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Gao R, Ren T, Feng J, Wang J, Weng Y, Yang R, Tang X. Improvement in the efficacy of dexketoprofen by its prodrug in lipid emulsion. EUR J LIPID SCI TECH 2013. [DOI: 10.1002/ejlt.201200168] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Renchao Gao
- College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, P. R. China
| | - Tianyang Ren
- College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, P. R. China
| | - Jia Feng
- College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, P. R. China
| | - Jing Wang
- College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, P. R. China
| | - Yan Weng
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi'an, P. R. China
| | - Rui Yang
- Shenzhen Salubris Pharmaceuticals Co., Ltd., Shenzhen, P. R. China
| | - Xing Tang
- College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, P. R. China
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Lin X, Zhang B, Zhang K, Zhang Y, Wang J, Qi N, Yang S, He H, Tang X. Preclinical evaluations of norcantharidin-loaded intravenous lipid microspheres with low toxicity. Expert Opin Drug Deliv 2012; 9:1449-62. [PMID: 22971185 DOI: 10.1517/17425247.2012.724675] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
OBJECTIVES The aim of this study was to perform a systematic preclinical evaluation of norcantharidin (NCTD)-loaded intravenous lipid microspheres (NLM). RESEARCH DESIGN AND METHODS Pharmacokinetics, biodistribution, antitumor efficacy and drug safety assessment (including acute toxicity, subchronic toxicity, hemolysis testing, intravenous stimulation and injection anaphylaxis) of NLM were carried out in comparison with the commercial product disodium norcantharidate injection (NI). RESULTS The pharmacokinetics of NLM in rats was similar to that of NI, and a non-linear correlation was observed between AUC and dose. A comparable antitumor efficacy of NLM and NI was observed in mice inoculated with A549, BEL7402 and BCAP-37 cell lines. It was worth noting that the NLM produced a lower drug concentration in heart compared with NI, and significantly reduced the cardiac and renal toxicity. The LD(50) of NLM was twice higher than that of NI. In NLM, over 80% of NCTD was loaded in the lipid phase or bound with phospholipids. Thus, NCTD was sequestered by direct contacting with body fluids and largely avoided distribution into tissues, consequently leading to significantly reduced cardiac and renal toxicity. CONCLUSIONS These preclinical results suggested that NLM could be a useful potential carrier for parenteral administration of NCTD, while providing a superior safety profile.
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Affiliation(s)
- Xia Lin
- Shenyang Pharmaceutical University, Department of Pharmaceutics Science, Wenhua Road 103 Shenyang 110016 Liaoning Province, People's Republic of China
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Development of intravenous lipid emulsion of tanshinone IIA and evaluation of its anti-hepatoma activity in vitro. Int J Pharm 2012; 424:76-88. [DOI: 10.1016/j.ijpharm.2011.12.049] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2011] [Revised: 12/03/2011] [Accepted: 12/25/2011] [Indexed: 01/09/2023]
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4
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Kojima R, Kasuya MCZ, Ishihara K, Hatanaka K. Physicochemical delivery of amphiphilic copolymers to specific organelles. Polym J 2011. [DOI: 10.1038/pj.2011.49] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Kandadi P, Syed MA, Goparaboina S, Veerabrahma K. Brain specific delivery of pegylated indinavir submicron lipid emulsions. Eur J Pharm Sci 2011; 42:423-32. [PMID: 21292000 DOI: 10.1016/j.ejps.2011.01.008] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2010] [Revised: 01/05/2011] [Accepted: 01/25/2011] [Indexed: 11/27/2022]
Abstract
The aim of this study was to develop stable parenteral pegylated indinavir submicron lipid emulsions (SLEs) for improving brain specific delivery. The O/W SLEs were prepared by homogenization and ultra sonication process. The sizes of oil globules varied from 241.5 to 296.4nm and zeta potential from -26.6 to -42.4mV. During in vitro drug release studies the cumulative amount of drug released within 12h from SLE-5, DSP2-3 and DPP5-3 was 71.8±0.76, 66.09±1.45 and 68.33±1.29, respectively. The total drug content and entrapment efficiencies were determined. The optimized formulations were stable for the effect of centrifugal stress, thermal stress, dilution stress and storage. In vivo pharmacokinetic and tissue distribution studies were performed in Swiss albino mice, the therapeutic availability (TA) of DSP2-3 was 3.59 times and 2.36 times in comparison to drug solution and SLE-5 respectively, where as DPP5-3 showed TA 2.8 and 1.84 times the drug solution and SLE-5, respectively. The brain to serum ratio of indinavir from DSP2-3 and DPP5-3 varied between 0.4 and 0.7 at all time points indicated the preferential accumulation of drug in brain. In conclusion, pegylated SLEs improved brain specific delivery of indinavir and will be useful in treating chronic HIV infection.
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Affiliation(s)
- Prabhakar Kandadi
- Nanotechnology Laboratory, Department of Pharmaceutics, University College of Pharmaceutical Sciences, Kakatiya University, Vidyaranya Puri, Warangal 506009, Andhra Pradesh, India
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Ganta S, Sharma P, Paxton JW, Baguley BC, Garg S. Pharmacokinetics and pharmacodynamics of chlorambucil delivered in long-circulating nanoemulsion. J Drug Target 2010; 18:125-33. [PMID: 19728787 DOI: 10.3109/10611860903244199] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Chlorambucil was incorporated into a nanoemulsion modified with poly(ethylene glycol) to improve its pharmacokinetics and tissue distribution, and thus enhance its therapeutic efficacy. A long-circulating nanoemulsion (LNE) was prepared using soybean oil, egg lecithin, cholesterol and PEG(2000)DSPE. The LNE had an oil droplet size <200 nm with a surface charge of -32.2 to -35.6 mV. Approximately, 97% of the chlorambucil was encapsulated in the LNE. Intravenous (i.v.) administration of the chlorambucil LNE to C57 B/6 mice showed improved pharmacokinetic parameters with 1.4-fold higher area under the plasma concentration-time curve (AUC) and 1.3-fold longer half-life compared to a non-PEG-modified nanoemulsion, and 2.7-fold higher AUC and 7.6-fold longer half-life compared to chlorambucil solution. Tissue distribution studies after i.v. administration with LNE showed a considerable decrease in drug uptake in the reticulo-endothelial system containing organs compared to non-PEG-modified nanoemulsion. Additionally, the chlorambucil delivered in LNE significantly enhanced therapeutic efficacy in the subcutaneous colon-38 adenocarcinoma tumor mouse model with no apparent increase in toxicity. This study suggests that LNE could produce remarkably improved pharmacokinetic profile and therapeutic efficacy of chlorambucil compared to non-PEG-modified nanoemulsion and solution.
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Affiliation(s)
- Srinivas Ganta
- School of Pharmacy, The University of Auckland, Auckland, New Zealand
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Cui Y, Lin X, Guan TT, Zhang Y, Tang X. A new rapid ultra-performance liquid chromatography method for the pharmacokinetic and bioavailability study of diclofenac sodium aqueous injection and lipid microsphere injection in rats. Biomed Chromatogr 2009; 24:406-12. [PMID: 19711299 DOI: 10.1002/bmc.1306] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
A novel, rapid and selective ultra performance liquid chromatography mass spectrometric method had been developed for the pharmacokinetic study of diclofenac sodium (DS) after single intravenous injection of DS aqueous injection and DS lipid microsphere (LM) injection in rats. Ketoprofen (KP) was used as internal standard. Samples were treated by a one-step liquid liquid extraction. Separation was performed on an Acquity UPLC BEH C(18) column (50 x 2.1 mm i.d., 1.7 mum). The mobile phase consisted of acetonitrile-0.1% ammonium hydroxide aqueous solution (20 : 80, v/v) initially in the gradient mode. The detection was carried out by means of electrospray ionization mass spectrometry in negative ion mode with multiple-reaction monitoring mode. Standard curves showed good linearity (r > 0.99) from the plasma concentration of 0.1-50 microg/mL. The lower limit of quantification was 0.1 microg/mL. The intra- and inter-day precisions and the accuracy all satisfied the acceptance criteria. The developed method was validated and successfully applied to the pharmacokinetics study of DS aqueous injection and LM injection. The results showed that the two preparations were bioequivalent in rats.
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Affiliation(s)
- Yue Cui
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, People's Republic of China
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Henricus MM, Johnson KT, Banerjee IA. Investigation of Insulin Loaded Self-Assembled Microtubules for Drug Release. Bioconjug Chem 2008; 19:2394-400. [DOI: 10.1021/bc800254n] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Marsiyana M. Henricus
- Department of Chemistry, Fordham University, 441 East Fordham Road, Bronx, New York 10458
| | - Karen T. Johnson
- Department of Chemistry, Fordham University, 441 East Fordham Road, Bronx, New York 10458
| | - Ipsita A. Banerjee
- Department of Chemistry, Fordham University, 441 East Fordham Road, Bronx, New York 10458
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Gerelli Y, Barbieri S, Di Bari MT, Deriu A, Cantù L, Brocca P, Sonvico F, Colombo P, May R, Motta S. Structure of self-organized multilayer nanoparticles for drug delivery. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2008; 24:11378-11384. [PMID: 18816016 DOI: 10.1021/la801992t] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The combined use of cryo-TEM, dynamic light scattering, and small-angle X-ray and neutron scattering techniques allows a detailed structural model of complex pharmaceutical preparations of soybean lecithin/chitosan nanoparticles used as drug vectors to be worked out. Charge-driven self-organization of the lipid(-)/polysaccharide(+) vesicles occurs during rapid injection, under mechanical stirring, of an ethanol solution of soybean lecithin into a chitosan aqueous solution. We conclude that beyond the charge inversion region of the phase diagram, i.e., entering the redissolution region, the initial stages of particle formation are likely to be affected by a re-entrant condensation effect at the nanoscale. This behavior resembles that at the mesoscale which is well-known for polyion/amphiphile systems. Close to the boundary of the charge inversion region, nanoparticle formation occurs under a maximum condensation condition at the nanoscale and the complexation-aggregation process is driven toward a maximum multilamellarity. Interestingly, the formulation that maximizes vesicle multilamellarity corresponds to that displaying the highest drug loading efficiency.
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Affiliation(s)
- Y Gerelli
- Dipartimento di Fisica, Università degli Studi di Parma, Italy
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Takenaga M, Ohta Y, Tokura Y, Hamaguchi A, Igarashi R, Disratthakit A, Doi N. Lipid Microsphere Formulation Containing Rifampicin Targets Alveolar Macrophages. Drug Deliv 2008; 15:169-75. [DOI: 10.1080/10717540801952530] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
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Ganta S, Paxton JW, Baguley BC, Garg S. Pharmacokinetics and pharmacodynamics of chlorambucil delivered in parenteral emulsion. Int J Pharm 2008; 360:115-21. [DOI: 10.1016/j.ijpharm.2008.04.027] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2007] [Revised: 04/14/2008] [Accepted: 04/15/2008] [Indexed: 10/22/2022]
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Lee S, Lee J, Choi YW. Design and Evaluation of Prostaglandin E1 (PGE1) Intraurethral Liquid Formulation Employing Self-Microemulsifying Drug Delivery System (SMEDDS) for Erectile Dysfunction Treatment. Biol Pharm Bull 2008; 31:668-72. [DOI: 10.1248/bpb.31.668] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Sangkil Lee
- Department of Pharmaceutical Engineering, College of Engineering, Inje University
| | - Jaehwi Lee
- Division of Pharmaceutical Sciences, College of Pharmacy, Chung-Ang University
| | - Young Wook Choi
- Division of Pharmaceutical Sciences, College of Pharmacy, Chung-Ang University
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Takenaga M, Ohta Y, Tokura Y, Hamaguchi A, Igarashi R. The Comparison Study of Lipo PGE 1 Preparations. YAKUGAKU ZASSHI 2007; 127:1237-43. [PMID: 17666875 DOI: 10.1248/yakushi.127.1237] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The comparison study was performed with 3 kinds of Lipo PGE(1) (5 microg/ml) preparations (Formulation A, B, and C), which are now used in clinical. Under alkali condition, Lipo PGE(1) (5 microg/ml) preparations in combination with physiological solution containing calcium ion were susceptible to stop dropping because of the formation of aggregates. There was a difference of feasibility to form aggregates among these preparations. The percentage of PGE(1) in the LM (lipid microspheres) was 68.8% (Formulation A) when determined by filtration with the pore size of 0.1 microm, and the respective value (%) of Formulation B and Formulation C was 43.0% and 13.9%. This indicates that the latter formulations were significantly susceptible to leak from the LM. PGE(1) can induce an extensive irritation. The potency of irritation was the most in Formulation C. This seems similar with the result of LM retention of PGE(1). PGE(1) increased the blood flow. Formulation A reached the peak by 2.27 fold, which was significantly higher than Formulation C and PGE(1) alone (PGE(1)-cyclodextrin, PGE(1)-CD). The peak was also significantly higher in Formulation B than that of PGE(1)-CD. The AUC value of blood flow rate showed a significant increase in Formulation A and Formulation B as compared to that of PGE(1)-CD. Drug retention in the LM can be a determinant factor for drug distribution and pharmacological effect. This study indicates that there can be some differences among Lipo PGE(1) preparations, which have the same drug dose.
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Affiliation(s)
- Mitsuko Takenaga
- Institute of Medical Science, St. Marianna University School of Medicine, Kawasaki, Japan.
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Lixin W, Haibing H, Xing T, Ruiying S, Dawei C. A less irritant norcantharidin lipid microspheres: formulation and drug distribution. Int J Pharm 2006; 323:161-7. [PMID: 16828998 DOI: 10.1016/j.ijpharm.2006.05.060] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2005] [Revised: 04/07/2006] [Accepted: 05/28/2006] [Indexed: 11/16/2022]
Abstract
Lipid microspheres (LM) have recently been used as intravenous (i.v.) carriers for drugs, which are sufficiently soluble in oil. However, in the case of norcantharidin (NCTD), which is poorly soluble in both the water and oil phases, this approach is not feasible. In this study, NCTD-loaded LM was prepared by transferring the drug to the interfacial surface of the oil and aqueous phases to produce a less irritating i.v. formulation of NCTD. A probe type sonicator was used to disperse NCTD into the oil phase together with lecithin and Tween 80. A high-pressure homogenization process was used to prepare the lipid microspheres and localize the drug at the surfactant layer. The LM loaded with NCTD consisted of 0.02% drug. Characterization of LMs and short-term stability was performed by photon correlation spectroscopy (PCS) and a centrifugation test was also carried out. The results showed that NCTD-loaded LM (2 mg/ml) with over 80% NCTD loaded in the interfacial surface were stable for a period of 2 months, and were suitable for i.v. injection in terms of size and stability, whether be diluted or not. Such formulations produced less pain and irritation in animal studies.
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Affiliation(s)
- Wang Lixin
- Liaoning Medical Apparatus and Instrument Institute, Shen Yang 110000, People's Republic of China
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Reddy PR, Venkateswarlu V. Pharmacokinetics and tissue distribution of etoposide delivered in long circulating parenteral emulsion. J Drug Target 2006; 13:543-53. [PMID: 16390815 DOI: 10.1080/10611860500403156] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
PURPOSE The aim of the study is to ascertain the influence of pegylation of parenteral emulsion (PE) on their long circulating property. METHODS Etoposide encapsulated parenteral emulsion (EPE) was prepared using soybean oil, egg lecithin and cholesterol. Etoposide encapsulated long circulating parenteral emulsion (PEG-EPE) was prepared using PEG (2000)-DSPE as a stealth agent. The effect of monovalent and divalent electrolytes on the stability of EP was assessed by measuring the fixed aqueous layer thickness (FALT) and flocculation rate. Pharmacokinetics and tissue distribution pattern of PE following i.v. (bolus) were assessed in Wistar rats and Swiss albino mice. RESULTS FALT of PEG-EPE was larger than that of EPE. In case of PEG-EPE, as the concentration of pegylated lipid (PEG) increased from 0.15 to 0.45% w/v the flocculation rate decreased asymptomatically in the presence of monovalent and divalent electrolytes. The increased circulation time of PEG-EPE (0.3%) after intravenous injection to rats confirms the presence of FALT around globules. PEG-EPE showed improved pharmacokinetic parameters with 5.5 times higher AUC than etoposide commercial formulation (ETP). Tissue distribution results show that etoposide levels in all tissues except in brain and heart were lower in case of PEG-EPE than ETP. The percentage of tumor growth suppression rate (%T/C) in Lewis lung carcinoma bearing mice was 63.23, 62.83 and 33.78% in EPE, PEG-EPE and ETP treated mice, respectively. The improved activity of PEG-EPE is due to enhanced permeability and retention effect (EPR). CONCLUSION Encapsulation of etoposide in PEG-coated PE produced improved pharmacokinetic profile than that of EPE and ETP.
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Affiliation(s)
- Patlolla Ram Reddy
- NDDS Laboratory, University College of Pharmaceutical Sciences, Kakatiya University, Warangal 506 009, Andhra Pradesh, India
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He H, Tang X, Cui F. Pharmacokinetic Study of Ketoprofen Isopropyl Ester-Loaded Lipid Microspheres in Rat Blood Using Microdialysis. Biol Pharm Bull 2006; 29:841-5. [PMID: 16595933 DOI: 10.1248/bpb.29.841] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A blood microdialysis technique coupled with high-performance liquid chromatography was used to investigate the pharmacokinetics of unbound ketoprofen in rats after intravenous administration of a lipid-soluble ketoprofen derivate, ketoprofen isopropyl ester (KPI), loaded into lipid microspheres (LM) and ketoprofen solution. A microdialysis probe was inserted into the jugular vein of male Wistar rats. KPI-loaded LM or ketoprofen solution (24 mg/kg, i.v.) was then administrated via a femoral vein. Dialysate samples were analyzed using HPLC. The in vitro and in vivo recovery rate of the microdialysis probe was 30.42+/-0.74% (n=3) and 40.27+/-2.74% (n=3), respectively. The pharmacokinetic parameters for ketoprofen after intravenous administration of KPI-loaded LM and ketoprofen solution exhibited no statistically significant differences. The results of this pharmacokinetic study indicate that the microdialysis technique can be widely applicable to investigations of in vivo free-drug of microcarrier systems.
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Affiliation(s)
- Haibing He
- Department of Pharmaceutics, Shenyang Pharmaceutical University, ShenYang, People's Republic of China
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Takenaga M, Igarashi R, Mizushima Y. Possibility of lipid microsphere-encapsulated Y-24180 as an injectable drug and an inhaler for the treatment of bronchoconstriction. Allergol Int 2000. [DOI: 10.1046/j.1440-1592.2000.00172.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Crauste-Manciet S, Brossard D, Decroix MO, Farinotti R, Chaumeil JC. Cefpodoxime-proxetil protection from intestinal lumen hydrolysis by oil-in-water submicron emulsions. Int J Pharm 1998. [DOI: 10.1016/s0378-5173(98)00008-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Abstract
Gene therapy is an emerging field that has reached the early clinical stages of development for some disease states. However, the demonstration of safety in animals and the introduction of gene-based formulations in humans hides the fact that numerous developmental and basic research questions remain. This article highlights progress and emerging issues in the area of liposome-based non-viral gene delivery. The colloidal nature of these formulations render them complicated at the physico-chemical and biological levels. Instrumentation and methodologies need to be developed to better understand the subtleties of plasmid DNA, complexing agents, delivery mode and the route of entry into the cell and the nucleus. Major hurdles to entry include membrane binding, endosomal release, nuclear uptake and decomplexation. Each 'stage' is poorly understood but numerous approaches are being directed to increase cellular delivery. These research efforts, coupled with sensible formulation research and a multi-disciplinary, long-term effort, are necessary for success.
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