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Mészáros M, Porkoláb G, Kiss L, Pilbat AM, Kóta Z, Kupihár Z, Kéri A, Galbács G, Siklós L, Tóth A, Fülöp L, Csete M, Sipos Á, Hülper P, Sipos P, Páli T, Rákhely G, Szabó-Révész P, Deli MA, Veszelka S. Niosomes decorated with dual ligands targeting brain endothelial transporters increase cargo penetration across the blood-brain barrier. Eur J Pharm Sci 2018; 123:228-240. [PMID: 30031862 DOI: 10.1016/j.ejps.2018.07.042] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 07/13/2018] [Accepted: 07/19/2018] [Indexed: 12/14/2022]
Abstract
Nanoparticles targeting transporters of the blood-brain barrier (BBB) are promising candidates to increase the brain penetration of biopharmacons. Solute carriers (SLC) are expressed at high levels in brain endothelial cells and show a specific pattern at the BBB. The aim of our study was to test glutathione and ligands of SLC transporters as single or dual BBB targeting molecules for nanovesicles. High mRNA expression levels for hexose and neutral amino acid transporting SLCs were found in isolated rat brain microvessels and our rat primary cell based co-culture BBB model. Niosomes were derivatized with glutathione and SLC ligands glucopyranose and alanine. Serum albumin complexed with Evans blue (67 kDa), which has a very low BBB penetration, was selected as a cargo. The presence of targeting ligands on niosomes, especially dual labeling, increased the uptake of the cargo molecule in cultured brain endothelial cells. This cellular uptake was temperature dependent and could be decreased with a metabolic inhibitor and endocytosis blockers filipin and cytochalasin D. Making the negative surface charge of brain endothelial cells more positive with a cationic lipid or digesting the glycocalyx with neuraminidase elevated the uptake of the cargo after treatment with targeted nanocarriers. Treatment with niosomes increased plasma membrane fluidity, suggesting the fusion of nanovesicles with endothelial cell membranes. Targeting ligands elevated the permeability of the cargo across the BBB in the culture model and in mice, and dual-ligand decoration of niosomes was more effective than single ligand labeling. Our data indicate that dual labeling with ligands of multiple SLC transporters can potentially be exploited for BBB targeting of nanoparticles.
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Affiliation(s)
- Mária Mészáros
- Institute of Biophysics, Biological Research Centre of the Hungarian Academy of Sciences, Temesvári krt. 62, H-6726 Szeged, Hungary; Doctoral School in Theoretical Medicine, Faculty of Medicine, University of Szeged, H-6720 Szeged, Hungary
| | - Gergő Porkoláb
- Institute of Biophysics, Biological Research Centre of the Hungarian Academy of Sciences, Temesvári krt. 62, H-6726 Szeged, Hungary; Foundation for the Future of Biomedical Sciences in Szeged, Pálfy u. 52/d, H-6725 Szeged, Hungary
| | - Lóránd Kiss
- Institute of Biophysics, Biological Research Centre of the Hungarian Academy of Sciences, Temesvári krt. 62, H-6726 Szeged, Hungary
| | - Ana-Maria Pilbat
- Institute of Biochemistry, Biological Research Centre of the Hungarian Academy of Sciences, Temesvári krt. 62, H-6726 Szeged, Hungary
| | - Zoltán Kóta
- Institute of Biophysics, Biological Research Centre of the Hungarian Academy of Sciences, Temesvári krt. 62, H-6726 Szeged, Hungary
| | - Zoltán Kupihár
- Department of Medical Chemistry, Faculty of Medicine, University of Szeged, Dóm tér 8, H-6720 Szeged, Hungary
| | - Albert Kéri
- Department of Inorganic and Analytical Chemistry, Faculty of Science and Informatics, University of Szeged, Dóm tér 7, H-6720 Szeged, Hungary
| | - Gábor Galbács
- Department of Inorganic and Analytical Chemistry, Faculty of Science and Informatics, University of Szeged, Dóm tér 7, H-6720 Szeged, Hungary
| | - László Siklós
- Institute of Biophysics, Biological Research Centre of the Hungarian Academy of Sciences, Temesvári krt. 62, H-6726 Szeged, Hungary
| | - András Tóth
- Institute of Biophysics, Biological Research Centre of the Hungarian Academy of Sciences, Temesvári krt. 62, H-6726 Szeged, Hungary; Department of Biotechnology, Faculty of Science and Informatics, University of Szeged, Szeged, Hungary, Közép fasor 52, H-6726 Szeged, Hungary
| | - Lívia Fülöp
- Department of Medical Chemistry, Faculty of Medicine, University of Szeged, Dóm tér 8, H-6720 Szeged, Hungary
| | - Mária Csete
- Department of Optics and Quantum Electronics, Faculty of Science and Informatics, University of Szeged, Dóm tér 9, H-6720 Szeged, Hungary
| | - Áron Sipos
- Institute of Biophysics, Biological Research Centre of the Hungarian Academy of Sciences, Temesvári krt. 62, H-6726 Szeged, Hungary
| | - Petra Hülper
- Department of Pediatrics I, University Medical Center Göttingen, Robert-Koch-Straße 40, 37075 Göttingen, Germany
| | - Péter Sipos
- Institute of Pharmaceutical Technology and Regulatory Affairs, Faculty of Pharmacy, University of Szeged, Eötvös u. 6, H-6720 Szeged, Hungary
| | - Tibor Páli
- Institute of Biophysics, Biological Research Centre of the Hungarian Academy of Sciences, Temesvári krt. 62, H-6726 Szeged, Hungary
| | - Gábor Rákhely
- Institute of Biophysics, Biological Research Centre of the Hungarian Academy of Sciences, Temesvári krt. 62, H-6726 Szeged, Hungary; Department of Biotechnology, Faculty of Science and Informatics, University of Szeged, Szeged, Hungary, Közép fasor 52, H-6726 Szeged, Hungary
| | - Piroska Szabó-Révész
- Institute of Pharmaceutical Technology and Regulatory Affairs, Faculty of Pharmacy, University of Szeged, Eötvös u. 6, H-6720 Szeged, Hungary
| | - Mária A Deli
- Institute of Biophysics, Biological Research Centre of the Hungarian Academy of Sciences, Temesvári krt. 62, H-6726 Szeged, Hungary.
| | - Szilvia Veszelka
- Institute of Biophysics, Biological Research Centre of the Hungarian Academy of Sciences, Temesvári krt. 62, H-6726 Szeged, Hungary.
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AboulFotouh K, Allam AA, El-Badry M, El-Sayed AM. Self-emulsifying drug–delivery systems modulate P-glycoprotein activity: role of excipients and formulation aspects. Nanomedicine (Lond) 2018; 13:1813-1834. [DOI: 10.2217/nnm-2017-0354] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Self-emulsifying drug–delivery systems (SEDDS) have been widely employed to ameliorate the oral bioavailability of P-glycoprotein (P-gp) substrate drugs and to overcome multidrug resistance in cancer cells. However, the role of formulation aspects in the reduced P-gp activity is not fully understood. In this review, we first explore the role of various SEDDS excipients in the reduced P-gp activity with the main emphasis on the effective excipient concentration range for excipient-mediated modulation of P-gp activity and then we discuss the synergistic effect of various formulation aspects on the excipient-mediated modulation of P-gp activity. This review provides an approach to develop a rationally designed SEDDS to overcome P-gp-mediated drug efflux.
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Affiliation(s)
- Khaled AboulFotouh
- Department of Pharmaceutics, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt
| | - Ayat A Allam
- Department of Pharmaceutics, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt
| | - Mahmoud El-Badry
- Department of Pharmaceutics, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt
| | - Ahmed M El-Sayed
- Department of Pharmaceutics, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt
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53
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AboulFotouh K, Allam AA, El-Badry M, El-Sayed AM. Role of self-emulsifying drug delivery systems in optimizing the oral delivery of hydrophilic macromolecules and reducing interindividual variability. Colloids Surf B Biointerfaces 2018; 167:82-92. [DOI: 10.1016/j.colsurfb.2018.03.034] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2018] [Revised: 02/20/2018] [Accepted: 03/23/2018] [Indexed: 10/17/2022]
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Bartos C, Jójárt-Laczkovich O, Katona G, Budai-Szűcs M, Ambrus R, Bocsik A, Gróf I, Deli MA, Szabó-Révész P. Optimization of a combined wet milling process in order to produce poly(vinyl alcohol) stabilized nanosuspension. DRUG DESIGN DEVELOPMENT AND THERAPY 2018; 12:1567-1580. [PMID: 29910603 PMCID: PMC5987755 DOI: 10.2147/dddt.s159965] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Purpose The article reports a wet milling process, where the planetary ball mill was combined with pearl milling technology to reach nanosize range of meloxicam (Mel; 100–500 nm). The main purpose was to increase the dissolution rate and extent of a poorly water-soluble Mel as nonsteroidal anti-inflammatory drug as well as to study its permeability across cultured intestinal epithelial cell layers. Methods Viscosity of milled dispersion and particle size distribution and zeta potential of Mel were investigated and differential scanning calorimeter and X-ray powder diffractometer were used to analyse the structure of the suspended Mel. Finally in vitro dissolution test and in vitro cell culture studies were made. Results It was found that the ratio of predispersion and pearls 1:1 (w/w) resulted in the most effective grinding system (200-fold particle size reduction in one step) with optimized process parameters, 437 rpm and 43 min. Nanosuspension (1% Mel and 0.5% poly[vinyl alcohol]) as an intermediate product showed a stable system with 2 weeks of holding time. This optimized nanosuspension enhanced the penetration of Mel across cultured intestinal epithelial cell layers without toxic effects. Conclusion The dissolution rate of Mel from the poly(vinyl alcohol) stabilized nanosuspension justified its applicability in the design of innovative per oral dosage form (capsule) in order to ensure/give a rapid analgesia.
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Affiliation(s)
- Csaba Bartos
- Faculty of Pharmacy, Institute of Pharmaceutical Technology and Regulatory Affairs, University of Szeged, Szeged, Hungary
| | - Orsolya Jójárt-Laczkovich
- Faculty of Pharmacy, Institute of Pharmaceutical Technology and Regulatory Affairs, University of Szeged, Szeged, Hungary
| | - Gábor Katona
- Faculty of Pharmacy, Institute of Pharmaceutical Technology and Regulatory Affairs, University of Szeged, Szeged, Hungary
| | - Mária Budai-Szűcs
- Faculty of Pharmacy, Institute of Pharmaceutical Technology and Regulatory Affairs, University of Szeged, Szeged, Hungary
| | - Rita Ambrus
- Faculty of Pharmacy, Institute of Pharmaceutical Technology and Regulatory Affairs, University of Szeged, Szeged, Hungary
| | - Alexandra Bocsik
- Institute of Biophysics, Biological Research Centre, Hungarian Academy of Sciences, Szeged, Hungary
| | - Ilona Gróf
- Institute of Biophysics, Biological Research Centre, Hungarian Academy of Sciences, Szeged, Hungary
| | - Mária Anna Deli
- Institute of Biophysics, Biological Research Centre, Hungarian Academy of Sciences, Szeged, Hungary
| | - Piroska Szabó-Révész
- Faculty of Pharmacy, Institute of Pharmaceutical Technology and Regulatory Affairs, University of Szeged, Szeged, Hungary
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55
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Harazin A, Bocsik A, Barna L, Kincses A, Váradi J, Fenyvesi F, Tubak V, Deli MA, Vecsernyés M. Protection of cultured brain endothelial cells from cytokine-induced damage by α-melanocyte stimulating hormone. PeerJ 2018; 6:e4774. [PMID: 29780671 PMCID: PMC5958884 DOI: 10.7717/peerj.4774] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Accepted: 04/23/2018] [Indexed: 12/17/2022] Open
Abstract
The blood–brain barrier (BBB), an interface between the systemic circulation and the nervous system, can be a target of cytokines in inflammatory conditions. Pro-inflammatory cytokines tumor necrosis factor-α (TNF-α) and interleukin-1β (IL-1β) induce damage in brain endothelial cells and BBB dysfunction which contribute to neuronal injury. The neuroprotective effects of α-melanocyte stimulating hormone (α-MSH) were investigated in experimental models, but there are no data related to the BBB. Based on our recent study, in which α-MSH reduced barrier dysfunction in human intestinal epithelial cells induced by TNF-α and IL-1β, we hypothesized a protective effect of α-MSH on brain endothelial cells. We examined the effect of these two pro-inflammatory cytokines, and the neuropeptide α-MSH on a culture model of the BBB, primary rat brain endothelial cells co-cultured with rat brain pericytes and glial cells. We demonstrated the expression of melanocortin-1 receptor in isolated rat brain microvessels and cultured brain endothelial cells by RT-PCR and immunohistochemistry. TNF-α and IL-1β induced cell damage, measured by impedance and MTT assay, which was attenuated by α-MSH (1 and 10 pM). The peptide inhibited the cytokine-induced increase in brain endothelial permeability, and restored the morphological changes in cellular junctions visualized by immunostaining for claudin-5 and β-catenin. Elevated production of reactive oxygen species and the nuclear translocation of NF-κB were also reduced by α-MSH in brain endothelial cells stimulated by cytokines. We demonstrated for the first time the direct beneficial effect of α-MSH on cultured brain endothelial cells, indicating that this neurohormone may be protective at the BBB.
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Affiliation(s)
- András Harazin
- Institute of Biophysics, Biological Research Centre, Hungarian Academy of Sciences, Szeged, Hungary.,Doctoral School in Biology, Faculty of Science and Informatics, University of Szeged, Szeged, Hungary
| | - Alexandra Bocsik
- Institute of Biophysics, Biological Research Centre, Hungarian Academy of Sciences, Szeged, Hungary
| | - Lilla Barna
- Institute of Biophysics, Biological Research Centre, Hungarian Academy of Sciences, Szeged, Hungary.,Doctoral School in Biology, Faculty of Science and Informatics, University of Szeged, Szeged, Hungary
| | - András Kincses
- Institute of Biophysics, Biological Research Centre, Hungarian Academy of Sciences, Szeged, Hungary
| | - Judit Váradi
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Debrecen, Hungary
| | - Ferenc Fenyvesi
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Debrecen, Hungary
| | | | - Maria A Deli
- Institute of Biophysics, Biological Research Centre, Hungarian Academy of Sciences, Szeged, Hungary
| | - Miklós Vecsernyés
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Debrecen, Hungary
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56
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Neuhaus W, Piontek A, Protze J, Eichner M, Mahringer A, Subileau EA, Lee IFM, Schulzke JD, Krause G, Piontek J. Reversible opening of the blood-brain barrier by claudin-5-binding variants of Clostridium perfringens enterotoxin's claudin-binding domain. Biomaterials 2018; 161:129-143. [DOI: 10.1016/j.biomaterials.2018.01.028] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2017] [Revised: 01/15/2018] [Accepted: 01/18/2018] [Indexed: 02/06/2023]
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57
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Fang J, Sun X, Xue B, Fang N, Zhou M. Dahuang Zexie Decoction Protects against High-Fat Diet-Induced NAFLD by Modulating Gut Microbiota-Mediated Toll-Like Receptor 4 Signaling Activation and Loss of Intestinal Barrier. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2017; 2017:2945803. [PMID: 29259643 PMCID: PMC5702401 DOI: 10.1155/2017/2945803] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Revised: 09/24/2017] [Accepted: 10/04/2017] [Indexed: 02/07/2023]
Abstract
Increasing evidence suggests that intestinal dysbiosis, intestinal barrier dysfunction, and activated Toll-like receptor 4 (TLR4) signaling play key roles in the pathogenesis of NAFLD. Dahuang Zexie Decoction (DZD) has been verified to be effective for treating NAFLD, but the mechanisms remain unclear. In this study, we investigated the effects of DZD on NAFLD rats and determined whether such effects were associated with change of the gut microbiota, downregulated activity of the TLR4 signaling pathway, and increased expressions of tight junction (TJ) proteins in the gut. Male Sprague Dawley rats were fed high-fat diet (HFD) for 16 weeks to induce NAFLD and then given DZD intervention for 4 weeks. We found that DZD reduced body and liver weights of NAFLD rats, improved serum lipid levels and liver function parameters, and relieved NAFLD. We further found that DZD changed intestinal bacterial communities, inhibited the intestinal TLR4 signaling pathway, and restored the expressions of TJ proteins in the gut. Meanwhile ten potential components of DZD had been identified. These findings suggest that DZD may protects against NAFLD by modulating gut microbiota-mediated TLR4 signaling activation and loss of intestinal barrier. However, further studies are needed to clarify the mechanism by which DZD treats NAFLD.
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Affiliation(s)
- Jing Fang
- The First College of Clinical Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Xiaoqi Sun
- Department of Police Tactics, Nanjing Forest Police College, Nanjing 210023, China
| | - Boyu Xue
- The First College of Clinical Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Nanyuan Fang
- The First College of Clinical Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
- Department of Infectious Disease, Jiangsu Province Hospital of Traditional Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210029, China
| | - Min Zhou
- The First College of Clinical Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
- Department of Infectious Disease, Jiangsu Province Hospital of Traditional Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210029, China
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Routes for Drug Translocation Across the Blood-Brain Barrier: Exploiting Peptides as Delivery Vectors. J Pharm Sci 2017; 106:2326-2334. [DOI: 10.1016/j.xphs.2017.04.080] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Revised: 04/21/2017] [Accepted: 04/24/2017] [Indexed: 01/17/2023]
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59
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Dithmer S, Staat C, Müller C, Ku MC, Pohlmann A, Niendorf T, Gehne N, Fallier-Becker P, Kittel Á, Walter FR, Veszelka S, Deli MA, Blasig R, Haseloff RF, Blasig IE, Winkler L. Claudin peptidomimetics modulate tissue barriers for enhanced drug delivery. Ann N Y Acad Sci 2017; 1397:169-184. [DOI: 10.1111/nyas.13359] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Revised: 03/20/2017] [Accepted: 03/23/2017] [Indexed: 12/18/2022]
Affiliation(s)
- Sophie Dithmer
- Leibniz Institut für Molekulare Pharmakologie; Berlin Germany
| | - Christian Staat
- Leibniz Institut für Molekulare Pharmakologie; Berlin Germany
| | - Carolin Müller
- Leibniz Institut für Molekulare Pharmakologie; Berlin Germany
| | - Min-Chi Ku
- Berlin Ultrahigh Field Facility; Max Delbrück Center for Molecular Medicine in the Helmholtz Association; Berlin Germany
| | - Andreas Pohlmann
- Berlin Ultrahigh Field Facility; Max Delbrück Center for Molecular Medicine in the Helmholtz Association; Berlin Germany
| | - Thoralf Niendorf
- Berlin Ultrahigh Field Facility; Max Delbrück Center for Molecular Medicine in the Helmholtz Association; Berlin Germany
- Experimental and Clinical Research Center; Charite and Max Delbrück Center for Molecular Medicine in the Helmholtz Association; Berlin Germany
| | - Nora Gehne
- Leibniz Institut für Molekulare Pharmakologie; Berlin Germany
| | - Petra Fallier-Becker
- Institute of Pathology and Neuropathology; University of Tuebingen; Tuebingen Germany
| | - Ágnes Kittel
- Institute of Experimental Medicine; Hungarian Academy of Sciences; Budapest Hungary
| | - Fruzsina R. Walter
- Institute of Biophysics, Biological Research Centre; Hungarian Academy of Sciences; Szeged Hungary
| | - Szilvia Veszelka
- Institute of Biophysics, Biological Research Centre; Hungarian Academy of Sciences; Szeged Hungary
| | - Maria A. Deli
- Institute of Biophysics, Biological Research Centre; Hungarian Academy of Sciences; Szeged Hungary
| | - Rosel Blasig
- Leibniz Institut für Molekulare Pharmakologie; Berlin Germany
| | | | | | - Lars Winkler
- Leibniz Institut für Molekulare Pharmakologie; Berlin Germany
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Liu M, Zhong X, Yang Z. Chitosan functionalized nanocochleates for enhanced oral absorption of cyclosporine A. Sci Rep 2017; 7:41322. [PMID: 28112262 PMCID: PMC5282608 DOI: 10.1038/srep41322] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Accepted: 12/14/2016] [Indexed: 11/17/2022] Open
Abstract
It remains a significant challenge to overcome the poor permeability of cyclosporine A and enhance its oral absorption. In this study, we have identified a positively charged chitosan that is able to induce coiling up of anionic lipids to form nanocochleates with an average size of 114.2 ± 0.8 nm, without the need for calcium ions. These functional chitosan-induced nanocochleates enhanced gastrointestinal absorption of cyclosporine A, up to a 3-fold increase in oral bioavailability. A fluorescence-labeling study confirmed that absorption mainly occurred in the duodenum and jejunum. Transport studies indicated that uptake of chitosan-induced nanocochleates by Caco-2 cells was by clathrin- and caveolae-mediated endocytosis, but not by macropinocytosis. Furthermore, three cellular tight junction proteins, ZO-1, F-actin and claudin-4, were significantly down-regulated, suggesting that chitobiose-induced nanocochleates are able to reconstruct and open tight junctions in intestinal epithelial cells to enhance drug absorption. In summary, these novel bifunctional chitosan-induced nanocochleates appear to have potential to facilitate oral delivery of cyclosporine A.
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Affiliation(s)
- Min Liu
- Department of Pharmacy, Songjiang Hospital Affiliated Shanghai First People's Hospital, Shanghai Jiao Tong University, Shanghai, China.,Urology Department, First Affiliated Hospital of Gannan Medical University, Gannan Medical University, Ganzhou, China
| | - Xiaoming Zhong
- Department of Pharmacy, Songjiang Hospital Affiliated Shanghai First People's Hospital, Shanghai Jiao Tong University, Shanghai, China.,Jiangxi Province Tumor Hospital, Nanchang, China
| | - Zhiwen Yang
- Department of Pharmacy, Songjiang Hospital Affiliated Shanghai First People's Hospital, Shanghai Jiao Tong University, Shanghai, China
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61
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Váradi J, Harazin A, Fenyvesi F, Réti-Nagy K, Gogolák P, Vámosi G, Bácskay I, Fehér P, Ujhelyi Z, Vasvári G, Róka E, Haines D, Deli MA, Vecsernyés M. Alpha-Melanocyte Stimulating Hormone Protects against Cytokine-Induced Barrier Damage in Caco-2 Intestinal Epithelial Monolayers. PLoS One 2017; 12:e0170537. [PMID: 28103316 PMCID: PMC5245816 DOI: 10.1371/journal.pone.0170537] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Accepted: 01/05/2017] [Indexed: 12/11/2022] Open
Abstract
Alpha-melanocyte-stimulating hormone (α-MSH) is a potent anti-inflammatory peptide with cytoprotective effect in various tissues. The present investigation demonstrates the ability of α-MSH to interact with intestinal epithelial cell monolayers and mitigate inflammatory processes of the epithelial barrier. The protective effect of α-MSH was studied on Caco-2 human intestinal epithelial monolayers, which were disrupted by exposure to tumor necrosis factor-α and interleukin-1β. The barrier integrity was assessed by measuring transepithelial electric resistance (TEER) and permeability for marker molecules. Caco-2 monolayers were evaluated by immunohistochemistry for expression of melanocortin-1 receptor and tight junction proteins ZO-1 and claudin-4. The activation of nuclear factor kappa beta (NF-κB) was detected by fluorescence microscopy and inflammatory cytokine expression was assessed by flow cytometric bead array cytokine assay. Exposure of Caco-2 monolayers to proinflammatory cytokines lowered TEER and increased permeability for fluorescein and albumin, which was accompanied by changes in ZO-1 and claudin-4 immunostaining. α-MSH was able to prevent inflammation-associated decrease of TEER in a dose-dependent manner and reduce the increased permeability for paracellular marker fluorescein. Further immunohistochemistry analysis revealed proinflammatory cytokine induced translocation of the NF-κB p65 subunit into Caco-2 cell nuclei, which was inhibited by α-MSH. As a result the IL-6 and IL-8 production of Caco-2 monolayers were also decreased with different patterns by the addition of α-MSH to the culture medium. In conclusion, Caco-2 cells showed a positive immunostaining for melanocortin-1 receptor and α-MSH protected Caco-2 cells against inflammatory barrier dysfunction and inflammatory activation induced by tumor necrosis factor-α and interleukin-1β cytokines.
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Affiliation(s)
- Judit Váradi
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Debrecen, Hungary
- * E-mail:
| | - András Harazin
- Institute of Biophysics, Biological Research Centre, Hungarian Academy of Sciences, Szeged, Hungary
| | - Ferenc Fenyvesi
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Debrecen, Hungary
| | - Katalin Réti-Nagy
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Debrecen, Hungary
| | - Péter Gogolák
- Department of Immunology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - György Vámosi
- Department of Biophysics and Cell Biology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Ildikó Bácskay
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Debrecen, Hungary
| | - Pálma Fehér
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Debrecen, Hungary
| | - Zoltán Ujhelyi
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Debrecen, Hungary
| | - Gábor Vasvári
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Debrecen, Hungary
| | - Eszter Róka
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Debrecen, Hungary
| | - David Haines
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Debrecen, Hungary
- Department of Pharmacology, Faculty of Pharmacy, University of Debrecen, Debrecen, Hungary
| | - Mária A. Deli
- Institute of Biophysics, Biological Research Centre, Hungarian Academy of Sciences, Szeged, Hungary
| | - Miklós Vecsernyés
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Debrecen, Hungary
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Abstract
Peptides have been used as drugs to treat various health conditions, and they are also being developed as diagnostic agents. Due to their receptor selectivity, peptides have recently been utilized for drug delivery to target drug molecules to specific types of cells (i.e. cancer cells, immune cells) to lower the side effects of the drugs. In this case, the drug is conjugated to the carrier peptide for directing the drug to the target cells (e.g. cancer cells) with higher expression of a specific receptor that recognizes the carrier peptide. As a result, the drug is directed to the target diseased cells without affecting the normal cells. Peptides are also being developed for improving drug delivery through the intestinal mucosa barrier (IMB) and the blood-brain barrier (BBB). These peptides were derived from intercellular junction proteins such as occludins, claudins, and cadherins and improve drug delivery through the IMB and BBB via the paracellular pathways. It is hypothesized that the peptides modulate protein-protein interactions in the intercellular junctions of the IMB and BBB to increase the porosity of paracellular pathways of the barriers. These modulator peptides have been shown to enhance brain delivery of small molecules and medium-sized peptides as well as a large protein such as 65 kDa albumin. In the future, this method has the potential to improve oral and brain delivery of therapeutic and diagnostic peptides and proteins.
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Stem Cells as a Promising Tool for the Restoration of Brain Neurovascular Unit and Angiogenic Orientation. Mol Neurobiol 2016; 54:7689-7705. [DOI: 10.1007/s12035-016-0286-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Accepted: 11/02/2016] [Indexed: 02/07/2023]
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64
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Modulating the paracellular pathway at the blood-brain barrier: current and future approaches for drug delivery to the CNS. DRUG DISCOVERY TODAY. TECHNOLOGIES 2016; 20:35-39. [PMID: 27986221 DOI: 10.1016/j.ddtec.2016.07.008] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Accepted: 07/13/2016] [Indexed: 11/20/2022]
Abstract
The blood-brain barrier (BBB) is the tightly regulated point of entry by which any neuro-targeting therapy must pass through. BBB modulation is a means to loosen the size exclusion properties of the barrier by temporarily interfering with the formation of intercellular tight junction (TJ) or adheren junction (AJ) complexes, allowing for diffusion of small molecule therapeutics from blood to brain. Several technologies, such as RNAi, peptidomimetics, high frequency ultrasound and nanoparticles, have been developed and refined over the years, paving the way for barrier modulation to become an effective part of conventional central nervous system therapies. Here, we review the current and future approaches aimed at facilitating enhanced drug delivery to the central nervous system (CNS).
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65
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The role of tight junctions in skin barrier function and dermal absorption. J Control Release 2016; 242:105-118. [DOI: 10.1016/j.jconrel.2016.08.007] [Citation(s) in RCA: 105] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Revised: 07/28/2016] [Accepted: 08/04/2016] [Indexed: 12/12/2022]
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66
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Nardone V, Lucarelli AP, Dalle Vedove A, Fanelli R, Tomassetti A, Belvisi L, Civera M, Parisini E. Crystal Structure of Human E-Cadherin-EC1EC2 in Complex with a Peptidomimetic Competitive Inhibitor of Cadherin Homophilic Interaction. J Med Chem 2016; 59:5089-94. [PMID: 27120112 DOI: 10.1021/acs.jmedchem.5b01487] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Cadherins are transmembrane cell adhesion proteins whose aberrant expression often correlates with cancer development and proliferation. We report the crystal structure of an E-cadherin extracellular fragment in complex with a peptidomimetic compound that was previously shown to partially inhibit cadherin homophilic adhesion. The structure reveals an unexpected binding mode and allows the identification of a druggable cadherin interface, thus paving the way to a future structure-guided design of cell adhesion inhibitors against cadherin-expressing solid tumors.
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Affiliation(s)
- Valentina Nardone
- Center for Nano Science and Technology @PoliMi, Istituto Italiano di Tecnologia , Via G. Pascoli 70/3, 20133 Milano, Italy.,Dipartimento di Chimica, Materiali and Ingegneria Chimica "Giulio Natta", Politecnico di Milano , Via L. Mancinelli 7, 20131 Milano, Italy
| | - Anna Paola Lucarelli
- Center for Nano Science and Technology @PoliMi, Istituto Italiano di Tecnologia , Via G. Pascoli 70/3, 20133 Milano, Italy
| | - Andrea Dalle Vedove
- Center for Nano Science and Technology @PoliMi, Istituto Italiano di Tecnologia , Via G. Pascoli 70/3, 20133 Milano, Italy.,Dipartimento di Chimica, Materiali and Ingegneria Chimica "Giulio Natta", Politecnico di Milano , Via L. Mancinelli 7, 20131 Milano, Italy
| | - Roberto Fanelli
- Dipartimento di Scienza e Alta Tecnologia, Università degli Studi dell'Insubria , Via Valleggio 11, 22100 Como, Italy
| | - Antonella Tomassetti
- Dipartimento di Oncologia Sperimentale e Medicina Molecolare, Fondazione IRCCS Istituto Nazionale dei Tumori , Via G. Amadeo 42, 20133 Milano, Italy
| | - Laura Belvisi
- Dipartimento di Chimica, Università degli Studi di Milano , Via C. Golgi 19, 20133 Milano, Italy
| | - Monica Civera
- Dipartimento di Chimica, Università degli Studi di Milano , Via C. Golgi 19, 20133 Milano, Italy
| | - Emilio Parisini
- Center for Nano Science and Technology @PoliMi, Istituto Italiano di Tecnologia , Via G. Pascoli 70/3, 20133 Milano, Italy
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