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Elbezanti WO, Al-Odat OS, Chitren R, Singh JK, Srivastava SK, Gowda K, Amin S, Robertson GP, Nemmara VV, Jonnalagadda SC, Budak-Alpdogan T, Pandey MK. Development of a novel Bruton's tyrosine kinase inhibitor that exerts anti-cancer activities potentiates response of chemotherapeutic agents in multiple myeloma stem cell-like cells. Front Pharmacol 2022; 13:894535. [PMID: 36160379 PMCID: PMC9500300 DOI: 10.3389/fphar.2022.894535] [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: 03/11/2022] [Accepted: 08/16/2022] [Indexed: 11/13/2022] Open
Abstract
Despite recent improvements in multiple myeloma (MM) treatment, MM remains an incurable disease and most patients experience a relapse. The major reason for myeloma recurrence is the persistent stem cell-like population. It has been demonstrated that overexpression of Bruton's tyrosine kinase (BTK) in MM stem cell-like cells is correlated with drug resistance and poor prognosis. We have developed a novel small BTK inhibitor, KS151, which is unique compared to other BTK inhibitors. Unlike ibrutinib, and the other BTK inhibitors such as acalabrutinib, orelabrutinib, and zanubrutinib that covalently bind to the C481 residue in the BTK kinase domain, KS151 can inhibit BTK activities without binding to C481. This feature of KS151 is important because C481 becomes mutated in many patients and causes drug resistance. We demonstrated that KS151 inhibits in vitro BTK kinase activities and is more potent than ibrutinib. Furthermore, by performing a semi-quantitative, sandwich-based array for 71-tyrosine kinase phosphorylation, we found that KS151 specifically inhibits BTK. Our western blotting data showed that KS151 inhibits BTK signaling pathways and is effective against bortezomib-resistant cells as well as MM stem cell-like cells. Moreover, KS151 potentiates the apoptotic response of bortezomib, lenalidomide, and panobinostat in both MM and stem cell-like cells. Interestingly, KS151 inhibits stemness markers and is efficient in inhibiting Nanog and Gli1 stemness markers even when MM cells were co-cultured with bone marrow stromal cells (BMSCs). Overall, our results show that we have developed a novel BTK inhibitor effective against the stem cell-like population, and potentiates the response of chemotherapeutic agents.
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Affiliation(s)
- Weam Othman Elbezanti
- Department of Biomedical Sciences, Cooper Medical School of Rowan University, Camden, NJ, United States,Department of Hematology, MD Anderson Cancer Center at Cooper, Cooper Health University, Camden, NJ, United States
| | - Omar S. Al-Odat
- Department of Biomedical Sciences, Cooper Medical School of Rowan University, Camden, NJ, United States,Department of Chemistry and Biochemistry, College of Science and Mathematics, Rowan University, Glassboro, NJ, United States
| | - Robert Chitren
- Department of Biomedical Sciences, Cooper Medical School of Rowan University, Camden, NJ, United States,Department of Chemistry and Biochemistry, College of Science and Mathematics, Rowan University, Glassboro, NJ, United States
| | | | | | - Krishne Gowda
- Department of Pharmacology, Penn State Hershey Cancer Institute, Penn State College of Medicine, Hershey, PA, United States
| | - Shantu Amin
- Department of Pharmacology, Penn State Hershey Cancer Institute, Penn State College of Medicine, Hershey, PA, United States
| | - Gavin P. Robertson
- Department of Pharmacology, Penn State Hershey Cancer Institute, Penn State College of Medicine, Hershey, PA, United States
| | - Venkatesh V. Nemmara
- Department of Chemistry and Biochemistry, College of Science and Mathematics, Rowan University, Glassboro, NJ, United States
| | - Subash C. Jonnalagadda
- Department of Chemistry and Biochemistry, College of Science and Mathematics, Rowan University, Glassboro, NJ, United States
| | - Tulin Budak-Alpdogan
- Department of Hematology, MD Anderson Cancer Center at Cooper, Cooper Health University, Camden, NJ, United States
| | - Manoj K. Pandey
- Department of Biomedical Sciences, Cooper Medical School of Rowan University, Camden, NJ, United States,*Correspondence: Manoj K. Pandey,
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2
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McDonald C, Xanthopoulos C, Kostareli E. The role of Bruton's tyrosine kinase in the immune system and disease. Immunology 2021; 164:722-736. [PMID: 34534359 PMCID: PMC8561098 DOI: 10.1111/imm.13416] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 08/30/2021] [Accepted: 09/10/2021] [Indexed: 12/12/2022] Open
Abstract
Bruton's tyrosine kinase (BTK) is a TEC kinase with a multifaceted role in B-cell biology and function, highlighted by its position as a critical component of the B-cell receptor signalling pathway. Due to its role as a therapeutic target in several haematological malignancies including chronic lymphocytic leukaemia, BTK has been gaining tremendous momentum in recent years. Within the immune system, BTK plays a part in numerous pathways and cells beyond B cells (i.e. T cells, macrophages). Not surprisingly, BTK has been elucidated to be a driving factor not only in lymphoproliferative disorders but also in autoimmune diseases and response to infection. To extort this role, BTK inhibitors such as ibrutinib have been developed to target BTK in other diseases. However, due to rising levels of resistance, the urgency to develop new inhibitors with alternative modes of targeting BTK is high. To meet this demand, an expanding list of BTK inhibitors is currently being trialled. In this review, we synopsize recent discoveries regarding BTK and its role within different immune cells and pathways. Additionally, we discuss the broad significance and relevance of BTK for various diseases ranging from haematology and rheumatology to the COVID-19 pandemic. Overall, BTK signalling and its targetable nature have emerged as immensely important for a wide range of clinical applications. The development of novel, more specific and less toxic BTK inhibitors could be revolutionary for a significant number of diseases with yet unmet treatment needs.
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Affiliation(s)
- Charlotte McDonald
- The Wellcome‐Wolfson Institute for Experimental MedicineSchool of Medicine Dentistry and Biomedical SciencesQueen's University BelfastBelfastUK
| | - Charalampos Xanthopoulos
- The Wellcome‐Wolfson Institute for Experimental MedicineSchool of Medicine Dentistry and Biomedical SciencesQueen's University BelfastBelfastUK
| | - Efterpi Kostareli
- The Wellcome‐Wolfson Institute for Experimental MedicineSchool of Medicine Dentistry and Biomedical SciencesQueen's University BelfastBelfastUK
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3
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Al Shboul S, Curran OE, Alfaro JA, Lickiss F, Nita E, Kowalski J, Naji F, Nenutil R, Ball KL, Krejcir R, Vojtesek B, Hupp TR, Brennan PM. Kinomics platform using GBM tissue identifies BTK as being associated with higher patient survival. Life Sci Alliance 2021; 4:4/12/e202101054. [PMID: 34645618 PMCID: PMC8548209 DOI: 10.26508/lsa.202101054] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 09/27/2021] [Accepted: 09/27/2021] [Indexed: 01/18/2023] Open
Abstract
BTK is a dominant bioactive kinase expressed within both cancer and immune cells of GBM tissue. Complex cell co-cultures might better model the impact of kinase inhibitors as therapeutics in GBM. Better understanding of GBM signalling networks in-vivo would help develop more physiologically relevant ex vivo models to support therapeutic discovery. A “functional proteomics” screen was undertaken to measure the specific activity of a set of protein kinases in a two-step cell-free biochemical assay to define dominant kinase activities to identify potentially novel drug targets that may have been overlooked in studies interrogating GBM-derived cell lines. A dominant kinase activity derived from the tumour tissue, but not patient-derived GBM stem-like cell lines, was Bruton tyrosine kinase (BTK). We demonstrate that BTK is expressed in more than one cell type within GBM tissue; SOX2-positive cells, CD163-positive cells, CD68-positive cells, and an unidentified cell population which is SOX2-negative CD163-negative and/or CD68-negative. The data provide a strategy to better mimic GBM tissue ex vivo by reconstituting more physiologically heterogeneous cell co-culture models including BTK-positive/negative cancer and immune cells. These data also have implications for the design and/or interpretation of emerging clinical trials using BTK inhibitors because BTK expression within GBM tissue was linked to longer patient survival.
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Affiliation(s)
- Sofian Al Shboul
- Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK .,Department of Basic Medical Sciences, Faculty of Medicine, The Hashemite University, Zarqa, Jordan
| | - Olimpia E Curran
- Department of Neuropathology, Western General Hospital, Edinburgh, UK.,Cardiff University Hospital, Cellular Pathology, Cardiff, UK
| | - Javier A Alfaro
- Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK.,International Centre for Cancer Vaccine Science, University of Gdansk, Gdansk, Poland
| | - Fiona Lickiss
- International Centre for Cancer Vaccine Science, University of Gdansk, Gdansk, Poland
| | - Erisa Nita
- Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Jacek Kowalski
- International Centre for Cancer Vaccine Science, University of Gdansk, Gdansk, Poland
| | - Faris Naji
- Pamgene International BV, 's-Hertogenbosch, Netherlands
| | - Rudolf Nenutil
- Research Centre for Applied Molecular Oncology, Masaryk Memorial Cancer Institute, Brno, Czech Republic
| | - Kathryn L Ball
- Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Radovan Krejcir
- Research Centre for Applied Molecular Oncology, Masaryk Memorial Cancer Institute, Brno, Czech Republic
| | - Borivoj Vojtesek
- Research Centre for Applied Molecular Oncology, Masaryk Memorial Cancer Institute, Brno, Czech Republic
| | - Ted R Hupp
- Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK.,International Centre for Cancer Vaccine Science, University of Gdansk, Gdansk, Poland
| | - Paul M Brennan
- Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK .,Translational Neurosurgery, Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK
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4
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Huang XL, Khan MI, Wang J, Ali R, Ali SW, Zahra QUA, Kazmi A, Lolai A, Huang YL, Hussain A, Bilal M, Li F, Qiu B. Role of receptor tyrosine kinases mediated signal transduction pathways in tumor growth and angiogenesis-New insight and futuristic vision. Int J Biol Macromol 2021; 180:739-752. [PMID: 33737188 DOI: 10.1016/j.ijbiomac.2021.03.075] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 03/13/2021] [Accepted: 03/13/2021] [Indexed: 12/18/2022]
Abstract
In the past two decades, significant progress has been made in the past two decades towards the understanding of the basic mechanisms underlying cancer growth and angiogenesis. In this context, receptor tyrosine kinases (RTKs) play a pivotal role in cell proliferation, differentiation, growth, motility, invasion, and angiogenesis, all of which contribute to tumor growth and progression. Mutations in RTKs lead to abnormal signal transductions in several pathways such as Ras-Raf, MEK-MAPK, PI3K-AKT and mTOR pathways, affecting a wide range of biological functions including cell proliferation, survival, migration and vascular permeability. Increasing evidence demonstrates that multiple kinases are involved in angiogenesis including RTKs such as vascular endothelial growth factor, platelet derived growth factor, epidermal growth factor, insulin-like growth factor-1, macrophage colony-stimulating factor, nerve growth factor, fibroblast growth factor, Hepatocyte Growth factor, Tie 1 & 2, Tek, Flt-3, Flt-4 and Eph receptors. Overactivation of RTKs and its downstream regulation is implicated in tumor initiation and angiogenesis, representing one of the hallmarks of cancer. This review discusses the role of RTKs, PI3K, and mTOR, their involvement, and their implication in pro-oncogenic cellular processes and angiogenesis with effective approaches and newly approved drugs to inhibit their unrestrained action.
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Affiliation(s)
- Xiao Lin Huang
- School of Computer Science and Technology, University of Science and Technology of China, Hefei, Anhui 230027, China
| | - Muhammad Imran Khan
- Hefei National Lab for Physical Sciences at the Microscale and the Centers for Biomedical Engineering, University of Science and Technology of China, Hefei, Anhui 230027, China.
| | - Jing Wang
- First Affiliated Hospital of University of Science and Technology of China Hefei, Anhui 230036, China
| | - Rizwan Ali
- Hefei National Lab for Physical Sciences at the Microscale and the Centers for Biomedical Engineering, University of Science and Technology of China, Hefei, Anhui 230027, China
| | - Syed Wajahat Ali
- Hefei National Lab for Physical Sciences at the Microscale and the Centers for Biomedical Engineering, University of Science and Technology of China, Hefei, Anhui 230027, China
| | - Qurat-Ul-Ain Zahra
- Hefei National Lab for Physical Sciences at the Microscale and the Centers for Biomedical Engineering, University of Science and Technology of China, Hefei, Anhui 230027, China
| | - Ahsan Kazmi
- Department of Pathology, Al-Nafees Medical College and Hospital, Isra University, Islamabad 45600, Pakistan
| | - Arbelo Lolai
- School of Computer Science and Technology, University of Science and Technology of China, Hefei, Anhui 230027, China
| | - Yu Lin Huang
- School of Computer Science and Technology, University of Science and Technology of China, Hefei, Anhui 230027, China
| | - Alamdar Hussain
- Department of Laboratory Medicine, Karolinska Institutet, Karolinska Hospital, Huddinge, SE 141 86 Stockholm, Sweden; Department of Biosciences, COMSATS Institute of Information Technology, Chak Shahzad Campus, Islamabad 44000, Pakistan
| | - Muhammad Bilal
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian 223003, China
| | - Fenfen Li
- Hefei National Lab for Physical Sciences at the Microscale and the Centers for Biomedical Engineering, University of Science and Technology of China, Hefei, Anhui 230027, China.
| | - Bensheng Qiu
- Hefei National Lab for Physical Sciences at the Microscale and the Centers for Biomedical Engineering, University of Science and Technology of China, Hefei, Anhui 230027, China.
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5
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Samuels AL, Louw A, Zareie R, Ingley E. Control of nuclear-cytoplasmic shuttling of Ankrd54 by PKCδ. World J Biol Chem 2017; 8:163-174. [PMID: 28924458 PMCID: PMC5579962 DOI: 10.4331/wjbc.v8.i3.163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Revised: 04/28/2017] [Accepted: 05/15/2017] [Indexed: 02/05/2023] Open
Abstract
AIM To identify and characterize the effect of phosphorylation on the subcellular localization of Ankrd54.
METHODS HEK293T cells were treated with calyculin A, staurosporin or phorbol 12-myristate 13-acetate (PMA). Cells were transfected with eGFP-tagged Ankrd54 with or without Lyn tyrosine kinase (wild-type, Y397F mutant, or Y508F mutant). The subcellular localization was assessed by immunofluorescence imaging of cells, immunoblotting of subcellular fractionations. The phosphorylation of Ankrd54 was monitored using Phos-tagTM gel retardation. Phosphorylated peptides were analysed by multiple-reaction-monitoring (MRM) proteomic analysis.
RESULTS Activation of PKC kinases using PMA promoted nuclear export of Ankrd54 and correlated with increased Ankrd54 phosphorylation, assayed using Phos-tagTM gel retardation. Co-expression of an active form of the PKCδ isoform specifically promoted both phosphorylation and cytoplasmic localization of Ankrd54, while PKCδ, Akt and PKA did not. Alanine mutation of several serine residues in the amino-terminal region of Ankrd54 (Ser14, Ser17, Ser18, Ser19) reduced both PMA induced cytoplasmic localization and phosphorylation of Ankrd54. Using MRM proteomic analysis, phosphorylation of the Ser18 residue of Ankrd54 was readily detectable in response to PMA stimulation. PMA stimulation of cells co-expressing Ankrd54 and Lyn tyrosine kinase displayed increased co-immunoprecipitation and enhanced co-localization in the cytoplasm.
CONCLUSION We identify phosphorylation by PKCδ as a major regulator of nuclear-cytoplasmic shuttling of Ankrd54, and its interaction with the tyrosine kinase Lyn.
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Affiliation(s)
- Amy L Samuels
- Cell Signalling Group, Harry Perkins Institute of Medical Research and Centre for Medical Research, the University of Western Australia, Nedlands, WA 6009, Australia
| | - Alison Louw
- Cell Signalling Group, Harry Perkins Institute of Medical Research and Centre for Medical Research, the University of Western Australia, Nedlands, WA 6009, Australia
| | - Reza Zareie
- Proteomics International Laboratories Ltd, Nedlands, WA 6009, Australia
- Proteowa Pty Ltd, SABC, Murdoch University, Murdoch, WA 6150, Australia
| | - Evan Ingley
- Cell Signalling Group, Harry Perkins Institute of Medical Research and Centre for Medical Research, the University of Western Australia, Nedlands, WA 6009, Australia
- Cell Signalling Group, School of Veterinary and Health Sciences, Murdoch University, Murdoch, WA 6150, Australia.
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6
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Gustafsson MO, Mohammad DK, Ylösmäki E, Choi H, Shrestha S, Wang Q, Nore BF, Saksela K, Smith CIE. ANKRD54 preferentially selects Bruton's Tyrosine Kinase (BTK) from a Human Src-Homology 3 (SH3) domain library. PLoS One 2017; 12:e0174909. [PMID: 28369144 PMCID: PMC5378395 DOI: 10.1371/journal.pone.0174909] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Accepted: 03/17/2017] [Indexed: 11/19/2022] Open
Abstract
Bruton's Tyrosine Kinase (BTK) is a cytoplasmic protein tyrosine kinase with a fundamental role in B-lymphocyte development and activation. The nucleocytoplasmic shuttling of BTK is specifically modulated by the Ankyrin Repeat Domain 54 (ANKRD54) protein and the interaction is known to be exclusively SH3-dependent. To identify the spectrum of the ANKRD54 SH3-interactome, we applied phage-display screening of a library containing all the 296 human SH3 domains. The BTK-SH3 domain was the prime interactor. Quantitative western blotting analysis demonstrated the accuracy of the screening procedure. Revealing the spectrum and specificity of ANKRD54-interactome is a critical step toward functional analysis in cells and tissues.
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Affiliation(s)
- Manuela O. Gustafsson
- Department of Laboratory Medicine, Clinical Research Center, Karolinska Institutet, Karolinska University Hospital Huddinge, SE Stockholm, Sweden
| | - Dara K. Mohammad
- Department of Laboratory Medicine, Clinical Research Center, Karolinska Institutet, Karolinska University Hospital Huddinge, SE Stockholm, Sweden
- Department of Biology, College of Science, Salahaddin University-Erbil, Erbil, Kurdistan Region-Iraq
| | - Erkko Ylösmäki
- Department of Virology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Hyunseok Choi
- Department of Virology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Subhash Shrestha
- Department of Virology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Qing Wang
- Department of Laboratory Medicine, Clinical Research Center, Karolinska Institutet, Karolinska University Hospital Huddinge, SE Stockholm, Sweden
| | - Beston F. Nore
- Department of Laboratory Medicine, Clinical Research Center, Karolinska Institutet, Karolinska University Hospital Huddinge, SE Stockholm, Sweden
- Department of Biochemistry, School of Medicine, Faculty of Medical Sciences, University of Sulaimani, Sulaimani, Iraq
- Department of Health, Kurdistan Institution for Strategic Studies and Scientific Research (KISSSR), Sulaimani, Kurdistan-Iraq
| | - Kalle Saksela
- Department of Virology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - C. I. Edvard Smith
- Department of Laboratory Medicine, Clinical Research Center, Karolinska Institutet, Karolinska University Hospital Huddinge, SE Stockholm, Sweden
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7
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Althubiti M, Rada M, Samuel J, Escorsa JM, Najeeb H, Lee KG, Lam KP, Jones GDD, Barlev NA, Macip S. BTK Modulates p53 Activity to Enhance Apoptotic and Senescent Responses. Cancer Res 2016; 76:5405-14. [PMID: 27630139 DOI: 10.1158/0008-5472.can-16-0690] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Accepted: 06/28/2016] [Indexed: 11/16/2022]
Abstract
p53 is a tumor suppressor that prevents the emergence of transformed cells by inducing apoptosis or senescence, among other responses. Its functions are regulated tightly by posttranslational modifications. Here we show that Bruton's tyrosine kinase (BTK) is a novel modulator of p53. We found that BTK is induced in response to DNA damage and p53 activation. BTK induction leads to p53 phosphorylation, which constitutes a positive feedback loop that increases p53 protein levels and enhances the transactivation of its target genes in response to stress. Inhibiting BTK reduced both p53-dependent senescence and apoptosis. Further, BTK expression also upregulated DNA damage signals and apoptosis. We conclude that despite being involved in oncogenic signals in blood malignancies, BTK has antineoplastic properties in other contexts, such as the enhancement of p53's tumor suppressor responses. Along with evidence that BTK expression correlates with good prognosis in some epithelial tumors, our findings may encourage a reevaluation of the clinical uses of BTK inhibitors in cancer therapy. Cancer Res; 76(18); 5405-14. ©2016 AACR.
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Affiliation(s)
- Mohammad Althubiti
- Mechanisms of Cancer and Aging Laboratory, Department of Molecular and Cell Biology, University of Leicester, Leicester, United Kingdom. Cancer Research UK Leicester Centre, Leicester, United Kingdom. Department of Biochemistry, Faculty of Medicine, Umm Al-Qura University, Mecca, Saudi Arabia
| | - Miran Rada
- Mechanisms of Cancer and Aging Laboratory, Department of Molecular and Cell Biology, University of Leicester, Leicester, United Kingdom. Cancer Research UK Leicester Centre, Leicester, United Kingdom. Department of Biology, School of Science, Faculty of Science and Education Sciences, University of Sulaimani, Sulaimaniyah, Kurdistan Region, Iraq
| | - Jesvin Samuel
- Mechanisms of Cancer and Aging Laboratory, Department of Molecular and Cell Biology, University of Leicester, Leicester, United Kingdom. Cancer Research UK Leicester Centre, Leicester, United Kingdom
| | - Josep M Escorsa
- Mechanisms of Cancer and Aging Laboratory, Department of Molecular and Cell Biology, University of Leicester, Leicester, United Kingdom. Cancer Research UK Leicester Centre, Leicester, United Kingdom
| | - Hishyar Najeeb
- Cancer Research UK Leicester Centre, Leicester, United Kingdom. Department of Cancer Studies, University of Leicester, Leicester, United Kingdom
| | - Koon-Guan Lee
- Bioprocessing Technology Institute, A*STAR, Singapore
| | - Kong-Peng Lam
- Bioprocessing Technology Institute, A*STAR, Singapore
| | - George D D Jones
- Cancer Research UK Leicester Centre, Leicester, United Kingdom. Department of Cancer Studies, University of Leicester, Leicester, United Kingdom
| | | | - Salvador Macip
- Mechanisms of Cancer and Aging Laboratory, Department of Molecular and Cell Biology, University of Leicester, Leicester, United Kingdom. Cancer Research UK Leicester Centre, Leicester, United Kingdom.
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8
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Mohammad DK, Nore BF, Gustafsson MO, Mohamed AJ, Smith CIE. Protein kinase B (AKT) regulates SYK activity and shuttling through 14-3-3 and importin 7. Int J Biochem Cell Biol 2016; 78:63-74. [PMID: 27381982 DOI: 10.1016/j.biocel.2016.06.024] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Revised: 05/24/2016] [Accepted: 06/30/2016] [Indexed: 01/10/2023]
Abstract
The Protein kinase B (AKT) regulates a plethora of intracellular signaling proteins to fine-tune signaling of multiple pathways. Here, we found that following B-cell receptor (BCR)-induced tyrosine phosphorylation of the cytoplasmic tyrosine kinase SYK and the adaptor BLNK, the AKT/PKB enzyme strongly induced BLNK (>100-fold) and SYK (>100-fold) serine/threonine phosphorylation (pS/pT). Increased phosphorylation promoted 14-3-3 binding to BLNK (37-fold) and SYK (2.5-fold) in a pS/pT-concentration dependent manner. We also demonstrated that the AKT inhibitor MK2206 reduced pS/pT of both BLNK (3-fold) and SYK (2.5-fold). Notably, the AKT phosphatase, PHLPP2 maintained the activating phosphorylation of BLNK at Y84 and increased protein stability (8.5-fold). In addition, 14-3-3 was required for the regulation SYK's interaction with BLNK and attenuated SYK binding to Importin 7 (5-fold), thereby perturbing shuttling to the nucleus. Moreover, 14-3-3 proteins also sustained tyrosine phosphorylation of SYK and BLNK. Furthermore, substitution of S295 or S297 for alanine abrogated SYK's binding to Importin 7. SYK with S295A or S297A replacements showed intense pY525/526 phosphorylation, and BLNK pY84 phosphorylation correlated with the SYK pY525/526 phosphorylation level. Conversely, the corresponding mutations to aspartic acid in SYK reduced pY525/526 phosphorylation. Collectively, these and previous results suggest that AKT and 14-3-3 proteins down-regulate the activity of several BCR-associated components, including BTK, BLNK and SYK and also inhibit SYK's interaction with Importin 7.
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Affiliation(s)
- Dara K Mohammad
- Department of Laboratory Medicine, Clinical Research Center, Karolinska Institutet, Karolinska Hospital Huddinge, SE-141 86 Huddinge, Stockholm, Sweden; Department of Biology, College of Science, University of Salahaddin, Erbil, Kurdistan Region, Iraq.
| | - Beston F Nore
- Department of Laboratory Medicine, Clinical Research Center, Karolinska Institutet, Karolinska Hospital Huddinge, SE-141 86 Huddinge, Stockholm, Sweden; Department of Biochemistry, School of Medicine, University of Sulaimani, Sulaimaniyah, Kurdistan Region, Iraq
| | - Manuela O Gustafsson
- Department of Laboratory Medicine, Clinical Research Center, Karolinska Institutet, Karolinska Hospital Huddinge, SE-141 86 Huddinge, Stockholm, Sweden
| | - Abdalla J Mohamed
- Universiti Brunei Darussalam, Environmental and Life Sciences, Faculty of Science, Jalan Tungku Link, Gadong BE1410 Negara Brunei Darussalam, Brunei
| | - C I Edvard Smith
- Department of Laboratory Medicine, Clinical Research Center, Karolinska Institutet, Karolinska Hospital Huddinge, SE-141 86 Huddinge, Stockholm, Sweden.
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9
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Substitution scanning identifies a novel, catalytically active ibrutinib-resistant BTK cysteine 481 to threonine (C481T) variant. Leukemia 2016; 31:177-185. [PMID: 27282255 PMCID: PMC5220130 DOI: 10.1038/leu.2016.153] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2015] [Revised: 05/11/2016] [Accepted: 05/18/2016] [Indexed: 01/01/2023]
Abstract
Irreversible Bruton tyrosine kinase (BTK) inhibitors, ibrutinib and acalabrutinib have demonstrated remarkable clinical responses in multiple B-cell malignancies. Acquired resistance has been identified in a sub-population of patients in which mutations affecting BTK predominantly substitute cysteine 481 in the kinase domain for catalytically active serine, thereby ablating covalent binding of inhibitors. Activating substitutions in the BTK substrate phospholipase Cγ2 (PLCγ2) instead confers resistance independent of BTK. Herein, we generated all six possible amino acid substitutions due to single nucleotide alterations for the cysteine 481 codon, in addition to threonine, requiring two nucleotide substitutions, and performed functional analysis. Replacement by arginine, phenylalanine, tryptophan or tyrosine completely inactivated the catalytic activity, whereas substitution with glycine caused severe impairment. BTK with threonine replacement was catalytically active, similar to substitution with serine. We identify three potential ibrutinib resistance scenarios for cysteine 481 replacement: (1) Serine, being catalytically active and therefore predominating among patients. (2) Threonine, also being catalytically active, but predicted to be scarce, because two nucleotide changes are needed. (3) As BTK variants replaced with other residues are catalytically inactive, they presumably need compensatory mutations, therefore being very scarce. Glycine and tryptophan variants were not yet reported but likely also provide resistance.
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10
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Guendel I, Iordanskiy S, Sampey GC, Van Duyne R, Calvert V, Petricoin E, Saifuddin M, Kehn-Hall K, Kashanchi F. Role of Bruton's tyrosine kinase inhibitors in HIV-1-infected cells. J Neurovirol 2015; 21:257-75. [PMID: 25672887 DOI: 10.1007/s13365-015-0323-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Accepted: 01/23/2015] [Indexed: 11/26/2022]
Abstract
Many cellular cofactors have been documented to be critical for various stages of viral replication. Using high-throughput proteomic assays, we have previously identified Bruton's tyrosine kinase (BTK) as a host protein that was uniquely upregulated in the plasma membrane of human immunodeficiency virus (HIV-1)-infected T cells. Here, we have further characterized the BTK expression in HIV-1 infection and show that this cellular factor is specifically expressed in infected myeloid cells. Significant upregulation of the phosphorylated form of BTK was observed in infected cells. Using size exclusion chromatography, we found BTK to be virtually absent in the uninfected U937 cells; however, new BTK protein complexes were identified and distributed in both high molecular weight (∼600 kDa) and a small molecular weight complex (∼60-120 kDa) in the infected U1 cells. BTK levels were highest in cells either chronically expressing virus or induced/infected myeloid cells and that BTK translocated to the membrane following induction of the infected cells. BTK knockdown in HIV-1-infected cells using small interfering RNA (siRNA) resulted in selective death of infected, but not uninfected, cells. Using BTK-specific antibody and small-molecule inhibitors including LFM-A13 and a FDA-approved compound, ibrutinib (PCI-32765), we have found that HIV-1-infected cells are sensitive to apoptotic cell death and result in a decrease in virus production. Overall, our data suggests that HIV-1-infected cells are sensitive to treatments targeting BTK expressed in infected cells.
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Affiliation(s)
- Irene Guendel
- Department of Systems Biology, National Center for Biodefense and Infectious Diseases, George Mason University, Manassas, VA, 20110, USA
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Corneth OBJ, Klein Wolterink RGJ, Hendriks RW. BTK Signaling in B Cell Differentiation and Autoimmunity. Curr Top Microbiol Immunol 2015; 393:67-105. [PMID: 26341110 DOI: 10.1007/82_2015_478] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Since the original identification of Bruton's tyrosine kinase (BTK) as the gene defective in the primary immunodeficiency X-linked agammaglobulinemia (XLA) in 1993, our knowledge on the physiological function of BTK has expanded impressively. In this review, we focus on the role of BTK during B cell differentiation in vivo, both in the regulation of expansion and in the developmental progression of pre-B cells in the bone marrow and as a crucial signal transducer of signals downstream of the IgM or IgG B cell antigen receptor (BCR) in mature B cells governing proliferation, survival, and differentiation. In particular, we highlight BTK function in B cells in the context of host defense and autoimmunity. Small-molecule inhibitors of BTK have very recently shown impressive anti-tumor activity in clinical studies in patients with various B cell malignancies. Since promising effects of BTK inhibition were also seen in experimental animal models for lupus and rheumatoid arthritis, BTK may be a good target for controlling autoreactive B cells in patients with systemic autoimmune disease.
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Affiliation(s)
- Odilia B J Corneth
- Department of Pulmonary Medicine, Erasmus MC Rotterdam, Room Ee2251a, PO Box 2040, NL 3000, CA, Rotterdam, The Netherlands
| | - Roel G J Klein Wolterink
- Department of Pulmonary Medicine, Erasmus MC Rotterdam, Room Ee2251a, PO Box 2040, NL 3000, CA, Rotterdam, The Netherlands
| | - Rudi W Hendriks
- Department of Pulmonary Medicine, Erasmus MC Rotterdam, Room Ee2251a, PO Box 2040, NL 3000, CA, Rotterdam, The Netherlands.
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Christie DA, Xu LS, Turkistany SA, Solomon LA, Li SKH, Yim E, Welch I, Bell GI, Hess DA, DeKoter RP. PU.1 opposes IL-7-dependent proliferation of developing B cells with involvement of the direct target gene bruton tyrosine kinase. THE JOURNAL OF IMMUNOLOGY 2014; 194:595-605. [PMID: 25505273 DOI: 10.4049/jimmunol.1401569] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Deletion of genes encoding the E26 transformation-specific transcription factors PU.1 and Spi-B in B cells (CD19-CreΔPB mice) leads to impaired B cell development, followed by B cell acute lymphoblastic leukemia at 100% incidence and with a median survival of 21 wk. However, little is known about the target genes that explain leukemogenesis in these mice. In this study we found that immature B cells were altered in frequency in the bone marrow of preleukemic CD19-CreΔPB mice. Enriched pro-B cells from CD19-CreΔPB mice induced disease upon transplantation, suggesting that these were leukemia-initiating cells. Bone marrow cells from preleukemic CD19-CreΔPB mice had increased responsiveness to IL-7 and could proliferate indefinitely in response to this cytokine. Bruton tyrosine kinase (BTK), a negative regulator of IL-7 signaling, was reduced in preleukemic and leukemic CD19-CreΔPB cells compared with controls. Induction of PU.1 expression in cultured CD19-CreΔPB pro-B cell lines induced Btk expression, followed by reduced STAT5 phosphorylation and early apoptosis. PU.1 and Spi-B regulated Btk directly as shown by chromatin immunoprecipitation analysis. Ectopic expression of BTK was sufficient to induce apoptosis in cultured pro-B cells. In summary, these results suggest that PU.1 and Spi-B activate Btk to oppose IL-7 responsiveness in developing B cells.
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Affiliation(s)
- Darah A Christie
- Centre for Human Immunology, Department of Microbiology and Immunology, University of Western Ontario, London, Ontario N6A 5C1, Canada
| | - Li S Xu
- Centre for Human Immunology, Department of Microbiology and Immunology, University of Western Ontario, London, Ontario N6A 5C1, Canada
| | - Shereen A Turkistany
- Centre for Human Immunology, Department of Microbiology and Immunology, University of Western Ontario, London, Ontario N6A 5C1, Canada
| | - Lauren A Solomon
- Centre for Human Immunology, Department of Microbiology and Immunology, University of Western Ontario, London, Ontario N6A 5C1, Canada
| | - Stephen K H Li
- Centre for Human Immunology, Department of Microbiology and Immunology, University of Western Ontario, London, Ontario N6A 5C1, Canada
| | - Edmund Yim
- Centre for Human Immunology, Department of Microbiology and Immunology, University of Western Ontario, London, Ontario N6A 5C1, Canada
| | - Ian Welch
- Department of Animal Care and Veterinary Services, University of Western Ontario, London, Ontario N6A 5C1, Canada
| | - Gillian I Bell
- Robarts Research Institute, University of Western Ontario, London, Ontario N6A 5C1, Canada; Department of Physiology and Pharmacology, University of Western Ontario, London, Ontario N6A 5C1, Canada; and
| | - David A Hess
- Robarts Research Institute, University of Western Ontario, London, Ontario N6A 5C1, Canada; Department of Physiology and Pharmacology, University of Western Ontario, London, Ontario N6A 5C1, Canada; and Division of Genetics and Development, Children's Health Research Institute, Lawson Research Institute, London, Ontario N6C 2R5, Canada
| | - Rodney P DeKoter
- Centre for Human Immunology, Department of Microbiology and Immunology, University of Western Ontario, London, Ontario N6A 5C1, Canada; Division of Genetics and Development, Children's Health Research Institute, Lawson Research Institute, London, Ontario N6C 2R5, Canada
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13
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Turetsky A, Kim E, Kohler RH, Miller MA, Weissleder R. Single cell imaging of Bruton's tyrosine kinase using an irreversible inhibitor. Sci Rep 2014; 4:4782. [PMID: 24759210 PMCID: PMC3998017 DOI: 10.1038/srep04782] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2014] [Accepted: 04/07/2014] [Indexed: 12/12/2022] Open
Abstract
A number of Bruton's tyrosine kinase (BTK) inhibitors are currently in development, yet it has been difficult to visualize BTK expression and pharmacological inhibition in vivo in real time. We synthesized a fluorescent, irreversible BTK binder based on the drug Ibrutinib and characterized its behavior in cells and in vivo. We show a 200 nM affinity of the imaging agent, high selectivity, and irreversible binding to its target following initial washout, resulting in surprisingly high target-to-background ratios. In vivo, the imaging agent rapidly distributed to BTK expressing tumor cells, but also to BTK-positive tumor-associated host cells.
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Affiliation(s)
- Anna Turetsky
- 1] Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge St, CPZN 5206, Boston, MA 02114 [2]
| | - Eunha Kim
- 1] Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge St, CPZN 5206, Boston, MA 02114 [2]
| | - Rainer H Kohler
- Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge St, CPZN 5206, Boston, MA 02114
| | - Miles A Miller
- Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge St, CPZN 5206, Boston, MA 02114
| | - Ralph Weissleder
- 1] Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge St, CPZN 5206, Boston, MA 02114 [2] Department of Systems Biology, Harvard Medical School, 200 Longwood Ave, Boston, MA 02115
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Abstract
Bruton's tyrosine kinase (BTK) is a key component of B cell receptor (BCR) signalling and functions as an important regulator of cell proliferation and cell survival in various B cell malignancies. Small-molecule inhibitors of BTK have shown antitumour activity in animal models and, recently, in clinical studies. High response rates were reported in patients with chronic lymphocytic leukaemia and mantle cell lymphoma. Remarkably, BTK inhibitors have molecular effects that cannot be explained by the classic role of BTK in BCR signalling. In this Review, we highlight the importance of BTK in various signalling pathways in the context of its therapeutic inhibition.
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Affiliation(s)
- Rudi W Hendriks
- Department of Pulmonary Medicine, Room Ee2251a, Erasmus MC Rotterdam, PO Box 2040, NL 3000 CA Rotterdam, the Netherlands
| | - Saravanan Yuvaraj
- Department of Pulmonary Medicine, Room Ee2251a, Erasmus MC Rotterdam, PO Box 2040, NL 3000 CA Rotterdam, the Netherlands
| | - Laurens P Kil
- Department of Pulmonary Medicine, Room Ee2251a, Erasmus MC Rotterdam, PO Box 2040, NL 3000 CA Rotterdam, the Netherlands
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15
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Vargas L, Hamasy A, Nore BF, E. Smith CI. Inhibitors of BTK and ITK: State of the New Drugs for Cancer, Autoimmunity and Inflammatory Diseases. Scand J Immunol 2013; 78:130-9. [DOI: 10.1111/sji.12069] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2012] [Accepted: 05/05/2013] [Indexed: 01/01/2023]
Affiliation(s)
- L. Vargas
- Department of Laboratory Medicine; Clinical Research Center; Karolinska Institutet; Karolinska University Hospital; Huddinge; Sweden
| | | | | | - C. I. E. Smith
- Department of Laboratory Medicine; Clinical Research Center; Karolinska Institutet; Karolinska University Hospital; Huddinge; Sweden
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Dual phosphorylation of Btk by Akt/protein kinase b provides docking for 14-3-3ζ, regulates shuttling, and attenuates both tonic and induced signaling in B cells. Mol Cell Biol 2013; 33:3214-26. [PMID: 23754751 DOI: 10.1128/mcb.00247-13] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Bruton's tyrosine kinase (Btk) is crucial for B-lymphocyte activation and development. Mutations in the Btk gene cause X-linked agammaglobulinemia (XLA) in humans and X-linked immunodeficiency (Xid) in mice. Using tandem mass spectrometry, 14-3-3ζ was identified as a new binding partner and negative regulator of Btk in both B-cell lines and primary B lymphocytes. The activated serine/threonine kinase Akt/protein kinase B (PKB) phosphorylated Btk on two sites prior to 14-3-3ζ binding. The interaction sites were mapped to phosphoserine pS51 in the pleckstrin homology domain and phosphothreonine pT495 in the kinase domain. The double-alanine, S51A/T495A, replacement mutant failed to bind 14-3-3ζ, while phosphomimetic aspartate substitutions, S51D/T495D, caused enhanced interaction. The phosphatidylinositol 3-kinase (PI3-kinase) inhibitor LY294002 abrogated S51/T495 phosphorylation and binding. A newly characterized 14-3-3 inhibitor, BV02, reduced binding, as did the Btk inhibitor PCI-32765 (ibrutinib). Interestingly, in the presence of BV02, phosphorylation of Btk, phospholipase Cγ2, and NF-κB increased strongly, suggesting that 14-3-3 also regulates B-cell receptor (BCR)-mediated tonic signaling. Furthermore, downregulation of 14-3-3ζ elevated nuclear translocation of Btk. The loss-of-function mutant S51A/T495A showed reduced tyrosine phosphorylation and ubiquitination. Conversely, the gain-of-function mutant S51D/T495D exhibited intense tyrosine phosphorylation, associated with Btk ubiquitination and degradation, likely contributing to the termination of BCR signaling. Collectively, this suggests that Btk could become an important new candidate for the general study of 14-3-3-mediated regulation.
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18
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Zhang KJ, Wang M. Potential effects of CRM1 inhibition in mantle cell lymphoma. Chin J Cancer Res 2013; 24:374-87. [PMID: 23357869 DOI: 10.3978/j.issn.1000-9604.2012.09.05] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2011] [Accepted: 02/08/2012] [Indexed: 12/14/2022] Open
Abstract
Mantle cell lymphoma (MCL) is an aggressive histotype of B-cell non-Hodgkin lymphoma. The disease has no known cure, which prompts the urgent need for novel therapeutic agents. Chromosomal region maintenance 1 (CRM1) may play a role in human neoplasia and serve as a novel target of cancer treatment. This study summarizes MCL pathogenesis and determines the involvement of CRM1 in the regulation of several vital signaling pathways contributing to MCL pathogenesis, including the pathways of cell cycle progression, DNA damage response, phosphoinositide kinase-3, nuclear factor-κB activation, and chromosomal stability. A preclinical study is also presented to compare the CRM1 status in MCL cell lines and primary MCL cells with normal B cells, as well as the therapeutic efficiency of CRM1 inhibition in MCL in vitro and in vivo, which make these agents potential targets of novel MCL treatments.
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Affiliation(s)
- Ke-Jie Zhang
- Department of Hematology, Zhongshan Hospital, Xiamen University, Xiamen 361004, China; ; Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, Houston 77030, USA
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