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SRP104995
Mus musculus
6 Downloadable Samples
Illumina HiSeq 2500
Description
Germinal center (CD19+Fas+GL7+) and naive (CD19+Fas-GL7-) B cells were sorted from Peyer''s patches of littermate 12 weeks old WT C57BL/6 mice. Three biological replicates were analyzed, each composed of a pool of 5 female mice. RNA was purified from pellets of 2-2.5x10^4 cells and sequencing libraries were prepared from 100ng of total RNA per replicate. Overall design: Transcriptional profiling of germinal center and naive B cells from Peyer's patches of WT mice.
Publication Title
A broad atlas of somatic hypermutation allows prediction of activation-induced deaminase targets.
Sample Metadata Fields
Sex, Age, Specimen part, Cell line, Subject
View Samples- Homo sapiens
- 12 Downloadable Samples
- Illumina HiSeq 2500
Description
Our studies identify the role of mIR-28 in germinal center response and its therapeutic potential for the treatment of non-Hodgkin lymphomas Overall design: The effect of miR-28 expression in the transcriptome was analyzed in Ramos Burkitt B cells by RNASeq.
Publication Title
miR-28 regulates the germinal center reaction and blocks tumor growth in preclinical models of non-Hodgkin lymphoma.
Sample Metadata Fields
Treatment, Subject
View Samples- Mus musculus
- 8 Downloadable Samples
- Illumina Genome Analyzer IIx
Description
microRNAs (miRNAs) regulate virtually all biological processes, but little is known of their role in germinal center (GC) B cells. While the GC reaction is crucial to ensure a competent immune response, GC B cells are also the origin of most human lymphomas. Here we report that miR-217 is specifically upregulated in GC B cells. Gain- and loss-of-function mouse models reveal that miR-217 functions as a positive modulator of the GC response through the regulation of a DNA repair gene network. Moreover, we show that miR-217 overexpression promotes mature B cell lymphomagenesis. Therefore miR-217 provides a novel molecular link between the normal GC response and B cell transformation Overall design: 4 samples were analyzed by RNAseq: 1) naïve (CD19+Fas-GL7-) B cells from miR-217TG, 2) GC (CD19+Fas+GL7+) B cells from miR-217TG, 3) naïve (CD19+Fas-GL7-) B cells from littermate controls and 4) GC (CD19+Fas+GL7+) B cells from littermate controls. Samples were isolated by cell sorting from pooled Peyer’s patches (4-6 animals per genotype). Two independent experiments were performed.
Publication Title
miR-217 is an oncogene that enhances the germinal center reaction.
Sample Metadata Fields
Specimen part, Subject
View Samples- Homo sapiens
- 2 Downloadable Samples
Affymetrix Human Gene 2.0 ST Array (hugene20st)
Description
Cutaneous squamous cell carcinoma (cSCC) is the second most common malignancy in humans and approximately 5% metastasize, usually to regional lymph nodes. Epigenetic regulation of gene expression may allow tumoral cells to acquire new functions in order to escape from the primary tumor. The aim of this study was to investigate the expression and function of proteins of the Polycomb family of epigenetic regulators in the metastatic process of cSCC. A higher expression of RING1B and EZH2 was detected by immunohistochemistry in a series of primary cSCC tumors that metastasized (MSCC) when compared to non metastasizing cSCC (non MSCC). Stable downregulation of RING1B and EZH2 in cSCC cells results in enhanced expression of inflammatory cytokines and activation of the NFB signaling pathway. Accordingly, non MSCC display higher levels of membranous pS176 IKK and their stroma is enriched in neutrophils and eosinophils when compared to MSCC. In vitro, hematopoietic cells exhibit a substantial migratory response to supernatants from Polycomb depleted cSCC cells. Altogether these data indicate that RING1B and EZH2 repress the innate inflammatory cSCC function and impair tumor immunosurveillance and suggest that patients with high risk cSCC could benefit from clinical therapies addressed to harness the immune response.
Publication Title
The Polycomb proteins RING1B and EZH2 repress the tumoral pro-inflammatory function in metastasizing primary cutaneous squamous cell carcinoma.
Sample Metadata Fields
Specimen part, Cell line
View Samples