1
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Bérubé C, Borgia A, Voyer N. Total synthesis of the macrocyclic peptide stylopeptide II using oxime resin. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.153677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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2
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Yamamura H, Hagiwara T, Hayashi Y, Osawa K, Kato H, Katsu T, Masuda K, Sumino A, Yamashita H, Jinno R, Abe M, Miyagawa A. Antibacterial Activity of Membrane-Permeabilizing Bactericidal Cyclodextrin Derivatives. ACS OMEGA 2021; 6:31831-31842. [PMID: 34870006 PMCID: PMC8638021 DOI: 10.1021/acsomega.1c04541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 10/29/2021] [Indexed: 05/08/2023]
Abstract
Antimicrobial peptides that act by disrupting bacterial membranes are attractive agents for treating drug-resistant bacteria. This study investigates a membrane-disrupting peptide mimic made of a cyclic oligosaccharide cyclodextrin scaffold that can be chemically polyfunctionalized. An antibacterial functional group on the peptide was simplified to an alkylamino group that combines cationic and hydrophobic moieties, the former to interact with the anionic bacterial membrane and the latter with the membrane interior. The cyclodextrins equipped with eight alkylamino groups on the molecules using a poly-click reaction exhibited antibacterial activity against Gram-positive and Gram-negative bacteria, including drug-resistant pathogens such as carbapenem-resistant Enterobacteriaceae. Several lines of evidence showed that these agents disrupt bacterial membranes, leading to rapid bacterial cell death. The resulting membrane perturbation was directly visualized using high-speed atomic force microscopy imaging. In Gram-negative bacteria, the membrane-permeabilizing action of these derivatives allowed the entry of co-treated traditional antibiotics, which were then active against these bacteria.
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Affiliation(s)
- Hatsuo Yamamura
- Graduate
School of Engineering, Nagoya Institute
of Technology, Showa-ku, Nagoya 466-8555, Japan
| | - Tatsuya Hagiwara
- Graduate
School of Engineering, Nagoya Institute
of Technology, Showa-ku, Nagoya 466-8555, Japan
| | - Yuma Hayashi
- Graduate
School of Engineering, Nagoya Institute
of Technology, Showa-ku, Nagoya 466-8555, Japan
| | - Kayo Osawa
- Department
of Medical Technology, Faculty of Health Sciences, Kobe Tokiwa University, Nagata-ku, Kobe 653-0838, Japan
| | - Hisato Kato
- Graduate
School of Clinical Pharmacy, Shujitsu University, Naka-ku, Okayama 703-8516, Japan
| | - Takashi Katsu
- Graduate
School of Clinical Pharmacy, Shujitsu University, Naka-ku, Okayama 703-8516, Japan
| | - Kazufumi Masuda
- Graduate
School of Clinical Pharmacy, Shujitsu University, Naka-ku, Okayama 703-8516, Japan
| | - Ayumi Sumino
- Nano
Life Science Institute (WPI-NanoLSI), Kanazawa
University, Kakumamachi, Kanazawa 920-1192, Japan
- Institute
for Frontier Science Initiative, Kanazawa
University, Kakumamachi, Kanazawa 920-1192, Japan
| | - Hayato Yamashita
- Graduate
School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Ryo Jinno
- Graduate
School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Masayuki Abe
- Graduate
School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Atsushi Miyagawa
- Graduate
School of Engineering, Nagoya Institute
of Technology, Showa-ku, Nagoya 466-8555, Japan
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3
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Guan Q, Chen K, Chen Q, Hu J, Cheng K, Hu C, Zhu J, Jin Y, Miclet E, Alezra V, Wan Y. Development of Therapeutic Gramicidin S Analogues Bearing Plastic β,γ-Diamino Acids. ChemMedChem 2020; 15:1089-1100. [PMID: 32233075 DOI: 10.1002/cmdc.202000097] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Indexed: 12/12/2022]
Abstract
Gramicidin S (GS), one of the most widely investigated antimicrobial peptides (AMPs), is known for its robust antimicrobial activity. However, it is restricted to topical application due to undesired hemolytic activity. With the aim of obtaining nontoxic GS analogues, we describe herein a molecular approach in which the native GS β-turn region is replaced by synthetic β,γ-diamino acids (β,γ-DiAAs). Four β,γ-DiAA diastereomers were employed to mimic the β-turn structure to afford GS analogues GS3-6, which exhibit diminished hemolytic activity. A comparative structural study demonstrates that the (βR,γS)-DiAA is the most-stable β-turn mimic. To further improve the therapeutic index (e. g., high antibacterial activity and low hemolytic activity) and to extend the molecular diversity, GS5 and GS6 were used as structural scaffolds to introduce additional hydrophobic or hydrophilic groups. We show that GS6K, GS6F and GS display comparable antibacterial activity, and GS6K and GS6F have significantly decreased toxicity. Moreover, antibacterial mechanism studies suggest that GS6K kills bacteria mainly through the disruption of the membrane.
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Affiliation(s)
- Qinkun Guan
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Traditional Chinese Medicine, 1688 Meiling Avenue, WanLi, Nanchang, 330004, P. R. China
| | - Kaisen Chen
- Department of Clinical Laboratory, The First Affiliated Hospital of Nanchang University, 17 Yongwaizheng Street, Donghu, Nanchang, 330006, P. R. China
| | - Qiang Chen
- Department of Clinical Laboratory, The First Affiliated Hospital of Nanchang University, 17 Yongwaizheng Street, Donghu, Nanchang, 330006, P. R. China
| | - Jianguo Hu
- College of Pharmacy, Jiangxi University of Traditional Chinese Medicine, 1688 Meiling Avenue, WanLi, Nanchang, 330004, P. R. China
| | - Keguang Cheng
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Normal University, 15 Yuchai Road, Guilin, 541004, P. R. China
| | - Chengfei Hu
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Traditional Chinese Medicine, 1688 Meiling Avenue, WanLi, Nanchang, 330004, P. R. China
| | - Jibao Zhu
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Traditional Chinese Medicine, 1688 Meiling Avenue, WanLi, Nanchang, 330004, P. R. China
| | - Yi Jin
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Traditional Chinese Medicine, 1688 Meiling Avenue, WanLi, Nanchang, 330004, P. R. China
| | - Emeric Miclet
- Laboratoire des Biomolécules, Sorbonne Université, Université PSL, CNRS, 4 Place Jussieu, Paris, 75005, France
| | - Valérie Alezra
- Laboratoire de Méthodologie, Synthèse et Molécules Thérapeutiques (ICMMO), Université Paris-Sud, UMR 8182 CNRS, Université Paris-Saclay, Bât. 410, Faculté des Sciences d'Orsay, Orsay, 91405, France
| | - Yang Wan
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Traditional Chinese Medicine, 1688 Meiling Avenue, WanLi, Nanchang, 330004, P. R. China.,State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Normal University, 15 Yuchai Road, Guilin, 541004, P. R. China.,Laboratoire de Méthodologie, Synthèse et Molécules Thérapeutiques (ICMMO), Université Paris-Sud, UMR 8182 CNRS, Université Paris-Saclay, Bât. 410, Faculté des Sciences d'Orsay, Orsay, 91405, France
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4
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Yamamura H, Isshiki K, Fujita Y, Kato H, Katsu T, Masuda K, Osawa K, Miyagawa A. Gramicidin S-inspired antimicrobial cyclodextrin to disrupt gram-negative and gram-positive bacterial membranes. MEDCHEMCOMM 2019; 10:1432-1437. [PMID: 31803397 PMCID: PMC6836745 DOI: 10.1039/c9md00229d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 06/12/2019] [Indexed: 11/21/2022]
Abstract
A membrane-active antimicrobial peptide gramicidin S-like amphiphilic structure was prepared from cyclodextrin. The mimic was a cyclic oligomer composed of 6-amino-modified glucose 2,3-di-O-propanoates and it exhibited antimicrobial activity against Gram-positive and Gram-negative bacteria, together with no resistance development and low haemolytic activity against red blood cells.
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Affiliation(s)
- Hatsuo Yamamura
- Materials Science and Engineering , Graduate School of Engineering , Nagoya Institute of Technology , Gokiso-cho, Showa-ku , Nagoya 466-8555 , Japan .
| | - Kana Isshiki
- Materials Science and Engineering , Graduate School of Engineering , Nagoya Institute of Technology , Gokiso-cho, Showa-ku , Nagoya 466-8555 , Japan .
| | - Yusuke Fujita
- Materials Science and Engineering , Graduate School of Engineering , Nagoya Institute of Technology , Gokiso-cho, Showa-ku , Nagoya 466-8555 , Japan .
| | - Hisato Kato
- School of Pharmacy , Shujitsu University , 1-6-1 Nishigawara, Naka-ku, Okayama-shi , Okayama 703-8516 , Japan
| | - Takashi Katsu
- School of Pharmacy , Shujitsu University , 1-6-1 Nishigawara, Naka-ku, Okayama-shi , Okayama 703-8516 , Japan
| | - Kazufumi Masuda
- Graduate School of Clinical Pharmacy , Shujitsu University , 1-6-1 Nishigawara, Naka-ku, Okayama-shi , Okayama 703-8516 , Japan
| | - Kayo Osawa
- Department of Biophysics , Kobe University , Graduate School of Health Sciences , 7-10-2 Tomogaoka, Suma-ku , Kobe 654-0142 , Japan
| | - Atsushi Miyagawa
- Materials Science and Engineering , Graduate School of Engineering , Nagoya Institute of Technology , Gokiso-cho, Showa-ku , Nagoya 466-8555 , Japan .
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5
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Guan Q, Huang S, Jin Y, Campagne R, Alezra V, Wan Y. Recent Advances in the Exploration of Therapeutic Analogues of Gramicidin S, an Old but Still Potent Antimicrobial Peptide. J Med Chem 2019; 62:7603-7617. [DOI: 10.1021/acs.jmedchem.9b00156] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Qinkun Guan
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Traditional Chinese Medicine, Nanchang 330006, P. R. China
| | - Shuhui Huang
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Traditional Chinese Medicine, Nanchang 330006, P. R. China
- Jiangxi Maternal and Child Hospital, Nanchang 330006, P. R. China
| | - Yi Jin
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Traditional Chinese Medicine, Nanchang 330006, P. R. China
| | - Rémy Campagne
- Faculté des Sciences d’Orsay, Université Paris-Sud, Laboratoire de Méthodologie, Synthèse
et Molécules Thérapeutiques, ICMMO, UMR 8182, CNRS,
Université Paris-Saclay, Bât 410, 91405 Orsay, France
| | - Valérie Alezra
- Faculté des Sciences d’Orsay, Université Paris-Sud, Laboratoire de Méthodologie, Synthèse
et Molécules Thérapeutiques, ICMMO, UMR 8182, CNRS,
Université Paris-Saclay, Bât 410, 91405 Orsay, France
| | - Yang Wan
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Traditional Chinese Medicine, Nanchang 330006, P. R. China
- Faculté des Sciences d’Orsay, Université Paris-Sud, Laboratoire de Méthodologie, Synthèse
et Molécules Thérapeutiques, ICMMO, UMR 8182, CNRS,
Université Paris-Saclay, Bât 410, 91405 Orsay, France
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6
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Babii O, Afonin S, Ishchenko AY, Schober T, Negelia AO, Tolstanova GM, Garmanchuk LV, Ostapchenko LI, Komarov IV, Ulrich AS. Structure–Activity Relationships of Photoswitchable Diarylethene-Based β-Hairpin Peptides as Membranolytic Antimicrobial and Anticancer Agents. J Med Chem 2018; 61:10793-10813. [DOI: 10.1021/acs.jmedchem.8b01428] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Oleg Babii
- Institute of Biological Interfaces (IBG-2), Karlsruhe Institute of Technology (KIT), POB 3640, 76021 Karlsruhe, Germany
| | - Sergii Afonin
- Institute of Biological Interfaces (IBG-2), Karlsruhe Institute of Technology (KIT), POB 3640, 76021 Karlsruhe, Germany
| | - Aleksandr Yu. Ishchenko
- Institute of High Technologies, Taras Shevchenko National University of Kyiv, Vul. Volodymyrska 60, 01601 Kyiv, Ukraine
- Enamine Ltd., Vul. Chervonotkatska 78, 02066 Kyiv, Ukraine
| | - Tim Schober
- Institute of Organic Chemistry (IOC), Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 6, 76131 Karlsruhe, Germany
| | - Anatoliy O. Negelia
- Institute of Biology and Medicine, Taras Shevchenko National University of Kyiv, Prosp. Hlushkova 2, 03022 Kyiv, Ukraine
| | - Ganna M. Tolstanova
- Institute of Biology and Medicine, Taras Shevchenko National University of Kyiv, Prosp. Hlushkova 2, 03022 Kyiv, Ukraine
| | - Liudmyla V. Garmanchuk
- Institute of Biology and Medicine, Taras Shevchenko National University of Kyiv, Prosp. Hlushkova 2, 03022 Kyiv, Ukraine
| | - Liudmyla I. Ostapchenko
- Institute of Biology and Medicine, Taras Shevchenko National University of Kyiv, Prosp. Hlushkova 2, 03022 Kyiv, Ukraine
| | - Igor V. Komarov
- Institute of High Technologies, Taras Shevchenko National University of Kyiv, Vul. Volodymyrska 60, 01601 Kyiv, Ukraine
- Enamine Ltd., Vul. Chervonotkatska 78, 02066 Kyiv, Ukraine
- Lumobiotics GmbH, Auerstraße 2, 76227 Karlsruhe, Germany
| | - Anne S. Ulrich
- Institute of Biological Interfaces (IBG-2), Karlsruhe Institute of Technology (KIT), POB 3640, 76021 Karlsruhe, Germany
- Institute of Organic Chemistry (IOC), Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 6, 76131 Karlsruhe, Germany
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7
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Yeoh YQ, Yu J, Polyak SW, Horsley JR, Abell AD. Photopharmacological Control of Cyclic Antimicrobial Peptides. Chembiochem 2018; 19:2591-2597. [DOI: 10.1002/cbic.201800618] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2018] [Indexed: 12/20/2022]
Affiliation(s)
- Yuan Qi Yeoh
- ARC Centre of Excellence for Nanoscale BioPhotonics (CNBP)Department of ChemistryThe University of Adelaide, North Terrace Adelaide SA 5005 Australia
| | - Jingxian Yu
- ARC Centre of Excellence for Nanoscale BioPhotonics (CNBP)Department of ChemistryThe University of Adelaide, North Terrace Adelaide SA 5005 Australia
| | - Steven W. Polyak
- School of Biological SciencesDepartment of Molecular and Cellular BiologyThe University of Adelaide, North Terrace Adelaide SA 5005 Australia
| | - John R. Horsley
- ARC Centre of Excellence for Nanoscale BioPhotonics (CNBP)Department of ChemistryThe University of Adelaide, North Terrace Adelaide SA 5005 Australia
| | - Andrew D. Abell
- ARC Centre of Excellence for Nanoscale BioPhotonics (CNBP)Department of ChemistryThe University of Adelaide, North Terrace Adelaide SA 5005 Australia
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8
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Legrand B, Mathieu L, Lebrun A, Andriamanarivo S, Lisowski V, Masurier N, Zirah S, Kang YK, Martinez J, Maillard LT. Thiazole-Based γ-Building Blocks as Reverse-Turn Mimetic to Design a Gramicidin S Analogue: Conformational and Biological Evaluation. Chemistry 2014; 20:6713-20. [DOI: 10.1002/chem.201402190] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Indexed: 01/09/2023]
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9
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10
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Li Y, Bionda N, Yongye A, Geer P, Stawikowski M, Cudic P, Martinez K, Houghten RA. Dissociation of Antimicrobial and Hemolytic Activities of Gramicidin S through N-Methylation Modification. ChemMedChem 2013; 8:1865-72. [DOI: 10.1002/cmdc.201300232] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2013] [Indexed: 11/06/2022]
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11
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Tamaki M, Harada T, Fujinuma K, Takanashi K, Shindo M, Kimura M, Uchida Y. Polycationic gramicidin S analogues with both high antibiotic activity and very low hemolytic activity. Chem Pharm Bull (Tokyo) 2013; 60:1134-8. [PMID: 22976321 DOI: 10.1248/cpb.c12-00290] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The substitution of each constituent amino acid residue of gramicidin S (GS), cyclo(-Val(1,1')-Orn(2,2')-Leu(3,3')-D-Phe(4,4')-Pro(5,5')-)(2) with Lys residue indicated that each side chain structure of the constituent amino acid residues affect largely the antibiotic activity and hemolytic activity of GS. Further, the substitution of D-Phe(4,4') and Pro(5,5') residues with basic amino acid residues as a Lys residue results the high antibiotic activity and the very low hemolytic activity. Thus, we have found novel positions on the scaffold of GS at D-Phe(4,4') and Pro(5,5') residues whose modification will significantly increase the therapeutic index.
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Affiliation(s)
- Makoto Tamaki
- Department of Chemistry, Toho University, Funabashi, Chiba 274-8510, Japan
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12
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Sato K, Yamaguchi Y, Nagai U. Design and Synthesis of Gramicidin S Analogs with High Antibiotic Activity. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2013. [DOI: 10.1246/bcsj.20120166] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Kazuki Sato
- Department of Environmental Science, Fukuoka Women’s University
| | - Yoko Yamaguchi
- Department of Environmental Science, Fukuoka Women’s University
| | - Ukon Nagai
- Mitsubishi Kagaku Institute of Life Sciences
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13
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Tamaki M, Takanashi K, Harada T, Fujinuma K, Shindo M, Kimura M, Uchida Y. Novel cycloundecapeptides related to gramicidin S with both high antibiotic activity and low hemolytic activity. Chem Pharm Bull (Tokyo) 2012; 59:1481-4. [PMID: 22130370 DOI: 10.1248/cpb.59.1481] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
To find candidates with high antimicrobial and low hemolytic activities, many gramicidin S (GS) analogs of various ring sizes have been designed and synthesized. However, syntheses of antimicrobially active analogues of GS having a disordered symmetry structure from C(2) have almost never been reported, because the stable, amphiphilic β-sheet structure of GS with C(2) symmetry is considered essential for its strong antibacterial activity. In the present studies, novel thirteen cycloundecapeptides 1-13 related to GS were synthesized and examined. Among them, cyclo(-Va1(1)-Orn(2)-Leu(3)-D-Phe(4)-X(5)-Pro(6)-Val(7)-Orn(8)-Leu(9)-D-Phe(10)-Pro(11)-) (X=Lys (10), Orn (11), Arg (12) and Lys(Lys) (13)) resulted in high antibiotic activity against both Gram-positive and Gram-negative microorganisms tested. In addition, 11 showed low toxicity against sheep blood cells compared with that of GS. Further, circular dichroism (CD) spectra of 10-13 had a curve similar to each other, suggesting that the conformations of these analogues in methanol are similar to each other. However, CD spectra of 10-13 were different from that of GS in the 190-210 nm region. These results suggest that the presences of one added amino acid residue at position 5 of 10-13 might be partially effective through a structural change in the biological activity of 10-13. In addition, the structural modifications at position 5 lower the undesirable hemolytic activity and enhance the desirable antibiotic activity.
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Affiliation(s)
- Makoto Tamaki
- Department of Chemistry, Toho University, Funabashi, Chiba 274–8510, Japan
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14
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Fatty acyl-gramicidin S derivatives with both high antibiotic activity and low hemolytic activity. Bioorg Med Chem Lett 2012; 22:106-9. [DOI: 10.1016/j.bmcl.2011.11.062] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2011] [Accepted: 11/17/2011] [Indexed: 11/23/2022]
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15
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Yamada K, Kodaira M, Shinoda SS, Komagoe K, Oku H, Katakai R, Katsu T, Matsuo I. Structure–activity relationships of gramicidin S analogs containing (β-3-pyridyl)-α,β-dehydroalanine residues on membrane permeability. MEDCHEMCOMM 2011. [DOI: 10.1039/c1md00081k] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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16
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Tamaki M, Imazeki Y, Shirane A, Fujinuma K, Shindo M, Kimura M, Uchida Y. Novel gratisin derivatives with high antimicrobial activity and low hemolytic activity. Bioorg Med Chem Lett 2010; 21:440-3. [PMID: 21095123 DOI: 10.1016/j.bmcl.2010.10.122] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2010] [Revised: 10/14/2010] [Accepted: 10/25/2010] [Indexed: 10/18/2022]
Abstract
The substitution of each constituent amino acid residue of gratisin (GR) with Ala residue indicated that each side chain structure of the constituent amino acid residues affect largely the antibiotic and hemolytic activities of GR. Among them, the substitution of Pro residues at positions 5 and 5' with a cationic amino acid residues (Lys and Arg) results the high antibiotic activity and the low toxicity against human blood cells. Thus, we have found a novel position on the scaffold of GR at Pro(5,5') residues whose modification will significantly lower the unwanted hemolytic activity and enhance the desired antibiotic activity.
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Affiliation(s)
- Makoto Tamaki
- Department of Chemistry, Toho University, Funabashi, Chiba 274-8510, Japan.
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17
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Solanas C, de la Torre BG, Fernández-Reyes M, Santiveri CM, Jiménez MA, Rivas L, Jiménez AI, Andreu D, Cativiela C. Sequence inversion and phenylalanine surrogates at the beta-turn enhance the antibiotic activity of gramicidin S. J Med Chem 2010; 53:4119-29. [PMID: 20411945 DOI: 10.1021/jm100143f] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A series of gramicidin S (GS) analogues have been synthesized where the Phe (i + 1) and Pro (i + 2) residues of the beta-turn have been swapped while the respective chiralities (D-, L-) at each position are preserved, and Phe is replaced by surrogates with aromatic side chains of diverse size, orientation, and flexibility. Although most analogues preserve the beta-sheet structure, as assessed by NMR, their antibiotic activities turn out to be highly dependent on the bulkiness and spatial arrangement of the aromatic side chain. Significant increases in microbicidal potency against both Gram-positive and Gram-negative pathogens are observed for several analogues, resulting in improved therapeutic profiles. Data indicate that seemingly minor replacements at the GS beta-turn can have significant impact on antibiotic activity, highlighting this region as a hot spot for modulating GS plasticity and activity.
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Affiliation(s)
- Concepción Solanas
- Departamento de Química Orgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-CSIC, Zaragoza, Spain
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18
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Tamaki M, Sasaki I, Kokuno M, Shindo M, Kimura M, Uchida Y. Antimicrobially active cycloundecapeptides related to gramicidin S having a novel turn structure with cisd-Phe-Pro peptide bond. Org Biomol Chem 2010; 8:1791-7. [DOI: 10.1039/b922159j] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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19
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Tamaki M, Kokuno M, Sasaki I, Suzuki Y, Iwama M, Saegusa K, kikuchi Y, Shindo M, Kimura M, Uchida Y. Syntheses of low-hemolytic antimicrobial gratisin peptides. Bioorg Med Chem Lett 2009; 19:2856-9. [DOI: 10.1016/j.bmcl.2009.03.133] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2008] [Revised: 03/19/2009] [Accepted: 03/21/2009] [Indexed: 11/29/2022]
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20
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Solanas C, de la Torre BG, Fernández-Reyes M, Santiveri CM, Jiménez MA, Rivas L, Jiménez AI, Andreu D, Cativiela C. Therapeutic index of gramicidin S is strongly modulated by D-phenylalanine analogues at the beta-turn. J Med Chem 2009; 52:664-74. [PMID: 19132829 PMCID: PMC2659738 DOI: 10.1021/jm800886n] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Analogues of the cationic antimicrobial peptide gramicidin S (GS), cyclo(Val-Orn-Leu-D-Phe-Pro)2, with d-Phe residues replaced by different (restricted mobility, mostly) surrogates have been synthesized and used in SAR studies against several pathogenic bacteria. While all D-Phe substitutions are shown by NMR to preserve the overall beta-sheet conformation, they entail subtle structural alterations that lead to significant modifications in biological activity. In particular, the analogue incorporating D-Tic (1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid) shows a modest but significant increase in therapeutic index, mostly due to a sharp decrease in hemolytic effect. The fact that NMR data show a shortened distance between the D-Tic aromatic ring and the Orn delta-amino group may help explain the improved antibiotic profile of this analogue.
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Affiliation(s)
- Concepción Solanas
- Departamento de Química Orgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
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