Experimental and integrative analyses identify an ETS1 network downstream of BCR-ABL in chronic myeloid leukemia (CML). Desterke, C., Voldoire, M., Bonnet, M., Sorel, N., Pagliaro, S., Rahban, H., Bennaceur-Griscelli, A., Cayssials, E., Chomel, J., & Turhan, A. G. Experimental Hematology, May, 2018. doi abstract bibtex The BCR-ABL oncogene, the hallmark of chronic myeloid leukemia (CML), has been shown to activate several signaling pathways in leukemic cells. The natural history of this disease has been radically modified by tyrosine kinase inhibitors (TKIs). However, resistance to several lines of TKI therapies and progression to blast crisis (BC) remain significant concerns. To identify novel signaling pathways induced by BCR-ABL, we performed a transcriptome analysis in a BCR-ABL-expressing UT-7 cell line. More than 2000 genes differentially expressed between BCR-ABL-expressing and parental UT-7 cells were identified and ETS1 was found to be the most upregulated. ETS1 protein expression was also shown to be highly increased in UT-7 cells expressing BCR-ABL either constitutively or under the control of TET-inducible promoters. ETS1 expression is tyrosine-kinase dependent because it was reduced by TKIs. A significant increase of ETS1 messenger RNA (mRNA) expression was observed in blood cells from CML patients at diagnosis compared with healthy controls. Integration of publicly available chromatin immunoprecipitation sequencing and transcriptomic data with our results allowed us to identify potential ETS1 targets, some of which are involved in the progression of CML. The messenger RNA expression of two of these genes (DNM3 and LIMS1) was found to be associated with the absence of major cytogenetic response after 1 year of imatinib therapy. The present work demonstrates for the first time the involvement of the ETS1 transcriptional program in the experimental UT-7 model and a large cohort of CML patients.
@article{desterke_experimental_2018,
title = {Experimental and integrative analyses identify an {ETS1} network downstream of {BCR}-{ABL} in chronic myeloid leukemia ({CML})},
issn = {1873-2399},
doi = {10.1016/j.exphem.2018.04.007},
abstract = {The BCR-ABL oncogene, the hallmark of chronic myeloid leukemia (CML), has been shown to activate several signaling pathways in leukemic cells. The natural history of this disease has been radically modified by tyrosine kinase inhibitors (TKIs). However, resistance to several lines of TKI therapies and progression to blast crisis (BC) remain significant concerns. To identify novel signaling pathways induced by BCR-ABL, we performed a transcriptome analysis in a BCR-ABL-expressing UT-7 cell line. More than 2000 genes differentially expressed between BCR-ABL-expressing and parental UT-7 cells were identified and ETS1 was found to be the most upregulated. ETS1 protein expression was also shown to be highly increased in UT-7 cells expressing BCR-ABL either constitutively or under the control of TET-inducible promoters. ETS1 expression is tyrosine-kinase dependent because it was reduced by TKIs. A significant increase of ETS1 messenger RNA (mRNA) expression was observed in blood cells from CML patients at diagnosis compared with healthy controls. Integration of publicly available chromatin immunoprecipitation sequencing and transcriptomic data with our results allowed us to identify potential ETS1 targets, some of which are involved in the progression of CML. The messenger RNA expression of two of these genes (DNM3 and LIMS1) was found to be associated with the absence of major cytogenetic response after 1 year of imatinib therapy. The present work demonstrates for the first time the involvement of the ETS1 transcriptional program in the experimental UT-7 model and a large cohort of CML patients.},
language = {eng},
journal = {Experimental Hematology},
author = {Desterke, Christophe and Voldoire, Maud and Bonnet, Marie-Laure and Sorel, Nathalie and Pagliaro, Sarah and Rahban, Hind and Bennaceur-Griscelli, Annelise and Cayssials, Emilie and Chomel, Jean-Claude and Turhan, Ali G.},
month = may,
year = {2018},
pmid = {29733872},
}
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However, resistance to several lines of TKI therapies and progression to blast crisis (BC) remain significant concerns. To identify novel signaling pathways induced by BCR-ABL, we performed a transcriptome analysis in a BCR-ABL-expressing UT-7 cell line. More than 2000 genes differentially expressed between BCR-ABL-expressing and parental UT-7 cells were identified and ETS1 was found to be the most upregulated. ETS1 protein expression was also shown to be highly increased in UT-7 cells expressing BCR-ABL either constitutively or under the control of TET-inducible promoters. ETS1 expression is tyrosine-kinase dependent because it was reduced by TKIs. A significant increase of ETS1 messenger RNA (mRNA) expression was observed in blood cells from CML patients at diagnosis compared with healthy controls. Integration of publicly available chromatin immunoprecipitation sequencing and transcriptomic data with our results allowed us to identify potential ETS1 targets, some of which are involved in the progression of CML. The messenger RNA expression of two of these genes (DNM3 and LIMS1) was found to be associated with the absence of major cytogenetic response after 1 year of imatinib therapy. The present work demonstrates for the first time the involvement of the ETS1 transcriptional program in the experimental UT-7 model and a large cohort of CML patients.","language":"eng","journal":"Experimental Hematology","author":[{"propositions":[],"lastnames":["Desterke"],"firstnames":["Christophe"],"suffixes":[]},{"propositions":[],"lastnames":["Voldoire"],"firstnames":["Maud"],"suffixes":[]},{"propositions":[],"lastnames":["Bonnet"],"firstnames":["Marie-Laure"],"suffixes":[]},{"propositions":[],"lastnames":["Sorel"],"firstnames":["Nathalie"],"suffixes":[]},{"propositions":[],"lastnames":["Pagliaro"],"firstnames":["Sarah"],"suffixes":[]},{"propositions":[],"lastnames":["Rahban"],"firstnames":["Hind"],"suffixes":[]},{"propositions":[],"lastnames":["Bennaceur-Griscelli"],"firstnames":["Annelise"],"suffixes":[]},{"propositions":[],"lastnames":["Cayssials"],"firstnames":["Emilie"],"suffixes":[]},{"propositions":[],"lastnames":["Chomel"],"firstnames":["Jean-Claude"],"suffixes":[]},{"propositions":[],"lastnames":["Turhan"],"firstnames":["Ali","G."],"suffixes":[]}],"month":"May","year":"2018","pmid":"29733872","bibtex":"@article{desterke_experimental_2018,\n\ttitle = {Experimental and integrative analyses identify an {ETS1} network downstream of {BCR}-{ABL} in chronic myeloid leukemia ({CML})},\n\tissn = {1873-2399},\n\tdoi = {10.1016/j.exphem.2018.04.007},\n\tabstract = {The BCR-ABL oncogene, the hallmark of chronic myeloid leukemia (CML), has been shown to activate several signaling pathways in leukemic cells. The natural history of this disease has been radically modified by tyrosine kinase inhibitors (TKIs). However, resistance to several lines of TKI therapies and progression to blast crisis (BC) remain significant concerns. To identify novel signaling pathways induced by BCR-ABL, we performed a transcriptome analysis in a BCR-ABL-expressing UT-7 cell line. More than 2000 genes differentially expressed between BCR-ABL-expressing and parental UT-7 cells were identified and ETS1 was found to be the most upregulated. ETS1 protein expression was also shown to be highly increased in UT-7 cells expressing BCR-ABL either constitutively or under the control of TET-inducible promoters. ETS1 expression is tyrosine-kinase dependent because it was reduced by TKIs. A significant increase of ETS1 messenger RNA (mRNA) expression was observed in blood cells from CML patients at diagnosis compared with healthy controls. 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