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Comparison of gene expression profile of naive versus arsenic trioxide resistant acute promyelocytic leukemia cell line NB4

ABSTRACT: The aim of this study was to gain insight into the potential mechanism of resistance to arsenic trioxide (ATO). The gene expression profile of naive (NB4) (Acute promyelocytic leukemia (APL) cell line and one of its in house generated ATO resistant sub clone (NB4-VM-AsR1) was done using whole genome microarray and compared to generate the differential expression profile which will give insight into the mechanisms of ATO resistance in APL. Agilent one-color experiment,Organism: Human ,Agilent Whole Genome Human 4x44k (AMADID: 014850) , Labeling kit: Agilent Quick-Amp labeling Kit (p/n5190-0442) naive versus arsenic trioxide resistant acute promyelocytic leukemia cell line NB4

ORGANISM(S): Homo sapiens

SUBMITTER: Genotypic technology

PROVIDER: E-GEOD-42031 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Comparison of gene expression profile of naive versus arsenic trioxide resistant acute promyelocytic leukemia cell line NB4

Project description:The aim of this study was to gain insight into the potential mechanism of resistance to arsenic trioxide (ATO). The gene expression profile of naive (NB4) (Acute promyelocytic leukemia (APL) cell line and one of its in house generated ATO resistant sub clone (NB4-VM-AsR1) was done using whole genome microarray and compared to generate the differential expression profile which will give insight into the mechanisms of ATO resistance in APL.

2013-08-02 | GSE42031 | GEO

Bone marrow micro-environment mediated drug resistance in Acute promyelocytic leukemia

Project description:About 5-10% newly diagnosed and about 20-30% of relapsed acute promyelocytic leukemia (APL) patients will have disease recurrence after receiving currently accepted standards of care. While there are reports of micro-environment mediated drug resistance (EM-DR) in AML, there is no data on the effect of malignant promyelocyte and stromal interaction on Arsenic trioxide (ATO) induced apoptosis. We undertook a preliminary study to evaluate the role of EM-DR to ATO in APL. In direct co-culture (contact dependent system) of malignant promyelocyte with stromal cells, the stromal cells gave a significant protective effect against ATO at different concentrations used (1 to 8 Î¼mol; NB4 (APL cell line) In a gene expression profiling comparing NB4 cells in co-culture with NB4 cells alone, 1846 genes were differentially regulated. On a preliminary analysis, we observed an up-regulation of various pathways such as adhesion (ITGB1, ITGB2, ITGB7, etc.), Cytokines (IL-6, IL-8, IL-18, CCL2, CCL10, etc.) Wnt signalling (Wnt5a, Wnt11, NFATC4, etc,) NF-kB pathway (ICAM1, BIRC2, BIRC3, XIAP1, etc.) in the leukemic cells. The NF-kB pathway has been validated using real time PCR which correlated with the genes being differentially regulated in NB4 cells co-cultured in stroma. Agilent one-color experiment,Organism: Homo sapiens ,Custom Agilent 8x60k Human Whole Genome Microarray Gene expression (AMADID: 039494) , Labeling kit: Agilent Quick-Amp labeling Kit (p/n5190-0442)

2016-09-01 | E-GEOD-73157 | biostudies-arrayexpress

Genome-wide expression profiling of acute promyelocytic leukemia NB4 cells treated with all-trans-retinoic acid

Project description:Acute promyelocytic leukemia (APL) is a hematological disease characterized by a balanced reciprocal translocation that leads to the synthesis of the oncogenic fusion protein PML-RARα. APL is mainly managed by a differentiation therapy based on the administration of all-trans retinoic acid (ATRA) and arsenic trioxide (ATO). However, therapy resistance, differentiation syndrome, and relapses require the development of new low-toxicity therapies based on the induction of blasts differentiation. Here, we performed a high-throughput gene expression profile of the maturation inducible APL cell line NB4 untreated or exposed to ATRA.

2020-11-05 | GSE155779 | GEO

Expression data from NB4 control shRNA cells and NB4 TRIB3 shRNA cells

Project description:To identify the top 20 up-regulated genes in NB4 TRIB3 shRNA cells in comparison with NB4 control shRNA cells, we examined the microarray gene expression profile of these groups above. Despite the fact that combined therapy of all-trans retinoic acid (ATRA) with arsenic trioxide (ATO) or chemotherapy dramatically improves the prognosis of patients with acute promyelocytic leukemia (APL), these regimens can cause systemic infections and secondary leukemias. Here we report that expression of the pseudokinase Tribble 3 (TRIB3) associates positively with APL progression and therapeutic resistance. The elevated TRIB3 expression promotes APL by interacting with PML-RARa and suppressing its sumoylation, ubiquitylation and degradation. This represses PML nuclear body assembly, p53-mediated senescence, cell differentiation, and supports cellular self-renewal. Genetically inhibiting Trib3 expression or disturbing the TRIB3/PML-RARa interaction produces potent therapeutic efficacy against APL and has synergic anti-APL effects when used in combination with ATRA or ATO by promoting PML-RARa degradation and PML expression. Our study provides new insight into APL pathogenesis and a new therapeutic option against APL.

2017-05-12 | GSE95637 | GEO

Differential gene expression profile of newly diagnosed versus relapse acute promyelocytic leukemia

Project description:The aim of this study was to gain insight into the potential mechanism of resistance to arsenic trioxide and to identify genes that are modulated in the malignant promyelocytes at the time of relapse in APL patients. We analyzed the gene expression profile by the whole genome microarray of primary promyelocytes obtained from 8 newly diagnosed and 8 at relapse patients. Agilent one-color experiment,Organism: Human ,Agilent Whole Genome Human 4x44k (AMADID: 014850) , Labeling kit: Agilent Quick-Amp labeling Kit (p/n5190-0442) newly diagnosed versus relapse acute promyelocytic leukemia

2013-08-02 | E-GEOD-42030 | biostudies-arrayexpress

Bone marrow micro-environment mediated drug resistance in Acute promyelocytic leukemia

Project description:About 5-10% newly diagnosed and about 20-30% of relapsed acute promyelocytic leukemia (APL) patients will have disease recurrence after receiving currently accepted standards of care. While there are reports of micro-environment mediated drug resistance (EM-DR) in AML, there is no data on the effect of malignant promyelocyte and stromal interaction on Arsenic trioxide (ATO) induced apoptosis. We undertook a preliminary study to evaluate the role of EM-DR to ATO in APL. In direct co-culture (contact dependent system) of malignant promyelocyte with stromal cells, the stromal cells gave a significant protective effect against ATO at different concentrations used (1 to 8 μmol; NB4 (APL cell line) In a gene expression profiling comparing NB4 cells in co-culture with NB4 cells alone, 1846 genes were differentially regulated. On a preliminary analysis, we observed an up-regulation of various pathways such as adhesion (ITGB1, ITGB2, ITGB7, etc.), Cytokines (IL-6, IL-8, IL-18, CCL2, CCL10, etc.) Wnt signalling (Wnt5a, Wnt11, NFATC4, etc,) NF-kB pathway (ICAM1, BIRC2, BIRC3, XIAP1, etc.) in the leukemic cells. The NF-kB pathway has been validated using real time PCR which correlated with the genes being differentially regulated in NB4 cells co-cultured in stroma.

2016-09-01 | GSE73157 | GEO

Comparing Gene Expression Profiling of ATO sensitive and Resistant cell lines

Project description:To further characerize the arsenic trioxide (ATO) resistance in acutepromyelocytic leukemia, we had made NB4 cell line (arsenic sensitive) to be resistant to arsenic by exposing them to increasing concentration till they are resistant to it and we named it NB4-EV-AsR1. We have also used another cell line (UF1) which is by default resistant to arsenic. Comparing the GEP will give us novel pathways that can contirbute to arseic trioxide.

2019-06-01 | GSE115812 | GEO

Gene expression profiling of ATRA-resistant NB4-MR4 subclone (R4 cell line) treated with a CHK1 inhibitor i(MK-8776).

Project description:Acute promyelocytic leukemia (APL) is a hematological disease characterized by a balanced reciprocal translocation that leads to the synthesis of the oncogenic fusion protein PML-RARα. APL is mainly managed by a differentiation therapy based on the administration of all-trans retinoic acid (ATRA) and arsenic trioxide (ATO). However, therapy resistance, differentiation syndrome, and relapses require the development of new low-toxicity therapies based on the induction of blasts differentiation. Here, we performed a high-throughput gene expression profile of the ATRA-resistant acute promyelocytic leukemia (APL) cellline (aka R4) treated with a CHK1 inhibitor or DMSO as control.

2024-01-01 | GSE223329 | GEO

Bone marrow microenvironment mediated drug resistance in Acute promyelocytic leukemia

2020-01-10 | GSE124987 | GEO

Torque Teno Mini Virus as a cause of childhood acute promyelocytic leukemia lacking PML/RARA fusion

Project description:We describe a case of a child affected by a relapsed PML/RARA-negative acute promyelocytic leukemia (APL) rescued by a combination of all-trans retinoic acid (ATRA) and arsenic trioxide (ATO) and subsequent HSCT. We provide evidence of the presence of a chimeric viral transcript generated through genomic integration of a Torque Teno Mini Virus sequence into RARA intron 2, the recurrent breakpoint of all chimeric RARA fusions found in APL. This generates an in-frame TTMV/RARA chimeric fusion that is highly expressed at disease diagnosis and relapse and fully cleared at remission achievement.

2021-12-01 | GSE169521 | GEO

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