51
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Mei X, Wang W, Yan L, Hu T, Liang R, Yan D, Wei M, Evans DG, Duan X. Hydrotalcite monolayer toward high performance synergistic dual-modal imaging and cancer therapy. Biomaterials 2018; 165:14-24. [PMID: 29500979 DOI: 10.1016/j.biomaterials.2018.02.032] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Revised: 02/06/2018] [Accepted: 02/16/2018] [Indexed: 01/15/2023]
Abstract
Recently, theranostic has drawn tremendous attention by virtue of the nanotechnology development and new material exploration. Herein, we reported a novel theranostic system by loading Au nanoclusters (AuNCs) and Chlorin e6 (photosensitizer, Ce6) onto the monolayer nanosheet surface of Gd-doped layered double hydroxide (Gd-LDH). The as-prepared Ce6&AuNCs/Gd-LDH exhibits a largely enhanced fluorescence quantum yield (QY) of 18.5% relative to pristine AuNCs (QY = 3.1%) as well as superior T1 magnetic resonance imaging (MRI) performance (r1 = 17.57 mM-1s-1) compared with commercial MRI contrast agent (Gd(III)-1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid (Gd-DOTA): r1 ≈ 3.4 mM-1s-1), resulting from a synergistic effect between AuNCs and Gd-LDH. In addition, both in vitro and in vivo therapeutic evaluations demonstrate an efficient dual-modality imaging guided anticancer performance, especially the synergetic enhanced magnetic resonance/fluorescence (MR/FL) visualization of tumor site. Therefore, this work demonstrates a successful paradigm for the design and preparation of LDHs monolayer-based theranostic material, which holds great promises in practical applications.
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Affiliation(s)
- Xuan Mei
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Wei Wang
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Liang Yan
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Tingting Hu
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Ruizheng Liang
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China.
| | - Dan Yan
- Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, PR China.
| | - Min Wei
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China.
| | - David G Evans
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Xue Duan
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China
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52
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Sun Q, You Q, Wang J, Liu L, Wang Y, Song Y, Cheng Y, Wang S, Tan F, Li N. Theranostic Nanoplatform: Triple-Modal Imaging-Guided Synergistic Cancer Therapy Based on Liposome-Conjugated Mesoporous Silica Nanoparticles. ACS APPLIED MATERIALS & INTERFACES 2018; 10:1963-1975. [PMID: 29276824 DOI: 10.1021/acsami.7b13651] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Mesoporous silica nanoparticles (MSNs) have long since been investigated to provide a versatile drug-delivery platform due to their multitudinous merits. Presently, gadolinium (Gd), a T1 magnetic resonance imaging (MRI) contrast agent, was doped into MSNs as a newly emerging theranostic nanocomposite, which has received much research attention. However, it is still concerned about the dispersibility and drug leakage of MSNs. Hence, in this project, we constructed an near-infrared (NIR) irradiation-triggered, triple-modal imaging-guided nanoplatform based on doxorubicin (DOX)@Gd-doped MSNs, conjugating with indocyanine green (ICG)-loaded thermosensitive liposomes (designated as DOX@GdMSNs-ICG-TSLs). In this platform, ICG could contribute to both photodynamic therapy and photothermal therapy effects; meanwhile, it could also give play to near-infrared fluorescence imaging (NIRFI) as well as photoacoustic imaging (PAI). Consequently, NIRFI and PAI from ICG combined with the MRI function of Gd, devoted to triple-modal imaging with success. At the same time, folic acid-modified thermosensitive liposomes were explored to be coated onto the surface of DOX@GdMSNs, to solve the DOX leakage as well as improve cellular uptake. Under NIR irradiation, ICG could generate heat, thus leading to the rupture of ICG-TSLs and the release of DOX. Accordingly, the multifunctional nanocomposite appeared to be a promising meritorious theranostic nanoplatform to pave a way for treating cancer.
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Affiliation(s)
- Qi Sun
- Tianjin Key Laboratory of Drug Delivery and High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University , Tianjin 300072, China
| | - Qing You
- Tianjin Key Laboratory of Drug Delivery and High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University , Tianjin 300072, China
| | - Jinping Wang
- Tianjin Key Laboratory of Drug Delivery and High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University , Tianjin 300072, China
| | - Li Liu
- Tianjin Key Laboratory of Drug Delivery and High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University , Tianjin 300072, China
| | - Yidan Wang
- Tianjin Key Laboratory of Drug Delivery and High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University , Tianjin 300072, China
| | - Yilin Song
- Tianjin Key Laboratory of Drug Delivery and High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University , Tianjin 300072, China
| | - Yu Cheng
- Tianjin Key Laboratory of Drug Delivery and High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University , Tianjin 300072, China
| | - Siyu Wang
- Tianjin Key Laboratory of Drug Delivery and High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University , Tianjin 300072, China
| | - Fengping Tan
- Tianjin Key Laboratory of Drug Delivery and High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University , Tianjin 300072, China
| | - Nan Li
- Tianjin Key Laboratory of Drug Delivery and High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University , Tianjin 300072, China
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53
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Dong L, Ji G, Liu Y, Xu X, Lei P, Du K, Song S, Feng J, Zhang H. Multifunctional Cu-Ag 2S nanoparticles with high photothermal conversion efficiency for photoacoustic imaging-guided photothermal therapy in vivo. NANOSCALE 2018; 10:825-831. [PMID: 29260827 DOI: 10.1039/c7nr07263e] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Photothermal therapy (PTT) has attracted increasing interest and become widely used in cancer therapy owing to its noninvasiveness and low level of systemic adverse effects. However, there is an urgent need to develop biocompatible and multifunctional PTT agents with high photothermal conversion efficiency. Herein, biocompatible Cu-Ag2S/PVP nanoparticles (NPs) with strong near-infrared absorption and high photothermal conversion efficiency were successfully synthesized for high-performance photoacoustic (PA) imaging-guided PTT in vivo. The novel Cu-Ag2S/PVP NPs feature high photothermal conversion efficiency (58.2%) under 808 nm light irradiation, noticeably higher than those of most reported PTT agents. Because of their good dispersibility, Cu-Ag2S/PVP NPs passively accumulate within tumors via the enhanced permeability and retention effect, which can be confirmed by PA imaging, photothermal performance, and biodistribution in vivo. Furthermore, Cu-Ag2S/PVP NPs are thoroughly cleared through feces and urine within seven days, indicating a high level of biosafety for further potential clinical translation.
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Affiliation(s)
- Lile Dong
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.
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54
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Schubert J, Chanana M. Coating Matters: Review on Colloidal Stability of Nanoparticles with Biocompatible Coatings in Biological Media, Living Cells and Organisms. Curr Med Chem 2018; 25:4553-4586. [PMID: 29852857 PMCID: PMC7040520 DOI: 10.2174/0929867325666180601101859] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 03/13/2018] [Accepted: 04/18/2018] [Indexed: 12/21/2022]
Abstract
Within the last two decades, the field of nanomedicine has not developed as successfully as has widely been hoped for. The main reason for this is the immense complexity of the biological systems, including the physico-chemical properties of the biological fluids as well as the biochemistry and the physiology of living systems. The nanoparticles' physicochemical properties are also highly important. These differ profoundly from those of freshly synthesized particles when applied in biological/living systems as recent research in this field reveals. The physico-chemical properties of nanoparticles are predefined by their structural and functional design (core and coating material) and are highly affected by their interaction with the environment (temperature, pH, salt, proteins, cells). Since the coating material is the first part of the particle to come in contact with the environment, it does not only provide biocompatibility, but also defines the behavior (e.g. colloidal stability) and the fate (degradation, excretion, accumulation) of nanoparticles in the living systems. Hence, the coating matters, particularly for a nanoparticle system for biomedical applications, which has to fulfill its task in the complex environment of biological fluids, cells and organisms. In this review, we evaluate the performance of different coating materials for nanoparticles concerning their ability to provide colloidal stability in biological media and living systems.
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Affiliation(s)
- Jonas Schubert
- Address correspondence to these authors at the Department of Nanostructured Materials, Leibniz-Institut für Polymerforschung Dresden, Dresden, Germany and Department of Physical Chemistry II, University of Bayreuth, 95447 Bayreuth, Germany;E-mails: ;
| | - Munish Chanana
- Address correspondence to these authors at the Department of Nanostructured Materials, Leibniz-Institut für Polymerforschung Dresden, Dresden, Germany and Department of Physical Chemistry II, University of Bayreuth, 95447 Bayreuth, Germany;E-mails: ;
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55
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Wu Q, Chen H, Fang A, Wu X, Liu M, Li H, Zhang Y, Yao S. Universal Multifunctional Nanoplatform Based on Target-Induced in Situ Promoting Au Seeds Growth to Quench Fluorescence of Upconversion Nanoparticles. ACS Sens 2017; 2:1805-1813. [PMID: 29185338 DOI: 10.1021/acssensors.7b00616] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Construction of a new multifunctional chemo/biosensing platform for small biomolecules and tumor markers is of great importance in analytical chemistry. Herein, a novel universal multifunctional nanoplatform for biomolecules and enzyme activity detection was proposed based on fluorescence resonance energy transfer (FRET) between upconversion nanoparticles (UCNPs) and target-inducing enlarged gold nanoparticles (AuNPs). The reductive molecule such as H2O2 can act as the reductant to reduce HAuCl4, which will make the Au seeds grow. The enlarged AuNPs can effectively quench the fluorescence of UCNPs owing to the good spectral overlap between the absorption band of the AuNPs and the emission band of the UCNPs. Utilizing the FRET between the UCNPs and enlarged AuNPs, good linear relationship between the fluorescence of UCNPs and the concentration of H2O2 can be found. Based on this strategy, H2O2 related molecules such as l-lactate, glucose, and uric acid can also be quantified. On the basis of UCNPs and PVP/HAuCl4, a general strategy for other reductants such as ascorbic acid (AA), dopamine (DA), or enzyme activity can be established. Therefore, the universal multifunctional nanoplatform based on UCNPs and the target-inducing in situ enlarged Au NPs will show its potential as a simple method for the detection of some life related reductive molecules, enzyme substrates, as well as enzyme activity.
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Affiliation(s)
- Qiongqiong Wu
- Key Laboratory of Chemical
Biology and Traditional Chinese Medicine Research (Ministry of Education),
College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Hongyu Chen
- Key Laboratory of Chemical
Biology and Traditional Chinese Medicine Research (Ministry of Education),
College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Aijin Fang
- Key Laboratory of Chemical
Biology and Traditional Chinese Medicine Research (Ministry of Education),
College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Xinyang Wu
- Key Laboratory of Chemical
Biology and Traditional Chinese Medicine Research (Ministry of Education),
College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Meiling Liu
- Key Laboratory of Chemical
Biology and Traditional Chinese Medicine Research (Ministry of Education),
College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Haitao Li
- Key Laboratory of Chemical
Biology and Traditional Chinese Medicine Research (Ministry of Education),
College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Youyu Zhang
- Key Laboratory of Chemical
Biology and Traditional Chinese Medicine Research (Ministry of Education),
College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Shouzhuo Yao
- Key Laboratory of Chemical
Biology and Traditional Chinese Medicine Research (Ministry of Education),
College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
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56
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Deyev SM, Lebedenko EN. Targeted Bifunctional Proteins and Hybrid Nanoconstructs for Cancer Diagnostics and Therapies. Mol Biol 2017. [DOI: 10.1134/s002689331706005x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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57
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Yang D, Gulzar A, Yang G, Gai S, He F, Dai Y, Zhong C, Yang P. Au Nanoclusters Sensitized Black TiO 2-x Nanotubes for Enhanced Photodynamic Therapy Driven by Near-Infrared Light. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13:1703007. [PMID: 29094517 DOI: 10.1002/smll.201703007] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Revised: 09/11/2017] [Indexed: 05/22/2023]
Abstract
The low reactive oxygen species production capability and the shallow tissue penetration of excited light (UV) are still two barriers in photodynamic therapy (PDT). Here, Au cluster anchored black anatase TiO2-x nanotubes (abbreviated as Au25 /B-TiO2-x NTs) are synthesized by gaseous reduction of anatase TiO2 NTs and subsequent deposition of noble metal. The Au25 /B-TiO2-x NTs with thickness of about 2 nm exhibit excellent PDT performance. The reduction process increased the density of Ti3+ on the surface of TiO2 , which effectively depresses the recombination of electron and hole. Furthermore, after modification of Au25 nanoclusters, the PDT efficiency is further enhanced owing to the changed electrical distribution in the composite, which forms a shallow potential well on the metal-TiO2 interface to further hamper the recombination of electron and hole. Especially, the reduction of anatase TiO2 can expend the light response range (UV) of TiO2 to the visible and even near infrared (NIR) light region with high tissue penetration depth. When excited by NIR light, the nanoplatform shows markedly improved therapeutic efficacy attributed to the photocatalytic synergistic effect, and promotes separation or restrained recombination of electron and hole, which is verified by experimental results in vitro and in vivo.
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Affiliation(s)
- Dan Yang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, P. R. China
| | - Arif Gulzar
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, P. R. China
| | - Guixin Yang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, P. R. China
| | - Shili Gai
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, P. R. China
| | - Fei He
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, P. R. China
| | - Yunlu Dai
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, P. R. China
| | - Chongna Zhong
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, P. R. China
| | - Piaoping Yang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, P. R. China
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58
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Dykman LA, Staroverov SA, Fomin AS, Khanadeev VA, Khlebtsov BN, Bogatyrev VA. Gold nanoparticles as an adjuvant: Influence of size, shape, and technique of combination with CpG on antibody production. Int Immunopharmacol 2017; 54:163-168. [PMID: 29149704 DOI: 10.1016/j.intimp.2017.11.008] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Revised: 11/06/2017] [Accepted: 11/07/2017] [Indexed: 01/09/2023]
Abstract
Gold nanoparticles (GNPs) are advantageous as an adjuvant in the design of effective vaccines and in the preparation of high-affinity antibodies to haptens and complete antigens. Another method of activating immunocompetent cells with colloidal gold is to conjugate GNPs with CpG oligodeoxynucleotides (ODNs). We examined how the size and shape of GNPs and various combinations of GNPs and CpG ODNs 1826 affect the immune response. When animals were injected with a model antigen (BSA) coupled to gold nanospheres (diameters, 15 and 50nm), nanorods, nanoshells, and nanostars, the titers of the resultant antibodies differed substantially. The antibody titers decreased in the sequence GNPs-50nm>GNPs-15nm>nanoshells>nanostars>nanorods>native BSA. We conclude that 50 and 15nm gold nanospheres are the optimal antigen carrier and adjuvant for immunization. The highest titer of anti-BSA antibodies was detected in the blood serum of mice immunized simultaneously with BSA-GNP and CpG-GNP conjugates.
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Affiliation(s)
- Lev A Dykman
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, 13 Prospekt Entuziastov, Saratov 410049, Russia; Saratov Science Research Veterinary Institute, Russian Academy of Sciences, 6 Ulitsa 53-ei Strelkovoi Divizii, Saratov 410028, Russia.
| | - Sergey A Staroverov
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, 13 Prospekt Entuziastov, Saratov 410049, Russia; Saratov Science Research Veterinary Institute, Russian Academy of Sciences, 6 Ulitsa 53-ei Strelkovoi Divizii, Saratov 410028, Russia
| | - Alexander S Fomin
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, 13 Prospekt Entuziastov, Saratov 410049, Russia; Saratov Science Research Veterinary Institute, Russian Academy of Sciences, 6 Ulitsa 53-ei Strelkovoi Divizii, Saratov 410028, Russia
| | - Vitaly A Khanadeev
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, 13 Prospekt Entuziastov, Saratov 410049, Russia
| | - Boris N Khlebtsov
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, 13 Prospekt Entuziastov, Saratov 410049, Russia
| | - Vladimir A Bogatyrev
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, 13 Prospekt Entuziastov, Saratov 410049, Russia
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59
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Potara M, Nagy-Simon T, Craciun AM, Suarasan S, Licarete E, Imre-Lucaci F, Astilean S. Carboplatin-Loaded, Raman-Encoded, Chitosan-Coated Silver Nanotriangles as Multimodal Traceable Nanotherapeutic Delivery Systems and pH Reporters inside Human Ovarian Cancer Cells. ACS APPLIED MATERIALS & INTERFACES 2017; 9:32565-32576. [PMID: 28872817 DOI: 10.1021/acsami.7b10075] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Ovarian cancer is a common cause of cancer death in women and is associated with the highest mortality rates of all gynecological malignancies. Carboplatin (CBP) is the most used cytotoxic agent in the treatment of ovarian cancer. Herein, we design and assess a CBP nanotherapeutic delivery system which allows combinatorial functionalities of chemotherapy, pH sensing, and multimodal traceable properties inside live NIH:OVCAR-3 ovarian cancer cells. In our design, a pH-sensitive Raman reporter, 4-mercaptobenzoic acid (4MBA) is anchored onto the surface of chitosan-coated silver nanotriangles (chit-AgNTs) to generate a robust surface-enhanced Raman scattering (SERS) traceable system. To endow this nanoplatform with chemotherapeutic abilities, CBP is then loaded to 4MBA-labeled chit-AgNTs (4MBA-chit-AgNTs) core under alkaline conditions. The uptake and tracking potential of CBP-4MBA-chit-AgNTs at different Z-depths inside live ovarian cancer cells is evaluated by dark-field and differential interference contrast (DIC) microscopy. The ability of CBP-4MBA-chit-AgNTs to operate as near-infrared (NIR)-responsive contrast agents is validated using two noninvasive techniques: two-photon (TP)-excited fluorescence lifetime imaging microscopy (FLIM) and confocal Raman microscopy (CRM). The most informative data about the precise localization of nanocarriers inside cells correlated with intracellular pH sensing is provided by multivariate analysis of Raman spectra collected by scanning CRM. The in vitro cell proliferation assay clearly shows the effectiveness of the prepared nanocarriers in inhibiting the growth of NIH:OVCAR-3 cancer cells. We anticipate that this class of nanocarriers holds great promise for application in image-guided ovarian cancer chemotherapy.
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Affiliation(s)
| | | | | | | | | | | | - Simion Astilean
- Department of Biomolecular Physics, Faculty of Physics, Babes-Bolyai University , M Kogalniceanu Str. 1, 400084 Cluj-Napoca, Romania
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60
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Dai Y, Yang D, Yu D, Cao C, Wang Q, Xie S, Shen L, Feng W, Li F. Mussel-Inspired Polydopamine-Coated Lanthanide Nanoparticles for NIR-II/CT Dual Imaging and Photothermal Therapy. ACS APPLIED MATERIALS & INTERFACES 2017; 9:26674-26683. [PMID: 28726368 DOI: 10.1021/acsami.7b06109] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Nanomedicine has attracted substantial attention for the accurate diagnosis or treatment of carcinoma in recent years. Nd3+-doped lanthanide nanophosphor-based near-infrared-II (NIR-II) optical imaging is widely used for deep penetration tissue imaging while X-ray computed tomography (CT) is well-suited for in vivo imaging. Polymer-coated lanthanide nanophosphors are increasingly used in both diagnostics and therapies for tumor in vivo. However, the biocompatibility of nanocomposites and the efficiency of tumor ablation should be taken into consideration when constructing a nanotheranostic probe. In this article, we have fabricated polydopamine (PDA)-coated NaYF4:Nd3+@NaLuF4 nanocomposites using the reverse microemulsion approach. The thickness of the PDA shell can be precisely modulated from ∼1.5 to ∼18 nm, endowing the obtained NaYF4:Nd3+@NaLuF4@PDA with an excellent colloidal stability and considerable biocompatibility. The photothermal conversion efficiency of the resultant nanocomposites was optimized and maximized by the increase of the PDA shell thickness. Because of the remarkable photothermal conversion efficiency, the mice xenograft tumors were completely eradicated after NIR irradiation. Given the considerable photoluminescence and X-ray attenuation efficiency, the performance of NaYF4:Nd3+@NaLuF4@PDA for NIR-II optical imaging and X-ray CT dual imaging of the tumor in vivo was evaluated. All of the results above highlight the great potential of PDA-based NaYF4:Nd3+@NaLuF4 nanocomposites as a novel multifunctional nanotheranostic agent.
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Affiliation(s)
- Yu Dai
- Department of Chemistry, Fudan University , Shanghai 20043, People's Republic of China
| | - Dongpeng Yang
- Department of Chemistry, Fudan University , Shanghai 20043, People's Republic of China
| | - Danping Yu
- School of Chemistry and Chemical Engineering, Jiangxi Engineering Laboratory of Waterborne Coating, Jiangxi Science and Technology Normal University , Nanchang, Jiangxi 330013, People's Republic of China
| | - Cong Cao
- Department of Chemistry, Fudan University , Shanghai 20043, People's Republic of China
| | - Qiuhong Wang
- Department of Chemistry, Fudan University , Shanghai 20043, People's Republic of China
| | - Songhai Xie
- Department of Chemistry, Fudan University , Shanghai 20043, People's Republic of China
| | - Liang Shen
- School of Chemistry and Chemical Engineering, Jiangxi Engineering Laboratory of Waterborne Coating, Jiangxi Science and Technology Normal University , Nanchang, Jiangxi 330013, People's Republic of China
| | - Wei Feng
- Department of Chemistry, Fudan University , Shanghai 20043, People's Republic of China
| | - Fuyou Li
- Department of Chemistry, Fudan University , Shanghai 20043, People's Republic of China
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61
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Jin H, Zhao G, Hu J, Ren Q, Yang K, Wan C, Huang A, Li P, Feng JP, Chen J, Zou Z. Melittin-Containing Hybrid Peptide Hydrogels for Enhanced Photothermal Therapy of Glioblastoma. ACS APPLIED MATERIALS & INTERFACES 2017; 9:25755-25766. [PMID: 28714303 DOI: 10.1021/acsami.7b06431] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The design of biocompatible and efficacious anticancer biomaterials to achieve relatively low tumor recurrence rates is the main pursuit of cancer photothermal therapy (PTT). RADA16-I is a synthetic amphiphilic peptide with the sequence RADARADARADARADA that can self-assemble into a peptide nanofiber hydrogel. In this study, we synthesized a novel melittin-RADA32-indocyanine green (ICG) hydrogel ("MRI hydrogel"), which contains melittin in the peptide hydrogel backbone and ICG in the hydrogel matrix, for enhanced PTT of glioblastomas. The MRI hydrogel exhibited physiologic characteristics similar to those of the RADA16 hydrogel, while displaying concentration-dependent cytotoxicity to C6 glioma cells and photothermal effects. The in vivo biodistribution of the MRI hydrogel was visualized by near-infrared fluorescence and photoacoustic imaging. More importantly, in vivo PTT provided by the MRI hydrogel significantly reduced the tumor size and the tumor recurrence rate compared with the RADR16-ICG hydrogel and other controls, suggesting a synergistic effect of MRI hydrogel-carried melittin and ICG-based PTT treatment. Thus, MRI provides an alternative tool for the safe and efficient PTT treatment of tumors.
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Affiliation(s)
- Honglin Jin
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology , Wuhan 430022, China
| | - Guifang Zhao
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology , Wuhan 430022, China
| | - Jianli Hu
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology , Wuhan 430022, China
| | - Quanguang Ren
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology , Wuhan 430022, China
| | - Kui Yang
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology , Wuhan 430022, China
| | - Chao Wan
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology , Wuhan 430022, China
| | - Ai Huang
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology , Wuhan 430022, China
| | - Pindong Li
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology , Wuhan 430022, China
| | - Jue-Ping Feng
- Department of Oncology, PuAi Hospital, Tongji Medical College, Huazhong University of Science and Technology , Wuhan 430034, China
| | - Jing Chen
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology , Wuhan 430022, China
| | - Zhenwei Zou
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology , Wuhan 430022, China
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62
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Nagy-Simon T, Tatar AS, Craciun AM, Vulpoi A, Jurj MA, Florea A, Tomuleasa C, Berindan-Neagoe I, Astilean S, Boca S. Antibody Conjugated, Raman Tagged Hollow Gold-Silver Nanospheres for Specific Targeting and Multimodal Dark-Field/SERS/Two Photon-FLIM Imaging of CD19(+) B Lymphoblasts. ACS APPLIED MATERIALS & INTERFACES 2017; 9:21155-21168. [PMID: 28574250 DOI: 10.1021/acsami.7b05145] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
In this Research Article, we propose a new class of contrast agents for the detection and multimodal imaging of CD19(+) cancer lymphoblasts. The agents are based on NIR responsive hollow gold-silver nanospheres conjugated with antiCD19 monoclonal antibodies and marked with Nile Blue (NB) SERS active molecules (HNS-NB-PEG-antiCD19). Proof of concept experiments on specificity of the complex for the investigated cells was achieved by transmission electron microscopy (TEM). The microspectroscopic investigations via dark field (DF), surface-enhanced Raman spectroscopy (SERS), and two-photon excited fluorescence lifetime imaging microscopy (TPE-FLIM) corroborate with TEM and demonstrate successful and preferential internalization of the antibody-nanocomplex. The combination of the microspectroscopic techniques enables contrast and sensitivity that competes with more invasive and time demanding cell imaging modalities, while depth sectioning images provide real time localization of the nanoparticles in the whole cytoplasm at the entire depth of the cells. Our findings prove that HNS-NB-PEG-antiCD19 represent a promising type of new contrast agents with great possibility of being detected by multiple, non invasive, rapid and accessible microspectroscopic techniques and real applicability for specific targeting of CD19(+) cancer cells. Such versatile nanocomplexes combine in one single platform the detection and imaging of cancer lymphoblasts by DF, SERS, and TPE-FLIM microspectroscopy.
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Affiliation(s)
- Timea Nagy-Simon
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute in Bio-Nano-Sciences, Babes-Bolyai University , T. Laurian 42, 400271, Cluj-Napoca, Romania
| | - Andra-Sorina Tatar
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute in Bio-Nano-Sciences, Babes-Bolyai University , T. Laurian 42, 400271, Cluj-Napoca, Romania
- Faculty of Physics, Babes-Bolyai University , Kogalniceanu 1, 400084 Cluj-Napoca, Romania
| | - Ana-Maria Craciun
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute in Bio-Nano-Sciences, Babes-Bolyai University , T. Laurian 42, 400271, Cluj-Napoca, Romania
| | - Adriana Vulpoi
- Nanostructured Materials and Bio-Nano-Interfaces Center, Interdisciplinary Research Institute in Bio-Nano-Sciences, Babes-Bolyai University , T. Laurian 42, 400271, Cluj-Napoca, Romania
| | - Maria-Ancuta Jurj
- Research Center for Functional Genomics and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy , Cluj-Napoca, Romania
| | - Adrian Florea
- Department of Cell and Molecular Biology, Iuliu Hatieganu University of Medicine and Pharmacy , Cluj-Napoca, Romania
| | - Ciprian Tomuleasa
- Research Center for Functional Genomics and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy , Cluj-Napoca, Romania
| | - Ioana Berindan-Neagoe
- Research Center for Functional Genomics and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy , Cluj-Napoca, Romania
| | - Simion Astilean
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute in Bio-Nano-Sciences, Babes-Bolyai University , T. Laurian 42, 400271, Cluj-Napoca, Romania
- Faculty of Physics, Babes-Bolyai University , Kogalniceanu 1, 400084 Cluj-Napoca, Romania
| | - Sanda Boca
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute in Bio-Nano-Sciences, Babes-Bolyai University , T. Laurian 42, 400271, Cluj-Napoca, Romania
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63
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Jia Q, Ge J, Liu W, Zheng X, Wang M, Zhang H, Wang P. Biocompatible Iron Phthalocyanine-Albumin Assemblies as Photoacoustic and Thermal Theranostics in Living Mice. ACS APPLIED MATERIALS & INTERFACES 2017; 9:21124-21132. [PMID: 28590721 DOI: 10.1021/acsami.7b04360] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Exploring novel and versatile nanomaterials for the construction of personalized multifunctional phototheranostics with significant potentials in bioimaging-guided tumor phototherapies has attracted considerable attention. Herein, the phototheranostic agent human serum albumin-iron (II) phthalocyanine FePc nanoparticles (HSA-FePc NPs) were fabricated for photoacoustic (PA) imaging-guided photothermal therapy (PTT) of cancer in vivo. The prepared HSA-FePc NPs exhibited high stability, efficient NIR absorption, good capability and stability of photothermal behavior with a high photothermal conversion efficiency of ∼44.4%, high contrast and spatial resolution of PA imaging, efficient cancer therapy, and low long-term toxicity. This potent multifunctional phototheranostic is, therefore, very promising and favorable for effective, precise, and safe antitumor treatment in clinical application.
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Affiliation(s)
- Qingyan Jia
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , Beijing 100190, People's Republic of China
- School of Future Technology, University of Chinese Academy of Sciences , Beijing 100049, People's Republic of China
| | - Jiechao Ge
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , Beijing 100190, People's Republic of China
- School of Future Technology, University of Chinese Academy of Sciences , Beijing 100049, People's Republic of China
| | - Weimin Liu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , Beijing 100190, People's Republic of China
- School of Future Technology, University of Chinese Academy of Sciences , Beijing 100049, People's Republic of China
| | - Xiuli Zheng
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , Beijing 100190, People's Republic of China
- School of Future Technology, University of Chinese Academy of Sciences , Beijing 100049, People's Republic of China
| | - Mengqi Wang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , Beijing 100190, People's Republic of China
| | - Hongyan Zhang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , Beijing 100190, People's Republic of China
| | - Pengfei Wang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , Beijing 100190, People's Republic of China
- School of Future Technology, University of Chinese Academy of Sciences , Beijing 100049, People's Republic of China
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64
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Díaz SA, Sen S, Boeneman Gemmill K, Brown CW, Oh E, Susumu K, Stewart MH, Breger JC, Lasarte Aragonés G, Field LD, Deschamps JR, Král P, Medintz IL. Elucidating Surface Ligand-Dependent Kinetic Enhancement of Proteolytic Activity at Surface-Modified Quantum Dots. ACS NANO 2017; 11:5884-5896. [PMID: 28603969 DOI: 10.1021/acsnano.7b01624] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Combining biomolecules such as enzymes with nanoparticles has much to offer for creating next generation synergistically functional bionanomaterials. However, almost nothing is known about how these two disparate components interact at this critical biomolecular-materials interface to give rise to improved activity and emergent properties. Here we examine how the nanoparticle surface can influence and increase localized enzyme activity using a designer experimental system consisting of trypsin proteolysis acting on peptide-substrates displayed around semiconductor quantum dots (QDs). To minimize the complexity of analyzing this system, only the chemical nature of the QD surface functionalizing ligands were modified. This was accomplished by synthesizing a series of QD ligands that were either positively or negatively charged, zwitterionic, neutral, and with differing lengths. The QDs were then assembled with different ratios of dye-labeled peptide substrates and exposed to trypsin giving rise to progress curves that were monitored by Förster resonance energy transfer (FRET). The resulting trypsin activity profiles were analyzed in the context of detailed molecular dynamics simulations of key interactions occurring at this interface. Overall, we find that a combination of factors can give rise to a localized activity that was 35-fold higher than comparable freely diffusing enzyme-substrate interactions. Contributing factors include the peptide substrate being prominently displayed extending from the QD surface and not sterically hindered by the longer surface ligands in conjunction with the presence of electrostatic and other productive attractive forces between the enzyme and the QD surface. An intimate understanding of such critical interactions at this interface can produce a set of guidelines that will allow the rational design of next generation high-activity bionanocomposites and theranostics.
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Affiliation(s)
- Sebastián A Díaz
- American Society for Engineering Education , Washington, D.C. 20036, United States
| | | | | | - Carl W Brown
- College of Science George Mason University , Fairfax, Virginia 22030, United States
| | - Eunkeu Oh
- Sotera Defense Solutions, Inc. , Columbia, Maryland 21046, United States
| | - Kimihiro Susumu
- Sotera Defense Solutions, Inc. , Columbia, Maryland 21046, United States
| | | | | | | | - Lauren D Field
- Fischell Department of Bioengineering, University of Maryland , College Park, Maryland 20742, United States
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65
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Li J, Liu J, Chen C. Remote Control and Modulation of Cellular Events by Plasmonic Gold Nanoparticles: Implications and Opportunities for Biomedical Applications. ACS NANO 2017; 11:2403-2409. [PMID: 28300393 DOI: 10.1021/acsnano.7b01200] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Compared to traditional hyperthermia methods, gold nanoparticles (Au NPs) successfully achieve site-specific incremental temperature in deep tissues. By virtue of near-infrared (NIR) laser-mediated photothermal treatment, Au NPs have been widely explored in clinical and preclinical applications, including cancer therapy and tissue engineering. In this issue of ACS Nano, Suzuki, Ciofani, and colleagues demonstrate how gold nanoshells can remotely activate striated muscle cells via inducing myotube contraction and modulating related gene expression by mild heat stimulation under NIR irradiation. This Perspective provides a brief overview of the current developments and future outlook for multifunctional platforms based on Au NPs for cancer treatment, tissue engineering, and regenerative medicine.
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Affiliation(s)
- Jiayang Li
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China , Beijing 100090, China
| | - Jing Liu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China , Beijing 100090, China
| | - Chunying Chen
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China , Beijing 100090, China
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66
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Tagami T, Ozeki T. Recent Trends in Clinical Trials Related to Carrier-Based Drugs. J Pharm Sci 2017; 106:2219-2226. [PMID: 28259767 DOI: 10.1016/j.xphs.2017.02.026] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Revised: 02/07/2017] [Accepted: 02/13/2017] [Indexed: 02/06/2023]
Abstract
Clinical trials related to carrier-based drugs have recently attracted attention because carrier-based drugs hold promise for high efficiency drug delivery and for reducing drug-related side effects. In this commentary, we introduce recent clinical trials involving the use of various carriers, including liposomes, nano and micro particles, micelles, emulsions, and polymeric carriers. Liposomal drug carriers are currently the most intensively tested carriers in clinical trials, but other carriers such as polymeric carriers, albumin-based carriers, and metal nanocarriers have also recently been studied in clinical trials. Each carrier has specific properties, advantages, and disadvantages. The recent clinical trials introduced herein provide information critical to understanding current trends in carrier-based drug research.
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Affiliation(s)
- Tatsuaki Tagami
- Drug Delivery and Nano Pharmaceutics, Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-dori, Mizuho-ku, Nagoya, Aichi 467-8603, Japan
| | - Tetsuya Ozeki
- Drug Delivery and Nano Pharmaceutics, Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-dori, Mizuho-ku, Nagoya, Aichi 467-8603, Japan.
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67
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Wang Y, Liu X, Deng G, Wang Q, Zhang L, Wang Q, Lu J. Multifunctional PS@CS@Au–Fe3O4–FA nanocomposites for CT, MR and fluorescence imaging guided targeted-photothermal therapy of cancer cells. J Mater Chem B 2017; 5:4221-4232. [PMID: 32264152 DOI: 10.1039/c7tb00642j] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Multifunctional theranostic PS@CS@Au–Fe3O4–FA/ICG nanocomposites for MR, CT and fluorescence multiple-modal imaging-guided targeted photothermal therapy were fabricated, and they might be a promising theranostic nanoplatform for tumor diagnostics and treatment.
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Affiliation(s)
- Yeying Wang
- School of Chemistry and Chemical Engineering
- Shanghai University of Engineering Science
- Shanghai 201620
- P. R. China
| | - Xijian Liu
- School of Chemistry and Chemical Engineering
- Shanghai University of Engineering Science
- Shanghai 201620
- P. R. China
| | - Guoying Deng
- Trauma Center
- Shanghai General Hospital
- Shanghai Jiaotong University School of Medicine
- Shanghai 201620
- P. R. China
| | - Qian Wang
- Trauma Center
- Shanghai General Hospital
- Shanghai Jiaotong University School of Medicine
- Shanghai 201620
- P. R. China
| | - Lijuan Zhang
- School of Chemistry and Chemical Engineering
- Shanghai University of Engineering Science
- Shanghai 201620
- P. R. China
| | - Qiugen Wang
- Trauma Center
- Shanghai General Hospital
- Shanghai Jiaotong University School of Medicine
- Shanghai 201620
- P. R. China
| | - Jie Lu
- School of Chemistry and Chemical Engineering
- Shanghai University of Engineering Science
- Shanghai 201620
- P. R. China
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68
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Evangelopoulos M, Tasciotti E. Bioinspired approaches for cancer nanotheranostics. Nanomedicine (Lond) 2016; 12:5-7. [PMID: 27876435 DOI: 10.2217/nnm-2016-0374] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Affiliation(s)
- Michael Evangelopoulos
- Center for Biomimetic Medicine, Houston Methodist Research Institute, Houston, TX 77030, USA
| | - Ennio Tasciotti
- Center for Biomimetic Medicine, Houston Methodist Research Institute, Houston, TX 77030, USA.,Department of Orthopedics & Sports Medicine, Houston Methodist Hospital, Houston, TX 77030, USA
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69
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Gerasimov VS, Ershov AE, Gavrilyuk AP, Karpov SV, Ågren H, Polyutov SP. Suppression of surface plasmon resonance in Au nanoparticles upon transition to the liquid state. OPTICS EXPRESS 2016; 24:26851-26856. [PMID: 27857413 DOI: 10.1364/oe.24.026851] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Significant suppression of resonant properties of single gold nanoparticles at the surface plasmon frequency during heating and subsequent transition to the liquid state has been demonstrated experimentally and explained for the first time. The results for plasmonic absorption of the nanoparticles have been analyzed by means of Mie theory using experimental values of the optical constants for the liquid and solid metal. The good qualitative agreement between calculated and experimental spectra support the idea that the process of melting is accompanied by an abrupt increase of the relaxation constants, which depends, beside electron-phonon coupling, on electron scattering at a rising number of lattice defects in a particle upon growth of its temperature, and subsequent melting as a major cause for the observed plasmonic suppression. It is emphasized that observed effect is fully reversible and may underlie nonlinear optical responses of nanocolloids and composite materials containing plasmonic nanoparticles and their aggregates in conditions of local heating and in general, manifest itself in a wide range of plasmonics phenomena associated with strong heating of nanoparticles.
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