RNA seq of MPNST tumour samples
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ABSTRACT:
PROVIDER: EGAS00001004528 | EGA |
REPOSITORIES: EGA
Similar Datasets
Project description:WES from 51 cases initially diagnosed as Malignant Nerve Sheath Tumours (MPNST) and RNA sequencing data from 10 MPNST cases. Find more information in article: Lyskjær et al, 2020, J Pathol, "H3K27me3 expression and methylation status in histological variants of malignant peripheral nerve sheath tumours".
| EGAD00001006253 | EGA
Project description:The diagnosis of Malignant peripheral nerve sheath tumors (MPNSTs) can be challenging, but is aided by their characteristic DNA methylation profile (DMP). An MPNST-like group, characterized by retained H3K27me3 expression, was recently recognized. To evaluate the diagnostic usefulness of DMP in pediatric/juvenile MPNSTs, we selected pediatric/juvenile malignancies from the Bambino Gesù Children's Hospital DMP database. DMP revealed unexpected molecular heterogeneity in histologically homogenous MPNSTs/Atypical neurofibromas, while samples with MPNST-like DMP manifested histological diversity. In conclusion, DMP is useful in diagnosing MPNST, discriminating morphologic mimics classified as MPNST in premolecular era, and investigating the MPNST-like ‘hybrid’ group in pediatrics.
2024-01-29 | GSE246644 | GEO
Project description:PRC2-isogenic human malignant peripheral nerve sheath tumor (MPNST) M3 cells were generated through CRISPR/Cas9-mediated knockout of the PRC2 core component, SUZ12. PRC2 loss leads to global loss of H3K27me3, which causes H3K27ac redistribution and also affect other histone modification, e.g., H3K36me2/3.
2022-08-17 | GSE202555 | GEO
Project description:Investigate the genomic landscape of MPNST tumours. Cases where a diagnosis of MPNST had been considered in the differential diagnosis with a variable degree of confidence was included. The diagnosis of MPNST was excluded in 12/51 (49 cases had WES data) of the sequenced tumours following review of the pathology, new IHC, molecular tests and clinical information. Article: Lyskjær et al, 2020, J Pathol, "H3K27me3 expression and methylation status in histological variants of malignant peripheral nerve sheath tumours".
| EGAS00001004527 | EGA
Project description:Malignant peripheral nerve sheath tumor (MPNST) is a rare sarcoma that lacks effective therapeutic strategies. By characterizing recurrent gene copy number aberrations, we gain insight into the most altered pathways with the purpose of scanning possible therapeutic targets. We conducted a microarray-based comparative genomic hybridization profiling of two cohorts of primary MPNST tissue samples including 25 patients treated at The University of Texas MD Anderson Cancer Center and 26 patients from Tianjin Cancer Hospital. All samples had at least 90% tumor content. Commercially available normal genomic DNAs were used as control.
2011-11-26 | E-GEOD-33881 | biostudies-arrayexpress
Project description:Malignant peripheral nerve sheath tumor (MPNST) is a rare sarcoma that lacks effective therapeutic strategies. By characterizing recurrent gene copy number aberrations, we gain insight into the most altered pathways with the purpose of scanning possible therapeutic targets.
2011-11-26 | GSE33881 | GEO
Project description:Plexiform neurofibromas (PN) are benign nerve sheath Schwann cell tumors, common in patients with neurofibromatosis type 1 (NF1), that are characterized by biallelic mutations in the NF1 tumor suppressor gene. Atypical neurofibromas (ANF) show additional frequent loss of CDKN2A/Ink4a/Arf and may be precursor lesions of aggressive malignant peripheral nerve sheath tumors (MPNST). We combined loss of Nf1 in developing
2020-12-23 | GSE148249 | GEO
Project description:NF1-associated malignant peripheral nerve sheath tumors (MPNST) are the major cause of mortality in neurofibromatosis. MPNST arise from benign peripheral nerve plexiform neurofibromas (PN) which originate in the embryonic neural crest cell lineage. Using reporter transgenes that label early neural crest lineage cells in multiple NF1 MPNST mouse models, we discovered and characterized a rare MPNST cell population with stem cell-like properties that is essential for tumor initiation and relapse. Following isolation of these cells we derive a cancer stem cell specific gene expression signature that includes consensus embryonic neural crest genes and we also identify Nestin as a novel marker for the MPNST cell of origin. Finally, application of the mouse cancer stem cell signature to single cell sequencing data from a rare NF1-associated MPNST precursors called atypical neurofibromatosis neoplasms of uncertain biologic potential (ANNUBP), identifies preformed unsupervised gene expression cell clusters. Enrichment of the cancer stem cell signature in cognate human tumors supports the generality and relevance of cancer stem cells to therapy development.
2021-04-07 | GSE165826 | GEO
Project description:We used microarrays to identify genes regulated during oncolytic HSV infection. Oncolytic herpes simplex viruses (oHSV) are promising anticancer therapeutics. We sought to identify alterations in gene expression during oHSV infection of human cancer cells. Human malignant peripheral nerve sheath tumor (MPNST) cells were infected with G207, an ICP34.5-deleted oHSV previously evaluated in clinical trials. G207-infected cells demonstrated massive degradation of cellular mRNAs, while a subset were upregulated. A gene signature of 21 oHSV-induced genes contained 7 genes known to be HSV-induced. Go ontology classification revealed that a majority of upregulated genes are involved in Jak/STAT signaling, transcriptional regulation, nucleic acid metabolism, protein synthesis and apoptosis. Ingenuity-defined functional networks highlighted nodes for AP-1 subunits and interferon signaling via STAT1, SOCS1, SOCS3 and RANTES. Upregulation of SOCS1 correlated with sensitivity of MPNST lines to G207 and depletion of SOCS1 reduced virus replication >1-log. The transcriptome of oHSV-induced genes may predict oncolytic efficacy and provides rationale for next generation oncolytics. Experiment Overall Design: 5 human MPNST cancer cell lines were infected with G207 or mock infected for 6 hours followed by RNA extraction and hybridization on Affymetrix microarrays.
2008-06-16 | E-GEOD-8717 | biostudies-arrayexpress
Project description:We devised a transgene that expresses in the neural crest lineage cells at embryonic stage day 13.5. The transgene has an inducible Cre cassette and was used to induce Trp53 and Nf1 gene recombination in the cells of dorsal root ganglia and boundary cap of nerve roots (DRG&BC) at E13.5. The malignant peripheral nerve sheath tumor (MPNST) allograft model was generated by sciatic nerve injection using the recombined E13.5 DRG&BC cells. The nuclear localized eGFP from the transgene was used to facilitate the florescence activated cell sorting (FACS) of GFP+ and GFP- tumor cells after removal of wildtype cells from the dissociated tumors, including immune cells, endothelia cells and blood cells. GFP+ and GFP- tumor cells were harvested from 5 different allograft MPNSTs. Total RNA were prepared from 10 samples were sequenced on Hiseq4000 sequencer. The data was to support the transgene-labeled cancer stem cell population in MPNST mouse models.
2021-01-31 | GSE152752 | GEO