cell

Project description:How stroma communicates with cancer to influence treatment response is poorly understood. We show that stromal fibroblasts protect breast cancer (BrCa) against radiation and chemotherapy through an exosome-mediated anti-viral pathway and NOTCH3. Stroma increases RAB27B and transfers exosomes to BrCa. RNA within exosomes, comprised largely of non-coding transcripts and transposable elements, stimulates the pattern recognition receptor RIG-I through a 5M-bM-^@M-^Y-triphosphate motif to activate STAT1. BrCa NOTCH3 is activated in parallel by stromal JAG1 and cooperates with STAT1 to enhance transcriptional responses of NOTCH target genes and to expand therapy resistant tumor-initiating cells. Computational modeling using primary human and mouse BrCa supports the interaction of anti-viral/NOTCH3 pathways in controlling NOTCH target genes and treatment resistance, particularly in basal subtype tumors. Gamma secretase inhibitors reverse stromal protection and abrogate radiation resistance in vivo. Thus, stroma orchestrates an intricate cross-talk with BrCa by utilizing exosomes to coax anti-viral signaling that expands therapy resistant cells through druggable pathways. RNA profile of ceullar RNA and exosome of co-culture of breast caner cell line 1833 and stroma cell line MRC5.

2014-10-24 | E-GEOD-60997 | biostudies-arrayexpress

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