1
|
Zheng N, Yao Z, Tao S, Almadhor A, Alqahtani MS, Ghoniem RM, Zhao H, Li S. Application of nanotechnology in breast cancer screening under obstetrics and gynecology through the use of CNN and ANFIS. ENVIRONMENTAL RESEARCH 2023; 234:116414. [PMID: 37390953 DOI: 10.1016/j.envres.2023.116414] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 05/28/2023] [Accepted: 06/12/2023] [Indexed: 07/02/2023]
Abstract
Breast cancer is the leading reason of death among women aged 35 to 54. Breast cancer diagnosis still presents significant challenges, and preventing the disease's most severe symptoms requires early detection. The role of nanotechnology in the tumor-treatment has recently attracted a lot of interest. In cancer therapies, nanotechnology plays a major role in the medication distribution process. Nanoparticles have the ability to target tumors. Nanoparticles are favorable and maybe preferable for usage in tumor detection and imaging due to their incredibly small size. Quantum dots, semiconductor crystals with increased labeling and imaging capabilities for cancer cells, are one of the particles that have received the most research attention. The design of the research is cross-sectional and descriptive. From April through September of 2020, data were gathered at the State Hospital. All pregnant women who came to the hospital throughout the first and second trimesters of the research's data collection were included in the study population. 100 pregnant women between the ages of 20 and 40 who had not yet had a mammogram comprised the research sample. 1100 digitized mammography images are included in the dataset, which was obtained from a hospital. Convolutional neural networks (CNN) were used to scan all images, and breast masses and mass comparisons were made using the malignant-benign categorization. The adaptive neuro-fuzzy inference system (ANFIS) then examined all of the data obtained by CNN in order to identify breast cancer early using inputs based on the nine different inputs. The precision of the mechanism used in this technique to determine the ideal radius value is significantly impacted by the radius value. Nine variables that define breast cancer indicators were utilized as inputs to the ANFIS classifier, which was then used to identify breast cancer. The parameters were given the necessary fuzzy functions, and the combined dataset was applied to train the method. Testing was initially performed by 30% of dataset that was later done with the real data obtained from the hospital. The accuracy of the results for 30% data was 84% (specificity =72.7%, sensitivity =86.7%) and the results for the real data was 89.8% (sensitivity =82.3%, specificity =75.9%), respectively.
Collapse
Affiliation(s)
- Nan Zheng
- College of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, 311402, China
| | - Zhiang Yao
- Institute of Life Science, Wenzhou University, Wenzhou, 325035, China
| | - Shanhui Tao
- Institute of Life Science, Wenzhou University, Wenzhou, 325035, China
| | - Ahmad Almadhor
- Department of Computer Engineering and Networks, College of Computer and Information Sciences, Jouf University, Sakaka, 72388, Saudi Arabia
| | - Mohammed S Alqahtani
- Radiological Sciences Department, College of Applied Medical Sciences, King Khalid University, Abha, 61421, Saudi Arabia; BioImaging Unit, Space Research Centre, Michael Atiyah Building, University of Leicester, Leicester, LE1 7RH, UK
| | - Rania M Ghoniem
- Department of Information Technology, College of Computer and Information Sciences, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh, 11671, Saudi Arabia
| | - Huajun Zhao
- College of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, 311402, China.
| | - Shijun Li
- Institute of Life Science, Wenzhou University, Wenzhou, 325035, China.
| |
Collapse
|
2
|
Cruz-Hernández C, López-Méndez LJ, Guadarrama P. Dendronization: A practical strategy to improve the performance of molecular systems used in biomedical applications. Eur J Med Chem 2021; 229:113988. [PMID: 34801269 DOI: 10.1016/j.ejmech.2021.113988] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Revised: 11/06/2021] [Accepted: 11/08/2021] [Indexed: 01/05/2023]
Abstract
Nanomedicine is an emerging area that largely influences the efficacy of various therapies through the rational design of new materials exhibiting more targeted behavior. The synthetic effort, the amount of used material, and the cost are critical parameters to bear in mind if the production of the designed material is intended to be scaled for their widespread use. Even though materials science offers diverse options for different types of therapies, it is a difficult task to meet all the parameters mentioned above. The dendronization appears as an insightful approach to incorporate all the known benefits of the dendritic architecture by the attachment of dendrons to therapeutic agents, but in a much more affordable manner in terms of synthetic effort, amount of material, and cost. As will be presented, the most common dendrons used for biomedical applications are polyamide, polyester, carbosilane, polyether, and glycol-type, which are bonded to biological active molecules (BAMs), or molecular nanoplatforms (MPs) by hydrolysable bonds. Also relevant is the fact that the incorporation of dendrons not larger than third generation (G3) is sufficient to improve essential properties of these molecular systems, such as aqueous solubility, stability, and cellular internalization, among others. The type of dendron and its location on the BAMs or MPs, similar to placing a Lego piece on a model, will be decisive for obtaining the desired properties.
Collapse
Affiliation(s)
- Carlos Cruz-Hernández
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Mexico City, 04510, Mexico.
| | - Luis José López-Méndez
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Mexico City, 04510, Mexico
| | - Patricia Guadarrama
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Mexico City, 04510, Mexico.
| |
Collapse
|
3
|
Abstract
Skin-mediated therapeutic delivery is a potential alternative to traditional drug delivery approaches. However, dermal drug delivery is limited to the molecules with optimal physico-chemical properties. To overcome this barrier for delivering ‘nonideal’ drug molecules across the skin, different drug carriers and penetration enhancement methods have been investigated. Conventional chemical and physical approaches for dermal drug delivery are limited by their skin irritation potential, complexity of application and poor patient compliance. In recent years, dendritic polymers have shown potential in improving the dermal delivery of various molecules. With minimal skin irritation potential and high drug loading capacity, dendrimers offer multiple advantages for improving delivery of drugs across the skin. The current review aims to provide an overview of dendritic polymers for dermal (topical and transdermal) drug delivery. [Formula: see text]
Collapse
|
4
|
El Brahmi N, El Kazzouli S, Mignani S, Laurent R, Ladeira S, Caminade AM, Bousmina M, Majoral JP. Symmetrical and unsymmetrical incorporation of active biological monomers on the surface of phosphorus dendrimers. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.01.044] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
|
5
|
Fluorescence Lifetime Imaging of Cancer In Vivo. Methods Mol Biol 2016. [PMID: 27283417 DOI: 10.1007/978-1-4939-3721-9_6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
Optical imaging of fluorescent reporters in animal models of cancer has become a common tool in oncologic research. Fluorescent reporters including fluorescent proteins, organic dyes, and inorganic photonic materials are used in fluorescence spectroscopy, microscopy, and whole body preclinical imaging. Fluorescence lifetime imaging provides additional, quantitative information beyond that of conventional fluorescence intensity signals, enabling signal multiplexing, background separation, and biological sensing unique to fluorescent materials.
Collapse
|
6
|
He S, Tourkakis G, Berezin O, Gerasimchuk N, Zhang H, Zhou H, Izraely A, Akers WJ, Berezin MY. Temperature-dependent shape-responsive fluorescent nanospheres for image-guided drug delivery. JOURNAL OF MATERIALS CHEMISTRY. C 2016; 4:3028-3035. [PMID: 28603621 PMCID: PMC5464001 DOI: 10.1039/c6tc00122j] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Temperature-responsive nanoparticles used in conjunction with hyperthermia promise to provide synergistic effects for increasing drug efficacy. We propose a near-infared (NIR) fluorescent system based on a upper critical solution temperature (UCST) polymer, ISP2, integrated with a NIR fluorescent dye HITC for in vivo tracking. The system forms a nanoparticle that increases its volume as temperature increases, similar to the expansion of a Hoberman sphere. The nanospheres nearly doubled in size, from 80 nm to 140 nm, during a temperature increase from 40°C to 60°C.
Collapse
Affiliation(s)
- Shawn He
- Department of Radiology, Washington University School of Medicine, St. Louis, MO, USA
| | - George Tourkakis
- Department of Radiology, Washington University School of Medicine, St. Louis, MO, USA
| | | | | | - Hairong Zhang
- Department of Radiology, Washington University School of Medicine, St. Louis, MO, USA
| | - Haying Zhou
- Department of Radiology, Washington University School of Medicine, St. Louis, MO, USA
| | | | - Walter J Akers
- Department of Radiology, Washington University School of Medicine, St. Louis, MO, USA
| | - Mikhail Y Berezin
- Department of Radiology, Washington University School of Medicine, St. Louis, MO, USA
- Institute of Materials Science & Engineering, Washington University, St. Louis, MO, USA
| |
Collapse
|
7
|
Draffehn S, Kumke MU. Monitoring the Collapse of pH-Sensitive Liposomal Nanocarriers and Environmental pH Simultaneously: A Fluorescence-Based Approach. Mol Pharm 2016; 13:1608-17. [PMID: 27050158 DOI: 10.1021/acs.molpharmaceut.6b00064] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Nowadays, the encapsulation of therapeutic compounds in so-called carrier systems is a very smart method to achieve protection as well as an improvement of their temporal and spatial distribution. After the successful transport to the point of care, the delivery has to be released under controlled conditions. To monitor the triggered release from the carrier, we investigated different fluorescent probes regarding their response to the pH-induced collapse of pH-sensitive liposomes (pHSLip), which occurs when the environmental pH falls below a critical value. Depending on the probe, the fluorescence decay time as well as fluorescence anisotropy can be used equally as key parameters for monitoring the collapse. Especially the application of a fluorescein labeled fatty acid (fPA) enabled the monitoring of the pHSLips collapse and the pH of its microenvironment simultaneously without interference. Varying the pH in the range of 3 < pH < 9, anisotropy data revealed the critical pH value at which the collapse of the pHSLips occurs. Complementary methods, e.g., fluorescence correlation spectroscopy and dynamic light scattering, supported the analysis based on the decay time and anisotropy. Additional experiments with varying incubation times yielded information on the kinetics of the liposomal collapse.
Collapse
Affiliation(s)
- Sören Draffehn
- Physical Chemistry, Institute of Chemistry, University of Potsdam , Karl-Liebknecht-Str. 24-25, 14476 Potsdam-Golm, Germany
| | - Michael U Kumke
- Physical Chemistry, Institute of Chemistry, University of Potsdam , Karl-Liebknecht-Str. 24-25, 14476 Potsdam-Golm, Germany
| |
Collapse
|
8
|
Ramezanpour M, Leung SSW, Delgado-Magnero KH, Bashe BYM, Thewalt J, Tieleman DP. Computational and experimental approaches for investigating nanoparticle-based drug delivery systems. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2016; 1858:1688-709. [PMID: 26930298 DOI: 10.1016/j.bbamem.2016.02.028] [Citation(s) in RCA: 105] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2016] [Revised: 02/20/2016] [Accepted: 02/23/2016] [Indexed: 12/21/2022]
Abstract
Most therapeutic agents suffer from poor solubility, rapid clearance from the blood stream, a lack of targeting, and often poor translocation ability across cell membranes. Drug/gene delivery systems (DDSs) are capable of overcoming some of these barriers to enhance delivery of drugs to their right place of action, e.g. inside cancer cells. In this review, we focus on nanoparticles as DDSs. Complementary experimental and computational studies have enhanced our understanding of the mechanism of action of nanocarriers and their underlying interactions with drugs, biomembranes and other biological molecules. We review key biophysical aspects of DDSs and discuss how computer modeling can assist in rational design of DDSs with improved and optimized properties. We summarize commonly used experimental techniques for the study of DDSs. Then we review computational studies for several major categories of nanocarriers, including dendrimers and dendrons, polymer-, peptide-, nucleic acid-, lipid-, and carbon-based DDSs, and gold nanoparticles. This article is part of a Special Issue entitled: Membrane Proteins edited by J.C. Gumbart and Sergei Noskov.
Collapse
Affiliation(s)
- M Ramezanpour
- Centre for Molecular Simulation, Department of Biological Sciences, University of Calgary, Calgary, AB T2N 1N4, Canada
| | - S S W Leung
- Department of Physics, Simon Fraser University, Burnaby, BC V5A 1S6, Canada
| | - K H Delgado-Magnero
- Centre for Molecular Simulation, Department of Biological Sciences, University of Calgary, Calgary, AB T2N 1N4, Canada
| | - B Y M Bashe
- Department of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, BC V5A 1S6, Canada
| | - J Thewalt
- Department of Physics, Simon Fraser University, Burnaby, BC V5A 1S6, Canada; Department of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, BC V5A 1S6, Canada
| | - D P Tieleman
- Centre for Molecular Simulation, Department of Biological Sciences, University of Calgary, Calgary, AB T2N 1N4, Canada
| |
Collapse
|
9
|
Ornelas C. Brief Timelapse on Dendrimer Chemistry: Advances, Limitations, and Expectations. MACROMOL CHEM PHYS 2015. [DOI: 10.1002/macp.201500393] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Catia Ornelas
- Institute of Chemistry; University of Campinas - Unicamp; Campinas SP 13083-970 Brazil
| |
Collapse
|
10
|
Salamończyk GM. Efficient synthesis of water-soluble, phosphonate-terminated polyester dendrimers. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.11.035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
11
|
Penjweini R, Deville S, D'Olieslaeger L, Berden M, Ameloot M, Ethirajan A. Intracellular localization and dynamics of Hypericin loaded PLLA nanocarriers by image correlation spectroscopy. J Control Release 2015; 218:82-93. [DOI: 10.1016/j.jconrel.2015.09.064] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2015] [Revised: 09/27/2015] [Accepted: 09/28/2015] [Indexed: 01/17/2023]
|
12
|
García-Gallego S, Nyström AM, Malkoch M. Chemistry of multifunctional polymers based on bis-MPA and their cutting-edge applications. Prog Polym Sci 2015. [DOI: 10.1016/j.progpolymsci.2015.04.006] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
13
|
Fuchs AV, Gemmell AC, Thurecht KJ. Utilising polymers to understand diseases: advanced molecular imaging agents. Polym Chem 2015. [DOI: 10.1039/c4py01311e] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
This review describes how the highly tuneable size, shape and chemical functionality of polymeric molecular imaging agents provides a means to intimately probe the various mechanisms behind disease formation and behaviour.
Collapse
Affiliation(s)
- Adrian V. Fuchs
- Centre for Advanced Imaging and Australian Institute for Bioengineering and Nanotechnology
- The University of Queensland
- St Lucia
- Australia
| | - Anna C. Gemmell
- Centre for Advanced Imaging and Australian Institute for Bioengineering and Nanotechnology
- The University of Queensland
- St Lucia
- Australia
| | - Kristofer J. Thurecht
- Centre for Advanced Imaging and Australian Institute for Bioengineering and Nanotechnology
- The University of Queensland
- St Lucia
- Australia
- ARC Centre of Excellence in Bio-Nano Science and Technology
| |
Collapse
|
14
|
Zhang X, Bresee J, Fields GB, Edwards WB. Near-infrared triple-helical peptide with quenched fluorophores for optical imaging of MMP-2 and MMP-9 proteolytic activity in vivo. Bioorg Med Chem Lett 2014; 24:3786-3790. [PMID: 25047578 DOI: 10.1016/j.bmcl.2014.06.072] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2014] [Revised: 06/20/2014] [Accepted: 06/23/2014] [Indexed: 12/15/2022]
Abstract
The gelatinase members of the MMP family have consistently been associated with tumor invasiveness, which make them an attractive target for molecular imaging. We report new activatable proteolytic optical imaging agents that consist of triple-helical peptide (THP) conjugates, with high specificity to the gelatinases, bearing quenched cypate dyes. With quenching efficiencies up to 51%, the amplified fluorescence signal upon cypate3-THP hydrolysis by the gelatinases (kcat/KM values of 6.4×10(3) M(-1) s(-1) to 9.1×10(3) M(-1) s(-1) for MMP-2 and MMP-9, respectively) in mice bearing human fibrosarcoma xenografted tumors was monitored with fluorescence molecular tomography. There was significant fluorescence enhancement within the tumor and this enhancement was reduced by treatment with pan-MMP inhibitor, Ilomastat. These data, combined with the gelatinase substrate specificity observed in vitro, indicated the observed fluorescence at the site of the tumor was due to gelatinase mediated hydrolysis of cypate3-THP.
Collapse
Affiliation(s)
- Xuan Zhang
- Department of Radiology, University of Pittsburgh, Pittsburgh, PA, 15219, USA
| | - Jamee Bresee
- Department of Radiology, University of Pittsburgh, Pittsburgh, PA, 15219, USA
| | - Gregg B Fields
- Torrey Pines Institute for Molecular Studies, Port St. Lucie, FL, 34987, USA
| | - W Barry Edwards
- Department of Radiology, University of Pittsburgh, Pittsburgh, PA, 15219, USA
| |
Collapse
|
15
|
Ptaszek M. Rational design of fluorophores for in vivo applications. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2014; 113:59-108. [PMID: 23244789 DOI: 10.1016/b978-0-12-386932-6.00003-x] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Several classes of small organic molecules exhibit properties that make them suitable for fluorescence in vivo imaging. The most promising candidates are cyanines, squaraines, boron dipyrromethenes, porphyrin derivatives, hydroporphyrins, and phthalocyanines. The recent designing and synthetic efforts have been dedicated to improving their optical properties (shift the absorption and emission maxima toward longer wavelengths and increase the brightness) as well as increasing their stability and water solubility. The most notable advances include development of encapsulated cyanine dyes with increased stability and water solubility, squaraine rotaxanes with increased stability, long-wavelength-absorbing boron dipyrromethenes, long-wavelength-absorbing porphyrin and hydroporphyrin derivatives, and water-soluble phthalocyanines. Recent advances in luminescence and bioluminescence have made self-illuminating fluorophores available for in vivo applications. Development of new types of hydroporphyrin energy-transfer dyads gives the promise for further advances in in vivo multicolor imaging.
Collapse
Affiliation(s)
- Marcin Ptaszek
- Department of Chemistry and Biochemistry, University of Maryland Baltimore County, Baltimore, Maryland, USA
| |
Collapse
|
16
|
Viger ML, Sheng W, McFearin CL, Berezin MY, Almutairi A. Application of time-resolved fluorescence for direct and continuous probing of release from polymeric delivery vehicles. J Control Release 2013; 171:308-14. [PMID: 23792808 DOI: 10.1016/j.jconrel.2013.06.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2013] [Revised: 06/03/2013] [Accepted: 06/10/2013] [Indexed: 12/30/2022]
Abstract
Though accurately evaluating the kinetics of release is critical for validating newly designed therapeutic carriers for in vivo applications, few methods yet exist for release measurement in real time and without the need for any sample preparation. Many of the current approaches (e.g. chromatographic methods, absorption spectroscopy, or NMR spectroscopy) rely on isolation of the released material from the loaded vehicles, which require additional sample purification and can lead to loss of accuracy when probing fast kinetics of release. In this study we describe the use of time-resolved fluorescence for in situ monitoring of small molecule release kinetics from biodegradable polymeric drug delivery systems. This method relies on the observation that fluorescent reporters being released from polymeric drug delivery systems possess distinct excited-state lifetime components, reflecting their different environments in the particle suspensions, i.e., confined in the polymer matrices or free in the aqueous environment. These distinct lifetimes enable real-time quantitative mapping of the relative concentrations of dye in each population to obtain precise and accurate temporal information on the release profile of particular carrier/payload combinations. We found that fluorescence lifetime better distinguishes subtle differences in release profiles (e.g. differences associated with dye loading) than conventional steady-state fluorescence measurements, which represent the averaged dye behavior over the entire scan. Given the method's applicability to both hydrophobic and hydrophilic cargo, it could be employed to model the release of any drug-carrier combination.
Collapse
Affiliation(s)
- Mathieu L Viger
- School of Pharmacy and Pharmaceutical Sciences, University of California at San Diego, La Jolla, 92093, USA
| | | | | | | | | |
Collapse
|
17
|
Dhal PK, Polomoscanik SC, Gianolio DA, Starremans PG, Busch M, Alving K, Chen B, Miller RJ. Well-Defined Aminooxy Terminated N-(2-Hydroxypropyl) Methacrylamide Macromers for Site Specific Bioconjugation of Glycoproteins. Bioconjug Chem 2013; 24:865-77. [DOI: 10.1021/bc300472e] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Pradeep K. Dhal
- Polymer & Biomaterial R&D, Sanofi-Genzyme R&D Center, Genzyme Corporation—A Sanofi Company, 270 Albany Street, Cambridge, Massachusetts 02139, United States
| | - Steven C. Polomoscanik
- Polymer & Biomaterial R&D, Sanofi-Genzyme R&D Center, Genzyme Corporation—A Sanofi Company, 270 Albany Street, Cambridge, Massachusetts 02139, United States
| | - Diego A. Gianolio
- Polymer & Biomaterial R&D, Sanofi-Genzyme R&D Center, Genzyme Corporation—A Sanofi Company, 270 Albany Street, Cambridge, Massachusetts 02139, United States
| | - Patrick G. Starremans
- Polymer & Biomaterial R&D, Sanofi-Genzyme R&D Center, Genzyme Corporation—A Sanofi Company, 270 Albany Street, Cambridge, Massachusetts 02139, United States
| | - Michelle Busch
- Polymer & Biomaterial R&D, Sanofi-Genzyme R&D Center, Genzyme Corporation—A Sanofi Company, 270 Albany Street, Cambridge, Massachusetts 02139, United States
| | - Kim Alving
- Polymer & Biomaterial R&D, Sanofi-Genzyme R&D Center, Genzyme Corporation—A Sanofi Company, 270 Albany Street, Cambridge, Massachusetts 02139, United States
| | - Bo Chen
- Polymer & Biomaterial R&D, Sanofi-Genzyme R&D Center, Genzyme Corporation—A Sanofi Company, 270 Albany Street, Cambridge, Massachusetts 02139, United States
| | - Robert J. Miller
- Polymer & Biomaterial R&D, Sanofi-Genzyme R&D Center, Genzyme Corporation—A Sanofi Company, 270 Albany Street, Cambridge, Massachusetts 02139, United States
| |
Collapse
|
18
|
Sapsford KE, Algar WR, Berti L, Gemmill KB, Casey BJ, Oh E, Stewart MH, Medintz IL. Functionalizing nanoparticles with biological molecules: developing chemistries that facilitate nanotechnology. Chem Rev 2013; 113:1904-2074. [PMID: 23432378 DOI: 10.1021/cr300143v] [Citation(s) in RCA: 818] [Impact Index Per Article: 74.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Kim E Sapsford
- Division of Biology, Department of Chemistry and Materials Science, Office of Science and Engineering Laboratories, U.S. Food and Drug Administration, Silver Spring, Maryland 20993, United States
| | | | | | | | | | | | | | | |
Collapse
|
19
|
Tissue and cellular localization of nanoparticles using ³⁵S labeling and light microscopic autoradiography. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2013; 9:465-8. [PMID: 23434676 DOI: 10.1016/j.nano.2013.02.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2012] [Revised: 01/31/2013] [Accepted: 02/12/2013] [Indexed: 11/23/2022]
Abstract
UNLABELLED Microscopical visualization of nanoparticles in tissues is essential for assessing their distribution in whole organisms and their interaction with the cellular microenvironment, including possible toxic effects. However, labeling of nanoparticles with fluorescent dyes may affect their physicochemical properties. Moreover, the detection of organic nanoparticles in their tissue context often poses a particular challenge due to their closer similarities with biomolecules. As part of a biodistribution and toxicity study on organic anti-inflammatory nanoscaled dendritic polyglycerol sulfate amine (dPGS amine) we have established light microscopic autoradiography (LMA) for the tracking of (35)S labeled dPGS in standard histopathological tissue samples following intravenous injection in mice. The dPG(35)S amine was specifically localized in hepatic Kupffer cells with no histopathologic evidence of toxic, degenerate or inflammatory side effects. The combination of radiolabeling of organic nanoparticles with LMA offers a novel approach for their localization in microscopical slides, also allowing for a simultaneous standard toxicopathology analysis. FROM THE CLINICAL EDITOR In this study, a novel light microscopic autoradiography utilizing (35)S isotope demonstrates a combined approach to visualize nanoparticle locations in microscopic slides with no obvious toxicity to the studied cells and with minimal external hazard.
Collapse
|
20
|
Ma X, Zhou Z, Jin E, Sun Q, Zhang B, Tang J, Shen Y. Facile Synthesis of Polyester Dendrimers as Drug Delivery Carriers. Macromolecules 2012. [DOI: 10.1021/ma301849a] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Xinpeng Ma
- Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071, United States
| | - Zhuxian Zhou
- Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071, United States
| | - Erlei Jin
- Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071, United States
| | - Qihang Sun
- Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071, United States
| | - Bo Zhang
- Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071, United States
| | - Jianbin Tang
- Key Laboratory of Biomass Chemical Engineering
of Ministry of Education, Center for Bionanoengineering, and Department
of Chemical and Biological Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, China
| | - Youqing Shen
- Key Laboratory of Biomass Chemical Engineering
of Ministry of Education, Center for Bionanoengineering, and Department
of Chemical and Biological Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, China
| |
Collapse
|
21
|
New water-soluble polyanionic dendrimers—phosphoric and 1,3,5-benzenetricarboxylic acid derivatives. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.09.094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
22
|
Mérian J, Gravier J, Navarro F, Texier I. Fluorescent nanoprobes dedicated to in vivo imaging: from preclinical validations to clinical translation. Molecules 2012; 17:5564-91. [PMID: 22576228 PMCID: PMC6268987 DOI: 10.3390/molecules17055564] [Citation(s) in RCA: 109] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2012] [Revised: 05/06/2012] [Accepted: 05/07/2012] [Indexed: 11/30/2022] Open
Abstract
With the fast development, in the last ten years, of a large choice of set-ups dedicated to routine in vivo measurements in rodents, fluorescence imaging techniques are becoming essential tools in preclinical studies. Human clinical uses for diagnostic and image-guided surgery are also emerging. In comparison to low-molecular weight organic dyes, the use of fluorescent nanoprobes can improve both the signal sensitivity (better in vivo optical properties) and the fluorescence biodistribution (passive “nano” uptake in tumours for instance). A wide range of fluorescent nanoprobes have been designed and tested in preclinical studies for the last few years. They will be reviewed and discussed considering the obstacles that need to be overcome for their potential everyday use in clinics. The conjugation of fluorescence imaging with the benefits of nanotechnology should open the way to new medical applications in the near future.
Collapse
Affiliation(s)
| | | | | | - Isabelle Texier
- Author to whom correspondence should be addressed; ; Tel.: +33-438-784-670; Fax: +33-438-785-787
| |
Collapse
|
23
|
Feliu N, Walter MV, Montañez MI, Kunzmann A, Hult A, Nyström A, Malkoch M, Fadeel B. Stability and biocompatibility of a library of polyester dendrimers in comparison to polyamidoamine dendrimers. Biomaterials 2012; 33:1970-81. [DOI: 10.1016/j.biomaterials.2011.11.054] [Citation(s) in RCA: 134] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2011] [Accepted: 11/20/2011] [Indexed: 01/22/2023]
|
24
|
Akers WJ, Xu B, Lee H, Sudlow GP, Fields GB, Achilefu S, Edwards WB. Detection of MMP-2 and MMP-9 activity in vivo with a triple-helical peptide optical probe. Bioconjug Chem 2012; 23:656-63. [PMID: 22309692 DOI: 10.1021/bc300027y] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
We report a novel activatable NIR fluorescent probe for in vivo detection of cancer-related matrix metalloproteinase (MMP) activity. The probe is based on a triple-helical peptide substrate (THP) with high specificity for MMP-2 and MMP-9 relative to other members of the MMP family. MMP-2 and MMP-9 (also known as gelatinases) are specifically associated with cancer cell invasion and cancer-related angiogenesis. At the center of each 5 kDa peptide strand is a gelatinase sensitive sequence flanked by 2 Lys residues conjugated with NIR fluorescent dyes. Upon self-assembly of the triple-helical structure, the 3 peptide chains intertwine, bringing the fluorophores into close proximity and reducing fluorescence via quenching. Upon enzymatic cleavage of the triple-helical peptide, 6 labeled peptide chains are released, resulting in an amplified fluorescent signal. The fluorescence yield of the probe increases 3.8-fold upon activation. Kinetic analysis showed a rate of LS276-THP hydrolysis by MMP-2 (k(cat)/K(M) = 30,000 s(-1) M(-1)) similar to that of MMP-2 catalysis of an analogous fluorogenic THP. Administration of LS276-THP to mice bearing a human fibrosarcoma xenografted tumor resulted in a tumor fluorescence signal more than 5-fold greater than that of muscle. This signal enhancement was reduced by treatment with the MMP inhibitor Ilomostat, indicating that the observed tumor fluorescence was indeed enzyme mediated. These results are the first to demonstrate that triple-helical peptides are suitable for highly specific in vivo detection of tumor-related MMP-2 and MMP-9 activity.
Collapse
Affiliation(s)
- Walter J Akers
- Mallinckrodt Institute of Radiology, Washington University, School of Medicine, St. Louis, Missouri 63110, USA
| | | | | | | | | | | | | |
Collapse
|
25
|
Patsenker LD, Tatarets AL, Povrozin YA, Terpetschnig EA. Long-wavelength fluorescence lifetime labels. ACTA ACUST UNITED AC 2011. [DOI: 10.1007/s12566-011-0025-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
|
26
|
Rancan F, Todorova A, Hadam S, Papakostas D, Luciani E, Graf C, Gernert U, Rühl E, Verrier B, Sterry W, Blume-Peytavi U, Vogt A. Stability of polylactic acid particles and release of fluorochromes upon topical application on human skin explants. Eur J Pharm Biopharm 2011; 80:76-84. [PMID: 21945270 DOI: 10.1016/j.ejpb.2011.09.004] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2011] [Revised: 08/23/2011] [Accepted: 09/07/2011] [Indexed: 12/18/2022]
Abstract
Particle-based drug delivery systems allow the controlled and targeted release of incorporated active compounds to the skin and are promising tools to improve the efficacy of topical therapies. In this study we investigated the stability and release properties of biodegradable polylactic acid (PLA) particles upon topical application on human skin explants. PLA particles loaded with the hydrophilic fluorochrome 4-Di-2-Asp (DiAsp-PLA) were compared to PLA particles loaded with the lipophilic fluorochrome Bodipy 630/650 (BP-PLA). Changes of the particle morphology after their incubation on skin surface were investigated by means of electron microscopy while fluorescence microscopy and flow cytometry were used to evaluate particle penetration in hair follicles and fluorochrome release. We found that BP-PLA particles released rapidly the loaded fluorochrome and lost the particulate morphology within a few hours after application on skin surface. On the contrary, DiAsp-PLA particles maintained the particulate morphology, accumulated in hair follicles, and allowed a constant release of the incorporated fluorochrome for up to 16 h. These results show that, once applied to skin surface, PLA particles release the incorporated fluorochromes in a time-dependent manner and suggest the perspective to modulate particle stability and release properties by incorporating excipients with different degree of lipophilicity.
Collapse
Affiliation(s)
- Fiorenza Rancan
- Clinical Research Center for Hair and Skin Science, Department of Dermatology and Allergy, Charité-Universitätsmedizin Berlin, Berlin, Germany.
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
27
|
Shen Y, Ma X, Zhang B, Zhou Z, Sun Q, Jin E, Sui M, Tang J, Wang J, Fan M. Degradable Dual pH‐ and Temperature‐Responsive Photoluminescent Dendrimers. Chemistry 2011; 17:5319-26. [DOI: 10.1002/chem.201003495] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2010] [Indexed: 12/29/2022]
Affiliation(s)
- Youqing Shen
- Center for Bionanoengineering and State Key Laboratory of Chemical Engineering, Department of Chemical and Biochemical Engineering, Zhejiang University, Hangzhou, 310027 (P.R. China), Fax: (+86) 571‐87953993
- Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, WY 82071 (USA)
| | - Xinpeng Ma
- Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, WY 82071 (USA)
| | - Bo Zhang
- Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, WY 82071 (USA)
| | - Zhuxian Zhou
- Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, WY 82071 (USA)
| | - Qihang Sun
- Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, WY 82071 (USA)
| | - Erlei Jin
- Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, WY 82071 (USA)
| | - Meihua Sui
- Center for Bionanoengineering and State Key Laboratory of Chemical Engineering, Department of Chemical and Biochemical Engineering, Zhejiang University, Hangzhou, 310027 (P.R. China), Fax: (+86) 571‐87953993
| | - Jianbin Tang
- Center for Bionanoengineering and State Key Laboratory of Chemical Engineering, Department of Chemical and Biochemical Engineering, Zhejiang University, Hangzhou, 310027 (P.R. China), Fax: (+86) 571‐87953993
| | - Jinqiang Wang
- Center for Bionanoengineering and State Key Laboratory of Chemical Engineering, Department of Chemical and Biochemical Engineering, Zhejiang University, Hangzhou, 310027 (P.R. China), Fax: (+86) 571‐87953993
| | - Maohong Fan
- Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, WY 82071 (USA)
| |
Collapse
|
28
|
Ornelas C, Lodescar R, Durandin A, Canary JW, Pennell R, Liebes LF, Weck M. Combining Aminocyanine Dyes with Polyamide Dendrons: A Promising Strategy for Imaging in the Near‐Infrared Region. Chemistry 2011; 17:3619-29. [DOI: 10.1002/chem.201002268] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2010] [Indexed: 01/05/2023]
Affiliation(s)
- Cátia Ornelas
- Molecular Design Institute, Department of Chemistry, New York University, 31 Washington Place, New York, NY 10003‐6688 (USA), Fax: (+1) 2129954895
- Department of Chemistry, New York University, 31 Washington Place, New York NY, 10003‐6688 (USA)
| | - Rachelle Lodescar
- Molecular Design Institute, Department of Chemistry, New York University, 31 Washington Place, New York, NY 10003‐6688 (USA), Fax: (+1) 2129954895
- Department of Chemistry, New York University, 31 Washington Place, New York NY, 10003‐6688 (USA)
| | - Alexander Durandin
- Department of Chemistry, New York University, 31 Washington Place, New York NY, 10003‐6688 (USA)
| | - James W. Canary
- Department of Chemistry, New York University, 31 Washington Place, New York NY, 10003‐6688 (USA)
| | - Ryan Pennell
- Cancer Institute, New York University School of Medicine, 550 First Avenue, New York, NY 10016 (USA)
| | - Leonard F. Liebes
- Cancer Institute, New York University School of Medicine, 550 First Avenue, New York, NY 10016 (USA)
| | - Marcus Weck
- Molecular Design Institute, Department of Chemistry, New York University, 31 Washington Place, New York, NY 10003‐6688 (USA), Fax: (+1) 2129954895
- Department of Chemistry, New York University, 31 Washington Place, New York NY, 10003‐6688 (USA)
| |
Collapse
|
29
|
Ornelas C, Pennell R, Liebes LF, Weck M. Construction of a Well-Defined Multifunctional Dendrimer for Theranostics. Org Lett 2011; 13:976-9. [DOI: 10.1021/ol103019z] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Cátia Ornelas
- Molecular Design Institute and Department of Chemistry, New York University, 31 Washington Place, New York, New York 10003, United States, and Cancer Institute, New York University School of Medicine, Tisch Hospital, 550 First Avenue, New York, New York 10016, United States
| | - Ryan Pennell
- Molecular Design Institute and Department of Chemistry, New York University, 31 Washington Place, New York, New York 10003, United States, and Cancer Institute, New York University School of Medicine, Tisch Hospital, 550 First Avenue, New York, New York 10016, United States
| | - Leonard F. Liebes
- Molecular Design Institute and Department of Chemistry, New York University, 31 Washington Place, New York, New York 10003, United States, and Cancer Institute, New York University School of Medicine, Tisch Hospital, 550 First Avenue, New York, New York 10016, United States
| | - Marcus Weck
- Molecular Design Institute and Department of Chemistry, New York University, 31 Washington Place, New York, New York 10003, United States, and Cancer Institute, New York University School of Medicine, Tisch Hospital, 550 First Avenue, New York, New York 10016, United States
| |
Collapse
|
30
|
Cheng Y, Zhao L, Li Y, Xu T. Design of biocompatible dendrimers for cancer diagnosis and therapy: current status and future perspectives. Chem Soc Rev 2011; 40:2673-703. [PMID: 21286593 DOI: 10.1039/c0cs00097c] [Citation(s) in RCA: 358] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
In the past decade, nanomedicine with its promise of improved therapy and diagnostics has revolutionized conventional health care and medical technology. Dendrimers and dendrimer-based therapeutics are outstanding candidates in this exciting field as more and more biological systems have benefited from these starburst molecules. Anticancer agents can be either encapsulated in or conjugated to dendrimer and be delivered to the tumour via enhanced permeability and retention (EPR) effect of the nanoparticle and/or with the help of a targeting moiety such as antibody, peptides, vitamins, and hormones. Imaging agents including MRI contrast agents, radionuclide probes, computed tomography contrast agents, and fluorescent dyes are combined with the multifunctional nanomedicine for targeted therapy with simultaneous cancer diagnosis. However, an important question reported with dendrimer-based therapeutics as well as other nanomedicines to date is the long-term viability and biocompatibility of the nanotherapeutics. This critical review focuses on the design of biocompatible dendrimers for cancer diagnosis and therapy. The biocompatibility aspects of dendrimers such as nanotoxicity, long-term circulation, and degradation are discussed. The construction of novel dendrimers with biocompatible components, and the surface modification of commercially available dendrimers by PEGylation, acetylation, glycosylation, and amino acid functionalization have been proposed as available strategies to solve the safety problem of dendrimer-based nanotherapeutics. Also, exciting opportunities and challenges on the development of dendrimer-based nanoplatforms for targeted cancer diagnosis and therapy are reviewed (404 references).
Collapse
Affiliation(s)
- Yiyun Cheng
- School of Life Sciences, East China Normal University, Shanghai, 200062, People's Republic of China.
| | | | | | | |
Collapse
|
31
|
Akers WJ, Kim C, Berezin M, Guo K, Fuhrhop R, Lanza GM, Fischer GM, Daltrozzo E, Zumbusch A, Cai X, Wang LV, Achilefu S. Noninvasive photoacoustic and fluorescence sentinel lymph node identification using dye-loaded perfluorocarbon nanoparticles. ACS NANO 2011; 5:173-82. [PMID: 21171567 PMCID: PMC3026895 DOI: 10.1021/nn102274q] [Citation(s) in RCA: 97] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
The contrast mechanisms used for photoacoustic tomography (PAT) and fluorescence imaging differ in subtle, but significant, ways. The design of contrast agents for each or both modalities requires an understanding of the spectral characteristics as well as intra- and intermolecular interactions that occur during formulation. We found that fluorescence quenching that occurs in the formulation of near-infrared (NIR) fluorescent dyes in nanoparticles results in enhanced contrast for PAT. The ability of the new PAT method to utilize strongly absorbing chromophores for signal generation allowed us to convert a highly fluorescent dye into an exceptionally high PA contrast material. Spectroscopic characterization of the developed NIR dye-loaded perfluorocarbon-based nanoparticles for combined fluorescence and PA imaging revealed distinct dye-dependent photophysical behavior. We demonstrate that the enhanced contrast allows detection of regional lymph nodes of rats in vivo with time-domain optical and photoacoustic imaging methods. The results further show that the use of fluorescence lifetime imaging, which is less dependent on fluorescence intensity, provides a strategic approach to bridge the disparate contrast reporting mechanisms of fluorescence and PA imaging methods.
Collapse
Affiliation(s)
- Walter J. Akers
- Department of Radiology, Washington University School of Medicine, 4525 Scott Avenue, Saint Louis, MO 63108 (USA)
| | - Chulhong Kim
- Department of Biomedical Engineering, Washington University, One Brookings Drive, St. Louis, MO 63130 (USA)
| | - Mikhail Berezin
- Department of Radiology, Washington University School of Medicine, 4525 Scott Avenue, Saint Louis, MO 63108 (USA)
| | - Kevin Guo
- Department of Radiology, Washington University School of Medicine, 4525 Scott Avenue, Saint Louis, MO 63108 (USA)
| | - Ralph Fuhrhop
- C-TRAIN and Division of Cardiology, Washington University School of Medicine, 4320 Forest Park Avenue, Saint Louis, MO 63108 (USA)
| | - Gregory M. Lanza
- C-TRAIN and Division of Cardiology, Washington University School of Medicine, 4320 Forest Park Avenue, Saint Louis, MO 63108 (USA)
| | - Georg M. Fischer
- Department of Biophysics, Washington University School of Medicine, 4525 Scott Avenue, Saint Louis, MO 63108 (USA)
| | - Ewald Daltrozzo
- Department of Biophysics, Washington University School of Medicine, 4525 Scott Avenue, Saint Louis, MO 63108 (USA)
| | - Andreas Zumbusch
- Department of Biophysics, Washington University School of Medicine, 4525 Scott Avenue, Saint Louis, MO 63108 (USA)
| | - Xin Cai
- Department of Biomedical Engineering, Washington University, One Brookings Drive, St. Louis, MO 63130 (USA)
| | - Lihong V. Wang
- Department of Biomedical Engineering, Washington University, One Brookings Drive, St. Louis, MO 63130 (USA)
- Address correspondence to, Prof. S. Achilefu: , Prof. L. V. Wang:
| | - Samuel Achilefu
- Department of Radiology, Washington University School of Medicine, 4525 Scott Avenue, Saint Louis, MO 63108 (USA)
- Department of Biophysics, Washington University School of Medicine, 4525 Scott Avenue, Saint Louis, MO 63108 (USA)
- Address correspondence to, Prof. S. Achilefu: , Prof. L. V. Wang:
| |
Collapse
|
32
|
|
33
|
Akers WJ, Zhang Z, Berezin M, Ye Y, Agee A, Guo K, Fuhrhop RW, Wickline SA, Lanza GM, Achilefu S. Targeting of alpha(nu)beta(3)-integrins expressed on tumor tissue and neovasculature using fluorescent small molecules and nanoparticles. Nanomedicine (Lond) 2010; 5:715-26. [PMID: 20662643 DOI: 10.2217/nnm.10.38] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
AIM Receptor-specific small molecules and nanoparticles are widely used in molecular imaging of tumors. Although some studies have described the relative strengths and weaknesses of the two approaches, reports of a direct comparison and analysis of the two strategies are lacking. Herein, we compared the tumor-targeting characteristics of a small near-infrared fluorescent compound (cypate-peptide conjugate) and relatively large perfluorocarbon-based nanoparticles (250 nm diameter) for imaging alpha(nu)beta(3)-integrin receptor expression in tumors. MATERIALS & METHODS Near-infrared fluorescent small molecules and nanoparticles were administered to living mice bearing subcutaneous or intradermal syngeneic tumors and imaged with whole-body and high-resolution optical imaging systems. RESULTS The nanoparticles, designed for vascular constraint, remained within the tumor vasculature while the small integrin-avid ligands diffused into the tissue to target integrin expression on tumor and endothelial cells. Targeted small-molecule and nanoparticle contrast agents preferentially accumulated in tumor tissue with tumor-to-muscle ratios of 8 and 7, respectively, compared with 3 for nontargeted nanoparticles. CONCLUSION Fluorescent small molecular probes demonstrate greater overall early tumor contrast and rapid visualization of tumors, but the vascular-constrained nanoparticles are more selective for detecting cancer-induced angiogenesis. A combination of both imaging agents provides a strategy to image and quantify integrin expression in tumor tissue and tumor-induced neovascular systems.
Collapse
Affiliation(s)
- Walter J Akers
- Department of Radiology, Washington University School of Medicine, 4525 Scott Avenue, St. Louis, MO 63110, USA
| | | | | | | | | | | | | | | | | | | |
Collapse
|
34
|
Liu Y, Solomon M, Achilefu S. Perspectives and potential applications of nanomedicine in breast and prostate cancer. Med Res Rev 2010; 33:3-32. [PMID: 23239045 DOI: 10.1002/med.20233] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Nanomedicine is a branch of nanotechnology that includes the development of nanostructures and nanoanalytical systems for various medical applications. Among these applications, utilization of nanotechnology in oncology has captivated the attention of many research endeavors in recent years. The rapid development of nano-oncology raises new possibilities in cancer diagnosis and treatment. It also holds great promise for realization of point-of-care, theranostics, and personalized medicine. In this article, we review advances in nano-oncology, with an emphasis on breast and prostate cancer because these organs are amenable to the translation of nanomedicine from small animals to humans. As new drugs are developed, the incorporation of nanotechnology approaches into medicinal research becomes critical. Diverse aspects of nano-oncology are discussed, including nanocarriers, targeting strategies, nanodevices, as well as nanomedical diagnostics, therapeutics, and safety. The review concludes by identifying some limitations and future perspectives of nano-oncology in breast and prostate cancer management.
Collapse
Affiliation(s)
- Yang Liu
- Department of Radiology, Washington University School of Medicine, St. Louis, Missouri, USA
| | | | | |
Collapse
|
35
|
Sankaranarayanan J, Mahmoud EA, Kim G, Morachis JM, Almutairi A. Multiresponse strategies to modulate burst degradation and release from nanoparticles. ACS NANO 2010; 4:5930-6. [PMID: 20828178 PMCID: PMC2964039 DOI: 10.1021/nn100968e] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2010] [Accepted: 09/03/2010] [Indexed: 05/26/2023]
Abstract
Logic gate nanoparticles, where two chemical transformations take place one after the other, were successfully formulated from a newly synthesized random co-polymer. This polymer, poly([2,2'-(propane-2,2-diylbis(oxy))bis(ethane-2,1-diyl) diacrylate ]-co-[hexane-1,6-diyl diacrylate]-4,4' trimethylene dipiperidine), (poly-β-aminoester ketal-2) contains two pH responsive moieties within its backbone. As nanoparticles they function akin to an AND logic gate. The β-aminoester backbone moiety provides a pH triggered solubility switch, only when this switch is "ON" does the ketal moiety also turn "ON" to undergo rapid acid catalyzed hydrolysis. These AND logic gate polymeric nanoparticles were prepared using an oil in water emulsion method. Their degradation in the pH range of 7.4-5 was monitored by dynamic light scattering and showed excellent stability at pH 7.4 and rapid degradation at pH 5. Our results indicate that the prepared logic gate nanoparticles may prove valuable in delivering therapeutics and diagnostics to cells and diseased tissue.
Collapse
Affiliation(s)
| | | | | | | | - Adah Almutairi
- Pharmaceutical Sciences
- Materials Science and Engineering
| |
Collapse
|
36
|
Shen Y, Zhou Z, Sui M, Tang J, Xu P, Kirk EAV, Murdoch WJ, Fan M, Radosz M. Charge-reversal polyamidoamine dendrimer for cascade nuclear drug delivery. Nanomedicine (Lond) 2010; 5:1205-17. [DOI: 10.2217/nnm.10.86] [Citation(s) in RCA: 92] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Aims: Polyamidoamine (PAMAM) dendrimers with primary amine termini have been extensively explored as drug and gene carriers owing to their unique properties, but their amine-carried cationic charges cause nonspecific cellular uptakes, systemic toxicity and other severe problems in in vivo applications. Method: In this article, we report a charge-reversal approach that latently deactivates PAMAM’s primary amines to negatively charged acid-labile amides in order to inhibit its nonspecific interaction with cells, but regenerates the active PAMAM once in acidic environments. Results: A cascade cancer cell nuclear drug delivery was achieved using the latently amidized PAMAM as the carrier conjugated with folic acid as the targeting group and a DNA-toxin drug camptothecin. The conjugate had low nonspecific interactions with cells, but easily entered cancer cells overexpressing folate receptors via receptor-mediated endocytosis. Subsequently, the endocytosed conjugate was transferred to acidic lysosomes, wherein the active PAMAM carrier was regenerated, escaped from the lysosome and then entered the nucleus for drug release. Conclusion: This reversible deactivation/activation makes PAMAM dendrimers useful nanocarriers for in vivo cancer cell nuclear-targeted drug delivery.
Collapse
Affiliation(s)
| | - Zhuxian Zhou
- Department of Chemical & Petroleum Engineering, University of Wyoming, Laramie, WY, 82071, USA
| | - Meihua Sui
- Center for Bionanoengineering & Department of Chemical & Biological Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Jianbin Tang
- Center for Bionanoengineering & Department of Chemical & Biological Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Peisheng Xu
- Department of Chemical & Petroleum Engineering, University of Wyoming, Laramie, WY, 82071, USA
- College of Pharmacy, University of South Carolina, Columbia, SC 29208, USA
| | - Edward A Van Kirk
- Department of Animal Science, University of Wyoming, Laramie, WY, 82071, USA
| | - William J Murdoch
- Department of Animal Science, University of Wyoming, Laramie, WY, 82071, USA
| | - Maohong Fan
- Department of Chemical & Petroleum Engineering, University of Wyoming, Laramie, WY, 82071, USA
| | - Maciej Radosz
- Department of Chemical & Petroleum Engineering, University of Wyoming, Laramie, WY, 82071, USA
| |
Collapse
|
37
|
Affiliation(s)
- Mikhail Y. Berezin
- Department of Radiology, Washington University School of Medicine, 4525 Scott Ave, St. Louis, USA, Tel. 314-747-0701, 314-362-8599, fax 314-747-5191
| | - Samuel Achilefu
- Department of Radiology, Washington University School of Medicine, 4525 Scott Ave, St. Louis, USA, Tel. 314-747-0701, 314-362-8599, fax 314-747-5191
| |
Collapse
|
38
|
Tam JM, Tam JO, Murthy A, Ingram DR, Ma LL, Travis K, Johnston KP, Sokolov KV. Controlled assembly of biodegradable plasmonic nanoclusters for near-infrared imaging and therapeutic applications. ACS NANO 2010; 4:2178-84. [PMID: 20373747 PMCID: PMC2862619 DOI: 10.1021/nn9015746] [Citation(s) in RCA: 99] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Metal nanoparticles with surface plasmon resonance (SPR) in the near-infrared region (NIR) are of great interest for imaging and therapy. Presently, gold nanoparticles with NIR absorbance are typically larger than 50 nm, above the threshold size of approximately 5 nm required for efficient renal clearance. As these nanoparticles are not biodegradable, concerns about long-term toxicity have restricted their translation into the clinic. Here, we address this problem by developing a flexible platform for the kinetically controlled assembly of sub-5 nm ligand-coated gold particles to produce metal/polymer biodegradable nanoclusters smaller than 100 nm with strong NIR absorbance for multimodal application. A key novel feature of the proposed synthesis is the use of weakly adsorbing biodegradable polymers that allows tight control of nanocluster size and, in addition, results in nanoclusters with unprecedented metal loadings and thus optical functionality. Over time, the biodegradable polymer stabilizer degrades under physiological conditions that leads to disassembly of the nanoclusters into sub-5 nm primary gold particles which are favorable for efficient body clearance. This synthesis of polymer/inorganic nanoclusters combines the imaging contrast and therapeutic capabilities afforded by the NIR-active nanoparticle assembly with the biodegradability of a polymer stabilizer.
Collapse
Affiliation(s)
- Jasmine M. Tam
- Department of Chemical Engineering, University of Texas at Austin, Austin, Texas 78712
| | - Justina O. Tam
- Department of Biomedical Engineering, University of Texas at Austin, Austin, Texas 78712
| | - Avinash Murthy
- Department of Chemical Engineering, University of Texas at Austin, Austin, Texas 78712
| | - Davis R. Ingram
- Department of Chemical Engineering, University of Texas at Austin, Austin, Texas 78712
| | - Li Leo Ma
- Department of Chemical Engineering, University of Texas at Austin, Austin, Texas 78712
| | - Kort Travis
- Department of Physics, University of Texas at Austin, Austin, Texas 78712
| | - Keith P. Johnston
- Department of Chemical Engineering, University of Texas at Austin, Austin, Texas 78712
| | - Konstantin V. Sokolov
- Department of Biomedical Engineering, University of Texas at Austin, Austin, Texas 78712
- Department of Imaging Physics, M.D. Anderson Cancer Center, Houston, Texas 77030
| |
Collapse
|
39
|
Sun G, Berezin MY, Fan J, Lee H, Ma J, Zhang K, Wooley KL, Achilefu S. Bright fluorescent nanoparticles for developing potential optical imaging contrast agents. NANOSCALE 2010; 2:548-58. [PMID: 20644758 DOI: 10.1039/b9nr00304e] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Fluorescent cross-linked nanoparticles with variable fluorophore loading amounts, locations, and particle sizes were synthesized from sequential one-pot functionalization/cross-linking of block copolymer micelles with amine-terminated dye and cross-linker molecules, via reductive amination and amidation. The fluorescence quantum yield and brightness of these nanoparticles were evaluated by steady-state and dynamic fluorescence methods. The results demonstrate that the quantum yield and brightness of the fluorescent nanoparticles correlated directly with the number of dyes/nanoparticle and the nanoparticle size. A strategy to increase the fluorescence brightness of nanoparticles with fluorescein and near-infrared dyes is proposed.
Collapse
Affiliation(s)
- Guorong Sun
- Department of Chemistry, Washington University in Saint Louis, Saint Louis, MO 63130, USA
| | | | | | | | | | | | | | | |
Collapse
|
40
|
Berezin MY, Akers WJ, Guo K, Fischer GM, Daltrozzo E, Zumbusch A, Achilefu S. Long fluorescence lifetime molecular probes based on near infrared pyrrolopyrrole cyanine fluorophores for in vivo imaging. Biophys J 2010; 97:L22-4. [PMID: 19883579 DOI: 10.1016/j.bpj.2009.08.022] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2009] [Revised: 08/14/2009] [Accepted: 08/17/2009] [Indexed: 11/26/2022] Open
Abstract
Fluorescence lifetime (FLT) properties of organic molecules provide a new reporting strategy for molecular imaging in the near infrared (NIR) spectral region. Unfortunately, most of the NIR fluorescent dyes have short FLT typically clustered below 1.5 ns. In this study, we demonstrate that a new class of NIR fluorescent dyes, pyrrolopyrrole cyanine dyes, have exceptionally long FLTs ranging from 3 to 4 ns, both in vitro (dimethyl sulfoxide and albumin/water solutions) and in vivo (mice). These results provide a new window for imaging molecular processes, rejecting backscattered light and autofluorescence, and multiplexing imaging information with conventional NIR fluorescent dyes that absorb and emit light at similar wavelengths.
Collapse
Affiliation(s)
- Mikhail Y Berezin
- Department of Radiology, Washington University School of Medicine, St. Louis, Missouri, USA
| | | | | | | | | | | | | |
Collapse
|
41
|
Caminade AM, Hameau A, Majoral JP. Multicharged and/or water-soluble fluorescent dendrimers: properties and uses. Chemistry 2010; 15:9270-85. [PMID: 19718727 DOI: 10.1002/chem.200901597] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The fluorescence of water-soluble dendritic compounds can be due to the whole structure or to fluorophores used as core, as peripheral groups, or as branches. Highly sophisticated precisely defined structures with other functional groups usable for material or biological purposes have been synthesised, but many recent examples have shown that dendrimers can be used as versatile platforms for statistically linking various types of functional groups.
Collapse
Affiliation(s)
- Anne-Marie Caminade
- Laboratoire de Chimie de Coordination (LCC) CNRS, 205 route de Narbonne, 31077 Toulouse, France.
| | | | | |
Collapse
|
42
|
Zhang Z, Fan J, Cheney PP, Berezin MY, Edwards WB, Akers WJ, Shen D, Liang K, Culver JP, Achilefu S. Activatable molecular systems using homologous near-infrared fluorescent probes for monitoring enzyme activities in vitro, in cellulo, and in vivo. Mol Pharm 2009; 6:416-27. [PMID: 19718795 DOI: 10.1021/mp800264k] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We have developed a generic approach to determine enzyme activities in vitro and monitor their functional status in vivo. Specifically, a method to generate donor (CbOH)-acceptor (Me2NCp) near-infrared (NIR) fluorescent dye pairs for preparing enzyme activatable molecular systems were developed based on the structural template of heptamethine cyanine dyes. Using caspase-3 as a model enzyme, we prepared two new caspase-3 sensitive compounds with high fluorescence quenching efficiency: Me2NCp-DEVD-K(CbOH)-OH (4) and AcGK(Me2NCp)-DEVD-APK(CbOH)-NH2 (5). The mechanism of quenching was based on combined effects of direct (classical) and reverse fluorescence resonance energy transfer (FRET). Caspase-3 cleavage of the scissile DEVD amide bond regenerated the NIR fluorescence of both donor and acceptor dyes. While both compounds were cleaved by caspase-3, substrate 5 was cleaved more readily than 4, yielding k(cat) and K(M), values of 1.02 +/- 0.06 s(-1) and 15 +/- 3 microM, respectively. Treatment of A549 tumor cells with paclitaxel resulted in > 2-fold increase in the fluorescence intensity by NIR confocal microscopy, suggesting the activation of pro-caspase-3 to caspase-3. A similar trend was observed in a mouse model, where the fluorescence intensity was nearly twice the value in caspase-3-rich tissue relative to the control. These results demonstrate the use of the same NIR activatable molecular systems for monitoring the activities of enzymes across a wide spatial scale ranging from in vitro kinetics measurements to in cellulo and in vivo localization of caspase-3 activation. The NIR activatable molecular probes provide an effective strategy to screen new drugs in vitro and monitor treatment response in living organisms.
Collapse
Affiliation(s)
- Zongren Zhang
- Department of Radiology, Washington University School of Medicine, 4525 Scott Avenue, St. Louis, Missouri 63110, USA
| | | | | | | | | | | | | | | | | | | |
Collapse
|
43
|
Ma X, Tang J, Shen Y, Fan M, Tang H, Radosz M. Facile Synthesis of Polyester Dendrimers from Sequential Click Coupling of Asymmetrical Monomers. J Am Chem Soc 2009; 131:14795-803. [DOI: 10.1021/ja9037406] [Citation(s) in RCA: 94] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xinpeng Ma
- Center for Bionanoengineering and State Key Laboratory of Chemical Engineering, Department of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China 310027, and Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071
| | - Jianbin Tang
- Center for Bionanoengineering and State Key Laboratory of Chemical Engineering, Department of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China 310027, and Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071
| | - Youqing Shen
- Center for Bionanoengineering and State Key Laboratory of Chemical Engineering, Department of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China 310027, and Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071
| | - Maohong Fan
- Center for Bionanoengineering and State Key Laboratory of Chemical Engineering, Department of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China 310027, and Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071
| | - Huadong Tang
- Center for Bionanoengineering and State Key Laboratory of Chemical Engineering, Department of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China 310027, and Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071
| | - Maciej Radosz
- Center for Bionanoengineering and State Key Laboratory of Chemical Engineering, Department of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China 310027, and Department of Chemical and Petroleum Engineering, University of Wyoming, Laramie, Wyoming 82071
| |
Collapse
|
44
|
Texier I, Goutayer M, Da Silva A, Guyon L, Djaker N, Josserand V, Neumann E, Bibette J, Vinet F. Cyanine-loaded lipid nanoparticles for improved in vivo fluorescence imaging. JOURNAL OF BIOMEDICAL OPTICS 2009; 14:054005. [PMID: 19895107 DOI: 10.1117/1.3213606] [Citation(s) in RCA: 93] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Fluorescence is a very promising radioactive-free technique for functional imaging in small animals and, in the future, in humans. However, most commercial near-infrared dyes display poor optical properties, such as low fluorescence quantum yields and short fluorescence lifetimes. In this paper, we explore whether the encapsulation of infrared cyanine dyes within the core of lipid nanoparticles (LNPs) could improve their optical properties. Lipophilic dialkylcarbocyanines DiD and DiR are loaded very efficiently in 30-35-nm-diam lipid droplets stabilized in water by surfactants. No significant fluorescence autoquenching is observed up to 53 dyes per particle. Encapsulated in LNP, which are stable for more than one year at room temperature in HBS buffer (HEPES 0.02 M, EDTA 0.01 M, pH 5.5), DiD and DiR display far improved fluorescence quantum yields Phi (respectively, 0.38 and 0.25) and longer fluorescence lifetimes tau (respectively, 1.8 and 1.1 ns) in comparison to their hydrophilic counterparts Cy5 (Phi=0.28, tau=1.0 ns) and Cy7 (Phi=0.13, tau=0.57 ns). Moreover, dye-loaded LNPs are able to accumulate passively in various subcutaneous tumors in mice, thanks to the enhanced permeability and retention effect. These new fluorescent nanoparticles therefore appear as very promising labels for in vivo fluorescence imaging.
Collapse
Affiliation(s)
- Isabelle Texier
- Commissariat a l'Energie Atomique, LETI-DTBS, 17 rue des Martyrs, Grenoble Cedex, 38054, France.
| | | | | | | | | | | | | | | | | |
Collapse
|
45
|
Welsh D, Jones S, Smith D. “On-Off” Multivalent Recognition: Degradable Dendrons for Temporary High-Affinity DNA Binding. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200900401] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
|
46
|
Welsh D, Jones S, Smith D. “On-Off” Multivalent Recognition: Degradable Dendrons for Temporary High-Affinity DNA Binding. Angew Chem Int Ed Engl 2009; 48:4047-51. [DOI: 10.1002/anie.200900401] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|