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Matos AI, Peres C, Carreira B, Moura LIF, Acúrcio RC, Vogel T, Wegener E, Ribeiro F, Afonso MB, Santos FMF, Martínez‐Barriocanal Á, Arango D, Viana AS, Góis PMP, Silva LC, Rodrigues CMP, Graca L, Jordan R, Satchi‐Fainaro R, Florindo HF. Polyoxazoline-Based Nanovaccine Synergizes with Tumor-Associated Macrophage Targeting and Anti-PD-1 Immunotherapy against Solid Tumors. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2300299. [PMID: 37434063 PMCID: PMC10477894 DOI: 10.1002/advs.202300299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 06/22/2023] [Indexed: 07/13/2023]
Abstract
Immune checkpoint blockade reaches remarkable clinical responses. However, even in the most favorable cases, half of these patients do not benefit from these therapies in the long term. It is hypothesized that the activation of host immunity by co-delivering peptide antigens, adjuvants, and regulators of the transforming growth factor (TGF)-β expression using a polyoxazoline (POx)-poly(lactic-co-glycolic) acid (PLGA) nanovaccine, while modulating the tumor-associated macrophages (TAM) function within the tumor microenvironment (TME) and blocking the anti-programmed cell death protein 1 (PD-1) can constitute an alternative approach for cancer immunotherapy. POx-Mannose (Man) nanovaccines generate antigen-specific T-cell responses that control tumor growth to a higher extent than poly(ethylene glycol) (PEG)-Man nanovaccines. This anti-tumor effect induced by the POx-Man nanovaccines is mediated by a CD8+ -T cell-dependent mechanism, in contrast to the PEG-Man nanovaccines. POx-Man nanovaccine combines with pexidartinib, a modulator of the TAM function, restricts the MC38 tumor growth, and synergizes with PD-1 blockade, controlling MC38 and CT26 tumor growth and survival. This data is further validated in the highly aggressive and poorly immunogenic B16F10 melanoma mouse model. Therefore, the synergistic anti-tumor effect induced by the combination of nanovaccines with the inhibition of both TAM- and PD-1-inducing immunosuppression, holds great potential for improving immunotherapy outcomes in solid cancer patients.
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Affiliation(s)
- Ana I. Matos
- Grouf of BioNanoSciences ‐ Drug Delivery and Immunoengineering, Research Institute for Medicines (iMed.ULisboa), Department of Pharmacy, Pharmacology and Health TechnologiesFaculty of PharmacyUniversidade de LisboaLisbon1649‐003Portugal
- Faculdade de Medicina, Instituto de Medicina Molecular João Lobo Antunes, Lisbon Academic Medical CenterUniversidade de LisboaLisbon1649‐028Portugal
| | - Carina Peres
- Grouf of BioNanoSciences ‐ Drug Delivery and Immunoengineering, Research Institute for Medicines (iMed.ULisboa), Department of Pharmacy, Pharmacology and Health TechnologiesFaculty of PharmacyUniversidade de LisboaLisbon1649‐003Portugal
- Faculdade de Medicina, Instituto de Medicina Molecular João Lobo Antunes, Lisbon Academic Medical CenterUniversidade de LisboaLisbon1649‐028Portugal
| | - Barbara Carreira
- Grouf of BioNanoSciences ‐ Drug Delivery and Immunoengineering, Research Institute for Medicines (iMed.ULisboa), Department of Pharmacy, Pharmacology and Health TechnologiesFaculty of PharmacyUniversidade de LisboaLisbon1649‐003Portugal
| | - Liane I. F. Moura
- Grouf of BioNanoSciences ‐ Drug Delivery and Immunoengineering, Research Institute for Medicines (iMed.ULisboa), Department of Pharmacy, Pharmacology and Health TechnologiesFaculty of PharmacyUniversidade de LisboaLisbon1649‐003Portugal
| | - Rita C. Acúrcio
- Grouf of BioNanoSciences ‐ Drug Delivery and Immunoengineering, Research Institute for Medicines (iMed.ULisboa), Department of Pharmacy, Pharmacology and Health TechnologiesFaculty of PharmacyUniversidade de LisboaLisbon1649‐003Portugal
| | - Theresa Vogel
- Department of Chemistry, Faculty of Chemistry and Food Chemistry, School of ScienceTechnische Universität Dresden01062DresdenGermany
| | - Erik Wegener
- Department of Chemistry, Faculty of Chemistry and Food Chemistry, School of ScienceTechnische Universität Dresden01062DresdenGermany
| | - Filipa Ribeiro
- Faculdade de Medicina, Instituto de Medicina Molecular João Lobo Antunes, Lisbon Academic Medical CenterUniversidade de LisboaLisbon1649‐028Portugal
| | - Marta B. Afonso
- Grouf of BioNanoSciences ‐ Drug Delivery and Immunoengineering, Research Institute for Medicines (iMed.ULisboa), Department of Pharmacy, Pharmacology and Health TechnologiesFaculty of PharmacyUniversidade de LisboaLisbon1649‐003Portugal
| | - Fábio M. F. Santos
- Grouf of BioNanoSciences ‐ Drug Delivery and Immunoengineering, Research Institute for Medicines (iMed.ULisboa), Department of Pharmacy, Pharmacology and Health TechnologiesFaculty of PharmacyUniversidade de LisboaLisbon1649‐003Portugal
| | - Águeda Martínez‐Barriocanal
- Group of Biomedical Research in Digestive Tract TumorsCIBBIM‐NanomedicineVall d'Hebron Research Institute (VHIR)Universitat Autònoma de Barcelona (UAB)Barcelona08035Spain
- Group of Molecular OncologyLleida Biomedical Research Institute (IRBLleida)Lleida25198Spain
| | - Diego Arango
- Group of Biomedical Research in Digestive Tract TumorsCIBBIM‐NanomedicineVall d'Hebron Research Institute (VHIR)Universitat Autònoma de Barcelona (UAB)Barcelona08035Spain
- Group of Molecular OncologyLleida Biomedical Research Institute (IRBLleida)Lleida25198Spain
| | - Ana S. Viana
- Centro de Química EstruturalDepartamento de Química e BioquímicaInstitute of Molecular SciencesFaculty of SciencesUniversidade de LisboaLisbon1749‐016Portugal
| | - Pedro M. P. Góis
- Grouf of BioNanoSciences ‐ Drug Delivery and Immunoengineering, Research Institute for Medicines (iMed.ULisboa), Department of Pharmacy, Pharmacology and Health TechnologiesFaculty of PharmacyUniversidade de LisboaLisbon1649‐003Portugal
| | - Liana C. Silva
- Grouf of BioNanoSciences ‐ Drug Delivery and Immunoengineering, Research Institute for Medicines (iMed.ULisboa), Department of Pharmacy, Pharmacology and Health TechnologiesFaculty of PharmacyUniversidade de LisboaLisbon1649‐003Portugal
| | - Cecília M. P. Rodrigues
- Grouf of BioNanoSciences ‐ Drug Delivery and Immunoengineering, Research Institute for Medicines (iMed.ULisboa), Department of Pharmacy, Pharmacology and Health TechnologiesFaculty of PharmacyUniversidade de LisboaLisbon1649‐003Portugal
| | - Luis Graca
- Faculdade de Medicina, Instituto de Medicina Molecular João Lobo Antunes, Lisbon Academic Medical CenterUniversidade de LisboaLisbon1649‐028Portugal
| | - Rainer Jordan
- Department of Chemistry, Faculty of Chemistry and Food Chemistry, School of ScienceTechnische Universität Dresden01062DresdenGermany
| | - Ronit Satchi‐Fainaro
- Department of Physiology and PharmacologyFaculty of MedicineSagol School of NeuroscienceTel Aviv UniversityTel Aviv69978Israel
| | - Helena F. Florindo
- Grouf of BioNanoSciences ‐ Drug Delivery and Immunoengineering, Research Institute for Medicines (iMed.ULisboa), Department of Pharmacy, Pharmacology and Health TechnologiesFaculty of PharmacyUniversidade de LisboaLisbon1649‐003Portugal
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Ahmad MY, Yue H, Tegafaw T, Liu S, Ho SL, Lee GH, Nam SW, Chang Y. Functionalized Lanthanide Oxide Nanoparticles for Tumor Targeting, Medical Imaging, and Therapy. Pharmaceutics 2021; 13:1890. [PMID: 34834305 PMCID: PMC8624040 DOI: 10.3390/pharmaceutics13111890] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 10/29/2021] [Accepted: 11/05/2021] [Indexed: 12/17/2022] Open
Abstract
Recent progress in functionalized lanthanide oxide (Ln2O3) nanoparticles for tumor targeting, medical imaging, and therapy is reviewed. Among the medical imaging techniques, magnetic resonance imaging (MRI) is an important noninvasive imaging tool for tumor diagnosis due to its high spatial resolution and excellent imaging contrast, especially when contrast agents are used. However, commercially available low-molecular-weight MRI contrast agents exhibit several shortcomings, such as nonspecificity for the tissue of interest and rapid excretion in vivo. Recently, nanoparticle-based MRI contrast agents have become a hot research topic in biomedical imaging due to their high performance, easy surface functionalization, and low toxicity. Among them, functionalized Ln2O3 nanoparticles are applicable as MRI contrast agents for tumor-targeting and nontumor-targeting imaging and image-guided tumor therapy. Primarily, Gd2O3 nanoparticles have been intensively investigated as tumor-targeting T1 MRI contrast agents. T2 MRI is also possible due to the appreciable paramagnetic moments of Ln2O3 nanoparticles (Ln = Dy, Ho, and Tb) at room temperature arising from the nonzero orbital motion of 4f electrons. In addition, Ln2O3 nanoparticles are eligible as X-ray computed tomography contrast agents because of their high X-ray attenuation power. Since nanoparticle toxicity is of great concern, recent toxicity studies on Ln2O3 nanoparticles are also discussed.
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Affiliation(s)
- Mohammad Yaseen Ahmad
- Department of Chemistry, College of Natural Sciences, Kyungpook National University, Taegu 41566, Korea; (M.Y.A.); (H.Y.); (T.T.); (S.L.); (S.L.H.)
| | - Huan Yue
- Department of Chemistry, College of Natural Sciences, Kyungpook National University, Taegu 41566, Korea; (M.Y.A.); (H.Y.); (T.T.); (S.L.); (S.L.H.)
| | - Tirusew Tegafaw
- Department of Chemistry, College of Natural Sciences, Kyungpook National University, Taegu 41566, Korea; (M.Y.A.); (H.Y.); (T.T.); (S.L.); (S.L.H.)
| | - Shuwen Liu
- Department of Chemistry, College of Natural Sciences, Kyungpook National University, Taegu 41566, Korea; (M.Y.A.); (H.Y.); (T.T.); (S.L.); (S.L.H.)
| | - Son Long Ho
- Department of Chemistry, College of Natural Sciences, Kyungpook National University, Taegu 41566, Korea; (M.Y.A.); (H.Y.); (T.T.); (S.L.); (S.L.H.)
| | - Gang Ho Lee
- Department of Chemistry, College of Natural Sciences, Kyungpook National University, Taegu 41566, Korea; (M.Y.A.); (H.Y.); (T.T.); (S.L.); (S.L.H.)
| | - Sung-Wook Nam
- Department of Molecular Medicine, School of Medicine, Kyungpook National University, Taegu 41405, Korea;
| | - Yongmin Chang
- Department of Molecular Medicine, School of Medicine, Kyungpook National University, Taegu 41405, Korea;
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Ridwan SM, El-Tayyeb F, Hainfeld JF, Smilowitz HM. Distributions of intravenous injected iodine nanoparticles in orthotopic u87 human glioma xenografts over time and tumor therapy. Nanomedicine (Lond) 2020; 15:2369-2383. [PMID: 32975163 PMCID: PMC7610150 DOI: 10.2217/nnm-2020-0178] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 08/13/2020] [Indexed: 01/15/2023] Open
Abstract
Aim: To analyze the localization, distribution and effect of iodine nanoparticles (INPs) on radiation therapy (RT) in advanced intracerebral gliomas over time after intravenous injection. Materials & methods: Luciferase/td-tomato expressing U87 human glioma cells were implanted into mice which were injected intravenously with INPs. Mice with gliomas were followed for tumor progression and survival. Immune-stained mouse brain sections were examined and quantified by confocal fluorescence microscopy. Results: INPs injected intravenously 3 days prior to RT, compared with 1 day, showed greater association with CD31-staining structures, accumulated inside tumor cells more, covered more of the tumor cell surface and trended toward increased median survival. Conclusion: INP persistence and redistribution in tumors over time may enable greater RT enhancement and clinically relevant hypo-fractionated-RT and may enhance INP efficacy.
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Affiliation(s)
- Sharif M Ridwan
- Department of Cell Biology, University of Connecticut Health Center, 263 Farmington Avenue, Farmington, CT 06030, USA
| | - Ferris El-Tayyeb
- Department of Cell Biology, University of Connecticut Health Center, 263 Farmington Avenue, Farmington, CT 06030, USA
| | - James F Hainfeld
- Nanoprobes, Inc., 95 Horseblock Road, Unit 1, Yaphank, NY 11980, USA
| | - Henry M Smilowitz
- Department of Cell Biology, University of Connecticut Health Center, 263 Farmington Avenue, Farmington, CT 06030, USA
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Nie Z, Luo N, Liu J, Zhang Y, Zeng X, Su D. Dual-Mode Contrast Agents with RGD-Modified Polymer for Tumour-Targeted US/NIRF Imaging. Onco Targets Ther 2020; 13:8919-8929. [PMID: 32982284 PMCID: PMC7495348 DOI: 10.2147/ott.s256044] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Accepted: 08/06/2020] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND Cancer diagnosis and treatment during the early stages of disease remain extremely challenging clinical tasks. The development of effective multimode contrast agents could greatly facilitate the early detection of cancer. MATERIALS AND METHODS We prepared dual-mode contrast agents using a biotin/avidin bioamplification system. Through in vivo and in vitro experiments, we verified the imaging performance of this contrast agents in both fluorescence and ultrasound and its targeting specificity for MDA-MB-231 cells. RESULTS The RGD peptide-labelled microbubbles showed excellent targeting of αvβ3 integrin expressed by MDA-MB-231 cells in vitro and in vivo. The signal intensity and time duration of ultrasound imaging using these particles were superior to those obtained with a typical ultrasound contrast agent in the clinic. The tumour areas also demonstrated high Cy5.5 accumulation by fluorescence imaging. CONCLUSION The results show that this targeted dual-mode imaging system yields outstanding US/NIRF imaging results, possibly allowing the early clinical diagnosis of cancer.
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Affiliation(s)
- Zhenhui Nie
- Department of Radiology, Affiliated Tumour Hospital of Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
| | - Ningbin Luo
- Department of Radiology, Affiliated Tumour Hospital of Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
| | - Junjie Liu
- Department of Medical Ultrasound, Affiliated Tumour Hospital of Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
| | - Yu Zhang
- Department of Radiology, Affiliated Tumour Hospital of Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
| | - Xinyi Zeng
- Department of Radiology, Affiliated Tumour Hospital of Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
| | - Danke Su
- Department of Radiology, Affiliated Tumour Hospital of Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
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Rios De La Rosa JM, Spadea A, Donno R, Lallana E, Lu Y, Puri S, Caswell P, Lawrence MJ, Ashford M, Tirelli N. Microfluidic-assisted preparation of RGD-decorated nanoparticles: exploring integrin-facilitated uptake in cancer cell lines. Sci Rep 2020; 10:14505. [PMID: 32879363 PMCID: PMC7468293 DOI: 10.1038/s41598-020-71396-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Accepted: 08/06/2020] [Indexed: 12/21/2022] Open
Abstract
This study is about fine tuning the targeting capacity of peptide-decorated nanoparticles to discriminate between cells that express different integrin make-ups. Using microfluidic-assisted nanoprecipitation, we have prepared poly(lactic acid-co-glycolic acid) (PLGA) nanoparticles with a PEGylated surface decorated with two different arginine-glycine-aspartic acid (RGD) peptides: one is cyclic (RGDFC) and has specific affinity towards αvβ3 integrin heterodimers; the other is linear (RGDSP) and is reported to bind equally αvβ3 and α5β1. We have then evaluated the nanoparticle internalization in two cell lines with a markedly different integrin fingerprint: ovarian carcinoma A2780 (almost no αvβ3, moderate in α5β1) and glioma U87MG (very high in αvβ3, moderate/high in α5β1). As expected, particles with cyclic RGD were heavily internalized by U87MG (proportional to the peptide content and abrogated by anti-αvβ3) but not by A2780 (same as PEGylated particles). The linear peptide, on the other hand, did not differentiate between the cell lines, and the uptake increase vs. control particles was never higher than 50%, indicating a possible low and unselective affinity for various integrins. The strong preference of U87MG for cyclic (vs. linear) peptide-decorated nanoparticles was shown in 2D culture and further demonstrated in spheroids. Our results demonstrate that targeting specific integrin make-ups is possible and may open the way to more precise treatment, but more efforts need to be devoted to a better understanding of the relation between RGD structure and their integrin-binding capacity.
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Affiliation(s)
- Julio M Rios De La Rosa
- North West Centre for Advanced Drug Delivery (NoWCADD), School of Health Sciences, University of Manchester, Oxford Road, Manchester, M13 9PT, UK.
- Cambridge Enterprise Limited, University of Cambridge, The Hauser Forum, 3 Charles Babbage Road, Cambridge, CB3 0GT, UK.
| | - Alice Spadea
- North West Centre for Advanced Drug Delivery (NoWCADD), School of Health Sciences, University of Manchester, Oxford Road, Manchester, M13 9PT, UK
| | - Roberto Donno
- North West Centre for Advanced Drug Delivery (NoWCADD), School of Health Sciences, University of Manchester, Oxford Road, Manchester, M13 9PT, UK
- Laboratory for Polymers and Biomaterials, Fondazione Istituto Italiano di Tecnologia, 16163, Genova, Italy
| | - Enrique Lallana
- North West Centre for Advanced Drug Delivery (NoWCADD), School of Health Sciences, University of Manchester, Oxford Road, Manchester, M13 9PT, UK
| | - Yu Lu
- North West Centre for Advanced Drug Delivery (NoWCADD), School of Health Sciences, University of Manchester, Oxford Road, Manchester, M13 9PT, UK
| | - Sanyogitta Puri
- Advanced Drug Delivery, Pharmaceutical Sciences, R & D, AstraZeneca, Cambridge, UK
| | - Patrick Caswell
- Wellcome Trust Centre for Cell-Matrix Research, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, M13 9PT, UK
| | - M Jayne Lawrence
- North West Centre for Advanced Drug Delivery (NoWCADD), School of Health Sciences, University of Manchester, Oxford Road, Manchester, M13 9PT, UK
| | - Marianne Ashford
- Advanced Drug Delivery, Pharmaceutical Sciences, R & D, AstraZeneca, Macclesfield, UK
| | - Nicola Tirelli
- North West Centre for Advanced Drug Delivery (NoWCADD), School of Health Sciences, University of Manchester, Oxford Road, Manchester, M13 9PT, UK.
- Laboratory for Polymers and Biomaterials, Fondazione Istituto Italiano di Tecnologia, 16163, Genova, Italy.
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Nie Z, Luo N, Liu J, Zeng X, Zhang Y, Su D. Multi-mode biodegradable tumour-microenvironment sensitive nanoparticles for targeted breast cancer imaging. NANOSCALE RESEARCH LETTERS 2020; 15:81. [PMID: 32297036 PMCID: PMC7158979 DOI: 10.1186/s11671-020-03309-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Accepted: 03/25/2020] [Indexed: 05/07/2023]
Abstract
Gas-filled ultrasound (US) contrast agents easily collapse in the body, and the gas can easily overflow, which limits the effectiveness of US imaging. To address this issue, an injectable gas-generating multi-mode system was developed that carries the MR negative contrast agent Fe3O4, the fluorescent dye Cy5.5, and the CO2 releasing donor (Na2CO3). The nanoparticles can continuously generate carbon dioxide (CO2) gas in acidic tumour tissue in the body, giving the tumour a strong echo signal under ultrasonic imaging. In addition, the nanoparticles confer excellent effects for MR and fluorescence imaging of the tumour tissue. The results indicate that this pH-responsive NP system provides good effects in MR/US/fluorescent imaging. This study provides a useful reference for multi-mode tumour imaging.
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Affiliation(s)
- Zhenhui Nie
- Department of Radiology, Affiliated Tumour Hospital of Guangxi Medical University, No 71, Hedi Road, Nanning, 530021 Guangxi People’s Republic of China
| | - Ningbin Luo
- Department of Radiology, Affiliated Tumour Hospital of Guangxi Medical University, No 71, Hedi Road, Nanning, 530021 Guangxi People’s Republic of China
| | - Junjie Liu
- Department of Medical Ultrasound, Affiliated Tumour Hospital of Guangxi Medical University, No 71, Hedi Road, Nanning, 530021 Guangxi People’s Republic of China
| | - Xinyi Zeng
- Department of Radiology, Affiliated Tumour Hospital of Guangxi Medical University, No 71, Hedi Road, Nanning, 530021 Guangxi People’s Republic of China
| | - Yu Zhang
- Department of Radiology, Affiliated Tumour Hospital of Guangxi Medical University, No 71, Hedi Road, Nanning, 530021 Guangxi People’s Republic of China
| | - Danke Su
- Department of Radiology, Affiliated Tumour Hospital of Guangxi Medical University, No 71, Hedi Road, Nanning, 530021 Guangxi People’s Republic of China
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Shao X, Ma W, Xie X, Li Q, Lin S, Zhang T, Lin Y. Neuroprotective Effect of Tetrahedral DNA Nanostructures in a Cell Model of Alzheimer's Disease. ACS APPLIED MATERIALS & INTERFACES 2018; 10:23682-23692. [PMID: 29927573 DOI: 10.1021/acsami.8b07827] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Accumulating evidence supports the abnormal deposition of amyloid β-peptide (Aβ) as the main cause of Alzheimer's disease (AD). Therefore, fighting against the formation, deposition, and toxicity of Aβ is a basic strategy for the treatment of AD. In the process of in vitro nerve cell culture, screening out drugs that can antagonize a series of toxic reactions caused by β-amyloid deposition has become an effective method for the follow-up treatment of AD. Our previous studies showed that tetrahedral DNA nanostructures (TDNs) had good biocompatibility and had some positive effects on the biological behavior of cells. In this study, the main aim of our work was to explore the effects and potential mechanism of TDNs in protecting neuronal PC12 cells from the toxicity of Aβ. Our study demonstrated that TDNs can protect and rescue PC12 cell death through Aβ25-35-induced PC12 cell apoptosis. Further studies showed that TDNs significantly improved the apoptosis by affecting the abnormal cell cycle, restoring abnormal nuclear morphology and caspase activity. Western blot analysis showed that TDNs could prevent the damage caused by Aβ deposition by activating the ERK1/2 pathway and thus be a potential therapeutic agent with a neuroprotective effect in Alzheimer's disease. Our finding provides a potential application of TDNs in the prevention and treatment of AD.
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Affiliation(s)
- Xiaoru Shao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology , Sichuan University , Chengdu 610021 , China
| | - Wenjuan Ma
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology , Sichuan University , Chengdu 610021 , China
| | - Xueping Xie
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology , Sichuan University , Chengdu 610021 , China
| | - Qianshun Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology , Sichuan University , Chengdu 610021 , China
| | - Shiyu Lin
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology , Sichuan University , Chengdu 610021 , China
| | - Tao Zhang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology , Sichuan University , Chengdu 610021 , China
| | - Yunfeng Lin
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology , Sichuan University , Chengdu 610021 , China
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Look J, Wilhelm N, von Briesen H, Noske N, Günther C, Langer K, Gorjup E. Ligand-Modified Human Serum Albumin Nanoparticles for Enhanced Gene Delivery. Mol Pharm 2015. [PMID: 26218774 DOI: 10.1021/acs.molpharmaceut.5b00153] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The development of nonviral gene delivery systems is a great challenge to enable safe gene therapy. In this study, ligand-modified nanoparticles based on human serum albumin (HSA) were developed and optimized for an efficient gene therapy. Different glutaraldehyde cross-linking degrees were investigated to optimize the HSA nanoparticles for gene delivery. The peptide sequence arginine-glycine-aspartate (RGD) and the HIV-1 transactivator of transduction sequence (Tat) are well-known as promising targeting ligands. Plasmid DNA loaded HSA nanoparticles were covalently modified on their surface with these different ligands. The transfection potential of the obtained plasmid DNA loaded RGD- and Tat-modified nanoparticles was investigated in vitro, and optimal incubation conditions for these preparations were studied. It turned out that Tat-modified HSA nanoparticles with the lowest cross-linking degree of 20% showed the highest transfection potential. Taken together, ligand-functionalized HSA nanoparticles represent promising tools for efficient and safe gene therapy.
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Affiliation(s)
- Jennifer Look
- Institute of Pharmaceutical Technology and Biopharmacy, University of Muenster , Corrensstraße 48, Muenster 48149, Germany
| | - Nadine Wilhelm
- Fraunhofer Institute for Biomedical Engineering , Joseph-von-Fraunhofer-Weg 1, 66280 Sulzbach, Germany
| | - Hagen von Briesen
- Fraunhofer Institute for Biomedical Engineering , Joseph-von-Fraunhofer-Weg 1, 66280 Sulzbach, Germany
| | - Nadja Noske
- apceth GmbH & Co. KG , Max-Lebsche-Platz 30, 81377 Munich, Germany
| | | | - Klaus Langer
- Institute of Pharmaceutical Technology and Biopharmacy, University of Muenster , Corrensstraße 48, Muenster 48149, Germany
| | - Erwin Gorjup
- Fraunhofer Institute for Biomedical Engineering , Joseph-von-Fraunhofer-Weg 1, 66280 Sulzbach, Germany
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Yang J, Luo Y, Xu Y, Li J, Zhang Z, Wang H, Shen M, Shi X, Zhang G. Conjugation of iron oxide nanoparticles with RGD-modified dendrimers for targeted tumor MR imaging. ACS APPLIED MATERIALS & INTERFACES 2015; 7:5420-8. [PMID: 25695661 DOI: 10.1021/am508983n] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
This article reports a new approach for the synthesis of ultrasmall iron oxide nanoparticles (NPs) conjugated with Arg-Gly-Asp (RGD)-modified dendrimers (G5.NHAc-RGD-Fe3O4 NPs) as a platform for targeted magnetic resonance (MR) imaging of C6 glioma cells. Ultrasmall Fe3O4 NPs synthesized via a solvothermal route were conjugated with RGD peptide-modified generation-5 poly(amidoamine) dendrimers (G5.NH2-RGD). The final G5.NHAc-RGD-Fe3O4 NPs were formed following the acetylation of the remaining dendrimer terminal amines. The as-prepared multifunctional Fe3O4 NPs were characterized using various techniques. The results of a cell viability assay, cell morphological observation, and hemolysis assay indicated that the G5.NHAc-RGD-Fe3O4 NPs exhibit excellent cytocompatibility and hemocompatibility over the studied concentration range. In addition, RGD conjugated onto the Fe3O4 NPs allows for the efficient targeting of the particles to C6 cells that overexpress αvβ3 receptors, which was confirmed via in vitro cell MR imaging and cellular uptake. Finally, the G5.NHAc-RGD-Fe3O4 NPs were used in the targeted MR imaging of C6 glioma cells in mice. The results obtained from the current study indicate that the developed G5.NHAc-RGD-Fe3O4 NPs offer significant potential for use as contrast agents in the targeted MR imaging of different types of tumors.
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Affiliation(s)
- Jia Yang
- Department of Radiology, Shanghai First People's Hospital, School of Medicine, Shanghai Jiaotong University , Shanghai 200080, P. R. China
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van Dongen M, Dougherty CA, Banaszak Holl MM. Multivalent polymers for drug delivery and imaging: the challenges of conjugation. Biomacromolecules 2014; 15:3215-34. [PMID: 25120091 PMCID: PMC4157765 DOI: 10.1021/bm500921q] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Revised: 08/06/2014] [Indexed: 12/11/2022]
Abstract
Multivalent polymers offer a powerful opportunity to develop theranostic materials on the size scale of proteins that can provide targeting, imaging, and therapeutic functionality. Achieving this goal requires the presence of multiple targeting molecules, dyes, and/or drugs on the polymer scaffold. This critical review examines the synthetic, analytical, and functional challenges associated with the heterogeneity introduced by conjugation reactions as well as polymer scaffold design. First, approaches to making multivalent polymer conjugations are discussed followed by an analysis of materials that have shown particular promise biologically. Challenges in characterizing the mixed ligand distributions and the impact of these distributions on biological applications are then discussed. Where possible, molecular-level interpretations are provided for the structures that give rise to the functional ligand and molecular weight distributions present in the polymer scaffolds. Lastly, recent strategies employed for overcoming or minimizing the presence of ligand distributions are discussed. This review focuses on multivalent polymer scaffolds where average stoichiometry and/or the distribution of products have been characterized by at least one experimental technique. Key illustrative examples are provided for scaffolds that have been carried forward to in vitro and in vivo testing with significant biological results.
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Affiliation(s)
- Mallory
A. van Dongen
- Chemistry Department, University of Michigan, Ann Arbor, Michigan 48103, United States
| | - Casey A. Dougherty
- Chemistry Department, University of Michigan, Ann Arbor, Michigan 48103, United States
| | - Mark M. Banaszak Holl
- Chemistry Department, University of Michigan, Ann Arbor, Michigan 48103, United States
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Lee MM, Fekner T, Lu J, Heater BS, Behrman EJ, Zhang L, Hsu PH, Chan MK. Pyrrolysine-Inspired Protein Cyclization. Chembiochem 2014; 15:1769-72. [DOI: 10.1002/cbic.201402129] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2014] [Indexed: 11/05/2022]
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King WJ, Krebsbach PH. Cyclic-RGD peptides increase the adenoviral transduction of human mesenchymal stem cells. Stem Cells Dev 2013; 22:679-86. [PMID: 22958001 DOI: 10.1089/scd.2012.0379] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Human mesenchymal stem cells (hMSCs) have been extensively explored for drug delivery applications due to their safety, immunomodulatory properties, and ability to differentiate into new tissues. The experiments presented in this study were designed to determine peptide-based mechanisms to increase the adenoviral transduction of hMSCs for the purpose of improving their capacity as drug delivery vehicles. Specifically, we demonstrated that cyclic- RGD peptides increased the internalization of adenoviruses into MSCs. MSCs treated with cyclic-RGD peptides had a transduction efficiency of 76.6%±4%, which was significantly greater than the 23.5%±12.2% transduction efficiency of untreated stem cells (P<0.05). Blocking endocytosis with inhibitors of dynamin or actin polymerization decreased the cyclic-RGD-mediated increase in transduction efficiency. MSCs treated with cyclic-RGD and adenoviruses carrying the gene for bone morphogenetic protein-2 produced significantly greater concentrations of this growth factor compared to stem cells treated with only adenoviruses or adenoviruses cocultured with cyclic-RAD peptides. Furthermore, this stem cell-produced bone morphogenetic protein induced alkaline phosphatase expression in C2C12 cells indicating growth factor bioactivity. Taken together, these studies suggest that cyclic-RGD peptides could be used to increase the adenoviral transduction of hMSCs and increase their therapeutic potential.
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Affiliation(s)
- William J King
- Department of Biologic and Materials Sciences, University of Michigan School of Dentistry, Ann Arbor, Michigan 48109-1078, USA
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On the cellular processing of non-viral nanomedicines for nucleic acid delivery: Mechanisms and methods. J Control Release 2012; 161:566-81. [DOI: 10.1016/j.jconrel.2012.05.020] [Citation(s) in RCA: 117] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2011] [Revised: 05/11/2012] [Accepted: 05/11/2012] [Indexed: 11/24/2022]
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Abstract
Integrins have become key targets for molecular imaging and for selective delivery of anti-cancer agents. Here we review recent work concerning the targeted delivery of antisense and siRNA oligonucleotides via integrins. A variety of approaches have been used to link oligonucleotides to ligands capable of binding integrins with high specificity and affinity. This includes direct chemical conjugation, incorporating oligonucleotides into lipoplexes, and use of various polymeric nanocarriers including dendrimers. The ligand-oligonucleotide conjugate or complex associates selectively with the integrin, followed by internalization into endosomes and trafficking through subcellular compartments. Escape of antisense or siRNA from the endosome to the cytosol and nucleus may come about through endogenous trafficking mechanisms, or because of membrane disrupting capabilities built into the conjugate or complex. Thus a variety of useful strategies are available for using integrins to enhance the pharmacological efficacy of therapeutic oligonucleotides.
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von der Mark K, Park J, Bauer S, Schmuki P. Nanoscale engineering of biomimetic surfaces: cues from the extracellular matrix. Cell Tissue Res 2009; 339:131-53. [DOI: 10.1007/s00441-009-0896-5] [Citation(s) in RCA: 280] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2009] [Accepted: 10/08/2009] [Indexed: 11/29/2022]
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Effect of innate glutathione levels on activity of redox-responsive gene delivery vectors. J Control Release 2009; 141:77-84. [PMID: 19720098 DOI: 10.1016/j.jconrel.2009.08.022] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2009] [Revised: 08/03/2009] [Accepted: 08/23/2009] [Indexed: 10/20/2022]
Abstract
Redox-responsive polyplexes represent a promising class of non-viral gene delivery vectors. The reducible disulfide bonds in the polyplexes undergo intracellular reduction owing to the presence of high concentrations of reduced glutathione (GSH). Available evidence suggests improved transfection activity of redox-sensitive polyplexes upon artificial modulation of intracellular GSH. This study investigates the effect of innate differences in GSH concentration in a panel of human pancreatic cancer cell lines on activity of reducible polyplexes of the four major classes of nucleic acid therapeutics: plasmid DNA (pDNA), messenger RNA (mRNA), antisense oligodeoxynucleotides (AON) and siRNA. In general, reducible polyplexes of linear poly(amido amines) (PAA) show improved activity compared to non-reducible polyplexes of PAA. Results demonstrate that increased GSH levels are associated with improved transfection of mRNA polyplexes but no clear trend is observed for pDNA, AON and siRNA polyplexes.
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