1
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Okabe S, Moriyama M, Gotoh A. Combination of an aurora kinase inhibitor and the ABL tyrosine kinase inhibitor asciminib against ABL inhibitor-resistant CML cells. Med Oncol 2024; 41:142. [PMID: 38714583 PMCID: PMC11076330 DOI: 10.1007/s12032-024-02394-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Accepted: 04/24/2024] [Indexed: 05/10/2024]
Abstract
The development of BCR::ABL1-targeting tyrosine kinase inhibitors (TKIs) has improved the prognosis of patients with chronic myeloid leukemia (CML). However, resistance to ABL TKIs can develop in CML patients due to BCR::ABL1 point mutations and CML leukemia stem cell (LSC). Aurora kinases are essential kinases for cell division and regulate mitosis, especially the process of chromosomal segregation. Aurora kinase members also promote cancer cell survival and proliferation. This study analyzed whether aurora kinases were regulated in the progression of CML. It also evaluated the efficacy of the ABL TKI asciminib and the aurora kinase inhibitor LY3295668. The expressions of AURKA and AURKB were higher in the CML cells compared with normal cells using a public database (GSE100026). Asciminib or LY3295668 alone inhibited CML cells after 72 h, and cellular cytotoxicity was increased. The combined use of Asciminib and LY3295668 increased superior efficacy compared with either drug alone. Colony formation was reduced by cotreatment with asciminib and LY3295668. In the cell-cycle analyses, LY3295668 induced G2/M arrest. Cell populations in the sub-G1 phase were observed when cotreating with asciminib and LY3295668. The combination treatment also changed the mitochondrial membrane potential. In addition, AURKA shRNA transfectant cells had increased asciminib sensitivity. Combining asciminib and aurora kinase inhibition enhanced the efficacy and is proposed as a new therapeutic option for patients with CML. These findings have clinical implications for a potential novel therapeutic strategy for CML patients.
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MESH Headings
- Humans
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/drug therapy
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/pathology
- Drug Resistance, Neoplasm/drug effects
- Protein Kinase Inhibitors/pharmacology
- Aurora Kinase A/antagonists & inhibitors
- Cell Line, Tumor
- Fusion Proteins, bcr-abl/antagonists & inhibitors
- Fusion Proteins, bcr-abl/genetics
- Aurora Kinase B/antagonists & inhibitors
- Apoptosis/drug effects
- Antineoplastic Combined Chemotherapy Protocols/pharmacology
- Cell Proliferation/drug effects
- Tyrosine Kinase Inhibitors
- Niacinamide/analogs & derivatives
- Pyrazoles
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Affiliation(s)
- Seiichi Okabe
- Department of Hematology, Tokyo Medical University, 6-7-1 Nishi-Shinjuku, Shinjuku-Ku, Tokyo, 160-0023, Japan.
| | - Mitsuru Moriyama
- Department of Hematology, Tokyo Medical University, 6-7-1 Nishi-Shinjuku, Shinjuku-Ku, Tokyo, 160-0023, Japan
| | - Akihiko Gotoh
- Department of Hematology, Tokyo Medical University, 6-7-1 Nishi-Shinjuku, Shinjuku-Ku, Tokyo, 160-0023, Japan
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2
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Okabe S, Gotoh A. Effect of asciminib and vitamin K2 on Abelson tyrosine-kinase-inhibitor-resistant chronic myelogenous leukemia cells. BMC Cancer 2023; 23:827. [PMID: 37670241 PMCID: PMC10478393 DOI: 10.1186/s12885-023-11304-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Accepted: 08/16/2023] [Indexed: 09/07/2023] Open
Abstract
BACKGROUND Abelson (ABL) tyrosine kinase inhibitors (TKIs) are effective against chronic myeloid leukemia (CML); however, many patients develop resistance during ABL TKI therapy. Vitamin K2 (VK2) is a crucial fat-soluble vitamin used to activate hepatic coagulation factors and treat osteoporosis. Although VK2 has demonstrated impressive anticancer activity in various cancer cell lines, it is not known whether VK2 enhances the effects of asciminib, which specifically targets the ABL myristoyl pocket (STAMP) inhibitor. METHOD In this work, we investigated whether VK2 contributed to the development of CML cell lines. We also investigated the efficacy of asciminib and VK2 by using K562, ponatinib-resistant K562 (K562 PR), Ba/F3 BCR-ABL, and T315I point mutant Ba/F3 (Ba/F3 T315I) cells. RESULTS Based on data from the Gene Expression Omnibus (GEO) database, gamma-glutamyl carboxylase (GGCX) and vitamin K epoxide reductase complex subunit 1 (VKORC1) were elevated in imatinib-resistant patients (GSE130404). UBIA Prenyltransferase Domain Containing 1 (UBIAD1) was decreased, and K562 PR cells were resistant to ponatinib. In contrast, asciminib inhibited CML cells and ponatinib resistance in a dose-dependent manner. CML cells were suppressed by VK2. Caspase 3/7 activity was also elevated, as was cellular cytotoxicity. Asciminib plus VK2 therapy induced a significantly higher level of cytotoxicity than use of each drug alone. Asciminib and VK2 therapy altered the mitochondrial membrane potential. CONCLUSIONS Asciminib and VK2 are suggested as a novel treatment for ABL-TKI-resistant cells since they increase treatment efficacy. Additionally, this treatment option has intriguing clinical relevance for patients who are resistant to ABL TKIs.
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Affiliation(s)
- Seiichi Okabe
- Department of Hematology, Tokyo Medical University, 6-7-1 Nishi-shinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan.
| | - Akihiko Gotoh
- Department of Hematology, Tokyo Medical University, 6-7-1 Nishi-shinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
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3
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Design, synthesis and antitumor evaluation of 3-chloro-4 - (pyridin-2-ylmethoxy) aniline derivatives as BCR-ABL kinase. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.135154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
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4
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Sevdali E, Block V, Lataretu M, Li H, Smulski CR, Briem JS, Heitz Y, Fischer B, Ramirez NJ, Grimbacher B, Jäck HM, Voll RE, Hölzer M, Schneider P, Eibel H. BAFFR activates PI3K/AKT signaling in human naive but not in switched memory B cells through direct interactions with B cell antigen receptors. Cell Rep 2022; 39:111019. [PMID: 35767961 DOI: 10.1016/j.celrep.2022.111019] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 04/27/2022] [Accepted: 06/08/2022] [Indexed: 12/28/2022] Open
Abstract
Binding of BAFF to BAFFR activates in mature B cells PI3K/AKT signaling regulating protein synthesis, metabolic fitness, and survival. In humans, naive and memory B cells express the same levels of BAFFR, but only memory B cells seem to survive without BAFF. Here, we show that BAFF activates PI3K/AKT only in naive B cells and changes the expression of genes regulating migration, proliferation, growth, and survival. BAFF-induced PI3K/AKT activation requires direct interactions between BAFFR and the B cell antigen receptor (BCR) components CD79A and CD79B and is enhanced by the AKT coactivator TCL1A. Compared to memory B cells, naive B cells express more surface BCRs, which interact better with BAFFR than IgG or IgA, thus allowing stronger responses to BAFF. As ablation of BAFFR in naive and memory B cells causes cell death independent of BAFF-induced signaling, BAFFR seems to act also as an intrinsic factor for B cell survival.
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Affiliation(s)
- Eirini Sevdali
- Department of Rheumatology and Clinical Immunology, Medical Center - University of Freiburg, Hugstetterstr. 55, 79106 Freiburg, Germany; Faculty of Medicine, University of Freiburg, Breisacherstr. 153, 79110 Freiburg, Germany; Center for Chronic Immunodeficiency, Medical Center - University of Freiburg, Breisacherstr. 115, 79106 Freiburg, Germany
| | - Violeta Block
- Department of Rheumatology and Clinical Immunology, Medical Center - University of Freiburg, Hugstetterstr. 55, 79106 Freiburg, Germany; Faculty of Medicine, University of Freiburg, Breisacherstr. 153, 79110 Freiburg, Germany; Center for Chronic Immunodeficiency, Medical Center - University of Freiburg, Breisacherstr. 115, 79106 Freiburg, Germany
| | - Marie Lataretu
- RNA Bioinformatics and High-Throughput Analysis, Faculty of Mathematics and Computer Science, University of Jena, Leutragraben 1, 07743 Jena, Germany
| | - Huiying Li
- Department of Rheumatology and Clinical Immunology, Medical Center - University of Freiburg, Hugstetterstr. 55, 79106 Freiburg, Germany; Faculty of Medicine, University of Freiburg, Breisacherstr. 153, 79110 Freiburg, Germany; Center for Chronic Immunodeficiency, Medical Center - University of Freiburg, Breisacherstr. 115, 79106 Freiburg, Germany
| | - Cristian R Smulski
- Medical Physics Department, Centro Atómico Bariloche, Comisión Nacional de Energía Atómica (CNEA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Avenida E-Bustillo 9500, R8402AGP Río Negro, San Carlos de Bariloche, Argentina
| | - Jana-Susann Briem
- Department of Rheumatology and Clinical Immunology, Medical Center - University of Freiburg, Hugstetterstr. 55, 79106 Freiburg, Germany; Faculty of Medicine, University of Freiburg, Breisacherstr. 153, 79110 Freiburg, Germany; Center for Chronic Immunodeficiency, Medical Center - University of Freiburg, Breisacherstr. 115, 79106 Freiburg, Germany
| | - Yannic Heitz
- Department of Rheumatology and Clinical Immunology, Medical Center - University of Freiburg, Hugstetterstr. 55, 79106 Freiburg, Germany; Faculty of Medicine, University of Freiburg, Breisacherstr. 153, 79110 Freiburg, Germany; Center for Chronic Immunodeficiency, Medical Center - University of Freiburg, Breisacherstr. 115, 79106 Freiburg, Germany
| | - Beate Fischer
- Department of Rheumatology and Clinical Immunology, Medical Center - University of Freiburg, Hugstetterstr. 55, 79106 Freiburg, Germany; Faculty of Medicine, University of Freiburg, Breisacherstr. 153, 79110 Freiburg, Germany; Center for Chronic Immunodeficiency, Medical Center - University of Freiburg, Breisacherstr. 115, 79106 Freiburg, Germany
| | - Neftali-Jose Ramirez
- Faculty of Medicine, University of Freiburg, Breisacherstr. 153, 79110 Freiburg, Germany; Center for Chronic Immunodeficiency, Medical Center - University of Freiburg, Breisacherstr. 115, 79106 Freiburg, Germany; Institute for Immunodeficiency, Medical Center - University of Freiburg, Breisacherstr. 115, 79106 Freiburg, Germany
| | - Bodo Grimbacher
- Faculty of Medicine, University of Freiburg, Breisacherstr. 153, 79110 Freiburg, Germany; Center for Chronic Immunodeficiency, Medical Center - University of Freiburg, Breisacherstr. 115, 79106 Freiburg, Germany; Institute for Immunodeficiency, Medical Center - University of Freiburg, Breisacherstr. 115, 79106 Freiburg, Germany
| | - Hans-Martin Jäck
- Department of Medicine, Division of Immunology, University of Erlangen, Glückstraße 6, 91054 Erlangen, Germany
| | - Reinhard E Voll
- Department of Rheumatology and Clinical Immunology, Medical Center - University of Freiburg, Hugstetterstr. 55, 79106 Freiburg, Germany; Faculty of Medicine, University of Freiburg, Breisacherstr. 153, 79110 Freiburg, Germany; Center for Chronic Immunodeficiency, Medical Center - University of Freiburg, Breisacherstr. 115, 79106 Freiburg, Germany
| | - Martin Hölzer
- Methodology and Research Infrastructure, MF1 Bioinformatics, Robert Koch Institute, Nordufer 20, 13353 Berlin, Germany
| | - Pascal Schneider
- Department of Biochemistry, University of Lausanne, Ch. des Boveresses 155, 1066 Epalinges, Switzerland
| | - Hermann Eibel
- Department of Rheumatology and Clinical Immunology, Medical Center - University of Freiburg, Hugstetterstr. 55, 79106 Freiburg, Germany; Faculty of Medicine, University of Freiburg, Breisacherstr. 153, 79110 Freiburg, Germany; Center for Chronic Immunodeficiency, Medical Center - University of Freiburg, Breisacherstr. 115, 79106 Freiburg, Germany.
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5
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Chen X, Du Q, Guo H, He Q, Yang B, Ding L. Bafetinib Suppresses the Transcription of PD-L1 Through c-Myc in Lung Cancer. Front Pharmacol 2022; 13:897747. [PMID: 35721177 PMCID: PMC9201485 DOI: 10.3389/fphar.2022.897747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Accepted: 04/28/2022] [Indexed: 11/13/2022] Open
Abstract
Given the limitations of the existing antibody-based therapies, including immune-related adverse events, poor response rates, and intravenous route of dosing, small molecules inhibitors targeting PD-L1 are highly desirable. By cell-based screening, we found that tyrosine kinase inhibitor Bafetinib dramatically suppresses PD-L1 protein expression in a dose-dependent manner. In parallel, cell membrane PD-L1 is also reduced by Bafetinib. We confirm that Bafetinib doesn’t affect the protein half-life of PD-L1 but significantly inhibits the transcription of PD-L1. Among the transcription factors that regulate PD-L1 expression, c-Myc is downregulated by Bafetinib. Bafetinib caused PD-L1 inhibition is abolished when c-Myc is knocked-down. Further, we identified that Bafetinib reduced c-Myc expression because of transcription inhibition. By using the CT26 tumor model, we further confirm that Bafetinib suppressed PD-L1 expression in vivo. In conclusion, our study shows that Bafetinib inhibits the transcription of PD-L1 through transcription factor c-Myc, suggesting that Bafetinib might be a small molecule drug targeting PD-L1.
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Affiliation(s)
- Xi Chen
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, Institute of Pharmacology and Toxicology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Qianqian Du
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, Institute of Pharmacology and Toxicology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Hongjie Guo
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, Institute of Pharmacology and Toxicology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Qiaojun He
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, Institute of Pharmacology and Toxicology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China.,The Innovation Institute for Artificial Intelligence in Medicine, Zhejiang University, Hangzhou, China
| | - Bo Yang
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, Institute of Pharmacology and Toxicology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China.,The Innovation Institute for Artificial Intelligence in Medicine, Zhejiang University, Hangzhou, China
| | - Ling Ding
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, Institute of Pharmacology and Toxicology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
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6
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Salter B, Burns I, Fuller K, Eshaghpour A, Lionel AC, Crowther M. Tyrosine kinase inhibitors and tumor lysis syndrome in hematologic malignancies: A systemic review. Eur J Haematol 2022; 109:166-181. [PMID: 35531791 DOI: 10.1111/ejh.13786] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 04/28/2022] [Accepted: 05/03/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND Effective treatments for hematologic malignancies include therapies that target tyrosine kinase (TK) signaling pathways. Tumor lysis syndrome (TLS) is an oncologic emergency that can occur due to rapid turnover following the initiation of treatments for hematologic malignancy. The incidence of TLS is under-reported and it is unclear as to whether TK inhibitors (TKIs) are associated with TLS. OBJECTIVE To conduct a systematic review to determine the incidence of TLS with TKIs. METHODS A search was performed using EMBASE, MEDLINE, and Web of Science electronic databases, as well as a manual search of the American Society of Hematology and American Society of Clinical Oncology abstract databases. Keywords included: "tumor lysis syndrome," "tyrosine kinase inhibitors," "lymphoma," and "leukemia." RESULTS We identified a total of 57 publications that commented on the incidence of TLS with TKIs for hematologic malignancy. Thirty-nine of those publications reported TLS as an adverse event. TLS was described as an adverse event among essentially all the subclasses of TKIs that are used to manage hematologic malignancies. CONCLUSION The overall number of articles commenting on TLS as an adverse event is sparse and there needs to be more transparency regarding the incidence of TLS when employing newer targeted therapies. Physicians should consider the risk of TLS on an individual basis and the added risk of TLS when using TKIs to treat hematologic malignancy.
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Affiliation(s)
| | - Ian Burns
- McMaster University, Hamilton, Ontario, Canada
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7
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Pan X, Liu N, Liu Y, Zhang Q, Wang K, Liu X, Zhang J. Design, synthesis, and biological evaluation of trizole-based heteroaromatic derivatives as Bcr-Abl kinase inhibitors. Eur J Med Chem 2022; 238:114425. [PMID: 35561654 DOI: 10.1016/j.ejmech.2022.114425] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 04/27/2022] [Accepted: 04/28/2022] [Indexed: 01/01/2023]
Abstract
Bcr-Abl is a key driver in the pathophysiology of CML. Broadening the chemical diversity of Bcr-Abl kinase inhibitors to overcome drug resistance is a current medical demand for CML treatment. As a continuation to our research, a series of compounds with heteroaromatics-trizole scaffold as hinge binding moiety (HBM) were developed as Bcr-Abl inhibitors based on in silico modeling analysis. Biological results indicated that these compounds exhibited a significantly enhanced inhibition against Bcr-AblWT and Bcr-AblT315I in kinases assays, along with improved anti-proliferative activities in leukemia cell assays, compared with previous disclosed compounds. In particular, compounds 9f, 28c, 31, and 44c displayed comparable even better potency with that of Imatinib in enzymatic assay and cell assays including K562 cells and adriamycin-resistant K562/A cells. Moreover, compounds 9f, 28c, and 44c exhibited potent inhibition activities against K562R cells bearing T315I mutant with IC50 of 13.35 μM, 40.14 μM, and 1.91 μM, respectively, outperforming that of Imatinib. Meanwhile, the inhibition of Bcr-Abl activity in Ba/F3 cells demonstrated that these compounds exerted effects mainly by acting on Bcr-Abl. Additionally, compounds 9f, 28c, and 44c effectively induced apoptosis, arrest the cell cycle at S or G2/M phase, and inhibited phosphorylation of Bcr-Abl and STAT5 in a dose-dependent manner. Docking studies indicated that trizole indeed retained the hydrophobic interaction of aromatic heterocycles with hinge region, and ADME prediction suggested that tested compounds had a favorable safety profile. Therefore, aromatic heterocycles incorporated with trizole could serve as a promising HBM for Bcr-Abl inhibitors with proline as fexibile linker, and compounds 9f, 28c, especially 44c could be served as a starting point for further optimization.
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Affiliation(s)
- Xiaoyan Pan
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, No.76 Yanta West Road, Xi'an, 710061, PR China.
| | - Nanxin Liu
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, No.76 Yanta West Road, Xi'an, 710061, PR China
| | - Yuying Liu
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, No.76 Yanta West Road, Xi'an, 710061, PR China
| | - Qingqing Zhang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, No.76 Yanta West Road, Xi'an, 710061, PR China
| | - Kai Wang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, No.76 Yanta West Road, Xi'an, 710061, PR China
| | - Xueying Liu
- School of Pharmacy, The Fourth Military Medical University, No.169 West Changle Road, Xi'an, 710032, PR China
| | - Jie Zhang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, No.76 Yanta West Road, Xi'an, 710061, PR China
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8
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Pan YL, Zeng SX, Hao RR, Liang MH, Shen ZR, Huang WH. The progress of small-molecules and degraders against BCR-ABL for the treatment of CML. Eur J Med Chem 2022; 238:114442. [PMID: 35551036 DOI: 10.1016/j.ejmech.2022.114442] [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: 04/05/2022] [Revised: 05/01/2022] [Accepted: 05/02/2022] [Indexed: 11/04/2022]
Abstract
Chronic myeloid leukemia (CML) is a malignant disease of the hematopoietic system with crucial pathogenic protein named BCR-ABL, which endangers the life of patients severely. As a milestone of targeted drug, Imatinib has achieved great success in the treatment of CML. Nevertheless, inevitable drug resistance of Imatinib has occurred frequently in clinical due to the several mutations in the BCR-ABL kinase. Subsequently, the second-generation of tyrosine kinase inhibitors (TKIs) against BCR-ABL was developed to address the mutants of Imatinib resistance, except T315I. To date, the third-generation of TKIs targeting T315I has been developed for improving the selectivity and safety. Notably, the first allosteric inhibitor has been in market which could overcome the mutations in ATP binding site effectively. Meanwhile, some advanced technology, such as proteolysis-targeting chimeras (PROTAC) based on different E3 ligand, are highly expected to overcome the drug resistance by selectively degrading the targeted proteins. In this review, we summarized the current research progress of inhibitors and degraders targeting BCR-ABL for the treatment of CML.
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Affiliation(s)
- You-Lu Pan
- Key Laboratory of Neuropsychiatric Drug Research of Zhejiang Province, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Shen-Xin Zeng
- Key Laboratory of Neuropsychiatric Drug Research of Zhejiang Province, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Rong-Rong Hao
- Hangzhou Chinese Academy of Sciences-Hangzhou Medical College Advanced Medical Technology Institute, Zhejiang, China
| | - Mei-Hao Liang
- Key Laboratory of Neuropsychiatric Drug Research of Zhejiang Province, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Zheng-Rong Shen
- Key Laboratory of Neuropsychiatric Drug Research of Zhejiang Province, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Wen-Hai Huang
- Key Laboratory of Neuropsychiatric Drug Research of Zhejiang Province, Hangzhou Medical College, Hangzhou, Zhejiang, China.
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9
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Bcr-Abl drives the formation of Hsp70/Bim PPI to stabilize oncogenic clients and prevent cells from undergoing apoptosis. Biochem Pharmacol 2022; 198:114964. [PMID: 35182521 DOI: 10.1016/j.bcp.2022.114964] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 01/24/2022] [Accepted: 02/10/2022] [Indexed: 11/02/2022]
Abstract
Although tyrosine kinase inhibitors that inhibit Bcr-Abl kinase activity have shown excellent efficacy in the clinical application of CML patients, it still a challenge to discover alternative targets and novel therapies because of the emergence of Bcr-Abl-independent resistance. Most recently, Hsp70/Bim complex was revealed that driven by Bcr-Abl and testified as a specific target for CML because it folds and stabilizes many Hsp70 oncogenic substrates that mediate CML specific signaling pathways. However, the relationship between Bcr-Abl and Hsp70/Bim complex and how the chaperone complex contributes to Bcr-Abl-driven leukemogenic cells remain unclear. Herein, with the help of S1g-2, a specific small-molecule inhibitor of Hsp70/Bim complex, and Bcr-Abl knockdown to induce a panel of cancer cell lines apoptosis, we illustrated that Bcr-Abl could prevent cells from undergoing apoptosis mainly by driving the formation of Hsp70/Bim complex both in Bcr-Abl positive CML cells and ALL cells. Through cell-based Co-immunoprecipitation experiments, we identified that Bcr-Abl could stabilize oncogenic clients including AKT and eIF4E mainly by driving the formation of Hsp70/Bim complex in Bcr-Abl positive cells. Moreover, we identified that Bim mediates interactions of Hsp70 and Bak in Bcr-Abl positive cells. Together, the target identification of Hsp70/Bim complex could make it as a promising anticancer target for Bcr-Abl positive leukemia treatment.
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10
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Kamachi K, Ureshino H, Watanabe T, Yoshida N, Yamamoto Y, Kurahashi Y, Fukuda-Kurahashi Y, Hayashi Y, Hirai H, Yamashita S, Ushijima T, Okada S, Kimura S. Targeting DNMT1 by demethylating agent OR-2100 increases tyrosine kinase inhibitors-sensitivity and depletes leukemic stem cells in chronic myeloid leukemia. Cancer Lett 2022; 526:273-283. [PMID: 34875342 DOI: 10.1016/j.canlet.2021.11.032] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 11/28/2021] [Accepted: 11/30/2021] [Indexed: 12/20/2022]
Abstract
ABL1 tyrosine kinase inhibitors (TKIs) dramatically improve the prognosis of chronic myeloid leukemia (CML), but 10-20% of patients achieve suboptimal responses with low TKIs sensitivity. Furthermore, residual leukemic stem cells (LSCs) are involved in the molecular relapse after TKIs discontinuation. Aberrant DNA hypermethylation contributes to low TKIs sensitivity and the persistence of LSCs in CML. DNMT1 is a key regulator of hematopoietic stem cells, suggesting that aberrant DNA hypermethylation targeting DNMT1 represents a potential therapeutic target for CML. We investigated the efficacy of OR-2100 (OR21), the first orally available single-compound prodrug of decitabine. OR21 exhibited anti-tumor effects as a monotherapy, and in combination therapy it increased TKI-induced apoptosis and induction of tumor suppressor genes including PTPN6 encoding SHP-1 in CML cells. OR21 in combination with imatinib significantly suppressed tumor growth in a xenotransplant model. OR21 and combination therapy decreased the abundance of LSCs and inhibited engraftment in a BCR-ABL1-transduced mouse model. These results demonstrate that targeting DNMT1 using OR21 exerts anti-tumor effects and impairs LSCs in CML. Therefore, combination treatment of TKIs and OR21 represents a promising treatment strategy in CML.
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Affiliation(s)
- Kazuharu Kamachi
- Department of Drug Discovery and Biomedical Sciences, Faculty of Medicine, Saga University, Saga, Japan; Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga, Japan
| | - Hiroshi Ureshino
- Department of Drug Discovery and Biomedical Sciences, Faculty of Medicine, Saga University, Saga, Japan; Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga, Japan.
| | - Tatsuro Watanabe
- Department of Drug Discovery and Biomedical Sciences, Faculty of Medicine, Saga University, Saga, Japan
| | - Nao Yoshida
- Department of Drug Discovery and Biomedical Sciences, Faculty of Medicine, Saga University, Saga, Japan
| | - Yuta Yamamoto
- Department of Drug Discovery and Biomedical Sciences, Faculty of Medicine, Saga University, Saga, Japan
| | - Yuki Kurahashi
- Department of Drug Discovery and Biomedical Sciences, Faculty of Medicine, Saga University, Saga, Japan; OHARA Pharmaceutical Co., Ltd, Japan
| | - Yuki Fukuda-Kurahashi
- Department of Drug Discovery and Biomedical Sciences, Faculty of Medicine, Saga University, Saga, Japan; OHARA Pharmaceutical Co., Ltd, Japan
| | - Yoshihiro Hayashi
- Laboratory of Oncology, School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, Tokyo, Japan
| | - Hideyo Hirai
- Laboratory of Stem Cell Regulation, School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, Tokyo, Japan
| | - Satoshi Yamashita
- Division of Epigenomics, National Cancer Center Research Institute, Tokyo, Japan
| | - Toshikazu Ushijima
- Division of Epigenomics, National Cancer Center Research Institute, Tokyo, Japan
| | - Seiji Okada
- Division of Hematopoiesis, Joint Research Center for Human Retrovirus Infection, Kumamoto University, Kumamoto, Japan
| | - Shinya Kimura
- Department of Drug Discovery and Biomedical Sciences, Faculty of Medicine, Saga University, Saga, Japan; Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga, Japan
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Okabe S, Tanaka Y, Gotoh A. Effect of D-mannose on Philadelphia chromosome-positive leukemia cells. Cancer Biomark 2021; 34:337-346. [PMID: 35001876 DOI: 10.3233/cbm-210141] [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] [Indexed: 01/29/2023]
Abstract
BACKGROUND Although Abelson (ABL) tyrosine kinase inhibitors (TKIs) have demonstrated potency against chronic myeloid leukemia (CML), resistance to ABL TKIs can develop in CML patients after discontinuation of therapy. OBJECTIVE Glucose metabolism may be altered in CML cells because glucose is a key metabolite used by tumor cells. We investigated whether D-mannose treatment induced metabolic changes in CML cells and reduced CML growth in the presence of ABL TKIs. METHODS We investigated whether D-mannose treatment induced metabolic changes in CML cells and reduced CML growth in the presence of ABL TKIs. RESULTS Treatment with D-mannose for 72 h inhibited the growth of K562 cells. Combined treatment using ABL TKIs and D-mannose induced a significantly higher level of cytotoxicity in Philadelphia chromosome (Ph)-positive leukemia cells than in control cells. In the mouse model, severe toxicity was observed as evidenced by body weight loss in the ponatinib and D-mannose combination treatment groups. CONCLUSION Our results indicate that metabolic reprogramming may be a useful strategy against Ph-positive leukemia cells. However, caution should be exercised during clinical applications.
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MESH Headings
- Animals
- Drug Resistance, Neoplasm/genetics
- Humans
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/drug therapy
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/genetics
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/metabolism
- Mannose/pharmacology
- Mannose/therapeutic use
- Mice
- Philadelphia Chromosome
- Protein Kinase Inhibitors/pharmacology
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Ponatinib, Lestaurtinib and mTOR/PI3K inhibitors are promising repurposing candidates against Entamoeba histolytica. Antimicrob Agents Chemother 2021; 66:e0120721. [PMID: 34871094 DOI: 10.1128/aac.01207-21] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Dysentery caused by Entamoeba histolytica affects millions of people annually. Current treatment regimens are based on metronidazole to treat invasive parasites combined with paromomycin for luminal parasites. Issues with treatment include significant side effects, inability to easily treat breastfeeding and pregnant women, the use of two sequential agents, and concern that all therapy is based on nitroimidazole agents with no alternatives if clinical resistance emerges. Thus, the need for new drugs against amebiasis is urgent. To identify new therapeutic candidates, we screened the ReFRAME library (11,948 compounds assembled for Repurposing, Focused Rescue, and Accelerated Medchem) against E. histolytica trophozoites. We identified 159 hits in the primary screen at 10 μM and 46 compounds were confirmed in secondary assays. Overall, 26 were selected as priority molecules for further investigation including 6 FDA approved, 5 orphan designation, and 15 which are currently in clinical trials (3 phase III, 7 phase II and 5 phase I). We found that all 26 compounds are active against metronidazole resistant E. histolytica and 24 are able to block parasite recrudescence after drug removal. Additionally, 14 are able to inhibit encystation and 2 (lestaurtinib and LY-2874455) are active against mature cysts. Two classes of compounds are most interesting for further investigations: the Bcr-Abl TK inhibitors, with the ponatinib (EC50 0.39) as most potent and mTOR or PI3K inhibitors with 8 compounds in clinical development, of which 4 have nanomolar potency. Overall, these are promising candidates and represent a significant advance for drug development against E. histolytica.
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Hoshiko T, Kubota Y, Onodera R, Higashi T, Yokoo M, Motoyama K, Kimura S. Folic Acid-Appended Hydroxypropyl-β-Cyclodextrin Exhibits Potent Antitumor Activity in Chronic Myeloid Leukemia Cells via Autophagic Cell Death. Cancers (Basel) 2021; 13:cancers13215413. [PMID: 34771576 PMCID: PMC8582559 DOI: 10.3390/cancers13215413] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Revised: 10/17/2021] [Accepted: 10/25/2021] [Indexed: 12/29/2022] Open
Abstract
Simple Summary 2-Hydroxypropyl-β-cyclodextrin (HP-β-CyD) is a cyclic oligosaccharide widely used as an excipient in pharmaceutical preparations, in addition to also being used as a cholesterol regulator. HP-β-CyD was used in clinical trials for patients with Niemann-Pick Type C disease to remove accumulated intracellular lipid. HP-β-CyD has anti-leukemia activity by inducing apoptosis and cell-cycle arrest; however, the antitumor activity of HP-β-CyD lacks tumor cell-selectivity. Taking advantage of the fact that folate receptors are highly expressed in many cancer cells, we synthesized folate-appended HP-β-CyD (FA-HP-β-CyD) to confer tumor cell-selectivity to HP-β-CyD. FA-HP-β-CyD inhibited the proliferation of chronic myeloid leukemia (CML) cells and the mechanism underlying the effect of FA-HP-β-CyD in inducing cell death may involve autophagy. The combination of FA-HP-β-CyD and ABL tyrosine kinase inhibitors (imatinib and ponatinib) had a synergistic inhibitory effect on CML cells. In a mouse model of BCR-ABL-induced leukemia, FA-HP-β-CyD had a stronger inhibitory effect on leukemia progression than HP-β-CyD or imatinib. Abstract 2-Hydroxypropyl-β-cyclodextrin (HP-β-CyD) is widely used as an enabling excipient in pharmaceutical formulations. We previously demonstrated that HP-β-CyD disrupted cholesterol homeostasis, and inhibited the proliferation of leukemia cells by inducing apoptosis and cell-cycle arrest. Recently developed drug delivery systems using folic acid (FA) and folic acid receptors (FR) are currently being used in cancer treatment. To confer tumor cell-selectivity to HP-β-CyD, we synthesized folate-appended HP-β-CyD (FA-HP-β-CyD) and evaluated the potential of FA-HP-β-CyD as an anticancer agent using chronic myeloid leukemia (CML) cells in vitro and in vivo. FA-HP-β-CyD inhibited the growth of FR-expressing cells but not that of FR-negative cells. FA-HP-β-CyD had stronger anti-leukemia and cell-binding activities than HP-β-CyD in CML cells. Unlike HP-β-CyD, FA-HP-β-CyD entered CML cells through endocytosis and induced both apoptosis and autophagy via mitophagy. FA-HP-β-CyD increased the inhibitory effects of the ABL tyrosine kinase inhibitors imatinib mesylate and ponatinib, which are commonly used in CML. In vivo experiments in a BCR-ABL leukemia mouse model showed that FA-HP-β-CyD was more effective than HP-β-CyD at a ten-fold lower dose. These results indicate that FA-HP-β-CyD may be a novel tumor-targeting agent for the treatment of leukemia.
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Affiliation(s)
- Toshimi Hoshiko
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga 849-8501, Japan; (T.H.); (Y.K.)
| | - Yasushi Kubota
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga 849-8501, Japan; (T.H.); (Y.K.)
- Saitama Medical Center, Department of Transfusion Medicine and Cell Therapy, Saitama Medical University, Kawagoe 350-8550, Japan
| | - Risako Onodera
- Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto 862-0973, Japan; (R.O.); (T.H.); (K.M.)
| | - Taishi Higashi
- Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto 862-0973, Japan; (R.O.); (T.H.); (K.M.)
- Priority Organization for Innovation and Excellence, Kumamoto University, Kumamoto 862-0973, Japan
| | - Masako Yokoo
- Saga Medical Center Koseikan, Department of Hematology, Saga 849-8571, Japan;
| | - Keiichi Motoyama
- Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto 862-0973, Japan; (R.O.); (T.H.); (K.M.)
| | - Shinya Kimura
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga 849-8501, Japan; (T.H.); (Y.K.)
- Correspondence: ; Tel.: +81-952-34-2353; Fax: +81-952-34-2017
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Design, synthesis, and biological evaluation of novel Bcr-Abl T315I inhibitors incorporating amino acids as flexible linker. Bioorg Med Chem 2021; 48:116398. [PMID: 34547714 DOI: 10.1016/j.bmc.2021.116398] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Revised: 08/31/2021] [Accepted: 09/02/2021] [Indexed: 01/25/2023]
Abstract
Despite the success of imatinib in CML therapy through Bcr-Abl inhibition, acquired drug resistance occurs over time in patients. In particular, the resistance caused by T315I mutation remains a challenge in clinic. Herein, we embarked on a structural optimization campaign aiming at discovery of novel Bcr-Abl inhibitors toward T315I mutant based on previously reported dibenzoylpiperazin derivatives. We proposed that incorporation of flexible linker could achieve potent inhibition of Bcr-AblT315I by avoiding steric clash with bulky sidechain of Ile315. A library of 28 compounds with amino acids as linker has been developed and evaluated. Among them, compound AA2 displayed the most potent activity against Bcr-AblWT and Bcr-AblT315I, as well as toward Bcr-Abl driven K562 and K562R cells. Further investigations indicated that AA2 could induce apoptosis of K562 cells and down regulate phosphorylation of Bcr-Abl. In summary, the compounds with amino acid as novel flexible linker exhibited certain antitumor activities, providing valuable hints for the discovery of novel Bcr-Abl inhibitors to overcome T315I mutant resistance, and AA2 could be considered as a candidate for further optimization.
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Small-molecule inhibitor targeting the Hsp70-Bim protein-protein interaction in CML cells overcomes BCR-ABL-independent TKI resistance. Leukemia 2021; 35:2862-2874. [PMID: 34007045 DOI: 10.1038/s41375-021-01283-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 04/21/2021] [Accepted: 05/04/2021] [Indexed: 02/06/2023]
Abstract
Herein, we screened a novel inhibitor of the Hsp70-Bim protein-protein interaction (PPI), S1g-2, from a Bcl-2 inhibitor library; this compound specifically disrupted the Hsp70-Bim PPI by direct binding to an unknown site adjacent to that of an allosteric Hsp70 inhibitor MKT-077, showing binding affinity in sub-μM concentration range. S1g-2 exhibited overall 5-10-fold higher apoptosis-inducing activity in CML cells, primary CML blasts, and BCR-ABL-transformed BaF3 cells than other cancer cells, normal lymphocytes, and BaF3 cells, illustrating Hsp70-Bim PPI driven by BCR-ABL protects CML through oncoclient proteins that enriched in three pathways: eIF2 signaling, the regulation of eIF4E and p70S6K signaling, and the mTOR signaling pathways. Moreover, S1g-2 progressively enhanced lethality along with the increase in BCR-ABL-independent TKI resistance in the K562 cell lines and is more effective in primary samples from BCR-ABL-independent TKI-resistant patients than those from TKI-sensitive patients. By comparing the underlying mechanisms of S1g-2, MKT-077, and an ATP-competitive Hsp70 inhibitor VER-155008, the Hsp70-Bim PPI was identified to be a CML-specific target to protect from TKIs through the above three oncogenic signaling pathways. The in vivo activity against CML and low toxicity endows S1g-2 a first-in-class promising drug candidate for both TKI-sensitive and resistant CML.
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Giraud F, Pereira E, Anizon F, Moreau P. Recent Advances in Pain Management: Relevant Protein Kinases and Their Inhibitors. Molecules 2021; 26:molecules26092696. [PMID: 34064521 PMCID: PMC8124620 DOI: 10.3390/molecules26092696] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 04/20/2021] [Accepted: 04/30/2021] [Indexed: 12/16/2022] Open
Abstract
The purpose of this review is to underline the protein kinases that have been established, either in fundamental approach or clinical trials, as potential biological targets in pain management. Protein kinases are presented according to their group in the human kinome: TK (Trk, RET, EGFR, JAK, VEGFR, SFK, BCR-Abl), CMGC (p38 MAPK, MEK, ERK, JNK, ASK1, CDK, CLK2, DYRK1A, GSK3, CK2), AGC (PKA, PKB, PKC, PKMζ, PKG, ROCK), CAMK, CK1 and atypical/other protein kinases (IKK, mTOR). Examples of small molecule inhibitors of these biological targets, demonstrating an analgesic effect, are described. Altogether, this review demonstrates the fundamental role that protein kinase inhibitors could play in the development of new pain treatments.
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Reichenstein M, Borovok N, Sheinin A, Brider T, Michaelevski I. Abelson Kinases Mediate the Depression of Spontaneous Synaptic Activity Induced by Amyloid Beta 1-42 Peptides. Cell Mol Neurobiol 2021; 41:431-448. [PMID: 32399753 DOI: 10.1007/s10571-020-00858-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 04/27/2020] [Indexed: 10/24/2022]
Abstract
Amyloid beta (Aβ) peptides represent one of the most studied etiological factors of Alzheimer's disease. Nevertheless, the effects elicited by different molecular forms of amyloid beta peptides widely vary between the studies, mostly depending on experimental conditions. Despite the enormous amount of accumulated evidences concerning the pathological effects of amyloid beta peptides, the exact identity of the amyloid beta species is still controversial, and even less is clear as regards to the downstream effectors that mediate the devastating impact of these peptides on synapses in the central nervous system. Recent publications indicate that some of the neurotoxic effects of amyloid beta peptides may be mediated via the activation of proteins belonging to the Abelson non-receptor tyrosine kinase (Abl) family, that are known to regulate actin cytoskeleton structure as well as phosphorylate microtubule-associated tau protein, a hallmark of Alzheimer's disease. By performing series of miniature excitatory postsynaptic currents (mEPSC) recordings in cultured hippocampal cells, we demonstrate that activation of Abl kinases by acute application of 42 amino acid-length monomeric amyloid beta (Aβ1-42) peptides reduces spontaneous synaptic release, while this effect can be rescued by pharmacologic inhibition of Abl kinase activity, or by reduction of Abl expression with small interfering RNAs. Our electrophysiological data are further reinforced by a subsequent biochemical analysis, showing enhanced phosphorylation of Abl kinase substrate CT10 Regulator of Kinase-homolog-Like (Crkl) upon treatment of hippocampal neurons with Aβ peptides. Thus, we conclude that Abl kinase activation may be involved in Aβ-induced weakening of synaptic transmission.
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Affiliation(s)
- M Reichenstein
- Dept. of Biochemistry and Molecular Biology, Tel Aviv University, 69978, Tel Aviv, Israel
| | - N Borovok
- Dept. of Biochemistry and Molecular Biology, Tel Aviv University, 69978, Tel Aviv, Israel
| | - A Sheinin
- Dept. of Biochemistry and Molecular Biology, Tel Aviv University, 69978, Tel Aviv, Israel
- Sagol School of Neuroscience, Tel Aviv University, 69978, Tel Aviv, Israel
| | - T Brider
- Department of Molecular Biology, Ariel University, 40700, Ariel, Israel
| | - I Michaelevski
- Department of Molecular Biology, Ariel University, 40700, Ariel, Israel.
- Integrative Brain Science Center Ariel, IBSCA, Ariel University, 40700, Ariel, Israel.
- The Adelson Medical School, Ariel University, 40700, Ariel, Israel.
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Mologni L, Marzaro G, Redaelli S, Zambon A. Dual Kinase Targeting in Leukemia. Cancers (Basel) 2021; 13:cancers13010119. [PMID: 33401428 PMCID: PMC7796318 DOI: 10.3390/cancers13010119] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 12/23/2020] [Accepted: 12/28/2020] [Indexed: 12/13/2022] Open
Abstract
Simple Summary A new option to treat cancer is based on the use of so-called multi-targeting drugs. This strategy can replace the standard treatment based on the co-administration of several drugs. An increased and uncontrolled activity of kinases (enzymes devoted to the regulation of several cell pathways) is often seen in hematological malignancies. The development of multi-kinase inhibitors is having a great impact on the treatment of this kind of cancer. Here, we review the most recent findings on this novel class of drugs. Abstract Pharmacological cancer therapy is often based on the concurrent inhibition of different survival pathways to improve treatment outcomes and to reduce the risk of relapses. While this strategy is traditionally pursued only through the co-administration of several drugs, the recent development of multi-targeting drugs (i.e., compounds intrinsically able to simultaneously target several macromolecules involved in cancer onset) has had a dramatic impact on cancer treatment. This review focuses on the most recent developments in dual-kinase inhibitors used in acute myeloid leukemia (AML), chronic myelogenous leukemia (CML), and lymphoid tumors, giving details on preclinical studies as well as ongoing clinical trials. A brief overview of dual-targeting inhibitors (kinase/histone deacetylase (HDAC) and kinase/tubulin polymerization inhibitors) applied to leukemia is also given. Finally, the very recently developed Proteolysis Targeting Chimeras (PROTAC)-based kinase inhibitors are presented.
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Affiliation(s)
- Luca Mologni
- Department of Medicine and Surgery, University of Milano-Bicocca, 20900 Monza, Italy; (L.M.); (S.R.)
| | - Giovanni Marzaro
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, via Marzolo 5, I-35131 Padova, Italy;
| | - Sara Redaelli
- Department of Medicine and Surgery, University of Milano-Bicocca, 20900 Monza, Italy; (L.M.); (S.R.)
| | - Alfonso Zambon
- Department of Chemistry and Geological Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy
- Correspondence: ; Tel.: +39-059-2058-640
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A review on kinases phosphorylating the carboxyl-terminal domain of RNA polymerase II-Biological functions and inhibitors. Bioorg Chem 2020; 104:104318. [PMID: 33142427 DOI: 10.1016/j.bioorg.2020.104318] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 08/18/2020] [Accepted: 09/23/2020] [Indexed: 12/14/2022]
Abstract
RNA polymerase II (RNA Pol II) plays a major role in gene transcription for eukaryote. One of the major modes of regulation in eukaryotes is the phosphorylation of the carboxyl-terminal domain (CTD) of RNA Pol II. The current study found that the phosphorylation of Ser2, Ser5, Ser7, Thr4 and Tyr1 among the heptapeptide repeats of CTD plays a key role in the transcription process. We therefore review the biological functions and inhibitors of kinases that phosphorylate these amino acid residues including transcriptional cyclin-dependent protein kinases (CDKs), bromodomain-containing protein 4 (BRD4), Polo-like kinases 3 (Plk3) and Abelson murine leukemia viral oncogene 1 and 2 (c-Abl1/2).
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20
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CD36 facilitates fatty acid uptake by dynamic palmitoylation-regulated endocytosis. Nat Commun 2020; 11:4765. [PMID: 32958780 PMCID: PMC7505845 DOI: 10.1038/s41467-020-18565-8] [Citation(s) in RCA: 173] [Impact Index Per Article: 43.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 08/31/2020] [Indexed: 02/03/2023] Open
Abstract
Fatty acids (FAs) are essential nutrients, but how they are transported into cells remains unclear. Here, we show that FAs trigger caveolae-dependent CD36 internalization, which in turn delivers FAs into adipocytes. During the process, binding of FAs to CD36 activates its downstream kinase LYN, which phosphorylates DHHC5, the palmitoyl acyltransferase of CD36, at Tyr91 and inactivates it. CD36 then gets depalmitoylated by APT1 and recruits another tyrosine kinase SYK to phosphorylate JNK and VAVs to initiate endocytic uptake of FAs. Blocking CD36 internalization by inhibiting APT1, LYN or SYK abolishes CD36-dependent FA uptake. Restricting CD36 at either palmitoylated or depalmitoylated state eliminates its FA uptake activity, indicating an essential role of dynamic palmitoylation of CD36. Furthermore, blocking endocytosis by targeting LYN or SYK inhibits CD36-dependent lipid droplet growth in adipocytes and high-fat-diet induced weight gain in mice. Our study has uncovered a dynamic palmitoylation-regulated endocytic pathway to take up FAs.
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21
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Sun J, Wang Y, Sun L. INNO-406 inhibits the growth of chronic myeloid leukemia and promotes its apoptosis via targeting PTEN. Hum Cell 2020; 33:1112-1119. [PMID: 32862368 DOI: 10.1007/s13577-020-00413-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 08/07/2020] [Indexed: 11/29/2022]
Abstract
Chronic myeloid leukemia (CML) is a myeloproliferative neoplasm. INNO-406 is a novel tyrosine kinase inhibitor (TKI) that possess specific Lyn kinase inhibitory activity with no or limited activity against other sarcoma (Src) family member kinases. The present study aimed to confirm the anti-tumor effect of INNO-406 on CML cells, and elucidate the underlying molecular mechanism. CML cells were treated by INNO-406 at the concentration of 5, 25, 50, 100 μM at the indicated time. Cell proliferation was measured by MTT. Cell apoptosis were detected by Western blot and flow cytometry, respectively. As suggested by the findings, INNO-406 significantly inhibited the proliferation and induced apoptosis of CML cells. In addition, INNO-406 promoted the expression level of PTEN. Rescue experiment revealed that PTEN knockdown reversed the effect of INNO-406 which indicated the correlation between INNO-406 and PTEN. Further study determined that PTEN inhibited the phosphorylation of AKT and 4EBP1 and subsequently altered the expression of apoptotic proteins including bax, cytoplasmic cytochrome c (cyto-c), cleaved caspase3 and bcl-2. In vivo study further confirmed that INNO-406 inhibited the growth of CML cells by targeting PTEN. Based on the above findings, this work extended our understanding of INNO-406 in the therapy of CML and its molecular mechanism.
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MESH Headings
- Antineoplastic Agents
- Apoptosis/drug effects
- Apoptosis/genetics
- Cell Line, Tumor
- Cell Proliferation/drug effects
- Cell Proliferation/genetics
- Dose-Response Relationship, Drug
- Gene Expression/drug effects
- Gene Expression/genetics
- Gene Expression Regulation, Neoplastic/drug effects
- Gene Expression Regulation, Neoplastic/genetics
- Humans
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/genetics
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/pathology
- PTEN Phosphohydrolase/genetics
- PTEN Phosphohydrolase/metabolism
- Protein Kinase Inhibitors/pharmacology
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Affiliation(s)
- Jiandong Sun
- Department of Pediatric Hematology, Affiliated Hospital of Qingdao University, Huangdao District, 1677 Wutaishan Road, Qingdao, 266555, Shandong, China
| | - Yilin Wang
- Department of Pediatric Hematology, Affiliated Hospital of Qingdao University, Huangdao District, 1677 Wutaishan Road, Qingdao, 266555, Shandong, China
| | - Lirong Sun
- Department of Pediatric Hematology, Affiliated Hospital of Qingdao University, Huangdao District, 1677 Wutaishan Road, Qingdao, 266555, Shandong, China.
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Palve V, Liao Y, Remsing Rix LL, Rix U. Turning liabilities into opportunities: Off-target based drug repurposing in cancer. Semin Cancer Biol 2020; 68:209-229. [PMID: 32044472 DOI: 10.1016/j.semcancer.2020.02.003] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 01/29/2020] [Accepted: 02/03/2020] [Indexed: 12/12/2022]
Abstract
Targeted drugs and precision medicine have transformed the landscape of cancer therapy and significantly improved patient outcomes in many cases. However, as therapies are becoming more and more tailored to smaller patient populations and acquired resistance is limiting the duration of clinical responses, there is an ever increasing demand for new drugs, which is not easily met considering steadily rising drug attrition rates and development costs. Considering these challenges drug repurposing is an attractive complementary approach to traditional drug discovery that can satisfy some of these needs. This is facilitated by the fact that most targeted drugs, despite their implicit connotation, are not singularly specific, but rather display a wide spectrum of target selectivity. Importantly, some of the unintended drug "off-targets" are known anticancer targets in their own right. Others are becoming recognized as such in the process of elucidating off-target mechanisms that in fact are responsible for a drug's anticancer activity, thereby revealing potentially new cancer vulnerabilities. Harnessing such beneficial off-target effects can therefore lead to novel and promising precision medicine approaches. Here, we will discuss experimental and computational methods that are employed to specifically develop single target and network-based off-target repurposing strategies, for instance with drug combinations or polypharmacology drugs. By illustrating concrete examples that have led to clinical translation we will furthermore examine the various scientific and non-scientific factors that cumulatively determine the success of these efforts and thus can inform the future development of new and potentially lifesaving off-target based drug repurposing strategies for cancers that constitute important unmet medical needs.
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Affiliation(s)
- Vinayak Palve
- Department of Drug Discovery, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL, 33612, USA
| | - Yi Liao
- Department of Drug Discovery, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL, 33612, USA
| | - Lily L Remsing Rix
- Department of Drug Discovery, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL, 33612, USA
| | - Uwe Rix
- Department of Drug Discovery, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL, 33612, USA.
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Effect of dual inhibition of histone deacetylase and phosphatidylinositol-3 kinase in Philadelphia chromosome-positive leukemia cells. Cancer Chemother Pharmacol 2020; 85:401-412. [PMID: 31901955 DOI: 10.1007/s00280-019-04022-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Accepted: 12/19/2019] [Indexed: 12/17/2022]
Abstract
PURPOSE ABL tyrosine kinase inhibitors (TKIs) have demonstrated potency in the treatment of chronic myeloid leukemia (CML) patients. However, resistance to ABL TKIs can develop in CML patients due to BCR-ABL point mutations. Furthermore, CUDC-907 is an oral inhibitor of class I phosphoinositide 3-kinase (PI3K) as well as class I and II histone deacetylase (HDAC) enzymes. METHODS In this study, we evaluated the effect of combination therapy of CUDC-907 and ABL TKIs, using BCR-ABL-positive cell lines and primary samples. RESULTS CUDC-907 treatment for 72 h resulted in cell growth inhibition. Over the same period, an increase in histone acetylation and both caspase three and poly (ADP-ribose) polymerase (PARP) enzyme activity was observed. When ABL TKI treatment and CUDC-907 treatment were combined, significantly greater cytotoxicity was observed. Moreover, combined oral therapy with ponatinib (20 mg/kg/day) and CUDC-907 (30 mg/kg/day) greatly inhibited tumor growth compared to each drug alone. Lastly, CUDC-907 treatment also inhibited the growth of Ba/F3 ponatinib-resistant cells, K562 nilotinib-resistant cells, and T315I mutant primary samples. CONCLUSION Taken together, our results indicate that administration of CUDC-907, a dual PI3K and HDAC inhibitor, may be an effective strategy against ABL TKI-resistant cells, including cells harboring the T315I mutation. Moreover, CUDC-907 may enhance the cytotoxic effects of ABL TKI when a combined treatment strategy is used against Philadelphia chromosome-positive leukemia cells.
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Multikinase Abl/DDR/Src Inhibition Produces Optimal Effects for Tyrosine Kinase Inhibition in Neurodegeneration. Drugs R D 2019; 19:149-166. [PMID: 30919310 PMCID: PMC6544596 DOI: 10.1007/s40268-019-0266-z] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Background and objectives Inhibition of Abelson (Abl) tyrosine kinase as a therapeutic target has been gaining attention in neurodegeneration. Post-mortem Alzheimer’s and Parkinson’s disease brains show that the levels of several other tyrosine kinases, including Discoidin Domain Receptors (DDR1/2) are elevated. Knockdown of these tyrosine kinases with shRNA reduces neurotoxic proteins, including alpha-synuclein, beta-amyloid and tau. Methods Direct profiling of the pharmacokinetics of multi-kinase inhibitors Nilotinib, Bosutinib, Bafetinib, Radotinib and LCB-03-0110 shows differential levels of brain penetration but the ability of these agents to reduce toxic proteins is independent of brain concentration and selectivity to Abl. Results Our results indicate that the effective dose of Nilotinib has the lowest plasma:brain ratio (1%) followed by Bosutinib and Radotinib (5%), Bafetinib (12%) and LCB-03-0110 (12%). However, similar doses of multi-kinase Abl/DDR inhibitor Nilotinib, DDR/Src inhibitor LCB-03-0110 and Abl/Src inhibitor Bosutinib were much more effective than the more selective Abl inhibitors Radotinib and Bafetinib. Taken together, these data suggest that a multi-kinase target that includes Abl and other tyrosine kinases (DDRs, and Src) may offer more advantages alleviating neurodegenerative pathologies than the absolute CNS drug concentration and selectivity to Abl. Conclusion DDRs and Src are other potential co-targets with Abl in neurodegeneration. Electronic supplementary material The online version of this article (10.1007/s40268-019-0266-z) contains supplementary material, which is available to authorized users.
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25
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Moret N, Clark NA, Hafner M, Wang Y, Lounkine E, Medvedovic M, Wang J, Gray N, Jenkins J, Sorger PK. Cheminformatics Tools for Analyzing and Designing Optimized Small-Molecule Collections and Libraries. Cell Chem Biol 2019; 26:765-777.e3. [PMID: 30956147 DOI: 10.1016/j.chembiol.2019.02.018] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 11/28/2018] [Accepted: 02/26/2019] [Indexed: 12/15/2022]
Abstract
Libraries of well-annotated small molecules have many uses in chemical genetics, drug discovery, and therapeutic repurposing. Multiple libraries are available, but few data-driven approaches exist to compare them and design new libraries. We describe an approach to scoring and creating libraries based on binding selectivity, target coverage, and induced cellular phenotypes as well as chemical structure, stage of clinical development, and user preference. The approach, available via the online tool http://www.smallmoleculesuite.org, assembles sets of compounds with the lowest possible off-target overlap. Analysis of six kinase inhibitor libraries using our approach reveals dramatic differences among them and led us to design a new LSP-OptimalKinase library that outperforms existing collections in target coverage and compact size. We also describe a mechanism of action library that optimally covers 1,852 targets in the liganded genome. Our tools facilitate creation, analysis, and updates of both private and public compound collections.
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Affiliation(s)
- Nienke Moret
- HMS LINCS and Druggable Genome Centers, Laboratory of Systems Pharmacology, Harvard Program in Therapeutic Science, Harvard Medical School, Warren Alpert 444, 200 Longwood Avenue, Boston, MA 02115, USA; Department of Systems Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Nicholas A Clark
- Division of Biostatistics and Bioinformatics, Department of Environmental Health, University of Cincinnati, Cincinnati, OH 45221, USA
| | - Marc Hafner
- HMS LINCS and Druggable Genome Centers, Laboratory of Systems Pharmacology, Harvard Program in Therapeutic Science, Harvard Medical School, Warren Alpert 444, 200 Longwood Avenue, Boston, MA 02115, USA; Department of Systems Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Yuan Wang
- Novartis Institutes for BioMedical Research Inc., 181 Massachusetts Avenue, Cambridge, MA 02139, USA
| | - Eugen Lounkine
- Novartis Institutes for BioMedical Research Inc., 181 Massachusetts Avenue, Cambridge, MA 02139, USA
| | - Mario Medvedovic
- Division of Biostatistics and Bioinformatics, Department of Environmental Health, University of Cincinnati, Cincinnati, OH 45221, USA
| | - Jinhua Wang
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02115, USA; Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, 360 Longwood Avenue, Longwood Center 2209, Boston, MA 02115, USA
| | - Nathanael Gray
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02115, USA; Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, 360 Longwood Avenue, Longwood Center 2209, Boston, MA 02115, USA
| | - Jeremy Jenkins
- Novartis Institutes for BioMedical Research Inc., 181 Massachusetts Avenue, Cambridge, MA 02139, USA
| | - Peter K Sorger
- HMS LINCS and Druggable Genome Centers, Laboratory of Systems Pharmacology, Harvard Program in Therapeutic Science, Harvard Medical School, Warren Alpert 444, 200 Longwood Avenue, Boston, MA 02115, USA; Department of Systems Biology, Harvard Medical School, Boston, MA 02115, USA.
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26
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Mat Yusoff Y, Abu Seman Z, Othman N, Kamaluddin NR, Esa E, Zulkiply NA, Abdullah J, Zakaria Z. Prevalence of BCR-ABL T315I Mutation in Malaysian Patients with Imatinib-Resistant Chronic Myeloid Leukemia. Asian Pac J Cancer Prev 2018; 19:3317-3320. [PMID: 30583336 PMCID: PMC6428553 DOI: 10.31557/apjcp.2018.19.12.3317] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Objective: Chronic Myeloid Leukemia (CML) is caused by a reciprocal translocation between chromosomes 9 and 22, t(9;22) (q34;q11) which encodes for the BCR-ABL fusion protein. Discovery of Imatinib Mesylate (IM) as first line therapy has brought tremendous improvement in the management of CML. However, emergence of point mutations within the BCR-ABL gene particularly T315I mutation, affects a common BCR-ABL kinase contact residue which impairs drug binding thus contribute to treatment resistance. This study aims to investigate the BCR-ABL T315I mutation in Malaysian patients with CML. Methods: A total of 285 patients diagnosed with CML were included in this study. Mutation detection was performed using qualitative real-time PCR (qPCR). Results: Fifteen out of 285 samples (5.26%) were positive for T315I mutations after amplification with real-time PCR assay. From the total number of positive samples, six patients were in accelerated phase (AP), four in chronic phase (CP) and five in blast crisis (BC). Conclusion: Mutation testing is recommended for choosing various tyrosine kinase inhibitors (TKIs) to optimize outcomes for both cases of treatment failure or suboptimal response to imatinib. Therefore, detection of T315I mutation in CML patients are clinically useful in the selection of appropriate treatment strategies to prevent disease progression.
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Affiliation(s)
- Yuslina Mat Yusoff
- Haematology Unit, Cancer Research Centre, Institute for Medical Research, Jalan Pahang, Wilayah Persekutuan Kuala Lumpur, Malaysia.
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27
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Okabe S, Tauchi T, Tanaka Y, Ohyashiki K. Therapeutic targeting of Aurora A kinase in Philadelphia chromosome-positive ABL tyrosine kinase inhibitor-resistant cells. Oncotarget 2018; 9:32496-32506. [PMID: 30197758 PMCID: PMC6126699 DOI: 10.18632/oncotarget.25985] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Accepted: 07/29/2018] [Indexed: 11/25/2022] Open
Abstract
Abelson murine leukemia viral oncogene homolog (ABL) tyrosine kinase inhibitors (TKIs) have been shown to be effective for treatment of chronic myeloid leukemia (CML) and Philadelphia chromosome-positive (Ph+) acute lymphoblastic leukemia patients. However, resistance to ABL TKIs can develop as a result of breakpoint cluster region-ABL point mutations. Aurora kinases regulate many processes associated with mitosis. In this study, we investigated whether inhibiting Aurora kinase can reduce the viability of Ph+ leukemia cells. Treatment with the Aurora kinase A inhibitor alisertib blocked Ph+ leukemia cell proliferation and Aurora kinase A phosphorylation; it also induced G2/M-phase arrest and increased the intracellular levels of reactive oxygen species. Combined treatment of Ph+ cells with ABL TKIs and alisertib was cytotoxic, with the fraction of senescent cells increasing in a time- and dose-dependent manner. Aurora A gene silencing suppressed cell proliferation and enhanced ABL TKI efficacy. In a mouse xenograft model, co-administration of ponatinib and alisertib enhanced survival and reduced tumor size; moreover, the treatments were well tolerated by the animals. These results indicate that inhibiting Aurora kinase can enhance the cytotoxic effects of ABL TKIs and is, therefore, an effective therapeutic strategy against ABL TKI-resistant cells, including those with the T315I mutation.
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Affiliation(s)
- Seiichi Okabe
- Department of Hematology, Tokyo Medical University, Tokyo, Japan
| | - Tetsuzo Tauchi
- Department of Hematology, Tokyo Medical University, Tokyo, Japan
| | - Yuko Tanaka
- Department of Hematology, Tokyo Medical University, Tokyo, Japan
| | - Kazuma Ohyashiki
- Department of Hematology, Tokyo Medical University, Tokyo, Japan
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28
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Morris SM, Mhyre AJ, Carmack SS, Myers CH, Burns C, Ye W, Ferrer M, Olson JM, Klinghoffer RA. A modified gene trap approach for improved high-throughput cancer drug discovery. Oncogene 2018; 37:4226-4238. [PMID: 29717260 PMCID: PMC6076322 DOI: 10.1038/s41388-018-0274-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2017] [Revised: 03/01/2018] [Accepted: 03/23/2018] [Indexed: 01/22/2023]
Abstract
While advances in laboratory automation has dramatically increased throughout of compound screening efforts, development of robust cell-based assays in relevant disease models remain resource-intensive and time-consuming, presenting a bottleneck to drug discovery campaigns. To address this issue, we present a modified gene trap approach to efficiently generate pathway-specific reporters that result in a robust "on" signal when the pathway of interest is inhibited. In this proof-of-concept study, we used vemurafenib and trametinib to identify traps that specifically detect inhibition of the mitogen-activated protein kinase (MAPK) pathway in a model of BRAFV600E driven human malignant melanoma. We demonstrate that insertion of our trap into particular loci results in remarkably specific detection of MAPK pathway inhibitors over compounds targeting any other pathway or cellular function. The accuracy of our approach was highlighted in a pilot screen of ~6000 compounds where 40 actives were detected, including 18 MEK, 10 RAF, and 3 ERK inhibitors along with a few compounds representing previously under-characterized inhibitors of the MAPK pathway. One such compound, bafetinib, a second generation BCR/ABL inhibitor, reduced phosphorylation of ERK and when combined with trametinib, both in vitro and in vivo, reduced growth of vemurafenib resistant melanoma cells. While piloted in a model of BRAF-driven melanoma, our results set the stage for using this approach to rapidly generate reporters against any transcriptionally active pathway across a wide variety of disease-relevant cell-based models to expedite drug discovery efforts.
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Affiliation(s)
- Shelli M Morris
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Andrew J Mhyre
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Savanna S Carmack
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Carrie H Myers
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | | | | | | | - James M Olson
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA.
- Division of Pediatric Hematology/Oncology, University of Washington School of Medicine, Seattle, WA, USA.
- Seattle Children's Hospital, Seattle, WA, USA.
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29
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Rossari F, Minutolo F, Orciuolo E. Past, present, and future of Bcr-Abl inhibitors: from chemical development to clinical efficacy. J Hematol Oncol 2018; 11:84. [PMID: 29925402 PMCID: PMC6011351 DOI: 10.1186/s13045-018-0624-2] [Citation(s) in RCA: 201] [Impact Index Per Article: 33.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Accepted: 06/01/2018] [Indexed: 01/08/2023] Open
Abstract
Bcr-Abl inhibitors paved the way of targeted therapy epoch. Imatinib was the first tyrosine kinase inhibitor to be discovered with high specificity for Bcr-Abl protein resulting from t(9, 22)-derived Philadelphia chromosome. Although the specific targeting of that oncoprotein, several Bcr-Abl-dependent and Bcr-Abl-independent mechanisms of resistance to imatinib arose after becoming first-line therapy in chronic myelogenous leukemia (CML) treatment.Consequently, new specific drugs, namely dasatinib, nilotinib, bosutinib, and ponatinib, were rationally designed and approved for clinic to override resistances. Imatinib fine mechanisms of action had been elucidated to rationally develop those second- and third-generation inhibitors. Crystallographic and structure-activity relationship analysis, jointly to clinical data, were pivotal to shed light on this topic. More recently, preclinical evidence on bafetinib, rebastinib, tozasertib, danusertib, HG-7-85-01, GNF-2, and 1,3,4-thiadiazole derivatives lay promising foundations for better inhibitors to be approved for clinic in the near future.Notably, structural mechanisms of action and drug design exemplified by Bcr-Abl inhibitors have broad relevance to both break through resistances in CML treatment and develop inhibitors against other kinases as targeted chemotherapeutics.
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Affiliation(s)
- Federico Rossari
- Institute of Life Sciences, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà, 33, 56127, Pisa, PI, Italy. .,University of Pisa, Pisa, Italy.
| | | | - Enrico Orciuolo
- Department of Clinical and Experimental Medicine, Section of Hematology, Azienda Ospedaliero Universitaria Pisana, Pisa, Italy
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30
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Abstract
We present a number of techniques to analyze protein-ligand interactions in the context of medicinal chemistry: crystal Contract Preferences, Electrostatic Maps and pharmacophore screening using Hückel Theory. Contact Preferences is a statistical technique to predict hydrophobic and hydrophilic geometry in receptor active sites. Electrostatic Maps use the Poisson-Boltzmann Equation to model solvation effects and are particularly useful for predicting hydrophobic regions. Pharmacophore annotation with Hückel Theory provides finer detail of hydrogen bonding interactions, including CH..O interactions. Applications to AblK:Gleevec and CDK2 virtual screening are presented.
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Affiliation(s)
- Paul Labute
- Chemical Computing Group Inc., 1010 Sherbrooke Street W, Suite 910, Montreal, QC, Canada, H3A 2R7.
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31
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Sun Y, Zhao N, Wang H, Wu Q, Han Y, Liu Q, Wu M, Liu Y, Kong F, Wang H, Sun Y, Sun D, Jing L, Tang G, Hu Y, Xiao D, Luo H, Han Y, Peng Y. CT-721, a Potent Bcr-Abl Inhibitor, Exhibits Excellent In Vitro and In Vivo Efficacy in the Treatment of Chronic Myeloid Leukemia. J Cancer 2017; 8:2774-2784. [PMID: 28928866 PMCID: PMC5604209 DOI: 10.7150/jca.18731] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Accepted: 05/18/2017] [Indexed: 12/30/2022] Open
Abstract
Kinase inhibitors that target Bcr-Abl are highly effective in the treatment of chronic myeloid leukemia (CML). However, these inhibitors are often invalidated due to the drug resistance. Therefore, the discovery and development of novel Bcr-Abl inhibitors is required to overwhelm the drug resistance in the treatment of CML resistant to the currently used first-line Bcr-Abl inhibitors. Herein we have described a newly developed Bcr-Abl inhibitor CT-721, which displayed potent inhibitory effects on wild-type and T315I mutant Bcr-Abl. It functioned as a typically ATP-competitive inhibitor, superior to other existing Bcr-Abl inhibitors. CT-721 also demonstrated time-dependent inhibition of Bcr-Abl activation and the resultant downstream signaling transduction pathways in Bcr-Abl positive cells. Furthermore, CT-721 induced cell apoptosis and cell cycle arrest, and efficaciously inhibited tumor growth in Bcr-Abl-expressed K562 and KU812 xenograft models in a mechanism-based manner. Further PK/PD studies revealed a positive in vivo correlation between the compound concentration and inhibition of Bcr-Abl activity. Taken together, CT-721 is a potent and time-dependent Bcr-Abl kinase inhibitor, and has shown strong in vitro and in vivo anti-CML activities with a favorable pharmacokinetic profile, differentiating it from other Bcr-Abl kinase inhibitors already approved and current in development for the treatment of CML.
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Affiliation(s)
- Yinghui Sun
- Department of Biology, Centaurus BioPharma Co., Ltd
| | - Na Zhao
- Department of Biology, Centaurus BioPharma Co., Ltd
| | - Huan Wang
- Department of Biology, Centaurus BioPharma Co., Ltd
| | - Qiong Wu
- Department of Biology, Centaurus BioPharma Co., Ltd
| | - Yunqi Han
- Department of Biology, Centaurus BioPharma Co., Ltd
| | - Qichao Liu
- Department of Biology, Centaurus BioPharma Co., Ltd
| | - Mangang Wu
- Department of Biology, Centaurus BioPharma Co., Ltd
| | - Yuliang Liu
- Department of Medical Chemistry, Centaurus BioPharma Co., Ltd
| | | | - He Wang
- Department of DMPK, Centaurus BioPharma Co., Ltd
| | - Ying Sun
- Department of DMPK, Centaurus BioPharma Co., Ltd
| | - Deguang Sun
- Department of Medical Chemistry, Centaurus BioPharma Co., Ltd
| | - Lutao Jing
- Department of Medical Chemistry, Centaurus BioPharma Co., Ltd
| | - Guojing Tang
- Department of Medical Chemistry, Centaurus BioPharma Co., Ltd
| | - Yuandong Hu
- Department of Medical Chemistry, Centaurus BioPharma Co., Ltd
| | - Dengming Xiao
- Department of Medical Chemistry, Centaurus BioPharma Co., Ltd
| | - Hong Luo
- Department of DMPK, Centaurus BioPharma Co., Ltd
| | - Yongxin Han
- Department of Medical Chemistry, Centaurus BioPharma Co., Ltd
| | - Yong Peng
- Department of Biology, Centaurus BioPharma Co., Ltd
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32
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Dallari S, Macal M, Loureiro ME, Jo Y, Swanson L, Hesser C, Ghosh P, Zuniga EI. Src family kinases Fyn and Lyn are constitutively activated and mediate plasmacytoid dendritic cell responses. Nat Commun 2017; 8:14830. [PMID: 28368000 PMCID: PMC5382270 DOI: 10.1038/ncomms14830] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Accepted: 02/03/2017] [Indexed: 12/19/2022] Open
Abstract
Plasmacytoid dendritic cells (pDC) are type I interferon-producing cells with critical functions in a number of human illnesses; however, their molecular regulation is incompletely understood. Here we show the role of Src family kinases (SFK) in mouse and human pDCs. pDCs express Fyn and Lyn and their activating residues are phosphorylated both before and after Toll-like receptor (TLR) stimulation. Fyn or Lyn genetic ablation as well as treatment with SFK inhibitors ablate pDC (but not conventional DC) responses both in vitro and in vivo. Inhibition of SFK activity not only alters TLR-ligand localization and inhibits downstream signalling events, but, independent of ex-vivo TLR stimulation, also affects constitutive phosphorylation of BCAP, an adaptor protein bridging PI3K and TLR pathways. Our data identify Fyn and Lyn as important factors that promote pDC responses, describe the mechanisms involved and highlight a tonic SFK-mediated signalling that precedes pathogen encounter, raising the possibility that small molecules targeting SFKs could modulate pDC responses in human diseases.
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Affiliation(s)
- S Dallari
- Molecular Biology Section, Division of Biological Sciences, University of California, 9500 Gilman Dr La Jolla, San Diego, California 92093, USA
| | - M Macal
- Molecular Biology Section, Division of Biological Sciences, University of California, 9500 Gilman Dr La Jolla, San Diego, California 92093, USA
| | - M E Loureiro
- Molecular Biology Section, Division of Biological Sciences, University of California, 9500 Gilman Dr La Jolla, San Diego, California 92093, USA
| | - Y Jo
- Molecular Biology Section, Division of Biological Sciences, University of California, 9500 Gilman Dr La Jolla, San Diego, California 92093, USA
| | - L Swanson
- Departments of Medicine and Cellular and Molecular Medicine, University of California, 9500 Gilman Dr La Jolla, San Diego, California 92093, USA
| | - C Hesser
- Molecular Biology Section, Division of Biological Sciences, University of California, 9500 Gilman Dr La Jolla, San Diego, California 92093, USA
| | - P Ghosh
- Departments of Medicine and Cellular and Molecular Medicine, University of California, 9500 Gilman Dr La Jolla, San Diego, California 92093, USA
| | - E I Zuniga
- Molecular Biology Section, Division of Biological Sciences, University of California, 9500 Gilman Dr La Jolla, San Diego, California 92093, USA
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33
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Hu L, Cao T, Lv Y, Ding Y, Yang L, Zhang Q, Guo M. Design, synthesis, and biological activity of 4-(imidazo[1,2-b]pyridazin-3-yl)-1H-pyrazol-1-yl-phenylbenzamide derivatives as BCR-ABL kinase inhibitors. Bioorg Med Chem Lett 2016; 26:5830-5835. [PMID: 28029512 DOI: 10.1016/j.bmcl.2016.10.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2016] [Revised: 10/01/2016] [Accepted: 10/05/2016] [Indexed: 12/28/2022]
Abstract
A series of 4-((pyrazolo[1,5-a]pyrimidin-6-yl)-1H-pyrazol-1-yl)phenyl-3-benzamide derivatives and 4-((imidazo[1,2-b]pyridazin-3-yl)-1H-pyrazol-1-yl-)phenyl-3-benzamide derivatives were designed, synthesized as new BCR-ABL tyrosine kinase inhibitors by using combinational strategies of scaffold hopping and conformational constraint. These new compounds were screened for BCR-ABL1 kinase inhibitory activity, and most of them appeared good inhibitory activity against BCR-ABL1 kinase. One of the most potent compounds 16a strongly suppressed BCR-ABL1 kinase with IC50 value of 8.5nM. The tested compounds 16a and 16i showed strong inhibitory activities against K562 with IC50 value of less than 2nM. Molecular docking studies indicated that these compounds fitted well with the active site of BCR-ABL1 protein. The results showed these inhibitors may serve as lead compounds for further developing new drugs targeted BCR-ABL kinase.
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Affiliation(s)
- Liming Hu
- College of Life Science and Bioengineering, Beijing University of Technology, Beijing 100124, China.
| | - Tingting Cao
- College of Life Science and Bioengineering, Beijing University of Technology, Beijing 100124, China
| | - Yongjuan Lv
- College of Life Science and Bioengineering, Beijing University of Technology, Beijing 100124, China
| | - Yiming Ding
- College of Life Science and Bioengineering, Beijing University of Technology, Beijing 100124, China
| | - Leifu Yang
- Beijing Scitech-MQ Pharmaceuticals Limited, Beijing 101320, China
| | - Qiang Zhang
- Beijing Scitech-MQ Pharmaceuticals Limited, Beijing 101320, China
| | - Mingzhou Guo
- Chinese PLA General Hospital, Beijing 100853, China
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34
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Pham H, Birtolo C, Chheda C, Yang W, Rodriguez MD, Liu ST, Gugliotta G, Lewis MS, Cirulli V, Pandol SJ, Ptasznik A. Essential Role of Lyn in Fibrosis. Front Physiol 2016; 7:387. [PMID: 27630579 PMCID: PMC5006658 DOI: 10.3389/fphys.2016.00387] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2016] [Accepted: 08/22/2016] [Indexed: 12/13/2022] Open
Abstract
Fibrotic disorders involve replacement of normal parenchyma with myofibroblasts, which deposit connective tissue, leading to obliteration of the function of the underlying organ. The treatment options are inadequate and reflect the fact that signaling targets in myofibroblasts are unknown. Here we identify the hyperactive Lyn signaling in myofibroblasts of patients with chronic pancreatitis-induced fibrosis. Lyn activation coexpress with markers of activated myofibroblasts, and is increased ~11-fold in chronic pancreatitis compared to normal tissue. Inhibition of Lyn with siRNA or INNO-406 leads to the substantial decrease of migration and proliferation of human chronic pancreatitis myofibroblasts in vitro, while leaving migration and proliferation of normal myofibroblasts only slightly affected. Furthermore, inhibition of Lyn prevents synthesis of procollagen and collagen in myofibroblasts in a mouse model of chronic pancreatitis-induced fibrosis. We conclude that Lyn, as a positive regulator of myofibroblast migration, proliferation, and collagen production, is a key target for preventing fibrosis.
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Affiliation(s)
- Hung Pham
- Division of Gastroenterology, Department of Medicine, Cedars-Sinai Medical CenterLos Angeles, CA, USA; Department of Veterans AffairsLos Angeles, CA, USA; Department of Medicine, University of California, Los AngelesLos Angeles, CA, USA
| | - Chiara Birtolo
- Division of Gastroenterology, Department of Medicine, Cedars-Sinai Medical CenterLos Angeles, CA, USA; Department of Internal Medicine, University of BolognaBologna, Italy
| | - Chintan Chheda
- Division of Gastroenterology, Department of Medicine, Cedars-Sinai Medical Center Los Angeles, CA, USA
| | - Wendy Yang
- Department of Medicine, Institute of Stem Cell and Regenerative Medicine, University of Washington Seattle, WA, USA
| | - Maria D Rodriguez
- Division of Gastroenterology, Department of Medicine, Cedars-Sinai Medical Center Los Angeles, CA, USA
| | - Sandy T Liu
- Division of Gastroenterology, Department of Medicine, Cedars-Sinai Medical CenterLos Angeles, CA, USA; Department of Medicine, University of California, Los AngelesLos Angeles, CA, USA
| | - Gabriele Gugliotta
- Division of Gastroenterology, Department of Medicine, Cedars-Sinai Medical CenterLos Angeles, CA, USA; Department of Internal Medicine, University of BolognaBologna, Italy
| | - Michael S Lewis
- Department of Veterans AffairsLos Angeles, CA, USA; Department of Medicine, University of California, Los AngelesLos Angeles, CA, USA
| | - Vincenzo Cirulli
- Department of Medicine, Institute of Stem Cell and Regenerative Medicine, University of Washington Seattle, WA, USA
| | - Stephen J Pandol
- Division of Gastroenterology, Department of Medicine, Cedars-Sinai Medical CenterLos Angeles, CA, USA; Department of Veterans AffairsLos Angeles, CA, USA; Department of Medicine, University of California, Los AngelesLos Angeles, CA, USA
| | - Andrzej Ptasznik
- Division of Gastroenterology, Department of Medicine, Cedars-Sinai Medical Center Los Angeles, CA, USA
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35
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Okabe S, Tauchi T, Tanaka Y, Sakuta J, Ohyashiki K. Combination therapy with copanlisib and ABL tyrosine kinase inhibitors against Philadelphia chromosome-positive resistant cells. Oncotarget 2016; 7:53116-53126. [PMID: 27437766 PMCID: PMC5288172 DOI: 10.18632/oncotarget.10605] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Accepted: 06/30/2016] [Indexed: 11/25/2022] Open
Abstract
ABL tyrosine kinase inhibitor (TKI) therapy has improved the survival of patients with Philadelphia (Ph) chromosome-positive leukemia. However, ABL TKIs cannot eradicate leukemia stem cells. Therefore, new therapeutic approaches for Ph-positive leukemia are needed. Aberrant activation of phosphoinositide 3-kinase (PI3K) signaling is important for the initiation and maintenance of human cancers. Copanlisib (BAY80-6946) is a potent inhibitor of PI3Kα and PI3K-δ. Here we investigated the efficacy of combination therapy of copanlisib with an ABL TKI (imatinib, nilotinib, or ponatinib) using BCR-ABL-positive cells. Although the effects of the ABL TKI treatment were reduced in the presence of the feeder cell line, HS-5, copanlisib inhibited cell growth. Upon combining ABL TKI and copanlisib, cell growth was reduced. Ponatinib and copanlisib combined therapy reduced tumor volume and increased survival in mouse allograft models, respectively. These results indicate that the PI3Kα and -δ inhibitors overcame the chemoprotective effects of the feeder cells and enhanced ABL TKI cytotoxicity. Thus, co-treatment with ABL TKI and copanlisib may be a powerful strategy against ABL TKI-resistant cells, including those harboring the related T315I mutation.
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MESH Headings
- Animals
- Antineoplastic Combined Chemotherapy Protocols/pharmacology
- Cell Line, Tumor
- Cell Proliferation/drug effects
- Drug Resistance, Neoplasm/drug effects
- Drug Resistance, Neoplasm/genetics
- Drug Synergism
- Female
- Fusion Proteins, bcr-abl/antagonists & inhibitors
- Fusion Proteins, bcr-abl/genetics
- Fusion Proteins, bcr-abl/metabolism
- Humans
- Imatinib Mesylate/administration & dosage
- Imatinib Mesylate/pharmacology
- Imidazoles/administration & dosage
- Imidazoles/pharmacology
- K562 Cells
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/drug therapy
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/genetics
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/metabolism
- Mice
- Mice, Inbred BALB C
- Mice, Nude
- Mutation
- Neoplasms, Experimental/drug therapy
- Neoplasms, Experimental/genetics
- Neoplasms, Experimental/metabolism
- Phosphoinositide-3 Kinase Inhibitors
- Protein Kinase Inhibitors/administration & dosage
- Protein Kinase Inhibitors/pharmacology
- Pyridazines/administration & dosage
- Pyridazines/pharmacology
- Pyrimidines/administration & dosage
- Pyrimidines/pharmacology
- Quinazolines/administration & dosage
- Quinazolines/pharmacology
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Affiliation(s)
- Seiichi Okabe
- Department of Hematology, Tokyo Medical University, Tokyo, Japan
| | - Tetsuzo Tauchi
- Department of Hematology, Tokyo Medical University, Tokyo, Japan
| | - Yuko Tanaka
- Department of Hematology, Tokyo Medical University, Tokyo, Japan
| | - Juri Sakuta
- Department of Hematology, Tokyo Medical University, Tokyo, Japan
| | - Kazuma Ohyashiki
- Department of Hematology, Tokyo Medical University, Tokyo, Japan
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36
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Efficacy of the polo-like kinase inhibitor rigosertib, alone or in combination with Abelson tyrosine kinase inhibitors, against break point cluster region-c-Abelson-positive leukemia cells. Oncotarget 2016; 6:20231-40. [PMID: 26008977 PMCID: PMC4653000 DOI: 10.18632/oncotarget.4047] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Accepted: 04/22/2015] [Indexed: 11/25/2022] Open
Abstract
The potency of Abelson (ABL) tyrosine kinase inhibitors (TKIs) against chronic myeloid leukemia (CML) has been demonstrated. However, ABL TKI resistance can develop. In this study, we investigated the efficacy of a combination therapy including rigosertib (ON 01910.Na), a polo-like kinase (PLK) and phosphoinositide 3-kinase (PI3K) inhibitor, and ABL TKIs. A 72-h rigosertib treatment was found to inhibit cell growth, induce apoptosis, reduce phosphorylation of the breakpoint cluster region-c (BCR)-ABL and its substrate Crk-L, and increase the activities of caspase 3 and poly (ADP-ribose) polymerase (PARP). This combination therapy also exerted a synergistic inhibitory effect on Philadelphia chromosome (Ph)-positive cell proliferation and reduced the phosphorylation of BCR-ABL and Crk-L while increasing that of cleaved PARP and the H2A.X histone. Rigosertib also potently inhibited the growth of ABL TKI-resistant cells, and cotreatment with ABL TKIs and rigosertib induced higher cytotoxicity. These results indicate that rigosertib treatment may be a powerful strategy against ABL TKI-resistant cells and could enhance the cytotoxic effects of ABL TKIs.
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37
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Matsuda Y, Yamauchi T, Hosono N, Uzui K, Negoro E, Morinaga K, Nishi R, Yoshida A, Kimura S, Maekawa T, Ueda T. Combination of panobinostat with ponatinib synergistically overcomes imatinib-resistant CML cells. Cancer Sci 2016; 107:1029-38. [PMID: 27166836 PMCID: PMC4946706 DOI: 10.1111/cas.12965] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Revised: 04/28/2016] [Accepted: 05/02/2016] [Indexed: 12/21/2022] Open
Abstract
The major mechanism of imatinib (IM) resistance of CML is the reactivation of ABL kinase either through BCR-ABL gene amplification or mutation. We investigated the cytotoxicity of a pan-ABL tyrosine kinase inhibitor, ponatinib, and a pan-histone deacetylase inhibitor, panobinostat, against IM-resistant CML cells in vitro. Two different IM-resistant cell lines, K562/IM-R1 and Ba/F3/T315I were evaluated in comparison with their respective, parental cell lines, K562 and Ba/F3. K562/IM-R1 overexpressed BCR-ABL due to gene amplification. Ba/F3/T315I was transfected with a BCR-ABL gene encoding T315I-mutated BCR-ABL. Ponatinib inhibited the growth of both K562/IM-R1 and Ba/F3/T315I as potently as it inhibited their parental cells with an IC50 of 2-30 nM. Panobinostat also similarly inhibited the growth of all of the cell lines with an IC50 of 40-51 nM. This was accompanied by reduced histone deacetylase activity, induced histone H3 acetylation, and an increased protein level of heat shock protein 70, which suggested disruption of heat shock protein 90 chaperone function for BCR-ABL and its degradation. Importantly, the combination of ponatinib with panobinostat showed synergistic growth inhibition and induced a higher level of apoptosis than the sum of the apoptosis induced by each agent alone in all of the cell lines. Ponatinib inhibited phosphorylation not only of BCR-ABL but also of downstream signal transducer and activator of transcription 5, protein kinase B, and ERK1/2 in both K562/IM-R1 and Ba/F3/T315I, and the addition of panobinostat to ponatinib further inhibited these phosphorylations. In conclusion, panobinostat enhanced the cytotoxicity of ponatinib towards IM-resistant CML cells including those with T315I-mutated BCR-ABL.
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Affiliation(s)
- Yasufumi Matsuda
- Department of Hematology and Oncology, Faculty of Medical Sciences, University of Fukui, Fukui, Japan
| | - Takahiro Yamauchi
- Department of Hematology and Oncology, Faculty of Medical Sciences, University of Fukui, Fukui, Japan
| | - Naoko Hosono
- Department of Hematology and Oncology, Faculty of Medical Sciences, University of Fukui, Fukui, Japan
| | - Kanako Uzui
- Department of Hematology and Oncology, Faculty of Medical Sciences, University of Fukui, Fukui, Japan
| | - Eiju Negoro
- Department of Hematology and Oncology, Faculty of Medical Sciences, University of Fukui, Fukui, Japan
| | - Koji Morinaga
- Department of Hematology and Oncology, Faculty of Medical Sciences, University of Fukui, Fukui, Japan
| | - Rie Nishi
- Department of Hematology and Oncology, Faculty of Medical Sciences, University of Fukui, Fukui, Japan
| | - Akira Yoshida
- Department of Hematology and Oncology, Faculty of Medical Sciences, University of Fukui, Fukui, Japan
| | - Shinya Kimura
- Division of Hematology, Respiratory Medicine and Oncology, Faculty of Medicine, Saga University, Saga, Japan
| | - Taira Maekawa
- Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital, Kyoto, Japan
| | - Takanori Ueda
- Department of Hematology and Oncology, Faculty of Medical Sciences, University of Fukui, Fukui, Japan
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38
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39
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Di Stefano C, Mirone G, Perna S, Marfe G. The roles of microRNAs in the pathogenesis and drug resistance of chronic myelogenous leukemia (Review). Oncol Rep 2015; 35:614-24. [PMID: 26718125 DOI: 10.3892/or.2015.4456] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2015] [Accepted: 09/23/2015] [Indexed: 11/06/2022] Open
Abstract
Chronic myeloid leukemia (CML) is characterized by the accumulation of Philadelphia chromosome-positive (Ph+) myeloid cells. Ph+ cells occur via a reciprocal translocation between the long arms of chromosomes 9 and 22 resulting in constitutively active BCR-ABL fusion protein. Tyrosine kinase inhibitors (TKIs) are used against the kinase activity of BCR-ABL protein for the effective treatment of CML. However, the development of drug resistance, caused by different genetic mechanisms, is the major issue in the clinical application of TKIs. These mechanisms include changes in expression levels of microRNAs (miRNAs). miRNAs are short non-coding regulatory RNAs that control gene expression and play an important role in cancer development and progression. In the present review, we highlight the roles of miRNAs both in the progression and chemotherapy-resistance of CML. Our understanding of these mechanisms may lead to the use of this knowledge not only in the treatment of patients with CML, but also in other type of cancers.
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Affiliation(s)
- Carla Di Stefano
- Department of Hematology, 'Tor Vergata' University, I-00133 Rome, Italy
| | - Giovanna Mirone
- Department of Medical Oncology B, Regina Elena National Cancer Institute, I-00144 Rome, Italy
| | - Stefania Perna
- Department of Scienze e Tecnologie Ambientali, Biologiche e Farmaceutiche, Seconda Università di Napoli, I-81100 Caserta, Italy
| | - Gabriella Marfe
- Department of Scienze e Tecnologie Ambientali, Biologiche e Farmaceutiche, Seconda Università di Napoli, I-81100 Caserta, Italy
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40
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Yokoo M, Kubota Y, Motoyama K, Higashi T, Taniyoshi M, Tokumaru H, Nishiyama R, Tabe Y, Mochinaga S, Sato A, Sueoka-Aragane N, Sueoka E, Arima H, Irie T, Kimura S. 2-Hydroxypropyl-β-Cyclodextrin Acts as a Novel Anticancer Agent. PLoS One 2015; 10:e0141946. [PMID: 26535909 PMCID: PMC4633159 DOI: 10.1371/journal.pone.0141946] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Accepted: 10/15/2015] [Indexed: 12/11/2022] Open
Abstract
2-Hydroxypropyl-β-cyclodextrin (HP-β-CyD) is a cyclic oligosaccharide that is widely used as an enabling excipient in pharmaceutical formulations, but also as a cholesterol modifier. HP-β-CyD has recently been approved for the treatment of Niemann-Pick Type C disease, a lysosomal lipid storage disorder, and is used in clinical practice. Since cholesterol accumulation and/or dysregulated cholesterol metabolism has been described in various malignancies, including leukemia, we hypothesized that HP-β-CyD itself might have anticancer effects. This study provides evidence that HP-β-CyD inhibits leukemic cell proliferation at physiologically available doses. First, we identified the potency of HP-β-CyD in vitro against various leukemic cell lines derived from acute myeloid leukemia (AML), acute lymphoblastic leukemia and chronic myeloid leukemia (CML). HP-β-CyD treatment reduced intracellular cholesterol resulting in significant leukemic cell growth inhibition through G2/M cell-cycle arrest and apoptosis. Intraperitoneal injection of HP-β-CyD significantly improved survival in leukemia mouse models. Importantly, HP-β-CyD also showed anticancer effects against CML cells expressing a T315I BCR-ABL mutation (that confers resistance to most ABL tyrosine kinase inhibitors), and hypoxia-adapted CML cells that have characteristics of leukemic stem cells. In addition, colony forming ability of human primary AML and CML cells was inhibited by HP-β-CyD. Systemic administration of HP-β-CyD to mice had no significant adverse effects. These data suggest that HP-β-CyD is a promising anticancer agent regardless of disease or cellular characteristics.
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MESH Headings
- 2-Hydroxypropyl-beta-cyclodextrin
- Animals
- Antineoplastic Agents/therapeutic use
- Antineoplastic Agents/toxicity
- Apoptosis/drug effects
- Cell Line, Tumor
- Cell Proliferation/drug effects
- Cholesterol/analysis
- Cholesterol/metabolism
- Colorimetry
- Drug Resistance, Neoplasm/drug effects
- Fusion Proteins, bcr-abl/genetics
- Fusion Proteins, bcr-abl/metabolism
- G2 Phase Cell Cycle Checkpoints/drug effects
- Humans
- K562 Cells
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/drug therapy
- Leukemia, Myeloid, Acute/drug therapy
- Lung/pathology
- M Phase Cell Cycle Checkpoints/drug effects
- Mice
- Mice, Inbred BALB C
- Mice, Inbred NOD
- Mice, Nude
- Mice, SCID
- Signal Transduction/drug effects
- Transplantation, Heterologous
- beta-Cyclodextrins/therapeutic use
- beta-Cyclodextrins/toxicity
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Affiliation(s)
- Masako Yokoo
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga, Japan
| | - Yasushi Kubota
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga, Japan
- Department of Transfusion Medicine, Saga University Hospital, Saga, Japan
- * E-mail:
| | - Keiichi Motoyama
- Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - Taishi Higashi
- Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - Masatoshi Taniyoshi
- Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - Hiroko Tokumaru
- Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - Rena Nishiyama
- Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - Yoko Tabe
- Department of Clinical Laboratory Medicine, Juntendo University School of Medicine, Tokyo, Japan
| | | | - Akemi Sato
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga, Japan
| | - Naoko Sueoka-Aragane
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga, Japan
| | - Eisaburo Sueoka
- Department of Transfusion Medicine, Saga University Hospital, Saga, Japan
- Department of Clinical Laboratory Medicine, Faculty of Medicine, Saga University, Saga, Japan
| | - Hidetoshi Arima
- Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
- Program for Leading Graduate Schools “HIGO (Health life science: Interdisciplinary and Global Oriented) Program”, Kumamoto University, Kumamoto, Japan
| | - Tetsumi Irie
- Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
- Program for Leading Graduate Schools “HIGO (Health life science: Interdisciplinary and Global Oriented) Program”, Kumamoto University, Kumamoto, Japan
| | - Shinya Kimura
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga, Japan
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41
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Szwed M, Kania KD, Jozwiak Z. Toxicity of doxorubicin-transferrin conjugate is connected to the modulation of Wnt/β-catenin pathway in human leukemia cells. Leuk Res 2015; 39:1096-102. [DOI: 10.1016/j.leukres.2015.07.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Revised: 06/26/2015] [Accepted: 07/09/2015] [Indexed: 01/17/2023]
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42
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Pan X, Dong J, Shao R, Su P, Shi Y, Wang J, He L. Expanding the structural diversity of Bcr-Abl inhibitors: Hybrid molecules based on GNF-2 and Imatinib. Bioorg Med Chem Lett 2015; 25:4164-8. [PMID: 26298495 DOI: 10.1016/j.bmcl.2015.08.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2015] [Revised: 07/08/2015] [Accepted: 08/06/2015] [Indexed: 11/17/2022]
Abstract
In order to expand the structural diversity of Bcr-Abl inhibitors, twenty hybrids (series E and P) have been synthesized and characterized based on Imatinib and GNF-2. Their biological activities were evaluated in vitro against human leukemia cells. Most compounds exhibited potent antiproliferative activity against K562 cells, especially for compounds E4, E5 and E7. Furthermore, these new hybrids were also screened for Abl kinase inhibitory activity, and some of them inhibited Abl kinase with low micromolar IC50 values. In particular, compound P3 displayed the most potent activity with IC50 value of 0.017 μM comparable with that of Imatinib. Molecular docking studies indicated that these novel hybrids fitted well with the active site of Bcr-Abl. These results suggested the great potential of these compounds as novel Bcr-Abl inhibitors.
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Affiliation(s)
- Xiaoyan Pan
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, No. 76, Yanta West Road, Xi'an, Shaanxi Province 710061, PR China
| | - Jinyun Dong
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, No. 76, Yanta West Road, Xi'an, Shaanxi Province 710061, PR China
| | - Ruili Shao
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, No. 76, Yanta West Road, Xi'an, Shaanxi Province 710061, PR China
| | - Ping Su
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, No. 76, Yanta West Road, Xi'an, Shaanxi Province 710061, PR China
| | - Yaling Shi
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, No. 76, Yanta West Road, Xi'an, Shaanxi Province 710061, PR China
| | - Jinfeng Wang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, No. 76, Yanta West Road, Xi'an, Shaanxi Province 710061, PR China
| | - Langchong He
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, No. 76, Yanta West Road, Xi'an, Shaanxi Province 710061, PR China
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43
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Lu X, Zhang Z, Ren X, Pan X, Wang D, Zhuang X, Luo J, Yu R, Ding K. Hybrid pyrimidine alkynyls inhibit the clinically resistance related Bcr-Abl(T315I) mutant. Bioorg Med Chem Lett 2015. [PMID: 26195136 DOI: 10.1016/j.bmcl.2015.07.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A series of pyrimidine alkynyl derivatives were designed and synthesized as new Bcr-Abl inhibitors by hybriding the structural moieties from GNF-7, ponatinib and nilotinib. One of the most potent compounds 4e strongly suppresses Bcr-Abl(WT) and Bcr-Abl(T315I) kinase with IC50 values of 5.0 and 9.0 nM, and inhibits the proliferation of K562 and murine Ba/F3 cells ectopically expressing Bcr-Abl(T315I) cells with IC50 values of 2 and 50 nM, respectively. It also displays good pharmacokinetics properties with an oral bioavailability of 35.3% and T(1/2) value of 48.7 h, and demonstrates significantly suppression on tumor growth in xenografted mice of K562 and Ba/F3 cells expressing Bcr-Abl(T315I). These inhibitors may serve as lead compounds for further developing new anticancer drugs overcoming the clinically acquired resistance against current Bcr-Abl inhibitors.
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Affiliation(s)
- Xiaoyun Lu
- Key Laboratory of Respiratory Diseases, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, No. 190, Kaiyuan Avenue, Science Park, Guangzhou 510530, China.
| | - Zhang Zhang
- Biotechnological Institute of Chinese Materia Medica and Department of Pharmacology, Jinan University, 601 Huangpu Avenue West, Guangzhou 510632, China; Key Laboratory of Respiratory Diseases, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, No. 190, Kaiyuan Avenue, Science Park, Guangzhou 510530, China
| | - Xiaomei Ren
- Key Laboratory of Respiratory Diseases, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, No. 190, Kaiyuan Avenue, Science Park, Guangzhou 510530, China
| | - Xiaofeng Pan
- Key Laboratory of Respiratory Diseases, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, No. 190, Kaiyuan Avenue, Science Park, Guangzhou 510530, China
| | - Deping Wang
- Key Laboratory of Respiratory Diseases, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, No. 190, Kaiyuan Avenue, Science Park, Guangzhou 510530, China
| | - Xiaoxi Zhuang
- Key Laboratory of Respiratory Diseases, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, No. 190, Kaiyuan Avenue, Science Park, Guangzhou 510530, China
| | - Jingfeng Luo
- Key Laboratory of Respiratory Diseases, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, No. 190, Kaiyuan Avenue, Science Park, Guangzhou 510530, China
| | - Rongmin Yu
- Biotechnological Institute of Chinese Materia Medica and Department of Pharmacology, Jinan University, 601 Huangpu Avenue West, Guangzhou 510632, China
| | - Ke Ding
- Key Laboratory of Respiratory Diseases, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, No. 190, Kaiyuan Avenue, Science Park, Guangzhou 510530, China.
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44
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Lewis-Tuffin LJ, Feathers R, Hari P, Durand N, Li Z, Rodriguez FJ, Bakken K, Carlson B, Schroeder M, Sarkaria JN, Anastasiadis PZ. Src family kinases differentially influence glioma growth and motility. Mol Oncol 2015; 9:1783-98. [PMID: 26105207 DOI: 10.1016/j.molonc.2015.06.001] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Revised: 06/01/2015] [Accepted: 06/02/2015] [Indexed: 12/27/2022] Open
Abstract
Src-family kinase (SFK) signaling impacts multiple tumor-related properties, particularly in the context of the brain tumor glioblastoma. Consequently, the pan-SFK inhibitor dasatinib has emerged as a therapeutic strategy, despite physiologic limitations to its effectiveness in the brain. We investigated the importance of individual SFKs (Src, Fyn, Yes, and Lyn) to glioma tumor biology by knocking down individual SFK expression both in culture (LN229, SF767, GBM8) and orthotopic xenograft (GBM8) contexts. We evaluated the effects of these knockdowns on tumor cell proliferation, migration, and motility-related signaling in culture, as well as overall survival in the orthotopic xenograft model. The four SFKs differed significantly in their importance to these properties. In culture, Src, Fyn, and Yes knockdown generally reduced growth and migration and altered motility-related phosphorylation patterns while Lyn knockdown did so to a lesser extent. However the details of these effects varied significantly depending on the cell line: in no case were conclusions about the role of a particular SFK applicable to all of the measures or all of the cell types examined. In the orthotopic xenograft model, mice implanted with non-target or Src or Fyn knockdown cells showed no differences in survival. In contrast, mice implanted with Yes knockdown cells had longer survival, associated with reduced tumor cell proliferation. Those implanted with Lyn knockdown cells had shorter survival, associated with higher overall tumor burden. Together, our results suggest that Yes signaling directly affects tumor cell biology in a pro-tumorigenic manner, while Lyn signaling affects interactions between tumor cells and the microenvironment in an anti-tumor manner. In the context of therapeutic targeting of SFKs, these results suggest that pan-SFK inhibitors may not produce the intended therapeutic benefit when Lyn is present.
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Affiliation(s)
- Laura J Lewis-Tuffin
- Department of Cancer Cell Biology, Mayo Clinic, 4500 San Pablo Road South, Jacksonville, FL 32224, USA
| | - Ryan Feathers
- Department of Cancer Cell Biology, Mayo Clinic, 4500 San Pablo Road South, Jacksonville, FL 32224, USA
| | - Priya Hari
- Department of Cancer Cell Biology, Mayo Clinic, 4500 San Pablo Road South, Jacksonville, FL 32224, USA
| | - Nisha Durand
- Department of Cancer Cell Biology, Mayo Clinic, 4500 San Pablo Road South, Jacksonville, FL 32224, USA
| | - Zhimin Li
- Department of Cancer Cell Biology, Mayo Clinic, 4500 San Pablo Road South, Jacksonville, FL 32224, USA
| | - Fausto J Rodriguez
- Department of Pathology, Johns Hopkins Hospital, 1800 Orleans Street, Baltimore, MD 21231, USA
| | - Katie Bakken
- Department of Radiation Oncology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA
| | - Brett Carlson
- Department of Radiation Oncology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA
| | - Mark Schroeder
- Department of Radiation Oncology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA
| | - Jann N Sarkaria
- Department of Radiation Oncology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA
| | - Panos Z Anastasiadis
- Department of Cancer Cell Biology, Mayo Clinic, 4500 San Pablo Road South, Jacksonville, FL 32224, USA.
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45
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Sterne GR, Kim JH, Ye B. Dysregulated Dscam levels act through Abelson tyrosine kinase to enlarge presynaptic arbors. eLife 2015; 4. [PMID: 25988807 PMCID: PMC4434255 DOI: 10.7554/elife.05196] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Accepted: 04/15/2015] [Indexed: 11/20/2022] Open
Abstract
Increased expression of Down Syndrome Cell Adhesion Molecule (Dscam) is implicated in the pathogenesis of brain disorders such as Down syndrome (DS) and fragile X syndrome (FXS). Here, we show that the cellular defects caused by dysregulated Dscam levels can be ameliorated by genetic and pharmacological inhibition of Abelson kinase (Abl) both in Dscam-overexpressing neurons and in a Drosophila model of fragile X syndrome. This study offers Abl as a potential therapeutic target for treating brain disorders associated with dysregulated Dscam expression. DOI:http://dx.doi.org/10.7554/eLife.05196.001 Information is transmitted through the brain by cells called neurons, which are connected into specific circuits and networks. As the brain develops, several different signaling molecules control how the connections between neurons develop. If these signals occur at the wrong time or wrong place, or in the wrong amount, the neurons may not connect in the right way; this is the cause of several brain disorders. One of the signaling molecules that helps neural circuits to form in the developing brain is the Dscam protein. Having too much Dscam has been linked to neurons with enlarged presynaptic terminals. Presynaptic terminals are the parts of each neuron that send information on to the next cell, and when they are enlarged it results in the neuron not being able to communicate with other neurons in a targeted way. People with brain disorders including Down syndrome, epilepsy and possibly fragile X syndrome often have excessive amounts of Dscam. It was not known precisely how Dscam signals within neurons. Sterne, Kim and Ye have now investigated this by exploring the effects of Dscam on a group of well-known neurons in the larvae of the fruit fly species Drosophila. The presynaptic terminals of single neurons in this group were labeled in the larvae using a genetic marker. This revealed that the neurons of larvae that had been engineered to produce too much Dscam had larger presynaptic terminals than normal. Further investigation showed that for Dscam to influence how a presynaptic terminal grows, it must interact with another signaling protein called Abelson tyrosine kinase (or Abl for short). Therefore, the larger presynaptic terminals seen in larvae that produce too much Dscam are a result of the Dscam protein activating too much Abl. There are several drugs that are approved for use in humans that suppress the activity of Abl. Sterne, Kim and Ye used two of these to treat fruit fly larvae, and found that they reversed the detrimental effects of extra Dscam on the larvae's neural circuit. Furthermore, the drugs fixed neural defects in a fruit fly model designed to reproduce the symptoms of fragile X syndrome. Overall, the results presented by Sterne, Kim and Ye suggest that suppressing the abnormally high activity of the Abl protein could be a way of treating the brain disorders caused by having excessive amounts of the Dscam protein. The next step is to test whether Dscam and Abl interact in the same way in mammals and whether the proposed treatment is effective in treating mammalian models of disorders that involve dysregulated Dscam signaling. DOI:http://dx.doi.org/10.7554/eLife.05196.002
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Affiliation(s)
- Gabriella R Sterne
- Life Sciences Institute, University of Michigan, Ann Arbor, United States
| | - Jung Hwan Kim
- Life Sciences Institute, University of Michigan, Ann Arbor, United States
| | - Bing Ye
- Life Sciences Institute, University of Michigan, Ann Arbor, United States
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46
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ABL kinase inhibitory and antiproliferative activity of novel picolinamide based benzothiazoles. Bioorg Med Chem Lett 2015; 25:2162-8. [PMID: 25881828 DOI: 10.1016/j.bmcl.2015.03.067] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2014] [Revised: 02/26/2015] [Accepted: 03/24/2015] [Indexed: 12/28/2022]
Abstract
A series of novel picolinamide based benzothiazoles (17 final compounds), targeting both wild-type and the most resistant T315I mutant of Bcr-Abl kinase, has been designed and synthesized. Moreover, a selected array (8 compounds) was evaluated for its antiproliferative activity over a panel of 60 cancer cell lines. Compound 5l was the most potent derivative against both native and T315I mutant ABL with IC50 values of 18.2 and 39.9nM, respectively, and showed highly selective inhibitory activity (89.8%) towards the Bcr-Abl dependent leukemia cell (K-562) at 10μM concentration. Significance of C6-oxypicolinamide moiety and SAR study for the C2 aliphatic side chain of benzothiazole are discussed in detail.
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47
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Yokoo M, Kubota Y, Tabe Y, Kimura S. Comparative Study of the Anti-leukemic Effects of Imatinib Mesylate, Glivec™ Tablet and Its Generic Formulation, OHK9511. Biol Pharm Bull 2015; 38:411-6. [DOI: 10.1248/bpb.b14-00652] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Masako Yokoo
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University
| | - Yasushi Kubota
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University
- Department of Transfusion Medicine, Saga University Hospital
| | - Yoko Tabe
- Department of Clinical Laboratory Medicine, Juntendo University School of Medicine
| | - Shinya Kimura
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University
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PF-114, a potent and selective inhibitor of native and mutated BCR/ABL is active against Philadelphia chromosome-positive (Ph+) leukemias harboring the T315I mutation. Leukemia 2014; 29:1104-14. [PMID: 25394714 DOI: 10.1038/leu.2014.326] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Revised: 10/16/2014] [Accepted: 11/07/2014] [Indexed: 12/20/2022]
Abstract
Targeting BCR/ABL with tyrosine kinase inhibitors (TKIs) is a proven concept for the treatment of Philadelphia chromosome-positive (Ph+) leukemias. Resistance attributable to either kinase mutations in BCR/ABL or nonmutational mechanisms remains the major clinical challenge. With the exception of ponatinib, all approved TKIs are unable to inhibit the 'gatekeeper' mutation T315I. However, a broad spectrum of kinase inhibition increases the off-target effects of TKIs and may be responsible for cardiovascular issues of ponatinib. Thus, there is a need for more selective options for the treatment of resistant Ph+ leukemias. PF-114 is a novel TKI developed with the specifications of (i) targeting T315I and other resistance mutations in BCR/ABL; (ii) achieving a high selectivity to improve safety; and (iii) overcoming nonmutational resistance in Ph+ leukemias. PF-114 inhibited BCR/ABL and clinically important mutants including T315I at nanomolar concentrations. It suppressed primary Ph+ acute lymphatic leukemia-derived long-term cultures that either displayed nonmutational resistance or harbor the T315I. In BCR/ABL- or BCR/ABL-T315I-driven murine leukemia as well as in xenograft models of primary Ph+ leukemia harboring the T315I, PF-114 significantly prolonged survival to a similar extent as ponatinib. Our work supports clinical evaluation of PF-114 for the treatment of resistant Ph+ leukemia.
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Combination therapy with nilotinib for drug-sensitive and drug-resistant BCR-ABL-positive leukemia and other malignancies. Arch Toxicol 2014; 88:2233-42. [DOI: 10.1007/s00204-014-1385-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Accepted: 10/08/2014] [Indexed: 11/26/2022]
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Zardan A, Nip KM, Thaper D, Toren P, Vahid S, Beraldi E, Fazli L, Lamoureux F, Gust KM, Cox ME, Bishop JL, Zoubeidi A. Lyn tyrosine kinase regulates androgen receptor expression and activity in castrate-resistant prostate cancer. Oncogenesis 2014; 3:e115. [PMID: 25133482 PMCID: PMC5189960 DOI: 10.1038/oncsis.2014.30] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2014] [Revised: 05/22/2014] [Accepted: 06/03/2014] [Indexed: 12/27/2022] Open
Abstract
Castrate-resistant prostate cancer (CRPC) progression is a complex process by which prostate cells acquire the ability to survive and proliferate in the absence or under very low levels of androgens. Most CRPC tumors continue to express the androgen receptor (AR) as well as androgen-responsive genes owing to reactivation of AR. Protein tyrosine kinases have been implicated in supporting AR activation under castrate conditions. Here we report that Lyn tyrosine kinase expression is upregulated in CRPC human specimens compared with hormone naive or normal tissue. Lyn overexpression enhanced AR transcriptional activity both in vitro and in vivo and accelerated CRPC. Reciprocally, specific targeting of Lyn resulted in a decrease of AR transcriptional activity in vitro and in vivo and prolonged time to castration. Mechanistically, we found that targeting Lyn kinase induces AR dissociation from the molecular chaperone Hsp90, leading to its ubiquitination and proteasomal degradation. This work indicates a novel mechanism of regulation of AR stability and transcriptional activity by Lyn and justifies further investigation of the Lyn tyrosine kinase as a therapeutic target for the treatment of CRPC.
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Affiliation(s)
- A Zardan
- The Vancouver Prostate Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - K M Nip
- The Vancouver Prostate Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - D Thaper
- The Vancouver Prostate Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - P Toren
- The Vancouver Prostate Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - S Vahid
- The Vancouver Prostate Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - E Beraldi
- The Vancouver Prostate Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - L Fazli
- The Vancouver Prostate Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - F Lamoureux
- The Vancouver Prostate Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - K M Gust
- The Vancouver Prostate Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - M E Cox
- 1] The Vancouver Prostate Centre, University of British Columbia, Vancouver, British Columbia, Canada [2] Department of Urologic Sciences, University of British Columbia, Vancouver, British Columbia, Canada
| | - J L Bishop
- The Vancouver Prostate Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - A Zoubeidi
- 1] The Vancouver Prostate Centre, University of British Columbia, Vancouver, British Columbia, Canada [2] Department of Urologic Sciences, University of British Columbia, Vancouver, British Columbia, Canada
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