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Cooley MB, Wegierak D, Exner AA. Using imaging modalities to predict nanoparticle distribution and treatment efficacy in solid tumors: The growing role of ultrasound. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2024; 16:e1957. [PMID: 38558290 PMCID: PMC11006412 DOI: 10.1002/wnan.1957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 12/22/2023] [Accepted: 02/27/2024] [Indexed: 04/04/2024]
Abstract
Nanomedicine in oncology has not had the success in clinical impact that was anticipated in the early stages of the field's development. Ideally, nanomedicines selectively accumulate in tumor tissue and reduce systemic side effects compared to traditional chemotherapeutics. However, this has been more successful in preclinical animal models than in humans. The causes of this failure to translate may be related to the intra- and inter-patient heterogeneity of the tumor microenvironment. Predicting whether a patient will respond positively to treatment prior to its initiation, through evaluation of characteristics like nanoparticle extravasation and retention potential in the tumor, may be a way to improve nanomedicine success rate. While there are many potential strategies to accomplish this, prediction and patient stratification via noninvasive medical imaging may be the most efficient and specific strategy. There have been some preclinical and clinical advances in this area using MRI, CT, PET, and other modalities. An alternative approach that has not been studied as extensively is biomedical ultrasound, including techniques such as multiparametric contrast-enhanced ultrasound (mpCEUS), doppler, elastography, and super-resolution processing. Ultrasound is safe, inexpensive, noninvasive, and capable of imaging the entire tumor with high temporal and spatial resolution. In this work, we summarize the in vivo imaging tools that have been used to predict nanoparticle distribution and treatment efficacy in oncology. We emphasize ultrasound imaging and the recent developments in the field concerning CEUS. The successful implementation of an imaging strategy for prediction of nanoparticle accumulation in tumors could lead to increased clinical translation of nanomedicines, and subsequently, improved patient outcomes. This article is categorized under: Diagnostic Tools In Vivo Nanodiagnostics and Imaging Therapeutic Approaches and Drug Discovery Nanomedicine for Oncologic Disease Therapeutic Approaches and Drug Discovery Emerging Technologies.
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Affiliation(s)
- Michaela B Cooley
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, Ohio, USA
| | - Dana Wegierak
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, Ohio, USA
| | - Agata A Exner
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, Ohio, USA
- Department of Radiology, Case Western Reserve University and University Hospitals of Cleveland, Cleveland, Ohio, USA
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2
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Rahimi MN, Corlett A, Van Zuylekom J, Sani MA, Blyth B, Thompson P, Roselt PD, Haskali MB. Precision peptide theranostics: developing N- to C-terminus optimized theranostics targeting cholecystokinin-2 receptor. Theranostics 2024; 14:1815-1828. [PMID: 38505611 PMCID: PMC10945332 DOI: 10.7150/thno.89701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 01/10/2024] [Indexed: 03/21/2024] Open
Abstract
Peptides are ideal for theranostic development as they afford rapid target accumulation, fast clearance from background tissue, and exhibit good tissue penetration. Previously, we developed a novel series of peptides that presented discreet folding propensity leading to an optimal candidate [68Ga]Ga-DOTA-GA1 ([D-Glu]6-Ala-Tyr-NMeGly-Trp-NMeNle-Asp-Nal-NH2) with 50 pM binding affinity against cholecystokinin-2 receptors (CCK2R). However, we were confronted with challenges of unfavorably high renal uptake. Methods: A structure activity relationship study was undertaken of the lead theranostic candidate. Prudent structural modifications were made to the peptide scaffold to evaluate the contributions of specific N-terminal residues to the overall biological activity. Optimal candidates were then evaluated in nude mice bearing transfected A431-CCK2 tumors, and their biodistribution was quantitated ex vivo. Results: We identified and confirmed that D-Glu3 to D-Ala3 substitution produced 2 optimal candidates, [68Ga]Ga-DOTA-GA12 and [68Ga]Ga-DOTA-GA13. These radiopeptides presented with high target/background ratios, enhanced tumor retention, excellent metabolic stability in plasma and mice organ homogenates, and a 4-fold reduction in renal uptake, significantly outperforming their non-alanine counterparts. Conclusions: Our study identified novel radiopharmaceutical candidates that target the CCK2R. Their high tumor uptake and reduced renal accumulation warrant clinical translation.
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Affiliation(s)
- Marwa N. Rahimi
- Department of Radiopharmaceutical Sciences, Cancer Imaging, The Peter MacCallum Cancer Centre, Victoria 3000, Australia
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Victoria 3010, Australia
| | - Alicia Corlett
- Cancer Imaging, Peter MacCallum Cancer Centre, Melbourne, Victoria 3000, Australia
| | - Jessica Van Zuylekom
- Models of Cancer Translational Research Centre, The Peter MacCallum Cancer Centre, Victoria 3000, Australia
| | - Marc Antoine Sani
- The Bio21 Institute, School of Chemistry, The University of Melbourne, Melbourne, Victoria, 3010 Australia
| | - Benjamin Blyth
- Models of Cancer Translational Research Centre, The Peter MacCallum Cancer Centre, Victoria 3000, Australia
| | - Philip Thompson
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Faculty of Pharmacy and Pharmaceutical Sciences, Monash University (Parkville Campus), Parkville, Victoria 3052, Australia
| | - Peter D. Roselt
- Department of Radiopharmaceutical Sciences, Cancer Imaging, The Peter MacCallum Cancer Centre, Victoria 3000, Australia
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Victoria 3010, Australia
| | - Mohammad B. Haskali
- Department of Radiopharmaceutical Sciences, Cancer Imaging, The Peter MacCallum Cancer Centre, Victoria 3000, Australia
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Victoria 3010, Australia
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3
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Maschio R, Buonsanti F, Crivellin F, Ferretti F, Lattuada L, Maisano F, Orio L, Pizzuto L, Campanella R, Clouet A, Cavallotti C, Giovenzana GB. Improved synthesis of DA364, an NIR fluorescence RGD probe targeting α vβ 3 integrin. Org Biomol Chem 2023; 21:8584-8592. [PMID: 37855098 DOI: 10.1039/d3ob01206a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2023]
Abstract
Optical imaging (OI) is gaining increasing attention in medicine as a non-invasive diagnostic imaging technology and as a useful tool for image-guided surgery. OI exploits the light emitted in the near-infrared region by fluorescent molecules able to penetrate living tissues. Cyanines are an important class of fluorescent molecules and by their conjugation to peptides it is possible to achieve optical imaging of tumours by selective targeting. We report here the improvements obtained in the synthesis of DA364, a small fluorescent probe (1.5 kDa) prepared by conjugation of pentamethine cyanine Cy5.5 to an RGD peptidomimetic, which can target tumour cells overexpressing integrin αvβ3 receptors.
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Affiliation(s)
- Rachele Maschio
- Dipartimento di Scienze del Farmaco, Università del Piemonte Orientale, Largo Donegani 2/3, 28100 Novara, Italy.
| | - Federica Buonsanti
- Bracco Imaging Spa, Bracco Research Centre, Via Ribes 5, 10010 Colleretto Giacosa, TO, Italy.
| | - Federico Crivellin
- Bracco Imaging Spa, Bracco Research Centre, Via Ribes 5, 10010 Colleretto Giacosa, TO, Italy.
| | - Fulvio Ferretti
- Bracco Imaging Spa, Bracco Research Centre, Via Ribes 5, 10010 Colleretto Giacosa, TO, Italy.
| | - Luciano Lattuada
- Bracco Imaging Spa, Bracco Research Centre, Via Ribes 5, 10010 Colleretto Giacosa, TO, Italy.
| | - Federico Maisano
- Bracco Imaging Spa, Bracco Research Centre, Via Ribes 5, 10010 Colleretto Giacosa, TO, Italy.
| | - Laura Orio
- Bracco Imaging Spa, Bracco Research Centre, Via Ribes 5, 10010 Colleretto Giacosa, TO, Italy.
| | - Lorena Pizzuto
- Bracco Imaging Spa, Bracco Research Centre, Via Ribes 5, 10010 Colleretto Giacosa, TO, Italy.
| | - Raphael Campanella
- Bracco Suisse SA, Route de la Galaise 31, 1228 Plan le Ouates, Switzerland
| | - Anthony Clouet
- Bracco Suisse SA, Route de la Galaise 31, 1228 Plan le Ouates, Switzerland
| | | | - Giovanni B Giovenzana
- Dipartimento di Scienze del Farmaco, Università del Piemonte Orientale, Largo Donegani 2/3, 28100 Novara, Italy.
- CAGE Chemicals Srl, Via Bovio 6, 28100 Novara, Italy
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4
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Zhou S, Fang X, Lv J, Yang Y, Zeng Y, Liu Y, Wei W, Huang G, Zhang B, Wu C. Site-Specific Modification of Single Domain Antibodies by Enzyme-Immobilized Magnetic Beads. Bioconjug Chem 2023; 34:1914-1922. [PMID: 37804224 DOI: 10.1021/acs.bioconjchem.3c00423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/09/2023]
Abstract
Nanobodies as imaging agents and drug conjugates have shown great potential for cancer diagnostics and therapeutics. However, site-specific modification of a nanobody with microbial transglutaminase (mTGase) encounters problems in protein separation and purification. Here, we describe a facile yet reliable strategy of immobilizing mTGase onto magnetic beads for site-specific nanobody modification. The mTGase immobilized on magnetic beads (MB-mTGase) exhibits catalytic activity nearly equivalent to that of the free mTGase, with good reusability and universality. Magnetic separation simplifies the protein purification step and reduces the loss of nanobody bioconjugates more effectively than size exclusion chromatography. Using MB-mTGase, we demonstrate site-specific conjugation of nanobodies with fluorescent dyes and polyethylene glycol molecules, enabling targeted immunofluorescence imaging and improved circulation dynamics and tumor accumulation in vivo. The combined advantages of MB-mTGase method, including high conjugation efficiency, quick purification, less protein loss, and recycling use, are promising for site-specific nanobody functionalization and biomedical applications.
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Affiliation(s)
- Siyu Zhou
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen 518055, Guangdong, China
| | - Xiaofeng Fang
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen 518055, Guangdong, China
| | - Jiahui Lv
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen 518055, Guangdong, China
| | - Yicheng Yang
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen 518055, Guangdong, China
| | - Yiqi Zeng
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen 518055, Guangdong, China
| | - Ying Liu
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen 518055, Guangdong, China
| | - Weijun Wei
- Department of Nuclear Medicine, Institute of Clinical Nuclear Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Gang Huang
- Department of Nuclear Medicine, Institute of Clinical Nuclear Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Bo Zhang
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen 518055, Guangdong, China
| | - Changfeng Wu
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen 518055, Guangdong, China
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5
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Shi X, Gao K, Zhang G, Zhang W, Yang X, Gao R. Signal Amplification Pretargeted PET/Fluorescence Imaging Based on Human Serum Albumin-Encapsulated GdF 3 Nanoparticles for Diagnosis of Ovarian Cancer. ACS Biomater Sci Eng 2022; 8:4956-4964. [PMID: 36218278 DOI: 10.1021/acsbiomaterials.2c00374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Different modal imaging techniques could be complementary in tumor diagnosis. Human serum albumin (HSA)-encapsulated GdF3 nanoparticles were developed as T1 magnetic resonance imaging (MRI) contrast agents. However, no significant T1 enhancement in the tumor site of the SKOV3 human ovarian cancer xenograft tumor model was observed within 3 h after injection of tetrazine-modified GdF3@HSA NPs through small-animal MRI. After intravenous injection of 18F (or Cy7)-labeled Reppe anhydride, pretargeted positron emission tomography (PET) (near-infrared (NIR) fluorescence) imaging was used to reveal the pharmacokinetics of GdF3@HSA NPs in the SKOV3 xenograft mouse model to locate the tumor. The probe based on Reppe anhydride achieved rapid ligation with tetrazine-modified GdF3@HSA nanoparticles (NPs), which accumulated in tumor through Reppe anhydride/tetrazine bioorthogonal chemistry. This pretargeting strategy enabled excellent tumor visualization and quantification at an early period after nanoparticle injection (3 h p.i.), while the MRI images with significant T1 enhancement could be obtained until 24 h after injection of Gd-based contrast agents only. In vivo pretargeted multimodal imaging based on the tetrazine/Reppe anhydride system using HSA-encapsulated GdF3 nanoparticles would be beneficial for amplification of the imaging signal in the disease site and enhancing diagnostic efficiency.
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Affiliation(s)
- Xudong Shi
- Key Laboratory of Human Disease Comparative Medicine, National Health Commission of China (NHC), Institute of Laboratory Animal Science, Peking Union Medicine College, Chinese Academy of Medical Sciences, No. 5 Panjiayuan Nanli, Chaoyang District, Beijing100021, China
| | - Kai Gao
- Key Laboratory of Human Disease Comparative Medicine, National Health Commission of China (NHC), Institute of Laboratory Animal Science, Peking Union Medicine College, Chinese Academy of Medical Sciences, No. 5 Panjiayuan Nanli, Chaoyang District, Beijing100021, China
| | - Guoxin Zhang
- Key Laboratory of Human Disease Comparative Medicine, National Health Commission of China (NHC), Institute of Laboratory Animal Science, Peking Union Medicine College, Chinese Academy of Medical Sciences, No. 5 Panjiayuan Nanli, Chaoyang District, Beijing100021, China
| | - Wenlong Zhang
- Key Laboratory of Human Disease Comparative Medicine, National Health Commission of China (NHC), Institute of Laboratory Animal Science, Peking Union Medicine College, Chinese Academy of Medical Sciences, No. 5 Panjiayuan Nanli, Chaoyang District, Beijing100021, China
| | - Xingjiu Yang
- Key Laboratory of Human Disease Comparative Medicine, National Health Commission of China (NHC), Institute of Laboratory Animal Science, Peking Union Medicine College, Chinese Academy of Medical Sciences, No. 5 Panjiayuan Nanli, Chaoyang District, Beijing100021, China
| | - Ran Gao
- Key Laboratory of Human Disease Comparative Medicine, National Health Commission of China (NHC), Institute of Laboratory Animal Science, Peking Union Medicine College, Chinese Academy of Medical Sciences, No. 5 Panjiayuan Nanli, Chaoyang District, Beijing100021, China
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6
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Robbins E, Mucha SG, Benkowska-Biernacka D, Nadolski K, Maldonado-Carmona N, Villandier N, Leroy-Lhez S, Matczyszyn K. Porphyrin-loaded acetylated lignin nanoparticles as a remarkable biomarker emitting in the first optical window. J PORPHYR PHTHALOCYA 2022. [DOI: 10.1142/s1088424622500377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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7
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Dual-Labelling Strategies for Nuclear and Fluorescence Molecular Imaging: Current Status and Future Perspectives. Pharmaceuticals (Basel) 2022; 15:ph15040432. [PMID: 35455430 PMCID: PMC9028399 DOI: 10.3390/ph15040432] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 03/27/2022] [Accepted: 03/28/2022] [Indexed: 12/13/2022] Open
Abstract
Molecular imaging offers the possibility to investigate biological and biochemical processes non-invasively and to obtain information on both anatomy and dysfunctions. Based on the data obtained, a fundamental understanding of various disease processes can be derived and treatment strategies can be planned. In this context, methods that combine several modalities in one probe are increasingly being used. Due to the comparably high sensitivity and provided complementary information, the combination of nuclear and optical probes has taken on a special significance. In this review article, dual-labelled systems for bimodal nuclear and optical imaging based on both modular ligands and nanomaterials are discussed. Particular attention is paid to radiometal-labelled molecules for single-photon emission computed tomography (SPECT) and positron emission tomography (PET) and metal complexes combined with fluorescent dyes for optical imaging. The clinical potential of such probes, especially for fluorescence-guided surgery, is assessed.
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8
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Schouw HM, Huisman LA, Janssen YF, Slart RHJA, Borra RJH, Willemsen ATM, Brouwers AH, van Dijl JM, Dierckx RA, van Dam GM, Szymanski W, Boersma HH, Kruijff S. Targeted optical fluorescence imaging: a meta-narrative review and future perspectives. Eur J Nucl Med Mol Imaging 2021; 48:4272-4292. [PMID: 34633509 PMCID: PMC8566445 DOI: 10.1007/s00259-021-05504-y] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 07/23/2021] [Indexed: 12/27/2022]
Abstract
Purpose The aim of this review is to give an overview of the current status of targeted optical fluorescence imaging in the field of oncology, cardiovascular, infectious and inflammatory diseases to further promote clinical translation. Methods A meta-narrative approach was taken to systematically describe the relevant literature. Consecutively, each field was assigned a developmental stage regarding the clinical implementation of optical fluorescence imaging. Results Optical fluorescence imaging is leaning towards clinical implementation in gastrointestinal and head and neck cancers, closely followed by pulmonary, neuro, breast and gynaecological oncology. In cardiovascular and infectious disease, optical imaging is in a less advanced/proof of concept stage. Conclusion Targeted optical fluorescence imaging is rapidly evolving and expanding into the clinic, especially in the field of oncology. However, the imaging modality still has to overcome some major challenges before it can be part of the standard of care in the clinic, such as the provision of pivotal trial data. Intensive multidisciplinary (pre-)clinical joined forces are essential to overcome the delivery of such compelling phase III registration trial data and subsequent regulatory approval and reimbursement hurdles to advance clinical implementation of targeted optical fluorescence imaging as part of standard practice. Supplementary Information The online version contains supplementary material available at 10.1007/s00259-021-05504-y.
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Affiliation(s)
- H M Schouw
- Department of Surgery, University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands
| | - L A Huisman
- Department of Surgery, University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands
| | - Y F Janssen
- Department of Surgery, University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands
| | - R H J A Slart
- Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands.,Department of Biomedical Photonic Imaging, Faculty of Science and Technology, University of Twente, Enschede, The Netherlands
| | - R J H Borra
- Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands.,Department of Radiology, University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands
| | - A T M Willemsen
- Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands
| | - A H Brouwers
- Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands
| | - J M van Dijl
- Department of Medical Microbiology, University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands
| | - R A Dierckx
- Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands.,Department of Diagnostic Sciences, Ghent University Faculty of Medicine and Health Sciences, Gent, Belgium
| | - G M van Dam
- Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands.,AxelaRx/TRACER Europe BV, Groningen, The Netherlands
| | - W Szymanski
- Department of Radiology, University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands
| | - H H Boersma
- Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands.,Department of Clinical Pharmacy and Pharmacology, University of Groningen, University Medical Centre of Groningen, Groningen, The Netherlands
| | - S Kruijff
- Department of Surgery, University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands. .,Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands.
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9
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Harris M, Ceulemans M, Verstraete C, Bloemen M, Manshian B, Soenen SJ, Himmelreich U, Verbiest T, De Borggraeve WM, Parac‐Vogt TN. Ultrasmall iron oxide nanoparticles functionalized with BODIPY derivatives as potential bimodal probes for MRI and optical imaging. NANO SELECT 2021. [DOI: 10.1002/nano.202000022] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Affiliation(s)
- Michael Harris
- Department of Chemistry KU Leuven Celestijnenlaan 200F, Box 2404 Leuven 3001 Belgium
| | - Matthias Ceulemans
- Department of Chemistry KU Leuven Celestijnenlaan 200F, Box 2404 Leuven 3001 Belgium
| | - Charlotte Verstraete
- Department of Chemistry KU Leuven Celestijnenlaan 200D, Box 2425 Leuven 3001 Belgium
- Biomedical MRI KU Leuven O&N I Herestraat 49 ‐ box 505 Leuven 3000 Belgium
| | - Maarten Bloemen
- Department of Chemistry KU Leuven Celestijnenlaan 200D, Box 2425 Leuven 3001 Belgium
- Biomedical MRI KU Leuven O&N I Herestraat 49 ‐ box 505 Leuven 3000 Belgium
| | - Bella Manshian
- Biomedical MRI KU Leuven O&N I Herestraat 49 ‐ box 505 Leuven 3000 Belgium
| | - Stefaan J. Soenen
- Biomedical MRI KU Leuven O&N I Herestraat 49 ‐ box 505 Leuven 3000 Belgium
| | - Uwe Himmelreich
- Biomedical MRI KU Leuven O&N I Herestraat 49 ‐ box 505 Leuven 3000 Belgium
| | - Thierry Verbiest
- Department of Chemistry KU Leuven Celestijnenlaan 200D, Box 2425 Leuven 3001 Belgium
| | - Wim M. De Borggraeve
- Department of Chemistry KU Leuven Celestijnenlaan 200F, Box 2404 Leuven 3001 Belgium
| | - Tatjana N. Parac‐Vogt
- Department of Chemistry KU Leuven Celestijnenlaan 200F, Box 2404 Leuven 3001 Belgium
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10
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Rath T, Neurath MF, Atreya R. Molecular Endoscopic Imaging in Cancer. Mol Imaging 2021. [DOI: 10.1016/b978-0-12-816386-3.00010-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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11
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Zhang C, Yao S, Xu C, Chang Y, Zong Y, Zhang K, Zhang X, Zhang L, Chen C, Zhao Y, Jiang H, Gao X, Wang Y. 3D Imaging and Quantification of the Integrin at a Single-Cell Base on a Multisignal Nanoprobe and Synchrotron Radiation Soft X-ray Tomography Microscopy. Anal Chem 2020; 93:1237-1241. [DOI: 10.1021/acs.analchem.0c04662] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Chunyu Zhang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing 100090, China
- Department of Chemistry and Chemical Engineering, Beijing University of Technology, Beijing 100124, China
| | - Shengkun Yao
- School of Physical Science and Technology, Shanghai Tech University, Shanghai 201210, China
- Shandong Provincial Engineering and Technical Center of Light Manipulations & Shandong Provincial Key Laboratory of Optics and Photonic Device, School of Physics and Electronics, Shandong Normal University, Jinan 250358, China
| | - Chao Xu
- College of Chemistry and Material Science, Shandong Agricultural University, Tai’an 271018, China
| | - Yanan Chang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Yunbing Zong
- School of Physical Science and Technology, Shanghai Tech University, Shanghai 201210, China
| | - Kai Zhang
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Xiangzhi Zhang
- Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
| | - Lijuan Zhang
- Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
| | - Chunying Chen
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing 100090, China
| | - Yuliang Zhao
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing 100090, China
| | - Huaidong Jiang
- School of Physical Science and Technology, Shanghai Tech University, Shanghai 201210, China
| | - Xueyun Gao
- Department of Chemistry and Chemical Engineering, Beijing University of Technology, Beijing 100124, China
| | - Yaling Wang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing 100090, China
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12
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Zhang D, Huang J, Li W, Zhang Z, Zhu M, Feng Y, Zhao Y, Li Y, Lu S, He S. Screening and identification of a CD44v6 specific peptide using improved phage display for gastric cancer targeting. ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:1442. [PMID: 33313187 PMCID: PMC7723568 DOI: 10.21037/atm-19-4781] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Background Peptide probes can be applied for biomarker targeting to improve the diagnostic accuracy. Cluster of differentiation 44 (CD44) is up-regulated in gastric cancer (GC). Among all the variants of CD44, CD44v6 is reported the most promising biomarker for GC. The purpose of this study was generating and identification a peptide ligand specific to CD44v6. Methods A 12-mer phage peptide library was screened on CD44v overexpressed HEK-293 cells with an improved subtractive method. Five candidate sequences emerged. Candidate phages were selected using enzyme-linked immunosorbent assay and competitive inhibition assays. Then the sequence (designated ELT) was chosen for further study. Its binding affinity and specificity were verified on recombinant protein, GC cells, GC tissues and xenograft models based on BALB/c-nu/nu mice using dissociation constant calculation, immunofluorescence, immunohistochemistry and in vivo imaging separately. Results The dissociation constant of ELT with recombinant protein was 611.2 nM. ELT stained CD44v overexpressed HEK-293 but not the cell expressing wild-type CD44s. On GC cell lines, ELT co-stained with anti-CD44v6 antibody. ELT binding on tumor tissues significantly increased compared with that of paracancer tissues, also showed a linear positive correlation with CD44v6 expression. ELT specifically accumulated in tumor and eliminated in short time in vivo. Conclusions ELT can target GC in vitro and in vivo via CD44v6, indicating its potential to serve as a probe for GC targeting diagnosis and therapy.
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Affiliation(s)
- Dan Zhang
- Department of Gastroenterology, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Jin Huang
- School of Electronic Information and Artificial Intelligence, Shannxi University of Science &Technology, Xi'an, China.,School of Materials Science and Engineering, Shannxi Normal University, Xi'an, China
| | - Weiming Li
- Department of Vascular Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Zhiyong Zhang
- Department of Gastroenterology, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Meng Zhu
- Department of Gastroenterology, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yun Feng
- Department of Gastroenterology, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yan Zhao
- Department of Gastroenterology, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yarui Li
- Department of Gastroenterology, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Shaoying Lu
- Department of Vascular Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Shuixiang He
- Department of Gastroenterology, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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13
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Zhang J, Duan F, Liu Y, Nie L. High-Resolution Photoacoustic Tomography for Early-Stage Cancer Detection and Its Clinical Translation. Radiol Imaging Cancer 2020; 2:e190030. [PMID: 33778711 PMCID: PMC7983802 DOI: 10.1148/rycan.2020190030] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Revised: 01/02/2020] [Accepted: 01/14/2020] [Indexed: 04/22/2023]
Abstract
Diagnosing cancer during early stages can substantially increase the cure rate, decrease the recurrence rate, and reduce health care costs. Over the past few decades, the continual development of new medical imaging modalities has been an important factor for diagnosing cancer, selecting therapies, and monitoring response to treatment. Photoacoustic tomography (PAT) is a hybrid imaging modality combining optical contrast from absorption of light with the outstanding spatiotemporal resolution of US imaging, providing biomedical morphologic and functional information of early-stage cancer. In this review, the basics and modalities of PAT, as well as a summary of its state-of-art applications in early-stage cancer (breast cancer, melanoma, and prostate cancer) detection and treatment guidance will be introduced. The potential clinical translation in cancer detection of PAT and prospects for the possibilities to lead to further clinical breakthroughs will also be discussed. Keywords: Molecular Imaging-Cancer, Photoacoustic Imaging © RSNA, 2020.
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14
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Schreiber CL, Zhai C, Dempsey JM, McGarraugh HH, Matthews BP, Christmann CR, Smith B. Paired Agent Fluorescence Imaging of Cancer in a Living Mouse Using Preassembled Squaraine Molecular Probes with Emission Wavelengths of 690 and 830 nm. Bioconjug Chem 2020; 31:214-223. [PMID: 31756298 PMCID: PMC7768864 DOI: 10.1021/acs.bioconjchem.9b00750] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
New methods are described for the construction of targeted fluorescence probes for imaging cancer and the assessment of tumor targeting performance in a living mouse model. A novel noncovalent assembly process was used to fabricate a set of structurally related targeted fluorescent probes with modular differences in three critical assembly components: the emission wavelength of the squaraine fluorochrome, the number of cRGDfK peptide units that target the cancer cells, and the length of the polyethylene glycol chains as pharmacokinetic controllers. Selective targeting of cancer cells was proven by a series of cell microscopy experiments followed by in vivo imaging of subcutaneous tumors in living mice. The mouse imaging studies included a mock surgery that completely removed a fluorescently labeled tumor. Enhanced tumor accumulation due to probe targeting was first evaluated by conducting Single Agent Imaging (SAI) experiments that compared tumor imaging performance of a targeted probe and untargeted probe in separate mouse cohorts. Although there was imaging evidence for enhanced tumor accumulation of the targeted probe, there was moderate scatter in the data due to tumor-to-tumor variability of the vasculature structure and interstitial pressure. A subsequent Paired Agent Imaging (PAI) study coinjected a binary mixture of targeted probe (with emission at 690 nm) and untargeted probe (with emission at 830 nm) into the same tumor-burdened animal. The conclusion of the PAI experiment also indicated enhanced tumor accumulation of the targeted probe, but the statistical significance was much higher, even though the experiment required a much smaller cohort of mice. The imaging data from the PAI experiment was analyzed to determine the targeted probe's Binding Potential (BP) for available integrin receptors within the tumor tissue. In addition, pixelated maps of BP within each tumor indicated a heterogeneous spatial distribution of BP values. The results of this study show that the combination of fluorescent probe preassembly and PAI is a promising new way to rapidly develop targeted fluorescent probes for tumors with high BP and eventual use in clinical applications such as targeted therapy, image guided surgery, and personalized medicine.
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Affiliation(s)
- Cynthia L. Schreiber
- Department of Chemistry and Biochemistry, 251 Nieuwland Science Hall, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Canjia Zhai
- Department of Chemistry and Biochemistry, 251 Nieuwland Science Hall, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Janel M. Dempsey
- Department of Chemistry and Biochemistry, 251 Nieuwland Science Hall, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Hannah H. McGarraugh
- Department of Chemistry and Biochemistry, 251 Nieuwland Science Hall, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Braden P. Matthews
- Department of Chemistry and Biochemistry, 251 Nieuwland Science Hall, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Caroline R. Christmann
- Department of Chemistry and Biochemistry, 251 Nieuwland Science Hall, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Bradley Smith
- Department of Chemistry and Biochemistry, 251 Nieuwland Science Hall, University of Notre Dame, Notre Dame, IN 46556, USA
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15
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Harris M, Biju S, Parac‐Vogt TN. High‐Field MRI Contrast Agents and their Synergy with Optical Imaging: the Evolution from Single Molecule Probes towards Nano‐architectures. Chemistry 2019; 25:13838-13847. [DOI: 10.1002/chem.201901141] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 07/03/2019] [Indexed: 12/30/2022]
Affiliation(s)
- Michael Harris
- Department of ChemistryKU Leuven Celestijnenlaan 200F Heverlee 3001 Belgium
| | - Silvanose Biju
- Department of ChemistryGovt. Arts College Thiruvananthapuram Kerala 695014 India
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16
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Ahmed S, Strand S, Weinmann-Menke J, Urbansky L, Galle PR, Neumann H. Molecular endoscopic imaging in cancer. Dig Endosc 2018; 30:719-729. [PMID: 29846982 DOI: 10.1111/den.13199] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 05/21/2018] [Indexed: 12/14/2022]
Abstract
Cancer is one of the major causes of death in both the USA and Europe. Molecular imaging is a novel field that is revolutionizing cancer management. It is based on the molecular signature of cells in order to study the human body both in normal and diseased conditions. The emergence of molecular imaging has been driven by the difficulties associated with cancer detection, particularly early-stage premalignant lesions which are often unnoticed as a result of minimal or no structural changes. Endoscopic surveillance is the standard method for early-stage cancer detection. In addition to recent major advancements in endoscopic instruments, significant progress has been achieved in the exploration of highly specific molecular probes and the combination of both will permit significant improvement of patient care. In this review, we provide an outline of the current status of endoscopic imaging and focus on recent applications of molecular imaging in gastrointestinal, hepatic and other cancers in the context of detection, targeted therapy and personalized medicine. As new imaging agents have the potential to broadly expand our cancer diagnostic capability, we will also present an overview of the main types of optical molecular probes with their pros and cons. We conclude by discussing the challenges and future prospects of the field.
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Affiliation(s)
- Shakil Ahmed
- Department of Interdisciplinary Endoscopy, I. Medical Clinic and Polyclinic, University Hospital Mainz, Mainz, Germany
| | - Susanne Strand
- Department of Interdisciplinary Endoscopy, I. Medical Clinic and Polyclinic, University Hospital Mainz, Mainz, Germany
| | - Julia Weinmann-Menke
- Department of Interdisciplinary Endoscopy, I. Medical Clinic and Polyclinic, University Hospital Mainz, Mainz, Germany
| | - Lana Urbansky
- Department of Interdisciplinary Endoscopy, I. Medical Clinic and Polyclinic, University Hospital Mainz, Mainz, Germany
| | - Peter R Galle
- Department of Interdisciplinary Endoscopy, I. Medical Clinic and Polyclinic, University Hospital Mainz, Mainz, Germany
| | - Helmut Neumann
- Department of Interdisciplinary Endoscopy, I. Medical Clinic and Polyclinic, University Hospital Mainz, Mainz, Germany
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17
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Duan Y, Xu Y, Mao D, Liew WH, Guo B, Wang S, Cai X, Thakor N, Yao K, Zhang CJ, Liu B. Photoacoustic and Magnetic Resonance Imaging Bimodal Contrast Agent Displaying Amplified Photoacoustic Signal. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1800652. [PMID: 30247812 DOI: 10.1002/smll.201800652] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Revised: 06/02/2018] [Indexed: 06/08/2023]
Abstract
Progress in photoacoustic (PA) and magnetic resonance imaging (MRI) bimodal contrast agents has been achieved mainly by utilizing the imaging capability of single or multiple components and consequently realizing the desired application for both imaging modalities. However, the mechanism of the mutual influence between components within a single nanoformulation, which is the key to developing high-performance multimodal contrast agents, has yet to be fully understood. Herein, by integrating conjugated polymers (CPs) with iron oxide (IO) nanoparticles using an amphiphilic polymer, a bimodal contrast agent named CP-IO is developed, displaying 45% amplified PA signal intensity as compared to bare CP nanoparticle, while the performance of MRI is not affected. Further experimental and theoretical simulation results reveal that the addition of IO nanoparticles in CP-IO nanocomposites contributes to this PA signal amplification through a synergistic effect of additional heat generation and faster heat dissipation. Besides, the feasibility of CP-IO nanocomposites acting as PA-MRI bimodal contrast agents is validated through in vivo tumor imaging using mice models. From this study, it is demonstrated that a delicately designed structural arrangement of various components in a contrast agent could potentially lead to a superior performance in the imaging capability.
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Affiliation(s)
- Yukun Duan
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Yu Xu
- Singapore Institute for Neurotechnology (SINAPSE), National University of Singapore, 28 Medical Drive, #05-COR, Singapore, 117456, Singapore
- Department of Biomedical Engineering, National University of Singapore, 9 Engineering Drive 1, Block EA #03-12, Singapore, 117575, Singapore
| | - Duo Mao
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Weng Heng Liew
- Institute of Materials Research and Engineering (IMRE) A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, Innovis, Singapore, 138634, Singapore
| | - Bing Guo
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Shaowei Wang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Xiaolei Cai
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Nitish Thakor
- Singapore Institute for Neurotechnology (SINAPSE), National University of Singapore, 28 Medical Drive, #05-COR, Singapore, 117456, Singapore
- Department of Biomedical Engineering, National University of Singapore, 9 Engineering Drive 1, Block EA #03-12, Singapore, 117575, Singapore
| | - Kui Yao
- Institute of Materials Research and Engineering (IMRE) A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, Innovis, Singapore, 138634, Singapore
| | - Chong-Jing Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, 1 Xian Nong Tan Street, Beijing, 100050, China
| | - Bin Liu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
- Singapore Institute for Neurotechnology (SINAPSE), National University of Singapore, 28 Medical Drive, #05-COR, Singapore, 117456, Singapore
- Institute of Materials Research and Engineering (IMRE) A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, Innovis, Singapore, 138634, Singapore
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18
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Klenske E, Neurath MF, Atreya R, Rath T. Molecular imaging in gastroenterology: A route for personalized endoscopy. Dig Liver Dis 2018; 50:878-885. [PMID: 30005960 DOI: 10.1016/j.dld.2018.06.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 06/08/2018] [Accepted: 06/13/2018] [Indexed: 02/06/2023]
Abstract
With the rapid expansion and diversification of the repertoire of biological agents utilized in inflammatory bowel diseases and cancer and the increase in oncological patients in gastroenterology, visualization of single receptor or molecular target expression and the subsequent initiation of expression tailored therapy are gaining increasing attention. Through the combination of utilizing fluorescently labeled probes with high specificity towards defined molecular targets and their subsequent detection and visualization with endoscopic devices, molecular imaging is a new emerging field focusing on the receptor expression within the mucosa on a cellular level rather than on macroscopic changes. In the past years various new technological and molecular probes have been successfully utilized for molecular imaging. Within this review, we summarize different technologies as well as molecular probes applied in molecular imaging and review current and past approaches for functional imaging with molecular endoscopy within the GI Tract and resulting clinical applications. It can be expected that molecular imaging allows for individualized diagnostic approaches and patient tailored medicine in the future.
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Affiliation(s)
- Entcho Klenske
- Department of Medicine I, Division of Gastroenterology, Ludwig Demling Endoscopy Center of Excellence, University Hospital of Erlangen, Germany
| | - Markus F Neurath
- Department of Medicine I, Division of Gastroenterology, Ludwig Demling Endoscopy Center of Excellence, University Hospital of Erlangen, Germany
| | - Raja Atreya
- Department of Medicine I, Division of Gastroenterology, Ludwig Demling Endoscopy Center of Excellence, University Hospital of Erlangen, Germany
| | - Timo Rath
- Department of Medicine I, Division of Gastroenterology, Ludwig Demling Endoscopy Center of Excellence, University Hospital of Erlangen, Germany.
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19
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Joshi BP, Wang TD. Targeted Optical Imaging Agents in Cancer: Focus on Clinical Applications. CONTRAST MEDIA & MOLECULAR IMAGING 2018; 2018:2015237. [PMID: 30224903 PMCID: PMC6129851 DOI: 10.1155/2018/2015237] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Revised: 05/27/2018] [Accepted: 07/04/2018] [Indexed: 12/13/2022]
Abstract
Molecular imaging is an emerging strategy for in vivo visualization of cancer over time based on biological mechanisms of disease activity. Optical imaging methods offer a number of advantages for real-time cancer detection, particularly in the epithelium of hollow organs and ducts, by using a broad spectral range of light that spans from visible to near-infrared. Targeted ligands are being developed for improved molecular specificity. These platforms include small molecule, peptide, affibody, activatable probes, lectin, and antibody. Fluorescence labeling is used to provide high image contrast. This emerging methodology is clinically useful for early cancer detection by identifying and localizing suspicious lesions that may not otherwise be seen and serves as a guide for tissue biopsy and surgical resection. Visualizing molecular expression patterns may also be useful to determine the best choice of therapy and to monitor efficacy. A number of these imaging agents are overcoming key challenges for clinical translation and are being validated in vivo for a wide range of human cancers.
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Affiliation(s)
- Bishnu P. Joshi
- Division of Gastroenterology, Department of Internal Medicine, School of Medicine, University of Michigan, 109 Zina Pitcher Place, BSRB 1722, Ann Arbor, MI 48109, USA
| | - Thomas D. Wang
- Division of Gastroenterology, Department of Internal Medicine, School of Medicine, University of Michigan, 109 Zina Pitcher Place, BSRB 1722, Ann Arbor, MI 48109, USA
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
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20
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Ma Y, Yates JR. Proteomics and pulse azidohomoalanine labeling of newly synthesized proteins: what are the potential applications? Expert Rev Proteomics 2018; 15:545-554. [PMID: 30005169 PMCID: PMC6329588 DOI: 10.1080/14789450.2018.1500902] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
INTRODUCTION Measuring the immediate changes in cells that arise from changing environmental conditions is crucial to understanding the underlying mechanisms involved. These changes can be measured with metabolic stable isotope fully labeled proteomes, but requires looking for changes in the midst of a large background. In addition, labeling efficiency can be an issue in primary and fully differentiated cells. Area covered: Azidohomoalanine (AHA), an analog of methionine, can be accepted by cellular translational machinery and incorporated into newly synthesized proteins (NSPs). AHA-NSPs can be coupled to biotin via CuAAC-mediated click-chemistry and enriched using avidin-based affinity purification. Thus, AHA-containing proteins or peptides can be enriched and efficiently separated from the whole proteome. In this review, we describe the development of mass spectrometry (MS) based AHA strategies and discuss their potential to measure proteins involved in immune response, secretome, gut microbiome, and proteostasis as well as their potential for clinical uses. Expert commentary: AHA strategies have been used to identify synthesis activity and to compare two biological conditions in various biological model organisms. In combination with instrument development, improved sample preparation and fractionation strategies, MS-based AHA strategies have the potential for broad application, and the methods should translate into clinical use.
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Affiliation(s)
- Yuanhui Ma
- a Departments of Molecular Medicine and Neurobiology , The Scripps Research Institute , La Jolla , CA , USA
| | - John R Yates
- a Departments of Molecular Medicine and Neurobiology , The Scripps Research Institute , La Jolla , CA , USA
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21
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Wang M, Vicente MG, Mason D, Bobadova-Parvanova P. Stability of a Series of BODIPYs in Acidic Conditions: An Experimental and Computational Study into the Role of the Substituents at Boron. ACS OMEGA 2018; 3:5502-5510. [PMID: 29876538 PMCID: PMC5981294 DOI: 10.1021/acsomega.8b00404] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Accepted: 05/03/2018] [Indexed: 06/08/2023]
Abstract
Boron-dipyrromethene (BODIPY) dyes have been extensively investigated in recent years for a variety of bioanalytical and bioimaging applications. The success of these applications relies on the stability of BODIPYs, particularly under acidic conditions. In this work, the stability of a series of 4,4'-disubstituted BODIPYs (-F, -CN, -Ph, -Me, -OMe) toward addition of excess trifluoroacetic acid (TFA) was studied systematically and comprehensively through 11B and 1H NMR, UV-vis, fluorescence, thin layer chromatography, mass spectrometry, and infrared. The results indicate that 4,4'-dicyano-BODIPY 2 is the most stable among this series and remains unchanged even 3 days after addition of excess TFA. On the other hand, 4,4'-dimethyl-BODIPY 3 and 4,4'-dimethoxy-BODIPY 5 are the least stable, toward addition of TFA, and the 4,4'-diphenyl and 4,4'-difluoro-BODIPYs 1 and 4 were found to have intermediate stability. The experimental analysis and comparison with theoretical calculations indicate that the 4,4'-dicyano-BODIPY 2 has the greater aromaticity of the series, as evaluated by the BLA parameter, decreased charge on boron, and upon TFA addition it forms an unusually stable BODIPY 2···TFA complex. On the other hand, all other BODIPYs decompose within hours after TFA addition. Computational modeling demonstrates that 4,4'-dicyano substitution increases aromaticity and stabilizes the B-N bond, resulting in the most stable compound from the series studied.
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Affiliation(s)
- Maodie Wang
- Department
of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, United States
| | - M. Graça
H. Vicente
- Department
of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, United States
| | - Deanna Mason
- Department
of Chemistry, Rockhurst University, Kansas City, Missouri 64110, United States
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22
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Wilson BC, Jermyn M, Leblond F. Challenges and opportunities in clinical translation of biomedical optical spectroscopy and imaging. JOURNAL OF BIOMEDICAL OPTICS 2018; 23:1-13. [PMID: 29512358 PMCID: PMC5838403 DOI: 10.1117/1.jbo.23.3.030901] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Accepted: 01/24/2018] [Indexed: 05/03/2023]
Abstract
Medical devices face many hurdles before they enter routine clinical practice to address unmet clinical needs. This is also the case for biomedical optical spectroscopy and imaging systems that are used here to illustrate the opportunities and challenges involved. Following initial concept, stages in clinical translation include instrument development, preclinical testing, clinical prototyping, clinical trials, prototype-to-product conversion, regulatory approval, commercialization, and finally clinical adoption and dissemination, all in the face of potentially competing technologies. Optical technologies face additional challenges from their being extremely diverse, often targeting entirely different diseases and having orders-of-magnitude differences in resolution and tissue penetration. However, these technologies can potentially address a wide variety of unmet clinical needs since they provide rich intrinsic biochemical and structural information, have high sensitivity and specificity for disease detection and localization, and are practical, safe (minimally invasive, nonionizing), and relatively affordable.
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Affiliation(s)
- Brian C. Wilson
- University of Toronto and Princess Margaret Cancer Centre/University Health Network, Department of Medical Biophysics, Toronto, Ontario, Canada
| | - Michael Jermyn
- Dartmouth College, Thayer School of Engineering, Hanover, New Hampshire, United States
| | - Frederic Leblond
- Polytechnique Montreal, Department of Engineering Physics, Montreal, Québec, Canada
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal, Montreal, Québec, Canada
- Address all correspondence to: Frederic Leblond, E-mail:
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23
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Liu W, Huang B, Tong ZX, Wang S, Li YJ, Dai YY. A sensitive two-photon ratiometric fluorescent probe for γ-glutamyltranspeptidase activity detection and imaging in living cells and cancer tissues. NEW J CHEM 2018. [DOI: 10.1039/c8nj00520f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We develop a novel ratiometric two-photon fluorescent probe that allows highly sensitive and selective detection and imaging of γ-glutamyltranspeptidase activities.
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Affiliation(s)
- Wei Liu
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation
- East China University of Technology
- Nanchang 330013
- P. R. China
| | - Bo Huang
- State Key Laboratory of Chemo/BioSensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
| | - Zong-Xuan Tong
- State Key Laboratory of Chemo/BioSensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- P. R. China
| | - Shuanglong Wang
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation
- East China University of Technology
- Nanchang 330013
- P. R. China
| | - Yi-Jin Li
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation
- East China University of Technology
- Nanchang 330013
- P. R. China
| | - Yu-You Dai
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation
- East China University of Technology
- Nanchang 330013
- P. R. China
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24
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Duan X, Li H, Wang F, Li X, Oldham KR, Wang TD. Three-dimensional side-view endomicroscope for tracking individual cells in vivo. BIOMEDICAL OPTICS EXPRESS 2017; 8:5533-5545. [PMID: 29296486 PMCID: PMC5745101 DOI: 10.1364/boe.8.005533] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Revised: 10/31/2017] [Accepted: 10/31/2017] [Indexed: 05/28/2023]
Abstract
We demonstrate a side-view endomicroscope using a monolithic 3-axis scanner placed in the post-objective position that performs either tilt or piston motion to achieve either optical scan angles >10° or large vertical displacements, respectively. This configuration allows for scaling down of instrument dimensions for high maneuverability and accurate positioning in vivo. Images exceeded either 700 × 600 μm2 in the horizontal plane or vertical depths of 200 μm. Resolution of 1.19 and 3.46 μm was obtained in the horizontal and oblique planes, respectively. Optical sections were collected from dysplastic colonic epithelium in vivo in mice that express tdTomato at 10 Hz to visualize individual cells.
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Affiliation(s)
- Xiyu Duan
- Department of Internal Medicine, Division of Gastroenterology, University of Michigan, Ann Arbor, MI 48109, USA
- These authors contributed equally to this work
| | - Haijun Li
- Department of Internal Medicine, Division of Gastroenterology, University of Michigan, Ann Arbor, MI 48109, USA
- These authors contributed equally to this work
| | - Fa Wang
- Department of Internal Medicine, Division of Gastroenterology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Xue Li
- Department of Internal Medicine, Division of Gastroenterology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Kenn R. Oldham
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
| | - Thomas D. Wang
- Department of Internal Medicine, Division of Gastroenterology, University of Michigan, Ann Arbor, MI 48109, USA
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
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25
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Desu HR, Thoma LA, Wood GC. αvβ3 Integrin Receptor Targeting and Near-Infrared Imaging of Solid Tumors Using Surface-Modified Nanoliposomes. J Pharm Innov 2017. [DOI: 10.1007/s12247-017-9296-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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26
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Kim D, Baik SH, Kang S, Cho SW, Bae J, Cha MY, Sailor MJ, Mook-Jung I, Ahn KH. Close Correlation of Monoamine Oxidase Activity with Progress of Alzheimer's Disease in Mice, Observed by in Vivo Two-Photon Imaging. ACS CENTRAL SCIENCE 2016; 2:967-975. [PMID: 28058286 PMCID: PMC5200925 DOI: 10.1021/acscentsci.6b00309] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Indexed: 05/26/2023]
Abstract
Monoamine oxidases (MAOs) play an important role in Alzheimer's disease (AD) pathology. We report in vivo comonitoring of MAO activity and amyloid-β (Aβ) plaques dependent on the aging of live mice with AD, using a two-photon fluorescence probe. The probe under the catalytic action of MAO produces a dipolar fluorophore that senses Aβ plaques, a general AD biomarker, enabling us to comonitor the enzyme activity and the progress of AD indicated by Aβ plaques. The results show that the progress of AD has a close correlation with MAO activity, which can be categorized into three stages: slow initiation stage up to three months, an aggressive stage, and a saturation stage from nine months. Histological analysis also reveals elevation of MAO activity around Aβ plaques in aged mice. The close correlation between the MAO activity and AD progress observed by in vivo monitoring for the first time prompts us to investigate the enzyme as a potential biomarker of AD.
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Affiliation(s)
- Dokyoung Kim
- Department
of Chemistry, Pohang University of Science
and Technology (POSTECH), 77 Cheongam-Ro, Nam-Gu, Pohang, Gyungbuk 37673, Republic
of Korea
- Department
of Chemistry and Biochemistry, University
of California, San Diego, La Jolla, California 92093, United States
| | - Sung Hoon Baik
- Department
of Biochemistry and Biomedical Sciences, College of Medicine, Seoul National University, 103 Daehak-Ro, Jongro-Gu, Seoul 110-799, Republic
of Korea
| | - Seokjo Kang
- Department
of Biochemistry and Biomedical Sciences, College of Medicine, Seoul National University, 103 Daehak-Ro, Jongro-Gu, Seoul 110-799, Republic
of Korea
| | - Seo Won Cho
- Department
of Chemistry, Pohang University of Science
and Technology (POSTECH), 77 Cheongam-Ro, Nam-Gu, Pohang, Gyungbuk 37673, Republic
of Korea
| | - Juryang Bae
- Department
of Chemistry, Pohang University of Science
and Technology (POSTECH), 77 Cheongam-Ro, Nam-Gu, Pohang, Gyungbuk 37673, Republic
of Korea
| | - Moon-Yong Cha
- Department
of Biochemistry and Biomedical Sciences, College of Medicine, Seoul National University, 103 Daehak-Ro, Jongro-Gu, Seoul 110-799, Republic
of Korea
| | - Michael J. Sailor
- Department
of Chemistry and Biochemistry, University
of California, San Diego, La Jolla, California 92093, United States
| | - Inhee Mook-Jung
- Department
of Biochemistry and Biomedical Sciences, College of Medicine, Seoul National University, 103 Daehak-Ro, Jongro-Gu, Seoul 110-799, Republic
of Korea
| | - Kyo Han Ahn
- Department
of Chemistry, Pohang University of Science
and Technology (POSTECH), 77 Cheongam-Ro, Nam-Gu, Pohang, Gyungbuk 37673, Republic
of Korea
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27
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Cal PMSD, Sieglitz F, Santos FMF, Parente Carvalho C, Guerreiro A, Bertoldo JB, Pischel U, Gois PMP, Bernardes GJL. Site-selective installation of BASHY fluorescent dyes to Annexin V for targeted detection of apoptotic cells. Chem Commun (Camb) 2016; 53:368-371. [PMID: 27935613 PMCID: PMC6485347 DOI: 10.1039/c6cc08671c] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fluorophores are indispensable for imaging biological processes. We report the design and synthesis of azide-tagged boronic acid salicylidenehydrazone (BASHY) dyes and their use for site-selective labelling of Annexin V. The Annexin V-BASHY conjugate maintained function and fluorescence as demonstrated by the targeted detection of apoptotic cells.
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Affiliation(s)
- Pedro M S D Cal
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Avenida Professor Egas Moniz, 1649-028, Lisboa, Portugal. and Department of Chemistry, University of Cambridge, Lensfield Road, CB2 1EW Cambridge, UK.
| | - Florian Sieglitz
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Avenida Professor Egas Moniz, 1649-028, Lisboa, Portugal.
| | - Fábio M F Santos
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisboa, Portugal.
| | - Cátia Parente Carvalho
- CIQSO - Center for Research in Sustainable Chemistry and Department of Chemistry, University of Huelva, Campus de El Carmen s/n, 21071 Huelva, Spain
| | - Ana Guerreiro
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Avenida Professor Egas Moniz, 1649-028, Lisboa, Portugal.
| | - Jean B Bertoldo
- Department of Chemistry, University of Cambridge, Lensfield Road, CB2 1EW Cambridge, UK.
| | - Uwe Pischel
- CIQSO - Center for Research in Sustainable Chemistry and Department of Chemistry, University of Huelva, Campus de El Carmen s/n, 21071 Huelva, Spain
| | - Pedro M P Gois
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisboa, Portugal.
| | - Gonçalo J L Bernardes
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Avenida Professor Egas Moniz, 1649-028, Lisboa, Portugal. and Department of Chemistry, University of Cambridge, Lensfield Road, CB2 1EW Cambridge, UK.
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28
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Cancer stem cells, cancer-initiating cells and methods for their detection. Drug Discov Today 2016; 21:836-42. [DOI: 10.1016/j.drudis.2016.03.004] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2015] [Revised: 02/19/2016] [Accepted: 03/04/2016] [Indexed: 02/07/2023]
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29
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Satpati D, Shinto A, Kamaleshwaran KK, Sane S, Banerjee S. Convenient Preparation of [68Ga]DKFZ-PSMA-11 Using a Robust Single-Vial Kit and Demonstration of Its Clinical Efficacy. Mol Imaging Biol 2016; 18:420-7. [DOI: 10.1007/s11307-016-0943-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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30
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Chan M, Almutairi A. Nanogels as imaging agents for modalities spanning the electromagnetic spectrum. MATERIALS HORIZONS 2016; 3:21-40. [PMID: 27398218 PMCID: PMC4906372 DOI: 10.1039/c5mh00161g] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Accepted: 09/25/2015] [Indexed: 05/05/2023]
Abstract
In the past few decades, advances in imaging equipment and protocols have expanded the role of imaging in in vivo diagnosis and disease management, especially in cancer. Traditional imaging agents have rapid clearance and low specificity for disease detection. To improve accuracy in disease identification, localization and assessment, novel nanomaterials are frequently explored as imaging agents to achieve high detection specificity and sensitivity. A promising material for this purpose are hydrogel nanoparticles, whose high hydrophilicity, biocompatibility, and tunable size in the nanometer range make them ideal for imaging. These nanogels (10 to 200 nm) can circumvent uptake by the reticuloendothelial system, allowing longer circulation times than small molecules. In addition, their size/surface properties can be further tailored to optimize their pharmacokinetics for imaging of a particular disease. Herein, we provide a comprehensive review of nanogels as imaging agents in various modalities with sources of signal spanning the electromagnetic spectrum, including MRI, NIR, UV-vis, and PET. Many materials and formulation methods will be reviewed to highlight the versatility of nanogels as imaging agents.
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Affiliation(s)
- Minnie Chan
- Department of Chemistry and Biochemistry , University of California , San Diego , La Jolla , CA 92093-0600 , USA
| | - Adah Almutairi
- Skaggs School of Pharmacy and Pharmaceutical Sciences , KACST-UCSD Center of Excellence in Nanomedicine , Laboratory of Bioresponsive Materials , University of California , 9500 Gilman Dr., 0600 , PSB 2270 , La Jolla , San Diego , CA 92093-0600 , USA . ; Tel: +1 (858) 246 0871
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31
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Chen S, Zhang J, Song S, Feng R, Ju Y, Xiong C, Dong L. Hydrophilic Magnetofluorescent Nanobowls: Rapid Magnetic Response and Efficient Photoluminescence. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:611-618. [PMID: 26666287 DOI: 10.1021/acs.langmuir.5b03978] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Multifunctional integration based on a single nanostructure is emerging as a promising paradigm to future functional materials. In this paper, novel magnetofluorescence nanobowls built with ferroferric mandrel and quantum dots exoderm is reported. Magnetic mandrels are stacked into nanobowls though hydrophobic primary Fe3O4 nanocrystals dragged into anion polyelectrolyte aqueous solution via forced solvent evaporation. Bright luminescence core/shell/shell CdSe/CdS/ZnS quantum dots (QDs) are modified with cationic hyperbranched polyethylenimine (PEI). Through electrostatic interactions, positively charged PEI-coated QDs are anchored on the surface of magnetic mandrel. Under this method, the luminescence of QDs is not quenched by magnetic partners in the resultant magnetoflurescence nanobowls. Such magnetoflurescence nanobowls exhibit high saturation magnetization, superparamagnetic characteristics at room temperature, superior water dispersibility, and excellent photoluminescence properties. The newly developed magnetoflurescence nanobowls open a new dimension in efforts toward multimodal imaging probes combining strong magnetization and efficient fluorescence in tandem for biosensors and clinical diagnostic imaging.
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Affiliation(s)
- Shun Chen
- School of Materials Science and Engineering, Wuhan University of Technology , Luoshi Road 122, Wuhan 430070, P.R. China
| | - Junjun Zhang
- School of Materials Science and Engineering, Wuhan University of Technology , Luoshi Road 122, Wuhan 430070, P.R. China
| | - Shaokun Song
- School of Materials Science and Engineering, Wuhan University of Technology , Luoshi Road 122, Wuhan 430070, P.R. China
| | - Rui Feng
- School of Materials Science and Engineering, Wuhan University of Technology , Luoshi Road 122, Wuhan 430070, P.R. China
| | - Yanyun Ju
- School of Materials Science and Engineering, Wuhan University of Technology , Luoshi Road 122, Wuhan 430070, P.R. China
| | - Chuanxi Xiong
- School of Materials Science and Engineering, Wuhan University of Technology , Luoshi Road 122, Wuhan 430070, P.R. China
| | - Lijie Dong
- School of Materials Science and Engineering, Wuhan University of Technology , Luoshi Road 122, Wuhan 430070, P.R. China
- Department of Materials Science and Engineering, Cornell University , Ithaca, New York 14850, United States
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32
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Venkatesha N, Qurishi Y, Atreya HS, Srivastava C. ZnO coated CoFe2O4 nanoparticles for multimodal bio-imaging. RSC Adv 2016. [DOI: 10.1039/c5ra25953c] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The potential of CoFe2O4–ZnO core–shell nanoparticles for fluorescence optical imaging and as a contrast agent for magnetic resonance imaging (MRI) is demonstrated.
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Affiliation(s)
- N. Venkatesha
- Department of Materials Engineering
- Indian Institute of Science
- Bangalore
- India
| | - Yasrib Qurishi
- Department of Molecular Reproduction
- Development and Genetics
- Indian Institute of Science
- Bangalore
- India
| | | | - Chandan Srivastava
- Department of Materials Engineering
- Indian Institute of Science
- Bangalore
- India
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33
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Wang L, Zhong X, Qian W, Huang J, Cao Z, Yu Q, Lipowska M, Lin R, Wang A, Yang L, Mao H. Ultrashort echo time (UTE) imaging of receptor targeted magnetic iron oxide nanoparticles in mouse tumor models. J Magn Reson Imaging 2015; 40:1071-81. [PMID: 25485347 DOI: 10.1002/jmri.24453] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
PURPOSE The purpose of this study was to investigate an ultrashort echo time (UTE) imaging approach for improving the detection of receptor targeted magnetic nanoparticles in cancer xenograft models using positive contrast. MATERIALS AND METHODS Iron oxide nanoparticle (IONP) conjugated with tumor targeting ligands were prepared. A 3D UTE gradient echo sequence with the shortest TE of 0.07 msec was evaluated on a 3T magnetic resonance imaging (MRI) scanner using IONP solution, cancer cells bound with targeted IONPs and orthotopic human pancreatic, and breast cancer mouse models administered tumor targeting IONPs. A simulation was performed to analyze contrast-to-noise ratios (CNR) of UTE images and subtraction of the images obtained UTE and longer TE (SubUTE). T2-weighted imaging and T2 relaxometry mapping were applied for comparison and validation. RESULTS UTE and SubUTE images showed positive contrast in pancreatic tumors accumulated with EGFR targeted ScFvEGFR-IONPs and mammary tumors accumulated with uPAR targeted ATF-IONPs. The positive contrast observed in UTE images was consistent with the negative contrast observed in the T2-weighted images. A flip angle of 10° and a maximal possible TE for the second echo are suitable for SubUTE imaging. CONCLUSION UTE imaging is capable of detecting tumor targeted IONPs in vivo with positive contrast in molecular MRI applications.
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34
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Li F, Li N. Endoscopic molecular imaging of gastrointestinal tumors. Shijie Huaren Xiaohua Zazhi 2015; 23:5333-5341. [DOI: 10.11569/wcjd.v23.i33.5333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
In China, the incidence and mortality of gastrointestinal cancers are high, and early diagnosis is the key to improving the survival rate. In recent years, endoscopic molecular imaging in tumor diagnosis with its unique advantages has attracted more and more attention. With the rapid development of molecular biology, the mechanism of tumor occurrence and development has been gradually elucidated. The advent of fluorescent labeled molecular probes and targeted binding to molecular targets of gastrointestinal tumors makes it possible achieve real-time endoscopic molecular diagnosis of digestive tract tumors, which has a significant impact on tumor targeted therapy. In this paper, we review the progress in endoscopic molecular imaging of digestive tract tumors.
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35
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Gadolinium(III)-DOTA Complex Functionalized with BODIPY as a Potential Bimodal Contrast Agent for MRI and Optical Imaging. INORGANICS 2015. [DOI: 10.3390/inorganics3040516] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
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36
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Mendes TFS, Kluskens LD, Rodrigues LR. Triple Negative Breast Cancer: Nanosolutions for a Big Challenge. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2015; 2:1500053. [PMID: 27980912 PMCID: PMC5115335 DOI: 10.1002/advs.201500053] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Revised: 06/03/2015] [Indexed: 05/11/2023]
Abstract
Triple negative breast cancer (TNBC) is a particular immunopathological subtype of breast cancer that lacks expression of estrogen and progesterone receptors (ER/PR) and amplification of the human epidermal growth factor receptor 2 (HER2) gene. Characterized by aggressive and metastatic phenotypes and high rates of relapse, TNBC is the only breast cancer subgroup still lacking effective therapeutic options, thus presenting the worst prognosis. The development of targeted therapies, as well as early diagnosis methods, is vital to ensure an adequate and timely therapeutic intervention in patients with TNBC. This review intends to discuss potentially emerging approaches for the diagnosis and treatment of TNBC patients, with a special focus on nano-based solutions that actively target these particular tumors.
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Affiliation(s)
| | - Leon D Kluskens
- Centre of Biological Engineering University of Minho 4710-057 Braga Portugal
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37
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Hybrid lymph node imaging using 64Cu-labeled mannose-conjugated human serum albumin with and without indocyanine green. Nucl Med Commun 2015; 36:1026-34. [DOI: 10.1097/mnm.0000000000000353] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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38
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Zhang D, Jia H, Li W, Hou Y, Lu S, He S. Screening and Identification of a Phage Display Derived Peptide That Specifically Binds to the CD44 Protein Region Encoded by Variable Exons. ACTA ACUST UNITED AC 2015; 21:44-53. [PMID: 26423339 DOI: 10.1177/1087057115608604] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Accepted: 08/23/2015] [Indexed: 12/12/2022]
Abstract
CD44, especially the isoforms with variable exons (CD44v), is a promising biomarker for the detection of cancer. To develop a CD44v-specific probe, we screened a 7-mer phage peptide library against the CD44v3-v10 protein using an improved subtractive method. The consensus sequences with the highest frequency (designated CV-1) emerged after four rounds of panning. The binding affinity and specificity of the CV-1 phage and the synthesized peptide for the region of CD44 encoded by the variable exons were confirmed using enzyme-linked immunosorbent assay and competitive inhibition assays. Furthermore, the binding of the CV-1 probe to gastric cancer cells and tissues was validated using immunofluorescence and immunohistochemistry assays. CV-1 sensitively and specifically bound to CD44v on cancer cells and tissues. Thus, CV-1 has the potential to serve as a promising probe for cancer molecular imaging and target therapy.
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Affiliation(s)
- Dan Zhang
- Department of Gastroenterology, the First Affiliated Hospital of Medical School, Xian Jiaotong University, Xi'an, China
| | - Huan Jia
- Department of General Surgery, the First Affiliated Hospital of Xi'an Medical University, Xi'an, China
| | - Weiming Li
- Department of General Surgery, the First Affiliated Hospital of Medical School, Xian Jiaotong University, Xi'an, China
| | - Yingchun Hou
- College of Life Science, Shaanxi Normal University, Xi'an, China
| | - Shaoying Lu
- Department of General Surgery, the First Affiliated Hospital of Medical School, Xian Jiaotong University, Xi'an, China
| | - Shuixiang He
- Department of Gastroenterology, the First Affiliated Hospital of Medical School, Xian Jiaotong University, Xi'an, China
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39
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Ceulemans M, Debroye E, Vander Elst L, De Borggraeve W, Parac‐Vogt TN. Luminescence and Relaxometric Properties of Heteropolymetallic Metallostar Complexes with Selectively Incorporated Lanthanide(III) Ions. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201500648] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Matthias Ceulemans
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium, http://chem.kuleuven.be/lbc/
| | - Elke Debroye
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium, http://chem.kuleuven.be/lbc/
| | - Luce Vander Elst
- Department of General, Organic and Biomedical Chemistry, University of Mons, Place du Parc 23, 7000 Mons, Belgium
| | - Wim De Borggraeve
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium, http://chem.kuleuven.be/lbc/
| | - Tatjana N. Parac‐Vogt
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium, http://chem.kuleuven.be/lbc/
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40
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Liu J, Li Z, Yang X, Liu W, Wang B, Zhu Y, Mu K, Zhu W. A high-performance imaging probe with NIR luminescence and synergistically enhanced T1–T2 relaxivity for in vivo hepatic tumor targeting and multimodal imaging. Chem Commun (Camb) 2015. [DOI: 10.1039/c5cc04911c] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A high-performance nanoprobe with high tumor-targeting efficacy, NIR luminescence and synergistically enhanced T1-/T2-weighted MR imaging in vivo was synthesized.
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Affiliation(s)
- Jian Liu
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province and State Key Laboratory of Applied Organic Chemistry Lanzhou University Gansu
- Lanzhou University
- Lanzhou
- P. R. China
| | - Zhengzheng Li
- College of Life Science and Technology
- Huazhong University of Science and Technology
- Wuhan
- P. R. China
| | - Xiangliang Yang
- College of Life Science and Technology
- Huazhong University of Science and Technology
- Wuhan
- P. R. China
| | - Weisheng Liu
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province and State Key Laboratory of Applied Organic Chemistry Lanzhou University Gansu
- Lanzhou University
- Lanzhou
- P. R. China
| | - Baodui Wang
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province and State Key Laboratory of Applied Organic Chemistry Lanzhou University Gansu
- Lanzhou University
- Lanzhou
- P. R. China
| | - Yanhong Zhu
- College of Life Science and Technology
- Huazhong University of Science and Technology
- Wuhan
- P. R. China
| | - Ketao Mu
- Radiology Department of Tongji Hospital
- Huazhong University of Science and Technology
- Wuhan
- P. R. China
| | - Wenzhen Zhu
- Radiology Department of Tongji Hospital
- Huazhong University of Science and Technology
- Wuhan
- P. R. China
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41
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Ferber S, Baabur-Cohen H, Blau R, Epshtein Y, Kisin-Finfer E, Redy O, Shabat D, Satchi-Fainaro R. Polymeric nanotheranostics for real-time non-invasive optical imaging of breast cancer progression and drug release. Cancer Lett 2014; 352:81-9. [DOI: 10.1016/j.canlet.2014.02.022] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2013] [Revised: 02/13/2014] [Accepted: 02/18/2014] [Indexed: 10/25/2022]
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42
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Kim D, Xuan QP, Moon H, Jun YW, Ahn KH. Synthesis of Benzocoumarins and Characterization of Their Photophysical Properties. ASIAN J ORG CHEM 2014. [DOI: 10.1002/ajoc.201402107] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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43
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Advances in imaging probes and optical microendoscopic imaging techniques for early in vivo cancer assessment. Adv Drug Deliv Rev 2014; 74:53-74. [PMID: 24120351 DOI: 10.1016/j.addr.2013.09.012] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2013] [Revised: 09/18/2013] [Accepted: 09/27/2013] [Indexed: 12/12/2022]
Abstract
A new chapter in the history of medical diagnosis happened when the first X-ray technology was invented in the late 1800s. Since then, many non-invasive and minimally invasive imaging techniques have been invented for clinical diagnosis to research in cellular biology, drug discovery, and disease monitoring. These imaging modalities have leveraged the benefits of significant advances in computer, electronics, and information technology and, more recently, targeted molecular imaging. The development of targeted contrast agents such as fluorescent and nanoparticle probes coupled with optical imaging techniques has made it possible to selectively view specific biological events and processes in both in vivo and ex vivo systems with great sensitivity and selectivity. Thus, the combination of targeted molecular imaging probes and optical imaging techniques have become a mainstay in modern medicinal and biological research. Many promising results have demonstrated great potentials to translate to clinical applications. In this review, we describe a discussion of employing imaging probes and optical microendoscopic imaging techniques for cancer diagnosis.
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44
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Wu B, Gayen SK. Fluorescence tomography of targets in a turbid medium using non-negative matrix factorization. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2014; 89:042708. [PMID: 24827279 DOI: 10.1103/physreve.89.042708] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Indexed: 06/03/2023]
Abstract
A near-infrared optical tomography approach for detection, three-dimensional localization, and cross-section imaging of fluorescent targets in a turbid medium is introduced. The approach uses multisource probing of targets, multidetector acquisition of diffusely transmitted fluorescence signal, and a non-negative matrix factorization based blind source separation scheme to obtain three-dimensional location of the targets. A Fourier transform back-projection algorithm provides an estimate of target cross section. The efficacy of the approach is demonstrated in an experiment involving two laterally separated small fluorescent targets embedded in a human breast tissue-simulating sample of thickness 60 times the transport mean free path. The approach could locate the targets within ∼1 mm of their known positions, and provide estimates of their cross sections. The high spatial resolution, fast reconstruction speed, noise tolerance, and ability to detect small targets are indicative of the potential of the approach for detecting and locating fluorescence contrast-enhanced breast tumors in early growth stages, when they are more amenable to treatment.
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Affiliation(s)
- Binlin Wu
- Physics Department, The City College and the Graduate Center of the City University of New York, 160 Convent Avenue, New York, New York 10031, USA
| | - S K Gayen
- Physics Department, The City College and the Graduate Center of the City University of New York, 160 Convent Avenue, New York, New York 10031, USA
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45
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Ardeshirpour Y, Chernomordik V, Hassan M, Zielinski R, Capala J, Gandjbakhche A. In vivo fluorescence lifetime imaging for monitoring the efficacy of the cancer treatment. Clin Cancer Res 2014; 20:3531-9. [PMID: 24671949 DOI: 10.1158/1078-0432.ccr-13-1826] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
PURPOSE Advances in tumor biology created a foundation for targeted therapy aimed at inactivation of specific molecular mechanisms responsible for cell malignancy. In this paper, we used in vivo fluorescence lifetime imaging with HER2-targeted fluorescent probes as an alternative imaging method to investigate the efficacy of targeted therapy with 17-DMAG (an HSP90 inhibitor) on tumors with high expression of HER2 receptors. EXPERIMENTAL DESIGN HER2-specific Affibody, conjugated to Alexafluor 750, was injected into nude mice bearing HER2-positive tumor xenograft. The fluorescence lifetime was measured before treatment and monitored after the probe injections at 12 hours after the last treatment dose, when the response to the 17-DMAG therapy was the most pronounced as well as a week after the last treatment when the tumors grew back almost to their pretreatment size. RESULTS Imaging results showed significant difference between the fluorescence lifetimes at the tumor and the contralateral site (∼0.13 ns) in the control group (before treatment) and 7 days after the last treatment when the tumors grew back to their pretreatment dimensions. However, at the time frame that the treatment had its maximum effect (12 hours after the last treatment), the difference between the fluorescence lifetime at the tumor and contralateral site decreased to 0.03 ns. CONCLUSIONS The results showed a good correlation between fluorescence lifetime and the efficacy of the treatment. These findings show that in vivo fluorescence lifetime imaging can be used as a promising molecular imaging tool for monitoring the treatment outcome in preclinical models and potentially in patients.
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Affiliation(s)
- Yasaman Ardeshirpour
- Authors' Affiliations: NIH/National Institute of Child Health and Human Development, Bethesda
| | - Victor Chernomordik
- Authors' Affiliations: NIH/National Institute of Child Health and Human Development, Bethesda
| | - Moinuddin Hassan
- Authors' Affiliations: NIH/National Institute of Child Health and Human Development, Bethesda; Division of Physics, Office of Science and Engineering Laboratories, CDRH, FDA, Silver Spring
| | - Rafal Zielinski
- NIH/National Cancer Institute, Rockville, Maryland; and UT MD Anderson Cancer Center, Houston, Texas
| | - Jacek Capala
- NIH/National Cancer Institute, Rockville, Maryland; and
| | - Amir Gandjbakhche
- Authors' Affiliations: NIH/National Institute of Child Health and Human Development, Bethesda;
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46
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Xing Y, Zhao J, Conti PS, Chen K. Radiolabeled nanoparticles for multimodality tumor imaging. Theranostics 2014; 4:290-306. [PMID: 24505237 PMCID: PMC3915092 DOI: 10.7150/thno.7341] [Citation(s) in RCA: 147] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2013] [Accepted: 10/15/2013] [Indexed: 12/22/2022] Open
Abstract
Each imaging modality has its own unique strengths. Multimodality imaging, taking advantages of strengths from two or more imaging modalities, can provide overall structural, functional, and molecular information, offering the prospect of improved diagnostic and therapeutic monitoring abilities. The devices of molecular imaging with multimodality and multifunction are of great value for cancer diagnosis and treatment, and greatly accelerate the development of radionuclide-based multimodal molecular imaging. Radiolabeled nanoparticles bearing intrinsic properties have gained great interest in multimodality tumor imaging over the past decade. Significant breakthrough has been made toward the development of various radiolabeled nanoparticles, which can be used as novel cancer diagnostic tools in multimodality imaging systems. It is expected that quantitative multimodality imaging with multifunctional radiolabeled nanoparticles will afford accurate and precise assessment of biological signatures in cancer in a real-time manner and thus, pave the path towards personalized cancer medicine. This review addresses advantages and challenges in developing multimodality imaging probes by using different types of nanoparticles, and summarizes the recent advances in the applications of radiolabeled nanoparticles for multimodal imaging of tumor. The key issues involved in the translation of radiolabeled nanoparticles to the clinic are also discussed.
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Zhang Y, Xiao L, Popovic K, Xie X, Chordia MD, Chung LW, Williams MB, Yue W, Pan D. Novel cancer-targeting SPECT/NIRF dual-modality imaging probe (99m)Tc-PC-1007: synthesis and biological evaluation. Bioorg Med Chem Lett 2013; 23:6350-4. [PMID: 24125889 PMCID: PMC4710472 DOI: 10.1016/j.bmcl.2013.09.074] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2013] [Revised: 09/18/2013] [Accepted: 09/23/2013] [Indexed: 01/18/2023]
Abstract
Synthesis, characterization, in vitro and in vivo biological evaluation of a heptamethine cyanine based dual-mode single-photon emission computed tomography (SPECT)/near infrared fluorescence (NIRF) imaging probe (99m)Tc-PC-1007 is described. (99m)Tc-PC-1007 exhibited preferential accumulation in human breast cancer MCF-7 cells. Cancer-specific SPECT/CT and NIRF imaging of (99m)Tc-PC-1007 was performed in a breast cancer xenograft model. The probe uptake ratio of tumor to control (spinal cord) was calculated to be 4.02±0.56 at 6 h post injection (pi) and 8.50±1.41 at 20 h pi (P<0.0001). Pharmacokinetic parameters such as blood clearance and organ distribution were assessed.
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Affiliation(s)
- Yi Zhang
- Department of Radiology and Medical Imaging, University of Virginia, Charlottesville, VA 22908, USA
| | - Li Xiao
- Department of Radiology and Medical Imaging, University of Virginia, Charlottesville, VA 22908, USA
| | - Kosta Popovic
- Department of Radiology and Medical Imaging, University of Virginia, Charlottesville, VA 22908, USA
| | - Xiuzhen Xie
- Department of Radiology and Medical Imaging, University of Virginia, Charlottesville, VA 22908, USA
| | - Mahendra D. Chordia
- Department of Radiology and Medical Imaging, University of Virginia, Charlottesville, VA 22908, USA
| | - Leland W.K. Chung
- Uro-Oncology Research, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, California 90048, USA
| | - Mark B. Williams
- Department of Radiology and Medical Imaging, University of Virginia, Charlottesville, VA 22908, USA
| | - Wei Yue
- Department of Endocrinology and Metabolism, University of Virginia, Charlottesville, VA 22908, USA
| | - Dongfeng Pan
- Department of Radiology and Medical Imaging, University of Virginia, Charlottesville, VA 22908, USA
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Yang C, Hou V, Nelson LY, Seibel EJ. Mitigating fluorescence spectral overlap in wide-field endoscopic imaging. JOURNAL OF BIOMEDICAL OPTICS 2013; 18:86012. [PMID: 23966226 PMCID: PMC3767456 DOI: 10.1117/1.jbo.18.8.086012] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
The number of molecular species suitable for multispectral fluorescence imaging is limited due to the overlap of the emission spectra of indicator fluorophores, e.g., dyes and nanoparticles. To remove fluorophore emission cross-talk in wide-field multispectral fluorescence molecular imaging, we evaluate three different solutions: (1) image stitching, (2) concurrent imaging with cross-talk ratio subtraction algorithm, and (3) frame-sequential imaging. A phantom with fluorophore emission cross-talk is fabricated, and a 1.2-mm ultrathin scanning fiber endoscope (SFE) is used to test and compare these approaches. Results show that fluorophore emission cross-talk could be successfully avoided or significantly reduced. Near term, the concurrent imaging method of wide-field multispectral fluorescence SFE is viable for early stage cancer detection and localization in vivo. Furthermore, a means to enhance exogenous fluorescence target-to-background ratio by the reduction of tissue autofluorescence background is demonstrated.
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Affiliation(s)
- Chenying Yang
- University of Washington, Department of Bioengineering, Seattle, Washington 98195, USA.
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Uppal T, Bhupathiraju NDK, Vicente MGH. Synthesis and cellular properties of Near-IR BODIPY–PEG and carbohydrate conjugates. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.03.082] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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50
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Yang C, Hou V, Nelson LY, Seibel EJ. Color-matched and fluorescence-labeled esophagus phantom and its applications. JOURNAL OF BIOMEDICAL OPTICS 2013; 18:26020. [PMID: 23403908 PMCID: PMC3569733 DOI: 10.1117/1.jbo.18.2.026020] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
We developed a stable, reproducible three-dimensional optical phantom for the evaluation of a wide-field endoscopic molecular imaging system. This phantom mimicked a human esophagus structure with flexibility to demonstrate body movements. At the same time, realistic visual appearance and diffuse spectral reflectance properties of the tissue were simulated by a color matching methodology. A photostable dye-in-polymer technology was applied to represent biomarker probed "hot-spot" locations. Furthermore, fluorescent target quantification of the phantom was demonstrated using a 1.2 mm ultrathin scanning fiber endoscope with concurrent fluorescence-reflectance imaging.
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Affiliation(s)
- Chenying Yang
- University of Washington, Department of Bioengineering, 204 Fluke Hall, 4000 Mason Road, Seattle, WA 98195, USA.
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