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Aghajanzadeh MS, Imani R, Nazarpak MH, McInnes SJP. Augmented physical, mechanical, and cellular responsiveness of gelatin-aldehyde modified xanthan hydrogel through incorporation of silicon nanoparticles for bone tissue engineering. Int J Biol Macromol 2024; 259:129231. [PMID: 38185310 DOI: 10.1016/j.ijbiomac.2024.129231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 12/20/2023] [Accepted: 01/02/2024] [Indexed: 01/09/2024]
Abstract
Bioactive scaffolds fabricated from a combination of organic and inorganic biomaterials are a promising approach for addressing defects in bone tissue engineering. In the present study, a self-crosslinked nanocomposite hydrogel, composed of gelatin/aldehyde-modified xanthan (Gel-AXG) is successfully developed by varying concentrations of porous silicon nanoparticles (PSiNPs). The effect of PSiNPs incorporation on physical, mechanical, and biological performance of the nanocomposite hydrogel is evaluated. Morphological analysis reveals formation of highly porous 3D microstructures with interconnected pores in all nanocomposite hydrogels. Increased content of PSiNPs results in a lower swelling ratio, reduced porosity and pore size, which in turn impeded media penetration and slowed down the degradation process. In addition, remarkable enhancements in dynamic mechanical properties are observed in Gel-AXG-8%Si (compressive strength: 0.6223 MPa at 90 % strain and compressive modulus: 0.054 MPa), along with improved biomineralization ability via hydroxyapatite formation after immersion in simulated body fluid (SBF). This optimized nanocomposite hydrogel provides a sustained release of Si ions at safe dose levels. Furthermore, in-vitro cytocompatibility studies using MG-63 cells exhibited remarkable performance in terms of cell attachment, proliferation, and ALP activity for Gel-AXG-8%Si. These findings suggest that the prepared nanocomposite hydrogel holds promising potential as a scaffold for bone tissue engineering.
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Affiliation(s)
| | - Rana Imani
- Department of Biomedical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran.
| | - Masoumeh Haghbin Nazarpak
- New Technologies Research Center, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
| | - Steven J P McInnes
- UniSA STEM, Mawson Lakes Campus, University of South Australia, Mawson Lakes, South Australia, Australia
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2
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Um H, Kang RH, Kim D. Iron-silicate-coated porous silicon nanoparticles for in situ ROS self-generation. Colloids Surf B Biointerfaces 2023; 225:113273. [PMID: 36965332 DOI: 10.1016/j.colsurfb.2023.113273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 03/09/2023] [Accepted: 03/17/2023] [Indexed: 03/27/2023]
Abstract
Porous silicon nanoparticles (pSiNPs) have gained attention from drug delivery systems (DDS) due to their biocompatibility, high drug-loading efficiency, and facile surface modification. To date, many surface chemistries of pSiNPs have been developed to maximize the merits and overcome the drawbacks of pSiNPs. In this work, we newly disclosed a formulation, iron-silicate-coated pSiNPs (Fe-pSiNPs-NCS), using the surface modification method with iron-silicate and 3-isothiocyanatopropyltriethoxysilane (TEPITC). Fe-pSiNPs-NCS demonstrated effective reactive-oxygen species (ROS) self-generation ability via a Fenton-like reaction of iron-silicate and in situ hydrogen peroxide (H2O2) generation of TEPITC on the surface of pSiNPs, resulting in excellent anticancer effect in U87MG cancer cells. Moreover, we confirmed that Fe-pSiNPs-NCS could be used as a drug delivery carrier as it was proven that anticancer drugs (doxorubicin, SN-38) were loaded into Fe-pSiNPs-NCS with high-loading efficiency. These findings could offer efficient strategies for developing nanotherapeutics in biomedical fields.
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Affiliation(s)
- Hyeji Um
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul 02447, the Republic of Korea
| | - Rae Hyung Kang
- Pharmaceutical Sciences Division, School of Pharmacy, University of Wisconsin-Madison, 777 Highland Avenue, Madison, WI 53705, USA
| | - Dokyoung Kim
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul 02447, the Republic of Korea; Medical Research Center for Bioreaction to Reactive Oxygen Species and Biomedical Science Institute, Kyung Hee University, Seoul 02447, the Republic of Korea; Department of Anatomy and Neurobiology, College of Medicine, Kyung Hee University, Seoul 02447, the Republic of Korea; Center for Converging Humanities, Kyung Hee University, Seoul 02447, the Republic of Korea; KHU-KIST Department of Converging Science and Technology, Kyung Hee University, Seoul 02447, the Republic of Korea; UC San Diego Materials Research Science and Engineering Center, 9500 Gilman Drive, La Jolla, CA 92093, USA.
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3
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Kim J, Um H, Kim NH, Kim D. Potential Alzheimer's disease therapeutic nano-platform: Discovery of amyloid-beta plaque disaggregating agent and brain-targeted delivery system using porous silicon nanoparticles. Bioact Mater 2023; 24:497-506. [PMID: 36685808 PMCID: PMC9841037 DOI: 10.1016/j.bioactmat.2023.01.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 12/04/2022] [Accepted: 01/05/2023] [Indexed: 01/11/2023] Open
Abstract
There has been a lot of basic and clinical research on Alzheimer's disease (AD) over the last 100 years, but its mechanisms and treatments have not been fully clarified. Despite some controversies, the amyloid-beta hypothesis is one of the most widely accepted causes of AD. In this study, we disclose a new amyloid-beta plaque disaggregating agent and an AD brain-targeted delivery system using porous silicon nanoparticles (pSiNPs) as a therapeutic nano-platform to overcome AD. We hypothesized that the negatively charged sulfonic acid functional group could disaggregate plaques and construct a chemical library. As a result of the in vitro assay of amyloid plaques and library screening, we confirmed that 6-amino-2-naphthalenesulfonic acid (ANA) showed the highest efficacy for plaque disaggregation as a hit compound. To confirm the targeted delivery of ANA to the AD brain, a nano-platform was created using porous silicon nanoparticles (pSiNPs) with ANA loaded into the pore of pSiNPs and biotin-polyethylene glycol (PEG) surface functionalization. The resulting nano-formulation, named Biotin-CaCl2-ANA-pSiNPs (BCAP), delivered a large amount of ANA to the AD brain and ameliorated memory impairment of the AD mouse model through the disaggregation of amyloid plaques in the brain. This study presents a new bioactive small molecule for amyloid plaque disaggregation and its promising therapeutic nano-platform for AD brain-targeted delivery.
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Affiliation(s)
- Jaehoon Kim
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Hyeji Um
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Na Hee Kim
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Dokyoung Kim
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul, 02447, Republic of Korea,Medical Research Center for Bioreaction to Reactive Oxygen Species and Biomedical Science Institute, Kyung Hee University, Seoul, 02447, Republic of Korea,Department of Anatomy and Neurobiology, College of Medicine, Kyung Hee University, Seoul, 02447, Republic of Korea,Center for Converging Humanities, Kyung Hee University, Seoul, 02447, Republic of Korea,KHU-KIST Department of Converging Science and Technology, Kyung Hee University, Seoul, 02447, Republic of Korea,UC San Diego Materials Research Science and Engineering Center, 9500 Gilman Drive La Jolla, CA, 92093, USA,Corresponding author. Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul, 02447, Republic of Korea.
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Osminkina LA, Agafilushkina SN, Kropotkina EA, Saushkin NY, Bozhev IV, Abramchuk SS, Samsonova JV, Gambaryan AS. Antiviral adsorption activity of porous silicon nanoparticles against different pathogenic human viruses. Bioact Mater 2022; 7:39-46. [PMID: 34179568 PMCID: PMC8215515 DOI: 10.1016/j.bioactmat.2021.06.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 05/15/2021] [Accepted: 06/02/2021] [Indexed: 12/13/2022] Open
Abstract
New viral infections, due to their rapid spread, lack of effective antiviral drugs and vaccines, kill millions of people every year. The global pandemic SARS-CoV-2 in 2019-2021 has shown that new strains of viruses can widespread very quickly, causing disease and death, with significant socio-economic consequences. Therefore, the search for new methods of combating different pathogenic viruses is an urgent task, and strategies based on nanoparticles are of significant interest. This work demonstrates the antiviral adsorption (virucidal) efficacy of nanoparticles of porous silicon (PSi NPs) against various enveloped and non-enveloped pathogenic human viruses, such as Influenza A virus, Poliovirus, Human immunodeficiency virus, West Nile virus, and Hepatitis virus. PSi NPs sized 60 nm with the average pore diameter of 2 nm and specific surface area of 200 m2/g were obtained by ball-milling of electrochemically-etched microporous silicon films. After interaction with PSi NPs, a strong suppression of the infectious activity of the virus-contaminated fluid was observed, which was manifested in a decrease in the infectious titer of all studied types of viruses by approximately 104 times, and corresponded to an inactivation of 99.99% viruses in vitro. This sorption capacity of PSi NPs is possible due to their microporous structure and huge specific surface area, which ensures efficient capture of virions, as confirmed by ELISA analysis, dynamic light scattering measurements and transmission electron microscopy images. The results obtained indicate the great potential of using PSi NPs as universal viral sorbents and disinfectants for the detection and treatment of viral diseases.
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Affiliation(s)
- Liubov A. Osminkina
- Lomonosov Moscow State University, Physics Department, Leninskie Gory 1, 119991, Moscow, Russian Federation
- Institute for Biological Instrumentation of Russian Academy of Sciences, 142290, Pushchino, Moscow Region, Russian Federation
| | - Svetlana N. Agafilushkina
- Lomonosov Moscow State University, Physics Department, Leninskie Gory 1, 119991, Moscow, Russian Federation
| | - Ekaterina A. Kropotkina
- Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products, Russian Academy of Sciences, 108819, Moscow, Russian Federation
| | - Nikolay Yu Saushkin
- Lomonosov Moscow State University, Physics Department, Leninskie Gory 1, 119991, Moscow, Russian Federation
- Lomonosov Moscow State University, Faculty of Chemistry, Leninskie Gory 1, 119991, Moscow, Russian Federation
| | - Ivan V. Bozhev
- Lomonosov Moscow State University, Physics Department, Leninskie Gory 1, 119991, Moscow, Russian Federation
- Quantum Technology Center, Lomonosov Moscow State University, Physics Department, Leninskie Gory 1, 119991, Moscow, Russian Federation
| | - Sergei S. Abramchuk
- Lomonosov Moscow State University, Physics Department, Leninskie Gory 1, 119991, Moscow, Russian Federation
- A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, Vavilova 28, 119991, Moscow, Russian Federation
| | - Jeanne V. Samsonova
- Lomonosov Moscow State University, Physics Department, Leninskie Gory 1, 119991, Moscow, Russian Federation
- Lomonosov Moscow State University, Faculty of Chemistry, Leninskie Gory 1, 119991, Moscow, Russian Federation
| | - Alexandra S. Gambaryan
- Institute for Biological Instrumentation of Russian Academy of Sciences, 142290, Pushchino, Moscow Region, Russian Federation
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Happonen E, Tamarov K, Martikainen MV, Ketola K, Roponen M, Lehto VP, Xu W. Thermal dose as a universal tool to evaluate nanoparticle-induced photothermal therapy. Int J Pharm 2020; 587:119657. [PMID: 32682960 DOI: 10.1016/j.ijpharm.2020.119657] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 07/12/2020] [Accepted: 07/13/2020] [Indexed: 12/12/2022]
Abstract
Thermal isoeffect dose (TID) is a widely applied concept to evaluate the safety of medical devices that can expose patients to heat. However, it has rarely been used in photothermal therapy (PTT), where nanoparticles are used as light absorbers. Utilizing TID in an appropriate way would make it feasible to compare the results obtained with different light absorbers as well as clarifying their cellular effects. Herein, we apply TID as a definitive parameter to evaluate the outcomes of a nanoparticle-induced PTT in vitro. We show that cell death measured with an ATP-based viability assay and flow cytometry can be correlated with TID if time-temperature data is available. As an experimental model, black porous silicon nanoparticles were studied as photothermal agents to kill HeLa cancer cells. The results indicate that as the critical TID of 70 min is reached, the cells start to undergo apoptosis independently of the way in which the TID was attained: by long heating at low temperatures or by short heating at high temperatures. Overall, TID is proposed as a valid parameter which could be determined in the PTT studies to allow a straightforward comparison of the published results and the elucidation of the cell death mechanisms.
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Affiliation(s)
- Emilia Happonen
- Department of Applied Physics, University of Eastern Finland, 70210 Kuopio, Finland
| | - Konstantin Tamarov
- Department of Applied Physics, University of Eastern Finland, 70210 Kuopio, Finland
| | - Maria-Viola Martikainen
- Department of Environmental and Biological Sciences, University of Eastern Finland, 70210 Kuopio, Finland
| | - Kirsi Ketola
- Institute of Biomedicine, University of Eastern Finland, 70210 Kuopio, Finland
| | - Marjut Roponen
- Department of Environmental and Biological Sciences, University of Eastern Finland, 70210 Kuopio, Finland
| | - Vesa-Pekka Lehto
- Department of Applied Physics, University of Eastern Finland, 70210 Kuopio, Finland
| | - Wujun Xu
- Department of Applied Physics, University of Eastern Finland, 70210 Kuopio, Finland.
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Balasubramanian V, Domanskyi A, Renko JM, Sarparanta M, Wang CF, Correia A, Mäkilä E, Alanen OS, Salonen J, Airaksinen AJ, Tuominen R, Hirvonen J, Airavaara M, Santos HA. Engineered antibody-functionalized porous silicon nanoparticles for therapeutic targeting of pro-survival pathway in endogenous neuroblasts after stroke. Biomaterials 2019; 227:119556. [PMID: 31670035 DOI: 10.1016/j.biomaterials.2019.119556] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 10/04/2019] [Accepted: 10/15/2019] [Indexed: 01/04/2023]
Abstract
Generation of new neurons by utilizing the regenerative potential of adult neural stem cells (NSCs) and neuroblasts is an emerging therapeutic strategy to treat various neurodegenerative diseases, including neuronal loss after stroke. Committed to neuronal lineages, neuroblasts are differentiated from NSCs and have a lower proliferation rate. In stroke the proliferation of the neuroblasts in the neurogenic areas is increased, but the limiting factor for regeneration is the poor survival of migrating neuroblasts. Survival of neuroblasts can be promoted by small molecules; however, new drug delivery methods are needed to specifically target these cells. Herein, to achieve specific targeting, we have engineered biofunctionalized porous silicon nanoparticles (PSi NPs) conjugated with a specific antibody against polysialylated neural cell adhesion molecule (PSA-NCAM). The PSi NPs loaded with a small molecule drug, SC-79, were able to increase the activity of the Akt signaling pathway in doublecortin positive neuroblasts both in cultured cells and in vivo in the rat brain. This study opens up new possibilities to target drug effects to migrating neuroblasts and facilitate differentiation, maturation and survival of developing neurons. The conjugated PSi NPs are a novel tool for future studies to develop new therapeutic strategies aiming at regenerating functional neurocircuitry after stoke.
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Affiliation(s)
- Vimalkumar Balasubramanian
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, FI-00014, Finland.
| | - Andrii Domanskyi
- Institute of Biotechnology, HiLIFE, University of Helsinki, FI-00014, Finland.
| | - Juho-Matti Renko
- Drug Research Program, Division of Pharmacology and Pharmacotherapy, Faculty of Pharmacy, University of Helsinki, FI-00014, Finland
| | - Mirkka Sarparanta
- Department of Chemistry, Radiochemistry, University of Helsinki, FI-00014, Finland
| | - Chang-Fang Wang
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, FI-00014, Finland.
| | - Alexandra Correia
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, FI-00014, Finland
| | - Ermei Mäkilä
- Department of Physics and Astronomy, Laboratory of Industrial Physics, University of Turku, FI-20520, Finland
| | - Osku S Alanen
- Department of Chemistry, Radiochemistry, University of Helsinki, FI-00014, Finland
| | - Jarno Salonen
- Department of Chemistry, Radiochemistry, University of Helsinki, FI-00014, Finland
| | - Anu J Airaksinen
- Department of Chemistry, Radiochemistry, University of Helsinki, FI-00014, Finland
| | - Raimo Tuominen
- Drug Research Program, Division of Pharmacology and Pharmacotherapy, Faculty of Pharmacy, University of Helsinki, FI-00014, Finland
| | - Jouni Hirvonen
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, FI-00014, Finland
| | - Mikko Airavaara
- Institute of Biotechnology, HiLIFE, University of Helsinki, FI-00014, Finland.
| | - Hélder A Santos
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, FI-00014, Finland; Helsinki Institute of Life Sciences, HiLIFE, University of Helsinki, FI-00014 Finland.
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Kumeria T, Qu Z, Popat A, Altalhi T, Santos A. Luminescent Porous Silicon Nanoparticles for Continuous Wave and Time-Gated Photoluminescence Imaging. Methods Mol Biol 2019; 2054:185-198. [PMID: 31482457 DOI: 10.1007/978-1-4939-9769-5_13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Luminescent porous silicon nanoparticles (LpSiNPs) display red-orange photoluminescence (PL) that provides large penetration depth for precise deep-tissue imaging and diagnostics. Herein, we describe in detail the fabrication process of porous silicon nanoparticles (pSiNPs), activation of photoluminescence, quantum yield measurement, and PL imaging. LpSiNPs perform as imaging probe for both the continuous wave and time-gated PL imaging.
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Affiliation(s)
- Tushar Kumeria
- School of Pharmacy, Pharmacy Australia Center of Excellence, The University of Queensland, Woolloongabba, QLD, Australia. .,Mater Research Institute, Translational Research Institute, The University of Queensland, Woolloongabba, QLD, Australia.
| | - Zhi Qu
- School of Pharmacy, Pharmacy Australia Center of Excellence, The University of Queensland, Woolloongabba, QLD, Australia.,Mater Research Institute, Translational Research Institute, The University of Queensland, Woolloongabba, QLD, Australia
| | - Amirali Popat
- School of Pharmacy, Pharmacy Australia Center of Excellence, The University of Queensland, Woolloongabba, QLD, Australia.,Mater Research Institute, Translational Research Institute, The University of Queensland, Woolloongabba, QLD, Australia
| | - Tariq Altalhi
- Department of Chemistry, Faculty of Science, Taif University, Taif, Saudi Arabia
| | - Abel Santos
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA, Australia.,Institute for Photonics and Advanced Sensing (IPAS), The University of Adelaide, Adelaide, SA, Australia.,ARC Centre of Excellence for Nanoscale BioPhotonics (CNBP), The University of Adelaide, Adelaide, SA, Australia
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Zeng X, Wang Q, Tan X, Jia L, Li Y, Hu M, Zhang Z, Bai X, Zhu Y, Yang X. Mild thermotherapy and hyperbaric oxygen enhance sensitivity of TMZ/PSi nanoparticles via decreasing the stemness in glioma. J Nanobiotechnology 2019; 17:47. [PMID: 30935403 DOI: 10.1186/s12951-019-0483-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 03/27/2019] [Indexed: 12/14/2022] Open
Abstract
Background Glioma is a common brain tumor with a high mortality rate. A small population of cells expressing stem-like cell markers in glioma contributes to drug resistance and tumor recurrence. Methods Porous silicon nanoparticles (PSi NPs) as photothermal therapy (PTT) agents loaded with TMZ (TMZ/PSi NPs), was combined with hyperbaric oxygen (HBO) therapy in vitro and in vivo. To further investigate underlying mechanism, we detected the expression of stem-like cell markers and hypoxia related molecules in vitro and in vivo after treatment of TMZ/PSi NPs in combination with PTT and HBO. Results NCH-421K and C6 cells were more sensitive to the combination treatment. Moreover, the expression of stem-like cell markers and hypoxia related molecules were decreased after combination treatment. The in vivo results were in line with in vitro. The combination treatment presents significant antitumor effects in mice bearing C6 tumor compared with the treatment of TMZ, PTT or TMZ/PSi NPs only. Conclusion These results suggested the TMZ/PSi NPs combined with HBO and PTT could be a potential therapeutic strategy for glioma. Electronic supplementary material The online version of this article (10.1186/s12951-019-0483-1) contains supplementary material, which is available to authorized users.
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Xia B, Wang B, Shi J, Zhang Y, Zhang Q, Chen Z, Li J. 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: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [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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Vale N, Correia A, Silva S, Figueiredo P, Mäkilä E, Salonen J, Hirvonen J, Pedrosa J, Santos HA, Fraga A. Preparation and biological evaluation of ethionamide-meso porous silicon nanoparticles against Mycobacterium tuberculosis. Bioorg Med Chem Lett 2016; 27:403-405. [PMID: 28057421 DOI: 10.1016/j.bmcl.2016.12.060] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Revised: 12/21/2016] [Accepted: 12/22/2016] [Indexed: 12/16/2022]
Abstract
Ethionamide (ETH) is an important second-line antituberculosis drug used for the treatment of patients infected with multidrug-resistant Mycobacterium tuberculosis. Recently, we reported that the loading of ETH into thermally carbonized-porous silicon (TCPSi) nanoparticles enhanced the solubility and permeability of ETH at different pH-values and also increased its metabolization process. Based on these results, we synthesized carboxylic acid functionalized thermally hydrocarbonized porous silicon nanoparticles (UnTHCPSi NPs) conjugated with ETH and its antimicrobial effect was evaluated against Mycobacterium tuberculosis strain H37Rv. The activity of the conjugate was increased when compared to free-ETH, which suggests that the nature of the synergy between the NPs and ETH is likely due to the weakening of the bacterial cell wall that improves conjugate-penetration. These ETH-conjugated NPs have great potential in reducing dosing frequency of ETH in the treatment of multidrug-resistant tuberculosis (MDR-TB).
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Affiliation(s)
- Nuno Vale
- UCIBIO/REQUIMTE, Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, Rua do Campo Alegre, 687, 4169-007 Porto, Portugal.
| | - Alexandra Correia
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, FI-00014 Helsinki, Finland
| | - Sara Silva
- UCIBIO/REQUIMTE, Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, Rua do Campo Alegre, 687, 4169-007 Porto, Portugal
| | - Patrícia Figueiredo
- 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 and Astronomy, University of Turku, FI-20014, Finland
| | - Jarno Salonen
- Laboratory of Industrial Physics, Department of Physics and Astronomy, University of Turku, FI-20014, Finland
| | - Jouni Hirvonen
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, FI-00014 Helsinki, Finland
| | - Jorge Pedrosa
- Microbiology and Infection Research Domain, Life and Health Sciences Research Institute, School of Health Sciences, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Hélder A Santos
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, FI-00014 Helsinki, Finland
| | - Alexandra Fraga
- Microbiology and Infection Research Domain, Life and Health Sciences Research Institute, School of Health Sciences, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
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11
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Shrestha N, Araújo F, Shahbazi MA, Mäkilä E, Gomes MJ, Airavaara M, Kauppinen EI, Raula J, Salonen J, Hirvonen J, Sarmento B, Santos HA. Oral hypoglycaemic effect of GLP-1 and DPP4 inhibitor based nanocomposites in a diabetic animal model. J Control Release 2016; 232:113-9. [PMID: 27091697 DOI: 10.1016/j.jconrel.2016.04.024] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2016] [Revised: 04/13/2016] [Accepted: 04/14/2016] [Indexed: 01/24/2023]
Abstract
Glucagon-like peptide-1 (GLP-1), an incretin hormone, is used for type 2 diabetes mellitus (T2DM) treatment because of its ability to stimulate insulin secretion and release in a glucose-dependent manner. Despite of its potent insulinotropic effect, oral GLP-1 delivery is greatly limited by its instability in the gastrointestinal tract, poor absorption efficiency and rapid degradation by dipeptidylpeptidase-4 (DPP4) enzyme leading to a short half-life (~2min). Thus, a multistage dual-drug delivery nanosystem was developed to deliver GLP-1 and DPP4 inhibitor simultaneously. The system comprised of chitosan-modified porous silicon (CSUn) nanoparticles, which were coated by an enteric polymer, hydroxypropylmethylcellulose acetate succinate MF, using aerosol flow reactor technology. A non-obese T2DM rat model induced by co-administration of nicotinamide and streptozotocin was used to evaluate the in vivo efficacy of the nanosystem. The oral administration of H-CSUn nanoparticles resulted in 32% reduction in blood glucose levels and ~6.0-fold enhancement in pancreatic insulin content, as compared to the GLP-1+DPP4 inhibitor solution. Overall, these results present a promising system for oral co-delivery of GLP-1 and DPP4 inhibitor that could be further evaluated in a chronic diabetic study.
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Wang CF, Mäkilä EM, Kaasalainen MH, Hagström MV, Salonen JJ, Hirvonen JT, Santos HA. Dual-drug delivery by porous silicon nanoparticles for improved cellular uptake, sustained release, and combination therapy. Acta Biomater 2015; 16:206-14. [PMID: 25637067 DOI: 10.1016/j.actbio.2015.01.021] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Revised: 01/12/2015] [Accepted: 01/16/2015] [Indexed: 01/28/2023]
Abstract
Dual-drug delivery of antiangiogenic and chemotherapeutic drugs can enhance the therapeutic effect for cancer therapy. Conjugation of methotrexate (MTX) to porous silicon (PSi) nanoparticles (MTX-PSi) with positively charged surface can improve the cellular uptake of MTX and inhibit the proliferation of cancer cells. Herein, MTX-PSi conjugates sustained the release of MTX up to 96 h, and the released fragments including MTX were confirmed by mass spectrometry. The intracellular distribution of the MTX-PSi nanoparticles was confirmed by transmission electron microscopy. Compared to pure MTX, the MTX-PSi achieved similar inhibition of cell proliferation in folate receptor (FR) over-expressing U87 MG cancer cells, and a higher effect in low FR-expressing EA.hy926 cells. Nuclear fragmentation analysis demonstrated programmed cell apoptosis of MTX-PSi in the high/low FR-expressing cancer cells, whereas PSi alone at the same dose had a minor effect on cell apoptosis. Finally, the porous structure of MTX-PSi enabled a successful concomitant loading of another anti-angiogenic hydrophobic drug, sorafenib, and considerably enhanced the dissolution rate of sorafenib. Overall, the MTX-PSi nanoparticles can be used as a platform for combination chemotherapy by simultaneously enhancing the dissolution rate of a hydrophobic drug and sustaining the release of a conjugated chemotherapeutic drug.
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Affiliation(s)
- Chang-Fang Wang
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, FI-00014 Helsinki, Finland.
| | - Ermei M Mäkilä
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, FI-00014 Helsinki, Finland; Laboratory of Industrial Physics, Department of Physics and Astronomy, University of Turku, FI-20014 Turku, Finland
| | - Martti H Kaasalainen
- Laboratory of Industrial Physics, Department of Physics and Astronomy, University of Turku, FI-20014 Turku, Finland
| | - Marja V Hagström
- Centre for Drug Research, Faculty of Pharmacy, University of Helsinki, FI-00014 Helsinki, Finland
| | - Jarno J Salonen
- Laboratory of Industrial Physics, Department of Physics and Astronomy, University of Turku, FI-20014 Turku, Finland
| | - Jouni T 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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13
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Näkki S, Rytkönen J, Nissinen T, Florea C, Riikonen J, Ek P, Zhang H, Santos HA, Närvänen A, Xu W, Lehto VP. Improved stability and biocompatibility of nanostructured silicon drug carrier for intravenous administration. Acta Biomater 2015; 13:207-15. [PMID: 25463492 DOI: 10.1016/j.actbio.2014.11.019] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2014] [Revised: 11/04/2014] [Accepted: 11/12/2014] [Indexed: 12/13/2022]
Abstract
Nanotechnology has attracted considerable interest in the field of biomedicine, where various nanoparticles (NPs) have been introduced as efficient drug carrier systems. Mesoporous silicon (PSi) is one of the most promising materials in this field due to its low toxicity, good biodegradability, high surface area, tunable pore size and controllable surface functionality. However, recognition by the reticuloendothelial system and particle agglomeration hinder the use of PSi for intravenous applications. The present paper describes a dual-PEGylation method, where two PEG molecules with different sizes (0.5 and 2 kDa) were grafted simultaneously in a single process onto thermally oxidized PSi NPs to form a high-density PEG coating with both brush-like and mushroom-like conformation. The material was characterized in detail and the effects of the dual-PEGylation on cell viability, protein adsorption and macrophage uptakes were evaluated. The results show that dual-PEGylation improves the colloidal stability of the NPs in salt solutions, prolongs their half-lives, and minimizes both protein adsorption and macrophage uptake. Therefore, these new dual-PEGylated PSi NPs are potential candidates for intravenous applications.
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Affiliation(s)
- Simo Näkki
- Department of Applied Physics, University of Eastern Finland, FI-70211 Kuopio, Finland
| | - Jussi Rytkönen
- School of Pharmacy, University of Eastern Finland, FI-70211 Kuopio, Finland
| | - Tuomo Nissinen
- Department of Applied Physics, University of Eastern Finland, FI-70211 Kuopio, Finland
| | - Cristina Florea
- Department of Applied Physics, University of Eastern Finland, FI-70211 Kuopio, Finland
| | - Joakim Riikonen
- Department of Applied Physics, University of Eastern Finland, FI-70211 Kuopio, Finland
| | - Paul Ek
- Laboratory of Analytical Chemistry, Åbo Akademi University, FI-20500 Turku, Finland
| | - Hongbo Zhang
- 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
| | - Ale Närvänen
- School of Pharmacy, University of Eastern Finland, FI-70211 Kuopio, Finland
| | - Wujun Xu
- Department of Applied Physics, University of Eastern Finland, FI-70211 Kuopio, Finland.
| | - Vesa-Pekka Lehto
- Department of Applied Physics, University of Eastern Finland, FI-70211 Kuopio, Finland
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Kafshgari MH, Cavallaro A, Delalat B, Harding FJ, McInnes SJP, Mäkilä E, Salonen J, Vasilev K, Voelcker NH. Nitric oxide-releasing porous silicon nanoparticles. Nanoscale Res Lett 2014; 9:333. [PMID: 25114633 PMCID: PMC4109794 DOI: 10.1186/1556-276x-9-333] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Accepted: 06/24/2014] [Indexed: 05/28/2023]
Abstract
In this study, the ability of porous silicon nanoparticles (PSi NPs) to entrap and deliver nitric oxide (NO) as an effective antibacterial agent is tested against different Gram-positive and Gram-negative bacteria. NO was entrapped inside PSi NPs functionalized by means of the thermal hydrocarbonization (THC) process. Subsequent reduction of nitrite in the presence of d-glucose led to the production of large NO payloads without reducing the biocompatibility of the PSi NPs with mammalian cells. The resulting PSi NPs demonstrated sustained release of NO and showed remarkable antibacterial efficiency and anti-biofilm-forming properties. These results will set the stage to develop antimicrobial nanoparticle formulations for applications in chronic wound treatment.
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Affiliation(s)
- Morteza Hasanzadeh Kafshgari
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology,
Mawson Institute, University of South Australia, GPO Box 2471 Adelaide, SA
5001, Australia
| | - Alex Cavallaro
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology,
Mawson Institute, University of South Australia, GPO Box 2471 Adelaide, SA
5001, Australia
| | - Bahman Delalat
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology,
Mawson Institute, University of South Australia, GPO Box 2471 Adelaide, SA
5001, Australia
| | - Frances J Harding
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology,
Mawson Institute, University of South Australia, GPO Box 2471 Adelaide, SA
5001, Australia
| | - Steven JP McInnes
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology,
Mawson Institute, University of South Australia, GPO Box 2471 Adelaide, SA
5001, Australia
| | - Ermei Mäkilä
- 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
| | - Krasimir Vasilev
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology,
Mawson Institute, University of South Australia, GPO Box 2471 Adelaide, SA
5001, Australia
| | - Nicolas H Voelcker
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology,
Mawson Institute, University of South Australia, GPO Box 2471 Adelaide, SA
5001, Australia
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