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van der Laan JJH, van der Waaij AM, Gabriëls RY, Festen EAM, Dijkstra G, Nagengast WB. Endoscopic imaging in inflammatory bowel disease: current developments and emerging strategies. Expert Rev Gastroenterol Hepatol 2021; 15:115-126. [PMID: 33094654 DOI: 10.1080/17474124.2021.1840352] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
INTRODUCTION Developments in enhanced and magnified endoscopy have signified major advances in endoscopic imaging of ileocolonic pathology in inflammatory bowel disease (IBD). Artificial intelligence is increasingly being used to augment the benefits of these advanced techniques. Nevertheless, treatment of IBD patients is frustrated by high rates of non-response to therapy, while delayed detection and failures to detect neoplastic lesions impede successful surveillance. A possible solution is offered by molecular imaging, which adds functional imaging data to mucosal morphology assessment through visualizing biological parameters. Other label-free modalities enable visualization beyond the mucosal surface without the need of tracers. AREAS COVERED A literature search up to May 2020 was conducted in PubMed/MEDLINE in order to find relevant articles that involve the (pre-)clinical application of high-definition white light endoscopy, chromoendoscopy, artificial intelligence, confocal laser endomicroscopy, endocytoscopy, molecular imaging, optical coherence tomography, and Raman spectroscopy in IBD. EXPERT OPINION Enhanced and magnified endoscopy have enabled an improved assessment of the ileocolonic mucosa. Implementing molecular imaging in endoscopy could overcome the remaining clinical challenges by giving practitioners a real-time in vivo view of targeted biomarkers. Label-free modalities could help optimize the endoscopic assessment of mucosal healing and dysplasia detection in IBD patients.
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Affiliation(s)
- Jouke J H van der Laan
- Department of Gastroenterology and Hepatology, University Medical Centre Groningen , Groningen, The Netherlands
| | - Anne M van der Waaij
- Department of Gastroenterology and Hepatology, University Medical Centre Groningen , Groningen, The Netherlands
| | - Ruben Y Gabriëls
- Department of Gastroenterology and Hepatology, University Medical Centre Groningen , Groningen, The Netherlands
| | - Eleonora A M Festen
- Department of Gastroenterology and Hepatology, University Medical Centre Groningen , Groningen, The Netherlands
| | - Gerard Dijkstra
- Department of Gastroenterology and Hepatology, University Medical Centre Groningen , Groningen, The Netherlands
| | - Wouter B Nagengast
- Department of Gastroenterology and Hepatology, University Medical Centre Groningen , Groningen, The Netherlands
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Mendive‐Tapia L, Wang J, Vendrell M. Fluorescent cyclic peptides for cell imaging. Pept Sci (Hoboken) 2020. [DOI: 10.1002/pep2.24181] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
| | - Jinling Wang
- Centre for Inflammation Research The University of Edinburgh Edinburgh UK
| | - Marc Vendrell
- Centre for Inflammation Research The University of Edinburgh Edinburgh UK
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Abstract
The spatiotemporal determination of molecular events and cells is important for understanding disease processes, especially in oncology, and thus for the development of novel treatments. Equally important is the knowledge of the biodistribution, localization, and targeted accumulation of novel therapies as well as monitoring of tumor growth and therapeutic response. Optical imaging provides an ideal versatile platform for imaging of all these problems and questions.
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Jeong S, Song J, Lee W, Ryu YM, Jung Y, Kim SY, Kim K, Hong SC, Myung SJ, Kim S. Cancer-Microenvironment-Sensitive Activatable Quantum Dot Probe in the Second Near-Infrared Window. NANO LETTERS 2017; 17:1378-1386. [PMID: 28125238 DOI: 10.1021/acs.nanolett.6b04261] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Recent technological advances have expanded fluorescence (FL) imaging into the second near-infrared region (NIR-II; wavelength = 1000-1700 nm), providing high spatial resolution through deep tissues. However, bright and compact fluorophores are rare in this region, and sophisticated control over NIR-II probes has not been fully achieved yet. Herein, we report an enzyme-activatable NIR-II probe that exhibits FL upon matrix metalloprotease activity in tumor microenvironment. Bright and stable PbS/CdS/ZnS core/shell/shell quantum dots (QDs) were synthesized as a model NIR-II fluorophore, and activatable modulators were attached to exploit photoexcited electron transfer (PET) quenching. The quasi type-II QD band alignment allowed rapid and effective FL modulations with the compact surface ligand modulator that contains methylene blue PET quencher. The modulator was optimized to afford full enzyme accessibility and high activation signal surge upon the enzyme activity. Using a colon cancer mouse model, the probe demonstrated selective FL activation at tumor sites with 3-fold signal enhancement in 10 min. Optical phantom experiments confirmed the advantages of the NIR-II probe over conventional dyes in the first near-infrared region.
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Affiliation(s)
| | | | | | - Yeon Mi Ryu
- Asan Institute for Life Sciences, Asan Medical Center , 88 Olympic-ro, 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea
| | | | - Sang-Yeob Kim
- Asan Institute for Life Sciences, Asan Medical Center , 88 Olympic-ro, 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea
- Department of Convergence Medicine, University of Ulsan College of Medicine , 88 Olympic-ro, 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea
| | - Kangwook Kim
- Department of Civil and Environmental Engineering, Korea Army Academy at Young-cheon , Yeongcheon-si, Gyeongsangbuk-do South Korea
| | | | - Seung Jae Myung
- Asan Institute for Life Sciences, Asan Medical Center , 88 Olympic-ro, 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea
- Department of Convergence Medicine, University of Ulsan College of Medicine , 88 Olympic-ro, 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine , 88 Olympic-ro, 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea
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Anani T, Panizzi P, David AE. Nanoparticle-based probes to enable noninvasive imaging of proteolytic activity for cancer diagnosis. Nanomedicine (Lond) 2016; 11:2007-22. [PMID: 27465386 PMCID: PMC5941711 DOI: 10.2217/nnm-2016-0027] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Accepted: 05/23/2016] [Indexed: 12/20/2022] Open
Abstract
Proteases play a key role in tumor biology, with high expression levels often correlating with poor prognosis for cancer patients - making them excellent disease markers for tumor diagnosis. Despite their significance, quantifying proteolytic activity in vivo remains a challenge. Nanoparticles, with their ability to serve as scaffolds having unique chemical, optical and magnetic properties, offer the promise of merging diagnostic medicine with material engineering. Such nanoparticles can interact preferentially with proteases enriched in tumors, providing the ability to assess disease state in a noninvasive and spatiotemporal manner. We review recent advances in the development of nanoparticles for imaging and quantification of proteolytic activity in tumor models, and prognosticate future advancements.
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Affiliation(s)
- Tareq Anani
- Department of Chemical Engineering, Samuel Ginn College of Engineering, 212 Ross Hall, Auburn University, Auburn, AL 36849, USA
| | - Peter Panizzi
- Department of Drug Discovery & Development, Harrison School of Pharmacy, 4306 Walker Building, Auburn University, Auburn, AL 36849, USA
| | - Allan E. David
- Department of Chemical Engineering, Samuel Ginn College of Engineering, 212 Ross Hall, Auburn University, Auburn, AL 36849, USA
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Liu Q, Pan D, Cheng C, Zhang D, Zhang A, Wang L, Jiang H, Wang T, Liu H, Xu Y, Yang R, Chen F, Yang M, Zuo C. Development of a Novel PET Tracer [18F]AlF-NOTA-C6 Targeting MMP2 for Tumor Imaging. PLoS One 2015; 10:e0141668. [PMID: 26540114 PMCID: PMC4634933 DOI: 10.1371/journal.pone.0141668] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Accepted: 10/12/2015] [Indexed: 12/28/2022] Open
Abstract
Background and Objective The overexpression of gelatinases, that is, matrix metalloproteinase MMP2 and MMP9, has been associated with tumor progression, invasion, and metastasis. To image MMP2 in tumors, we developed a novel ligand termed [18F]AlF-NOTA-C6, with consideration that: c(KAHWGFTLD)NH2 (herein, C6) is a selective gelatinase inhibitor; Cy5.5-C6 has been visualized in many in vivo tumor models; positron emission tomography (PET) has a higher detection sensitivity and a wider field of view than optical imaging; fluorine-18 (18F) is the optimal PET radioisotope, and the creation of a [18F]AlF-peptide complex is a simple procedure. Methods C6 was conjugated to the bifunctional chelator NOTA (1, 4, 7-triazacyclononanetriacetic acid) for radiolabeling [18F]AlF conjugation. The MMP2-binding characteristics and tumor-targeting efficacy of [18F]AlF-NOTA-C6 were tested in vitro and in vivo. Results The non-decay corrected yield of [18F]AlF-NOTA-C6 was 46.2–64.2%, and the radiochemical purity exceeded 95%. [18F]AlF-NOTA-C6 was favorably retained in SKOV3 and PC3 cells, determined by cell uptake. Using NOTA-C6 as a competitive ligand, the uptake of [18F]AlF-NOTA-C6 in SKOV3 cells decreased in a dose-dependent manner. In biodistribution and PET imaging studies, higher radioactivity concentrations were observed in tumors. Pre-injection of C6 caused a marked reduction in tumor tissue uptake. Immunohistochemistry showed MMP2 in tumor tissues. Conclusions [18F]AlF-NOTA-C6 was easy to synthesize and has substantial potential as an imaging agent that targets MMP2 in tumors.
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Affiliation(s)
- Qinghua Liu
- Department of Nuclear Medicine, Changhai Hospital, the Second Military Medical University, Shanghai, 200433, China
- * E-mail: (QHL); (MY); (CJZ)
| | - Donghui Pan
- Jiangsu Institute of Nuclear Medicine, Key Laboratory of Nuclear Medicine, Ministry of Health, Wuxi, 214063, China
| | - Chao Cheng
- Department of Nuclear Medicine, Changhai Hospital, the Second Military Medical University, Shanghai, 200433, China
| | - Dazhi Zhang
- Department of Organic Chemistry, School of Pharmacy, Second Military Medical University, Shanghai, 200433, China
| | - Anyu Zhang
- Department of Nuclear Medicine, Changhai Hospital, the Second Military Medical University, Shanghai, 200433, China
| | - Lizhen Wang
- Jiangsu Institute of Nuclear Medicine, Key Laboratory of Nuclear Medicine, Ministry of Health, Wuxi, 214063, China
| | - Hongdie Jiang
- Department of Nuclear Medicine, Changhai Hospital, the Second Military Medical University, Shanghai, 200433, China
| | - Tao Wang
- Department of Nuclear Medicine, Changhai Hospital, the Second Military Medical University, Shanghai, 200433, China
| | - Hongrui Liu
- Department of Pharmacology, School of Pharmacy, Fudan University, Shanghai, 201203, China
| | - Yuping Xu
- Jiangsu Institute of Nuclear Medicine, Key Laboratory of Nuclear Medicine, Ministry of Health, Wuxi, 214063, China
| | - Runlin Yang
- Jiangsu Institute of Nuclear Medicine, Key Laboratory of Nuclear Medicine, Ministry of Health, Wuxi, 214063, China
| | - Fei Chen
- Jiangsu Institute of Nuclear Medicine, Key Laboratory of Nuclear Medicine, Ministry of Health, Wuxi, 214063, China
| | - Min Yang
- Jiangsu Institute of Nuclear Medicine, Key Laboratory of Nuclear Medicine, Ministry of Health, Wuxi, 214063, China
- * E-mail: (QHL); (MY); (CJZ)
| | - Changjing Zuo
- Department of Nuclear Medicine, Changhai Hospital, the Second Military Medical University, Shanghai, 200433, China
- * E-mail: (QHL); (MY); (CJZ)
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Liu Q, Pan D, Cheng C, Zhang A, Ma C, Wang L, Zhang D, Liu H, Jiang H, Wang T, Xu Y, Yang R, Chen F, Yang M, Zuo C. Targeting of MMP2 activity in malignant tumors with a 68Ga-labeled gelatinase inhibitor cyclic peptide. Nucl Med Biol 2015; 42:939-44. [PMID: 26344861 DOI: 10.1016/j.nucmedbio.2015.07.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Revised: 07/30/2015] [Accepted: 07/31/2015] [Indexed: 12/28/2022]
Abstract
INTRODUCTION Elevated levels of gelatinases (matrix metalloproteinases 2/9, i.e., MMP2 and MMP9) are associated with tumor progression, invasion and metastasis, so these enzymes are potential targets for tumor imaging. The peptide c(KAHWGFTLD)NH2 (herein, C6) is a selective gelatinase inhibitor. Cy5.5-C6 has been visualized in many tumor models in vivo. However, the sensitivity and penetrance of optical imaging are poor. It is well known that positron emission tomography (PET) has a high detection sensitivity and Gallium-68 ((68)Ga) is an optimal PET radioisotope. Thus, in the present study, we developed a novel ligand, (68)Ga-NOTA-C6, to image MMP2 activity in tumors. METHODS C6 was conjugated with the bifunctional chelator NOTA (1,4,7-triazacyclononanetriacetic acid) and labeled with (68)Ga. In vitro uptake and binding analyses were performed by using SKOV3 cell lines, coincubating with or without the MMP inhibitor doxycycline. The biodistribution and PET imaging were conducted on SKOV3 ovarian tumor models. MMP2 expression in tumors was analyzed by immunohistochemistry (IHC). RESULTS The non-decay corrected yield of (68)Ga-NOTA-C6 was 61.8%-63.3%. (68)Ga-NOTA-C6 was stable in both physiological saline and human serum. The uptake of (68)Ga-NOTA-C6 in SKOV3 cells increased with time, and could be blocked by doxycycline in a dose dependent manner. The results of biodistribution and PET imaging showed that high radioactivity concentrations of (68)Ga-NOTA-C6 occurred in tumors. The ratios of tumor to blood, muscle and ovary and oviduct at 30, 60 and 120min p.i. were 2.78±0.54, 3.86±0.65, 0.48±0.14, and 1.73±0.36, 10.31±3.12, 1.22±0.10, and 2.50±0.78, 7.03±1.85, 0.97±0.25, respectively. The tracer was excreted mainly through the renal system, as evidenced by high levels of radioactivity in the kidneys. These data support the possibility of using (68)Ga-NOTA-C6 in PET to visualize tumors that overexpress MMP2. CONCLUSIONS (68)Ga-NOTA-C6 is a potential radiopharmaceutical for the imaging of in vivo MMP2 activity in tumors.
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Affiliation(s)
- Qinghua Liu
- Department of Nuclear Medicine, Changhai Hospital, the Second Military Medical University, Shanghai, China, 200433.
| | - Donghui Pan
- Jiangsu Institute of Nuclear Medicine, Key Laboratory of Nuclear Medicine, Ministry of Health, Wuxi, Jiangsu, China, 214063
| | - Chao Cheng
- Department of Nuclear Medicine, Changhai Hospital, the Second Military Medical University, Shanghai, China, 200433
| | - Anyu Zhang
- Department of Nuclear Medicine, Changhai Hospital, the Second Military Medical University, Shanghai, China, 200433
| | - Chao Ma
- Department of Nuclear Medicine, Zhongshan Hospital, Xiamen University, Xiamen, Fujian, China, 361004
| | - Lizhen Wang
- Jiangsu Institute of Nuclear Medicine, Key Laboratory of Nuclear Medicine, Ministry of Health, Wuxi, Jiangsu, China, 214063
| | - Dazhi Zhang
- Department of Organic Chemistry, School of Pharmacy, the Second Military Medical University, Shanghai, China, 200433
| | - Hongrui Liu
- Department of Pharmacology, School of Pharmacy, Fudan University, Shanghai, China, 201203
| | - Hongdie Jiang
- Department of Nuclear Medicine, Changhai Hospital, the Second Military Medical University, Shanghai, China, 200433
| | - Tao Wang
- Department of Nuclear Medicine, Changhai Hospital, the Second Military Medical University, Shanghai, China, 200433
| | - Yuping Xu
- Jiangsu Institute of Nuclear Medicine, Key Laboratory of Nuclear Medicine, Ministry of Health, Wuxi, Jiangsu, China, 214063
| | - Runlin Yang
- Jiangsu Institute of Nuclear Medicine, Key Laboratory of Nuclear Medicine, Ministry of Health, Wuxi, Jiangsu, China, 214063
| | - Fei Chen
- Jiangsu Institute of Nuclear Medicine, Key Laboratory of Nuclear Medicine, Ministry of Health, Wuxi, Jiangsu, China, 214063
| | - Min Yang
- Jiangsu Institute of Nuclear Medicine, Key Laboratory of Nuclear Medicine, Ministry of Health, Wuxi, Jiangsu, China, 214063.
| | - Changjing Zuo
- Department of Nuclear Medicine, Changhai Hospital, the Second Military Medical University, Shanghai, China, 200433.
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Cheng D, Zou W, Li X, Xiu Y, Tan H, Shi H, Yang X. Preparation and Evaluation of 99mTc-labeled anti-CD11b Antibody Targeting Inflammatory Microenvironment for Colon Cancer Imaging. Chem Biol Drug Des 2014; 85:696-701. [PMID: 25346241 DOI: 10.1111/cbdd.12459] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2014] [Revised: 09/20/2014] [Accepted: 10/12/2014] [Indexed: 12/16/2022]
Abstract
CD11b, an active constituent of innate immune response highly expressed in myeloid-derived suppressor cells (MDSCs), can be used as a marker of inflammatory microenvironment, particularly in tumor tissues. In this research, we aimed to fabricate a (99m)Tc-labeled anti-CD11b antibody as a probe for CD11b(+) myeloid cells in colon cancer imaging with single-photon emission computed tomography (SPECT). In situ murine colon tumor model was established in histidine decarboxylase knockout (Hdc(-/-)) mice by chemicals induction. (99m)Tc-labeled anti-CD11b was obtained with labeling yields of over 30% and radiochemical purity of over 95%. Micro-SPECT/CT scans were performed at 6 h post injection to investigate biodistributions and targeting of the probe. In situ colonic neoplasma as small as 3 mm diameters was clearly identified by imaging; after dissection of the animal, anti-CD11b immunofluorescence staining was performed to identify infiltration of CD11b+ MDSCs in microenvironment of colonic neoplasms. In addition, the images displayed intense signal from bone marrow and spleen, which indicated the origin and migration of CD11b(+) MDSCs in vivo, and these results were further proved by flow cytometry analysis. Therefore, (99m)Tc-labeled anti-CD11b SPECT displayed the potential to facilitate the diagnosis of colon tumor in very early stage via detection of inflammatory microenvironment.
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Affiliation(s)
- Dengfeng Cheng
- Department of Nuclear Medicine, Zhongshan Hospital, Fudan University, Shanghai, 200032, China.,Shanghai Institute of Medical Imaging, Shanghai, 200032, China
| | - Weihong Zou
- Department of Pharmacy, The First Affiliated Hospital, University of South China, Hengyang, Hunan, 421001, China
| | - Xiao Li
- Department of Nuclear Medicine, Zhongshan Hospital, Fudan University, Shanghai, 200032, China.,Shanghai Institute of Medical Imaging, Shanghai, 200032, China
| | - Yan Xiu
- Department of Nuclear Medicine, Zhongshan Hospital, Fudan University, Shanghai, 200032, China.,Shanghai Institute of Medical Imaging, Shanghai, 200032, China
| | - Hui Tan
- Department of Nuclear Medicine, Zhongshan Hospital, Fudan University, Shanghai, 200032, China.,Shanghai Institute of Medical Imaging, Shanghai, 200032, China
| | - Hongcheng Shi
- Department of Nuclear Medicine, Zhongshan Hospital, Fudan University, Shanghai, 200032, China.,Shanghai Institute of Medical Imaging, Shanghai, 200032, China
| | - Xiangdong Yang
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, FudanUniversity, Shanghai, 200032, China
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Chi C, Du Y, Ye J, Kou D, Qiu J, Wang J, Tian J, Chen X. Intraoperative imaging-guided cancer surgery: from current fluorescence molecular imaging methods to future multi-modality imaging technology. Theranostics 2014; 4:1072-84. [PMID: 25250092 PMCID: PMC4165775 DOI: 10.7150/thno.9899] [Citation(s) in RCA: 252] [Impact Index Per Article: 25.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2014] [Accepted: 07/31/2014] [Indexed: 12/20/2022] Open
Abstract
Cancer is a major threat to human health. Diagnosis and treatment using precision medicine is expected to be an effective method for preventing the initiation and progression of cancer. Although anatomical and functional imaging techniques such as radiography, computed tomography (CT), magnetic resonance imaging (MRI) and positron emission tomography (PET) have played an important role for accurate preoperative diagnostics, for the most part these techniques cannot be applied intraoperatively. Optical molecular imaging is a promising technique that provides a high degree of sensitivity and specificity in tumor margin detection. Furthermore, existing clinical applications have proven that optical molecular imaging is a powerful intraoperative tool for guiding surgeons performing precision procedures, thus enabling radical resection and improved survival rates. However, detection depth limitation exists in optical molecular imaging methods and further breakthroughs from optical to multi-modality intraoperative imaging methods are needed to develop more extensive and comprehensive intraoperative applications. Here, we review the current intraoperative optical molecular imaging technologies, focusing on contrast agents and surgical navigation systems, and then discuss the future prospects of multi-modality imaging technology for intraoperative imaging-guided cancer surgery.
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Stawarski M, Stefaniuk M, Wlodarczyk J. Matrix metalloproteinase-9 involvement in the structural plasticity of dendritic spines. Front Neuroanat 2014; 8:68. [PMID: 25071472 PMCID: PMC4091410 DOI: 10.3389/fnana.2014.00068] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2014] [Accepted: 06/25/2014] [Indexed: 01/01/2023] Open
Abstract
Dendritic spines are the locus for excitatory synaptic transmission in the brain and thus play a major role in neuronal plasticity. The ability to alter synaptic connections includes volumetric changes in dendritic spines that are driven by scaffolds created by the extracellular matrix (ECM). Here, we review the effects of the proteolytic activity of ECM proteases in physiological and pathological structural plasticity. We use matrix metalloproteinase-9 (MMP-9) as an example of an ECM modifier that has recently emerged as a key molecule in regulating the morphology and dysmorphology of dendritic spines that underlie synaptic plasticity and neurological disorders, respectively. We summarize the influence of MMP-9 on the dynamic remodeling of the ECM via the cleavage of extracellular substrates. We discuss its role in the formation, modification, and maintenance of dendritic spines in learning and memory. Finally, we review research that implicates MMP-9 in aberrant synaptic plasticity and spine dysmorphology in neurological disorders, with a focus on morphological abnormalities of dendritic protrusions that are associated with epilepsy.
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Affiliation(s)
- Michal Stawarski
- Laboratory of Cell Biophysics, Department of Molecular and Cellular Neurobiology, Nencki Institute of Experimental Biology Warsaw, Mazowieckie, Poland
| | - Marzena Stefaniuk
- Laboratory of Neurobiology, Department of Molecular and Cellular Neurobiology, Nencki Institute of Experimental Biology Warsaw, Mzowieckie, Poland
| | - Jakub Wlodarczyk
- Laboratory of Cell Biophysics, Department of Molecular and Cellular Neurobiology, Nencki Institute of Experimental Biology Warsaw, Mazowieckie, Poland
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Yi X, Wang F, Qin W, Yang X, Yuan J. Near-infrared fluorescent probes in cancer imaging and therapy: an emerging field. Int J Nanomedicine 2014; 9:1347-65. [PMID: 24648733 PMCID: PMC3956734 DOI: 10.2147/ijn.s60206] [Citation(s) in RCA: 154] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Near-infrared fluorescence (NIRF) imaging is an attractive modality for early cancer detection with high sensitivity and multi-detection capability. Due to convenient modification by conjugating with moieties of interests, NIRF probes are ideal candidates for cancer targeted imaging. Additionally, the combinatory application of NIRF imaging and other imaging modalities that can delineate anatomical structures extends fluorometric determination of biomedical information. Moreover, nanoparticles loaded with NIRF dyes and anticancer agents contribute to the synergistic management of cancer, which integrates the advantage of imaging and therapeutic functions to achieve the ultimate goal of simultaneous diagnosis and treatment. Appropriate probe design with targeting moieties can retain the original properties of NIRF and pharmacokinetics. In recent years, great efforts have been made to develop new NIRF probes with better photostability and strong fluorescence emission, leading to the discovery of numerous novel NIRF probes with fine photophysical properties. Some of these probes exhibit tumoricidal activities upon light radiation, which holds great promise in photothermal therapy, photodynamic therapy, and photoimmunotherapy. This review aims to provide a timely and concise update on emerging NIRF dyes and multifunctional agents. Their potential uses as agents for cancer specific imaging, lymph node mapping, and therapeutics are included. Recent advances of NIRF dyes in clinical use are also summarized.
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Affiliation(s)
- Xiaomin Yi
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China
| | - Fuli Wang
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China
| | - Weijun Qin
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China
| | - Xiaojian Yang
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China
| | - Jianlin Yuan
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China
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Pengjun Z, Xinyu W, Feng G, Xinxin D, Yulan L, Juan L, Xingwang J, Zhennan D, Yaping T. Multiplexed cytokine profiling of serum for detection of colorectal cancer. Future Oncol 2014; 9:1017-27. [PMID: 23837764 DOI: 10.2217/fon.13.71] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
AIM To evaluate the concentrations of eight cytokines in order to identify potential biomarkers for assisting in the detection of colorectal cancer. MATERIALS & METHODS The concentrations of IFN-γ, IL-10, IL-6, IL-8, TNF-α, MMP-2, MMP-7 and MMP-9 were detected in the sera of 69 healthy controls, 93 colorectal adenoma patients and 149 colorectal cancer (CRC) patients. RESULTS Multivariate logistic regression analyses, which included CEA, CA199, IL-8, TNF-α and MMP-7, were used to evaluate the diagnostic value for differentiating between colorectal adenoma and CRC. The area under the curve was 0.945 (95% CI: 0.909-0.981). The sensitivity and specificity were 85.86 and 96.78%, respectively. Compared with the conventional biomarkers CEA and CA199, multivariate logistic regression showed significant improvement. CONCLUSION Our data demonstrated that testing using a panel of three serum cytokines, CEA and CA199 may have strong potential to assist in the detection of CRC.
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Affiliation(s)
- Zhang Pengjun
- Department of Clinical Biochemistry, State Key Laboratory of Kidney Disease, Chinese PLA General Hospital, Fuxin Road #28, Beijing, China
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Zeug A, Stawarski M, Bieganska K, Korotchenko S, Wlodarczyk J, Dityatev A, Ponimaskin E. Current microscopic methods for the neural ECM analysis. PROGRESS IN BRAIN RESEARCH 2014; 214:287-312. [PMID: 25410363 DOI: 10.1016/b978-0-444-63486-3.00013-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The extracellular matrix (ECM) occupies the space between both neurons and glial cells and thus provides a microenvironment that regulates multiple aspects of neural activities. Because of the vital role of ECM as a natural environment of cells in vivo, there is a growing interest to develop methodology allowing for the detailed structural and functional analyses of ECM. In this chapter, we provide the detailed overview of current microscopic methods used for ECM analysis and also describe general labeling strategies for ECM visualization. Since ECM remodeling involves the proteolytic cleavage of ECM, we will also describe current experimental approaches to image the proteolytic reorganization and/or degradation of ECM. The special focus of this chapter is set to the application of Förster resonance energy transfer-based approaches to monitor intracellular and extracellular matrix functions with high spatiotemporal resolution.
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Affiliation(s)
- Andre Zeug
- Cellular Neurophysiology, Hannover Medical School, Hannover, Germany
| | - Michal Stawarski
- Laboratory of Cell Biophysics, Department of Molecular and Cellular Neurobiology, Nencki Institute of Experimental Biology, Warsaw, Poland
| | | | - Svetlana Korotchenko
- Laboratory for Brain Extracellular Matrix Research, University of Nizhny Novgorod, Nizhny Novgorod, Russia; Department of Neuroscience and Brain Technologies, Istituto Italiano di Tecnologia, Genova, Italy; Department of Nanophysics, Istituto Italiano di Tecnologia, Genova, Italy
| | - Jakub Wlodarczyk
- Laboratory of Cell Biophysics, Department of Molecular and Cellular Neurobiology, Nencki Institute of Experimental Biology, Warsaw, Poland
| | - Alexander Dityatev
- Laboratory for Brain Extracellular Matrix Research, University of Nizhny Novgorod, Nizhny Novgorod, Russia; Department of Neuroscience and Brain Technologies, Istituto Italiano di Tecnologia, Genova, Italy; Department of Nanophysics, Istituto Italiano di Tecnologia, Genova, Italy; Deutsches Zentrum für Neurodegenerative Erkrankungen (DZNE), Magdeburg, Germany
| | - Evgeni Ponimaskin
- Cellular Neurophysiology, Hannover Medical School, Hannover, Germany.
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Stawarski M, Rutkowska-Wlodarczyk I, Zeug A, Bijata M, Madej H, Kaczmarek L, Wlodarczyk J. Genetically encoded FRET-based biosensor for imaging MMP-9 activity. Biomaterials 2013; 35:1402-10. [PMID: 24290700 DOI: 10.1016/j.biomaterials.2013.11.033] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2013] [Accepted: 11/11/2013] [Indexed: 01/19/2023]
Abstract
A genetically encoded Förster Resonance Energy Transfer (FRET)-based biosensor that continuously monitors matrix metalloproteinase 9 (MMP-9) activity was developed. MMP-9 is an extracellularly acting endopeptidase with a prominent role in development, learning and memory, cancer metastasis, and stroke. To assess the biological function of the protease, determining the precise kinetics and localization of MMP-9 activity is required. The nontoxic, genetically encoded FRET biosensor presented herein is anchored in the cellular membrane and thus provides an important advantage over currently employed probes. The biosensor allows the study of the proteolytic activity of MMP-9 with high temporal and subcellular resolution at the precise region of MMP-9 action on the cell. The applicability of the biosensor both in vitro and in living cells was demonstrated by ratiometrically analyzing the cleavage of the biosensor by a purified auto-activating mutant of MMP-9 and endogenously secreted protease in cultured tumor and neuronal cells. The precise kinetics of endogenous MMP-9 activity was measured, which demonstrates in a straight-forward manner the applicability of the biosensor concept.
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Affiliation(s)
- Michal Stawarski
- Department of Molecular and Cellular Neurobiology, The Nencki Institute of Experimental Biology, ul. Ludwika Pasteura 3, Warszawa 02-093, Poland
| | - Izabela Rutkowska-Wlodarczyk
- Department of Molecular and Cellular Neurobiology, The Nencki Institute of Experimental Biology, ul. Ludwika Pasteura 3, Warszawa 02-093, Poland
| | - André Zeug
- Department of Cellular Neurophysiology, Hannover Medical School, Carl-Neuberg-Strasse 1, Hannover 30625, Germany
| | - Monika Bijata
- Department of Molecular and Cellular Neurobiology, The Nencki Institute of Experimental Biology, ul. Ludwika Pasteura 3, Warszawa 02-093, Poland
| | - Hubert Madej
- Department of Biophysics, Warsaw University of Life Sciences, ul. Nowoursynowska 166, Warszawa 02-787, Poland; Department of Molecular and Cellular Neurobiology, The Nencki Institute of Experimental Biology, ul. Ludwika Pasteura 3, Warszawa 02-093, Poland
| | - Leszek Kaczmarek
- Department of Molecular and Cellular Neurobiology, The Nencki Institute of Experimental Biology, ul. Ludwika Pasteura 3, Warszawa 02-093, Poland
| | - Jakub Wlodarczyk
- Department of Molecular and Cellular Neurobiology, The Nencki Institute of Experimental Biology, ul. Ludwika Pasteura 3, Warszawa 02-093, Poland.
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