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Yoshikawa E, Ueda K, Hakata R, Higashi K, Moribe K. Quantitative Investigation of Intestinal Drug Absorption Enhancement by Drug-Rich Nanodroplets Generated via Liquid-Liquid Phase Separation. Mol Pharm 2024; 21:1745-1755. [PMID: 38501717 DOI: 10.1021/acs.molpharmaceut.3c01078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/20/2024]
Abstract
Drug-rich droplets formed through liquid-liquid phase separation (LLPS) have the potential to enhance the oral absorption of drugs. This can be attributed to the diffusion of these droplets into the unstirred water layer (UWL) of the gastrointestinal tract and their reservoir effects on maintaining drug supersaturation. However, a quantitative understanding of the effect of drug-rich droplets on intestinal drug absorption is still lacking. In this study, the enhancement of intestinal drug absorption through the formation of drug-rich droplets was quantitatively evaluated on a mechanistic basis. To obtain fenofibrate (FFB)-rich droplets, an amorphous solid dispersion (ASD) of FFB/hypromellose (HPMC) was dispersed in an aqueous medium. Physicochemical characterization confirmed the presence of nanosized FFB-rich droplets in the supercooled liquid state within the FFB/HPMC ASD dispersion. An in situ single-pass intestinal perfusion (SPIP) assay in rats demonstrated that increased quantities of FFB-rich nanodroplets enhanced the intestinal absorption of FFB. The effective diffusion of FFB-rich nanodroplets through UWL would partially contribute to the improved FFB absorption. Additionally, confocal laser scanning microscopy (CLSM) of cross sections of the rat intestine after the administration of fluorescently labeled FFB-rich nanodroplets showed that these nanodroplets were directly taken up by small intestinal epithelial cells. Therefore, the direct uptake of drug-rich nanodroplets by the small intestine is a potential mechanism for improving FFB absorption in the intestine. To quantitatively evaluate the impact of FFB-rich droplets on the FFB absorption enhancement, we determined the apparent permeabilities of the FFB-rich nanodroplets and dissolved FFB based on the SPIP results. The apparent permeability of the FFB-rich nanodroplets was 110-130 times lower than that of dissolved FFB. However, when the FFB-rich nanodroplet concentration was several hundred times higher than that of dissolved FFB, the FFB-rich nanodroplets contributed significantly to FFB absorption improvement. The present study highlights that drug-rich nanodroplets play a direct role in enhancing drug absorption in the gastrointestinal tract, indicating their potential for further improvement of oral absorption from ASD formulations.
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Affiliation(s)
- Etsushi Yoshikawa
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Keisuke Ueda
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Rei Hakata
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Kenjirou Higashi
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Kunikazu Moribe
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan
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Babalola KT, Arora M, Ganugula R, Agarwal SK, Mohan C, Kumar MNVR. Leveraging Lymphatic System Targeting in Systemic Lupus Erythematosus for Improved Clinical Outcomes. Pharmacol Rev 2024; 76:228-250. [PMID: 38351070 PMCID: PMC10877736 DOI: 10.1124/pharmrev.123.000938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 11/21/2023] [Accepted: 12/06/2023] [Indexed: 02/16/2024] Open
Abstract
The role of advanced drug delivery strategies in drug repositioning and minimizing drug attrition rates, when applied early in drug discovery, is poised to increase the translational impact of various therapeutic strategies in disease prevention and treatment. In this context, drug delivery to the lymphatic system is gaining prominence not only to improve the systemic bioavailability of various pharmaceutical drugs but also to target certain specific diseases associated with the lymphatic system. Although the role of the lymphatic system in lupus is known, very little is done to target drugs to yield improved clinical benefits. In this review, we discuss recent advances in drug delivery strategies to treat lupus, the various routes of drug administration leading to improved lymph node bioavailability, and the available technologies applied in other areas that can be adapted to lupus treatment. Moreover, this review also presents some recent findings that demonstrate the promise of lymphatic targeting in a preclinical setting, offering renewed hope for certain pharmaceutical drugs that are limited by efficacy in their conventional dosage forms. These findings underscore the potential and feasibility of such lymphatic drug-targeting approaches to enhance therapeutic efficacy in lupus and minimize off-target effects of the pharmaceutical drugs. SIGNIFICANCE STATEMENT: The World Health Organization estimates that there are currently 5 million humans living with some form of lupus. With limited success in lupus drug discovery, turning to effective delivery strategies with existing drug molecules, as well as those in the early stage of discovery, could lead to better clinical outcomes. After all, effective delivery strategies have been proven to improve treatment outcomes.
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Affiliation(s)
- K T Babalola
- The Center for Convergent Bioscience and Medicine (CCBM) (K.T.B., M.A., R.G., M.N.V.R.K.), Division of Translational Science and Medicine, College of Community Health Sciences (K.T.B., M.A., R.G., M.N.V.R.K.), Alabama Life Research Institute (K.T.B., M.A., R.G., M.N.V.R.K.), and Department of Biological Sciences (M.A., R.G., M.N.V.R.K.), The University of Alabama, Tuscaloosa, Alabama; Section of Immunology, Allergy and Rheumatology, Department of Medicine, Biology of Inflammation Baylor College of Medicine, One Baylor Plaza, Houston, Texas (S.K.A.); Department of Biomedical Engineering, University of Houston, Houston, Texas (C.M.); Chemical and Biological Engineering, University of Alabama, Tuscaloosa, Alabama (M.N.V.R.K.); and Center for Free Radical Biology (M.N.V.R.K.) and Nephrology Research and Training Center, Division of Nephrology, Department of Medicine (M.N.V.R.K.), University of Alabama at Birmingham, Birmingham, Alabama
| | - M Arora
- The Center for Convergent Bioscience and Medicine (CCBM) (K.T.B., M.A., R.G., M.N.V.R.K.), Division of Translational Science and Medicine, College of Community Health Sciences (K.T.B., M.A., R.G., M.N.V.R.K.), Alabama Life Research Institute (K.T.B., M.A., R.G., M.N.V.R.K.), and Department of Biological Sciences (M.A., R.G., M.N.V.R.K.), The University of Alabama, Tuscaloosa, Alabama; Section of Immunology, Allergy and Rheumatology, Department of Medicine, Biology of Inflammation Baylor College of Medicine, One Baylor Plaza, Houston, Texas (S.K.A.); Department of Biomedical Engineering, University of Houston, Houston, Texas (C.M.); Chemical and Biological Engineering, University of Alabama, Tuscaloosa, Alabama (M.N.V.R.K.); and Center for Free Radical Biology (M.N.V.R.K.) and Nephrology Research and Training Center, Division of Nephrology, Department of Medicine (M.N.V.R.K.), University of Alabama at Birmingham, Birmingham, Alabama
| | - R Ganugula
- The Center for Convergent Bioscience and Medicine (CCBM) (K.T.B., M.A., R.G., M.N.V.R.K.), Division of Translational Science and Medicine, College of Community Health Sciences (K.T.B., M.A., R.G., M.N.V.R.K.), Alabama Life Research Institute (K.T.B., M.A., R.G., M.N.V.R.K.), and Department of Biological Sciences (M.A., R.G., M.N.V.R.K.), The University of Alabama, Tuscaloosa, Alabama; Section of Immunology, Allergy and Rheumatology, Department of Medicine, Biology of Inflammation Baylor College of Medicine, One Baylor Plaza, Houston, Texas (S.K.A.); Department of Biomedical Engineering, University of Houston, Houston, Texas (C.M.); Chemical and Biological Engineering, University of Alabama, Tuscaloosa, Alabama (M.N.V.R.K.); and Center for Free Radical Biology (M.N.V.R.K.) and Nephrology Research and Training Center, Division of Nephrology, Department of Medicine (M.N.V.R.K.), University of Alabama at Birmingham, Birmingham, Alabama
| | - S K Agarwal
- The Center for Convergent Bioscience and Medicine (CCBM) (K.T.B., M.A., R.G., M.N.V.R.K.), Division of Translational Science and Medicine, College of Community Health Sciences (K.T.B., M.A., R.G., M.N.V.R.K.), Alabama Life Research Institute (K.T.B., M.A., R.G., M.N.V.R.K.), and Department of Biological Sciences (M.A., R.G., M.N.V.R.K.), The University of Alabama, Tuscaloosa, Alabama; Section of Immunology, Allergy and Rheumatology, Department of Medicine, Biology of Inflammation Baylor College of Medicine, One Baylor Plaza, Houston, Texas (S.K.A.); Department of Biomedical Engineering, University of Houston, Houston, Texas (C.M.); Chemical and Biological Engineering, University of Alabama, Tuscaloosa, Alabama (M.N.V.R.K.); and Center for Free Radical Biology (M.N.V.R.K.) and Nephrology Research and Training Center, Division of Nephrology, Department of Medicine (M.N.V.R.K.), University of Alabama at Birmingham, Birmingham, Alabama
| | - C Mohan
- The Center for Convergent Bioscience and Medicine (CCBM) (K.T.B., M.A., R.G., M.N.V.R.K.), Division of Translational Science and Medicine, College of Community Health Sciences (K.T.B., M.A., R.G., M.N.V.R.K.), Alabama Life Research Institute (K.T.B., M.A., R.G., M.N.V.R.K.), and Department of Biological Sciences (M.A., R.G., M.N.V.R.K.), The University of Alabama, Tuscaloosa, Alabama; Section of Immunology, Allergy and Rheumatology, Department of Medicine, Biology of Inflammation Baylor College of Medicine, One Baylor Plaza, Houston, Texas (S.K.A.); Department of Biomedical Engineering, University of Houston, Houston, Texas (C.M.); Chemical and Biological Engineering, University of Alabama, Tuscaloosa, Alabama (M.N.V.R.K.); and Center for Free Radical Biology (M.N.V.R.K.) and Nephrology Research and Training Center, Division of Nephrology, Department of Medicine (M.N.V.R.K.), University of Alabama at Birmingham, Birmingham, Alabama
| | - M N V Ravi Kumar
- The Center for Convergent Bioscience and Medicine (CCBM) (K.T.B., M.A., R.G., M.N.V.R.K.), Division of Translational Science and Medicine, College of Community Health Sciences (K.T.B., M.A., R.G., M.N.V.R.K.), Alabama Life Research Institute (K.T.B., M.A., R.G., M.N.V.R.K.), and Department of Biological Sciences (M.A., R.G., M.N.V.R.K.), The University of Alabama, Tuscaloosa, Alabama; Section of Immunology, Allergy and Rheumatology, Department of Medicine, Biology of Inflammation Baylor College of Medicine, One Baylor Plaza, Houston, Texas (S.K.A.); Department of Biomedical Engineering, University of Houston, Houston, Texas (C.M.); Chemical and Biological Engineering, University of Alabama, Tuscaloosa, Alabama (M.N.V.R.K.); and Center for Free Radical Biology (M.N.V.R.K.) and Nephrology Research and Training Center, Division of Nephrology, Department of Medicine (M.N.V.R.K.), University of Alabama at Birmingham, Birmingham, Alabama
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A comparative evaluation of anti-tumor activity following oral and intravenous delivery of doxorubicin in a xenograft model of breast tumor. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2022. [DOI: 10.1007/s40005-022-00595-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Abstract
Purpose
Natural materials have been extensively studied for oral drug delivery due to their biodegradability and other unique properties. In the current research, we fabricated sodium caseinate nanomicelles (NaCNs) using casein as a natural polymer to develop a controlled-release oral delivery system that would improve the therapeutic potential of doxorubicin (DOX) and reduce its toxicity.
Methods
DOX-loaded NaCNs were synthesized and thoroughly characterized, then subjected to in vivo anti-tumor evaluation and bio-distribution analysis in a 4T1-induced breast cancer model.
Results
Our findings indicated that the tumor would shrink by eight-fold in the group orally treated with DOX-NaCNs when compared to free DOX. The tumor accumulated drug 1.27-fold more from the orally administered DOX-NaCNs compared to the intravenously administered DOX-NaCNs, 6.8-fold more compared to free DOX, and 8.34-times more compared to orally administered free DOX. In comparison, the orally administered DOX-NaCNs lead to a significant reduction in tumor size (5.66 ± 4.36 mm3) compared to intravenously administered DOX-NaCNs (10.29 ± 4.86 mm3) on day 17 of the experiment. NaCNs were well tolerated at a single dose of 2000 mg/kg in an acute oral toxicity study.
Conclusion
The enhanced anti-tumor effects of oral DOX-NaCNs might be related to the controlled release of DOX from the delivery system when compared to free DOX and the intravenous formulation of DOX-NaCNs. Moreover, NaCNs is recognized as a safe and non-toxic delivery system with excellent bio-distribution profile and high anti-tumor effects that has a potential for oral chemotherapy.
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Improving oral bioavailability of water-insoluble idebenone with bioadhesive liposomes. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103640] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Wang G, Xie Y, Qian X, Zhang X, Shan Y, Zhang M, Li J, Zhang Z, Li Y. Poly (maleic anhydride-alt-1-octadecene)-based bioadhesive nanovehicles improve oral bioavailability of poor water-soluble gefitinib. Drug Dev Ind Pharm 2022; 48:109-116. [PMID: 35786162 DOI: 10.1080/03639045.2022.2098316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The poor water solubility and inadequate oral bioavailability of gefitinib (Gef) remains a critical issue to achieve the therapeutic outcomes. Herein, we designed a poly (maleic anhydride-alt-1-octadecene) (PMA/C18) based lipid nanovehicle (PLN) to improve the intestinal absorption and oral bioavailability of poorly water-soluble Gef. PLN was nanometer-sized particles, and Gef was dispersed in the PLN formulation as amorphous or molecular state. At 4 h of oral administration, the tissue concentration of Gef in duodenum, jejunum and ileum was profoundly enhanced 3.37-, 8.94- and 8.09-fold by PLN when comparing to the counterpart lipid nanovehicle. Moreover, the oral bioavailability of Gef was significantly enhanced 2.48-fold by the PLN formulation when comparing to the free drug suspension. Therefore, this study provides an encouraging bioadhesive delivery platform to improve the oral delivery of poorly water-soluble drugs.
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Affiliation(s)
- Guanru Wang
- State Key Laboratory of Drug Research & Center of Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Yaru Xie
- State Key Laboratory of Drug Research & Center of Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China.,School of Pharmacy, Yantai University, Shandong, 264005, China
| | - Xindi Qian
- State Key Laboratory of Drug Research & Center of Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Xinyue Zhang
- State Key Laboratory of Drug Research & Center of Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Yanqiang Shan
- Qilu Pharmaceutical (Hainan) Co. Ltd., Hainan, 570314, China
| | - Minghui Zhang
- Qilu Pharmaceutical Co. Ltd., Shandong, 250100, China
| | - Jie Li
- State Key Laboratory of Drug Research & Center of Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Zhiwen Zhang
- State Key Laboratory of Drug Research & Center of Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Yaping Li
- State Key Laboratory of Drug Research & Center of Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
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Liu D, Qiao S, Cheng B, Li D, Chen J, Wu Q, Pan H, Pan W. Enhanced Oral Delivery of Curcumin via Vitamin E TPGS Modified Nanodiamonds: a Comparative Study on the Efficacy of Non-covalent and Covalent Conjugated Strategies. AAPS PharmSciTech 2020; 21:187. [PMID: 32642862 DOI: 10.1208/s12249-020-01721-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Accepted: 05/31/2020] [Indexed: 02/06/2023] Open
Abstract
Despite that either non-covalent or covalent attachment of hydrophilic polymers or surfactants onto nanodiamonds (NDs) could overcome the shortcomings of being a drug delivery system, it is hard to draw a definite conclusion which strategy is more effective. Hence, with the purpose of comparing the influence of different coating approach of NDs on the oral delivery efficiency of water-insoluble model drug curcumin (CUR), NDs were firstly modified with D-α-tocopheryl polyethylene glycol 1000 succinate (TPGS) via non-covalent or covalent conjugation method, and then loaded with CUR (CUR@NDs-COOH/TPGS or CUR@NDs-TPGS). In comparison with the core-shell-structured CUR@NDs-COOH/TPGS, CUR@NDs-TPGS were irregular in shape with dense TPGS film, and exhibited smaller size, more negatively potential, and higher drug loading efficiency. The covalent connection group also showed higher anti-cancer activity, cellular uptake, and permeability through the Caco-2 cell monolayers, as well as favorable distribution, penetration, and retention in rat intestines. The oral bioavailability study in rats demonstrated that CUR@NDs-TPGS showed significantly greater Cmax and AUC0-t in contrast with CUR suspension and the TPGS-coated ones, respectively. The findings illustrated that covalent grafting TPGS onto the surface of NDs possesses better efficacy and biocompatibility on oral delivery of poorly soluble drug CUR than pristine and non-covalent coated nanoparticles.
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Cheng J, Zhao W, Yao H, Shen Y, Zhang Y, Li YZ, QI Q, Wongprasert K, Tang YJ. Discovery of 4,6-O-Thenylidene-β-d-glucopyranoside-(2″-acetamido, 3″-acetyl-di-S-5-fluorobenzothizole/5-fluorobenzoxazole)-4′-demethylepipodophyllotoxin as Potential Less Toxic Antitumor Candidate Drugs by Reducing DNA Damage and Less Inhibition of PI3K. J Med Chem 2020; 63:2877-2893. [DOI: 10.1021/acs.jmedchem.9b01354] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Jie Cheng
- Hubei Key Laboratory of Industrial Microbiology, Hubei Provincial Cooperative Innovation Center of Industrial Fermentation, Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei University of Technology, Wuhan 430068, China
| | - Wei Zhao
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao 266237, China
| | - Hui Yao
- Hubei Key Laboratory of Industrial Microbiology, Hubei Provincial Cooperative Innovation Center of Industrial Fermentation, Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei University of Technology, Wuhan 430068, China
| | - Yuemao Shen
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao 266237, China
| | - Youming Zhang
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao 266237, China
| | - Yue-zhong Li
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao 266237, China
| | - Qingsheng QI
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao 266237, China
| | - Kanokpan Wongprasert
- Department of Anatomy, Faculty of Science, Mahidol University, Rama Sixth Road, Bangkok 10400, Thailand
| | - Ya-Jie Tang
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao 266237, China
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Du X, Yin S, Xu L, Ma J, Yu H, Wang G, Li J. Polylysine and cysteine functionalized chitosan nanoparticle as an efficient platform for oral delivery of paclitaxel. Carbohydr Polym 2020; 229:115484. [DOI: 10.1016/j.carbpol.2019.115484] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Revised: 07/18/2019] [Accepted: 10/15/2019] [Indexed: 01/11/2023]
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9
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Wang J, Wang L, Li Y, Wang X, Tu P. Apically targeted oral micelles exhibit highly efficient intestinal uptake and oral absorption. Int J Nanomedicine 2018; 13:7997-8012. [PMID: 30538473 PMCID: PMC6263247 DOI: 10.2147/ijn.s183796] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Introduction Polymeric micelles (PMs) hold promise for improving solubility and oral absorption of poorly soluble drugs. Unfortunately, the oral absorption of PMs is also limited by intestinal epithelium. To improve the oral delivery efficiency of micelles, transporter-mediated micelles could enhance the transport efficiency across the epithelial barrier, and they have attracted more attention. Methods Peptide transporter 1 (PepT1)-mediated micelles (Val-PMs/Phe-PMs) were designed by grafting valine (or phenylalanine) onto the surface of curcumin (Cur)-loaded-D-α-tocopheryl polyethylene glycol 1000 succinate micelles (TP-PMs). The oral absorption mechanism and oral bioavailability were further investigated in vitro and in vivo. Results The cellular study showed that Val-PMs/Phe-PMs had a high PepT1 affinity, resulting in a higher drug uptake and transcellular transport than TP-PMs. In rats, Val-PMs/Phe-PMs exhibited higher intestinal accumulation in the apical side of the intestinal epithelium than TP-PMs, promoting drug diffusion across epithelial barrier. The oral bioavailability of Cur was significantly improved by Val-PMs/Phe-PMs, which was about 10.50- and 3.40-fold greater than that of Cur-Sol and TP-PMs, respectively. Conclusion PepT-1-mediated micelles, using PepT1 as a target on intestinal epithelium, have unique functions with intestine and prove promising for oral delivery of poorly water-soluble drugs.
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Affiliation(s)
- Jinling Wang
- School of Chinese Materia Medica, Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, China,
| | - Lifang Wang
- School of Chinese Materia Medica, Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, China,
| | - Ying Li
- School of Chinese Materia Medica, Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, China,
| | - Xiaohui Wang
- School of Chinese Materia Medica, Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, China,
| | - Pengfei Tu
- School of Chinese Materia Medica, Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, China,
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Abstract
Treatment options for animals with cancer are rapidly expanding, including in exotic animal medicine. Limited information is available about treatment effects in exotic pet species beyond individual case reports. Most cancer treatment protocols in exotic animals are extrapolated from those described in humans, dogs, and cats. This review provides an update on cancer treatment in exotic animal species. The Exotic Species Cancer Research Alliance accumulates clinical cases in a central location with standardized clinical information, with resources to help clinicians find and enter their cases for the collective good of exotic clinicians and their patients.
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11
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Cheng B, Pan H, Liu D, Li D, Li J, Yu S, Tan G, Pan W. Functionalization of nanodiamond with vitamin E TPGS to facilitate oral absorption of curcumin. Int J Pharm 2018; 540:162-170. [DOI: 10.1016/j.ijpharm.2018.02.014] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Revised: 02/04/2018] [Accepted: 02/12/2018] [Indexed: 01/17/2023]
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12
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Du XJ, Wang JL, Iqbal S, Li HJ, Cao ZT, Wang YC, Du JZ, Wang J. The effect of surface charge on oral absorption of polymeric nanoparticles. Biomater Sci 2018; 6:642-650. [DOI: 10.1039/c7bm01096f] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Positively charged nanoparticles showed a favorable distribution in the small intestine, and significantly improved oral bioavailability.
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Affiliation(s)
- Xiao-Jiao Du
- Institutes for Life Sciences and School of Medicine
- South China University of Technology
- Guangzhou
- China
- National Engineering Research Center for Tissue Restoration and Reconstruction
| | - Ji-Long Wang
- School of Life Sciences
- University of Science and Technology of China
- Hefei
- China
| | - Shoaib Iqbal
- School of Life Sciences
- University of Science and Technology of China
- Hefei
- China
| | - Hong-Jun Li
- Institutes for Life Sciences and School of Medicine
- South China University of Technology
- Guangzhou
- China
- National Engineering Research Center for Tissue Restoration and Reconstruction
| | - Zhi-Ting Cao
- School of Life Sciences
- University of Science and Technology of China
- Hefei
- China
| | - Yu-Cai Wang
- School of Life Sciences
- University of Science and Technology of China
- Hefei
- China
| | - Jin-Zhi Du
- Institutes for Life Sciences and School of Medicine
- South China University of Technology
- Guangzhou
- China
- National Engineering Research Center for Tissue Restoration and Reconstruction
| | - Jun Wang
- Institutes for Life Sciences and School of Medicine
- South China University of Technology
- Guangzhou
- China
- National Engineering Research Center for Tissue Restoration and Reconstruction
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Carboxymethyl chitosan/phospholipid bilayer-capped mesoporous carbon nanoparticles with pH-responsive and prolonged release properties for oral delivery of the antitumor drug, Docetaxel. Int J Pharm 2017; 532:384-392. [DOI: 10.1016/j.ijpharm.2017.09.023] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 08/20/2017] [Accepted: 09/09/2017] [Indexed: 10/18/2022]
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14
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Liu H, Tu L, Zhou Y, Dang Z, Wang L, Du J, Feng J, Hu K. Improved Bioavailability and Antitumor Effect of Docetaxel by TPGS Modified Proniosomes: In Vitro and In Vivo Evaluations. Sci Rep 2017; 7:43372. [PMID: 28266539 PMCID: PMC5339906 DOI: 10.1038/srep43372] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Accepted: 01/23/2017] [Indexed: 11/09/2022] Open
Abstract
A novel oral drug delivery system, TPGS modified docetaxel proniosomes (DTX-TPGS-PNs), was designed to enhance the oral bioavailability and antitumor efficiency of the poorly water-soluble drug docetaxel. DTX-TPGS-PN niosomes were 93 ± 6.5 nm in size, -18.53 ± 1.65 mV in zeta potential and exhibited spherical morphology, with an encapsulation efficiency of 97.31 ± 0.60%. The system showed sustained release in both simulated gastric and intestinal fluid. The results of caco-2 monolayer, everted gut sac model and improved single-pass intestinal perfusion model transport studies showed that DTX-TPGS-PN niosomes could significantly improve the absorption of DTX. The pharmacokinetics study suggested the absolute bioavailability of DTX-TPGS-PN niosomes were 7.3 times that of DTX solution. In addition, a higher antitumor efficacy than DTX solution was demonstrated in MCF-7 and MDA-MB-231 cells in vitro and in MCF-7 tumor-bearing mice model in vivo. Our results demonstrated DTX-TPGS-PN is promising in enhancing the bioavailability and efficiency of poorly water-soluble drug DTX, and the potential of proniosomes as stable precursors for oral drug delivery.
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Affiliation(s)
- Helong Liu
- Murad Research Center for Modernized Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, People's Republic of China
| | - Liangxing Tu
- Murad Research Center for Modernized Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, People's Republic of China
| | - Yongxin Zhou
- Murad Research Center for Modernized Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, People's Republic of China
| | - Zefang Dang
- Murad Research Center for Modernized Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, People's Republic of China
| | - Luting Wang
- Murad Research Center for Modernized Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, People's Republic of China
| | - Junfeng Du
- Murad Research Center for Modernized Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, People's Republic of China
| | - Jianfang Feng
- Murad Research Center for Modernized Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, People's Republic of China
| | - Kaili Hu
- Murad Research Center for Modernized Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, People's Republic of China
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15
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Zeng YC, Li S, Liu C, Gong T, Sun X, Fu Y, Zhang ZR. Soluplus micelles for improving the oral bioavailability of scopoletin and their hypouricemic effect in vivo. Acta Pharmacol Sin 2017; 38:424-433. [PMID: 28112183 DOI: 10.1038/aps.2016.126] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Accepted: 10/12/2016] [Indexed: 11/09/2022] Open
Abstract
Scopoletin is an active coumarin possessing a variety of pharmacological activities, including anti-hyperuricemic effect, but with poor solubility. To improve its oral bioavailability, we attempted to encapsulate scopoletin into Soluplus micelles (Soluplus-based scopoletin micelles, Sco-Ms) and evaluated the hypouricemic action of Sco-Ms. Sco-Ms were prepared using a thin-film hydration method. Sco-Ms displayed near spherical shapes with an average size of 59.4±2.4 nm (PDI=0.08±0.02). The encapsulation efficiency of scopoletin was 87.3%±1.5% with a loading capacity of 5.5%±0.1%. Sco-Ms were further characterized using transmission electron microscopy, powder X-ray diffraction, Fourier transform infrared techniques and scanning electron microscopy. After oral administration in rats, Sco-Ms exhibited significantly improved absorption in each intestinal segment compared to free scopoletin, with the duodenum and jejunum being the main absorption regions. In rats administered Sco-Ms (at an equivalent dose of free scopoletin of 100 mg/kg, po), the AUC0-∞ and Cmax of Sco-Ms were 4.38- and 8.43-fold, respectively, as large as those obtained following administration of free scopoletin. After oral administration in rats, Sco-Ms did not alter the tissue distributions of scopoletin, but significantly increased the scopoletin levels in the liver. In potassium oxonate-induced hyperuricemic mice, oral administration of Sco-Ms (at an equivalent dose of free scopoletin of 300 mg/kg) reduced the serum uric acid concentration to the normal level. The results suggest that Soluplus-based micelle system greatly improves the bioavailability of poorly water-soluble drugs, such as scopoletin, and represents a promising strategy for their oral delivery.
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16
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Hu M, Zhang J, Ding R, Fu Y, Gong T, Zhang Z. Improved oral bioavailability and therapeutic efficacy of dabigatran etexilate via Soluplus-TPGS binary mixed micelles system. Drug Dev Ind Pharm 2017; 43:687-697. [PMID: 28032534 DOI: 10.1080/03639045.2016.1278015] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
The clinical use of dabigatran etexilate (DABE) is limited by its poor absorption and relatively low bioavailability. Our study aimed to explore the potential of a mixed micelle system composed of Soluplus® and D-alpha tocopheryl polyethylene glycol 1000 succinate (TPGS) to improve the oral absorption and bioavailability of DBAE. DBAE was first encapsulated into Soluplus/TPGS mixed micelles by a simple thin film hydration method. The DBAE loaded micelles displayed an average size distribution of around 83.13 nm. The cellular uptake of DBAE loaded micelles in Caco-2 cell monolayer was significantly enhanced by 2-2.6 fold over time as compared with DBAE suspension. Both lipid raft/caveolae and macropinocytosis-mediated the cell uptake of DBAE loaded micelles through P-glycoprotein (P-gp)-independent pathway. Compared with the DBAE suspension, the intestinal absorption of DBAE from DBAE mixed micelles in rats was significantly improved by 8 and 5-fold in ileum at 2 h and 4 h, respectively. Moreover, DBAE mixed micelles were absorbed into systemic circulation via both portal vein and lymphatic pathway. The oral bioavailability of DBAE mixed micelles in rats was 3.37 fold higher than that of DBAE suspension. DBAE mixed micelles exhibited a comparable anti-thrombolytic activity with a thrombosis inhibition rate of 63.18% compared with DBAE suspension in vivo. Thus, our study provides a promising drug delivery system to enhance the oral bioavailability and therapeutic efficacy of DBAE.
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Affiliation(s)
- Mei Hu
- a Key Laboratory of Drug Targeting and Drug Delivery Systems , Ministry of Education, Sichuan University , Chengdu , China
| | - Jinjie Zhang
- a Key Laboratory of Drug Targeting and Drug Delivery Systems , Ministry of Education, Sichuan University , Chengdu , China
| | - Rui Ding
- b Beijing Institute for Drug Control , Beijing , China
| | - Yao Fu
- a Key Laboratory of Drug Targeting and Drug Delivery Systems , Ministry of Education, Sichuan University , Chengdu , China
| | - Tao Gong
- a Key Laboratory of Drug Targeting and Drug Delivery Systems , Ministry of Education, Sichuan University , Chengdu , China
| | - Zhirong Zhang
- a Key Laboratory of Drug Targeting and Drug Delivery Systems , Ministry of Education, Sichuan University , Chengdu , China
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17
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Preparation and evaluation of teniposide-loaded polymeric micelles for breast cancer therapy. Int J Pharm 2016; 513:118-129. [DOI: 10.1016/j.ijpharm.2016.09.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2016] [Revised: 08/25/2016] [Accepted: 09/02/2016] [Indexed: 11/15/2022]
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18
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Liu H, Zhang Z, Chi X, Zhao Z, Huang D, Jin J, Gao J. Arsenite-loaded nanoparticles inhibit PARP-1 to overcome multidrug resistance in hepatocellular carcinoma cells. Sci Rep 2016; 6:31009. [PMID: 27484730 PMCID: PMC4971527 DOI: 10.1038/srep31009] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Accepted: 07/11/2016] [Indexed: 01/01/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is one of the highest incidences in cancers; however, traditional chemotherapy often suffers from low efficiency caused by drug resistance. Herein, we report an arsenite-loaded dual-drug (doxorubicin and arsenic trioxide, i.e., DOX and ATO) nanomedicine system (FeAsOx@SiO2-DOX, Combo NP) with significant drug synergy and pH-triggered drug release for effective treatment of DOX resistant HCC cells (HuH-7/ADM). This nano-formulation Combo NP exhibits the synergistic effect of DNA damage by DOX along with DNA repair interference by ATO, which results in unprecedented killing efficiency on DOX resistant cancer cells. More importantly, we explored the possible mechanism is that the activity of PARP-1 is inhibited by ATO during the treatment of Combo NP, which finally induces apoptosis of HuH-7/ADM cells by poly (ADP-ribosyl) ation suppression and DNA lesions accumulation. This study provides a smart drug delivery strategy to develop a novel synergistic combination therapy for effectively overcome drug- resistant cancer cells.
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Affiliation(s)
- Hanyu Liu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The Key Laboratory for Chemical Biology of Fujian Province, and Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Zongjun Zhang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The Key Laboratory for Chemical Biology of Fujian Province, and Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Xiaoqin Chi
- Fujian Provincial Key Laboratory of Chronic Liver Disease and Hepatocellular Carcinoma, Zhongshan Hospital, Xiamen University, Xiamen 361004, China
| | - Zhenghuan Zhao
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The Key Laboratory for Chemical Biology of Fujian Province, and Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Dengtong Huang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The Key Laboratory for Chemical Biology of Fujian Province, and Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Jianbin Jin
- Fujian Provincial Key Laboratory of Chronic Liver Disease and Hepatocellular Carcinoma, Zhongshan Hospital, Xiamen University, Xiamen 361004, China
| | - Jinhao Gao
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The Key Laboratory for Chemical Biology of Fujian Province, and Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
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19
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Guo H, Fei S, Zhang Y, Zhang Y, Gou J, Zhang L, He H, Yin T, Wang Y, Tang X. Teniposide-loaded multilayer modified albumin nanoparticles with increased passive delivery to the lung. RSC Adv 2016. [DOI: 10.1039/c6ra07906g] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The structure of the albumin core and multi-coated layers are designed to encapsulate teniposide for achieving controlled release and passively targeted delivery to the lung.
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20
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Trevaskis NL, Kaminskas LM, Porter CJH. From sewer to saviour — targeting the lymphatic system to promote drug exposure and activity. Nat Rev Drug Discov 2015; 14:781-803. [DOI: 10.1038/nrd4608] [Citation(s) in RCA: 378] [Impact Index Per Article: 42.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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21
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Wang J, Ma W, Tu P. The mechanism of self-assembled mixed micelles in improving curcumin oral absorption: In vitro and in vivo. Colloids Surf B Biointerfaces 2015; 133:108-19. [PMID: 26094144 DOI: 10.1016/j.colsurfb.2015.05.056] [Citation(s) in RCA: 78] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2014] [Revised: 05/22/2015] [Accepted: 05/26/2015] [Indexed: 12/16/2022]
Abstract
Curcumin-loaded self-assembled polymeric micelles (Cur-PMs) were designed to increase oral bioavailability of curcumin and investigate the oral absorption mechanism in vitro and in vivo. The Cur-PMs were spherical nano-size particles 17.82±0.33nm in size, with a drug loading of 3.52±0.18%, and encapsulation efficiency as high as 93.08±2.23%. The intestinal absorption of Cur-PMs in the duodenum, jejunum, and ileum was 3.09-, 6.48-, and 1.78-fold greater than that of curcumin solution (Cur-Sol) at 0.5h. The cellular uptake of Cur-PMs in Caco-2 cells was significantly enhanced in comparison with Cur-Sol by caveolae-mediated and clathrin-mediated endocytosis. Moreover, the apparent permeability coefficient (Papp) of Cur-PMs was 3.50-fold higher than that of Cur-Sol in Caco-2 transport studies. The transport mechanism of Cur-PMs into the system circulation was not paracellular transport through opening the tight junctions, but was by energy-dependent, macropinocytic transcytosis and lymphatic transport pathways. Furthermore, the AUC(0-t) value of Cur-PMs was improved 2.87-fold compared with that of Cur-Sol after oral administration in rats. Therefore, self-assembled polymeric micelles could be a promising vehicle to efficiently improve the oral absorption of curcumin.
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Affiliation(s)
- Jinling Wang
- Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, PR China
| | - Wenzhuan Ma
- Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, PR China; School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100102, PR China
| | - Pengfei Tu
- Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, PR China.
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22
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Evaluation of self-emulsified DIM-14 in dogs for oral bioavailability and in Nu/nu mice bearing stem cell lung tumor models for anticancer activity. J Control Release 2015; 213:18-26. [PMID: 26079185 DOI: 10.1016/j.jconrel.2015.06.014] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Accepted: 06/11/2015] [Indexed: 12/29/2022]
Abstract
3, 3-Diindolylmethane-14 (DIM-14), a novel lipophilic derivative of DIM, has demonstrated anticancer activity in different types of cancers. However, poor solubility and low oral bioavailability of DIM-14 limit its translational benefits in vivo. This study was carried out to improve the oral bioavailability of DIM-14 via self-emulsifying drug (SED) delivery system in dogs and to evaluate pharmacodynamic characteristics of SED against H1650 stem cell tumor models. DIM-14 was incorporated into an oil, surfactant, and co-surfactant mixture using labrafil and tween-80 to obtain SED. SED were characterized by droplet size, polydispersitiy index (PDI), zeta potential, entrapment efficiency (EE), in vitro permeability and drug release (investigated with Caco-2 monolayers and dissolution apparatus respectively). Pharmacokinetic parameters in dogs were evaluated and analyzed using Winonlin. Anti-tumor activity was carried out in H1650 lung tumor model. Particle size of SED was between 230 and 246 nm and surface charge was negative and ranged from 26.50 to 28.69 mV. Entrapment efficiency of SED was 85%. Pharmacokinetic evaluation in dogs showed increased Cmax (39.18 ± 7.34 vs 21.68 ± 6.3 μg·dL-1), higher AUC0-t (34,481.34 ± 1125.46 vs 14,159.53 ± 702.20 μg·min·dL-1) and improved absorption with 3 times more bioavailability of SED compared to DIM-14 solution. SED showed ~30-59% tumor volume/weight reduction in H1650 tumor model compared to DIM-P solution. Our studies demonstrate the potential application of self-emulsifying drug delivery system (SEDDS), that enhances oral absorption of DIM-14 and increased anti-tumor activity against lung tumor models.
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He X, Xiang N, Zhang J, Zhou J, Fu Y, Gong T, Zhang Z. Encapsulation of teniposide into albumin nanoparticles with greatly lowered toxicity and enhanced antitumor activity. Int J Pharm 2015; 487:250-9. [DOI: 10.1016/j.ijpharm.2015.04.047] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Revised: 04/03/2015] [Accepted: 04/16/2015] [Indexed: 10/23/2022]
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24
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Iwanaga K, Higashiyama Y, Miyazaki M, Kakemi M. Enhancing mechanism of intestinal absorption of highly lipophilic compounds using microemulsion – Quantitative analysis of the partitioning to the mesenteric lymph in intestinal cells. Asian J Pharm Sci 2015. [DOI: 10.1016/j.ajps.2014.12.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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25
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Cao H, Wang Y, He X, Zhang Z, Yin Q, Chen Y, Yu H, Huang Y, Chen L, Xu M, Gu W, Li Y. Codelivery of sorafenib and curcumin by directed self-assembled nanoparticles enhances therapeutic effect on hepatocellular carcinoma. Mol Pharm 2015; 12:922-31. [PMID: 25622075 DOI: 10.1021/mp500755j] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Hepatocellular carcinoma (HCC) is one of the most common causes of cancer-related mortality worldwide. Herein, we first reported the codelivery of sorafenib and curcumin by directed self-assembled nanoparticles (SCN) to enhance the therapeutic effect on HCC. SCN was formed by employing the hydrophobic interactions among the lipophilic structure in sorafenib, curcumin, and similar hydrophobic segments of polyethylene glycol derivative of vitamin E succinate (PEG-VES), which comprised uniform spherical particles with particle size of 84.97 ± 6.03 nm. SCN presented superior effects over sorafenib, curcumin, and their physical mixture (Sora + Cur) on enhancing in vitro cytotoxicity and cell apoptosis in BEL-7402 cells and Hep G2 cells, and antiangiogenesis activities in tube formation and microvessel formation from aortic rings. Moreover, the tissue concentration of sorafenib and curcumin in gastrointestinal tract and major organs were significantly improved after their coassembly into SCN. In particular, in BEL-7402 cells induced tumor xenograft, SCN treatment displayed the obviously enhanced inhibitory effect on tumor progression over free drug monotherapy or their physical mixture, with significantly increased antiproliferation and antiangiogenesis capability. Thereby, the codelivered nanoassemblies of sorafenib and curcumin provided a promising strategy to enhance the combinational therapy of HCC.
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Affiliation(s)
- Haiqiang Cao
- State Key Laboratory of Drug Research & Center of Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , Shanghai 201203, China
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26
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Cao H, Zhang Z, Zhao S, He X, Yu H, Yin Q, Zhang Z, Gu W, Chen L, Li Y. Hydrophobic interaction mediating self-assembled nanoparticles of succinobucol suppress lung metastasis of breast cancer by inhibition of VCAM-1 expression. J Control Release 2015; 205:162-71. [PMID: 25598420 DOI: 10.1016/j.jconrel.2015.01.015] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Revised: 12/28/2014] [Accepted: 01/14/2015] [Indexed: 02/06/2023]
Abstract
The prevention and treatment of lung metastasis of breast cancer remain a major challenge. The vascular cell adhesion molecule-1 (VCAM-1) could provide a potential therapeutic target in lung metastasis. Herein, succinobucol (SCB), a water-insoluble potent and selective VCAM-1 inhibitor, was assembled with triblock polymer poloxamer P188 into nanoparticles due to the intermolecular hydrophobic interactions. The experimental results showed that the SCB loaded nanoparticles (SN) could greatly improve the oral delivery and suppress the lung metastasis of breast cancer. The cell migration and invasion abilities of metastatic 4T1 breast cancer cells were obviously inhibited by SN. Moreover, the VCAM-1 expression on 4T1 cells was significantly reduced by SN, and the cell-cell binding ratio of RAW 264.7 cells to 4T1 cells greatly decreased from 47.4% to 3.2%. Furthermore, the oral bioavailability of SCB was greatly improved about 13-fold by SN, and the biodistribution in major organs was evidently enhanced. In particular, in the metastatic breast cancer model, the lung metastasis was notably reduced by SN treatment, and the VCAM-1 expression in lung tissues was significantly inhibited. Thereby, SN could evoke a new effective therapeutic efficacy of SCB on lung metastasis of breast cancer by inhibition of VCAM-1 expression.
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Affiliation(s)
- Haiqiang Cao
- State key Laboratory of Drug Research & Center of Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, PR China
| | - Zhiwen Zhang
- State key Laboratory of Drug Research & Center of Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, PR China.
| | - Shuang Zhao
- State key Laboratory of Drug Research & Center of Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, PR China; Tongji School of Pharmacy, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Xinyu He
- State key Laboratory of Drug Research & Center of Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, PR China
| | - Haijun Yu
- State key Laboratory of Drug Research & Center of Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, PR China
| | - Qi Yin
- State key Laboratory of Drug Research & Center of Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, PR China
| | - Zhiping Zhang
- Tongji School of Pharmacy, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Wangwen Gu
- State key Laboratory of Drug Research & Center of Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, PR China
| | - Lingli Chen
- State key Laboratory of Drug Research & Center of Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, PR China
| | - Yaping Li
- State key Laboratory of Drug Research & Center of Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, PR China.
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27
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Patel AR, Godugu C, Wilson H, Safe S, Singh M. Evaluation of Spray BIO-Max DIM-P in Dogs for Oral Bioavailability and in Nu/nu Mice Bearing Orthotopic/Metastatic Lung Tumor Models for Anticancer Activity. Pharm Res 2015; 32:2292-300. [PMID: 25576245 DOI: 10.1007/s11095-015-1620-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Accepted: 01/05/2015] [Indexed: 11/29/2022]
Abstract
PURPOSE In an effort to prepare an oral dosage form for poorly bioavailable anti-cancer agents, we have incorporated spray drying using a customized spray gun generating enteric coated Self-emulsifying drug delivery systems. The objective of this study was to design and evaluate pharmacokinetics and pharmacodynamic characteristics of Spray BIO-Max DIM-P (SB DIM-P). METHODS SB DIM-P was prepared and optimized based on physico-chemical characteristics using design of experiment (DOE-Vr 8.0) software. Pharmacokinetic parameters in dogs and rats were evaluated and analyzed using Winonlin. Anti-tumor activity was carried out in orthotopic and metastatic lung tumor models using size M capsules in mice. RESULTS Based on the optimization using DOE analysis of SB DIM-P characteristics, formulations were selected for further investigation. Pharmacokinetic studies showed a 30% increase in oral bioavailability in rats and ~2.9 times more bioavailability of SB DIM-P compare to solution in dogs. SB DIM-P showed ~20-25% more tumor volume/weight reduction in H1650 metastatic tumor model and ~25-30% tumor volume/weight reduction in A549 orthotopic tumor model compared to DIM-P solution. CONCLUSIONS Our studies demonstrate the potential application of spray dried enteric coated self-emulsifying delivery system (SB DIM-P) to enhances oral absorption and efficacy of DIM-P in lung tumor models.
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Affiliation(s)
- Apurva R Patel
- College of Pharmacy and Pharmaceutical Sciences, Florida A&M University, Tallahassee, Florida, 32307, USA
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28
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Zhang J, Li J, Ju Y, Fu Y, Gong T, Zhang Z. Mechanism of enhanced oral absorption of morin by phospholipid complex based self-nanoemulsifying drug delivery system. Mol Pharm 2015; 12:504-13. [PMID: 25536306 DOI: 10.1021/mp5005806] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Phospholipid complex (PLC) based self-nanoemulsifying drug delivery system (PLC-SNEDDS) has been developed for efficient delivery of drugs with poor solubility and low permeability. In the present study, a BCS class IV drug and a P-glycoprotein (P-gp) substrate, morin, was selected as the model drug to elucidate the oral absorption mechanism of PLC-SNEDDS. PLC-SNEDDS was superior to PLC in protecting morin from degradation by intestinal enzymes in vitro. In situ perfusion study showed increased intestinal permeability by PLC was duodenum-specific. In contrast, PLC-SNEDDS increased morin permeability in all intestinal segments and induced a change in the main absorption site of morin from colon to ileum. Moreover, ileum conducted the lymphatic transport of PLC-SNEDDS, which was proven by microscopic intestinal visualization of Nile red labeled PLC-SNEDDS and lymph fluids in vivo. Low cytotoxicity and increased Caco-2 cell uptake suggested a safe and efficient delivery of PLC-SNEDDS. The increased membrane fluidity and disrupted actin filaments were closely associated with the increased cell uptake of PLC-SNEDDS. PLC-SNEDDS could be internalized into enterocytes as an intact form in a cholesterol-dependent manner via clathrin-mediated endocytosis and macropinocytosis. The enhanced oral absorption of morin was attributed to the P-gp inhibition by Cremophor RH and the intact internalization of M-PLC-SNEDDS into Caco-2 cells bypassing P-gp recognition. Our findings thus provide new insights into the development of novel nanoemulsions for poorly absorbed drugs.
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Affiliation(s)
- Jinjie Zhang
- Key Laboratory of Drug Targeting, Ministry of Education, Sichuan University , No. 17. Section 3, Southern Renmin Road, Chengdu 610041, People's Republic of China
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29
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He S, Yang H, Zhang R, Li Y, Duan L. Preparation and in vitro – in vivo evaluation of teniposide nanosuspensions. Int J Pharm 2015; 478:131-137. [DOI: 10.1016/j.ijpharm.2014.11.020] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Revised: 10/19/2014] [Accepted: 11/09/2014] [Indexed: 10/24/2022]
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Layer-by-layer assembled milk protein coated magnetic nanoparticle enabled oral drug delivery with high stability in stomach and enzyme-responsive release in small intestine. Biomaterials 2014; 39:105-13. [PMID: 25477177 DOI: 10.1016/j.biomaterials.2014.10.059] [Citation(s) in RCA: 122] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Accepted: 10/19/2014] [Indexed: 01/07/2023]
Abstract
We report a novel drug delivery system composed of layer-by-layer (LBL) milk protein casein (CN) coated iron oxide nanoparticles. Doxorubicin (DOX) and indocyanine green (ICG) were selected as model drug molecules, which were incorporated into the inner polymeric layer, and subsequently coated with casein. The resulting casein coated iron oxide nanoparticles (CN-DOX/ICG-IO) were stable in the acidic gastric condition with the presence of gastric protease. On the other hand, the loaded drugs were released when the casein outer layer was gradually degraded by the intestinal protease in the simulated intestine condition. Such unique properties enable maintenance of the bioactivity of the drugs and thus enhance the drug delivery efficiency. Ex vivo experiments showed that the LBL CN-DOX-IO improved the translocation of DOX across microvilli and its absorption in the small intestine sacs. In vivo imaging of mice that were orally administered with these LBL CN-ICG-IO nanostructures further confirmed that the reported drug delivery vehicles could pass the stomach without significant degradation, and then accumulated in the small intestine. In addition, the magnetic iron oxide nanoparticle core offered an MRI contrast enhancing capability for in vivo imaging guided drug delivery. Therefore, the reported LBL CN-DOX/ICG-IO is a promising oral drug delivery nanoplatform, especially for drugs that are poorly soluble in water or degradable in the gastric environment.
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31
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Zhang Z, Cao H, Jiang S, Liu Z, He X, Yu H, Li Y. Nanoassembly of probucol enables novel therapeutic efficacy in the suppression of lung metastasis of breast cancer. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2014; 10:4735-4745. [PMID: 24930590 DOI: 10.1002/smll.201400799] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2014] [Revised: 05/10/2014] [Indexed: 06/03/2023]
Abstract
Metastasis is one of the major obstacles hindering the success of cancer therapy. The directed nanoassembly of probucol results in the "DNP" system, which greatly improves the oral delivery of probucol and subsequently leads to a novel therapeutic efficacy of probucol in the suppression of lung metastasis of breast cancer. DNP is formed by employing the intermolecular hydrophobic interactions between probucol and polyethylene glycol p-(1,1,3,3-tetramethylbutyl)-phenyl ether (also known as Triton X-100). After oral administration, the probucol concentration in the intestines is surprisingly about 200 times higher if it is applied as DNP rather than free probucol; it can be absorbed into intestinal enterocytes via clathrin-mediated endocytosis and transported into the systemic circulation through the lymphatic pathway. Moreover, the oral bioavailability of probucol is significantly higher-13.55 times higher-when applied as DNP in place of free probucol. The drug concentration in major organs is also significantly increased. The in vitro measurements show that the migration and invasion abilities of 4T1 cells are obviously inhibited by DNP. In particular, in an orthotopic metastatic breast cancer model, the notable suppression of lung metastasis from DNP is observed, but no effect is seen from the free-probucol suspension. As a result, the directed drug nanoassembly may open a new route for enhancing oral drug delivery and enable new therapeutic abilities for probucol against cancer metastasis.
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Affiliation(s)
- Zhiwen Zhang
- Center of Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
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Simões SMN, Figueiras AR, Veiga F, Concheiro A, Alvarez-Lorenzo C. Polymeric micelles for oral drug administration enabling locoregional and systemic treatments. Expert Opin Drug Deliv 2014; 12:297-318. [PMID: 25227130 DOI: 10.1517/17425247.2015.960841] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
INTRODUCTION Amphiphilic block copolymers are recognized components of parenteral drug nanocarriers. However, their performance in oral administration has barely been evaluated to any great extent. AREAS COVERED This review provides an overview of the methods used to prepare drug-loaded polymeric micelles and to evaluate their stability in gastrointestinal (GI) fluids, and then analyzes in detail recent in vitro and in vivo results about their performance in oral drug delivery. Oral administration of polymeric micelles has been tested for a variety of therapeutic purposes, namely, to increase apparent drug solubility in the GI fluids and facilitate absorption, to penetrate in pathological regions of the GI tract for locoregional treatment, to carry the drug directly toward the blood stream minimizing presystemic loses, and to target the drug after oral absorption to specific tissue or cells in the body. EXPERT OPINION Each therapeutic purpose demands micelles with different performance regarding stability in the GI tract, ability to overcome physiological barriers and drug release patterns. Depending on the block copolymer composition and structure, a wealth of self-assembled micelles with different morphologies and stability can be prepared. Moreover, copolymer unimers can play a role in improving drug absorption through the GI mucosa, either by increasing membrane permeability to the drug and/or the carrier or by inhibiting drug efflux transporters or first-pass metabolism. Therefore, polymeric micelles can be pointed out as versatile vehicles to increase oral bioavailability of drugs that exhibit poor solubility or permeability and may even be an alternative to parenteral carriers when targeting is pursued.
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Affiliation(s)
- Susana M N Simões
- University of Coimbra, Faculty of Pharmacy , Coimbra , Portugal +351 239 855099 ;
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Bu H, He X, Zhang Z, Yin Q, Yu H, Li Y. A TPGS-incorporating nanoemulsion of paclitaxel circumvents drug resistance in breast cancer. Int J Pharm 2014; 471:206-13. [DOI: 10.1016/j.ijpharm.2014.05.039] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2014] [Revised: 05/19/2014] [Accepted: 05/22/2014] [Indexed: 12/27/2022]
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Swarnakar NK, Thanki K, Jain S. Enhanced antitumor efficacy and counterfeited cardiotoxicity of combinatorial oral therapy using Doxorubicin- and Coenzyme Q10-liquid crystalline nanoparticles in comparison with intravenous Adriamycin. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2014; 10:1231-41. [DOI: 10.1016/j.nano.2014.03.003] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2013] [Revised: 02/20/2014] [Accepted: 03/04/2014] [Indexed: 01/21/2023]
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Nguyen TTH, Jung SJ, Kang HK, Kim YM, Moon YH, Kim M, Kim D. Production of rubusoside from stevioside by using a thermostable lactase from Thermus thermophilus and solubility enhancement of liquiritin and teniposide. Enzyme Microb Technol 2014; 64-65:38-43. [PMID: 25152415 DOI: 10.1016/j.enzmictec.2014.07.001] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2014] [Revised: 07/03/2014] [Accepted: 07/04/2014] [Indexed: 11/29/2022]
Abstract
Solubility is an important factor for achieving the desired plasma level of drug for pharmacological response. About 40% of drugs are not soluble in water in practice and therefore are slowly absorbed, which results in insufficient and uneven bioavailability and GI toxicity. Rubusoside (Ru) is a sweetener component in herbal tea and was discovered to enhance the solubility of a number of pharmaceutically and medicinally important compounds, including anticancer compounds. In this study, thirty-one hydrolyzing enzymes were screened for the conversion of stevioside (Ste) to Ru. Recombinant lactase from Thermus thermophiles which was expressed in Escherichia coli converted stevioside to rubusoside as a main product. Immobilized lactase was prepared and used for the production of rubusoside; twelve reaction cycles were repeated with 95.4% of Ste hydrolysis and 49 g L(-1) of Ru was produced. The optimum rubusoside synthesis yield was 86% at 200 g L(-1), 1200 U lactase. The purified 10% rubusoside solution showed increased water solubility of liquiritin from 0.98 mg mL(-1) to 4.70±0.12 mg mL(-1) and 0 mg mL(-1) to 3.42±0.11 mg mL(-1) in the case of teniposide.
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Affiliation(s)
- Thi Thanh Hanh Nguyen
- Institutes of Green Bio Science & Technology, Seoul National University, Gangwon-do 232-916, Republic of Korea
| | - Seung-Jin Jung
- Korea Atomic Energy Research Institute Advanced Radiation Technology Institute, Jeollabuk-do 500-185, Republic of Korea
| | - Hee-Kyoung Kang
- Research Center for Proteinaceous Materials (RCPM), Chosun University, Gwang-Ju 501-759, Republic of Korea
| | - Young-Min Kim
- Infection Control Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeollabuk-do 580-185, Republic of Korea
| | - Young-Hwan Moon
- Audubon Sugar Institute, Louisiana State University Agricultural Center, Gabriel, LA 70776, USA
| | - Misook Kim
- Department of Food Science and Nutrition, Dankook University, Gyeonggi-do 448-701, Republic of Korea
| | - Doman Kim
- Institutes of Green Bio Science & Technology, Seoul National University, Gangwon-do 232-916, Republic of Korea; Department of Agricultural Biotechnology, Seoul National University, Seoul 151-921, Republic of Korea.
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Joshi G, Kumar A, Sawant K. Enhanced bioavailability and intestinal uptake of Gemcitabine HCl loaded PLGA nanoparticles after oral delivery. Eur J Pharm Sci 2014; 60:80-9. [PMID: 24810394 DOI: 10.1016/j.ejps.2014.04.014] [Citation(s) in RCA: 83] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2013] [Revised: 03/28/2014] [Accepted: 04/17/2014] [Indexed: 11/16/2022]
Abstract
The aim of study was to formulate PLGA nanoparticles (NPs) of Gemcitabine HCl for enhanced oral bioavailability via absorption through M cells of Peyer's patches. Commercially, the drug is available as i.v. infusion due to its short half life (8-17 min), rapid metabolism and limited tumor uptake. The NPs were prepared by multiple solvent emulsification method. Optimized formulation had particle size of 166.4±2.42 nm, and entrapment of 56.48±3.63%. TEM image revealed discrete spherical structures of NPs. DSC and FTIR studies confirmed absence of interaction between drug and polymer. In vitro and ex vivo studies demonstrated sustained release from the NPs. The enhanced absorption and uptake of NPs in Caco-2 cells and in vivo absorption in intestinal tissue after oral delivery in rats was confirmed by confocal microscopy. Transport studies in Caco-2 cells confirmed 6.37-fold permeability for NPs. In vitro antiproliferative studies confirmed marked cytotoxicity of NPs on K562 leukemia cell lines. In vivo pharmacokinetic studies in rats showed 21.47-folds bioavailability enhancement from NPs. Hence, orally delivered Gemcitabine HCl loaded NPs have the potential for improving its bioavailability and avoiding side effects associated with iv infusions as well as enhancing patient compliance through "Chemotherapy at Home".
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Affiliation(s)
- Garima Joshi
- TIFAC Centre of Relevance and Excellence in NDDS, Centre for PG Studies and Research, Pharmacy Department, The Maharaja Sayajirao University of Baroda, Donor's Plaza, Fatehgunj, Vadodara 390002, Gujarat, India.
| | - Abhinesh Kumar
- TIFAC Centre of Relevance and Excellence in NDDS, Centre for PG Studies and Research, Pharmacy Department, The Maharaja Sayajirao University of Baroda, Donor's Plaza, Fatehgunj, Vadodara 390002, Gujarat, India.
| | - Krutika Sawant
- TIFAC Centre of Relevance and Excellence in NDDS, Centre for PG Studies and Research, Pharmacy Department, The Maharaja Sayajirao University of Baroda, Donor's Plaza, Fatehgunj, Vadodara 390002, Gujarat, India.
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Agrawal U, Sharma R, Gupta M, Vyas SP. Is nanotechnology a boon for oral drug delivery? Drug Discov Today 2014; 19:1530-46. [PMID: 24786464 DOI: 10.1016/j.drudis.2014.04.011] [Citation(s) in RCA: 86] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2014] [Revised: 03/12/2014] [Accepted: 04/22/2014] [Indexed: 12/14/2022]
Abstract
The oral route for drug delivery is regarded as the optimal route for achieving therapeutic benefits owing to increased patient compliance. Despite phenomenal advances in injectable, transdermal, nasal and other routes of administration, the reality is that oral drug delivery remains well ahead of the pack as the preferred delivery route. Nanocarriers can overcome the major challenges associated with this route of administration: mainly poor solubility, stability and biocompatibility of drugs. This review focuses on the potential of various polymeric drug delivery systems in oral administration, their pharmacokinetics, in vitro and in vivo models, toxicity and regulatory aspects.
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Affiliation(s)
- Udita Agrawal
- Drug Delivery Research Laboratory, Department of Pharmaceutical Sciences, Dr H.S. Gour Vishwavidyalaya, Sagar, MP 470003, India
| | - Rajeev Sharma
- Drug Delivery Research Laboratory, Department of Pharmaceutical Sciences, Dr H.S. Gour Vishwavidyalaya, Sagar, MP 470003, India
| | - Madhu Gupta
- Drug Delivery Research Laboratory, Department of Pharmaceutical Sciences, Dr H.S. Gour Vishwavidyalaya, Sagar, MP 470003, India
| | - Suresh P Vyas
- Drug Delivery Research Laboratory, Department of Pharmaceutical Sciences, Dr H.S. Gour Vishwavidyalaya, Sagar, MP 470003, India.
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Zhang Z, Jiang S, Liu Z, Niu B, Gu W, Li Y, Cui J. Directed Self-assembled Nanoparticles of Probucol Improve Oral Delivery: Fabrication, Performance and Correlation. Pharm Res 2014; 31:2266-75. [DOI: 10.1007/s11095-014-1321-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2013] [Accepted: 01/28/2014] [Indexed: 12/24/2022]
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The use of lipid-coated nanodiamond to improve bioavailability and efficacy of sorafenib in resisting metastasis of gastric cancer. Biomaterials 2014; 35:4565-72. [PMID: 24602567 DOI: 10.1016/j.biomaterials.2014.02.024] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Accepted: 02/12/2014] [Indexed: 12/30/2022]
Abstract
The metastasis is one of the greatest challenges for successful cancer therapy. Herein, we report a lipid-coated nanodiamond (ND) system loading water-insoluble sorafenib (SND) to improve the bioavailability and efficacy on suppression of cancer metastasis. SND was homogenous nanoassemblies with the mean diameter of 127.6 ± 12.9 nm. Compared with the drug suspension, the sorafenib concentration in gastrointestinal (GI) tract and major organs was significantly increased by SND. Moreover, the oral bioavailability of sorafenib was greatly improved 7.64-fold by SND. However, the ND in SND could not be absorbed into the mucus of GI tract or distributed into major organs after oral administration. Furthermore, the sorafenib concentration in tumor tissue was markedly improved 14.95 folds by SND, and SND demonstrated an efficient and impressive tumor growth inhibition effect in tumor xenograft models. In particular, the metastasis of gastric cancer to distant organs of liver and kidney was remarkably suppressed by SND, which was verified by the detection of macroscopic metastatic nodules, histological examination and immunofluorescence measurements. Thereby, the lipid-coated ND could be a promising drug delivery platform for improving the oral bioavailability of lipophilic drugs and treatment of cancer metastasis.
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Emerging integrated nanohybrid drug delivery systems to facilitate the intravenous-to-oral switch in cancer chemotherapy. J Control Release 2014; 176:94-103. [DOI: 10.1016/j.jconrel.2013.12.030] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2013] [Revised: 12/24/2013] [Accepted: 12/24/2013] [Indexed: 12/31/2022]
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Bicontinuous cubic liquid crystalline nanoparticles for oral delivery of Doxorubicin: implications on bioavailability, therapeutic efficacy, and cardiotoxicity. Pharm Res 2013; 31:1219-38. [PMID: 24218223 DOI: 10.1007/s11095-013-1244-8] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2013] [Accepted: 10/20/2013] [Indexed: 12/13/2022]
Abstract
PURPOSE The present study explores the potential of bicontinous cubic liquid crystalline nanoparticles (LCNPs) for improving therapeutic potential of doxorubicin. METHODS Phytantriol based Dox-LCNPs were prepared using hydrotrope method, optimized for various formulation components, process variables and lyophilized. Structural elucidation of the reconstituted formulation was performed using HR-TEM and SAXS analysis. The developed formulation was subjected to exhaustive cell culture experiments for delivery potential (Caco-2 cells) and efficacy (MCF-7 cells). Finally, in vivo pharmacokinetics, pharmacodynamic studies in DMBA induced breast cancer model and cardiotoxicity were also evaluated. RESULTS The reconstituted formulation exhibited Pn3m type cubic structure, evident by SAXS and posed stability in simulated gastrointestinal fluids and at accelerated stability conditions for 6 months. Dox-LCNPs revealed significantly higher cell cytotoxicity (16.23-fold) against MCF-7 cell lines as compared to free drug owing to its preferential localization in the vicinity of nucleus. Furthermore, Caco-2 cell experiments revealed formation of reversible "virtual pathways" in the cell membrane for Dox-LCNPs and hence posed significantly higher relative oral bioavailability (17.74-fold). Subsequently, Single dose of Dox-LCNPs (per oral) led to significant reduction in % tumor burden (~42%) as compared that of ~31% observed in case of Adriamycin® (i.v.) when evaluated in DMBA induced breast cancer model. Moreover, Dox induced cardiotoxicity was also found to be significantly lower in case of Dox-LCNPs as compared to clinical formulations (Adriamycin® and Lipodox®). CONCLUSION Incorporation of Dox in the novel LCNPs demonstrated improved antitumor efficacy and safety profile and can be a viable option for oral chemotherapy.
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Quantitative analysis of the effect of triglyceride alkyl-chain length on the partitioning of highly lipophilic compounds to the mesenteric lymph in intestinal cells. Arch Pharm Res 2013; 37:937-46. [PMID: 24081442 DOI: 10.1007/s12272-013-0249-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2013] [Accepted: 09/20/2013] [Indexed: 12/26/2022]
Abstract
The purpose of this study was to quantitatively clarify the effect of alky-chain length of a triglyceride in an emulsion on the partitioning of highly lipophilic compounds into the lymph fluid after their oral administration. Highly lipophilic anthraquinone derivatives were orally administered in emulsions to rats. Emulsions composed of long-, medium-, and short-chain triglycerides (LCT, MCT, and SCT emulsions, respectively) were used. The concentrations of the compounds in plasma and lymph fluid were periodically determined and their partitioning to the lymph was calculated using a mathematical model. Intestinal absorption of all compounds was enhanced and the plasma concentrations of the compounds were found to be in the following order: LCT emulsion > MCT emulsion > SCT emulsion. The amounts of each compound recovered in the lymph were not in agreement with their lipophilicity. Quantitative analysis revealed that the partitioning of the compounds to the lymph may be determined by the solubility of the compound in the triglyceride in the form of an emulsion and the amount of triglyceride transferred to the lymph fluid. These results suggest a possibility that the amount of a compound absorbed via the lymph route after oral administration can be quantitatively controlled by the formulations.
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Zhang Z, Liu Z, Ma L, Jiang S, Wang Y, Yu H, Yin Q, Cui J, Li Y. Reversal of Multidrug Resistance by Mitochondrial Targeted Self-Assembled Nanocarrier Based on Stearylamine. Mol Pharm 2013; 10:2426-34. [DOI: 10.1021/mp400039j] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Zhiwen Zhang
- Center of Pharmaceutics, Shanghai
Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Zeying Liu
- School of Pharmacy, East China University of Science and Technology, Shanghai
200237, China
| | - Li Ma
- Center of Pharmaceutics, Shanghai
Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Shijun Jiang
- School of Pharmacy, East China University of Science and Technology, Shanghai
200237, China
| | - Yixin Wang
- Center of Pharmaceutics, Shanghai
Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Haijun Yu
- Center of Pharmaceutics, Shanghai
Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Qi Yin
- Center of Pharmaceutics, Shanghai
Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Jingbin Cui
- School of Pharmacy, East China University of Science and Technology, Shanghai
200237, China
| | - Yaping Li
- Center of Pharmaceutics, Shanghai
Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
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