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Saberiyan M, Zarei M, Safi A, Movahhed P, Khorasanian R, Adelian S, Mousavi P. The role of DAPK2 as a key regulatory element in various human cancers: a systematic review. Mol Biol Rep 2024; 51:886. [PMID: 39105958 DOI: 10.1007/s11033-024-09761-6] [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: 05/01/2024] [Accepted: 06/26/2024] [Indexed: 08/07/2024]
Abstract
Cancer is considered the uncontrolled growth and spread of cells into neighboring tissues, a process governed at the molecular level by many different factors, including abnormalities in the protein family's death-associated kinase (DAPK). DAPK2 is a member of the DAPK protein family, which plays essential roles in several cellular processes. DAPK2 acts as a tumor suppressor, interacting with several proteins, such as TNF, IFN, etc. during apoptosis and autophagy. Expression of DAPK2 causes changes in the structure of the cell, ultimately leading to cell death by apoptosis. In this essay, studies are obtained from Scopus, PubMed, and the Web of Science. According to these investigations, DAPK2 activates autophagy by interacting with AMPK, mTORC1, and p73. Furthermore, DAPK2 induces apoptosis pathway via interacting with the p73 family and JNK. In general, due to the vital role of DAPK2 in cell physiology and its effect on various factors and signaling pathways, it can be a potent target in the treatment of various cancers, including gastric, ovarian, breast, and other prominent cancers.
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Affiliation(s)
- Mohammadreza Saberiyan
- Student Research Committee, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Mahboobeh Zarei
- Department of Medical Genetics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Amir Safi
- Department of Clinical Biochemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Parvaneh Movahhed
- Department of Medical Laboratory Sciences, School of Allied Medical Sciences, ShahidBeheshti University of Medical Sciences, Tehran, Iran
| | - Reihane Khorasanian
- Department of Medical Genetics and Molecular Biology, Faculty of Medicine, Iran University of Medical Sciences (IUMS), Tehran, Iran
| | - Samaneh Adelian
- Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Pegah Mousavi
- Molecular Medicine Research Center, Hormozgan Health Institute, Hormozgan University of Medical Sciences, Bandar Abbas, Iran.
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2
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Zhang L, Luo B, Lu Y, Chen Y. Targeting Death-Associated Protein Kinases for Treatment of Human Diseases: Recent Advances and Future Directions. J Med Chem 2023; 66:1112-1136. [PMID: 36645394 DOI: 10.1021/acs.jmedchem.2c01606] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
The death-associated protein kinase (DAPK) family is a member of the calcium/calmodulin-regulated serine/threonine protein kinase family, and studies have shown that its role, as its name suggests, is mainly to regulate cell death. The DAPK family comprises five members, including DAPK1, DAPK2, DAPK3, DRAK1 and DRAK2, which show high homology in the common N-terminal kinase domain but differ in the extra-catalytic domain. Notably, previous research has suggested that the DAPK family plays an essential role in both the development and regulation of human diseases. However, only a few small-molecule inhibitors have been reported. In this Perspective, we mainly discuss the structure, biological function, and role of DAPKs in diseases and the currently discovered small-molecule inhibitors, providing valuable information for the development of the DAPK field.
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Affiliation(s)
- Lan Zhang
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, China
| | - Boqin Luo
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, China
| | - Yingying Lu
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, China
| | - Yi Chen
- State Key Laboratory of Biotherapy and Cancer Center and Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
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3
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Chen HM, MacDonald JA. Death-associated protein kinases and intestinal epithelial homeostasis. Anat Rec (Hoboken) 2022; 306:1062-1087. [PMID: 35735750 DOI: 10.1002/ar.25022] [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: 02/24/2022] [Revised: 05/12/2022] [Accepted: 06/06/2022] [Indexed: 12/15/2022]
Abstract
The family of death-associated protein kinases (DAPKs) and DAPK-related apoptosis-inducing protein kinases (DRAKs) act as molecular switches for a multitude of cellular processes, including apoptotic and autophagic cell death events. This review summarizes the mechanisms for kinase activity regulation and discusses recent molecular investigations of DAPK and DRAK family members in the intestinal epithelium. In general, recent literature convincingly supports the importance of this family of protein kinases in the homeostatic processes that govern the proper function of the intestinal epithelium. Each of the DAPK family of proteins possesses distinct biochemical properties, and we compare similarities in the information available as well as those cases where functional distinctions are apparent. As the prototypical member of the family, DAPK1 is noteworthy for its tumor suppressor function and association with colorectal cancer. In the intestinal epithelium, DAPK2 is associated with programmed cell death, potential tumor-suppressive functions, and a unique influence on granulocyte biology. The impact of the DRAKs in the epithelium is understudied, but recent studies support a role for DRAK1 in inflammation-mediated tumor growth and metastasis. A commentary is provided on the potential importance of DAPK3 in facilitating epithelial restitution and wound healing during the resolution of colitis. An update on efforts to develop selective pharmacologic effectors of individual DAPK members is also supplied.
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Affiliation(s)
- Huey-Miin Chen
- Department of Biochemistry & Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Justin A MacDonald
- Department of Biochemistry & Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
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4
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Laporta J, Dado-Senn B, Skibiel AL. Late gestation hyperthermia: epigenetic programming of daughter's mammary development and function. Domest Anim Endocrinol 2022; 78:106681. [PMID: 34600221 DOI: 10.1016/j.domaniend.2021.106681] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 09/01/2021] [Accepted: 09/02/2021] [Indexed: 12/30/2022]
Abstract
Exposure to stressors during early developmental windows, such as prenatally (i.e., in utero), can have life-long implications for an animal's health and productivity. The mammary gland starts developing in utero and, like other developing tissues and organs, may undergo fetal programming. Previous research has implicated factors, such as prenatal exposure to endocrine disruptors or alterations in maternal diet (e.g., maternal over or undernutrition), that can influence the developmental trajectory of the offspring mammary gland in postnatal life. However, the direct links between prenatal insults and future productive outcomes are less documented in livestock species. Research on in utero hyperthermia effects on early-life mammary development is scarce. This review will provide an overview of key developmental milestones taking place in the bovine mammary gland during the pre- and postnatal stages. We will showcase how intrauterine hyperthermia, experienced by the developing fetus during the last trimester of gestation, derails postnatal mammary gland development and impairs its synthetic capacity later in life. We will provide insights into the underlying histological, cellular, and molecular mechanisms taking place at key postnatal developmental life stages, including birth, weaning and the first lactation, that might explain permanent detriments in productivity long after the initial exposure to hyperthermia. Collectively, our studies indicate that prenatal hyperthermia jeopardizes the normal developmental trajectory of the mammary gland from fetal development to lactation. Further, in utero hyperthermia epigenetically programs the udder, and possibly other organs critical to lactation, yielding a less resilient and less productive cow for multiple lactations.
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Affiliation(s)
- J Laporta
- Department of Animal and Dairy Sciences, University of Wisconsin, Madison, USA.
| | - B Dado-Senn
- Department of Animal and Dairy Sciences, University of Wisconsin, Madison, USA
| | - A L Skibiel
- Department of Animal, Veterinary and Food Sciences, University of Idaho, Idaho, USA
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5
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Horvath M, Petrvalska O, Herman P, Obsilova V, Obsil T. 14-3-3 proteins inactivate DAPK2 by promoting its dimerization and protecting key regulatory phosphosites. Commun Biol 2021; 4:986. [PMID: 34413451 PMCID: PMC8376927 DOI: 10.1038/s42003-021-02518-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 08/03/2021] [Indexed: 01/05/2023] Open
Abstract
Death-associated protein kinase 2 (DAPK2) is a CaM-regulated Ser/Thr protein kinase, involved in apoptosis, autophagy, granulocyte differentiation and motility regulation, whose activity is controlled by autoinhibition, autophosphorylation, dimerization and interaction with scaffolding proteins 14-3-3. However, the structural basis of 14-3-3-mediated DAPK2 regulation remains unclear. Here, we structurally and biochemically characterize the full-length human DAPK2:14-3-3 complex by combining several biophysical techniques. The results from our X-ray crystallographic analysis revealed that Thr369 phosphorylation at the DAPK2 C terminus creates a high-affinity canonical mode III 14-3-3-binding motif, further enhanced by the diterpene glycoside Fusicoccin A. Moreover, concentration-dependent DAPK2 dimerization is disrupted by Ca2+/CaM binding and stabilized by 14-3-3 binding in solution, thereby protecting the DAPK2 inhibitory autophosphorylation site Ser318 against dephosphorylation and preventing Ca2+/CaM binding. Overall, our findings provide mechanistic insights into 14-3-3-mediated DAPK2 inhibition and highlight the potential of the DAPK2:14-3-3 complex as a target for anti‐inflammatory therapies. Horvath et al. structurally and biochemically characterize the full-length human DAPK2-14-3-3 complex to investigate the effects of binding to DAPK2 on its dimerization, activation by dephosphorylation of Ser318, and Ca2+/calmodulin binding. Their results provide mechanistic insights into 14- 3-3-mediated DAPK2 inhibition and highlight the potential of the DAPK2:14-3-3 complex as a target for anti-inflammatory therapies.
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Affiliation(s)
- Matej Horvath
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Prague, Czech Republic.,Department of Structural Biology of Signaling Proteins, Division BIOCEV, Institute of Physiology of the Czech Academy of Sciences, Vestec, Czech Republic
| | - Olivia Petrvalska
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Prague, Czech Republic.,Department of Structural Biology of Signaling Proteins, Division BIOCEV, Institute of Physiology of the Czech Academy of Sciences, Vestec, Czech Republic
| | - Petr Herman
- Institute of Physics, Faculty of Mathematics and Physics, Charles University, Prague, Czech Republic
| | - Veronika Obsilova
- Department of Structural Biology of Signaling Proteins, Division BIOCEV, Institute of Physiology of the Czech Academy of Sciences, Vestec, Czech Republic.
| | - Tomas Obsil
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Prague, Czech Republic. .,Department of Structural Biology of Signaling Proteins, Division BIOCEV, Institute of Physiology of the Czech Academy of Sciences, Vestec, Czech Republic.
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6
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Novel Functions of Death-Associated Protein Kinases through Mitogen-Activated Protein Kinase-Related Signals. Int J Mol Sci 2018; 19:ijms19103031. [PMID: 30287790 PMCID: PMC6213522 DOI: 10.3390/ijms19103031] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 10/01/2018] [Accepted: 10/01/2018] [Indexed: 01/05/2023] Open
Abstract
Death associated protein kinase (DAPK) is a calcium/calmodulin-regulated serine/threonine kinase; its main function is to regulate cell death. DAPK family proteins consist of DAPK1, DAPK2, DAPK3, DAPK-related apoptosis-inducing protein kinases (DRAK)-1 and DRAK-2. In this review, we discuss the roles and regulatory mechanisms of DAPK family members and their relevance to diseases. Furthermore, a special focus is given to several reports describing cross-talks between DAPKs and mitogen-activated protein kinases (MAPK) family members in various pathologies. We also discuss small molecule inhibitors of DAPKs and their potential as therapeutic targets against human diseases.
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7
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Wilson TJ, Zamler DB, Doherty R, Castro MG, Lowenstein PR. Reversibility of glioma stem cells' phenotypes explains their complex in vitro and in vivo behavior: Discovery of a novel neurosphere-specific enzyme, cGMP-dependent protein kinase 1, using the genomic landscape of human glioma stem cells as a discovery tool. Oncotarget 2018; 7:63020-63041. [PMID: 27564115 PMCID: PMC5325344 DOI: 10.18632/oncotarget.11589] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Accepted: 08/13/2016] [Indexed: 11/25/2022] Open
Abstract
Glioma cells grow in two phenotypic forms, as adherent monolayers and as free floating “neurospheres/tumorspheres”, using specific media supplements. Whether each phenotype is irreversible remains unknown. Herein we show that both states are reversible using patient derived glioblastoma cell cultures (i.e., HF2303, IN859, MGG8, IN2045). Both phenotypic states differ in proliferation rate, invasion, migration, chemotaxis and chemosensitivity. We used microarrays to characterize gene expression across the patient derived glioblastoma cell cultures, to find specific inhibitors of the sphere population. Traditional chemotherapeutics (i.e., doxorubicin or paclitaxel) inhibit rapidly dividing adherent cells; it has been more challenging to inhibit the growth of the sphere phenotype. PRKG1, known to induce apoptosis when activated, is increased in all patient derived glioblastoma spheres. Stimulation of PRKG1 activity preferentially reduced cell viability in the sphere phenotype. Computational network and gene ontology analysis identified novel potential target genes linked to the PRKG1 expression node.
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Affiliation(s)
- Thomas J Wilson
- Department of Neurosurgery, The University of Michigan School of Medicine, Ann Arbor, MI, USA
| | - Daniel B Zamler
- Department of Neurosurgery, The University of Michigan School of Medicine, Ann Arbor, MI, USA
| | - Robert Doherty
- Department of Neurosurgery, The University of Michigan School of Medicine, Ann Arbor, MI, USA
| | - Maria G Castro
- Department of Neurosurgery, The University of Michigan School of Medicine, Ann Arbor, MI, USA.,Department of Cell and Developmental Biology, Training Programs in Cancer Biology, Immunology & Neurosciences, The University of Michigan School of Medicine, Ann Arbor, MI, USA
| | - Pedro R Lowenstein
- Department of Neurosurgery, The University of Michigan School of Medicine, Ann Arbor, MI, USA.,Department of Cell and Developmental Biology, Training Programs in Cancer Biology, Immunology & Neurosciences, The University of Michigan School of Medicine, Ann Arbor, MI, USA
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8
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Shiloh R, Gilad Y, Ber Y, Eisenstein M, Aweida D, Bialik S, Cohen S, Kimchi A. Non-canonical activation of DAPK2 by AMPK constitutes a new pathway linking metabolic stress to autophagy. Nat Commun 2018; 9:1759. [PMID: 29717115 PMCID: PMC5931534 DOI: 10.1038/s41467-018-03907-4] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Accepted: 03/21/2018] [Indexed: 12/21/2022] Open
Abstract
Autophagy is an intracellular degradation process essential for adaptation to metabolic stress. DAPK2 is a calmodulin-regulated protein kinase, which has been implicated in autophagy regulation, though the mechanism is unclear. Here, we show that the central metabolic sensor, AMPK, phosphorylates DAPK2 at a critical site in the protein structure, between the catalytic and the calmodulin-binding domains. This phosphorylation activates DAPK2 by functionally mimicking calmodulin binding and mitigating an inhibitory autophosphorylation, providing a novel, alternative mechanism for DAPK2 activation during metabolic stress. In addition, we show that DAPK2 phosphorylates the core autophagic machinery protein, Beclin-1, leading to dissociation of its inhibitor, Bcl-XL. Importantly, phosphorylation of DAPK2 by AMPK enhances DAPK2’s ability to phosphorylate Beclin-1, and depletion of DAPK2 reduces autophagy in response to AMPK activation. Our study reveals a unique calmodulin-independent mechanism for DAPK2 activation, critical to its function as a novel downstream effector of AMPK in autophagy. DAPK2 is a calmodulin-regulated protein kinase implicated in autophagy regulation, but how physiological stress leads to its activation is yet unknown. Here, the authors show that the central metabolic sensor AMPK phosphorylates DAPK2 to promote autophagy in a calmodulin-independent mechanism.
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Affiliation(s)
- Ruth Shiloh
- Department of Molecular Genetics, Weizmann Institute of Science, Rehovot, 76100, Israel
| | - Yuval Gilad
- Department of Molecular Genetics, Weizmann Institute of Science, Rehovot, 76100, Israel
| | - Yaara Ber
- Department of Molecular Genetics, Weizmann Institute of Science, Rehovot, 76100, Israel
| | - Miriam Eisenstein
- Department of Chemical Research Support, Weizmann Institute of Science, Rehovot, 76100, Israel
| | - Dina Aweida
- Faculty of Biology, Technion Israel Institute of Technology, Haifa, 32000, Israel
| | - Shani Bialik
- Department of Molecular Genetics, Weizmann Institute of Science, Rehovot, 76100, Israel
| | - Shenhav Cohen
- Faculty of Biology, Technion Israel Institute of Technology, Haifa, 32000, Israel
| | - Adi Kimchi
- Department of Molecular Genetics, Weizmann Institute of Science, Rehovot, 76100, Israel.
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9
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Nitric Oxide Production Correlates with Cell Death of Fibroblasts Treated by Bacillus pumilus Ribonuclease. BIONANOSCIENCE 2018. [DOI: 10.1007/s12668-017-0469-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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10
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Oue Y, Murakami S, Isshiki K, Tsuji A, Yuasa K. Intracellular localization and binding partners of death associated protein kinase-related apoptosis-inducing protein kinase 1. Biochem Biophys Res Commun 2018; 496:1222-1228. [DOI: 10.1016/j.bbrc.2018.01.175] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Accepted: 01/29/2018] [Indexed: 10/18/2022]
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11
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Simon B, Huart AS, Temmerman K, Vahokoski J, Mertens HDT, Komadina D, Hoffmann JE, Yumerefendi H, Svergun DI, Kursula P, Schultz C, McCarthy AA, Hart DJ, Wilmanns M. Death-Associated Protein Kinase Activity Is Regulated by Coupled Calcium/Calmodulin Binding to Two Distinct Sites. Structure 2016; 24:851-61. [PMID: 27133022 PMCID: PMC4906247 DOI: 10.1016/j.str.2016.03.020] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Revised: 02/27/2016] [Accepted: 03/10/2016] [Indexed: 01/02/2023]
Abstract
The regulation of many protein kinases by binding to calcium/calmodulin connects two principal mechanisms in signaling processes: protein phosphorylation and responses to dose- and time-dependent calcium signals. We used the calcium/calmodulin-dependent members of the death-associated protein kinase (DAPK) family to investigate the role of a basic DAPK signature loop near the kinase active site. In DAPK2, this loop comprises a novel dimerization-regulated calcium/calmodulin-binding site, in addition to a well-established calcium/calmodulin site in the C-terminal autoregulatory domain. Unexpectedly, impairment of the basic loop interaction site completely abolishes calcium/calmodulin binding and DAPK2 activity is reduced to a residual level, indicative of coupled binding to the two sites. This contrasts with the generally accepted view that kinase calcium/calmodulin interactions are autonomous of the kinase catalytic domain. Our data establish an intricate model of multi-step kinase activation and expand our understanding of how calcium binding connects with other mechanisms involved in kinase activity regulation. Members of the DAPK family share a specific basic-loop-mediated dimerization motif DAPK2 contains a kinase-mediated and dimerization-regulated CaM-binding site Autoregulatory segment CaM binding depends on kinase-mediated CaM binding DAPK2 activity is regulated by coupled CaM binding to two different sites
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Affiliation(s)
- Bertrand Simon
- European Molecular Biology Laboratory, Hamburg Unit, Notkestrasse 85, 22607 Hamburg, Germany
| | - Anne-Sophie Huart
- European Molecular Biology Laboratory, Hamburg Unit, Notkestrasse 85, 22607 Hamburg, Germany
| | - Koen Temmerman
- European Molecular Biology Laboratory, Hamburg Unit, Notkestrasse 85, 22607 Hamburg, Germany
| | - Juha Vahokoski
- European Molecular Biology Laboratory, Hamburg Unit, Notkestrasse 85, 22607 Hamburg, Germany
| | - Haydyn D T Mertens
- European Molecular Biology Laboratory, Hamburg Unit, Notkestrasse 85, 22607 Hamburg, Germany
| | - Dana Komadina
- European Molecular Biology Laboratory, Hamburg Unit, Notkestrasse 85, 22607 Hamburg, Germany
| | - Jan-Erik Hoffmann
- European Molecular Biology Laboratory, Cell Biology and Biophysics Unit, Meyerhofstrasse 1, 69117 Heidelberg, Germany
| | - Hayretin Yumerefendi
- European Molecular Biology Laboratory, Grenoble Outstation, 71 Avenue des Martyrs, CS 90181, 38042 Grenoble Cedex 9, France
| | - Dmitri I Svergun
- European Molecular Biology Laboratory, Hamburg Unit, Notkestrasse 85, 22607 Hamburg, Germany
| | - Petri Kursula
- European Molecular Biology Laboratory, Hamburg Unit, Notkestrasse 85, 22607 Hamburg, Germany; Department of Biomedicine, University of Bergen, Jonas Lies vei 91, 5020 Bergen, Norway
| | - Carsten Schultz
- European Molecular Biology Laboratory, Cell Biology and Biophysics Unit, Meyerhofstrasse 1, 69117 Heidelberg, Germany
| | - Andrew A McCarthy
- European Molecular Biology Laboratory, Grenoble Outstation, 71 Avenue des Martyrs, CS 90181, 38042 Grenoble Cedex 9, France; University Grenoble Alpes, Centre National de la Recherche Scientifique-EMBL, Unit of Virus Host-Cell Interactions, 71 Avenue des Martyrs, CS 90181, 38042 Grenoble Cedex 9, France
| | - Darren J Hart
- European Molecular Biology Laboratory, Grenoble Outstation, 71 Avenue des Martyrs, CS 90181, 38042 Grenoble Cedex 9, France; University Grenoble Alpes, Centre National de la Recherche Scientifique-EMBL, Unit of Virus Host-Cell Interactions, 71 Avenue des Martyrs, CS 90181, 38042 Grenoble Cedex 9, France
| | - Matthias Wilmanns
- European Molecular Biology Laboratory, Hamburg Unit, Notkestrasse 85, 22607 Hamburg, Germany; University of Hamburg Clinical Center Hamburg-Eppendorf, Martinistrasse 52, 20246 Hamburg, Germany.
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12
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Isshiki K, Hirase T, Matsuda S, Miyamoto K, Tsuji A, Yuasa K. Death-associated protein kinase 2 mediates nocodazole-induced apoptosis through interaction with tubulin. Biochem Biophys Res Commun 2015; 468:113-8. [PMID: 26529546 DOI: 10.1016/j.bbrc.2015.10.151] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2015] [Accepted: 10/28/2015] [Indexed: 11/29/2022]
Abstract
Death-associated protein kinase 2 (DAPK2) is a positive regulator of apoptosis. Although we recently reported that 14-3-3 proteins inhibit DAPK2 activity and its subsequent apoptotic effects via binding to DAPK2, the molecular mechanisms underlying the DAPK2-mediated apoptotic pathway remain unclear. Therefore, we attempted to further identify DAPK2-interacting proteins using pull-down assays and mass spectrometry. The microtubule β-tubulin was identified as a novel DAPK2-binding protein in HeLa cells. Pull-down assays revealed that DAPK2 interacted with the α/β-tubulin heterodimer, and that the C-terminal region of DAPK2, which differs from that of other DAPK family members, was sufficient for the association with β-tubulin. Although the microtubule-depolymerizing agent nocodazole induced apoptosis in HeLa cells, the level of apoptosis was significantly decreased in the DAPK2 knockdown cells. Furthermore, we found that treatment with nocodazole resulted in an increased binding of DAPK2 to β-tubulin. These findings indicate that DAPK2 mediates nocodazole-induced apoptosis via binding to tubulin.
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Affiliation(s)
- Kinuka Isshiki
- Department of Biological Science and Technology, Tokushima University Graduate School, 2-1 Minamijosanjima, Tokushima 770-8506, Japan
| | - Taishi Hirase
- Department of Biological Science and Technology, Tokushima University Graduate School, 2-1 Minamijosanjima, Tokushima 770-8506, Japan
| | - Shinya Matsuda
- Department of Biological Science and Technology, Tokushima University Graduate School, 2-1 Minamijosanjima, Tokushima 770-8506, Japan
| | - Kenji Miyamoto
- Department of Biological Science and Technology, Tokushima University Graduate School, 2-1 Minamijosanjima, Tokushima 770-8506, Japan
| | - Akihiko Tsuji
- Department of Biological Science and Technology, Tokushima University Graduate School, 2-1 Minamijosanjima, Tokushima 770-8506, Japan
| | - Keizo Yuasa
- Department of Biological Science and Technology, Tokushima University Graduate School, 2-1 Minamijosanjima, Tokushima 770-8506, Japan.
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Identification of Novel Death-Associated Protein Kinase 2 Interaction Partners by Proteomic Screening Coupled with Bimolecular Fluorescence Complementation. Mol Cell Biol 2015; 36:132-43. [PMID: 26483415 DOI: 10.1128/mcb.00515-15] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Accepted: 10/08/2015] [Indexed: 11/20/2022] Open
Abstract
Death-associated protein kinase 2 (DAPK2) is a Ca(2+)/calmodulin-dependent Ser/Thr kinase that possesses tumor-suppressive functions and regulates programmed cell death, autophagy, oxidative stress, hematopoiesis, and motility. As only few binding partners of DAPK2 have been determined, the molecular mechanisms governing these biological functions are largely unknown. We report the identification of 180 potential DAPK2 interaction partners by affinity purification-coupled mass spectrometry, 12 of which are known DAPK binding proteins. A small subset of established and potential binding proteins detected in this screen was further investigated by bimolecular fluorescence complementation (BiFC) assays, a method to visualize protein interactions in living cells. These experiments revealed that α-actinin-1 and 14-3-3-β are novel DAPK2 binding partners. The interaction of DAPK2 with α-actinin-1 was localized at the plasma membrane, resulting in massive membrane blebbing and reduced cellular motility, whereas the interaction of DAPK2 with 14-3-3-β was localized to the cytoplasm, with no impact on blebbing, motility, or viability. Our results therefore suggest that DAPK2 effector functions are influenced by the protein's subcellular localization and highlight the utility of combining mass spectrometry screening with bimolecular fluorescence complementation to identify and characterize novel protein-protein interactions.
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14
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Nodes-and-connections RNAi knockdown screening: identification of a signaling molecule network involved in fulvestrant action and breast cancer prognosis. Oncogenesis 2015; 4:e172. [PMID: 26479444 PMCID: PMC4632093 DOI: 10.1038/oncsis.2015.32] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2015] [Accepted: 09/11/2015] [Indexed: 11/08/2022] Open
Abstract
Although RNA interference (RNAi) knockdown screening of cancer cell cultures is an effective approach to predict drug targets or therapeutic/prognostic biomarkers, interactions among identified targets often remain obscure. Here, we introduce the nodes-and-connections RNAi knockdown screening that generates a map of target interactions through systematic iterations of in silico prediction of targets and their experimental validation. An initial RNAi knockdown screening of MCF-7 human breast cancer cells targeting 6560 proteins identified four signaling molecules required for their fulvestrant-induced apoptosis. Signaling molecules physically or functionally interacting with these four primary node targets were computationally predicted and experimentally validated, resulting in identification of four second-generation nodes. Three rounds of further iterations of the prediction–validation cycle generated third, fourth and fifth generation of nodes, completing a 19-node interaction map that contained three predicted nodes but without experimental validation because of technical limitations. The interaction map involved all three members of the death-associated protein kinases (DAPKs) as well as their upstream and downstream signaling molecules (calmodulins and myosin light chain kinases), suggesting that DAPKs play critical roles in the cytocidal action of fulvestrant. The in silico Kaplan–Meier analysis of previously reported human breast cancer cohorts demonstrated significant prognostic predictive power for five of the experimentally validated nodes and for three of the prediction-only nodes. Immunohistochemical studies on the expression of 10 nodal proteins in human breast cancer tissues not only supported their prognostic prediction power but also provided statistically significant evidence of their synchronized expression, implying functional interactions among these nodal proteins. Thus, the Nodes-and-Connections approach to RNAi knockdown screening yields biologically meaningful outcomes by taking advantage of the existing knowledge of the physical and functional interactions between the predicted target genes. The resulting interaction maps provide useful information on signaling pathways cooperatively involved in clinically important features of the malignant cells, such as drug resistance.
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Yuasa K, Ota R, Matsuda S, Isshiki K, Inoue M, Tsuji A. Suppression of death-associated protein kinase 2 by interaction with 14-3-3 proteins. Biochem Biophys Res Commun 2015; 464:70-5. [DOI: 10.1016/j.bbrc.2015.05.105] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2015] [Accepted: 05/29/2015] [Indexed: 12/23/2022]
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Death-associated protein kinase 2: Regulator of apoptosis, autophagy and inflammation. Int J Biochem Cell Biol 2015; 65:151-4. [PMID: 26055515 DOI: 10.1016/j.biocel.2015.06.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2015] [Revised: 06/02/2015] [Accepted: 06/03/2015] [Indexed: 01/05/2023]
Abstract
Death-associated protein kinase 2 (DAPK2/DRP-1) belongs to a family of five related serine/threonine kinases that mediate a range of cellular processes, including membrane blebbing, apoptosis, and autophagy, and possess tumour suppressive functions. The three most conserved family members DAPK1/DAPK, DAPK2 and DAPK3/ZIPK share a high degree of homology in their catalytic domain, but differ significantly in their extra-catalytic structures and tissue-expression profiles. Hence, each orthologue binds to various unique interaction partners, localizes to different subcellular regions and controls some dissimilar cellular functions. In recent years, mechanistic studies have broadened our knowledge of the molecular mechanisms that activate DAPK2 and that execute DAPK2-mediated apoptosis, autophagy and inflammation. In this "molecules in focus" review on DAPK2, the structure, modes of regulation and various cellular functions of DAPK2 will be summarized and discussed.
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Simon B, Huart AS, Wilmanns M. Molecular mechanisms of protein kinase regulation by calcium/calmodulin. Bioorg Med Chem 2015; 23:2749-60. [PMID: 25963826 DOI: 10.1016/j.bmc.2015.04.051] [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: 02/10/2015] [Revised: 04/13/2015] [Accepted: 04/15/2015] [Indexed: 01/02/2023]
Abstract
Many human protein kinases are regulated by the calcium-sensor protein calmodulin, which binds to a short flexible segment C-terminal to the enzyme's catalytic kinase domain. Our understanding of the molecular mechanism of kinase activity regulation by calcium/calmodulin has been advanced by the structures of two protein kinases-calmodulin kinase II and death-associated protein kinase 1-bound to calcium/calmodulin. Comparison of these two structures reveals a surprising level of diversity in the overall kinase-calcium/calmodulin arrangement and functional readout of activity, as well as complementary mechanisms of kinase regulation such as phosphorylation.
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Affiliation(s)
- Bertrand Simon
- EMBL Hamburg, c/o DESY, Building 25A, Notkestraße 85, 22603 Hamburg, Germany
| | - Anne-Sophie Huart
- EMBL Hamburg, c/o DESY, Building 25A, Notkestraße 85, 22603 Hamburg, Germany
| | - Matthias Wilmanns
- EMBL Hamburg, c/o DESY, Building 25A, Notkestraße 85, 22603 Hamburg, Germany.
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Windham PF, Tinsley HN. cGMP signaling as a target for the prevention and treatment of breast cancer. Semin Cancer Biol 2014; 31:106-10. [PMID: 24972142 DOI: 10.1016/j.semcancer.2014.06.006] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Revised: 06/10/2014] [Accepted: 06/13/2014] [Indexed: 12/19/2022]
Abstract
One in eight women in the United States will be diagnosed with invasive breast cancer in her lifetime. Advances in therapeutic strategies, diagnosis, and improved awareness have resulted in a significant reduction in breast cancer related mortality. However, there is a continued need for more effective and less toxic drugs for both the prevention and the treatment of breast cancer in order to see a continued decline in the morbidity and mortality associated with this disease. Recent studies suggest that the cGMP signaling pathway may be aberrantly regulated in breast cancer. As such, this pathway may serve as a source of novel targets for future breast cancer drug discovery efforts. This review provides an overview of cGMP signaling in normal physiology and in breast cancer as well as current strategies being investigated for targeting this pathway in breast cancer.
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Affiliation(s)
- Perrin F Windham
- University of Montevallo, Department of Biology, Chemistry and Mathematics, Station 6480, Montevallo, AL 35115, USA
| | - Heather N Tinsley
- University of Montevallo, Department of Biology, Chemistry and Mathematics, Station 6480, Montevallo, AL 35115, USA.
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Maimaitiyiming H, Li Y, Cui W, Tong X, Norman H, Qi X, Wang S. Increasing cGMP-dependent protein kinase I activity attenuates cisplatin-induced kidney injury through protection of mitochondria function. Am J Physiol Renal Physiol 2013; 305:F881-90. [PMID: 23825069 DOI: 10.1152/ajprenal.00192.2013] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Cisplatin is widely used to treat malignancies. However, its major limitation is the development of dose-dependent nephrotoxicity. The precise mechanisms of cisplatin-induced kidney damage remain unclear, and the renoprotective agents during cisplatin treatment are still lacking. Here, we demonstrated that the expression and activity of cGMP-dependent protein kinase-I (PKG-I) were reduced in cisplatin-treated renal tubular cells in vitro as well as in the kidney tissues from cisplatin-treated mice in vivo. Increasing PKG activity by both pharmacological and genetic approaches attenuated cisplatin-induced kidney cell apoptosis in vitro. This was accompanied by decreased Bax/Bcl2 ratio, caspase 3 activity, and cytochrome c release. Cisplatin-induced mitochondria membrane potential loss in the tubular cells was also prevented by increased PKG activity. All of these data suggest a protective effect of PKG on mitochondria function in renal tubular cells. Importantly, increasing PKG activity pharmacologically or genetically diminished cisplatin-induced tubular damage and preserved renal function during cisplatin treatment in vivo. Mitochondria structural and functional damage in the kidney from cisplatin-treated mice was inhibited by increased PKG activity. In addition, increasing PKG activity enhanced ciaplatin-induced cell death in several cancer cell lines. Taken together, these results suggest that increasing PKG activity may be a novel option for renoprotection during cisplatin-based chemotherapy.
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Affiliation(s)
- Hasiyeti Maimaitiyiming
- Graduate Center for Nutritional Sciences, Univ. of Kentucky, Wethington Bldg. Rm. 583, 900 S. Limestone St., Lexington, KY 40536.
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