51
|
Liu L, Xu Y, Zhang P, You J, Li W, Chen Y, Li R, Rui B, Dou H. High-Order Assembly toward Polysaccharide-Based Complex Coacervate Nanodroplets Capable of Targeting Cancer Cells. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:8580-8588. [PMID: 32598156 DOI: 10.1021/acs.langmuir.0c01458] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
High-order assembly plays a significant role in the formation of living organisms containing a large number of biomacromolecules and, thus, enlightens the construction of nanomaterials that can load macromolecular payloads at a high efficiency. Herein, by choosing anionic hyaluronic acid (HA) as a model payload, we demonstrated how the electrostatic-interaction-induced high-order assembly can be used to load efficiently biomacromolecules into complex coacervate nanodroplets. The resultant assemblies were primarily composed of HA and cationic chitosan oligosaccharide/dextran (COS/Dex) nanogels and had a controllable structure while also exhibiting biological functionality. HA in the assemblies is capable of targeting CD44-overexpressed tumor cells through CD44-mediated endocytic pathways, which are elucidated herein. Therefore, this study provides a reliable approach for the efficient loading of macromolecular payloads into complex coacervate nanodroplets via electrostatic-attraction-induced high-order assembly.
Collapse
Affiliation(s)
- Lingshan Liu
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People's Republic of China
| | - Yuan Xu
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People's Republic of China
| | - Peipei Zhang
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People's Republic of China
| | - Jiayi You
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People's Republic of China
| | - Wei Li
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People's Republic of China
| | - Yunfeng Chen
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai 200233, People's Republic of China
| | - Rong Li
- Department of Pulmonary Medicine, Clinical Research Center, Shanghai Chest Hospital, Shanghai Jiao Tong University, 241 Huaihai West Road, Shanghai 200030, People's Republic of China
| | - Biyu Rui
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai 200233, People's Republic of China
| | - Hongjing Dou
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People's Republic of China
| |
Collapse
|
52
|
Skóra B, Szychowski KA, Gmiński J. A concise review of metallic nanoparticles encapsulation methods and their potential use in anticancer therapy and medicine. Eur J Pharm Biopharm 2020; 154:153-165. [PMID: 32681962 DOI: 10.1016/j.ejpb.2020.07.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 05/29/2020] [Accepted: 07/02/2020] [Indexed: 02/08/2023]
Abstract
Interest in the use of metallic nanoparticles (NPs) in medicine is constantly increasing. The key challenge to the introduction of NPs into anticancer treatment is to limit the contact of their surface with healthy cells and to enable specific targeting of certain tissues, for example, cancerous cells. These aspects have raised a question whether the recent methods of drug delivery allow restricting the contact of NPs with healthy and/or nontarget cells. NPs can be restricted by encapsulation, which involves entrapping them into organic layers. This review is the first to present the different approaches for the encapsulation of metallic NPs, using liposomes, dendrimers, and proteins. The types and methods of entrapping are shown in an accessible way, enriched with graphics, and the pros and cons of these methods are disputable. Furthermore, the potential uses of NP complexes in medicine are described.
Collapse
Affiliation(s)
- Bartosz Skóra
- Department of Lifestyle Disorders and Regenerative Medicine, University of Information Technology and Management in Rzeszow, Sucharskiego 2, 35-225 Rzeszow, Poland.
| | - Konrad A Szychowski
- Department of Lifestyle Disorders and Regenerative Medicine, University of Information Technology and Management in Rzeszow, Sucharskiego 2, 35-225 Rzeszow, Poland
| | - Jan Gmiński
- Department of Lifestyle Disorders and Regenerative Medicine, University of Information Technology and Management in Rzeszow, Sucharskiego 2, 35-225 Rzeszow, Poland
| |
Collapse
|
53
|
Dendrimer mediated targeted delivery of sinomenine for the treatment of acute neuroinflammation in traumatic brain injury. J Control Release 2020; 323:361-375. [DOI: 10.1016/j.jconrel.2020.04.036] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 03/16/2020] [Accepted: 04/22/2020] [Indexed: 01/04/2023]
|
54
|
Manzanares D, Ceña V. Endocytosis: The Nanoparticle and Submicron Nanocompounds Gateway into the Cell. Pharmaceutics 2020; 12:pharmaceutics12040371. [PMID: 32316537 PMCID: PMC7238190 DOI: 10.3390/pharmaceutics12040371] [Citation(s) in RCA: 232] [Impact Index Per Article: 58.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 04/10/2020] [Accepted: 04/15/2020] [Indexed: 12/11/2022] Open
Abstract
Nanoparticles (NPs) and submicron particles are increasingly used as carriers for delivering therapeutic compounds to cells. Their entry into the cell represents the initial step in this delivery process, being most of the nanoparticles taken up by endocytosis, although other mechanisms can contribute to the uptake. To increase the delivery efficiency of therapeutic compounds by NPs and submicron particles is very relevant to understand the mechanisms involved in the uptake process. This review covers the proposed pathways involved in the cellular uptake of different NPs and submicron particles types as well as the role that some of the physicochemical nanoparticle characteristics play in the uptake pathway preferentially used by the nanoparticles to gain access and deliver their cargo inside the cell.
Collapse
Affiliation(s)
- Darío Manzanares
- Unidad Asociada Neurodeath, Universidad de Castilla-La Mancha, 02006 Albacete, Spain;
- CIBERNED, Instituto de Salud Carlos III, 28031 Madrid, Spain
| | - Valentín Ceña
- Unidad Asociada Neurodeath, Universidad de Castilla-La Mancha, 02006 Albacete, Spain;
- CIBERNED, Instituto de Salud Carlos III, 28031 Madrid, Spain
- Correspondence:
| |
Collapse
|
55
|
Wong CY, Al-Salami H, Dass CR. Cellular assays and applied technologies for characterisation of orally administered protein nanoparticles: a systematic review. J Drug Target 2020; 28:585-599. [DOI: 10.1080/1061186x.2020.1726356] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Chun Y. Wong
- School of Pharmacy and Biomedical Science, Curtin University, Bentley, Australia
- Curtin Health Innovation Research Institute, Bentley, Australia
| | - Hani. Al-Salami
- School of Pharmacy and Biomedical Science, Curtin University, Bentley, Australia
- Curtin Health Innovation Research Institute, Bentley, Australia
- Biotechnology and Drug Development Research Laboratory, Curtin University, Bentley, Australia
| | - Crispin R. Dass
- School of Pharmacy and Biomedical Science, Curtin University, Bentley, Australia
- Curtin Health Innovation Research Institute, Bentley, Australia
| |
Collapse
|
56
|
Kumari M, Liu CH, Wu WC. Oligochitosan modified albumin as plasmid DNA delivery vector: Endocytic trafficking, polyplex fate, in vivo compatibility. Int J Biol Macromol 2020; 142:492-502. [DOI: 10.1016/j.ijbiomac.2019.09.121] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 09/15/2019] [Accepted: 09/16/2019] [Indexed: 01/12/2023]
|
57
|
Bayat N, McOrist N, Ariotti N, Lai M, Sia KC, Li Y, Grace JL, Quinn JF, Whittaker MR, Kavallaris M, Davis TP, Lock RB. Thiol-Reactive Star Polymers Functionalized with Short Ethoxy-Containing Moieties Exhibit Enhanced Uptake in Acute Lymphoblastic Leukemia Cells. Int J Nanomedicine 2019; 14:9795-9808. [PMID: 31853178 PMCID: PMC6914812 DOI: 10.2147/ijn.s220326] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Accepted: 11/16/2019] [Indexed: 01/27/2023] Open
Abstract
Purpose Directing nanoparticles to cancer cells without using antibodies is of great interest. Subtle changes to the surface chemistry of nanoparticles can significantly affect their biological fate, including their propensity to associate with different cell populations. For instance, nanoparticles functionalized with thiol-reactive groups can potentially enhance association with cells that over-express cell-surface thiol groups. The potential of such an approach for enhancing drug delivery for childhood acute lymphoblastic leukemia (ALL) cells has not been investigated. Herein, we investigate the impact of thiol-reactive star polymers on the cellular association and the mechanisms of uptake of the nanoparticles. Methods We prepared fluorescently labeled star polymers functionalized with an mPEG brush corona and pyridyl disulfide to examine how reactivity to exofacial thiols impacts cellular association with ALL cells. We also studied how variations to the mPEG brush composition could potentially be used as a secondary method for controlling the extent of cell association. Specifically, we examined how the inclusion of shorter diethylene glycol brush moieties into the nanoparticle corona could be used to further influence cell association. Results Star polymers incorporating both thiol-reactive and diethylene glycol brush moieties exhibited the highest cellular association, followed by those functionalized solely with thiol reactive groups compared to control nanoparticles in T and B pediatric ALL patient-derived xenografts harvested from the spleens and bone marrow of immunodeficient mice. Transfection of cells with an early endosomal marker and imaging with correlative light and electron microscopy confirmed cellular uptake. Endocytosis inhibitors revealed dynamin-dependent clathrin-mediated endocytosis as the main uptake pathway for all the star polymers. Conclusion Thiol-reactive star polymers having an mPEG brush corona that includes a proportion of diethylene glycol brush moieties represent a potential strategy for improved leukemia cell delivery.
Collapse
Affiliation(s)
- Narges Bayat
- Leukemia Biology Program, Children's Cancer Institute, Lowy Cancer Research Centre, University of New South Wales, Sydney, NSW, Australia.,School of Women's and Children's Health, Faculty of Medicine, University of New South Wales, Sydney, Australia
| | - Nathan McOrist
- Leukemia Biology Program, Children's Cancer Institute, Lowy Cancer Research Centre, University of New South Wales, Sydney, NSW, Australia
| | - Nicholas Ariotti
- Electron Microscope Unit, Mark Wainwright Analytical Centre, Chemical Sciences Building, University of New South Wales, Sydney, NSW, Australia.,School of Medical Sciences, University of New South Wales, Sydney, NSW, Australia
| | - May Lai
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia
| | - Keith Cs Sia
- Leukemia Biology Program, Children's Cancer Institute, Lowy Cancer Research Centre, University of New South Wales, Sydney, NSW, Australia.,School of Women's and Children's Health, Faculty of Medicine, University of New South Wales, Sydney, Australia
| | - Yuhuan Li
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia
| | - James L Grace
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia
| | - John F Quinn
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia
| | - Michael R Whittaker
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia
| | - Maria Kavallaris
- School of Women's and Children's Health, Faculty of Medicine, University of New South Wales, Sydney, Australia.,Tumor Biology and Targeting Program, Children's Cancer Institute, Lowy Cancer Research Centre, University of New South Wales, Sydney, NSW, Australia.,Australian Centre for Nanomedicine, ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, University of New South Wales, Sydney, NSW, Australia
| | - Thomas P Davis
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia.,Department of Chemistry, University of Warwick, Coventry, UK.,Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Richard B Lock
- Leukemia Biology Program, Children's Cancer Institute, Lowy Cancer Research Centre, University of New South Wales, Sydney, NSW, Australia.,School of Women's and Children's Health, Faculty of Medicine, University of New South Wales, Sydney, Australia
| |
Collapse
|
58
|
Wood T, Nance E. Disease-directed engineering for physiology-driven treatment interventions in neurological disorders. APL Bioeng 2019; 3:040901. [PMID: 31673672 PMCID: PMC6811362 DOI: 10.1063/1.5117299] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Accepted: 10/02/2019] [Indexed: 02/06/2023] Open
Abstract
Neurological disease is killing us. While there have long been attempts to develop therapies for both acute and chronic neurological diseases, no current treatments are curative. Additionally, therapeutic development for neurological disease takes 15 years and often costs several billion dollars. More than 96% of these therapies will fail in late stage clinical trials. Engineering novel treatment interventions for neurological disease can improve outcomes and quality of life for millions; however, therapeutics should be designed with the underlying physiology and pathology in mind. In this perspective, we aim to unpack the importance of, and need to understand, the physiology of neurological disease. We first dive into the normal physiological considerations that should guide experimental design, and then assess the pathophysiological factors of acute and chronic neurological disease that should direct treatment design. We provide an analysis of a nanobased therapeutic intervention that proved successful in translation due to incorporation of physiology at all stages of the research process. We also provide an opinion on the importance of keeping a high-level view to designing and administering treatment interventions. Finally, we close with an implementation strategy for applying a disease-directed engineering approach. Our assessment encourages embracing the complexity of neurological disease, as well as increasing efforts to provide system-level thinking in our development of therapeutics for neurological disease.
Collapse
|
59
|
Zhu Y, Liu C, Pang Z. Dendrimer-Based Drug Delivery Systems for Brain Targeting. Biomolecules 2019; 9:E790. [PMID: 31783573 PMCID: PMC6995517 DOI: 10.3390/biom9120790] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 11/14/2019] [Accepted: 11/22/2019] [Indexed: 02/06/2023] Open
Abstract
Human neuroscience has made remarkable progress in understanding basic aspects of functional organization; it is a renowned fact that the blood-brain barrier (BBB) impedes the permeation and access of most drugs to central nervous system (CNS) and that many neurological diseases remain undertreated. Therefore, a number of nanocarriers have been designed over the past few decades to deliver drugs to the brain. Among these nanomaterials, dendrimers have procured an enormous attention from scholars because of their nanoscale uniform size, ease of multi-functionalization, and available internal cavities. As hyper-branched 3D macromolecules, dendrimers can be maneuvered to transport diverse therapeutic agents, incorporating small molecules, peptides, and genes; diminishing their cytotoxicity; and improving their efficacy. Herein, the present review will give exhaustive details of extensive researches in the field of dendrimer-based vehicles to deliver drugs through the BBB in a secure and effectual manner. It is also a souvenir in commemorating Donald A. Tomalia on his 80th birthday.
Collapse
Affiliation(s)
- Yuefei Zhu
- Key Laboratory of Smart Drug Delivery, School of Pharmacy, Fudan University, Ministry of Education, 826 Zhangheng Road, Shanghai 201203, China; (Y.Z.); (C.L.)
- Department of Biomedical Engineering, Columbia University Medical Center, 3960 Broadway, New York, NY 10032, USA
| | - Chunying Liu
- Key Laboratory of Smart Drug Delivery, School of Pharmacy, Fudan University, Ministry of Education, 826 Zhangheng Road, Shanghai 201203, China; (Y.Z.); (C.L.)
| | - Zhiqing Pang
- Key Laboratory of Smart Drug Delivery, School of Pharmacy, Fudan University, Ministry of Education, 826 Zhangheng Road, Shanghai 201203, China; (Y.Z.); (C.L.)
| |
Collapse
|
60
|
Dias AP, da Silva Santos S, da Silva JV, Parise-Filho R, Igne Ferreira E, Seoud OE, Giarolla J. Dendrimers in the context of nanomedicine. Int J Pharm 2019; 573:118814. [PMID: 31759101 DOI: 10.1016/j.ijpharm.2019.118814] [Citation(s) in RCA: 101] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 10/17/2019] [Accepted: 10/18/2019] [Indexed: 01/23/2023]
Abstract
Dendrimers are globular structures, presenting an initiator core, repetitive layers starting radially from the core and terminal groups on the surface, resembling tree architecture. These structures have been studied in many biological applications, as drug, DNA, RNA and proteins delivery, as well as imaging and radiocontrast agents. With reference to that, this review focused in providing examples of dendrimers used in nanomedicine. Although most studies emphasize cancer, there are others which reveal action in the neurosystem, reducing either neuroinflammation or protein aggregation. Dendrimers can carry bioactive compounds by covalent bond (dendrimer prodrug), or by ionic interaction or adsortion in the internal space of the nanostructure. Additionally, dendrimers can be associated with other polymers, as PEG (polyethylene glycol), and with targeting structures as aptamers, antibodies, folic acid and carbohydrates. Their products in preclinical/clinical trial and those in the market are also discussed, with a total of six derivatives in clinical trials and seven products available in the market.
Collapse
Affiliation(s)
- Ana Paula Dias
- Department of Pharmacy, Faculty of Pharmaceutical Sciences, University of São Paulo - USP, São Paulo, SP 05508-900, Brazil
| | - Soraya da Silva Santos
- Department of Pharmacy, Faculty of Pharmaceutical Sciences, University of São Paulo - USP, São Paulo, SP 05508-900, Brazil
| | - João Vitor da Silva
- Department of Pharmacy, Faculty of Pharmaceutical Sciences, University of São Paulo - USP, São Paulo, SP 05508-900, Brazil
| | - Roberto Parise-Filho
- Department of Pharmacy, Faculty of Pharmaceutical Sciences, University of São Paulo - USP, São Paulo, SP 05508-900, Brazil
| | - Elizabeth Igne Ferreira
- Department of Pharmacy, Faculty of Pharmaceutical Sciences, University of São Paulo - USP, São Paulo, SP 05508-900, Brazil
| | - Omar El Seoud
- Department of Organic Chemistry, Institute of Chemistry, University of São Paulo - USP, São Paulo, SP, Brazil
| | - Jeanine Giarolla
- Department of Pharmacy, Faculty of Pharmaceutical Sciences, University of São Paulo - USP, São Paulo, SP 05508-900, Brazil.
| |
Collapse
|
61
|
Pedziwiatr-Werbicka E, Milowska K, Dzmitruk V, Ionov M, Shcharbin D, Bryszewska M. Dendrimers and hyperbranched structures for biomedical applications. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.07.013] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
|
62
|
Pengnam S, Patrojanasophon P, Rojanarata T, Ngawhirunpat T, Yingyongnarongkul BE, Radchatawedchakoon W, Opanasopit P. A novel plier-like gemini cationic niosome for nucleic acid delivery. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2019.04.032] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
63
|
Aldawsari HM, Dhaliwal HK, Aljaeid BM, Alhakamy NA, Banjar ZM, Amiji MM. Optimization of the Conditions for Plasmid DNA Delivery and Transfection with Self-Assembled Hyaluronic Acid-Based Nanoparticles. Mol Pharm 2018; 16:128-140. [PMID: 30525660 DOI: 10.1021/acs.molpharmaceut.8b00904] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Polymeric systems have been extensively studied as polyelectrolyte complexes to enhance the cellular delivery and transfection efficiency of genetic materials, such as plasmid DNA (pDNA). Here, self-assembled nanoparticles were formulated by complexation of hyaluronic acid (HA)-conjugated poly(ethylene glycol) (HA-PEG) and poly(ethylenimine) (HA-PEI), respectively, with pDNA creating relatively small, stable, and multifunctional nanoparticle complex formulations with high transfection efficiency. This formulation strategy offers high gene expression efficiency and negligible cytotoxicity in HeLa and A549 human lung cancer cell lines. To develop the ideal formulation, in vitro transfection efficiency was studied for three different nanoparticle formulations (HA-PEI/HA-PEG, HA-PEI, and HA-PEG) with different concentrations. The combination of the three polymers (HA, PEG, and PEI) was significant for the formulation to achieve the maximum gene expression results. The nanoparticles were found to be stable for up to a week at 4 °C conditions. Overall, these HA-based nanoparticles showed promising aspects that can be utilized in the designing of gene delivery vectors for cancer therapy.
Collapse
Affiliation(s)
- Hibah M Aldawsari
- Department of Pharmaceutics, Faculty of Pharmacy , King Abdulaziz University , Jeddah 21589 , KSA
| | - Harkiranpreet Kaur Dhaliwal
- Department of Pharmaceutical Sciences, School of Pharmacy , Northeastern University , Boston , Massachusetts 02115 , United States
| | - Bader Mubarak Aljaeid
- Department of Pharmaceutics, Faculty of Pharmacy , King Abdulaziz University , Jeddah 21589 , KSA
| | - Nabil A Alhakamy
- Department of Pharmaceutics, Faculty of Pharmacy , King Abdulaziz University , Jeddah 21589 , KSA
| | - Zainy Mohammad Banjar
- Department of Department of Clinical and Biochemistry, Faculty of Medicine , King Abdulaziz University , Jeddah 21589 , KSA
| | - Mansoor M Amiji
- Department of Pharmaceutical Sciences, School of Pharmacy , Northeastern University , Boston , Massachusetts 02115 , United States
| |
Collapse
|
64
|
Chitosan-Carboxymethyl-5-Fluorouracil-Folate Conjugate Particles: Microwave Modulated Uptake by Skin and Melanoma Cells. J Invest Dermatol 2018; 138:2412-2422. [DOI: 10.1016/j.jid.2018.04.037] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 04/15/2018] [Accepted: 04/16/2018] [Indexed: 12/29/2022]
|
65
|
Shi X, Tian F. Multiscale Modeling and Simulation of Nano‐Carriers Delivery through Biological Barriers—A Review. ADVANCED THEORY AND SIMULATIONS 2018. [DOI: 10.1002/adts.201800105] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Xinghua Shi
- CAS Key Laboratory for Nanosystem and Hierarchy FabricationCAS Center for Excellence in NanoscienceNational Center for Nanoscience and TechnologyChinese Academy of Sciences Beijing 100190 China
- School of Nanoscience and TechnologyUniversity of Chinese Academy of Sciences NO.19A Yuquan Road Beijing 100049 China
| | - Falin Tian
- CAS Key Laboratory for Nanosystem and Hierarchy FabricationCAS Center for Excellence in NanoscienceNational Center for Nanoscience and TechnologyChinese Academy of Sciences Beijing 100190 China
- School of Nanoscience and TechnologyUniversity of Chinese Academy of Sciences NO.19A Yuquan Road Beijing 100049 China
| |
Collapse
|
66
|
Turk BR, Nemeth CL, Marx JS, Tiffany C, Jones R, Theisen B, Kambhampati S, Ramireddy R, Singh S, Rosen M, Kaufman ML, Murray CF, Watkins PA, Kannan S, Kannan R, Fatemi A. Dendrimer-N-acetyl-L-cysteine modulates monophagocytic response in adrenoleukodystrophy. Ann Neurol 2018; 84:452-462. [PMID: 30069915 PMCID: PMC6454885 DOI: 10.1002/ana.25303] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 07/12/2018] [Accepted: 07/22/2018] [Indexed: 12/29/2022]
Abstract
OBJECTIVE X-linked adrenoleukodystrophy (ALD) is a neurodegenerative disorder due to mutations in the peroxisomal very long-chain fatty acyl-CoA transporter, ABCD1, with limited therapeutic options. ALD may manifest in a slowly progressive adrenomyeloneuropathy (AMN) phenotype, or switch to rapid inflammatory demyelinating cerebral disease (cALD), in which microglia have been shown to play a pathophysiological role. The aim of this study was to determine the role of patient phenotype in the immune response of ex vivo monophagocytic cells to stimulation, and to evaluate the efficacy of polyamidoamine dendrimer conjugated to the antioxidant precursor N-acetyl-cysteine (NAC) in modulating this immune response. METHODS Human monophagocytic cells were derived from fresh whole blood, from healthy (n = 4), heterozygote carrier (n = 4), AMN (n = 7), and cALD (n = 4) patients. Cells were exposed to very long-chain fatty acids (VLCFAs; C24:0 and C26:0) and treated with dendrimer-NAC (D-NAC). RESULTS Ex vivo exposure to VLCFAs significantly increased tumor necrosis factor α (TNFα) and glutamate secretion from cALD patient macrophages. Additionally, a significant reduction in total intracellular glutathione was observed in cALD patient cells. D-NAC treatment dose-dependently reduced TNFα and glutamate secretion and replenished total intracellular glutathione levels in cALD patient macrophages, more efficiently than NAC. Similarly, D-NAC treatment decreased glutamate secretion in AMN patient cells. INTERPRETATION ALD phenotypes display unique inflammatory profiles in response to VLCFA stimulation, and therefore ex vivo monophagocytic cells may provide a novel test bed for therapeutic agents. Based on our findings, D-NAC may be a viable therapeutic strategy for the treatment of cALD. Ann Neurol 2018;84:452-462.
Collapse
Affiliation(s)
- Bela R Turk
- Moser Center for Leukodystrophies, Kennedy Krieger Institute
- Department of Neurology, Johns Hopkins University School of Medicine
| | | | - Joel S Marx
- Moser Center for Leukodystrophies, Kennedy Krieger Institute
| | - Carol Tiffany
- Moser Center for Leukodystrophies, Kennedy Krieger Institute
| | - Richard Jones
- Moser Center for Leukodystrophies, Kennedy Krieger Institute
| | | | - Siva Kambhampati
- Center for Nanomedicine/Ophthalmology, Johns Hopkins Wilmer Eye Institute
| | - Raj Ramireddy
- Center for Nanomedicine/Ophthalmology, Johns Hopkins Wilmer Eye Institute
| | - Sarabdeep Singh
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Melissa Rosen
- Moser Center for Leukodystrophies, Kennedy Krieger Institute
| | | | - Connor F Murray
- Moser Center for Leukodystrophies, Kennedy Krieger Institute
| | - Paul A Watkins
- Moser Center for Leukodystrophies, Kennedy Krieger Institute
- Department of Neurology, Johns Hopkins University School of Medicine
| | - Sujatha Kannan
- Moser Center for Leukodystrophies, Kennedy Krieger Institute
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Rangaramanujam Kannan
- Moser Center for Leukodystrophies, Kennedy Krieger Institute
- Center for Nanomedicine/Ophthalmology, Johns Hopkins Wilmer Eye Institute
| | - Ali Fatemi
- Moser Center for Leukodystrophies, Kennedy Krieger Institute
- Department of Neurology, Johns Hopkins University School of Medicine
| |
Collapse
|
67
|
Gholami L, Tafaghodi M, Abbasi B, Daroudi M, Kazemi Oskuee R. Preparation of superparamagnetic iron oxide/doxorubicin loaded chitosan nanoparticles as a promising glioblastoma theranostic tool. J Cell Physiol 2018; 234:1547-1559. [DOI: 10.1002/jcp.27019] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Accepted: 06/25/2018] [Indexed: 12/25/2022]
Affiliation(s)
- Leila Gholami
- Neurogenic Inflammation Research Center, Mashhad University of Medical Sciences Mashhad Iran
- Department of Modern Sciences and Technologies Faculty of Medicine, Mashhad University of Medical Sciences Mashhad Iran
| | - Mohsen Tafaghodi
- Nanotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences Mashhad Iran
| | - Bita Abbasi
- Department of Radiology Mashhad University of Medical Sciences Mashhad Iran
| | - Majid Daroudi
- Department of Modern Sciences and Technologies Faculty of Medicine, Mashhad University of Medical Sciences Mashhad Iran
- Nuclear Medicine Research Center (NMRC), Mashhad University of Medical Sciences Mashhad Iran
| | - Reza Kazemi Oskuee
- Neurogenic Inflammation Research Center, Mashhad University of Medical Sciences Mashhad Iran
- Department of Medical Biotechnology Faculty of Medicine, Mashhad University of Medical Sciences Mashhad Iran
| |
Collapse
|
68
|
Sharma A, Porterfield JE, Smith E, Sharma R, Kannan S, Kannan RM. Effect of mannose targeting of hydroxyl PAMAM dendrimers on cellular and organ biodistribution in a neonatal brain injury model. J Control Release 2018; 283:175-189. [PMID: 29883694 PMCID: PMC6091673 DOI: 10.1016/j.jconrel.2018.06.003] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 05/21/2018] [Accepted: 06/02/2018] [Indexed: 01/02/2023]
Abstract
Neurotherapeutics for the treatment of central nervous system (CNS) disorders must overcome challenges relating to the blood-brain barrier (BBB), brain tissue penetration, and the targeting of specific cells. Neuroinflammation mediated by activated microglia is a major hallmark of several neurological disorders, making these cells a desirable therapeutic target. Building on the promise of hydroxyl-terminated generation four polyamidoamine (PAMAM) dendrimers (D4-OH) for penetrating the injured BBB and targeting activated glia, we explored if conjugation of targeting ligands would enhance and modify brain and organ uptake. Since mannose receptors [cluster of differentiation (CD) 206] are typically over-expressed on injured microglia, we conjugated mannose to the surface of multifunctional D4-OH using highly efficient, atom-economical, and orthogonal Cu(I)-catalyzed alkyne-azide cycloaddition (CuAAC) click chemistry and evaluated the effect of mannose conjugation on the specific cell uptake of targeted and non-targeted dendrimers both in vitro and in vivo. In vitro results indicate that the conjugation of mannose as a targeting ligand significantly changes the mechanism of dendrimer internalization, giving mannosylated dendrimer a preference for mannose receptor-mediated endocytosis as opposed to non-specific fluid phase endocytosis. We further investigated the brain uptake and biodistribution of targeted and non-targeted fluorescently labeled dendrimers in a maternal intrauterine inflammation-induced cerebral palsy (CP) rabbit model using quantification methods based on fluorescence spectroscopy and confocal microscopy. We found that the conjugation of mannose modified the distribution of D4-OH throughout the body in this neonatal rabbit CP model without lowering the amount of dendrimer delivered to injured glia in the brain, even though significantly higher glial uptake was not observed in this model. Mannose conjugation to the dendrimer modifies the dendrimer's interaction with cells, but does not minimize its inherent inflammation-targeting abilities.
Collapse
Affiliation(s)
- Anjali Sharma
- Center for Nanomedicine, Department of Ophthalmology, Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
| | - Joshua E Porterfield
- Center for Nanomedicine, Department of Ophthalmology, Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA; Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Elizabeth Smith
- Center for Nanomedicine, Department of Ophthalmology, Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA; Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Rishi Sharma
- Center for Nanomedicine, Department of Ophthalmology, Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
| | - Sujatha Kannan
- Center for Nanomedicine, Department of Ophthalmology, Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA; Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA; Hugo W. Moser Research Institute at Kennedy Krieger, Inc., Baltimore, MD 21205, USA; Kennedy Krieger Institute - Johns Hopkins University for Cerebral Palsy Research Excellence, Baltimore, MD 21218, USA
| | - Rangaramanujam M Kannan
- Center for Nanomedicine, Department of Ophthalmology, Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA; Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA; Hugo W. Moser Research Institute at Kennedy Krieger, Inc., Baltimore, MD 21205, USA; Kennedy Krieger Institute - Johns Hopkins University for Cerebral Palsy Research Excellence, Baltimore, MD 21218, USA.
| |
Collapse
|
69
|
Monroe M, Flexner C, Cui H. Harnessing nanostructured systems for improved treatment and prevention of HIV disease. Bioeng Transl Med 2018; 3:102-123. [PMID: 30065966 PMCID: PMC6063869 DOI: 10.1002/btm2.10096] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 05/15/2018] [Accepted: 05/17/2018] [Indexed: 12/12/2022] Open
Abstract
Combination antiretroviral therapy effectively controls human immunodeficiency virus (HIV) viral replication, delaying the progression to acquired immune deficiency syndrome and improving and extending quality of life of patients. However, the inability of antiretroviral therapeutics to target latent virus and their poor penetration of viral reserve tissues result in the need for continued treatment for the life of the patient. Side effects from long-term antiretroviral use and the development of drug resistance due to patient noncompliance are also continuing problems. Nanostructured systems of antiretroviral therapeutics have the potential to improve targeted delivery to viral reservoirs, reduce drug toxicity, and increase dosing intervals, thereby improving treatment outcomes and enhancing patient adherence. Despite these advantages, very few nanostructured antiretroviral delivery systems have made it to clinical trials due to challenges in preclinical and clinical development. In this context, we review the current challenges in HIV disease management, and the recent progress in leveraging the unique performance of nanostructured systems in therapeutic delivery for improved treatment and prevention of this incurable human disease.
Collapse
Affiliation(s)
- Maya Monroe
- Dept. of Chemical and Biomolecular Engineering The Johns Hopkins University, 3400 N Charles Street Baltimore MD 21218.,Institute for NanoBioTechnology The Johns Hopkins University, 3400 N Charles Street Baltimore MD 21218
| | - Charles Flexner
- Div. of Clinical Pharmacology and Infectious Diseases Johns Hopkins University School of Medicine and Bloomberg School of Public Health Baltimore MD 21205
| | - Honggang Cui
- Dept. of Chemical and Biomolecular Engineering The Johns Hopkins University, 3400 N Charles Street Baltimore MD 21218.,Institute for NanoBioTechnology The Johns Hopkins University, 3400 N Charles Street Baltimore MD 21218.,Dept. of Oncology, Sidney Kimmel Comprehensive Cancer Center The Johns Hopkins University School of Medicine Baltimore MD 21205.,Center for Nanomedicine The Wilmer Eye Institute, The Johns Hopkins University School of Medicine Baltimore MD 21231
| |
Collapse
|
70
|
Ficker M, Theeuwen MJM, Janaszewska A, Gorzkiewicz M, Svenningsen SW, Klajnert-Maculewicz B, Christensen JB. Complexes of Indomethacin with 4-Carbomethoxy-pyrrolidone PAMAM Dendrimers Show Improved Anti-inflammatory Properties and Temperature-Dependent Binding and Release Profile. Mol Pharm 2018; 15:3573-3582. [PMID: 30011214 DOI: 10.1021/acs.molpharmaceut.8b00567] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
COX-2 inhibitors such as nonsteroidal anti-inflammatory drugs (NSAIDs) are the most common treatment for chronic inflammatory diseases like arthritis and atherosclerosis. However, they are associated with severe side effects such as cardiovascular events or stomach bleeding, due to coinhibition of other enzymes (COX1) and off-target accumulation. PAMAM dendrimers can solubilize lipophilic drugs and increase their circulation time; furthermore, PAMAM dendrimers seem to have some accumulation in inflammatory sides. Three different generations of 4-carbomethoxypyrrolidone (Pyr) surface-modified PAMAM dendrimers were complexed with the NSAID drug indomethacin, and their in-solution thermodynamic profiles were studied by means of NMR experiments. The binding stoichiometry was found dependent on solvent system and dendrimer generation. Larger dendrimers (G3-Pyr) were found to bind indomethacin through entropy driven binding mode, while G1-Pyr and G2-Pyr expressed an enthalpy driven complex formation, which means that the binding constants have a generational temperature dependency. G1/2-Pyr showed reduced binding with increasing temperature, which could be important for drug release at inflammatory sites, which have, in general, elevated temperatures. In vitro studies elucidated that the indomethacin drug remained its activity when delivered as a dendrimer-indomethacin complex. A slight reduction in toxicity profile was noticed for G2/G3-Pyr-indomethacin dendrimers. Both free indomethacin and dendrimer-indomethacin complex inhibited a variety of pro-inflammatory cytokines in LPS treated cells. However, only the indo-dendrimer complexes showed a significant reduction of IL-1β in LPS-treated THP-1 cells, which was not present in the control with free indomethacin.
Collapse
Affiliation(s)
- Mario Ficker
- Department of Chemistry, Faculty of Science , University of Copenhagen , Thorvaldsensvej 40 , DK-1871 Frederiksberg , Denmark
| | - Matthijs J M Theeuwen
- Department of Chemistry, Faculty of Science , University of Copenhagen , Thorvaldsensvej 40 , DK-1871 Frederiksberg , Denmark
| | - Anna Janaszewska
- Department of General Biophysics, Faculty of Biology and Environmental Protection , University of Lodz , 90-236 Lodz , Poland
| | - Michał Gorzkiewicz
- Department of General Biophysics, Faculty of Biology and Environmental Protection , University of Lodz , 90-236 Lodz , Poland
| | - Søren W Svenningsen
- Department of Chemistry, Faculty of Science , University of Copenhagen , Thorvaldsensvej 40 , DK-1871 Frederiksberg , Denmark
| | - Barbara Klajnert-Maculewicz
- Department of General Biophysics, Faculty of Biology and Environmental Protection , University of Lodz , 90-236 Lodz , Poland
| | - Jørn B Christensen
- Department of Chemistry, Faculty of Science , University of Copenhagen , Thorvaldsensvej 40 , DK-1871 Frederiksberg , Denmark
| |
Collapse
|
71
|
Alfatama M, Lim LY, Wong TW. Alginate–C18 Conjugate Nanoparticles Loaded in Tripolyphosphate-Cross-Linked Chitosan–Oleic Acid Conjugate-Coated Calcium Alginate Beads as Oral Insulin Carrier. Mol Pharm 2018; 15:3369-3382. [DOI: 10.1021/acs.molpharmaceut.8b00391] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
| | - Lee Yong Lim
- Pharmacy, Centre for Optimisation of Medicines, School of Allied Health, The University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia
| | | |
Collapse
|
72
|
PAMAM dendrimer - cell membrane interactions. Adv Colloid Interface Sci 2018; 257:1-18. [PMID: 30008347 DOI: 10.1016/j.cis.2018.06.005] [Citation(s) in RCA: 140] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 06/20/2018] [Accepted: 06/21/2018] [Indexed: 12/16/2022]
Abstract
PAMAM dendrimers have been conjectured for a wide range of biomedical applications due to their tuneable physicochemical properties. However, their application has been hindered by uncertainties in their cytotoxicity, which is influenced by dendrimer generation (i.e. size and surface group density), surface chemistry, and dosage, as well as cell specificity. In this review, biomedical applications of polyamidoamine (PAMAM) dendrimers and some related cytotoxicity studies are first outlined. Alongside these in vitro experiments, lipid membranes such as supported lipid bilayers (SLBs), liposomes, and Langmuir monolayers have been used as cell membrane models to study PAMAM dendrimer-membrane interactions. Related experimental and theoretical studies are summarized, and the physical insights from these studies are discussed to shed light on the fundamental understanding of PAMAM dendrimer-cell membrane interactions. We conclude with a summary of some questions that call for further investigations.
Collapse
|
73
|
Sharma R, Sharma A, Kambhampati SP, Reddy RR, Zhang Z, Cleland JL, Kannan S, Kannan RM. Scalable synthesis and validation of PAMAM dendrimer- N-acetyl cysteine conjugate for potential translation. Bioeng Transl Med 2018; 3:87-101. [PMID: 30065965 PMCID: PMC6063872 DOI: 10.1002/btm2.10094] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 04/25/2018] [Accepted: 04/26/2018] [Indexed: 01/13/2023] Open
Abstract
Dendrimer-N-acetyl cysteine (D-NAC) conjugate has shown significant promise in multiple preclinical models of brain injury and is undergoing clinical translation. D-NAC is a generation-4 hydroxyl-polyamidoamine dendrimer conjugate where N-acetyl cysteine (NAC) is covalently bound through disulfide linkages on the surface of the dendrimer. It has shown remarkable potential to selectively target and deliver NAC to activated microglia and astrocytes at the site of brain injury in several animal models, producing remarkable improvements in neurological outcomes at a fraction of the free drug dose. Here we present a highly efficient, scalable, greener, well-defined route to the synthesis of D-NAC, and validate the structure, stability and activity to define the benchmarks for this compound. This newly developed synthetic route has significantly reduced the synthesis time from three weeks to one week, uses industry-friendly solvents/reagents, and involves simple purification procedures, potentially enabling efficient scale up.
Collapse
Affiliation(s)
- Rishi Sharma
- Center for Nanomedicine, Department of OphthalmologyWilmer Eye Institute Johns Hopkins University School of MedicineBaltimoreMD21287
| | - Anjali Sharma
- Center for Nanomedicine, Department of OphthalmologyWilmer Eye Institute Johns Hopkins University School of MedicineBaltimoreMD21287
| | - Siva P. Kambhampati
- Center for Nanomedicine, Department of OphthalmologyWilmer Eye Institute Johns Hopkins University School of MedicineBaltimoreMD21287
| | - Rajsekar Rami Reddy
- Center for Nanomedicine, Department of OphthalmologyWilmer Eye Institute Johns Hopkins University School of MedicineBaltimoreMD21287
| | - Zhi Zhang
- Dept. of Anesthesiology and Critical Care MedicineJohns Hopkins University School of MedicineBaltimoreMD21287
| | | | - Sujatha Kannan
- Center for Nanomedicine, Department of OphthalmologyWilmer Eye Institute Johns Hopkins University School of MedicineBaltimoreMD21287
- Dept. of Anesthesiology and Critical Care MedicineJohns Hopkins University School of MedicineBaltimoreMD21287
- Hugo W. Moser Research Institute at Kennedy Krieger, Inc.BaltimoreMD21205
- Kennedy Krieger Institute – Johns Hopkins University for Cerebral Palsy Research ExcellenceBaltimoreMD21287
| | - Rangaramanujam M. Kannan
- Center for Nanomedicine, Department of OphthalmologyWilmer Eye Institute Johns Hopkins University School of MedicineBaltimoreMD21287
- Hugo W. Moser Research Institute at Kennedy Krieger, Inc.BaltimoreMD21205
- Kennedy Krieger Institute – Johns Hopkins University for Cerebral Palsy Research ExcellenceBaltimoreMD21287
- Dept.of Chemical and Biomolecular EngineeringJohns Hopkins UniversityBaltimoreMD21218
| |
Collapse
|
74
|
McMahon MT, Bulte JWM. Two decades of dendrimers as versatile MRI agents: a tale with and without metals. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2018; 10:e1496. [PMID: 28895298 PMCID: PMC5989322 DOI: 10.1002/wnan.1496] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 07/25/2017] [Accepted: 08/02/2017] [Indexed: 12/24/2022]
Abstract
Dendrimers or dendritic polymers are a class of compounds with great potential for nanomedical use. Some of their properties, including their rigidity, low polydispersity and the ease with which their surfaces can be modified make them particularly well suited for use as MRI diagnostic or theranostic agents. For the past 20 years, researchers have recognized this potential and refined dendrimer formulations to optimize these nanocarriers for a host of MRI applications, including blood pool imaging agents, lymph node imaging agents, tumor-targeted theranostic agents and cell tracking agents. This review summarizes the various types of dendrimers according to the type of MR contrast they can provide. This includes the metallic T1 , T2 and paraCEST imaging agents, and the non-metallic diaCEST and fluorinated (19 F) heteronuclear imaging agents. This article is categorized under: Diagnostic Tools > In Vivo Nanodiagnostics and Imaging Implantable Materials and Surgical Technologies > Nanomaterials and Implants.
Collapse
Affiliation(s)
- Michael T. McMahon
- The Russell H. Morgan Department of Radiology and Radiological Science, Division of MR Research, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
- F. M. Kirby Research Center for Functional Brain Imaging, Kennedy Krieger Institute, Baltimore, MD, USA
| | - Jeff W. M. Bulte
- The Russell H. Morgan Department of Radiology and Radiological Science, Division of MR Research, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
- F. M. Kirby Research Center for Functional Brain Imaging, Kennedy Krieger Institute, Baltimore, MD, USA
- Cellular Imaging Section and Vascular Biology Program, Institute for Cell Engineering, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Biomedical Engineering, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Chemical & Biomolecular Engineering, The Johns Hopkins University Whiting School of Engineering, Baltimore, MD, USA
| |
Collapse
|
75
|
Preferential and Increased Uptake of Hydroxyl-Terminated PAMAM Dendrimers by Activated Microglia in Rabbit Brain Mixed Glial Culture. Molecules 2018; 23:molecules23051025. [PMID: 29702566 PMCID: PMC6102539 DOI: 10.3390/molecules23051025] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 04/18/2018] [Accepted: 04/20/2018] [Indexed: 01/05/2023] Open
Abstract
Polyamidoamine (PAMAM) dendrimers are multifunctional nanoparticles with tunable physicochemical features, making them promising candidates for targeted drug delivery in the central nervous system (CNS). Systemically administered dendrimers have been shown to localize in activated glial cells, which mediate neuroinflammation in the CNS. These dendrimers delivered drugs specifically to activated microglia, producing significant neurological improvements in multiple brain injury models, including in a neonatal rabbit model of cerebral palsy. To gain further insight into the mechanism of dendrimer cell uptake, we utilized an in vitro model of primary glial cells isolated from newborn rabbits to assess the differences in hydroxyl-terminated generation 4 PAMAM dendrimer (D4-OH) uptake by activated and non-activated glial cells. We used fluorescently-labelled D4-OH (D-Cy5) as a tool for investigating the mechanism of dendrimer uptake. D4-OH PAMAM dendrimer uptake was determined by fluorescence quantification using confocal microscopy and flow cytometry. Our results indicate that although microglial cells in the mixed cell population demonstrate early uptake of dendrimers in this in vitro system, activated microglia take up more dendrimer compared to resting microglia. Astrocytes showed delayed and limited uptake. We also illustrated the differences in mechanism of uptake between resting and activated microglia using different pathway inhibitors. Both resting and activated microglia primarily employed endocytotic pathways, which are enhanced in activated microglial cells. Additionally, we demonstrated that hydroxyl terminated dendrimers are taken up by primary microglia using other mechanisms including pinocytosis, caveolae, and aquaporin channels for dendrimer uptake.
Collapse
|
76
|
Xu Y, Zheng Y, Wu L, Zhu X, Zhang Z, Huang Y. Novel Solid Lipid Nanoparticle with Endosomal Escape Function for Oral Delivery of Insulin. ACS APPLIED MATERIALS & INTERFACES 2018; 10:9315-9324. [PMID: 29484890 DOI: 10.1021/acsami.8b00507] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Although nanoparticles (NPs) have been demonstrated as promising tools for improving oral absorption of biotherapeutics, most of them still have very limited oral bioavailability. Lyso-endosomal degradation in epithelial cells is one of the important but often-neglected physiological barriers, limiting the transport of cargoes across the intestinal epithelium. We herein reported a solid lipid nanoparticle (SLN) platform with a unique feature of endosomal escape for oral protein drug delivery. The SLNs consisted of a solid-lipid shell, which contained an endosomal escape agent (GLFEAIEGFIENGWEGMIDGWYG, HA2), and an aqueous core that is loaded with insulin (INS HA2-O-SLNs). SLNs without and with the HA2 peptide in the aqueous core (INS SLNs and INS HA2-W-SLNs, respectively) were used as the control groups. Our study showed that INS HA2-O-SLNs effectively facilitated the escape of the loaded insulin from the acidic endosomes, which preserved the biological activity of insulin to a greater extent during the intracellular transport. The spatial location of the HA2 peptide was demonstrated to determine the endosomal escape efficiency. As demonstrated in the intracellular trafficking of SLNs, INS HA2-O-SLNs displayed much less distribution in late endosomes and lysosomes. Meanwhile, insulin in INS HA2-O-SLNs exhibited the highest transepithelial permeation efficiency, with 2.19 and 1.72 folds higher accumulated amount in the basolateral side as compared to that in INS SLNs and INS HA2-W-SLNs. In addition, insulin from INS HA2-O-SLNs exhibited the highest insulin permeation in various regions of small intestines. INS HA2-O-SLNs generated an excellent hypoglycemic response following oral administration in diabetic rats. Thus, such functional SLNs demonstrated a great potency for oral delivery of peptide/protein drugs.
Collapse
Affiliation(s)
- Yining Xu
- Key Laboratory of Drug Targeting and Drug Delivery System (Ministry of Education), West China School of Pharmacy , Sichuan University , No. 17, Block 3, Southern Renmin Road , Chengdu 610041 Sichuan , China
| | - Yaxian Zheng
- Key Laboratory of Drug Targeting and Drug Delivery System (Ministry of Education), West China School of Pharmacy , Sichuan University , No. 17, Block 3, Southern Renmin Road , Chengdu 610041 Sichuan , China
| | - Lei Wu
- Key Laboratory of Drug Targeting and Drug Delivery System (Ministry of Education), West China School of Pharmacy , Sichuan University , No. 17, Block 3, Southern Renmin Road , Chengdu 610041 Sichuan , China
| | - Xi Zhu
- Key Laboratory of Drug Targeting and Drug Delivery System (Ministry of Education), West China School of Pharmacy , Sichuan University , No. 17, Block 3, Southern Renmin Road , Chengdu 610041 Sichuan , China
| | - Zhirong Zhang
- Key Laboratory of Drug Targeting and Drug Delivery System (Ministry of Education), West China School of Pharmacy , Sichuan University , No. 17, Block 3, Southern Renmin Road , Chengdu 610041 Sichuan , China
| | - Yuan Huang
- Key Laboratory of Drug Targeting and Drug Delivery System (Ministry of Education), West China School of Pharmacy , Sichuan University , No. 17, Block 3, Southern Renmin Road , Chengdu 610041 Sichuan , China
| |
Collapse
|
77
|
Hu Q, Chen Q, Yan X, Ding B, Chen D, Cheng L. Chondrocyte affinity peptide modified PAMAM conjugate as a nanoplatform for targeting and retention in cartilage. Nanomedicine (Lond) 2018. [PMID: 29528264 DOI: 10.2217/nnm-2017-0335] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
AIM To develop a nanocarrier for targeted delivery of agents to the cartilage. MATERIALS & METHODS Chondrocyte affinity peptide modified PEGylated polyamidoamine conjugates (CAP-PEG-PAMAM) were prepared and rhodamine B isothiocyanate (RB) fluorophore was linked on them for comparative biological tracing and profiling. RESULTS CAP4-PP-RB exhibited much more efficient cellular uptake in vitro than that of PEG-PAMAM-RB. Both the conjugates were likely internalized by chondrocytes via clathrin and caveolin co-mediated endocytosis, and delivered to lysosomes. In vivo imaging demonstrated the fluorescein-labeled nanocarrier was capable to persist in the joint cavity of rats for a prolonged time. Furthermore, the CAP4-PEG-PAMAM showed a good biocompatibility and enhanced penetration effects in vivo. CONCLUSION CAP-PEG-PAMAM could be an effective nanocarrier for intra-articular delivery of agents to cartilage.
Collapse
Affiliation(s)
- Qing Hu
- Department of Pharmaceutics, College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, PR China.,Department of Pharmaceutics, College of Pharmaceutical Sciences, Fujian Medical University, Fuzhou 350108, PR China
| | - Qing Chen
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, PR China
| | - Xiuyun Yan
- Department of Pharmaceutics, College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, PR China
| | - Bomei Ding
- Department of Pharmaceutics, College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, PR China
| | - Dawei Chen
- Department of Pharmaceutics, College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, PR China.,School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, PR China
| | - Lifang Cheng
- Department of Pharmaceutics, College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, PR China
| |
Collapse
|
78
|
Alshehri A, Grabowska A, Stolnik S. Pathways of cellular internalisation of liposomes delivered siRNA and effects on siRNA engagement with target mRNA and silencing in cancer cells. Sci Rep 2018; 8:3748. [PMID: 29491352 PMCID: PMC5830644 DOI: 10.1038/s41598-018-22166-3] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Accepted: 02/19/2018] [Indexed: 01/01/2023] Open
Abstract
Design of an efficient delivery system is a generally recognised bottleneck in translation of siRNA technology into clinic. Despite research efforts, cellular processes that determine efficiency of siRNA silencing achieved by different delivery formulations remain unclear. Here, we investigated the mechanism(s) of cellular internalisation of a model siRNA-loaded liposome system in a correlation to the engagement of delivered siRNA with its target and consequent silencing by adopting siRNA molecular beacon technology. Probing of cellular internalisation pathways by a panel of pharmacological inhibitors indicated that clathrin-mediated (dynamin-dependent) endocytosis, macropinocytosis (dynamine independent), and cell membrane cholesterol dependent process(es) (clathrin and caveolea-independent) all play a role in the siRNA-liposomes internalization. The inhibition of either of these entry routes was, in general, mirrored by a reduction in the level of siRNA engagement with its target mRNA, as well as in a reduction of the target gene silencing. A dramatic increase in siRNA engagement with its target RNA was observed on disruption of endosomal membrane (by chloroquine), accompanied with an increased silencing. The work thus illustrates that employing molecular beacon siRNA technology one can start to assess the target RNA engagement - a stage between initial cellular internalization and final gene silencing of siRNA delivery systems.
Collapse
Affiliation(s)
- Abdullah Alshehri
- Division of Molecular Therapeutics and Formulation, School of Pharmacy, University of Nottingham, Nottingham, NG7 2RD, UK
| | - Anna Grabowska
- Cancer Biology, Division of Cancer and Stem Cells, School of Medicine, Queen's Medical Centre, University of Nottingham, Nottingham, NG7 2RD, UK
| | - Snow Stolnik
- Division of Molecular Therapeutics and Formulation, School of Pharmacy, University of Nottingham, Nottingham, NG7 2RD, UK.
| |
Collapse
|
79
|
Naha PC, Mukherjee SP, Byrne HJ. Toxicology of Engineered Nanoparticles: Focus on Poly(amidoamine) Dendrimers. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:ijerph15020338. [PMID: 29443901 PMCID: PMC5858407 DOI: 10.3390/ijerph15020338] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 02/05/2018] [Accepted: 02/12/2018] [Indexed: 12/14/2022]
Abstract
Engineered nanomaterials are increasingly being developed for paints, sunscreens, cosmetics, industrial lubricants, tyres, semiconductor devices, and also for biomedical applications such as in diagnostics, therapeutics, and contrast agents. As a result, nanomaterials are being manufactured, transported, and used in larger and larger quantities, and potential impacts on environmental and human health have been raised. Poly(amidoamine) (PAMAM) dendrimers are specifically suitable for biomedical applications. They are well-defined nanoscale molecules which contain a 2-carbon ethylenediamine core and primary amine groups at the surface. The systematically variable structural architecture and the large internal free volume make these dendrimers an attractive option for drug delivery and other biomedical applications. Due to the wide range of applications, the Organisation for Economic Co-Operation and Development (OECD) have included them in their list of nanoparticles which require toxicological assessment. Thus, the toxicological impact of these PAMAM dendrimers on human health and the environment is a matter of concern. In this review, the potential toxicological impact of PAMAM dendrimers on human health and environment is assessed, highlighting work to date exploring the toxicological effects of PAMAM dendrimers.
Collapse
Affiliation(s)
- Pratap C Naha
- Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA-19104, USA.
| | - Sourav P Mukherjee
- Molecular Toxicology Unit, Institute of Environmental Medicine (IMM), Karolinska Institutet, 17177 Stockholm, Sweden.
| | - Hugh J Byrne
- FOCAS Research Institute, Dublin Institute of Technology, Kevin Street, Dublin 8, Ireland.
| |
Collapse
|
80
|
Qin L, Niu Y, Wang Y, Chen X. Combination of Phospholipid Complex and Submicron Emulsion Techniques for Improving Oral Bioavailability and Therapeutic Efficacy of Water-Insoluble Drug. Mol Pharm 2018; 15:1238-1247. [DOI: 10.1021/acs.molpharmaceut.7b01061] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Linghao Qin
- Department of Pharmaceutics, School of Pharmacy, Guangdong Pharmaceutical University, No. 280, Waihuandong Road, High Education Mega Center, Guangzhou 510006, P. R. China
| | - Yawei Niu
- Department of Pharmaceutics, School of Pharmacy, Guangdong Pharmaceutical University, No. 280, Waihuandong Road, High Education Mega Center, Guangzhou 510006, P. R. China
- Guangzhou Hanfang Pharmaceutical Co., LTD., No. 134, Jiangnan Dadao Zhong, Guangzhou 510240, P. R. China
| | - Yuemin Wang
- Department of Pharmaceutics, School of Pharmacy, Guangdong Pharmaceutical University, No. 280, Waihuandong Road, High Education Mega Center, Guangzhou 510006, P. R. China
| | - Xiaomei Chen
- Department of Pharmaceutics, School of Pharmacy, Guangdong Pharmaceutical University, No. 280, Waihuandong Road, High Education Mega Center, Guangzhou 510006, P. R. China
| |
Collapse
|
81
|
Liu M, Wu L, Shan W, Cui Y, Huang Y. Iron-mimic peptide converts transferrin from foe to friend for orally targeting insulin delivery. J Mater Chem B 2018; 6:593-601. [PMID: 32254488 DOI: 10.1039/c7tb02450a] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
CRT-modified nanoparticles could effectively avoid the competitive inhibition of endogenous transferrin, and also convert an endogenous substance from foe to friend for active targeting.
Collapse
Affiliation(s)
- Min Liu
- Key laboratory of Drug Targeting and Drug Delivery System (Ministry of Education)
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
- P. R. China
| | - Lei Wu
- Key laboratory of Drug Targeting and Drug Delivery System (Ministry of Education)
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
- P. R. China
| | - Wei Shan
- Key laboratory of Drug Targeting and Drug Delivery System (Ministry of Education)
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
- P. R. China
| | - Yi Cui
- Key laboratory of Drug Targeting and Drug Delivery System (Ministry of Education)
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
- P. R. China
| | - Yuan Huang
- Key laboratory of Drug Targeting and Drug Delivery System (Ministry of Education)
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
- P. R. China
| |
Collapse
|
82
|
Chowdhury HH, Cerqueira SR, Sousa N, Oliveira JM, Reis RL, Zorec R. The uptake, retention and clearance of drug-loaded dendrimer nanoparticles in astrocytes – electrophysiological quantification. Biomater Sci 2018; 6:388-397. [DOI: 10.1039/c7bm00886d] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Endocytosed dendrimer nanoparticles (NPs) are cleared from the astrocytes by an increased rate of transient exocytotic fusion events.
Collapse
Affiliation(s)
- Helena H. Chowdhury
- Laboratory of Neuroendocrinology – Molecular Cell Physiology
- Institute of Pathophysiology
- Faculty of Medicine
- 1000 Ljubljana
- Slovenia
| | - Susana R. Cerqueira
- 3B's Research Group – Biomaterials
- Biodegradables and Biomimetics
- University of Minho
- Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine
- 4805-017 Barco GMR
| | - Nuno Sousa
- Life and Health Sciences Research Institute (ICVS)
- School of Health Sciences
- University of Minho
- 4710-057 Braga
- Portugal
| | - Joaquim M. Oliveira
- 3B's Research Group – Biomaterials
- Biodegradables and Biomimetics
- University of Minho
- Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine
- 4805-017 Barco GMR
| | - Rui L. Reis
- 3B's Research Group – Biomaterials
- Biodegradables and Biomimetics
- University of Minho
- Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine
- 4805-017 Barco GMR
| | - Robert Zorec
- Laboratory of Neuroendocrinology – Molecular Cell Physiology
- Institute of Pathophysiology
- Faculty of Medicine
- 1000 Ljubljana
- Slovenia
| |
Collapse
|
83
|
Xu L, Yang J, Liu Y, Shi L, Wu C, Jin H, Jin X, Su Y, Zhu X. Short-term urea cycle inhibition in rat liver cells induced by polyethylene glycol. Biomater Sci 2018; 6:2896-2904. [DOI: 10.1039/c8bm00668g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
We illuminate the biological effect of PEG on a specific cellular pathway: the urea cycle at a molecular level.
Collapse
Affiliation(s)
- Li Xu
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai
- China
| | - Jiapei Yang
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai
- China
| | - Yumin Liu
- Instrumental Analysis Center
- Shanghai Jiao Tong University
- Shanghai
- China
| | - Leilei Shi
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai
- China
| | - Chenwei Wu
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai
- China
| | - Hua Jin
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai
- China
| | - Xin Jin
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai
- China
| | - Yue Su
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai
- China
| | - Xinyuan Zhu
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai
- China
| |
Collapse
|
84
|
Nance E, Kambhampati SP, Smith ES, Zhang Z, Zhang F, Singh S, Johnston MV, Kannan RM, Blue ME, Kannan S. Dendrimer-mediated delivery of N-acetyl cysteine to microglia in a mouse model of Rett syndrome. J Neuroinflammation 2017; 14:252. [PMID: 29258545 PMCID: PMC5735803 DOI: 10.1186/s12974-017-1004-5] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Accepted: 11/15/2017] [Indexed: 01/06/2023] Open
Abstract
Background Rett syndrome (RTT) is a pervasive developmental disorder that is progressive and has no effective cure. Immune dysregulation, oxidative stress, and excess glutamate in the brain mediated by glial dysfunction have been implicated in the pathogenesis and worsening of symptoms of RTT. In this study, we investigated a new nanotherapeutic approach to target glia for attenuation of brain inflammation/injury both in vitro and in vivo using a Mecp2-null mouse model of Rett syndrome. Methods To determine whether inflammation and immune dysregulation were potential targets for dendrimer-based therapeutics in RTT, we assessed the immune response of primary glial cells from Mecp2-null and wild-type (WT) mice to LPS. Using dendrimers that intrinsically target activated microglia and astrocytes, we studied N-acetyl cysteine (NAC) and dendrimer-conjugated N-acetyl cysteine (D-NAC) effects on inflammatory cytokines by PCR and multiplex assay in WT vs Mecp2-null glia. Since the cysteine-glutamate antiporter (Xc−) is upregulated in Mecp2-null glia when compared to WT, the role of Xc− in the uptake of NAC and l-cysteine into the cell was compared to that of D-NAC using BV2 cells in vitro. We then assessed the ability of D-NAC given systemically twice weekly to Mecp2-null mice to improve behavioral phenotype and lifespan. Results We demonstrated that the mixed glia derived from Mecp2-null mice have an exaggerated inflammatory and oxidative stress response to LPS stimulation when compared to WT glia. Expression of Xc− was significantly upregulated in the Mecp2-null glia when compared to WT and was further increased in the presence of LPS stimulation. Unlike NAC, D-NAC bypasses the Xc− for cell uptake, increasing intracellular GSH levels while preventing extracellular glutamate release and excitotoxicity. Systemically administered dendrimers were localized in microglia in Mecp2-null mice, but not in age-matched WT littermates. Treatment with D-NAC significantly improved behavioral outcomes in Mecp2-null mice, but not survival. Conclusions These results suggest that delivery of drugs using dendrimer nanodevices offers a potential strategy for targeting glia and modulating oxidative stress and immune responses in RTT. Electronic supplementary material The online version of this article (10.1186/s12974-017-1004-5) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Elizabeth Nance
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA.,Center for Nanomedicine, Department of Ophthalmology, Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD, 21231, USA.,Present address: Department of Chemical Engineering, University of Washington, Seattle, WA, 98105, USA
| | - Siva P Kambhampati
- Center for Nanomedicine, Department of Ophthalmology, Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD, 21231, USA
| | - Elizabeth S Smith
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Zhi Zhang
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Fan Zhang
- Center for Nanomedicine, Department of Ophthalmology, Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD, 21231, USA.,Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD, 21218, USA.,Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, MD, 21218, USA
| | - Sarabdeep Singh
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Michael V Johnston
- Hugo W. Moser Research Institute, Kennedy Krieger, Inc., Baltimore, MD, 21205, USA
| | - Rangaramanujam M Kannan
- Center for Nanomedicine, Department of Ophthalmology, Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD, 21231, USA.,Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD, 21218, USA.,Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, MD, 21218, USA.,Hugo W. Moser Research Institute, Kennedy Krieger, Inc., Baltimore, MD, 21205, USA
| | - Mary E Blue
- Hugo W. Moser Research Institute, Kennedy Krieger, Inc., Baltimore, MD, 21205, USA.
| | - Sujatha Kannan
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA. .,Center for Nanomedicine, Department of Ophthalmology, Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD, 21231, USA. .,Hugo W. Moser Research Institute, Kennedy Krieger, Inc., Baltimore, MD, 21205, USA.
| |
Collapse
|
85
|
Sharma R, Kim SY, Sharma A, Zhang Z, Kambhampati SP, Kannan S, Kannan RM. Activated Microglia Targeting Dendrimer-Minocycline Conjugate as Therapeutics for Neuroinflammation. Bioconjug Chem 2017; 28:2874-2886. [PMID: 29028353 PMCID: PMC6023550 DOI: 10.1021/acs.bioconjchem.7b00569] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Brain-related disorders have outmatched cancer and cardiovascular diseases worldwide as the leading cause of morbidity and mortality. The lack of effective therapies and the relatively dry central nervous system (CNS) drug pipeline pose formidable challenge. Superior, targeted delivery of current clinically approved drugs may offer significant potential. Minocycline has shown promise for the treatment of neurological diseases owing to its ability to penetrate the blood-brain barrier (BBB) and potency. Despite its potential in the clinic and in preclinical models, the high doses needed to affect a positive therapeutic response have led to side effects. Targeted delivery of minocycline to the injured site and injured cells in the brain can be highly beneficial. Systemically administered hydroxyl poly(amidoamine) (PAMAM) generation-6 (G6) dendrimers have a longer blood circulation time and have been shown to cross the impaired BBB. We have successfully prepared and characterized the in vitro efficacy and in vivo targeting ability of hydroxyl-G6 PAMAM dendrimer-9-amino-minocycline conjugate (D-mino). Minocycline is a challenging drug to carry out chemical transformations due to its inherent instability. We used a combination of a highly efficient and mild copper catalyzed azide-alkyne click reaction (CuAAC) along with microwave energy to conjugate 9-amino-minocycline (mino) to the dendrimer surface via enzyme responsive linkages. D-mino was further evaluated for anti-inflammatory and antioxidant activity in lipopolysaccharides-activated murine microglial cells. D-mino conjugates enhanced the intracellular availability of the drug due to their rapid uptake, suppressed inflammatory cytokine tumor necrosis factor α (TNF-α) production, and reduced oxidative stress by suppressing nitric oxide production, all significantly better than the free drug. Fluorescently labeled dendrimer conjugate (Cy5-D-mino) was systematically administered (intravenous, 55 mg/kg) on postnatal day 1 to rabbit kits with a clinically relevant phenotype of cerebral palsy. The in vivo imaging study indicates that Cy5-D-mino crossed the impaired blood-brain barrier and co-localized with activated microglia at the periventricular white matter areas, including the corpus callosum and the angle of the lateral ventricle, with significant implications for positive therapeutic outcomes. The enhanced efficacy of D-mino, when combined with the inherent neuroinflammation-targeting capability of the PAMAM dendrimers, may provide new opportunities for targeted drug delivery to treat neurological disorders.
Collapse
Affiliation(s)
- Rishi Sharma
- Center for Nanomedicine, Department of Ophthalmology, Wilmer Eye Institute Johns Hopkins University School of Medicine, Baltimore, Maryland 21231, United States
| | - Soo-Young Kim
- Center for Nanomedicine, Department of Ophthalmology, Wilmer Eye Institute Johns Hopkins University School of Medicine, Baltimore, Maryland 21231, United States
| | - Anjali Sharma
- Center for Nanomedicine, Department of Ophthalmology, Wilmer Eye Institute Johns Hopkins University School of Medicine, Baltimore, Maryland 21231, United States
| | - Zhi Zhang
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, United States
| | - Siva Pramodh Kambhampati
- Center for Nanomedicine, Department of Ophthalmology, Wilmer Eye Institute Johns Hopkins University School of Medicine, Baltimore, Maryland 21231, United States
| | - Sujatha Kannan
- Center for Nanomedicine, Department of Ophthalmology, Wilmer Eye Institute Johns Hopkins University School of Medicine, Baltimore, Maryland 21231, United States
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, United States
- Hugo W. Moser Research Institute at Kennedy Krieger, Inc., Baltimore, Maryland 21205, United States
- Kennedy Krieger Institute, Johns Hopkins University for Cerebral Palsy Research Excellence, Baltimore, Maryland 21218, United States
| | - Rangaramanujam M. Kannan
- Center for Nanomedicine, Department of Ophthalmology, Wilmer Eye Institute Johns Hopkins University School of Medicine, Baltimore, Maryland 21231, United States
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States
- Hugo W. Moser Research Institute at Kennedy Krieger, Inc., Baltimore, Maryland 21205, United States
- Kennedy Krieger Institute, Johns Hopkins University for Cerebral Palsy Research Excellence, Baltimore, Maryland 21218, United States
| |
Collapse
|
86
|
Liu X, Zheng S, Qin Y, Ding W, Tu Y, Chen X, Wu Y, Yanhua L, Cai X. Experimental Evaluation of the Transport Mechanisms of PoIFN-α in Caco-2 Cells. Front Pharmacol 2017; 8:781. [PMID: 29163167 PMCID: PMC5681924 DOI: 10.3389/fphar.2017.00781] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Accepted: 10/16/2017] [Indexed: 11/18/2022] Open
Abstract
For the development of an efficient intestinal delivery system for Porcine interferon-α (PoIFN-α), the understanding of transport mechanisms of which in the intestinal cell is essential. In this study, we investigated the absorption mechanisms of PoIFN-α in intestine cells. Caco-2 cells and fluorescein isothiocyanate-labeled (FITC)-PoIFN-α were used to explore the whole transport process, including endocytosis, intracellular trafficking, exocytosis, and transcytosis. Via various techniques, the transport pathways of PoIFN-α in Caco-2 cells and the mechanisms were clarified. Firstly, the endocytosis of PoIFN-α by Caco-2 cells was time, concentration and temperature dependence. And the lipid raft/caveolae endocytosis was the most likely endocytic pathway for PoIFN-α. Secondly, both Golgi apparatus and lysosome were involved in the intracellular trafficking of PoIFN-α. Thirdly, the treatment of indomethacin resulted in a significant decrease of exocytosis of PoIFN-α, indicating the participation of cyclooxygenase. Finally, to evaluate the efficiency of PoIFN-α transport, the transepithelial electrical resistance (TEER) value was measured to investigate the tight junctional integrity of the cell monolayers. The fluorescence microscope results revealed that the transport of PoIFN-α across the Caco-2 cell monolayers was restricted. In conclusion, this study depicts a probable picture of PoIFN-α transport in Caco-2 cells characterized by non-specificity, partial energy-dependency and low transcytosis.
Collapse
Affiliation(s)
- Xin Liu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin, China
| | - Sidi Zheng
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin, China
| | - Yue Qin
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin, China
| | - Wenya Ding
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin, China
| | - Yabin Tu
- Harbin Veterinary Institute of Chinese Academy of Sciences, Harbin, China
| | - Xingru Chen
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin, China
| | - Yunzhou Wu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin, China
| | - Li Yanhua
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin, China
| | - Xuehui Cai
- Harbin Veterinary Institute of Chinese Academy of Sciences, Harbin, China
| |
Collapse
|
87
|
Yang X, Yang B, He L, Li R, Liao Y, Zhang S, Yang Y, Xu X, Zhang D, Tan H, Li J, Li J. Bioinspired Peptide-Decorated Tannic Acid for in Situ Remineralization of Tooth Enamel: In Vitro and in Vivo Evaluation. ACS Biomater Sci Eng 2017; 3:3553-3562. [PMID: 33445390 DOI: 10.1021/acsbiomaterials.7b00623] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Xiao Yang
- Department
of Biomedical Polymers and Artificial Organs, College of Polymer Science
and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, No. 24, First Section of South Yihuan Road, Chengdu 610065, P. R. China
| | - Bo Yang
- Department
of Biomedical Polymers and Artificial Organs, College of Polymer Science
and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, No. 24, First Section of South Yihuan Road, Chengdu 610065, P. R. China
| | - Libang He
- State
Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, No.14, Third Section of Ren Min Nan Road, Chengdu 610065, P. R. China
| | - Ruiqi Li
- Department
of Biomedical Polymers and Artificial Organs, College of Polymer Science
and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, No. 24, First Section of South Yihuan Road, Chengdu 610065, P. R. China
| | - Yixue Liao
- Department
of Biomedical Polymers and Artificial Organs, College of Polymer Science
and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, No. 24, First Section of South Yihuan Road, Chengdu 610065, P. R. China
| | - Shuhui Zhang
- Department
of Biomedical Polymers and Artificial Organs, College of Polymer Science
and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, No. 24, First Section of South Yihuan Road, Chengdu 610065, P. R. China
| | - Yinxin Yang
- Department
of Biomedical Polymers and Artificial Organs, College of Polymer Science
and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, No. 24, First Section of South Yihuan Road, Chengdu 610065, P. R. China
| | - Xinyuan Xu
- Department
of Biomedical Polymers and Artificial Organs, College of Polymer Science
and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, No. 24, First Section of South Yihuan Road, Chengdu 610065, P. R. China
| | - Dongyue Zhang
- Department
of Biomedical Polymers and Artificial Organs, College of Polymer Science
and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, No. 24, First Section of South Yihuan Road, Chengdu 610065, P. R. China
| | - Hong Tan
- Department
of Biomedical Polymers and Artificial Organs, College of Polymer Science
and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, No. 24, First Section of South Yihuan Road, Chengdu 610065, P. R. China
| | - Jiyao Li
- State
Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, No.14, Third Section of Ren Min Nan Road, Chengdu 610065, P. R. China
| | - Jianshu Li
- Department
of Biomedical Polymers and Artificial Organs, College of Polymer Science
and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, No. 24, First Section of South Yihuan Road, Chengdu 610065, P. R. China
| |
Collapse
|
88
|
Zhao S, Zhu X, Cao C, Sun J, Liu J. Transferrin modified ruthenium nanoparticles with good biocompatibility for photothermal tumor therapy. J Colloid Interface Sci 2017; 511:325-334. [PMID: 29031152 DOI: 10.1016/j.jcis.2017.10.023] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2017] [Revised: 10/01/2017] [Accepted: 10/06/2017] [Indexed: 11/25/2022]
Abstract
In the past two decades, there were various kinds of photothermal agents being synthesised and investigated for their photothermal effect in antitumor applications. However, it is barely reported that the photothermal effect of Ruthenium (Ru) nanoparticles was researched in depth. In this work, we introduced Ru nanoparticles which possess excellent biocompatibility and metabolize easily to the photothermal therapy field. In addition, to improve the cells capacity of absorbing Ru nanoparticles, these Ru nanoparticles were modified by transferrin (Tf-RuNPs). Subsequently, as is expected, the RuNPs exhibit a remarkably integrated and high-quality photothermal property. On the other hand, it is significantly that Tf modification could also strengthen the cells absorptive ability to uptake Ru nanoparticles through endocytosis., Furthermore, both the in vitro cell ablation and in vivo tumor treatment verified that the Tf-RuNPs became ideal photothermal agents for photothermal tumor ablation therapy owing to their low toxicity and high cell destruction capability.
Collapse
Affiliation(s)
- Shuang Zhao
- Department of Chemistry, Jinan University, Guangzhou 510632, China
| | - Xufeng Zhu
- Department of Chemistry, Jinan University, Guangzhou 510632, China
| | - Chengwen Cao
- Department of Chemistry, Jinan University, Guangzhou 510632, China
| | - Jing Sun
- Department of Chemistry, Jinan University, Guangzhou 510632, China
| | - Jie Liu
- Department of Chemistry, Jinan University, Guangzhou 510632, China.
| |
Collapse
|
89
|
Sun Y, Yang Z, Wang C, Yang T, Cai C, Zhao X, Yang L, Ding P. Exploring the role of peptides in polymer-based gene delivery. Acta Biomater 2017; 60:23-37. [PMID: 28778533 DOI: 10.1016/j.actbio.2017.07.043] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Revised: 07/14/2017] [Accepted: 07/31/2017] [Indexed: 12/15/2022]
Abstract
Polymers are widely studied as non-viral gene vectors because of their strong DNA binding ability, capacity to carry large payload, flexibility of chemical modifications, low immunogenicity, and facile processes for manufacturing. However, high cytotoxicity and low transfection efficiency substantially restrict their application in clinical trials. Incorporating functional peptides is a promising approach to address these issues. Peptides demonstrate various functions in polymer-based gene delivery systems, such as targeting to specific cells, breaching membrane barriers, facilitating DNA condensation and release, and lowering cytotoxicity. In this review, we systematically summarize the role of peptides in polymer-based gene delivery, and elaborate how to rationally design polymer-peptide based gene delivery vectors. STATEMENT OF SIGNIFICANCE Polymers are widely studied as non-viral gene vectors, but suffer from high cytotoxicity and low transfection efficiency. Incorporating short, bioactive peptides into polymer-based gene delivery systems can address this issue. Peptides demonstrate various functions in polymer-based gene delivery systems, such as targeting to specific cells, breaching membrane barriers, facilitating DNA condensation and release, and lowering cytotoxicity. In this review, we highlight the peptides' roles in polymer-based gene delivery, and elaborate how to utilize various functional peptides to enhance the transfection efficiency of polymers. The optimized peptide-polymer vectors should be able to alter their structures and functions according to biological microenvironments and utilize inherent intracellular pathways of cells, and consequently overcome the barriers during gene delivery to enhance transfection efficiency.
Collapse
Affiliation(s)
- Yanping Sun
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Zhen Yang
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Chunxi Wang
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Tianzhi Yang
- Department of Basic Pharmaceutical Sciences, School of Pharmacy, Husson University, Bangor, ME, USA
| | - Cuifang Cai
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Xiaoyun Zhao
- Department of Microbiology and Cell Biology, School of Life Science and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Li Yang
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China.
| | - Pingtian Ding
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China.
| |
Collapse
|
90
|
Nanoparticles and targeted drug delivery in cancer therapy. Immunol Lett 2017; 190:64-83. [PMID: 28760499 DOI: 10.1016/j.imlet.2017.07.015] [Citation(s) in RCA: 262] [Impact Index Per Article: 37.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2017] [Revised: 07/04/2017] [Accepted: 07/26/2017] [Indexed: 12/11/2022]
Abstract
Surgery, chemotherapy, radiotherapy, and hormone therapy are the main common anti-tumor therapeutic approaches. However, the non-specific targeting of cancer cells has made these approaches non-effective in the significant number of patients. Non-specific targeting of malignant cells also makes indispensable the application of the higher doses of drugs to reach the tumor region. Therefore, there are two main barriers in the way to reach the tumor area with maximum efficacy. The first, inhibition of drug delivery to healthy non-cancer cells and the second, the direct conduction of drugs into tumor site. Nanoparticles (NPs) are the new identified tools by which we can deliver drugs into tumor cells with minimum drug leakage into normal cells. Conjugation of NPs with ligands of cancer specific tumor biomarkers is a potent therapeutic approach to treat cancer diseases with the high efficacy. It has been shown that conjugation of nanocarriers with molecules such as antibodies and their variable fragments, peptides, nucleic aptamers, vitamins, and carbohydrates can lead to effective targeted drug delivery to cancer cells and thereby cancer attenuation. In this review, we will discuss on the efficacy of the different targeting approaches used for targeted drug delivery to malignant cells by NPs.
Collapse
|
91
|
Rojas-Mancilla E, Oyarce A, Verdugo V, Morales-Verdejo C, Echeverria C, Velásquez F, Chnaiderman J, Valiente-Echeverría F, Ramirez-Tagle R. The [Mo₆Cl 14] 2- Cluster is Biologically Secure and Has Anti-Rotavirus Activity In Vitro. Molecules 2017; 22:E1108. [PMID: 28678175 PMCID: PMC6152029 DOI: 10.3390/molecules22071108] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 06/26/2017] [Accepted: 06/29/2017] [Indexed: 01/15/2023] Open
Abstract
The molybdenum cluster [Mo₆Cl14]2- is a fluorescent component with potential for use in cell labelling and pharmacology. Biological safety and antiviral properties of the cluster are as yet unknown. Here, we show the effect of acute exposition of human cells and red blood cells to the molybdenum cluster and its interaction with proteins and antiviral activity in vitro. We measured cell viability of HepG2 and EA.hy926 cell lines exposed to increasing concentrations of the cluster (0.1 to 250 µM), by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) colorimetric assay. Hemolysis and morphological alterations of red blood cells, obtained from healthy donors, exposed to the cluster (10 to 200 µM) at 37 °C were analyzed. Furthermore, quenching of tryptophan residues of albumin was performed. Finally, plaque formation by rotavirus SA11 in MA104 cells treated with the cluster (100 to 300 µM) were analyzed. We found that all doses of the cluster showed similar cell viability, hemolysis, and morphology values, compared to control. Quenching of tryptophan residues of albumin suggests a protein-cluster complex formation. Finally, the cluster showed antiviral activity at 300 µM. These results indicate that the cluster [Mo₆Cl14]2- could be intravenously administered in animals at therapeutic doses for further in vivo studies and might be studied as an antiviral agent.
Collapse
Affiliation(s)
- Edgardo Rojas-Mancilla
- Departamento de Ciencias Químicas y Biológicas, Universidad Bernardo O Higgins, General Gana 1702, Santiago 8370854, Chile.
| | - Alexis Oyarce
- Escuela de Tecnología Médica, Universidad Bernardo O Higgins, General Gana 1702, Santiago 8370854, Chile.
| | - Viviana Verdugo
- Escuela de Tecnología Médica, Universidad Bernardo O Higgins, General Gana 1702, Santiago 8370854, Chile.
| | - Cesar Morales-Verdejo
- Centro Integrativo de Biología y Química Aplicada, Universidad Bernardo O Higgins, General Gana 1702, Santiago 8370854, Chile.
| | - Cesar Echeverria
- Centro Integrativo de Biología y Química Aplicada, Universidad Bernardo O Higgins, General Gana 1702, Santiago 8370854, Chile.
| | - Felipe Velásquez
- Instituto de Ciencias Biomédicas, Programa de Virología, Universidad de Chile, Avda, Independencia 1027, Independencia 8380453, Chile.
| | - Jonas Chnaiderman
- Instituto de Ciencias Biomédicas, Programa de Virología, Universidad de Chile, Avda, Independencia 1027, Independencia 8380453, Chile.
| | - Fernando Valiente-Echeverría
- Instituto de Ciencias Biomédicas, Programa de Virología, Universidad de Chile, Avda, Independencia 1027, Independencia 8380453, Chile.
| | - Rodrigo Ramirez-Tagle
- Facultad de Ingeniería, Ciencia y Tecnología, Universidad Bernardo O Higgins, Avenida Viel 1497, Santiago 8370993, Chile.
| |
Collapse
|
92
|
Sun Y, Lu J, Yan D, Shen L, Hu H, Chen D. Cellular uptake mechanism and clearance kinetics of fluorescence-labeled glycyrrhetinic acid and glycyrrhetinic acid-modified liposome in hepatocellular carcinoma cells. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2017; 53:46-56. [PMID: 28501784 DOI: 10.1016/j.etap.2017.05.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Revised: 04/12/2017] [Accepted: 05/04/2017] [Indexed: 06/07/2023]
Abstract
Glycyrrhetinic acid (GA) is a natural pentacyclic triterpene derivative that exerts significant effects in the suppression of liver cancer. The receptors of GA on liver cells and hepatocellular carcinoma (HCC) cells have drawn broad attention. The effects of GA might depend on its transport into and out of cells. However, the question has not been previously addressed despite its obvious and fundamental importance. In this paper, GA and GA-modified liposome (GA-Lip) were labeled with fluorescein isothiocyanate (FITC) or coumarin 6 (Cou6) using chemical or pharmaceutical techniques. The transport courses of FITC-GA and GA-Cou6-Lip were studied in HepG2 cells in vitro. We found that the fluorescence labeled GA and GA-Lip uptake and clearance were time-dependent. FITC-GA uptake involved passive diffusion and active transport, and the receptors were in the cytomembrane proteins. GA-Cou6-Lip uptake was mediated by caveolae-dependent endocytosis. In addition, FITC-GA and GA-Cou6-Lip clearance of the HCC cells fitted exponential decay and second-order processes, respectively. These findings provide new insights into the anti-HCC actions of GA.
Collapse
Affiliation(s)
- Yuqi Sun
- School of Pharmacy, Jinzhou Medical University, Jinzhou, PR China; School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, PR China
| | - Jinghua Lu
- School of Pharmacy, Jinzhou Medical University, Jinzhou, PR China
| | - Dongxue Yan
- School of Pharmacy, Jinzhou Medical University, Jinzhou, PR China
| | - Liping Shen
- School of Pharmacy, Jinzhou Medical University, Jinzhou, PR China
| | - Haiyang Hu
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, PR China
| | - Dawei Chen
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, PR China.
| |
Collapse
|
93
|
Nemeth CL, Drummond GT, Mishra MK, Zhang F, Carr P, Garcia MS, Doman S, Fatemi A, Johnston MV, Kannan RM, Kannan S, Wilson MA. Uptake of dendrimer-drug by different cell types in the hippocampus after hypoxic-ischemic insult in neonatal mice: Effects of injury, microglial activation and hypothermia. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2017; 13:2359-2369. [PMID: 28669854 DOI: 10.1016/j.nano.2017.06.014] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Revised: 05/15/2017] [Accepted: 06/22/2017] [Indexed: 12/13/2022]
Abstract
Perinatal hypoxic-ischemic encephalopathy (HIE) can result in neurodevelopmental disability, including cerebral palsy. The only treatment, hypothermia, provides incomplete neuroprotection. Hydroxyl polyamidoamine (PAMAM) dendrimers are being explored for targeted delivery of therapy for HIE. Understanding the biodistribution of dendrimer-conjugated drugs into microglia, neurons and astrocytes after brain injury is essential for optimizing drug delivery. We conjugated N-acetyl-L-cysteine to Cy5-labeled PAMAM dendrimer (Cy5-D-NAC) and used a mouse model of perinatal HIE to study effects of timing of administration, hypothermia, brain injury, and microglial activation on uptake. Dendrimer conjugation delivered therapy most effectively to activated microglia but also targeted some astrocytes and injured neurons. Cy5-D-NAC uptake was correlated with brain injury in all cell types and with activated morphology in microglia. Uptake was not inhibited by hypothermia, except in CD68+ microglia. Thus, dendrimer-conjugated drug delivery can target microglia, astrocytes and neurons and can be used in combination with hypothermia for treatment of HIE.
Collapse
Affiliation(s)
- Christina L Nemeth
- Hugo W. Moser Research Institute at Kennedy Krieger, 707 N Broadway, Baltimore, MD 21205, USA; Department of Neurology, The Johns Hopkins University School of Medicine, 1800 Orleans St., Baltimore, MD 21287, USA
| | - Gabrielle T Drummond
- Hugo W. Moser Research Institute at Kennedy Krieger, 707 N Broadway, Baltimore, MD 21205, USA
| | - Manoj K Mishra
- Center for Nanomedicine at the Wilmer Eye Institute, The Johns Hopkins University School of Medicine, 400 N Broadway, Baltimore, MD 21287, USA
| | - Fan Zhang
- Center for Nanomedicine at the Wilmer Eye Institute, The Johns Hopkins University School of Medicine, 400 N Broadway, Baltimore, MD 21287, USA
| | - Patrice Carr
- Hugo W. Moser Research Institute at Kennedy Krieger, 707 N Broadway, Baltimore, MD 21205, USA
| | - Maxine S Garcia
- Hugo W. Moser Research Institute at Kennedy Krieger, 707 N Broadway, Baltimore, MD 21205, USA
| | - Sydney Doman
- Hugo W. Moser Research Institute at Kennedy Krieger, 707 N Broadway, Baltimore, MD 21205, USA
| | - Ali Fatemi
- Hugo W. Moser Research Institute at Kennedy Krieger, 707 N Broadway, Baltimore, MD 21205, USA; Department of Neurology, The Johns Hopkins University School of Medicine, 1800 Orleans St., Baltimore, MD 21287, USA
| | - Michael V Johnston
- Hugo W. Moser Research Institute at Kennedy Krieger, 707 N Broadway, Baltimore, MD 21205, USA; Department of Neurology, The Johns Hopkins University School of Medicine, 1800 Orleans St., Baltimore, MD 21287, USA
| | - Rangaramanujam M Kannan
- Hugo W. Moser Research Institute at Kennedy Krieger, 707 N Broadway, Baltimore, MD 21205, USA; Center for Nanomedicine at the Wilmer Eye Institute, The Johns Hopkins University School of Medicine, 400 N Broadway, Baltimore, MD 21287, USA
| | - Sujatha Kannan
- Hugo W. Moser Research Institute at Kennedy Krieger, 707 N Broadway, Baltimore, MD 21205, USA; Anesthesiology and Critical Care Medicine, The Johns Hopkins University School of Medicine, The Charlotte R. Bloomberg Children's Center, 1800 Orleans Street, Suite 6318D, Baltimore, MD 21287, USA.
| | - Mary Ann Wilson
- Hugo W. Moser Research Institute at Kennedy Krieger, 707 N Broadway, Baltimore, MD 21205, USA; Department of Neurology, The Johns Hopkins University School of Medicine, 1800 Orleans St., Baltimore, MD 21287, USA; Department of Neuroscience, The Johns Hopkins University School of Medicine, 725 N. Wolfe St., Baltimore, MD 21205, USA.
| |
Collapse
|
94
|
Perspectives on dendritic architectures and their biological applications: From core to cell. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2017; 173:61-83. [PMID: 28564631 DOI: 10.1016/j.jphotobiol.2017.05.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Revised: 05/15/2017] [Accepted: 05/18/2017] [Indexed: 12/24/2022]
Abstract
The challenges of medicine today include the increasing stipulation for sensitive and effective systems that can improve the pathological responses with a simultaneous reduction in accumulation and drug side effects. The demand can be fulfilled through the advancements in nanomedicine that includes nanostructures and nanodevices for diagnosing, treating, and prevention of various diseases. In this respect, the nanoscience provides various novel techniques with carriers such as micelles, dendrimers, particles and vesicles for the transportation of active moieties. Further, an efficient way to improve these systems is through stimuli a responsive system that utilizes supramolecular hyperbranched structures to meet the above criteria. The stimuli-responsive dendritic architectures exhibit spatial, temporal, convenient, effective, safety and controlled drug release in response to specific trigger through electrostatic interactions plus π stacking. The stimuli-responsive systems are capable of sequestering the drug molecules underneath a predefined set of conditions and discharge them in a different environment through either exogenous or endogenous stimulus. The incorporation of photoresponsive moieties at various components of dendrimer such as core, branches or at the peripheral end exaggerates its significance in various allied fields of nanotechnology which includes sensors, photoswitch, electronic widgets and in drug delivery systems. This is due to the light instigated geometrical modifications at the core or at the surface molecules which generates huge conformational changes throughout the hyperbranched structure. Further, numerous synthetic methodologies have been investigated for utilization of dendrimers in therapeutic drug delivery and its applicability towards stimuli responsive systems such as photo-instigated, thermal-instigated, and pH-instigated hyperbranched structures and their advancement in the field of nanomedicine. This paper highlights the fascinating theoretical advances and principal mechanisms of dendrimer synthesis and their ability to capture light that strengthens its applicability from radiant energy to medical photonics.
Collapse
|
95
|
Yabbarov NG, Nikolskaya ED, Zhunina OA, Kondrasheva IG, Zamulaeva IA, Severin ES. Polyamidoamine dendrimers with different surface charge as carriers in anticancer drug delivery. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2017. [DOI: 10.1134/s1068162017020182] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
96
|
Zhao D, Wu J, Li C, Zhang H, Li Z, Luan Y. Precise ratiometric loading of PTX and DOX based on redox-sensitive mixed micelles for cancer therapy. Colloids Surf B Biointerfaces 2017; 155:51-60. [PMID: 28407531 DOI: 10.1016/j.colsurfb.2017.03.056] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Revised: 03/30/2017] [Accepted: 03/31/2017] [Indexed: 10/19/2022]
Abstract
PTX and DOX have different anticancer mechanisms. The combination of the two anticancer drugs could synergically enhance their anticancer effect, but simultaneously accompanied by severe side effects. In the present study, we constructed a mixed micelle system based on redox-sensitive mPEG-SS-PTX and mPEG-SS-DOX conjugate. The drug delivery system has a fixed and high drug loading content of 24.2% (PTX∼14.8% and DOX∼9.4%) with a precise ratio of PTX and DOX to realize the synchronized and controlled release. The mixed micelle has an average size of 93.3nm with a narrow distribution, suitable for passive targeting to tumor tissues by the EPR effect. In vitro release profile and in vitro anticancer results show the mixed micelles have obvious redox-sensitive release properties in reducing environment and have a significant cytotoxicity to A549 and B16 cells. Importantly, in vivo study shows the mixed micelles have no obvious side effect on mice compared to free PTX/DOX samples during the treatment. Therefore, the constructed redox-sensitive mixed micelle is a promising drug delivery system for cancer therapy.
Collapse
Affiliation(s)
- Dujuan Zhao
- School of Pharmaceutical Science, Shandong University,44 West Wenhua Road, Jinan, Shandong Province, 250012, PR China
| | - Jilian Wu
- School of Pharmaceutical Science, Shandong University,44 West Wenhua Road, Jinan, Shandong Province, 250012, PR China
| | - Chuanxiang Li
- People's Hospital of Shouguang,1233 Jiankang Road, Weifang, PR China
| | - Huiyuan Zhang
- School of Pharmaceutical Science, Shandong University,44 West Wenhua Road, Jinan, Shandong Province, 250012, PR China
| | - Zhonghao Li
- Key Lab of Colloid & Interface Chemistry, Shandong University, Ministry of Education, 250100, PR China
| | - Yuxia Luan
- School of Pharmaceutical Science, Shandong University,44 West Wenhua Road, Jinan, Shandong Province, 250012, PR China.
| |
Collapse
|
97
|
Zhao S, Ma L, Cao C, Yu Q, Chen L, Liu J. Curcumin-loaded redox response of self-assembled micelles for enhanced antitumor and anti-inflammation efficacy. Int J Nanomedicine 2017; 12:2489-2504. [PMID: 28408820 PMCID: PMC5383081 DOI: 10.2147/ijn.s123190] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
At present, it has become evident that inflammation plays a critical role in tumor growth; meanwhile, chemotherapeutic agents using nanocarriers have been suggested as a promising strategy in cancer treatment. In this study, novel redox-responsive micelles were prepared from monomethoxy-poly(ethylene glycol)-chitosan-S-S-hexadecyl (C16-SS-CS-mPEG). These micelles were able to carry and deliver drugs into tumor cells. To serve as a control, monomethoxy-poly(ethylene glycol)-chitosan-C-C-hexadecyl (C16-CC-CS-mPEG) was developed in a similar fashion to that used to yield C16-CC-CS-mPEG without a redox-responsive disulfide bond. The cellular uptake mechanisms of both micelles were determined. The efficient intracellular drug release from micelles in MCF-7 cells was further confirmed. Results indicated that curcumin (Cur) could rapidly form C16-SS-CS-mPEG@ Cur micelles when exposed to reducing agents and efficaciously enhance intracellular accumulation. The cytotoxicity assay demonstrated that C16-SS-CS-mPEG@Cur exhibited satisfactory cytotoxicity against MCF-7 cells. Anti-inflammation assay results indicated that C16-SS-CS-mPEG@Cur treatment significantly downregulated tumor necrosis factor (TNF-α) expression and showed good anti-inflammatory effects in tumor microenvironment. Most importantly, antitumor effects in vivo showed satisfactory therapeutic effects with C16-SS-CS-mPEG@Cur. Hence, C16-SS-CS-mPEG@Cur micelles can be useful in tumor therapy.
Collapse
Affiliation(s)
- Shuang Zhao
- Department of Chemistry, Jinan University, Guangzhou
| | - Litao Ma
- Department of Chemistry, Jinan University, Guangzhou
| | - Chengwen Cao
- Department of Chemistry, Jinan University, Guangzhou
| | - Qianqian Yu
- Department of Chemistry, Jinan University, Guangzhou
| | - Lanmei Chen
- Department of Chemistry, Jinan University, Guangzhou.,Department of Chemistry, School of Pharmacy, Guangdong Medical University, Zhanjiang, People's Republic of China
| | - Jie Liu
- Department of Chemistry, Jinan University, Guangzhou
| |
Collapse
|
98
|
Cho H, Cho YW, Kang SW, Kwak MK, Huh KM, Bae YH, Kang HC. Tempo-spatial Activation of Sequential Quadruple Stimuli for High Gene Expression of Polymeric Gene Nanocomplexes. Mol Pharm 2017; 14:842-855. [PMID: 28199124 DOI: 10.1021/acs.molpharmaceut.6b01065] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The clinical application of intracellular gene delivery via nanosized carriers is hindered by intracellular multistep barriers that limit high levels of gene expression. To solve these issues, four different intracellular or external stimuli that can efficiently activate a gene carrier, a gene, or a photosensitizer (pheophorbide A [PhA]) were assessed in this study. The designed nanosized polymeric gene complexes were composed of PhA-loaded thiol-degradable polycation (PhA@RPC) and cytomegalovirus (CMV) promoter-equipped pDNA. After cellular internalization of the resulting PhA@RPC/pDNA complexes, the complexes escaped endosomal sequestration, owing to the endosomal pH-induced endosomolytic activity of RPC in PhA@RPC. Subsequently, intracellular thiol-mediated polycation degradation triggered the release of PhA and pDNA from the complexes. Late exposure to light (for example, 12 h post-treatment) activated the released PhA and resulted in the production of reactive oxygen species (ROS). Intracellular ROS successively activated NF-κB, which then reactivated the CMV promoter in the pDNA. These sequential, stimuli-responsive chemical and biological reactions resulted in high gene expression. In particular, the time-point of light exposure was very significant to tune efficient gene expression as well as negligible cytotoxicity: early light treatment induced photochemical internalization but high cytotoxicity, whereas late light treatment influenced the reactivation of silent pDNA via PhA-generated ROS and activation of NF-κB. In conclusion, the quadruple triggers, such as pH, thiol, light, and ROS, successively influenced a gene carrier (RPC), a photosensitizer, and a genetic therapeutic, and the tempo-spatial activation of the designed quadruple stimuli-activatable nanosized gene complexes could be potential in gene delivery applications.
Collapse
Affiliation(s)
- Hana Cho
- Department of Pharmacy and Integrated Research Institute of Pharmaceutical Sciences, College of Pharmacy, The Catholic University of Korea , 43 Jibong-ro, Bucheon-si, Gyeonggi-do 14662, Republic of Korea
| | - Young-Woo Cho
- Next-generation Pharmaceutical Research Center, Korea Institute of Toxicology , 141 Gajeong-ro, Yuseong-gu, Daejeon, 34114, Republic of Korea
| | - Sun-Woong Kang
- Next-generation Pharmaceutical Research Center, Korea Institute of Toxicology , 141 Gajeong-ro, Yuseong-gu, Daejeon, 34114, Republic of Korea
| | - Mi-Kyoung Kwak
- Department of Pharmacy and Integrated Research Institute of Pharmaceutical Sciences, College of Pharmacy, The Catholic University of Korea , 43 Jibong-ro, Bucheon-si, Gyeonggi-do 14662, Republic of Korea
| | - Kang Moo Huh
- Department of Polymer Science and Engineering, Chungnam National University , 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea
| | - You Han Bae
- Department of Pharmaceutics and Pharmaceutical Chemistry, The University of Utah , 30 S 2000 E, Rm 2972, Salt Lake City, Utah 84112, United States.,Utah-Inha Drug Delivery Systems (DDS) and Advanced Therapeutics Research Center , 9 Songdomirae-ro, Yeonsu-gu, Incheon 21988, Republic of Korea
| | - Han Chang Kang
- Department of Pharmacy and Integrated Research Institute of Pharmaceutical Sciences, College of Pharmacy, The Catholic University of Korea , 43 Jibong-ro, Bucheon-si, Gyeonggi-do 14662, Republic of Korea
| |
Collapse
|
99
|
Liu X, Han M, Xu J, Geng S, Zhang Y, Ye X, Gou J, Yin T, He H, Tang X. Asialoglycoprotein receptor-targeted liposomes loaded with a norcantharimide derivative for hepatocyte-selective targeting. Int J Pharm 2017; 520:98-110. [DOI: 10.1016/j.ijpharm.2017.02.010] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Revised: 01/30/2017] [Accepted: 02/02/2017] [Indexed: 12/13/2022]
|
100
|
Dabrzalska M, Janaszewska A, Zablocka M, Mignani S, Majoral JP, Klajnert-Maculewicz B. Complexing Methylene Blue with Phosphorus Dendrimers to Increase Photodynamic Activity. Molecules 2017; 22:E345. [PMID: 28241491 PMCID: PMC6155338 DOI: 10.3390/molecules22030345] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Revised: 02/01/2017] [Accepted: 02/20/2017] [Indexed: 11/20/2022] Open
Abstract
The efficiency of photodynamic therapy is limited mainly due to low selectivity, unfavorable biodistribution of photosensitizers, and long-lasting skin sensitivity to light. However, drug delivery systems based on nanoparticles may overcome the limitations mentioned above. Among others, dendrimers are particularly attractive as carriers, because of their globular architecture and high loading capacity. The goal of the study was to check whether an anionic phosphorus dendrimer is suitable as a carrier of a photosensitizer-methylene blue (MB). As a biological model, basal cell carcinoma cell lines were used. We checked the influence of the MB complexation on its singlet oxygen production ability using a commercial fluorescence probe. Next, cellular uptake, phototoxicity, reactive oxygen species (ROS) generation, and cell death were investigated. The MB-anionic dendrimer complex (MB-1an) was found to generate less singlet oxygen; however, the complex showed higher cellular uptake and phototoxicity against basal cell carcinoma cell lines, which was accompanied with enhanced ROS production. Owing to the obtained results, we conclude that the photodynamic activity of MB complexed with an anionic dendrimer is higher than free MB against basal cell carcinoma cell lines.
Collapse
Affiliation(s)
- Monika Dabrzalska
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland.
| | - Anna Janaszewska
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland.
| | - Maria Zablocka
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland.
| | - Serge Mignani
- Laboratoire de Chimie et de Biochimie Pharmacologiques et Toxicologique, Université Paris Descartes, PRES Sorbonne Paris Cité, CNRS UMR 860, 45 Rue Des Saints Pères, 75006 Paris, France.
| | - Jean Pierre Majoral
- Laboratoire de Chimie de Coordination CNRS, 205 Route de Narbonne, 31077 Toulouse CEDEX 4, France.
- Institut National Polytechnique de Toulouse, Université de Toulouse, UPS, 31077 Toulouse CEDEX 4, France.
| | - Barbara Klajnert-Maculewicz
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland.
- Institut für Polymerforschung Dresden e.V., Hohe Strasse 6, 01069 Dresden, Germany.
| |
Collapse
|