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Kaneshige R, Ohtsuka S, Harada Y, Kawamata I, Magari M, Kanayama N, Hatano N, Sakagami H, Tokumitsu H. Substrate recognition by Arg/Pro-rich insert domain in calcium/calmodulin-dependent protein kinase kinase for target protein kinases. FEBS J 2022; 289:5971-5984. [PMID: 35490408 DOI: 10.1111/febs.16467] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 03/14/2022] [Accepted: 04/28/2022] [Indexed: 02/01/2023]
Abstract
Calcium/calmodulin-dependent protein kinase kinases (CaMKKs) activate CaMKI, CaMKIV, protein kinase B/Akt, and AMP-activated protein kinase (AMPK) by phosphorylating Thr residues in activation loops to mediate various Ca2+ -signaling pathways. Mammalian cells expressing CaMKKα and CaMKKβ lacking Arg/Pro-rich insert domain (RP-domain) sequences showed impaired phosphorylation of AMPKα, CaMKIα, and CaMKIV, whereas the autophosphorylation activities of CaMKK mutants remained intact and were similar to those of wild-type CaMKKs. Liver kinase B1 (LKB1, an AMPK kinase) complexed with STRAD and MO25 and was unable to phosphorylate CaMKIα and CaMKIV; however, mutant LKB1 with the RP-domain sequences of CaMKKα and CaMKKβ inserted between kinase subdomains II and III acquired CaMKIα and CaMKIV phosphorylating activity in vitro and in transfected cultured cells. Furthermore, ionomycin-induced phosphorylation of hemagglutinin (HA)-CaMKIα at Thr177, HA-CaMKIV at Thr196, and HA-AMPKα at Thr172 in transfected cells was significantly suppressed by cotransfection of kinase-dead mutants of CaMKK isoforms, but these dominant-negative effects were abrogated with RP-deletion mutants, suggesting that sequestration of substrate kinases by loss-of-function CaMKK mutants requires the RP-domain. This was confirmed by pulldown experiments that showed that dominant-negative mutants of CaMKKα and CaMKKβ interact with target kinases but not RP-deletion mutants. Taken together, these results clearly indicate that both CaMKK isoforms require the RP-domain to recognize downstream kinases to interact with and phosphorylate Thr residues in their activation loops. Thus, the RP-domain may be a promising target for specific CaMKK inhibitors.
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Affiliation(s)
- Riku Kaneshige
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Japan
| | - Satomi Ohtsuka
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Japan
| | - Yuhei Harada
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Japan
| | - Issei Kawamata
- Department of Applied Chemistry and Biotechnology, Faculty of Engineering, Okayama University, Japan
| | - Masaki Magari
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Japan
| | - Naoki Kanayama
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Japan
| | - Naoya Hatano
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Japan
| | - Hiroyuki Sakagami
- Department of Anatomy, Kitasato University School of Medicine, Sagamihara, Japan
| | - Hiroshi Tokumitsu
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Japan
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Magari M, Nishioka M, Hari T, Ogawa S, Takahashi K, Hatano N, Kanayama N, Futami J, Tokumitsu H. The immunoreceptor SLAMF8 promotes the differentiation of follicular dendritic cell-dependent monocytic cells with B cell-activating ability. FEBS Lett 2022; 596:2659-2667. [PMID: 35953458 DOI: 10.1002/1873-3468.14468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 06/22/2022] [Accepted: 07/30/2022] [Indexed: 11/06/2022]
Abstract
Follicular dendritic cells (FDCs) play a crucial role in generating high-affinity antibody-producing B cells during the germinal center (GC) reaction. Herein, we analyzed the altered gene expression profile of a mouse FDC line, FL-Y, following lymphotoxin β receptor stimulation, and observed increased Slam-family member 8 (Slamf8) mRNA expression. Forced Slamf8 expression and SLAMF8-Fc addition enhanced the ability of FL-Y cells to induce FDC-induced monocytic cell (FDMC) differentiation. FDMCs accelerated GC-phenotype proliferation in cultured B cells, suggesting that they are capable of promoting GC responses. Furthermore, a pulldown assay showed that SLAMF8-Fc could bind to SLAMF8-His. Overall, the homophilic interaction of SLAMF8 promotes FDMC differentiation and SLAMF8 might act as a novel regulator of GC responses by regulating FDMC differentiation.
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Affiliation(s)
- Masaki Magari
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama, 700-8530, Japan.,Division of Medical Bioengineering, Graduate School of Natural Science and Technology, Okayama University, Okayama, 700-8530, Japan
| | - Miku Nishioka
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama, 700-8530, Japan
| | - Tomomi Hari
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama, 700-8530, Japan
| | - Sayaka Ogawa
- Division of Medical Bioengineering, Graduate School of Natural Science and Technology, Okayama University, Okayama, 700-8530, Japan
| | - Kaho Takahashi
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama, 700-8530, Japan
| | - Naoya Hatano
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama, 700-8530, Japan
| | - Naoki Kanayama
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama, 700-8530, Japan.,Division of Medical Bioengineering, Graduate School of Natural Science and Technology, Okayama University, Okayama, 700-8530, Japan
| | - Junichiro Futami
- Medical Protein Engineering, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama, 700-8530, Japan
| | - Hiroshi Tokumitsu
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama, 700-8530, Japan.,Division of Medical Bioengineering, Graduate School of Natural Science and Technology, Okayama University, Okayama, 700-8530, Japan
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Ohtsuka S, Okumura T, Τabuchi Y, Miyagawa T, Kanayama N, Magari M, Hatano N, Sakagami H, Suizu F, Ishikawa T, Tokumitsu H. Conformation-Dependent Reversible Interaction of Ca 2+/Calmodulin-Dependent Protein Kinase Kinase with an Inhibitor, TIM-063. Biochemistry 2022; 61:545-553. [PMID: 35274528 DOI: 10.1021/acs.biochem.1c00796] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Ca2+/calmodulin-dependent protein kinase kinase (CaMKK), a Ca2+/CaM-dependent enzyme that phosphorylates and activates multifunctional kinases, including CaMKI, CaMKIV, protein kinase B/Akt, and 5'AMP-activated protein kinase, is involved in various Ca2+-signaling pathways in cells. Recently, we developed an ATP-competitive CaMKK inhibitor, TIM-063 (2-hydroxy-3-nitro-7H-benzo[de]benzo[4,5]imidazo[2,1-a]isoquinolin-7-one, Ohtsuka et al. Biochemistry 2020, 59, 1701-1710). To gain mechanistic insights into the interaction of CaMKK with TIM-063, we prepared TIM-063-coupled sepharose (TIM-127-sepharose) for association/dissociation analysis of the enzyme/inhibitor complex. CaMKKα/β in transfected COS-7 cells and in mouse brain extracts specifically bound to TIM-127-sepharose and dissociated following the addition of TIM-063 in a manner similar to that of recombinant GST-CaMKKα/β, which could bind to TIM-127-sepharose in a Ca2+/CaM-dependent fashion and dissociate from the sepharose following the addition of TIM-063 in a dose-dependent manner. In contrast to GST-CaMKKα, GST-CaMKKβ was able to weakly bind to TIM-127-sepharose in the presence of EGTA, probably due to the partially active conformation of recombinant GST-CaMKKβ without Ca2+/CaM-binding. These results suggested that the regulatory domain of CaMKKα prevented the inhibitor from interacting with the catalytic domain as the GST-CaMKKα mutant (residues 126-434) lacking the regulatory domain (residues 438-463) interacted with TIM-127-sepharose regardless of the presence or absence of Ca2+/CaM. Furthermore, CaMKKα bound to TIM-127-sepharose in the presence of Ca2+/CaM completely dissociated from TIM-127-sepharose following the addition of excess EGTA. These results indicated that TIM-063 interacted with and inhibited CaMKK in its active state but not in its autoinhibited state and that this interaction is likely reversible, depending on the concentration of intracellular Ca2+.
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Affiliation(s)
- Satomi Ohtsuka
- Applied Cell Biology, Graduate School of Interdisciplinary Science & Engineering in Health Systems, Okayama University, Okayama 700-8530, Japan
| | - Taisei Okumura
- Department of Science Education, Graduate School of Education, Okayama University, Okayama 700-8530, Japan
| | - Yuna Τabuchi
- Department of Science Education, Graduate School of Education, Okayama University, Okayama 700-8530, Japan
| | - Tomoyuki Miyagawa
- Department of Science Education, Graduate School of Education, Okayama University, Okayama 700-8530, Japan
| | - Naoki Kanayama
- Applied Cell Biology, Graduate School of Interdisciplinary Science & Engineering in Health Systems, Okayama University, Okayama 700-8530, Japan
| | - Masaki Magari
- Applied Cell Biology, Graduate School of Interdisciplinary Science & Engineering in Health Systems, Okayama University, Okayama 700-8530, Japan
| | - Naoya Hatano
- Applied Cell Biology, Graduate School of Interdisciplinary Science & Engineering in Health Systems, Okayama University, Okayama 700-8530, Japan
| | - Hiroyuki Sakagami
- Department of Anatomy, Kitasato University School of Medicine, Sagamihara, Kanagawa 252-0374, Japan
| | - Futoshi Suizu
- Division of Cancer Biology, Institute for Genetic Medicine, Hokkaido University, Sapporo 060-0815, Japan
| | - Teruhiko Ishikawa
- Department of Science Education, Graduate School of Education, Okayama University, Okayama 700-8530, Japan
| | - Hiroshi Tokumitsu
- Applied Cell Biology, Graduate School of Interdisciplinary Science & Engineering in Health Systems, Okayama University, Okayama 700-8530, Japan
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Fukumoto Y, Harada Y, Ohtsuka S, Kanayama N, Magari M, Hatano N, Sakagami H, Tokumitsu H. Oligomerization of Ca 2+/calmodulin-dependent protein kinase kinase. Biochem Biophys Res Commun 2022; 587:160-165. [PMID: 34875535 DOI: 10.1016/j.bbrc.2021.11.105] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 11/30/2021] [Indexed: 11/28/2022]
Abstract
Ca2+/calmodulin-dependent protein kinase kinases (CaMKKα and β) are regulatory kinases for multiple downstream kinases, including CaMKI, CaMKIV, PKB/Akt, and AMP-activated protein kinase (AMPK) through phosphorylation of each activation-loop Thr residue. In this report, we biochemically characterize the oligomeric structure of CaMKK isoforms through a heterologous expression system using COS-7 cells. Oligomerization of CaMKK isoforms was readily observed by treating CaMKK transfected cells with cell membrane permeable crosslinkers. In addition, His-tagged CaMKKα (His-CaMKKα) pulled down with FLAG-tagged CaMKKα (FLAG-CaMKKα) in transfected cells. The oligomerization of CaMKKα was confirmed by the fact that GST-CaMKKα/His-CaMKKα complex from transiently expressed COS-7 cells extracts was purified to near homogeneity by the sequential chromatography using glutathione-sepharose/Ni-sepharose and was observed in a Ca2+/CaM-independent manner by reciprocal pulldown assay, suggesting the direct interaction between monomeric CaMKKα. Furthermore, the His-CaMKKα kinase-dead mutant (D293A) complexed with FLAG-CaMKKα exhibited significant CaMKK activity, indicating the active CaMKKα multimeric complex. Collectively, these results suggest that CaMKKα can self-associate in the cells, constituting a catalytically active oligomer that might be important for the efficient activation of CaMKK-mediated intracellular signaling.
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Affiliation(s)
- Yusei Fukumoto
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama, 700-8530, Japan
| | - Yuhei Harada
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama, 700-8530, Japan
| | - Satomi Ohtsuka
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama, 700-8530, Japan
| | - Naoki Kanayama
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama, 700-8530, Japan
| | - Masaki Magari
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama, 700-8530, Japan
| | - Naoya Hatano
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama, 700-8530, Japan
| | - Hiroyuki Sakagami
- Department of Anatomy, Kitasato University School of Medicine, Kanagawa, 252-0374, Japan
| | - Hiroshi Tokumitsu
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama, 700-8530, Japan.
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Nakauchi H, Maeda M, Kanayama N. Terminal Sequence-Specific Interparticle Attraction between DNA Duplex-Carrying Polystyrene Microparticles in Aqueous Salt Solution Assessed by Optical Tweezers. Langmuir 2021; 37:5573-5581. [PMID: 33871256 DOI: 10.1021/acs.langmuir.1c00349] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The dispersion behavior of DNA duplex-carrying colloidal particles in aqueous high-salt solutions shows extraordinary selectivity against the duplex terminal sequence. We investigated the interparticle force between DNA duplex-carrying polystyrene (dsDNA-PS) microparticles in aqueous salt solutions and examined their behavior in relation to the duplex terminal sequences. Force-distance (F-D) curves for a pair of dsDNA-PS particles were recorded with a dual-beam optical tweezers system with the two optically trapped particles closely approaching each other. Interestingly, only 3-5% of the oligo-DNA strands on the dsDNA-PS particles formed a duplex with complementary DNAs, and the F-D curves showed a distinct specificity to the duplex terminal sequences in the interparticle force at a high-NaCl concentration; a clear attraction peak was observed in F-D curves only when the duplex terminal was a complementary base pair. The attractive strength reached 2.6 ± 0.5 pN at 500 mM NaCl and 4.3 ± 1.0 pN at 750 mM NaCl. By sharp contrast, no significant attraction occurred for the particles with mismatched duplex terminals even at 750 mM NaCl. Similar duplex terminal-specificity in the interparticle force was also confirmed for dsDNA-PS particles in divalent MgCl2 solutions. Considering that the duplex terminal sequences on the dsDNA-PS particles showed only a negligible difference in their surface charges under identical salt conditions, we concluded that the interparticle attraction observed only for the dsDNA-PS particles with complementary duplex terminals is attributable to the salt-facilitated stacking interaction between the paired terminal nucleobases (i.e., blunt-end stacking) on the dsDNA-PS surfaces. Our results thus demonstrate the occurrence of a duplex terminal-specific interparticle force between dsDNA-PS particles under high-salt conditions.
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Affiliation(s)
- Hiroya Nakauchi
- Department of Biomedical Engineering, Graduate School of Medicine, Science and Technology, Shinshu University, 4-17-1 Wakasato, Nagano-shi, Nagano 380-8553, Japan
| | - Mizuo Maeda
- Department of Biomedical Engineering, Graduate School of Medicine, Science and Technology, Shinshu University, 4-17-1 Wakasato, Nagano-shi, Nagano 380-8553, Japan
- Bioengineering Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Naoki Kanayama
- Department of Biomedical Engineering, Graduate School of Medicine, Science and Technology, Shinshu University, 4-17-1 Wakasato, Nagano-shi, Nagano 380-8553, Japan
- Bioengineering Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Institute of Biomedical Science, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, 3-1-1 Asahi, Matsumoto, Nagano 390-8621, Japan
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Yamamoto M, Kondo R, Hozumi H, Doi S, Denda M, Magari M, Kanayama N, Hatano N, Morishita R, Tokumitsu H. Identification and Biochemical Characterization of High Mobility Group Protein 20A as a Novel Ca 2+/S100A6 Target. Biomolecules 2021; 11:biom11040510. [PMID: 33808200 PMCID: PMC8103281 DOI: 10.3390/biom11040510] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 03/17/2021] [Accepted: 03/23/2021] [Indexed: 12/30/2022] Open
Abstract
During screening of protein-protein interactions, using human protein arrays carrying 19,676 recombinant glutathione s-transferase (GST)-fused human proteins, we identified the high-mobility protein group 20A (HMG20A) as a novel S100A6 binding partner. We confirmed the Ca2+-dependent interaction of HMG20A with S100A6 by the protein array method, biotinylated S100A6 overlay, and GST-pulldown assay in vitro and in transfected COS-7 cells. Co-immunoprecipitation of S100A6 with HMG20A from HeLa cells in a Ca2+-dependent manner revealed the physiological relevance of the S100A6/HMG20A interaction. In addition, HMG20A has the ability to interact with S100A1, S100A2, and S100B in a Ca2+-dependent manner, but not with S100A4, A11, A12, and calmodulin. S100A6 binding experiments using various HMG20A mutants revealed that Ca2+/S100A6 interacts with the C-terminal region (residues 311–342) of HMG20A with stoichiometric binding (HMG20A:S100A6 dimer = 1:1). This was confirmed by the fact that a GST-HMG20A mutant lacking the S100A6 binding region (residues 311–347, HMG20A-ΔC) failed to interact with endogenous S100A6 in transfected COS-7 cells, unlike wild-type HMG20A. Taken together, these results identify, for the first time, HMG20A as a target of Ca2+/S100 proteins, and may suggest a novel linkage between Ca2+/S100 protein signaling and HMG20A function, including in the regulation of neural differentiation.
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Affiliation(s)
- Maho Yamamoto
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama 700-8530, Japan; (M.Y.); (R.K.); (S.D.); (M.M.); (N.K.); (N.H.)
| | - Rina Kondo
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama 700-8530, Japan; (M.Y.); (R.K.); (S.D.); (M.M.); (N.K.); (N.H.)
| | - Haruka Hozumi
- Department of Applied Chemistry and Biotechnology, Faculty of Engineering, Okayama University, Okayama 700-8530, Japan;
| | - Seita Doi
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama 700-8530, Japan; (M.Y.); (R.K.); (S.D.); (M.M.); (N.K.); (N.H.)
| | - Miwako Denda
- Cell Free Sciences Co., Ltd., Matsuyama 790-8577, Japan; (M.D.); (R.M.)
| | - Masaki Magari
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama 700-8530, Japan; (M.Y.); (R.K.); (S.D.); (M.M.); (N.K.); (N.H.)
| | - Naoki Kanayama
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama 700-8530, Japan; (M.Y.); (R.K.); (S.D.); (M.M.); (N.K.); (N.H.)
| | - Naoya Hatano
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama 700-8530, Japan; (M.Y.); (R.K.); (S.D.); (M.M.); (N.K.); (N.H.)
| | - Ryo Morishita
- Cell Free Sciences Co., Ltd., Matsuyama 790-8577, Japan; (M.D.); (R.M.)
| | - Hiroshi Tokumitsu
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama 700-8530, Japan; (M.Y.); (R.K.); (S.D.); (M.M.); (N.K.); (N.H.)
- Correspondence: ; Tel.: +81-86-251-8197
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Doi S, Fujioka N, Ohtsuka S, Kondo R, Yamamoto M, Denda M, Magari M, Kanayama N, Hatano N, Morishita R, Hasegawa T, Tokumitsu H. Regulation of the tubulin polymerization-promoting protein by Ca 2+/S100 proteins. Cell Calcium 2021; 96:102404. [PMID: 33831707 DOI: 10.1016/j.ceca.2021.102404] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 03/19/2021] [Accepted: 03/22/2021] [Indexed: 10/21/2022]
Abstract
To elucidate S100 protein-mediated signaling pathways, we attempted to identify novel binding partners for S100A2 by screening protein arrays carrying 19,676 recombinant glutathione S-transferase (GST)-fused human proteins with biotinylated S100A2. Among newly discovered putative S100A2 interactants, including TMLHE, TRH, RPL36, MRPS34, CDR2L, OIP5, and MED29, we identified and characterized the tubulin polymerization-promoting protein (TPPP) as a novel S100A2-binding protein. We confirmed the interaction of TPPP with Ca2+/S100A2 by multiple independent methods, including the protein array method, S100A2 overlay, and pulldown assay in vitro and in transfected COS-7 cells. Based on the results from the S100A2 overlay assay using various GST-TPPP mutants, the S100A2-binding region was identified in the C-terminal (residues 111-160) of the central core domain of a monomeric form of TPPP that is involved in TPPP dimerization. Chemical cross-linking experiments indicated that S100A2 suppresses dimer formation of His-tagged TPPP in a dose-dependent and a Ca2+-dependent manner. In addition to S100A2, TPPP dimerization is disrupted by other multiple S100 proteins, including S100A6 and S100B, in a Ca2+-dependent manner but not by S100A4. This is consistent with the fact that S100A6 and S100B, but not S100A4, are capable of interacting with GST-TPPP in the presence of Ca2+. Considering these results together, TPPP was identified as a novel target for S100A2, and it is a potential binding target for other multiple S100 proteins, including S100A6 and S100B. Direct binding of the S100 proteins with TPPP may cause disassembly of TPPP dimer formation in response to the increasing concentration of intracellular Ca2+, thus resulting in the regulation of the physiological function of TPPP, such as microtubule organization.
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Affiliation(s)
- Seita Doi
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama 700-8530, Japan
| | - Naoki Fujioka
- Department of Applied Chemistry and Biotechnology, Faculty of Engineering, Okayama University, Okayama 700-8530, Japan
| | - Satomi Ohtsuka
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama 700-8530, Japan
| | - Rina Kondo
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama 700-8530, Japan
| | - Maho Yamamoto
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama 700-8530, Japan
| | - Miwako Denda
- CellFree Sciences Co., Ltd., Matsuyama, 790-8577, Japan
| | - Masaki Magari
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama 700-8530, Japan
| | - Naoki Kanayama
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama 700-8530, Japan
| | - Naoya Hatano
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama 700-8530, Japan
| | - Ryo Morishita
- CellFree Sciences Co., Ltd., Matsuyama, 790-8577, Japan
| | - Takafumi Hasegawa
- Division of Neurology, Department of Neuroscience and Sensory Organs, Tohoku University Graduate School of Medicine, Sendai, 980-8574, Japan
| | - Hiroshi Tokumitsu
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama 700-8530, Japan.
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Nakauchi H, Maeda M, Kanayama N. DNA Terminal-Specific Dispersion Behavior of Polystyrene Latex Microparticles Densely Covered with Oligo-DNA Strands Under High-Salt Conditions. ANAL SCI 2021; 37:461-468. [PMID: 33281138 DOI: 10.2116/analsci.20scp04] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
We prepared microspheres densely covered with oligo-DNA strands by immobilizing amino-terminated oligo-DNA strands on the surface of carboxylate polystyrene latex (PS) particles via the amide bond formation. The obtained microspheres (ssDNA-PS) stably dispersed in neutral pH buffer containing high concentrations of NaCl. For the ssDNA-PS ≥1 μm diameter, only 3 - 5% of surface-immobilized oligo-DNA could form a duplex with the complementary strands. Nevertheless, the resulting ssDNA-PS showed a distinct duplex terminal dependency in their dispersion behavior under neutral pH and high NaCl conditions; the microspheres with fully-matched duplexes on the surface spontaneously aggregated in a non-crosslinking manner. By contrast, the microspheres with terminal-mismatched duplexes remained dispersed under the identical conditions. These results suggest that the micrometer-scale particles covered with oligo-DNA strands also have high susceptibility to a duplex terminal sequence in their dispersion property, similar to previously reported DNA-functionalized nanoparticles. This property could potentially be used in various applications including analytical purposes.
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Affiliation(s)
- Hiroya Nakauchi
- Department of Biomedical Engineering, Graduate School of Medicine, Science and Technology, Shinshu University
| | - Mizuo Maeda
- Department of Biomedical Engineering, Graduate School of Medicine, Science and Technology, Shinshu University.,Bioengineering Laboratory, RIKEN Cluster for Pioneering Research
| | - Naoki Kanayama
- Department of Biomedical Engineering, Graduate School of Medicine, Science and Technology, Shinshu University.,Bioengineering Laboratory, RIKEN Cluster for Pioneering Research.,Institute of Biomedical Science, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University
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Wada K, Nakanishi E, Toratani M, Ikawa T, Kanayama N, Morimoto M, Konishi K, Teshima T. PO-1129: Impact of individualized ITV margins for IMRT of cervical cancer on target coverage. Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)01146-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Ohtsuka S, Ozeki Y, Fujiwara M, Miyagawa T, Kanayama N, Magari M, Hatano N, Suizu F, Ishikawa T, Tokumitsu H. Development and Characterization of Novel Molecular Probes for Ca 2+/Calmodulin-Dependent Protein Kinase Kinase, Derived from STO-609. Biochemistry 2020; 59:1701-1710. [PMID: 32298102 DOI: 10.1021/acs.biochem.0c00149] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Ca2+/calmodulin-dependent protein kinase kinase (CaMKK) activates particular multifunctional kinases, including CaMKI, CaMKIV, and 5'AMP-activated protein kinase (AMPK), resulting in the regulation of various Ca2+-dependent cellular processes, including neuronal, metabolic, and pathophysiological pathways. We developed and characterized a novel pan-CaMKK inhibitor, TIM-063 (2-hydroxy-3-nitro-7H-benzo[de]benzo[4,5]imidazo[2,1-a]isoquinolin-7-one) derived from STO-609 (7H-benzimidazo[2,1-a]benz[de]isoquinoline-7-one-3-carboxylic acid), and an inactive analogue (TIM-062) as molecular probes for the analysis of CaMKK-mediated cellular responses. Unlike STO-609, TIM-063 had an inhibitory activity against CaMKK isoforms (CaMKKα and CaMKKβ) with a similar potency (Ki = 0.35 μM for CaMKKα, and Ki = 0.2 μM for CaMKKβ) in vitro. Two TIM-063 analogues lacking a nitro group (TIM-062) or a hydroxy group (TIM-064) completely impaired CaMKK inhibitory activities, indicating that both substituents are necessary for the CaMKK inhibitory activity of TIM-063. Enzymatic analysis revealed that TIM-063 is an ATP-competitive inhibitor that directly targets the catalytic domain of CaMKK, similar to STO-609. TIM-063 suppressed the ionomycin-induced phosphorylation of exogenously expressed CaMKI, CaMKIV, and endogenous AMPKα in HeLa cells with an IC50 of ∼0.3 μM, and it suppressed CaMKK isoform-mediated CaMKIV phosphorylation in transfected COS-7 cells. Thus, TIM-063, but not the inactive analogue (TIM-062), displayed cell permeability and the ability to inhibit CaMKK activity in cells. Taken together, these results indicate that TIM-063 could be a useful tool for the precise analysis of CaMKK-mediated signaling pathways and may be a promising lead compound for the development of therapeutic agents for the treatment of CaMKK-related diseases.
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Affiliation(s)
- Satomi Ohtsuka
- Applied Cell Biology, Graduate School of Interdisciplinary Science & Engineering in Health Systems, Okayama University, Okayama 700-8530, Japan
| | | | | | | | - Naoki Kanayama
- Applied Cell Biology, Graduate School of Interdisciplinary Science & Engineering in Health Systems, Okayama University, Okayama 700-8530, Japan
| | - Masaki Magari
- Applied Cell Biology, Graduate School of Interdisciplinary Science & Engineering in Health Systems, Okayama University, Okayama 700-8530, Japan
| | - Naoya Hatano
- Applied Cell Biology, Graduate School of Interdisciplinary Science & Engineering in Health Systems, Okayama University, Okayama 700-8530, Japan
| | - Futoshi Suizu
- Division of Cancer Biology, Institute for Genetic Medicine, Hokkaido University, Sapporo 060-0815, Japan
| | | | - Hiroshi Tokumitsu
- Applied Cell Biology, Graduate School of Interdisciplinary Science & Engineering in Health Systems, Okayama University, Okayama 700-8530, Japan
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Singh AK, Tamrakar A, Jaiswal A, Kanayama N, Kodgire P. SRSF1-3, a splicing and somatic hypermutation regulator, controls transcription of IgV genes via chromatin regulators SATB2, UBN1 and histone variant H3.3. Mol Immunol 2020; 119:69-82. [DOI: 10.1016/j.molimm.2020.01.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 01/01/2020] [Accepted: 01/11/2020] [Indexed: 12/21/2022]
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12
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Takabatake S, Fukumoto Y, Ohtsuka S, Kanayama N, Magari M, Sakagami H, Hatano N, Tokumitsu H. Phosphorylation and dephosphorylation of Ca 2+/calmodulin-dependent protein kinase kinase β at Thr144 in HeLa cells. Biochem Biophys Res Commun 2020; 525:S0006-291X(20)30324-7. [PMID: 32085894 DOI: 10.1016/j.bbrc.2020.02.056] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Accepted: 02/08/2020] [Indexed: 10/25/2022]
Abstract
Ca2+/calmodulin-dependent protein kinase kinase β (CaMKKβ) acts as a regulatory kinase that phosphorylates and activates multiple downstream kinases including CaMKI, CaMKIV, 5'AMP-activated protein kinase (AMPK) and protein kinase B (PKB), resulting in regulation of wide variety of Ca2+-dependent physiological responses under normal and pathological conditions. CaMKKβ is regulated by Ca2+/calmodulin-binding, autophosphorylation, and transphosphorylation by multiple protein kinases including cAMP-dependent protein kinase (PKA). In this report, we found that phosphorylation of CaMKKβ is dynamically regulated by protein phosphatase/kinase system in HeLa cells. Global phosphoproteomic analysis revealed the constitutive phosphorylation at 8 Ser residues including Ser128, 132, and 136 in the N-terminal regulatory domain of rat CaMKKβ in unstimulated HeLa cells as well as inducible phosphorylation of Thr144 in the cells treated with a phosphatase inhibitor, okadaic acid (OA). Thr144 phosphorylation in CaMKKβ has shown to be rapidly induced by OA treatment in a time- and dose-dependent manner in transfected HeLa cells, indicating that Thr144 in CaMKKβ is maintained unphosphorylated state by protein phosphatase(s). We confirmed that in vitro dephosphorylation of pThr144 in CaMKKβ by protein phosphatase 2A and 1. We also found that the pharmacological inhibition of protein phosphatase(s) significantly induces CaMKKβ-phosphorylating activity (at Thr144) in HeLa cell lysates as well as in intact cells; however, it was unlikely that this activity was catalyzed by previously identified Thr144-kinases, such as AMPK and PKA. Taken together, these results suggest that the phosphorylation and dephosphorylation of Thr144 in CaMKKβ is dynamically regulated by multiple kinases/phosphatases signaling resulting in fine-tuning of the enzymatic property.
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Affiliation(s)
- Shota Takabatake
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama, 700-8530 Japan
| | - Yusei Fukumoto
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama, 700-8530 Japan
| | - Satomi Ohtsuka
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama, 700-8530 Japan
| | - Naoki Kanayama
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama, 700-8530 Japan
| | - Masaki Magari
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama, 700-8530 Japan
| | - Hiroyuki Sakagami
- Department of Anatomy, Kitasato University School of Medicine, Sagamihara, Kanagawa, 252-0374, Japan
| | - Naoya Hatano
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama, 700-8530 Japan
| | - Hiroshi Tokumitsu
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama, 700-8530 Japan.
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Kanayama N, Kishi S, Takarada T, Maeda M. Photo-switching of blunt-end stacking between DNA strands immobilized on gold nanoparticles. Chem Commun (Camb) 2020; 56:14589-14592. [DOI: 10.1039/d0cc05085g] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
End-to-end stacking of DNAs on gold nanoparticles was switched by terminal base pairing/unpairing triggered by the photo-isomerization of an azobenzene moiety nearby the DNA terminal.
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Affiliation(s)
- Naoki Kanayama
- Bioengineering Laboratory
- RIKEN Cluster for Pioneering Research
- Wako
- Japan
- Graduate School of Medicine
| | - Satomi Kishi
- Bioengineering Laboratory
- RIKEN Cluster for Pioneering Research
- Wako
- Japan
| | - Tohru Takarada
- Bioengineering Laboratory
- RIKEN Cluster for Pioneering Research
- Wako
- Japan
| | - Mizuo Maeda
- Bioengineering Laboratory
- RIKEN Cluster for Pioneering Research
- Wako
- Japan
- Graduate School of Medicine
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14
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Ito F, Saigusa M, Kanayama N. Evaporative Crystallization of Dibenzoylmethanato Boron Difluoride Probed by Time-resolved Quartz Crystal Microbalance Responses with Fluorescence Changes. CHEM LETT 2019. [DOI: 10.1246/cl.190501] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Fuyuki Ito
- Department of Chemistry, Institute of Education, Shinshu University, 6-ro Nishinagano, Nagano 380-8544, Japan
- Bioengineering Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Mai Saigusa
- Department of Chemistry, Institute of Education, Shinshu University, 6-ro Nishinagano, Nagano 380-8544, Japan
| | - Naoki Kanayama
- Graduate School of Medicine, Science and Technology, Shinshu University, 4-17-1 Wakasato, Nagano 380-8553, Japan
- Bioengineering Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
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15
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Zhang L, Zhao C, Zhang Y, Wang L, Wang G, Kanayama N, Takarada T, Maeda M, Liang X. Chemically Fueled Plasmon Switching of Gold Nanorods by Single-Base Pairing of Surface-Grafted DNA. Langmuir 2019; 35:11710-11716. [PMID: 31407908 DOI: 10.1021/acs.langmuir.9b01537] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The interactions between metal ions and biomolecules are crucial to various bioprocesses. Development of plasmon switching nanodevices that exploit these molecular interactions is of fundamental and technological interest. Here, we show plasmon switching based on rapid aggregation/dispersion of double-stranded DNA-modified gold nanorods (dsDNA-AuNRs) that exhibit colloidal behaviors depending on pairing/unpairing of the terminal bases. The dsDNA-AuNRs bearing a thymine-thymine (T-T) mismatch at the penultimate position undergo spontaneous non-cross-linking aggregation in the presence of Hg2+ due to T-Hg-T base pairing. Inversely, the subsequent addition of cysteine (Cys) gives rise to the removal of Hg2+ from the T-Hg-T base pair to reproduce the T-T mismatch, resulting in stable dispersion of the dsDNA-AuNRs. The chemical-responsive plasmon switch allows for the rapid and repeatable cycles at room temperature. The validity of the present method is further exemplified by developing another plasmon switch fueled by Ag+ and Cys by installing the Ag+-binding DNA sequence in the dsDNA-AuNR.
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Affiliation(s)
- Lan Zhang
- College of Food Science and Engineering , Ocean University of China , 5 Yushan Road , Qingdao 266003 , China
| | - Chenlin Zhao
- College of Food Science and Engineering , Ocean University of China , 5 Yushan Road , Qingdao 266003 , China
| | - Yao Zhang
- College of Food Science and Engineering , Ocean University of China , 5 Yushan Road , Qingdao 266003 , China
| | - Luyang Wang
- College of Food Science and Engineering , Ocean University of China , 5 Yushan Road , Qingdao 266003 , China
| | - Guoqing Wang
- College of Food Science and Engineering , Ocean University of China , 5 Yushan Road , Qingdao 266003 , China
- Bioengineering Laboratory , RIKEN Cluster for Pioneering Research , 2-1 Hirosawa , Wako , Saitama 351-0198 , Japan
- Laboratory for Marine Drugs and Bioproducts , Pilot National Laboratory for Marine Science and Technology (Qingdao) , Qingdao 266237 , China
| | - Naoki Kanayama
- Bioengineering Laboratory , RIKEN Cluster for Pioneering Research , 2-1 Hirosawa , Wako , Saitama 351-0198 , Japan
- Graduate School of Medicine, Science and Technology , Shinshu University , 4-7-1 Wakasato , Nagano-shi , Nagano 380-8553 , Japan
| | - Tohru Takarada
- Bioengineering Laboratory , RIKEN Cluster for Pioneering Research , 2-1 Hirosawa , Wako , Saitama 351-0198 , Japan
| | - Mizuo Maeda
- Bioengineering Laboratory , RIKEN Cluster for Pioneering Research , 2-1 Hirosawa , Wako , Saitama 351-0198 , Japan
- Graduate School of Medicine, Science and Technology , Shinshu University , 4-7-1 Wakasato , Nagano-shi , Nagano 380-8553 , Japan
| | - Xingguo Liang
- College of Food Science and Engineering , Ocean University of China , 5 Yushan Road , Qingdao 266003 , China
- Laboratory for Marine Drugs and Bioproducts , Pilot National Laboratory for Marine Science and Technology (Qingdao) , Qingdao 266237 , China
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16
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Washio H, Ohira S, Kanayama N, Wada K, Karino T, Komiyama R, Miyazaki M, Teshima T. Effect of a saline flush technique for head and neck imaging in dual-energy CT: improvement of image quality and perivenous artefact reduction using virtual monochromatic imaging. Clin Radiol 2019; 74:805-812. [PMID: 31320111 DOI: 10.1016/j.crad.2019.06.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Accepted: 06/12/2019] [Indexed: 10/26/2022]
Abstract
AIM To evaluate the effect of the saline flush (SF) technique on the depiction of lesions and the reduction of perivenous artefacts in the head and neck region using dual-energy computed tomography (CT) with virtual monochromatic imaging (VMI). MATERIALS AND METHODS Fifty patients with head and neck cancer were divided into two groups: group A, without a SF and group B, with a 30-ml SF. All images were acquired using fast kilovolt-switching CT (Revolution HD, GE Healthcare, Milwaukee, WI, USA). Contrast-to-noise ratios (CNRs) of the lesions were calculated at VMI energy levels ranging from 40 to 80 keV. Subjective analysis of overall image quality, delineation of lesions, and perivenous artefacts was conducted by two reviewers at both VMI energy level 40 keV and the optimal energy level (which showed optimal CNR by objective analysis). RESULTS Optimal energy level was 63 keV for group A and 61 keV for group B. At VMI energy levels ranging from 40 to 80 keV, the CNR was higher for group B. The highest subjective overall image quality was shown for group B at the optimal energy level (subjective image quality mean value, 3.40). Subjective delineation of lesions was comparable. The perivenous artefact score was significantly higher for group B (2.44 versus 2.74 [p<0.05] at 40 keV, 3.20 versus 3.46 [p<0.05] at the optimal energy level). CONCLUSION The SF technique results in an improvement of lesion CNR and a reduction of perivenous artefacts in VMI using duel-energy CT, especially at 40 keV.
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Affiliation(s)
- H Washio
- Department of Radiation Oncology, Osaka International Cancer Institute, Osaka, Japan
| | - S Ohira
- Department of Radiation Oncology, Osaka International Cancer Institute, Osaka, Japan; Department of Medical Physics and Engineering, Osaka University Graduate School of Medicine, Suita, Japan.
| | - N Kanayama
- Department of Radiation Oncology, Osaka International Cancer Institute, Osaka, Japan
| | - K Wada
- Department of Radiation Oncology, Osaka International Cancer Institute, Osaka, Japan
| | - T Karino
- Department of Radiation Oncology, Osaka International Cancer Institute, Osaka, Japan
| | - R Komiyama
- Department of Radiation Oncology, Osaka International Cancer Institute, Osaka, Japan
| | - M Miyazaki
- Department of Radiation Oncology, Osaka International Cancer Institute, Osaka, Japan
| | - T Teshima
- Department of Radiation Oncology, Osaka International Cancer Institute, Osaka, Japan
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17
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Kanayama N, Ikawa T, Wada K, Hirata T, Morimoto M, Hayashi K, Konishi K, Teshima T. EP-1142 Death from aspiration after definitive radiotherapy for hypopharyngeal or supraglottic cancer. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)31562-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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18
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Takabatake S, Ohtsuka S, Sugawara T, Hatano N, Kanayama N, Magari M, Sakagami H, Tokumitsu H. Regulation of Ca 2+/calmodulin-dependent protein kinase kinase β by cAMP signaling. Biochim Biophys Acta Gen Subj 2019; 1863:672-680. [PMID: 30660766 DOI: 10.1016/j.bbagen.2018.12.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Revised: 12/03/2018] [Accepted: 12/18/2018] [Indexed: 12/16/2022]
Abstract
BACKGROUND Ca2+/calmodulin-dependent protein kinase kinase (CaMKK) is a pivotal activator of CaMKI, CaMKIV and 5'-AMP-activated protein kinase (AMPK), controlling Ca2+-dependent intracellular signaling including various neuronal, metabolic and pathophysiological responses. Recently, we demonstrated that CaMKKβ is feedback phosphorylated at Thr144 by the downstream AMPK, resulting in the conversion of CaMKKβ into Ca2+/CaM-dependent enzyme. However, the regulatory phosphorylation of CaMKKβ at Thr144 in intact cells and in vivo remains unclear. METHODS Anti-phosphoThr144 antibody was used to characterize the site-specific phosphorylation of CaMKKβ in immunoprecipitated samples from mouse cerebellum and in transfected mammalian cells that were treated with various agonists and protein kinase inhibitors. CaMKK activity assay and LC-MS/MS analysis were used for biochemical characterization of phosphorylated CaMKKβ. RESULTS Our data suggest that the phosphorylation of Thr144 in CaMKKβ is rapidly induced by cAMP/cAMP-dependent protein kinase (PKA) signaling in CaMKKβ-transfected HeLa cells, that is physiologically relevant in mouse cerebellum. We confirmed that the catalytic subunit of PKA was capable of directly phosphorylating CaMKKβ at Thr144 in vitro and in transfected cells. In addition, the basal phosphorylation of CaMKKβ at Thr144 in transfected HeLa cells was suppressed by AMPK inhibitor (compound C). PKA-catalyzed phosphorylation reduced the autonomous activity of CaMKKβ in vitro without significant effect on the Ca2+/CaM-dependent activity, resulting in the conversion of CaMKKβ into Ca2+/CaM-dependent enzyme. CONCLUSION cAMP/PKA signaling may confer Ca2+-dependency to the CaMKKβ-mediated signaling pathway through direct phosphorylation of Thr144 in intact cells. GENERAL SIGNIFICANCE Our results suggest a novel cross-talk between cAMP/PKA and Ca2+/CaM/CaMKKβ signaling through regulatory phosphorylation.
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Affiliation(s)
- Shota Takabatake
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama 700-8530, Japan
| | - Satomi Ohtsuka
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama 700-8530, Japan
| | - Takeyuki Sugawara
- Department of Anatomy, Kitasato University School of Medicine, Sagamihara, Kanagawa 252-0374, Japan
| | - Naoya Hatano
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama 700-8530, Japan
| | - Naoki Kanayama
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama 700-8530, Japan
| | - Masaki Magari
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama 700-8530, Japan
| | - Hiroyuki Sakagami
- Department of Anatomy, Kitasato University School of Medicine, Sagamihara, Kanagawa 252-0374, Japan
| | - Hiroshi Tokumitsu
- Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama 700-8530, Japan.
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Wang G, Akiyama Y, Kanayama N, Takarada T, Maeda M. Non-Crosslinking Aggregation of DNA-Functionalized Gold Nanoparticles for Gene Diagnosis and Directed Assembly. ACS Symposium Series 2019. [DOI: 10.1021/bk-2019-1309.ch006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Guoqing Wang
- Bioengineering Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- College of Food Science and Engineering, Ocean University of China, 5 Yushan Road, Qingdao 266003, China
| | - Yoshitsugu Akiyama
- Bioengineering Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Faculty of Industrial Science and Technology, Tokyo University of Science, 102-1 Tomino, Oshamambe-cho, Yamakoshi-gun, Hokkaido 049-3514, Japan
| | - Naoki Kanayama
- Bioengineering Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Graduate School of Medicine, Science and Technology, Shinshu University, 4-7-1 Wakasato, Nagano-shi, Nagano 380-8553, Japan
| | - Tohru Takarada
- Bioengineering Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Mizuo Maeda
- Bioengineering Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
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Ogawa S, Matsuoka Y, Takada M, Matsui K, Yamane F, Kubota E, Yasuhara S, Hieda K, Kanayama N, Hatano N, Tokumitsu H, Magari M. Interleukin 34 (IL-34) cell-surface localization regulated by the molecular chaperone 78-kDa glucose-regulated protein facilitates the differentiation of monocytic cells. J Biol Chem 2018; 294:2386-2396. [PMID: 30573681 DOI: 10.1074/jbc.ra118.006226] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 12/07/2018] [Indexed: 01/06/2023] Open
Abstract
Interleukin 34 (IL-34) constitutes a cytokine that shares a common receptor, colony-stimulating factor-1 receptor (CSF-1R), with CSF-1. We recently identified a novel type of monocytic cell termed follicular dendritic cell-induced monocytic cells (FDMCs), whose differentiation depended on CSF-1R signaling through the IL-34 produced from a follicular dendritic cell line, FL-Y. Here, we report the functional mechanisms of the IL-34-mediated CSF-1R signaling underlying FDMC differentiation. CRIPSR/Cas9-mediated knockout of the Il34 gene confirmed that the ability of FL-Y cells to induce FDMCs completely depends on the IL-34 expressed by FL-Y cells. Transwell culture experiments revealed that FDMC differentiation requires a signal from a membrane-anchored form of IL-34 on the FL-Y cell surface, but not from a secreted form, in a direct interaction between FDMC precursor cells and FL-Y cells. Furthermore, flow cytometric analysis using an anti-IL-34 antibody indicated that IL-34 was also expressed on the FL-Y cell surface. Thus, we explored proteins interacting with IL-34 in FL-Y cells. Mass spectrometry analysis and pulldown assay identified that IL-34 was associated with the molecular chaperone 78-kDa glucose-regulated protein (GRP78) in the plasma membrane fraction of FL-Y cells. Consistent with this finding, GRP78-heterozygous FL-Y cells expressed a lower level of IL-34 protein on their cell surface and exhibited a reduced competency to induce FDMC differentiation compared with the original FL-Y cells. These results indicated a novel GRP78-dependent localization and specific function of IL-34 in FL-Y cells related to monocytic cell differentiation.
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Affiliation(s)
- Sayaka Ogawa
- From the Division of Medical Bioengineering, Graduate School of Natural Science and Technology
| | - Yukiko Matsuoka
- From the Division of Medical Bioengineering, Graduate School of Natural Science and Technology
| | - Miho Takada
- From the Division of Medical Bioengineering, Graduate School of Natural Science and Technology
| | - Kazue Matsui
- From the Division of Medical Bioengineering, Graduate School of Natural Science and Technology
| | - Fumihiro Yamane
- From the Division of Medical Bioengineering, Graduate School of Natural Science and Technology
| | - Eri Kubota
- the Department of Applied Chemistry and Biotechnology, Faculty of Engineering, and
| | - Shiori Yasuhara
- From the Division of Medical Bioengineering, Graduate School of Natural Science and Technology
| | - Kentaro Hieda
- From the Division of Medical Bioengineering, Graduate School of Natural Science and Technology
| | - Naoki Kanayama
- From the Division of Medical Bioengineering, Graduate School of Natural Science and Technology.,the Laboratory of Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Tsushima-Naka 3-1-1, Kita-ku, Okayama 700-8530, Japan
| | - Naoya Hatano
- the Laboratory of Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Tsushima-Naka 3-1-1, Kita-ku, Okayama 700-8530, Japan
| | - Hiroshi Tokumitsu
- From the Division of Medical Bioengineering, Graduate School of Natural Science and Technology.,the Laboratory of Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Tsushima-Naka 3-1-1, Kita-ku, Okayama 700-8530, Japan
| | - Masaki Magari
- From the Division of Medical Bioengineering, Graduate School of Natural Science and Technology, .,the Laboratory of Applied Cell Biology, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Tsushima-Naka 3-1-1, Kita-ku, Okayama 700-8530, Japan
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Sekine T, Kanayama N, Ozasa K, Nyu T, Hayashi T, Maeda M. Stochastic Binding Process of Blunt-End Stacking of DNA Molecules Observed by Atomic Force Microscopy. Langmuir 2018; 34:15078-15083. [PMID: 30179510 DOI: 10.1021/acs.langmuir.8b02224] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Hydrophobic attraction is often a physical origin of nonspecific and irreversible (uncontrollable) processes observed for colloidal and biological systems, such as aggregation, precipitation, and fouling with biomolecules. On the contrary, blunt-end stacking of complementary DNA duplex chain pairs, which is also mainly driven by hydrophobic interaction, is specific and stable enough to lead to self-assemblies of DNA nanostructures. To understand the reason behind these contradicting phenomena, we measured forces operating between two self-assembled monolayers of duplexed DNA molecules with blunt ends (DNA-SAMs) and analyzed their statistics. We found the high specificity and stability of blunt-end stacking that resulted in the high resemblance between the interaction forces measured on approaching and retracting. The other finding is on the stochastic formation process of blunt-end stacking, which appeared as a significant fluctuation of the interaction forces at separations smaller than 2.5 nm. Based on these results, we discuss the underlying mechanism of the specificity and stability of blunt-end stacking.
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Affiliation(s)
- Taito Sekine
- Department of Materials Science and Engineering, School of Materials and Chemical Technology , Tokyo Institute of Technology , 4259 Nagatsuta-cho, Midori-ku , Yokohama , Kanagawa 226-8502 , Japan
| | - Naoki Kanayama
- Graduate School of Medicine, Science and Technology , Shinshu University , 4-7-1 Wakasato , Nagano , Nagano 380-8553 , Japan
| | | | - Takashi Nyu
- Department of Materials Science and Engineering, School of Materials and Chemical Technology , Tokyo Institute of Technology , 4259 Nagatsuta-cho, Midori-ku , Yokohama , Kanagawa 226-8502 , Japan
| | - Tomohiro Hayashi
- Department of Materials Science and Engineering, School of Materials and Chemical Technology , Tokyo Institute of Technology , 4259 Nagatsuta-cho, Midori-ku , Yokohama , Kanagawa 226-8502 , Japan
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Hirata T, Ikawa T, Wada K, Kanayama N, Morimoto M, Konishi K, Takahashi H, Teshima T. PO-0772: Impact of dose escalation to nerve plexus on the outcome of neoadjuvant CRT for pancreatic cancer. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)31082-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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23
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Kobayashi T, Kanayama N, Terao T, Sugimura M. Detection of Marked Reduction of Sensitivity to Activated Protein C prior to the Onset of Thrombosis during Puerperium as Detected by Endogenous Thrombin Potential-based Assay. Thromb Haemost 2017. [DOI: 10.1055/s-0037-1614395] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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24
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Wang G, Akiyama Y, Kanayama N, Takarada T, Maeda M. Directed Assembly of Gold Nanorods by Terminal-Base Pairing of Surface-Grafted DNA. Small 2017; 13:1702137. [PMID: 29024393 DOI: 10.1002/smll.201702137] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Revised: 08/22/2017] [Indexed: 06/07/2023]
Abstract
Directed assemblies of anisotropic metal nanoparticles exhibit attractive physical and chemical properties. However, an effective methodology to prepare differently directed assemblies from the same anisotropic nanoparticles is not yet available. Gold nanorods (AuNRs) region-selectively modified with different DNA strands can form side-by-side (SBS) and end-to-end (ETE) assemblies in a non-crosslinking manner. When the complementary DNA is hybridized to the surface-bound DNA, stacking interaction between the blunt ends takes place in the designated regions. Such AuNRs assemble into highly ordered structures, assisted by capillary forces emerging on the substrate surface. Moreover, insertion of a mercury(II)-mediated thymine-thymine base pair into the periphery of the DNA layer allows selective formation of the SBS or ETE assemblies from the strictly identical AuNRs with or without mercury(II).
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Affiliation(s)
- Guoqing Wang
- Bioengineering Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Yoshitsugu Akiyama
- Bioengineering Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
- Faculty of Industrial Science and Technology, Tokyo University of Science, 102-1 Tomino, Oshamambe-cho, Yamakoshi-gun, Hokkaido, 049-3514, Japan
| | - Naoki Kanayama
- Bioengineering Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
- Interdisciplinary Graduate School of Science and Technology, Shinshu University, 4-7-1 Wakasato, Nagano-shi, Nagano, 380-8553, Japan
| | - Tohru Takarada
- Bioengineering Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Mizuo Maeda
- Bioengineering Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
- Interdisciplinary Graduate School of Science and Technology, Shinshu University, 4-7-1 Wakasato, Nagano-shi, Nagano, 380-8553, Japan
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Nakanishi A, Hatano N, Fujiwara Y, Sha'ri A, Takabatake S, Akano H, Kanayama N, Magari M, Nozaki N, Tokumitsu H. AMP-activated protein kinase-mediated feedback phosphorylation controls the Ca 2+/calmodulin (CaM) dependence of Ca 2+/CaM-dependent protein kinase kinase β. J Biol Chem 2017; 292:19804-19813. [PMID: 28974582 DOI: 10.1074/jbc.m117.805085] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2017] [Revised: 09/18/2017] [Indexed: 11/06/2022] Open
Abstract
The Ca2+/calmodulin-dependent protein kinase kinase β (CaMKKβ)/5'-AMP-activated protein kinase (AMPK) phosphorylation cascade affects various Ca2+-dependent metabolic pathways and cancer growth. Unlike recombinant CaMKKβ that exhibits higher basal activity (autonomous activity), activation of the CaMKKβ/AMPK signaling pathway requires increased intracellular Ca2+ concentrations. Moreover, the Ca2+/CaM dependence of CaMKKβ appears to arise from multiple phosphorylation events, including autophosphorylation and activities furnished by other protein kinases. However, the effects of proximal downstream kinases on CaMKKβ activity have not yet been evaluated. Here, we demonstrate feedback phosphorylation of CaMKKβ at multiple residues by CaMKKβ-activated AMPK in addition to autophosphorylation in vitro, leading to reduced autonomous, but not Ca2+/CaM-activated, CaMKKβ activity. MS analysis and site-directed mutagenesis of AMPK phosphorylation sites in CaMKKβ indicated that Thr144 phosphorylation by activated AMPK converts CaMKKβ into a Ca2+/CaM-dependent enzyme as shown by completely Ca2+/CaM-dependent CaMKK activity of a phosphomimetic T144E CaMKKβ mutant. CaMKKβ mutant analysis indicated that the C-terminal domain (residues 471-587), including the autoinhibitory region, plays an important role in stabilizing an inactive conformation in a Thr144 phosphorylation-dependent manner. Furthermore, immunoblot analysis with anti-phospho-Thr144 antibody revealed phosphorylation of Thr144 in CaMKKβ in transfected COS-7 cells that was further enhanced by exogenous expression of AMPKα. These results indicate that AMPK-mediated feedback phosphorylation of CaMKKβ regulates the CaMKKβ/AMPK signaling cascade and may be physiologically important for intracellular maintenance of Ca2+-dependent AMPK activation by CaMKKβ.
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Affiliation(s)
- Akihiro Nakanishi
- From the Division of Medical Bioengineering, Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan
| | - Naoya Hatano
- The Integrated Center for Mass Spectrometry, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan, and
| | - Yuya Fujiwara
- From the Division of Medical Bioengineering, Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan
| | - Arian Sha'ri
- From the Division of Medical Bioengineering, Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan
| | - Shota Takabatake
- From the Division of Medical Bioengineering, Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan
| | - Hiroki Akano
- From the Division of Medical Bioengineering, Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan
| | - Naoki Kanayama
- From the Division of Medical Bioengineering, Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan
| | - Masaki Magari
- From the Division of Medical Bioengineering, Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan
| | | | - Hiroshi Tokumitsu
- From the Division of Medical Bioengineering, Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan,
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26
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Wada K, Kishi N, Kanayama N, Hirata T, Kawaguchi Y, Konishi K, Teshima T. Predictors Associated with Severe Acute Esophagitis in Non-small Cell Lung Cancer (NSCLC) Patients Treated with Concomitant Boost Chemoradiation. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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27
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Kawaguchi Y, Nariki H, Kawamoto N, Kanehiro Y, Miyazaki S, Suzuki M, Magari M, Tokumitsu H, Kanayama N. SRSF1-3 contributes to diversification of the immunoglobulin variable region gene by promoting accumulation of AID in the nucleus. Biochem Biophys Res Commun 2017; 485:261-266. [DOI: 10.1016/j.bbrc.2017.02.097] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Accepted: 02/19/2017] [Indexed: 01/06/2023]
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28
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Kanayama N, Kierkels R, Steenbakkers R, Van der Schaaf A, Miyazaki M, Fujii T, Nishiyama K, Langendijk J, Teshima T. PO-064: Normal tissue complication probability model for tube feeding dependence 6 months after radiotherapy. Radiother Oncol 2017. [DOI: 10.1016/s0167-8140(17)30198-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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29
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Kanayama N, Sekine T, Ozasa K, Kishi S, Nyu T, Hayashi T, Maeda M. Terminal-Specific Interaction between Double-Stranded DNA Layers: Colloidal Dispersion Behavior and Surface Force. Langmuir 2016; 32:13296-13304. [PMID: 27951695 DOI: 10.1021/acs.langmuir.6b03470] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Double-stranded DNA-grafted nanoparticles (dsDNA-NPs) exhibit a unique dispersion behavior under high-salt conditions depending on the pairing status of their outermost base pairs (pairing or unpairing). The dsDNA-NPs having complementary (i.e., pairing) outermost base pairs spontaneously aggregate under high-salt conditions, but not when their outermost base pairs are mismatched (unpairing). In this study, we used colloidal probe atomic force microscopy to examine how the outermost base pairs affect the interaction between the dsDNA-grafted layers (dsDNA layers). To precisely assess the subtle structural differences in the dsDNA layers, we developed a method for the formation of a homogenous dsDNA layer on gold surfaces using hairpin-shaped DNAs. Homogenous dsDNA layers having complementary (G-C) or mismatched (C-C) outermost base pairs were grafted onto the surfaces of colloidal probes and gold substrates. Force-distance curves measured in an aqueous medium under high-salt conditions revealed that the surface forces between the dsDNA layers were bilateral in nature and were governed by the outermost base pairs. Between complementary outermost dsDNA layers, the surface force changed from repulsive to attractive with an increase in the NaCl concentration (10-1000 mM). The attraction observed under high-salt conditions was attributed to the site-specific interaction proceeded only between complementary dsDNA terminals, the so-called blunt-end stacking. In fact, between mismatched outermost dsDNA layers, the repulsive force was mostly dominant within the same NaCl concentration range. Our results clearly revealed that the pairing status of the outermost base pairs has significant implications for the surface forces between dsDNA layers, leading to the unique dispersion behavior of dsDNA-NPs.
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Affiliation(s)
- Naoki Kanayama
- Interdisciplinary Graduate School of Science and Technology, Shinshu University , 4-7-1 Wakasato, Nagano, Nagano 380-8553, Japan
- Bioengineering Laboratory, RIKEN , 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
| | - Taito Sekine
- Department of Materials Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology , 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8502, Japan
| | - Kazunari Ozasa
- Bioengineering Laboratory, RIKEN , 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
| | - Satomi Kishi
- Bioengineering Laboratory, RIKEN , 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
| | - Takashi Nyu
- Department of Materials Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology , 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8502, Japan
| | - Tomohiro Hayashi
- Department of Materials Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology , 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8502, Japan
| | - Mizuo Maeda
- Bioengineering Laboratory, RIKEN , 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
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30
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Akiyama Y, Wang G, Shiraishi S, Kanayama N, Takarada T, Maeda M. Rapid Naked-Eye Discrimination of Cytochrome P450 Genetic Polymorphism through Non-Crosslinking Aggregation of DNA-Functionalized Gold Nanoparticles. ChemistryOpen 2016; 5:508-512. [PMID: 28032016 PMCID: PMC5167314 DOI: 10.1002/open.201600110] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2016] [Indexed: 12/25/2022] Open
Abstract
Involvement of single-nucleotide polymorphism (SNP) genotyping in healthcare should allow for more effective use of pharmacogenomics. However, user-friendly assays without the requirement of a special instrument still remain unavailable. This study describes naked-eye SNP discrimination in exon 5 of the human cytochrome P450 2C19 monooxygenase gene, CYP2C19*1 (the wild-type allele) and CYP2C19*2 (the variant allele with G681A point mutation). The present assay is composed of allele-specific single-base primer extension and salt-induced aggregation of DNA-modified gold nanoparticles (DNA-AuNPs). Genetic samples extracted from human hair roots are subjected to this assay. The results are verified by direct sequencing. This study should promise the prospective use of DNA-AuNPs in gene diagnosis.
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Affiliation(s)
- Yoshitsugu Akiyama
- Bioengineering LaboratoryRIKEN2-1 Hirosawa, WakoSaitama351-0198Japan
- Faculty of Industrial Science and TechnologyTokyo University of Science102-1 Tomino, Oshamambe-cho, Yamakoshi-gunHokkaido049-3514Japan
| | - Guoqing Wang
- Bioengineering LaboratoryRIKEN2-1 Hirosawa, WakoSaitama351-0198Japan
| | - Shota Shiraishi
- Bioengineering LaboratoryRIKEN2-1 Hirosawa, WakoSaitama351-0198Japan
| | - Naoki Kanayama
- Bioengineering LaboratoryRIKEN2-1 Hirosawa, WakoSaitama351-0198Japan
- Interdisciplinary Graduate School of Science and TechnologyShinshu University4-7-1 Wakasato, Nagano-shiNagano380-8553Japan
| | - Tohru Takarada
- Bioengineering LaboratoryRIKEN2-1 Hirosawa, WakoSaitama351-0198Japan
| | - Mizuo Maeda
- Bioengineering LaboratoryRIKEN2-1 Hirosawa, WakoSaitama351-0198Japan
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31
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Akiyama Y, Wang G, Shiraishi S, Kanayama N, Takarada T, Maeda M. Rapid Naked-Eye Discrimination of Cytochrome P450 Genetic Polymorphism through Non-Crosslinking Aggregation of DNA-Functionalized Gold Nanoparticles. ChemistryOpen 2016; 5:507. [PMID: 28032015 PMCID: PMC5167336 DOI: 10.1002/open.201600142] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
The front cover artwork is provided by the group of Tohru Takarada at RIKEN (Japan). The image shows a colorimetric single‐nucleotide polymorphism (SNP) genotyping method that uses spontaneous aggregation of DNA‐modified gold nanoparticles (DNA–AuNPs) for the simple and rapid SNP genotyping of the human cytochrome P450 2C19 monooxygenase gene. For more details, read the full text of the Full Paper at p. 508.
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Affiliation(s)
- Yoshitsugu Akiyama
- Bioengineering LaboratoryRIKEN2-1 Hirosawa, WakoSaitama351-0198Japan
- Faculty of Industrial Science and TechnologyTokyo University of Science102-1 Tomino, Oshamambe-cho, Yamakoshi-gunHokkaido049-3514Japan
| | - Guoqing Wang
- Bioengineering LaboratoryRIKEN2-1 Hirosawa, WakoSaitama351-0198Japan
| | - Shota Shiraishi
- Bioengineering LaboratoryRIKEN2-1 Hirosawa, WakoSaitama351-0198Japan
| | - Naoki Kanayama
- Bioengineering LaboratoryRIKEN2-1 Hirosawa, WakoSaitama351-0198Japan
- Interdisciplinary Graduate School of Science and TechnologyShinshu University4-7-1 Wakasato, Nagano-shiNagano380-8553Japan
| | - Tohru Takarada
- Bioengineering LaboratoryRIKEN2-1 Hirosawa, WakoSaitama351-0198Japan
| | - Mizuo Maeda
- Bioengineering LaboratoryRIKEN2-1 Hirosawa, WakoSaitama351-0198Japan
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32
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Akiyama Y, Wang G, Shiraishi S, Kanayama N, Takarada T, Maeda M. Cover Picture: Rapid Naked-Eye Discrimination of Cytochrome P450 Genetic Polymorphism through Non-Crosslinking Aggregation of DNA-Functionalized Gold Nanoparticles (ChemistryOpen 6/2016). Chemistry 2016. [PMCID: PMC5167331 DOI: 10.1002/open.201600143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The Front Cover picture shows a colorimetric single‐nucleotide polymorphism (SNP) genotyping method using spontaneous aggregation of DNA‐modified gold nanoparticles (DNA–AuNPs). Simple and rapid SNP genotyping of the human cytochrome P450 2C19 monooxygenase gene is reported. Allele‐specific single‐base primer extension using a fragment of the gene isolated from human hair roots, followed by salt‐induced aggregation of DNA–AuNPs, results in a rapid color change from red to blue or no color change, thereby allowing SNP discrimination by the naked eye. More information can be found in the Communication by T. Takarada and co‐workers on page 508 in Issue 6, 2016 (DOI: 10.1002/open.201600110).![]()
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Affiliation(s)
- Yoshitsugu Akiyama
- Bioengineering Laboratory; RIKEN; 2-1 Hirosawa, Wako Saitama 351-0198 Japan
- Faculty of Industrial Science and Technology; Tokyo University of Science; 102-1 Tomino, Oshamambe-cho, Yamakoshi-gun Hokkaido 049-3514 Japan
| | - Guoqing Wang
- Bioengineering Laboratory; RIKEN; 2-1 Hirosawa, Wako Saitama 351-0198 Japan
| | - Shota Shiraishi
- Bioengineering Laboratory; RIKEN; 2-1 Hirosawa, Wako Saitama 351-0198 Japan
| | - Naoki Kanayama
- Bioengineering Laboratory; RIKEN; 2-1 Hirosawa, Wako Saitama 351-0198 Japan
- Interdisciplinary Graduate School of Science and Technology; Shinshu University; 4-7-1 Wakasato, Nagano-shi Nagano 380-8553 Japan
| | - Tohru Takarada
- Bioengineering Laboratory; RIKEN; 2-1 Hirosawa, Wako Saitama 351-0198 Japan
| | - Mizuo Maeda
- Bioengineering Laboratory; RIKEN; 2-1 Hirosawa, Wako Saitama 351-0198 Japan
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33
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Kishi N, Imai Y, Kanayama N, Hirata T, Kawaguchi Y, Konishi K, Nishiyama K, Teshima T. Recurrence Patterns of Postoperative Radiation Therapy for Patients With Head and Neck Squamous Cell Carcinoma. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1610] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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34
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Wang G, Akiyama Y, Shiraishi S, Kanayama N, Takarada T, Maeda M. Cross-Linking versus Non-Cross-Linking Aggregation of Gold Nanoparticles Induced by DNA Hybridization: A Comparison of the Rapidity of Solution Color Change. Bioconjug Chem 2016; 28:270-277. [DOI: 10.1021/acs.bioconjchem.6b00410] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Guoqing Wang
- Bioengineering
Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Yoshitsugu Akiyama
- Bioengineering
Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Shota Shiraishi
- Bioengineering
Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Naoki Kanayama
- Bioengineering
Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Tohru Takarada
- Bioengineering
Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Mizuo Maeda
- Bioengineering
Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
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35
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Oda T, Itoh H, Kawai K, Oda-Kishimoto A, Kobayashi T, Doi T, Uchida T, Kanayama N. Three successful deliveries involving a woman with congenital afibrinogenaemia - conventional fibrinogen concentrate infusion vs. ‘as required’ fibrinogen concentrate infusion based on changes in fibrinogen clearance -. Haemophilia 2016; 22:e478-81. [DOI: 10.1111/hae.13054] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/27/2016] [Indexed: 11/30/2022]
Affiliation(s)
- T. Oda
- Department of Obstetrics and Gynecology; Hamamatsu University School of Medicine; Hamamatsu Japan
- Department of Obstetrics and Gynecology; Fujinomiya City General Hospital; Fujinomiya Japan
| | - H. Itoh
- Department of Obstetrics and Gynecology; Hamamatsu University School of Medicine; Hamamatsu Japan
| | - K. Kawai
- Department of Obstetrics and Gynecology; Hamamatsu University School of Medicine; Hamamatsu Japan
| | - A. Oda-Kishimoto
- Department of Obstetrics and Gynecology; Hamamatsu University School of Medicine; Hamamatsu Japan
| | - T. Kobayashi
- Department of Obstetrics and Gynecology; Hamamatsu Medical Center; Hamamatsu Japan
| | - T. Doi
- Department of Obstetrics and Gynecology; Fujinomiya City General Hospital; Fujinomiya Japan
| | - T. Uchida
- Department of Obstetrics and Gynecology; Hamamatsu University School of Medicine; Hamamatsu Japan
| | - N. Kanayama
- Department of Obstetrics and Gynecology; Hamamatsu University School of Medicine; Hamamatsu Japan
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Abstract
Poly(ethylene glycol) (PEG) possessing a sulfobetaine (SB) moiety at one end and a pentaethylenehexamine (N6) at the other end (SB-PEG-N6) was newly synthesized as a blocking agent for immunosensing surfaces. The N6 moiety strongly coordinates on gold surfaces, facilitating the tethering of the PEG chain to the sensor chip surface, and leaves the SB moiety free. Non-specific adsorption of bovine serum albumin (BSA) was analyzed on the SB-PEG-N6 tethered surface and compared with the methoxy-PEG-N6 (M-PEG-N6) tethered surface using a surface plasmon resonance (SPR) sensor. Non-specific BSA adsorption decreased with decreasing PEG chain length on the SB-PEG tethered chain surface. Non-specific adsorption of BSA decreased as ionic strength increased on SB-PEG-N6 surfaces; this phenomenon was completely opposite to that observed with an M-PEG-N6 tethered chain surface. The results show that SB moieties located close to the gold surface perform well with regard to protein rejection. Actually, low-molecular weight alkane thiol SB (SB-SH) showed minimum BSA adsorption. To evaluate protein recognition efficacy on a PEGylated surface, an antibody (IgG) immobilized surface was then constructed on a gold sensor chip using SB-PEG-N6 as the blocking agent. The specific protein recognition efficacy of SB-PEG-N6/IgG co-immobilized surfaces was higher than that obtained using SB-SH/IgG co-immobilized surfaces. We conclude that SB-terminated PEG exhibits the optimal qualities of a blocking agent, as it possesses both high suppression efficacy of nonspecific protein adsorption and specific protein recognition ability.
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Affiliation(s)
- Yukichi Horiguchi
- Graduate School of Pure and Applied Sciences, University of Tsukuba, Ten-noudai 1-1-1, Tsukuba, Ibaraki 305-8573, Japan
| | - Naoki Nakayama
- Graduate School of Pure and Applied Sciences, University of Tsukuba, Ten-noudai 1-1-1, Tsukuba, Ibaraki 305-8573, Japan
| | - Naoki Kanayama
- Graduate School of Pure and Applied Sciences, University of Tsukuba, Ten-noudai 1-1-1, Tsukuba, Ibaraki 305-8573, Japan
| | - Yukio Nagasaki
- Graduate School of Pure and Applied Sciences, University of Tsukuba, Ten-noudai 1-1-1, Tsukuba, Ibaraki 305-8573, Japan and Master's School of Medical Sciences, University of Tsukuba, Ten-noudai 1-1-1, Tsukuba, Ibaraki 305-8573, Japan and Satellite Laboratory of International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute of Materials Science (NIMS), Ten-noudai 1-1-1, Tsukuba, Ibaraki 305-8573, Japan.
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Fujiwara Y, Kawaguchi Y, Fujimoto T, Kanayama N, Magari M, Tokumitsu H. Differential AMP-activated Protein Kinase (AMPK) Recognition Mechanism of Ca2+/Calmodulin-dependent Protein Kinase Kinase Isoforms. J Biol Chem 2016; 291:13802-8. [PMID: 27151216 DOI: 10.1074/jbc.m116.727867] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Indexed: 11/06/2022] Open
Abstract
Ca(2+)/calmodulin-dependent protein kinase kinase β (CaMKKβ) is a known activating kinase for AMP-activated protein kinase (AMPK). In vitro, CaMKKβ phosphorylates Thr(172) in the AMPKα subunit more efficiently than CaMKKα, with a lower Km (∼2 μm) for AMPK, whereas the CaMKIα phosphorylation efficiencies by both CaMKKs are indistinguishable. Here we found that subdomain VIII of CaMKK is involved in the discrimination of AMPK as a native substrate by measuring the activities of various CaMKKα/CaMKKβ chimera mutants. Site-directed mutagenesis analysis revealed that Leu(358) in CaMKKβ/Ile(322) in CaMKKα confer, at least in part, a distinct recognition of AMPK but not of CaMKIα.
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Affiliation(s)
- Yuya Fujiwara
- From the Division of Medical Bioengineering, Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan and
| | - Yoshinori Kawaguchi
- From the Division of Medical Bioengineering, Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan and
| | | | - Naoki Kanayama
- From the Division of Medical Bioengineering, Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan and
| | - Masaki Magari
- From the Division of Medical Bioengineering, Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan and
| | - Hiroshi Tokumitsu
- From the Division of Medical Bioengineering, Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan and
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Furuya Y, Denda M, Sakane K, Ogusu T, Takahashi S, Magari M, Kanayama N, Morishita R, Tokumitsu H. Identification of striated muscle activator of Rho signaling (STARS) as a novel calmodulin target by a newly developed genome-wide screen. Cell Calcium 2016; 60:32-40. [PMID: 27132186 DOI: 10.1016/j.ceca.2016.04.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Revised: 04/13/2016] [Accepted: 04/13/2016] [Indexed: 02/07/2023]
Abstract
To search for novel target(s) of the Ca(2+)-signaling transducer, calmodulin (CaM), we performed a newly developed genome-wide CaM interaction screening of 19,676 GST-fused proteins expressed in human. We identified striated muscle activator of Rho signaling (STARS) as a novel CaM target and characterized its CaM binding ability and found that the Ca(2+)/CaM complex interacted stoichiometrically with the N-terminal region (Ala13-Gln35) of STARS in vitro as well as in living cells. Mutagenesis studies identified Ile20 and Trp33 as the essential hydrophobic residues in CaM anchoring. Furthermore, the CaM binding deficient mutant (Ile20Ala, Trp33Ala) of STARS further enhanced its stimulatory effect on SRF-dependent transcriptional activation. These results suggest a connection between Ca(2+)-signaling via excitation-contraction coupling and the regulation of STARS-mediated gene expression in muscles.
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Affiliation(s)
- Yusui Furuya
- Division of Medical Bioengineering, Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan
| | - Miwako Denda
- CellFree Sciences Co., Ltd., Matsuyama, 790-8577, Japan
| | - Kyohei Sakane
- Division of Medical Bioengineering, Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan
| | - Tomoko Ogusu
- Division of Medical Bioengineering, Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan
| | - Sumio Takahashi
- Department of Biology, Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan
| | - Masaki Magari
- Division of Medical Bioengineering, Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan
| | - Naoki Kanayama
- Division of Medical Bioengineering, Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan
| | - Ryo Morishita
- CellFree Sciences Co., Ltd., Matsuyama, 790-8577, Japan
| | - Hiroshi Tokumitsu
- Division of Medical Bioengineering, Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan.
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Naito T, Kubono N, Ishida T, Deguchi S, Sugihara M, Itoh H, Kanayama N, Kawakami J. Relationship Between Amlodipine Pharmacokinetics And Cyp3a Activity In Lactating Women With Pregnancy-Induced Hypertension. Clin Ther 2015. [DOI: 10.1016/j.clinthera.2015.05.107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Akiyama Y, Shikagawa H, Kanayama N, Takarada T, Maeda M. Modulation of Interparticle Distance in Discrete Gold Nanoparticle Dimers and Trimers by DNA Single-Base Pairing. Small 2015; 11:3153-3161. [PMID: 25739374 DOI: 10.1002/smll.201500045] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Revised: 02/06/2015] [Indexed: 06/04/2023]
Abstract
Self-assembled structures of metallic nanoparticles with dynamically changeable interparticle distance hold promise for the regulation of collective physical properties. This paper describes gold nanoparticle dimers and trimers that exhibit spontaneous and reversible changes in interparticle distance. To exploit this property, a gold nanoparticle is modified with precisely one long DNA strand and approximately five short DNA strands. The long DNA serves to align the nanoparticles on a template DNA via hybridization, while the short DNAs function to induce the interparticle distance changes. The obtained dimer and trimer are characterized with gel electrophoresis, dynamic light scattering measurements, and transmission electron microscopy (TEM). When the complementary short DNA is added to form the fully matched duplexes on the particle surface in the presence of MgCl2 , spontaneous reduction of the interparticle distance is observed with TEM and cryo-electron microscopy. By contrast, when the terminal-mismatched DNA is added, no structural change occurs under the same conditions. Therefore, the single base pairing/unpairing at the outermost surface of the nanoparticle impacts the interparticle distance. This unique feature could be applied to the regulation of structures and properties of various DNA-functionalized nanoparticle assemblies.
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Affiliation(s)
- Yoshitsugu Akiyama
- Bioengineering Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Hiroto Shikagawa
- Bioengineering Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Naoki Kanayama
- Bioengineering Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Tohru Takarada
- Bioengineering Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Mizuo Maeda
- Bioengineering Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
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Fujiwara Y, Hiraoka Y, Fujimoto T, Kanayama N, Magari M, Tokumitsu H. Analysis of Distinct Roles of CaMKK Isoforms Using STO-609-Resistant Mutants in Living Cells. Biochemistry 2015; 54:3969-77. [DOI: 10.1021/acs.biochem.5b00149] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yuya Fujiwara
- Division
of Medical Bioengineering, Graduate School of Natural Science and
Technology, Okayama University, Okayama 700-8530, Japan
| | - Yuri Hiraoka
- Division
of Medical Bioengineering, Graduate School of Natural Science and
Technology, Okayama University, Okayama 700-8530, Japan
| | | | - Naoki Kanayama
- Division
of Medical Bioengineering, Graduate School of Natural Science and
Technology, Okayama University, Okayama 700-8530, Japan
| | - Masaki Magari
- Division
of Medical Bioengineering, Graduate School of Natural Science and
Technology, Okayama University, Okayama 700-8530, Japan
| | - Hiroshi Tokumitsu
- Division
of Medical Bioengineering, Graduate School of Natural Science and
Technology, Okayama University, Okayama 700-8530, Japan
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Kimura A, Kanayama N, Ogawa A, Shibata H, Nakashita H, Takarada T, Maeda M. Thermodynamics-based rational design of DNA block copolymers for quantitative detection of single-nucleotide polymorphisms by affinity capillary electrophoresis. Anal Chem 2014; 86:11425-33. [PMID: 25358129 DOI: 10.1021/ac503522f] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Diblock copolymers composed of allele-specific oligodeoxyribonucleotide (ODN) and poly(ethylene glycol) (PEG) are used as an affinity probe of free-solution capillary electrophoresis to quantitatively detect single-base substitutions in genetic samples. During electrophoresis, the probe binds strongly to a wild-type single-stranded DNA analyte (WT) through hybridization, while it binds weakly to its single-base-mutated DNA analyte (MT) due to a mismatch. Complex formation with the probe augments the hydrodynamic friction of either analyte, thereby retarding its migration. The difference in affinity strength leads to separation of the WT, MT, and contaminants, including the PCR primers used for sample preparation. The optimal sequence of the probe's ODN segment is rationally determined in such a way that the binding constant between the ODN segment and MT at the capillary temperature is on the order of 10(6) M(-1). The validity of this guideline is verified using various chemically synthesized DNA analytes, as well as those derived from a bacterial genome. The peak area ratio of MT agrees well with its feed ratio, suggesting the prospective use of the present method in SNP allele frequency estimation.
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Affiliation(s)
- Ayumi Kimura
- Bioengineering Laboratory, RIKEN , 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
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Akiyama Y, Shikagawa H, Kanayama N, Takarada T, Maeda M. DNA dangling-end-induced colloidal stabilization of gold nanoparticles for colorimetric single-nucleotide polymorphism genotyping. Chemistry 2014; 20:17420-5. [PMID: 25349129 DOI: 10.1002/chem.201404801] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2014] [Indexed: 12/19/2022]
Abstract
A single-nucleotide polymorphism (SNP) detection method was developed by combining single-base primer extension and salt-induced aggregation of gold nanoparticles densely functionalized with double-stranded DNA (dsDNA-AuNP). The dsDNA-AuNPs undergo rapid aggregation in a medium of high ionic strength, whereas particles having a single-base protrusion at the outermost surface disperse stably, allowing detection of a single-base difference in length by color changes. When SNP typing primers are used as analytes to hybridize to the single-stranded DNA on the AuNP surface, the resulting dsDNA-AuNP works as a visual indicator of single-base extension. A set of four extension reaction mixtures is prepared using each of ddNTPs and subsequently subjected to the aggregation assay. Three mixtures involving ddNTP that is not complementary to the SNP site in the target produce the aggregates that exhibit a purple color. In contrast, one mixture with the complementary ddNTP generates the single-base protrusion and appears red. This method could potentially be used in clinical diagnostics for personalized medicine.
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Affiliation(s)
- Yoshitsugu Akiyama
- Bioengineering Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan), Fax: (+81) 4-8462-4658
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Kanayama N, Nishiyama K, Kawaguchi Y, Konishi K, Teshima T. Patterns of Cervical Lymph Node Metastasis in Definitive Radiation Therapy for Hypopharyngeal Cancer: Implications for the Elective Target Volume Delineation. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.1623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Yamane F, Nishikawa Y, Matsui K, Asakura M, Iwasaki E, Watanabe K, Tanimoto H, Sano H, Fujiwara Y, Stanley ER, Kanayama N, Mabbott NA, Magari M, Ohmori H. CSF-1 receptor-mediated differentiation of a new type of monocytic cell with B cell-stimulating activity: its selective dependence on IL-34. J Leukoc Biol 2014; 95:19-31. [PMID: 24052571 PMCID: PMC3868188 DOI: 10.1189/jlb.0613311] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
With the use of a mouse FDC line, FL-Y, we have been analyzing roles for FDCs in controlling B cell fate in GCs. Beside these regulatory functions, we fortuitously found that FL-Y cells induced a new type of CD11b⁺ monocytic cells (F4/80⁺, Gr-1⁻, Ly6C⁻, I-A/E(-/lo), CD11c⁻, CD115⁺, CXCR4⁺, CCR2⁺, CX₃CR1⁻) when cultured with a Lin⁻c-kit⁺ population from mouse spleen cells. The developed CD11b⁺ cells shared a similar gene-expression profile to mononuclear phagocytes and were designated as FDMCs. Here, we describe characteristic immunological functions and the induction mechanism of FDMCs. Proliferation of anti-CD40 antibody-stimulated B cells was markedly accelerated in the presence of FDMCs. In addition, the FDMC-activated B cells efficiently acquired GC B cell-associated markers (Fas and GL-7). We observed an increase of FDMC-like cells in mice after immunization. On the other hand, FL-Y cells were found to produce CSF-1 as well as IL-34, both of which are known to induce development of macrophages and monocytes by binding to the common receptor, CSF-1R, expressed on the progenitors. However, we show that FL-Y-derived IL-34, but not CSF-1, was selectively responsible for FDMC generation using neutralizing antibodies and RNAi. We also confirmed that FDMC generation was strictly dependent on CSF-1R. To our knowledge, a CSF-1R-mediated differentiation process that is intrinsically specific for IL-34 has not been reported. Our results provide new insights into understanding the diversity of IL-34 and CSF-1 signaling pathways through CSF-1R.
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Affiliation(s)
- Fumihiro Yamane
- Department of Bioscience and Biotechnology, Okayama University Graduate School of Natural Science and Technology, Okayama, Japan
| | - Yumiko Nishikawa
- Department of Bioscience and Biotechnology, Okayama University Graduate School of Natural Science and Technology, Okayama, Japan
| | - Kazue Matsui
- Department of Bioscience and Biotechnology, Okayama University Graduate School of Natural Science and Technology, Okayama, Japan
| | - Miki Asakura
- Department of Bioscience and Biotechnology, Okayama University Graduate School of Natural Science and Technology, Okayama, Japan
| | - Eriko Iwasaki
- Department of Bioscience and Biotechnology, Okayama University Graduate School of Natural Science and Technology, Okayama, Japan
| | - Koji Watanabe
- Department of Bioscience and Biotechnology, Okayama University Graduate School of Natural Science and Technology, Okayama, Japan
| | - Hikaru Tanimoto
- Department of Bioscience and Biotechnology, Okayama University Graduate School of Natural Science and Technology, Okayama, Japan
| | - Hiroki Sano
- Department of Bioscience and Biotechnology, Okayama University Graduate School of Natural Science and Technology, Okayama, Japan
| | - Yuki Fujiwara
- Department of Bioscience and Biotechnology, Okayama University Graduate School of Natural Science and Technology, Okayama, Japan
| | - E. Richard Stanley
- Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, Bronx, New York, USA; and
| | - Naoki Kanayama
- Department of Bioscience and Biotechnology, Okayama University Graduate School of Natural Science and Technology, Okayama, Japan
| | - Neil A. Mabbott
- The Roslin Institute and Royal (Dick) School of Veterinary Sciences, University of Edinburgh, Midlothian, United Kingdom
| | - Masaki Magari
- Department of Bioscience and Biotechnology, Okayama University Graduate School of Natural Science and Technology, Okayama, Japan; ,Correspondence: Dept. of Bioscience and Biotechnology, Okayama University Graduate School of Natural Science and Technology, Tsushima-Naka 3-1-1, Kita-ku, Okayama 700-8530, Japan. E-mail: (M.M.) or (H.O.)
| | - Hitoshi Ohmori
- Department of Bioscience and Biotechnology, Okayama University Graduate School of Natural Science and Technology, Okayama, Japan; ,Correspondence: Dept. of Bioscience and Biotechnology, Okayama University Graduate School of Natural Science and Technology, Tsushima-Naka 3-1-1, Kita-ku, Okayama 700-8530, Japan. E-mail: (M.M.) or (H.O.)
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Isoda K, Kanayama N, Fujita M, Takarada T, Maeda M. DNA Terminal Mismatch-Induced Stabilization of Polymer Micelles from RAFT-Generated Poly(N-isopropylacrylamide)-DNA Block Copolymers. Chem Asian J 2013; 8:3079-84. [DOI: 10.1002/asia.201300704] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2013] [Revised: 06/24/2013] [Indexed: 12/21/2022]
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Kanayama N, Takarada T, Fujita M, Maeda M. DNA Terminal Breathing Regulated by Metal Ions for Colloidal Logic Gates. Chemistry 2013; 19:10794-8. [DOI: 10.1002/chem.201301995] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2013] [Indexed: 02/07/2023]
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Shibata H, Ogawa A, Kanayama N, Takarada T, Maeda M. Dumbbell-shaped DNA analytes amplified by polymerase chain reaction for robust single-nucleotide polymorphism genotyping by affinity capillary electrophoresis. Anal Chem 2013; 85:5347-52. [PMID: 23659631 DOI: 10.1021/ac400900b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A sample preparation method was developed for single-nucleotide polymorphism (SNP) genotyping based on hybridization between a single-stranded DNA (ssDNA) analyte and an allele-specific oligonucleotide (ASO) probe. When the SNP site is located in the stable secondary structure, the folding of this analyte imposes kinetic penalties on the hybridization with the ASO probe. To address this issue, the sequence of the ssDNA analyte was converted from the original one so that the analyte exhibited a clear dumbbell-shaped structure composed of two stem-loop moieties and an unfolded probe-binding site. The as-prepared analyte was structurally favorable for hybridization with the ASO probe, irrespective of the original sequence and secondary structure of the analyte. The sequence conversion was easily achieved by polymerase chain reaction using forward and reverse primers having an additional sequence at the 5'-terminus. These ssDNA analytes were subjected to affinity capillary electrophoresis using a diblock copolymer probe composed of an ASO segment and a poly(ethylene glycol) segment. The 70-base dumbbell-shaped analytes with a single-base difference were clearly separated within 12 min, although the original ones exhibited almost no separation due to the undesired folding of the probe-binding site. This sample preparation method should open up a wide range of applications for the ASO probes in genetic analysis.
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Affiliation(s)
- Hideaki Shibata
- Bioengineering Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
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Yurimoto S, Fujimoto T, Magari M, Kanayama N, Kobayashi R, Tokumitsu H. In vitro substrate phosphorylation by Ca²⁺/calmodulin-dependent protein kinase kinase using guanosine-5'-triphosphate as a phosphate donor. BMC Biochem 2012; 13:27. [PMID: 23216827 PMCID: PMC3537517 DOI: 10.1186/1471-2091-13-27] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/25/2012] [Accepted: 11/29/2012] [Indexed: 01/29/2023]
Abstract
Background Ca2+/calmodulin-dependent protein kinase kinase (CaMKK) phosphorylates and activates particular downstream protein kinases — including CaMKI, CaMKIV, and AMPK— to stimulate multiple Ca2+-signal transduction pathways. To identify previously unidentified CaMKK substrates, we used various nucleotides as phosphate donors to develop and characterize an in vitro phosphorylation assay for CaMKK. Results Here, we found that the recombinant CaMKK isoforms were capable of utilizing Mg-GTP as a phosphate donor to phosphorylate the Thr residue in the activation-loop of CaMKIα (Thr177) and of AMPK (Thr172) in vitro. Kinetic analysis indicated that the Km values of CaMKK isoforms for GTP (400-500 μM) were significantly higher than those for ATP (~15 μM), and a 2- to 4-fold decrease in Vmax was observed with GTP. We also confirmed that an ATP competitive CaMKK inhibitor, STO-609, also competes with GTP to inhibit the activities of CaMKK isoforms. In addition, to detect enhanced CaMKI phosphorylation in brain extracts with Mg-GTP and recombinant CaMKKs, we found potential CaMKK substrates of ~45 kDa and ~35 kDa whose Ca2+/CaM-induced phosphorylation was inhibited by STO-609. Conclusions These results indicated that screens that use STO-609 as a CaMKK inhibitor and Mg-GTP as a CaMKK-dependent phosphate donor might be useful to identify previously unidentified downstream target substrates of CaMKK.
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Affiliation(s)
- Saki Yurimoto
- Department of Signal Transduction Sciences, Faculty of Medicine, Kagawa University, 1750-1 Miki-cho, Kita-gun, Kagawa 761-0793, Japan
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Tsukada H, Watanabe T, Kanayama N, Takarada T, Maeda M. Quantitative SNP genotyping by affinity capillary electrophoresis using PEG-oligodeoxyribonucleotide block copolymers with electroosmotic flow. Electrophoresis 2012; 33:2122-9. [PMID: 22821487 DOI: 10.1002/elps.201200073] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Quantitative SNP detection was demonstrated with an ACE using a PEG-oligodeoxyribonucleotide block copolymer (PEG-b-ODN) as a probe in the presence of an EOF. The probe's PEG segment with large molecular weight and small polydispersity yielded a high resolution in the separation of a chemically synthesized 60-base ssDNA (WT) and its single-base-substituted mutant (MT). A mixture of WT and MT was clearly separated within 10 min by simultaneously using two types of PEG-b-ODN probes whose ODN segments were complementary to WT and MT and whose PEG segments were of different lengths. The peak area ratio between WT and MT was in good agreement with the feed ratio. The averaged difference between the feed and observed ratio of MT was determined to be 0.23%, which is lower than that of any other methods. The ACE using the PEG-b-ODN probes in the presence of EOF could be utilized as a facile method for estimating SNP allele frequency in various research fields.
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Affiliation(s)
- Harumi Tsukada
- Bioengineering Laboratory, RIKEN Advanced Science Institute, Wako, Saitama, Japan
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