Browse
Submit Data
Databases
API
Help

Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

8 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Exon-based transcription profiling of early molecular response in DLBCL/FL3B patients

ABSTRACT: We performed exon-based transcrition profiling with Affymetrix Human 1.0 ST Exon Array from pairwise tissue samples of 8 DLBCL/FL3B patients. Paired biopsies were taken at diagnosis and 1-2 days after the first cycle of chemoimmunotherapy (R-CHOP).

ORGANISM(S): Homo sapiens

SUBMITTER: Minna Taskinen

PROVIDER: E-MTAB-2471 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

ACCESS DATA

Json Xml

Similar Datasets

Development and application of a new immunophenotypic algorithm for molecular subtype classification of Diffuse Large B-Cell Lymphoma (DLBCL): Report from an International DLBCL Rituximab-CHOP Consortium Program Study

Project description:We studied 498 de-novo adult DLBCL cases, which had been diagnosed between January 2002 and October 2009, as part of the International DLBCL Rituximab-CHOP Consortium Program Study We perform global gene expression profiling from formalin fixed paraffin embedded 498 DLBCL tissues RNA by SPIA mediated microarray detection and identified the distinct subgroups of the disease within DLBCL, known as germinal-center-B-cell-like (GCB), activated B-cell-like (ABC), and unclassified DLBCL (UC). RNA of 498 FFPET DLBCL patient samples were extracted, amplified using a novel RNA amplicfication method, Single Primer Isothermal Amplification (SPIA, NuGen Inc.), and hybridized to Affymetrix HG-U133 Plus 2.0 GeneChips. This dataset is the collaboration between The University of Texas at MD Anderson Cancer Center and Roche Molecular Systems, Inc.

2012-07-31 | E-GEOD-31312 | biostudies-arrayexpress

Exon-based transcriptome profiling of high-risk DLBCL patients less than 65 years old

Project description:The main purpose of the study was to identify biological prognostic factors that could be used to define poor risk diffuse large B-cell lymphoma (DLBCL) patients. We used exon array profiling to screen differentially expressed genes and splicing variants between clinically high risk patients, who have relapsed or remained in remission in response to dose dense chemoimmunotherapy. Study population consisted of 43 high-risk DLBCL/FL grade 3 patients less than 65 years old. The patients were treated in the Nordic phase II protocol with six courses of R-CHOEP14 followed by systemic central nervous system prophylaxis with one course of high dose methotrexate and one course of high dose cytarabine.

2012-03-30 | E-MEXP-3488 | biostudies-arrayexpress

Development and blind clinical validation of a microRNA based predictor of response to treatment with R-CHOEP in DLBCL

Project description:microRNAs er are group of short noncoding RNAs that regulate gene expression at the posttranslational level. It has been shown that mirs are independent predictios of outcome in patients with diffuse large b cell lymphoma treated with r-chop. Outcome in patients with dlbcl lymphoma treated with r-chop. Based on the measured GI50 in 60 human cell lines. 116 DLBCL samples

2015-02-20 | E-GEOD-40239 | biostudies-arrayexpress

A multiomics approach in refractory DLBCL

Project description:Diffuse large B-cell lymphoma (DLBCL) is the most frequent entity among non-Hodgkin lymphoma (NHL). It is a clinically and biologically heterogeneous disease regarding treatment response and long-term outcome. The anthracycline-based regimen R-CHOP is still considered as the standard of care for first-line treatment allowing achieving a complete response for approximately 60% of the patients. The prognosis of patients with primary refractory or relapsed (R/R) disease is particularly poor with a median overall survival below one year. Only a fraction of R/R patients can be cured with salvage therapies due to the acquisition of chemoresistance. We conducted a large-scale and deep proteomic investigation of the proteome profiles of R/R DLBCL patients compared to chemosensitive patients in order to identify new potential biomarkers related to resistance to treatment and to better understand the biological mechanisms underlying chemoresistance.

2019-03-04 | PXD009089 | Pride

2012-08-01 | GSE31312 | GEO

microRNA array on plasma from two diffuse large B-cell lymphoma patients and one healthy donor

Project description:The aim of this experiment was to analyse the level of microRNAs circulating in plasma from two DLBCL patients during their treatment and one healthy donor with no history of cancer. The two DLBCL patients were selected based on their highly different response to first line chemotherapy (R-CHOP). One of them obtained a complete remission after first line, while the other presented a refractory disease.

2018-06-20 | E-MTAB-6063 | biostudies-arrayexpress

Development and blind clinical validation of a microRNA based predictor of response to treatment with R-CHOEP in DLBCL

2015-02-20 | GSE40239 | GEO

(1) Effect of KLHL6 loss on the transcriptome in DLBCL upon NOTCH ligand stimulation. (2) Effect of KLHL6 and NOTCH2 loss on the transcriptome in DLBCL. (3) Effect of DLBCL-associated NOTCH2 mutants on the transcriptome in DLBCL.

Project description:(1) Assessment of the transcriptional changes regulated by KLHL6 upon NOTCH ligand stimulation. Bulk RNA-seq in KLHL6 WT or KO U2932 cells was performed upon incubation with stromal OP9 cells stably expressing NOTCH ligand DLL1. (2) Assessment of the transcriptional changes regulated by the KLHL6-NOTCH2 axis in a xenotransplant model of DLBCL. Bulk RNA-seq was performed in in KLHL6+/+NOTCH2+/+(WT), KLHL6-/-NOTCH2+/+(K6-KO), KLHL6+/+NOTCH2-/-(N2-KO), KLHL6-/-NOTCH2-/-(DKO) U2932 cells xenotranplanted in NSG mice trated with CHOP. (3) Assessment of the transcriptional changes regulated by the DLBCL-associated NOTCH2 mutants. Bulk RNA-seq was performed inU2932 cells stably expressing NOTCH2(WT), NOTCH2(S2156A), NOTCH2(R2400*) or NOTCH2(Q2140*).

2024-05-03 | GSE231624 | GEO

Frequent mutations on amino-terminal BCL7A domain compromise its tumor suppressor role in DLBCL.

Project description:Mutations in genes encoding the various subunits of the SWI/SNF chromatin remodeling complex are frequently observed in different human cancers. In diffuse large B-cell lymphoma (DLBCL), genetic changes in BCL7A, a subunit of the SWI/SNF complex, have been recently reported but the functional role of such genetic changes remains unknown. BCL7A mutations concentrate at the first exon and the most frequently mutated hotspot is the splice donor site of the first intron. By using in vitro and in vivo analyses, we show that restoration of BCL7A drives a tumor suppressor-like phenotype. Further, we found that splice site mutations block the tumor suppressor phenotype and prevent BCL7A from binding to the SWI/SNF complex. Finally, we identified that the SWI/SNF complex accumulates mutations in a third of DLBCL tumors, especially in the GCB subtype. These discoveries highlight the tumor suppressor role of BCL7A mutations in DLBCL, and suggest that the SWI/SNF complex is involved in DLBCL pathogenesis.

2020-10-21 | PXD014795 | Pride

Expression data from a Charcot-Marie-Tooth 1B neuropathy mouse model

Project description:We have generated mouse models of real CMT1B mutations in the gene encoding for myelin protein zero (P0). One of these mutants, P0S63del is retained in the ER where it elicits an unfolded protein response (UPR). Genetic ablation of the UPR factor CHOP restores the motor capacity in S63del mice. We used microarray to decipher the molecular mechanism undelying the P0S63del neuropathy and the rescue in S63del/Chop null nerves. Sciatic nerves were dissected from WT, S63del, Chop null and S63del/Chop null mice at three different time points: (i) postnatal day 5 (P5) when myelination has just started and only the primary effects of the presence of the mutant protein should be detected; (ii) P28, around the peak of myelination, when all the downstream targets of CHOP should be activated; and (iii) 4 months, to check for secondary effects of the disease and because this was the time-point when the motor and morphological rescue due to the ablation of CHOP were clearly detectable.

2013-05-01 | E-GEOD-40610 | biostudies-arrayexpress

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

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