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Lin W, Kampf N, Goldberg R, Driver MJ, Klein J. Poly-phosphocholinated Liposomes Form Stable Superlubrication Vectors. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:6048-6054. [PMID: 30991806 DOI: 10.1021/acs.langmuir.9b00610] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
We have prepared phosphatidylcholine (PC) vesicles (liposomes) incorporating a novel lipid/poly-phosphocholine conjugate. This both stabilizes the liposomes against aggregation (for example, during storage or when being delivered) and allows them to act as very efficient lubricating elements readily attaining superlubric performance (defined as coefficient of friction μ < 10-2) via hydration lubrication at physiological salt concentrations and pressures. In contrast, vesicles sterically protected by poly(ethylene glycol) chains (PEGylation), which is the general method of choice, while being equally stable to aggregation are much poorer lubricants under these conditions, which is attributed to the relatively poor hydration of the PEG. Our approach enables the use of PC liposomes as stable superlubrication vectors in potential biomedical applications.
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Affiliation(s)
- Weifeng Lin
- Department of Materials and Interfaces , Weizmann Institute of Science , Rehovot 76100 , Israel
| | - Nir Kampf
- Department of Materials and Interfaces , Weizmann Institute of Science , Rehovot 76100 , Israel
| | - Ronit Goldberg
- Department of Materials and Interfaces , Weizmann Institute of Science , Rehovot 76100 , Israel
| | - Michael J Driver
- Vertellus Biomaterials , Vertellus Specialties UK Ltd. , Basingstoke , Hampshire RG25 2PH , United Kingdom
| | - Jacob Klein
- Department of Materials and Interfaces , Weizmann Institute of Science , Rehovot 76100 , Israel
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2
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Zhongyu Li, Shan P, Li D, Zou X. Synthesis of Branched Poly(ethylene glycol) by an Acetal Protection Method. POLYMER SCIENCE SERIES B 2019. [DOI: 10.1134/s1560090419030059] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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3
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Tao L, Faig A, Uhrich KE. Liposomal stabilization using a sugar-based, PEGylated amphiphilic macromolecule. J Colloid Interface Sci 2014; 431:112-6. [PMID: 24996019 DOI: 10.1016/j.jcis.2014.06.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2014] [Revised: 06/02/2014] [Accepted: 06/02/2014] [Indexed: 11/27/2022]
Abstract
Liposomes are an important class of colloidal drug delivery systems, yet the clinical applications of conventional liposomes can be hampered by poor colloidal and biological stabilities. In this work, a sugar-based, PEGylated amphiphilic macromolecule (AM) was evaluated for its ability to stabilize dipalmitoyl phosphatidylcholine (DPPC)-based liposomes. Compared to unmodified liposomes, AM-stabilized liposomes exhibited enhanced colloidal stability, maintaining relatively constant particle sizes for 5 weeks without aggregation. AM-stabilized liposomes also showed significantly decreased membrane permeability, even in the presence of serum. Finally, AM-stabilized liposomes displayed improved biological stability, significantly inhibiting phagocytosis by macrophages. Overall, the effectiveness of AM to stabilize liposomes was comparable to a conventional stabilizing agent, PEG-modified phosphatidylethanolamine. Based upon these results, AM is a promising stabilizing agent for colloidal drug delivery applications and currently being optimized.
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Affiliation(s)
- Li Tao
- Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA
| | - Allison Faig
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA
| | - Kathryn E Uhrich
- Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA; Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA.
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4
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Miyamoto L, Watanabe M, Tomida Y, Kono M, Fujii S, Matsushita T, Hattori H, Ishizawa K, Nemoto H, Tsuchiya K. Acute oral toxicity evaluation of symmetrically branched glycerol trimer in ddY mice. J Toxicol Sci 2013. [PMID: 23208440 DOI: 10.2131/jts.37.1253] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Lipophilic-hydrophilic balance is a quite important determinant of pharmacokinetic properties of pharmaceuticals. Thus it is a key step to successfully manage lipophilic-hydrophilic balance in drug design. We have designed unique modular molecules, symmetrically branched oligoglycerols (BGL) as an alternative means to endow hydrophobic molecules with much hydrophilicity. We have succeeded in improving the water-solubility of several hydrophobic medicinal small molecules and thermal stability of artificial protein by covalent conjugation to BGL. We have also demonstrated that a representative BGL, symmetrically branched glycerol trimer (BGL003) does not exhibit significant cytotoxicity against human hepatocarcinoma HepG2 cells. However, there have been no reports suggesting whether BGL could be used in safety in vivo. Therefore, evaluation of acute oral toxicity of BGL003 in healthy mice was conducted. Here we demonstrate that an oral administration of BGL003 did not exhibit acute lethal toxicity up to 3,000 mg/kg. Body weight, food intake, blood glucose levels and weights of tissues were not affected by a short-term repetitive administration of increasing doses of BGL003. Biochemical indications related to hepatic disorders and tissue damage were unchanged, either. A single administration study revealed that 50% lethal dose of BGL003 should be more than 2,000 mg/kg. BGL003 will be safe and suitable approach to improve hydrophilicity of hydrophobic compounds.
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Affiliation(s)
- Licht Miyamoto
- Department of Medical Pharmacology, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan.
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5
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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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6
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Miyamoto L, Watanabe M, Kono M, Matsushita T, Hattori H, Ishizawa K, Nemoto H, Tsuchiya K. Cytotoxicity evaluation of symmetrically branched glycerol trimer in human hepatocellular carcinoma HepG2 cells. J Toxicol Sci 2013; 37:1059-63. [PMID: 23038013 DOI: 10.2131/jts.37.1059] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
An appropriate balance between lipophilicity and hydrophilicity is necessary for pharmaceuticals to achieve fine Absorption, Distribution, Metabolism and Excretion (ADME) properties including absorption and distribution, in particular. We have designed and proposed symmetrically branched oligoglycerols (BGL) as an alternative approach to improve the lipophilic-hydrophilic balance. We have previously shown that stability in circulation and water-solubility of such molecules as proteins, liposomes and hydrophobic compounds are much improved by conjugation to BGL. Albeit these successful applications of BGL, little was known whether BGL could be used in safety. Thus we conducted evaluation of the cytotoxicity of a representative BGL, symmetrically branched glycerol trimer (BGL003) in the cultured cells to clarify its biological safeness. Here we demonstrate that water-solubility of an extremely hydrophobic agent, fenofibrate was more than 2,000-fold improved just by conjugated with BGL003. BGL003 did not exhibit any significant cytotoxicity in human hepatocarcinoma HepG2 cells. Thus BGL003 should be safe and suitable strategy to endow hydrophobic molecules with much hydrophilicity.
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Affiliation(s)
- Licht Miyamoto
- Department of Medical Pharmacology, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan.
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7
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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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Michel* R, Gradzielski* M. Experimental aspects of colloidal interactions in mixed systems of liposome and inorganic nanoparticle and their applications. Int J Mol Sci 2012; 13:11610-11642. [PMID: 23109874 PMCID: PMC3472766 DOI: 10.3390/ijms130911610] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2012] [Revised: 09/01/2012] [Accepted: 09/06/2012] [Indexed: 12/03/2022] Open
Abstract
In the past few years, growing attention has been devoted to the study of the interactions taking place in mixed systems of phospholipid membranes (for instance in the form of vesicles) and hard nanoparticles (NPs). In this context liposomes (vesicles) may serve as versatile carriers or as a model system for biological membranes. Research on these systems has led to the observation of novel hybrid structures whose morphology strongly depends on the charge, composition and size of the interacting colloidal species as well as on the nature (pH, ionic strength) of their dispersing medium. A central role is played by the phase behaviour of phospholipid bilayers which have a tremendous influence on the liposome properties. Another central aspect is the incorporation of nanoparticles into vesicles, which is intimately linked to the conditions required for transporting a nanoparticle through a membrane. Herein, we review recent progress made on the investigations of the interactions in liposome/nanoparticle systems focusing on the particularly interesting structures that are formed in these hybrid systems as well as their potential applications.
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Affiliation(s)
- Raphael Michel*
- Stranski-Laboratorium für Physikalische und Theoretische Chemie, Institut für Chemie, Technische Universität Berlin, Berlin D-10623, Germany; E-Mails: (R.M.); (M.G.); Tel.: +49-30-314-22822 (R.M.); +49-30-314-24934 (M.G.); Fax: +49-30-314-26602 (M.G.)
| | - Michael Gradzielski*
- Stranski-Laboratorium für Physikalische und Theoretische Chemie, Institut für Chemie, Technische Universität Berlin, Berlin D-10623, Germany; E-Mails: (R.M.); (M.G.); Tel.: +49-30-314-22822 (R.M.); +49-30-314-24934 (M.G.); Fax: +49-30-314-26602 (M.G.)
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9
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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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10
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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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Zhang F, Shao W, Lin G. Development of Phosphatidylethanolamine Liposomes That Efficiently Retain Encapsulated Vinorelbine Bitartrate. J DISPER SCI TECHNOL 2012. [DOI: 10.1080/01932691.2011.567939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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12
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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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