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Hayann L, da Rocha VF, Cândido MF, Vicente RM, Andrilli LHS, Fukada SY, Brassesco MS, Ciancaglini P, Engel EE, Ramos AP. A nontoxic strontium nanoparticle that holds the potential to act upon osteocompetent cells: An in vitro and in vivo characterization. J Biomed Mater Res A 2024; 112:1518-1531. [PMID: 38488327 DOI: 10.1002/jbm.a.37708] [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: 11/07/2023] [Revised: 03/01/2024] [Accepted: 03/06/2024] [Indexed: 07/12/2024]
Abstract
Estrogen deficiency, long-term immobilization, and/or aging are commonly related to bone mass loss, thus increasing the risk of fractures. One option for bone replacement in injuries caused by either traumas or pathologies is the use of orthopedic cement based on polymethylmethacrylate (PMMA). Nevertheless, its reduced bioactivity may induce long-term detachment from the host tissue, resulting in the failure of the implant. In view of this problem, we developed an alternative PMMA-based porous cement (pPMMA) that favors cell invasion and improves osteointegration with better biocompatibility. The cement composition was changed by adding bioactive strontium-nanoparticles that mimic the structure of bone apatite. The nanoparticles were characterized regarding their physical-chemical properties, and their effects on osteoblasts and osteoclast cultures were assessed. Initial in vivo tests were also performed using 16 New Zealand rabbits as animal models, in which the pPMMA-cement containing the strontium nanoparticles were implanted. We showed that the apatite nanoparticles in which 90% of Ca2+ ions were substituted by Sr2+ (NanoSr 90%) upregulated TNAP activity and increased matrix mineralization. Moreover, at the molecular level, NanoSr 90% upregulated the mRNA expression levels of, Sp7, and OCN. Runx2 was increased at both mRNA and protein levels. In parallel, in vivo tests revealed that pPMMA-cement containing NanoSr 90%, upregulated two markers of bone maturation, OCN and BMP2, as well as the formation of apatite minerals after implantation in the femur of rabbits. The overall data support that strontium nanoparticles hold the potential to up-regulate mineralization in osteoblasts when associated with synthetic biomaterials.
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Affiliation(s)
- Larwsk Hayann
- Department of Chemistry, Faculty of Philosophy, Sciences and Letters at Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Vitor Freire da Rocha
- Department of Orthopedics and Anesthesiology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Marina Ferreira Cândido
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Raphael Martini Vicente
- Department of Biology, Faculty of Philosophy, Sciences and Letters at Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Luiz H S Andrilli
- Department of Chemistry, Faculty of Philosophy, Sciences and Letters at Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Sandra Y Fukada
- School of Pharmaceutical Sciences of Ribeirao Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - María Sol Brassesco
- Department of Biology, Faculty of Philosophy, Sciences and Letters at Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Pietro Ciancaglini
- Department of Chemistry, Faculty of Philosophy, Sciences and Letters at Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Edgard Eduard Engel
- Department of Orthopedics and Anesthesiology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Ana Paula Ramos
- Department of Chemistry, Faculty of Philosophy, Sciences and Letters at Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
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2
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Liu T, Gao C, Gu D, Tang H. Cell-based carrier for targeted hitchhiking delivery. Drug Deliv Transl Res 2022; 12:2634-2648. [PMID: 35499717 DOI: 10.1007/s13346-022-01149-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/07/2022] [Indexed: 12/15/2022]
Abstract
Drug delivery systems aim at improving drug transport efficiency and therapeutic efficacy by rational design, and current research on conventional delivery systems brings new developments for disease treatment. Recently, studies on cell-based drug delivery systems are rapidly emerging, which shows great advantages in comparison to conventional drug delivery system. The system uses cells as carriers to delivery conventional drugs or nanomedicines and shows good biocompatibility and enhanced targeting efficiency, beneficial from self component and its physiological function. The construction methodology of cell-based carrier determines the effect on the physiological functions of transporting cell and affects its clinical application. There are different strategies to prepare cell-based carrier, such as direct internalization or surface conjugation of drugs or drug loaded materials. Thus, it is necessary to fully understand the advantages and disadvantages of different strategies for constructing cell-based carrier and then to seek the appropriate construction methodology for achieving better therapeutic results based on disease characterization. We here summarize the application of different types of cell-based carriers reported in recent years and further discuss their applications in disease therapy and the dilemmas faced in clinical translation. We hope that this summary can accelerate the process of clinical translation by promoting the technology development of cell-based carrier.
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Affiliation(s)
- Tonggong Liu
- Department of Preventive Medicine, School of Public Health, Dongguan Key Laboratory of Environmental Medicine, Guangdong Medical University, Dongguan, 523808, China.,Department of Laboratory Medicine, Shenzhen Institute of Translational Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, 518035, China
| | - Cheng Gao
- Department of Laboratory Medicine, Shenzhen Institute of Translational Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, 518035, China.,Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Dayong Gu
- Department of Laboratory Medicine, Shenzhen Institute of Translational Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, 518035, China.
| | - Huanwen Tang
- Department of Preventive Medicine, School of Public Health, Dongguan Key Laboratory of Environmental Medicine, Guangdong Medical University, Dongguan, 523808, China.
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3
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Cheignon C, Kassir AA, Soro LK, Charbonnière LJ. Dye-sensitized lanthanide containing nanoparticles for luminescence based applications. NANOSCALE 2022; 14:13915-13949. [PMID: 36072997 DOI: 10.1039/d1nr06464a] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Due to their exceptional luminescent properties, lanthanide (Ln) complexes represent a unique palette of probes in the spectroscopic toolkit. Their extremely weak brightness due to forbidden Ln electronic transitions can be overcome by indirect dye-sensitization from the antenna effect brought by organic ligands. Despite the improvement brought by the antenna effect, (bio)analytical applications with discrete Ln complexes as luminescent markers still suffers from low sensitivity as they are limited by the complex brightness. Thus, there is a need to develop nano-objects that cumulate the spectroscopic properties of multiple Ln ions. This review firstly gives a brief introduction of the spectral properties of lanthanides both in complexes and in nanoparticles (NPs). Then, the research progress of the design of Ln-doped inorganic NPs with capping antennas, Ln-complex encapsulated NPs and Ln-complex surface functionalized NPs is presented along with a summary of the various photosensitizing ligands and of the spectroscopic properties (excited-state lifetime, brightness, quantum yield). The review also emphasizes the problems and limitations encountered over the years and the solutions provided to address them. Finally, a comparison of the advantages and drawbacks of the three types of NP is provided as well as a conclusion about the remaining challenges both in the design of brighter NPs and in the luminescence based applications.
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Affiliation(s)
- Clémence Cheignon
- Equipe de Synthèse Pour l'Analyse (SynPA), Institut Pluridisciplinaire Hubert Curien (IPHC), UMR 7178 CNRS/Université de Strasbourg, ECPM, Bâtiment R1N0, 25 rue Becquerel, 67087 Strasbourg, Cedex 2, France.
| | - Ali A Kassir
- Equipe de Synthèse Pour l'Analyse (SynPA), Institut Pluridisciplinaire Hubert Curien (IPHC), UMR 7178 CNRS/Université de Strasbourg, ECPM, Bâtiment R1N0, 25 rue Becquerel, 67087 Strasbourg, Cedex 2, France.
| | - Lohona K Soro
- Equipe de Synthèse Pour l'Analyse (SynPA), Institut Pluridisciplinaire Hubert Curien (IPHC), UMR 7178 CNRS/Université de Strasbourg, ECPM, Bâtiment R1N0, 25 rue Becquerel, 67087 Strasbourg, Cedex 2, France.
| | - Loïc J Charbonnière
- Equipe de Synthèse Pour l'Analyse (SynPA), Institut Pluridisciplinaire Hubert Curien (IPHC), UMR 7178 CNRS/Université de Strasbourg, ECPM, Bâtiment R1N0, 25 rue Becquerel, 67087 Strasbourg, Cedex 2, France.
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4
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Natarajan D, Ye Z, Wang L, Ge L, Pathak JL. Rare earth smart nanomaterials for bone tissue engineering and implantology: Advances, challenges, and prospects. Bioeng Transl Med 2022; 7:e10262. [PMID: 35111954 PMCID: PMC8780931 DOI: 10.1002/btm2.10262] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Accepted: 10/09/2021] [Indexed: 12/18/2022] Open
Abstract
Bone grafts or prosthetic implant designing for clinical application is challenging due to the complexity of integrated physiological processes. The revolutionary advances of nanotechnology in the biomaterial field expedite and endorse the current unresolved complexity in functional bone graft and implant design. Rare earth (RE) materials are emerging biomaterials in tissue engineering due to their unique biocompatibility, fluorescence upconversion, antimicrobial, antioxidants, and anti-inflammatory properties. Researchers have developed various RE smart nano-biomaterials for bone tissue engineering and implantology applications in the past two decades. Furthermore, researchers have explored the molecular mechanisms of RE material-mediated tissue regeneration. Recent advances in biomedical applications of micro or nano-scale RE materials have provided a foundation for developing novel, cost-effective bone tissue engineering strategies. This review attempted to provide an overview of RE nanomaterials' technological innovations in bone tissue engineering and implantology and summarized the osteogenic, angiogenic, immunomodulatory, antioxidant, in vivo bone tissue imaging, and antimicrobial properties of various RE nanomaterials, as well as the molecular mechanisms involved in these biological events. Further, we extend to discuss the challenges and prospects of RE smart nano-biomaterials in the field of bone tissue engineering and implantology.
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Affiliation(s)
- Duraipandy Natarajan
- Affiliated Stomatology Hospital of Guangzhou Medical UniversityGuangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative MedicineGuangzhouChina
| | - Zhitong Ye
- Affiliated Stomatology Hospital of Guangzhou Medical UniversityGuangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative MedicineGuangzhouChina
| | - Liping Wang
- Affiliated Stomatology Hospital of Guangzhou Medical UniversityGuangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative MedicineGuangzhouChina
| | - Linhu Ge
- Affiliated Stomatology Hospital of Guangzhou Medical UniversityGuangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative MedicineGuangzhouChina
| | - Janak Lal Pathak
- Affiliated Stomatology Hospital of Guangzhou Medical UniversityGuangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative MedicineGuangzhouChina
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Otieno SA, Qiang W. Roles of key residues and lipid dynamics reveal pHLIP-membrane interactions at intermediate pH. Biophys J 2021; 120:4649-4662. [PMID: 34624273 PMCID: PMC8595900 DOI: 10.1016/j.bpj.2021.10.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 09/16/2021] [Accepted: 10/01/2021] [Indexed: 11/16/2022] Open
Abstract
The pH-low insertion peptide (pHLIP) and its analogs sense the microenvironmental pH variations in tumorous cells and serve as useful anticancer drug deliveries. The pHLIP binds peripherally to membranes and adopts random coil conformation at the physiological pH. The peptide switches from random coil to α-helical conformation and inserts unidirectionally into membrane bilayers when pH drops below a critical transition value that has been routinely determined by the Trp fluorescence spectroscopy. Recent high-resolution studies using solid-state NMR spectroscopy revealed the presence of thermodynamically stable intermediate states of membrane-associated pHLIP around the fluorescence-based transition pH-value. However, the molecular structural features and their mechanistic roles of these intermediate states in the pH-driven membrane insertion process of pHLIP remain largely unknown. This work utilizes solid-state NMR spectroscopy to explore 1) the mechanistic roles of key proline and arginine residues within the pHLIP sequence at intermediate pH-values, and 2) the changes in lipid dynamics at intermediate pH-values in multiple types of model bilayers with anionic phospholipid and/or cholesterol. Our results demonstrate several molecular structural and dynamics changes at around the transition pH-values, including the isomerization of proline-threonine backbone configuration, breaking of arginine-aspartic acid salt bridge and the formation of arginine-lipid interactions, and a universal decreasing of dynamics in lipid headgroups and alkyl chains. Overall, the outcomes provide important insights on the molecular interactions between pHLIP and membrane bilayers at intermediate pH-values and, therefore, prompt the understanding of pH-driven membrane insertion process of this anticancer drug-delivering peptide.
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Affiliation(s)
- Sarah A Otieno
- Department of Chemistry, Binghamton University, State University of New York, Binghamton, New York
| | - Wei Qiang
- Department of Chemistry, Binghamton University, State University of New York, Binghamton, New York.
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6
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Domb AJ, Sharifzadeh G, Nahum V, Hosseinkhani H. Safety Evaluation of Nanotechnology Products. Pharmaceutics 2021; 13:pharmaceutics13101615. [PMID: 34683908 PMCID: PMC8539492 DOI: 10.3390/pharmaceutics13101615] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Revised: 09/21/2021] [Accepted: 09/23/2021] [Indexed: 01/11/2023] Open
Abstract
Nanomaterials are now being used in a wide variety of biomedical applications. Medical and health-related issues, however, have raised major concerns, in view of the potential risks of these materials against tissue, cells, and/or organs and these are still poorly understood. These particles are able to interact with the body in countless ways, and they can cause unexpected and hazardous toxicities, especially at cellular levels. Therefore, undertaking in vitro and in vivo experiments is vital to establish their toxicity with natural tissues. In this review, we discuss the underlying mechanisms of nanotoxicity and provide an overview on in vitro characterizations and cytotoxicity assays, as well as in vivo studies that emphasize blood circulation and the in vivo fate of nanomaterials. Our focus is on understanding the role that the physicochemical properties of nanomaterials play in determining their toxicity.
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Affiliation(s)
- Abraham J. Domb
- The Centers for Nanoscience and Nanotechnology, Alex Grass Center for Drug Design and Synthesis and Cannabinoids Research, School of Pharmacy, Faculty of Medicine, Institute of Drug Research, The Hebrew University of Jerusalem, Jerusalem 91120, Israel;
- Correspondence: (A.J.D.); (H.H.)
| | - Ghorbanali Sharifzadeh
- Department of Polymer Engineering, School of Chemical Engineering, Universiti Teknologi Malaysia, Johor Bahru 81310, Malaysia;
| | - Victoria Nahum
- The Centers for Nanoscience and Nanotechnology, Alex Grass Center for Drug Design and Synthesis and Cannabinoids Research, School of Pharmacy, Faculty of Medicine, Institute of Drug Research, The Hebrew University of Jerusalem, Jerusalem 91120, Israel;
| | - Hossein Hosseinkhani
- Innovation Center for Advanced Technology, Matrix, Inc., New York, NY 10029, USA
- Correspondence: (A.J.D.); (H.H.)
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7
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Frickenstein AN, Hagood JM, Britten CN, Abbott BS, McNally MW, Vopat CA, Patterson EG, MacCuaig WM, Jain A, Walters KB, McNally LR. Mesoporous Silica Nanoparticles: Properties and Strategies for Enhancing Clinical Effect. Pharmaceutics 2021; 13:570. [PMID: 33920503 PMCID: PMC8072651 DOI: 10.3390/pharmaceutics13040570] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 03/15/2021] [Accepted: 04/07/2021] [Indexed: 12/13/2022] Open
Abstract
Due to the theragnostic potential of mesoporous silica nanoparticles (MSNs), these were extensively investigated as a novel approach to improve clinical outcomes. Boasting an impressive array of formulations and modifications, MSNs demonstrate significant in vivo efficacy when used to identify or treat myriad malignant diseases in preclinical models. As MSNs continue transitioning into clinical trials, a thorough understanding of the characteristics of effective MSNs is necessary. This review highlights recent discoveries and advances in MSN understanding and technology. Specific focus is given to cancer theragnostic approaches using MSNs. Characteristics of MSNs such as size, shape, and surface properties are discussed in relation to effective nanomedicine practice and projected clinical efficacy. Additionally, tumor-targeting options used with MSNs are presented with extensive discussion on active-targeting molecules. Methods for decreasing MSN toxicity, improving site-specific delivery, and controlling release of loaded molecules are further explained. Challenges facing the field and translation to clinical environments are presented alongside potential avenues for continuing investigations.
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Affiliation(s)
- Alex N. Frickenstein
- Stephenson School of Biomedical Engineering, University of Oklahoma, Norman, OK 73019, USA; (A.N.F.); (C.A.V.); (W.M.M.)
- Stephenson Cancer Center, University of Oklahoma, Oklahoma City, OK 73104, USA; (J.M.H.); (M.W.M.)
| | - Jordan M. Hagood
- Stephenson Cancer Center, University of Oklahoma, Oklahoma City, OK 73104, USA; (J.M.H.); (M.W.M.)
| | - Collin N. Britten
- School of Chemical, Biological, and Materials Engineering, University of Oklahoma, Norman, OK 73019, USA; (C.N.B.); (B.S.A.); (K.B.W.)
| | - Brandon S. Abbott
- School of Chemical, Biological, and Materials Engineering, University of Oklahoma, Norman, OK 73019, USA; (C.N.B.); (B.S.A.); (K.B.W.)
| | - Molly W. McNally
- Stephenson Cancer Center, University of Oklahoma, Oklahoma City, OK 73104, USA; (J.M.H.); (M.W.M.)
| | - Catherine A. Vopat
- Stephenson School of Biomedical Engineering, University of Oklahoma, Norman, OK 73019, USA; (A.N.F.); (C.A.V.); (W.M.M.)
| | - Eian G. Patterson
- Department of Biology, University of Oklahoma, Norman, OK 73019, USA;
| | - William M. MacCuaig
- Stephenson School of Biomedical Engineering, University of Oklahoma, Norman, OK 73019, USA; (A.N.F.); (C.A.V.); (W.M.M.)
- Stephenson Cancer Center, University of Oklahoma, Oklahoma City, OK 73104, USA; (J.M.H.); (M.W.M.)
| | - Ajay Jain
- Department of Surgery, University of Oklahoma, Oklahoma City, OK 73104, USA;
| | - Keisha B. Walters
- School of Chemical, Biological, and Materials Engineering, University of Oklahoma, Norman, OK 73019, USA; (C.N.B.); (B.S.A.); (K.B.W.)
| | - Lacey R. McNally
- Stephenson Cancer Center, University of Oklahoma, Oklahoma City, OK 73104, USA; (J.M.H.); (M.W.M.)
- Department of Surgery, University of Oklahoma, Oklahoma City, OK 73104, USA;
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8
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Dosumu A, Claire S, Watson LS, Girio PM, Osborne SAM, Pikramenou Z, Hodges NJ. Quantification by Luminescence Tracking of Red Emissive Gold Nanoparticles in Cells. JACS AU 2021; 1:174-186. [PMID: 33778810 PMCID: PMC7990080 DOI: 10.1021/jacsau.0c00033] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Indexed: 05/11/2023]
Abstract
Optical microscopy techniques are ideal for live cell imaging for real-time nanoparticle tracking of nanoparticle localization. However, the quantification of nanoparticle uptake is usually evaluated by analytical methods that require cell isolation. Luminescent labeling of gold nanoparticles with transition metal probes yields particles with attractive photophysical properties, enabling cellular tracking using confocal and time-resolved microscopies. In the current study, gold nanoparticles coated with a red-luminescent ruthenium transition metal complex are used to quantify and track particle uptake and localization. Analysis of the red-luminescence signal from particles is used as a metric of cellular uptake, which correlates to total cellular gold and ruthenium content, independently measured and correlated by inductively coupled plasma mass spectrometry. Tracking of the luminescence signal provides evidence of direct diffusion of the nanoparticles across the cytoplasmic membrane with particles observed in the cytoplasm and mitochondria as nonclustered "free" nanoparticles. Electron microscopy and inhibition studies identified macropinocytosis of clusters of particles into endosomes as the major mechanism of uptake. Nanoparticles were tracked inside GFP-tagged cells by following the red-luminescence signal of the ruthenium complex. Tracking of the particles demonstrates their initial location in early endosomes and, later, in lysosomes and autophagosomes. Colocalization was quantified by calculating the Pearson's correlation coefficient between red and green luminescence signals and confirmed by electron microscopy. Accumulation of particles in autophagosomes correlated with biochemical evidence of active autophagy, but there was no evidence of detachment of the luminescent label or breakup of the gold core. Instead, accumulation of particles in autophagosomes caused organelle swelling, breakdown of the surrounding membranes, and endosomal release of the nanoparticles into the cytoplasm. The phenomenon of endosomal release has important consequences for the toxicity, cellular targeting, and therapeutic future applications of gold nanoparticles.
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Affiliation(s)
- Abiola
N. Dosumu
- School
of Biosciences, School of Chemistry, and Doctoral Training Centre in Physical
Sciences for Health, The University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - Sunil Claire
- School
of Biosciences, School of Chemistry, and Doctoral Training Centre in Physical
Sciences for Health, The University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - Luke S. Watson
- School
of Biosciences, School of Chemistry, and Doctoral Training Centre in Physical
Sciences for Health, The University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - Patricia M. Girio
- School
of Biosciences, School of Chemistry, and Doctoral Training Centre in Physical
Sciences for Health, The University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - Shani A. M. Osborne
- School
of Biosciences, School of Chemistry, and Doctoral Training Centre in Physical
Sciences for Health, The University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - Zoe Pikramenou
- School
of Biosciences, School of Chemistry, and Doctoral Training Centre in Physical
Sciences for Health, The University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - Nikolas J. Hodges
- School
of Biosciences, School of Chemistry, and Doctoral Training Centre in Physical
Sciences for Health, The University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
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Charpentier C, Cifliku V, Goetz J, Nonat A, Cheignon C, Cardoso Dos Santos M, Francés‐Soriano L, Wong K, Charbonnière LJ, Hildebrandt N. Ultrabright Terbium Nanoparticles for FRET Biosensing and in Situ Imaging of Epidermal Growth Factor Receptors**. Chemistry 2020; 26:14602-14611. [DOI: 10.1002/chem.202002007] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 06/04/2020] [Indexed: 12/16/2022]
Affiliation(s)
- Cyrille Charpentier
- Equipe de synthèse pour l'analyse (SynPA), Institut Pluridisciplinaire Hubert Curien (IPHC), UMR 7178, CNRS Université de Strasbourg 67087 Strasbourg Cedex France
| | - Vjona Cifliku
- Institute for Integrative Biology of the Cell (I2BC) Université Paris-Saclay, CNRS, CEA 91405 Orsay Cedex France
- nanoFRET.com Laboratoire COBRA (Chimie Organique, Bioorganique, Réactivité et Analyse) Université de Rouen Normandie, CNRS, INSA 76821 Mont-Saint-Aignan Cedex France
| | - Joan Goetz
- Equipe de synthèse pour l'analyse (SynPA), Institut Pluridisciplinaire Hubert Curien (IPHC), UMR 7178, CNRS Université de Strasbourg 67087 Strasbourg Cedex France
- Department of Chemistry Hong Kong Baptist University Hong Kong P. R. China
| | - Aline Nonat
- Equipe de synthèse pour l'analyse (SynPA), Institut Pluridisciplinaire Hubert Curien (IPHC), UMR 7178, CNRS Université de Strasbourg 67087 Strasbourg Cedex France
| | - Clémence Cheignon
- Equipe de synthèse pour l'analyse (SynPA), Institut Pluridisciplinaire Hubert Curien (IPHC), UMR 7178, CNRS Université de Strasbourg 67087 Strasbourg Cedex France
| | - Marcelina Cardoso Dos Santos
- Institute for Integrative Biology of the Cell (I2BC) Université Paris-Saclay, CNRS, CEA 91405 Orsay Cedex France
| | - Laura Francés‐Soriano
- nanoFRET.com Laboratoire COBRA (Chimie Organique, Bioorganique, Réactivité et Analyse) Université de Rouen Normandie, CNRS, INSA 76821 Mont-Saint-Aignan Cedex France
| | - Ka‐Leung Wong
- Department of Chemistry Hong Kong Baptist University Hong Kong P. R. China
| | - Loïc J. Charbonnière
- Equipe de synthèse pour l'analyse (SynPA), Institut Pluridisciplinaire Hubert Curien (IPHC), UMR 7178, CNRS Université de Strasbourg 67087 Strasbourg Cedex France
| | - Niko Hildebrandt
- Institute for Integrative Biology of the Cell (I2BC) Université Paris-Saclay, CNRS, CEA 91405 Orsay Cedex France
- nanoFRET.com Laboratoire COBRA (Chimie Organique, Bioorganique, Réactivité et Analyse) Université de Rouen Normandie, CNRS, INSA 76821 Mont-Saint-Aignan Cedex France
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10
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Liu X, Zhang Q, Knoll W, Liedberg B, Wang Y. Rational Design of Functional Peptide-Gold Hybrid Nanomaterials for Molecular Interactions. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2000866. [PMID: 32743897 DOI: 10.1002/adma.202000866] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 05/21/2020] [Indexed: 05/12/2023]
Abstract
Gold nanoparticles (AuNPs) have been extensively used for decades in biosensing-related development due to outstanding optical properties. Peptides, as newly realized functional biomolecules, are promising candidates of replacing antibodies, receptors, and substrates for specific molecular interactions. Both peptides and AuNPs are robust and easily synthesized at relatively low cost. Hence, peptide-AuNP-based bio-nano-technological approaches have drawn increasing interest, especially in the field of molecular targeting, cell imaging, drug delivery, and therapy. Many excellent works in these areas have been reported: demonstrating novel ideas, exploring new targets, and facilitating advanced diagnostic and therapeutic technologies. Importantly, some of them also have been employed to address real practical problems, especially in remote and less privileged areas. This contribution focuses on the application of peptide-gold hybrid nanomaterials for various molecular interactions, especially in biosensing/diagnostics and cell targeting/imaging, as well as for the development of highly active antimicrobial/antifouling coating strategies. Rationally designed peptide-gold nanomaterials with functional properties are discussed along with future challenges and opportunities.
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Affiliation(s)
- Xiaohu Liu
- School of Biomedical Engineering, School of Ophthalmology & Optometry, Wenzhou Medical University, Xueyuan Road 270, Wenzhou, 325027, China
- Wenzhou Institute, University of Chinese Academy of Sciences, Xinsan Road 16, Wenzhou, 325001, China
| | - Qingwen Zhang
- School of Biomedical Engineering, School of Ophthalmology & Optometry, Wenzhou Medical University, Xueyuan Road 270, Wenzhou, 325027, China
- Wenzhou Institute, University of Chinese Academy of Sciences, Xinsan Road 16, Wenzhou, 325001, China
| | - Wolfgang Knoll
- Austrian Institute of Technology, Giefinggasse 4, Vienna, 1210, Austria
| | - Bo Liedberg
- Centre for Biomimetic Sensor Science, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Yi Wang
- School of Biomedical Engineering, School of Ophthalmology & Optometry, Wenzhou Medical University, Xueyuan Road 270, Wenzhou, 325027, China
- Wenzhou Institute, University of Chinese Academy of Sciences, Xinsan Road 16, Wenzhou, 325001, China
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11
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Moradi Kashkooli F, Soltani M, Souri M. Controlled anti-cancer drug release through advanced nano-drug delivery systems: Static and dynamic targeting strategies. J Control Release 2020; 327:316-349. [PMID: 32800878 DOI: 10.1016/j.jconrel.2020.08.012] [Citation(s) in RCA: 181] [Impact Index Per Article: 45.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 08/07/2020] [Accepted: 08/08/2020] [Indexed: 12/14/2022]
Abstract
Advances in nanomedicine, including early cancer detection, targeted drug delivery, and personalized approaches to cancer treatment are on the rise. For example, targeted drug delivery systems can improve intracellular delivery because of their multifunctionality. Novel endogenous-based and exogenous-based stimulus-responsive drug delivery systems have been proposed to prevent the cancer progression with proper drug delivery. To control effective dose loading and sustained release, targeted permeability and individual variability can now be described in more-complex ways, such as by combining internal and external stimuli. Despite these advances in release control, certain challenges remain and are identified in this research, which emphasizes the control of drug release and applications of nanoparticle-based drug delivery systems. Using a multiscale and multidisciplinary approach, this study investigates and analyzes drug delivery and release strategies in the nanoparticle-based treatment of cancer, both mathematically and clinically.
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Affiliation(s)
- Farshad Moradi Kashkooli
- Department of Mechanical Engineering, K. N. Toosi University of Technology, Tehran, Iran; Department of Applied Mathematics, University of Waterloo, Waterloo, ON, Canada..
| | - M Soltani
- Department of Mechanical Engineering, K. N. Toosi University of Technology, Tehran, Iran; Advanced Bioengineering Initiative Center, Computational Medicine Center, K. N. Toosi University of Technology, Tehran, Iran; Department of Electrical and Computer Engineering, University of Waterloo, Waterloo, ON, Canada; Centre for Biotechnology and Bioengineering (CBB), University of Waterloo, Waterloo, ON, Canada; Cancer Biology Research Center, Cancer Institute of Iran, Tehran University of Medical Sciences, Tehran, Iran.
| | - Mohammad Souri
- Department of Mechanical Engineering, K. N. Toosi University of Technology, Tehran, Iran.
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12
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Scarpantonio L, Cotton S, Del Giorgio E, McCallum M, Hannon M, Pikramenou Z. A luminescent europium hairpin for DNA photosensing in the visible, based on trimetallic bis-intercalators. J Inorg Biochem 2020; 209:111119. [DOI: 10.1016/j.jinorgbio.2020.111119] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 05/01/2020] [Accepted: 05/16/2020] [Indexed: 01/15/2023]
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13
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Caballero AB, Cardo L, Claire S, Craig JS, Hodges NJ, Vladyka A, Albrecht T, Rochford LA, Pikramenou Z, Hannon MJ. Assisted delivery of anti-tumour platinum drugs using DNA-coiling gold nanoparticles bearing lumophores and intercalators: towards a new generation of multimodal nanocarriers with enhanced action. Chem Sci 2019; 10:9244-9256. [PMID: 32055309 PMCID: PMC7003971 DOI: 10.1039/c9sc02640a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Accepted: 08/05/2019] [Indexed: 12/19/2022] Open
Abstract
New gold and lipoic based nanocarriers for the delivery of platinum(ii) and platinum(iv) drugs are developed, which allow enhanced loading of the drug on the surface of the nanocarriers and release in a pH-dependent fashion, with superior release at lower pHs which are associated with many tumours. The conjugate nanoparticles and their conjugates enter cells rapidly (within 3 hours). They tend to cluster in vesicles and are also observed by light and electron microscopies in the cytoplasm, endoplasmic reticulum and nucleus. We further incorporate aminoanthraquinone units that are both fluorophores and DNA intercalators. This results in nanocarriers that after drug release will remain surface decorated with DNA-binders challenging the conventional design of the nanocarrier as an inert component. The outcome is nanocarriers that themselves have distinctive, remarkable and unusual DNA binding properties being able to bind and wrap DNA (despite their anionic charge) and provide enhanced cytotoxic activity beyond that conferred by the platinum agents they release. DNA coiling is usually associated with polycations which can disrupt cell membranes; anionic nanoparticles that can cause novel and dramatic effects on DNA may have fascinating potential for new approaches to in-cell nucleic acid recognition. Our findings have implications for the understanding and interpretation of the biological activities of nanoparticles used to deliver other DNA-binding drugs including clinical drug doxorubicin and its formulations.
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Affiliation(s)
- Ana B Caballero
- School of Chemistry , University of Birmingham , Edgbaston , Birmingham B15 2TT , UK . ;
| | - Lucia Cardo
- School of Chemistry , University of Birmingham , Edgbaston , Birmingham B15 2TT , UK . ;
| | - Sunil Claire
- School of Chemistry , University of Birmingham , Edgbaston , Birmingham B15 2TT , UK . ;
| | - James S Craig
- Physical Sciences for Health Centre , University of Birmingham , Edgbaston , Birmingham B15 2TT , UK
| | - Nikolas J Hodges
- School of Biosciences , University of Birmingham , Edgbaston , Birmingham B15 2TT , UK
| | - Anton Vladyka
- School of Chemistry , University of Birmingham , Edgbaston , Birmingham B15 2TT , UK . ;
| | - Tim Albrecht
- School of Chemistry , University of Birmingham , Edgbaston , Birmingham B15 2TT , UK . ;
| | - Luke A Rochford
- School of Chemistry , University of Birmingham , Edgbaston , Birmingham B15 2TT , UK . ;
| | - Zoe Pikramenou
- School of Chemistry , University of Birmingham , Edgbaston , Birmingham B15 2TT , UK . ;
| | - Michael J Hannon
- School of Chemistry , University of Birmingham , Edgbaston , Birmingham B15 2TT , UK . ;
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14
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Xu M, Su Z, Renner JN. Characterization of cerium (III) ion binding to surface‐immobilized EF‐hand loop I of calmodulin. Pept Sci (Hoboken) 2019. [DOI: 10.1002/pep2.24133] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- MingYuan Xu
- Department of Chemical and Biomolecular Engineering Case Western Reserve University Cleveland Ohio
| | - Zihang Su
- Department of Chemical and Biomolecular Engineering Case Western Reserve University Cleveland Ohio
| | - Julie N. Renner
- Department of Chemical and Biomolecular Engineering Case Western Reserve University Cleveland Ohio
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15
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Smith K, Getzin M, Garfield JJ, Suvarnapathaki S, Camci-Unal G, Wang G, Gkikas M. Nanophosphor-Based Contrast Agents for Spectral X-ray Imaging. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E1092. [PMID: 31366080 PMCID: PMC6723483 DOI: 10.3390/nano9081092] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 07/22/2019] [Accepted: 07/27/2019] [Indexed: 12/26/2022]
Abstract
Lanthanide-based nanophosphors (NPhs) are herein developed as contrast agents for spectral X-ray imaging, highlighting the chemical, macromolecular and structural differences derived from ligand exchange on computed tomography (CT) and solvent dispersibility. Taking advantage of the ability of spectral X-ray imaging with photon-counting detectors to perform image acquisition, analysis, and processing at different energy windows (bins), enhanced signal of our K-edge materials was derived, improving sensitivity of CT imaging, and differentiation between water, tumor-mimic phantoms, and contrast materials. Our results indicate that the most effective of our oleic acid-stabilized K-edge nanoparticles can achieve 2-4x higher contrast than the examined iodinated molecules, making them suitable for deep tissue imaging of tissues or tumors. On the other hand, ligand exchange yielding poly(acrylic acid)-stabilized K-edge nanoparticles allows for high dispersibility and homogeneity in water, but with a lower contrast due to the high density of the polymer grafted, unless further engineering is probed. This is the first well-defined study that manages to correlate NPh grafting density with CT numbers and water dispersibility, laying the groundwork for the development of the next generation CT-guided diagnostic and/or theranostic materials.
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Affiliation(s)
- Kevin Smith
- Department of Chemistry, University of Massachusetts Lowell, Lowell, MA 01854, USA
| | - Matthew Getzin
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
| | - Josephine J Garfield
- Department of Chemistry, University of Massachusetts Lowell, Lowell, MA 01854, USA
| | - Sanika Suvarnapathaki
- Biomedical Engineering and Biotechnology Program, University of Massachusetts Lowell, Lowell, MA 01854, USA
| | - Gulden Camci-Unal
- Department of Chemical Engineering, University of Massachusetts Lowell, Lowell, MA 01854, USA
| | - Ge Wang
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180, USA.
| | - Manos Gkikas
- Department of Chemistry, University of Massachusetts Lowell, Lowell, MA 01854, USA.
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16
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Barry DE, Kitchen JA, Mercs L, Peacock RD, Albrecht M, Gunnlaugsson T. Chiral luminescent lanthanide complexes possessing strong (samarium, Sm III) circularly polarised luminescence (CPL), and their self-assembly into Langmuir-Blodgett films. Dalton Trans 2019; 48:11317-11325. [PMID: 31271402 DOI: 10.1039/c9dt02003a] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The lanthanide directed self-assembly of chiral amphiphilic 2,6-pyridinedicarboxylic acid based ligands 1 and 2 with various Ln(CF3SO3)3 (Ln = TbIII, SmIII, LuIII, DyIII) salts was studied in CH3CN and evaluated with the expected 1 : 3 and 1 : 1 Ln : Ligand species forming in solution. Ligand chirality was retained and transferred, as depicted by circular dichroism (CD) and circularly polarised luminescence (CPL) measurements (for TbIII and SmIII), to the lanthanide centre upon complexation with high dissymmetry factor values for the SmIII complexes obtained (glum = -0.44 and 0.29 and 0.45 and -0.23 for the 4G5/2→6H5/2 and the 4G5/2→6H7/2 transitions of Sm·13 and Sm·23, respectively). The ability of the complexes to form stable Langmuir monolayers at the air-water interface was also established while Langmuir-Blodgett films of Tb·L3 and Sm·L3 exhibited lanthanide luminescent emission.
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Affiliation(s)
- Dawn E Barry
- School of Chemistry and Trinity Biomedical Sciences Institute (TBSI), Trinity College Dublin, The University of Dublin, Dublin 2, Ireland.
| | - Jonathan A Kitchen
- Chemistry, School of Natural and Computational Sciences, Massey University, Auckland, New Zealand
| | - Laszlo Mercs
- School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Robert D Peacock
- School of Chemistry, University of Glasgow, Glasgow, G 12 8QQ, Scotland, UK
| | - Martin Albrecht
- School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Thorfinnur Gunnlaugsson
- School of Chemistry and Trinity Biomedical Sciences Institute (TBSI), Trinity College Dublin, The University of Dublin, Dublin 2, Ireland.
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17
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Cao J, Gao X, Cheng M, Niu X, Li X, Zhang Y, Liu Y, Wang W, Yuan Z. Reversible Shielding between Dual Ligands for Enhanced Tumor Accumulation of ZnPc-Loaded Micelles. NANO LETTERS 2019; 19:1665-1674. [PMID: 30801190 DOI: 10.1021/acs.nanolett.8b04645] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Herein, we report a ligand-reversible-shielding strategy based on the mutual shielding of dual ligands tethered to the surface of nanoparticles. To exemplify this concept, phenylboronic acid-functionalized poly(ethylene glycol)- b-poly(ε-caprolactone) (PBA-PEG-PCL) and galactose-functionalized diblock polymer (Gal-PEG-PCL) were mixed to form dual-ligand micelles (PBA/Gal). PBA and Gal residues could form a complex at pH 7.4 and mutually shield their targeting function. At pH 6.8, the binding affinity between PBA and Gal weakened, and PBA preferred to bind with the sialic acid residues on the tumor cell surface rather than to Gal on the micellar surface; furthermore, the unbound Gal recovered its targeting ability toward the asialoglycoprotein receptor. When the pH decreased from 7.4 to 6.8, enzyme-linked immunosorbent assays exhibited that the percentage of exposed Gal on the micellar surface increased 1.9-fold, and flow cytometry showed that HepG2 cellular uptake increased 4.3-fold. More importantly, this process was reversible, confirming the reversible shielding and deshielding of dual ligands. With the encapsulation of a photosensitizer, zinc phthalocyanine (ZnPc), the reversible-shielding micelles showed a 48% improvement in the half-life ( t1/2) in blood circulation, a 54% decrease in liver capture, a 40% increase in tumor accumulation, and a 10.3% improvement in the tumor inhibition rate compared to the Gal-coated irreversible micelles. This dual-ligand mutual-shielding strategy provides a new perspective on reversible tumor targeting.
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Affiliation(s)
- Jing Cao
- Key Laboratory of Functional Polymer Materials of the Ministry of Education, Institute of Polymer Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , China
| | - Xuefeng Gao
- Key Laboratory of Functional Polymer Materials of the Ministry of Education, Institute of Polymer Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , China
| | - Mingbo Cheng
- Key Laboratory of Functional Polymer Materials of the Ministry of Education, Institute of Polymer Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , China
| | - Xiaoyan Niu
- Key Laboratory of Functional Polymer Materials of the Ministry of Education, Institute of Polymer Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , China
| | - Xiaomin Li
- Key Laboratory of Functional Polymer Materials of the Ministry of Education, Institute of Polymer Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , China
| | - Yapei Zhang
- Key Laboratory of Functional Polymer Materials of the Ministry of Education, Institute of Polymer Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , China
| | - Yang Liu
- Key Laboratory of Functional Polymer Materials of the Ministry of Education, Institute of Polymer Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , China
| | - Wei Wang
- Key Laboratory of Functional Polymer Materials of the Ministry of Education, Institute of Polymer Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , China
| | - Zhi Yuan
- Key Laboratory of Functional Polymer Materials of the Ministry of Education, Institute of Polymer Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin 300071 , China
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18
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Umlauf BJ, Shusta EV. Exploiting BBB disruption for the delivery of nanocarriers to the diseased CNS. Curr Opin Biotechnol 2019; 60:146-152. [PMID: 30849699 DOI: 10.1016/j.copbio.2019.01.013] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 12/20/2018] [Accepted: 01/21/2019] [Indexed: 12/16/2022]
Affiliation(s)
- Benjamin J Umlauf
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, United States
| | - Eric V Shusta
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, United States.
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19
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Mahmood AA, Zhang J, Liao R, Pan X, Xu D, Xu H, Zhou Q. Evaluation of non-targeting, C- or N-pH (low) insertion peptide modified superparamagnetic iron oxide nanoclusters for selective MRI of liver tumors and their potential toxicity in cirrhosis. RSC Adv 2019; 9:14051-14059. [PMID: 35519327 PMCID: PMC9064030 DOI: 10.1039/c9ra02430a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2019] [Accepted: 05/01/2019] [Indexed: 11/21/2022] Open
Abstract
Superparamagnetic iron oxide nanoclusters (SPIONs) modified with pH (low) insertion peptide (pHLIP) could be advantageous for magnetic resonance imaging (MRI) diagnosis of liver tumors at the early stage due to their unique responsiveness to the tumor acidic microenvironment when tumor markers are unknown. However, many critical aspects including the effectiveness of selective MRI in liver tumors, types of delivery and the potential safety profile in cirrhosis need to be fully evaluated. In this study, we report the evaluation of non-targeting, C- or N-pHLIP modified SPIONs as the contrast agent for selective MRI of liver tumors and their potential toxicity profile in cirrhosis. It was found that N-pHLIP modified SPIONs did not result in the loss of liver tumor in the T2-weight MRI but provided additional dynamic details of tumor structures that would enhance the diagnosis of liver tumors at a small size below 8 mm. In addition, an enhanced safety profile was found for N-pHLIP modified SPIONs with almost fully recoverable impact in cirrhosis. In contrast, the poly-d-lysine assembled SPIONs and C-terminus linked pHLIP SPIONs had non-tumor specific MRI contrast enhancement and potential safety risks in cirrhosis due to the iron overload post injection. All these results implied the promising potential of N-terminus linked pHLIP SPIONs as an MRI contrast agent for the diagnosis of liver tumors. The acid-responsive pHLIP modified SPION as an MRI contrast agent for liver cancer diagnosis requires the validation of both the tumor-specific enhancement and a safe profile in cirrhosis.![]()
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Affiliation(s)
- Abdulrahman Ahmed Mahmood
- Department of Nanomedicine & Biopharmaceuticals
- College of Life Science and Technology
- National Engineering Research Center for Nanomedicine
- Huazhong University of Science and Technology
- Wuhan 430074
| | - Jianqi Zhang
- Department of Nanomedicine & Biopharmaceuticals
- College of Life Science and Technology
- National Engineering Research Center for Nanomedicine
- Huazhong University of Science and Technology
- Wuhan 430074
| | - Rufang Liao
- Department of Radiology
- Zhongnan Hospital of Wuhan University
- Wuhan 430071
- China
| | - Xiwei Pan
- Department of Nanomedicine & Biopharmaceuticals
- College of Life Science and Technology
- National Engineering Research Center for Nanomedicine
- Huazhong University of Science and Technology
- Wuhan 430074
| | - Dan Xu
- Department of Radiology
- Zhongnan Hospital of Wuhan University
- Wuhan 430071
- China
| | - Haibo Xu
- Department of Radiology
- Zhongnan Hospital of Wuhan University
- Wuhan 430071
- China
| | - Qibing Zhou
- Department of Nanomedicine & Biopharmaceuticals
- College of Life Science and Technology
- National Engineering Research Center for Nanomedicine
- Huazhong University of Science and Technology
- Wuhan 430074
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20
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King SM, Claire S, Teixeira RI, Dosumu AN, Carrod AJ, Dehghani H, Hannon MJ, Ward AD, Bicknell R, Botchway SW, Hodges NJ, Pikramenou Z. Iridium Nanoparticles for Multichannel Luminescence Lifetime Imaging, Mapping Localization in Live Cancer Cells. J Am Chem Soc 2018; 140:10242-10249. [PMID: 30032598 DOI: 10.1021/jacs.8b05105] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The development of long-lived luminescent nanoparticles for lifetime imaging is of wide interest as luminescence lifetime is environmentally sensitive detection independent of probe concentration. We report novel iridium-coated gold nanoparticles as probes for multiphoton lifetime imaging with characteristic long luminescent lifetimes based on iridium luminescence in the range of hundreds of nanoseconds and a short signal on the scale of picoseconds based on gold allowing multichannel detection. The tailor-made IrC6 complex forms stable, water-soluble gold nanoparticles (AuNPs) of 13, 25, and 100 nm, bearing 1400, 3200, and 22 000 IrC6 complexes per AuNP, respectively. The sensitivity of the iridium signal on the environment of the cell is evidenced with an observed variation of lifetimes. Clusters of iridium nanoparticles show lifetimes from 450 to 590 ns while lifetimes of 660 and 740 ns are an average of different points in the cytoplasm and nucleus. Independent luminescence lifetime studies of the nanoparticles in different media and under aggregation conditions postulate that the unusual long lifetimes observed can be attributed to interaction with proteins rather than nanoparticle aggregation. Total internal reflection fluorescence microscopy (TIRF), confocal microscopy studies and 3D luminescence lifetime stacks confirm the presence of bright, nonaggregated nanoparticles inside the cell. Inductively coupled plasma mass spectrometry (ICPMS) analysis further supports the presence of the nanoparticles in cells. The iridium-coated nanoparticles provide new nanoprobes for lifetime detection with dual channel monitoring. The combination of the sensitivity of the iridium signal to the cell environment together with the nanoscaffold to guide delivery offer opportunities for iridium nanoparticles for targeting and tracking in in vivo models.
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Affiliation(s)
| | | | | | | | | | | | | | - Andrew D Ward
- Central Laser Facility, Rutherford Appleton Laboratory, Research Complex Harwell, STFC, Didcot OX11 0QT , United Kingdom
| | | | - Stanley W Botchway
- Central Laser Facility, Rutherford Appleton Laboratory, Research Complex Harwell, STFC, Didcot OX11 0QT , United Kingdom
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21
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Wang W, Yang R, Zhang F, Yuan B, Yang K, Ma Y. Partner-facilitating transmembrane penetration of nanoparticles: a biological test in silico. NANOSCALE 2018; 10:11670-11678. [PMID: 29897087 DOI: 10.1039/c8nr01204k] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Transmembrane penetration of nanoparticles (NPs) promises an effective pathway for cargo delivery into cells, and offers the possibility of organelle-specific targeting for biomedical applications. However, a full understanding of the underlying NP-membrane interaction mechanism is still lacking. In this work, the membrane penetration behavior of NPs is statistically analyzed based on the simulations of over 2.2 ms, which are performed with dissipative particle dynamics (DPD). Influences from multiple factors including the NP concentration, shape and surface chemistry are taken into account. It is interesting to find that, the introduction of a partner NP would greatly facilitate the transmembrane penetration of a host spherical NP. This is probably due to the membrane-mediated cooperation between the NPs. Moreover, the proper selection of a partner NP with specific surface chemistry is of great significance. For example, the best partner for a hydrophilic NP to achieve transmembrane penetration is a Janus-like one, in comparison with the hydrophilic, hydrophobic or randomly surface-decorated NPs. Furthermore, such a partner-facilitating effect in NP translocation also works for a shaped NP although less pronounced. Our results are helpful for a better understanding of the complicated nano-bio interactions, and offer a practical guide to the NP-based drug delivery strategy with high efficiency.
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Affiliation(s)
- W Wang
- Center for Soft Condensed Matter Physics and Interdisciplinary Research, Soochow University, Suzhou, 215006, P. R. China.
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22
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Burns KE, Delehanty JB. Cellular delivery of doxorubicin mediated by disulfide reduction of a peptide-dendrimer bioconjugate. Int J Pharm 2018; 545:64-73. [PMID: 29709616 DOI: 10.1016/j.ijpharm.2018.04.027] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 04/08/2018] [Accepted: 04/13/2018] [Indexed: 02/07/2023]
Abstract
In this study, we developed a peptide-dendrimer-drug conjugate system for the pH-triggered direct cytosolic delivery of the cancer chemotherapeutic doxorubicin (DOX) using the pH Low Insertion Peptide (pHLIP). We synthesized a pHLIP-dendrimer-DOX conjugate in which a single copy of pHLIP displayed a generation three dendrimer bearing multiple copies of DOX via disulfide linkages. Biophysical analysis showed that both the dendrimer and a single DOX conjugate inserted into membrane bilayers in a pH-dependent manner. Time-resolved confocal microscopy indicate the single DOX conjugate may undergo a faster rate of membrane translocation, due to greater nuclear localization of DOX at 24 h and 48 h post delivery. At 72 h, however, the levels of DOX nuclear accumulation for both constructs were identical. Cytotoxicity assays revealed that both constructs mediated ∼80% inhibition of cellular proliferation at 10 µM, the dendrimer complex exhibited a 17% greater cytotoxic effect at lower concentrations and greater than three-fold improvement in IC50 over free DOX. Our findings show proof of concept that the dendrimeric display of DOX on the pHLIP carrier (1) facilitates the pH-dependent and temporally-controlled release of DOX to the cytosol, (2) eliminates the endosomal sequestration of the drug cargo, and (3) augments DOX cytotoxicity relative to the free drug.
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Affiliation(s)
- Kelly E Burns
- Center for Bio/Molecular Science and Engineering, U.S. Naval Research Laboratory, Code 6900, Washington DC 20375, United States; National Research Council, Washington DC 20001, United States
| | - James B Delehanty
- Center for Bio/Molecular Science and Engineering, U.S. Naval Research Laboratory, Code 6900, Washington DC 20375, United States.
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23
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Yan S, Chen J, Cai L, Xu P, Zhang Y, Li S, Hu P, Chen X, Huang M, Chen Z. Phthalocyanine-based photosensitizer with tumor-pH-responsive properties for cancer theranostics. J Mater Chem B 2018; 6:6080-6088. [DOI: 10.1039/c8tb01884g] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
A versatile phthalocyanine-based photosensitizer with tumor-pH-responsive properties for cancer theranostics.
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24
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Yan S, Song X, Liu Y, Dai T, Huang M, Chen X, Chen Z. An efficient synergistic cancer therapy by integrating cell cycle inhibitor and photosensitizer into polydopamine nanoparticles. J Mater Chem B 2018; 6:2620-2629. [DOI: 10.1039/c8tb00076j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A novel polydopamine (PDA) based nanocomposite loaded with cell cycle inhibitor (NOC) and photosensitizer (ZnPc12+) was developed for efficient synergistic cancer therapy.
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Affiliation(s)
- Shufeng Yan
- State Key Laboratory of Structural Chemistry, and CAS Key Laboratory of Design and Assembly of Functional Nanostructures
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
- China
| | - Xiaorong Song
- State Key Laboratory of Structural Chemistry, and CAS Key Laboratory of Design and Assembly of Functional Nanostructures
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
- China
| | - Yan Liu
- State Key Laboratory of Structural Chemistry, and CAS Key Laboratory of Design and Assembly of Functional Nanostructures
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
- China
| | - Tao Dai
- State Key Laboratory of Structural Chemistry, and CAS Key Laboratory of Design and Assembly of Functional Nanostructures
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
- China
| | - Mingdong Huang
- State Key Laboratory of Structural Chemistry, and CAS Key Laboratory of Design and Assembly of Functional Nanostructures
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
- China
| | - Xueyuan Chen
- State Key Laboratory of Structural Chemistry, and CAS Key Laboratory of Design and Assembly of Functional Nanostructures
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
- China
| | - Zhuo Chen
- State Key Laboratory of Structural Chemistry, and CAS Key Laboratory of Design and Assembly of Functional Nanostructures
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
- China
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25
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Rogers NJ, Jeffery HC, Claire S, Lewis DJ, Zikeli G, Hodges NJ, Egginton S, Nash GB, Pikramenou Z. Tailoring iridium luminescence and gold nanoparticle size for imaging of microvascular blood flow. Nanomedicine (Lond) 2017; 12:2725-2740. [PMID: 28960141 DOI: 10.2217/nnm-2017-0211] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
AIM Imaging of blood flow in narrow channels and close to vessel walls is important in cardiovascular research for understanding pathogenesis. Our aim was to provide novel nanoprobes with visible emission and long lifetimes as trackers of flow. MATERIALS & METHODS Gold nanoparticles coated with an iridium complex were prepared. Luminescence imaging was used to monitor their flows in different hematocrit blood and in murine tissues. RESULTS The velocities are independent of hematocrit level and the nanoparticles entering blood circulation can be clearly detected in vessels in lungs, mesentery and the skeletal muscle. CONCLUSION The work introduces for the first time iridium-based yellow-green luminescence with nanoparticle size of 100 nm for visualizing and monitoring flows with much higher resolution than conventional alternatives.
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Affiliation(s)
- Nicola J Rogers
- School of Chemistry, University of Birmingham, Edgbaston, B15 2TT, UK
| | - Hannah C Jeffery
- Institute of Cardiovascular Sciences, University of Birmingham, Edgbaston, B15 2TT, UK
| | - Sunil Claire
- Physical Sciences of Imaging in the Biological Sciences Doctoral Training Centre, University of Birmingham, Edgbaston, B15 2TT, UK
| | - David J Lewis
- School of Chemistry, University of Birmingham, Edgbaston, B15 2TT, UK
| | - Gerald Zikeli
- School of Chemistry, University of Birmingham, Edgbaston, B15 2TT, UK
| | - Nikolas J Hodges
- Physical Sciences of Imaging in the Biological Sciences Doctoral Training Centre, University of Birmingham, Edgbaston, B15 2TT, UK.,School of Biosciences, University of Birmingham, Edgbaston, B15 2TT, UK
| | - Stuart Egginton
- Institute of Cardiovascular Sciences, University of Birmingham, Edgbaston, B15 2TT, UK.,School of Biomedical Sciences, Faculty of Biological Sciences, University of Leeds, Leeds, LS2 9JT, UK
| | - Gerard B Nash
- Institute of Cardiovascular Sciences, University of Birmingham, Edgbaston, B15 2TT, UK.,Physical Sciences of Imaging in the Biological Sciences Doctoral Training Centre, University of Birmingham, Edgbaston, B15 2TT, UK
| | - Zoe Pikramenou
- School of Chemistry, University of Birmingham, Edgbaston, B15 2TT, UK.,Physical Sciences of Imaging in the Biological Sciences Doctoral Training Centre, University of Birmingham, Edgbaston, B15 2TT, UK
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26
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Truman LK, Bradberry SJ, Comby S, Kotova O, Gunnlaugsson T. Surface-Modified Gold Nanoparticles Possessing Two-Channel Responsive EuIII
/TbIII
Cyclen Complexes as Luminescent Logic Gate Mimics. Chemphyschem 2017; 18:1746-1751. [DOI: 10.1002/cphc.201700440] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Indexed: 12/21/2022]
Affiliation(s)
- Laura K. Truman
- School of Chemistry and Trinity Biomedical Sciences Institute; Trinity College Dublin; 152-160 Pearse Street Dublin, Dublin 2 Ireland
| | - Samuel J. Bradberry
- School of Chemistry and Trinity Biomedical Sciences Institute; Trinity College Dublin; 152-160 Pearse Street Dublin, Dublin 2 Ireland
| | - Steve Comby
- School of Chemistry and Trinity Biomedical Sciences Institute; Trinity College Dublin; 152-160 Pearse Street Dublin, Dublin 2 Ireland
| | - Oxana Kotova
- School of Chemistry and Trinity Biomedical Sciences Institute; Trinity College Dublin; 152-160 Pearse Street Dublin, Dublin 2 Ireland
| | - Thorfinnur Gunnlaugsson
- School of Chemistry and Trinity Biomedical Sciences Institute; Trinity College Dublin; 152-160 Pearse Street Dublin, Dublin 2 Ireland
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27
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Ma J, Hu Z, Wang W, Wang X, Wu Q, Yuan Z. pH-Sensitive Reversible Programmed Targeting Strategy by the Self-Assembly/Disassembly of Gold Nanoparticles. ACS APPLIED MATERIALS & INTERFACES 2017; 9:16767-16777. [PMID: 28489342 DOI: 10.1021/acsami.7b00687] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A reversible programmed targeting strategy could achieve high tumor accumulation due to its long blood circulation time and high cellular internalization. Here, targeting ligand-modified poly(ethylene glycol) (PEG-ligand), dibutylamines (Bu), and pyrrolidinamines (Py) were introduced on the surface of gold nanoparticles (Au NPs) for reversible shielding/deshielding of the targeting ligands by pH-responsive self-assembly. Hydrophobic interaction and steric repulsion are the main driving forces for the self-assembly/disassembly of Au NPs. The precise self-assembly (pH ≥ 7.2) and disassembly (pH ≤ 6.8) of Au NPs with different ligands could be achieved by fine-tuning the modifying molar ratio of Bu and Py (Rm), which followed the formula Rm = 1/(-0.0013X2 + 0.0323X + 1), in which X is the logarithm of the partition coefficient of the targeting ligand. The assembled/disassembled behavior of Au NPs at pH 7.2 and 6.8 was confirmed by transmission electron microscopy and dynamic light scattering. Enzyme-linked immunosorbent assays and cellular uptake studies showed that the ligands could be buried inside the assembly and exposed when disassembled. More importantly, this process was reversible, which provides the possibility of prolonging blood circulation by shielding ligands associated with the NPs that were effused from tumor tissue.
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Affiliation(s)
- Jinlong Ma
- Key Laboratory of Functional Polymer Materials of the Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, and ‡Collaborative Innovation Center of Chemical Science and Engineering, Nankai University , Tianjin 300071, China
| | - Zhenpeng Hu
- Key Laboratory of Functional Polymer Materials of the Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, and ‡Collaborative Innovation Center of Chemical Science and Engineering, Nankai University , Tianjin 300071, China
| | - Wei Wang
- Key Laboratory of Functional Polymer Materials of the Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, and ‡Collaborative Innovation Center of Chemical Science and Engineering, Nankai University , Tianjin 300071, China
| | - Xinyu Wang
- Key Laboratory of Functional Polymer Materials of the Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, and ‡Collaborative Innovation Center of Chemical Science and Engineering, Nankai University , Tianjin 300071, China
| | - Qiang Wu
- Key Laboratory of Functional Polymer Materials of the Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, and ‡Collaborative Innovation Center of Chemical Science and Engineering, Nankai University , Tianjin 300071, China
| | - Zhi Yuan
- Key Laboratory of Functional Polymer Materials of the Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, and ‡Collaborative Innovation Center of Chemical Science and Engineering, Nankai University , Tianjin 300071, China
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28
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Applications of pHLIP Technology for Cancer Imaging and Therapy. Trends Biotechnol 2017; 35:653-664. [PMID: 28438340 DOI: 10.1016/j.tibtech.2017.03.014] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Revised: 03/24/2017] [Accepted: 03/29/2017] [Indexed: 12/14/2022]
Abstract
Acidity is a biomarker of cancer that is not subject to the blunting clonal selection effects that reduce the efficacy of other biomarker technologies, such as antibody targeting. The pH (low) insertion peptides (pHLIP®s) provide new opportunities for targeting acidic tissues. Through the physical mechanism of membrane-associated folding, pHLIPs are triggered by the acidic microenvironment to insert and span the membranes of tumor cells. The pHLIP platform can be applied to imaging acidic tissues, delivering cell-permeable and impermeable molecules to the cytoplasm, and promoting the cellular uptake of nanoparticles. Since acidosis is a hallmark of tumor development, progression, and aggressiveness, the pHLIP technology may prove useful in targeting cancer cells and metastases for tumor diagnosis, imaging, and therapy.
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29
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Wang H, Huang Q, Chang H, Xiao J, Cheng Y. Stimuli-responsive dendrimers in drug delivery. Biomater Sci 2017; 4:375-90. [PMID: 26806314 DOI: 10.1039/c5bm00532a] [Citation(s) in RCA: 138] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Dendrimers have shown great promise as carriers in drug delivery due to their unique structures and superior properties. However, the precise control of payload release from a dendrimer matrix still presents a great challenge. Stimuli-responsive dendrimers that release payloads in response to a specific trigger could offer distinct clinical advantages over those dendrimers that release payloads passively. These smart polymers are designed to specifically release their payloads at targeted regions or at constant release profiles for specific therapies. They represent an attractive alternative to targeted dendrimers and enable dendrimer-based therapeutics to be more effective, more convenient, and much safer. The wide range of stimuli, either endogenous (acid, enzyme, and redox potentials) or exogenous (light, ultrasound, and temperature change), allows great flexibility in the design of stimuli-responsive dendrimers. In this review article, we will highlight recent advances and opportunities in the development of stimuli-responsive dendrimers for the treatment of various diseases, with emphasis on cancer. Specifically, the applications of stimuli-responsive dendrimers in drug delivery as well as their mechanisms are intensively reviewed.
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Affiliation(s)
- Hui Wang
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai, 200241, PR China. and Department of Orthopedic Oncology, Changzheng Hospital, The Second Military Medical University, Shanghai, PR China.
| | - Quan Huang
- Department of Orthopedic Oncology, Changzheng Hospital, The Second Military Medical University, Shanghai, PR China.
| | - Hong Chang
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai, 200241, PR China.
| | - Jianru Xiao
- Department of Orthopedic Oncology, Changzheng Hospital, The Second Military Medical University, Shanghai, PR China.
| | - Yiyun Cheng
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai, 200241, PR China.
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Guo Y, Terazzi E, Seemann R, Fleury JB, Baulin VA. Direct proof of spontaneous translocation of lipid-covered hydrophobic nanoparticles through a phospholipid bilayer. SCIENCE ADVANCES 2016; 2:e1600261. [PMID: 27847863 PMCID: PMC5099980 DOI: 10.1126/sciadv.1600261] [Citation(s) in RCA: 84] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Accepted: 09/29/2016] [Indexed: 05/21/2023]
Abstract
Hydrophobic nanoparticles introduced into living systems may lead to increased toxicity, can activate immune cells, or can be used as nanocarriers for drug or gene delivery. It is generally accepted that small hydrophobic nanoparticles are blocked by lipid bilayers and accumulate in the bilayer core, whereas big nanoparticles can only penetrate cells through slow energy-dependent processes, such as endocytosis, lasting minutes. In contrast to expectations, we demonstrate that lipid-covered hydrophobic nanoparticles may translocate through lipid membranes by direct penetration within milliseconds. We identified the threshold size for translocation: nanoparticles with diameters smaller than 5 nm stay trapped in the bilayer, whereas those with diameters larger than 5 nm insert into the bilayer, opening pores in the bilayer. The direct proof of this size-dependent translocation was provided by an in situ observation of a single event of a nanoparticle quitting the bilayer. This was achieved with a specially designed microfluidic device combining optical fluorescence microscopy with simultaneous electrophysiological measurements. A quantitative analysis of the kinetic pathway of a single nanoparticle translocation event demonstrated that the translocation is irreversible and that the nanoparticle can translocate only once. This newly discovered one-way translocation mechanism provides numerous opportunities for biotechnological applications, ranging from targeted biomaterial elimination and/or delivery to precise and controlled trapping of nanoparticles.
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Affiliation(s)
- Yachong Guo
- Departament d’Enginyeria Química, Universitat Rovira i Virgili, 26 Avinguda dels Països Catalans, 43007 Tarragona, Spain
| | - Emmanuel Terazzi
- Department of Inorganic and Analytical Chemistry, University of Geneva, 30 quai Ernest-Ansermet, CH-1211 Geneva 4, Switzerland
| | - Ralf Seemann
- Experimental Physics, Universität des Saarlandes, 66123 Saarbrücken, Germany
| | | | - Vladimir A. Baulin
- Departament d’Enginyeria Química, Universitat Rovira i Virgili, 26 Avinguda dels Països Catalans, 43007 Tarragona, Spain
- Corresponding author.
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31
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LeBarron J, London E. Highly Hydrophilic Segments Attached to Hydrophobic Peptides Translocate Rapidly across Membranes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:10752-10760. [PMID: 27649909 DOI: 10.1021/acs.langmuir.6b02597] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Hydrophilic segments attached to transmembrane helices often cross membranes. In an increasing number of cases, it has become apparent that this occurs in a biologically relevant post-translational event. In this study, we investigate whether juxta-membrane (JM) hydrophilic sequences attached to hydrophobic helices are able to rapidly cross lipid bilayers via their ability or inability to block hydrophobic helix interconversion between a transmembrane (TM) and non-TM membrane-associated state. Interconversion was triggered by changing the protonation state of an Asp residue in the hydrophobic core of the peptides, and peptide configuration was monitored by the fluorescence of a Trp residue at the center of the hydrophobic sequence. In POPC vesicles, conversion of the TM to non-TM state at high pH and the non-TM to TM state at low pH was rapid (seconds or less) for KK, KKNN, and the KKNNNNNN flanking sequences on both N- and C-termini and the KLFAGHQ sequence that flanks the spontaneously TM-inserting 3A protein of polio virus. In vesicles composed of 6:4 (mol/mol) POPC/cholesterol, interconversion was still rapid, with the exception of the peptide flanked by KKNNNNNN sequences, for which the half time of interconversion slowed to minutes. This behavior suggests that, at least in membranes with low levels of cholesterol, movement of hydrophilic JM segments (and analogous hydrophobic loops in multipass TM proteins) across membranes may be more facile than previously thought. This may have important biological implications.
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Affiliation(s)
- Jamie LeBarron
- Stony Brook University Stony Brook, New York 11794-5215, United States
| | - Erwin London
- Stony Brook University Stony Brook, New York 11794-5215, United States
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32
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Wang S, Huang P, Chen X. Hierarchical Targeting Strategy for Enhanced Tumor Tissue Accumulation/Retention and Cellular Internalization. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:7340-64. [PMID: 27255214 PMCID: PMC5014563 DOI: 10.1002/adma.201601498] [Citation(s) in RCA: 268] [Impact Index Per Article: 33.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Revised: 04/14/2016] [Indexed: 05/04/2023]
Abstract
Targeted delivery of therapeutic agents is an important way to improve the therapeutic index and reduce side effects. To design nanoparticles for targeted delivery, both enhanced tumor tissue accumulation/retention and enhanced cellular internalization should be considered simultaneously. So far, there have been very few nanoparticles with immutable structures that can achieve this goal efficiently. Hierarchical targeting, a novel targeting strategy based on stimuli responsiveness, shows good potential to enhance both tumor tissue accumulation/retention and cellular internalization. Here, the recent design and development of hierarchical targeting nanoplatforms, based on changeable particle sizes, switchable surface charges and activatable surface ligands, will be introduced. In general, the targeting moieties in these nanoplatforms are not activated during blood circulation for efficient tumor tissue accumulation, but re-activated by certain internal or external stimuli in the tumor microenvironment for enhanced cellular internalization.
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Affiliation(s)
- Sheng Wang
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Peng Huang
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Shenzhen University, Shenzhen, 518060, P. R. China.
| | - Xiaoyuan Chen
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD, 20892, USA.
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34
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Tian S, Liu G, Wang X, Zhang G, Hu J. pH-Responsive Tumor-Targetable Theranostic Nanovectors Based on Core Crosslinked (CCL) Micelles with Fluorescence and Magnetic Resonance (MR) Dual Imaging Modalities and Drug Delivery Performance. Polymers (Basel) 2016; 8:polym8060226. [PMID: 30979319 PMCID: PMC6432225 DOI: 10.3390/polym8060226] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 05/30/2016] [Accepted: 06/02/2016] [Indexed: 11/16/2022] Open
Abstract
The development of novel theranostic nanovectors is of particular interest in treating formidable diseases (e.g., cancers). Herein, we report a new tumor-targetable theranostic agent based on core crosslinked (CCL) micelles, possessing tumor targetable moieties and fluorescence and magnetic resonance (MR) dual imaging modalities. An azide-terminated diblock copolymer, N₃-POEGMA-b-P(DPA-co-GMA), was synthesized via consecutive atom transfer radical polymerization (ATRP), where OEGMA, DPA, and GMA are oligo(ethylene glycol)methyl ether methacrylate, 2-(diisopropylamino)ethyl methacrylate, and glycidyl methacrylate, respectively. The resulting diblock copolymer was further functionalized with DOTA(Gd) (DOTA is 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetrakisacetic acid) or benzaldehyde moieties via copper(I)-catalyzed alkyne-azide cycloaddition (CuAAC) chemistry, resulting in the formation of DOTA(Gd)-POEGMA-b-P(DPA-co-GMA) and benzaldehyde-POEGMA-b-P(DPA-co-GMA) copolymers. The resultant block copolymers co-assembled into mixed micelles at neutral pH in the presence of tetrakis[4-(2-mercaptoethoxy)phenyl]ethylene (TPE-4SH), which underwent spontaneous crosslinking reactions with GMA residues embedded within the micellar cores, simultaneously switching on TPE fluorescence due to the restriction of intramolecular rotation. Moreover, camptothecin (CPT) was encapsulated into the crosslinked cores at neutral pH, and tumor-targeting pH low insertion peptide (pHLIP, sequence: AEQNPIYWARYADWLFTTPLLLLDLALLVDADEGTCG) moieties were attached to the coronas through the Schiff base chemistry, yielding a theranostic nanovector with fluorescence and MR dual imaging modalities and tumor-targeting capability. The nanovectors can be efficiently taken up by A549 cells, as monitored by TPE fluorescence. After internalization, intracellular acidic pH triggered the release of loaded CPT, killing cancer cells in a selective manner. On the other hand, the nanovectors labeled with DOTA(Gd) contrast agents exhibited increased relaxivity (r₁ = 16.97 mM-1·s-1) compared to alkynyl-DOTA(Gd) small molecule precursor (r₁ = 3.16 mM-1·s-1). Moreover, in vivo MRI (magnetic resonance imaging) measurements revealed CCL micelles with pHLIP peptides exhibiting better tumor accumulation and MR imaging performance as well.
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Affiliation(s)
- Sidan Tian
- Chinese Academy of Sciences Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China.
| | - Guhuan Liu
- Chinese Academy of Sciences Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China.
| | - Xiaorui Wang
- Chinese Academy of Sciences Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China.
| | - Guoying Zhang
- Chinese Academy of Sciences Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China.
| | - Jinming Hu
- Chinese Academy of Sciences Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China.
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Xu P, Wang R, Wang X, Ouyang J. Recent advancements in erythrocytes, platelets, and albumin as delivery systems. Onco Targets Ther 2016; 9:2873-84. [PMID: 27274282 PMCID: PMC4876107 DOI: 10.2147/ott.s104691] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
In the past few years, nanomaterial-based drug delivery systems have been applied to enhance the efficacy of therapeutics and to alleviate negative effects through the controlled delivery of targeting and releasing agents. However, few drug carriers can achieve high targeting efficacy, even when targeting modalities and surface markers are introduced. Immunological problems have also limited their wide applications. Biological drug delivery systems, such as erythrocytes, platelets, and albumin, have been extensively investigated because of their unique properties. In this review, erythrocytes, platelets, and albumin are described as efficient drug delivery systems. Their properties, applications, advantages, and limitations in disease treatment are explained. This review confirms that these systems can be used to facilitate a specific, biocompatible, and smart drug delivery.
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Affiliation(s)
- Peipei Xu
- Department of Hematology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, People's Republic of China
| | - Ruju Wang
- Department of Hematology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, People's Republic of China; Medical School, Southeast University, Nanjing, People's Republic of China
| | - Xiaohui Wang
- Department of Hematology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, People's Republic of China
| | - Jian Ouyang
- Department of Hematology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, People's Republic of China
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Osborne SAM, Pikramenou Z. Highly luminescent gold nanoparticles: effect of ruthenium distance for nanoprobes with enhanced lifetimes. Faraday Discuss 2016; 185:219-31. [PMID: 26419274 DOI: 10.1039/c5fd00108k] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The photophysical properties of gold nanoparticles, AuNPs, with sizes of 13, 50 and 100 nm in diameter, coated with surface-active ruthenium complexes have been studied to investigate the effect of the distance of the ruthenium luminescent centre from the gold surface. Luminescence lifetimes of the three ruthenium probes, RuS1, RuS6 and RuS12, with different length spacer units between the surface active groups and the ruthenium centre were taken. The metal complexes were attached to AuNP13, AuNP50 and AuNP100 via thiol groups using a method of precoating the nanoparticles with a fluorinated surfactant. The luminescence lifetime of the longer spacer unit complex, RuS12, was enhanced by 70% upon attachment to the AuNP when compared to the increase of the short and medium linker unit complexes, RuS1 (20%) and (RuS6 40%) respectively. The effect of the surfactant in the lifetime increase of the ruthenium coated AuNPs was shown to be larger for the medium spacer probe, RuS6. There was no effect of the change of the size of the AuNPs from 13 to 50 or 100 nm.
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Affiliation(s)
- Shani A M Osborne
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK.
| | - Zoe Pikramenou
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK.
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37
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Abstract
Both passive targeting and actively enhanced cellular internalization play significant roles in tumor-targeted therapy. Programmed specific targeting, as a novel targeting strategy that exploits stimuli-responsive structures, expects that nanocarriers show high stability during blood circulation for efficient passive targeting, then respond to tumor internal or external stimuli and transform into more cell-interactive forms upon arrival at the tumor tissue for enhanced cellular internalization. In this Perspective, we introduce recent advances in the design and development of stimuli-responsive programmed specific targeting nanomedicines, which are based on switchable surface charge, activatable targeting molecules, and variable coatings, to combine the advantages of passive targeting and actively enhanced cellular internalization.
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Affiliation(s)
- Sheng Wang
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, Department of Biomedical Engineering, School of Medicine, Shenzhen University, Shenzhen 518060, China
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, Maryland 20892, United States
| | - Peng Huang
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, Department of Biomedical Engineering, School of Medicine, Shenzhen University, Shenzhen 518060, China
- Corresponding Authors: .
| | - Xiaoyuan Chen
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, Maryland 20892, United States
- Corresponding Authors: .
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Abstract
This article gives an overview of the various kinds of nanoparticles (NPs) that are widely used for purposes of fluorescent imaging, mainly of cells and tissues. Following an introduction and a discussion of merits of fluorescent NPs compared to molecular fluorophores, labels and probes, the article assesses the kinds and specific features of nanomaterials often used in bioimaging. These include fluorescently doped silicas and sol-gels, hydrophilic polymers (hydrogels), hydrophobic organic polymers, semiconducting polymer dots, quantum dots, carbon dots, other carbonaceous nanomaterials, upconversion NPs, noble metal NPs (mainly gold and silver), various other nanomaterials, and dendrimers. Another section covers coatings and methods for surface modification of NPs. Specific examples on the use of nanoparticles in (a) plain fluorescence imaging of cells, (b) targeted imaging, (c) imaging of chemical species, and (d) imaging of temperature are given next. A final section covers aspects of multimodal imaging (such as fluorescence/nmr), imaging combined with drug and gene delivery, or imaging combined with therapy or diagnosis. The electronic supplementary information (ESI) gives specific examples for materials and methods used in imaging, sensing, multimodal imaging and theranostics such as imaging combined with drug delivery or photodynamic therapy. The article contains 273 references in the main part, and 157 references in the ESI.
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Affiliation(s)
- Otto S Wolfbeis
- Institute of Analytical Chemistry, Chemo- and Biosensors, University of Regensburg, 93040 Regensburg, Germany.
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Kyrychenko A. NANOGOLD decorated by pHLIP peptide: comparative force field study. Phys Chem Chem Phys 2016; 17:12648-60. [PMID: 25903421 DOI: 10.1039/c5cp01136a] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The potential of gold nanoparticles (AuNPs) in therapeutic and diagnostic cancer applications is becoming increasingly recognized, which focuses on their efficient and specific delivery from passive accumulation in tumour tissue to directly targeting tumor-specific biomarkers. AuNPs functionalized by pH low insertion peptide (pHLIP) have recently revealed the capability of targeting acidic tissues and inserting into cell membranes. However, the structure of AuNP-pHLIP conjugates and fundamental gold-peptide interactions still remain unknown. In this study, we have developed a series of molecular dynamics (MD) models reproducing a small gold nanoparticle coupled to pHLIP. We focus on Au135 nanoparticles that comprise a nearly spherical Au core (diameter ∼ 1.4 nm) functionalized with a monomaleimide moiety, mimicking a commercially available monomaleimido NANOGOLD® labelling agent. To probe the structure and folding of pHLIP, which is attached covalently to the maleimide NANOGOLD particle, we have benchmarked the performances of a series of popular, all-atom force fields (FF), including those of OPLS-AA, AMBER03, three variations of CHARMM FFs, as well as united-atom GROMOS G53A6 FF. We found that CHARMMs and OPLSAA FFs predict that in an aqueous salt solution at a neutral pH, pHLIP is partially bound onto the gold surface through some short hydrophobic peptide stretches, while at the same time, a large portion of peptide remains in solution. In contrast, AMBER03 and G53A6 FFs revealed the formation of compact, tightly bound peptide configurations adsorbed onto the nanoparticle core. To reproduce the experimental physical picture of the peptide adsorption onto gold in unfolded and unstructured conformations, our study suggests CHARMM36 and OPLS-AA FFs as a tool of choice for the computational studies of NANOGOLD decorated by pHLIP.
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Affiliation(s)
- A Kyrychenko
- Institute of Chemistry and School of Chemistry, V. N. Karazin Kharkiv National University, 4 Svobody square, Kharkiv 61022, Ukraine.
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Tapmeier TT, Moshnikova A, Beech J, Allen D, Kinchesh P, Smart S, Harris A, McIntyre A, Engelman DM, Andreev OA, Reshetnyak YK, Muschel RJ. The pH low insertion peptide pHLIP Variant 3 as a novel marker of acidic malignant lesions. Proc Natl Acad Sci U S A 2015; 112:9710-5. [PMID: 26195776 PMCID: PMC4534280 DOI: 10.1073/pnas.1509488112] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Current strategies for early detection of breast and other cancers are limited in part because some lesions identified as potentially malignant do not develop into aggressive tumors. Acid pH has been suggested as a key characteristic of aggressive tumors that might distinguish aggressive lesions from more indolent pathology. We therefore investigated the novel class of molecules, pH low insertion peptides (pHLIPs), as markers of low pH in tumor allografts and of malignant lesions in a mouse model of spontaneous breast cancer, BALB/neu-T. pHLIP Variant 3 (Var3) conjugated with fluorescent Alexa546 was shown to insert into tumor spheroids in a sequence-specific manner. Its signal reflected pH in murine tumors. It was induced by carbonic anhydrase IX (CAIX) overexpression and inhibited by acetazolamide (AZA) administration. By using (31)P magnetic resonance spectroscopy (MRS), we demonstrated that pHLIP Var3 was retained in tumors of pH equal to or less than 6.7 but not in tissues of higher pH. In BALB/neu-T mice at different stages of the disease, the fluorescent signal from pHLIP Var3 marked cancerous lesions with a very low false-positive rate. However, only ∼60% of the smallest lesions retained a pHLIP Var3 signal, suggesting heterogeneity in pH. Taken together, these results show that pHLIP can identify regions of lower pH, allowing for its development as a theranostic tool for clinical applications.
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Affiliation(s)
- Thomas T Tapmeier
- Cancer Research UK and Medical Research Council Oxford Institute for Radiation Oncology and Biology, Department of Oncology, University of Oxford, Oxford OX3 7DQ, United Kingdom
| | - Anna Moshnikova
- Physics Department, University of Rhode Island, Kingston, RI 02881
| | - John Beech
- Cancer Research UK and Medical Research Council Oxford Institute for Radiation Oncology and Biology, Department of Oncology, University of Oxford, Oxford OX3 7DQ, United Kingdom
| | - Danny Allen
- Cancer Research UK and Medical Research Council Oxford Institute for Radiation Oncology and Biology, Department of Oncology, University of Oxford, Oxford OX3 7DQ, United Kingdom
| | - Paul Kinchesh
- Cancer Research UK and Medical Research Council Oxford Institute for Radiation Oncology and Biology, Department of Oncology, University of Oxford, Oxford OX3 7DQ, United Kingdom
| | - Sean Smart
- Cancer Research UK and Medical Research Council Oxford Institute for Radiation Oncology and Biology, Department of Oncology, University of Oxford, Oxford OX3 7DQ, United Kingdom
| | - Adrian Harris
- Weatherall Institute of Molecular Medicine, Department of Oncology, University of Oxford, Oxford OX3 9DS, United Kingdom
| | - Alan McIntyre
- Weatherall Institute of Molecular Medicine, Department of Oncology, University of Oxford, Oxford OX3 9DS, United Kingdom; Cancer Biology, Division of Cancer and Stem Cells, University of Nottingham, Queen's Medical Centre, Nottingham NG7 2UH, United Kingdom
| | - Donald M Engelman
- Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, CT 06520
| | - Oleg A Andreev
- Physics Department, University of Rhode Island, Kingston, RI 02881
| | | | - Ruth J Muschel
- Cancer Research UK and Medical Research Council Oxford Institute for Radiation Oncology and Biology, Department of Oncology, University of Oxford, Oxford OX3 7DQ, United Kingdom;
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41
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Shu NS, Chung MS, Yao L, An M, Qiang W. Residue-specific structures and membrane locations of pH-low insertion peptide by solid-state nuclear magnetic resonance. Nat Commun 2015. [PMID: 26195283 PMCID: PMC4518304 DOI: 10.1038/ncomms8787] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
The pH-low insertion peptide (pHLIP) binds to a membrane at pH 7.4 unstructured but folds across the bilayer as a transmembrane helix at pH∼6. Despite their promising applications as imaging probes and drug carriers that target cancer cells for cytoplasmic cargo delivery, the mechanism of pH modulation on pHLIP-membrane interactions has not been completely understood. Here, we show the first study on membrane-associated pHLIP using solid-state NMR spectroscopy. Data on residue-specific conformation and membrane location describe pHLIP in various surface-bound and membrane-inserted states at pH 7.4, 6.4 and 5.3. The critical membrane-adsorbed state is more complex than previously envisioned. At pH 6.4, for the major unstructured population, the peptide sinks deeper into the membrane in a state II′ that is distinct from the adsorbed state II observed at pH 7.4, which may enable pHLIP to sense slight change in acidity even before insertion. The pH-low insertion peptides (pHLIPs) respond to environmental pH variations by forming transmembrane α-helices. Here, the authors present the residue-specific structures and membrane locations of pHLIPs at different pH levels to probe the mechanism of their pH-dependant membrane insertion.
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Affiliation(s)
- Nicolas S Shu
- Department of Chemistry, State University of New York, Binghamton, New York 13902, USA
| | - Michael S Chung
- Department of Chemistry, State University of New York, Binghamton, New York 13902, USA
| | - Lan Yao
- Department of Physics, Applied Physics and Astronomy, State University of New York, Binghamton, New York 13902, USA
| | - Ming An
- Department of Chemistry, State University of New York, Binghamton, New York 13902, USA
| | - Wei Qiang
- Department of Chemistry, State University of New York, Binghamton, New York 13902, USA
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42
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Cardo L, Thomas SG, Mazharian A, Pikramenou Z, Rappoport JZ, Hannon MJ, Watson SP. Accessible Synthetic Probes for Staining Actin inside Platelets and Megakaryocytes by Employing Lifeact Peptide. Chembiochem 2015; 16:1680-8. [PMID: 26062886 PMCID: PMC4524417 DOI: 10.1002/cbic.201500120] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Indexed: 11/23/2022]
Abstract
Lifeact is a 17-residue peptide that can be employed in cell microscopy as a probe for F-actin when fused to fluorescent proteins, but therefore is not suitable for all cell types. We have conjugated fluorescently labelled Lifeact to three different cell-penetrating systems (a myristoylated carrier (myr), the pH low insertion peptide (pHLIP) and the cationic peptide TAT) as a strategy to deliver Lifeact into cells and developed new tools for actin staining with improved synthetic accessibility and low toxicity, focusing on their suitability in platelets and megakaryocytes. Using confocal microscopy, we characterised the cell distribution of the new hybrids in fixed cells, and found that both myr– and pHLIP–Lifeact conjugates provide efficient actin staining upon cleavage of Lifeact from the carriers, without affecting cell spreading. This new approach could facilitate the design of new tools for actin visualisation.
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Affiliation(s)
- Lucia Cardo
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT (UK).,Centre for Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT (UK)
| | - Steve G Thomas
- Centre for Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT (UK)
| | - Alexandra Mazharian
- Centre for Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT (UK)
| | - Zoe Pikramenou
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT (UK)
| | - Joshua Z Rappoport
- School of Bioscience, University of Birmingham, Edgbaston, Birmingham B15 2TT (UK)
| | - Michael J Hannon
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT (UK).
| | - Stephen P Watson
- Centre for Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT (UK)
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43
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Pereira MC, Arachchige MCM, Reshetnyak YK, Andreev OA. Advanced targeted nanomedicine. J Biotechnol 2015; 202:88-97. [PMID: 25615945 PMCID: PMC4685670 DOI: 10.1016/j.jbiotec.2015.01.009] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2014] [Revised: 01/05/2015] [Accepted: 01/12/2015] [Indexed: 12/27/2022]
Abstract
Targeted drug delivery has been the major topic in drug formulation and delivery. As nanomedicine emerges to create nano scale therapeutics and diagnostics, it is still essential to embed targeting capability to these novel systems to make them useful. Here we discuss various targeting approaches for delivery of therapeutic and diagnostic nano materials in view of search for more universal methods to target diseased tissues. Many diseases are accompanied with hypoxia and acidosis. Coating nanoparticles with pH Low Insertion Peptides (pHLIPs) increases efficiency of targeting acidic diseased tissues. It has been showing promising results to create future nanotheranostics for cancer and other diseases which are dominating in the present world.
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Affiliation(s)
| | - Mohan C M Arachchige
- Department of Physics, University of Rhode Island, 2 Lippit Rd., Kingston, RI 028881, USA
| | - Yana K Reshetnyak
- Department of Physics, University of Rhode Island, 2 Lippit Rd., Kingston, RI 028881, USA
| | - Oleg A Andreev
- Department of Physics, University of Rhode Island, 2 Lippit Rd., Kingston, RI 028881, USA.
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44
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Tomaszewski KA, Radomski MW, Santos-Martinez MJ. Nanodiagnostics, nanopharmacology and nanotoxicology of platelet–vessel wall interactions. Nanomedicine (Lond) 2015; 10:1451-75. [DOI: 10.2217/nnm.14.232] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
In physiological conditions, the interactions between blood platelets and endothelial cells play a major role in vascular reactivity and hemostasis. By contrast, increased platelet activation contributes to the pathogenesis of vascular pathology such as atherosclerosis, thrombosis, diabetes mellitus, hypertension and carcinogenesis. Nanomedicine, including nanodiagnostics and nanotherapeutics is poised to be used in the management of vascular diseases. However, the inherent risk and potential toxicity resultant from the use of nanosized (<100 nm) materials need to be carefully considered. This review, basing on a systematic search of literature provides state-of-the-art and focuses on new discoveries, as well as the potential benefits and threats in the field of nanodiagnostics, nanopharmacology and nanotoxicology of platelet–vessel wall interactions.
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Affiliation(s)
- Krzysztof A Tomaszewski
- School of Pharmacy & Pharmaceutical Sciences & Trinity Biomedical Sciences Institute, The University of Dublin Trinity College, Dublin, Ireland
- Department of Anatomy, Jagiellonian University Medical College, 12 Kopernika St, 31–034 Krakow, Poland
| | - Marek W Radomski
- School of Pharmacy & Pharmaceutical Sciences & Trinity Biomedical Sciences Institute, The University of Dublin Trinity College, Dublin, Ireland
- Kardio-Med Silesia, Zabrze, Poland
- Medical University of Silesia, Katowice, Poland
| | - Maria Jose Santos-Martinez
- School of Pharmacy & Pharmaceutical Sciences & Trinity Biomedical Sciences Institute, The University of Dublin Trinity College, Dublin, Ireland
- School of Medicine, The University of Dublin Trinity College, Dublin, Ireland
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Abstract
Previous research has shown that gold nanoparticles can increase the effectiveness of radiation on cancer cells. Improved radiation effectiveness would allow lower radiation doses given to patients, reducing adverse effects; alternatively, it would provide more cancer killing at current radiation doses. Damage from radiation and gold nanoparticles depends in part on the Auger effect, which is very localized; thus, it is important to place the gold nanoparticles on or in the cancer cells. In this work, we use the pH-sensitive, tumor-targeting agent, pH Low-Insertion Peptide (pHLIP), to tether 1.4-nm gold nanoparticles to cancer cells. We find that the conjugation of pHLIP to gold nanoparticles increases gold uptake in cells compared with gold nanoparticles without pHLIP, with the nanoparticles distributed mostly on the cellular membranes. We further find that gold nanoparticles conjugated to pHLIP produce a statistically significant decrease in cell survival with radiation compared with cells without gold nanoparticles and cells with gold alone. In the context of our previous findings demonstrating efficient pHLIP-mediated delivery of gold nanoparticles to tumors, the obtained results serve as a foundation for further preclinical evaluation of dose enhancement.
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46
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Onyango JO, Chung MS, Eng CH, Klees LM, Langenbacher R, Yao L, An M. Noncanonical amino acids to improve the pH response of pHLIP insertion at tumor acidity. Angew Chem Int Ed Engl 2015; 54:3658-3663. [PMID: 25650762 DOI: 10.1002/anie.201409770] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2014] [Revised: 11/27/2014] [Indexed: 12/17/2022]
Abstract
The pH low insertion peptide (pHLIP) offers the potential to deliver drugs selectively to the cytoplasm of cancer cells based on tumor acidosis. The WT pHLIP inserts into membranes with a pH50 of 6.1, while most solid tumors have extracellular pH (pH(e)) of 6.5-7.0. To close this gap, a SAR study was carried out to search for pHLIP variants with improved pH response. Replacing Asp25 with α-aminoadipic acid (Aad) adjusts the pH50 to 6.74, matching average tumor acidity, and replacing Asp14 with γ-carboxyglutamic acid (Gla) increases the sharpness of pH response (transition over 0.5 instead of 1 pH unit). These effects are additive: the Asp14Gla/Asp25Aad double variant shows a pH50 of 6.79, with sharper transition than Asp25Aad. Furthermore, the advantage of the double variant over WT pHLIP in terms of cargo delivery was demonstrated in turn-on fluorescence assays and anti-proliferation studies (using paclitaxel as cargo) in A549 lung cancer cells at pH 6.6.
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Affiliation(s)
- Joab O Onyango
- Department of Chemistry, State University of New York (SUNY), Binghamton University P. O. Box 6000, Binghamton, NY 13902 (USA)
| | - Michael S Chung
- Department of Chemistry, State University of New York (SUNY), Binghamton University P. O. Box 6000, Binghamton, NY 13902 (USA)
| | - Chee-Huat Eng
- Department of Chemistry, State University of New York (SUNY), Binghamton University P. O. Box 6000, Binghamton, NY 13902 (USA)
| | - Lukas M Klees
- Department of Chemistry, State University of New York (SUNY), Binghamton University P. O. Box 6000, Binghamton, NY 13902 (USA)
| | - Rachel Langenbacher
- Department of Chemistry, State University of New York (SUNY), Binghamton University P. O. Box 6000, Binghamton, NY 13902 (USA)
| | - Lan Yao
- Department of Physics, Applied Physics and Astronomy State University of New York (SUNY), Binghamton University P. O. Box 6000, Binghamton, NY 13902 (USA)
| | - Ming An
- Department of Chemistry, State University of New York (SUNY), Binghamton University P. O. Box 6000, Binghamton, NY 13902 (USA)
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47
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Onyango JO, Chung MS, Eng CH, Klees LM, Langenbacher R, Yao L, An M. Noncanonical Amino Acids to Improve the pH Response of pHLIP Insertion at Tumor Acidity. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201409770] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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48
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Pezzato C, Maiti S, Chen JLY, Cazzolaro A, Gobbo C, Prins LJ. Monolayer protected gold nanoparticles with metal-ion binding sites: functional systems for chemosensing applications. Chem Commun (Camb) 2015; 51:9922-31. [DOI: 10.1039/c5cc00814j] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Au NPs containing binding sites for metal ions in the monolayer are attractive components of sensing assays.
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Affiliation(s)
- C. Pezzato
- Department of Chemical Sciences
- University of Padova
- 35131 Padova
- Italy
| | - S. Maiti
- Department of Chemical Sciences
- University of Padova
- 35131 Padova
- Italy
| | - J. L.-Y. Chen
- Department of Chemical Sciences
- University of Padova
- 35131 Padova
- Italy
| | - A. Cazzolaro
- Department of Chemical Sciences
- University of Padova
- 35131 Padova
- Italy
| | - C. Gobbo
- Department of Chemical Sciences
- University of Padova
- 35131 Padova
- Italy
| | - L. J. Prins
- Department of Chemical Sciences
- University of Padova
- 35131 Padova
- Italy
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49
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Deacon JC, Engelman DM, Barrera FN. Targeting acidity in diseased tissues: mechanism and applications of the membrane-inserting peptide, pHLIP. Arch Biochem Biophys 2014; 565:40-8. [PMID: 25444855 DOI: 10.1016/j.abb.2014.11.002] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Revised: 10/30/2014] [Accepted: 11/04/2014] [Indexed: 12/24/2022]
Abstract
pHLIPs are a family of soluble ∼36 amino acid peptides, which bind to membrane surfaces. If the environment is acidic, a pHLIP folds and inserts across the membrane to form a stable transmembrane helix, thus preferentially locating itself in acidic tissues. Since tumors and other disease tissues are acidic, pHLIPs' low-pH targeting behavior leads to applications as carriers for diagnostic and surgical imaging agents. The energy of membrane insertion can also be used to promote the insertion of modestly polar, normally cell-impermeable cargos across the cell membrane into the cytosol of targeted cells, leading to applications in tumor-targeted delivery of therapeutic molecules. We review the biochemical and biophysical basis of pHLIPs' unique properties, diagnostic and therapeutic applications, and the principles upon which translational applications are being developed.
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Affiliation(s)
- John C Deacon
- Department of Molecular Biophysics & Biochemistry, Yale University, New Haven, CT 06520, USA
| | - Donald M Engelman
- Department of Molecular Biophysics & Biochemistry, Yale University, New Haven, CT 06520, USA
| | - Francisco N Barrera
- Department of Biochemistry and Cellular and Molecular Biology, University of Tennessee, Knoxville, TN 37996, USA.
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50
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