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RNAseq for MCL cells with ibrutinib treatment

ABSTRACT: In this study we compared the effects of BTK inhibitor on the gene expression, activation of cell signaling pathways, and functional properties of cells derived from a patient with Anaplastic Mantle Cell Lymphoma. we used RNAseq to map the genome-wide gene expression patterns in MCL cells in response to BTK inhibition

ORGANISM(S): Homo sapiens

PROVIDER: GSE126726 | GEO | 2021/02/26

REPOSITORIES: GEO

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Synergistic activity of BET protein antagonist-based combinations in Mantle Cell Lymphoma cells sensitive or resistant to ibrutinib

Project description:To determine the global transcriptome changes in mantle cell lymphoma cells following treatment with the BET bromodomain antagonist, JQ1 Mantle Cell Lymphoma (MCL) cells exhibit increased B cell receptor and NFkB activities. The BET protein BRD4 is essential for the transcriptional activity of NFkB. Here, we demonstrate that treatment with the BET protein bromodomain antagonist (BA) JQ1 attenuates MYC and CDK4/6, inhibits the nuclear RelA levels and the expression of NFÎºB target genes including Brutonâs Tyrosine Kinase (BTK) in MCL cells. While lowering the levels of the anti-apoptotic BCL2 family proteins, BA treatment induces the pro-apoptotic protein BIM and exerts dose-dependent lethality against cultured and primary MCL cells. Co-treatment with BA and the BTK inhibitor ibrutinib synergistically induces apoptosis of MCL cells. Compared to each agent alone, co-treatment with BA and ibrutinib markedly improved the median survival of mice engrafted with the MCL cells. BA treatment also induced apoptosis of the in vitro isolated, ibrutinib-resistant MCL cells which overexpress CDK6, BCL2, Bcl-xL, XIAP and AKT, but lack ibrutinib resistance-conferring BTK mutation. Co-treatment with BA and panobinostat (pan-histone deacetylase inhibitor) or palbociclib (CDK4/6 inhibitor) or ABT-199 (BCL2 antagonist) synergistically induced apoptosis of the ibrutinib-resistant MCL cells. These findings highlight and support further in vivo evaluation of the efficacy of the BA-based combinations with these agents against MCL, including ibrutinib-resistant MCL. MO2058 cells treated with vehicle, 250 nM or 1000 nM JQ1 for 8 hours. Samples were acquired and analyzed in duplicate.

2015-12-31 | E-GEOD-70651 | biostudies-arrayexpress

The BTK Inhibitor CC-292 shows activity in Mantle Cell Lymphoma and synergizes with Lenalidomide and NIK Inhibitors depending on NFκB mutational status

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2017-09-01 | GSE94328 | GEO

Synergistic activity of BET protein antagonist-based combinations in Mantle Cell Lymphoma cells sensitive or resistant to ibrutinib

Project description:To determine the global transcriptome changes in mantle cell lymphoma cells following treatment with the BET bromodomain antagonist, JQ1 Mantle Cell Lymphoma (MCL) cells exhibit increased B cell receptor and NFkB activities. The BET protein BRD4 is essential for the transcriptional activity of NFkB. Here, we demonstrate that treatment with the BET protein bromodomain antagonist (BA) JQ1 attenuates MYC and CDK4/6, inhibits the nuclear RelA levels and the expression of NFκB target genes including Bruton’s Tyrosine Kinase (BTK) in MCL cells. While lowering the levels of the anti-apoptotic BCL2 family proteins, BA treatment induces the pro-apoptotic protein BIM and exerts dose-dependent lethality against cultured and primary MCL cells. Co-treatment with BA and the BTK inhibitor ibrutinib synergistically induces apoptosis of MCL cells. Compared to each agent alone, co-treatment with BA and ibrutinib markedly improved the median survival of mice engrafted with the MCL cells. BA treatment also induced apoptosis of the in vitro isolated, ibrutinib-resistant MCL cells which overexpress CDK6, BCL2, Bcl-xL, XIAP and AKT, but lack ibrutinib resistance-conferring BTK mutation. Co-treatment with BA and panobinostat (pan-histone deacetylase inhibitor) or palbociclib (CDK4/6 inhibitor) or ABT-199 (BCL2 antagonist) synergistically induced apoptosis of the ibrutinib-resistant MCL cells. These findings highlight and support further in vivo evaluation of the efficacy of the BA-based combinations with these agents against MCL, including ibrutinib-resistant MCL.

2015-12-31 | GSE70651 | GEO

RNAseq for MCL cells with ibrutinib treatment

Project description:RNAseq for MCL cells with ibrutinib treatment

| PRJNA523124 | ENA

Targeting DNMT3A-mediated oxidative phosphorylation to overcome ibrutinib resistance in mantle cell lymphoma

Project description:The use of Bruton tyrosine kinase (BTK) inhibitors such as ibrutinib has achieved a remarkable clinical response in mantle cell lymphoma (MCL). Acquired drug resistance, however, is significant and impacts long-term survival of MCL patients. Here we demonstrate that DNMT3A is involved in ibrutinib resistance. We found that DNMT3A expression is upregulated upon ibrutinib treatment in ibrutinib-resistant MCL cells. Genetic and pharmacological analyses revealed that DNMT3A mediates ibrutinib resistance independent of its DNA-methylation function. Mechanistically, DNMT3A induces the expression of MYC target genes through interaction with the transcription factors MEF2B and MYC, thus mediating metabolic reprogramming to oxidative phosphorylation (OXPHOS). Targeting DNMT3A by a low dose of decitabine inhibits the growth of ibrutinib-resistant lymphoma cells both in vitro and in a patient-derived xenograft mouse model. These findings suggest that targeting DNMT3A-medited metabolic reprogramming to OXPHOS with decitabine provides a potential therapeutic strategy to overcome ibrutinib resistance in relapsed/refractory MCL.

2024-02-19 | GSE227976 | GEO

CD52 and OXPHOS - potential targets in ibrutinib treated mantle cell lymphoma

Project description:We performed a RNA-seq analysis of an ibrutinib-sensitive mantle cell lymphoma cell line treated with ibrutinib for up to 4 d to study transcriptomic adaptations to the BTK inhibitor in surviving cells.

2022-12-22 | GSE214725 | GEO

Bruton’s Tyrosine Kinase Degradation as a Therapeutic Strategy for Cancer

Project description:The covalent Bruton’s Tyrosine Kinase (BTK) inhibitor ibrutinib is highly efficacious against multiple B-cell malignancies. However, it also has off-target effects and multiple mechanisms of resistance, including the C481S mutation. We hypothesized that small molecule-induced BTK degradation might be able to overcome some of the limitations of traditional enzymatic inhibitors. Here, we demonstrate that BTK degradation results in more durable suppression of signaling and proliferation in cancer cells than BTK inhibition and that BTK degraders are able to efficiently degrade BTK C481S. Moreover, we generated DD-03-171, an optimized lead compound that exhibits enhanced anti-proliferative effects on mantle cell lymphoma (MCL) cells in vitro as well as efficacy in a patient-derived xenograft model of MCL. These data suggest that targeted BTK degradation is an effective therapeutic approach in treating MCL and overcoming ibrutinib resistance, thereby addressing a major unmet need in the treatment of MCL and other B-cell lymphomas.

2019-01-25 | PXD010568 | Pride

Cyclin D2 overexpression drives B1a-derived MCL-like lymphoma in mice

Project description:We provide RNA sequencing data for a Ccnd2/p53/Mb1Cre mouse model (Mb1Cre is active from pre-B cells onwards). This mouse model features Ccnd2 overexpression and p53 loss in B-cells, and develops tumors that resembles Mantle cell lymphoma (MCL). These Ccnd2/p53/Mb1Cre mice develop both non-MCL and MCL-like lymphomas and RNA samples from both groups were sequenced. Fresh lymphoma cells (5x10exp6) were frozen in 700 µl of QIAZOL and stored in -80°C. RNA was prepared using a miRNeasy mini kit (Qiagen).

2021-08-10 | GSE175568 | GEO

ABPP of Ibrutinib Resistance in B Cell Malignancies

Project description:Ibrutinib,a novel Bruton'styrosine kinase inhibitor, demonstrated high response rates in B-cell lymphomas but a growing number of ibrutinib treated patients relapse with resistance, fulminant progression and accelerated mortality. Using chemical proteomics and a high-throughput ex vivo assay in a reconstructed tumor microenvironment (TME), we determined the molecular basis for ibrutinib activity and mechanism of acquired ibrutinib resistance. Reciprocal activation of PI3K-AKT-mTOR and integrin β1 signaling were identified as a signaling hub of kinome for ibrutinib resistance, resulting in enforced TME-lymphoma interactions, promoting mantle cell lymphoma (MCL) growth and drug resistance. Combinatorial disruption of BCR signaling and ibrutinib resistance associated pathways led to release of MCL cells from TME, reversal of drugresistance and enhanced anti-MCL activity in murine and patient-derived xenograft models. This study integrated TME-mediated de-novo and acquired drug resistance mechanisms and provides the rationale for novel combination therapeutic strategy against MCL and other B cell malignancies.

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