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Morris J, Kunkel MW, White SL, Wishka DG, Lopez OD, Bowles L, Sellers Brady P, Ramsey P, Grams J, Rohrer T, Martin K, Dexheimer TS, Coussens NP, Evans D, Risbood P, Sonkin D, Williams JD, Polley EC, Collins JM, Doroshow JH, Teicher BA. Targeted Investigational Oncology Agents in the NCI-60: A Phenotypic Systems-based Resource. Mol Cancer Ther 2023; 22:1270-1279. [PMID: 37550087 PMCID: PMC10618733 DOI: 10.1158/1535-7163.mct-23-0267] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 07/11/2023] [Accepted: 08/02/2023] [Indexed: 08/09/2023]
Abstract
The NCI-60 human tumor cell line panel has proved to be a useful tool for the global cancer research community in the search for novel chemotherapeutics. The publicly available cell line characterization and compound screening data from the NCI-60 assay have significantly contributed to the understanding of cellular mechanisms targeted by new oncology agents. Signature sensitivity/resistance patterns generated for a given chemotherapeutic agent against the NCI-60 panel have long served as fingerprint presentations that encompass target information and the mechanism of action associated with the tested agent. We report the establishment of a new public NCI-60 resource based on the cell line screening of a large and growing set of 175 FDA-approved oncology drugs (AOD) plus >825 clinical and investigational oncology agents (IOA), representing a diverse set (>250) of therapeutic targets and mechanisms. This data resource is available to the public (https://ioa.cancer.gov) and includes the raw data from the screening of the IOA and AOD collection along with an extensive set of visualization and analysis tools to allow for comparative study of individual test compounds and multiple compound sets.
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Affiliation(s)
- Joel Morris
- Division of Cancer Treatment and Diagnosis, NCI, Rockville, Maryland
| | - Mark W. Kunkel
- Division of Cancer Treatment and Diagnosis, NCI, Rockville, Maryland
| | - Stephen L. White
- Division of Cancer Treatment and Diagnosis, NCI, Rockville, Maryland
| | - Donn G. Wishka
- Division of Cancer Treatment and Diagnosis, NCI, Rockville, Maryland
| | - Omar D. Lopez
- Division of Cancer Treatment and Diagnosis, NCI, Rockville, Maryland
| | - Lori Bowles
- Target Validation and Screening Laboratory, Applied and Developmental Research Directorate, Frederick National, Laboratory for Cancer Research, Frederick, Maryland
| | - Penny Sellers Brady
- Target Validation and Screening Laboratory, Applied and Developmental Research Directorate, Frederick National, Laboratory for Cancer Research, Frederick, Maryland
| | - Patricia Ramsey
- Target Validation and Screening Laboratory, Applied and Developmental Research Directorate, Frederick National, Laboratory for Cancer Research, Frederick, Maryland
| | - Julie Grams
- Target Validation and Screening Laboratory, Applied and Developmental Research Directorate, Frederick National, Laboratory for Cancer Research, Frederick, Maryland
| | - Tiffany Rohrer
- Target Validation and Screening Laboratory, Applied and Developmental Research Directorate, Frederick National, Laboratory for Cancer Research, Frederick, Maryland
| | - Karen Martin
- Target Validation and Screening Laboratory, Applied and Developmental Research Directorate, Frederick National, Laboratory for Cancer Research, Frederick, Maryland
| | - Thomas S. Dexheimer
- Target Validation and Screening Laboratory, Applied and Developmental Research Directorate, Frederick National, Laboratory for Cancer Research, Frederick, Maryland
| | - Nathan P. Coussens
- Target Validation and Screening Laboratory, Applied and Developmental Research Directorate, Frederick National, Laboratory for Cancer Research, Frederick, Maryland
| | - David Evans
- Target Validation and Screening Laboratory, Applied and Developmental Research Directorate, Frederick National, Laboratory for Cancer Research, Frederick, Maryland
| | - Prabhakar Risbood
- Division of Cancer Treatment and Diagnosis, NCI, Rockville, Maryland
| | - Dmitriy Sonkin
- Division of Cancer Treatment and Diagnosis, NCI, Rockville, Maryland
| | - John D. Williams
- Division of Cancer Treatment and Diagnosis, NCI, Rockville, Maryland
| | - Eric C. Polley
- Division of Cancer Treatment and Diagnosis, NCI, Rockville, Maryland
| | - Jerry M. Collins
- Division of Cancer Treatment and Diagnosis, NCI, Rockville, Maryland
| | - James H. Doroshow
- Division of Cancer Treatment and Diagnosis, NCI, Rockville, Maryland
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Su Y, Kuo M, Chen T, Wang M, Yang Y, Ma M, Lin T, Lin T, Chang H, Teng CJ, Hsiao P, Chen C, Wang P, Shih L. Comparison of molecular responses and outcomes between
BCR‐ABL1
e14a2 and e13a2 transcripts in chronic myeloid leukemia. Cancer Sci 2022; 113:3518-3527. [PMID: 35869805 PMCID: PMC9530867 DOI: 10.1111/cas.15501] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 07/11/2022] [Accepted: 07/19/2022] [Indexed: 11/30/2022] Open
Abstract
Several studies have compared the molecular responses between e14a2 and e13a2 BCR::ABL1 transcripts in chronic myeloid leukemia (CML) patients treated with front‐line imatinib, but there were very limited studies on nilotinib or dasatinib‐treated patients. We retrospectively analyzed the molecular responses in 1124 CML patients with the e14a2 or e13a2 transcript receiving front‐line imatinib, nilotinib or dasatinib treatment. Patients with the e14a2 transcript had higher optimal response rates than those with the e13a2 transcript at 12 months in the imatinib‐treated group, and 6 and 12 months in the nilotinib‐treated group. The optimal response rates were not significantly different between the two transcripts in the dasatinib‐treated group at landmark molecular responses. With a median follow‐up time of 48.4 months, higher cumulative incidences of BCR::ABL1 International Scale ≤1% and major molecular response were observed in patients with the e14a2 rather than the e13a2 transcript receiving front‐line imatinib or nilotinib treatment, but not in dasatinib‐treated patients. The progression‐free survival and overall survival did not differ between the two transcripts in all three treatment groups. In view of the speed and depth of molecular responses, BCR::ABL1 transcript subtypes might provide helpful information in selecting a front‐line tyrosine kinase inhibitor for individual young patients with future potential treatment‐free remission.
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Affiliation(s)
- Yi‐Jiun Su
- Division of Hematology‐Oncology, Chang Gung Memorial Hospital at Linkou Taoyuan Taiwan
| | - Ming‐Chung Kuo
- Division of Hematology‐Oncology, Chang Gung Memorial Hospital at Linkou Taoyuan Taiwan
- Chang Gung University School of Medicine Taoyuan Taiwan
| | - Tsai‐Yun Chen
- National Cheng Kung University Hospital Tainan Taiwan
| | - Ming‐Chung Wang
- Division of Hematology‐Oncology, Chang Gung Memorial Hospital at Kaohsiung Kaohsiung Taiwan
| | - Youngsen Yang
- Division of Hematology‐Oncology, Department of Internal Medicine, Taichung Veterans General Hospital Taichung Taiwan
- Internal Medicine, College of Medicine China Medical University Taichung Taiwan
| | - Ming‐Chun Ma
- Division of Hematology‐Oncology, Chang Gung Memorial Hospital at Kaohsiung Kaohsiung Taiwan
| | - Tung‐Liang Lin
- Division of Hematology‐Oncology, Chang Gung Memorial Hospital at Linkou Taoyuan Taiwan
| | - Tung‐Huei Lin
- Division of Hematology‐Oncology, Chang Gung Memorial Hospital at Linkou Taoyuan Taiwan
| | - Hung Chang
- Division of Hematology‐Oncology, Chang Gung Memorial Hospital at Linkou Taoyuan Taiwan
| | - Chieh‐Lin Jerry Teng
- Division of Hematology/Medical Oncology, Department of Medicine, Taichung Veterans General Hospital Taichung Taiwan
- Department of Life Science Tunghai University Taichung Taiwan
- School of Medicine Chung Shan Medical University Taichung Taiwan
| | | | - Chih‐Cheng Chen
- Chang Gung University School of Medicine Taoyuan Taiwan
- Division of Hematology‐Oncology, Chang Gung Memorial Hospital at Chiayi Chiayi Taiwan
| | - Po‐Nan Wang
- Division of Hematology‐Oncology, Chang Gung Memorial Hospital at Linkou Taoyuan Taiwan
| | - Lee‐Yung Shih
- Division of Hematology‐Oncology, Chang Gung Memorial Hospital at Linkou Taoyuan Taiwan
- Chang Gung University School of Medicine Taoyuan Taiwan
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Abdulla MAJ, Chandra P, Akiki SE, Aldapt MB, Sardar S, Chapra A, Nashwan AJ, Sorio C, Tomasello L, Boni C, Yassin MA. Clinicopathological Variables and Outcome in Chronic Myeloid Leukemia Associated With BCR-ABL1 Transcript Type and Body Weight: An Outcome of European LeukemiaNet Project. Cancer Control 2021; 28:10732748211038429. [PMID: 34789006 PMCID: PMC8619745 DOI: 10.1177/10732748211038429] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Objective It is debatable whether BCR-ABL1 transcript type has an impact on outcome of treatment of patients with CML, and it is not widely studied whether body weight influences response to treatment. In this study, we tried to find out if any of these factors has an impact on response to treatment and outcome. Methodology We conducted a retrospective analysis of the files of 79 patients being treated in our center for CML with known BCR-ABL1 breakpoints, and patients’ management and response assessment was done based on ELN 2013 guidelines. The analysis was performed based on two main groups, obese vs. normal BMI, and then based on BCR-ABL1 transcripts: e13a2 vs. e14a2. Cumulative incidence of MMR, CCyR, and DMR were estimated using the Kaplan–Meier survival curve method, and comparisons between groups were performed by the Log-rank/Gray test methods. Results/conclusion In the patient-cohort studied, there was no statistically significant difference in molecular response between patients with CML based on body weight or transcript type although patients in the obesity group achieved higher and faster MMR with no statistical significance.
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Affiliation(s)
- Mohammad A J Abdulla
- Department of Medical Oncology, Hematology Section, National Center for Cancer Care and Research, 36977Hamad Medical Corporation, Doha, Qatar
| | - Prem Chandra
- Medical Research Center, Biostatistics Section, 36977Hamad Medical Corporation, Doha, Qatar
| | - Susanna El Akiki
- Department of Laboratory Medicine and Pathology, 36977Hamad Medical Corporation, Doha, Qatar
| | - Mahmood B Aldapt
- Department of Medical Oncology, Hematology Section, National Center for Cancer Care and Research, 36977Hamad Medical Corporation, Doha, Qatar
| | - Sundus Sardar
- Department of Internal Medicine, 36977Hamad Medical Corporation, Doha, Qatar
| | - Ammar Chapra
- Department of Internal Medicine, 36977Hamad Medical Corporation, Doha, Qatar
| | - Abdulqadir J Nashwan
- Department of Nursing, Hazm Mebaireek General Hospital, 36977Hamad Medical Corporation, Doha, Qatar
| | | | | | | | - Mohamed A Yassin
- Department of Medical Oncology, Hematology Section, National Center for Cancer Care and Research, 36977Hamad Medical Corporation, Doha, Qatar
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Patel KD, De M, Jethva DD, Rathod BS, Patel PS. Alterations in Sialylation Patterns are Significantly Associated with Imatinib Mesylate Resistance in Chronic Myeloid Leukemia. Arch Med Res 2021; 53:51-58. [PMID: 34275666 DOI: 10.1016/j.arcmed.2021.06.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 01/24/2021] [Accepted: 06/02/2021] [Indexed: 11/19/2022]
Abstract
BACKGROUND AND AIM The study examined sialylation changes for their potential predictive value in assessment of imatinib mesylate (IM) resistance, alone and/or with BCR-ABL1 transcript variants among chronic myeloid leukemia (CML) cases. METHODS A total of 98 CML cases (un-treated cases, IM non-responders and IM responders) were enrolled in the study. Total sialic acid (TSA) and total protein (TP) levels were estimated spectrophotometrically, the expression profiles of BCR-ABL1, ST3GAL1 and ST3GAL2 were evaluated using qRT-PCR assays and BCR-ABL1 transcript variants were identified through subjecting PCR products to agarose gel electrophoresis. RESULTS The results manifested increase in e14a2 transcript and decrease in co-expression of both transcripts (e13a2 and e14a2) in IM non-responders than un-treated CML cases. Notably, TSA/TP ratio was higher, whereas ST3GAL1 and ST3GAL2 expressions were lower in un-treated CML cases and IM non-responders as against IM responders. Further, ST3GAL2 expression was lower in un-treated CML cases than IM non-responders. Receiver operating characteristic curves also proved their discriminatory efficiencies. Decisively, the rise in TSA levels and the fall in ST3GAL1 and ST3GAL2 levels were evidently related to CML progression and clinical indicators of treatment failure (high BCR-ABL1 ratio, high WBC count, high platelet count and low Hb levels). The alterations in TSA, ST3GAL1 and ST3GAL2 levels were remarkably associated with each other. CONCLUSIONS The altered levels of TSA, ST3GAL1 and ST3GAL2 are, to a significant extent, associated with IM resistance in CML, which have clinical relevance in treatment monitoring and IM resistance treatment.
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Affiliation(s)
- Kinjal D Patel
- Cancer Biology Department, The Gujarat Cancer and Research Institute, Civil Hospital Campus, Asarwa, Ahmedabad, Gujarat, India
| | - Maitri De
- Cancer Biology Department, The Gujarat Cancer and Research Institute, Civil Hospital Campus, Asarwa, Ahmedabad, Gujarat, India
| | - Disha D Jethva
- Cancer Biology Department, The Gujarat Cancer and Research Institute, Civil Hospital Campus, Asarwa, Ahmedabad, Gujarat, India
| | - Bharati S Rathod
- Cancer Biology Department, The Gujarat Cancer and Research Institute, Civil Hospital Campus, Asarwa, Ahmedabad, Gujarat, India
| | - Prabhudas S Patel
- Cancer Biology Department, The Gujarat Cancer and Research Institute, Civil Hospital Campus, Asarwa, Ahmedabad, Gujarat, India.
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Owojuyigbe TO, Durosinmi MA, Bolarinwa RAA, Salawu L, Akinola NO, Ademosun AA, Bosede OT. Distribution of BCR-ABL1 Transcript Variants in Nigerians with Chronic Myeloid Leukemia. Indian J Hematol Blood Transfus 2020; 36:646-651. [PMID: 33100706 DOI: 10.1007/s12288-020-01264-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Accepted: 02/15/2020] [Indexed: 11/29/2022] Open
Abstract
The distribution of BCR-ABL1 transcript variants e13a2 ("b2a2") and e14a2 ("b3a2") in Nigerians with chronic myeloid leukemia (CML) had not been previously studied. In addition, there is paucity of data on the impact of BCR-ABL1 transcript variants on clinical presentation and survival in CML patients in Nigeria. The BCR-ABL1 transcript variants were analyzed in 230 Imatinib-treated CML patients at diagnosis. Patients with incomplete data (n = 28), e19a2 (n = 3) and e1a2 (n = 1) were excluded from analysis of transcript variant on disease presentation and survival leaving only 198. The frequencies of BCR-ABL1 transcript variants were 30 (13.0%), 114 (49.6%), 82 (35.7%), three (1.3%) and one (0.4%) for e13a2, e14a2, co-expression of e13a2/e14a2, e19a2 and e1a2, respectively. A significantly higher platelet count was found in patients with e13a2 variant (531.1 ± 563.4 × 109/L) than in those expressing e14a2 (488.2 ± 560.3 × 109/L) or e13a2/e14a2 (320.7 ± 215.8 × 109/L); p = 0.03. No significant differences were found between the variants with regards to gender, age, phase of disease at diagnosis, total white blood cell count, neutrophil percentage, hematocrit, splenomegaly or hepatomegaly. Overall survival was higher but not statistically significant (p = 0.4) in patients with e14a2 variant (134 months) than in e13a2 (119 months) and co-expression of e13a2/e14a2 (115 months). Nigerian CML patients have the highest incidence of co-expression of e13a2 and e14a2. Distinct disease characteristics which contrast with findings from the Western countries were also identified in Nigerians which may be due to genetic factors.
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Affiliation(s)
- Temilola O Owojuyigbe
- Department of Haematology and Blood Transfusion, Obafemi Awolowo University Teaching Hospitals Complex (OAUTHC), Ile-Ife, Nigeria
| | - Muheez A Durosinmi
- Department of Haematology and Blood Transfusion, Obafemi Awolowo University Teaching Hospitals Complex (OAUTHC), Ile-Ife, Nigeria
| | - Ramoni A A Bolarinwa
- Department of Haematology and Blood Transfusion, Obafemi Awolowo University Teaching Hospitals Complex (OAUTHC), Ile-Ife, Nigeria
| | - Lateef Salawu
- Department of Haematology and Blood Transfusion, Obafemi Awolowo University Teaching Hospitals Complex (OAUTHC), Ile-Ife, Nigeria
| | - Norah O Akinola
- Department of Haematology and Blood Transfusion, Obafemi Awolowo University Teaching Hospitals Complex (OAUTHC), Ile-Ife, Nigeria
| | - Abdulwaheed A Ademosun
- Department of Haematology and Blood Transfusion, Obafemi Awolowo University Teaching Hospitals Complex (OAUTHC), Ile-Ife, Nigeria
| | - Oluwayomi T Bosede
- Department of Haematology and Blood Transfusion, Obafemi Awolowo University Teaching Hospitals Complex (OAUTHC), Ile-Ife, Nigeria
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Prognostic Significance of Transcript-Type BCR - ABL1 in Chronic Myeloid Leukemia. Mediterr J Hematol Infect Dis 2020; 12:e2020062. [PMID: 32952973 PMCID: PMC7485470 DOI: 10.4084/mjhid.2020.062] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 08/10/2020] [Indexed: 02/04/2023] Open
Abstract
Chronic myeloid leukemia (CML) is characterized by the presence of the BCR-ABL1 fusion gene. In more than 95% of CML patients, the typical BCR-ABL1 transcript subtypes are e13a2 (b2a2), e14a2 (b3a2), or the simultaneous expression of both. Other less frequent transcript subtypes, such as e1a2, e2a2, e6a2, e19a2, e1a3, e13a3, and e14a3, have been sporadically reported. The main purpose of this review is to assess the possible impact of different transcripts on the response rate to tyrosine kinase inhibitors (TKIs), the achievement of stable deep molecular responses (s-DMR), the potential maintenance of treatment-free remission (TFR), and long-term outcome of CML patients treated with TKIs. According to the majority of published studies, patients with e13a2 transcript treated with imatinib have lower and slower cytogenetic and molecular responses than those with e14a2 transcript. They should be considered a high-risk group that would most benefit from frontline treatment with second-generation TKIs (2GTIKIs). Although few studies have been published, similar significant differences in response rates to 2GTKIs have been not reported. The e14a2 transcript seems to be a favorable prognostic factor for obtaining s-DMR, irrespective of the TKI received, and is also associated with a very high rate of TFR maintenance. Indeed, patients with e13a2 transcript achieve a lower rate of s-DMR and experience a higher probability of TFR failure. According to most reported data in the literature, the type of transcript does not seem to affect long-term outcomes of CML patients treated with TKIs. In TFR, the e14a2 transcript appears to be related to favorable responses. 2GTKIs as frontline therapy might be a convenient approach in patients with e13a2 transcript to achieve optimal long-term outcomes.
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Influence of major BCR-ABL1 transcript subtype on outcome in patients with chronic myeloid leukemia in chronic phase treated frontline with nilotinib. Oncotarget 2020; 11:2560-2570. [PMID: 32655840 PMCID: PMC7335668 DOI: 10.18632/oncotarget.27652] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 06/05/2020] [Indexed: 11/25/2022] Open
Abstract
Chronic myeloid leukemia (CML) is a myeloproliferative neoplasm characterized by the presence of BCR-ABL1 transcript as a result of reciprocal translocation between chromosome 9 and 22. The most common transcripts subtypes are e13a2 (b2a2) and e14a2 (b3a2). The prognostic impact of the type of BCR-ABL1 transcript has been the subject of controversies over time. In the imatinib era, several studies have suggested a deeper and faster response in patients expressing e14a2. However, the impact on response after first line therapy with a second-generation tyrosine kinase inhibitor, nilotinib, is unknown. We retrospectively evaluated 118 patients newly diagnosed with chronic phase CML and treated frontline with nilotinib inside or outside clinical trial in five French centers. Only patients expressing e14a2 or e13a2 transcripts alone were analyzed. At baseline, 55.3% expressed e14a2, 44.7% expressed e13a2. The median age was 51 years and median follow-up was 49 months. Relative risks of CML at diagnosis were similar according to the ELTS score (p = .87). Complete hematological response and complete cytogenetic response rates were similar among groups. Patients expressing e14a2 transcripts compared to e13a2 transcripts had deeper and faster molecular responses, when considering MMR (100% vs 84.1%, p = .007) with a median time of 6.7 and 17.1 months or MR4.5 (100% vs 59.9%, p = .005) with a median time of 39.7 and 70.9 months, respectively. A sustained treatment free remission was observed in 10/10 patients with e14a2 versus 1/3 with e13a2 transcript (p = .04). In conclusion, even treated with nilotinib first line, patients with chronic phase CML expressing BCR-ABL1 e13a2 transcript have a lower rate of deep molecular responses.
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Qin J, Shen X, Zhang J, Jia D. Allosteric inhibitors of the STAT3 signaling pathway. Eur J Med Chem 2020; 190:112122. [DOI: 10.1016/j.ejmech.2020.112122] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 02/04/2020] [Accepted: 02/04/2020] [Indexed: 01/13/2023]
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In Ph+BCR-ABL1 P210+ acute lymphoblastic leukemia the e13a2 (B2A2) transcript is prevalent. Leukemia 2019; 34:929-931. [PMID: 31595038 DOI: 10.1038/s41375-019-0591-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 09/11/2019] [Accepted: 09/25/2019] [Indexed: 01/04/2023]
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10
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One-step discrimination of BCR/ABLp210 transcript isoforms directly from RNA extraction with fusion-triggered rolling circle amplification. Anal Chim Acta 2019; 1067:129-136. [DOI: 10.1016/j.aca.2019.03.055] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Revised: 03/19/2019] [Accepted: 03/28/2019] [Indexed: 11/19/2022]
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Greenfield G, McMullan R, Robson N, McGimpsey J, Catherwood M, McMullin MF. Response to Imatinib therapy is inferior for e13a2 BCR-ABL1 transcript type in comparison to e14a2 transcript type in chronic myeloid leukaemia. BMC HEMATOLOGY 2019; 19:7. [PMID: 31073408 PMCID: PMC6498698 DOI: 10.1186/s12878-019-0139-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Accepted: 04/08/2019] [Indexed: 11/14/2022]
Abstract
Background The BCR-ABL1 fusion gene underlying the pathogenesis of CML can arise from a variety of breakpoints. The e13a2 and e14a2 transcripts formed by breakpoints occurring around exon 13 and exon 14 of the BCR gene respectively are the most common. Methods We undertook a retrospective audit using local laboratory database and electronic patient care records of 69 CML patients with an e13a2 or e14a2 transcript type identified in our regional population. Results The e13a2 group was on average significantly younger (45.0 years v 54.5 years), had a higher average white cell count (189.8 × 109/l v 92.40 × 109/l) and lower platelet count (308 × 109/l v 644 × 109/l) in comparison to the e14a2 group suggesting that these are distinct biological entities. Over an average follow-up of 33.8 months and 27.2 months for the e13a2 and e14a2 groups we observed an inferior molecular response to imatinib in the e13a2 group. A significantly lower number of patients in the e13a2 arm met European Leukemia Net criteria for optimal response at 12 months therapy (17.64% v 50.0%) and were slower to obtain deep molecular responses MR4 or MR4.5. Conclusion Patients with an e13a2 transcript demonstrate an inferior molecular response to imatinib in our regional population.
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Affiliation(s)
- Graeme Greenfield
- 1Centre for Cancer Research and Cell Biology, Queen's University Belfast, 97 Lisburn Rd, Belfast, BT9 7NN UK
| | - Ross McMullan
- 2Department of Haematology, Belfast City Hospital, Belfast, UK
| | - Nuala Robson
- 2Department of Haematology, Belfast City Hospital, Belfast, UK
| | - Julie McGimpsey
- 2Department of Haematology, Belfast City Hospital, Belfast, UK
| | - Mark Catherwood
- 2Department of Haematology, Belfast City Hospital, Belfast, UK
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de Almeida Filho TP, Maia Filho PA, Barbosa MC, Dutra LLA, Castro MFD, Duarte FB, Quixadá ATDS, Lemes RPG. Does BCR-ABL transcript type influence the prognosis of patients in chronic myelogenous leukemia chronic phase? Hematol Transfus Cell Ther 2019; 41:114-118. [PMID: 31079657 PMCID: PMC6517615 DOI: 10.1016/j.htct.2018.10.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 10/04/2018] [Accepted: 10/15/2018] [Indexed: 12/23/2022] Open
Abstract
Introduction and objective In this study, we evaluated the influence of the transcript type on hematological and clinical parameters, as well as the event-free survival of 50 patients in the Chronic myeloid leukemia chronic phase. Methods We reviewed the medical records of 55 patients with Chronic myeloid leukemia. The eligibility criteria were based on the availability of hematological and clinical baseline data in the medical records. Data on BCR-ABL transcripts were obtained from medical records. Results Eighteen patients (36%) had the b2a2 transcript, 24 (48%) had b3a2 and 8 (16%) had b2a2/b3a2. The median platelet count for transcripts b2a2, b3a2 and b2a2/b3a2 was 320.65 × 103/L, 396 × 103/L, and 327.05 × 103/L, respectively (p = 0.896). We could not find any differences in relation to the other hematological parameters, when compared to the transcript type. Comparison between spleen and liver size and type of transcript did not differ inside the groups (p = 0.395 and p = 0.647, respectively) and the association between risk scores and transcript type did not show statistical significance (p > 0.05). The 21-month probability for event-free survival was 21%, 48% and 66% for the transcripts b2a2, b3a2 and b2a2/b3a2 respectively (p = 0.226) Conclusion We conclude that the expression BCR-ABL transcripts have no influence on hematological, clinical and event-free survival parameters of patients in the Chronic myeloid leukemia chronic phase.
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Affiliation(s)
- T P de Almeida Filho
- Departament of Hematology, Walter Cantidio University Hospital, Fortaleza, Ceara Brazil.
| | - P A Maia Filho
- Departament of Hematology, Walter Cantidio University Hospital, Fortaleza, Ceara Brazil
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13
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The proportion of different BCR-ABL1 transcript types in chronic myeloid leukemia. An international overview. Leukemia 2019; 33:1173-1183. [PMID: 30675008 DOI: 10.1038/s41375-018-0341-4] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Accepted: 11/28/2018] [Indexed: 01/31/2023]
Abstract
There are different BCR-ABL1 fusion genes that are translated into proteins that are different from each other, yet all leukemogenic, causing chronic myeloid leukemia (CML) or acute lymphoblastic leukemia. Their frequency has never been systematically investigated. In a series of 45503 newly diagnosed CML patients reported from 45 countries, it was found that the proportion of e13a2 (also known as b2a2) and of e14a2 (also known as b3a2), including the cases co-expressing e14a2 and e13a2, was 37.9% and 62.1%, respectively. The proportion of these two transcripts was correlated with gender, e13a2 being more frequent in males (39.2%) than in females (36.2%), was correlated with age, decreasing from 39.6% in children and adolescents down to 31.6% in patients ≥ 80 years old, and was not constant worldwide. Other, rare transcripts were reported in 666/34561 patients (1.93%). The proportion of rare transcripts was associated with gender (2.27% in females and 1.69% in males) and with age (from 1.79% in children and adolescents up to 3.84% in patients ≥ 80 years old). These data show that the differences in proportion are not by chance. This is important, as the transcript type is a variable that is suspected to be of prognostic importance for response to treatment, outcome of treatment, and rate of treatment-free remission.
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Ercaliskan A, Eskazan AE. The impact ofBCR-ABL1transcript type on tyrosine kinase inhibitor responses and outcomes in patients with chronic myeloid leukemia. Cancer 2018; 124:3806-3818. [DOI: 10.1002/cncr.31408] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Revised: 03/09/2018] [Accepted: 03/26/2018] [Indexed: 12/27/2022]
Affiliation(s)
- Abdulkadir Ercaliskan
- Division of Hematology, Department of Internal Medicine, Faculty of Medicine; Marmara University; Istanbul Turkey
| | - A. Emre Eskazan
- Division of Hematology, Department of Internal Medicine, Cerrahpasa Faculty of Medicine; Istanbul University; Istanbul Turkey
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Reichert M. Proteome analysis of sheep B lymphocytes in the course of bovine leukemia virus-induced leukemia. Exp Biol Med (Maywood) 2017; 242:1363-1375. [PMID: 28436273 DOI: 10.1177/1535370217705864] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Presented are the results of a study of the expression pattern of different proteins in the course of bovine leukemia virus-induced leukemia in experimental sheep and I discuss how the obtained data may be useful in gaining a better understanding of the pathogenesis of the disease, diagnosis, and for the selection of possible therapeutic targets. In cattle, the disease is characterized by life-long persistent lymphocytosis leading to leukemia/lymphoma in about 5% of infected animals. In sheep, as opposed to cattle, the course of the disease is always fatal and clinical symptoms usually occur within a three-year period after infection. For this reason, sheep are an excellent experimental model of retrovirus-induced leukemia. This model can be useful for human pathology, as bovine leukemia virus is closely related to human T-lymphotropic virus type 1. The data presented here provide novel insights into the molecular mechanisms of the bovine leukemia virus-induced tumorigenic process and indicate the potential marker proteins both for monitoring progression of the disease and as possible targets of pharmacological intervention. A study of the proteome of B lymphocytes from four leukemic sheep revealed 11 proteins with altered expression. Among them, cytoskeleton and intermediate filament proteins were the most abundant, although proteins belonging to the other functional groups, i.e. enzymes, regulatory proteins, and transcription factors, were also present. It was found that trypsin inhibitor, platelet factor 4, thrombospondin 1, vasodilator-stimulated phosphoprotein, fibrinogen alpha chain, zyxin, filamin-A, and vitamin D-binding protein were downregulated, whereas cleavage and polyadenylation specificity factor subunit 5, non-POU domain-containing octamer-binding protein and small glutamine-rich tetratricopeptide repeat-containing protein alpha were upregulated. Discussed are the possible mechanisms of their altered expression and its significance in the bovine leukemia virus-induced leukemogenic process. Impact statement The submitted manuscript provides new data on the molecular mechanisms of BLV-induced tumorigenic process indicating the potential marker proteins both for monitoring the progression of the disease and as possible targets of pharmacological intervention. This is to my knowledge the first study of the proteome of the transformed lymphocytes in the course of bovine leukemia virus-induced leukemia in susceptible animals. BLV can be considered as useful model for related human pathogen - HTLV-1, another member of the deltaretrovirus genus evolutionary closely related to BLV. Information gathered in this study can be useful to speculate on possible shared mechanisms of deltaretrovirus-induced carcinogenesis.
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Affiliation(s)
- Michal Reichert
- Department of Pathology, National Veterinary Research Institute, Pulawy 24-100, Poland
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Arun AK, Senthamizhselvi A, Mani S, Vinodhini K, Janet NB, Lakshmi KM, Abraham A, George B, Srivastava A, Srivastava VM, Mathews V, Balasubramanian P. Frequency of rare BCR-ABL1 fusion transcripts in chronic myeloid leukemia patients. Int J Lab Hematol 2016; 39:235-242. [PMID: 28035733 DOI: 10.1111/ijlh.12616] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Accepted: 11/24/2016] [Indexed: 11/30/2022]
Abstract
INTRODUCTION The hallmark of chronic myeloid leukemia (CML) is the presence of Philadelphia chromosome, its resultant fusion transcript (BCR-ABL1), and fusion protein (p210). Alternate breakpoints in BCR (m-bcr, μ-bcr, and others) or ABL1 result in the expression of few rare fusion transcripts (e19a2, e1a2, e13a3, e14a3) and fusion proteins (p190, p200, p225) whose exact clinical significance remains to be determined. METHODS Our study was designed to determine the type and frequency of BCR-ABL1 fusion transcripts in 1260 CML patients and to analyze the prognosis and treatment response in patients harboring rare BCR-ABL1 fusion transcripts. RESULTS The frequency of various BCR-ABL1 fusion transcripts was as follows: e14a2 (60%), e13a2 (34.3%), e1a2 (1.2%), e1a2 + e13a2 (2.0%), e1a2 + e14a2 (1.8%), e19a2 (0.3%), and e14a3 (0.3%). CML patients with e1a2 transcripts had higher rates of disease progression, resistance, or suboptimal response to imatinib and failed to achieve major molecular response. CONCLUSION Characterization of the specific fusion transcript in CML patients is important owing to the difference in prognosis and response to therapy in addition to the conventional need for monitoring treatment response. CML patients with e1a2 transcripts have to be closely monitored due to the high incidence of disease progression and treatment resistance/failure.
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Affiliation(s)
- A K Arun
- Department of Haematology, Christian Medical College, Vellore, India
| | - A Senthamizhselvi
- Department of Haematology, Christian Medical College, Vellore, India
| | - S Mani
- Department of Haematology, Christian Medical College, Vellore, India
| | - K Vinodhini
- Department of Haematology, Christian Medical College, Vellore, India
| | - N B Janet
- Department of Haematology, Christian Medical College, Vellore, India
| | - K M Lakshmi
- Department of Haematology, Christian Medical College, Vellore, India
| | - A Abraham
- Department of Haematology, Christian Medical College, Vellore, India
| | - B George
- Department of Haematology, Christian Medical College, Vellore, India
| | - A Srivastava
- Department of Haematology, Christian Medical College, Vellore, India
| | - V M Srivastava
- Cytogenetics Unit, Christian Medical College, Vellore, India
| | - V Mathews
- Department of Haematology, Christian Medical College, Vellore, India
| | - P Balasubramanian
- Department of Haematology, Christian Medical College, Vellore, India
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De Braekeleer M. BCR-ABL1 b3a2 and b2a2 transcripts in chronic myeloid leukemia: does it matter? Eur J Haematol 2016. [PMID: 26208040 DOI: 10.1111/ejh.12639] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Marc De Braekeleer
- Laboratoire d'Histologie, Embryologie et Cytogénétique, Faculté de Médecine et des Sciences de la Santé, Université de Brest, Brest, France.,Institut National de la Santé et de la Recherche Médicale (INSERM), U1078, Brest, France.,Service de Cytogénétique et Biologie de la Reproduction, Hôpital Morvan, CHRU Brest, Brest, France
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18
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Impact of BCR-ABL transcript type on outcome in patients with chronic-phase CML treated with tyrosine kinase inhibitors. Blood 2016; 127:1269-75. [PMID: 26729897 DOI: 10.1182/blood-2015-10-674242] [Citation(s) in RCA: 109] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Accepted: 12/18/2015] [Indexed: 02/02/2023] Open
Abstract
The most common breakpoint cluster region gene-Abelson murine leukemia viral oncogene homolog 1 (BCR-ABL) transcripts in chronic myeloid leukemia (CML) are e13a2 (b2a2) and e14a2 (b3a2). The impact of the type of transcript on response and survival after initial treatment with different tyrosine kinase inhibitors is unknown. This study involved 481 patients with chronic phase CML expressing various BCR-ABL transcripts. Two hundred patients expressed e13a2 (42%), 196 (41%) expressed e14a2, and 85 (18%) expressed both transcripts. The proportion of patients with e13a2, e14a2, and both achieving complete cytogenetic response at 3 and 6 months was 59%, 67%, and 63% and 73%, 81%, and 82%, respectively, whereas major molecular response rates were 27%, 49%, and 50% at 3 months, 42%, 67%, and 70% at 6 months, and 55%, 83%, and 76% at 12 months, respectively. Median (international scale) levels of transcripts e13a2, e14a2, and both at 3 months were 0.2004, 0.056, and 0.0612 and at 6 months were 0.091, 0.0109, and 0.0130, respectively. In multivariate analysis, e14a2 and both predicted for optimal responses at 3, 6, and 12 months. The type of transcript also predicted for improved probability of event-free (P = .043; e14a2) and transformation-free survival (P = .04 for both). Compared to e13a2 transcripts, patients with e14a2 (alone or with coexpressed e13a2) achieved earlier and deeper responses, predicted for optimal European Leukemia Net (ELN) responses (at 3, 6, and 12 months) and predicted for longer event-free and transformation-free survival.
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Effects of a Particular Heptapeptide on the IFN-α-Sensitive CML Cells. BIOMED RESEARCH INTERNATIONAL 2015; 2015:325026. [PMID: 26421285 PMCID: PMC4569753 DOI: 10.1155/2015/325026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Revised: 07/30/2015] [Accepted: 08/09/2015] [Indexed: 12/03/2022]
Abstract
Using the phage display biopanning technique, we have previously identified a heptapeptide KLWVIPQ which specifically binds to the surface of the IFN-α-sensitive but not the IFN-α-resistant CML cells. The effects of this heptapeptide on the IFN-α-sensitive CML cells were investigated in the present study. IFN-α-sensitive KT-1/A3 and IFN-α-resistant KT-1/A3R CML cells were transfected by pEGFP-KLWVIPQ expression vector and/or induced by IFN-α. WST-1 cell proliferation assay, flow cytometry, and western blotting were performed to determine the effects of this heptapeptide and/or IFN-α on CML cells. The viability of the KT-1/A3 cells was inhibited and apoptosis was induced by either expression of the heptapeptide KLWVIPQ or IFN-α treatment with concurrent upregulation of P53 and downregulation of P210bcr/abl. However, these effects were not observed in the IFN-α-resistant KT-1/A3R cells. These results suggest that the heptapeptide KLWVIPQ shares a similar mechanism with IFN-α in the regulation of CML cell growth and apoptosis, implying that the heptapeptide KLWVIPQ could be a novel target to go further into mechanisms of IFN-α sensitivity and/or resistance in CML.
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Lin HX, Sjaarda J, Dyck J, Stringer R, Hillis C, Harvey M, Carter R, Ainsworth P, Leber B, Pare G, Sadikovic B. Gender andBCR-ABLtranscript type are correlated with molecular response to imatinib treatment in patients with chronic myeloid leukemia. Eur J Haematol 2015; 96:360-6. [DOI: 10.1111/ejh.12597] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/26/2015] [Indexed: 11/28/2022]
Affiliation(s)
- Han-Xin Lin
- Department of Pathology and Molecular Medicine; McMaster University; Hamilton ON Canada
- Hamilton Regional Laboratory Medicine Program; Hamilton Health Science; Hamilton ON Canada
| | - Jenny Sjaarda
- Department of Pathology and Molecular Medicine; McMaster University; Hamilton ON Canada
| | - Jocob Dyck
- Department of Pathology and Molecular Medicine; McMaster University; Hamilton ON Canada
| | - Randa Stringer
- Department of Pathology and Molecular Medicine; McMaster University; Hamilton ON Canada
| | - Chris Hillis
- Department of Oncology; McMaster University; Juravinski Hospital; Hamilton ON Canada
| | - Maria Harvey
- Hamilton Regional Laboratory Medicine Program; Hamilton Health Science; Hamilton ON Canada
| | - Ronald Carter
- Department of Pathology and Molecular Medicine; McMaster University; Hamilton ON Canada
- Hamilton Regional Laboratory Medicine Program; Hamilton Health Science; Hamilton ON Canada
| | - Peter Ainsworth
- Department of Pathology and Laboratory Medicine; Western University; London ON Canada
- Molecular Genetics Laboratory; London Health Sciences Centre; London ON Canada
| | - Brian Leber
- Department of Oncology; McMaster University; Juravinski Hospital; Hamilton ON Canada
| | - Guillaume Pare
- Department of Pathology and Molecular Medicine; McMaster University; Hamilton ON Canada
- Hamilton Regional Laboratory Medicine Program; Hamilton Health Science; Hamilton ON Canada
- Population Health Research Institute; Hamilton Health Sciences; McMaster University; McMaster University; Hamilton ON Canada
- Population Genomics Program; Chanchlani Research Centre; McMaster University; McMaster University; Hamilton ON Canada
- Department of Clinical Epidemiology and Biostatistics; McMaster University; McMaster University; Hamilton ON Canada. Thrombosis and Atherosclerosis Research Institute; Hamilton Health Sciences; McMaster University; Hamilton ON Canada
| | - Bekim Sadikovic
- Department of Pathology and Molecular Medicine; McMaster University; Hamilton ON Canada
- Department of Pathology and Laboratory Medicine; Western University; London ON Canada
- Molecular Genetics Laboratory; London Health Sciences Centre; London ON Canada
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Jung JH, Yun M, Choo EJ, Kim SH, Jeong MS, Jung DB, Lee H, Kim EO, Kato N, Kim B, Srivastava SK, Kaihatsu K, Kim SH. A derivative of epigallocatechin-3-gallate induces apoptosis via SHP-1-mediated suppression of BCR-ABL and STAT3 signalling in chronic myelogenous leukaemia. Br J Pharmacol 2015; 172:3565-78. [PMID: 25825203 DOI: 10.1111/bph.13146] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Revised: 03/15/2015] [Accepted: 03/23/2015] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND AND PURPOSE Epigallocatechin-3-gallate (EGCG) is a component of green tea known to have chemo-preventative effects on several cancers. However, EGCG has limited clinical application, which necessitates the development of a more effective EGCG prodrug as an anticancer agent. EXPERIMENTAL APPROACH Derivatives of EGCG were evaluated for their stability and anti-tumour activity in human chronic myeloid leukaemia (CML) K562 and KBM5 cells. KEY RESULTS EGCG-mono-palmitate (EGCG-MP) showed most prolonged stability compared with other EGCG derivatives. EGCG-MP exerted greater cytotoxicity and apoptosis in K562 and KBM5 cells than the other EGCG derivatives. EGCG-MP induced Src-homology 2 domain-containing tyrosine phosphatase 1 (SHP-1) leading decreased oncogenic protein BCR-ABL and STAT3 phosphorylation in CML cells, compared with treatment with EGCG. Furthermore, EGCG-MP reduced phosphorylation of STAT3 and survival genes in K562 cells, compared with EGCG. Conversely, depletion of SHP-1 or application of the tyrosine phosphatase inhibitor pervanadate blocked the ability of EGCG-MP to suppress phosphorylation of BCR-ABL and STAT3, and the expression of survival genes downstream of STAT3. In addition, EGCG-MP treatment more effectively suppressed tumour growth in BALB/c athymic nude mice compared with untreated controls or EGCG treatment. Immunohistochemistry revealed increased caspase 3 and SHP-1 activity and decreased phosphorylation of BCR-ABL in the EGCG-MP-treated group relative to that in the EGCG-treated group. CONCLUSIONS AND IMPLICATIONS EGCG-MP induced SHP-1-mediated inhibition of BCR-ABL and STAT3 signalling in vitro and in vivo more effectively than EGCG. This derivative may be a potent chemotherapeutic agent for CML treatment.
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Affiliation(s)
- Ji Hoon Jung
- College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Miyong Yun
- College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Eun-Jeong Choo
- College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Sun-Hee Kim
- College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Myoung-Seok Jeong
- College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Deok-Beom Jung
- College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Hyemin Lee
- College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Eun-Ok Kim
- College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Nobuo Kato
- The Institute of Scientific and Industrial Research, Osaka University, Osaka, Japan
| | - Bonglee Kim
- College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Sanjay K Srivastava
- Department of Biomedical Sciences and Cancer Biology Center, Texas Tech University Health Sciences Center, Amarillo, TX, USA
| | - Kunihiro Kaihatsu
- The Institute of Scientific and Industrial Research, Osaka University, Osaka, Japan
| | - Sung-Hoon Kim
- College of Korean Medicine, Kyung Hee University, Seoul, South Korea
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