1
|
Hu X, Zhou C, Wang L, Liu Q, Ma Y, Tang Y, Wang X, Chen K, Wang X, Liu Y. Procedurally Targeted Delivery of Antitumor Drugs Using FAPα-Responsive TPGS Dimer-Based Flower-like Polymeric Micelles. ACS APPLIED BIO MATERIALS 2023; 6:4358-4371. [PMID: 37702706 DOI: 10.1021/acsabm.3c00543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/14/2023]
Abstract
To overcome the intestinal epithelium barrier and achieve a better antitumor effect, the procedurally targeting flower-like nanomicelles for oral delivery of antitumor drugs were designed based on FAPα-responsive TPGS1000 dimer (TPGS-Gly-Pro-TPGS) and L-carnitine linked poly(2-ethyl-2-oxazoline)-b-poly(D, l-lactide) (Car-PEOz-b-PLA). As expected, compared with unmodified polymeric micelles (TT-PMs) composed of TPGS-Gly-Pro-TPGS, L-carnitine conjugated polymeric micelles (CTT-PMs) formed from both TPGS-Gly-Pro-TPGS and Car-PEOz-b-PLA with favorable stability in simulated gastrointestinal fluid and FAPα-dependent release capability exhibited remarkably enhanced cellular uptake and transmembrane transport through OCTN2 mediation confirmed by fluorescence immunoassay, which was intuitively evidenced by stronger fluorescence within epithelial cells, and the basal side of small intestinal epithelium of mice being given intragastric administration of DiI-labeled micelles. The transport of CTT-PMs across the intestinal epithelium in an intact form was mediated by clathrin along the intracellular transport pathway of endosome-lysosome-ER-Golgi apparatus. Furthermore, both the increased uptake by FAPα-positive U87MG cells and unchangeable uptake by FAPα-negative C6 cells for coumarin-6 (C-6)/CTT-PMs compared with C-6/TT-PMs evidenced the targeting ability of CTT-PMs to FAPα-positive tumor cells. Both OCTN2-mediation and FAPα-responsiveness were beneficial for polymeric micelles to improve the delivery and therapeutic efficiency of antitumor agents, which was further supported by the remarkable enhancement in in vivo antitumor efficacy via promoting apoptosis of tumor cells for paclitaxel (PTX)-loaded CTT-PMs (PTX/CTT-PMs) with low toxicity compared with PTX/TT-PMs. Our findings offered an alternative design strategy for procedurally targeted delivery of chemotherapeutics by an oral route.
Collapse
Affiliation(s)
- Xinping Hu
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Chuhang Zhou
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Leqi Wang
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Qi Liu
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Yining Ma
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Yingwei Tang
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Xiaoxiao Wang
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Kanghao Chen
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Xinyu Wang
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Yan Liu
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| |
Collapse
|
2
|
Muacevic A, Adler JR. Advances in Polysaccharide-Based Oral Colon-Targeted Delivery Systems: The Journey So Far and the Road Ahead. Cureus 2023; 15:e33636. [PMID: 36788847 PMCID: PMC9912363 DOI: 10.7759/cureus.33636] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/11/2023] [Indexed: 01/12/2023] Open
Abstract
Various colon-targeted oral delivery systems have been explored so far to treat colorectal diseases, including timed-release systems, prodrugs, pH-based polymer coatings, and microflora-triggered systems. Among them, the microbially triggered system has gained attention. Among various oral colon-targeted delivery systems discussed, the polysaccharide-based colon-targeted delivery system has been found to be quite promising as polysaccharides remain unaffected by gastric as well as upper intestine milieu and are only digested by colonic bacteria upon reaching the colon. The major bottleneck associated with this delivery is that non-suitability of this system during the diseased state due to decrease in bacterial count at that time. This causes the failure of delivery system to release the drug even at colonic site as the polysaccharide matrix/coat cannot be digested properly due to lack of bacteria. The co-administration of probiotics is reported to compensate for the bacterial loss besides facilitating site-specific release. However, this research is also limited at the preclinical level. Hence, efforts are required to make this technology scalable and clinically applicable. This article entails in detail various oral colon-targeted delivery systems prepared so far, as well as the limitations and benefits of polysaccharide-based oral colon-targeted delivery systems.
Collapse
|
3
|
Tewari AK, Upadhyay SC, Kumar M, Pathak K, Kaushik D, Verma R, Bhatt S, Massoud EES, Rahman MH, Cavalu S. Insights on Development Aspects of Polymeric Nanocarriers: The Translation from Bench to Clinic. Polymers (Basel) 2022; 14:polym14173545. [PMID: 36080620 PMCID: PMC9459741 DOI: 10.3390/polym14173545] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 08/24/2022] [Accepted: 08/25/2022] [Indexed: 02/06/2023] Open
Abstract
Scientists are focusing immense attention on polymeric nanocarriers as a prominent delivery vehicle for several biomedical applications including diagnosis of diseases, delivery of therapeutic agents, peptides, proteins, genes, siRNA, and vaccines due to their exciting physicochemical characteristics which circumvent degradation of unstable drugs, reduce toxic side effects through controlled release, and improve bioavailability. Polymers-based nanocarriers offer numerous benefits for in vivo drug delivery such as biocompatibility, biodegradability, non-immunogenicity, active drug targeting via surface modification, and controlled release due to their pH—and thermosensitive characteristics. Despite their potential for medicinal use, regulatory approval has been achieved for just a few. In this review, we discuss the historical development of polymers starting from their initial design to their evolution as nanocarriers for therapeutic delivery of drugs, peptides, and genes. The review article also expresses the applications of polymeric nanocarriers in the pharmaceutical and medical industry with a special emphasis on oral, ocular, parenteral, and topical application of drugs, peptides, and genes over the last two decades. The review further examines the practical, regulatory, and clinical considerations of the polymeric nanocarriers, their safety issues, and directinos for future research.
Collapse
Affiliation(s)
- Akhilesh Kumar Tewari
- M.M. College of Pharmacy, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala 133207, Haryana, India
| | - Satish Chandra Upadhyay
- Formulation Research and Development, Mankind Research Centre, Manesar, Gurugram 122050, Haryana, India
| | - Manish Kumar
- M.M. College of Pharmacy, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala 133207, Haryana, India
- Correspondence: (M.K.); (D.K.); (S.C.)
| | - Kamla Pathak
- Faculty of Pharmacy, Uttar Pradesh University of Medical Sciences, Saifai, Etawah 206130, Uttar Pradesh, India
| | - Deepak Kaushik
- Department of Pharmaceutical Sciences, Maharshi Dayanand University, Rohtak 124001, Haryana, India
- Correspondence: (M.K.); (D.K.); (S.C.)
| | - Ravinder Verma
- Department of Pharmacy, G.D. Goenka University, Sohna Road, Gurugram 122103, Haryana, India
| | - Shailendra Bhatt
- Department of Pharmacy, G.D. Goenka University, Sohna Road, Gurugram 122103, Haryana, India
| | - Ehab El Sayed Massoud
- Biology Department, Faculty of Science and Arts in Dahran Aljnoub, King Khalid University, Abha 62529, Saudi Arabia
- Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha 61413, Saudi Arabia
- Agriculture Research Centre, Soil, Water and Environment Research Institute, Giza 3725004, Egypt
| | - Md. Habibur Rahman
- Department of Global Medical Science, Wonju College of Medicine, Yonsei University, Wonju 26426, Gangwon-do, Korea
| | - Simona Cavalu
- Faculty of Medicine and Pharmacy, University of Oradea, P-ta 1 Decembrie 10, 410087 Oradea, Romania
- Correspondence: (M.K.); (D.K.); (S.C.)
| |
Collapse
|
4
|
Chu Y, Sun T, Xie Z, Sun K, Jiang C. Physicochemical Characterization and Pharmacological Evaluation of Novel Propofol Micelles with Low-Lipid and Low-Free Propofol. Pharmaceutics 2022; 14:pharmaceutics14020414. [PMID: 35214146 PMCID: PMC8880186 DOI: 10.3390/pharmaceutics14020414] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 01/29/2022] [Accepted: 02/04/2022] [Indexed: 11/16/2022] Open
Abstract
We developed safe and stable mixed polymeric micelles with low lipids and free propofol for intravenous administration, to overcome the biological barrier of the reticuloendothelial system (RES), reduce pain upon injection, and complications of marketed propofol formulation. The propofol-mixed micelles were composed of distearoyl-phosphatidylethanolamine-methoxy-poly (ethylene glycol 2000) (DSPE mPEG2k) and Solutol HS 15 and were optimized using Box Behnken design (BBD). The optimized formulation was evaluated for globule size, zeta potential, loading content, encapsulation efficiency, pain on injection, histological evaluation, hemolysis test, in vivo anesthetic action, and pharmacokinetics, in comparison to the commercialized emulsion Diprivan. The optimized micelle formulation displayed homogenous particle sizes, and the free drug concentration in the micelles was 60.9% lower than that of Diprivan. The paw-lick study demonstrated that propofol-mixed micelles significantly reduced pain symptoms. The anesthetic action of the mixed micelles were similar with the Diprivan. Therefore, we conclude that the novel propofol-mixed micelle reduces injection-site pain and the risk of hyperlipidemia due to the low content of free propofol and low-lipid constituent. It may be a more promising clinical alternative for anesthetic.
Collapse
Affiliation(s)
| | - Tao Sun
- Correspondence: (T.S.); (K.S.); (C.J.)
| | | | - Keyu Sun
- Correspondence: (T.S.); (K.S.); (C.J.)
| | | |
Collapse
|
5
|
Pharmacokinetic and Tissue Distribution of Orally Administered Cyclosporine A-Loaded poly(ethylene oxide)-block-Poly(ε-caprolactone) Micelles versus Sandimmune ® in Rats. Pharm Res 2021; 38:51-65. [PMID: 33559046 DOI: 10.1007/s11095-021-02990-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 11/09/2020] [Indexed: 10/22/2022]
Abstract
PURPOSE We have previously reported on a polymeric micellar formulation of Cyclosporine A (CyA) based on poly(ethylene oxide)-block-poly(ε-caprolactone) (PEO5K-b-PCL13K) capable of changing drug biodistribution and pharmacokinetic profile following intravenous administration. The objective of the present study was to explore the potential of this formulation in changing the tissue distribution and pharmacokinetics of the encapsulated CyA following oral administration making comparisons with Sandimmune®. METHODS The in vitro CyA release and stability CyA-loaded PEO-b-PCL micelles (CyA-micelles) were evaluated in biorelevant media. The pharmacokinetics and tissue distribution of orally administered CyA-micelles or Sandimmune® and tissue distribution of traceable Cyanine-5.5 (Cy5.5)-conjugated PEO-b-PCL micelles were then investigated in healthy rats. RESULTS CyA-micelles showed around 60-70% CyA release in simulated intestinal and gastric fluids within 24 h, while Sandimmune® released its entire CyA content in the simulated intestinal fluid. CyA-micelles and Sandimmune® showed similar pharmacokinetics, but different tissue distribution profile in rats. In particular, the calculated AUC for CyA-micelles was higher in liver, comparable in heart, and lower in spleen, lungs, and kidneys when compared to that for Sandimmune®. CONCLUSIONS The results point to the influence of excipients in Sandimmune® on CyA disposition and more inert nature of PEO-b-PCL micelles in defining CyA biological interactions.
Collapse
|
6
|
Acid-resistant ROS-responsive hyperbranched polythioether micelles for ulcerative colitis therapy. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2020.03.039] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
|
7
|
Yoon MS, Lee YJ, Park CW, Hong JT, Baek DJ, Shin DH. In vitro anticancer evaluation of micelles containing N-(4-(2-((4-methoxybenzyl)amino)ethyl)phenyl)heptanamide, an analogue of fingolimod. Arch Pharm Res 2020; 43:1046-1055. [PMID: 33111965 DOI: 10.1007/s12272-020-01276-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Accepted: 10/21/2020] [Indexed: 10/23/2022]
Abstract
Fingolimod has been evaluated for use as an anticancer agent. However, many steps are required to synthesize fingolimod because of its intricate structure. A fingolimod analogue, N-(4-(2-((4-methoxybenzyl)amino)ethyl)phenyl)heptanamide (MPH), also has anti-cancer effects and is easier to synthesize but is poorly soluble in water. To compensate for its poor water solubility, MPH-loaded polymeric micelles were prepared by thin film hydration method using various polymers and the physicochemical properties of the MPH-loaded micelles such as particle size, drug-loading (DL, %), and encapsulation efficiency (EE, %) were evaluated. A storage stability test was conducted to select the final formulation and the release profile of the MPH-loaded micelles was confirmed by in vitro release assay. MPH-loaded mPEG-b-PLA micelles were selected for further testing based on their stability and physicochemical properties; they were stable for stable for 14 days at 4 °C and 25 °C and for 7 days at 37 °C. They showed anti-cancer efficacy against both A549 and U87 cancer cells. Encapsulation of MPH in polymeric micelles did not decrease the in vitro cytotoxicity of MPH. The findings of this study lay the groundwork for future formulations that enable the effective and stable delivery of poorly water-soluble agents.
Collapse
Affiliation(s)
- Moon Sup Yoon
- College of Pharmacy, Chungbuk National University, Osongsaengmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju, 28160, Republic of Korea
| | - Yu Jin Lee
- College of Pharmacy, Chungbuk National University, Osongsaengmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju, 28160, Republic of Korea
| | - Chun-Woong Park
- College of Pharmacy, Chungbuk National University, Osongsaengmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju, 28160, Republic of Korea
| | - Jin Tae Hong
- College of Pharmacy, Chungbuk National University, Osongsaengmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju, 28160, Republic of Korea
| | - Dong Jae Baek
- College of Pharmacy and Natural Medicine Research Institute, Mokpo National University, Jeonnam, 58554, Republic of Korea
| | - Dae Hwan Shin
- College of Pharmacy, Chungbuk National University, Osongsaengmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju, 28160, Republic of Korea.
| |
Collapse
|
8
|
He C, Jin Y, Deng Y, Zou Y, Han S, Zhou C, Zhou Y, Liu Y. Efficient Oral Delivery of Poorly Water-Soluble Drugs Using Carnitine/Organic Cation Transporter 2-Mediated Polymeric Micelles. ACS Biomater Sci Eng 2020; 6:2146-2158. [PMID: 33455346 DOI: 10.1021/acsbiomaterials.0c00020] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The intestine epithelium is considered to be the most critical obstacle for nanoparticles for oral delivery of water-insoluble and poorly absorbed drugs. Based on the specific transporters located on the apical membrane of the intestinal epithelium, the carnitine-conjugated polymeric micelles targeting to the carnitine/organic cation transporter 2 (OCTN2) were developed by combining carnitine-conjugated poly(2-ethyl-2-oxazoline)-poly(d,l-lactide) with monomethoxy poly(ethylene-glycol)-poly(d,l-lactide). The carnitine-conjugated micelles with favorable stability in gastrointestinal fluid were validated to remarkably increase the cellular internalization and transcellular transport, while these were not the cases in the presence of free carnitine. These were further confirmed by more distribution of the micelles within epithelial cells, on the apical and basolateral side of the epithelium in mice. Additionally, identification of the carnitine-conjugated micelles by OCTN2 was detected to facilitate cellular uptake of the micelles via fluorescence immunoassay. Both clathrin and caveolae/lipid rafts pathways mediated endocytosis and transcellular transport of the carnitine-conjugated micelles, implying the enrichment of endocytic and transcellular transport pathway compared with that of carnitine-unconjugated micelles. Further, the intracellular trafficking process of the carnitine-conjugated micelles was tracked under confocal laser scanning microscopy, which involved in intracellular compartments such as late endosomes, lysosomes, endoplasmic reticulum, and Golgi apparatus as well. In conclusion, the current study provided an efficient strategy to facilitate the oral absorption of water-insoluble and poorly absorbed agents using intestinal transporter-mediated polymeric micelles.
Collapse
Affiliation(s)
- Chuyu He
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 1001 91, China
| | - Yao Jin
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 1001 91, China
| | - Yunqiang Deng
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 1001 91, China
| | - Yang Zou
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 1001 91, China
| | - Shidi Han
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 1001 91, China
| | - Chuhang Zhou
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 1001 91, China
| | - Yuanhang Zhou
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 1001 91, China
| | - Yan Liu
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 1001 91, China
| |
Collapse
|
9
|
Terreni E, Chetoni P, Tampucci S, Burgalassi S, Al-kinani AA, Alany RG, Monti D. Assembling Surfactants-Mucoadhesive Polymer Nanomicelles (ASMP-Nano) for Ocular Delivery of Cyclosporine-A. Pharmaceutics 2020; 12:E253. [PMID: 32168973 PMCID: PMC7150936 DOI: 10.3390/pharmaceutics12030253] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 03/06/2020] [Accepted: 03/09/2020] [Indexed: 02/06/2023] Open
Abstract
The physiological protective mechanisms of the eye reduce the bioavailability of topically administered drugs above all for those with high molecular weight and /or lipophilic characteristics, such as Cyclosporine A (CyA). The combined strategy based on the association of nanomicelles and mucoadhesive polymer seems promising since a limited number of commercial products containing CyA have been recently approved. The scope of this investigation was the design of Assembling Surfactants-Mucoadhesive Polymer Nanomicelles (ASMP-Nano), based on a binary system of two surfactants in combination with hyaluronic acid, and their biopharmaceutical evaluation. The optimisation of the ASMP-Nano in term of the amount of surfactants, CyA-loading and size determined the selection of the clear and stable Nano1HAB-CyA formulation containing 0.105% w/w CyA loaded-nanomicelles with a size of 14.41 nm. The nanostructured system had a protective effect towards epithelial corneal cells with a cell viability of more than 80%. It interacted with cellular barriers favouring the uptake and the accumulation of CyA into the cells as evidenced by fluorescent probe distribution, by hindering CyA permeation through reconstituted corneal epithelial tissue. In pharmacokinetics study on rabbits, the nanomicellar carrier prolonged the CyA retention time in the precorneal area mainly in presence of hyaluronic acid (HA), a mucoadhesive polymer.
Collapse
Affiliation(s)
- Eleonora Terreni
- Department of Pharmacy, University of Pisa, 56126 Pisa, Italy; (E.T.); (P.C.); (S.T.); (S.B.)
| | - Patrizia Chetoni
- Department of Pharmacy, University of Pisa, 56126 Pisa, Italy; (E.T.); (P.C.); (S.T.); (S.B.)
- Inter-University Center for the Promotion of the 3Rs Principles in Teaching & Research (Centro 3R), 56126 Pisa, Italy
| | - Silvia Tampucci
- Department of Pharmacy, University of Pisa, 56126 Pisa, Italy; (E.T.); (P.C.); (S.T.); (S.B.)
- Inter-University Center for the Promotion of the 3Rs Principles in Teaching & Research (Centro 3R), 56126 Pisa, Italy
| | - Susi Burgalassi
- Department of Pharmacy, University of Pisa, 56126 Pisa, Italy; (E.T.); (P.C.); (S.T.); (S.B.)
- Inter-University Center for the Promotion of the 3Rs Principles in Teaching & Research (Centro 3R), 56126 Pisa, Italy
| | - Ali Athab Al-kinani
- Drug Discovery, Delivery and Patient Care (DDDPC) Theme, School of Life Sciences, Pharmacy and Chemistry, Kingston University London, Kingston upon Thames, London KT1 2EE, UK; (A.A.A.-k.); (R.G.A.)
| | - Raid G. Alany
- Drug Discovery, Delivery and Patient Care (DDDPC) Theme, School of Life Sciences, Pharmacy and Chemistry, Kingston University London, Kingston upon Thames, London KT1 2EE, UK; (A.A.A.-k.); (R.G.A.)
- School of Pharmacy, The University of Auckland, Auckland 1010, New Zealand
| | - Daniela Monti
- Department of Pharmacy, University of Pisa, 56126 Pisa, Italy; (E.T.); (P.C.); (S.T.); (S.B.)
- Inter-University Center for the Promotion of the 3Rs Principles in Teaching & Research (Centro 3R), 56126 Pisa, Italy
| |
Collapse
|
10
|
A Mixed Micellar Formulation for the Transdermal Delivery of an Indirubin Analog. Pharmaceutics 2020; 12:pharmaceutics12020175. [PMID: 32093032 PMCID: PMC7076637 DOI: 10.3390/pharmaceutics12020175] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 02/11/2020] [Accepted: 02/12/2020] [Indexed: 12/05/2022] Open
Abstract
Indirubin is an active component of Dang Gui Long Hui Wan, which has been used in traditional Chinese medicine to treat inflammatory diseases as well as for the prevention and treatment of human cancer, such as chronic myeloid leukemia. The therapeutic effects of indirubin analogs have been underestimated due to its poor water solubility and low bioavailability. To improve the solubility and bioavailability of indirubin analogs, we prepared a mixed micellar formulation with Kolliphor® EL and Tween 80 as surfactants, and PEG 400 as a co-surfactant, followed by complexation with (2-hydroxyproply)-β-cyclodextrin at appropriate ratios. Overall, improving the solubility and skin penetration of indirubin analogs can increase clinical efficacy and provide maximum flux through the skin.
Collapse
|
11
|
Jin Y, Liu Q, Zhou C, Hu X, Wang L, Han S, Zhou Y, Liu Y. Intestinal oligopeptide transporter PepT1-targeted polymeric micelles for further enhancing the oral absorption of water-insoluble agents. NANOSCALE 2019; 11:21433-21448. [PMID: 31681915 DOI: 10.1039/c9nr07029j] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The intestinal epithelium is the main barrier for nanocarriers to orally deliver poorly water-soluble and absorbed agents. To further improve the transmembrane transport efficiency of polymeric micelles, intestinal oligopeptide transporter PepT1-targeted polymeric micelles were fabricated by Gly-Sar-conjugated poly(ethylene glycol)-poly(d,l-lactic acid). The functionalized polymeric micelles with about 40 nm diameter, uniform spherical morphology and favorable cytocompatibility with Caco-2 cells were demonstrated to distinctly enhance the cellular uptake and transmembrane transport of the loaded agents. The results of intestinal absorption strongly evidenced the higher accumulation of the micelles inside the epithelial cells, at the apical and basolateral sides of the epithelium within the villi in mice. Furthermore, the interaction of Gly-Sar decorated polymeric micelles with PepT1 was explored to promote the internalization of the micelles through fluorescence immunoassay, and the PepT1 level on the membrane of Caco-2 cells treated with the micelles appeared to change in a distinctly time-dependent manner. Both clathrin- and caveolae-mediated pathways were involved in the transcellular transport for undecorated polymeric micelles, while the transcellular transport pathway for Gly-Sar decorated ones was changed to be mainly mediated by clathrin and lipid rafts. The colocalization of Gly-Sar decorated micelles with the organelles observed by confocal laser scanning microscopy indicated that late endosomes, lysosomes, endoplasmic reticulum and Golgi apparatus appeared to participate in the intracellular trafficking progression of the micelles. These results suggested that PepT1-targeted polymeric micelles might have a strong potential to greatly promote the oral absorption of poorly water-soluble and absorbed agents.
Collapse
Affiliation(s)
- Yao Jin
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
| | - Qi Liu
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
| | - Chuhang Zhou
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
| | - Xinping Hu
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
| | - Leqi Wang
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
| | - Shidi Han
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
| | - Yuanhang Zhou
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
| | - Yan Liu
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
| |
Collapse
|
12
|
Chong YK, Zainol I, Ng CH, Ooi IH. Miktoarm star polymers nanocarrier: synthesis, characterisation, and in-vitro drug release study. JOURNAL OF POLYMER RESEARCH 2019. [DOI: 10.1007/s10965-019-1726-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
13
|
Sawdon AJ, Zhang J, Wang X, Peng CA. Enhanced Anticancer Activity of 5'-DFUR-PCL-MPEG Polymeric Prodrug Micelles Encapsulating Chemotherapeutic Drugs. NANOMATERIALS 2018; 8:nano8121041. [PMID: 30551585 PMCID: PMC6315712 DOI: 10.3390/nano8121041] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 12/10/2018] [Accepted: 12/11/2018] [Indexed: 12/15/2022]
Abstract
The compound 5’-deoxy-5-fluorouridine (5’-DFUR) is a prodrug of the anti-tumor drug 5-fluorouracil (5-FU). Thymidine phosphorylase (TP) is an enzyme that can convert 5’-DFUR to its active form 5-FU and the expression of TP is upregulated in various cancer cells. In this study, 5’-DFUR associated with amphiphilic copolymer poly(ε-caprolactone)-methoxy poly(ethylene glycol) (5’-DFUR-PCL-MPEG) was synthesized, characterized, and self-assembled into functional polymeric micelles. To demonstrate that the prodrug 5’-DFUR could convert into cytotoxic 5-fluorouracil (5-FU) by endogenous TP, HT-29 colorectal cancer cells were treated with 5’-DFUR-PCL-MPEG polymeric micelles for various time periods. Chemotherapeutic drugs doxorubicin (DOX) and 7-ethyl-10-hydroxycamptothecin (SN-38) were also encapsulated separately into 5’-DFUR-PCL-MPEG polymeric micelles to create a dual drug-loaded system. HT-29 cells were treated with DOX or SN-38 encapsulated 5’-DFUR-PCL-MPEG polymeric micelles to examine the efficacy of dual drug-loaded micelles. As a result, HT-29 cells treated with 5’-DFUR-PCL-MPEG polymeric micelles showed up to 40% cell death rate after a 72-h treatment. In contrast, HT-29 cells challenged with DOX or SN-38 encapsulated 5’-DFUR-incorporated polymeric micelles showed 36% and 31% in cell viability after a 72-h treatment, respectively.
Collapse
Affiliation(s)
- Alicia J Sawdon
- Department of Chemical Engineering, Michigan Technological University, Houghton, MI, 49931, USA.
| | - Jun Zhang
- Department of Biological Engineering, University of Idaho, Moscow, ID 83844, USA.
| | - Xutu Wang
- Department of Biological Engineering, University of Idaho, Moscow, ID 83844, USA.
| | - Ching-An Peng
- Department of Biological Engineering, University of Idaho, Moscow, ID 83844, USA.
| |
Collapse
|
14
|
Lebrón JA, Ostos FJ, López-López M, Moyá ML, Kardell O, Sánchez A, Carrasco CJ, García-Calderón M, García-Calderón CB, Rosado IV, López-Cornejo P. Preparation and characterization of metallomicelles of Ru(II). Cytotoxic activity and use as vector. Colloids Surf B Biointerfaces 2018; 175:116-125. [PMID: 30529817 DOI: 10.1016/j.colsurfb.2018.11.081] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 11/27/2018] [Accepted: 11/28/2018] [Indexed: 10/27/2022]
Abstract
The use of nanovectors in several medicinal treatments has reached a great importance in the last decade. Some drugs need to be protected to increase their lifetimes in the blood flow, to avoid degradation, to be delivered into target cells or to decrease their side effects. The goal of this work was to design and prepare nanovectors formed by novel surfactants derived from the [Ru(bpy)3]2+ complex. These amphiphilic molecules are assembled to form metallomicelles which can act as pharmaceutical agents and, at the same time, as nanovectors for several drugs. TEM images showed a structural transition from spherical to elongated micelles when the surfactant concentration increased. Fluorescence microscopy confirmed the internalization of these metallomicelles into diverse cell lines and cytotoxicity assays demonstrated specificity for some human cancer cells. The encapsulation of various antibiotics was carried out as well as a thorough study about the DNA condensation by the metallomicelles. To the best of our knowledge, applications of these metallomicelles have not been shown in the literature yet.
Collapse
Affiliation(s)
- J A Lebrón
- Departamento de Química Física, Facultad de Química, Universidad de Sevilla, c/ Prof. García González nº 1, Seville, 41012, Spain
| | - F J Ostos
- Departamento de Química Física, Facultad de Química, Universidad de Sevilla, c/ Prof. García González nº 1, Seville, 41012, Spain
| | - M López-López
- Departamento de Ingeniería Química, Química Física y Ciencias de los Materiales. Universidad de Huelva. Campus 'El Carmen', Facultad de Ciencias Experimentales, E-21071, Spain
| | - M L Moyá
- Departamento de Química Física, Facultad de Química, Universidad de Sevilla, c/ Prof. García González nº 1, Seville, 41012, Spain
| | - O Kardell
- Departamento de Química Física, Facultad de Química, Universidad de Sevilla, c/ Prof. García González nº 1, Seville, 41012, Spain
| | - A Sánchez
- Departamento de Química Física, Facultad de Química, Universidad de Sevilla, c/ Prof. García González nº 1, Seville, 41012, Spain
| | - C J Carrasco
- Departamento de Química Inorgánica, Facultad de Química, Universidad de Sevilla. Aptdo. 1203, Sevilla, ES, 41071, Spain
| | - M García-Calderón
- Departamento de Bioquímica Vegetal y Biología Molecular, Facultad de Química, c/ Prof. García González nº 1, Seville, 41012, Spain
| | - C B García-Calderón
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Avda. Manuel Siurot s/n, 41013, Seville, Spain
| | - I V Rosado
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Avda. Manuel Siurot s/n, 41013, Seville, Spain
| | - P López-Cornejo
- Departamento de Química Física, Facultad de Química, Universidad de Sevilla, c/ Prof. García González nº 1, Seville, 41012, Spain.
| |
Collapse
|
15
|
Qu X, Zou Y, He C, Zhou Y, Jin Y, Deng Y, Wang Z, Li X, Zhou Y, Liu Y. Improved intestinal absorption of paclitaxel by mixed micelles self-assembled from vitamin E succinate-based amphiphilic polymers and their transcellular transport mechanism and intracellular trafficking routes. Drug Deliv 2018; 25:210-225. [PMID: 29313392 PMCID: PMC6058530 DOI: 10.1080/10717544.2017.1419513] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Abstract
To ensure that antitumor drugs can be effectively transported across intestinal barrier and then quickly released in tumor cells, mixed polymeric micelles (Mix-PMs) were designed and fabricated by combining poly(2-ethyl-2-oxazoline)-vitamin E succinate (PEOz-VES) with TPGS1000 for enhancing intestinal absorption of paclitaxel. PEOz-VES exhibited an extremely low critical micelle concentration and negligible cytotoxicity. The Mix-PMs were characterized to have about 20 nm in diameter, uniform spherical morphology, high drug-loading content and sustained drug release profile with a retained pH-sensitivity. The results of the transport through Caco-2 cell monolayers and intestinal absorption revealed that Mix-PMs displayed higher transcellular transport efficiency compared with PEOz-VES micelles and Taxol®. The possible mechanism of transcellular transport for Mix-PMs was elucidated to be mainly through clathrin- and caveolae/lipid rafts-mediated transcytosis. Confocal laser scanning micrographs revealed that late endosomes, lysosomes, endoplasmic reticulum, Golgi apparatus, and mitochondria were all involved in intracellular trafficking of Mix-PMs. The proteins involved in transcytosis of Mix-PMs and finally excreted were unraveled for the first time by the analysis of proteins in the basolateral media according to the proteomics method. Consequently, the fabricated mixed polymeric micelles may have great potential in enhancing intestinal absorption and accelerating drug release in tumor cells.
Collapse
Affiliation(s)
- Xiaoyou Qu
- a Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems , School of Pharmaceutical Sciences, Peking University , Beijing , China
| | - Yang Zou
- a Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems , School of Pharmaceutical Sciences, Peking University , Beijing , China
| | - Chuyu He
- a Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems , School of Pharmaceutical Sciences, Peking University , Beijing , China
| | - Yuanhang Zhou
- a Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems , School of Pharmaceutical Sciences, Peking University , Beijing , China
| | - Yao Jin
- a Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems , School of Pharmaceutical Sciences, Peking University , Beijing , China
| | - Yunqiang Deng
- a Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems , School of Pharmaceutical Sciences, Peking University , Beijing , China
| | - Ziqi Wang
- a Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems , School of Pharmaceutical Sciences, Peking University , Beijing , China
| | - Xinru Li
- a Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems , School of Pharmaceutical Sciences, Peking University , Beijing , China
| | - Yanxia Zhou
- a Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems , School of Pharmaceutical Sciences, Peking University , Beijing , China
| | - Yan Liu
- a Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems , School of Pharmaceutical Sciences, Peking University , Beijing , China
| |
Collapse
|
16
|
|
17
|
Dar MJ, Ali H, Khan A, Khan GM. Polymer-based drug delivery: the quest for local targeting of inflamed intestinal mucosa. J Drug Target 2017; 25:582-596. [DOI: 10.1080/1061186x.2017.1298601] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- M. Junaid Dar
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-I-Azam University, Islamabad, Pakistan
| | - Hussain Ali
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-I-Azam University, Islamabad, Pakistan
| | - Amjad Khan
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-I-Azam University, Islamabad, Pakistan
- Department of Clinical Pharmacy, School of Pharmaceutical Sciences, Universiti Sains Malaysia, Penang, Malaysia
| | - Gul Majid Khan
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-I-Azam University, Islamabad, Pakistan
| |
Collapse
|
18
|
Wu W, Zhang C, Lin W, Chen Q, Guo X, Qian Y, Zhang L. Quantitative structure-property relationship (QSPR) modeling of drug-loaded polymeric micelles via genetic function approximation. PLoS One 2015; 10:e0119575. [PMID: 25780923 PMCID: PMC4364361 DOI: 10.1371/journal.pone.0119575] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2014] [Accepted: 01/30/2015] [Indexed: 12/24/2022] Open
Abstract
Self-assembled nano-micelles of amphiphilic polymers represent a novel anticancer drug delivery system. However, their full clinical utilization remains challenging because the quantitative structure-property relationship (QSPR) between the polymer structure and the efficacy of micelles as a drug carrier is poorly understood. Here, we developed a series of QSPR models to account for the drug loading capacity of polymeric micelles using the genetic function approximation (GFA) algorithm. These models were further evaluated by internal and external validation and a Y-randomization test in terms of stability and generalization, yielding an optimization model that is applicable to an expanded materials regime. As confirmed by experimental data, the relationship between microstructure and drug loading capacity can be well-simulated, suggesting that our models are readily applicable to the quantitative evaluation of the drug-loading capacity of polymeric micelles. Our work may offer a pathway to the design of formulation experiments.
Collapse
Affiliation(s)
- Wensheng Wu
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, P. R. China
- School of Chemistry and Chemical Engineering, Zhaoqing University, Zhaoqing, P. R. China
| | - Canyang Zhang
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, P. R. China
| | - Wenjing Lin
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, P. R. China
| | - Quan Chen
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, P. R. China
| | - Xindong Guo
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, P. R. China
| | - Yu Qian
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, P. R. China
| | - Lijuan Zhang
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, P. R. China
| |
Collapse
|
19
|
Zhao Y, Tian W, Yang G, Fan X. Linear-g-hyperbranched and cyclodextrin-based amphiphilic block copolymer as a multifunctional nanocarrier. Beilstein J Org Chem 2015; 10:2696-703. [PMID: 25550733 PMCID: PMC4273233 DOI: 10.3762/bjoc.10.284] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Accepted: 10/30/2014] [Indexed: 12/18/2022] Open
Abstract
In this paper, a novel, multifunctional polymer nanocarrier was designed to provide adequate volume for high drug loading, to afford a multiregion encapsulation ability, and to achieve controlled drug release. An amphiphilic, triblock polymer (ABC) with hyperbranched polycarbonsilane (HBPCSi) and β-cyclodextrin (β-CD) moieties were first synthesized by the combination of a two-step reversible addition-fragmentation transfer polymerization into a pseudo-one-step hydrosilylation and quaternization reaction. The ABC then self-assembled into stable micelles with a core–shell structure in aqueous solution. These resulting micelles are multifunctional nanocarriers which possess higher drug loading capability due to the introduction of HBPCSi segments and β-CD moieties, and exhibit controlled drug release based on the diffusion release mechanism. The novel multifunctional nanocarrier may be applicable to produce highly efficient and specialized delivery systems for drugs, genes, and diagnostic agents.
Collapse
Affiliation(s)
- Yamei Zhao
- College of Environmental and Chemical Engineering, Xi'an Polytechnic University, Xi'an, 710048, P. R. China
| | - Wei Tian
- The Key Laboratory of Space Applied Physics and Chemistry, Ministry of Education and Shanxi Key Laboratory of Macromolecular Science and Technology, School of Science, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
| | - Guang Yang
- The Key Laboratory of Space Applied Physics and Chemistry, Ministry of Education and Shanxi Key Laboratory of Macromolecular Science and Technology, School of Science, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
| | - Xiaodong Fan
- The Key Laboratory of Space Applied Physics and Chemistry, Ministry of Education and Shanxi Key Laboratory of Macromolecular Science and Technology, School of Science, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
| |
Collapse
|
20
|
Pourmoazzen Z, Bagheri M, Akbar Entezami A. Cholesteryl-modified poly (monomethyl itaconate)s micelles as nano-carriers for pH-responsive drug delivery. Polym J 2014. [DOI: 10.1038/pj.2014.71] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|
21
|
Song Z, Zhu W, Liu N, Yang F, Feng R. Linolenic acid-modified PEG-PCL micelles for curcumin delivery. Int J Pharm 2014; 471:312-21. [PMID: 24939613 DOI: 10.1016/j.ijpharm.2014.05.059] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2014] [Revised: 05/01/2014] [Accepted: 05/29/2014] [Indexed: 12/18/2022]
Abstract
In this study, a novel linolenic acid-modified poly(ethylene glycol)-b-poly(ϵ-caprolactone) copolymer was prepared through radical addition, ring-opening polymerization, and N-acylation reactions. Its structure was characterized by (1)H NMR and GPC. Micelles were developed by thin-film hydration and used as a delivery system for curcumin with high drug loading capacity of 12.80% and entrapment efficiency of 98.53%. The water solubility of curcumin was increased to 2.05 mg/mL, which was approximately 1.87×10(5) times higher than that of free curcumin. The micelles were spherical shape with an average diameter of 20.8±0.8 nm. X-ray diffraction and FT-IR studies suggested that curcumin existed in the polymeric matrices under π-π conjugation and hydrogen bond interaction with the copolymer. In vitro drug release studies indicated that the curcumin release from linolenic acid-modified copolymer micelles met controlled release, and its release rate was less than that from the linolenic acid-unmodified copolymer micelles. Cytotoxicities against Hela and A-549cells demonstrated that the additional π-π conjugation could affect curcumin's anticancer activity through reducing its release from micelles. Hemolysis test and intravenous irritation test results revealed that the linolenic acid-modified copolymer was safe for intravenous injection. The plasma AUC0-∞ and MRT0-∞ of curcumin-loaded linolenic acid-conjugated poly(ethylene glycol)-b-poly(ϵ-caprolactone) copolymer micelles were 2.75- and 3.49-fold higher than that of control solution, respectively. The CLz was also decreased by 2.75-fold. So, this linolenic acid-modified copolymer might be a carrier candidate for curcumin delivery.
Collapse
Affiliation(s)
- Zhimei Song
- Department of Pharmaceutical Engineering, School of Biological Science and Technology, University of Jinan, 336 Nanxinzhuang Xilu, Jinan, Shandong Province 250022, PR China
| | - Wenxia Zhu
- School of Medicine and Life Sciences, University of Jinan, 336 Nanxinzhuang Xilu, Jinan, Shandong Province 250022, PR China; Shandong Academy of Medical Sciences, 18877 Jingshi Road, Jinan, Shandong Province 250062, PR China
| | - Na Liu
- Department of Pharmaceutical Engineering, School of Biological Science and Technology, University of Jinan, 336 Nanxinzhuang Xilu, Jinan, Shandong Province 250022, PR China
| | - Fengying Yang
- Department of Pharmaceutical Engineering, School of Biological Science and Technology, University of Jinan, 336 Nanxinzhuang Xilu, Jinan, Shandong Province 250022, PR China
| | - Runliang Feng
- Department of Pharmaceutical Engineering, School of Biological Science and Technology, University of Jinan, 336 Nanxinzhuang Xilu, Jinan, Shandong Province 250022, PR China.
| |
Collapse
|
22
|
Yin Q, Pei Z, Wang H, Zhao Y. Cyclosporine A-nanoparticles enhance the therapeutic benefit of adipose tissue-derived stem cell transplantation in a swine myocardial infarction model. Int J Nanomedicine 2013; 9:17-26. [PMID: 24376353 PMCID: PMC3865086 DOI: 10.2147/ijn.s52005] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Treatment of myocardial infarction (MI) with adipose-derived stem cells (ASCs) has produced promising results. Cyclosporine A (CsA) inhibits apoptosis by preventing the opening of mitochondrial permeability transition pores. A CsA nanoparticle emulsion (CsA-NP) has lower toxicity and higher efficiency as compared to CsA. In this study, we hypothesized that a combination of ASCs and CsA-NP would enhance the therapeutic efficiency in a swine MI model. MI was induced in pig hearts by occlusion of the left anterior descending artery. The animals that survived MI were divided into four groups and 1 week later received intracoronary ASCs (ASCs, n=6), intracoronary culture media in combination with CsA-NP (CsA-NP, n=6), intracoronary ASCs in combination with CsA-NP (ASCs + CsA-NP, n=6), or remained untreated (control, n=4). Animals were sacrificed 8 weeks later and were evaluated for cardiac function by delayed-enhanced magnetic resonance imaging and immunohistopathology. We observed that the left ventricular ejection fraction (LVEF) was significantly increased in the ASCs + CsA-NP group, compared to the CsA-NP group (53.6%±2.4% versus 48.6%±1.5%, P<0.05), and the ASCs group (53.6%±2.4% versus 48.3%±1.8%, P<0.05). More importantly, the infarct size was significantly smaller in the ASCs + CsA-NP group as compared to the CsA-NP group (6.2±1.7 cm3 versus 9.1±3.4 cm3, P<0.05) and the ASCs group (6.2±1.7 cm3 versus 7.5±0.6 cm3, P<0.05). These findings were further confirmed by analysis of the expression of cardiomyocyte markers, myosin heavy chain (α-actinin) and troponin T. In addition, the CsA-NP + ASCs treatment promoted neovascularization (P<0.05) and inhibited cardiomyocyte apoptosis (P<0.01) compared to the control group. This study demonstrates that CsA-NP enhanced the therapeutic benefits of ASCs transplantation for MI.
Collapse
Affiliation(s)
- Qiaoxiang Yin
- Department of Geriatric Cardiology, Chinese General Hospital of the Air Force, Beijing, People's Republic of China
| | - Zhiyong Pei
- Department of Geriatric Cardiology, Beijing Military General Hospital, Beijing, People's Republic of China
| | - Heng Wang
- Department of Neurology, Chinese General Hospital of the Air Force, Beijing, People's Republic of China
| | - Yusheng Zhao
- Institute of Geriatric Cardiology, Chinese PLA General Hospital, Beijing, People's Republic of China
| |
Collapse
|
23
|
Quantitative analysis of the effect of triglyceride alkyl-chain length on the partitioning of highly lipophilic compounds to the mesenteric lymph in intestinal cells. Arch Pharm Res 2013; 37:937-46. [PMID: 24081442 DOI: 10.1007/s12272-013-0249-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2013] [Accepted: 09/20/2013] [Indexed: 12/26/2022]
Abstract
The purpose of this study was to quantitatively clarify the effect of alky-chain length of a triglyceride in an emulsion on the partitioning of highly lipophilic compounds into the lymph fluid after their oral administration. Highly lipophilic anthraquinone derivatives were orally administered in emulsions to rats. Emulsions composed of long-, medium-, and short-chain triglycerides (LCT, MCT, and SCT emulsions, respectively) were used. The concentrations of the compounds in plasma and lymph fluid were periodically determined and their partitioning to the lymph was calculated using a mathematical model. Intestinal absorption of all compounds was enhanced and the plasma concentrations of the compounds were found to be in the following order: LCT emulsion > MCT emulsion > SCT emulsion. The amounts of each compound recovered in the lymph were not in agreement with their lipophilicity. Quantitative analysis revealed that the partitioning of the compounds to the lymph may be determined by the solubility of the compound in the triglyceride in the form of an emulsion and the amount of triglyceride transferred to the lymph fluid. These results suggest a possibility that the amount of a compound absorbed via the lymph route after oral administration can be quantitatively controlled by the formulations.
Collapse
|
24
|
Preparation of stealth micellar nanoparticles of novel biodegradable and biocompatible brush copolymers with cholesteryl-modified PLA and PEG side chains. JOURNAL OF POLYMER RESEARCH 2013. [DOI: 10.1007/s10965-013-0084-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
25
|
Kim MS, Kim JS, Cho WK, Hwang SJ. Enhanced solubility and oral absorption of sirolimus using D-α-tocopheryl polyethylene glycol succinate micelles. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2013; 41:85-91. [DOI: 10.3109/21691401.2012.742100] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
26
|
Li N, Li XR, Zhou YX, Li WJ, Zhao Y, Ma SJ, Li JW, Gao YJ, Liu Y, Wang XL, Yin DD. The use of polyion complex micelles to enhance the oral delivery of salmon calcitonin and transport mechanism across the intestinal epithelial barrier. Biomaterials 2012; 33:8881-92. [PMID: 22975427 DOI: 10.1016/j.biomaterials.2012.08.047] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2012] [Accepted: 08/22/2012] [Indexed: 01/19/2023]
Abstract
The objective of the present study was to demonstrate the effect of polyanionic copolymer mPEG-grafted-alginic acid (mPEG-g-AA)-based polyion complex (PIC) micelles on enhancing the oral absorption of salmon calcitonin (sCT) in vivo and in vitro and identify the transepithelial transport mechanism of PIC micelles across the intestinal barrier. mPEG-g-AA was first successfully synthesized and characterized in cytotoxicity. The PIC micelles were approximately of 72 nm in diameter with a narrow distribution. The extremely significant enhancement of hypocalcemia efficacy of sCT-loaded PIC micelles in rats was evidenced by intraduodenal administration in comparison with sCT solution. The presence of mPEG-grafted-chitosan in PIC micelles had no favorable effect on this action in the referred content. In the Caco-2 transport studies, PIC micelles could significantly increase the permeability of sCT across Caco-2 monolayers without significantly affecting transepithelial electrical resistance values during the transport study. No evident alterations in the F-actin cytoskeleton were detected by confocal microscope observation following treatment of the cell monolayers with PIC micelles, which further certified the incapacity of PIC micelles to open the intercellular tight junctions. In addition, TEM observations showed that the intact PIC micelles were transported across the everted gut sac. These suggested that the transport of PIC micelles across Caco-2 cell monolayers involve a predominant transcytosis mechanism via endocytosis rather than paracellular pathway. Furthermore, PIC micelles were localized in both the cytoplasm and the nuclei observed by CLSM. Therefore, PIC micelles might be a potentially applicable tool for enhancing the oral absorption of cationic peptide and protein drugs.
Collapse
Affiliation(s)
- Na Li
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
27
|
A review on comb-shaped amphiphilic polymers for hydrophobic drug solubilization. Ther Deliv 2012; 3:59-79. [PMID: 22833933 DOI: 10.4155/tde.11.130] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Comb-shaped amphiphilic polymers are rapidly emerging as an alternative approach to amphiphilic block copolymers for hydrophobic drug solubilization. These polymers consist of a homopolymer or copolymer backbone to which hydrophobic and hydrophilic pendant groups can be grafted resulting in a comb-like architecture. The hydrophobic pendants may consist of homopolymers, copolymers and other low-molecular weight hydrophobic structures. In this review, we focus on hydrophobically modified preformed homopolymers. Comb-shaped amphiphilic polymers possess reduced critical aggregation concentration values compared with traditional surfactant micelles indicating increased stability with decreased disruption experienced on dilution. They have been fabricated with diverse architectures and multifunctional properties such as site-specific targeting and external stimuli-responsive nature. The application of comb-shaped amphiphilic polymers is expanding; here we report on the progress achieved so far in hydrophobic drug solubilization for both intravenous and oral delivery.
Collapse
|
28
|
Kulthe SS, Choudhari YM, Inamdar NN, Mourya V. Polymeric micelles: authoritative aspects for drug delivery. Des Monomers Polym 2012. [DOI: 10.1080/1385772x.2012.688328] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
Affiliation(s)
- Sushant S. Kulthe
- a Government College of Pharmacy , Aurangabad , 431005 , Maharashtra , India
| | - Yogesh M. Choudhari
- a Government College of Pharmacy , Aurangabad , 431005 , Maharashtra , India
| | - Nazma N. Inamdar
- a Government College of Pharmacy , Aurangabad , 431005 , Maharashtra , India
| | - Vishnukant Mourya
- a Government College of Pharmacy , Aurangabad , 431005 , Maharashtra , India
| |
Collapse
|
29
|
Baimark Y, Srisuwan Y. Biodegradable nanoparticles of methoxy poly(ethylene glycol)-b-poly( d, l-lactide)/methoxy poly(ethylene glycol)- b-poly(ϵ-caprolactone) blends for drug delivery. NANOSCALE RESEARCH LETTERS 2012; 7:271. [PMID: 22647275 PMCID: PMC3458902 DOI: 10.1186/1556-276x-7-271] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2012] [Accepted: 05/18/2012] [Indexed: 06/01/2023]
Abstract
The effects of blend weight ratio and polyester block length of methoxy poly(ethylene glycol)-b-poly( d, l-lactide) (MPEG- b-PDLL)/methoxy poly(ethylene glycol)- b-poly(ϵ-caprolactone) (MPEG- b-PCL) blends on nanoparticle characteristics and drug release behaviors were evaluated. The blend nanoparticles were prepared by nanoprecipitation method for controlled release of a poorly water-soluble model drug, indomethacin. The drug-loaded nanoparticles were nearly spherical in shape. The particle size and drug loading efficiency slightly decreased with increasing MPEG- b-PCL blend weight ratio. Two distinct thermal decomposition steps from thermogravimetric analysis suggested different blend weight ratios. Thermal transition changes from differential scanning calorimetry revealed miscible blending between MPEG- b-PDLL and MPEG- b-PCL in an amorphous phase. An in vitro drug release study demonstrated that the drug release behaviors depended upon the PDLL block length and the blend weight ratios but not on PCL block length.
Collapse
Affiliation(s)
- Yodthong Baimark
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahasarakham University, Mahasarakham, 44150, Thailand
| | - Yaowalak Srisuwan
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahasarakham University, Mahasarakham, 44150, Thailand
| |
Collapse
|
30
|
Yang YQ, Lin WJ, Zhao B, Wen XF, Guo XD, Zhang LJ. Synthesis and physicochemical characterization of amphiphilic triblock copolymer brush containing pH-sensitive linkage for oral drug delivery. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:8251-8259. [PMID: 22568600 DOI: 10.1021/la301099q] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A novel and well-defined pH-sensitive amphiphilic triblock copolymer brush poly(lactide)-b-poly(methacrylic acid)-b-poly(poly(ethylene glycol) methyl ether monomethacrylate) (PLA-b-PMAA-b-PPEGMA) and its self-assembled micelles were developed for oral administration of hydrophobic drugs. The copolymer and its precursors were synthesized by the combination of activators regenerated by electron transfer atom transfer radical polymerization (ARGET ATRP) and ring-opening polymerization (ROP) techniques. The molecular structures and characteristics were confirmed by GPC, (1)H NMR, and FT-IR. The critical micelle concentration (CMC) values of PLA-b-PMAA-b-PPEGMA in aqueous medium varied from 1.4 to 2.6 mg/L, and the partition equilibrium constant (K(v)) of pyrene in micellar solutions ranged from 2.873 × 10(5) to 3.312 × 10(5). The average sizes of the self-assembled blank and drug-loaded micelles were 140-250 nm determined by DLS in aqueous solution. The morphology of the micelles was found to be spherical by SEM. Nifedipine (NFD), a poorly water-soluble drug, was selected as the model drug and wrapped into the core of micelles via dialysis method. The in vitro release behavior of NFD from the micelles was pH-dependent. In simulated gastric fluid (SGF, pH 1.2), the cumulative release percent of NFD was relative low, while in simulated intestinal fluid (SIF, pH 7.4), more than 96% was released within 24 h. All the results showed that the pH-sensitive PLA-b-PMAA-b-PPEGMA micelle may be a prospective candidate as oral drug delivery carrier for hydrophobic drugs with controlled release behavior.
Collapse
Affiliation(s)
- You Qiang Yang
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, P R China
| | | | | | | | | | | |
Collapse
|
31
|
Tian Y, Mao S. Amphiphilic polymeric micelles as the nanocarrier for peroral delivery of poorly soluble anticancer drugs. Expert Opin Drug Deliv 2012; 9:687-700. [PMID: 22519507 DOI: 10.1517/17425247.2012.681299] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
INTRODUCTION Many amphiphilic copolymers have recently been synthesized as novel promising micellar carriers for the delivery of poorly water-soluble anticancer drugs. Studies on the formulation and oral delivery of such micelles have demonstrated their efficacy in enhancing drug uptake and absorption, and exhibit prolonged circulation time in vitro and in vivo. AREAS COVERED In this review, literature on hydrophobic modifications of several hydrophilic polymers, including polyethylene glycol, chitosan, hyaluronic acid, pluronic and tocopheryl polyethylene glycol succinate, is summarized. Parameters influencing the properties of polymeric micelles for oral chemotherapy are discussed and strategies to overcome main barriers for polymeric micelles peroral absorption are proposed. EXPERT OPINION During the design of polymeric micelles for peroral chemotherapy, selecting or synthesizing copolymers with good compatibility with the drug is an effective strategy to increase drug loading and encapsulation efficiency. Stability of the micelles can be improved in different ways. It is recommended to take permeability, mucoadhesion, sustained release, and P-glycoprotein inhibition into consideration during copolymer preparation or to consider adding some excipients in the formulation. Furthermore, both the copolymer structure and drug loading methods should be controlled in order to get micelles with appropriate particle size for better absorption.
Collapse
Affiliation(s)
- Ye Tian
- Shenyang Pharmaceutical University, School of Pharmacy, Shenyang, China
| | | |
Collapse
|
32
|
Immunosuppressive Activity of Size-Controlled PEG-PLGA Nanoparticles Containing Encapsulated Cyclosporine A. J Transplant 2012; 2012:896141. [PMID: 22545201 PMCID: PMC3321582 DOI: 10.1155/2012/896141] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2011] [Accepted: 12/06/2011] [Indexed: 11/17/2022] Open
Abstract
We encapsulated cyclosporine A (CsA) in poly(ethylene glycol)-b-poly(d,l-lactide-co-glycolide) (PEG-PLGA) nanoparticles (NPs) by nanoprecipitation of CsA and PEG-PLGA. The resulting CsA/PEG-PLGA-NPs were <100 nm in diameter with a narrow particle size distribution. The NP size could be controlled by tuning the polymer concentration, solvent, or water/solvent ratio during formulation. The PEGylated NPs maintained non-aggregated in salt solution. Solid NPs lyoprotected with bovine serum albumin were prepared for the convenience of storage and transportation. The release kinetics of CsA (55.6% released on Day 1) showed potential for maintaining therapeutic CsA concentrations in vivo. In T-cell assays, both free CsA and CsA/PEG-PLGA-NPs suppressed T-cell proliferation and production of inflammatory cytokines dose dependently. In a mixed lymphocyte reaction assay, the IC(50) values for free CsA and CsA/PEG-PLGA-NPs were found to be 30 and 35 ng/mL, respectively. This nanoparticulate CsA delivery technology constitutes a strong basis for future targeted delivery of immunosuppressive drugs with improved efficiency and potentially reduced toxicity.
Collapse
|
33
|
Moutinho CG, Matos CM, Teixeira JA, Balcão VM. Nanocarrier possibilities for functional targeting of bioactive peptides and proteins: state-of-the-art. J Drug Target 2011; 20:114-41. [PMID: 22023555 DOI: 10.3109/1061186x.2011.628397] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
This review attempts to provide an updated compilation of studies reported in the literature pertaining to production of nanocarriers encasing peptides and/or proteins, in a way that helps the reader direct a bibliographic search and develop an integrated perspective of the subject. Highlights are given to bioactive proteins and peptides, with a special focus on those from dairy sources (including physicochemical characteristics and properties, and biopharmaceutical application possibilities of e.g. lactoferrin and glycomacropeptide), as well as to nanocarrier functional targeting. Features associated with micro- and (multiple) nanoemulsions, micellar systems, liposomes and solid lipid nanoparticles, together with biopharmaceutical considerations, are presented in the text in a systematic fashion.
Collapse
Affiliation(s)
- Carla G Moutinho
- Bioengineering and Biopharmaceutical Chemistry Research Group, Faculty of Health Sciences, Fernando Pessoa University, Porto, Portugal
| | | | | | | |
Collapse
|
34
|
Fan Y, Li X, Zhou Y, Fan C, Wang X, Huang Y, Liu Y. Improved intestinal delivery of salmon calcitonin by water-in-oil microemulsions. Int J Pharm 2011; 416:323-30. [DOI: 10.1016/j.ijpharm.2011.06.029] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2011] [Revised: 06/15/2011] [Accepted: 06/17/2011] [Indexed: 10/18/2022]
|
35
|
Inclusion complex of 2-chlorobenzophenone with cyclomaltoheptaose (β-cyclodextrin): temperature, solvent effects and molecular modeling. Carbohydr Res 2011; 346:1978-84. [DOI: 10.1016/j.carres.2011.05.002] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2011] [Revised: 05/02/2011] [Accepted: 05/04/2011] [Indexed: 11/19/2022]
|
36
|
Li X, Zhang Y, Fan Y, Zhou Y, Wang X, Fan C, Liu Y, Zhang Q. Preparation and evaluation of novel mixed micelles as nanocarriers for intravenous delivery of propofol. NANOSCALE RESEARCH LETTERS 2011; 6:275. [PMID: 21711808 PMCID: PMC3211339 DOI: 10.1186/1556-276x-6-275] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2010] [Accepted: 03/31/2011] [Indexed: 05/09/2023]
Abstract
Novel mixed polymeric micelles formed from biocompatible polymers, poly(ethylene glycol)-poly(lactide) (mPEG-PLA) and polyoxyethylene-660-12-hydroxy stearate (Solutol HS15), were fabricated and used as a nanocarrier for solubilizing poorly soluble anesthetic drug propofol. The solubilization of propofol by the mixed micelles was more efficient than those made of mPEG-PLA alone. Micelles with the optimized composition of mPEG-PLA/Solutol HS15/propofol = 10/1/5 by weight had particle size of about 101 nm with narrow distribution (polydispersity index of about 0.12). Stability analysis of the mixed micelles in bovine serum albumin (BSA) solution indicated that the diblock copolymer mPEG efficiently protected the BSA adsorption on the mixed micelles because the hydrophobic groups of the copolymer were efficiently screened by mPEG, and propofol-loaded mixed micelles were stable upon storage for at least 6 months. The content of free propofol in the aqueous phase for mixed micelles was lower by 74% than that for the commercial lipid emulsion. No significant differences in times to unconsciousness and recovery of righting reflex were observed between mixed micelles and commercial lipid formulation. The pharmacological effect may serve as pharmaceutical nanocarriers with improved solubilization capacity for poorly soluble drugs.
Collapse
Affiliation(s)
- Xinru Li
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Xueyuan Road 38, Haidian District, Beijing 100191, People's Republic of China
| | - Yanhui Zhang
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Xueyuan Road 38, Haidian District, Beijing 100191, People's Republic of China
| | - Yating Fan
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Xueyuan Road 38, Haidian District, Beijing 100191, People's Republic of China
| | - Yanxia Zhou
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Xueyuan Road 38, Haidian District, Beijing 100191, People's Republic of China
| | - Xiaoning Wang
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Xueyuan Road 38, Haidian District, Beijing 100191, People's Republic of China
| | - Chao Fan
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Xueyuan Road 38, Haidian District, Beijing 100191, People's Republic of China
| | - Yan Liu
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Xueyuan Road 38, Haidian District, Beijing 100191, People's Republic of China
| | - Qiang Zhang
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Xueyuan Road 38, Haidian District, Beijing 100191, People's Republic of China
| |
Collapse
|
37
|
Yang YQ, Zheng LS, Guo XD, Qian Y, Zhang LJ. pH-Sensitive Micelles Self-Assembled from Amphiphilic Copolymer Brush for Delivery of Poorly Water-Soluble Drugs. Biomacromolecules 2010; 12:116-22. [DOI: 10.1021/bm101058w] [Citation(s) in RCA: 98] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- You Qiang Yang
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, People’s Republic of China
| | - Ling Shan Zheng
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, People’s Republic of China
| | - Xin Dong Guo
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, People’s Republic of China
| | - Yu Qian
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, People’s Republic of China
| | - Li Juan Zhang
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, People’s Republic of China
| |
Collapse
|