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Gyimesi G, Hediger MA. Transporter-Mediated Drug Delivery. Molecules 2023; 28:molecules28031151. [PMID: 36770817 PMCID: PMC9919865 DOI: 10.3390/molecules28031151] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 01/12/2023] [Accepted: 01/18/2023] [Indexed: 01/27/2023] Open
Abstract
Transmembrane transport of small organic and inorganic molecules is one of the cornerstones of cellular metabolism. Among transmembrane transporters, solute carrier (SLC) proteins form the largest, albeit very diverse, superfamily with over 400 members. It was recognized early on that xenobiotics can directly interact with SLCs and that this interaction can fundamentally determine their efficacy, including bioavailability and intertissue distribution. Apart from the well-established prodrug strategy, the chemical ligation of transporter substrates to nanoparticles of various chemical compositions has recently been used as a means to enhance their targeting and absorption. In this review, we summarize efforts in drug design exploiting interactions with specific SLC transporters to optimize their therapeutic effects. Furthermore, we describe current and future challenges as well as new directions for the advanced development of therapeutics that target SLC transporters.
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2
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Ruzgar Ozemre G, Kara A, Pezik E, Tort S, Vural İ, Acartürk F. Preparation of nanodelivery systems for oral administration of low molecular weight heparin. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.104068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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3
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Bansal R, Suryan A. A Comprehensive Review on Steroidal Bioconjugates as Promising Leads in Drug Discovery. ACS BIO & MED CHEM AU 2022; 2:340-369. [PMID: 37102169 PMCID: PMC10125316 DOI: 10.1021/acsbiomedchemau.1c00071] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Ever increasing unmet medical requirements of the human race and the continuous fight for survival against variety of diseases give birth to novel molecules through research. As diseases evolve, different strategies are employed to counter the new challenges and to discover safer, more effective, and target-specific therapeutic agents. Among several novel approaches, bioconjugation, in which two chemical moieties are joined together to achieve noticeable results, has emerged as a simple and convenient technique for a medicinal chemist to obtain potent molecules. The steroid system has been extensively used as a privileged scaffold gifted with significantly diversified medicinal properties in the drug discovery and development process. Steroidal molecules are preferred for their rigidness and good ability to penetrate biological membranes. Slight alteration in the basic ring structure results in the formation of steroidal derivatives with a wide range of therapeutic activities. Steroids are not only active as such, conjugating them with various biologically active moieties results in increased lipophilicity, stability, and target specificity with decreased adverse effects. Thus, the steroid nucleus prominently behaves as a biological carrier for small molecules. The steroid bioconjugates offer several advantages such as synergistic activity with fewer side effects due to reduced dose and selective therapy. The steroidal bioconjugates have been widely explored for their usefulness against various disorders and have shown significant utility as anticancer, anti-inflammatory, anticoagulant, antimicrobial, insecticidal/pesticidal, antioxidant, and antiviral agents along with several other miscellaneous activities. This work provides a comprehensive review on the therapeutic progression of steroidal bioconjugates as medicinally active molecules. The review covers potential biological applications of steroidal bioconjugates and would benefit the wider scientific community in their drug discovery endeavors.
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Affiliation(s)
- Ranju Bansal
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh 160014, India
| | - Amruta Suryan
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh 160014, India
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4
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Alqahtani AA, Aslam H, Shukrullah S, Fatima H, Naz MY, Rahman S, Mahnashi MH, Irfan M. Nanocarriers for Smart Therapeutic Strategies to Treat Drug-Resistant Tumors: A Review. Assay Drug Dev Technol 2022; 20:191-210. [DOI: 10.1089/adt.2022.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
| | - Hira Aslam
- Department of Physics, University of Agriculture Faisalabad, Faisalabad, Pakistan
| | - Shazia Shukrullah
- Department of Physics, University of Agriculture Faisalabad, Faisalabad, Pakistan
| | - Hareem Fatima
- Department of Physics, University of Agriculture Faisalabad, Faisalabad, Pakistan
| | - Muhammad Yasin Naz
- Department of Physics, University of Agriculture Faisalabad, Faisalabad, Pakistan
| | - Saifur Rahman
- Electrical Engineering Department, College of Engineering, Najran University, Najran, Saudi Arabia
| | - Mater H. Mahnashi
- Department of Pharmaceutical Chemistry, College of Pharmacy, Najran University, Najran, Saudi Arabia
| | - Muhammad Irfan
- Electrical Engineering Department, College of Engineering, Najran University, Najran, Saudi Arabia
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5
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Advances in oral absorption of polysaccharides: Mechanism, affecting factors, and improvement strategies. Carbohydr Polym 2022; 282:119110. [DOI: 10.1016/j.carbpol.2022.119110] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Revised: 01/04/2022] [Accepted: 01/05/2022] [Indexed: 02/08/2023]
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6
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Hunt NJ, McCourt PAG, Kuncic Z, Le Couteur DG, Cogger VC. Opportunities and Challenges for Nanotherapeutics for the Aging Population. FRONTIERS IN NANOTECHNOLOGY 2022. [DOI: 10.3389/fnano.2022.832524] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Nanotherapeutics utilize the properties of nanomaterials to alter the pharmacology of the drugs and therapies being transported, leading to changes in their biological disposition (absorption, distribution, cellular uptake, metabolism and elimination) and ultimately, their pharmacological effect. This provides an opportunity to optimize the pharmacology of drugs, particularly for those that are dependent on hepatic action. Old age is associated with changes in many pharmacokinetic processes which tend to impair drug efficacy and increase risk of toxicity. While these age-related changes are drug-specific they could be directly addressed using nanotechnology and precision targeting. The benefits of nanotherapeutics needs to be balanced against toxicity, with future use in humans dependent upon the gathering of information about the clearance and long-term safety of nanomaterials.
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Lei K, Yuan M, Zhou T, Ye Q, Zeng B, Zhou Q, Wei A, Guo L. Research progress in the application of bile acid-drug conjugates: A "trojan horse" strategy. Steroids 2021; 173:108879. [PMID: 34181976 DOI: 10.1016/j.steroids.2021.108879] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 04/25/2021] [Accepted: 06/22/2021] [Indexed: 12/12/2022]
Abstract
Bile acid transporters are highly expressed in intestinal cells and hepatocytes, and they determine the uptake of drugs in cells by modulating cellular entry and exit. In order to improve the oral bioavailability of drugs and investigate the potential application prospects of drugs used to target cancer, numerous studies have adopted these transporters to identify prodrug strategies. Through the connection of covalent bonds between drugs and bile acids, the resulting bile acid-drug conjugates continue to be recognized as similar to natural unmodified bile acid and is translocated by the transporter. The present mini-review provides a brief summary of recent progress of the application of bile acid-drug conjugates based primarily on ASBT, NTCP, and OATP, with the hope of contributing to subsequent research.
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Affiliation(s)
- Kelu Lei
- State Key Laboratory of Characteristic Chinese Medicine Resources in Southwest China, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Minghao Yuan
- State Key Laboratory of Characteristic Chinese Medicine Resources in Southwest China, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Tao Zhou
- State Key Laboratory of Characteristic Chinese Medicine Resources in Southwest China, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Qiang Ye
- State Key Laboratory of Characteristic Chinese Medicine Resources in Southwest China, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Bin Zeng
- State Key Laboratory of Characteristic Chinese Medicine Resources in Southwest China, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Qiang Zhou
- State Key Laboratory of Characteristic Chinese Medicine Resources in Southwest China, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Ailing Wei
- State Key Laboratory of Characteristic Chinese Medicine Resources in Southwest China, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Li Guo
- State Key Laboratory of Characteristic Chinese Medicine Resources in Southwest China, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
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8
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Kou L, Yao Q, Zhang H, Chu M, Bhutia YD, Chen R, Ganapathy V. Transporter-Targeted Nano-Sized Vehicles for Enhanced and Site-Specific Drug Delivery. Cancers (Basel) 2020; 12:E2837. [PMID: 33019627 PMCID: PMC7599460 DOI: 10.3390/cancers12102837] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 09/26/2020] [Accepted: 09/29/2020] [Indexed: 12/17/2022] Open
Abstract
Nano-devices are recognized as increasingly attractive to deliver therapeutics to target cells. The specificity of this approach can be improved by modifying the surface of the delivery vehicles such that they are recognized by the target cells. In the past, cell-surface receptors were exploited for this purpose, but plasma membrane transporters also hold similar potential. Selective transporters are often highly expressed in biological barriers (e.g., intestinal barrier, blood-brain barrier, and blood-retinal barrier) in a site-specific manner, and play a key role in the vectorial transfer of nutrients. Similarly, selective transporters are also overexpressed in the plasma membrane of specific cell types under pathological states to meet the biological needs demanded by such conditions. Nano-drug delivery systems could be strategically modified to make them recognizable by these transporters to enhance the transfer of drugs across the biological barriers or to selectively expose specific cell types to therapeutic drugs. Here, we provide a comprehensive review and detailed evaluation of the recent advances in the field of transporter-targeted nano-drug delivery systems. We specifically focus on areas related to intestinal absorption, transfer across blood-brain barrier, tumor-cell selective targeting, ocular drug delivery, identification of the transporters appropriate for this purpose, and details of the rationale for the approach.
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Affiliation(s)
- Longfa Kou
- Department of Pharmacy, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Zhejiang 325027, China;
- Wenzhou Municipal Key Laboratory of Pediatric Pharmacy, Zhejiang 325027, China; (Q.Y.); (H.Z.); (M.C.)
| | - Qing Yao
- Wenzhou Municipal Key Laboratory of Pediatric Pharmacy, Zhejiang 325027, China; (Q.Y.); (H.Z.); (M.C.)
- Department of Pharmaceutical Sciences, Wenzhou Medical University, Zhejiang 325035, China
| | - Hailin Zhang
- Wenzhou Municipal Key Laboratory of Pediatric Pharmacy, Zhejiang 325027, China; (Q.Y.); (H.Z.); (M.C.)
- Department of Children’s Respiration Disease, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Zhejiang 325027, China
| | - Maoping Chu
- Wenzhou Municipal Key Laboratory of Pediatric Pharmacy, Zhejiang 325027, China; (Q.Y.); (H.Z.); (M.C.)
- Pediatric Research Institute, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Zhejiang 325027, China
| | - Yangzom D. Bhutia
- Department of Cell Biology and Biochemistry, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA;
| | - Ruijie Chen
- Department of Pharmacy, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Zhejiang 325027, China;
- Wenzhou Municipal Key Laboratory of Pediatric Pharmacy, Zhejiang 325027, China; (Q.Y.); (H.Z.); (M.C.)
| | - Vadivel Ganapathy
- Department of Pharmacy, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Zhejiang 325027, China;
- Wenzhou Municipal Key Laboratory of Pediatric Pharmacy, Zhejiang 325027, China; (Q.Y.); (H.Z.); (M.C.)
- Department of Cell Biology and Biochemistry, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA;
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9
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Fang G, Tang B. Advanced delivery strategies facilitating oral absorption of heparins. Asian J Pharm Sci 2020; 15:449-460. [PMID: 32952668 PMCID: PMC7486512 DOI: 10.1016/j.ajps.2019.11.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Revised: 09/23/2019] [Accepted: 11/21/2019] [Indexed: 12/20/2022] Open
Abstract
Heparins show great anticoagulant effect with few side effects, and are administered by subcutaneous or intravenous route in clinics. To improve patient compliance, oral administration is an alternative route. Nonetheless, oral administration of heparins still faces enormous challenges due to the multiple obstacles. This review briefly analyzes a series of barriers ranging from poorly physicochemical properties of heparins, to harsh biological barriers including gastrointestinal degradation and pre-systemic metabolism. Moreover, several approaches have been developed to overcome these obstacles, such as improving stability of heparins in the gastrointestinal tract, enhancing the intestinal epithelia permeability and facilitating lymphatic delivery of heparins. Overall, this review aims to provide insights concerning advanced delivery strategies facilitating oral absorption of heparins.
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Affiliation(s)
- Guihua Fang
- School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong 226001, China
| | - Bo Tang
- School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong 226001, China
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10
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Wang D, Wang X, Li X, Jiang L, Chang Z, Li Q. Biologically responsive, long-term release nanocoating on an electrospun scaffold for vascular endothelialization and anticoagulation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 107:110212. [PMID: 31761208 DOI: 10.1016/j.msec.2019.110212] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 08/21/2019] [Accepted: 09/16/2019] [Indexed: 01/19/2023]
Abstract
A critical challenge to the development of tissue engineering small-diameter vascular grafts is to achieve rapid endothelialization and long-term anticoagulation. It is necessary to graft both adhesion and antithrombus factors onto the surface of polycaprolactone without burst release to promote endothelial cell affinity and antithrombogenicity. A bionic structure with a nanocoating that allows a biologically responsive, long-term release was employed in this work to enable the grafting of various bioactive molecules such as gelatin, polylysine, and heparin. This approach involved orienting the biomimetic vascular structures; the self-assembly grafting of gelatin, polylysine, and heparin nanoparticles; and genipin crosslinking to form a multiphase crosslinked nanocoating. In this biologically inspired design, vascular endothelialization and long-term anticoagulation were successfully induced through a matrix metallopeptidase 2 regulative mechanism by delivering both adhesion and antithrombus factors with a responsive, long-term release without burst release. The method provided a simple and effective approach for delivering dual factors for tissue engineering small-diameter vascular grafts.
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Affiliation(s)
- Dongfang Wang
- School of Mechanics and Engineering Science, Zhengzhou University, Zhengzhou, 450001, PR China; National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou, 450001, PR China.
| | - Xiaofeng Wang
- School of Mechanics and Engineering Science, Zhengzhou University, Zhengzhou, 450001, PR China; National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou, 450001, PR China.
| | - Xuyan Li
- School of Mechanics and Engineering Science, Zhengzhou University, Zhengzhou, 450001, PR China; National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou, 450001, PR China.
| | - Lin Jiang
- National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou, 450001, PR China.
| | - Zhonghua Chang
- School of Mechanics and Engineering Science, Zhengzhou University, Zhengzhou, 450001, PR China; National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou, 450001, PR China.
| | - Qian Li
- School of Mechanics and Engineering Science, Zhengzhou University, Zhengzhou, 450001, PR China; National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou, 450001, PR China.
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11
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Conjugation of bile esters to cellulose by olefin cross-metathesis: A strategy for accessing complex polysaccharide structures. Carbohydr Polym 2019; 221:37-47. [PMID: 31227165 DOI: 10.1016/j.carbpol.2019.05.061] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 05/20/2019] [Accepted: 05/21/2019] [Indexed: 02/07/2023]
Abstract
Bile salts tend to form micelles in aqueous media and can thereby contribute to drug solubilization; they also exhibit crystallization inhibition properties that can stabilize supersaturated drug solutions. Herein, we explore conjugation of bile salts with polysaccharides to create new, amphiphilic polysaccharide derivatives with intriguing properties, portending broad utility in various applications. We introduce efficient conjugation of cholesterol (as a model steroid), lithocholic acid, and deoxycholic acid by mild, modular olefin cross-metathesis reactions. These small molecules were first modified with an acrylate group from the A-ring hydroxyl, then reacted with cellulose derivatives bearing olefin-terminated metathesis "handles". Successful conjugation of bile acids has demonstrated chemoselective cross-metathesis with complex, polyfunctional structures, and large multi-ring systems. It also enabled an efficient, general pathway for polysaccharide-bile salt conjugates, which promise synergy for applications such as amorphous solid dispersion (ASD).
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12
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Bae S, DiBalsi MJ, Meilinger N, Zhang C, Beal E, Korneva G, Brown RO, Kornev KG, Lee JS. Heparin-Eluting Electrospun Nanofiber Yarns for Antithrombotic Vascular Sutures. ACS APPLIED MATERIALS & INTERFACES 2018; 10:8426-8435. [PMID: 29461035 DOI: 10.1021/acsami.7b14888] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
The surgical connection of blood vessels, anastomosis, is a critical procedure in many reparative, transplantation, and reconstructive surgical procedures. However, effective restoration of circulation is complicated by pathological clotting (thrombosis) or progressive occlusion due to excess cell proliferation that often leads to additional surgeries and increases morbidity and mortality risk for patients. Pharmaceutical agents have been tested to prevent these complications, but many have unacceptable systemic side effects. Therefore, an alternative approach to deliver these drugs at the site of injury in a controlled manner is necessary. The objective of this study was to develop electrospun nanofibers composed of polyester poly(lactide- co-glycolide) (PLGA), poly(ethylene oxide) (PEO), and positively charged copolymer, poly(lactide- co-glycolide)- graft-polyethylenimine (PgP) for electrostatic binding and release of heparin for application as an antithrombotic microvascular suture. PgP was synthesized with different coupling ratios between PLGA and branched polyethylenimine (bPEI) to obtain PgP1 (∼1 PLGA grafted to 1 bPEI) and PgP3.7 (∼3.7 PLGA grafted to 1 bPEI). Nanofiber yarns (PLGA/PEO/PgP1 and PLGA/PEO/PgP3.7) were fabricated by electrospinning. Heparin immobilization on the positively charged nanofiber yarns was visualized using fluorescein-conjugated heparin (F-Hep), and the amount of immobilized F-Hep was higher on both PLGA/PEO/PgP3.7 and PLGA/PEO/PgP1 than yarns without PgP (PLGA/PEO). We also found that F-Hep was released from both PgP-containing yarns in a sustained manner over 20 days, while over 60% of F-Hep was released within 4 h from PLGA/PEO. Finally, we observed that heparin-eluting nanofiber yarns with both PgP1 and PgP3.7 showed significantly longer clotting times than nanofiber yarns without PgP. The clotting time of PLGA/PEO/PgP3.7 was not significantly different than that of free heparin (0.5 μg/mL). These results show that heparin-eluting electrospun nanofiber yarns may offer a basis for the development of microvascular sutures with anticoagulant activity.
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Affiliation(s)
- Sooneon Bae
- Dental and Craniofacial Trauma Research & Tissue Regeneration Directorate , United States Army Institute of Surgical Research , JBSA Fort Sam Houston , Texas 78234 , United States
| | | | | | | | | | | | - Robert O Brown
- Department of Head & Neck Surgery , Greenville Health System , Greenville , South Carolina 29615 , United States
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Kou L, Bhutia YD, Yao Q, He Z, Sun J, Ganapathy V. Transporter-Guided Delivery of Nanoparticles to Improve Drug Permeation across Cellular Barriers and Drug Exposure to Selective Cell Types. Front Pharmacol 2018; 9:27. [PMID: 29434548 PMCID: PMC5791163 DOI: 10.3389/fphar.2018.00027] [Citation(s) in RCA: 137] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Accepted: 01/10/2018] [Indexed: 12/17/2022] Open
Abstract
Targeted nano-drug delivery systems conjugated with specific ligands to target selective cell-surface receptors or transporters could enhance the efficacy of drug delivery and therapy. Transporters are expressed differentially on the cell-surface of different cell types, and also specific transporters are expressed at higher than normal levels in selective cell types under pathological conditions. They also play a key role in intestinal absorption, delivery via non-oral routes (e.g., pulmonary route and nasal route), and transfer across biological barriers (e.g., blood–brain barrier and blood–retinal barrier. As such, the cell-surface transporters represent ideal targets for nano-drug delivery systems to facilitate drug delivery to selective cell types under normal or pathological conditions and also to avoid off-target adverse side effects of the drugs. There is increasing evidence in recent years supporting the utility of cell-surface transporters in the field of nano-drug delivery to increase oral bioavailability, to improve transfer across the blood–brain barrier, and to enhance delivery of therapeutics in a cell-type selective manner in disease states. Here we provide a comprehensive review of recent advancements in this interesting and important area. We also highlight certain key aspects that need to be taken into account for optimal development of transporter-assisted nano-drug delivery systems.
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Affiliation(s)
- Longfa Kou
- Department of Cell Biology and Biochemistry, Texas Tech University Health Sciences Center, Lubbock, TX, United States.,Municipal Key Laboratory of Biopharmaceutics, Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, China
| | - Yangzom D Bhutia
- Department of Cell Biology and Biochemistry, Texas Tech University Health Sciences Center, Lubbock, TX, United States
| | - Qing Yao
- Municipal Key Laboratory of Biopharmaceutics, Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, China
| | - Zhonggui He
- Municipal Key Laboratory of Biopharmaceutics, Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, China
| | - Jin Sun
- Municipal Key Laboratory of Biopharmaceutics, Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, China
| | - Vadivel Ganapathy
- Department of Cell Biology and Biochemistry, Texas Tech University Health Sciences Center, Lubbock, TX, United States
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Park JW, Jeon OC, Kim SK, Al-Hilal T, Lim KM, Moon HT, Kim CY, Byun Y. Pharmacokinetic evaluation of an oral tablet form of low-molecular-weight heparin and deoxycholic acid conjugate as a novel oral anticoagulant. Thromb Haemost 2017; 105:1060-71. [DOI: 10.1160/th10-07-0484] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2010] [Accepted: 02/10/2011] [Indexed: 11/05/2022]
Abstract
SummaryThis study was designed to develop a solid oral dosage form of deoxycholic acid (DOCA)-conjugated low-molecular-weight heparin (LMWH) and to evaluate its oral absorption, distribution, and metabolic stability for the prospect of providing an orally bioavailable LMWH. The LMWH derivative (LHD) was synthesised and then formulated with solubilisers and other pharmaceutical excipients to form a solid tablet. Its absorption and distribution after oral administration were evaluated in mice, rats, and monkeys. The in vitro metabolic stability of LHD was examined by liver microsome assays. More than 80% of LHD was released from the tablet within 60 minutes, guaranteeing rapid tablet disintegration after oral administration. Oral bioavailability of LHD in mice, rats and monkeys were 16.1 ± 3.0, 15.6 ± 6.1, and 15.8 ± 2.5%, respectively. After the oral administration of 131I-tyramine-LHD, most of the absorbed drug remained in the blood circulation and was eliminated mainly through the kidneys. LHD was hardly metabolised by the liver microsomes and showed a stable metabolic pattern similar to that of LMWH. In a rat thrombosis model, 10 mg/kg of orally administered LHD reduced thrombus formation by 60.8%, which was comparable to the antithrombotic effect of the subcutaneously injected LMWH (100 IU/ kg). Solid tablets of LHD exhibited high oral absorption and statistically significant therapeutic effects in preventing venous thromboembolism. Accordingly, LHD tablets are expected to satisfy the unmet medical need for an oral heparin-based anticoagulant as an alternative to injectable heparin and oral warfarin.
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15
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Li Z, Wang L, Lin X, Shen L, Feng Y. Drug delivery for bioactive polysaccharides to improve their drug-like properties and curative efficacy. Drug Deliv 2017; 24:70-80. [PMID: 29124977 PMCID: PMC8812577 DOI: 10.1080/10717544.2017.1396383] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Over several decades, natural polysaccharides (PSs) have been actively exploited for their wide bioactivities. So far, many PS-related reviews have been published; however, none focused on the delivery of bioactive PSs as therapeutic molecules. Herein, we summarized and discussed general pharmacokinetic properties of PSs and drug delivery systems (DDSs) developed for them, together with the challenges and prospects. Overall, most bioactive PSs suffer from undesirable pharmacokinetic attributes, which negatively affect their efficacy and clinical use. Various DDSs therefore have been being utilized to improve the drug-like properties and curative efficacy of bioactive PSs by means of improving oral absorption, controlling the release, enhancing the in vivo retention ability, targeting the delivery, exerting synergistic effects, and so on. Specifically, nano-sized insoluble DDSs were mainly applied to improve the oral absorption and target delivery of PSs, among which liposome was especially suitable for immunoregulatory and/or anti-ischemic PSs due to its synergistic effects in immunoregulation and biomembrane repair. Chemical conjugation of PSs was mainly utilized to improve their oral absorption and/or prolong their blood residence. With formulation flexibility, in situ forming systems alone or in combination with drug conjugation could be used to achieve day(s)- or month(s)-long sustained delivery of PSs per dosing.
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Affiliation(s)
- Zhe Li
- College of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, PR China
- Engineering Research Center of Modern Preparation Technology of TCM of Ministry of Education, Shanghai University of Traditional Chinese Medicine, Shanghai, PR China
| | - LiNa Wang
- College of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, PR China
| | - Xiao Lin
- College of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, PR China
- Engineering Research Center of Modern Preparation Technology of TCM of Ministry of Education, Shanghai University of Traditional Chinese Medicine, Shanghai, PR China
| | - Lan Shen
- College of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, PR China
| | - Yi Feng
- Engineering Research Center of Modern Preparation Technology of TCM of Ministry of Education, Shanghai University of Traditional Chinese Medicine, Shanghai, PR China
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Ibrahim SS, Osman R, Mortada ND, Geneidy AS, Awad GAS. Passive targeting and lung tolerability of enoxaparin microspheres for a sustained antithrombotic activity in rats. Drug Deliv 2017; 24:243-251. [PMID: 28156170 PMCID: PMC8241188 DOI: 10.1080/10717544.2016.1245368] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Accepted: 10/03/2016] [Indexed: 12/20/2022] Open
Abstract
Pulmonary bed can retain microparticles (MP) larger than their capillaries' diameter, hence we offer a promising way for lung passive targeting following intravenous (IV) administration. In this study, enoxaparin (Enox)-albumin microspheres (Enox-Alb MS) were, optimally, developed as lung targeted sustained release MP for IV use. Lung tolerability and targeting efficiency of Enox-Alb MS were tested, and the pharmacokinetic profile following IV administration to albino rats was constructed. In vivo studies confirmed high lung targeting efficiency of Enox-Alb MS with lack of potential tissue toxicity. The anticoagulant activity of the selected Alb MS was significantly sustained for up to 38 h compared to 5 h for the market product. Alb MS are promising delivery carriers for controlled and targeted delivery of Enox to the lungs for prophylaxis and treatment of pulmonary embolism.
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Affiliation(s)
- Shaimaa S. Ibrahim
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Rihab Osman
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Nahed D. Mortada
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Ahmed-Shawky Geneidy
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Gehanne A. S. Awad
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
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17
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A quality by design (QbD) study on enoxaparin sodium loaded polymeric microspheres for colon-specific delivery. Eur J Pharm Sci 2017; 100:249-261. [DOI: 10.1016/j.ejps.2017.01.006] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Revised: 12/17/2016] [Accepted: 01/09/2017] [Indexed: 12/20/2022]
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18
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Mahmud F, Chung SW, Alam F, Choi JU, Kim SW, Kim IS, Kim SY, Lee DS, Byun Y. Metronomic chemotherapy using orally active carboplatin/deoxycholate complex to maintain drug concentration within a tolerable range for effective cancer management. J Control Release 2017; 249:42-52. [PMID: 28093298 DOI: 10.1016/j.jconrel.2017.01.020] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 12/16/2016] [Accepted: 01/12/2017] [Indexed: 11/26/2022]
Abstract
Metronomic chemotherapy has translated into favorable toxicity profile and capable of delaying tumor progression. Despite its promise, conventional injectable chemotherapeutics are not meaningful to use as metronomic due to the necessity of frequent administration for personalized therapy in long-term cancer treatments. This study aims to exploit the benefits of the oral application of carboplatin as metronomic therapy for non-small cell lung cancer (NSCLC). We developed an orally active carboplatin by physical complexation with a deoxycholic acid (DOCA). The X-ray diffraction (XRD) patterns showed the disappearance of crystalline peaks from carboplatin by forming the complex with DOCA. In vivo pharmacokinetic (PK) study confirmed the oral absorption of carboplatin/DOCA complex. The oral bioavailability of carboplatin/DOCA complex and native carboplatin were calculated as 24.33% and 1.16%, respectively, when a single 50mg/kg oral dose was administered. Further findings of oral bioavailability during a low-dose daily administration of the complex (10mg/kg) for 3weeks were showed 19.17% at day-0, 30.27% at day-7, 26.77% at day-14, and 22.48% at day-21, demonstrating its potential for metronomic chemotherapy. The dose dependent antitumor effects of oral carboplatin were evaluated in SCC7 and A549 tumor xenograft mice. It was found that the oral carboplatin complex exhibited potent anti-tumor activity at 10mg/kg (74.09% vs. control, P<0.01) and 20mg/kg dose (86.22% vs. control, P<0.01) in A549 tumor. The number of TUNEL positive cells in the tumor sections was also significantly increased during oral therapy (3.95% in control, whereas 21.37% and 32.39% in 10mg/kg and 20mg/kg dose, respectively; P<0.001). The enhanced anti-tumor efficacy of oral metronomic therapy was attributed with its antiangiogenic mechanism where new blood vessel formation was notably decreased. Finally, the safety of oral complex was confirmed by three weeks toxicity studies; there were no significant systemic or local abnormalities found in mice at 10mg/kg daily oral dose. Our study thus describes an effective and safe oral formulation of carboplatin as a metronomic chemotherapy.
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Affiliation(s)
- Foyez Mahmud
- Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Seoul 151-742, South Korea
| | - Seung Woo Chung
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 151-742, South Korea
| | - Farzana Alam
- Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Seoul 151-742, South Korea
| | - Jeong Uk Choi
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 151-742, South Korea
| | - Seong Who Kim
- Department of Biochemistry and Molecular Biology, Asan Medical Center, College of Medicine, University of Ulsan, Seoul 138-736, South Korea
| | - In-San Kim
- Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Seoul 136-791, South Korea
| | - Sang Yoon Kim
- Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Seoul 136-791, South Korea; Department of Otolaryngology, Asan Medical Center, College of Medicine, University of Ulsan, Seoul 138-736, South Korea
| | - Dong Soo Lee
- Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Seoul 151-742, South Korea; Department of Nuclear Medicine, Seoul National University College of Medicine, Seoul 110-744, South Korea
| | - Youngro Byun
- Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Seoul 151-742, South Korea; Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 151-742, South Korea.
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19
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Lavanya N, Muzib YI, Aukunuru J, Balekari U. Preparation and evaluation of a novel oral delivery system for low molecular weight heparin. Int J Pharm Investig 2016; 6:148-57. [PMID: 27606258 PMCID: PMC4991123 DOI: 10.4103/2230-973x.187351] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVE The objective of the present work was to prepare and evaluate a novel oral formulation for systemic delivery of low molecular weight heparin (LMWH). The formulation consisted of Eudragit S 100-coated positively charged liposomes encapsulating LMWH and a penetration enhancer. MATERIALS AND METHODS Positively charged liposomes were first prepared by the thin film hydration method using lipid (soy phosphotidylcholine and cholesterol) and stearyl amine (SA) in the optimum ratio of 16:1, along with cetylpyridinium chloride (CPC) as a penetration enhancer. Prepared liposomes were coated with negatively charged Eudragit S 100 (0.3% w/v). The formulations were studied for various in vitro and in vivo properties. Differential scanning calorimetry (DSC), x-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR) studies, and in vitro drug release were used for in vitro characterization of the formulations. Ex vivo permeation studies were performed by using distal small intestine of rat. Oral absorption studies were conducted with the rat model. RESULTS Coating of the liposomes was confirmed by SEM and particle size determination studies. In vitro release studies of coated liposomes have demonstrated that the release of LMWH was in the following order: Stomach < small intestine < distal small intestine < colon. Ex vivo permeation studies have shown a fivefold increase in permeation of LMWH with Eudragit S 100-coated liposomes compared to uncoated, uncharged liposomes. Oral absorption studies have showed that with Eudragit-coated liposomes, the oral bioavailability of LMWH was improved, compared to plain LMWH solution. This is revealed by a threefold increase in the area under the curve (AUC) of the plasma concentration time curve. CONCLUSION A novel formulation for oral delivery of LMWH was thus successfully prepared and evaluated.
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Affiliation(s)
- Nallaguntla Lavanya
- Department of Pharmaceutics, Vaagdevi College of Pharmacy, Hanamkonda, Warangal, Telangana, India
| | - Yallamalli Indira Muzib
- Department of Pharmaceutics, Institute of Pharmaceutical Technology, Sri Padmavathi Mahila University, Tirupathi, Andhra Pradesh, India
| | - Jithan Aukunuru
- Department of Pharmaceutics, Mother Teresa College of Pharmacy, Hyderabad, Telangana, India
| | - Umamahesh Balekari
- Faculty of Pharmacy, University College of Pharmaceutical Sciences, Kakatiya University, Warangal, Telangana, India
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20
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21
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Strategies to Overcome Heparins' Low Oral Bioavailability. Pharmaceuticals (Basel) 2016; 9:ph9030037. [PMID: 27367704 PMCID: PMC5039490 DOI: 10.3390/ph9030037] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Revised: 06/15/2016] [Accepted: 06/23/2016] [Indexed: 01/10/2023] Open
Abstract
Even after a century, heparin is still the most effective anticoagulant available with few side effects. The poor oral absorption of heparins triggered the search for strategies to achieve oral bioavailability since this route has evident advantages over parenteral administration. Several approaches emerged, such as conjugation of heparins with bile acids and lipids, formulation with penetration enhancers, and encapsulation of heparins in micro and nanoparticles. Some of these strategies appear to have potential as good delivery systems to overcome heparin’s low oral bioavailability. Nevertheless, none have reached the market yet. Overall, this review aims to provide insights regarding the oral bioavailability of heparin.
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22
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Aljuffali IA, Lin CF, Chen CH, Fang JY. The codrug approach for facilitating drug delivery and bioactivity. Expert Opin Drug Deliv 2016; 13:1311-25. [DOI: 10.1080/17425247.2016.1187598] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Ibrahim A. Aljuffali
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Chwan-Fwu Lin
- Department of Cosmetic Science, Chang Gung University of Science and Technology, Taoyuan, Taiwan
| | - Chun-Han Chen
- Division of General Surgery, Department of Surgery, Chang Gung Memorial Hospital, Chiayi, Taiwan
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Jia-You Fang
- Pharmaceutics Laboratory, Graduate Institute of Natural Products, Chang Gung University, Taoyuan, Taiwan
- Chinese Herbal Medicine Research Team, Healthy Aging Research Center, Chang Gung University, Taoyuan, Taiwan
- Research Center for Industry of Human Ecology, Chang Gung University of Science and Technology, Taoyuan, Taiwan
- Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan, Taiwan
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23
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Chakravarty R, Hong H, Cai W. Image-Guided Drug Delivery with Single-Photon Emission Computed Tomography: A Review of Literature. Curr Drug Targets 2016; 16:592-609. [PMID: 25182469 DOI: 10.2174/1389450115666140902125657] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2014] [Revised: 08/24/2014] [Accepted: 08/26/2014] [Indexed: 12/18/2022]
Abstract
Tremendous resources are being invested all over the world for prevention, diagnosis, and treatment of various types of cancer. Successful cancer management depends on accurate diagnosis of the disease along with precise therapeutic protocol. The conventional systemic drug delivery approaches generally cannot completely remove the competent cancer cells without surpassing the toxicity limits to normal tissues. Therefore, development of efficient drug delivery systems holds prime importance in medicine and healthcare. Also, molecular imaging can play an increasingly important and revolutionizing role in disease management. Synergistic use of molecular imaging and targeted drug delivery approaches provides unique opportunities in a relatively new area called 'image-guided drug delivery' (IGDD). Single-photon emission computed tomography (SPECT) is the most widely used nuclear imaging modality in clinical context and is increasingly being used to guide targeted therapeutics. The innovations in material science have fueled the development of efficient drug carriers based on, polymers, liposomes, micelles, dendrimers, microparticles, nanoparticles, etc. Efficient utilization of these drug carriers along with SPECT imaging technology have the potential to transform patient care by personalizing therapy to the individual patient, lessening the invasiveness of conventional treatment procedures and rapidly monitoring the therapeutic efficacy. SPECT-IGDD is not only effective for the treatment of cancer but might also find utility in the management of several other diseases. Herein, we provide a concise overview of the latest advances in SPECT-IGDD procedures and discuss the challenges and opportunities for advancement of the field.
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Affiliation(s)
- Rubel Chakravarty
- Isotope Production and Applications Division, Bhabha Atomic Research Centre, Mumbai 400 085, India.
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24
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Solubilization and Interaction Studies of Bile Salts with Surfactants and Drugs: a Review. Appl Biochem Biotechnol 2016; 179:179-201. [PMID: 26781714 DOI: 10.1007/s12010-016-1987-x] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Accepted: 01/10/2016] [Indexed: 01/10/2023]
Abstract
In this review, bile salt, bile salt-surfactant, and bile salt-drug interactions and their solubilization studies are mainly focused. Usefulness of bile salts in digestion, absorption, and excretion of various compounds and their rare properties in ordering the shape and size of the micelles owing to the presence of hydrophobic and hydrophilic faces are taken into consideration while compiling this review. Bile salts as potential bio-surfactants to solubilize drugs of interest are also highlighted. This review will give an insight into the selection of drugs in different applications as their properties get modified by interaction with bile salts, thus influencing their solution behavior which, in turn, modifies the phase-forming behavior, microemulsion, and clouding phenomenon, besides solubilization. Finally, their future perspectives are taken into consideration to assess their possible uses as bio-surfactants without side effects to human beings.
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25
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Hales D, Casteran M, Sapin-Minet A, Tomuţa I, Achim M, Vlase L, Maincent P. Development of enoxaparin sodium polymeric microparticles for colon-specific delivery. Med Pharm Rep 2015; 88:357-65. [PMID: 26609270 PMCID: PMC4632896 DOI: 10.15386/cjmed-442] [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: 04/06/2015] [Accepted: 04/23/2015] [Indexed: 12/31/2022] Open
Abstract
Background and aims Recent studies have shown that low molecular weight heparins are effective in the treatment of inflammatory bowel disease. Therefore, there is considerable interest in the development of an oral colonic delivery pharmaceutical system allowing targeted release of heparin in the inflamed tissue. The objective of this study was to prepare microparticles for the oral administration and colonic release of enoxaparin and to evaluate the influence of certain formulation factors on their characteristics. Methods Microparticles were prepared by water/oil/water double emulsion technique followed by solvent evaporation. The influence of several formulation factors on the characteristics of microparticles were evaluated. The formulation factors were alginate concentration in the inner aqueous phase, polymer (Eudragit® FS 30D and Eudragit® RS PO) concentration in the organic phase and ratios between the two polymers. The microparticles were characterized in terms of morphology, size, entrapment efficiency and enoxaparin release. Results The results showed that increasing sodium alginate percentage reduced the encapsulation efficiency of enoxaparin and accelerated enoxaparin release. Regarding the influence of the two polymers, reducing polymer concentration in the organic phase led to a smaller size of microparticles, a lower entrapment efficiency and an important retardation of enoxaparin release. The formulation prepared with Eudragit® FS 30D limited the release to a maximum of 3% in gastric simulated environment, a specific characteristic of oral systems for colonic delivery, and fulfilled our objective to delay the release. Conclusions Microparticles prepared with Eudragit® FS 30D represent a suitable and potential oral system for the colonic delivery of enoxaparin.
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Affiliation(s)
- Dana Hales
- Department of Pharmaceutical Technology and Biopharmacy, Faculty of Pharmacy, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Maxime Casteran
- Department of CITHEFOR, EA 3452, Université de Lorraine, France
| | | | - Ioan Tomuţa
- Department of Pharmaceutical Technology and Biopharmacy, Faculty of Pharmacy, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Marcela Achim
- Department of Pharmaceutical Technology and Biopharmacy, Faculty of Pharmacy, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Laurian Vlase
- Department of Pharmaceutical Technology and Biopharmacy, Faculty of Pharmacy, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
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26
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Han X, Wang Z, Wang M, Li J, Xu Y, He R, Guan H, Yue Z, Gong M. Liver-targeting self-assembled hyaluronic acid-glycyrrhetinic acid micelles enhance hepato-protective effect of silybin after oral administration. Drug Deliv 2015; 23:1818-29. [PMID: 26556526 DOI: 10.3109/10717544.2015.1108374] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
In order to enhance oral bioavailability and liver targeting delivery of silybin, two amphiphilic hyaluronic acid derivatives, hyaluronic acid-deoxycholic acid (HA-adh-DOCA) and hyaluronic acid-glycyrrhetinic acid (HA-adh-GA) conjugates, were designed and synthesized. Silybin was successfully loaded in HA-adh-DOCA and HA-adh-GA micelles with high drug-loading capacities (20.3% ± 0.5% and 20.6% ± 0.6%, respectively). The silybin-loaded micelles were spherical in shape with the average size around 130 nm. In vitro release study showed that two silybin-loaded micelles displayed similar steady continued-release pattern in simulated gastrointestinal fluids and PBS. Single-pass intestinal perfusion studies indicated that silybin-loaded micelles were absorbed in the whole intestine and transported via a passive diffusion mechanism. Compared with suspension formulation, silybin-loaded HA-adh-DOCA and HA-adh-GA micelles achieved significantly higher AUC and Cmax level. Moreover, liver targeting drug delivery of micelles was confirmed by in vivo imaging analysis. In comparison between the two micellar formulations, HA-adh-GA micelles possessed higher targeting capacity than HA-adh-DOCA micelles, owing to the active hepatic targeting properties of glycyrrhetinic acid. In the treatment of acute liver injury induced by CCl4, silybin-loaded HA-adh-GA micelles displayed better effects over suspension control and silybin-loaded HA-adh-DOCA micelles. Overall, pharmaceutical and pharmacological indicators suggested that the HA-adh-GA conjugates can be successfully utilized for liver targeting of orally administered therapeutics.
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Affiliation(s)
- Xiaofeng Han
- a Beijing Key Lab of TCM Collateral Disease Theory Research, School of Traditional Chinese Medicine, Capital Medical University , Beijing , P. R. China and
| | - Zhe Wang
- a Beijing Key Lab of TCM Collateral Disease Theory Research, School of Traditional Chinese Medicine, Capital Medical University , Beijing , P. R. China and
| | - Manyuan Wang
- a Beijing Key Lab of TCM Collateral Disease Theory Research, School of Traditional Chinese Medicine, Capital Medical University , Beijing , P. R. China and
| | - Jing Li
- a Beijing Key Lab of TCM Collateral Disease Theory Research, School of Traditional Chinese Medicine, Capital Medical University , Beijing , P. R. China and
| | - Yongsong Xu
- a Beijing Key Lab of TCM Collateral Disease Theory Research, School of Traditional Chinese Medicine, Capital Medical University , Beijing , P. R. China and
| | - Rui He
- a Beijing Key Lab of TCM Collateral Disease Theory Research, School of Traditional Chinese Medicine, Capital Medical University , Beijing , P. R. China and
| | - Hongyu Guan
- a Beijing Key Lab of TCM Collateral Disease Theory Research, School of Traditional Chinese Medicine, Capital Medical University , Beijing , P. R. China and
| | - Zhujun Yue
- b Beijing YouAn Hospital, Capital Medical University , Beijing , P. R. China
| | - Muxin Gong
- a Beijing Key Lab of TCM Collateral Disease Theory Research, School of Traditional Chinese Medicine, Capital Medical University , Beijing , P. R. China and
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27
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Trends in the development of oral anticoagulants. Ther Deliv 2015; 6:685-703. [DOI: 10.4155/tde.15.22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Anticoagulation remains the therapy of choice for the prevention and treatment of venous and arterial thromboembolic disorders which can cause major organ damage or death. Heparins represent the antithrombotic drugs of choice in short and medium-term prophylaxis and therapy of thromboembolic diseases. Fondaparinux, a synthetic and structural analog of the antithrombin-binding pentasaccharide domain of heparin, has selective anti-Xa activity and longer half-life. However, anticoagulants are poorly absorbed by oral route because of their high molecular weight, hydrophilicity and negative charges. Long-term anticoagulation therapy is problematic because of side effects and frequent monitoring. Formulation approaches are particularly promising.
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Park J, Al-Hilal TA, Jeong JH, Choi JU, Byun Y. Design, Synthesis, and Therapeutic Evaluation of Poly(acrylic acid)-tetraDOCA Conjugate as a Bile Acid Transporter Inhibitor. Bioconjug Chem 2015; 26:1597-605. [PMID: 26086474 DOI: 10.1021/acs.bioconjchem.5b00230] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Regulation of cholesterol and bile acid homeostasis has been attracting attention as a pharmaceutical target for the treatment of diseases, such as hypercholesterolaemia and type 2 diabetes. In recent years, small bile acid analogues have been developed for the purpose of apical sodium-dependent bile acid transporter (ASBT) inhibition. Here, we designed a novel hydrophilic ASBT inhibitor using oligomeric bile acid with a high affinity with ASBT. Polyacrylic acid-tetraDOCA conjugates (PATD) have the ability to bind to ASBT in order to induce hypocholesterolemic effects. Both the viability and the functionality of PATD were evaluated in vitro, showing that PATDs were effective in inhibiting the increases of cholesterol in the blood and oil in the liver induced by high fat diet (HFD). The results indicated that the newly developed biomaterials with oligomeric bile acids and a hydrophilic polymer are potent therapeutic agents for hyperlipidemia.
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Affiliation(s)
| | - Taslim A Al-Hilal
- ‡Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul 136-791, South Korea
| | - Jee-Heon Jeong
- §College of Pharmacy, Yeungnam University, Gyeongsan 712-749, South Korea
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Park J, Jeong JH, Al-Hilal TA, Kim JY, Byun Y. Size Controlled Heparin Fragment–Deoxycholic Acid Conjugate Showed Anticancer Property by Inhibiting VEGF165. Bioconjug Chem 2015; 26:932-40. [DOI: 10.1021/acs.bioconjchem.5b00133] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - Jee-Heon Jeong
- College
of Pharmacy, Yeungnam University, Gyeongsan 712-749, Gyeongbuk South Korea
| | - Taslim A. Al-Hilal
- Center
for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul 136-791, South Korea
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30
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Mahmud F, Jeon OC, Al-Hilal TA, Kweon S, Yang VC, Lee DS, Byun Y. Absorption Mechanism of a Physical Complex of Monomeric Insulin and Deoxycholyl-l-lysyl-methylester in the Small Intestine. Mol Pharm 2015; 12:1911-20. [PMID: 25892399 DOI: 10.1021/mp500626a] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Currently, oral administration of insulin still remains the best option to avoid the burden of repeated subcutaneous injections and to improve its pharmacokinetics. The objective of the present investigation was to demonstrate the absorption mechanism of insulin in the physical complexation of deoxycholyl-l-lysyl-methylester (DCK) for oral delivery. The oral insulin/DCK complex was prepared by making a physical complex of insulin aspart with DCK through ion-pair interaction in water. For the cellular uptake study, fluorescein-labeled insulin or DCK were prepared according to a standard protocol and applied to Caco-2 or MDCK cell lines. For the PK/PD studies, we performed intrajejunal administration of different formulation of insulin/DCK complex to diabetic rats. The resulting insulin and DCK complex demonstrated greatly enhanced lipophilicity as well as increased permeation across Caco-2 monolayers. The immunofluorescence study revealed the distribution of the complex in the cytoplasm of Caco-2 cells. Moreover, in the apical sodium bile acid transporter (ASBT) transfected MDCK, the insulin/DCK complex showed interaction with ASBT, and also demonstrated absorption through passive diffusion. We could not find that any evidence of endocytosis in relation to the uptake of insulin complex in vitro. In the rat intestine model, the highest absorption of insulin complex was observed in the jejunum at 1 h and then in the ileum at 2-4 h. In PK/PD study, the complex showed a similar PK profile to that of SC insulin. Overall, the study showed that the effect of DCK on enhancing the absorption of insulin resulted from transcellular processes as well as bile acid transporter activity.
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Affiliation(s)
- Foyez Mahmud
- †Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Seoul 151-742, South Korea
| | - Ok-Cheol Jeon
- †Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Seoul 151-742, South Korea
| | - Taslim A Al-Hilal
- ‡Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 151-742, South Korea
| | - Seho Kweon
- †Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Seoul 151-742, South Korea
| | - Victor C Yang
- †Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Seoul 151-742, South Korea.,§Department of Pharmaceutical Sciences, College of Pharmacy, University of Michigan, Ann Arbor, Michigan 48109-1065, United States
| | - Dong Soo Lee
- †Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Seoul 151-742, South Korea.,∥Department of Nuclear Medicine, Seoul National University College of Medicine, Seoul 110-744, South Korea
| | - Youngro Byun
- †Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Seoul 151-742, South Korea.,‡Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 151-742, South Korea
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31
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Kim JY, Jeon OC, Moon HT, Hwang SR, Byun Y. Preclinical safety evaluation of low molecular weight heparin-deoxycholate conjugates as an oral anticoagulant. J Appl Toxicol 2015; 36:76-93. [PMID: 25900269 DOI: 10.1002/jat.3146] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Revised: 02/06/2015] [Accepted: 02/09/2015] [Indexed: 11/06/2022]
Abstract
The preclinical safety of a newly developed oral anticoagulant, the low molecular weight heparin-deoxycholate conjugate (OH09208), was evaluated by a comprehensive evaluating program in compliance with standard guidelines. The single dose oral toxicity study in rats receiving 2000 and 5000 mg kg(-1) of OH09208 did not reveal any mortality, unusual body weight changes or necropsy findings. The results of the 4-week oral toxicity study with a 4-week recovery program in rats receiving OH09208 in doses of 100, 300 and 1000 mg kg(-1) day(-1) did not reveal any mortality, or indicate any unusual clinical signs, or show any toxicokinetic relationships to the administration of OH09208. Although the increase in liver enzymes in one male dog treated with 300 mg kg(-1) day(-1) and one female dog treated with 1000 mg kg(-1) day(-1) could not be excluded from the effect of the test substance, no other toxicologically significant changes were observed in the 4-week oral toxicity study with a 4-week recovery in beagle dogs. Thus, while the no-observed-adverse-effect level value from the 4-week study in both male and female rats was 1000 mg kg(-1) day(-1), those from the 4-week study in male and female beagle dogs were 300 and 1000 mg kg(-1) day(-1), respectively. Furthermore, OH09208 did not induce anaphylactic reactions in guinea pigs, micronucleated bone marrow cells in male ICR mice, chromosomal aberration in Chinese hamster lung cell lines, bacterial reverse mutation, and any abnormalities in hERG current assay, mouse central nervous system and dog cardiovascular studies. Overall, there were no unexpected toxicities in this preclinical study that might have precluded the safe administration of OH09208 to humans.
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Affiliation(s)
- Ji-young Kim
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, South Korea
| | - Ok-Cheol Jeon
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, South Korea
| | - Hyun Tae Moon
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, South Korea
| | - Seung Rim Hwang
- College of Pharmacy, Chosun University, Dong-gu, Gwangju, South Korea
| | - Youngro Byun
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, South Korea.,Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, South Korea
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Murphy A, Sheehy K, Casey A, Chambers G. Potential of biofluid components to modify silver nanoparticle toxicity. J Appl Toxicol 2015; 35:665-80. [DOI: 10.1002/jat.3123] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Revised: 12/23/2014] [Accepted: 12/23/2014] [Indexed: 01/22/2023]
Affiliation(s)
- Anna Murphy
- Nanolab Research Centre, Focas Institute; Dublin Institute of Technology; Kevin Street Dublin 8 Ireland
| | - Kate Sheehy
- Nanolab Research Centre, Focas Institute; Dublin Institute of Technology; Kevin Street Dublin 8 Ireland
| | - Alan Casey
- Nanolab Research Centre, Focas Institute; Dublin Institute of Technology; Kevin Street Dublin 8 Ireland
| | - Gordon Chambers
- Nanolab Research Centre, Focas Institute; Dublin Institute of Technology; Kevin Street Dublin 8 Ireland
- School of Physics; Dublin Institute of Technology; Kevin Street Dublin 8 Ireland
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33
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Kim JY, Alam F, Chung SW, Park J, Jeon OC, Kim SY, Son WC, Byun Y. Combinational chemoprevention effect of celecoxib and an oral antiangiogenic LHD4 on colorectal carcinogenesis in mice. Anticancer Drugs 2014; 25:1061-71. [DOI: 10.1097/cad.0000000000000141] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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34
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35
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Enhanced effects of osteoclastogenesis inhibition by curcumin-delivering heparin nanoparticles. Macromol Res 2014. [DOI: 10.1007/s13233-014-2082-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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36
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Alam F, Al-Hilal TA, Chung SW, Seo D, Mahmud F, Kim HS, Kim SY, Byun Y. Oral delivery of a potent anti-angiogenic heparin conjugate by chemical conjugation and physical complexation using deoxycholic acid. Biomaterials 2014; 35:6543-52. [PMID: 24816287 DOI: 10.1016/j.biomaterials.2014.04.050] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2014] [Accepted: 04/13/2014] [Indexed: 12/31/2022]
Abstract
Angiogenesis, the formation of new blood vessels, plays a pivotal role in tumor progression and for this reason angiogenesis inhibitors are an important class of therapeutics for cancer treatment. Heparin-based angiogenesis inhibitors have been newly developed as one of such classes of therapeutics and possess a great promise in the clinical context. Taurocholate conjugated low molecular weight heparin derivative (LHT7) has been proven to be a potent, multi-targeting angiogenesis inhibitor against broad-spectrum angiogenic tumors. However, major limitations of LHT7 are its poor oral bioavailability, short half-life, and frequent parenteral dosing schedule. Addressing these issues, we have developed an oral formulation of LHT7 by chemically conjugating LHT7 with a tetrameric deoxycholic acid named LHTD4, and then physically complexing it with deoxycholylethylamine (DCK). The resulting LHTD4/DCK complex showed significantly enhanced oral bioavailability (34.3 ± 2.89%) and prolonged the mean residence time (7.5 ± 0.5 h). The LHTD4/DCK complex was mostly absorbed in the intestine by transcellular pathway via its interaction with apical sodium bile acid transporter. In vitro, the VEGF-induced sprouting of endothelial spheroids was significantly blocked by LHTD4. LHTD4/DCK complex significantly regressed the total vessel fractions of tumor (77.2 ± 3.9%), as analyzed by X-ray microCT angiography, thereby inhibiting tumor growth in vivo. Using the oral route of administration, we showed that LHTD4/DCK complex could be effective and chronically administered as angiogenesis inhibitor.
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Affiliation(s)
- Farzana Alam
- Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, College of Pharmacy, Seoul National University, Seoul 151-742, South Korea
| | - Taslim A Al-Hilal
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 151-742, South Korea
| | - Seung Woo Chung
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 151-742, South Korea
| | - Donghyun Seo
- Department of Biomedical Engineering, Computer and Biomedical Engineering, Medical Industry Techno Tower R307, Yonsei University, Wonju, Gangwon 220-710, South Korea
| | - Foyez Mahmud
- Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, College of Pharmacy, Seoul National University, Seoul 151-742, South Korea
| | - Han Sung Kim
- Department of Biomedical Engineering, Computer and Biomedical Engineering, Medical Industry Techno Tower R307, Yonsei University, Wonju, Gangwon 220-710, South Korea
| | - Sang Yoon Kim
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul 136-791, South Korea; Department of Otolaryngology, Asan Medical Center, College of Medicine, University of Ulsan, Seoul 138-736, South Korea
| | - Youngro Byun
- Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, College of Pharmacy, Seoul National University, Seoul 151-742, South Korea; Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 151-742, South Korea.
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37
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Zhang H, Mi J, Huo Y, Huang X, Xing J, Yamamoto A, Gao Y. Absorption enhancing effects of chitosan oligomers on the intestinal absorption of low molecular weight heparin in rats. Int J Pharm 2014; 466:156-62. [DOI: 10.1016/j.ijpharm.2014.03.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2013] [Revised: 02/13/2014] [Accepted: 03/02/2014] [Indexed: 10/25/2022]
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38
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Oral absorption mechanism and anti-angiogenesis effect of taurocholic acid-linked heparin-docetaxel conjugates. J Control Release 2014; 177:64-73. [DOI: 10.1016/j.jconrel.2013.12.034] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2013] [Revised: 12/23/2013] [Accepted: 12/29/2013] [Indexed: 12/20/2022]
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Enhancing the intestinal absorption of low molecular weight chondroitin sulfate by conjugation with α-linolenic acid and the transport mechanism of the conjugates. Int J Pharm 2014; 465:143-58. [PMID: 24524826 DOI: 10.1016/j.ijpharm.2014.02.009] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2013] [Revised: 01/13/2014] [Accepted: 02/07/2014] [Indexed: 11/24/2022]
Abstract
The purpose of this report was to demonstrate the effect of amphiphilic polysaccharides-based self-assembling micelles on enhancing the oral absorption of low molecular weight chondroitin sulfate (LMCS) in vitro and in vivo, and identify the transepithelial transport mechanism of LMCS micelles across the intestinal barrier. α-Linolenic acid-low molecular weight chondroitin sulfate polymers(α-LNA-LMCS) were successfully synthesized, and characterized by FTIR, (1)HNMR, TGA/DSC, TEM, laser light scattering and zeta potential. The significant oral absorption enhancement and elimination half-life (t₁/₂) extension of LNA-LMCS2 in rats were evidenced by intragastric administration in comparison with CS and LMCS. Caco-2 transport studies demonstrated that the apparent permeability coefficient (Papp) of LNA-LMCS2 was significantly higher than that of CS and LMCS (p<0.001), and no significant effects on the overall integrity of the monolayer were observed during the transport process. In addition, α-LNA-LMCS micelles accumulated around the cell membrane and intercellular space observed by confocal laser scanning microscope (CLSM). Furthermore, evident alterations in the F-actin cytoskeleton were detected by CLSM observation following the treatment of the cell monolayers with α-LNA-LMCS micelles, which further certified the capacity of α-LNA-LMCS micelles to open the intercellular tight junctions rather than disrupt the overall integrity of the monolayer. Therefore, LNA-LMCS2 with low cytotoxicity and high bioavailability might be a promising substitute for CS in clinical use, such as treating osteoarthritis, atherosclerosis, etc.
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Fernández-Llamazares AI, Adan J, Mitjans F, Spengler J, Albericio F. Tackling Lipophilicity of Peptide Drugs: Replacement of the Backbone N-Methyl Group of Cilengitide by N-Oligoethylene Glycol (N-OEG) Chains. Bioconjug Chem 2013; 25:11-7. [DOI: 10.1021/bc4003844] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | | | | | - Fernando Albericio
- Department
of Organic Chemistry, University of Barcelona, Martí i Franqués 1-11, 08028 Barcelona, Spain
- School of Chemistry & Physics, University of KwaZulua-Natal, 4001 Durban, South Africa
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Al-Hilal TA, Park J, Alam F, Chung SW, Park JW, Kim K, Kwon IC, Kim IS, Kim SY, Byun Y. Oligomeric bile acid-mediated oral delivery of low molecular weight heparin. J Control Release 2013; 175:17-24. [PMID: 24333628 DOI: 10.1016/j.jconrel.2013.12.001] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2013] [Revised: 11/19/2013] [Accepted: 12/03/2013] [Indexed: 10/25/2022]
Abstract
Intestinal transporters are limited to the transport of small molecular substrates. Here, we describe the development of apical sodium-dependent bile acid transporter (ASBT)-targeted high-affinity oligomeric bile acid substrates that mediate the transmembrane transport of low molecular weight heparin (LMWH). Several oligomers of deoxycholic acid (oligoDOCA) were synthesized to investigate the substrate specificity of ASBT. To see the binding of oligoDOCA on the substrate-binding pocket of ASBT, molecular docking was used and the dissociation rate constants (KD) were measured using surface plasmon resonance. The KD for tetrameric DOCA (tetraDOCA) was 50-fold lower than that for monomeric DOCA, because tetraDOCA interacted with several hydrophobic grooves in the substrate-binding pocket of ASBT. The synthesized oligoDOCA compounds were subsequently chemically conjugated to macromolecular LMWH. In vitro, tetraDOCA-conjugated LMWH (LHe-tetraD) had highest selectivity for ASBT during its transport. Orally administered LHe-tetraD showed remarkable systemic anticoagulation activity and high oral bioavailability of 33.5±3.2% and 19.9±2.5% in rats and monkeys, respectively. Notably, LHe-tetraD successfully prevented thrombosis in a rat model of deep vein thrombosis. These results represent a major advancement in ASBT-mediated LMWH delivery and may facilitate administration of many important therapeutic macromolecules through a non-invasive oral route.
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Affiliation(s)
- Taslim A Al-Hilal
- College of Pharmacy, Seoul National University, Seoul 151-742, South Korea
| | - Jooho Park
- College of Pharmacy, Seoul National University, Seoul 151-742, South Korea
| | - Farzana Alam
- Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Seoul 151-742, South Korea
| | - Seung Woo Chung
- College of Pharmacy, Seoul National University, Seoul 151-742, South Korea
| | - Jin Woo Park
- College of Pharmacy, Mokpo National University, Mokpo 534-729, South Korea
| | - Kwangmeyung Kim
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul 136-791, South Korea
| | - Ick Chan Kwon
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul 136-791, South Korea
| | - In-San Kim
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul 136-791, South Korea; Department of Biochemistry and Cell Biology, School of Medicine, Kyungpook National University, Daegu 700-422, South Korea
| | - Sang Yoon Kim
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul 136-791, South Korea; Department of Otolaryngology, Asan Medical Center, College of Medicine, University of Ulsan, Seoul 138-736, South Korea
| | - Youngro Byun
- College of Pharmacy, Seoul National University, Seoul 151-742, South Korea; Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Seoul 151-742, South Korea.
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Al-Hilal TA, Alam F, Byun Y. Oral drug delivery systems using chemical conjugates or physical complexes. Adv Drug Deliv Rev 2013; 65:845-64. [PMID: 23220326 DOI: 10.1016/j.addr.2012.11.002] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2012] [Revised: 11/25/2012] [Accepted: 11/27/2012] [Indexed: 02/07/2023]
Abstract
Oral delivery of therapeutics is extremely challenging. The digestive system is designed in a way that naturally allows the degradation of proteins or peptides into small molecules prior to absorption. For systemic absorption, the intact drug molecules must traverse the impending harsh gastrointestinal environment. Technologies, such as enteric coating, with oral dosage formulation strategies have successfully provided the protection of non-peptide based therapeutics against the harsh, acidic condition of the stomach. However, these technologies showed limited success on the protection of therapeutic proteins and peptides. Importantly, inherent permeability coefficient of the therapeutics is still a major problem that has remained unresolved for decades. Addressing this issue in the context, we summarize the strategies that are developed in enhancing the intestinal permeability of a drug molecule either by modifying the intestinal epithelium or by modifying the drug itself. These modifications have been pursued by using a group of molecules that can be conjugated to the drug molecule to alter the cell permeability of the drug or mixed with the drug molecule to alter the epithelial barrier function, in order to achieve the effective drug permeation. This article will address the current trends and future perspectives of the oral delivery strategies.
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Affiliation(s)
- Taslim A Al-Hilal
- College of Pharmacy, Seoul National University, Seoul 151-742, South Korea
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Oral delivery of low molecular weight heparin by polyaminomethacrylate coacervates. Pharm Res 2013; 30:1990-8. [PMID: 23649851 DOI: 10.1007/s11095-013-1043-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2013] [Accepted: 03/29/2013] [Indexed: 10/26/2022]
Abstract
PURPOSE Oral bioavailability of low molecular weight heparin (LMWH) can be achieved by several advanced drug delivery approaches. Here, a new preparation method for coacervates (CAs) using non-toxic polyethylene glycol derivates was developed. METHODS LMWH were coacervated with polyaminomethacrylates (Eudragit® RL or RS) using polyethylene glycol (PEG) derivatives as non-toxic solvents. CAs were analyzed for their physicochemical properties and pharmacokinetic parameters were determined for different formulations in rabbits. RESULTS CAs from both polymer types using various PEGs were of irregular shape and had particle sizes of around 40 μm, encapsulation efficiencies of >90%, and complete LMWH in vitro release was obtained within 2 h. In vivo, oral Absorption at doses of 300 IU/kg was rather low (F < 2.5%) while dose increase resulted in a maximum at 600 IU/kg (FRL: 6.0 ± 1.2%; FRS: 5.8 ± 2.5%) and 1,200 IU/kg did not result in higher bioavailability (FRL: 4.6 ± 0.4%; FRS: 4.1 ± 0.8%). CAs were applicable to various LMWH types where the oral availability decreased in the order fondaparinux>enoxaparin>nadroparin>certoparin depending mainly on the molecular weight. CONCLUSIONS CAs prepared by an organic solvent-free method allowed the oral delivery of LMWHs. The therapeutic efficiency and the simple and solvent-free manufacturing process underlines the high potential of this new preparation method.
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44
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Tumour vasculature targeting agents in hybrid/conjugate drugs. Angiogenesis 2013; 16:503-24. [DOI: 10.1007/s10456-013-9347-8] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2013] [Accepted: 03/19/2013] [Indexed: 12/28/2022]
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45
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İskenderoğlu C, Acartürk F, Erdoğan D, Bardakçı Y. In vitroandin vivoinvestigation of low molecular weight heparin–alginate beads for oral administration. J Drug Target 2013; 21:389-406. [DOI: 10.3109/1061186x.2012.763040] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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46
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Jeon OC, Hwang SR, Al-Hilal TA, Park JW, Moon HT, Lee S, Park JH, Byun Y. Oral delivery of ionic complex of ceftriaxone with bile acid derivative in non-human primates. Pharm Res 2013; 30:959-67. [PMID: 23292220 DOI: 10.1007/s11095-012-0932-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2012] [Accepted: 11/05/2012] [Indexed: 11/30/2022]
Abstract
PURPOSE Since the absorption of ceftriaxone (CTO) in the intestine is restricted by its natural physiological characteristics, we developed a series of small synthetic compounds derived from bile acids to promote the absorption of CTO in the gastrointestinal tract. METHODS Several bile acid derivatives were screened by measuring water solubility and partition coefficient of their complexes with CTO. The pharmacokinetic parameters of the selected CTO/HDCK ionic complex in monkeys were evaluated. The absorption pathway of CTO/HDCK complex was evaluated using Caco-2 cells and MDCK cells transfected with ASBT gene. RESULTS HDCK enhanced the apparent membrane permeability of CTO 5.8-fold in the parallel artificial membrane permeability assay model. CTO/HDCK complex permeated Caco-2 cell via transcellular pathway, and interaction of the HDCK complex with ASBT was important to enhance uptake. When CTO/HDCK (equivalent to 50 mg/kg of ceftriaxone) formulated with lactose, poloxamer 407 and Labrasol was orally administered to monkeys, its maximum plasma concentration was 19.5 ± 1.8 μg/ml and oral bioavailability 28.5 ± 3.1%. CONCLUSIONS The CTO/HDCK formulation could enhance oral bioavailability of CTO in non-human primates. This oral formulation could be an alternative to injectable CTO with enhanced clinical effects.
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Affiliation(s)
- Ok-Cheol Jeon
- Department of Polymer Science and Engineering, Sungkyunkwan University, Suwon, 440-746, South Korea
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Imaging of the GI tract by QDs loaded heparin-deoxycholic acid (DOCA) nanoparticles. Carbohydr Polym 2012; 90:1461-8. [PMID: 22944403 DOI: 10.1016/j.carbpol.2012.07.016] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2011] [Accepted: 07/05/2012] [Indexed: 11/20/2022]
Abstract
This study presents an approach to deliver non invasive, near-IR imaging agent using oral delivery system. Low molecular weight heparin (LMWH)-deoxycholic acid (DOCA)/(LHD) nanoparticles formed by a self-assembly method was prepared to evaluate their physicochemical properties and oral absorption in vitro and in vivo. Near-IR QDs were prepared and loaded into LHD nanoparticles for imaging of the gastro-intestinal (GI) tract absorption. Q-LHD nanoparticles were almost spherical in shape with diameters of 194-217 nm. The size and fluorescent intensity of the Q-LHD nanoparticles were stable in 10% FBS solution and retained their fluorescent even after 5 days of incubation. Cell viability of Q-LHD nanoparticles maintained in the range of 80-95% for 24h incubation. No damage was found in tissues or organs during animal experiments. The in vivo oral absorption of Q-LHD was observed in SKH1 mice for 3h under different doses. From the results, we confirmed that Q-LHD was absorbed mostly into the ileum of small intestine containing intestinal bile acid transporter as observed in TEM and molecular imaging system. Our designed nanoparticles could be administered orally for bio-imaging and studying the bio-distribution of drug.
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Satyanarayana TBN, Maitra U, Savyasachi AJ. Synthesis of Cholic Acid Oligomer-Taurine Conjugates: A Study of Their Aggregation and Cholesterol Solubilization. European J Org Chem 2012. [DOI: 10.1002/ejoc.201200312] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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49
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Fareed J, Thethi I, Hoppensteadt D. Old versus new oral anticoagulants: focus on pharmacology. Annu Rev Pharmacol Toxicol 2011; 52:79-99. [PMID: 21819239 DOI: 10.1146/annurev-pharmtox-010611-134633] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Since the discovery of heparin nearly a century ago, there have been large gaps in the development of anticoagulants. The discovery of warfarin was the first step toward using oral anticoagulants, but warfarin use has been associated with its own challenges from the perspectives of the prescribing physician and the patient. Warfarin, along with other coumarins, has a narrow therapeutic index, requires frequent monitoring, exhibits interindividual response variations, and is associated with several adverse effects. Frequent drug and food interactions contribute to potential safety and efficacy compromise. The indications for use of oral anticoagulants have increased, as these drugs are used not only for thrombosis management but also for cardiovascular indications, producing more challenges for oral anticoagulant use. Factor Xa and thrombin targeting has provided a rational approach to develop new oral anticoagulants with improvements over warfarin. In this review, the pharmacology of warfarin and the pharmacology of the newly developed oral anti-Xa and antithrombin agents are discussed.
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Affiliation(s)
- Jawed Fareed
- Departments of Pathology and Pharmacology, Loyola University Medical Center, Maywood, Illinois 60153, USA.
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50
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Low molecular weight heparin-all-trans-retinoid acid conjugate as a drug carrier for combination cancer chemotherapy of paclitaxel and all-trans-retinoid acid. Carbohydr Polym 2011. [DOI: 10.1016/j.carbpol.2011.06.008] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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