Transcriptome Analysis of treated cells in Philadelphia Chromosome-Like Acute Lymphoblastic Leukemia
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ABSTRACT:
ORGANISM(S): Homo sapiens
PROVIDER: GSE161939 | GEO | 2021/09/22
REPOSITORIES: GEO
Similar Datasets
Project description:The Philadelphia chromosome (Ph) encodes the oncogenic BCR-ABL1 tyrosine kinase, which defines a subset of acute lymphoblastic leukemia (ALL) with a particularly unfavorable prognosis. Tyrosine kinase inhibitors (TKI) are widely used to treat patients with leukemia driven by BCR-ABL1 and other oncogenic tyrosine kinases. In response to TKI-treatment, BCR-ABL1 ALL cells upregulate BCL6 protein levels by ~90-fold, i.e. to similar levels as in diffuse large B cell lymphoma (DLBCL) with BCL6 translocations. In this study, we used genome tiling arrays to identify BCL6 target genes with specific recruitment of BCL6. Three Ph+ ALL cell lines (BV-173, NALM-1 and TOM-1) in duplicate were either treated with 10µM STI571 (Imatinib) for 24 hours or cultured in absence of STI571.
2011-02-15 | E-GEOD-24404 | biostudies-arrayexpress
Project description:The Philadelphia chromosome (Ph) encodes the oncogenic BCR-ABL1 tyrosine kinase, which defines a subset of acute lymphoblastic leukemia (ALL) with a particularly unfavorable prognosis. Tyrosine kinase inhibitors (TKI) are widely used to treat patients with leukemia driven by BCR-ABL1 and other oncogenic tyrosine kinases. In response to TKI-treatment, BCR-ABL1 ALL cells upregulate BCL6 protein levels by ~90-fold, i.e. to similar levels as in diffuse large B cell lymphoma (DLBCL) with BCL6 translocations. In this study, we analyzed the gene expression changes after treatment with Imatinib or Imatinib + RI-BPI. Three Ph+ ALL cell lines (BV-173, SUP-B15 and TOM-1) were treated in the presence or absence of 10 μM STI571 (Imatinib) or in the presence of both 10 μM STI571 and 20 μM RI-BPI for 24 hours.
2011-03-01 | E-GEOD-24381 | biostudies-arrayexpress
Project description:The Philadelphia chromosome (Ph) encodes the oncogenic BCR-ABL1 tyrosine kinase, which defines a subset of acute lymphoblastic leukemia (ALL) with a particularly unfavorable prognosis. Tyrosine kinase inhibitors (TKI) are widely used to treat patients with leukemia driven by BCR-ABL1 and other oncogenic tyrosine kinases. In response to TKI-treatment, BCR-ABL1 ALL cells upregulate BCL6 protein levels by ~90-fold, i.e. to similar levels as in diffuse large B cell lymphoma (DLBCL) with BCL6 translocations. In this study, we analyzed the gene expression changes after treatment with Imatinib or Imatinib + RI-BPI.
2011-03-01 | GSE24381 | GEO
Project description:The Philadelphia chromosome (Ph) encodes the oncogenic BCR-ABL1 tyrosine kinase, which defines a subset of acute lymphoblastic leukemia (ALL) with a particularly unfavorable prognosis. Tyrosine kinase inhibitors (TKI) are widely used to treat patients with leukemia driven by BCR-ABL1 and other oncogenic tyrosine kinases. In response to TKI-treatment, BCR-ABL1 ALL cells upregulate BCL6 protein levels by ~90-fold, i.e. to similar levels as in diffuse large B cell lymphoma (DLBCL) with BCL6 translocations. In this study, we used genome tiling arrays to identify BCL6 target genes with specific recruitment of BCL6.
2011-02-15 | GSE24404 | GEO
Project description:Philadelphia chromosome-like acute lymphoblastic leukemia (Ph-like ALL) is a common high-risk leukemia subtype defined by a kinase-activated gene expression pattern and chemoresistance, with low overall survival rates in both children and adults. Clinical responses of patients with Ph-like ALL to tyrosine kinase inhibitor (TKI)-based therapies are incomplete, suggesting partial oncogene addiction and highlighting the need to elucidate alternative biologic dependencies to cure patients. Herein, we report integrated bulk and single-cell multiomics studies of Ph-like ALL cells treated in vitro and in vivo with targeted agents to comprehensively define signaling adaptations and resistant subpopulations. Characterizing residual/resistant human ALL cells harvested from murine spleens revealed transcriptional regulatory network changes and kinase signaling adaptations. We identified key transcription factors including c-MYC and AP1 that mediate transcriptional rewiring associated with therapeutic escape, and demonstrate a specific MYC dependency in Ph-like ALL cells. We found a sub-population of leukemia blasts that have high senescence-associated stem cell-like features that is effectively eradicated only with combined STAT and BCL-2 inhibition. This is clinically significant since both conventional chemotherapy and ruxolitinib are ineffective against senescent stem-like blasts, which may mediate therapeutic tolerance and repopulate relapse. Our findings demonstrate that systems level discovery of key oncogenic dependencies and escape pathways can be exploited for co-targeting or sequential treatment to optimally eradicate blasts and cure this high-risk leukemia subtype.
2025-01-09 | GSE263708 | GEO
Project description:Philadelphia chromosome-like acute lymphoblastic leukemia (Ph-like ALL) is a common high-risk leukemia subtype defined by a kinase-activated gene expression pattern and chemoresistance, with low overall survival rates in both children and adults. Clinical responses of patients with Ph-like ALL to tyrosine kinase inhibitor (TKI)-based therapies are incomplete, suggesting partial oncogene addiction and highlighting the need to elucidate alternative biologic dependencies to cure patients. Herein, we report integrated bulk and single-cell multiomics studies of Ph-like ALL cells treated in vitro and in vivo with targeted agents to comprehensively define signaling adaptations and resistant subpopulations. Characterizing residual/resistant human ALL cells harvested from murine spleens revealed transcriptional regulatory network changes and kinase signaling adaptations. We identified key transcription factors including c-MYC and AP1 that mediate transcriptional rewiring associated with therapeutic escape, and demonstrate a specific MYC dependency in Ph-like ALL cells. We found a sub-population of leukemia blasts that have high senescence-associated stem cell-like features that is effectively eradicated only with combined STAT and BCL-2 inhibition. This is clinically significant since both conventional chemotherapy and ruxolitinib are ineffective against senescent stem-like blasts, which may mediate therapeutic tolerance and repopulate relapse. Our findings demonstrate that systems level discovery of key oncogenic dependencies and escape pathways can be exploited for co-targeting or sequential treatment to optimally eradicate blasts and cure this high-risk leukemia subtype.
2025-01-09 | GSE263707 | GEO
Project description:The Philadelphia chromosome (Ph) encodes the oncogenic BCR-ABL1 tyrosine kinase, which defines a subset of acute lymphoblastic leukemia (ALL) with a particularly unfavorable prognosis. In this study, the tyrosine kinase inhibitor imatinib was used for pharmacological inhibition of BCR-ABL1. Gene expression profiles of Ph+ ALL cell lines were analyzed in response to imatinib treatment.
2010-09-10 | GSE23743 | GEO
Project description:Philadelphia chromosome-like acute lymphoblastic leukemia (Ph-like ALL) is a common high-risk leukemia subtype defined by a kinase-activated gene expression pattern and chemoresistance, with low overall survival rates in both children and adults. Clinical responses of patients with Ph-like ALL to tyrosine kinase inhibitor (TKI)-based therapies are incomplete, suggesting partial oncogene addiction and highlighting the need to elucidate alternative biologic dependencies to cure patients. Herein, we report integrated bulk and single-cell multiomics studies of Ph-like ALL cells treated in vitro and in vivo with targeted agents to comprehensively define signaling adaptations and resistant subpopulations. Characterizing residual/resistant human ALL cells harvested from murine spleens revealed transcriptional regulatory network changes and kinase signaling adaptations. We identified key transcription factors including c-MYC and AP1 that mediate transcriptional rewiring associated with therapeutic escape, and demonstrate a specific MYC dependency in Ph-like ALL cells. We found a sub-population of leukemia blasts that have high senescence-associated stem cell-like features that is effectively eradicated only with combined STAT and BCL-2 inhibition. This is clinically significant since both conventional chemotherapy and ruxolitinib are ineffective against senescent stem-like blasts, which may mediate therapeutic tolerance and repopulate relapse. Our findings demonstrate that systems level discovery of key oncogenic dependencies and escape pathways can be exploited for co-targeting or sequential treatment to optimally eradicate blasts and cure this high-risk leukemia subtype.
2025-01-09 | GSE263709 | GEO
Project description:Philadelphia chromosome-like acute lymphoblastic leukemia (Ph-like ALL) is a common high-risk leukemia subtype defined by a kinase-activated gene expression pattern and chemoresistance, with low overall survival rates in both children and adults. Clinical responses of patients with Ph-like ALL to tyrosine kinase inhibitor (TKI)-based therapies are incomplete, suggesting partial oncogene addiction and highlighting the need to elucidate alternative biologic dependencies to cure patients. Herein, we report integrated bulk and single-cell multiomics studies of Ph-like ALL cells treated in vitro and in vivo with targeted agents to comprehensively define signaling adaptations and resistant subpopulations. Characterizing residual/resistant human ALL cells harvested from murine spleens revealed transcriptional regulatory network changes and kinase signaling adaptations. We identified key transcription factors including c-MYC and AP1 that mediate transcriptional rewiring associated with therapeutic escape, and demonstrate a specific MYC dependency in Ph-like ALL cells. We found a sub-population of leukemia blasts that have high senescence-associated stem cell-like features that is effectively eradicated only with combined STAT and BCL-2 inhibition. This is clinically significant since both conventional chemotherapy and ruxolitinib are ineffective against senescent stem-like blasts, which may mediate therapeutic tolerance and repopulate relapse. Our findings demonstrate that systems level discovery of key oncogenic dependencies and escape pathways can be exploited for co-targeting or sequential treatment to optimally eradicate blasts and cure this high-risk leukemia subtype.
2025-01-09 | GSE263710 | GEO
Project description:CRLF2 rearranged Ph-like ALL cells are driven by oncogenic cytokine receptor signaling mediated by CRLF2 and JAK2. MHH-cALL4 cells were treated with ruxolotinib (JAK2 inhibitor) to provide insight into mechanisms of drug resistance.
2020-05-28 | GSE132486 | GEO