1
|
Short E, Chagas J, Kurihara M, Ishikawa Y, Chambers JP, Bridges J, Sano H. Effect of common sedation agents on feline splenic size determined via ultrasonography. N Z Vet J 2023; 71:244-250. [PMID: 37345417 DOI: 10.1080/00480169.2023.2223177] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Accepted: 06/05/2023] [Indexed: 06/23/2023]
Abstract
AIMS To evaluate the effect of IM administration of three sedative drugs, acepromazine, alfaxalone and dexmedetomidine, in combination with morphine, on the size of the feline spleen using ultrasonography. METHODS Twenty-four client-owned cats undergoing elective de-sexing or minor procedures were recruited for a focused ultrasonographic examination of the spleen prior to and at 10, 20 and 30 minutes following administration of one of three randomly assigned IM sedation protocols: 0.05 mg/kg acepromazine (ACE group), 3 mg/kg alfaxalone (ALF group), or 10 μg/kg dexmedetomidine (DEX group), in combination with 0.5 mg/kg morphine. B-mode images of the spleen were collected and measured following a standardised protocol. Cardiorespiratory parameters and sedation score were also recorded. Mean thickness of the head, body and tail of the spleen for each group at 10, 20 and 30 minutes after drug administration was compared to baseline. RESULTS Mean splenic thickness increased over time in the ACE group (thickness of body at T0 = 8.9 (SE 2.1) mm and at T30 = 10.5 (SE 2.0) mm; p = 0.001) and the ALF group (thickness of body at T0 = 8.8 (SE 1.0) mm and at T30 = 10.3 (SE 1.7) mm; p = 0.022) but not in the DEX group (thickness of body at T0 = 8.6 mm (1.2) and at T30 = 8.9 mm (0.6); p = 0.67). Mean arterial blood pressure in the DEX group was significantly higher than in the other groups (p = 0.002). Sedation scores in the DEX group were consistently high for the entire period. However, the sedation score in the ACE group increased over 30 minutes (p = 0.007). Sedation score in the ALF group was highest at 10 minutes but gradually decreased over the following 20 minutes (p = 0.003). CONCLUSIONS Sedation with IM dexmedetomidine and morphine did not change splenic size, whereas acepromazine or alfaxalone and morphine increased it regardless of the degree of sedation. CLINICAL RELEVANCE Where splenomegaly is identified in a cat sedated with acepromazine or alfaxalone, the effects of the sedation protocol could be considered as a possible cause.
Collapse
Affiliation(s)
- E Short
- Tāwharau Ora - School of Veterinary Science, Massey University, Palmerston North, New Zealand
| | - J Chagas
- Tāwharau Ora - School of Veterinary Science, Massey University, Palmerston North, New Zealand
| | - M Kurihara
- Tāwharau Ora - School of Veterinary Science, Massey University, Palmerston North, New Zealand
| | - Y Ishikawa
- Tāwharau Ora - School of Veterinary Science, Massey University, Palmerston North, New Zealand
| | - J P Chambers
- Tāwharau Ora - School of Veterinary Science, Massey University, Palmerston North, New Zealand
| | - J Bridges
- Tāwharau Ora - School of Veterinary Science, Massey University, Palmerston North, New Zealand
| | - H Sano
- Tāwharau Ora - School of Veterinary Science, Massey University, Palmerston North, New Zealand
| |
Collapse
|
2
|
Ichimaru Y, Kato K, Sugiura K, Ogawa S, Jin W, Kurihara M, Yamaguchi Y, Imai M, Kurosaki H. Aqua-{μ-1,4-bis-[(1,4,7,10-tetra-aza-cyclo-dodecan-1-yl)meth-yl]benzene}(nitrato-κ O)dicopper(II) tris-(nitrate) trihydrate. IUCrdata 2023; 8:x230462. [PMID: 37936873 PMCID: PMC10626620 DOI: 10.1107/s2414314623004625] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Accepted: 05/25/2023] [Indexed: 11/09/2023] Open
Abstract
In the title dinuclear CuII complex, [Cu2(NO3)(C24H46N8)(H2O)](NO3)3·3H2O, the two CuII mol-ecules both have a square-pyramidal geometry, but the ligands in the axial positions are different: a water mol-ecule and a nitrate ion. All nitrate ions, water mol-ecules, and N-H groups are involved in an inter-molecular hydrogen-bond network.
Collapse
Affiliation(s)
- Yoshimi Ichimaru
- Faculty of Pharmaceutical Sciences, Shonan University of Medical Sciences, 16-48, Kamishinano, Totsuka-ku, Yokohama, Kanagawa 244-0806, Japan
| | - Koichi Kato
- Faculty of Pharmaceutical Sciences, Shonan University of Medical Sciences, 16-48, Kamishinano, Totsuka-ku, Yokohama, Kanagawa 244-0806, Japan
| | - Kirara Sugiura
- College of Pharmacy, Kinjo Gakuin University, 2-1723 Omori, Nagoya 463-8521, Japan
| | - Sarina Ogawa
- College of Pharmacy, Kinjo Gakuin University, 2-1723 Omori, Nagoya 463-8521, Japan
| | - Wanchun Jin
- College of Pharmacy, Kinjo Gakuin University, 2-1723 Omori, Nagoya 463-8521, Japan
| | - Masaaki Kurihara
- Faculty of Pharmaceutical Sciences, Shonan University of Medical Sciences, 16-48, Kamishinano, Totsuka-ku, Yokohama, Kanagawa 244-0806, Japan
| | - Yoshihiro Yamaguchi
- Environmental Safety Center, Kumamoto University, 39-1 Kurokami 2-Chome, Chuo-ku, Kumamoto, 860-8555, Japan
| | - Masanori Imai
- College of Pharmacy, Kinjo Gakuin University, 2-1723 Omori, Nagoya 463-8521, Japan
| | - Hiromasa Kurosaki
- College of Pharmacy, Kinjo Gakuin University, 2-1723 Omori, Nagoya 463-8521, Japan
| |
Collapse
|
3
|
Moriya SS, Funaki K, Demizu Y, Kurihara M, Kittaka A, Sugiyama T. Synthesis and properties of PNA containing a dicationic nucleobase based on N 4-benzoylated cytosine. Bioorg Med Chem Lett 2023; 88:129287. [PMID: 37094725 DOI: 10.1016/j.bmcl.2023.129287] [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: 03/12/2023] [Revised: 04/05/2023] [Accepted: 04/13/2023] [Indexed: 04/26/2023]
Abstract
We report the synthesis of a peptide nucleic acid (PNA) monomer containing N4-bis(aminomethyl)benzoylated cytosine (BzC2+ base). The BzC2+ monomer was incorporated into PNA oligomers using Fmoc-based solid-phase synthesis. The BzC2+ base in PNA had two positive charges and exhibited greater affinity for DNA G base than the natural C base. The BzC2+ base stabilized PNA-DNA heteroduplexes through electrostatic attractions, even in high salt conditions. The two positive charges on the BzC2+ residue did not compromise the sequence specificity of PNA oligomers. These insights will aid the future design of cationic nucleobases.
Collapse
Affiliation(s)
- Shun-Suke Moriya
- Faculty of Pharmaceutical Sciences, Teikyo University, Itabashi-ku, Tokyo 173-8605, Japan
| | - Kaoru Funaki
- Faculty of Pharmaceutical Sciences, Teikyo University, Itabashi-ku, Tokyo 173-8605, Japan
| | - Yosuke Demizu
- Division of Organic Chemistry, National Institute of Health Sciences, Ministry of Health and Welfare, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki-shi, Kanagawa 210-9501, Japan
| | - Masaaki Kurihara
- Faculty of Pharmaceutical Sciences, Shonan University of Medical Sciences, Yokohama, Kanagawa 244-0806, Japan
| | - Atsushi Kittaka
- Faculty of Pharmaceutical Sciences, Teikyo University, Itabashi-ku, Tokyo 173-8605, Japan
| | - Toru Sugiyama
- Faculty of Pharmaceutical Sciences, Teikyo University, Itabashi-ku, Tokyo 173-8605, Japan.
| |
Collapse
|
4
|
Ichimaru Y, Kato K, Nakatani R, Isomura R, Sugiura K, Yamaguchi Y, Jin W, Mizutani H, Imai M, Kurihara M, Fujita M, Otsuka M, Kurosaki H. Structural Characterization of Zinc(II)/Cobalt(II) Complexes of Chiral N-(Anthracen-9-yl)methyl-N,N-bis(2-picolyl)amine and Evaluation of DNA Photocleavage Activity. Chem Pharm Bull (Tokyo) 2023; 71:545-551. [PMID: 37394603 DOI: 10.1248/cpb.c23-00043] [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] [Indexed: 07/04/2023]
Abstract
We designed and synthesized a chiral ligand N-(anthracen-9-ylmethyl)-1-(pyridin-2-yl)-N-(pyridin-2-ylmethyl)ethanamine (APPE) DNA photocleavage agent to investigate the effects of chirality of bis(2-picolyl)amine on the DNA photocleavage activity of metal complexes. The structures of ZnII and CoII complexes in APPE were analyzed via X-ray crystallography and fluorometric titration. APPE formed metal complexes with a 1 : 1 stoichiometry in both the crystalline and solution states. Fluorometric titration was used to show that the ZnII and CoII association constants of these complexes (log Kas) were 4.95 and 5.39, respectively. The synthesized complexes were found to cleave pUC19 plasmid DNA when irradiated at 370 nm. The DNA photocleavage activity of the ZnII complex was higher than that of the CoII complex. The absolute configuration of the methyl-attached carbon did not affect DNA cleavage activity and, unfortunately, an achiral APPE derivative without the methyl group (ABPM) was found to perform DNA photocleavage more effectively than APPE. One reason for this may be that the methyl group suppressed the structural flexibility of the photosensitizer. These results will be useful for the design of new photoreactive reagents.
Collapse
Affiliation(s)
- Yoshimi Ichimaru
- Faculty of Pharmaceutical Sciences, Shonan University of Medical Sciences
| | - Koichi Kato
- Faculty of Pharmaceutical Sciences, Shonan University of Medical Sciences
| | | | | | | | | | - Wanchun Jin
- College of Pharmacy, Kinjo Gakuin University
| | | | | | - Masaaki Kurihara
- Faculty of Pharmaceutical Sciences, Shonan University of Medical Sciences
| | - Mikako Fujita
- Medicinal and Biological Chemistry Science Farm Joint Research Laboratory, Faculty of Life Sciences, Kumamoto University
| | - Masami Otsuka
- Medicinal and Biological Chemistry Science Farm Joint Research Laboratory, Faculty of Life Sciences, Kumamoto University
- Department of Drug Discovery, Science Farm Ltd
| | | |
Collapse
|
5
|
Ichimaru Y, Kato K, Kurihara M, Jin W, Koike T, Kurosaki H. Bis(nitrato-κ O)(1,4,8,11-tetraazacyclotetradecane-κ 4
N)zinc(II) methanol monosolvate. IUCrData 2022; 7:x220854. [PMID: 36340980 PMCID: PMC9635416 DOI: 10.1107/s2414314622008549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 08/25/2022] [Indexed: 11/23/2022] Open
Abstract
The coordination of the central ZnII atoms in the two different Zn-cyclam units is distorted octahedral. The two ZnII atoms in the crystal structure of the title complex, [Zn(NO3)2(C10H24N4)]·CH3OH, have a distorted octahedral coordination sphere, defined by 1,4,8,11-tetraazacyclotetradecane (cyclam) N atoms in the equatorial plane and nitrate O atoms in the axial sites. The conformation of the cyclam is trans-III (R, R, S, S), which is typical for metal–cyclam complexes. Nitrate anions are involved in intra- and intermolecular hydrogen bonding with the N–H groups of the ZnII–cyclam unit. Together with the methanol solvent molecule, the hydrogen-bonding network connects the ZnII–cyclam units into ribbons running parallel to the a axis.![]()
Collapse
|
6
|
Moriya SS, Shibasaki H, Kohara M, Kuwata K, Imamura Y, Demizu Y, Kurihara M, Kittaka A, Sugiyama T. Synthesis and characterization of PNA oligomers containing preQ 1 as a positively charged guanine analogue. Bioorg Med Chem Lett 2021; 39:127850. [PMID: 33662538 DOI: 10.1016/j.bmcl.2021.127850] [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: 12/24/2020] [Revised: 01/28/2021] [Accepted: 02/05/2021] [Indexed: 10/22/2022]
Abstract
We report the synthesis of a peptide nucleic acid (PNA) monomer containing preQ1, a positively charged guanine analogue. The new monomer was incorporated into PNA oligomers using standard Fmoc-chemistry-based solid-phase synthesis. The preQ1 unit-containing PNA oligomers exhibited improved affinity for their complementary DNA through electrostatic attraction, and their sequence specificity was not compromised. It could be beneficial to incorporate preQ1 into PNA oligomers instead of guanine when creating antisense/antigene agents or research tools.
Collapse
Affiliation(s)
- Shun-Suke Moriya
- Faculty of Pharmaceutical Sciences, Teikyo University, Itabashi-ku, Tokyo 173-8605, Japan
| | - Hatsune Shibasaki
- Faculty of Pharmaceutical Sciences, Teikyo University, Itabashi-ku, Tokyo 173-8605, Japan
| | - Misaki Kohara
- Faculty of Pharmaceutical Sciences, Teikyo University, Itabashi-ku, Tokyo 173-8605, Japan
| | - Keiko Kuwata
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Chikusa-ku, Nagoya 464-8601, Japan
| | - Yasutada Imamura
- Faculty of Engineering, Kogakuin University, 2665-1 Nakano, Hachioji, Tokyo 192-0015, Japan
| | - Yosuke Demizu
- Division of Organic Chemistry, National Institute of Health Sciences, Ministry of Health and Welfare, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki-shi, Kanagawa 210-9501, Japan
| | - Masaaki Kurihara
- School of Pharmacy, International University of Health and Welfare, 2600-1, Kitakanemaru, Ohtawara, Tochigi 324-8501, Japan
| | - Atsushi Kittaka
- Faculty of Pharmaceutical Sciences, Teikyo University, Itabashi-ku, Tokyo 173-8605, Japan.
| | - Toru Sugiyama
- Faculty of Pharmaceutical Sciences, Teikyo University, Itabashi-ku, Tokyo 173-8605, Japan.
| |
Collapse
|
7
|
Yuyama M, Ito T, Arai Y, Kadowaki Y, Iiyama N, Keino A, Hiraoka Y, Kanaya T, Momose Y, Kurihara M. Risk Prediction Method for Anticholinergic Action Using Auto-quantitative Structure-Activity Relationship and Docking Study with Molecular Operating Environment. Chem Pharm Bull (Tokyo) 2021; 68:773-778. [PMID: 32741919 DOI: 10.1248/cpb.c20-00249] [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] [Indexed: 11/22/2022]
Abstract
Lower urinary tract symptoms (LUTS) induced by anticholinergic drug action impair the QOL of patients and are associated with a poor prognosis. Therefore, it is expedient to develop methods of predicting the anticholinergic side effects of drugs, which we aimed to achieve in this study using a quantitative structure-activity relationship (QSAR) and docking study with molecular operations environment (MOE; Molecular Simulation Informatics Systems [MOLSIS], Inc.) In the QSAR simulation, the QSAR model built using the partial least squares regression (PLS) and genetic algorithm-multiple linear regression (GA-MLR) methods showed remarkable coefficient of determination (R2) and XR2 values. In the docking study, a specific relationship was identified between the adjusted docking score (-S) and bioactivity (pKi) values. In conclusion, the methods developed could be useful for in silico risk assessment of LUTS, and plans are potentially applicable to numerous drugs with anticholinergic activity that induce serious side effects, limiting their use.
Collapse
Affiliation(s)
- Materu Yuyama
- Graduate School of Pharmaceutical Sciences, International University of Health and Welfare Graduate School
| | - Takeshi Ito
- Graduate School of Pharmaceutical Sciences, International University of Health and Welfare Graduate School.,Department of Pharmaceutical Sciences, International University of Health and Welfare
| | - Yumiko Arai
- Graduate School of Pharmaceutical Sciences, International University of Health and Welfare Graduate School
| | - Yuki Kadowaki
- Department of Pharmaceutical Sciences, International University of Health and Welfare
| | - Natsumi Iiyama
- Department of Pharmaceutical Sciences, International University of Health and Welfare
| | - Ayako Keino
- Department of Pharmaceutical Sciences, International University of Health and Welfare
| | - Yurina Hiraoka
- Department of Pharmaceutical Sciences, International University of Health and Welfare
| | - Takayuki Kanaya
- Department of Pharmaceutical Sciences, International University of Health and Welfare
| | - Yasuyuki Momose
- Graduate School of Pharmaceutical Sciences, International University of Health and Welfare Graduate School.,Department of Pharmaceutical Sciences, International University of Health and Welfare
| | - Masaaki Kurihara
- Graduate School of Pharmaceutical Sciences, International University of Health and Welfare Graduate School.,Department of Pharmaceutical Sciences, International University of Health and Welfare
| |
Collapse
|
8
|
Yuyama M, Misawa T, Demizu Y, Kanaya T, Kurihara M. Design and synthesis of novel estrogen receptor antagonists with acetal containing biphenylmethane skeleton. Results in Chemistry 2021. [DOI: 10.1016/j.rechem.2021.100124] [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] Open
|
9
|
Shoda T, Ohoka N, Tsuji G, Fujisato T, Inoue H, Demizu Y, Naito M, Kurihara M. Targeted Protein Degradation by Chimeric Compounds using Hydrophobic E3 Ligands and Adamantane Moiety. Pharmaceuticals (Basel) 2020; 13:ph13030034. [PMID: 32106507 PMCID: PMC7151680 DOI: 10.3390/ph13030034] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [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: 01/20/2020] [Revised: 02/19/2020] [Accepted: 02/19/2020] [Indexed: 11/16/2022] Open
Abstract
Targeted protein degradation using small chimeric molecules, such as proteolysis-targeting chimeras (PROTACs) and specific and nongenetic inhibitors of apoptosis protein [IAP]-dependent protein erasers (SNIPERs), is a promising technology in drug discovery. We recently developed a novel class of chimeric compounds that recruit the aryl hydrocarbon receptor (AhR) E3 ligase complex and induce the AhR-dependent degradation of target proteins. However, these chimeras contain a hydrophobic AhR E3 ligand, and thus, degrade target proteins even in cells that do not express AhR. In this study, we synthesized new compounds in which the AhR ligands were replaced with a hydrophobic adamantane moiety to investigate the mechanisms of AhR-independent degradation. Our results showed that the compounds, 2, 3, and 16 induced significant degradation of some target proteins in cells that do not express AhR, similar to the chimeras containing AhR ligands. However, in cells expressing AhR, 2, 3, and 16 did not induce the degradation of other target proteins, in contrast with their response to chimeras containing AhR ligands. Overall, it was suggested that target proteins susceptible to the hydrophobic tagging system are degraded by chimeras containing hydrophobic AhR ligands even without AhR.
Collapse
Affiliation(s)
- Takuji Shoda
- Division of Organic Chemistry, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki, Kanagawa 210-9501, Japan; (G.T.); (T.F.); (Y.D.); (M.K.)
- Correspondence: ; Tel.: +81-44-270-6579; Fax: +81-44-270-6579
| | - Nobumichi Ohoka
- Division of Molecular Target and Gene Therapy Products, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki, Kanagawa 210-9501, Japan; (N.O.); (M.N.)
| | - Genichiro Tsuji
- Division of Organic Chemistry, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki, Kanagawa 210-9501, Japan; (G.T.); (T.F.); (Y.D.); (M.K.)
| | - Takuma Fujisato
- Division of Organic Chemistry, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki, Kanagawa 210-9501, Japan; (G.T.); (T.F.); (Y.D.); (M.K.)
- School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan;
| | - Hideshi Inoue
- School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan;
| | - Yosuke Demizu
- Division of Organic Chemistry, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki, Kanagawa 210-9501, Japan; (G.T.); (T.F.); (Y.D.); (M.K.)
| | - Mikihiko Naito
- Division of Molecular Target and Gene Therapy Products, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki, Kanagawa 210-9501, Japan; (N.O.); (M.N.)
| | - Masaaki Kurihara
- Division of Organic Chemistry, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki, Kanagawa 210-9501, Japan; (G.T.); (T.F.); (Y.D.); (M.K.)
| |
Collapse
|
10
|
Ohoka N, Tsuji G, Shoda T, Fujisato T, Kurihara M, Demizu Y, Naito M. Development of Small Molecule Chimeras That Recruit AhR E3 Ligase to Target Proteins. ACS Chem Biol 2019; 14:2822-2832. [PMID: 31580635 DOI: 10.1021/acschembio.9b00704] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Targeted protein degradation using chimeric small molecules such as proteolysis-targeting chimeras (PROTACs) and specific and nongenetic inhibitors of apoptosis protein [IAP]-dependent protein erasers (SNIPERs) is an emerging modality in drug discovery. Here, we expand the repertoire of E3 ligases capable of ubiquitylating target proteins using this system. By incorporating β-naphthoflavone (β-NF) as a ligand, we developed a novel class of chimeric molecules that recruit the arylhydrocarbon receptor (AhR) E3 ligase complex. β-NF-ATRA, a chimeric degrader directed against cellular retinoic acid binding proteins (CRABPs), induced the AhR-dependent degradation of CRABP-1 and CRABP-2 via the ubiquitin-proteasome pathway. A similar compound ITE-ATRA, in which an alternative AhR ligand was used, also degraded CRABP proteins. Finally, we developed a chimeric compound β-NF-JQ1 that is directed against bromodomain-containing (BRD) proteins using β-NF as an AhR ligand. β-NF-JQ1 induced the interaction of AhR and BRD proteins and displayed effective anticancer activity that correlated with protein knockdown activity. These results demonstrate a novel class of chimeric degrader molecules based on the ability to bring a target protein and an AhR E3 ligase into close proximity.
Collapse
|
11
|
Ohoka N, Tsuji G, Shoda T, Fujisato T, Kurihara M, Demizu Y, Naito M. Abstract C125: Development of small molecule chimeras that recruit aryl-hydrocarbon receptor (AhR) E3 ligase to induce degradation of target proteins. Mol Cancer Ther 2019. [DOI: 10.1158/1535-7163.targ-19-c125] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Targeted protein degradation using chimeric small molecules is an emerging modality in drug discovery. These compounds termed proteolysis-targeting chimeras (PROTACs) and specific and nongenetic inhibitors of apoptosis protein [IAP]-dependent protein erasers (SNIPERs) contain two ligands connected with a linker: one ligand is specific for an E3 ubiquitin ligase, and the other ligand is specific for the target protein, and cross-link the E3 ligase and the target protein within the cell, thereby inducing the poly-ubiquitylation and proteasomal degradation of the target. Currently only a limited number of the E3 ligases, including IAPs, VHL and CRBN, can be recruited to the target proteins by this technology. Here, we expand the repertoire of E3 ligases capable of ubiquitylating target proteins using this system. By incorporating β-naphthoflavone (β-NF) as a ligand for E3 ubiquitin ligase, we developed a novel class of chimeric molecules that recruit the aryl-hydrocarbon receptor (AhR) E3 ligase complex. β-NF-ATRA, a chimeric degrader directed against cellular retinoic acid binding proteins (CRABPs), induced the AhR-dependent degradation of CRABP-1 and CRABP-2 via the ubiquitin-proteasome pathway. A similar compound ITE-ATRA, in which an alternative AhR ligand was used, also degraded CRABP proteins. We also developed a chimeric compound b-NF-JQ1 that is directed against bromodomain-containing (BRD) proteins using b-NF as an AhR ligand. β-NF-JQ1 induced the interaction of AhR and BRD proteins and displayed effective anticancer activity that correlated with protein knockdown activity. These results demonstrate a novel class of chimeric degrader molecules based on the ability to recruit AhR E3 ligase to the target proteins.
Citation Format: Nobumichi Ohoka, Genichiro Tsuji, Takuji Shoda, Takuma Fujisato, Masaaki Kurihara, Yosuke Demizu, Mikihiko Naito. Development of small molecule chimeras that recruit aryl-hydrocarbon receptor (AhR) E3 ligase to induce degradation of target proteins [abstract]. In: Proceedings of the AACR-NCI-EORTC International Conference on Molecular Targets and Cancer Therapeutics; 2019 Oct 26-30; Boston, MA. Philadelphia (PA): AACR; Mol Cancer Ther 2019;18(12 Suppl):Abstract nr C125. doi:10.1158/1535-7163.TARG-19-C125
Collapse
|
12
|
Tsuiji M, Shiohara K, Takei Y, Shinohara Y, Nemoto S, Yamaguchi S, Kanto M, Itoh S, Oku T, Miyashita M, Seyama Y, Kurihara M, Tsuji T. Selective Cytotoxicity of Staphylococcal α-Hemolysin (α-Toxin) against Human Leukocyte Populations. Biol Pharm Bull 2019; 42:982-988. [PMID: 31155595 DOI: 10.1248/bpb.b18-01024] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Staphylococcus aureus produces a variety of exoproteins that interfere with host immune systems. We attempted to purify cytotoxins against human leukocytic cells from the culture supernatant of S. aureus by a combination of ammonium sulfate precipitation, ion-exchange chromatography on a CM-cellulose column and HPLC on a Mono S 5/50 column. A major protein possessing cytotoxicity to HL60 human promyelocytic leukemia cells was purified, and the protein was identified as α-hemolysin (Hla, α-toxin) based on its molecular weight (34 kDa) and N-terminal amino acid sequence. Flow cytometric analysis suggested differential cytotoxicity of Hla against different human peripheral blood leukocyte populations. After cell fractionation with density-gradient centrifugation, we found that peripheral blood mononuclear cells (PBMCs) were more susceptible to Hla than polymorphonuclear leukocytes. Moreover, cell surface marker analysis suggested that Hla exhibited slightly higher cytotoxicity against CD14-positive PBMCs (mainly monocytes) than CD3- or CD19-positive cells (T or B lymphocytes). From these results, we conclude that human leukocytes have different susceptibility to Hla depending on their cell lineages, and thereby the toxin may modulate the host immune response.
Collapse
Affiliation(s)
- Makoto Tsuiji
- Department of Microbiology, Hoshi University School of Pharmacy and Pharmaceutical Sciences
| | - Kazuyuki Shiohara
- Department of Microbiology, Hoshi University School of Pharmacy and Pharmaceutical Sciences
| | - Yoshinori Takei
- Department of Microbiology, Hoshi University School of Pharmacy and Pharmaceutical Sciences
| | - Yoshinori Shinohara
- Department of Microbiology, Hoshi University School of Pharmacy and Pharmaceutical Sciences
| | - Shigeyoshi Nemoto
- Department of Microbiology, Hoshi University School of Pharmacy and Pharmaceutical Sciences
| | - Satoshi Yamaguchi
- Department of Microbiology, Hoshi University School of Pharmacy and Pharmaceutical Sciences
| | - Masanori Kanto
- Department of Microbiology, Hoshi University School of Pharmacy and Pharmaceutical Sciences
| | - Saotomo Itoh
- Department of Microbiology, Hoshi University School of Pharmacy and Pharmaceutical Sciences
| | - Teruaki Oku
- Department of Microbiology, Hoshi University School of Pharmacy and Pharmaceutical Sciences
| | - Masahiro Miyashita
- Department of Clinical Chemistry, Hoshi University School of Pharmacy and Pharmaceutical Sciences
| | - Yoshiyuki Seyama
- Department of Clinical Chemistry, Hoshi University School of Pharmacy and Pharmaceutical Sciences
| | | | - Tsutomu Tsuji
- Department of Microbiology, Hoshi University School of Pharmacy and Pharmaceutical Sciences
| |
Collapse
|
13
|
Kamiya T, Hira D, Hoshino N, Kurihara M, Nakagawa M, Sasaki M, Terada T. MON-PO405: Prolonging Factors of the Duration of Parenteral Nutrition in Patients Treated with Hematopoietic Stem Cell Transplantation. Clin Nutr 2019. [DOI: 10.1016/s0261-5614(19)32238-1] [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]
|
14
|
Tsuji G, Hattori T, Kato M, Hakamata W, Inoue H, Naito M, Kurihara M, Demizu Y, Shoda T. Design and synthesis of cell-permeable fluorescent nitrilotriacetic acid derivatives. Bioorg Med Chem 2018; 26:5494-5498. [PMID: 30293794 DOI: 10.1016/j.bmc.2018.09.028] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 09/20/2018] [Accepted: 09/22/2018] [Indexed: 11/26/2022]
Abstract
Fluorescence labeling of the target molecules using a small molecule-based probe is superior than a method using genetically expressed green fluorescence protein (GFP) in terms of convenience in its preparation and functionalization. Fluorophore-nitrilotriacetic acid (NTA) conjugates with several ester protecting groups were synthesized and evaluated for their cell membrane permeability by fluorescence microscopy analysis. One of the derivatives, acetoxymethyl (AM)-protected NTA conjugate is hydrolyzed, resulting in intracellular accumulation, thus providing localized fluorescence intensity in cells. This modification is expected as an effective method for converting a non-cell membrane permeable NTA-BODIPY conjugates to a cell membrane permeable derivatives.
Collapse
Affiliation(s)
- Genichiro Tsuji
- National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki-shi, Kanagawa 210-9501, Japan.
| | - Takayuki Hattori
- National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki-shi, Kanagawa 210-9501, Japan
| | - Masashi Kato
- National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki-shi, Kanagawa 210-9501, Japan; School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Wataru Hakamata
- Department of Chemistry and Life Science, College of Bioresource Sciences, Nihon University, 1866 Kameino, Fujisawa, Kanagawa 252-0880, Japan
| | - Hideshi Inoue
- School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Mikihiko Naito
- National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki-shi, Kanagawa 210-9501, Japan
| | - Masaaki Kurihara
- National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki-shi, Kanagawa 210-9501, Japan
| | - Yosuke Demizu
- National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki-shi, Kanagawa 210-9501, Japan
| | - Takuji Shoda
- National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki-shi, Kanagawa 210-9501, Japan.
| |
Collapse
|
15
|
Mizumoto T, Hiyama T, Oka S, Yorita N, Kuroki K, Kurihara M, Yoshifuku Y, Sanomura Y, Urabe Y, Arihiro K, Tanaka S, Chayama K. Diagnosis of superficial esophageal squamous cell carcinoma invasion depth before endoscopic submucosal dissection. Dis Esophagus 2018; 31:4757113. [PMID: 29267962 DOI: 10.1093/dote/dox142] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Accepted: 11/13/2017] [Indexed: 12/11/2022]
Abstract
Endoscopic submucosal dissection (ESD) is a widely accepted procedure for superficial esophageal squamous cell carcinoma (SESCC) limited to the epithelium or lamina propria mucosae (EP/LPM). We aimed to compare the efficacy of endoscopic ultrasonography (EUS) and magnifying endoscopy with narrow band imaging (ME-NBI) for predicting the tumor invasion depth in patients with SESCC. Specifically, we evaluated the ability of these examinations to distinguish EP/LPM from SESCC invading the muscularis mucosae or superficial submucosa (MM/SM1) and more deeply invasive lesions before ESD.We retrospectively analyzed a database of all patients with SESCC who had undergone both EUS and ME-NBI for pretreatment staging and ESD resection at Hiroshima University Hospital between September 2007 and June 2015. The clinicopathologic characteristics of SESCCs were classified according to the Japanese Classification of Esophageal Cancer.A total of 174 lesions in 174 patients were included: 124 (71%) EP/LPMs, 35 (20%) MM/SM1s, and 15 (9%) SESCCs invading the mid submucosae (SM2). The sensitivity of EUS and of ME-NBI in distinguishing EP/LPM from MM/SM1 and more invasive lesions was 72% and 83%, respectively. The accuracy of EUS and ME-NBI in distinguishing EP/LPM from MM/SM1 and more invasive lesions was 70% and 82%, respectively. Sensitivity and accuracy of ME-NBI in distinguishing EP/LPM from MM/SM1 and more deeply invasive SESCCs is significantly higher than those of EUS (P = 0.048 and P = 0.017, respectively).ME-NBI may be more useful than EUS for the determination of SESCC invasion depth before ESD.
Collapse
Affiliation(s)
- T Mizumoto
- Departments of Gastroenterology and Metabolism, Hiroshima University Hospital, Hiroshima, Japan
| | - T Hiyama
- Health Service Center, Hiroshima University, Higashihiroshima, Japan
| | - S Oka
- Departments of Gastroenterology and Metabolism, Hiroshima University Hospital, Hiroshima, Japan
| | - N Yorita
- Departments of Gastroenterology and Metabolism, Hiroshima University Hospital, Hiroshima, Japan
| | - K Kuroki
- Departments of Gastroenterology and Metabolism, Hiroshima University Hospital, Hiroshima, Japan
| | - M Kurihara
- Departments of Gastroenterology and Metabolism, Hiroshima University Hospital, Hiroshima, Japan
| | - Y Yoshifuku
- Departments of Gastroenterology and Metabolism, Hiroshima University Hospital, Hiroshima, Japan
| | - Y Sanomura
- Department of Endoscopy, Medical Center for Translational and Clinical Research, Hiroshima, Japan
| | - Y Urabe
- Department of Regeneration and Medicine, Medical Center for Translational and Clinical Research, Hiroshima, Japan
| | - K Arihiro
- Department of Anatomical Pathology, Hiroshima University Hospital, Hiroshima, Japan
| | - S Tanaka
- Department of Endoscopy, Medical Center for Translational and Clinical Research, Hiroshima, Japan
| | - K Chayama
- Departments of Gastroenterology and Metabolism, Hiroshima University Hospital, Hiroshima, Japan
| |
Collapse
|
16
|
Mizumoto T, Hiyama T, Oka S, Yorita N, Kuroki K, Kurihara M, Yoshifuku Y, Sanomura Y, Urabe Y, Murakami Y, Arihiro K, Tanaka S, Chayama K. Curative Criteria After Endoscopic Resection for Superficial Esophageal Squamous Cell Carcinomas. Dig Dis Sci 2018; 63:1605-1612. [PMID: 29564670 DOI: 10.1007/s10620-018-5029-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/25/2017] [Accepted: 03/15/2018] [Indexed: 01/11/2023]
Abstract
BACKGROUND According to the Japanese Esophageal Society (JES) guidelines, risk factors for lymph node (LN) metastasis in the muscularis mucosa (MM)/submucosa to a depth of up to 200 μm (SM1) in cases of esophageal squamous cell carcinomas (ESCCs) include the presence of lymphatic invasion (ly), venous invasion (v), infiltration pattern (INF)c, and SM1. The long-term prognoses of these patients are unclear, and there are very few reports on the validation of the curative criteria for MM/SM1 ESCCs. AIMS To examine the long-term prognoses of these patients and the risk factors for LN metastasis of MM/SM1 ESCCs after endoscopic resection (ER). METHODS This study included patients with MM/SM1 ESCCs who underwent ER at Hiroshima University Hospital from December 1990 to November 2016. We evaluated the clinicopathological characteristics of 98 patients and overall survival, disease-specific survival, recurrence-free survival, and recurrence rates in the e-curative and non-e-curative groups. RESULTS The mean observation period was 75 months. There was no significant difference in disease-specific survival rate between the e-curative and non-e-curative groups (100 vs. 98%). There was no significant difference in disease-specific survival rates between the groups (100 vs. 98%). In contrast, the LN recurrence-free survival rate in patients with INFa, ly(-), and v(-) was significantly higher than that in patients with INFb/c, ly(+), or v(+) (100 and 87%, P < 0.05). CONCLUSION Contrary to the JES guidelines, our findings suggest that new criteria (MM/SM1, INFa, negative vertical margin (VM0), ly[-], and v[-]) may be associated with curative ER without additional treatment.
Collapse
Affiliation(s)
- T Mizumoto
- Department of Gastroenterology and Metabolism, Hiroshima University Hospital, Hiroshima, Japan
| | - T Hiyama
- Health Service Center, Hiroshima University, 1-7-1 Kagamiyama, Higashihiroshima, 739-8514, Japan.
| | - S Oka
- Department of Gastroenterology and Metabolism, Hiroshima University Hospital, Hiroshima, Japan
| | - N Yorita
- Department of Gastroenterology and Metabolism, Hiroshima University Hospital, Hiroshima, Japan
| | - K Kuroki
- Department of Gastroenterology and Metabolism, Hiroshima University Hospital, Hiroshima, Japan
| | - M Kurihara
- Department of Gastroenterology and Metabolism, Hiroshima University Hospital, Hiroshima, Japan
| | - Y Yoshifuku
- Department of Gastroenterology and Metabolism, Hiroshima University Hospital, Hiroshima, Japan
| | - Y Sanomura
- Department of Endoscopy, Hiroshima University Hospital, Hiroshima, Japan
| | - Y Urabe
- Department of Regeneration and Medicine, Medical Center for Translational and Clinical Research, Hiroshima University Hospital, Hiroshima, Japan
| | - Y Murakami
- Department of Radiation Oncology, Hiroshima University Graduate School of Biomedical Sciences, Hiroshima, Japan
| | - K Arihiro
- Department of Anatomical Pathology, Hiroshima University Hospital, Hiroshima, Japan
| | - S Tanaka
- Department of Endoscopy, Hiroshima University Hospital, Hiroshima, Japan
| | - K Chayama
- Department of Gastroenterology and Metabolism, Hiroshima University Hospital, Hiroshima, Japan
| |
Collapse
|
17
|
Mizumoto T, Hiyama T, Oka S, Yorita N, Kuroki K, Kurihara M, Yoshifuku Y, Sanomura Y, Urabe Y, Arihiro K, Tanaka S, Chayama K. Erratum: Diagnosis of superficial esophageal squamous cell carcinoma invasion depth before endoscopic submucosal dissection. Dis Esophagus 2018; 31:4975514. [PMID: 29912362 DOI: 10.1093/dote/doy036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
18
|
Eto R, Misawa T, Noguchi-Yachide T, Ohoka N, Kurihara M, Naito M, Tanaka M, Demizu Y. Design and synthesis of estrogen receptor ligands with a 4-heterocycle-4-phenylheptane skeleton. Bioorg Med Chem 2018. [PMID: 29525335 DOI: 10.1016/j.bmc.2018.02.010] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
The estrogen receptor (ER), a member of the nuclear receptor (NR) family, is involved in the regulation of physiological effects such as reproduction and bone homeostasis. Approximately 70% of human breast cancers are hormone-dependent and ERα-positive, and, thus, ER antagonists are broadly used in breast cancer therapy. We herein designed and synthesized a set of ER antagonists with a 4-heterocycle-4-phenylheptane skeleton.
Collapse
Affiliation(s)
- Ryo Eto
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Takashi Misawa
- Division of Organic Chemistry, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki-shi, Kanagawa 210-9501, Japan.
| | - Tomomi Noguchi-Yachide
- Institute of Molecular & Cellular Biology, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
| | - Nobumichi Ohoka
- Division of Molecular Target and Gene Therapy Products, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki-shi, Kanagawa 210-9501, Japan
| | - Masaaki Kurihara
- Department of Pharmaceutical Sciences, International University of Health and Welfare, 2600-1 Kitakanemaru, Ohtawara City, Tochigi 324-8501, Japan
| | - Mikihiko Naito
- Division of Molecular Target and Gene Therapy Products, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki-shi, Kanagawa 210-9501, Japan
| | - Masakazu Tanaka
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Yosuke Demizu
- Division of Organic Chemistry, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki-shi, Kanagawa 210-9501, Japan.
| |
Collapse
|
19
|
Eto R, Oba M, Ueda A, Uku T, Doi M, Matsuo Y, Tanaka T, Demizu Y, Kurihara M, Tanaka M. Frontispiece: Diastereomeric Right- and Left-Handed Helical Structures with Fourteen ( R
)-Chiral Centers. Chemistry 2017. [DOI: 10.1002/chem.201787263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ryo Eto
- Graduate School of Biomedical Sciences; Nagasaki University; Nagasaki 852-8521 Japan
| | - Makoto Oba
- Graduate School of Biomedical Sciences; Nagasaki University; Nagasaki 852-8521 Japan
| | - Atsushi Ueda
- Graduate School of Biomedical Sciences; Nagasaki University; Nagasaki 852-8521 Japan
| | - Tsubasa Uku
- Graduate School of Biomedical Sciences; Nagasaki University; Nagasaki 852-8521 Japan
| | - Mitsunobu Doi
- Osaka University of Pharmaceutical Sciences; Osaka 569-1094 Japan
| | - Yosuke Matsuo
- Graduate School of Biomedical Sciences; Nagasaki University; Nagasaki 852-8521 Japan
| | - Takashi Tanaka
- Graduate School of Biomedical Sciences; Nagasaki University; Nagasaki 852-8521 Japan
| | - Yosuke Demizu
- National Institute of Health Sciences; Tokyo 158-8501 Japan
| | - Masaaki Kurihara
- Graduate School of Pharmaceutical Sciences; International University of Health and Welfare; Ohtawara 324-8501 Japan
| | - Masakazu Tanaka
- Graduate School of Biomedical Sciences; Nagasaki University; Nagasaki 852-8521 Japan
| |
Collapse
|
20
|
Eto R, Oba M, Ueda A, Uku T, Doi M, Matsuo Y, Tanaka T, Demizu Y, Kurihara M, Tanaka M. Diastereomeric Right- and Left-Handed Helical Structures with Fourteen (R)-Chiral Centers. Chemistry 2017; 23:18120-18124. [PMID: 29134704 DOI: 10.1002/chem.201705306] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [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: 11/09/2017] [Indexed: 12/31/2022]
Abstract
The relationship between chiral centers and the helical-screw control of their peptides has already been reported, but it has yet to be elucidated in detail. A chiral four-membered ring α,α-disubstituted α-amino acid with a (R,R)-butane-2,3-diol acetal moiety at the γ-position, but no α-chiral carbon, was synthesized. X-ray crystallographic analysis unambiguously revealed that its homo-chiral heptapeptide formed right-handed (P) and left-handed (M) 310 -helical structures at a ratio of 1:1. They appeared to be enantiomeric at the peptide backbone, but diastereomeric with fourteen (R)-configuration chiral centers. Conformational analyses of homopeptides in solution also indicated that diastereomeric (P) and (M) helices existed at approximately equal amounts, with a slight preference toward right-handedness, and they quickly interchanged at room temperature. The circumstances of chiral centers are important for the control of their helical-screw direction.
Collapse
Affiliation(s)
- Ryo Eto
- Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, 852-8521, Japan
| | - Makoto Oba
- Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, 852-8521, Japan
| | - Atsushi Ueda
- Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, 852-8521, Japan
| | - Tsubasa Uku
- Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, 852-8521, Japan
| | - Mitsunobu Doi
- Osaka University of Pharmaceutical Sciences, Osaka, 569-1094, Japan
| | - Yosuke Matsuo
- Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, 852-8521, Japan
| | - Takashi Tanaka
- Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, 852-8521, Japan
| | - Yosuke Demizu
- National Institute of Health Sciences, Tokyo, 158-8501, Japan
| | - Masaaki Kurihara
- Graduate School of Pharmaceutical Sciences, International University of Health and Welfare, Ohtawara, 324-8501, Japan
| | - Masakazu Tanaka
- Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, 852-8521, Japan
| |
Collapse
|
21
|
Fukuhara T, Oizumi S, Sugawara S, Minato K, Harada T, Inoue A, Fujita Y, Watanabe S, Ito K, Gemma A, Demura Y, Harada M, Isobe H, Kinoshita I, Morita S, Kobayashi K, Hagiwara K, Kurihara M, Nukiwa T. P2.03-010 Updated Survival Outcomes of NEJ005/TCOG0902, a Randomized PII of Gefitinib and Chemotherapy in EGFR-Mutant NSCLC. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1261] [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]
|
22
|
Ohoka N, Misawa T, Kurihara M, Demizu Y, Naito M. Development of a peptide-based inducer of protein degradation targeting NOTCH1. Bioorg Med Chem Lett 2017; 27:4985-4988. [PMID: 29050782 DOI: 10.1016/j.bmcl.2017.10.011] [Citation(s) in RCA: 19] [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: 08/24/2017] [Revised: 10/06/2017] [Accepted: 10/07/2017] [Indexed: 12/30/2022]
Abstract
We previously developed a protein knockdown system by small-molecule hybrid compounds named SNIPERs (Specific and Nongenetic IAP-dependent Protein Erasers). Here we report a peptide-based protein knockdown system for inducing degradation of a transcriptional factor NOTCH1. The molecules designed were composed of two biologically active scaffolds: a peptide that binds to the surface of the target protein NOTCH1 and a small-molecule MV1 that binds to the E3 ubiquitin ligase inhibitor of apoptosis protein (IAP), which are expected to cross-link these proteins in cells. Hybrid molecules specifically induced the degradation of the NOTCH1 protein by the proteasome. This system could be a useful method to develop various degradation inducers against a large number of proteins to which small-molecule ligands have not been found.
Collapse
Affiliation(s)
- Nobumichi Ohoka
- Division of Molecular Target and Gene Therapy Product, National Institute of Health Sciences, 1-18-1, Kamiyoga, Setagaya, Tokyo 158-8501, Japan
| | - Takashi Misawa
- Division of Organic Chemistry, National Institute of Health Sciences, 1-18-1, Kamiyoga, Setagaya, Tokyo 158-8501, Japan
| | - Masaaki Kurihara
- Division of Organic Chemistry, National Institute of Health Sciences, 1-18-1, Kamiyoga, Setagaya, Tokyo 158-8501, Japan
| | - Yosuke Demizu
- Division of Organic Chemistry, National Institute of Health Sciences, 1-18-1, Kamiyoga, Setagaya, Tokyo 158-8501, Japan.
| | - Mikihiko Naito
- Division of Molecular Target and Gene Therapy Product, National Institute of Health Sciences, 1-18-1, Kamiyoga, Setagaya, Tokyo 158-8501, Japan.
| |
Collapse
|
23
|
Kurihara M, Sugiyama Y, Tanaka M, Ishiura H, Kubota A, Hayashi T, Shimizu J, Tsuji S. Diagnostic role of aerobic exercise tests on cycle ergometry in clinical settings. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1969] [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]
|
24
|
Koba Y, Ueda A, Oba M, Doi M, Demizu Y, Kurihara M, Tanaka M. Helical l
-Leu-Based Peptides Having Chiral Five-Membered Carbocyclic Ring Amino Acids with an Ethylene Acetal Moiety. ChemistrySelect 2017. [DOI: 10.1002/slct.201700832] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yurie Koba
- Graduate School of Biomedical Sciences; Nagasaki University, 1-14 Bunkyo-machi; Nagasaki 852-8521 Japan
| | - Atsushi Ueda
- Graduate School of Biomedical Sciences; Nagasaki University, 1-14 Bunkyo-machi; Nagasaki 852-8521 Japan
| | - Makoto Oba
- Graduate School of Biomedical Sciences; Nagasaki University, 1-14 Bunkyo-machi; Nagasaki 852-8521 Japan
| | - Mitsunobu Doi
- Osaka University of Pharmaceutical Sciences; Osaka 569-1094 Japan
| | - Yosuke Demizu
- Division of Organic Chemistry; National Institute of Health Sciences; Tokyo 158-8501 Japan
| | - Masaaki Kurihara
- Graduate School of Pharmaceutical Sciences; International University of Health and Welfare; Ohtawara 324-8501 Japan
| | - Masakazu Tanaka
- Graduate School of Biomedical Sciences; Nagasaki University, 1-14 Bunkyo-machi; Nagasaki 852-8521 Japan
| |
Collapse
|
25
|
Yamaguchi H, Sato Y, Ishigami H, Oozawa H, Kurihara M, Yatomi Y, Kitayama J. Peritoneal lavage CEA mRNA levels predict conversion gastrectomy outcomes after induction chemotherapy in gastric cancer patients with peritoneal metastasis. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx369.040] [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: 11/13/2022] Open
|
26
|
Misawa T, Imamura M, Ozawa Y, Haishima K, Kurihara M, Kikuchi Y, Demizu Y. Development of helix-stabilized antimicrobial peptides composed of lysine and hydrophobic α,α-disubstituted α-amino acid residues. Bioorg Med Chem Lett 2017; 27:3950-3953. [PMID: 28789896 DOI: 10.1016/j.bmcl.2017.07.074] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [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: 06/26/2017] [Revised: 07/25/2017] [Accepted: 07/28/2017] [Indexed: 01/14/2023]
Abstract
Lysine-based amphipathic nonapeptides, including homochiral peptides [Ac-(l-Lys-l-Lys-Xaa)3-NH2 (Xaa=Gly, Ala, Aib, Ac5c, or Ac6c) and Ac-(d-Lys-d-Lys-Aib)3-NH2], a heterochiral peptide [Ac-(l-Lys-d-Lys-Aib)3-NH2], and a racemic mixture of diastereomeric peptides [Ac-(rac-Lys-rac-Lys-Aib)3-NH2] were designed and synthesized to investigate the relationship between their preferred secondary structures and their antimicrobial activity. Peptide 5, [Ac-(l-Lys-l-Lys-Ac6c)3-NH2] formed a stable α-helical structure and exhibited strong activity against Gram-negative bacteria (Escherichia coli and Pseudomonas aeruginosa).
Collapse
Affiliation(s)
- Takashi Misawa
- National Institute of Health Sciences, 1-18-1, Kamiyoga, Setagaya, Tokyo 158-8501, Japan
| | - Mitsuyoshi Imamura
- National Institute of Health Sciences, 1-18-1, Kamiyoga, Setagaya, Tokyo 158-8501, Japan
| | - Yuto Ozawa
- National Institute of Health Sciences, 1-18-1, Kamiyoga, Setagaya, Tokyo 158-8501, Japan
| | - Kazuchika Haishima
- National Institute of Health Sciences, 1-18-1, Kamiyoga, Setagaya, Tokyo 158-8501, Japan
| | - Masaaki Kurihara
- National Institute of Health Sciences, 1-18-1, Kamiyoga, Setagaya, Tokyo 158-8501, Japan
| | - Yutaka Kikuchi
- National Institute of Health Sciences, 1-18-1, Kamiyoga, Setagaya, Tokyo 158-8501, Japan.
| | - Yosuke Demizu
- National Institute of Health Sciences, 1-18-1, Kamiyoga, Setagaya, Tokyo 158-8501, Japan.
| |
Collapse
|
27
|
Sugiyama T, Hasegawa G, Niikura C, Kuwata K, Imamura Y, Demizu Y, Kurihara M, Kittaka A. PNA monomers fully compatible with standard Fmoc-based solid-phase synthesis of pseudocomplementary PNA. Bioorg Med Chem Lett 2017; 27:3337-3341. [PMID: 28610975 DOI: 10.1016/j.bmcl.2017.06.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Revised: 05/31/2017] [Accepted: 06/02/2017] [Indexed: 11/18/2022]
Abstract
Here we report the synthesis of new PNA monomers for pseudocomplementary PNA (pcPNA) that are fully compatible with standard Fmoc chemistry. The thiocarbonyl group of the 2-thiouracil (sU) monomer was protected with the 4-methoxy-2-methybenzyl group (MMPM), while the exocyclic amino groups of diaminopurine (D) were protected with Boc groups. The newly synthesized monomers were incorporated into a 10-mer PNA oligomer using standard Fmoc chemistry for solid-phase synthesis. Oligomerization proceeded smoothly and the HPLC and MALDI-TOF MS analyses indicated that there was no remaining MMPM on the sU nucleobase. The new PNA monomers reported here would facilitate a wide range of applications, such as antigene PNAs and DNA nanotechnologies.
Collapse
Affiliation(s)
- Toru Sugiyama
- Faculty of Pharmaceutical Sciences, Teikyo University, Itabashi-ku, Tokyo 173-8605, Japan.
| | - Genki Hasegawa
- Faculty of Pharmaceutical Sciences, Teikyo University, Itabashi-ku, Tokyo 173-8605, Japan
| | - Chie Niikura
- Faculty of Pharmaceutical Sciences, Teikyo University, Itabashi-ku, Tokyo 173-8605, Japan
| | - Keiko Kuwata
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Chikusa-ku, Nagoya 464-8601, Japan
| | - Yasutada Imamura
- Faculty of Engineering, Kogakuin University, 2665-1 Nakano, Hachioji, Tokyo 192-0015, Japan
| | - Yosuke Demizu
- Division of Organic Chemistry, National Institute of Health Sciences, Ministry of Health and Welfare, Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan
| | - Masaaki Kurihara
- School of Pharmacy, International University of Health and Welfare, 2600-1, Kitakanemaru, Ohtawara, Tochigi 324-8501, Japan
| | - Atsushi Kittaka
- Faculty of Pharmaceutical Sciences, Teikyo University, Itabashi-ku, Tokyo 173-8605, Japan.
| |
Collapse
|
28
|
Okitsu K, Hattori T, Misawa T, Shoda T, Kurihara M, Naito M, Demizu Y. Development of a Small Hybrid Molecule That Mediates Degradation of His-Tag Fused Proteins. J Med Chem 2017; 61:576-582. [DOI: 10.1021/acs.jmedchem.7b00413] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Koyo Okitsu
- Division
of Organic Chemistry, National Institute of Health Sciences, 1-18-1,
Kamiyoga, Setagaya, Tokyo 158-8501, Japan
- Graduate
School of Bioscience and Biotechnology, Tokyo Institute of Technology, Yokohama 226-8501, Japan
| | - Takayuki Hattori
- Division
of Molecular Target and Gene Therapy Products, National Institute of Health Sciences, 1-18-1, Kamiyoga, Setagaya, Tokyo 158-8501, Japan
| | - Takashi Misawa
- Division
of Organic Chemistry, National Institute of Health Sciences, 1-18-1,
Kamiyoga, Setagaya, Tokyo 158-8501, Japan
| | - Takuji Shoda
- Division
of Organic Chemistry, National Institute of Health Sciences, 1-18-1,
Kamiyoga, Setagaya, Tokyo 158-8501, Japan
| | - Masaaki Kurihara
- Division
of Organic Chemistry, National Institute of Health Sciences, 1-18-1,
Kamiyoga, Setagaya, Tokyo 158-8501, Japan
| | - Mikihiko Naito
- Division
of Molecular Target and Gene Therapy Products, National Institute of Health Sciences, 1-18-1, Kamiyoga, Setagaya, Tokyo 158-8501, Japan
| | - Yosuke Demizu
- Division
of Organic Chemistry, National Institute of Health Sciences, 1-18-1,
Kamiyoga, Setagaya, Tokyo 158-8501, Japan
| |
Collapse
|
29
|
Yamashita H, Misawa T, Oba M, Tanaka M, Naito M, Kurihara M, Demizu Y. Development of helix-stabilized cell-penetrating peptides containing cationic α,α-disubstituted amino acids as helical promoters. Bioorg Med Chem 2017; 25:1846-1851. [DOI: 10.1016/j.bmc.2017.01.044] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Revised: 01/24/2017] [Accepted: 01/28/2017] [Indexed: 11/29/2022]
|
30
|
Yagyuu T, Kawakami M, Ueyama Y, Imada M, Kurihara M, Matsusue Y, Yamamoto K, Kirita T. Risk of postextraction bleeding after receiving novel oral anticoagulants. Int J Oral Maxillofac Surg 2017. [DOI: 10.1016/j.ijom.2017.02.1194] [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: 11/17/2022]
|
31
|
Koba Y, Hirata Y, Ueda A, Oba M, Doi M, Demizu Y, Kurihara M, Tanaka M. Synthesis of chiral five-membered carbocyclic ring amino acids with an acetal moiety and helical conformations of its homo-chiral homopeptides. Biopolymers 2017; 106:555-62. [PMID: 26566886 DOI: 10.1002/bip.22769] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [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: 08/26/2015] [Accepted: 11/02/2015] [Indexed: 01/11/2023]
Abstract
Chiral five-membered carbocyclic ring amino acids bearing various diol acetal moieties were synthesized starting from l-malic acid, and homo-chiral homopeptides composed of cyclic amino acid (S)-Ac5 c(3EG) bearing an ethylene glycol acetal, up to an octapeptide, were prepared. A conformational analysis revealed that (S)-Ac5 c(3EG) homopeptides formed helical structures. (S)-Ac5 c(3EG) homopeptides, up to hexapeptides, formed helical structures without controlling the helical screw direction, while (S)-Ac5 c(3EG) hepta- and octapeptides formed helical structures with a preference for the left-handed (M) helical-screw direction. © 2015 Wiley Periodicals, Inc. Biopolymers (Pept Sci) 106: 555-562, 2016.
Collapse
Affiliation(s)
- Yurie Koba
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-Machi, Nagasaki, 852-8521, Japan
| | - Yoko Hirata
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-Machi, Nagasaki, 852-8521, Japan
| | - Atsushi Ueda
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-Machi, Nagasaki, 852-8521, Japan
| | - Makoto Oba
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-Machi, Nagasaki, 852-8521, Japan
| | - Mitsunobu Doi
- Osaka University of Pharmaceutical Sciences, Osaka, 569-1094, Japan
| | - Yosuke Demizu
- Division of Organic Chemistry, National Institute of Health Sciences, Tokyo, 158-8501, Japan
| | - Masaaki Kurihara
- Division of Organic Chemistry, National Institute of Health Sciences, Tokyo, 158-8501, Japan
| | - Masakazu Tanaka
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-Machi, Nagasaki, 852-8521, Japan
| |
Collapse
|
32
|
Sugiyama T, Kuwata K, Imamura Y, Demizu Y, Kurihara M, Takano M, Kittaka A. Peptide Nucleic Acid with a Lysine Side Chain at the β-Position: Synthesis and Application for DNA Cleavage. Chem Pharm Bull (Tokyo) 2017; 64:817-23. [PMID: 27373637 DOI: 10.1248/cpb.c16-00191] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
This paper reports the synthesis of new β-Lys peptide nucleic acid (PNA) monomers and their incorporation into a 10-residue PNA sequence. PNA containing β-Lys PNA units formed a stable hybrid duplex with DNA. However, incorporation of β-Lys PNA units caused destabilization of PNA-DNA duplexes to some extent. Electrostatic attractions between β-PNA and DNA could reduce this destabilization effect. Subsequently, bipyridine-conjugated β-Lys PNA was prepared and exhibited sequence selective cleavage of DNA. Based on the structures of the cleavage products and molecular modeling, we reasoned that bipyridine moiety locates within the minor groove of the PNA-DNA duplexes. The lysine side chain of β-PNA is a versatile handle for attaching various functional molecules.
Collapse
Affiliation(s)
- Toru Sugiyama
- Faculty of Pharmaceutical Sciences, Teikyo University
| | | | | | | | | | | | | |
Collapse
|
33
|
Misawa T, Fujisato T, Kanda Y, Ohoka N, Shoda T, Yorioka M, Makishima M, Sekino Y, Naito M, Demizu Y, Kurihara M. Design and synthesis of novel selective estrogen receptor degradation inducers based on the diphenylheptane skeleton. Medchemcomm 2017; 8:239-246. [PMID: 30108709 PMCID: PMC6072319 DOI: 10.1039/c6md00553e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Accepted: 11/17/2016] [Indexed: 12/31/2022]
Abstract
Estrogen receptors (ERs) are a family of nuclear receptors (NRs) that regulate physiological effects such as reproduction and bone homeostasis. It has been reported that approximately 70% of human breast cancers are hormone-dependent and ERα-positive. Recently, novel anti-breast cancer drugs based on different mechanisms of action have received significant attention. In this article, we have designed and synthesized a selective ER degradation inducer based on the diphenylheptane skeleton. Western blotting analysis revealed that PBP-NC10 degraded ERα through the ubiquitin-proteasome system. We also performed computational docking analysis to predict the binding mode of PBP-NC10 to ERα.
Collapse
Affiliation(s)
- Takashi Misawa
- National Institute of Health Sciences Setagaya , Tokyo , 158-8501 , Japan . ;
| | - Takuma Fujisato
- National Institute of Health Sciences Setagaya , Tokyo , 158-8501 , Japan . ;
| | - Yasunari Kanda
- National Institute of Health Sciences Setagaya , Tokyo , 158-8501 , Japan . ;
| | - Nobumichi Ohoka
- National Institute of Health Sciences Setagaya , Tokyo , 158-8501 , Japan . ;
| | - Takuji Shoda
- National Institute of Health Sciences Setagaya , Tokyo , 158-8501 , Japan . ;
| | - Momoko Yorioka
- National Institute of Health Sciences Setagaya , Tokyo , 158-8501 , Japan . ;
| | | | - Yuko Sekino
- National Institute of Health Sciences Setagaya , Tokyo , 158-8501 , Japan . ;
| | - Mikihiko Naito
- National Institute of Health Sciences Setagaya , Tokyo , 158-8501 , Japan . ;
| | - Yosuke Demizu
- National Institute of Health Sciences Setagaya , Tokyo , 158-8501 , Japan . ;
| | - Masaaki Kurihara
- National Institute of Health Sciences Setagaya , Tokyo , 158-8501 , Japan . ;
| |
Collapse
|
34
|
Furukawa K, Oba M, Toyama K, Opiyo GO, Demizu Y, Kurihara M, Doi M, Tanaka M. Low pH-triggering changes in peptide secondary structures. Org Biomol Chem 2017; 15:6302-6305. [DOI: 10.1039/c7ob01374d] [Citation(s) in RCA: 5] [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: 01/27/2023]
Abstract
An acidic treatment of cyclic α,α-disubstituted α-amino acid-containing peptides changes their conformation from a helical to a random structure.
Collapse
Affiliation(s)
- Kaori Furukawa
- Graduate School of Biomedical Sciences
- Nagasaki University
- Nagasaki 852-8521
- Japan
| | - Makoto Oba
- Graduate School of Biomedical Sciences
- Nagasaki University
- Nagasaki 852-8521
- Japan
| | - Kotomi Toyama
- Graduate School of Biomedical Sciences
- Nagasaki University
- Nagasaki 852-8521
- Japan
| | - George Ouma Opiyo
- Graduate School of Biomedical Sciences
- Nagasaki University
- Nagasaki 852-8521
- Japan
| | - Yosuke Demizu
- National Institute of Health Sciences
- Tokyo 158-8501
- Japan
| | - Masaaki Kurihara
- Department of Pharmaceutical Sciences
- International University of Health and Welfare
- Ohtawara
- Japan
| | - Mitsunobu Doi
- Osaka University of Pharmaceutical Sciences
- Osaka 569-1094
- Japan
| | - Masakazu Tanaka
- Graduate School of Biomedical Sciences
- Nagasaki University
- Nagasaki 852-8521
- Japan
| |
Collapse
|
35
|
Okuhira K, Shoda T, Omura R, Ohoka N, Hattori T, Shibata N, Demizu Y, Sugihara R, Ichino A, Kawahara H, Itoh Y, Ishikawa M, Hashimoto Y, Kurihara M, Itoh S, Saito H, Naito M. Targeted Degradation of Proteins Localized in Subcellular Compartments by Hybrid Small Molecules. Mol Pharmacol 2016; 91:159-166. [DOI: 10.1124/mol.116.105569] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Accepted: 12/09/2016] [Indexed: 01/18/2023] Open
|
36
|
Demizu Y, Okitsu K, Doi M, Misawa T, Oba M, Tanaka M, Kurihara M. Influence of L-Leu to D-Leu Replacement on the Helical Secondary Structures of L-Leu-Aib-Based Dodecapeptides. ChemistrySelect 2016. [DOI: 10.1002/slct.201601493] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Yosuke Demizu
- National Institute of Health Sciences; Setagaya Tokyo 158-8501 Japan
| | - Koyo Okitsu
- National Institute of Health Sciences; Setagaya Tokyo 158-8501 Japan
| | - Mitsunobu Doi
- Osaka University of Pharmaceutical Sciences; Osaka 569-1094 Japan
| | - Takashi Misawa
- National Institute of Health Sciences; Setagaya Tokyo 158-8501 Japan
| | - Makoto Oba
- Graduate School of Biomedical Sciences, Nagasaki University; Nagasaki 852-8521 Japan
| | - Masakazu Tanaka
- Graduate School of Biomedical Sciences, Nagasaki University; Nagasaki 852-8521 Japan
| | - Masaaki Kurihara
- National Institute of Health Sciences; Setagaya Tokyo 158-8501 Japan
| |
Collapse
|
37
|
Arai T, Ohno A, Mori K, Kuwata H, Mizuno M, Imai K, Hara S, Shibanuma M, Kurihara M, Miyata N, Nakagawa H, Fukuhara K. Inhibition of amyloid fibril formation and cytotoxicity by caffeic acid-conjugated amyloid-β C-terminal peptides. Bioorg Med Chem Lett 2016; 26:5468-5471. [PMID: 27789140 DOI: 10.1016/j.bmcl.2016.10.027] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Revised: 10/07/2016] [Accepted: 10/11/2016] [Indexed: 11/16/2022]
Abstract
Amyloid-β (Aβ) deposition and oxidative stress observed in the brains of patients with Alzheimer's disease (AD) are important targets for therapeutic intervention. In this study, we conjugated the antioxidants caffeic acid (CA) and dihydrocaffeic acid (DHCA) to Aβ1-42 C-terminal motifs (Aβx-42: x=38, 40) to synthesize CA-Aβx-42 and DHCA-Aβx-42, respectively. Among the compounds, CA-Aβ38-42 exhibited potent inhibitory activity against Aβ1-42 aggregation and scavenged Aβ1-42-induced intracellular oxidative stress. Moreover, CA-Aβ38-42 significantly protected human neuroblastoma SH-SY5Y cells against Aβ1-42-induced cytotoxicity, with an IC50 of 4μM. These results suggest that CA-Aβ38-42 might be a potential lead for the treatment of AD.
Collapse
Affiliation(s)
- Takuya Arai
- Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-dori, Mizuho-ku, Nagoya, Aichi 467-8603, Japan; School of Pharmaceutical Sciences, Showa University, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan
| | - Akiko Ohno
- Division of Organic Chemistry, National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan
| | - Kazunori Mori
- School of Pharmaceutical Sciences, Showa University, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan
| | - Hiroshi Kuwata
- School of Pharmaceutical Sciences, Showa University, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan
| | - Mirei Mizuno
- School of Pharmaceutical Sciences, Showa University, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan
| | - Kohei Imai
- School of Pharmaceutical Sciences, Showa University, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan
| | - Shuntaro Hara
- School of Pharmaceutical Sciences, Showa University, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan
| | - Motoko Shibanuma
- School of Pharmaceutical Sciences, Showa University, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan
| | - Masaaki Kurihara
- Division of Organic Chemistry, National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan
| | - Naoki Miyata
- Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-dori, Mizuho-ku, Nagoya, Aichi 467-8603, Japan
| | - Hidehiko Nakagawa
- Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-dori, Mizuho-ku, Nagoya, Aichi 467-8603, Japan
| | - Kiyoshi Fukuhara
- School of Pharmaceutical Sciences, Showa University, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan.
| |
Collapse
|
38
|
Nishimura S, Mizuno H, Akashi T, Takata T, Nakamura F, Goda F, Mihara C, Sato H, Kurihara M, Sasaki M. MON-P192: Clinical Usefulness of New Type Formulathat Features a State Change from Liquid to Semi-Solidified in the Stomach. Clin Nutr 2016. [DOI: 10.1016/s0261-5614(16)30826-3] [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: 11/15/2022]
|
39
|
Takaoka A, Sasaki M, Nakanishi N, Kurihara M, Ohi A, Bamba S, Ban H, Andoh A. SUN-P052: Nutritional Screening and Clinical Outcome in Hospitalized Patients with Crohn’s Disease. Clin Nutr 2016. [DOI: 10.1016/s0261-5614(16)30395-8] [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: 11/24/2022]
|
40
|
Takemura Y, Sasaki M, Goto K, Takaoka A, Ohi A, Kurihara M, Nakanishi N, Nakano Y, Hanaoka J. PT08.3: Proinflammatory Cytokine IL-6, But Not TNF-α, Affects Energy Metabolism and Nutritional Status in Patients with Lung Cancer. Clin Nutr 2016. [DOI: 10.1016/s0261-5614(16)30328-4] [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: 10/21/2022]
|
41
|
Shoda T, Kato M, Fujisato T, Demizu Y, Inoue H, Naito M, Kurihara M. Tamoxifen and Fulvestrant Hybrids Showed Potency as Selective Estrogen Receptor Down-Regulators. Med Chem 2016; 13:206-213. [PMID: 27494098 DOI: 10.2174/1573406412666160805101408] [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: 05/12/2016] [Revised: 07/27/2016] [Accepted: 07/29/2016] [Indexed: 11/22/2022]
Abstract
BACKGROUND Estrogen receptors (ERs) are an important target for the management of breast cancers. Selective estrogen receptor down-regulators (SERDs) block ER activity, as well as reduce ERα protein levels in cells, and therefore are promising therapeutic agents for the treatment of breast cancers. OBJECTIVE In order to develop potent SERDs, we prepared tamoxifen and fulvestrant hybrids and evaluated their binding activity and down-regulation of ERα. METHODS We designed and synthesized tamoxifen derivatives, which had a 4,4,5,5,5- pentafluoropentyl group on the terminal alkyl chain. The oxidation state of the sulfur atom and alkyl length between the sulfur and nitrogen atoms were varied. Western blotting was performed to determine the ability to down-regulate ERα. Binding affinities of synthesized compounds were evaluated by a fluorescence polarization-based competitive binding assay. RESULTS We successfully prepared nine compounds. Treatment with 11, 14, and 17 effectively reduced ERα protein levels in MCF-7 cells in a concentration-dependent manner. This reduction was inhibited by a proteasome inhibitor. The ability of 14 to down-regulate the ERα protein level was equal to fulvestrant. All compounds showed a largely equal affinity for ERα. CONCLUSION As indicated by Western blots, the ERα degradation activity was observed only in the series of butyl linker derivatives, namely, 11, 14, and 17. These findings suggest that the specific length of the alkyl chain is an important factor in controlling the down-regulation of ER. These results provide useful information for designing promising SERD candidates.
Collapse
Affiliation(s)
- Takuji Shoda
- National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan
| | - Masashi Kato
- School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Takuma Fujisato
- School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Yosuke Demizu
- National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan
| | - Hideshi Inoue
- School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Mikihiko Naito
- School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Masaaki Kurihara
- National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan
| |
Collapse
|
42
|
Akiyama N, Takizawa N, Miyauchi M, Yanai H, Tateishi R, Shinzawa M, Yoshinaga R, Kurihara M, Demizu Y, Yasuda H, Yagi S, Wu G, Matsumoto M, Sakamoto R, Yoshida N, Penninger JM, Kobayashi Y, Inoue JI, Akiyama T. Identification of embryonic precursor cells that differentiate into thymic epithelial cells expressing autoimmune regulator. J Exp Med 2016; 213:1441-58. [PMID: 27401343 PMCID: PMC4986530 DOI: 10.1084/jem.20151780] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Accepted: 05/25/2016] [Indexed: 01/21/2023] Open
Abstract
Medullary thymic epithelial cells (mTECs) expressing autoimmune regulator (Aire) are critical for preventing the onset of autoimmunity. However, the differentiation program of Aire-expressing mTECs (Aire(+) mTECs) is unclear. Here, we describe novel embryonic precursors of Aire(+) mTECs. We found the candidate precursors of Aire(+) mTECs (pMECs) by monitoring the expression of receptor activator of nuclear factor-κB (RANK), which is required for Aire(+) mTEC differentiation. pMECs unexpectedly expressed cortical TEC molecules in addition to the mTEC markers UEA-1 ligand and RANK and differentiated into mTECs in reaggregation thymic organ culture. Introduction of pMECs in the embryonic thymus permitted long-term maintenance of Aire(+) mTECs and efficiently suppressed the onset of autoimmunity induced by Aire(+) mTEC deficiency. Mechanistically, pMECs differentiated into Aire(+) mTECs by tumor necrosis factor receptor-associated factor 6-dependent RANK signaling. Moreover, nonclassical nuclear factor-κB activation triggered by RANK and lymphotoxin-β receptor signaling promoted pMEC induction from progenitors exhibiting lower RANK expression and higher CD24 expression. Thus, our findings identified two novel stages in the differentiation program of Aire(+) mTECs.
Collapse
Affiliation(s)
- Nobuko Akiyama
- Division of Cellular and Molecular Biology, The Institute of Medical Science, The University of Tokyo, Shirokane-dai, Minato-ku, Tokyo 108-8639, Japan
| | - Nobukazu Takizawa
- Division of Cellular and Molecular Biology, The Institute of Medical Science, The University of Tokyo, Shirokane-dai, Minato-ku, Tokyo 108-8639, Japan
| | - Maki Miyauchi
- Division of Cellular and Molecular Biology, The Institute of Medical Science, The University of Tokyo, Shirokane-dai, Minato-ku, Tokyo 108-8639, Japan
| | - Hiromi Yanai
- Division of Cellular and Molecular Biology, The Institute of Medical Science, The University of Tokyo, Shirokane-dai, Minato-ku, Tokyo 108-8639, Japan
| | - Ryosuke Tateishi
- Division of Cellular and Molecular Biology, The Institute of Medical Science, The University of Tokyo, Shirokane-dai, Minato-ku, Tokyo 108-8639, Japan
| | - Miho Shinzawa
- Division of Cellular and Molecular Biology, The Institute of Medical Science, The University of Tokyo, Shirokane-dai, Minato-ku, Tokyo 108-8639, Japan
| | - Riko Yoshinaga
- Division of Cellular and Molecular Biology, The Institute of Medical Science, The University of Tokyo, Shirokane-dai, Minato-ku, Tokyo 108-8639, Japan
| | - Masaaki Kurihara
- Division of Organic Chemistry, National Institute of Health Sciences, Kamiyoga, Setagaya, Tokyo 158-8501, Japan
| | - Yosuke Demizu
- Division of Organic Chemistry, National Institute of Health Sciences, Kamiyoga, Setagaya, Tokyo 158-8501, Japan
| | - Hisataka Yasuda
- Nagahama Institute for Biochemical Science, Oriental Yeast Co., Ltd., 50, Kano-cho, Nagahama, Shiga 526-0804, Japan
| | - Shintaro Yagi
- Laboratory of Cellular Biochemistry, Department of Animal Resource Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Guoying Wu
- Laboratory of Cellular Biochemistry, Department of Animal Resource Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Mitsuru Matsumoto
- Division of Molecular Immunology, Institute for Enzyme Research, Tokushima University, Tokushima 770-8503, Japan
| | - Reiko Sakamoto
- Laboratory of Developmental Genetics, Center for Experimental Medicine and Systems Biology, The Institute of Medical Science, The University of Tokyo, Shirokane-dai, Minato-ku, Tokyo 108-8639, Japan
| | - Nobuaki Yoshida
- Laboratory of Developmental Genetics, Center for Experimental Medicine and Systems Biology, The Institute of Medical Science, The University of Tokyo, Shirokane-dai, Minato-ku, Tokyo 108-8639, Japan
| | - Josef M Penninger
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences, 1030 Vienna, Austria
| | - Yasuhiro Kobayashi
- Institute for Oral Science, Matsumoto Dental University, Hiro-oka, Shiojiri-shi, Nagano 399-0781, Japan
| | - Jun-Ichiro Inoue
- Division of Cellular and Molecular Biology, The Institute of Medical Science, The University of Tokyo, Shirokane-dai, Minato-ku, Tokyo 108-8639, Japan
| | - Taishin Akiyama
- Division of Cellular and Molecular Biology, The Institute of Medical Science, The University of Tokyo, Shirokane-dai, Minato-ku, Tokyo 108-8639, Japan
| |
Collapse
|
43
|
Arai T, Ohno A, Kazunori M, Kakizawa T, Kuwata H, Ozawa T, Shibanuma M, Hara S, Ishida S, Kurihara M, Miyata N, Nakagawa H, Fukuhara K. Design, synthesis, and evaluation of Trolox-conjugated amyloid-β C-terminal peptides for therapeutic intervention in an in vitro model of Alzheimer's disease. Bioorg Med Chem 2016; 24:4138-4143. [PMID: 27407032 DOI: 10.1016/j.bmc.2016.06.057] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [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: 05/12/2016] [Revised: 06/28/2016] [Accepted: 06/29/2016] [Indexed: 12/19/2022]
Abstract
Two hallmarks of Alzheimer's disease (AD) observed in the brains of patients with the disease include oxidative injury and deposition of protein aggregates comprised of amyloid-β (Aβ) variants. To inhibit these toxic processes, we synthesized antioxidant-conjugated peptides comprised of Trolox and various C-terminal motifs of Aβ variants, TxAβx-n (x=34, 36, 38, 40; n=40, 42, 43). Most of these compounds were found to exhibit anti-aggregation activities. Among them, TxAβ36-42 significantly inhibited Aβ1-42 aggregation, showed potent antioxidant activity, and protected SH-SY5Y cells from Aβ1-42-induced cytotoxicity. Thus, this method represents a promising strategy for developing multifunctional AD therapeutic agents.
Collapse
Affiliation(s)
- Takuya Arai
- Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-dori, Mizuho-ku, Nagoya, Aichi 467-8603, Japan; School of Pharmaceutical Sciences, Showa University, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan
| | - Akiko Ohno
- Division of Organic Chemistry, National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan
| | - Mori Kazunori
- School of Pharmaceutical Sciences, Showa University, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan
| | - Taeko Kakizawa
- Division of Organic Chemistry, National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan
| | - Hiroshi Kuwata
- School of Pharmaceutical Sciences, Showa University, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan
| | - Toshihiko Ozawa
- Division of Oxidative Stress Research, Showa Pharmaceutical University, 3-3165 Higashi-Tamagawagakuen, Machida-shi, Tokyo 194-8543, Japan
| | - Motoko Shibanuma
- School of Pharmaceutical Sciences, Showa University, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan
| | - Shuntaro Hara
- School of Pharmaceutical Sciences, Showa University, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan
| | - Seiichi Ishida
- Division of Pharmacology, National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan
| | - Masaaki Kurihara
- Division of Organic Chemistry, National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan
| | - Naoki Miyata
- Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-dori, Mizuho-ku, Nagoya, Aichi 467-8603, Japan
| | - Hidehiko Nakagawa
- Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-dori, Mizuho-ku, Nagoya, Aichi 467-8603, Japan
| | - Kiyoshi Fukuhara
- School of Pharmaceutical Sciences, Showa University, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan.
| |
Collapse
|
44
|
Sakakibara N, Igarashi J, Takata M, Demizu Y, Misawa T, Kurihara M, Konishi R, Kato Y, Maruyama T, Tsukamoto I. Synthesis and Evaluation of Novel Carbocyclic Oxetanocin A (COA-Cl) Derivatives as Potential Tube Formation Agents. Chem Pharm Bull (Tokyo) 2016; 63:701-9. [PMID: 26329863 DOI: 10.1248/cpb.c15-00386] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Six novel carbocyclic oxetanocin A analogs (2-chloro-C.OXT-A; COA-Cl) with various hydroxymethylated or spiro-conjugated cyclobutane rings at the N(9)-position of the 2-chloropurine moiety were synthesized and evaluated using human umbilical vein endothelial cells. All prepared compounds (2a-f) showed good to moderate activity with angiogenic potency. Among these compounds, 100 µM cis-trans-2',3'-bis(hydroxymethyl)cyclobutyl derivative (2b), trans-3'-hydroxymethylcyclobutyl analog (2d), and 3',3'-bis(hydroxymethyl)cyclobutyl derivative (2e) had greater angiogenic activity, with relative tube areas of 3.43±0.44, 3.32±0.53, and 3.59±0.83 (mean±standard deviation (S.D.)), respectively, which was comparable to COA-Cl (3.91±0.78). These data may be important for further development of this class of compounds as potential tube formation agents.
Collapse
Affiliation(s)
- Norikazu Sakakibara
- Faculty of Pharmaceutical Sciences at Kagawa Campus, Tokushima Bunri University
| | | | | | | | | | | | | | | | | | | |
Collapse
|
45
|
Demizu Y, Ohoka N, Nagakubo T, Yamashita H, Misawa T, Okuhira K, Naito M, Kurihara M. Development of a peptide-based inducer of nuclear receptors degradation. Bioorg Med Chem Lett 2016; 26:2655-8. [DOI: 10.1016/j.bmcl.2016.04.013] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Revised: 04/01/2016] [Accepted: 04/06/2016] [Indexed: 02/07/2023]
|
46
|
Demizu Y, Doi M, Yamashita H, Misawa T, Oba M, Kurihara M, Suemune H, Tanaka M. The side-chain hydroxy groups of a cyclic α,α-disubstituted α-amino acid promote oligopeptide 310 -helix packing in the crystalline state. Biopolymers 2016; 106:757-68. [PMID: 27237543 DOI: 10.1002/bip.22881] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Revised: 05/09/2016] [Accepted: 05/23/2016] [Indexed: 01/08/2023]
Abstract
A single chiral cyclic α,α-disubstituted amino acid with side-chain methoxymethyl (MOM) protecting groups, (3S,4S)-1-amino-(3,4-dimethoxymethoxy)cyclopentanecarboxylic acid [(S, S)-Ac5 c(dOMOM) ], or side-chain hydroxy groups, (3S,4S)-1-amino-(3,4-dihydroxy)cyclopentanecarboxylic acid [(S, S)-Ac5 c(dOH) ], was attached to the N-terminal or C-terminal position of α-aminoisobutyric acid (Aib) tetrapeptide segments; i.e., we designed and synthesized four pentapeptides, Cbz-[(S, S)-Ac5 c(dOMOM) ]-(Aib)4 -OEt (1), Cbz-[(S, S)-Ac5 c(dOH) ]-(Aib)4 -OEt (2), Cbz-(Aib)4 -[(S, S)-Ac5 c(dOMOM) ]-OMe (3), and Cbz-(Aib)4 -[(S, S)-Ac5 c(dOH) ]-OMe (4). We then analyzed the peptides' structures in the crystalline state. The four peptides all folded into 310 -helical structures; 1 formed a left-handed (M) 310 -helix, 2 formed a mixture of right-handed (P) and (M) 310 -helices, 3 formed a mixture of (P) and (M) 310 -helices, and 4 formed a (P) 310 -helix, respectively. In packing mode, the molecules of peptides 1 and 3, which both possessed an Ac5 c(dOMOM) residue, were connected by intermolecular hydrogen bonds along the peptide backbone (NH···O type). On the other hand, the packing of peptides 2 and 4, which both contained an Ac5 c(dOH) residue, was based on intermolecular hydrogen bonds derived from both the peptide backbone and the side-chain hydroxy groups of the amino acid Ac5 c(dOH) (OH···O type). © 2016 Wiley Periodicals, Inc. Biopolymers (Pept Sci) 106: 757-768, 2016.
Collapse
Affiliation(s)
- Yosuke Demizu
- Division of Organic Chemistry, National Institute of Health Sciences, Tokyo, 158-8501, Japan.
| | - Mitsunobu Doi
- Osaka University of Pharmaceutical Sciences, Osaka, 569-1094, Japan
| | - Hiroko Yamashita
- Division of Organic Chemistry, National Institute of Health Sciences, Tokyo, 158-8501, Japan
| | - Takashi Misawa
- Division of Organic Chemistry, National Institute of Health Sciences, Tokyo, 158-8501, Japan
| | - Makoto Oba
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-Machi, Nagasaki, 852-8521, Japan
| | - Masaaki Kurihara
- Division of Organic Chemistry, National Institute of Health Sciences, Tokyo, 158-8501, Japan
| | - Hiroshi Suemune
- Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Masakazu Tanaka
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-Machi, Nagasaki, 852-8521, Japan
| |
Collapse
|
47
|
Demizu Y, Okitsu K, Yamashita H, Doi M, Misawa T, Oba M, Tanaka M, Kurihara M. α-Helical Structures of Oligopeptides with an Alternating l-Leu-Aib Segment. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600327] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Yosuke Demizu
- National Institute of Health Sciences; Setagaya 158-8501 Tokyo Japan
| | - Koyo Okitsu
- National Institute of Health Sciences; Setagaya 158-8501 Tokyo Japan
| | - Hiroko Yamashita
- National Institute of Health Sciences; Setagaya 158-8501 Tokyo Japan
| | - Mitsunobu Doi
- Osaka University of Pharmaceutical Sciences; 569-1094 Osaka Japan
| | - Takashi Misawa
- National Institute of Health Sciences; Setagaya 158-8501 Tokyo Japan
| | - Makoto Oba
- Graduate School of Biomedical Sciences; Nagasaki University; 852-8521 Nagasaki Japan
| | - Masakazu Tanaka
- Graduate School of Biomedical Sciences; Nagasaki University; 852-8521 Nagasaki Japan
| | - Masaaki Kurihara
- National Institute of Health Sciences; Setagaya 158-8501 Tokyo Japan
| |
Collapse
|
48
|
Kato T, Yamashita H, Misawa T, Nishida K, Kurihara M, Tanaka M, Demizu Y, Oba M. Plasmid DNA delivery by arginine-rich cell-penetrating peptides containing unnatural amino acids. Bioorg Med Chem 2016; 24:2681-7. [PMID: 27132868 DOI: 10.1016/j.bmc.2016.04.031] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [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: 03/15/2016] [Revised: 04/13/2016] [Accepted: 04/16/2016] [Indexed: 10/21/2022]
Abstract
Cell-penetrating peptides (CPPs) have been developed as drug, protein, and gene delivery tools. In the present study, arginine (Arg)-rich CPPs containing unnatural amino acids were designed to deliver plasmid DNA (pDNA). The transfection ability of one of the Arg-rich CPPs examined here was more effective than that of the Arg nonapeptide, which is the most frequently used CPP. The transfection efficiencies of Arg-rich CPPs increased with longer post-incubation times and were significantly higher at 48-h and 72-h post-incubation than that of the commercially available transfection reagent TurboFect. These Arg-rich CPPs were complexed with pDNA for a long time in cells and effectively escaped from the late endosomes/lysosomes into the cytoplasm. These results will be helpful for designing novel CPPs for pDNA delivery.
Collapse
Affiliation(s)
- Takuma Kato
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Hiroko Yamashita
- Division of Organic Chemistry, National Institute of Health Sciences, Setagaya, Tokyo 158-8501, Japan; Graduate School of Bioscience and Biotechnology, Tokyo Institute of Technology, Yokohama 226-8501, Japan
| | - Takashi Misawa
- Division of Organic Chemistry, National Institute of Health Sciences, Setagaya, Tokyo 158-8501, Japan
| | - Koyo Nishida
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Masaaki Kurihara
- Division of Organic Chemistry, National Institute of Health Sciences, Setagaya, Tokyo 158-8501, Japan; Graduate School of Bioscience and Biotechnology, Tokyo Institute of Technology, Yokohama 226-8501, Japan
| | - Masakazu Tanaka
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Yosuke Demizu
- Division of Organic Chemistry, National Institute of Health Sciences, Setagaya, Tokyo 158-8501, Japan.
| | - Makoto Oba
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan.
| |
Collapse
|
49
|
Sakakibara N, Baba M, Okamoto M, Toyama M, Demizu Y, Misawa T, Kurihara M, Irie K, Kato Y, Maruyama T. Design, synthesis, and anti-HIV-1 activity of 1-aromatic methyl-substituted 3-(3,5-dimethylbenzyl)uracil and N-3,5-dimethylbenzyl-substituted urea derivatives. Antivir Chem Chemother 2016; 24:3-18. [PMID: 26149262 DOI: 10.1177/2040206614566584] [Citation(s) in RCA: 8] [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] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND A new series of 1-aromatic methyl-substituted 3-(3,5-dimethylbenzyl)uracil and N-3,5-dimethylbenzyl-substituted urea derivatives were synthesized and evaluated as non-nucleoside HIV-1 reverse transcriptase inhibitors. METHODS A series of new 6-azido and 6-amino derivatives of 1-substituted-3-(3,5-dimethylbenzyl)uracils were synthesized using our previously reported method, and three acyclic derivatives were synthesized from urea. The anti-HIV-1 activities of these compounds were determined based on the inhibition of virus-induced cytopathogenicity in MT-4 cells. The cytotoxicities of the compounds were evaluated using the viability of mock-infected cells. RESULTS Some of these compounds showed good-to-moderate activities against HIV-1 with half maximal effective concentration (EC50) values in the submicromolar or subnanomolar range. Compared with emivirine, compound 6-amino-3-(3,5-dimethylbenzyl)-1-(4-aminobenzyl)uracil showed significant anti-HIV-1 activity with an EC50 value of 10 nM and a high selectivity index of 1923. Preliminary structure-activity relationship studies and molecular modeling analyses were carried out to explore the major interactions between HIV-1 reverse transcriptase and the potent inhibitor 6-amino-3-(3,5-dimethylbenzyl)-1-(4-aminobenzyl)uracil; these results may be important for further development of this class of compounds as anti-HIV-1 agents. CONCLUSION The excellent activity of 6-amino-3-(3,5-dimethylbenzyl)-1-(4-aminobenzyl)uracil (EC50: 0.010 ± 0.006 µM, SI: >1923) may serve as the basis for conducting further investigations on the behavior of this class of compounds against drug-resistant mutants.
Collapse
Affiliation(s)
- Norikazu Sakakibara
- Faculty of Pharmaceutical Sciences at Kagawa Campus, Tokushima Bunri University, Sanuki City, Kagawa, Japan
| | - Masanori Baba
- Division of Antiviral Chemotherapy, Center for Chronic Viral Diseases, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Mika Okamoto
- Division of Antiviral Chemotherapy, Center for Chronic Viral Diseases, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Masaaki Toyama
- Division of Antiviral Chemotherapy, Center for Chronic Viral Diseases, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Yosuke Demizu
- Division of Organic Chemistry, National Institute of Health Sciences, Setagaya, Tokyo, Japan
| | - Takashi Misawa
- Division of Organic Chemistry, National Institute of Health Sciences, Setagaya, Tokyo, Japan
| | - Masaaki Kurihara
- Division of Organic Chemistry, National Institute of Health Sciences, Setagaya, Tokyo, Japan
| | - Kohji Irie
- Faculty of Pharmaceutical Sciences at Kagawa Campus, Tokushima Bunri University, Sanuki City, Kagawa, Japan
| | - Yoshihisa Kato
- Faculty of Pharmaceutical Sciences at Kagawa Campus, Tokushima Bunri University, Sanuki City, Kagawa, Japan
| | - Tokumi Maruyama
- Faculty of Pharmaceutical Sciences at Kagawa Campus, Tokushima Bunri University, Sanuki City, Kagawa, Japan
| |
Collapse
|
50
|
Demizu Y, Yamashita H, Misawa T, Doi M, Oba M, Tanaka M, Kurihara M. Handedness Preferences of Heterochiral Helical Peptides Containing Homochiral Peptide Segments. European J Org Chem 2016. [DOI: 10.1002/ejoc.201501146] [Citation(s) in RCA: 4] [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] [Indexed: 02/02/2023]
|