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Trivedi M, Johri P, Singh A, Singh R, Tiwari RK. Latest Tools in Fight Against Cancer: Nanomedicines. Nanobiomedicine (Rij) 2020. [DOI: 10.1007/978-981-32-9898-9_6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023] Open
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2
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Abstract
Nanotechnology is a multidisciplinary field that covers a vast and diverse array of devices derived from physics, biology, engineering, and chemistry. Applications of nanotechnology to medicine and physiology imply materials and devices designed to interact with the body at subcellular (i.e., molecular) scales with a high degree of specificity. There is considerable useful information about nanotechnology available and already in use. However, at present, it is very incomplete and scattered. We realized many doctors are unaware of nanotechnology used during surgery and its future prospects in patients. Though most medical products that use nanotechnology are still in the research and development stage, there are a few which are commercially available. Nanotechnology has grown by leaps and bounds over the last few years; applications of this technology in the field of medicine and surgery have been an important spin-off. Many biological structures are at nanometer scale used by surgeons in orthopedic, dental, and neurosurgeries. This article starts with the basics of the nanotechnology and how it is utilized through most medical products. This important article, which is felt to offer high educational value for the doctors, have been selected from an extensive search on the internet, and elaborately discussed. In this review, the scientific and technical aspects of nanotechnology are introduced, and some of its potential clinical applications are discussed.
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Affiliation(s)
- Sanjeev Singh
- Department of Anaesthesia and Intensive Care, School of Medical Sciences, College of Health Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana, West Africa ; NHIMS, Department of Cardiac Anaesthesia, Bangalore, India
| | - Arti Singh
- Department of Public health, KNUST Hospital, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana, West Africa
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3
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Rajh T, Dimitrijevic NM, Bissonnette M, Koritarov T, Konda V. Titanium Dioxide in the Service of the Biomedical Revolution. Chem Rev 2014; 114:10177-216. [DOI: 10.1021/cr500029g] [Citation(s) in RCA: 222] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Tijana Rajh
- Center
for Nanoscale Materials, Argonne National Laboratory, 9700 South
Cass Avenue, Argonne, Illinois 60540, United States
| | - Nada M. Dimitrijevic
- Center
for Nanoscale Materials, Argonne National Laboratory, 9700 South
Cass Avenue, Argonne, Illinois 60540, United States
| | - Marc Bissonnette
- Department
of Medicine, The University of Chicago Medicine, 5841 South Maryland Avenue, MC 4076, Chicago, Illinois 60637, United States
| | - Tamara Koritarov
- Center
for Nanoscale Materials, Argonne National Laboratory, 9700 South
Cass Avenue, Argonne, Illinois 60540, United States
- School
of Medicine, Boston University, 72 East Concord Street, Boston, Massachusetts 02118, United States
| | - Vani Konda
- Department
of Medicine, The University of Chicago Medicine, 5841 South Maryland Avenue, MC 4076, Chicago, Illinois 60637, United States
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Koudelka KJ, Ippoliti S, Medina E, Shriver LP, Trauger SA, Catalano CE, Manchester M. Lysine Addressability and Mammalian Cell Interactions of Bacteriophage λ Procapsids. Biomacromolecules 2013; 14:4169-76. [DOI: 10.1021/bm401577f] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Kristopher J. Koudelka
- Departments
of Chemistry and Biology, Carthage College, Kenosha, Wisconsin, United States
| | - Shannon Ippoliti
- Department
of Chemistry, University of San Diego, San Diego, California, United States
| | - Elizabeth Medina
- School
of Pharmacy, University of Washington, Seattle, Washington, United States
- Department
of Medicine, University of Colorado, Denver, Colorado, United States
| | - Leah P. Shriver
- Skaggs
School of Pharmacy and Pharmaceutical Sciences, University of California, San
Diego, California, United States
| | - Sunia A. Trauger
- Small
Molecule
Mass Spectrometry Facility, Harvard University, Cambridge, Massachusetts, United States
| | - Carlos E. Catalano
- School
of Pharmacy, University of Washington, Seattle, Washington, United States
| | - Marianne Manchester
- Skaggs
School of Pharmacy and Pharmaceutical Sciences, University of California, San
Diego, California, United States
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Lo ST, Kumar A, Hsieh JT, Sun X. Dendrimer nanoscaffolds for potential theranostics of prostate cancer with a focus on radiochemistry. Mol Pharm 2013; 10:793-812. [PMID: 23294202 DOI: 10.1021/mp3005325] [Citation(s) in RCA: 80] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Dendrimers are a class of structurally defined macromolecules featured with a central core, a low-density interior formed by repetitive branching units, and a high-density exterior terminated with surface functional groups. In contrast to their polymeric counterparts, dendrimers are nanosized and symmetrically shaped, which can be reproducibly synthesized on a large scale with monodispersity. These unique features have made dendrimers of increasing interest for drug delivery and other biomedical applications as nanoscaffold systems. Intended to address the potential use of dendrimers for the development of theranostic agents, which combines therapeutics and diagnostics in a single entity for personalized medicine, this review focuses on the reported methodologies of using dendrimer nanoscaffolds for targeted imaging and therapy of prostate cancer. Of particular interest, relevant chemistry strategies are discussed due to their important roles in the design and synthesis of diagnostic and therapeutic dendrimer-based nanoconjugates and potential theranostic agents, targeted or nontargeted. Given the developing status of nanoscaffolded theranostics, major challenges and potential hurdles are discussed along with the examples representing current advances.
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Affiliation(s)
- Su-Tang Lo
- Department of Radiology, University of Texas Southwestern Medical Center, Dallas, Texas 75390, USA
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Abstract
Magnetic resonance imaging (MRI) is a key imaging modality in cancer diagnostics and therapy monitoring. MRI-based tumor detection and characterization is commonly achieved by exploiting the compositional, metabolic, cellular, and vascular differences between malignant and healthy tissue. Contrast agents are frequently applied to enhance this contrast. The last decade has witnessed an increasing interest in novel multifunctional MRI probes. These multifunctional constructs, often of nanoparticle design, allow the incorporation of multiple imaging agents for complementary imaging modalities as well as anti-cancer drugs for therapeutic purposes. The composition, size, and surface properties of such constructs can be tailored as to improve biodistribution and ensure optimal delivery to the tumor microenvironment by passive or targeted mechanisms. Multifunctional MRI probes hold great promise to facilitate more specific tumor diagnosis, patient-specific treatment planning, the monitoring of local drug delivery, and the early evaluation of therapy. This chapter reviews the state-of-the-art and new developments in the application of multifunctional MRI probes in oncology.
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Affiliation(s)
- Ewelina Kluza
- Biomedical NMR, Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands.
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Agrawal A, Manchester M. Differential uptake of chemically modified cowpea mosaic virus nanoparticles in macrophage subpopulations present in inflammatory and tumor microenvironments. Biomacromolecules 2012; 13:3320-6. [PMID: 22963597 PMCID: PMC3590107 DOI: 10.1021/bm3010885] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
There remains a tremendous need to develop targeted therapeutics that can both image and localize the toxic effects of chemotherapeutics and antagonists on diseased tissue while reducing adverse systemic effects. These needs have fostered the development of a nanotechnology-based approach that can combine targeting and toxicity potential. In this study, CPMV nanoparticles were chemically modified with the dye Alexa Flour 488 and were also tandemly modified with PEG1000 followed by AF488; and the derivatized nanoparticles were subsequently added to macrophages stimulated with either LPS (M1) or IL-4 (M2). Previously published studies have shown that M1/M2 macrophages are both present in an inflammatory microenvironment (such as a tumor microenvironment and atherosclerosis) and play opposing yet balancing roles; M2 macrophages have a delayed and progressive onset in the tumor microenvironment (concomitant with an immunosuppression of M1 macrophages). In this study, we show higher uptake of CPMV-AF488 and CPMV-PEG-AF488 by M2 macrophages compared to M1 macrophages. M1 macrophages showed no uptake of CPMV-PEG-AF488. More specifically, M2 macrophages are known to be up-regulated in early atherosclerosis plaque. Indeed, previous work showed that M2 macrophages in plaque also correlate with CPMV internalization. These studies emphasize the potential effectiveness of CPMV as a tailored vehicle for targeting tumor macrophages involved in cancer metastasis or vascular inflammation and further highlight the potential of CPMV in targeted therapeutics against other diseases.
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Affiliation(s)
- Arpita Agrawal
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, La Jolla, CA 92093, USA
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Fakruddin M, Hossain Z, Afroz H. Prospects and applications of nanobiotechnology: a medical perspective. J Nanobiotechnology 2012; 10:31. [PMID: 22817658 PMCID: PMC3422163 DOI: 10.1186/1477-3155-10-31] [Citation(s) in RCA: 132] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2012] [Accepted: 07/20/2012] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND Nanobiotechnology is the application of nanotechnology in biological fields. Nanotechnology is a multidisciplinary field that currently recruits approach, technology and facility available in conventional as well as advanced avenues of engineering, physics, chemistry and biology. METHOD A comprehensive review of the literature on the principles, limitations, challenges, improvements and applications of nanotechnology in medical science was performed. RESULTS Nanobiotechnology has multitude of potentials for advancing medical science thereby improving health care practices around the world. Many novel nanoparticles and nanodevices are expected to be used, with an enormous positive impact on human health. While true clinical applications of nanotechnology are still practically inexistent, a significant number of promising medical projects are in an advanced experimental stage. Implementation of nanotechnology in medicine and physiology means that mechanisms and devices are so technically designed that they can interact with sub-cellular (i.e. molecular) levels of the body with a high degree of specificity. Thus therapeutic efficacy can be achieved to maximum with minimal side effects by means of the targeted cell or tissue-specific clinical intervention. CONCLUSION More detailed research and careful clinical trials are still required to introduce diverse components of nanobiotechnology in random clinical applications with success. Ethical and moral concerns also need to be addressed in parallel with the new developments.
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Affiliation(s)
- Md Fakruddin
- Institute of Food Science and Technology (IFST), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka, Bangladesh
| | - Zakir Hossain
- Institute of Food Science and Technology (IFST), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka, Bangladesh
| | - Hafsa Afroz
- Department of Microbiology, Primeasia University, Dhaka, Bangladesh
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Chandki R, Kala M, Kumar KN, Brigit B, Banthia P, Banthia R. 'Nanodentistry': Exploring the beauty of miniature. J Clin Exp Dent 2012; 4:e119-24. [PMID: 24558536 PMCID: PMC3908795 DOI: 10.4317/jced.50720] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2011] [Accepted: 12/27/2011] [Indexed: 11/05/2022] Open
Abstract
Feynman’s early vision in 1959 gave birth to the concept of nanotechnology. He saw it as an unavoidable development in the progress of science and said that there is plenty of room at the bottom. Since then, nanotechnology has been part of mainstream scientific theory with potential medical and dental applications. Numerous theoretical predictions have been made based on the potential applications of nanotechnology in dentistry, with varying levels of optimism. While a few layers of nanotechnologic capability have become a reality for oral health in the last decade, many of these applications are still in their puerile stage .The most substantial contribution of nanotechnology to dentistry till date, is the more enhanced restoration of tooth structure with nanocomposites. The field of nanotechnology has tremendous potential, which if harnessed efficiently, can bring out significant benefits to the human society such as improved health, better use of natural resources, and reduced environmental pollution. The future holds in store an era of dentistry in which every procedure will be performed using equipments and devices based on nanotechnology. This article reviews the current status and the potential clinical applications of nanotechnology in dentistry.
Key words:Nanotechnology, nanodentistry, nanocomposites.
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Affiliation(s)
- Rita Chandki
- M.D.S., Post graduate student. Department of conservative dentistry and Endodontics. Govt.Dental college and Research Institute, Bangalore, India
| | - M Kala
- M.D.S., Professor and Head. Department of conservative dentistry and Endodontics. Govt.Dental college and Research Institute, Bangalore, India
| | - Kiran N Kumar
- M.D.S. Reader. Department of conservative dentistry and Endodontics, Govt.Dental college and Research Institute, Bangalore, Karnataka, India
| | - Biji Brigit
- M.D.S. Senior lecturer. Department of conservative dentistry and Endodontics, Govt.Dental college and Research Institute, Bangalore, Karnataka, India
| | - Priyank Banthia
- M.D.S., Professor and Head. Department of Periodontics. Indraprastha dental college, Ghaziabad,India
| | - Ruchi Banthia
- M.D.S., Professor. Department of Periodontics. Modern dental college and research center, Indore, India
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Nanomedicine and veterinary science: the reality and the practicality. Vet J 2012; 193:12-23. [PMID: 22365842 DOI: 10.1016/j.tvjl.2012.01.002] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2011] [Revised: 12/20/2011] [Accepted: 01/03/2012] [Indexed: 01/04/2023]
Abstract
Nanomedicine is a rapidly expanding field with a promising future that is already permeating veterinary science. This review summarises the current applications for nanoparticles in human medicine and explores their potential applicability for veterinary use. The principles underlying the use of nanoparticles in drug delivery, imaging and as vaccine adjuvants are explored along with the unique issues surrounding nanoparticle toxicity and regulatory approval. A brief overview of the properties of different nanoparticle systems including, liposomes, micelles, emulsions and inorganic nanoparticles, is provided, along with a description of their current and potential future applications in veterinary medicine.
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Niers JM, Chen JW, Weissleder R, Tannous BA. Enhanced in vivo imaging of metabolically biotinylated cell surface reporters. Anal Chem 2011; 83:994-9. [PMID: 21214190 DOI: 10.1021/ac102758m] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Metabolic biotinylation of intracellular and secreted proteins as well as surface receptors in mammalian cells provides a versatile way to monitor gene expression; to purify and target viral vectors; to monitor cell and tumor distribution in real time in vivo; to label cells for isolation; and to tag proteins for purification, localization, and trafficking. Here, we show that metabolic biotinylation of proteins fused to the bacterial biotin acceptor peptides (BAP) varies among different mammalian cell types and can be enhanced by over 10-fold upon overexpression of the bacterial biotin ligase directed to the same cellular compartment as the fusion protein. We also show that in vivo imaging of metabolically biotinylated cell surface receptors using streptavidin conjugates is significantly enhanced upon coexpression of bacterial biotin ligase in the secretory pathway. These findings have practical applications in designing more efficient targeting and imaging strategies.
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Affiliation(s)
- Johanna M Niers
- Neuroscience Center, Department of Neurology, Massachusetts General Hospital, Charlestown, Massachusetts 02129, USA
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12
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Bharali DJ, Mousa SA. Emerging nanomedicines for early cancer detection and improved treatment: Current perspective and future promise. Pharmacol Ther 2010; 128:324-35. [DOI: 10.1016/j.pharmthera.2010.07.007] [Citation(s) in RCA: 150] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2010] [Accepted: 07/14/2010] [Indexed: 11/26/2022]
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Lü JM, Wang X, Marin-Muller C, Wang H, Lin PH, Yao Q, Chen C. Current advances in research and clinical applications of PLGA-based nanotechnology. Expert Rev Mol Diagn 2009; 9:325-41. [PMID: 19435455 DOI: 10.1586/erm.09.15] [Citation(s) in RCA: 555] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Co-polymer poly(lactic-co-glycolic acid) (PLGA) nanotechnology has been developed for many years and has been approved by the US FDA for the use of drug delivery, diagnostics and other applications of clinical and basic science research, including cardiovascular disease, cancer, vaccine and tissue engineering. This article presents the more recent successes of applying PLGA-based nanotechnologies and tools in these medicine-related applications. It focuses on the possible mechanisms, diagnosis and treatment effects of PLGA preparations and devices. This updated information will benefit to both new and established research scientists and clinical physicians who are interested in the development and application of PLGA nanotechnology as new therapeutic and diagnostic strategies for many diseases.
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Affiliation(s)
- Jian-Ming Lü
- Michael E DeBakey Department of Surgery, Division of Vascular Surgery and Endovascular Therapy, Baylor College of Medicine, Houston, TX 77030, USA
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MRI of subclinical coronary atherosclerosis. CURRENT CARDIOVASCULAR IMAGING REPORTS 2009. [DOI: 10.1007/s12410-009-0013-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Yezhelyev M, Yacoub R, O’Regan R. Inorganic nanoparticles for predictive oncology of breast cancer. Nanomedicine (Lond) 2009; 4:83-103. [DOI: 10.2217/17435889.4.1.83] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Nanoparticles (NPs) and nanosized objects are being incorporated rapidly into clinical medicine and particularly into the field of medical oncology, including breast cancer. A number of novel methods for breast cancer diagnosis and treatment, which are based on NPs and other nanodevices, are now available for translation into clinical practice. Computer tomography and MRI with iron-based magnetic NPs are promising methods for radiological detection of cancers. Semiconductor fluorescent NPs (quantum dots) are being developed for simultaneous detection and localization of multiple breast cancer biomarkers, enabling the personalization of therapeutic regimens for each patient. Additionally, inorganic NPs can be conjugated with tumor-specific ligands and used for tumor-selective delivery of chemotherapeutic or hormonal agents. NPs bearing tumor-targeted antibodies and oligonucleotides for anticancer gene therapy are a novel and rapidly developing therapeutic approach in oncology. Nab-paclitaxel and liposomal anthracyclines are US FDA-approved NP-based drug-delivery systems that have demonstrated at least equivalent efficacy and decreased toxicity compared with conventional chemotherapeutic agents used in the treatment of breast cancer. This review focuses on recent applications of NPs into predictive oncology of breast cancer with an emphasis placed on the role of inorganic nanosized objects in the diagnosis and treatment of this malignancy.
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Affiliation(s)
- Maksym Yezhelyev
- Winship Cancer Institute, 1701 Upper Gate Drive, Emory University, Atlanta, GA 30322, USA
| | - Rami Yacoub
- Winship Cancer Institute, 1701 Upper Gate Drive, Emory University, Atlanta, GA 30322, USA
| | - Ruth O’Regan
- Winship Cancer Institute, 1701 Upper Gate Drive, Emory University, Atlanta, GA 30322, USA
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Huang G, Zhou Z, Srinivasan R, Penn MS, Kottke-Marchant K, Marchant RE, Gupta AS. Affinity manipulation of surface-conjugated RGD peptide to modulate binding of liposomes to activated platelets. Biomaterials 2008; 29:1676-85. [PMID: 18192005 DOI: 10.1016/j.biomaterials.2007.12.015] [Citation(s) in RCA: 100] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2007] [Accepted: 12/16/2007] [Indexed: 12/21/2022]
Abstract
Platelet adhesion, activation and fibrinogen-mediated aggregation are primary events in vascular thrombosis and occlusion. An injectable delivery system that can carry thrombolytics selectively to the sites of active platelet aggregation has immense potential in minimally invasive targeted therapy of vascular occlusion. To this end we are studying liposomes surface-modified by fibrinogen-mimetic RGD motifs that can selectively target and bind integrin GPIIb-IIIa on activated platelets. Here we report liposome surface-modification with a conformationally constrained high affinity cyclic RGD motif to modulate the GPIIb-IIIa-binding capability of the liposomes. Such affinity enhancement is important for practical in vivo applications to compete with native fibrinogen towards binding GPIIb-IIIa. The platelet-binding of RGD-modified liposomes was studied by fluorescence and scanning electron microscopy, and flow cytometry, in vitro. Binding of RGD-modified liposomes was also tested in vivo in a rat carotid injury model and analyzed ex vivo by fluorescence microscopy. The results from all experiments show that cyclic RGD-liposomes bind activated platelets significantly higher compared to linear RGD-liposomes. Hence, the results establish the feasibility of modulating the platelet-targeting and binding ability of vascularly targeted liposomes by manipulating the affinity of surface-modifying ligands.
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Affiliation(s)
- Guofeng Huang
- Department of Biomedical Engineering, Case Western Reserve University, Wickenden Building, 10900 Euclid Avenue, Cleveland, OH 44106-7207, USA
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Mata JE, Dyal LA, Slauson ME, Summerton JE, Loehr C, Tyson AR, Rodriguez-Proteau R, Gustafson SB. Tumor imaging using technetium-99m bound to pH-sensitive peptides. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2007; 3:297-305. [PMID: 17900997 DOI: 10.1016/j.nano.2007.08.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2007] [Revised: 08/03/2007] [Accepted: 08/15/2007] [Indexed: 11/18/2022]
Abstract
Solid tumors often display metabolic abnormalities that consistently produce low pH in the extracellular space of poorly perfused tissue. These acidic regions may provide a mechanism for drug targeting. Peptides have been designed in such a manner that they exist in an anionic hydrophilic form at the pH of normal tissues, but then undergo a sharp transition to a non-ionic lipophilic form at reduced pH. Peptides were labeled with fluorescein or technetium-99m (99mTc) and evaluated in vitro and in two murine models of cancer. Our studies suggest that PAP-1, an 18 amino acid pH activated peptide with a pH of transition between hydrophilic and lipophilic forms (pT) of 6.4, will deliver fluorescein and 99mTc to tumors. Activation of PAP-1 by low pH and penetration into the plasma membrane of cells and tumors were confirmed using flow cytometry, fluorescence microscopy, and gamma scintigraphy. These results support our central hypothesis that PAP-1 may enable the selective delivery of macromolecules to tumors. This technology has potential for exploiting a common property of tumors to achieve highly specific medical intervention.
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Affiliation(s)
- John E Mata
- Department of Biomedical Sciences, College of Veterinary Medicine, Oregon State University, Corvallis, Oregon 97331, USA.
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Abstract
The rapid progress of nanoscience and the application of nanotechnology are changing the foundations of diagnosis, treatment, and prevention of cardiovascular diseases. As the core of nanotechnology, nano- and microparticles offer "three-in-one" functions as imaging agents, target probes, and therapeutic carriers. While nano- and microparticle-based imaging of cardiovascular interventions is still in its developing phase, it has already presented the exciting potential to monitor primary interventional procedures for precise therapeutic delivery, enhance the effectiveness of delivered therapeutics, and monitor therapeutic efficiency after interventions performed to treat cardiovascular diseases. This article provides an overview of the current status of the application of nano- and microparticles in the imaging of cardiovascular interventions.
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Affiliation(s)
- Xiaoming Yang
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
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The present and future of nanotechnology in human health care. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2007; 3:20-31. [PMID: 17379166 DOI: 10.1016/j.nano.2006.11.008] [Citation(s) in RCA: 361] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2006] [Revised: 10/04/2006] [Accepted: 11/21/2006] [Indexed: 12/13/2022]
Abstract
Nanotechnology is a multidisciplinary field that covers a vast and diverse array of devices derived from engineering, physics, chemistry, and biology. The burgeoning new field of nanotechnology, opened up by rapid advances in science and technology, creates myriad new opportunities for advancing medical science and disease treatment in human health care. Applications of nanotechnology to medicine and physiology imply materials and devices designed to interact with the body at subcellular (i.e., molecular) scales with a high degree of specificity. This can be potentially translated into targeted cellular and tissue-specific clinical applications designed to achieve maximal therapeutic efficacy with minimal side effects. In this review the chief scientific and technical aspects of nanotechnology are introduced, and some of its potential clinical applications are discussed.
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Lipinski MJ, Amirbekian V, Frias JC, Aguinaldo JGS, Mani V, Briley-Saebo KC, Fuster V, Fallon JT, Fisher EA, Fayad ZA. MRI to detect atherosclerosis with gadolinium-containing immunomicelles targeting the macrophage scavenger receptor. Magn Reson Med 2006; 56:601-10. [PMID: 16902977 DOI: 10.1002/mrm.20995] [Citation(s) in RCA: 136] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The ability to specifically image macrophages may enable improved detection and characterization of atherosclerosis. In this study we evaluated the in vitro uptake of gadolinium (Gd)-containing immunomicelles (micelles linked to macrophage-specific antibody), micelles, and standard contrast agents by murine macrophages, and sought to determine whether immunomicelles and micelles improve ex vivo imaging of apolipoprotein E knockout (ApoE KO) murine atherosclerosis. Murine RAW 264.7 macrophages were incubated with Gd-DTPA, micelles, and immunomicelles. Cell pellets were prepared and imaged using a 1.5 T MR system with an inversion recovery spin-echo sequence to determine the in vitro T1 values. Ex vivo analysis of mouse aortas was performed using a 9.4T MR system with a high-spatial-resolution sequence (78x39x78 microm3). The T1 value was significantly decreased in cells treated with micelles compared to Gd-DTPA (P<0.0001), and in cells incubated at 4 degrees C with immunomicelles compared to micelles (P<0.05). Ex vivo MRI signal intensity (SI) was significantly increased by 81% and 20% in aortas incubated with immunomicelles and micelles, respectively. Confocal microscopy demonstrated in vitro and ex vivo uptake of fluorescent immunomicelles by macrophages. Immunomicelles and micelles improve in vitro and ex vivo MR detection of macrophages, and may prove useful in the detection of macrophage-rich plaques.
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Affiliation(s)
- Michael J Lipinski
- Zena and Michael A. Wiener Cardiovascular Institute, Marie-Josée and Henry R. Kravis Cardiovascular Health Center, Imaging Science Laboratories, Department of Radiology, Mount Sinai School of Medicine, New York, New York 10029, USA
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21
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Tartis MS, McCallan J, Lum AFH, LaBell R, Stieger SM, Matsunaga TO, Ferrara KW. Therapeutic effects of paclitaxel-containing ultrasound contrast agents. ULTRASOUND IN MEDICINE & BIOLOGY 2006; 32:1771-80. [PMID: 17112963 DOI: 10.1016/j.ultrasmedbio.2006.03.017] [Citation(s) in RCA: 108] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2005] [Revised: 03/03/2006] [Accepted: 03/16/2006] [Indexed: 05/12/2023]
Abstract
Drug delivery vehicles that combine ultrasonic and molecular targeting are shown to locally concentrate a drug in a region-of-interest. The drug delivery vehicles, referred to as acoustically active lipospheres (AALs), are microbubbles surrounded by a shell of oil and lipid. In a region limited to the focal area of ultrasound application, circulating AALs are deflected by radiation force to a vessel wall and can subsequently be fragmented. Ligands targeting the alphavbeta3 integrin are conjugated to the AAL shell and increase in vitro binding by 26.5-fold over nontargeted agents. Toxicity assays demonstrate that paclitaxel-containing AALs exert a greater antiproliferative effect after insonation than free paclitaxel at an equivalent concentration. Lastly, ultrasound and molecular targeting are combined to deliver a model drug to the endothelium and interstitium of chorioallantoic membrane vasculature in vivo.
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