1
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Cao Y, Yang H, Li D, Li F, Ma J, Liu P. The effect of AS1411 surface density on the tumor targeting properties of PEGylated silver nanotriangles. Nanomedicine (Lond) 2022; 17:289-302. [PMID: 35060397 DOI: 10.2217/nnm-2021-0304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: To determine the optimal AS1411 density on polyethylene glycol (PEG)ylated silver nanotriangles (PNTs) for targeting breast cancer cells. Methods: PNTs modified with different AS1411 densities (ANTs) were constructed, characterized and evaluated for their targeting properties in breast cancer cells and a mouse model of breast cancer. Results: AS1411 was successfully conjugated to PNTs. The accumulation and cellular uptake of 10-ANTs were the highest. 10-ANTs plus near-IR laser irradiation displayed the greatest inhibitory effect on cell viability. However, 5-ANTs had the highest accumulation in tumor tissues. When combined with NIR laser, 5-ANTs exhibited the best in vivo photothermal therapy effect. Conclusion: The optimal AS1411 densities at the cellular and animal levels were 10% and 5%, respectively.
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Affiliation(s)
- Yuyu Cao
- School of Medicine, Southeast University, Nanjing, Jiangsu, People's Republic of China
| | - Huiquan Yang
- School of Medicine, Southeast University, Nanjing, Jiangsu, People's Republic of China
| | - Dongdong Li
- School of Medicine, Southeast University, Nanjing, Jiangsu, People's Republic of China
| | - Fan Li
- School of Medicine, Southeast University, Nanjing, Jiangsu, People's Republic of China
| | - Jing Ma
- School of Medicine, Southeast University, Nanjing, Jiangsu, People's Republic of China
| | - Peidang Liu
- School of Medicine, Southeast University, Nanjing, Jiangsu, People's Republic of China.,Jiangsu Key Laboratory for Biomaterials & Devices, Southeast University, Nanjing, Jiangsu, People's Republic of China
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2
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Agarose-based biomaterials for advanced drug delivery. J Control Release 2020; 326:523-543. [PMID: 32702391 DOI: 10.1016/j.jconrel.2020.07.028] [Citation(s) in RCA: 114] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 07/15/2020] [Accepted: 07/16/2020] [Indexed: 02/03/2023]
Abstract
Agarose is a prominent marine polysaccharide representing reversible thermogelling behavior, outstanding mechanical properties, high bioactivity, and switchable chemical reactivity for functionalization. As a result, agarose has received particular attention in the fabrication of advanced delivery systems as sophisticated carriers for therapeutic agents. The ever-growing use of agarose-based biomaterials for drug delivery systems resulted in rapid growth in the number of related publications, however still, a long way should be paved to achieve FDA approval for most of the proposed products. This review aims at a classification of agarose-based biomaterials and their derivatives applicable for controlled/targeted drug delivery purposes. Moreover, it attempts to deal with opportunities and challenges associated with the future developments ahead of agarose-based biomaterials in the realm of advanced drug delivery. Undoubtedly, this class of biomaterials needs further advancement, and a lot of critical questions have yet to be answered.
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3
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Biocompatible PLGA-Mesoporous Silicon Microspheres for the Controlled Release of BMP-2 for Bone Augmentation. Pharmaceutics 2020; 12:pharmaceutics12020118. [PMID: 32024134 PMCID: PMC7076394 DOI: 10.3390/pharmaceutics12020118] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Revised: 01/23/2020] [Accepted: 01/28/2020] [Indexed: 12/27/2022] Open
Abstract
Bone morphogenetic protein-2 (BMP-2) has been demonstrated to be one of the most vital osteogenic factors for bone augmentation. However, its uncontrolled administration has been associated with catastrophic side effects, which compromised its clinical use. To overcome these limitations, we aimed at developing a safer controlled and sustained release of BMP-2, utilizing poly(lactic-co-glycolic acid)-multistage vector composite microspheres (PLGA-MSV). The loading and release of BMP-2 from PLGA-MSV and its osteogenic potential in vitro and in vivo was evaluated. BMP-2 in vitro release kinetics was assessed by ELISA assay. It was found that PLGA-MSV achieved a longer and sustained release of BMP-2. Cell cytotoxicity and differentiation were evaluated in vitro by MTT and alkaline phosphatase (ALP) activity assays, respectively, with rat mesenchymal stem cells. The MTT results confirmed that PLGA-MSVs were not toxic to cells. ALP test demonstrated that the bioactivity of BMP-2 released from the PLGA-MSV was preserved, as it allowed for the osteogenic differentiation of rat mesenchymal stem cells, in vitro. The biocompatible, biodegradable, and osteogenic PLGA-MSVs system could be an ideal candidate for the safe use of BMP-2 in orthopedic tissue engineering applications.
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4
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Pasto A, Giordano F, Evangelopoulos M, Amadori A, Tasciotti E. Cell membrane protein functionalization of nanoparticles as a new tumor-targeting strategy. Clin Transl Med 2019; 8:8. [PMID: 30877412 PMCID: PMC6420595 DOI: 10.1186/s40169-019-0224-y] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Accepted: 03/08/2019] [Indexed: 02/06/2023] Open
Abstract
Nanoparticles have seen considerable popularity as effective tools for drug delivery. However, non-specific targeting continues to remain a challenge. Recently, biomimetic nanoparticles have emerged as an innovative solution that exploits biologically-derived components to improve therapeutic potential. Specifically, cell membrane proteins extracted from various cells (i.e., leukocytes, erythrocytes, platelets, mesenchymal stem cells, cancer) have shown considerable promise in bestowing nanoparticles with increased circulation and targeting efficacy. Traditional nanoparticles can be detected and removed by the immune system which significantly hinders their clinical success. Biomimicry has been proposed as a promising approach to overcome these limitations. In this review, we highlight the current trends in biomimetic nanoparticles and describe how they are being used to increase their chemotherapeutic effect in cancer treatment.
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Affiliation(s)
- Anna Pasto
- Veneto Institute of Oncology-IRCCS, Padua, Italy.,Center for Biomimetic Medicine, Houston Methodist Research Institute, 6670 Bertner Ave, Houston, TX, 77030, USA
| | - Federica Giordano
- School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy.,Center for Biomimetic Medicine, Houston Methodist Research Institute, 6670 Bertner Ave, Houston, TX, 77030, USA
| | - Michael Evangelopoulos
- Center for Biomimetic Medicine, Houston Methodist Research Institute, 6670 Bertner Ave, Houston, TX, 77030, USA
| | - Alberto Amadori
- Veneto Institute of Oncology-IRCCS, Padua, Italy.,Department of Surgery, Oncology and Gastroenterology, University of Padova, Padua, Italy
| | - Ennio Tasciotti
- Center for Biomimetic Medicine, Houston Methodist Research Institute, 6670 Bertner Ave, Houston, TX, 77030, USA. .,Houston Methodist Orthopedics and Sports Medicine, Houston Methodist Hospital, Houston, TX, USA.
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5
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Parodi A, Molinaro R, Sushnitha M, Evangelopoulos M, Martinez JO, Arrighetti N, Corbo C, Tasciotti E. Bio-inspired engineering of cell- and virus-like nanoparticles for drug delivery. Biomaterials 2017; 147:155-168. [PMID: 28946131 DOI: 10.1016/j.biomaterials.2017.09.020] [Citation(s) in RCA: 171] [Impact Index Per Article: 24.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 09/13/2017] [Accepted: 09/17/2017] [Indexed: 12/25/2022]
Abstract
The engineering of future generations of nanodelivery systems aims at the creation of multifunctional vectors endowed with improved circulation, enhanced targeting and responsiveness to the biological environment. Moving past purely bio-inert systems, researchers have begun to create nanoparticles capable of proactively interacting with the biology of the body. Nature offers a wide-range of sources of inspiration for the synthesis of more effective drug delivery platforms. Because the nano-bio-interface is the key driver of nanoparticle behavior and function, the modification of nanoparticles' surfaces allows the transfer of biological properties to synthetic carriers by imparting them with a biological identity. Modulation of these surface characteristics governs nanoparticle interactions with the biological barriers they encounter. Building off these observations, we provide here an overview of virus- and cell-derived biomimetic delivery systems that combine the intrinsic hallmarks of biological membranes with the delivery capabilities of synthetic carriers. We describe the features and properties of biomimetic delivery systems, recapitulating the distinctive traits and functions of viruses, exosomes, platelets, red and white blood cells. By mimicking these biological entities, we will learn how to more efficiently interact with the human body and refine our ability to negotiate with the biological barriers that impair the therapeutic efficacy of nanoparticles.
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Affiliation(s)
- Alessandro Parodi
- Department of Pharmacology, University of Illinois, Chicago College of Medicine, Chicago, IL, USA
| | - Roberto Molinaro
- Department of Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Manuela Sushnitha
- Center for Biomimetic Medicine, Houston Methodist Research Institute (HMRI), Houston, TX, USA; Department of Bioengineering, Rice University, Houston, TX, USA
| | - Michael Evangelopoulos
- Center for Biomimetic Medicine, Houston Methodist Research Institute (HMRI), Houston, TX, USA
| | - Jonathan O Martinez
- Center for Biomimetic Medicine, Houston Methodist Research Institute (HMRI), Houston, TX, USA
| | - Noemi Arrighetti
- Center for Biomimetic Medicine, Houston Methodist Research Institute (HMRI), Houston, TX, USA; Molecular Pharmacology Unit, Fondazione IRCCS Istituto Nazionale per Lo Studio e La Cura Dei Tumori, Milan, Italy
| | - Claudia Corbo
- Center for Nanomedicine, Brigham and Women's Hospital, Harvard Medical School, MA, USA
| | - Ennio Tasciotti
- Center for Biomimetic Medicine, Houston Methodist Research Institute (HMRI), Houston, TX, USA; Department of Orthopedics and Sports Medicine, Houston Methodist Hospital, Houston, TX, USA.
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6
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Minardi S, Pandolfi L, Taraballi F, Wang X, De Rosa E, Mills ZD, Liu X, Ferrari M, Tasciotti E. Enhancing Vascularization through the Controlled Release of Platelet-Derived Growth Factor-BB. ACS APPLIED MATERIALS & INTERFACES 2017; 9:14566-14575. [PMID: 28393518 DOI: 10.1021/acsami.6b13760] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Using delivery systems to control the in vivo release of growth factors (GFs) for tissue engineering applications is extremely desirable as the clinical use of GFs is limited by their fast in vivo turnover. Hence, the development of effective platforms that are able to finely control the release of GFs in vivo remains a challenge. Herein, we investigated the ability of multiscale microspheres, composed by a nanostructured silicon multistage vector (MSV) core and a poly(dl-lactide-co-glycolide) acid (PLGA) forming outer shell (PLGA-MSV), to release functional platelet-derived growth factor-BB (PDGF-BB) to induce in vivo localized neovascularization. The in vitro release of PDGF-BB was assessed by enzyme-linked immunosorbent assay (ELISA) over 2 weeks and showed a sustained, zero-order release kinetics. The ability to promote in vivo localized neovascularization was investigated in a subcutaneous injection model in BALB/c mice and followed by intravital microscopy up to 2 weeks. Fully functional newly formed vessels were found within the area where PLGA-MSVs were localized and covered 3.0 ± 0.9 and 19 ± 5.1% at 7 and 14 days, respectively, showing a 6-fold increase in 1 week. The distribution of CD31+ and α-SMA+ cells was detected by immunofluorescence on harvested tissues. CD31 was significantly more expressed (4-fold increase) compared to the untreated control. Finally, the level of up-regulation of angiogenesis-associated genes (Vegfa, Vwf, and Col3a1) was assessed by q-PCR, resulting in a significantly higher expression where PLGA-MSVs were localized (Vegfa: 2.32 ± 0.50 at 7 days and 4.37 ± 0.75 at 14 days; Vwf: 4.13 ± 0.82 and 7.74 ± 0.91; Col3a1: 5.43 ± 0.37 and 6.66 ± 0.89). Altogether, our data supported the conclusion that the localized delivery of PDGF-BB from PLGA-MSVs induced the localized de novo formation of fully functional vessels in vivo. With this study, we demonstrated that PLGA-MSV holds promise for accomplishing the controlled localized in vivo release of GFs for the design of innovative tissue engineering strategies.
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Affiliation(s)
| | - Laura Pandolfi
- College of Materials Science and Engineering, University of Chinese Academy of Science , 19A Yuquanlu, Beijing 100049, China
| | | | | | | | | | | | | | - Ennio Tasciotti
- Department of Orthopedics, Houston Methodist Hospital , 6565 Fannin Street, Houston, Texas 77030, United States
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7
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Wu SC, Wang C, Hansen D, Wong SL. A simple approach for preparation of affinity matrices: Simultaneous purification and reversible immobilization of a streptavidin mutein to agarose matrix. Sci Rep 2017; 7:42849. [PMID: 28220817 PMCID: PMC5318860 DOI: 10.1038/srep42849] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Accepted: 01/18/2017] [Indexed: 11/09/2022] Open
Abstract
SAVSBPM18 is an engineered streptavidin for affinity purification of both biotinylated biomolecules and recombinant proteins tagged with streptavidin binding peptide (SBP) tags. To develop a user-friendly approach for the preparation of the SAVSBPM18-based affinity matrices, a designer fusion protein containing SAVSBPM18 and a galactose binding domain was engineered. The galactose binding domain derived from the earthworm lectin EW29 was genetically modified to eliminate a proteolytic cleavage site located at the beginning of the domain. This domain was fused to the C-terminal end of SAVSBPM18. It allows the SAVSBPM18 fusions to bind reversibly to agarose and can serve as an affinity handle for purification of the fusion. Fluorescently labeled SAVSBPM18 fusions were found to be stably immobilized on Sepharose 6B-CL. The enhanced immobilization capability of the fusion to the agarose beads results from the avidity effect mediated by the tetrameric nature of SAVSBPM18. This approach allows the consolidation of purification and immobilization of SAVSBPM18 fusions to Sepharose 6B-CL in one step for affinity matrix preparation. The resulting affinity matrix has been successfully applied to purify both SBP tagged β-lactamase and biotinylated proteins. No significant reduction in binding capacity of the column was observed for at least six months.
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Affiliation(s)
- Sau-Ching Wu
- Department of Biological Sciences, University of Calgary, 2500 University Dr., N.W. Calgary, Alberta, T2N 1N4, Canada
| | - Chris Wang
- Department of Biological Sciences, University of Calgary, 2500 University Dr., N.W. Calgary, Alberta, T2N 1N4, Canada
| | - Dave Hansen
- Department of Biological Sciences, University of Calgary, 2500 University Dr., N.W. Calgary, Alberta, T2N 1N4, Canada
| | - Sui-Lam Wong
- Department of Biological Sciences, University of Calgary, 2500 University Dr., N.W. Calgary, Alberta, T2N 1N4, Canada
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8
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9
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Zhu G, Liu JT, Wang Y, Zhang D, Guo Y, Tasciotti E, Hu Z, Liu X. In Situ Reductive Synthesis of Structural Supported Gold Nanorods in Porous Silicon Particles for Multifunctional Nanovectors. ACS APPLIED MATERIALS & INTERFACES 2016; 8:11881-11891. [PMID: 27123698 DOI: 10.1021/acsami.6b03008] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Porous silicon nanodisks (PSD) were fabricated by the combination of photolithography and electrochemical etching of silicon. By using PSD as a reducing agent, gold nanorods (AuNR) were in situ synthesized in the nanopores of PSD, forming PSD-supported-AuNR (PSD/AuNR) hybrid particles. The formation mechanism of AuNR in porous silicon (pSi) was revealed by exploring the role of pSi reducibility and each chemical in the reaction. With the PSD support, AuNR exhibited a stable morphology without toxic surface ligands (CTAB). The PSD/AuNR hybrid particles showed enhanced plasmonic property compared to free AuNR. Because high-density "hot spots" can be generated by controlling the distribution of AuNR supported in PSD, surface-enhanced raman scattering (SERS) using PSD/AuNR as particle substrates was demonstrated. A multifunctional vector, PSD/AuNR/DOX, composed of doxorubicin (DOX)-loaded PSD/AuNR capped with agarose (agar), was developed for highly efficient, combinatorial cancer treatment. Their therapeutic efficacy was examined using two pancreatic cancer cell lines, PANC-1 and MIA PaCa-2. PSD/AuNR/DOX (20 μg Au and 1.25 μg DOX/mL) effectively destroyed these cells under near-IR laser irradiation (810 nm, 15 J·cm(-2) power, 90 s). Overall, we envision that PSD/AuNR may be a promising injectable, multifunctional nanovector for biomedical application.
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Affiliation(s)
- Guixian Zhu
- College of Materials Sciences and Optoelectronics, University of Chinese Academy of Sciences , Beijing 100049, China
- Department of Nanomedicine, Houston Methodist Research Institute , Houston, Texas 77030, United States
| | - Jen-Tsai Liu
- College of Materials Sciences and Optoelectronics, University of Chinese Academy of Sciences , Beijing 100049, China
| | - Yuzhen Wang
- Department of Nanomedicine, Houston Methodist Research Institute , Houston, Texas 77030, United States
| | - Dechen Zhang
- Department of Nanomedicine, Houston Methodist Research Institute , Houston, Texas 77030, United States
| | - Yi Guo
- Department of Nanomedicine, Houston Methodist Research Institute , Houston, Texas 77030, United States
| | - Ennio Tasciotti
- Department of Nanomedicine, Houston Methodist Research Institute , Houston, Texas 77030, United States
| | - Zhongbo Hu
- College of Materials Sciences and Optoelectronics, University of Chinese Academy of Sciences , Beijing 100049, China
| | - Xuewu Liu
- Department of Nanomedicine, Houston Methodist Research Institute , Houston, Texas 77030, United States
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10
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Pandolfi L, Minardi S, Taraballi F, Liu X, Ferrari M, Tasciotti E. Composite microsphere-functionalized scaffold for the controlled release of small molecules in tissue engineering. J Tissue Eng 2016; 7:2041731415624668. [PMID: 26977286 PMCID: PMC4765809 DOI: 10.1177/2041731415624668] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Accepted: 11/20/2015] [Indexed: 12/17/2022] Open
Abstract
Current tissue engineering strategies focus on restoring damaged tissue architectures using biologically active scaffolds. The ideal scaffold would mimic the extracellular matrix of any tissue of interest, promoting cell proliferation and de novo extracellular matrix deposition. A plethora of techniques have been evaluated to engineer scaffolds for the controlled and targeted release of bioactive molecules to provide a functional structure for tissue growth and remodeling, as well as enhance recruitment and proliferation of autologous cells within the implant. Recently, novel approaches using small molecules, instead of growth factors, have been exploited to regulate tissue regeneration. The use of small synthetic molecules could be very advantageous because of their stability, tunability, and low cost. Herein, we propose a chitosan-gelatin scaffold functionalized with composite microspheres consisting of mesoporous silicon microparticles and poly(dl-lactic-co-glycolic acid) for the controlled release of sphingosine-1-phospate, a small molecule of interest. We characterized the platform with scanning electron microscopy, Fourier transform infrared spectroscopy, and confocal microscopy. Finally, the biocompatibility of this multiscale system was analyzed by culturing human mesenchymal stem cells onto the scaffold. The presented strategy establishes the basis of a versatile scaffold for the controlled release of small molecules and for culturing mesenchymal stem cells for regenerative medicine applications.
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Affiliation(s)
- Laura Pandolfi
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX, USA
- College of Materials Science and Engineering, University of Chinese Academy of Science, Beijing, China
| | - Silvia Minardi
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX, USA
| | - Francesca Taraballi
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX, USA
| | - Xeuwu Liu
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX, USA
| | - Mauro Ferrari
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX, USA
| | - Ennio Tasciotti
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX, USA
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11
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Yazdi IK, Ziemys A, Evangelopoulos M, Martinez JO, Kojic M, Tasciotti E. Physicochemical properties affect the synthesis, controlled delivery, degradation and pharmacokinetics of inorganic nanoporous materials. Nanomedicine (Lond) 2015; 10:3057-3075. [DOI: 10.2217/nnm.15.133] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Controlling size, shape and uniformity of porous constructs remains a major focus of the development of porous materials. Over the past two decades, we have seen significant developments in the fabrication of new, porous-ordered structures using a wide range of materials, resulting in properties well beyond their traditional use. Porous materials have been considered appealing, due to attractive properties such as pore size length, morphology and surface chemistry. Furthermore, their utilization within the life sciences and medicine has resulted in significant developments in pharmaceutics and medical diagnosis. This article focuses on various classes of porous materials, providing an overview of principle concepts with regard to design and fabrication, surface chemistry and loading and release kinetics. Furthermore, predictions from a multiscale mathematical model revealed the role pore length and diameter could have on payload release kinetics.
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Affiliation(s)
- Iman K Yazdi
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030, USA
- Department of Biomedical Engineering, University of Houston, Houston, TX 77204, USA
| | - Arturas Ziemys
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030, USA
| | - Michael Evangelopoulos
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030, USA
| | - Jonathan O Martinez
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030, USA
| | - Milos Kojic
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030, USA
| | - Ennio Tasciotti
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030, USA
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12
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Minardi S, Pandolfi L, Taraballi F, De Rosa E, Yazdi IK, Liu X, Ferrari M, Tasciotti E. PLGA-Mesoporous Silicon Microspheres for the in Vivo Controlled Temporospatial Delivery of Proteins. ACS APPLIED MATERIALS & INTERFACES 2015; 7:16364-16373. [PMID: 26108253 DOI: 10.1021/acsami.5b03464] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In regenerative medicine, the temporospatially controlled delivery of growth factors (GFs) is crucial to trigger the desired healing mechanisms in the target tissues. The uncontrolled release of GFs has been demonstrated to cause severe side effects in the surrounding tissues. The aim of this study was to optimize a translational approach for the fine temporal and spatial control over the release of proteins, in vivo. Hence, we proposed a newly developed multiscale composite microsphere based on a core consisting of the nanostructured silicon multistage vector (MSV) and a poly(dl-lactide-co-glycolide) acid (PLGA) outer shell. Both of the two components of the resulting composite microspheres (PLGA-MSV) can be independently tailored to achieve multiple release kinetics contributing to the control of the release profile of a reporter protein in vitro. The influence of MSV shape (hemispherical or discoidal) and size (1, 3, or 7 μm) on PLGA-MSV's morphology and size distribution was investigated. Second, the copolymer ratio of the PLGA used to fabricate the outer shell of PLGA-MSV was varied. The composites were fully characterized by optical microscopy, scanning electron microscopy, ζ potential, Fourier transform infrared spectroscopy, and thermogravimetric analysis-differential scanning calorimetry, and their release kinetics over 30 days. PLGA-MSV's biocompatibility was assessed in vitro with J774 macrophages. Finally, the formulation of PLGA-MSV was selected, which concurrently provided the most consistent microsphere size and allowed for a zero-order release kinetic. The selected PLGA-MSVs were injected in a subcutaneous model in mice, and the in vivo release of the reporter protein was followed over 2 weeks by intravital microscopy, to assess if the zero-order release was preserved. PLGA-MSV was able to retain the payload over 2 weeks, avoiding the initial burst release typical of most drug delivery systems. Finally, histological evaluation assessed the biocompatibility of the platform in vivo.
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Affiliation(s)
- Silvia Minardi
- †Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Avenue, Houston, Texas 77030, United States
- ‡Institute of Science and Technology for Ceramics, National Research Council of Italy, Via Granarolo 64, 48018 Faenza, Ravenna, Italy
| | - Laura Pandolfi
- †Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Avenue, Houston, Texas 77030, United States
- §College of Materials Science and Engineering, University of Chinese Academy of Science, 19A Yuquanlu, Beijing 100049, China
| | - Francesca Taraballi
- †Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Avenue, Houston, Texas 77030, United States
| | - Enrica De Rosa
- †Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Avenue, Houston, Texas 77030, United States
| | - Iman K Yazdi
- †Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Avenue, Houston, Texas 77030, United States
| | - Xeuwu Liu
- †Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Avenue, Houston, Texas 77030, United States
| | - Mauro Ferrari
- †Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Avenue, Houston, Texas 77030, United States
| | - Ennio Tasciotti
- †Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Avenue, Houston, Texas 77030, United States
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13
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Minardi S, Sandri M, Martinez JO, Yazdi IK, Liu X, Ferrari M, Weiner BK, Tampieri A, Tasciotti E. Multiscale patterning of a biomimetic scaffold integrated with composite microspheres. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2014; 10:3943-53. [PMID: 24867543 PMCID: PMC4192098 DOI: 10.1002/smll.201401211] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2014] [Indexed: 05/02/2023]
Abstract
The ideal scaffold for regenerative medicine should concurrently mimic the structure of the original tissue from the nano- up to the macroscale and recapitulate the biochemical composition of the extracellular matrix (ECM) in space and time. In this study, a multiscale approach is followed to selectively integrate different types of nanostructured composite microspheres loaded with reporter proteins, in a multi-compartment collagen scaffold. Through the preservation of the structural cues of the functionalized collagen scaffold at the nano- and microscale, its macroscopic features (pore size, porosity, and swelling) are not altered. Additionally, the spatial confinement of the microspheres allows the release of the reporter proteins in each of the layers of the scaffold. Finally, the staged and zero-order release kinetics enables the temporal biochemical patterning of the scaffold. The versatile manufacturing of each component of the scaffold results in the ability to customize it to better mimic the architecture and composition of the tissues and biological systems.
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Affiliation(s)
- Silvia Minardi
- Department of Bioceramics and Bio-hybrid materials, National Research Council of Italy – ISTEC, Via Granarolo 64, 48018, Faenza RA, Italy
- Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Ave. Houston, TX 77030 (USA)
| | - Monica Sandri
- Department of Bioceramics and Bio-hybrid materials, National Research Council of Italy – ISTEC, Via Granarolo 64, 48018, Faenza RA, Italy
| | - Jonathan O. Martinez
- Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Ave. Houston, TX 77030 (USA)
- Graduate School of Biomedical Sciences, University of Texas Health Science Center at Houston, 6767 Bertner Ave; Houston, TX 77030 (USA), Houston, TX USA
| | - Iman K. Yazdi
- Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Ave. Houston, TX 77030 (USA)
- Department of Biomedical Engineering, University of Houston, Houston, TX USA
| | - Xeuwu Liu
- Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Ave. Houston, TX 77030 (USA)
| | - Mauro Ferrari
- Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Ave. Houston, TX 77030 (USA)
| | - Bradley K. Weiner
- Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Ave. Houston, TX 77030 (USA)
- Department of Orthopedic Surgery Weill Cornell Medical College, The Methodist Hospital, 6550 Fannin St. 77030, Houston TX, USA
| | - Anna Tampieri
- Department of Bioceramics and Bio-hybrid materials, National Research Council of Italy – ISTEC, Via Granarolo 64, 48018, Faenza RA, Italy
| | - Ennio Tasciotti
- Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Ave. Houston, TX 77030 (USA)
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Martinez JO, Evangelopoulos M, Karun V, Shegog E, Wang JA, Boada C, Liu X, Ferrari M, Tasciotti E. The effect of multistage nanovector targeting of VEGFR2 positive tumor endothelia on cell adhesion and local payload accumulation. Biomaterials 2014; 35:9824-9832. [PMID: 25176066 DOI: 10.1016/j.biomaterials.2014.08.024] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Accepted: 08/13/2014] [Indexed: 11/29/2022]
Abstract
Nanovectors are a viable solution to the formulation of poorly soluble anticancer drugs. Their bioaccumulation in the tumor parenchyma is mainly achieved exploiting the enhanced permeability and retention (EPR) effect of the leaky neovasculature. In this paper we demonstrate that multistage nanovectors (MSV) exhibit rapid tumoritropic homing independent of EPR, relying on particle geometry and surface adhesion. By studying endothelial cells overexpressing vascular endothelial growth factor receptor-2 (VEGFR2), we developed MSV able to preferentially target VEGFR2 expressing tumor-associated vessels. Static and dynamic targeting revealed that MSV conjugated with anti-VEGFR2 antibodies displayed greater than a 4-fold increase in targeting efficiency towards VEGFR2 expressing cells while exhibiting minimal adherence to control cells. Additionally, VEGFR2 conjugation bestowed MSV with a significant increase in breast tumor targeting and in the delivery of a model payload while decreasing their accumulation in the liver. Surface functionalization with an anti-VEGFR2 antibody provided enhanced affinity towards the tumor vascular endothelium, which promoted enhanced adhesion and tumoritropic accumulation of a reporter molecule released by the MSV.
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Affiliation(s)
- Jonathan O Martinez
- Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Ave., Houston, TX 77030, USA; Graduate School of Biomedical Sciences, University of Texas Health Science Center, 6767 Bertner Ave., Houston, TX 77030, USA
| | - Michael Evangelopoulos
- Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Ave., Houston, TX 77030, USA
| | - Vivek Karun
- Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Ave., Houston, TX 77030, USA
| | - Evan Shegog
- Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Ave., Houston, TX 77030, USA
| | - Joshua A Wang
- Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Ave., Houston, TX 77030, USA
| | - Christian Boada
- Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Ave., Houston, TX 77030, USA; Escuela de Medicina y Ciencias de la Salud, Tecnológico de Monterrey, 3000 Ave. Morones Prieto Esquina Con Dr. Cantú, Monterrey, Nuevo León, México
| | - Xuewu Liu
- Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Ave., Houston, TX 77030, USA
| | - Mauro Ferrari
- Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Ave., Houston, TX 77030, USA
| | - Ennio Tasciotti
- Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Ave., Houston, TX 77030, USA.
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15
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Kallinen AM, Sarparanta MP, Liu D, Mäkilä EM, Salonen JJ, Hirvonen JT, Santos HA, Airaksinen AJ. In Vivo Evaluation of Porous Silicon and Porous Silicon Solid Lipid Nanocomposites for Passive Targeting and Imaging. Mol Pharm 2014; 11:2876-86. [DOI: 10.1021/mp500225b] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Annukka M. Kallinen
- Laboratory
of Radiochemistry, Department of Chemistry, University of Helsinki, FI-00014 Helsinki, Finland
| | - Mirkka P. Sarparanta
- Laboratory
of Radiochemistry, Department of Chemistry, University of Helsinki, FI-00014 Helsinki, Finland
| | - Dongfei Liu
- 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
| | - 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
| | - Anu J. Airaksinen
- Laboratory
of Radiochemistry, Department of Chemistry, University of Helsinki, FI-00014 Helsinki, Finland
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16
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Yazdi IK, Murphy MB, Loo C, Liu X, Ferrari M, Weiner BK, Tasciotti E. Cefazolin-loaded mesoporous silicon microparticles show sustained bactericidal effect against Staphylococcus aureus. J Tissue Eng 2014; 5:2041731414536573. [PMID: 24904728 PMCID: PMC4046808 DOI: 10.1177/2041731414536573] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Accepted: 04/28/2014] [Indexed: 12/19/2022] Open
Abstract
Cefazolin is an antibiotic frequently used in preoperative prophylaxis of orthopedic surgery and to fight secondary infections post-operatively. Although its systemic delivery in a bulk or bolus dose is usually effective, the local and controlled release can increase its effectiveness by lowering dosages, minimizing total drug exposure, abating the development of antibiotic resistance and avoiding the cytotoxic effect. A delivery system based on mesoporous silicon microparticles was developed that is capable of efficiently loading and continuously releasing cefazolin over several days. The in vitro release kinetics from mesoporous silicon microparticles with three different nanopore sizes was evaluated, and minimal inhibitory concentration of cefazolin necessary to eliminate a culture of Staphylococcus aureus was identified to be 250 µg/mL. A milder toxicity toward mesenchymal stem cells was observed from mesoporous silicon microparticles over a 7-day period. Medium pore size-loaded mesoporous silicon microparticles exhibited long-lasting bactericidal properties in a zone inhibition assay while they were able to kill all the bacteria growing in suspension cultures within 24 h. This study demonstrates that the sustained release of cefazolin from mesoporous silicon microparticles provides immediate and long-term control over bacterial growth both in suspension and adhesion while causing minimal toxicity to a population of mesenchymal stem cell. Mesoporous silicon microparticles offer significant advantageous properties for drug delivery applications in tissue engineering as it favorably extends drug bioavailability and stability, while reducing concomitant cytotoxicity to the surrounding tissues.
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Affiliation(s)
- Iman K Yazdi
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX, USA ; Department of Biomedical Engineering, University of Houston, Houston, TX, USA
| | - Matthew B Murphy
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX, USA
| | - Christopher Loo
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX, USA
| | - Xuewu Liu
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX, USA
| | - Mauro Ferrari
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX, USA
| | - Bradley K Weiner
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX, USA ; Department of Orthopedic Surgery, Houston Methodist Hospital, Houston, TX, USA
| | - Ennio Tasciotti
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX, USA
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17
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Abstract
Porous silicon (pSi) is a nanostructured carrier system that has received considerable attention over the past 10 years, for use in a wide variety of biomedical applications, including biosensing, biomedical imaging, tissue scaffolds and drug delivery. This interest is due to several key features of pSi, including excellent in vivo biocompatibility, the ease of surface chemistry modification and the control over its 3D porous network structure. With control of these physical parameters pSi has successfully been used for the delivery of a variety of therapeutics, ranging from small-molecule drugs to larger peptide/protein-type therapeutics. In this review, the authors provide a brief overview of pSi fabrication methods, particularly with regard to the need to passivate the highly reactive Si-Hx surface species of native pSi, typically via thermal oxidation, hydrocarbonization or hydrosilylation. This surface modification, in turn, controls both the loading and release of therapeutics. The authors will then report on specific case studies of leading examples on the use of pSi as a therapeutic-delivery system. Specifically, the first reported in vivo study that demonstrated the use of pSi to improve the delivery of a Biopharmaceutical Classification System Class 2 poorly soluble drug (indomethacin), by using thermally oxidized pSi, is discussed, as well as highlighting a study that determined the biodistribution of 18F-radiolabeled thermally hydrocarbonized pSi after oral dosing. The authors also report on the development of composite pSi–poly(D,L-lactide-co-glycolide) microparticles for the controlled delivery of protein therapeutics. Finally, the use of pSi in the delivery of bioactives, such as the successful use of thermally carbonized pSi to deliver Melanotan II, an unspecific agonist for the melanocortin receptors that are involved in controlling fluid uptake is discussed. With a growing body of literature reporting the successful use of pSi to deliver a range of therapeutics, we are entering what may be a golden age for this drug-delivery system, which may finally see the long-held promises finally achieved.
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18
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Fine D, Grattoni A, Goodall R, Bansal SS, Chiappini C, Hosali S, van de Ven AL, Srinivasan S, Liu X, Godin B, Brousseau L, Yazdi IK, Fernandez-Moure J, Tasciotti E, Wu HJ, Hu Y, Klemm S, Ferrari M. Silicon micro- and nanofabrication for medicine. Adv Healthc Mater 2013; 2:632-66. [PMID: 23584841 PMCID: PMC3777663 DOI: 10.1002/adhm.201200214] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2012] [Revised: 08/31/2012] [Indexed: 12/13/2022]
Abstract
This manuscript constitutes a review of several innovative biomedical technologies fabricated using the precision and accuracy of silicon micro- and nanofabrication. The technologies to be reviewed are subcutaneous nanochannel drug delivery implants for the continuous tunable zero-order release of therapeutics, multi-stage logic embedded vectors for the targeted systemic distribution of both therapeutic and imaging contrast agents, silicon and porous silicon nanowires for investigating cellular interactions and processes as well as for molecular and drug delivery applications, porous silicon (pSi) as inclusions into biocomposites for tissue engineering, especially as it applies to bone repair and regrowth, and porous silica chips for proteomic profiling. In the case of the biocomposites, the specifically designed pSi inclusions not only add to the structural robustness, but can also promote tissue and bone regrowth, fight infection, and reduce pain by releasing stimulating factors and other therapeutic agents stored within their porous network. The common material thread throughout all of these constructs, silicon and its associated dielectrics (silicon dioxide, silicon nitride, etc.), can be precisely and accurately machined using the same scalable micro- and nanofabrication protocols that are ubiquitous within the semiconductor industry. These techniques lend themselves to the high throughput production of exquisitely defined and monodispersed nanoscale features that should eliminate architectural randomness as a source of experimental variation thereby potentially leading to more rapid clinical translation.
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Affiliation(s)
- Daniel Fine
- Department of Nanomedicine, The Methodist Hospital Research Institute, Houston, TX 77030, USA.
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Martinez JO, Brown BS, Quattrocchi N, Evangelopoulos M, Ferrari M, Tasciotti E. Multifunctional to multistage delivery systems: The evolution of nanoparticles for biomedical applications. CHINESE SCIENCE BULLETIN-CHINESE 2012; 57:3961-3971. [PMID: 24587616 PMCID: PMC3938208 DOI: 10.1007/s11434-012-5387-5] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Nanomaterials are advancing in several directions with significant progress being achieved with respect to their synthesis, functionalization and biomedical application. In this review, we will describe several classes of prototypical nanocarriers, such as liposomes, silicon particles, and gold nanoshells, in terms of their individual function as well as their synergistic use. Active and passive targeting, photothermal ablation, and drug controlled release constitute some of the crucial functions identified to achieve a medical purpose. Current limitations in targeting, slow clearance, and systemic as well as local toxicity are addressed in reference to the recent studies that attempted to comprehend and solve these issues. The demand for a more sophisticated understanding of the impact of nanomaterialson the body and of their potential immune response underlies this discussion. Combined components are then discussed in the setting of multifunctional nanocarriers, a class of drug delivery systems we envisioned, proposed, and evolved in the last 5 years. In particular, our third generation of nanocarriers, the multistage vectors, usher in the new field of nanomedicine by combining several components onto multifunctional nanocarriers characterized by emerging properties and able to achieve synergistic effects.
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Affiliation(s)
- Jonathan O. Martinez
- Department of Nanomedicine, The Methodist Hospital Research Institute, Houston, TX, USA
- Graduate School of Biomedical Sciences, The University of Texas at Houston, Houston, TX, USA
| | - Brandon S. Brown
- Department of Nanomedicine, The Methodist Hospital Research Institute, Houston, TX, USA
- Graduate School of Biomedical Sciences, The University of Texas at Houston, Houston, TX, USA
| | - Nicoletta Quattrocchi
- Department of Nanomedicine, The Methodist Hospital Research Institute, Houston, TX, USA
| | | | - Mauro Ferrari
- Department of Nanomedicine, The Methodist Hospital Research Institute, Houston, TX, USA
| | - Ennio Tasciotti
- Department of Nanomedicine, The Methodist Hospital Research Institute, Houston, TX, USA
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20
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Kaasalainen M, Mäkilä E, Riikonen J, Kovalainen M, Järvinen K, Herzig KH, Lehto VP, Salonen J. Effect of isotonic solutions and peptide adsorption on zeta potential of porous silicon nanoparticle drug delivery formulations. Int J Pharm 2012; 431:230-6. [DOI: 10.1016/j.ijpharm.2012.04.059] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2012] [Revised: 04/20/2012] [Accepted: 04/21/2012] [Indexed: 10/28/2022]
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21
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Mesoporous Silicon (PSi) for Sustained Peptide Delivery: Effect of PSi Microparticle Surface Chemistry on Peptide YY3-36 Release. Pharm Res 2011; 29:837-46. [DOI: 10.1007/s11095-011-0611-6] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2011] [Accepted: 10/17/2011] [Indexed: 11/27/2022]
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