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Transcriptoma comparison of mantle cell lymphoma of c-myc-3'RR/Cdk4R24C mice and c-myc-3'RR/p53+/- mice

ABSTRACT: Mantle cell lymphoma (MCL) is a B cell malignancy characterized by a monoclonal proliferation of lymphocytes with co-expression of CD5, CD43 but not CD23. We have developed two murine models of MCL-like lymphoma. Breeding Cdk4R24C mice (a knock-in strain that express a Cdk4 protein resistant to inhibition by p16INK4a and other INK4 family members) with c-myc-3’RR transgenic mice (prone to develop aggressive Burkitt lymphoma-like lymphoma) leads in c-myc/Cdk4R24C mice to development of clonal blastoid MCL-like lymphoma. Breeding p53+/- mice with c-myc-3’RR transgenic mice lead to the development of several mature B cell lymphomas including MCL. In this study we compare MCL transcriptomas of c-myc-3'RR/Cdk4R24C mice and c-myc-3'RR/p53+/- mice.

ORGANISM(S): Mus musculus

PROVIDER: GSE36808 | GEO | 2013/01/10

SECONDARY ACCESSION(S): PRJNA163637

REPOSITORIES: GEO

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Transcriptoma comparison of mantle cell lymphoma of c-myc-3'RR/Cdk4R24C mice and c-myc-3'RR/p53+/- mice

Project description:Mantle cell lymphoma (MCL) is a B cell malignancy characterized by a monoclonal proliferation of lymphocytes with co-expression of CD5, CD43 but not CD23. We have developed two murine models of MCL-like lymphoma. Breeding Cdk4R24C mice (a knock-in strain that express a Cdk4 protein resistant to inhibition by p16INK4a and other INK4 family members) with c-myc-3’RR transgenic mice (prone to develop aggressive Burkitt lymphoma-like lymphoma) leads in c-myc/Cdk4R24C mice to development of clonal blastoid MCL-like lymphoma. Breeding p53+/- mice with c-myc-3’RR transgenic mice lead to the development of several mature B cell lymphomas including MCL. In this study we compare MCL transcriptomas of c-myc-3'RR/Cdk4R24C mice and c-myc-3'RR/p53+/- mice. B splenocytes from 2 c-myc/Cdk4R24C lymphoma mice and 2 c-myc-3'RR/p53+/- mice were investigated

2013-01-10 | E-GEOD-36808 | biostudies-arrayexpress

A defect of the INK4-Cdk4 checkpoint and c-myc collaborate in blastoid mantle cell lymphoma (MCL)-like lymphoma formation in mice

Project description:Mantle cell lymphoma (MCL) is a B cell malignancy characterized by a monoclonal proliferation of lymphocytes with co-expression of CD5, CD43 but not CD23. Typical MCL are associated with cyclin D1 overexpression, and blastoid MCL variants are associated with c-myc translocations. We have developed a murine model of MCL-like lymphoma by crossing Cdk4R24C mice with c-myc-3’RR transgenic mice. Cdk4R24C mice is a knock-in strain that express a Cdk4 protein resistant to inhibition by p16INK4a and other INK4 family members. Breeding Cdk4R24C mice with c-myc-3’RR transgenic mice prone to develop aggressive Burkitt lymphoma-like lymphoma leads in c-myc/Cdk4R24C mice to development of clonal blastoid MCL-like lymphoma. A defect of the INK4-Cdk4 checkpoint can participate to lymphomagenesis in conjunction with additional alterations of cell cycle control, a situation which might be reminiscent of the development of human blastoid MCL. B splenocytes from 4 c-myc/Cdk4(R24C) lymphoma mice and 4 wt mice were investigated.

2012-02-01 | E-GEOD-32230 | biostudies-arrayexpress

A defect of the INK4-Cdk4 checkpoint and c-myc collaborate in blastoid mantle cell lymphoma (MCL)-like lymphoma formation in mice

Project description:Mantle cell lymphoma (MCL) is a B cell malignancy characterized by a monoclonal proliferation of lymphocytes with co-expression of CD5, CD43 but not CD23. Typical MCL are associated with cyclin D1 overexpression, and blastoid MCL variants are associated with c-myc translocations. We have developed a murine model of MCL-like lymphoma by crossing Cdk4R24C mice with c-myc-3’RR transgenic mice. Cdk4R24C mice is a knock-in strain that express a Cdk4 protein resistant to inhibition by p16INK4a and other INK4 family members. Breeding Cdk4R24C mice with c-myc-3’RR transgenic mice prone to develop aggressive Burkitt lymphoma-like lymphoma leads in c-myc/Cdk4R24C mice to development of clonal blastoid MCL-like lymphoma. A defect of the INK4-Cdk4 checkpoint can participate to lymphomagenesis in conjunction with additional alterations of cell cycle control, a situation which might be reminiscent of the development of human blastoid MCL.

2012-02-01 | GSE32230 | GEO

c-myc-3'RR/p53+/- mice lymphomas

2012-01-05 | GSE31814 | GEO

c-myc-3'RR/p53+/- mice lymphomas

Project description:c-myc-3'RR mice prone to develop Burkitt lymphoma (BL) were crossed with p53+/- mice in order to obtain c-myc-3'RR/p53+/- mice. These mice develop a wider spectrum of lymphoma including BL, mantle cell lymphoma (MCL) and plasma cell lymphoma (PCL). Transcriptoma analysis of these lymphomas is investigated in these arrays. Four different plasma cell lymphoma (PCL1-4), three different mantle cell lymphoma (MCL1-4) and four different Burkitt lymphoma (BL1-4) were compared.

2012-01-05 | E-GEOD-31814 | biostudies-arrayexpress

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Project description:Transcriptoma comparison of mantle cell lymphoma of c-myc-3'RR/Cdk4R24C mice and c-myc-3'RR/p53+/- mice

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The class-specific BCR tonic signal modulates lymphomagenesis in a transgenic model of c-myc transgene deregulation.

Project description:c-myc-3'RR mice developed Burkitt like lymphoma (IgM and IgD positive cells). We wished to study lymphomagenesis in mice carrying a modified B cell receptor with a higher level of tonic signal. The c-myc-3'RR transgene was introduced in a background with an IgH mutation that replaces IgM with IgA expression. Lymphoma arising in double mutant animals mostly carried the phenotype of activated cells, often expressing CD43, and in 10% of cases carrying a plasma cell phenotype. BCR tonic signal appears as a direct modulator of B cell malignancy phenotype. Burkitt lymphoma (BL) from 4 c-myc-3'RR mice, anaplastic (ANA) lymphoma from 4 c-myc-3'RR mice, CD43 negative lymphoma from 4 c-myc-IgA mice and CD43 positive lymphoma from 4 c-myc-IgA mice were investigated.

2012-02-01 | E-GEOD-32229 | biostudies-arrayexpress

The class-specific BCR tonic signal modulates lymphomagenesis in a transgenic model of c-myc transgene deregulation.

2012-02-01 | GSE32229 | GEO

B-cell receptor driven MALT1 activity regulates MYC signaling in mantle cell lymphoma

Project description:Mantle cell lymphoma (MCL) is a mature B-cell lymphoma characterized by poor clinical outcome. Recent studies revealed the importance of BCR signaling in maintaining MCL survival. However, it remains unclear which role MALT1, an essential component of the CARD11-BCL10-MALT1 (CBM) complex that transfers BCR signaling to the NF-kB pathway, plays in the biology of MCL. Here we show that a subset of MCLs is addicted to MALT1, as its inhibition by either RNA or pharmacologic interference induced cytotoxicity both in vitro and in vivo. Gene expression profiling following MALT1 inhibition demonstrated that MALT1 controls a MYC-driven gene expression network predominantly through increased MYC protein stability. Thus our analyses identify a previously unappreciated regulatory mechanism of MYC expression. Investigating primary mouse splenocytes, we could demonstrate that MALT1 induced MYC regulation is not restricted to MCL, but represents a common mechanism of MYC regulation. MYC itself is pivotal for MCL survival as its downregulation and pharmacologic inhibition induced cytotoxicity in all MCL models. Collectively, these results provide a strong mechanistic rationale to investigate the therapeutic efficacy in targeting the MALT1-MYC axis in MCL patients.

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Project description:c-myc-3'RR/p53+/- mice lymphomas

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