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Vikas, Sahu HK, Mehata AK, Viswanadh MK, Priya V, Muthu MS. Dual-receptor-targeted nanomedicines: emerging trends and advances in lung cancer therapeutics. Nanomedicine (Lond) 2022; 17:1375-1395. [PMID: 36317852 DOI: 10.2217/nnm-2021-0470] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Cancer is the leading cause of mortality worldwide. Among all cancer types, lung cancer is recognized as the most lethal and highly metastatic. The application of targeted nanomedicine loaded with anticancer drugs is highly desirable for successful lung cancer treatment. However, due to the heterogenicity and complexity of lung cancer, the therapeutic effectiveness of a single receptor targeting nanomedicine is unfortunately limited. Therefore, the concept of dual-receptor-targeted nanomedicine is an emerging trend for the advancement in lung cancer therapeutics. In this review, the authors discuss various single- and dual-receptor-targeted nanomedicines that have been developed for lung cancer treatment. Furthermore, the authors also discussed all the types of receptors that can be utilized in combination for the development of dual-receptor-targeted nanomedicines.
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Affiliation(s)
- Vikas
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh, 221005, India
| | - Hemendra Kumar Sahu
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh, 221005, India
| | - Abhishesh Kumar Mehata
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh, 221005, India
| | - Matte Kasi Viswanadh
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh, 221005, India
| | - Vishnu Priya
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh, 221005, India
| | - Madaswamy S Muthu
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh, 221005, India
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Lai H, Zhong L, Huang Y, Zhao Y, Qian Z. Progress in Application of Nanotechnology in Sorafenib. J Biomed Nanotechnol 2021; 17:529-557. [DOI: 10.1166/jbn.2021.3061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Dysregulation of the tyrosine kinase signaling pathway is closely related to tumor development, and tyrosine kinase inhibitors are important targets for potential anticancer strategies. In particular, sorafenib, as a representative drug of multitarget tyrosine kinase inhibitors, has
an important clinical status and is widely used for treating various solid tumors and diabetic complications. However, poor aqueous solubility of sorafenib, poor bioavailability of commonly used oral dose forms, poor accumulation at tumor sites, and severe off-target effects that tend to induce
intolerable systemic side effects in patients have greatly reduced its therapeutic efficiency and limited its extensive clinical application. To improve the properties of sorafenib, increase the efficiency of clinical treatment, and overcome the increasingly prominent phenomenon of sorafenib
resistance, multiple investigations have been conducted. Numerous studies have reported that the properties of nanomaterials, such as small particle size, large specific surface area, high surface activity and high adsorption capacity, make nanotechnology promising for the construction of
ideal sorafenib nanodelivery systems to achieve timed and targeted delivery of sorafenib to tumors, prolong the blood circulation time of the drug, improve the utilization efficiency of the drug and reduce systemic toxic side effects. This review summarizes the progress of research applications
in nanotechnology related to sorafenib, discusses the current problems, and expresses expectations for the prospect of clinical applications of sorafenib with improved performance.
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Affiliation(s)
- Huili Lai
- National Center for International Research of Bio-Targeting Theranostics, Guangxi Key Laboratory of Bio-targeting Theranostics, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Talent Highland of Bio-Targeting
Theranostics, Guangxi Medical University, Nanning, Guangxi, 530021, China
| | - Liping Zhong
- National Center for International Research of Bio-Targeting Theranostics, Guangxi Key Laboratory of Bio-targeting Theranostics, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Talent Highland of Bio-Targeting
Theranostics, Guangxi Medical University, Nanning, Guangxi, 530021, China
| | - Yong Huang
- National Center for International Research of Bio-Targeting Theranostics, Guangxi Key Laboratory of Bio-targeting Theranostics, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Talent Highland of Bio-Targeting
Theranostics, Guangxi Medical University, Nanning, Guangxi, 530021, China
| | - Yongxiang Zhao
- National Center for International Research of Bio-Targeting Theranostics, Guangxi Key Laboratory of Bio-targeting Theranostics, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Talent Highland of Bio-Targeting
Theranostics, Guangxi Medical University, Nanning, Guangxi, 530021, China
| | - Zhiyong Qian
- National Center for International Research of Bio-Targeting Theranostics, Guangxi Key Laboratory of Bio-targeting Theranostics, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Talent Highland of Bio-Targeting
Theranostics, Guangxi Medical University, Nanning, Guangxi, 530021, China
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Izci M, Maksoudian C, Manshian BB, Soenen SJ. The Use of Alternative Strategies for Enhanced Nanoparticle Delivery to Solid Tumors. Chem Rev 2021; 121:1746-1803. [PMID: 33445874 PMCID: PMC7883342 DOI: 10.1021/acs.chemrev.0c00779] [Citation(s) in RCA: 195] [Impact Index Per Article: 65.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Indexed: 02/08/2023]
Abstract
Nanomaterial (NM) delivery to solid tumors has been the focus of intense research for over a decade. Classically, scientists have tried to improve NM delivery by employing passive or active targeting strategies, making use of the so-called enhanced permeability and retention (EPR) effect. This phenomenon is made possible due to the leaky tumor vasculature through which NMs can leave the bloodstream, traverse through the gaps in the endothelial lining of the vessels, and enter the tumor. Recent studies have shown that despite many efforts to employ the EPR effect, this process remains very poor. Furthermore, the role of the EPR effect has been called into question, where it has been suggested that NMs enter the tumor via active mechanisms and not through the endothelial gaps. In this review, we provide a short overview of the EPR and mechanisms to enhance it, after which we focus on alternative delivery strategies that do not solely rely on EPR in itself but can offer interesting pharmacological, physical, and biological solutions for enhanced delivery. We discuss the strengths and shortcomings of these different strategies and suggest combinatorial approaches as the ideal path forward.
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Affiliation(s)
- Mukaddes Izci
- NanoHealth
and Optical Imaging Group, Translational Cell and Tissue Research
Unit, Department of Imaging and Pathology, KU Leuven, Herestraat 49, B3000 Leuven, Belgium
| | - Christy Maksoudian
- NanoHealth
and Optical Imaging Group, Translational Cell and Tissue Research
Unit, Department of Imaging and Pathology, KU Leuven, Herestraat 49, B3000 Leuven, Belgium
| | - Bella B. Manshian
- Translational
Cell and Tissue Research Unit, Department of Imaging and Pathology, KU Leuven, Herestraat 49, B3000 Leuven, Belgium
| | - Stefaan J. Soenen
- NanoHealth
and Optical Imaging Group, Translational Cell and Tissue Research
Unit, Department of Imaging and Pathology, KU Leuven, Herestraat 49, B3000 Leuven, Belgium
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4
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Wang X, Li Y, Wang D, Wang X, Yuan W, Zhao W, Xia G. Evaluation of antitumor efficacy of folate-poly(2-ethyl-2-oxazoline)-distearoyl phosphatidyl ethanolamine based liposome. Pharm Dev Technol 2020; 26:110-118. [PMID: 33104406 DOI: 10.1080/10837450.2020.1842885] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
This study aims to explore and evaluate the antitumor efficacy of doxorubicin (DOX)-loaded liposomes containing the novel tri-block polymer folate-poly (2-ethyl-2-oxazoline)-distearoyl phosphatidyl ethanolamine (F-PEOz-DSPE), compared with folate-polyethylene glycol-distearoyl phosphatidyl ethanolamine (F-PEG-DSPE) to offer an alternative for PEG decorated carriers. PEOz, a pH-sensitive polymer, exhibits similar solubility and segmental flexibility to PEG. In our previous study, PEOz was employed to an F-PEOz-DSPE which was segmentally similar to F-PEG-DSPE and exhibited selective targeting and pH-sensitivity in tumor cells. In this work, DOX-loaded liposomes containing F-PEOz-DSPE (F-PEOz liposome) or F-PEG-DSPE (F-PEG liposome) were prepared. In vivo/vitro antitumor efficacy and biodistribution were compared between the two liposomes. F-PEOz liposome showed higher in vitro antitumor activity and significantly stronger inhibition of tumor growth in HeLa tumor-bearing nude mice (tumor inhibition rate, 81.20 vs 52.99% with the treatment of 9 mg/kg DOX-loaded F-PEOz liposome/F-PEG liposome) and much less toxicity than free DOX. In vivo fluorescence imaging experiment confirmed that F-PEOz liposome accumulated much more than F-PEG liposome in tumor. Based on the above, F-PEOz liposome may be a promising carrier in tumor chemotherapy to achieve better therapeutic efficacy.
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Affiliation(s)
- Xiaowei Wang
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, P. R. China
| | - Yunfei Li
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, P. R. China
| | - Dan Wang
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, P. R. China
| | - Xuelei Wang
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, P. R. China
| | - Wei Yuan
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, P. R. China
| | - Wuli Zhao
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, P. R. China
| | - Guimin Xia
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, P. R. China
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Souto EB, Doktorovova S, Campos JR, Martins-Lopes P, Silva AM. Surface-tailored anti-HER2/neu-solid lipid nanoparticles for site-specific targeting MCF-7 and BT-474 breast cancer cells. Eur J Pharm Sci 2019; 128:27-35. [DOI: 10.1016/j.ejps.2018.11.022] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 11/06/2018] [Accepted: 11/19/2018] [Indexed: 11/26/2022]
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6
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Li X, Wang D, Ran H, Hao L, Cao Y, Ao M, Zhang N, Song J, Zhang L, Yi H, Wang Z, Li P. A preliminary study of photoacoustic/ultrasound dual-mode imaging in melanoma using MAGE-targeted gold nanoparticles. Biochem Biophys Res Commun 2018; 502:255-261. [PMID: 29802849 DOI: 10.1016/j.bbrc.2018.05.155] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 05/22/2018] [Indexed: 11/29/2022]
Abstract
Nanoprobes are small enough to circulate within the vasculature and can reach tumour tissues through the endothelial gap, providing a new strategy for accurate tumour monitoring and imaging-guided antitumour therapy at the molecular level. Both photoacoustic and ultrasonic imaging are noninvasive tools for cancer detection via the application of nanoprobes. In this study, a polymeric multifunctional nanoparticle probe loaded with gold nanorods (Au-NRs) and liquid perfluorocarbon (perfluorinated hexane/PFH) and conjugated to a monoclonal antibody (MAGE-1 antibody) to melanoma-associated antigens (MAGE) targeting melanoma was successfully prepared by the double emulsion and carbodiimide methods as a targeted photoacoustic/ultrasound dual-mode imaging contrast agent (MAGE-Au-PFH-NPs). Cell-targeting experiments in vitro showed large amounts of MAGE-Au-PFH-NPs surrounding B16 melanoma cells in the targeted group. The photoacoustic signal in the targeted group was significantly increased, and the duration was longer than that in the untargeted group in vivo. The photoacoustic signal of the nanoprobes was enhanced with increased Au-NR concentration in the photoacoustic experiment in vitro. The enhanced signal was observed by ultrasound after 808-nm laser irradiation. A cytotoxicity and biocompatibility test showed that MAGE-Au-PFH-NPs exhibited good biological safety. The MAGE-Au-PFH-NPs can be used as a photoacoustic/ultrasound dual-mode contrast agent to lay the foundation for a promising new approach for the noninvasive targeting, monitoring and treatment of tumours.
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Affiliation(s)
- Xuelin Li
- Institute of Ultrasound ImagingofChongqing Medical University, Chongqing Key Laboratory of Ultrasound Molecular Imaging, Chongqing, 400010, China
| | - Dong Wang
- The First Affiliated Hospital of Chongqing Medical University, Department of Ultrasound, Chongqing 400016, China
| | - Haitao Ran
- Institute of Ultrasound ImagingofChongqing Medical University, Chongqing Key Laboratory of Ultrasound Molecular Imaging, Chongqing, 400010, China
| | - Lan Hao
- Institute of Ultrasound ImagingofChongqing Medical University, Chongqing Key Laboratory of Ultrasound Molecular Imaging, Chongqing, 400010, China
| | - Yang Cao
- Institute of Ultrasound ImagingofChongqing Medical University, Chongqing Key Laboratory of Ultrasound Molecular Imaging, Chongqing, 400010, China
| | - Meng Ao
- Institute of Ultrasound ImagingofChongqing Medical University, Chongqing Key Laboratory of Ultrasound Molecular Imaging, Chongqing, 400010, China
| | - Nan Zhang
- Institute of Ultrasound ImagingofChongqing Medical University, Chongqing Key Laboratory of Ultrasound Molecular Imaging, Chongqing, 400010, China
| | - Jiao Song
- Institute of Ultrasound ImagingofChongqing Medical University, Chongqing Key Laboratory of Ultrasound Molecular Imaging, Chongqing, 400010, China
| | - Liang Zhang
- Institute of Ultrasound ImagingofChongqing Medical University, Chongqing Key Laboratory of Ultrasound Molecular Imaging, Chongqing, 400010, China
| | - Hengjing Yi
- Institute of Ultrasound ImagingofChongqing Medical University, Chongqing Key Laboratory of Ultrasound Molecular Imaging, Chongqing, 400010, China
| | - Zhigang Wang
- Institute of Ultrasound ImagingofChongqing Medical University, Chongqing Key Laboratory of Ultrasound Molecular Imaging, Chongqing, 400010, China.
| | - Pan Li
- Institute of Ultrasound ImagingofChongqing Medical University, Chongqing Key Laboratory of Ultrasound Molecular Imaging, Chongqing, 400010, China.
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Lai WF, Rogach AL, Wong WT. Molecular design of upconversion nanoparticles for gene delivery. Chem Sci 2017; 8:7339-7358. [PMID: 29163885 PMCID: PMC5672820 DOI: 10.1039/c7sc02956j] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Accepted: 08/29/2017] [Indexed: 12/17/2022] Open
Abstract
Due to their large anti-Stokes shifts, sharp emission spectra and long excited-state lifetimes, upconversion nanoparticles (UCNPs) have attracted an increasing amount of research interests, and have shown great potential for enhancing the practical utility of gene therapy, whose versatility has been limited by existing gene delivery technologies that are basically mono-functional in nature. Despite this, up to now in-depth analysis of the development of UCNPs for gene delivery has been scant in the literature, even though there has been an upsurge of reviews on the chemistry of UCNPs and their applications in bioimaging and drug delivery. To fill this gap, this review aims to present the latest advances in the development and applications of UCNPs as gene carriers. Prior to describing the prominent works published in the field, a critical view on the properties, chemistry and molecular design of UCNPs for gene delivery is provided. With a synopsis of the recent advances in UCNP-mediated gene delivery, challenges and opportunities could be illuminated for clinical translation of works in this nascent field of research.
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Affiliation(s)
- Wing-Fu Lai
- School of Pharmaceutical Sciences , Health Science Centre , Shenzhen University , Shenzhen , China
- Department of Applied Biology & Chemical Technology , The Hong Kong Polytechnic University , Hong Kong . ;
| | - Andrey L Rogach
- Department of Materials Science and Engineering & Centre for Functional Photonics (CFP) , City University of Hong Kong , Hong Kong
| | - Wing-Tak Wong
- Department of Applied Biology & Chemical Technology , The Hong Kong Polytechnic University , Hong Kong . ;
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Dube B, Pandey A, Joshi G, Sawant K. Hydrophobically modified polyethylenimine-based ternary complexes for targeting brain tumor: stability, in vitro and in vivo studies. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2017; 45:1685-1698. [PMID: 28278583 DOI: 10.1080/21691401.2017.1282497] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Hydrophobic modification of low molecular weight polyethylenimine (PEI 2 kDa) by cholic acid (ChA) was done to obtain PEI2-ChA. The nanoplexes of PEI2-ChA with gWIZ-GFP demonstrated increase transfection efficiency (∼27%) in NT8e cell lines. The cell-cycle analysis of NT8e cells (p53 mutant) treated with transferrin containing nanoplexes showed increased apoptosis of cells. In vitro protein expression revealed expression of exogenous p53 protein. In vivo imaging of mice showed localized signal for GFP protein in brain region. The tumors of mice treated with transferrin containing nanoplexes of PEI2-ChA were ∼5 times smaller in size than the tumor of untreated animals.
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Affiliation(s)
- Brahmanand Dube
- a Pharmacy Department, Faculty of Pharmacy , The M.S. University of Baroda , Kalabhavan, Vadodara , India
| | - Abhijeet Pandey
- a Pharmacy Department, Faculty of Pharmacy , The M.S. University of Baroda , Kalabhavan, Vadodara , India
| | - Ganesh Joshi
- b Genetic Engineering Lab , ACTREC Tata Memorial Centre , Kharghar, Navi Mumbai , India
| | - Krutika Sawant
- a Pharmacy Department, Faculty of Pharmacy , The M.S. University of Baroda , Kalabhavan, Vadodara , India
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Onuki Y, Obata Y, Kawano K, Sano H, Matsumoto R, Hayashi Y, Takayama K. Membrane Microdomain Structures of Liposomes and Their Contribution to the Cellular Uptake Efficiency into HeLa Cells. Mol Pharm 2016; 13:369-78. [PMID: 26709741 DOI: 10.1021/acs.molpharmaceut.5b00601] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The purpose of this study is to obtain a comprehensive relationship between membrane microdomain structures of liposomes and their cellular uptake efficiency. Model liposomes consisting of 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC)/1,2-dioleoyl-sn-glycero-3-phosphocholine (DOPC)/cholesterol (Ch) were prepared with various lipid compositions. To detect distinct membrane microdomains in the liposomes, fluorescence-quenching assays were performed at temperatures ranging from 25 to 60 °C using 1,6-diphenyl-1,3,5-hexatriene-labeled liposomes and (2,2,6,6-tetramethylpiperidin-1-yl)oxyl. From the data analysis using the response surface method, we gained a better understanding of the conditions for forming distinct domains (Lo, Ld, and gel phase membranes) as a function of lipid composition. We further performed self-organizing maps (SOM) clustering to simplify the complicated behavior of the domain formation to obtain its essence. As a result, DPPC/DOPC/Ch liposomes in any lipid composition were integrated into five distinct clusters in terms of similarity of the domain structure. In addition, the findings from synchrotron small-angle X-ray scattering analysis offered further insight into the domain structures. As a last phase of this study, an in vitro cellular uptake study using HeLa cells was conducted using SOM clusters' liposomes with/without PEGylation. As a consequence of this study, higher cellular uptake was observed from liposomes having Ch-rich ordered domains.
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Affiliation(s)
- Yoshinori Onuki
- Department of Pharmaceutical Technology, Graduate School of Medical and Pharmaceutical Science, Unversity of Toyama , Sugitani 2630, Toyama-shi, Toyama 930-0194, Japan
| | - Yasuko Obata
- Department of Pharmaceutics and §Department of Drug Delivery Research, Hoshi University , Ebara 2-4-41, Shinagawa, Tokyo 142-8501, Japan
| | | | - Hiromu Sano
- Department of Pharmaceutics and §Department of Drug Delivery Research, Hoshi University , Ebara 2-4-41, Shinagawa, Tokyo 142-8501, Japan
| | - Reina Matsumoto
- Department of Pharmaceutics and §Department of Drug Delivery Research, Hoshi University , Ebara 2-4-41, Shinagawa, Tokyo 142-8501, Japan
| | - Yoshihiro Hayashi
- Department of Pharmaceutical Technology, Graduate School of Medical and Pharmaceutical Science, Unversity of Toyama , Sugitani 2630, Toyama-shi, Toyama 930-0194, Japan
| | - Kozo Takayama
- Department of Pharmaceutics and §Department of Drug Delivery Research, Hoshi University , Ebara 2-4-41, Shinagawa, Tokyo 142-8501, Japan
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10
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Jeong GW, Park SC, Choi C, Nam JP, Kim TH, Choi SK, Park JK, Nah JW. Anticancer effect of gene/peptide co-delivery system using transferrin-grafted LMWSC. Int J Pharm 2015; 488:165-73. [DOI: 10.1016/j.ijpharm.2015.04.057] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Revised: 04/15/2015] [Accepted: 04/16/2015] [Indexed: 10/23/2022]
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Nanoparticle-based technologies for retinal gene therapy. Eur J Pharm Biopharm 2015; 95:353-67. [PMID: 25592325 DOI: 10.1016/j.ejpb.2014.12.028] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2014] [Revised: 12/15/2014] [Accepted: 12/22/2014] [Indexed: 01/17/2023]
Abstract
For patients with hereditary retinal diseases, retinal gene therapy offers significant promise for the prevention of retinal degeneration. While adeno-associated virus (AAV)-based systems remain the most popular gene delivery method due to their high efficiency and successful clinical results, other delivery systems, such as non-viral nanoparticles (NPs) are being developed as additional therapeutic options. NP technologies come in several categories (e.g., polymer, liposomes, peptide compacted DNA), several of which have been tested in mouse models of retinal disease. Here, we discuss the key biochemical features of the different NPs that influence how they are internalized into cells, escape from endosomes, and are delivered into the nucleus. We review the primary mechanism of NP uptake by retinal cells and highlight various NPs that have been successfully used for in vivo gene delivery to the retina and RPE. Finally, we consider the various strategies that can be implemented in the plasmid DNA to generate persistent, high levels of gene expression.
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Luo H, Hong H, Yang SP, Cai W. Design and applications of bispecific heterodimers: molecular imaging and beyond. Mol Pharm 2014; 11:1750-61. [PMID: 24738564 PMCID: PMC4051252 DOI: 10.1021/mp500115x] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Ligand-based molecular imaging probes have been designed with high affinity and specificity for monitoring biological process and responses. Single-target recognition by traditional probes can limit their applicability for disease detection and therapy because synergistic action between disease mediators and different receptors is often involved in disease progression. Consequently, probes that can recognize multiple targets should demonstrate higher targeting efficacy and specificity than their monospecific peers. This concept has been validated by multiple bispecific heterodimer-based imaging probes that have demonstrated promising results in several animal models. This review summarizes the design strategies for bispecific peptide- and antibody-based heterodimers and their applications in molecular targeting and imaging. The design and application of bispecific heterodimer-conjugated nanomaterials are also discussed.
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Affiliation(s)
- Haiming Luo
- Department of Radiology, University of Wisconsin-Madison , Madison, Wisconsin 53705-2275, United States
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