1
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Siddiquee R, Lo V, Johnston CL, Buffier AW, Ball SR, Ciofani JL, Zeng YC, Mahjoub M, Chrzanowski W, Rezvani-Baboli S, Brown L, Pham CLL, Sunde M, Kwan AH. Surface-Induced Hydrophobin Assemblies with Versatile Properties and Distinct Underlying Structures. Biomacromolecules 2023; 24:4783-4797. [PMID: 37747808 DOI: 10.1021/acs.biomac.3c00542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/27/2023]
Abstract
Hydrophobins are remarkable proteins due to their ability to self-assemble into amphipathic coatings that reverse surface wettability. Here, the versatility of the Class I hydrophobins EASΔ15 and DewY in diverse nanosuspension and coating applications is demonstrated. The hydrophobins are shown to coat or emulsify a range of substrates including oil, hydrophobic drugs, and nanodiamonds and alter their solution and surface behavior. Surprisingly, while the coatings confer new properties, only a subset is found to be resistant to hot detergent treatment, a feature previously thought to be characteristic of the functional amyloid form of Class I hydrophobins. These results demonstrate that substrate surface properties can influence the molecular structures and physiochemical properties of hydrophobin and possibly other functional amyloids. Functional amyloid assembly with different substrates and conditions may be analogous to the propagation of different polymorphs of disease-associated amyloid fibrils with distinct structures, stability, and clinical phenotypes. Given that amyloid formation is not required for Class I hydrophobins to serve diverse applications, our findings open up new opportunities for their use in applications requiring a range of chemical and physical properties. In hydrophobin nanotechnological applications where high stability of assemblies is required, simultaneous structural and functional characterization should be carried out. Finally, while results in this study pertain to synthetic substrates, they raise the possibility that at least some members of the pseudo-Class I and Class III hydrophobins, reported to form assemblies with noncanonical properties, may be Class I hydrophobins adopting alternative structures in response to environmental cues.
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Affiliation(s)
- Rezwan Siddiquee
- School of Life and Environmental Sciences and Sydney Nano, The University of Sydney, Sydney, NSW 2006, Australia
| | - Victor Lo
- School of Medical Sciences and Sydney Nano, The University of Sydney, Sydney, NSW 2006, Australia
| | - Caitlin L Johnston
- School of Medical Sciences and Sydney Nano, The University of Sydney, Sydney, NSW 2006, Australia
| | - Aston W Buffier
- School of Life and Environmental Sciences and Sydney Nano, The University of Sydney, Sydney, NSW 2006, Australia
| | - Sarah R Ball
- Formerly at School of Medical Sciences, The University of Sydney, Sydney, NSW 2006, Australia
| | - Jonathan L Ciofani
- School of Medicine, The University of Sydney, Sydney, NSW 2006, Australia
| | - Yi Cheng Zeng
- Formerly at School of Life and Environmental Sciences, The University of Sydney, Sydney, NSW 2006, Australia
| | - Mahiar Mahjoub
- School of Medicine, The University of Sydney, Sydney, NSW 2006, Australia
| | | | | | - Louise Brown
- School of Natural Sciences, Macquarie University, Sydney, NSW 2109, Australia
| | - Chi L L Pham
- Formerly at School of Medical Sciences, The University of Sydney, Sydney, NSW 2006, Australia
| | - Margaret Sunde
- School of Medical Sciences and Sydney Nano, The University of Sydney, Sydney, NSW 2006, Australia
| | - Ann H Kwan
- School of Life and Environmental Sciences and Sydney Nano, The University of Sydney, Sydney, NSW 2006, Australia
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2
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Zhang DX, Tieu T, Esser L, Wojnilowicz M, Lee CH, Cifuentes-Rius A, Thissen H, Voelcker NH. Differential Surface Engineering Generates Core-Shell Porous Silicon Nanoparticles for Controlled and Targeted Delivery of an Anticancer Drug. ACS APPLIED MATERIALS & INTERFACES 2022; 14:54539-54549. [PMID: 36469497 DOI: 10.1021/acsami.2c16370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
An approach to differentially modify the internal surface of porous silicon nanoparticles (pSiNPs) with hydrophobic dodecene and the external surface with antifouling poly-N-(2-hydroxypropyl) acrylamide (polyHPAm) as well as a cell-targeting peptide was developed. Specifically, to generate these core-shell pSiNPs, the interior surface of a porous silicon (pSi) film was hydrosilylated with 1-dodecene, followed by ultrasonication to create pSiNPs. The new external surfaces were modified by silanization with a polymerization initiator, and surface-initiated atom transfer radical polymerization was performed to introduce polyHPAm brushes. Afterward, a fraction of the polymer side chain hydroxyl groups was activated to conjugate cRGDfK─a peptide with a high affinity and selectivity for the ανβ3 integrin receptor that is overexpressed in prostate and melanoma cancers. Finally, camptothecin, a hydrophobic anti-cancer drug, was successfully loaded into the pores. This drug delivery system showed excellent colloidal stability in a cell culture medium, and the in vitro drug release kinetics could be fine-tuned by the combination of internal and external surface modifications. In vitro studies by confocal microscopy and flow cytometry revealed improved cellular association attributed to cRGDfK. Furthermore, the cell viability results showed that the drug-loaded and peptide-functionalized nanoparticles had enhanced cytotoxicity toward a C4-2B prostate carcinoma cell line in both 2D cell culture and a 3D spheroid model.
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Affiliation(s)
- De-Xiang Zhang
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria 3052, Australia
- Commonwealth Scientific and Industrial Research Organisation (CSIRO) Manufacturing, Clayton, Victoria 3168, Australia
| | - Terence Tieu
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria 3052, Australia
- Commonwealth Scientific and Industrial Research Organisation (CSIRO) Manufacturing, Clayton, Victoria 3168, Australia
| | - Lars Esser
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria 3052, Australia
- Commonwealth Scientific and Industrial Research Organisation (CSIRO) Manufacturing, Clayton, Victoria 3168, Australia
| | - Marcin Wojnilowicz
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria 3052, Australia
- Commonwealth Scientific and Industrial Research Organisation (CSIRO) Manufacturing, Clayton, Victoria 3168, Australia
| | - Chieh-Hua Lee
- Department of Biological Science and Technology, China Medical University, Taichung 40402, Taiwan
| | - Anna Cifuentes-Rius
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria 3052, Australia
| | - Helmut Thissen
- Commonwealth Scientific and Industrial Research Organisation (CSIRO) Manufacturing, Clayton, Victoria 3168, Australia
| | - Nicolas H Voelcker
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria 3052, Australia
- Commonwealth Scientific and Industrial Research Organisation (CSIRO) Manufacturing, Clayton, Victoria 3168, Australia
- Melbourne Centre for Nanofabrication, Victorian Node of Australian National Fabrication Facility, Clayton, Victoria 3168, Australia
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3
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Gomes AS, Correia A, Rahikkala A, Mäkilä E, Pinto MM, Sousa E, Salonen J, Saraiva L, Santos HA. Folic acid-mesoporous silicon nanoparticles enhance the anticancer activity of the p73-activating small molecule LEM2. Int J Pharm 2022; 624:121959. [DOI: 10.1016/j.ijpharm.2022.121959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Revised: 06/18/2022] [Accepted: 06/21/2022] [Indexed: 10/17/2022]
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4
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Rao R, Liu X, Li Y, Tan X, Zhou H, Bai X, Yang X, Liu W. Bioinspired zwitterionic polyphosphoester modified porous silicon nanoparticles for efficient oral insulin delivery. Biomater Sci 2021; 9:685-699. [PMID: 33330897 DOI: 10.1039/d0bm01772h] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The intestinal epithelial and mucus barriers on the gastrointestinal tract limit the bioavailability of oral protein or peptide drugs. Therefore, efficient mucus permeability and cellular internalization are required properties for oral delivery systems. To overcome these two obstacles, porous silicon nanoparticles were modified with poly (pyridyl disulfide ethylene phosphate/sulfobetaine) polymers to make P(PyEP-g-SBm)n-AmPSiNPs (m = 0.1, 0.2, 0.3 and n = 10, 20, 30) nanoparticles (NPs). The insulin-loaded P(PyEP-g-SB)-AmPSiNPs showed favorable stability and good biocompatibility in vitro. The zwitterionic dodecyl sulfobetaine (SB) coated nanoparticles improved the mucus permeability. P(PyEP-g-SBm)20 with the optimal conjugated ratio (m = 0.3) of SB units was determined by evaluating the mucus diffusion rate of NPs. The cellular uptake of P(PyEP-g-SB0.3)n-AmPSiNPs (n = 10, 20, 30) was much higher than AmPSiNPs in the presence of inhibitors (N-acetylcysteine solution and sodium chlorate) (p < 0.01) due to the enhanced charge shielding effect of P(PyEP-g-SB) modification. The P(PyEP-g-SB0.3)20-AmPSiNPs showed about 1.4-1.7 fold increase in the apparent permeability of insulin across Caco-2/HT-29-MTX cell monolayers, compared to AmPSiNPs (p < 0.01). Finally, the in vivo study showed that insulin-loaded P(PyEP-g-SB0.3)20-AmPSiNPs generated 20% reduction of the blood glucose level with an 2-fold increase in oral bioavailability. These suggested that zwitterionic polyphosphoester modified porous silicon nanoparticles, which were of enhanced mucus permeability and cellular internalization, represent a promising carrier for oral delivery of peptide and protein.
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Affiliation(s)
- Rong Rao
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, PR China.
| | - Xuhan Liu
- Department of Chemical Engineering, South Kensington Campus, Imperial College London, London, UK
| | - Yinghuan Li
- College of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, PR China
| | - Xi Tan
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, PR China.
| | - Hong Zhou
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, PR China.
| | - Xicheng Bai
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, PR China.
| | - Xiangliang Yang
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, PR China. and National Engineering Research Center for Nanomedicine, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Wei Liu
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, PR China. and National Engineering Research Center for Nanomedicine, Huazhong University of Science and Technology, Wuhan 430074, PR China
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5
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Zhang DX, Esser L, Vasani RB, Thissen H, Voelcker NH. Porous silicon nanomaterials: recent advances in surface engineering for controlled drug-delivery applications. Nanomedicine (Lond) 2020; 14:3213-3230. [PMID: 31855121 DOI: 10.2217/nnm-2019-0167] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Porous silicon (pSi) nanomaterials are increasingly attractive for biomedical applications due to their promising properties such as simple and feasible fabrication procedures, tunable morphology, versatile surface modification routes, biocompatibility and biodegradability. This review focuses on recent advances in surface modification of pSi for controlled drug delivery applications. A range of functionalization strategies and fabrication methods for pSi-polymer hybrids are summarized. Surface engineering solutions such as stimuli-responsive polymer grafting, stealth coatings and active targeting modifications are highlighted as examples to demonstrate what can be achieved. Finally, the current status of engineered pSi nanomaterials for in vivo applications is reviewed and future prospects and challenges in drug-delivery applications are discussed.
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Affiliation(s)
- De-Xiang Zhang
- Drug Delivery, Disposition & Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria, 3052, Australia.,Commonwealth Scientific & Industrial Research Organisation (CSIRO), Manufacturing, Clayton, Victoria, 3168, Australia
| | - Lars Esser
- Commonwealth Scientific & Industrial Research Organisation (CSIRO), Manufacturing, Clayton, Victoria, 3168, Australia
| | - Roshan B Vasani
- Drug Delivery, Disposition & Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria, 3052, Australia
| | - Helmut Thissen
- Commonwealth Scientific & Industrial Research Organisation (CSIRO), Manufacturing, Clayton, Victoria, 3168, Australia
| | - Nicolas H Voelcker
- Drug Delivery, Disposition & Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria, 3052, Australia.,Commonwealth Scientific & Industrial Research Organisation (CSIRO), Manufacturing, Clayton, Victoria, 3168, Australia.,Melbourne Centre for Nanofabrication, Victorian Node of Australian National Fabrication Facility, Clayton, Victoria, 3168, Australia
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6
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Jones ECL, Bimbo LM. Crystallisation Behaviour of Pharmaceutical Compounds Confined within Mesoporous Silicon. Pharmaceutics 2020; 12:E214. [PMID: 32121652 PMCID: PMC7150833 DOI: 10.3390/pharmaceutics12030214] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 02/17/2020] [Accepted: 02/21/2020] [Indexed: 12/20/2022] Open
Abstract
The poor aqueous solubility of new and existing drug compounds represents a significant challenge in pharmaceutical development, with numerous strategies currently being pursued to address this issue. Amorphous solids lack the repeating array of atoms in the structure and present greater free energy than their crystalline counterparts, which in turn enhances the solubility of the compound. The loading of drug compounds into porous materials has been described as a promising approach for the stabilisation of the amorphous state but is dependent on many factors, including pore size and surface chemistry of the substrate material. This review looks at the applications of mesoporous materials in the confinement of pharmaceutical compounds to increase their dissolution rate or modify their release and the influence of varying pore size to crystallise metastable polymorphs. We focus our attention on mesoporous silicon, due to the ability of its surface to be easily modified, enabling it to be stabilised and functionalised for the loading of various drug compounds. The use of neutron and synchrotron X-ray to examine compounds and the mesoporous materials in which they are confined is also discussed, moving away from the conventional analysis methods.
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Affiliation(s)
| | - Luis M. Bimbo
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, 161 Cathedral Street, Glasgow G4 0RE, UK;
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7
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Xia B, Zhang W, Tong H, Li J, Chen Z, Shi J. Multifunctional Chitosan/Porous Silicon@Au Nanocomposite Hydrogels for Long-Term and Repeatedly Localized Combinatorial Therapy of Cancer via a Single Injection. ACS Biomater Sci Eng 2019; 5:1857-1867. [DOI: 10.1021/acsbiomaterials.8b01533] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Bing Xia
- Key Laboratory of Forest Genetics & Biotechnology (Ministry of Education of China), Nanjing Forestry University, Nanjing 210037, P. R. China
- College of Science, Nanjing Forestry University, Nanjing 210037, P. R. China
| | - Weiwei Zhang
- College of Science, Nanjing Forestry University, Nanjing 210037, P. R. China
| | - Haibei Tong
- College of Science, Nanjing Forestry University, Nanjing 210037, P. R. China
| | - Jiachen Li
- College of Science, Nanjing Forestry University, Nanjing 210037, P. R. China
| | - Zhenyu Chen
- Key Laboratory of Forest Genetics & Biotechnology (Ministry of Education of China), Nanjing Forestry University, Nanjing 210037, P. R. China
| | - Jisen Shi
- Key Laboratory of Forest Genetics & Biotechnology (Ministry of Education of China), Nanjing Forestry University, Nanjing 210037, P. R. China
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8
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Martins JP, D'Auria R, Liu D, Fontana F, Ferreira MPA, Correia A, Kemell M, Moslova K, Mäkilä E, Salonen J, Casettari L, Hirvonen J, Sarmento B, Santos HA. Engineered Multifunctional Albumin-Decorated Porous Silicon Nanoparticles for FcRn Translocation of Insulin. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1800462. [PMID: 29855134 DOI: 10.1002/smll.201800462] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Revised: 04/18/2018] [Indexed: 06/08/2023]
Abstract
The last decade has seen remarkable advances in the development of drug delivery systems as alternative to parenteral injection-based delivery of insulin. Neonatal Fc receptor (FcRn)-mediated transcytosis has been recently proposed as a strategy to increase the transport of drugs across the intestinal epithelium. FcRn-targeted nanoparticles (NPs) could hijack the FcRn transcytotic pathway and cross the epithelial cell layer. In this study, a novel nanoparticulate system for insulin delivery based on porous silicon NPs is proposed. After surface conjugation with albumin and loading with insulin, the NPs are encapsulated into a pH-responsive polymeric particle by nanoprecipitation. The developed NP formulation shows controlled size and homogeneous size distribution. Transmission electron microscopy (TEM) images show successful encapsulation of the NPs into pH-sensitive polymeric particles. No insulin release is detected at acidic conditions, but a controlled release profile is observed at intestinal pH. Toxicity studies show high compatibility of the NPs with intestinal cells. In vitro insulin permeation across the intestinal epithelium shows approximately fivefold increase when insulin is loaded into FcRn-targeted NPs. Overall, these FcRn-targeted NPs offer a toolbox in the development of targeted therapies for oral delivery of insulin.
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Affiliation(s)
- João P Martins
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki, FI-00014, Finland
| | - Roberto D'Auria
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki, FI-00014, Finland
- Department of Biomolecular Sciences, School of Pharmacy, University of Urbino, Urbino, (PU), 61029, Italy
| | - Dongfei Liu
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki, FI-00014, Finland
- Helsinki Institute of Life Science (HiLIFE), University of Helsinki, Helsinki, FI-00014, Finland
| | - Flavia Fontana
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki, FI-00014, Finland
| | - Mónica P A Ferreira
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki, FI-00014, Finland
| | - Alexandra Correia
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki, FI-00014, Finland
| | - Marianna Kemell
- Department of Chemistry, University of Helsinki, Helsinki, FI-00014, Finland
| | - Karina Moslova
- Department of Chemistry, University of Helsinki, Helsinki, FI-00014, Finland
| | - Ermei Mäkilä
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki, FI-00014, Finland
- Department of Physics and Astronomy, University of Turku, Turku, FI-20014, Finland
| | - Jarno Salonen
- Department of Physics and Astronomy, University of Turku, Turku, FI-20014, Finland
| | - Luca Casettari
- Department of Biomolecular Sciences, School of Pharmacy, University of Urbino, Urbino, (PU), 61029, Italy
| | - Jouni Hirvonen
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki, FI-00014, Finland
| | - Bruno Sarmento
- i3S - Instituto de Investigação e Inovação em Saúde, University of Porto, Porto, 4200-135, Portugal
- INEB - Instituto de Engenharia Biomédica, University of Porto, Porto, 4200-135, Portugal
- CESPU - Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Gandra, 4585-116, Portugal
| | - Hélder A Santos
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki, FI-00014, Finland
- Helsinki Institute of Life Science (HiLIFE), University of Helsinki, Helsinki, FI-00014, Finland
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9
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Mesoporous Silicon Particles Favor the Induction of Long-Lived Humoral Responses in Mice to a Peptide-Based Vaccine. MATERIALS 2018; 11:ma11071083. [PMID: 29949862 PMCID: PMC6073586 DOI: 10.3390/ma11071083] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/26/2018] [Revised: 06/12/2018] [Accepted: 06/13/2018] [Indexed: 01/28/2023]
Abstract
Vaccinology faces the challenge of developing improved immunization approaches that are able to induce long-term immunity with the desired Th profile according to the pathology. In this context, new vehicles for efficient antigen delivery that exert adjuvant effects play a critical role in addressing this goal. Herein, mesoporous silicon particles (PSiP) were assessed as carriers for a peptide-based vaccine targeting the receptor for advanced glycation end products (RAGE), which is a relevant receptor in Alzheimer´s disease and other diseases. A RAGE peptide was adsorbed onto PSiP (PSiP vaccine) and administered to BALB/c mice, leading to immune responses that were similar in magnitude to those induced by the soluble peptide. However, the response induced by PSiP lasted for a significantly longer period when compared with the behavior of the group immunized with the peptide alone. Therefore, PSiP are proposed as carriers to enhance immune memory, which is critical in vaccination. This study opens interesting perspectives related to the application of PSiP in vaccinology.
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10
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Li W, Liu Z, Fontana F, Ding Y, Liu D, Hirvonen JT, Santos HA. Tailoring Porous Silicon for Biomedical Applications: From Drug Delivery to Cancer Immunotherapy. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1703740. [PMID: 29534311 DOI: 10.1002/adma.201703740] [Citation(s) in RCA: 93] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Revised: 09/16/2017] [Indexed: 05/24/2023]
Abstract
In the past two decades, porous silicon (PSi) has attracted increasing attention for its potential biomedical applications. With its controllable geometry, tunable nanoporous structure, large pore volume/high specific surface area, and versatile surface chemistry, PSi shows significant advantages over conventional drug carriers. Here, an overview of recent progress in the use of PSi in drug delivery and cancer immunotherapy is presented. First, an overview of the fabrication of PSi with various geometric structures is provided, with particular focus on how the unique geometry of PSi facilitates its biomedical applications, especially for drug delivery. Second, surface chemistry and modification of PSi are discussed in relation to the strengthening of its performance in drug delivery and bioimaging. Emerging technologies for engineering PSi-based composites are then summarized. Emerging PSi advances in the context of cancer immunotherapy are also highlighted. Overall, very promising research results encourage further exploration of PSi for biomedical applications, particularly in drug delivery and cancer immunotherapy, and future translation of PSi into clinical applications.
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Affiliation(s)
- Wei Li
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, FI-00014, Helsinki, Finland
| | - Zehua Liu
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, FI-00014, Helsinki, Finland
| | - Flavia Fontana
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, FI-00014, Helsinki, Finland
| | - Yaping Ding
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, FI-00014, Helsinki, Finland
| | - Dongfei Liu
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, FI-00014, Helsinki, Finland
- Helsinki Institute of Life Science (HiLIFE), University of Helsinki, FI-00014, Helsinki, Finland
| | - Jouni T Hirvonen
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, FI-00014, Helsinki, Finland
| | - Hélder A Santos
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, FI-00014, Helsinki, Finland
- Helsinki Institute of Life Science (HiLIFE), University of Helsinki, FI-00014, Helsinki, Finland
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11
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Riikonen J, Xu W, Lehto VP. Mesoporous systems for poorly soluble drugs – recent trends. Int J Pharm 2018; 536:178-186. [DOI: 10.1016/j.ijpharm.2017.11.054] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2017] [Revised: 11/22/2017] [Accepted: 11/23/2017] [Indexed: 11/28/2022]
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12
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McInnes SJP, Santos A, Kumeria T. Porous Silicon Particles for Cancer Therapy and Bioimaging. NANOONCOLOGY 2018. [DOI: 10.1007/978-3-319-89878-0_9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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13
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Blesic M, Dichiarante V, Milani R, Linder M, Metrangolo P. Evaluating the potential of natural surfactants in the petroleum industry: the case of hydrophobins. PURE APPL CHEM 2017. [DOI: 10.1515/pac-2017-0703] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Enhancing oil recovery from currently available reservoirs is a major issue for petroleum companies. Among the possible strategies towards this, chemical flooding through injection of surfactants into the wells seems to be particularly promising, thanks to their ability to reduce oil/water interfacial tension that promotes oil mobilization. Environmental concerns about the use of synthetic surfactants led to a growing interest in their replacement with surfactants of biological origin, such as lipopeptides and glycolipids produced by several microorganisms. Hydrophobins are small amphiphilic proteins produced by filamentous fungi with high surface activity and good emulsification properties, and may represent a novel sustainable tool for this purpose. We report here a thorough study of their stability and emulsifying performance towards a model hydrocarbon mixture, in conditions that mimic those of real oil reservoirs (high salinity and high temperature). Due to the moderate interfacial tension reduction induced in such conditions, the application of hydrophobins in enhanced oil recovery techniques does not appear feasible at the moment, at least in absence of co-surfactants. On the other hand, the obtained results showed the potential of hydrophobins in promoting the formation of a gel-like emulsion ‘barrier’ at the oil/water interface.
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Affiliation(s)
- Marijana Blesic
- Laboratory of Supramolecular and Bio-Nanomaterials (SupraBioNanoLab) , Department of Chemistry, Materials, and Chemical Engineering “Giulio Natta” , Politecnico di Milano , 20131 Milan , Italy
| | - Valentina Dichiarante
- Laboratory of Supramolecular and Bio-Nanomaterials (SupraBioNanoLab) , Department of Chemistry, Materials, and Chemical Engineering “Giulio Natta” , Politecnico di Milano , 20131 Milan , Italy
| | - Roberto Milani
- VTT-Technical Research Centre of Finland , 02150 Espoo , Finland
| | - Markus Linder
- Department of Bioproducts and Biosystems , Aalto University , P.O. Box 16000 , 02150 Espoo , Finland
| | - Pierangelo Metrangolo
- Laboratory of Supramolecular and Bio-Nanomaterials (SupraBioNanoLab) , Department of Chemistry, Materials, and Chemical Engineering “Giulio Natta” , Politecnico di Milano , 20131 Milan , Italy
- VTT-Technical Research Centre of Finland , 02150 Espoo , Finland
- UNITWIN Network GREENOMIcS, Aalto University , 02150 Espoo , Finland
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14
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Kovalainen M, Kamakura R, Riikonen J, Finnilä M, Nissinen T, Rantanen J, Niemelä M, Perämäki P, Mäkinen M, Herzig KH, Lehto VP. Biodegradation of inorganic drug delivery systems in subcutaneous conditions. Eur J Pharm Biopharm 2017; 122:113-125. [PMID: 29056485 DOI: 10.1016/j.ejpb.2017.10.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Revised: 10/16/2017] [Accepted: 10/18/2017] [Indexed: 11/28/2022]
Abstract
Despite extensive efforts to develop delivery systems for oral administration, subcutaneous (s.c.) injection remains the most common way to administer peptide drugs. To limit the number of frequent injections, sustained release systems that are easy to produce, suitable for various drugs, safe and biodegradable are urgently needed. Porous silicon (PSi) has been recognized to be one of the most promising materials for s.c. peptide delivery, but its biodegradation in s.c. tissue has not been studied in vivo, despite extensive in vitro research. In the present study, differently modified PSi microparticles were injected s.c. in mice, after which the morphology of the particles was thoroughly studied with transmission electron microscopy, micro-computed tomography and X-ray diffraction. Furthermore, histopathology of the s.c. tissue was analyzed to evaluate biocompatibility. To the best of our knowledge, this is the first systematic study which reveals the degradation behavior of various PSi materials in vivo. The PSi surface chemistry significantly affected the biodegradation rate of the s.c. injected microparticles. The most hydrophobic PSi microparticles with hydrocarbonized surface showed the lowest biodegradation rate while the hydrophilic microparticles, with oxide surface, degraded the fastest. The results from different empirical methods complemented each other to deduce the biodegradation mechanism of the inorganic delivery system, providing useful information for future development of s.c. carriers.
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Affiliation(s)
- M Kovalainen
- Research Unit of Biomedicine & Biocenter of Oulu, Faculty of Medicine, P.O. Box 5000, FI-90014 University of Oulu, Finland.
| | - R Kamakura
- Research Unit of Biomedicine & Biocenter of Oulu, Faculty of Medicine, P.O. Box 5000, FI-90014 University of Oulu, Finland
| | - J Riikonen
- Department of Applied Physics, Faculty of Science and Forestry, University of Eastern Finland, P.O. Box 1627, 70210 Kuopio, Finland
| | - M Finnilä
- Research Unit of Medical Imaging, Physics and Technology, Faculty of Medicine, P.O. Box 5000, FI-90014 University of Oulu, Finland
| | - T Nissinen
- Department of Applied Physics, Faculty of Science and Forestry, University of Eastern Finland, P.O. Box 1627, 70210 Kuopio, Finland
| | - J Rantanen
- Department of Applied Physics, Faculty of Science and Forestry, University of Eastern Finland, P.O. Box 1627, 70210 Kuopio, Finland
| | - M Niemelä
- Research Unit of Sustainable Chemistry, Faculty of Technology, P.O.Box 3000, FI-90014 University of Oulu, Finland
| | - P Perämäki
- Research Unit of Sustainable Chemistry, Faculty of Technology, P.O.Box 3000, FI-90014 University of Oulu, Finland
| | - M Mäkinen
- Cancer Research and Translational Medicine Research Unit, Faculty of Medicine, P.O. Box 5000, FI-90014 University of Oulu, Finland
| | - K H Herzig
- Research Unit of Biomedicine & Biocenter of Oulu, Faculty of Medicine, P.O. Box 5000, FI-90014 University of Oulu, Finland; Department of Gastroenterology and Metabolism, Poznan University of Medical Sciences, Poznan, Poland; Medical Research Center (MRC) and Oulu University Hospital, Oulu, Finland
| | - V P Lehto
- Department of Applied Physics, Faculty of Science and Forestry, University of Eastern Finland, P.O. Box 1627, 70210 Kuopio, Finland
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15
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Kerdsakundee N, Li W, Martins JP, Liu Z, Zhang F, Kemell M, Correia A, Ding Y, Airavaara M, Hirvonen J, Wiwattanapatapee R, Santos HA. Multifunctional Nanotube-Mucoadhesive Poly(methyl vinyl ether-co-maleic acid)@Hydroxypropyl Methylcellulose Acetate Succinate Composite for Site-Specific Oral Drug Delivery. Adv Healthc Mater 2017; 6. [PMID: 28714596 DOI: 10.1002/adhm.201700629] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 06/19/2017] [Indexed: 11/11/2022]
Abstract
An advanced oral drug delivery system that can effectively deliver drugs with poor oral bioavailability is strongly desirable. Herein, a multifunctional nano-in-micro structured composite is developed by encapsulation of the mucoadhesive poly(methyl vinyl ether-co-maleic acid) modified halloysite nanotubes (HNTs) with the pH-responsive hydroxypropyl methylcellulose acetate succinate by the microfluidics to control the drug release, increase cell-particle interaction, and improve drug absorption. The microparticles show spherical shape, homogeneous particle size distribution (58 ± 1 µm), and pH-responsive dissolution behavior at pH > 6, and they prevent the premature release of curcumin in simulated pH conditions of the stomach and immediately release the curcumin in simulated pH conditions of the small intestine. The surface modification of HNT with mucoadhesive poly(methyl vinyl ether-co-maleic acid) significantly enhances its interactions with the intestinal Caco-2/HT29-MTX cells and the mouse small intestines, and increases the permeability of curcumin across the co-cultured Caco-2/HT29-MTX cell monolayers by about 13 times compared to the free curcumin. Therefore, the developed multifunctional nanotube-mucoadhesive poly(methyl vinyl ether-co-maleic acid)@hydroxypropyl methylcellulose acetate succinate composite is a promising oral drug delivery system for drugs with poor oral bioavailability.
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Affiliation(s)
- Nattha Kerdsakundee
- Drug Research Program, Division of Pharmaceutical Chemistry Technology; Faculty of Pharmacy; University of Helsinki; FI-00014 Helsinki Finland
- Department of Pharmaceutical Technology; Faculty of Pharmaceutical Sciences; Prince of Songkla University; 90110 Hat Yai Thailand
| | - Wei Li
- Drug Research Program, Division of Pharmaceutical Chemistry Technology; Faculty of Pharmacy; University of Helsinki; FI-00014 Helsinki Finland
| | - João Pedro Martins
- Drug Research Program, Division of Pharmaceutical Chemistry Technology; Faculty of Pharmacy; University of Helsinki; FI-00014 Helsinki Finland
| | - Zehua Liu
- Drug Research Program, Division of Pharmaceutical Chemistry Technology; Faculty of Pharmacy; University of Helsinki; FI-00014 Helsinki Finland
| | - Feng Zhang
- Drug Research Program, Division of Pharmaceutical Chemistry Technology; Faculty of Pharmacy; University of Helsinki; FI-00014 Helsinki Finland
| | - Marianna Kemell
- Department of Chemistry; Faculty of Science; University of Helsinki; FI-00014 Helsinki Finland
| | - Alexandra Correia
- Drug Research Program, Division of Pharmaceutical Chemistry Technology; Faculty of Pharmacy; University of Helsinki; FI-00014 Helsinki Finland
| | - Yaping Ding
- Drug Research Program, Division of Pharmaceutical Chemistry Technology; Faculty of Pharmacy; University of Helsinki; FI-00014 Helsinki Finland
| | - Mikko Airavaara
- Institute of Biotechnology; University of Helsinki; FI-00014 Helsinki Finland
| | - Jouni Hirvonen
- Drug Research Program, Division of Pharmaceutical Chemistry Technology; Faculty of Pharmacy; University of Helsinki; FI-00014 Helsinki Finland
| | - Ruedeekorn Wiwattanapatapee
- Department of Pharmaceutical Technology; Faculty of Pharmaceutical Sciences; Prince of Songkla University; 90110 Hat Yai Thailand
| | - Hélder A. Santos
- Drug Research Program, Division of Pharmaceutical Chemistry Technology; Faculty of Pharmacy; University of Helsinki; FI-00014 Helsinki Finland
- Helsinki Institute of Life Science; HiLIFE; University of Helsinki; FI-00014 Helsinki Finland
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16
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Almeida PV, Shahbazi MA, Correia A, Mäkilä E, Kemell M, Salonen J, Hirvonen J, Santos HA. A multifunctional nanocomplex for enhanced cell uptake, endosomal escape and improved cancer therapeutic effect. Nanomedicine (Lond) 2017; 12:1401-1420. [PMID: 28524813 DOI: 10.2217/nnm-2017-0034] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
AIM To evaluate the chemotherapeutic potential of a novel multifunctional nanocomposite encapsulating both porous silicon (PSi) and gold (Au) nanoparticles in a polymeric nanocomplex. MATERIALS & METHODS The nanocomposite was physicochemically characterized and evaluated in vitro for biocompatibility, cellular internalization, endosomolytic properties, cytoplasmatic drug delivery and chemotherapeutic efficacy. RESULTS The nanocomposites were successfully produced and exhibited adequate physicochemical properties and superior in vitro cyto- and hemocompatibilities. The encapsulation of PSi nanoparticles in the nanocomplexes significantly enhanced their cellular internalization and enabled their endosomal escape, resulting in the efficient cytoplasmic delivery of these nanosystems. Sorafenib-loaded nanocomposites showed a potent in vitro antiproliferative effect on MDA-MB-231 breast cancer cells. CONCLUSION The multifunctional nanocomposite herein presented exhibits great potential as a chemotherapeutic nanoplatform.
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Affiliation(s)
- Patrick V Almeida
- Division of Pharmaceutical Chemistry & Technology, Drug Research Program, Faculty of Pharmacy, University of Helsinki, Viikinkaari 5 E (P.O. Box 56), FI-00014 Finland
| | - Mohammad-Ali Shahbazi
- Division of Pharmaceutical Chemistry & Technology, Drug Research Program, Faculty of Pharmacy, University of Helsinki, Viikinkaari 5 E (P.O. Box 56), FI-00014 Finland.,Department of Micro- & Nanotechnology, Technical University of Denmark, 2800 KGs. Lyngby, Denmark
| | - Alexandra Correia
- Division of Pharmaceutical Chemistry & Technology, Drug Research Program, Faculty of Pharmacy, University of Helsinki, Viikinkaari 5 E (P.O. Box 56), FI-00014 Finland
| | - Ermei Mäkilä
- Division of Pharmaceutical Chemistry & Technology, Drug Research Program, Faculty of Pharmacy, University of Helsinki, Viikinkaari 5 E (P.O. Box 56), FI-00014 Finland.,Laboratory of Industrial Physics, Department of Physics & Astronomy, University of Turku, FI-20014 Finland
| | - Marianna Kemell
- Laboratory of Inorganic Chemistry, Department of Chemistry, University of Helsinki, A.I. Virtasen aukio 1 (P.O. Box 55), FI-00014 Finland
| | - Jarno Salonen
- Laboratory of Industrial Physics, Department of Physics & Astronomy, University of Turku, FI-20014 Finland
| | - Jouni Hirvonen
- Division of Pharmaceutical Chemistry & Technology, Drug Research Program, Faculty of Pharmacy, University of Helsinki, Viikinkaari 5 E (P.O. Box 56), FI-00014 Finland
| | - Hélder A Santos
- Division of Pharmaceutical Chemistry & Technology, Drug Research Program, Faculty of Pharmacy, University of Helsinki, Viikinkaari 5 E (P.O. Box 56), FI-00014 Finland.,Helsinki Institute of Life Science, HiLIFE, University of Helsinki, FI-00014Helsinki, Finland
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17
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Kumeria T, McInnes SJP, Maher S, Santos A. Porous silicon for drug delivery applications and theranostics: recent advances, critical review and perspectives. Expert Opin Drug Deliv 2017; 14:1407-1422. [DOI: 10.1080/17425247.2017.1317245] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Tushar Kumeria
- School of Chemical Engineering, The University of Adelaide, Adelaide, Australia
| | - Steven J. P. McInnes
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Future Industries Institute, University of South Australia, Mawson Lakes, Australia
| | - Shaheer Maher
- School of Chemical Engineering, The University of Adelaide, Adelaide, Australia
- Faculty of Pharmacy, Assiut University, Assiut, Egypt
| | - Abel Santos
- School of Chemical Engineering, The University of Adelaide, Adelaide, Australia
- Institute for Photonics and Advanced Sensing (IPAS), The University of Adelaide, Adelaide, Australia
- ARC Centre of Excellence for Nanoscale BioPhotonics (CNBP), The University of Adelaide, Adelaide, Australia
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18
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Photothermal and biodegradable polyaniline/porous silicon hybrid nanocomposites as drug carriers for combined chemo-photothermal therapy of cancer. Acta Biomater 2017; 51:197-208. [PMID: 28069501 DOI: 10.1016/j.actbio.2017.01.015] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2016] [Revised: 12/09/2016] [Accepted: 01/05/2017] [Indexed: 02/08/2023]
Abstract
To develop photothermal and biodegradable nanocarriers for combined chemo-photothermal therapy of cancer, polyaniline/porous silicon hybrid nanocomposites had been successfully fabricated via surface initiated polymerization of aniline onto porous silicon nanoparticles in our experiments. As-prepared polyaniline/porous silicon nanocomposites could be well dispersed in aqueous solution without any extra hydrophilic surface coatings, and showed a robust photothermal effect under near-infrared (NIR) laser irradiation. Especially, after an intravenous injection into mice, these biodegradable porous silicon-based nanocomposites as non-toxic agents could be completely cleared in body. Moreover, these polyaniline/porous silicon nanocomposites as drug carriers also exhibited an efficient loading and dual pH/NIR light-triggered release of doxorubicin hydrochloride (DOX, a model anticancer drug). Most importantly, assisted with NIR laser irradiation, polyaniline/PSiNPs nanocomposites with loading DOX showed a remarkable synergistic anticancer effect combining chemotherapy with photothermal therapy, whether in vitro or in vivo. Therefore, based on biodegradable PSiNPs-based nanocomposites, this combination approach of chemo-photothermal therapy would have enormous potential on clinical cancer treatments in the future. STATEMENT OF SIGNIFICANCE Considering the non-biodegradable nature and potential long-term toxicity concerns of photothermal nanoagents, it is of great interest and importance to develop biodegradable and photothermal nanoparticles with an excellent biocompatibility for their future clinical applications. In our experiments, we fabricated porous silicon-based hybrid nanocomposites via surface initiated polymerization of aniline, which showed an excellent photothermal effect, aqueous dispersibility, biodegradability and biocompatibility. Furthermore, after an efficient loading of DOX molecules, polyaniline/porous silicon nanocomposites exhibited the remarkable synergistic anticancer effect, whether in vitro and in vivo.
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19
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Balasubramanian V, Correia A, Zhang H, Fontana F, Mäkilä E, Salonen J, Hirvonen J, Santos HA. Biomimetic Engineering Using Cancer Cell Membranes for Designing Compartmentalized Nanoreactors with Organelle-Like Functions. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1605375. [PMID: 28112838 DOI: 10.1002/adma.201605375] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Revised: 12/08/2016] [Indexed: 05/18/2023]
Abstract
A new biomimetic nanoreactor design is presented based on cancer cell membrane material in combination with porous silicon nanoparticles. This cellular nanoreactor features a biocompartment enclosed by a cell membrane and readily integrated with cells and supplementing the cellular functions under oxidative stress. The study demonstrates the impact of the nanoreactors on improving cellular functions with a potential to serve as artificial organelles.
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Affiliation(s)
- Vimalkumar Balasubramanian
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, FI, 00014, Helsinki, Finland
| | - Alexandra Correia
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, FI, 00014, Helsinki, Finland
| | - Hongbo Zhang
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, FI, 00014, Helsinki, Finland
- Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA
| | - Flavia Fontana
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, FI, 00014, Helsinki, Finland
| | - Ermei Mäkilä
- Laboratory of Industrial Physics, University of Turku, FI, 20014, Turku, Finland
| | - Jarno Salonen
- Laboratory of Industrial Physics, University of Turku, FI, 20014, Turku, Finland
| | - Jouni Hirvonen
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, FI, 00014, Helsinki, Finland
| | - Hélder A Santos
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, FI, 00014, Helsinki, Finland
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20
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Liu Z, Balasubramanian V, Bhat C, Vahermo M, Mäkilä E, Kemell M, Fontana F, Janoniene A, Petrikaite V, Salonen J, Yli-Kauhaluoma J, Hirvonen J, Zhang H, Santos HA. Quercetin-Based Modified Porous Silicon Nanoparticles for Enhanced Inhibition of Doxorubicin-Resistant Cancer Cells. Adv Healthc Mater 2017; 6. [PMID: 27943644 DOI: 10.1002/adhm.201601009] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Revised: 09/25/2016] [Indexed: 11/11/2022]
Abstract
One of the most challenging obstacles in nanoparticle's surface modification is to achieve the concept that one ligand can accomplish multiple purposes. Upon such consideration, 3-aminopropoxy-linked quercetin (AmQu), a derivative of a natural flavonoid inspired by the structure of dopamine, is designed and subsequently used to modify the surface of thermally hydrocarbonized porous silicon (PSi) nanoparticles. This nanosystem inherits several advanced properties in a single carrier, including promoted anticancer efficiency, multiple drug resistance (MDR) reversing, stimuli-responsive drug release, drug release monitoring, and enhanced particle-cell interactions. The anticancer drug doxorubicin (DOX) is efficiently loaded into this nanosystem and released in a pH-dependent manner. AmQu also effectively quenches the fluorescence of the loaded DOX, thereby allowing the use of the nanosystem for monitoring the intracellular drug release. Furthermore, a synergistic effect with the presence of AmQu is observed in both normal MCF-7 and DOX-resistant MCF-7 breast cancer cells. Due to the similar structure as dopamine, AmQu may facilitate both the interaction and internalization of PSi into the cells. Overall, this PSi-based platform exhibits remarkable superiority in both multifunctionality and anticancer efficiency, making this nanovector a promising system for anti-MDR cancer treatment.
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Affiliation(s)
- Zehua Liu
- Division of Pharmaceutical Chemistry and Technology; Faculty of Pharmacy; University of Helsinki; FI-00014 Helsinki Finland
| | - Vimalkumar Balasubramanian
- Division of Pharmaceutical Chemistry and Technology; Faculty of Pharmacy; University of Helsinki; FI-00014 Helsinki Finland
| | - Chinmay Bhat
- Division of Pharmaceutical Chemistry and Technology; Faculty of Pharmacy; University of Helsinki; FI-00014 Helsinki Finland
| | - Mikko Vahermo
- Division of Pharmaceutical Chemistry and Technology; Faculty of Pharmacy; University of Helsinki; FI-00014 Helsinki Finland
| | - Ermei Mäkilä
- Laboratory of Industrial Physics; Department of Physics; University of Turku; Turku FI-20014 Finland
| | - Marianna Kemell
- Laboratory of Inorganic Chemistry; Department of Chemistry; University of Helsinki; FI-00014 Helsinki Finland
| | - Flavia Fontana
- Division of Pharmaceutical Chemistry and Technology; Faculty of Pharmacy; University of Helsinki; FI-00014 Helsinki Finland
| | - Agne· Janoniene
- Department of Biothermodynamics and Drug Design; Institute of Biotechnology; Vilnius University; LT-10222 Vilnius Lithuania
| | - Vilma Petrikaite
- Department of Biothermodynamics and Drug Design; Institute of Biotechnology; Vilnius University; LT-10222 Vilnius Lithuania
- Department of Drug Chemistry; Faculty of Pharmacy; Lithuanian University of Health Sciences; LT-44307 Kaunas Lithuania
| | - Jarno Salonen
- Laboratory of Industrial Physics; Department of Physics; University of Turku; Turku FI-20014 Finland
| | - Jari Yli-Kauhaluoma
- Division of Pharmaceutical Chemistry and Technology; Faculty of Pharmacy; University of Helsinki; FI-00014 Helsinki Finland
| | - Jouni Hirvonen
- Division of Pharmaceutical Chemistry and Technology; Faculty of Pharmacy; University of Helsinki; FI-00014 Helsinki Finland
| | - Hongbo Zhang
- Division of Pharmaceutical Chemistry and Technology; Faculty of Pharmacy; University of Helsinki; FI-00014 Helsinki Finland
- Harvard John A. Paulson School of Engineering and Applied Sciences; Harvard University; Cambridge MA 02138 USA
- Department of Pharmaceutical Science; Åbo Akademi University; Turku 20520 Finland
| | - Hélder A. Santos
- Division of Pharmaceutical Chemistry and Technology; Faculty of Pharmacy; University of Helsinki; FI-00014 Helsinki Finland
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21
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Yuryev M, Ferreira MPA, Balasubramanian V, Correia AMR, Mäkilä EM, Jokinen V, Andriichuk L, Kemell M, Salonen JJ, Hirvonen JT, Santos HA, Rivera C. Active diffusion of nanoparticles of maternal origin within the embryonic brain. Nanomedicine (Lond) 2016; 11:2471-81. [DOI: 10.2217/nnm-2016-0207] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Aim: To investigate porous silicon (PSi) nanoparticles (NPs) behavior in the embryonic brain. Materials & methods: Fluorescently labeled PSi NPs were injected into the embryonic brains intraventricularly and to the mother intravenously (iv.). Brain histology from different time points up to 3 days was analyzed and live brains imaged with two-photon microscopy. Results: PSi NPs were able to penetrate 80% of the embryonic cortical depth. Particle motility was confirmed in real-time in vivo. PSi NPs were able to penetrate the embryonic cortex after either iv. maternal or intraventricular injection. No developmental of macromorphological changes or increased cell apoptosis was observed. Conclusion: PSi NPs penetrate deep in the brain tissues of embryos after intraventricular injection and after iv. injection to the mother.
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Affiliation(s)
- Mikhail Yuryev
- Neuroscience Center, University of Helsinki, FI-00014 Helsinki, Finland
| | - Mónica PA Ferreira
- Division of Pharmaceutical Chemistry & Technology, Faculty of Pharmacy, University of Helsinki, FI-00014 Helsinki, Finland
| | - Vimalkumar Balasubramanian
- Division of Pharmaceutical Chemistry & Technology, Faculty of Pharmacy, University of Helsinki, FI-00014 Helsinki, Finland
| | - Alexandra MR Correia
- Division of Pharmaceutical Chemistry & Technology, Faculty of Pharmacy, University of Helsinki, FI-00014 Helsinki, Finland
| | - Ermei M Mäkilä
- Laboratory of Industrial Physics, Department of Physics & Astronomy, University of Turku, FI-20014 Turku, Finland
| | - Ville Jokinen
- Aalto University, School of Chemical Technology, FI-02150 Espoo, Finland
| | - Liliia Andriichuk
- Neuroscience Center, University of Helsinki, FI-00014 Helsinki, Finland
| | - Marianna Kemell
- Department of Chemistry, University of Helsinki, PO Box 55, FI-00014 Helsinki, Finland
| | - Jarno J Salonen
- Laboratory of Industrial Physics, Department of Physics & Astronomy, University of Turku, FI-20014 Turku, Finland
| | - Jouni T Hirvonen
- Division of Pharmaceutical Chemistry & Technology, Faculty of Pharmacy, University of Helsinki, FI-00014 Helsinki, Finland
| | - Hélder A Santos
- Division of Pharmaceutical Chemistry & Technology, Faculty of Pharmacy, University of Helsinki, FI-00014 Helsinki, Finland
| | - Claudio Rivera
- Neuroscience Center, University of Helsinki, FI-00014 Helsinki, Finland
- Institut de Neurobiologie de la Méditerranée, Institut National de la Santé et de la Recherche Médicale Unité 901, 13009 Marseille, France Aix-Marseille Université, Unité Mixte de Recherche 901, 13273 Marseille, France
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22
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Stojanovic V, Cunin F, Durand JO, Garcia M, Gary-Bobo M. Potential of porous silicon nanoparticles as an emerging platform for cancer theranostics. J Mater Chem B 2016; 4:7050-7059. [DOI: 10.1039/c6tb01829g] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Currently, nanoscience is a major part of biomedical research, due to material advances that aid the development of new tools and techniques to replace traditional methods. Here we describe the theranostic potential of multifunctional porous silicon nanoparticles to target, image and treat cancer.
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Affiliation(s)
- V. Stojanovic
- Institut des Biomolécules Max Mousseron
- UMR5247CNRS-UM
- 34093 Montpellier Cedex 05
- France
| | - F. Cunin
- Institut Charles Gerhardt Montpellier
- UMR5253CNRS-ENSCM-UM
- Ecole Nationale Supérieure de Chimie Montpellier
- 8 rue de l'Ecole Normale
- 34296 Montpellier
| | - J. O. Durand
- Institut Charles Gerhardt Montpellier
- UMR5253CNRS-ENSCM-UM
- Ecole Nationale Supérieure de Chimie Montpellier
- 8 rue de l'Ecole Normale
- 34296 Montpellier
| | - M. Garcia
- Institut des Biomolécules Max Mousseron
- UMR5247CNRS-UM
- 34093 Montpellier Cedex 05
- France
| | - M. Gary-Bobo
- Institut des Biomolécules Max Mousseron
- UMR5247CNRS-UM
- 34093 Montpellier Cedex 05
- France
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23
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Ye D, Dawson KA, Lynch I. A TEM protocol for quality assurance of in vitro cellular barrier models and its application to the assessment of nanoparticle transport mechanisms across barriers. Analyst 2015; 140:83-97. [PMID: 25303735 DOI: 10.1039/c4an01276c] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report here a protocol to characterise and monitor the quality of in vitro human cellular barrier models using Transmission Electron Microscopy (TEM), which can be applied for transport assays, mechanistic studies and screening of drug/compound (including nanoparticle) penetration across such biological barriers. Data from two examples of biological barriers are given, namely the hCMEC/D3 endothelial blood-brain barrier model, and the Caco-2 intestinal epithelial barrier model, to show the general applicability of the method. Several aspects of this method are applicable to the quality assurance of in vitro barrier models, e.g., assessment of the multi or mono-layer structure of the endothelial cells; identification of any potential "holes" in the barrier that could confound transport assay results; validation of tight junction expression; and determination of the types and amounts of key cellular organelles present in the barrier to account for any significant changes in phenotype that may occur compared to the in vivo situation. The method described here provides a key advantage in that it prevents loss of the filter membrane during monolayer sectioning, thereby preserving critical details associated with the basal cell membrane. Applicability of the protocol for other in vitro biological barriers, such as the blood-foetus, blood-testes, blood-cerebrospinal fluid (CSF) and lung alveolar-capillary barriers is also discussed. Additionally, we demonstrate the use of the method for assessment of nanoparticle transport across cellular barriers and elucidation of transcytosis mechanisms. Sequential events of cellular endocytosis, localisation and transcytosis can be described in detail by TEM imaging, revealing useful sub-cellular details that provide evidence for the mechanism of nanoparticle transport in the hCMEC/D3 blood-brain barrier model and the Caco-2 intestinal epithelial cell model. Potential artefacts resulting from the nanoparticles interacting with the Transwell membranes can also be assessed.
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Affiliation(s)
- Dong Ye
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland.
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24
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Santos HA, Bimbo LM, Peltonen L, Hirvonen J. Inorganic Nanoparticles in Targeted Drug Delivery and Imaging. ADVANCES IN DELIVERY SCIENCE AND TECHNOLOGY 2015. [DOI: 10.1007/978-3-319-11355-5_18] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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25
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Lo VC, Ren Q, Pham CLL, Morris VK, Kwan AH, Sunde M. Fungal Hydrophobin Proteins Produce Self-Assembling Protein Films with Diverse Structure and Chemical Stability. NANOMATERIALS 2014; 4:827-843. [PMID: 28344251 PMCID: PMC5304692 DOI: 10.3390/nano4030827] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Revised: 08/22/2014] [Accepted: 09/05/2014] [Indexed: 11/23/2022]
Abstract
Hydrophobins are small proteins secreted by fungi and which spontaneously assemble into amphipathic layers at hydrophilic-hydrophobic interfaces. We have examined the self-assembly of the Class I hydrophobins EAS∆15 and DewA, the Class II hydrophobin NC2 and an engineered chimeric hydrophobin. These Class I hydrophobins form layers composed of laterally associated fibrils with an underlying amyloid structure. These two Class I hydrophobins, despite showing significant conformational differences in solution, self-assemble to form fibrillar layers with very similar structures and require a hydrophilic-hydrophobic interface to trigger self-assembly. Addition of additives that influence surface tension can be used to manipulate the fine structure of the protein films. The Class II hydrophobin NC2 forms a mesh-like protein network and the engineered chimeric hydrophobin displays two multimeric forms, depending on assembly conditions. When formed on a graphite surface, the fibrillar EAS∆15 layers are resistant to alcohol, acid and basic washes. In contrast, the NC2 Class II monolayers are dissociated by alcohol treatment but are relatively stable towards acid and base washes. The engineered chimeric Class I/II hydrophobin shows increased stability towards alcohol and acid and base washes. Self-assembled hydrophobin films may have extensive applications in biotechnology where biocompatible; amphipathic coatings facilitate the functionalization of nanomaterials.
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Affiliation(s)
- Victor C Lo
- Discipline of Pharmacology, School of Medical Sciences, The University of Sydney, Sydney NSW 2006, Australia.
| | - Qin Ren
- Discipline of Pharmacology, School of Medical Sciences, The University of Sydney, Sydney NSW 2006, Australia.
| | - Chi L L Pham
- Discipline of Pharmacology, School of Medical Sciences, The University of Sydney, Sydney NSW 2006, Australia.
| | - Vanessa K Morris
- Discipline of Pharmacology, School of Medical Sciences, The University of Sydney, Sydney NSW 2006, Australia.
- School of Molecular Bioscience, The University of Sydney, Sydney NSW 2006, Australia.
| | - Ann H Kwan
- School of Molecular Bioscience, The University of Sydney, Sydney NSW 2006, Australia.
| | - Margaret Sunde
- Discipline of Pharmacology, School of Medical Sciences, The University of Sydney, Sydney NSW 2006, Australia.
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Almeida PV, Shahbazi MA, Mäkilä E, Kaasalainen M, Salonen J, Hirvonen J, Santos HA. Amine-modified hyaluronic acid-functionalized porous silicon nanoparticles for targeting breast cancer tumors. NANOSCALE 2014; 6:10377-87. [PMID: 25074521 PMCID: PMC4234906 DOI: 10.1039/c4nr02187h] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Active targeting of nanoparticles to receptor-overexpressing cancer cells has great potential for enhancing the cellular uptake of nanoparticles and for reducing fast clearance of the nanoparticles from the body. Herein, we present a preparation method of a porous silicon (PSi)-based nanodelivery system for breast cancer targeting, by covalently conjugating a synthesized amide-modified hyaluronic acid (HA(+)) derived polymer on the surface of undecylenic acid-modified thermally hydrocarbonized PSi (UnTHCPSi) nanoparticles. The resulting UnTHCPSi-HA(+) nanoparticles showed relatively small size, reduced polydispersibility, high biocompatibility, improved colloidal and human plasma stability, as well as enhanced cellular interactions and internalization. Moreover, we demonstrated that the enhanced cellular association of UnTHCPSi-HA(+) relies on the capability of the conjugated HA(+) to bind and consequently target CD44 receptors expressed on the surface of breast cancer cells, thus making the HA(+)-functionalized UnTHCPSi nanoparticles a suitable and promising nanoplatform for the targeting of CD44-overexpressing breast tumors and for drug delivery.
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Affiliation(s)
- Patrick V Almeida
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, FI-00014 University of Helsinki, Finland.
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Zhang H, Liu D, Shahbazi MA, Mäkilä E, Herranz-Blanco B, Salonen J, Hirvonen J, Santos HA. Fabrication of a multifunctional nano-in-micro drug delivery platform by microfluidic templated encapsulation of porous silicon in polymer matrix. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:4497-503. [PMID: 24737409 DOI: 10.1002/adma.201400953] [Citation(s) in RCA: 99] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Revised: 03/23/2014] [Indexed: 05/22/2023]
Abstract
A multifunctional nano-in-micro drug delivery platform is developed by conjugating the porous silicon nanoparticles with mucoadhesive polymers and subsequent encapsulation into a pH-responsive polymer using microfluidics. The multistage platform shows monodisperse size distribution and pH-responsive payload release, and the released nanoparticles are mucoadhesive. Moreover, this platform is capable of simultaneously loading and releasing multidrugs with distinct properties.
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Affiliation(s)
- Hongbo Zhang
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki, FI-00014, Finland
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Shahbazi MA, Herranz B, Santos HA. Nanostructured porous Si-based nanoparticles for targeted drug delivery. BIOMATTER 2014; 2:296-312. [PMID: 23507894 PMCID: PMC3568114 DOI: 10.4161/biom.22347] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
One of the backbones in nanomedicine is to deliver drugs specifically to unhealthy cells. Drug nanocarriers can cross physiological barriers and access different tissues, which after proper surface biofunctionalization can enhance cell specificity for cancer therapy. Recent developments have highlighted the potential of mesoporous silica (PSiO2) and silicon (PSi) nanoparticles for targeted drug delivery. In this review, we outline and discuss the most recent advances on the applications and developments of cancer therapies by means of PSiO2 and PSi nanomaterials. Bio-engineering and fine tuning of anti-cancer drug vehicles, high flexibility and potential for sophisticated release mechanisms make these nanostructures promising candidates for “smart” cancer therapies. As a result of their physicochemical properties they can be controllably loaded with large amounts of drugs and coupled to homing molecules to facilitate active targeting. The main emphasis of this review will be on the in vitro and in vivo studies.
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Wan Y, Apostolou S, Dronov R, Kuss B, Voelcker NH. Cancer-targeting siRNA delivery from porous silicon nanoparticles. Nanomedicine (Lond) 2014; 9:2309-21. [PMID: 24593001 DOI: 10.2217/nnm.14.12] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
AIMS Porous silicon nanoparticles (pSiNPs) with tunable pore size are biocompatible and biodegradable, suggesting that they are suitable biomaterials as vehicles for drug delivery. Loading of small interfering RNA (siRNA) into the pores of pSiNPs can protect siRNA from degradation as well as improve the cellular uptake. We aimed to deliver MRP1 siRNA loaded into pSiNPs to glioblastoma cells, and to demonstrate downregulation of MRP1 at the mRNA and protein levels. METHODS 50-220 nm pSiNPs with an average pore size of 26 nm were prepared, followed by electrostatic adsorption of siRNA into pores. Oligonucleotide loading and release profiles were investigated; MRP1 mRNA and protein expression, cell viability and cell apoptosis were studied. RESULTS Approximately 7.7 µg of siRNA was loaded per mg of pSiNPs. Cells readily took up nanoparticles after 30 min incubation. siRNA-loaded pSiNPs were able to effectively downregulate target mRNA (~40%) and protein expression (31%), and induced cell apoptosis and necrosis (33%). CONCLUSION siRNA loaded pSiNPs downregulated mRNA and protein expression and induced cell death. This novel siRNA delivery system may pave the way towards developing more effective tumor therapies.
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Affiliation(s)
- Yuan Wan
- Mawson Institute, University of South Australia, Mawson Lakes, Adelaide, SA 5095, Australia
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Santos HA, Mäkilä E, Airaksinen A, Bimbo L, Hirvonen J. Porous silicon nanoparticles for nanomedicine: preparation and biomedical applications. Nanomedicine (Lond) 2014; 9:535-54. [DOI: 10.2217/nnm.13.223] [Citation(s) in RCA: 137] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The research on porous silicon (PSi) materials for biomedical applications has expanded greatly since the early studies of Leigh Canham more than 25 years ago. Currently, PSi nanoparticles are receiving growing attention from the scientific biomedical community. These nanostructured materials have emerged as promising multifunctional and versatile platforms for nanomedicine in drug delivery, diagnostics and therapy. The outstanding properties of PSi, including excellent in vivo biocompatibility and biodegradability, have led to many applications of PSi for delivery of therapeutic agents. In this review, we highlight current advances and recent efforts on PSi nanoparticles regarding the production properties, efficient drug delivery, multidrug delivery, permeation across biological barriers, biosafety and in vivo tracking for biomedical applications. The constant boost on successful preclinical in vivo data reported so far makes this the ‘golden age’ for PSi, which is expected to finally be translated into the clinic in the near future.
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Affiliation(s)
- Hélder A Santos
- Division of Pharmaceutical Chemistry & Technology, Faculty of Pharmacy, University of Helsinki, Helsinki, FI-00014, Finland
| | - Ermei Mäkilä
- Division of Pharmaceutical Chemistry & Technology, Faculty of Pharmacy, University of Helsinki, Helsinki, FI-00014, Finland
- Laboratory of Industrial Physics, Department of Physics & Astronomy, University of Turku, Turku, FI-20014, Finland
| | - Anu J Airaksinen
- Laboratory of Radiochemistry, Department of Chemistry, University of Helsinki, Helsinki, FI-00014, Finland
| | - Luis M Bimbo
- Division of Pharmaceutical Chemistry & Technology, Faculty of Pharmacy, University of Helsinki, Helsinki, FI-00014, Finland
| | - Jouni Hirvonen
- Division of Pharmaceutical Chemistry & Technology, Faculty of Pharmacy, University of Helsinki, Helsinki, FI-00014, Finland
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Ren Q, Kwan AH, Sunde M. Two forms and two faces, multiple states and multiple uses: Properties and applications of the self-assembling fungal hydrophobins. Biopolymers 2013; 100:601-12. [DOI: 10.1002/bip.22259] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2013] [Accepted: 04/08/2013] [Indexed: 01/20/2023]
Affiliation(s)
- Qin Ren
- Discipline of Pharmacology, School of Medical Sciences; University of Sydney; New South Wales 2006 Australia
| | - Ann H. Kwan
- School of Molecular Bioscience; University of Sydney; New South Wales 2006 Australia
| | - Margaret Sunde
- Discipline of Pharmacology, School of Medical Sciences; University of Sydney; New South Wales 2006 Australia
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Zelena K, Takenberg M, Lunkenbein S, Woche SK, Nimtz M, Berger RG. PfaH2: a novel hydrophobin from the ascomycete Paecilomyces farinosus. Biotechnol Appl Biochem 2013; 60:147-54. [PMID: 23600571 DOI: 10.1002/bab.1077] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2012] [Accepted: 11/30/2012] [Indexed: 11/08/2022]
Abstract
The pfah2 gene coding for a novel hydrophobin PfaH2 from the ascomycete Paecilomyces farinosus was identified during sequencing of random clones from a cDNA library. The corresponding protein sequence of PfaH2 deduced from the cDNA comprised 134 amino acids (aa). A 16 aa signal sequence preceded the N-terminus of the mature protein. PfaH2 belonged to the class Ia hydrophobins. The protein was isolated using trifluoroacetic acid extraction and purified via SDS-PAGE and high-performance liquid chromatography. The surface activity of the recently described PfaH1 and of PfaH2 was compared by the determination of contact angles (CAs) on glass slides and Teflon tape, and the CA of distilled water droplets was measured on glass slides coated with hydrophobin PfaH1 or PfaH2. Surprisingly, both hydrophobins adsorbed to hydrophilic surfaces and changed their physicochemical properties to a similar quantitative extent, although little aa sequence homology was found.
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Affiliation(s)
- Katerina Zelena
- Naturwissenschaftliche Fakultät der Leibniz Universität Hannover, Institut für Lebensmittelchemie, Hannover, Germany
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Shahbazi MA, Hamidi M, Mäkilä EM, Zhang H, Almeida PV, Kaasalainen M, Salonen JJ, Hirvonen JT, Santos HA. The mechanisms of surface chemistry effects of mesoporous silicon nanoparticles on immunotoxicity and biocompatibility. Biomaterials 2013; 34:7776-89. [DOI: 10.1016/j.biomaterials.2013.06.052] [Citation(s) in RCA: 119] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2013] [Accepted: 06/26/2013] [Indexed: 01/17/2023]
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Kinnari PJ, Hyvönen MLK, Mäkilä EM, Kaasalainen MH, Rivinoja A, Salonen JJ, Hirvonen JT, Laakkonen PM, Santos HA. Tumour homing peptide-functionalized porous silicon nanovectors for cancer therapy. Biomaterials 2013; 34:9134-41. [PMID: 24008034 DOI: 10.1016/j.biomaterials.2013.08.034] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2013] [Accepted: 08/10/2013] [Indexed: 01/01/2023]
Abstract
Tumour targeting nanoparticles (NPs) have demonstrated great potential for enhancing anticancer drug delivery to tumour sites and for reducing the side effects of chemotherapy. However, many nanoparticulate delivery systems still lack efficient tumour accumulation. In this work, we present a porous silicon (PSi) nanovector functionalized with a tumour-homing peptide, which targets the mammary-derived growth inhibitor (MDGI) expressing cancer cells both in vitro and in vivo, thereby enhancing the accumulation of the NPs in the tumours. We demonstrated that the tumour homing peptide (herein designated as CooP) functionalized thermally hydrocarbonized PSi (THCPSi) NPs homed specifically to the subcutaneous MDGI-expressing xenograft tumours. The THCPSi-CooP NPs were stable in human plasma and their uptake by MDGI-expressing cancer cells measured by confocal microscopy and flow cytometry was significantly increased compared to the non-functionalized THCPSi NPs. After intravenous injections into nude mice bearing MDGI-expressing tumours, effective targeting was detected and THCPSi-CooP NPs showed ~9-fold higher accumulation in the tumour site compared to the control THCPSi NPs. Accumulation of both NPs in the vital organs was negligible.
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Affiliation(s)
- Päivi J Kinnari
- Division of Pharmaceutical Technology, Faculty of Pharmacy, University of Helsinki, FI-00014 Helsinki, Finland
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35
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Bimbo LM, Denisova OV, Mäkilä E, Kaasalainen M, De Brabander JK, Hirvonen J, Salonen J, Kakkola L, Kainov D, Santos HA. Inhibition of influenza A virus infection in vitro by saliphenylhalamide-loaded porous silicon nanoparticles. ACS NANO 2013; 7:6884-6893. [PMID: 23889734 DOI: 10.1021/nn402062f] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Influenza A viruses (IAVs) cause recurrent epidemics in humans, with serious threat of lethal worldwide pandemics. The occurrence of antiviral-resistant virus strains and the emergence of highly pathogenic influenza viruses have triggered an urgent need to develop new anti-IAV treatments. One compound found to inhibit IAV, and other virus infections, is saliphenylhalamide (SaliPhe). SaliPhe targets host vacuolar-ATPase and inhibits acidification of endosomes, a process needed for productive virus infection. The major obstacle for the further development of SaliPhe as antiviral drug has been its poor solubility. Here, we investigated the possibility to increase SaliPhe solubility by loading the compound in thermally hydrocarbonized porous silicon (THCPSi) nanoparticles. SaliPhe-loaded nanoparticles were further investigated for the ability to inhibit influenza A infection in human retinal pigment epithelium and Madin-Darby canine kidney cells, and we show that upon release from THCPSi, SaliPhe inhibited IAV infection in vitro and reduced the amount of progeny virus in IAV-infected cells. Overall, the PSi-based nanosystem exhibited increased dissolution of the investigated anti-IAV drug SaliPhe and displayed excellent in vitro stability, low cytotoxicity, and remarkable reduction of viral load in the absence of organic solvents. This proof-of-principle study indicates that PSi nanoparticles could be used for efficient delivery of antivirals to infected cells.
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Affiliation(s)
- Luis M Bimbo
- Division of Pharmaceutical Technology, Faculty of Pharmacy, University of Helsinki, FI-00014 Finland
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Abstract
Porous silicon (pSi) is a nanostructured carrier system that has received considerable attention over the past 10 years, for use in a wide variety of biomedical applications, including biosensing, biomedical imaging, tissue scaffolds and drug delivery. This interest is due to several key features of pSi, including excellent in vivo biocompatibility, the ease of surface chemistry modification and the control over its 3D porous network structure. With control of these physical parameters pSi has successfully been used for the delivery of a variety of therapeutics, ranging from small-molecule drugs to larger peptide/protein-type therapeutics. In this review, the authors provide a brief overview of pSi fabrication methods, particularly with regard to the need to passivate the highly reactive Si-Hx surface species of native pSi, typically via thermal oxidation, hydrocarbonization or hydrosilylation. This surface modification, in turn, controls both the loading and release of therapeutics. The authors will then report on specific case studies of leading examples on the use of pSi as a therapeutic-delivery system. Specifically, the first reported in vivo study that demonstrated the use of pSi to improve the delivery of a Biopharmaceutical Classification System Class 2 poorly soluble drug (indomethacin), by using thermally oxidized pSi, is discussed, as well as highlighting a study that determined the biodistribution of 18F-radiolabeled thermally hydrocarbonized pSi after oral dosing. The authors also report on the development of composite pSi–poly(D,L-lactide-co-glycolide) microparticles for the controlled delivery of protein therapeutics. Finally, the use of pSi in the delivery of bioactives, such as the successful use of thermally carbonized pSi to deliver Melanotan II, an unspecific agonist for the melanocortin receptors that are involved in controlling fluid uptake is discussed. With a growing body of literature reporting the successful use of pSi to deliver a range of therapeutics, we are entering what may be a golden age for this drug-delivery system, which may finally see the long-held promises finally achieved.
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Co-delivery of a hydrophobic small molecule and a hydrophilic peptide by porous silicon nanoparticles. J Control Release 2013; 170:268-78. [PMID: 23756152 DOI: 10.1016/j.jconrel.2013.05.036] [Citation(s) in RCA: 112] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2013] [Revised: 05/30/2013] [Accepted: 05/31/2013] [Indexed: 01/25/2023]
Abstract
Nanoparticulate drug delivery systems offer remarkable opportunities for clinical treatment. However, there are several challenges when they are employed to deliver multiple cargos/payloads, particularly concerning the synchronous delivery of small molecular weight drugs and relatively larger peptides. Since porous silicon (PSi) nanoparticles (NPs) can easily contain high payloads of drugs with various properties, we evaluated their carrier potential in multi-drug delivery for co-loading of the hydrophobic drug indomethacin and the hydrophilic human peptide YY3-36 (PYY3-36). Sequential loading of these two drugs into the PSi NPs enhanced the drug release rate of each drug and also their amount permeated across Caco-2 and Caco-2/HT29 cell monolayers. Regardless of the loading approach used, dual or single, the drug permeation profiles were in good correlation with their drug release behaviour. Furthermore, the permeation studies indicated the critical role of the mucus intestinal layer and the paracellular resistance in the permeation of the therapeutic compounds across the intestinal wall. Loading with PYY3-36 also greatly improved the cytocompatibility of the PSi NPs. Conformational analysis indicated that the PYY3-36 could still display biological activity after release from the PSi NPs and permeation across the intestinal cell monolayers. These results are the first demonstration of the promising potential of PSi NPs for simultaneous multi-drug delivery of both hydrophobic and hydrophilic compounds.
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Gupta B, Zhu Y, Guan B, Reece PJ, Gooding JJ. Functionalised porous silicon as a biosensor: emphasis on monitoring cells in vivo and in vitro. Analyst 2013; 138:3593-615. [DOI: 10.1039/c3an00081h] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Nanoscopic Agents in a Physiological Environment: The Importance of Understanding Their Characteristics. TOPICS IN MEDICINAL CHEMISTRY 2013. [DOI: 10.1007/7355_2013_36] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Mäkilä E, Bimbo LM, Kaasalainen M, Herranz B, Airaksinen AJ, Heinonen M, Kukk E, Hirvonen J, Santos HA, Salonen J. Amine modification of thermally carbonized porous silicon with silane coupling chemistry. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:14045-54. [PMID: 22967052 DOI: 10.1021/la303091k] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Thermally carbonized porous silicon (TCPSi) microparticles were chemically modified with organofunctional alkoxysilane molecules using a silanization process. Before the silane coupling, the TCPSi surface was activated by immersion in hydrofluoric acid (HF). Instead of regeneration of the silicon hydride species, the HF immersion of silicon carbide structure forms a silanol termination (Si-OH) on the surface required for silanization. Subsequent functionalization with 3-aminopropyltriethoxysilane provides the surface with an amine (-NH(2)) termination, while the SiC-type layer significantly stabilizes the functionalized structure both mechanically and chemically. The presence of terminal amine groups was verified with FTIR, XPS, CHN analysis, and electrophoretic mobility measurements. The overall effects of the silanization to the morphological properties of the initial TCPSi were analyzed and they were found to be very limited, making the treatment effects highly predictable. The maximum obtained number of amine groups on the surface was calculated to be 1.6 groups/nm(2), corresponding to 79% surface coverage. The availability of the amine groups for further biofunctionalization was confirmed by successful biotinylation. The isoelectric point (IEP) of amine-terminated TCPSi was measured to be at pH 7.7, as opposed to pH 2.6 for untreated TCPSi. The effects of the surface amine termination on the cell viability of Caco-2 and HT-29 cells and on the in vitro fenofibrate release profiles were also assessed. The results indicated that the surface modification did not alter the loading of the drug inside the pores and also retained the beneficial enhanced dissolution characteristics similar to TCPSi. Cellular viability studies also showed that the surface modification had only a limited effect on the biocompatibility of the PSi.
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Affiliation(s)
- Ermei Mäkilä
- Laboratory of Industrial Physics, Department of Physics and Astronomy, University of Turku, Turku FI-20014, Finland
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Santos HA, Hirvonen J. Nanostructured porous silicon materials: potential candidates for improving drug delivery. Nanomedicine (Lond) 2012; 7:1281-4. [DOI: 10.2217/nnm.12.106] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Affiliation(s)
- Hélder A Santos
- Division of Pharmaceutical Technology, University of Helsinki, FI-0014, Finland
| | - Jouni Hirvonen
- Division of Pharmaceutical Technology, University of Helsinki, FI-0014, Finland
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