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Seno Y, Matsushita T, Marhbubul HM, Ali MI, Mahmud MM, Mandai T, Nemoto H. Storable protection-free BGL reagents possessing a bioorthogonal functional group at apex. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.132690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Miyamoto L, Watanabe M, Taoka C, Kono M, Tomida Y, Matsushita T, Kamiya M, Hattori H, Ishizawa K, Abe S, Nemoto H, Tsuchiya K. A novel prodrug strategy for extremely hydrophobic agents: conjugation to symmetrically branched glycerol trimer improves pharmacological and pharmacokinetic properties of fenofibrate. Mol Pharm 2013; 10:2723-9. [PMID: 23672178 DOI: 10.1021/mp400133j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Management of a lipophilic-hydrophilic balance is a key element in drug design to achieve desirable pharmacokinetic characters. Therefore we have created unique modular molecules, symmetrically branched oligoglycerols (BGL), as an alternative way to endow hydrophobic molecules with sufficient hydrophilicity. We have successfully demonstrated amelioration of the water solubility and thermal stability of several hydrophobic agents by covalent conjugation to BGL so far. However, it has not been clarified whether the molecular modification by BGL also improves the pharmacological and/or pharmacokinetic properties indeed. Recently, we synthesized a novel BGL-prodrug derivative of fenofibrate, which is an antihyperlipidemic agent and one of the most hydrophobic medicinal compounds currently used clinically, by conjugating fenofibric acid to symmetrically branched glycerol trimer (BGL003), the simplest BGL. We have previously demonstrated that the hydrophilicity and water solubility of fenofibrate are improved more than 2000 times just by conjugation to the BGL003. To verify our hypothesis that the prodrug strategy with BGL should improve pharmacological efficacy and pharmacokinetic properties of extremely hydrophobic agents such as fenofibrate by the rise in hydrophilicity, we evaluated the BGL003-prodrug derivative of fenofibrate (FF-BGL) using rodent models. Here we demonstrate that the lipid-lowering effects of fenofibrate are much potentiated by chemical conjugation to BGL003 without exhibiting significant toxicity. Plasma concentration of fenofibric acid, an active metabolite of fenofibrate, after single oral administration of FF-BGL was more than 3 times higher than that of fenofibrate, in accordance. In fasting rats, plasma concentration of fenofibric acid after fenofibrate administration was curtailed into less than half of that in ad libitum-fed rats, while FF-BGL showed about the same plasma level even in the starving rats. This is the first report showing that BGL-prodrug improves pharmacological and pharmacokinetic properties as well as hydrophilicity of highly hydrophobic compounds. Furthermore, prodrug strategy using BGL suggests the possibility of diminishing the food-drug interaction effects, which should be advantageous for promoting drug compliance. BGL will be a suitable prodrug strategy to ameliorate physical, pharmacological, and pharmacokinetic characteristics of extremely hydrophobic compounds.
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Affiliation(s)
- Licht Miyamoto
- Laboratory of Pharmacology and Physiological Sciences, Frontier Laboratory for Pharmaceutical Sciences, Institute of Health Biosciences, The University of Tokushima Graduate School, 1-78-1 Sho-machi, Tokushima 770-8505, Japan
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Synthesis of highly water-soluble fibrate derivatives via BGLation. Bioorg Med Chem Lett 2012; 22:6425-8. [DOI: 10.1016/j.bmcl.2012.08.057] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2012] [Revised: 07/18/2012] [Accepted: 08/16/2012] [Indexed: 11/18/2022]
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Nemoto H, Katagiri A, Kamiya M, Matsushita T, Hattori H, Matsumura K, Itou T, Kawamura T, Kita T, Nishida H, Arakaki N. Synthesis and evaluation of water-soluble resveratrol and piceatannol via BGLation. Bioorg Med Chem Lett 2012; 22:5051-4. [DOI: 10.1016/j.bmcl.2012.06.019] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2012] [Revised: 05/31/2012] [Accepted: 06/04/2012] [Indexed: 11/24/2022]
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Nemoto H, Katagiri A, Kamiya M, Kawamura T, Matsushita T, Matsumura K, Itou T, Hattori H, Tamaki M, Ishizawa K, Miyamoto L, Abe S, Tsuchiya K. Synthesis of paclitaxel-BGL conjugates. Bioorg Med Chem 2012; 20:5559-67. [PMID: 22892212 DOI: 10.1016/j.bmc.2012.07.031] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2012] [Revised: 07/14/2012] [Accepted: 07/14/2012] [Indexed: 11/17/2022]
Abstract
Four kinds of symmetrically branched oligoglyceryl trimeric (BGL003)-paclitaxel conjugates and a corresponding heptameric (BGL007) conjugate were synthesized. Molecular weights of all the compounds were less than two times that of paclitaxel. The anti-tumor activity of the most water-soluble BGL003 conjugate was examined and found to be preserved in spite of the chemical modification that is displacement of the N3'-debenzoyl residue with the BGL003 succinyl residue.
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Affiliation(s)
- Hisao Nemoto
- Department of Pharmaceutical Chemistry, Institute of Health Biosciences, Graduate School of The University of Tokushima, 1-78, Sho-machi, Tokushima 770-8505, Japan.
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Ishihara A, Yamauchi M, Tsuchiya T, Mimura Y, Tomoda Y, Katagiri A, Kamiya M, Nemoto H, Suzawa T, Yamasaki M. A Novel Liposome Surface Modification Agent that Prolongs Blood Circulation and Retains Surface Ligand Reactivity. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 23:2055-68. [DOI: 10.1163/092050611x605933] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Atsushi Ishihara
- a Drug Formulation Research and Development Laboratories, Production Division, Kyowa Hakko Kirin Co., Ltd. , 1188 Shimotogari, Nagaizumi-cho, Sunto-gun , Shizuoka , 411-8731 , Japan
| | - Masahiro Yamauchi
- a Drug Formulation Research and Development Laboratories, Production Division, Kyowa Hakko Kirin Co., Ltd. , 1188 Shimotogari, Nagaizumi-cho, Sunto-gun , Shizuoka , 411-8731 , Japan
| | - Tomoko Tsuchiya
- a Drug Formulation Research and Development Laboratories, Production Division, Kyowa Hakko Kirin Co., Ltd. , 1188 Shimotogari, Nagaizumi-cho, Sunto-gun , Shizuoka , 411-8731 , Japan
| | - Yukiteru Mimura
- a Drug Formulation Research and Development Laboratories, Production Division, Kyowa Hakko Kirin Co., Ltd. , 1188 Shimotogari, Nagaizumi-cho, Sunto-gun , Shizuoka , 411-8731 , Japan
| | - Yutaka Tomoda
- a Drug Formulation Research and Development Laboratories, Production Division, Kyowa Hakko Kirin Co., Ltd. , 1188 Shimotogari, Nagaizumi-cho, Sunto-gun , Shizuoka , 411-8731 , Japan
| | - Ayato Katagiri
- b Department of Pharmaceutical Chemistry , Institute of Health Biosciences, Graduate School of the University of Tokushima , 1-78-1 Sho-machi, Tokushima , Tokushima , 770-8505 , Japan
| | - Masaaki Kamiya
- b Department of Pharmaceutical Chemistry , Institute of Health Biosciences, Graduate School of the University of Tokushima , 1-78-1 Sho-machi, Tokushima , Tokushima , 770-8505 , Japan
| | - Hisao Nemoto
- b Department of Pharmaceutical Chemistry , Institute of Health Biosciences, Graduate School of the University of Tokushima , 1-78-1 Sho-machi, Tokushima , Tokushima , 770-8505 , Japan
| | - Toshiyuki Suzawa
- c Bio Process R&D Laboratories, Production Division, Kyowa Hakko Kirin Co., Ltd. , 100-1, Hagiwara-machi, Takasaki , Gunma , 370-0013 , Japan
| | - Motoo Yamasaki
- d Tokyo Research Park, Research Division, Kyowa Hakko Kirin Co., Ltd. , 3-6-6 Asahi-machi, Machida , Tokyo , 194-8533 , Japan
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Nemoto H, Ishihara A, Araki T, Katagiri A, Kamiya M, Matsushita T, Hattori H, Mimura Y, Tomoda Y, Yamasaki M. Improved performance by replacing iminodiacetic residues with glyceryl residues in symmetrically branched oligoglycerols. Bioorg Med Chem Lett 2011; 21:4724-7. [DOI: 10.1016/j.bmcl.2011.06.064] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2011] [Revised: 06/09/2011] [Accepted: 06/16/2011] [Indexed: 11/25/2022]
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Ishihara A, Yamauchi M, Kusano H, Mimura Y, Nakakura M, Kamiya M, Katagiri A, Kawano M, Nemoto H, Suzawa T, Yamasaki M. Preparation and properties of branched oligoglycerol modifiers for stabilization of liposomes. Int J Pharm 2010; 391:237-43. [PMID: 20298767 DOI: 10.1016/j.ijpharm.2010.03.031] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2009] [Revised: 02/21/2010] [Accepted: 03/10/2010] [Indexed: 11/17/2022]
Abstract
We examined the effect on drug delivery of liposomes with surfaces that were modified with branched oligoglycerols (BGLs) and explored possible formulation advantages to increase drug exposure. BGL012 is a branched oligoglycerol derivative with a cascade-like structure of 12 glycerol units, characterized as a widely spread structure in aqueous solution. We prepared BGL-phospholipid derivatives (BGL-PEs), including BGL012, by coupling 1,2-distearoylphosphatidylethanolamine to BGLs. BGL012-PE modification of the liposomes (BGL012L) achieved a long circulation time after intravenous injection in rats. The circulation lifetime of BGL012L was almost the same as that of polyethylene glycol (PEG)-modified liposomes. The surface of BGL012L induced the formation of a fixed aqueous layer and reduced protein adsorption on the liposome surface, without strong interference with the binding reaction on the liposome. Thus, the newly synthesized branched oligoglycerol derivatives are considered to have useful hydrophilic and physical properties for modifying the liposome surface to increase drug exposure.
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Affiliation(s)
- Atsushi Ishihara
- Drug Formulation Research and Development Laboratories, Production Division, Kyowa Hakko Kirin Co, Ltd, 1188 Shimotogari, Nagaizumi-cho, Sunto-gun, Shizuoka 411-8731, Japan
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Mangold C, Wurm F, Obermeier B, Frey H. Hetero-Multifunctional Poly(ethylene glycol) Copolymers with Multiple Hydroxyl Groups and a Single Terminal Functionality. Macromol Rapid Commun 2009; 31:258-64. [PMID: 21590899 DOI: 10.1002/marc.200900472] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2009] [Revised: 09/04/2009] [Indexed: 11/07/2022]
Abstract
Hetero-multifunctional poly(ethylene glycol-co-glycerol) random copolymers with multiple hydroxyl functionalities and a single terminal functionality have been prepared by copolymerization of ethylene oxide (EO) and ethoxy ethyl glycidyl ether (EEGE) with the use of a suitable initiator, introducing a protected amino group or a double bond, respectively. Acidic deprotection was used for removal of the acetal protecting groups in the chain, and the terminal amino group was regenerated by catalytic hydrogenation. A series of copolymers with narrow polydispersity was obtained, varying comonomer fractions from 3 to 67% and molecular weights in the range of 5 000-32 000 g · mol(-1) (1.05 < $\overline M _{\rm w} /\overline M _{\rm n}$ < 1.25). Molecular and thermal characterization was carried out using (1) H- and (13) C NMR, SEC and differential scanning calorimetry (DSC).
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Affiliation(s)
- Christine Mangold
- Institute of Organic Chemistry, Johannes-Gutenberg University Mainz, Duesbergweg 10-14, D-55099 Mainz, Germany
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Wurm F, Klos J, Räder HJ, Frey H. Synthesis and Noncovalent Protein Conjugation of Linear-Hyperbranched PEG-Poly(glycerol) α,ωn-Telechelics. J Am Chem Soc 2009; 131:7954-5. [DOI: 10.1021/ja9019148] [Citation(s) in RCA: 105] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Frederik Wurm
- Institute of Organic Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55099 Mainz, Germany, and Max-Planck-Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Johannes Klos
- Institute of Organic Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55099 Mainz, Germany, and Max-Planck-Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Hans Joachim Räder
- Institute of Organic Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55099 Mainz, Germany, and Max-Planck-Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Holger Frey
- Institute of Organic Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55099 Mainz, Germany, and Max-Planck-Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
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Gonnelli M, Strambini GB. No effect of covalently linked poly(ethylene glycol) chains on protein internal dynamics. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2008; 1794:569-76. [PMID: 19150514 DOI: 10.1016/j.bbapap.2008.12.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2008] [Revised: 11/10/2008] [Accepted: 12/08/2008] [Indexed: 10/21/2022]
Abstract
Poly(ethylene glycol) or PEG is a hydrophilic polymer that covalently linked to therapeutical proteins may significantly increase their pharmacological properties. Despite the extensive production of PEG-conjugated proteins the effects of the polymer on the protein structure and dynamics is poorly understood, making the production of active biomaterials a largely unpredictable process. The present investigation examines the effects of 5 k and 20 k PEG on the internal flexibility of Ribonuclease T1, the mutant C112S of azurin from Pseudomonas aeruginosa, alcohol dehydrogenase and alkaline phosphatase, native and Zn-depleted. These systems encompass structural domains that range from rather superficial, flexible sites to deeply buried, rigid cores. The approach is based on three sensitive parameters related to the phosphorescence emission of internal Trp residues, namely, the intrinsic room-temperature phosphorescence lifetime (tau(0)) that reports on the local flexibility of the protein matrix around the chromophore and the bimolecular rate constant (k(q)) for the quenching of phosphorescence by O(2) and by acrylamide in solution, which are related to the diffusion of these solutes through the protein fold. The results obtained by these three independent, intrinsic probes of protein structure-dynamics concur that mono-PEGylation does not detectably perturb the conformation and dynamics of the protein native fold, over a wide temperature range. The implication is that protein motions are essentially not coupled to the polymer and that adverse effects of chemical modification on biological function are presumably owed to steric hindrance by PEG units blocking the access to sites critical for molecular recognition.
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Affiliation(s)
- Margherita Gonnelli
- Istituto di Biofisica, Consiglio Nazionale delle Ricerche, via Moruzzi 1, 56124 Pisa, Italy
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