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JAK/STAT blockade in cHL

ABSTRACT: Here we investigated the effects of JAK/STAT pharmacological inhibition on cHL cell models using ruxolitinib, a JAK 1/2 inhibitor. We use five classical Hodgkin lymphoma cell lines: L428, L1236, L540, KMH2, L591

ORGANISM(S): Homo sapiens

PROVIDER: GSE185818 | GEO | 2021/10/15

REPOSITORIES: GEO

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JAK/STAT blockade in cHL

Project description:JAK/STAT blockade in cHL

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Transcription profiling of human HL cell line associated gene expression changes compared with CD10+ GC B cells

Project description:Gene expression was compared between four B-cell derived HL cell lines (L428, L1236, L591, KMH2) and GC B cells from three different patients. Experiment Overall Design: Gene expression was compared between four B-cell derived HL cell lines (L428, L1236, L591, KMH2) and GC B cells from three different patients.

2008-10-26 | E-GEOD-10831 | biostudies-arrayexpress

Analyzing primary Hodgkin and Reed-Sternberg cells to capture the molecular and cellular pathogenesis of classical Hodgkin lymphoma

Project description:The pathogenesis of classical Hodgkin lymphoma (cHL), the most common lymphoma in the young, is still enigmatic, largely because its Hodgkin and Reed-Sternberg (HRS) tumor cells are rare in the involved lymph node and therefore difficult to analyze. Here, by overcoming this technical challenge and performing for the first time a genome-wide transcriptional analysis of microdissected HRS cells in comparison to other B-cell lymphomas, cHL lines and normal B-cell subsets, we show that they differ extensively from the usually studied cHL cell lines, that the lost B-cell identity of cHLs is not linked to the acquisition of a plasma cell-like gene expression program, and that Epstein-Barr virus infection of HRS cells has a minor transcriptional influence on the established cHL clone. Moreover, although cHL appears a distinct lymphoma entity overall, HRS cells of its histological subtypes diverged in their similarity to other related lymphomas. Unexpectedly, we identified two molecular subgroups of cHL associated to differential strengths of the transcription factor activity of the NOTCH1, MYC and IRF4 proto-oncogenes. Finally, HRS cells display deregulated expression of several genes potentially highly relevant to lymphoma pathogenesis, including silencing of the apoptosis-inducer BIK and of INPP5D, an inhibitor of the PI3K-driven oncogenic pathway. The present study complements the GSE12453 and GSE14879 records by adding the following 10 samples: 5 primary tumor samples and 5 cell line samples. The 5 primary tumor samples represent 1000-2000 neoplastic cells microdissected from frozen biopsies of 5 cases of primary mediastinal B-cell lymphoma (PMBL). The 5 cell line samples represent 500-1000 living neoplastic cells isolated by fluorescence-activated cell sorting from growing cultures of the classical Hodgkin lymphoma (cHL) cell lines L1236, L428, KMH2 and HDLM2 and the lymphocyte-predominant Hodgkin lymphoma (lpHL) cell line DEV.

2012-09-17 | E-GEOD-40160 | biostudies-arrayexpress

HL cell line associated gene expression changes compared with CD10+ GC B cells

Project description:Gene expression was compared between four B-cell derived HL cell lines (L428, L1236, L591, KMH2) and GC B cells from three different patients. Keywords: Cell type comparison

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Expression data of cHL cell lines after FOXO1 activation

2012-06-01 | GSE29545 | GEO

Gene expression profile of classical Hodgkin lymphoma according to Epstein-Barr infection status

Project description:Transcriptional profiling of Human Hodkin Lymphoma lineages infected or not by Epstein Baar Virus (EBV). We compared EBV infected lineage L591 and not EBV infected lineages L428, L1236 and KMH2. Goal was to determine presence versus absence of EBV infection on global gene expression of Hodkin Lymphoma cell lines. EBV infected Hodkin Lymphoma lineage L591 vs 3 Hodkin Lymphoma lineages not EBV infected L428, L1236 and KMH2. Dye Swap and direct comparisom between L591 (EBV infected) and the three others not infected cell lines.

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2012-05-31 | E-GEOD-29545 | biostudies-arrayexpress

Small and big Hodgkin-Reed-Sternberg cells of Hodgkin lymphoma cell lines L-428 and L-1236 lack consistent differences in gene expression profiles and are capable to reconstitute each other

Project description:Gene expression analysis was performed from microdissected small and big HRS cells, which were taken from smears of the Hodgkin cell lines L1236 and L428

2017-06-09 | GSE86477 | GEO

Gene expression profile of classical Hodgkin lymphoma according to Epstein-Barr infection status

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Expression data of cHL cell lines after KLF4 activation

Project description:Characteristic extinguishing of B-cell phenotype in cHL is believed to be a result of transcription factor network deregulation due to the overexpression of repressor proteins ID2 and ABF-1. KLF4 is a versatile transcription factor, participating in regulation of differentiation processes in various tissues. Epigenetic silencing of KLF4 in cHL hints that KLF4 is involved in the complex mechanism of extinguishing of B-cell phenotype in cHL. To clarify this issue we investigated transcriptome changes, induced by KLF4 activation in two cHL cell lines KM-H2 and L428.

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