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Faiad S, Laurent Q, Prinzen AL, Asohan J, Saliba D, Toader V, Sleiman HF. Impact of the Core Chemistry of Self-Assembled Spherical Nucleic Acids on their In Vitro Fate. Angew Chem Int Ed Engl 2023; 62:e202315768. [PMID: 37905978 DOI: 10.1002/anie.202315768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 10/30/2023] [Accepted: 10/31/2023] [Indexed: 11/02/2023]
Abstract
Nucleic acid therapeutics (NATs), such as mRNA, small interfering RNA or antisense oligonucleotides are extremely efficient tools to modulate gene expression and tackle otherwise undruggable diseases. Spherical nucleic acids (SNAs) can efficiently deliver small NATs to cells while protecting their payload from nucleases, and have improved biodistribution and muted immune activation. Self-assembled SNAs have emerged as nanostructures made from a single DNA-polymer conjugate with similar favorable properties as well as small molecule encapsulation. However, because they maintain their structure by non-covalent interactions, they might suffer from disassembly in biologically relevant conditions, especially with regard to their interaction with serum proteins. Here, we report a systematic study of the factors that govern the fate of self-assembled SNAs. Varying the core chemistry and using stimuli-responsive disulfide crosslinking, we show that extracellular stability upon binding with serum proteins is important for recognition by membrane receptors, triggering cellular uptake. At the same time, intracellular dissociation is required for efficient therapeutic release. Disulfide-crosslinked SNAs combine these two properties and result in efficient and non-toxic unaided gene silencing therapeutics. We anticipate these investigations will help the translation of promising self-assembled structures towards in vivo gene silencing applications.
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Affiliation(s)
- Sinan Faiad
- Department of Chemistry, McGill University, 801 Sherbrooke St West, H3A 0B8, Montreal, Québec, Canada
| | - Quentin Laurent
- Department of Chemistry, McGill University, 801 Sherbrooke St West, H3A 0B8, Montreal, Québec, Canada
| | - Alexander L Prinzen
- Department of Chemistry, McGill University, 801 Sherbrooke St West, H3A 0B8, Montreal, Québec, Canada
| | - Jathavan Asohan
- Department of Chemistry, McGill University, 801 Sherbrooke St West, H3A 0B8, Montreal, Québec, Canada
| | - Daniel Saliba
- Department of Chemistry, McGill University, 801 Sherbrooke St West, H3A 0B8, Montreal, Québec, Canada
| | - Violeta Toader
- Department of Chemistry, McGill University, 801 Sherbrooke St West, H3A 0B8, Montreal, Québec, Canada
| | - Hanadi F Sleiman
- Department of Chemistry, McGill University, 801 Sherbrooke St West, H3A 0B8, Montreal, Québec, Canada
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2
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Le TMD, Yoon AR, Thambi T, Yun CO. Polymeric Systems for Cancer Immunotherapy: A Review. Front Immunol 2022; 13:826876. [PMID: 35273607 PMCID: PMC8902250 DOI: 10.3389/fimmu.2022.826876] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 01/24/2022] [Indexed: 12/13/2022] Open
Abstract
Immunotherapy holds enormous promise to create a new outlook of cancer therapy by eliminating tumors via activation of the immune system. In immunotherapy, polymeric systems play a significant role in improving antitumor efficacy and safety profile. Polymeric systems possess many favorable properties, including magnificent biocompatibility and biodegradability, structural and component diversity, easy and controllable fabrication, and high loading capacity for immune-related substances. These properties allow polymeric systems to perform multiple functions in immunotherapy, such as immune stimulants, modifying and activating T cells, delivery system for immune cargos, or as an artificial antigen-presenting cell. Among diverse immunotherapies, immune checkpoint inhibitors, chimeric antigen receptor (CAR) T cell, and oncolytic virus recently have been dramatically investigated for their remarkable success in clinical trials. In this report, we review the monotherapy status of immune checkpoint inhibitors, CAR-T cell, and oncolytic virus, and their current combination strategies with diverse polymeric systems.
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Affiliation(s)
- Thai Minh Duy Le
- Department of Bioengineering, College of Engineering, Hanayang University, Seoul, South Korea
| | - A-Rum Yoon
- Department of Bioengineering, College of Engineering, Hanayang University, Seoul, South Korea.,Institute of Nano Science and Technology (INST), Hanayang University, Seoul, South Korea.,Hanyang Institute of Bioscience and Biotechnology (HY-IBB), Hanyang University, Seoul, South Korea
| | - Thavasyappan Thambi
- Department of Bioengineering, College of Engineering, Hanayang University, Seoul, South Korea
| | - Chae-Ok Yun
- Department of Bioengineering, College of Engineering, Hanayang University, Seoul, South Korea.,Institute of Nano Science and Technology (INST), Hanayang University, Seoul, South Korea.,Hanyang Institute of Bioscience and Biotechnology (HY-IBB), Hanyang University, Seoul, South Korea.,GeneMedicine CO., Ltd., Seoul, South Korea
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3
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Takagi K, Somiya M, Jung J, Iijima M, Kuroda S. Polymerized Albumin Receptor of Hepatitis B Virus for Evading the Reticuloendothelial System. Pharmaceuticals (Basel) 2021; 14:ph14050408. [PMID: 33923102 PMCID: PMC8145202 DOI: 10.3390/ph14050408] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 04/19/2021] [Accepted: 04/20/2021] [Indexed: 01/05/2023] Open
Abstract
Various strategies, such as optimization of surface chemistry, size, shape, and charge, have been undertaken to develop nanoparticles (NPs) as DDS (drug delivery system) nanocarriers for evading the reticuloendothelial system (RES) in vivo. We previously developed a hollow NP composed of hepatitis B virus (HBV) surface antigen L proteins and lipid bilayers, hereinafter referred to as bio-nanocapsule (BNC), as a nonviral DDS nanocarrier. Such a BNC harbors the HBV-derived human hepatic cell-specific infection mechanism, and intravenously injected BNCs by themselves were shown to avoid clearance by RES-rich organs and accumulate in target tissues. In this study, since the surface modification with albumins is known to prolong the circulation time of nanomedicines, we examined whether the polymerized albumin receptor (PAR) of BNCs contributes to RES evasion in mouse liver. Our results show that NPs conjugated with peptides possessing sufficient PAR activity were captured by Kupffer cells less efficiently in vitro and were able to circulate for a longer period of time in vivo. Comparing with polyethylene glycol, PAR peptides were shown to reduce the recognition by RES to equal content. Taken together, our results strongly suggest that the PAR domain of BNCs, as well as HBV, harbors an innate RES evasion mechanism. Therefore, the surface modification with PAR peptides could be an alternative strategy for improving the pharmacodynamics and pharmacokinetics of forthcoming nanomedicines.
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Affiliation(s)
- Kurumi Takagi
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan; (K.T.); (M.I.)
| | - Masaharu Somiya
- Department of Biomolecular Science and Reaction, The Institute of Scientific and Industrial Research, Osaka University, Osaka 567-0047, Japan;
| | - Joohee Jung
- College of Pharmacy, Duksung Women’s University, Seoul 132-714, Korea;
| | - Masumi Iijima
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan; (K.T.); (M.I.)
- Department of Nutritional Science and Food Safety, Faculty of Applied Biosciences, Tokyo University of Agriculture, Tokyo 156-8502, Japan
| | - Shun’ichi Kuroda
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan; (K.T.); (M.I.)
- Department of Biomolecular Science and Reaction, The Institute of Scientific and Industrial Research, Osaka University, Osaka 567-0047, Japan;
- Correspondence:
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4
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Zhang L, He F, Gao L, Cong M, Sun J, Xu J, Wang Y, Hu Y, Asghar S, Hu L, Qiao H. Engineering Exosome-Like Nanovesicles Derived from Asparagus cochinchinensis Can Inhibit the Proliferation of Hepatocellular Carcinoma Cells with Better Safety Profile. Int J Nanomedicine 2021; 16:1575-1586. [PMID: 33664572 PMCID: PMC7924256 DOI: 10.2147/ijn.s293067] [Citation(s) in RCA: 73] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 02/14/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Exosomes are a type of membrane vesicles secreted by living cells. Recent studies suggest exosome-like nanovesicles (ELNVs) from fruits and vegetables are involved in tissue renewal process and functional regulation against inflammatory diseases or cancers. However, there are few reports on ELNVs derived from medicinal plants. METHODS ELNVs derived from Asparagus cochinchinensis (Lour.) Merr. (ACNVs) were isolated and characterized. Cytotoxicity, antiproliferative and apoptosis-inducing capacity of ACNVs against hepatoma carcinoma cell were assessed. The endocytosis mechanism of ACNVs was evaluated on Hep G2 cells in the presence of different endocytosis inhibitors. In vivo distribution of ACNVs was detected in healthy and tumor-bearing mice after scavenger receptors (SRs) blockade. PEG engineering of ACNVs was achieved through optimizing the pharmacokinetic profiles. In vivo antitumor activity and toxicity were evaluated in Hep G2 cell xenograft model. RESULTS ACNVs were isolated and purified using a differential centrifugation method accompanied by sucrose gradient ultracentrifugation. The optimized ACNVs had an average size of about 119 nm and showed a typical cup-shaped nanostructure containing lipids, proteins, and RNAs. ACNVs were found to possess specific antitumor cell proliferation activity associated with an apoptosis-inducing pathway. ACNVs could be internalized into tumor cells mainly via phagocytosis, but they were quickly cleared once entering the blood. Blocking the SRs or PEGylation decoration prolonged the blood circulation time and increased the accumulation of ACNVs in tumor sites. In vivo antitumor results showed that PEGylated ACNVs could significantly inhibit tumor growth without side effects. CONCLUSION This study provides a promising functional nano platform derived from edible Asparagus cochinchinensis that can be used in antitumor therapy with negligible side effects.
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Affiliation(s)
- Lei Zhang
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, People's Republic of China
| | - Fengjun He
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, People's Republic of China
| | - Lina Gao
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, People's Republic of China
| | - Minghui Cong
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, People's Republic of China
| | - Juan Sun
- State Key Laboratory Cultivation Base for TCM Quality and Efficacy, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, People's Republic of China
| | - Jialu Xu
- State Key Laboratory Cultivation Base for TCM Quality and Efficacy, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, People's Republic of China
| | - Yutong Wang
- State Key Laboratory Cultivation Base for TCM Quality and Efficacy, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, People's Republic of China
| | - Yang Hu
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, People's Republic of China
| | - Sajid Asghar
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Government College University, Faisalabad, Pakistan
| | - Lihong Hu
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, People's Republic of China
- State Key Laboratory Cultivation Base for TCM Quality and Efficacy, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, People's Republic of China
| | - Hongzhi Qiao
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, People's Republic of China
- State Key Laboratory Cultivation Base for TCM Quality and Efficacy, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, People's Republic of China
- Jiangsu Engineering Research Center for Efficient Delivery System of TCM, Nanjing University of Chinese Medicine, Nanjing, 210023, People's Republic of China
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Mujagić A, Marushima A, Nagasaki Y, Hosoo H, Hirayama A, Puentes S, Takahashi T, Tsurushima H, Suzuki K, Matsui H, Ishikawa E, Matsumaru Y, Matsumura A. Antioxidant nanomedicine with cytoplasmic distribution in neuronal cells shows superior neurovascular protection properties. Brain Res 2020; 1743:146922. [PMID: 32504549 DOI: 10.1016/j.brainres.2020.146922] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 05/20/2020] [Accepted: 06/01/2020] [Indexed: 01/15/2023]
Abstract
This study investigated whether nitroxide radical (4-amino-TEMPOL)-containing nanoparticles (RNPs; antioxidant nanomedicine) can prevent neurovascular unit impairment caused by reactive oxygen species (ROS) after cerebral ischemia-reperfusion. C57BL/6J mice underwent transient middle cerebral artery occlusion (tMCAO). The mice were randomly divided and administered intra-arterial RNPs injection (9 mg/kg, 7 μM/kg), edaravone (3 mg/kg, 17 μM/kg), or phosphate-buffered saline (control group). Survival rate and neurological score were evaluated 24 h post-injection. RNPs distribution was determined using immunofluorescence staining and blood-brain barrier (BBB) disruption using Evans blue extravasation assay. Effect of RNPs and edaravone on microglia polarization into microglia M1 and M2 was evaluated. We also determined multiple ROS-scavenging activities in brain homogenates of RNPs- and edaravone-treated animals using an electron spin resonance-based spin-trapping method. Compared with edaravone, RNPs significantly improved the survival rate and neurological deficit, inhibited BBB disruption and supported polarization of microglia into M2 microglia. RNPs were localized in endothelial cells, the perivascular space, neuronal cell cytoplasm, astrocytes, and microglia. Scavenging capacities of hydroxyl, alkoxyl, and peroxyl radicals were significantly higher in the RNPs-treated group. RNPs show promising results as a future neuroprotective nanomedicine approach for cerebral ischemia-reperfusion injury.
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Affiliation(s)
- Arnela Mujagić
- Department of Neurosurgery, Faculty of Medicine, University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki, Japan; Department of Neurosurgery, Graduate School of Comprehensive Human Science, University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki, Japan
| | - Aiki Marushima
- Department of Neurosurgery, Faculty of Medicine, University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki, Japan; Department of Neurosurgery, Graduate School of Comprehensive Human Science, University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki, Japan.
| | - Yukio Nagasaki
- Graduate School of Pure and Applied Sciences, University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki, Japan
| | - Hisayuki Hosoo
- Department of Neurosurgery, Faculty of Medicine, University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki, Japan; Department of Neurosurgery, Graduate School of Comprehensive Human Science, University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki, Japan
| | - Aki Hirayama
- Center for Integrative Medicine, Tsukuba University of Technology, Kasuga 4-12-7, Tsukuba, Ibaraki, Japan
| | - Sandra Puentes
- Graduate School of Systems and Information Engineering, University of Tsukuba, Tennodai 1-1-1, Ibaraki, Japan
| | - Toshihide Takahashi
- Department of Neurosurgery, Faculty of Medicine, University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki, Japan; Department of Neurosurgery, Graduate School of Comprehensive Human Science, University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki, Japan
| | - Hideo Tsurushima
- Department of Neurosurgery, Faculty of Medicine, University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki, Japan; Department of Neurosurgery, Graduate School of Comprehensive Human Science, University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki, Japan
| | - Kensuke Suzuki
- Department of Neurosurgery, Saitama Medical Center, Dokkyo Medical University, Minami-Koshigaya 2-1-50, Koshigaya, Saitama, Japan
| | - Hirofumi Matsui
- Department of Gastroenterology, Faculty of Medicine, University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki, Japan
| | - Eiichi Ishikawa
- Department of Neurosurgery, Faculty of Medicine, University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki, Japan; Department of Neurosurgery, Graduate School of Comprehensive Human Science, University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki, Japan
| | - Yuji Matsumaru
- Department of Neurosurgery, Faculty of Medicine, University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki, Japan; Department of Neurosurgery, Graduate School of Comprehensive Human Science, University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki, Japan
| | - Akira Matsumura
- Department of Neurosurgery, Faculty of Medicine, University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki, Japan; Department of Neurosurgery, Graduate School of Comprehensive Human Science, University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki, Japan
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6
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Coughlan L. Factors Which Contribute to the Immunogenicity of Non-replicating Adenoviral Vectored Vaccines. Front Immunol 2020; 11:909. [PMID: 32508823 PMCID: PMC7248264 DOI: 10.3389/fimmu.2020.00909] [Citation(s) in RCA: 82] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 04/20/2020] [Indexed: 01/12/2023] Open
Abstract
Adenoviral vectors are a safe and potently immunogenic vaccine delivery platform. Non-replicating Ad vectors possess several attributes which make them attractive vaccines for infectious disease, including their capacity for high titer growth, ease of manipulation, safety, and immunogenicity in clinical studies, as well as their compatibility with clinical manufacturing and thermo-stabilization procedures. In general, Ad vectors are immunogenic vaccines, which elicit robust transgene antigen-specific cellular (namely CD8+ T cells) and/or humoral immune responses. A large number of adenoviruses isolated from humans and non-human primates, which have low seroprevalence in humans, have been vectorized and tested as vaccines in animal models and humans. However, a distinct hierarchy of immunological potency has been identified between diverse Ad vectors, which unfortunately limits the potential use of many vectors which have otherwise desirable manufacturing characteristics. The precise mechanistic factors which underlie the profound disparities in immunogenicity are not clearly defined and are the subject of ongoing, detailed investigation. It has been suggested that a combination of factors contribute to the potent immunogenicity of particular Ad vectors, including the magnitude and duration of vaccine antigen expression following immunization. Furthermore, the excessive induction of Type I interferons by some Ad vectors has been suggested to impair transgene expression levels, dampening subsequent immune responses. Therefore, the induction of balanced, but not excessive stimulation of innate signaling is optimal. Entry factor binding or receptor usage of distinct Ad vectors can also affect their in vivo tropism following administration by different routes. The abundance and accessibility of innate immune cells and/or antigen-presenting cells at the site of injection contributes to early innate immune responses to Ad vaccination, affecting the outcome of the adaptive immune response. Although a significant amount of information exists regarding the tropism determinants of the common human adenovirus type-5 vector, very little is known about the receptor usage and tropism of rare species or non-human Ad vectors. Increased understanding of how different facets of the host response to Ad vectors contribute to their immunological potency will be essential for the development of optimized and customized Ad vaccine platforms for specific diseases.
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Hosoo H, Marushima A, Nagasaki Y, Hirayama A, Ito H, Puentes S, Mujagic A, Tsurushima H, Tsuruta W, Suzuki K, Matsui H, Matsumaru Y, Yamamoto T, Matsumura A. Neurovascular Unit Protection From Cerebral Ischemia-Reperfusion Injury by Radical-Containing Nanoparticles in Mice. Stroke 2017; 48:2238-2247. [PMID: 28655813 DOI: 10.1161/strokeaha.116.016356] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Revised: 05/24/2017] [Accepted: 05/26/2017] [Indexed: 12/24/2022]
Abstract
BACKGROUND AND PURPOSE Reperfusion therapy by mechanical thrombectomy is used to treat acute ischemic stroke. However, reactive oxygen species generation after reperfusion therapy causes cerebral ischemia-reperfusion injury, which aggravates cerebral infarction. There is limited evidence for clinical efficacy in stroke for antioxidants. Here, we developed a novel core-shell type nanoparticle containing 4-amino-4-hydroxy-2,2,6,6-tetramethylpiperidine-1-oxyl (nitroxide radical-containing nanoparticles [RNPs]) and investigated its ability to scavenge reactive oxygen species and confer neuroprotection. METHODS C57BL/6J mice underwent transient middle cerebral artery occlusion and then received RNPs (9 mg/kg) through the common carotid artery. Infarction size, neurological scale, and blood-brain barrier damage were visualized by Evans blue extravasation 24 hours after reperfusion. RNP distribution was detected by rhodamine labeling. Blood-brain barrier damage, neuronal apoptosis, and oxidative neuronal cell damage were evaluated in ischemic brains. Multiple free radical-scavenging capacities were analyzed by an electron paramagnetic resonance-based method. RESULTS RNPs were detected in endothelial cells and around neuronal cells in the ischemic lesion. Infarction size, neurological scale, and Evans blue extravasation were significantly lower after RNP treatment. RNP treatment preserved the endothelium and endothelial tight junctions in the ischemic brain; neuronal apoptosis, O2- production, and gene oxidation were significantly suppressed. Reactive oxygen species scavenging capacities against OH, ROO, and O2- improved by RNP treatment. CONCLUSIONS An intra-arterial RNP injection after cerebral ischemia-reperfusion injury reduced blood-brain barrier damage and infarction volume by improving multiple reactive oxygen species scavenging capacities. Therefore, RNPs can provide neurovascular unit protection.
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Affiliation(s)
- Hisayuki Hosoo
- From the Department of Neurosurgery, Faculty of Medicine (H.H., A.M., H.T., W.T., Y.M., T.Y., A.M.), Department of Neurosurgery, Graduate School of Comprehensive Human Science (H.H., A. Marushima, A. Mujagic, H.T., W.T., Y.M., T.Y., A.M.), Graduate School of Pure and Applied Sciences (Y.N.), Department of Gastroenterology, Graduate School of Comprehensive Human Science (H.I., H.M.), and Graduate School of Systems and Information Engineering (S.P.), University of Tsukuba, Ibaraki, Japan; Center for Integrative Medicine, Tsukuba University of Technology, Ibaraki, Japan (A.H.); and Department of Neurosurgery, Dokkyo Medical University Koshigaya Hospital, Saitama, Japan (K.S.)
| | - Aiki Marushima
- From the Department of Neurosurgery, Faculty of Medicine (H.H., A.M., H.T., W.T., Y.M., T.Y., A.M.), Department of Neurosurgery, Graduate School of Comprehensive Human Science (H.H., A. Marushima, A. Mujagic, H.T., W.T., Y.M., T.Y., A.M.), Graduate School of Pure and Applied Sciences (Y.N.), Department of Gastroenterology, Graduate School of Comprehensive Human Science (H.I., H.M.), and Graduate School of Systems and Information Engineering (S.P.), University of Tsukuba, Ibaraki, Japan; Center for Integrative Medicine, Tsukuba University of Technology, Ibaraki, Japan (A.H.); and Department of Neurosurgery, Dokkyo Medical University Koshigaya Hospital, Saitama, Japan (K.S.).
| | - Yukio Nagasaki
- From the Department of Neurosurgery, Faculty of Medicine (H.H., A.M., H.T., W.T., Y.M., T.Y., A.M.), Department of Neurosurgery, Graduate School of Comprehensive Human Science (H.H., A. Marushima, A. Mujagic, H.T., W.T., Y.M., T.Y., A.M.), Graduate School of Pure and Applied Sciences (Y.N.), Department of Gastroenterology, Graduate School of Comprehensive Human Science (H.I., H.M.), and Graduate School of Systems and Information Engineering (S.P.), University of Tsukuba, Ibaraki, Japan; Center for Integrative Medicine, Tsukuba University of Technology, Ibaraki, Japan (A.H.); and Department of Neurosurgery, Dokkyo Medical University Koshigaya Hospital, Saitama, Japan (K.S.)
| | - Aki Hirayama
- From the Department of Neurosurgery, Faculty of Medicine (H.H., A.M., H.T., W.T., Y.M., T.Y., A.M.), Department of Neurosurgery, Graduate School of Comprehensive Human Science (H.H., A. Marushima, A. Mujagic, H.T., W.T., Y.M., T.Y., A.M.), Graduate School of Pure and Applied Sciences (Y.N.), Department of Gastroenterology, Graduate School of Comprehensive Human Science (H.I., H.M.), and Graduate School of Systems and Information Engineering (S.P.), University of Tsukuba, Ibaraki, Japan; Center for Integrative Medicine, Tsukuba University of Technology, Ibaraki, Japan (A.H.); and Department of Neurosurgery, Dokkyo Medical University Koshigaya Hospital, Saitama, Japan (K.S.)
| | - Hiromu Ito
- From the Department of Neurosurgery, Faculty of Medicine (H.H., A.M., H.T., W.T., Y.M., T.Y., A.M.), Department of Neurosurgery, Graduate School of Comprehensive Human Science (H.H., A. Marushima, A. Mujagic, H.T., W.T., Y.M., T.Y., A.M.), Graduate School of Pure and Applied Sciences (Y.N.), Department of Gastroenterology, Graduate School of Comprehensive Human Science (H.I., H.M.), and Graduate School of Systems and Information Engineering (S.P.), University of Tsukuba, Ibaraki, Japan; Center for Integrative Medicine, Tsukuba University of Technology, Ibaraki, Japan (A.H.); and Department of Neurosurgery, Dokkyo Medical University Koshigaya Hospital, Saitama, Japan (K.S.)
| | - Sandra Puentes
- From the Department of Neurosurgery, Faculty of Medicine (H.H., A.M., H.T., W.T., Y.M., T.Y., A.M.), Department of Neurosurgery, Graduate School of Comprehensive Human Science (H.H., A. Marushima, A. Mujagic, H.T., W.T., Y.M., T.Y., A.M.), Graduate School of Pure and Applied Sciences (Y.N.), Department of Gastroenterology, Graduate School of Comprehensive Human Science (H.I., H.M.), and Graduate School of Systems and Information Engineering (S.P.), University of Tsukuba, Ibaraki, Japan; Center for Integrative Medicine, Tsukuba University of Technology, Ibaraki, Japan (A.H.); and Department of Neurosurgery, Dokkyo Medical University Koshigaya Hospital, Saitama, Japan (K.S.)
| | - Arnela Mujagic
- From the Department of Neurosurgery, Faculty of Medicine (H.H., A.M., H.T., W.T., Y.M., T.Y., A.M.), Department of Neurosurgery, Graduate School of Comprehensive Human Science (H.H., A. Marushima, A. Mujagic, H.T., W.T., Y.M., T.Y., A.M.), Graduate School of Pure and Applied Sciences (Y.N.), Department of Gastroenterology, Graduate School of Comprehensive Human Science (H.I., H.M.), and Graduate School of Systems and Information Engineering (S.P.), University of Tsukuba, Ibaraki, Japan; Center for Integrative Medicine, Tsukuba University of Technology, Ibaraki, Japan (A.H.); and Department of Neurosurgery, Dokkyo Medical University Koshigaya Hospital, Saitama, Japan (K.S.)
| | - Hideo Tsurushima
- From the Department of Neurosurgery, Faculty of Medicine (H.H., A.M., H.T., W.T., Y.M., T.Y., A.M.), Department of Neurosurgery, Graduate School of Comprehensive Human Science (H.H., A. Marushima, A. Mujagic, H.T., W.T., Y.M., T.Y., A.M.), Graduate School of Pure and Applied Sciences (Y.N.), Department of Gastroenterology, Graduate School of Comprehensive Human Science (H.I., H.M.), and Graduate School of Systems and Information Engineering (S.P.), University of Tsukuba, Ibaraki, Japan; Center for Integrative Medicine, Tsukuba University of Technology, Ibaraki, Japan (A.H.); and Department of Neurosurgery, Dokkyo Medical University Koshigaya Hospital, Saitama, Japan (K.S.)
| | - Wataro Tsuruta
- From the Department of Neurosurgery, Faculty of Medicine (H.H., A.M., H.T., W.T., Y.M., T.Y., A.M.), Department of Neurosurgery, Graduate School of Comprehensive Human Science (H.H., A. Marushima, A. Mujagic, H.T., W.T., Y.M., T.Y., A.M.), Graduate School of Pure and Applied Sciences (Y.N.), Department of Gastroenterology, Graduate School of Comprehensive Human Science (H.I., H.M.), and Graduate School of Systems and Information Engineering (S.P.), University of Tsukuba, Ibaraki, Japan; Center for Integrative Medicine, Tsukuba University of Technology, Ibaraki, Japan (A.H.); and Department of Neurosurgery, Dokkyo Medical University Koshigaya Hospital, Saitama, Japan (K.S.)
| | - Kensuke Suzuki
- From the Department of Neurosurgery, Faculty of Medicine (H.H., A.M., H.T., W.T., Y.M., T.Y., A.M.), Department of Neurosurgery, Graduate School of Comprehensive Human Science (H.H., A. Marushima, A. Mujagic, H.T., W.T., Y.M., T.Y., A.M.), Graduate School of Pure and Applied Sciences (Y.N.), Department of Gastroenterology, Graduate School of Comprehensive Human Science (H.I., H.M.), and Graduate School of Systems and Information Engineering (S.P.), University of Tsukuba, Ibaraki, Japan; Center for Integrative Medicine, Tsukuba University of Technology, Ibaraki, Japan (A.H.); and Department of Neurosurgery, Dokkyo Medical University Koshigaya Hospital, Saitama, Japan (K.S.)
| | - Hirofumi Matsui
- From the Department of Neurosurgery, Faculty of Medicine (H.H., A.M., H.T., W.T., Y.M., T.Y., A.M.), Department of Neurosurgery, Graduate School of Comprehensive Human Science (H.H., A. Marushima, A. Mujagic, H.T., W.T., Y.M., T.Y., A.M.), Graduate School of Pure and Applied Sciences (Y.N.), Department of Gastroenterology, Graduate School of Comprehensive Human Science (H.I., H.M.), and Graduate School of Systems and Information Engineering (S.P.), University of Tsukuba, Ibaraki, Japan; Center for Integrative Medicine, Tsukuba University of Technology, Ibaraki, Japan (A.H.); and Department of Neurosurgery, Dokkyo Medical University Koshigaya Hospital, Saitama, Japan (K.S.)
| | - Yuji Matsumaru
- From the Department of Neurosurgery, Faculty of Medicine (H.H., A.M., H.T., W.T., Y.M., T.Y., A.M.), Department of Neurosurgery, Graduate School of Comprehensive Human Science (H.H., A. Marushima, A. Mujagic, H.T., W.T., Y.M., T.Y., A.M.), Graduate School of Pure and Applied Sciences (Y.N.), Department of Gastroenterology, Graduate School of Comprehensive Human Science (H.I., H.M.), and Graduate School of Systems and Information Engineering (S.P.), University of Tsukuba, Ibaraki, Japan; Center for Integrative Medicine, Tsukuba University of Technology, Ibaraki, Japan (A.H.); and Department of Neurosurgery, Dokkyo Medical University Koshigaya Hospital, Saitama, Japan (K.S.)
| | - Tetsuya Yamamoto
- From the Department of Neurosurgery, Faculty of Medicine (H.H., A.M., H.T., W.T., Y.M., T.Y., A.M.), Department of Neurosurgery, Graduate School of Comprehensive Human Science (H.H., A. Marushima, A. Mujagic, H.T., W.T., Y.M., T.Y., A.M.), Graduate School of Pure and Applied Sciences (Y.N.), Department of Gastroenterology, Graduate School of Comprehensive Human Science (H.I., H.M.), and Graduate School of Systems and Information Engineering (S.P.), University of Tsukuba, Ibaraki, Japan; Center for Integrative Medicine, Tsukuba University of Technology, Ibaraki, Japan (A.H.); and Department of Neurosurgery, Dokkyo Medical University Koshigaya Hospital, Saitama, Japan (K.S.)
| | - Akira Matsumura
- From the Department of Neurosurgery, Faculty of Medicine (H.H., A.M., H.T., W.T., Y.M., T.Y., A.M.), Department of Neurosurgery, Graduate School of Comprehensive Human Science (H.H., A. Marushima, A. Mujagic, H.T., W.T., Y.M., T.Y., A.M.), Graduate School of Pure and Applied Sciences (Y.N.), Department of Gastroenterology, Graduate School of Comprehensive Human Science (H.I., H.M.), and Graduate School of Systems and Information Engineering (S.P.), University of Tsukuba, Ibaraki, Japan; Center for Integrative Medicine, Tsukuba University of Technology, Ibaraki, Japan (A.H.); and Department of Neurosurgery, Dokkyo Medical University Koshigaya Hospital, Saitama, Japan (K.S.)
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8
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Gallud A, Bondarenko O, Feliu N, Kupferschmidt N, Atluri R, Garcia-Bennett A, Fadeel B. Macrophage activation status determines the internalization of mesoporous silica particles of different sizes: Exploring the role of different pattern recognition receptors. Biomaterials 2016; 121:28-40. [PMID: 28063981 DOI: 10.1016/j.biomaterials.2016.12.029] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Revised: 11/22/2016] [Accepted: 12/26/2016] [Indexed: 12/23/2022]
Abstract
Mesoporous silica-based particles are promising candidates for biomedical applications. Here, we address the importance of macrophage activation status for internalization of AMS6 (approx. 200 nm in diameter) versus AMS8 (approx. 2 μm) mesoporous silica particles and the role of different phagocytosis receptors for particle uptake. To this end, FITC-conjugated silica particles were used. AMS8 were found to be non-cytotoxic both for M-CSF-stimulated (anti-inflammatory) and GM-CSF-stimulated (pro-inflammatory) macrophages, whereas AMS6 exhibited cytotoxicity towards M-CSF-stimulated, but not GM-CSF-stimulated macrophages; this toxicity was, however, mitigated in the presence of serum. AMS8 triggered the secretion of pro-inflammatory cytokines in M-CSF-activated cells. Class A scavenger receptor (SR-A) expression was noted in both M-CSF and GM-CSF-stimulated macrophages, although the expression was higher in the former case, and gene silencing of SR-A resulted in a decreased uptake of AMS6 in the absence of serum. GM-CSF-stimulated macrophages expressed higher levels of the mannose receptor CD206 compared to M-CSF-stimulated cells, and uptake of AMS6, but not AMS8, was reduced following the downregulation of CD206 in GM-CSF-stimulated cells; particle uptake was also suppressed by mannan, a competitive ligand. These studies demonstrate that macrophage activation status is an important determinant of particle uptake and provide evidence for a role of different macrophage receptors for cell uptake of silica particles.
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Affiliation(s)
- Audrey Gallud
- Nanosafety & Nanomedicine Laboratory, Division of Molecular Toxicology, Institute of Environmental Medicine, Karolinska Institutet, 171 77, Stockholm, Sweden
| | - Olesja Bondarenko
- Nanosafety & Nanomedicine Laboratory, Division of Molecular Toxicology, Institute of Environmental Medicine, Karolinska Institutet, 171 77, Stockholm, Sweden
| | - Neus Feliu
- Nanosafety & Nanomedicine Laboratory, Division of Molecular Toxicology, Institute of Environmental Medicine, Karolinska Institutet, 171 77, Stockholm, Sweden
| | - Natalia Kupferschmidt
- Department of Materials and Environmental Chemistry, Stockholm University, 106 91, Stockholm, Sweden
| | | | - Alfonso Garcia-Bennett
- Department of Chemistry and Biomolecular Science, Macquarie University, Sydney, NSW, 2109, Australia
| | - Bengt Fadeel
- Nanosafety & Nanomedicine Laboratory, Division of Molecular Toxicology, Institute of Environmental Medicine, Karolinska Institutet, 171 77, Stockholm, Sweden.
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9
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Vene E, Barouti G, Jarnouen K, Gicquel T, Rauch C, Ribault C, Guillaume SM, Cammas-Marion S, Loyer P. Opsonisation of nanoparticles prepared from poly(β-hydroxybutyrate) and poly(trimethylene carbonate)-b-poly(malic acid) amphiphilic diblock copolymers: Impact on the in vitro cell uptake by primary human macrophages and HepaRG hepatoma cells. Int J Pharm 2016; 513:438-452. [PMID: 27640247 DOI: 10.1016/j.ijpharm.2016.09.048] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Revised: 09/12/2016] [Accepted: 09/14/2016] [Indexed: 12/18/2022]
Abstract
The present work reports the investigation of the biocompatibility, opsonisation and cell uptake by human primary macrophages and HepaRG cells of nanoparticles (NPs) formulated from poly(β-malic acid)-b-poly(β-hydroxybutyrate) (PMLA-b-PHB) and poly(β-malic acid)-b-poly(trimethylene carbonate) (PMLA-b-PTMC) diblock copolymers, namely PMLA800-b-PHB7300, PMLA4500-b-PHB4400, PMLA2500-b-PTMC2800 and PMLA4300-b-PTMC1400. NPs derived from PMLA-b-PHB and PMLA-b-PTMC do not trigger lactate dehydrogenase release and do not activate the secretion of pro-inflammatory cytokines demonstrating the excellent biocompatibility of these copolymers derived nano-objects. Using a protein adsorption assay, we demonstrate that the binding of plasma proteins is very low for PMLA-b-PHB-based nano-objects, and higher for those prepared from PMLA-b-PTMC copolymers. Moreover, a more efficient uptake by macrophages and HepaRG cells is observed for NPs formulated from PMLA-b-PHB copolymers compared to that of PMLA-b-PTMC-based NPs. Interestingly, the uptake in HepaRG cells of NPs formulated from PMLA800-b-PHB7300 is much higher than that of NPs based on PMLA4500-b-PHB4400. In addition, the cell internalization of PMLA800-b-PHB7300 based-NPs, probably through endocytosis, is strongly increased by serum pre-coating in HepaRG cells but not in macrophages. Together, these data strongly suggest that the binding of a specific subset of plasmatic proteins onto the PMLA800-b-PHB7300-based NPs favors the HepaRG cell uptake while reducing that of macrophages.
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Affiliation(s)
- Elise Vene
- INSERM UMR S-991, Foie, Métabolismes et Cancer; Université de Rennes 1; CHU Pontchaillou Rennes, 35033 Rennes, France
| | - Ghislaine Barouti
- Institut des Sciences Chimiques de Rennes; UMR 6226 CNRS; Université de Rennes 1, Campus de Beaulieu, 263 Avenue du Général Leclerc, F-35042 Rennes Cedex, France
| | - Kathleen Jarnouen
- INSERM UMR S-991, Foie, Métabolismes et Cancer; Université de Rennes 1; CHU Pontchaillou Rennes, 35033 Rennes, France
| | - Thomas Gicquel
- INSERM UMR S-991, Foie, Métabolismes et Cancer; Université de Rennes 1; CHU Pontchaillou Rennes, 35033 Rennes, France
| | - Claudine Rauch
- INSERM UMR S-991, Foie, Métabolismes et Cancer; Université de Rennes 1; CHU Pontchaillou Rennes, 35033 Rennes, France
| | - Catherine Ribault
- INSERM UMR S-991, Foie, Métabolismes et Cancer; Université de Rennes 1; CHU Pontchaillou Rennes, 35033 Rennes, France
| | - Sophie M Guillaume
- Institut des Sciences Chimiques de Rennes; UMR 6226 CNRS; Université de Rennes 1, Campus de Beaulieu, 263 Avenue du Général Leclerc, F-35042 Rennes Cedex, France
| | - Sandrine Cammas-Marion
- Ecole Nationale Supérieure de Chimie de Rennes, Institute des Sciences Chimiques de Rennes, Université de Rennes 1, 11 allée de Beaulieu, CS 50837, 35708 Rennes Cedex 7, France
| | - Pascal Loyer
- INSERM UMR S-991, Foie, Métabolismes et Cancer; Université de Rennes 1; CHU Pontchaillou Rennes, 35033 Rennes, France.
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10
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Dawidczyk CM, Russell LM, Searson PC. Recommendations for Benchmarking Preclinical Studies of Nanomedicines. Cancer Res 2015; 75:4016-20. [PMID: 26249177 DOI: 10.1158/0008-5472.can-15-1558] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Accepted: 07/27/2015] [Indexed: 11/16/2022]
Abstract
Nanoparticle-based delivery systems provide new opportunities to overcome the limitations associated with traditional small-molecule drug therapy for cancer and to achieve both therapeutic and diagnostic functions in the same platform. Preclinical trials are generally designed to assess therapeutic potential and not to optimize the design of the delivery platform. Consequently, progress in developing design rules for cancer nanomedicines has been slow, hindering progress in the field. Despite the large number of preclinical trials, several factors restrict comparison and benchmarking of different platforms, including variability in experimental design, reporting of results, and the lack of quantitative data. To solve this problem, we review the variables involved in the design of preclinical trials and propose a protocol for benchmarking that we recommend be included in in vivo preclinical studies of drug-delivery platforms for cancer therapy. This strategy will contribute to building the scientific knowledge base that enables development of design rules and accelerates the translation of new technologies.
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Affiliation(s)
- Charlene M Dawidczyk
- Institute for Nanobiotechnology, Johns Hopkins University, Baltimore, Maryland. Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, Maryland
| | - Luisa M Russell
- Institute for Nanobiotechnology, Johns Hopkins University, Baltimore, Maryland. Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, Maryland
| | - Peter C Searson
- Institute for Nanobiotechnology, Johns Hopkins University, Baltimore, Maryland. Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, Maryland. Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland.
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11
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Singh D, Kapahi H, Rashid M, Prakash A, Majeed ABA, Mishra N. Recent prospective of surface engineered Nanoparticles in the management of Neurodegenerative disorders. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2015; 44:780-91. [PMID: 26107112 DOI: 10.3109/21691401.2015.1029622] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Clinically, the therapeutic outcomes in neurodegenerative disorders (NDs) by drug treatment are very limited, and the most insurmountable obstacle in the treatment of NDs is the blood-brain barrier (BBB), which provides the highest level of protection from xenobiotics. A great deal of attention still needs to be paid to overcome these barriers, and surface-engineered polymeric nanoparticles are emerging as innovative tools that are able to interact with the biological system at a molecular level for the desired response. The present review covers the potential importance of surface-structure-engineered nanoparticles to overcome the BBB for good bioavailability, and the evaluation of drug therapy in NDs.
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Affiliation(s)
- Devendra Singh
- a Department of Pharmaceutics , I.S.F. College of Pharmacy , Moga, Punjab , India
| | - Himani Kapahi
- a Department of Pharmaceutics , I.S.F. College of Pharmacy , Moga, Punjab , India
| | - Muzamil Rashid
- a Department of Pharmaceutics , I.S.F. College of Pharmacy , Moga, Punjab , India
| | - Atish Prakash
- b Department of Pharmacology , I.S.F. College of Pharmacy , Moga, Punjab , India.,c Brain Research Laboratory, Department of Pharmacology , Faculty of Pharmacy, Universiti Teknologi MARA (UiTM) , 42300, Puncak Alam, Malaysia
| | - Abu Bakar Abdul Majeed
- c Brain Research Laboratory, Department of Pharmacology , Faculty of Pharmacy, Universiti Teknologi MARA (UiTM) , 42300, Puncak Alam, Malaysia
| | - Neeraj Mishra
- a Department of Pharmaceutics , I.S.F. College of Pharmacy , Moga, Punjab , India
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12
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Md S, Mustafa G, Baboota S, Ali J. Nanoneurotherapeutics approach intended for direct nose to brain delivery. Drug Dev Ind Pharm 2015; 41:1922-34. [PMID: 26057769 DOI: 10.3109/03639045.2015.1052081] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
CONTEXT Brain disorders remain the world's leading cause of disability, and account for more hospitalizations and prolonged care than almost all other diseases combined. The majority of drugs, proteins and peptides do not readily permeate into brain due to the presence of the blood-brain barrier (BBB), thus impeding treatment of these conditions. OBJECTIVE Attention has turned to developing novel and effective delivery systems to provide good bioavailability in the brain. METHODS Intranasal administration is a non-invasive method of drug delivery that may bypass the BBB, allowing therapeutic substances direct access to the brain. However, intranasal administration produces quite low drug concentrations in the brain due limited nasal mucosal permeability and the harsh nasal cavity environment. Pre-clinical studies using encapsulation of drugs in nanoparticulate systems improved the nose to brain targeting and bioavailability in brain. However, the toxic effects of nanoparticles on brain function are unknown. RESULT AND CONCLUSION This review highlights the understanding of several brain diseases and the important pathophysiological mechanisms involved. The review discusses the role of nanotherapeutics in treating brain disorders via nose to brain delivery, the mechanisms of drug absorption across nasal mucosa to the brain, strategies to overcome the blood brain barrier, nanoformulation strategies for enhanced brain targeting via nasal route and neurotoxicity issues of nanoparticles.
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Affiliation(s)
- Shadab Md
- a Department of Pharmaceutical Technology , School of Pharmacy, International Medical University (IMU) , Kuala Lumpur , Malaysia
| | - Gulam Mustafa
- b College of Pharmacy, Al-Dawadmi Campus, Shaqra University , Riyadh , Kingdom of Saudi Arabia , and.,c Faculty of Pharmacy, Department of Pharmaceutics , Jamia Hamdard, New Delhi , India
| | - Sanjula Baboota
- c Faculty of Pharmacy, Department of Pharmaceutics , Jamia Hamdard, New Delhi , India
| | - Javed Ali
- c Faculty of Pharmacy, Department of Pharmaceutics , Jamia Hamdard, New Delhi , India
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13
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Improved stability and immunological potential of tetanus toxoid containing surface engineered bilosomes following oral administration. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2014; 10:431-40. [DOI: 10.1016/j.nano.2013.08.012] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2013] [Revised: 07/31/2013] [Accepted: 08/26/2013] [Indexed: 01/19/2023]
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14
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Wang H, Wu L, Reinhard BM. Scavenger receptor mediated endocytosis of silver nanoparticles into J774A.1 macrophages is heterogeneous. ACS NANO 2012; 6:7122-32. [PMID: 22799499 PMCID: PMC3482345 DOI: 10.1021/nn302186n] [Citation(s) in RCA: 90] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
We investigated the scavenger receptor mediated uptake and subsequent intracellular spatial distribution and clustering of 57.7 ± 6.9 nm diameter silver nanoparticles (zeta-potential = -28.4 mV) in the murine macrophage cell line J774A.1 through colorimetric imaging. The NPs exhibited an overall red-shift of the plasmon resonance wavelength in the cell ensemble as function of time and concentration, indicative of intracellular NP agglomeration. A detailed analysis of the NP clustering in individual cells revealed a strong phenotypic variability in the intracellular NP organization on the single cell level. Throughout the observation time of 24h cells containing non- or low-agglomerated NPs with a characteristic blue color coexisted with cells containing NPs with varying degrees of agglomeration, as evinced by distinct spectral shifts of their resonance wavelengths. Pharmacological inhibition studies indicated that the observed differences in intracellular NP organization resulted from coexisting actin- and clathrin-dependent endocytosis mechanisms in the macrophage population. Correlation of intracellular NP clustering with macrophage maturity marker (F4/80, CD14) expression revealed that differentiated J774A.1 cells preferentially contained compact NP agglomerates, whereas monocyte-like macrophages contained non-agglomerated NPs.
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15
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Hsieh WH, Chang SF, Chen HM, Chen JH, Liaw J. Oral gene delivery with cyclo-(D-Trp-Tyr) peptide nanotubes. Mol Pharm 2012; 9:1231-49. [PMID: 22480317 DOI: 10.1021/mp200523n] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The feasibility of cyclo-(D-Trp-Tyr) peptide nanotubes (PNTs) as oral gene delivery carriers was investigated in nude mice with eight 40 μg doses of pCMV-lacZ in 2 days at 3 h intervals. The association between DNA and PNTs, the DNase I stability of PNTs-associated DNA, and in vitro permeability of DNA were estimated. The results showed that the cyclo-(D-Trp-Tyr) PNTs self-associated at concentrations above 0.01 mg/mL. Plasmid DNA associated with PNTs with a binding constant of 3.2 × 10(8) M(-1) calculated by a fluorescence quenching assay. PNTs were able to protect DNA from DNase I, acid, and bile digestion for 50 min, 60 min, and 180 min, respectively. The in vitro duodenal apparent permeability coefficient of pCMV-lacZ calculated from a steady state flux was increased from 49.2 ± 21.6 × 10(-10) cm/s of naked DNA to 395.6 ± 142.2 × 10(-10) cm/s of pCMV-lacZ/PNT formulation. The permeation of pCMV-lacZ formulated with PNTs was found in an energy-dependent process. Furthermore, β-galatosidase (β-Gal) activity in tissues was quantitatively assessed using chlorophenol red-β-D-galactopyranoside (CPRG) and was significantly increased by 41% in the kidneys at 48 h and by 49, 63, and 46% in the stomach, duodenum, and liver, respectively, at 72 h after the first dose of oral delivery of pCMV-lacZ/PNT formulation. The organs with β-Gal activity were confirmed for the presence of pCMV-lacZ DNA with Southern blotting analysis and intracellular tracing the TM-rhodamine-labeled DNA and the presence of mRNA by reverse transcription-real time quantitative PCR (RT-qPCR). Another plasmid (pCMV-hRluc) encoding Renilla reniformis luciferase was used to confirm the results. An increased hRluc mRNA and luciferase in stomach, duodenum, liver, and kidney were detected by RT-qPCR, ex vivo bioluminescence imaging, luciferase activity quantification, and immunostaining, respectively.
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Affiliation(s)
- Wei-Hsien Hsieh
- College of Pharmacy, Taipei Medical University, 250 Wu Hsing Street, Taipei 110, Taiwan
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16
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Liang Z, Liu Y, Li X, Wu Q, Yu J, Luo S, Lai L, Liu S. Surface-modified gold nanoshells for enhanced cellular uptake. J Biomed Mater Res A 2011; 98:479-87. [PMID: 21681940 DOI: 10.1002/jbm.a.33068] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2010] [Revised: 01/24/2011] [Accepted: 01/25/2011] [Indexed: 11/09/2022]
Abstract
Gold nanoshells have shown a great potential for use as agents in a wide variety of biomedical applications, and some of which require the delivery of large numbers of gold nanoshells onto or into the cells. Here, we develop a ready method to enhance the cellular uptake of gold nanoshells by modifying with meso-2,3-dimercaptosuccinic acid (DMSA). The quantifiable technique of inductively coupled plasma atomic emissions spectroscopy (ICP-AES) and transmission electron microscopy (TEM) were used to investigate the cellular uptake of unmodified and DMSA-modified gold nanoshells. Three cell lines (RAW 264.7, A549, and BEL-7402) were involved and the results indicated that the cellular uptake of the DMSA-modified gold nanoshells was obviously enhanced versus the unmodified gold nanoshells. The reason possibly lies in the nonspecific adsorption of serum protein on the DMSA-modified gold nanoshells (DMSA-GNs), which consequently enhanced the cellular uptake. As a continued effort, in vitro experiments with endocytic inhibitors suggested the DMSA-GNs internalized into cells via receptor-mediated endocytosis (RME) pathway. This study has provided a valuable insight into the effects of surface modification on cellular uptake of nanoparticles.
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Affiliation(s)
- Zhongshi Liang
- Institute for Advanced Interdisciplinary Research, East China Normal University, Shanghai, China
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17
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Johnston AP, Such GK, Ng SL, Caruso F. Challenges facing colloidal delivery systems: From synthesis to the clinic. Curr Opin Colloid Interface Sci 2011. [DOI: 10.1016/j.cocis.2010.11.003] [Citation(s) in RCA: 88] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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18
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Can polymeric vesicles that confine enzymatic reactions act as simplified organelles? FEBS Lett 2011; 585:1699-706. [DOI: 10.1016/j.febslet.2011.05.003] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2011] [Revised: 05/02/2011] [Accepted: 05/03/2011] [Indexed: 01/08/2023]
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19
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Lehto T, Simonson OE, Mäger I, Ezzat K, Sork H, Copolovici DM, Viola JR, Zaghloul EM, Lundin P, Moreno PMD, Mäe M, Oskolkov N, Suhorutšenko J, Smith CIE, Andaloussi SEL. A peptide-based vector for efficient gene transfer in vitro and in vivo. Mol Ther 2011; 19:1457-67. [PMID: 21343913 DOI: 10.1038/mt.2011.10] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Finding suitable nonviral delivery vehicles for nucleic acid-based therapeutics is a landmark goal in gene therapy. Cell-penetrating peptides (CPPs) are one class of delivery vectors that has been exploited for this purpose. However, since CPPs use endocytosis to enter cells, a large fraction of peptides remain trapped in endosomes. We have previously reported that stearylation of amphipathic CPPs, such as transportan 10 (TP10), dramatically increases transfection of oligonucleotides in vitro partially by promoting endosomal escape. Therefore, we aimed to evaluate whether stearyl-TP10 could be used for the delivery of plasmids as well. Our results demonstrate that stearyl-TP10 forms stable nanoparticles with plasmids that efficiently enter different cell-types in a ubiquitous manner, including primary cells, resulting in significantly higher gene expression levels than when using stearyl-Arg9 or unmodified CPPs. In fact, the transfection efficacy of stearyl-TP10 almost reached the levels of Lipofectamine 2000 (LF2000), however, without any of the observed lipofection-associated toxicities. Most importantly, stearyl-TP10/plasmid nanoparticles are nonimmunogenic, mediate efficient gene delivery in vivo, when administrated intramuscularly (i.m.) or intradermally (i.d.) without any associated toxicity in mice.
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Affiliation(s)
- Taavi Lehto
- Laboratory of Molecular Biotechnology, Institute of Technology, University of Tartu, Tartu, Estonia.
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20
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Andaloussi SEL, Lehto T, Mäger I, Rosenthal-Aizman K, Oprea II, Simonson OE, Sork H, Ezzat K, Copolovici DM, Kurrikoff K, Viola JR, Zaghloul EM, Sillard R, Johansson HJ, Said Hassane F, Guterstam P, Suhorutšenko J, Moreno PMD, Oskolkov N, Hälldin J, Tedebark U, Metspalu A, Lebleu B, Lehtiö J, Smith CIE, Langel U. Design of a peptide-based vector, PepFect6, for efficient delivery of siRNA in cell culture and systemically in vivo. Nucleic Acids Res 2011; 39:3972-87. [PMID: 21245043 PMCID: PMC3089457 DOI: 10.1093/nar/gkq1299] [Citation(s) in RCA: 214] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
While small interfering RNAs (siRNAs) have been rapidly appreciated to silence genes, efficient and non-toxic vectors for primary cells and for systemic in vivo delivery are lacking. Several siRNA-delivery vehicles, including cell-penetrating peptides (CPPs), have been developed but their utility is often restricted by entrapment following endocytosis. Hence, developing CPPs that promote endosomal escape is a prerequisite for successful siRNA implementation. We here present a novel CPP, PepFect 6 (PF6), comprising the previously reported stearyl-TP10 peptide, having pH titratable trifluoromethylquinoline moieties covalently incorporated to facilitate endosomal release. Stable PF6/siRNA nanoparticles enter entire cell populations and rapidly promote endosomal escape, resulting in robust RNAi responses in various cell types (including primary cells), with minimal associated transcriptomic or proteomic changes. Furthermore, PF6-mediated delivery is independent of cell confluence and, in most cases, not significantly hampered by serum proteins. Finally, these nanoparticles promote strong RNAi responses in different organs following systemic delivery in mice without any associated toxicity. Strikingly, similar knockdown in liver is achieved by PF6/siRNA nanoparticles and siRNA injected by hydrodynamic infusion, a golden standard technique for liver transfection. These results imply that the peptide, in addition to having utility for RNAi screens in vitro, displays therapeutic potential.
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Abstract
The Food and Drug Administration (FDA) and pharmaceutical industry have used standards to assess material biocompatibility, immunotoxicity, purity, and sterility (as well as many other properties) for several decades. Nanoparticle developers and manufacturers leverage well-established methods as much as possible. However, the unique properties of nanomaterials often interfere with standardized protocols, giving false-positive or false-negative results. This chapter provides details of some of the problems which can arise during the characterization of nanoparticle samples. Additionally, we discuss ways to identify, avoid, and resolve such interference, with emphasis on the use of inhibition and enhancement controls.
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Affiliation(s)
- Scott E McNeil
- Nanotechnology Characterization Laboratory, Advanced Technology Program, SAIC-Frederick, Inc., National Cancer Institute at Frederick, Frederick, MD, USA.
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22
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Tropism-modification strategies for targeted gene delivery using adenoviral vectors. Viruses 2010; 2:2290-2355. [PMID: 21994621 PMCID: PMC3185574 DOI: 10.3390/v2102290] [Citation(s) in RCA: 90] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2010] [Accepted: 10/07/2010] [Indexed: 02/08/2023] Open
Abstract
Achieving high efficiency, targeted gene delivery with adenoviral vectors is a long-standing goal in the field of clinical gene therapy. To achieve this, platform vectors must combine efficient retargeting strategies with detargeting modifications to ablate native receptor binding (i.e. CAR/integrins/heparan sulfate proteoglycans) and “bridging” interactions. “Bridging” interactions refer to coagulation factor binding, namely coagulation factor X (FX), which bridges hepatocyte transduction in vivo through engagement with surface expressed heparan sulfate proteoglycans (HSPGs). These interactions can contribute to the off-target sequestration of Ad5 in the liver and its characteristic dose-limiting hepatotoxicity, thereby significantly limiting the in vivo targeting efficiency and clinical potential of Ad5-based therapeutics. To date, various approaches to retargeting adenoviruses (Ad) have been described. These include genetic modification strategies to incorporate peptide ligands (within fiber knob domain, fiber shaft, penton base, pIX or hexon), pseudotyping of capsid proteins to include whole fiber substitutions or fiber knob chimeras, pseudotyping with non-human Ad species or with capsid proteins derived from other viral families, hexon hypervariable region (HVR) substitutions and adapter-based conjugation/crosslinking of scFv, growth factors or monoclonal antibodies directed against surface-expressed target antigens. In order to maximize retargeting, strategies which permit detargeting from undesirable interactions between the Ad capsid and components of the circulatory system (e.g. coagulation factors, erythrocytes, pre-existing neutralizing antibodies), can be employed simultaneously. Detargeting can be achieved by genetic ablation of native receptor-binding determinants, ablation of “bridging interactions” such as those which occur between the hexon of Ad5 and coagulation factor X (FX), or alternatively, through the use of polymer-coated “stealth” vectors which avoid these interactions. Simultaneous retargeting and detargeting can be achieved by combining multiple genetic and/or chemical modifications.
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23
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Souto EB, Müller RH. Lipid nanoparticles: effect on bioavailability and pharmacokinetic changes. Handb Exp Pharmacol 2010:115-41. [PMID: 20217528 DOI: 10.1007/978-3-642-00477-3_4] [Citation(s) in RCA: 118] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
The main aim of pharmaceutical technology research is the design of successful formulations for effective therapy, taking into account several issues including therapeutic requirements and patient compliance. In this regard, several achievements have been reported with colloidal carriers, in particular with lipid nanoparticles, due to their unique physicochemical properties. For several years these carriers have been showing potential success for several administration routes, namely oral, dermal, parenteral, and, more recently, for pulmonary and brain targeting. The present chapter provides a review of the use of solid lipid nanoparticles (SLN) and nanostructured lipid carriers (NLC) to modify the release profile and the pharmacokinetic parameters of active pharmaceutical ingredients (APIs) incorporated in these lipid matrices, aiming to modify the API bioavailability, either upwards or downwards depending on the therapeutic requirement. Definitions of the morphological characteristics, surface properties, and polymorphic structures will also be given, emphasizing their influence on the incorporation parameters of the API, such as yield of production, loading capacity, and encapsulation efficiency.
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Affiliation(s)
- Eliana B Souto
- Faculty of Health Sciences, Fernando Pessoa University, Rua Carlos da Maia, 296, P-4200-150, Porto, Portugal.
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24
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França A, Pelaz B, Moros M, Sánchez-Espinel C, Hernández A, Fernández-López C, Grazú V, de la Fuente JM, Pastoriza-Santos I, Liz-Marzán LM, González-Fernández A. Sterilization matters: consequences of different sterilization techniques on gold nanoparticles. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2010; 6:89-95. [PMID: 19937607 DOI: 10.1002/smll.200901006] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Nanoparticles (NPs) can offer many advantages over traditional drug design and delivery, as well as toward medical diagnostics. As with any medical device or pharmaceutical drug intended to be used for in vivo biomedical applications, NPs must be sterile. However, very little is known regarding the effect of sterilization methods on the intrinsic properties and stability of NPs. Herein a detailed analysis of physicochemical properties of two types of AuNPs upon sterilization by means of five different techniques is reported. In addition, cell viability and production of reactive oxygen species are studied. The results indicate that sterilization by ethylene oxide seems to be the most appropriate technique for both types of NPs. It is concluded that it is crucial to test several methods in order to establish the specific type of sterilization to be performed for each particular NP.
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Affiliation(s)
- Angela França
- Immunology Area and Unidad Compartida Complejo Hospitalario, Universitario de Vigo, Edificio Ciencias Experimentales, University of Vigo, Campus As Lagoas-Marcosende, 36310 Vigo, Spain
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25
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Christian DA, Garbuzenko OB, Minko T, Discher DE. Polymer Vesicles with a Red Cell-like Surface Charge: Microvascular Imaging and in vivo Tracking with Near-Infrared Fluorescence. Macromol Rapid Commun 2009; 31:135-41. [DOI: 10.1002/marc.200900589] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2009] [Revised: 09/27/2009] [Indexed: 11/07/2022]
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26
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Differential proteomics analysis of the surface heterogeneity of dextran iron oxide nanoparticles and the implications for their in vivo clearance. Biomaterials 2009; 30:3926-33. [PMID: 19394687 DOI: 10.1016/j.biomaterials.2009.03.056] [Citation(s) in RCA: 123] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2009] [Accepted: 03/26/2009] [Indexed: 12/31/2022]
Abstract
In order to understand the role of plasma proteins in the rapid liver clearance of dextran-coated superparamagnetic iron oxide (SPIO) in vivo, we analyzed the full repertoire of SPIO-binding blood proteins using novel two-dimensional differential mass spectrometry approach. The identified proteins showed specificity for surface domains of the nanoparticles: mannan-binding lectins bound to the dextran coating, histidine-rich glycoprotein and kininogen bound to the iron oxide part, and the complement lectin and contact clotting factors were secondary binders. Nanoparticle clearance studies in knockout mice suggested that these proteins, as well as several previously identified opsonins, do not play a significant role in the SPIO clearance. However, both the dextran coat and the iron oxide core remained accessible to specific probes after incubation of SPIO in plasma, suggesting that the nanoparticle surface could be available for recognition by macrophages, regardless of protein coating. These data provide guidance to rational design of bioinert, long-circulating nanoparticles.
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27
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In vivo retargeting of adenovirus type 5 to alphavbeta6 integrin results in reduced hepatotoxicity and improved tumor uptake following systemic delivery. J Virol 2009; 83:6416-28. [PMID: 19369326 DOI: 10.1128/jvi.00445-09] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
A key impediment to successful cancer therapy with adenoviral vectors is the inefficient transduction of malignant tissue in vivo. Compounding this problem is the lack of cancer-specific targets, coupled with a shortage of corresponding high-efficiency ligands, permitting selective retargeting. The epithelial cell-specific integrin alphavbeta6 represents an attractive target for directed therapy since it is generally not expressed on normal epithelium but is upregulated in numerous carcinomas, where it plays a role in tumor progression. We previously have characterized a high-affinity, alphavbeta6-selective peptide (A20FMDV2) derived from VP1 of foot-and-mouth disease virus. We generated recombinant adenovirus type 5 (Ad5) fiber knob, incorporating A20FMDV2 in the HI loop, for which we validated the selectivity of binding and functional inhibition of alphavbeta6. The corresponding alphavbeta6-retargeted virus Ad5-EGFP(A20) exhibited up to 50-fold increases in coxsackievirus- and-adenovirus-receptor-independent transduction and up to 480-fold-increased cytotoxicity on a panel of alphavbeta6-positive human carcinoma lines compared with Ad5-EGFP(WT). Using an alphavbeta6-positive (DX3-beta6) xenograft model, we observed a approximately 2-fold enhancement in tumor uptake over Ad5-EGFP(WT) following systemic delivery. Furthermore, approximately 5-fold-fewer Ad5-EGFP(A20) genomes were detected in the liver (P = 0.0002), correlating with reduced serum transaminase levels and E1A expression. Warfarin pretreatment, to deplete coagulation factors, did not improve tumor uptake significantly with either virus but did significantly reduce liver sequestration and hepatic toxicity. The ability of Ad5-EGFP(A20) to improve delivery to alphavbeta6, combined with its reduced hepatic tropism and toxicity, highlights its potential as a prototype virus for future clinical investigation.
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28
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Abstract
This article provides an overview of principles and barriers relevant to intracellular drug and gene transport, accumulation and retention (collectively called as drug delivery) by means of nanovehicles (NV). The aim is to deliver a cargo to a particular intracellular site, if possible, to exert a local action. Some of the principles discussed in this article apply to noncolloidal drugs that are not permeable to the plasma membrane or to the blood-brain barrier. NV are defined as a wide range of nanosized particles leading to colloidal objects which are capable of entering cells and tissues and delivering a cargo intracelullarly. Different localization and targeting means are discussed. Limited discussion on pharmacokinetics and pharmacodynamics is also presented. NVs are contrasted to micro-delivery and current nanotechnologies which are already in commercial use. Newer developments in NV technologies are outlined and future applications are stressed. We also briefly review the existing modeling tools and approaches to quantitatively describe the behavior of targeted NV within the vascular and tumor compartments, an area of particular importance. While we list "elementary" phenomena related to different level of complexity of delivery to cancer, we also stress importance of multi-scale modeling and bottom-up systems biology approach.
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Affiliation(s)
- Ales Prokop
- Department of Chemical Engineering, 24th Avenue & Garland Avenues, 107 Olin Hall, Vanderbilt University, Nashville, Tennessee 37235, USA.
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29
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Haisma HJ, Kamps JAAM, Kamps GK, Plantinga JA, Rots MG, Bellu AR. Polyinosinic acid enhances delivery of adenovirus vectors in vivo by preventing sequestration in liver macrophages. J Gen Virol 2008; 89:1097-1105. [PMID: 18420786 DOI: 10.1099/vir.0.83495-0] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Adenovirus is among the preferred vectors for gene therapy because of its superior in vivo gene-transfer efficiency. However, upon systemic administration, adenovirus is preferentially sequestered by the liver, resulting in reduced adenovirus-mediated transgene expression in targeted tissues. In the liver, Kupffer cells are responsible for adenovirus degradation and contribute to the inflammatory response. As scavenger receptors present on Kupffer cells are responsible for the elimination of blood-borne pathogens, we investigated the possible implication of these receptors in the clearance of the adenovirus vector. Polyinosinic acid [poly(I)], a scavenger receptor A ligand, was analysed for its capability to inhibit adenovirus uptake specifically in macrophages. In in vitro studies, the addition of poly(I) before virus infection resulted in a specific inhibition of adenovirus-induced gene expression in a J774 macrophage cell line and in primary Kupffer cells. In in vivo experiments, pre-administration of poly(I) caused a 10-fold transient increase in the number of adenovirus particles circulating in the blood. As a consequence, transgene expression levels measured in different tissues were enhanced (by 5- to 15-fold) compared with those in animals that did not receive poly(I). Finally, necrosis of Kupffer cells, which normally occurs as a consequence of systemic adenovirus administration, was prevented by the use of poly(I). No toxicity, as measured by liver-enzyme levels, was observed after poly(I) treatment. From our data, we conclude that poly(I) can prevent adenovirus sequestration by liver macrophages. These results imply that, by inhibiting adenovirus uptake by Kupffer cells, it is possible to reduce the dose of the viral vector to diminish the liver-toxicity effect and to improve the level of transgene expression in target tissues. In systemic gene-therapy applications, this will have great impact on the development of targeted adenoviral vectors.
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Affiliation(s)
- Hidde J Haisma
- Department of Therapeutic Gene Modulation, Groningen University Institute for Drug Exploration, University of Groningen, The Netherlands
| | - Jan A A M Kamps
- Department of Pathology and Laboratory Medicine, Medical Biology Section, University Medical Center Groningen (UMCG), University of Groningen, The Netherlands
| | - Gera K Kamps
- Department of Therapeutic Gene Modulation, Groningen University Institute for Drug Exploration, University of Groningen, The Netherlands
| | - Josee A Plantinga
- Department of Therapeutic Gene Modulation, Groningen University Institute for Drug Exploration, University of Groningen, The Netherlands
| | - Marianne G Rots
- Department of Therapeutic Gene Modulation, Groningen University Institute for Drug Exploration, University of Groningen, The Netherlands
| | - Anna Rita Bellu
- Department of Therapeutic Gene Modulation, Groningen University Institute for Drug Exploration, University of Groningen, The Netherlands
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30
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Igarashi E. Factors affecting toxicity and efficacy of polymeric nanomedicines. Toxicol Appl Pharmacol 2008; 229:121-34. [DOI: 10.1016/j.taap.2008.02.007] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2007] [Revised: 01/23/2008] [Accepted: 02/03/2008] [Indexed: 11/26/2022]
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31
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Hall JB, Dobrovolskaia MA, Patri AK, McNeil SE. Characterization of nanoparticles for therapeutics. Nanomedicine (Lond) 2008; 2:789-803. [PMID: 18095846 DOI: 10.2217/17435889.2.6.789] [Citation(s) in RCA: 210] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Nanotechnology offers many advantages to traditional drug design, delivery and medical diagnostics; however, nanomedicines present considerable challenges for preclinical development. Nanoparticle constructs intended for medical applications consist of a wide variety of materials, and their small size, unique physicochemical properties and biological activity often require modification of standard characterization techniques. A rational characterization strategy for nanomedicines includes physicochemical characterization, sterility and pyrogenicity assessment, biodistribution (absorption, distribution, metabolism and excretion [ADME]) and toxicity characterization, which includes both in vitro tests and in vivo animal studies. Here, we highlight progress for a few methods that are uniquely useful for nanoparticles or are indicative of their toxicity or efficacy.
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Affiliation(s)
- Jennifer B Hall
- SAIC-Frederick Inc., Nanotechnology Characterization Laboratory, Advanced Technology Program, NCI-Frederick, 1050 Boyles St., Bldg. 469, Frederick, MD 21702, USA
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