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Kulkarni MB, Reed MS, Cao X, García HA, Ochoa MI, Jiang S, Hasan T, Doyley MM, Pogue BW. Combined dual-channel fluorescence depth sensing of indocyanine green and protoporphyrin IX kinetics in subcutaneous murine tumors. JOURNAL OF BIOMEDICAL OPTICS 2025; 30:S13709. [PMID: 39559531 PMCID: PMC11571966 DOI: 10.1117/1.jbo.30.s1.s13709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2024] [Revised: 10/30/2024] [Accepted: 10/31/2024] [Indexed: 11/20/2024]
Abstract
Significance Fluorescence sensing within tissue is an effective tool for tissue characterization; however, the modality and geometry of the image acquisition can alter the observed signal. Aim We introduce a novel optical fiber-based system capable of measuring two fluorescent contrast agents through 2 cm of tissue with simple passive electronic switching between the excitation light, simultaneously acquiring fluorescence and excitation data. The goal was to quantify indocyanine green (ICG) and protoporphyrin IX (PpIX) within tissue, and the sampling method was compared with wide-field surface imaging to contrast the value of deep sensing versus surface imaging. Approach This was achieved by choosing filters for specific wavelengths that were mutually exclusive between ICG and PpIX and coupling these filters to two separate detectors, which allows for direct swapping of the excitation and emission channels by switching the on-time of each excitation laser between 780- and 633-nm wavelengths. Results This system was compared with two non-contact surface imaging systems for both ICG and PpIX, which revealed that the fluorescence depth sensing system was superior in its ability to resolve kinetics differences in deeper tissues that would normally be dominated by strong signals from skin and other surface tissues. Specifically, the system was tested using pancreatic adenocarcinoma tumors injected into murine models, which were imaged at several time points throughout tumor growth to its ∼ 6 - mm diameter. This demonstrated the system's capability to track longitudinal changes in ICG and PpIX kinetics that result from tumor growth and development, with larger tumors showing sluggish uptake and clearance of ICG, which was not observable with surface imaging. Similarly, PpIX was quantified, which showed slower kinetics over different time points, and was further compared with the wide-filed imager. These results were further validated through depth measurements in tissue phantoms and model-based interpretation. Conclusion This fluorescence depth sensing system can be used to sample the interior blood flow characteristics by ICG sensing of tissue as deep as 20 mm into the tissue with sensitivity to kinetics that are superior to surface imaging and may be combined with other imaging modalities such as ultrasound to provide guided deep fluorescence measurements.
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Affiliation(s)
- Madhusudan B. Kulkarni
- University of Wisconsin-Madison, Department of Medical Physics, Madison, Wisconsin, United States
| | - Matthew S. Reed
- University of Wisconsin-Madison, Department of Medical Physics, Madison, Wisconsin, United States
| | - Xu Cao
- University of Wisconsin-Madison, Department of Medical Physics, Madison, Wisconsin, United States
| | - Héctor A. García
- University of Wisconsin-Madison, Department of Medical Physics, Madison, Wisconsin, United States
- CIFICEN (UNCPBA - CICPBA - CONICET), Tandil, Buenos Aires, Argentina
| | - Marien I. Ochoa
- University of Wisconsin-Madison, Department of Medical Physics, Madison, Wisconsin, United States
| | - Shudong Jiang
- Dartmouth College, Thayer School of Engineering, Hanover, New Hampshire, United States
| | - Tayyaba Hasan
- Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, United States
| | - Marvin M. Doyley
- University of Rochester, Department of Electrical and Computer Engineering, Rochester, New York, United States
| | - Brian W. Pogue
- University of Wisconsin-Madison, Department of Medical Physics, Madison, Wisconsin, United States
- Dartmouth College, Thayer School of Engineering, Hanover, New Hampshire, United States
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Uckermann O, Ziegler J, Meinhardt M, Richter S, Schackert G, Eyüpoglu IY, Hijazi MM, Krex D, Juratli TA, Sobottka SB, Galli R. Raman and autofluorescence spectroscopy for in situ identification of neoplastic tissue during surgical treatment of brain tumors. J Neurooncol 2024; 170:543-553. [PMID: 39196481 PMCID: PMC11614956 DOI: 10.1007/s11060-024-04809-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2024] [Accepted: 08/15/2024] [Indexed: 08/29/2024]
Abstract
PURPOSE Raman spectroscopy (RS) is a promising method for brain tumor detection. Near-infrared autofluorescence (AF) acquired during RS provides additional useful information for tumor identification and was investigated in comparison with RS for delineating brain tumors in situ. METHODS Raman spectra were acquired together with AF in situ within the solid tumor and at the tumor border during routine brain tumor surgeries (218 spectra; glioma WHO II-III, n = 6; GBM, n = 10; metastases, n = 10; meningioma, n = 3). Tissue classification for tumor identification in situ was trained on ex vivo data (375 spectra; glioma/GBM patients, n = 20; metastases, n = 11; meningioma, n = 13; and epileptic hippocampi, n = 4). RESULTS Both in situ and ex vivo data showed that AF intensity in brain tumors was lower than that in border regions and normal brain tissue. Moreover, a positive correlation was observed between the AF intensity and the intensity of the Raman band corresponding to lipids at 1437 cm- 1, while a negative correlation was found with the intensity of the protein band at 1260 cm- 1. The classification of in situ AF and RS datasets matched the surgeon's evaluation of tissue type, with correct rates of 0.83 and 0.84, respectively. Similar correct rates were achieved in comparison to histopathology of tissue biopsies resected in selected measurement positions (AF: 0.80, RS: 0.83). CONCLUSIONS Spectroscopy was successfully integrated into existing neurosurgical workflows, and in situ spectroscopic data could be classified based on ex vivo data. RS confirmed its ability to detect brain tumors, while AF emerged as a competitive method for intraoperative tumor delineation.
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Affiliation(s)
- Ortrud Uckermann
- Division of Medical Biology, Department of Psychiatry and Psychotherapy, Faculty of Medicine, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
- Department of Neurosurgery, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Jonathan Ziegler
- Medical Physics and Biomedical Engineering, Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | - Matthias Meinhardt
- Department of Pathology (Neuropathology), Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Sven Richter
- Department of Neurosurgery, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
- Else Kröner Fresenius Center for Digital Health, Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | - Gabriele Schackert
- Department of Neurosurgery, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Ilker Y Eyüpoglu
- Department of Neurosurgery, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Mido M Hijazi
- Department of Neurosurgery, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Dietmar Krex
- Department of Neurosurgery, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Tareq A Juratli
- Department of Neurosurgery, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Stephan B Sobottka
- Department of Neurosurgery, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Roberta Galli
- Medical Physics and Biomedical Engineering, Faculty of Medicine, Technische Universität Dresden, Dresden, Germany.
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Cuadrado CF, Lagos KJ, Stringasci MD, Bagnato VS, Romero MP. Clinical and pre-clinical advances in the PDT/PTT strategy for diagnosis and treatment of cancer. Photodiagnosis Photodyn Ther 2024; 50:104387. [PMID: 39490802 DOI: 10.1016/j.pdpdt.2024.104387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2024] [Revised: 10/16/2024] [Accepted: 10/23/2024] [Indexed: 11/05/2024]
Abstract
Photodynamic therapy (PDT) and photothermal therapy (PTT) have demonstrated great potential to diagnose and combat localized cancers. As a matter of fact, these techniques are less invasive and have fewer side effects than traditional cancer treatments like surgery, chemotherapy or radiotherapy. This review summarizes the clinical progress in the theranostics (diagnosis and treatment) of various types of regional cancers using these two light stimuli techniques, PDT and PTT. Therefore, clinical advances in cancer diagnosis based on PDT are detailed, including fluorescence-guided PDT for intraoperative cancer detection, optical coherence tomography (OCT)-guided PDT for early cancer detection, and imaging by magnetic resonance imaging (MRI) or computed tomography (CT) assisted through PDT/PTT. Moreover, clinical studies of breast, prostate, skin, gynecologic, head, neck and other varieties of cancer have been addressed to compare the main conditions of these treatments. This work also discussed the principal advantages and drawbacks of PDT and PTT in tumor targeting and cancer therapy. Finally, the usage of nanoparticles as photosensitizers (PSs) and photothermal agents (PAs) have been analyzed. In this manner, the authors have compiled relevant updated studies so that researchers interested in these areas can access it speedily.
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Affiliation(s)
| | - Karina J Lagos
- New Materials Laboratory, Department of Materials, National Polytechnic School, Quito, Ecuador
| | | | | | - María Paulina Romero
- New Materials Laboratory, Department of Materials, National Polytechnic School, Quito, Ecuador.
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Preziosi A, Cirelli C, Waterhouse D, Privitera L, De Coppi P, Giuliani S. State of the art medical devices for fluorescence-guided surgery (FGS): technical review and future developments. Surg Endosc 2024; 38:6227-6236. [PMID: 39294317 PMCID: PMC11525393 DOI: 10.1007/s00464-024-11236-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2024] [Accepted: 08/29/2024] [Indexed: 09/20/2024]
Abstract
BACKGROUND Medical devices for fluorescence-guided surgery (FGS) are becoming available at a fast pace. The main challenge for surgeons lies in the lack of in-depth knowledge of optical imaging, different technical specifications and poor standardisation, and the selection of the best device based on clinical application. METHODS This manuscript aims to provide an up-to-date description of the commercially available fluorescence imaging platforms by comparing their mode of use, required settings, image types, compatible fluorophores, regulatory approval, and cost. We obtained this information by performing a broad literature search on PubMed and by contacting medical companies directly. The data for this review were collected up to November 2023. RESULTS Thirty-two devices made by 19 medical companies were identified. Ten systems are surgical microscopes, 5 can be used for both open and minimally invasive surgery (MIS), 6 can only be used for open surgery, and 10 only for MIS. One is a fluorescence system available for the Da Vinci robot. Nineteen devices can provide an overlay between fluorescence and white light image. All devices are compatible with Indocyanine Green, the most common fluorescence dye used intraoperatively. There is significant variability in the hardware and software of each device, which resulted in different sensitivity, fluorescence intensity, and image quality. All devices are CE-mark regulated, and 30 were FDA-approved. CONCLUSION There is a prolific market of devices for FGS and healthcare professionals should have basic knowledge of their technical specifications to use it at best for each clinical indication. Standardisation across devices must be a priority in the field of FGS, and it will enhance external validity for future clinical trials in the field.
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Affiliation(s)
- Alessandra Preziosi
- Cancer Section, Developmental Biology and Cancer Programme, UCL Great Ormond Street Institute of Child Health, 30 Guilford Street, London, WC1N 1EH, UK
- Department of Paediatric Surgery, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico Di Milano, Milan, Italy
| | - Cecilia Cirelli
- Cancer Section, Developmental Biology and Cancer Programme, UCL Great Ormond Street Institute of Child Health, 30 Guilford Street, London, WC1N 1EH, UK
- Academic Paediatrics, Imperial College Healthcare NHS Trust, London, UK
| | - Dale Waterhouse
- University College London, Wellcome/EPSRC Centre for Interventional and Surgical Sciences, London, UK
| | - Laura Privitera
- Cancer Section, Developmental Biology and Cancer Programme, UCL Great Ormond Street Institute of Child Health, 30 Guilford Street, London, WC1N 1EH, UK
- University College London, Wellcome/EPSRC Centre for Interventional and Surgical Sciences, London, UK
| | - Paolo De Coppi
- Cancer Section, Developmental Biology and Cancer Programme, UCL Great Ormond Street Institute of Child Health, 30 Guilford Street, London, WC1N 1EH, UK
| | - Stefano Giuliani
- Cancer Section, Developmental Biology and Cancer Programme, UCL Great Ormond Street Institute of Child Health, 30 Guilford Street, London, WC1N 1EH, UK.
- University College London, Wellcome/EPSRC Centre for Interventional and Surgical Sciences, London, UK.
- Great Ormond Street Hospital for Children NHS Foundation Trust, 5th Floor Paul O'Gorman Building, Great Ormond Street, London, WC1N 3JH, UK.
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5
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Shmuylovich L, O'Brien CM, Nwosu K, Achilefu S. Frugal engineering-inspired wearable augmented reality goggle system enables fluorescence-guided cancer surgery. Sci Rep 2024; 14:24402. [PMID: 39420102 PMCID: PMC11487067 DOI: 10.1038/s41598-024-75646-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2024] [Accepted: 10/07/2024] [Indexed: 10/19/2024] Open
Abstract
Disparities in surgical outcomes often result from subjective decisions dictated by surgical training, experience, and available resources. To improve outcomes, surgeons have adopted advancements in robotics, endoscopy, and intra-operative imaging including fluorescence-guided surgery (FGS), which highlights tumors and anatomy in real-time. However, technical, economic, and logistic challenges hinder widespread adoption of FGS beyond high-resource centers. To overcome these impediments, we combined laser diodes, Raspberry Pi cameras and computers, off-the-shelf optical components, and 3D-printed parts to make a battery-powered, compact, dual white light and NIR imaging system that has comparable performance to existing bulkier, pricier, and wall-powered technologies. We combined these components with off-the-shelf augmented reality (AR) glasses to create a fully-wearable fluorescence imaging AR Raspberry Pi-based goggle system (FAR-Pi) and validated performance in a pre-clinical cancer surgery model. Novel device design ensures distance-independent coalignment between real and augmented views. As an open-source, affordable, and adaptable system, FAR-Pi is poised to democratize access to FGS and improve health outcomes worldwide.
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Affiliation(s)
- Leonid Shmuylovich
- Biophotonics Research Center, Department of Radiology, Washington University in Saint Louis School of Medicine, Saint Louis, MO, USA.
- Division of Dermatology, Department of Medicine, Washington University in Saint Louis School of Medicine, Saint Louis, MO, USA.
| | - Christine M O'Brien
- Biophotonics Research Center, Department of Radiology, Washington University in Saint Louis School of Medicine, Saint Louis, MO, USA
- Department of Biomedical Engineering, Washington University in Saint Louis, St. Louis, MO, USA
| | - Karen Nwosu
- Biophotonics Research Center, Department of Radiology, Washington University in Saint Louis School of Medicine, Saint Louis, MO, USA
| | - Samuel Achilefu
- Department of Biomedical Engineering, University of Texas Southwestern Medical Center, Dallas, TX, USA.
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Liu Z, Ali M, Sun Q, Zhang Q, Wei C, Wang Y, Tang D, Li X. Current status and future trends of real-time imaging in gastric cancer surgery: A literature review. Heliyon 2024; 10:e36143. [PMID: 39253259 PMCID: PMC11381608 DOI: 10.1016/j.heliyon.2024.e36143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Revised: 07/23/2024] [Accepted: 08/09/2024] [Indexed: 09/11/2024] Open
Abstract
Technological advances are crucial for the optimization of gastric cancer surgery, and the success of any gastric cancer surgery is based on the correct and precise anatomical determination of the primary tumour and tissue structures. Real-time imaging-guided surgery is showing increasing potential and utility, mainly because it helps to aid intraoperative decision-making. However, intraoperative imaging faces many challenges in the field of gastric cancer. This article summarizes and discusses the following clinical applications of real-time optical imaging and fluorescence-guided surgery for gastric cancer: (1) the potential of quantitative fluorescence imaging in assessing tissue perfusion, (2) vascular navigation and determination of tumour margins, (3) the advantages and limitations of lymph node drainage assessment, and (4) identification of peritoneal metastases. In addition, preclinical study of tumour-targeted fluorescence imaging are discussed.
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Affiliation(s)
- Zhu Liu
- The Yangzhou Clinical Medical College of Nanjing Medical University, Yangzhou, 225001, China
- Northern Jiangsu People's Hospital, Yangzhou, 225001, China
- General Surgery Institute of Yangzhou, Yangzhou University, Yangzhou, 225001, China
- Yangzhou Key Laboratory of Basic and Clinical Transformation of Digestive and Metabolic Diseases, China
| | - Muhammad Ali
- Clinical Medical College, Yangzhou University, Yangzhou, 225001, China
- General Surgery Institute of Yangzhou, Yangzhou University, Yangzhou, 225001, China
- Yangzhou Key Laboratory of Basic and Clinical Transformation of Digestive and Metabolic Diseases, China
| | - Qiannan Sun
- Northern Jiangsu People's Hospital, Yangzhou, 225001, China
- General Surgery Institute of Yangzhou, Yangzhou University, Yangzhou, 225001, China
- Yangzhou Key Laboratory of Basic and Clinical Transformation of Digestive and Metabolic Diseases, China
| | - Qi Zhang
- Clinical Medical College, Yangzhou University, Yangzhou, 225001, China
- Northern Jiangsu People's Hospital, Yangzhou, 225001, China
- General Surgery Institute of Yangzhou, Yangzhou University, Yangzhou, 225001, China
- Yangzhou Key Laboratory of Basic and Clinical Transformation of Digestive and Metabolic Diseases, China
| | - Chen Wei
- Clinical Medical College, Yangzhou University, Yangzhou, 225001, China
- General Surgery Institute of Yangzhou, Yangzhou University, Yangzhou, 225001, China
- Yangzhou Key Laboratory of Basic and Clinical Transformation of Digestive and Metabolic Diseases, China
| | - Yong Wang
- Northern Jiangsu People's Hospital, Yangzhou, 225001, China
- General Surgery Institute of Yangzhou, Yangzhou University, Yangzhou, 225001, China
- Yangzhou Key Laboratory of Basic and Clinical Transformation of Digestive and Metabolic Diseases, China
| | - Dong Tang
- Clinical Medical College, Yangzhou University, Yangzhou, 225001, China
- Northern Jiangsu People's Hospital, Yangzhou, 225001, China
- General Surgery Institute of Yangzhou, Yangzhou University, Yangzhou, 225001, China
- Yangzhou Key Laboratory of Basic and Clinical Transformation of Digestive and Metabolic Diseases, China
| | - Xin Li
- Northern Jiangsu People's Hospital, Yangzhou, 225001, China
- Department of Pharmacy, Clinical Medical College, Yangzhou University, Northern Jiangsu People's Hospital, Yangzhou, China
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Morikawa T, Shibahara T, Takano M. Fluorescence Visualization-Guided Surgery Improves Local Control for Mandibular Squamous Cell Carcinoma. J Oral Maxillofac Surg 2024:S0278-2391(24)00741-9. [PMID: 39243799 DOI: 10.1016/j.joms.2024.08.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 08/09/2024] [Accepted: 08/14/2024] [Indexed: 09/09/2024]
Abstract
BACKGROUND Local recurrence is common in mandibular squamous cell carcinoma (MSCC). Fluorescence visualization is a noninvasive technology that can detect oral epithelial dysplasia around MSCC, and it can potentially reduce local recurrence. PURPOSE The purpose of this study was to measure and compare local control (LC) between fluorescence visualization-guided surgery (FVS) and conventional surgery for patients with Stages I or II MSCC. STUDY DESIGN, SETTING, SAMPLE This retrospective cohort study was conducted at Tokyo Dental College, Chiba Hospital, or Chiba Dental Center. The medical records of MSCC patients from 2000 to 2021 were analyzed. Patients from any sex and 18 years of age or older with complete records who received surgery for mandibular SCC in the early stages were included in this study. PREDICTOR VARIABLE The predictor variable was operative treatment and was divided into 2 groups, conventional or FVS. MAIN OUTCOME VARIABLES The outcome variable is 5-year LC defined as no recurrence at or within 20 mm of the surgical site. COVARIATES Covariates included demographic variables of age, sex, clinical and pathological characteristics, forms of resection, lifestyle, and quality of life. ANALYSES Data analysis was performed by carrying out χ2 tests. Survival outcome was performed by the Kaplan-Meier method, which was used to calculate and stratify the log-rank test; P values <.05 indicated statistical significance. RESULTS This study sample was composed of 56 subjects with a mean age of 68.5 years old (standard deviation 13.7), and 33 (58.9%) were female. There were 36 (64.3%) and 20 (35.7%) subjects in the conventional and FVS groups. The characteristics and quality of life did not differ significantly between the 2 groups. Five-year LC with FVS was statistically significantly higher than conventional surgery (P = .04, 94.4 vs 77.2%). Multivariate analysis for LC rate only identified FVS (P = .004; hazard ratio = 0.11, 95% confidence interval = 0.46, 0.88). CONCLUSION AND RELEVANCE On MSCC, LC was 94.4% in FVS versus 77.2% in conventional surgery. For MSCC at stages I and II, FVS was associated with improved LC.
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Affiliation(s)
- Takamichi Morikawa
- Clinical Fellow, Oral and Maxillofacial Surgery, Mistuwadai General Hospital, Chiba-City, Chiba, Japan; Senior Assistant Professor, Department of Oral and Maxillofacial Surgery, Tokyo Dental College, Tokyo, Japan.
| | - Takahiko Shibahara
- Professor Emeritus, Tokyo Dental College, Tokyo, Japan; Visiting Professor, Department of Oral and Maxillofacial Surgery, Tokyo Dental College, Tokyo, Japan
| | - Masayuki Takano
- Visiting Professor, Department of Oral and Maxillofacial Surgery, Tokyo Dental College, Tokyo, Japan
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Dirheimer L, Pons T, François A, Lamy L, Cortese S, Marchal F, Bezdetnaya L. Targeting of 3D oral cancer spheroids by αVβ6 integrin using near-infrared peptide-conjugated IRDye 680. Cancer Cell Int 2024; 24:228. [PMID: 38951897 PMCID: PMC11218202 DOI: 10.1186/s12935-024-03417-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Accepted: 06/22/2024] [Indexed: 07/03/2024] Open
Abstract
BACKGROUND In the treatment of oral cavity cancer, margin status is one of the most critical prognostic factors. Positive margins are associated with higher local recurrence and lower survival rates. Therefore, the universal goal of oral surgical oncology is to achieve microscopically clear margins. Near-infrared fluorescence guided surgery (FGS) could improve surgical resection using fluorescent probes. αVβ6 integrin has shown great potential for cancer targeting due to its overexpression in oral cancers. Red fluorescent contrast agent IRDye 680 coupled with anti-αVβ6 peptide (IRDye-A20) represents an asset to improve FGS of oral cancer. This study investigates the potential of IRDye-A20 as a selective imaging agent in 3D three-dimensional tongue cancer cells. METHODS αVβ6 integrin expression was evaluated by RT-qPCR and Western Blotting in 2D HSC-3 human tongue cancer cells and MRC-5 human fibroblasts. Targeting ability of IRDye-A20 was studied in both cell lines by flow cytometry technique. 3D tumor spheroid models, homotypic (HSC-3) and stroma-enriched heterotypic (HSC-3/MRC-5) spheroids were produced by liquid overlay procedure and further characterized using (immuno)histological and fluorescence-based techniques. IRDye-A20 selectivity was evaluated in each type of spheroids and each cell population. RESULTS αVβ6 integrin was overexpressed in 2D HSC-3 cancer cells but not in MRC-5 fibroblasts and consistently, only HSC-3 were labelled with IRDye-A20. Round shaped spheroids with an average diameter of 400 μm were produced with a final ratio of 55%/45% between HSC-3 and MRC-5 cells, respectively. Immunofluorescence experiments demonstrated an uniform expression of αVβ6 integrin in homotypic spheroid, while its expression was restricted to cancer cells only in heterotypic spheroid. In stroma-enriched 3D model, Cytokeratin 19 and E-cadherin were expressed only by cancer cells while vimentin and fibronectin were expressed by fibroblasts. Using flow cytometry, we demonstrated that IRDye-A20 labeled the whole homotypic spheroid, while in the heterotypic model all cancer cells were highly fluorescent, with a negligible fluorescence in fibroblasts. CONCLUSIONS The present study demonstrated an efficient selective targeting of A20FMDV2-conjugated IRDye 680 in 3D tongue cancer cells stroma-enriched spheroids. Thus, IRDye-A20 could be a promising candidate for the future development of the fluorescence-guided surgery of oral cancers.
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Affiliation(s)
- L Dirheimer
- Centre de Recherche en Automatique de Nancy, Centre National de la Recherche Scientifique, UMR 7039, Université de Lorraine, Vandoeuvre-lès-Nancy, France
| | - T Pons
- ESPCI Paris, LPEM UMR 8213, PSL University, CNRS, Sorbonne University, Paris, France
| | - A François
- Centre de Recherche en Automatique de Nancy, Centre National de la Recherche Scientifique, UMR 7039, Université de Lorraine, Vandoeuvre-lès-Nancy, France
- Research Department, Institut de Cancérologie de Lorraine, 6 avenue de Bourgogne, Vandoeuvre-lès-Nancy, 54519, France
| | - L Lamy
- Centre de Recherche en Automatique de Nancy, Centre National de la Recherche Scientifique, UMR 7039, Université de Lorraine, Vandoeuvre-lès-Nancy, France
- Research Department, Institut de Cancérologie de Lorraine, 6 avenue de Bourgogne, Vandoeuvre-lès-Nancy, 54519, France
| | - S Cortese
- Surgical Department, Institut de Cancérologie de Lorraine, 6 avenue de Bourgogne, Vandoeuvre-lès-Nancy, 54519, France
| | - F Marchal
- Centre de Recherche en Automatique de Nancy, Centre National de la Recherche Scientifique, UMR 7039, Université de Lorraine, Vandoeuvre-lès-Nancy, France
- Surgical Department, Institut de Cancérologie de Lorraine, 6 avenue de Bourgogne, Vandoeuvre-lès-Nancy, 54519, France
| | - L Bezdetnaya
- Centre de Recherche en Automatique de Nancy, Centre National de la Recherche Scientifique, UMR 7039, Université de Lorraine, Vandoeuvre-lès-Nancy, France.
- Research Department, Institut de Cancérologie de Lorraine, 6 avenue de Bourgogne, Vandoeuvre-lès-Nancy, 54519, France.
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Nizioł J, Ossoliński K, Płaza-Altamer A, Kołodziej A, Ossolińska A, Ossoliński T, Krupa Z, Ruman T. Untargeted metabolomics of bladder tissue using liquid chromatography and quadrupole time-of-flight mass spectrometry for cancer biomarker detection. J Pharm Biomed Anal 2024; 240:115966. [PMID: 38217999 DOI: 10.1016/j.jpba.2024.115966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 12/18/2023] [Accepted: 01/04/2024] [Indexed: 01/15/2024]
Abstract
Bladder cancer (BC) ranks among the most common cancers globally, with an increasing occurrence, particularly in developed nations. Utilizing tissue metabolomics presents a promising strategy for identifying potential biomarkers for cancer detection. In this study, we utilized ultra-high-performance liquid chromatography coupled with ultra-high-resolution mass spectrometry (UHPLC-UHRMS), incorporating both C18-silica and HILIC columns, to comprehensively analyze both polar and non-polar metabolite profiles in tissue samples from 99 patients with bladder cancer. By utilizing an untargeted approach with external validation, we identified twenty-five tissue metabolites that hold promise as potential indicators of BC. Furthermore, twenty-five characteristic tissue metabolites that exhibit discriminatory potential across bladder cancer tumor grades, as well as thirty-nine metabolites that display correlations with tumor stages were presented. Receiver operating characteristics analysis demonstrated high predictive power for all types of metabolomics data, with area under the curve (AUC) values exceeding 0.966. Notably, this study represents the first report in which human bladder normal tissues adjacent to cancerous tissues were analyzed using UHPLC-UHRMS. These findings suggest that the metabolite markers identified in this investigation could serve as valuable tools for the detection and monitoring of bladder cancer stages and grades.
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Affiliation(s)
- Joanna Nizioł
- Rzeszów University of Technology, Faculty of Chemistry, 6 Powstańców Warszawy Ave., 35-959 Rzeszów, Poland.
| | - Krzysztof Ossoliński
- Department of Urology, John Paul II Hospital, Grunwaldzka 4 St., 36-100 Kolbuszowa, Poland
| | - Aneta Płaza-Altamer
- Rzeszów University of Technology, Faculty of Chemistry, 6 Powstańców Warszawy Ave., 35-959 Rzeszów, Poland
| | - Artur Kołodziej
- Rzeszów University of Technology, Faculty of Chemistry, 6 Powstańców Warszawy Ave., 35-959 Rzeszów, Poland
| | - Anna Ossolińska
- Department of Urology, John Paul II Hospital, Grunwaldzka 4 St., 36-100 Kolbuszowa, Poland
| | - Tadeusz Ossoliński
- Department of Urology, John Paul II Hospital, Grunwaldzka 4 St., 36-100 Kolbuszowa, Poland
| | - Zuzanna Krupa
- Doctoral School of Engineering and Technical Sciences at the Rzeszów University of Technology, 8 Powstańców Warszawy Ave., 35-959 Rzeszów, Poland
| | - Tomasz Ruman
- Rzeszów University of Technology, Faculty of Chemistry, 6 Powstańców Warszawy Ave., 35-959 Rzeszów, Poland
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10
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Zhang S, Qu Y, Zhang D, Li S, Tang F, Ding A, Hu L, Zhang J, Wang H, Huang K, Li L. Rational Design and Biological Application of Hybrid Fluorophores. Chemistry 2024; 30:e202303208. [PMID: 38038726 DOI: 10.1002/chem.202303208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 11/24/2023] [Accepted: 11/29/2023] [Indexed: 12/02/2023]
Abstract
Fluorophores are considered powerful tools for not only enabling the visualization of cell structures, substructures, and biological processes, but also making for the quantitative and qualitative measurement of various analytes in living systems. However, most fluorophores do not meet the diverse requirements for biological applications in terms of their photophysical and biological properties. Hybridization is an important strategy in molecular engineering that provides fluorophores with complementarity and multifunctionality. This review summarizes the basic strategies of hybridization with four classes of fluorophores, including xanthene, cyanine, coumarin, and BODIPY with a focus on their structure-property relationship (SPR) and biological applications. This review aims to provide rational hybrid ideas for expanding the reservoir of knowledge regarding fluorophores and promoting the development of newly produced fluorophores for applications in the field of life sciences.
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Affiliation(s)
- Shiji Zhang
- Flexible Electronics (IFE, Future Technologies), Xiamen University, Xiamen, 361005, China
| | - Yunwei Qu
- Flexible Electronics (IFE, Future Technologies), Xiamen University, Xiamen, 361005, China
| | - Duoteng Zhang
- Flexible Electronics (IFE, Future Technologies), Xiamen University, Xiamen, 361005, China
| | - Shuai Li
- Flexible Electronics (IFE, Future Technologies), Xiamen University, Xiamen, 361005, China
| | - Fang Tang
- Flexible Electronics (IFE, Future Technologies), Xiamen University, Xiamen, 361005, China
- Future Display Institute in Xiamen, Xiamen, 361005, China
| | - Aixiang Ding
- Flexible Electronics (IFE, Future Technologies), Xiamen University, Xiamen, 361005, China
| | - Lei Hu
- School of Pharmacy, Wannan Medical College, Wuhu, 241002, China
| | - Jin Zhang
- Technical Center of Xiamen Customs, Xiamen, 361001, China
| | - Hui Wang
- Flexible Electronics (IFE, Future Technologies), Xiamen University, Xiamen, 361005, China
- School of Pharmacy, Wannan Medical College, Wuhu, 241002, China
| | - Kai Huang
- Future Display Institute in Xiamen, Xiamen, 361005, China
| | - Lin Li
- Flexible Electronics (IFE, Future Technologies), Xiamen University, Xiamen, 361005, China
- Future Display Institute in Xiamen, Xiamen, 361005, China
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11
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van Dam MA, Crobach ASLP, Boekestijn B, Corssmit EPM, Bonsing BA, Vahrmeijer AL, Mieog JSD. Fluorescence-guided minimally-invasive resection of abdominal paragangliomas using indocyanine green. Sci Rep 2024; 14:3983. [PMID: 38368490 PMCID: PMC10874414 DOI: 10.1038/s41598-024-54718-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Accepted: 02/15/2024] [Indexed: 02/19/2024] Open
Abstract
This retrospective study explores the utility of near-infrared (NIR) fluorescence imaging with indocyanine green (ICG) in enhancing the intraoperative identification and guidance for the resection of abdominal paragangliomas. They can be challenging to detect during minimally invasive surgery, due to their anatomical location, varying size and similar appearance in regard to their surrounding tissue. Patients with suspected abdominal paragangliomas planned for a minimally-invasive resection were included. As part of standard of care they received single intravenous dose of 5 mg ICG after abdominal exploration. NIR fluorescence imaging of the anatomical region of the suspected lesion was performed immediately following intravenous administration, to assess fluorescence signals, intraoperative identification, and histopathological correlation. Out of five resected suspicious lesions, four were imaged with NIR fluorescence, pathology confirming four as paragangliomas, the latter turned out to be an adrenal adenoma. NIR fluorescence identified all four lesions, surpassing the limitations of white-light visualization. Homogeneous fluorescence signals appeared 30-60 s post-ICG administration, which lasted up to 30 min. The study demonstrates the feasibility and potential clinical value of fluorescence-guided minimally-invasive resections of abdominal paragangliomas using a single intravenous ICG dose. These findings support the scientific basis for routine use of ICG-fluorescence-guided surgery in challenging anatomical cases, providing valuable assistance in lesion detection and resection.
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Affiliation(s)
- M A van Dam
- Department of Surgery, Leiden University Medical Center, Leiden, The Netherlands.
| | - A S L P Crobach
- Department of Pathology, Leiden University Medical Center, Leiden, The Netherlands
| | - B Boekestijn
- Department of Radiology, Leiden University Medical Center, Leiden, The Netherlands
| | - E P M Corssmit
- Division of Endocrinology, Department of Internal Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - B A Bonsing
- Department of Surgery, Leiden University Medical Center, Leiden, The Netherlands
| | - A L Vahrmeijer
- Department of Surgery, Leiden University Medical Center, Leiden, The Netherlands
| | - J S D Mieog
- Department of Surgery, Leiden University Medical Center, Leiden, The Netherlands
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12
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Gouzou D, Taimori A, Haloubi T, Finlayson N, Wang Q, Hopgood JR, Vallejo M. Applications of machine learning in time-domain fluorescence lifetime imaging: a review. Methods Appl Fluoresc 2024; 12:022001. [PMID: 38055998 PMCID: PMC10851337 DOI: 10.1088/2050-6120/ad12f7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 09/25/2023] [Accepted: 12/06/2023] [Indexed: 12/08/2023]
Abstract
Many medical imaging modalities have benefited from recent advances in Machine Learning (ML), specifically in deep learning, such as neural networks. Computers can be trained to investigate and enhance medical imaging methods without using valuable human resources. In recent years, Fluorescence Lifetime Imaging (FLIm) has received increasing attention from the ML community. FLIm goes beyond conventional spectral imaging, providing additional lifetime information, and could lead to optical histopathology supporting real-time diagnostics. However, most current studies do not use the full potential of machine/deep learning models. As a developing image modality, FLIm data are not easily obtainable, which, coupled with an absence of standardisation, is pushing back the research to develop models which could advance automated diagnosis and help promote FLIm. In this paper, we describe recent developments that improve FLIm image quality, specifically time-domain systems, and we summarise sensing, signal-to-noise analysis and the advances in registration and low-level tracking. We review the two main applications of ML for FLIm: lifetime estimation and image analysis through classification and segmentation. We suggest a course of action to improve the quality of ML studies applied to FLIm. Our final goal is to promote FLIm and attract more ML practitioners to explore the potential of lifetime imaging.
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Affiliation(s)
- Dorian Gouzou
- Dorian Gouzou and Marta Vallejo are with Institute of Signals, Sensors and Systems, School of Engineering and Physical Sciences, Heriot Watt University, Edinburgh, EH14 4AS, United Kingdom
| | - Ali Taimori
- Tarek Haloubi, Ali Taimori, and James R. Hopgood are with Institute for Imaging, Data and Communication, School of Engineering, University of Edinburgh, Edinburgh, EH9 3FG, United Kingdom
| | - Tarek Haloubi
- Tarek Haloubi, Ali Taimori, and James R. Hopgood are with Institute for Imaging, Data and Communication, School of Engineering, University of Edinburgh, Edinburgh, EH9 3FG, United Kingdom
| | - Neil Finlayson
- Neil Finlayson is with Institute for Integrated Micro and Nano Systems, School of Engineering, University ofEdinburgh, Edinburgh EH9 3FF, United Kingdom
| | - Qiang Wang
- Qiang Wang is with Centre for Inflammation Research, University of Edinburgh, Edinburgh, EH16 4TJ, United Kingdom
| | - James R Hopgood
- Tarek Haloubi, Ali Taimori, and James R. Hopgood are with Institute for Imaging, Data and Communication, School of Engineering, University of Edinburgh, Edinburgh, EH9 3FG, United Kingdom
| | - Marta Vallejo
- Dorian Gouzou and Marta Vallejo are with Institute of Signals, Sensors and Systems, School of Engineering and Physical Sciences, Heriot Watt University, Edinburgh, EH14 4AS, United Kingdom
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13
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Hopkinson C, Matheson AB, Finlayson N, Tanner MG, Akram AR, Henderson RK. Combined fluorescence lifetime and surface topographical imaging of biological tissue. BIOMEDICAL OPTICS EXPRESS 2024; 15:212-221. [PMID: 38223190 PMCID: PMC10783922 DOI: 10.1364/boe.504309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 11/03/2023] [Accepted: 11/05/2023] [Indexed: 01/16/2024]
Abstract
In this work a combined fluorescence lifetime and surface topographical imaging system is demonstrated. Based around a 126 × 192 time resolved single photon avalanche diode (SPAD) array operating in time correlated single-photon counting (TCSPC) mode, both the fluorescence lifetime and time of flight (ToF) can be calculated on a pixel by pixel basis. Initial tests on fluorescent samples show it is able to provide 4 mm resolution in distance and 0.4 ns resolution in lifetime. This combined modality has potential biomedical applications such as surgical guidance, endoscopy, and diagnostic imaging. The system is demonstrated on both ovine and human pulmonary tissue samples, where it offers excellent fluorescence lifetime contrast whilst also giving a measure of the distance to the sample surface.
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Affiliation(s)
- Charlotte Hopkinson
- Institute for Integrated Micro and Nano
Systems, School of Engineering, University of Edinburgh, Edinburgh EH9 3FF, UK
| | - Andrew B. Matheson
- Institute for Integrated Micro and Nano
Systems, School of Engineering, University of Edinburgh, Edinburgh EH9 3FF, UK
| | - Neil Finlayson
- Institute for Integrated Micro and Nano
Systems, School of Engineering, University of Edinburgh, Edinburgh EH9 3FF, UK
| | - Michael G. Tanner
- Institute of Photonics and Quantum
Sciences, School of Engineering and Physical Sciences,
Heriot-Watt University, Edinburgh EH14 4AS,
UK
| | - Ahsan R. Akram
- Centre for Inflammation Research, Institute
of Regeneration and Repair, University of Edinburgh, Edinburgh BioQuarter, Edinburgh EH16 4UU,
UK
| | - Robert K. Henderson
- Institute for Integrated Micro and Nano
Systems, School of Engineering, University of Edinburgh, Edinburgh EH9 3FF, UK
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14
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Vivier D, Hautière M, Pineau D, Dancer PA, Herbet A, Hugnot JP, Bernhard C, Goncalves V, Truillet C, Boquet D, Denat F. Synthesis and Preclinical Fluorescence Imaging of Dually Functionalized Antibody Conjugates Targeting Endothelin Receptor-Positive Tumors. Bioconjug Chem 2023; 34:2144-2153. [PMID: 37931154 DOI: 10.1021/acs.bioconjchem.3c00445] [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: 11/08/2023]
Abstract
For the past two decades, the emerging role of the endothelin (ET) axis in cancer has been extensively investigated, and its involvement in several mechanisms described as "hallmarks of cancer" has clearly highlighted its potential as a therapeutic target. Despite the growing interest in finding effective anticancer drugs, no breakthrough treatment has successfully made its way to the market. Recently, our team reported the development of a new immuno-positron emission tomography probe targeting the ET A receptor (ETA, one of the ET receptors) that allows the successful detection of ETA+ glioblastoma, paving the way for the elaboration of novel antibody-based strategies. In this study, we describe the synthesis of two PET/NIRF (positron emission tomography/near-infrared fluorescence) dually functionalized imaging agents, directed against ETA or ETB, that could be used to detect ET+ tumors and select patients that will be eligible for fluorescence-guided surgery. Both imaging modalities were brought together using a highly versatile tetrazine platform bearing the IRDye800CW fluorophore and desferrioxamine for 89Zr chelation. This so-called monomolecular multimodal imaging probe was then "clicked", via an inverse-electron-demand Diels-Alder reaction, to antibodies conjugated site-specifically with a trans-cyclooctene group. This approach has led to homogeneous and well-defined constructs that retained their high affinity and high specificity for their respective target, as shown by flow cytometry and NIRF in vivo imaging experiments in nude mice bearing CHO-ETA and CHO-ETB tumors. Ultimately, these bimodal immunoconjugates could be used to improve the outcomes of patients with ET+ tumors.
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Affiliation(s)
- Delphine Vivier
- Université de Bourgogne, ICMUB UMR CNRS 6302, 21000 Dijon, France
| | - Marie Hautière
- Université Paris-Saclay, CEA, DMTS, SPI, 91191 Gif-sur-Yvette, France
- Université Paris-Saclay, CEA, CNRS, Inserm, BioMaps, 91401 Orsay, France
| | - Donovan Pineau
- Université de Montpellier, IGF, INSERM U 1191-CNRS UMR 5203, 34094 Montpellier, France
| | | | - Amaury Herbet
- Université Paris-Saclay, CEA, DMTS, SPI, 91191 Gif-sur-Yvette, France
| | - Jean-Philippe Hugnot
- Université de Montpellier, IGF, INSERM U 1191-CNRS UMR 5203, 34094 Montpellier, France
| | - Claire Bernhard
- Université de Bourgogne, ICMUB UMR CNRS 6302, 21000 Dijon, France
| | - Victor Goncalves
- Université de Bourgogne, ICMUB UMR CNRS 6302, 21000 Dijon, France
| | - Charles Truillet
- Université Paris-Saclay, CEA, CNRS, Inserm, BioMaps, 91401 Orsay, France
| | - Didier Boquet
- Université Paris-Saclay, CEA, DMTS, SPI, 91191 Gif-sur-Yvette, France
| | - Franck Denat
- Université de Bourgogne, ICMUB UMR CNRS 6302, 21000 Dijon, France
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15
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Yang X, Zhang Y, Liu Y, Wang Y, Zhou N. Fluorescence imaging of peripheral nerve function and structure. J Mater Chem B 2023; 11:10052-10071. [PMID: 37846619 DOI: 10.1039/d3tb01927f] [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: 10/18/2023]
Abstract
Peripheral nerve injuries are common and can cause catastrophic consequences. Although peripheral nerves have notable regenerative capacity, full functional recovery is often challenging due to a number of factors, including age, the type of injury, and delayed healing, resulting in chronic disorders that cause lifelong miseries and significant financial burdens. Fluorescence imaging, among the various techniques, may be the key to overcome these restrictions and improve the prognosis because of its feasibility and dynamic real-time imaging. Intraoperative dynamic fluorescence imaging allows the visualization of the morphological structure of the nerve so that surgeons can reduce the incidence of medically induced injury. Axoplasmic transport-based neuroimaging allows the visualization of the internal transport function of the nerve, facilitating early, objective, and accurate assessment of the degree of regenerative repair, allowing early intervention in patients with poor recovery, thereby improving prognosis. This review briefly discusses peripheral nerve fluorescent dyes that have been reported or could potentially be employed, with a focus on their role in visualizing the nerve's function and anatomy.
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Affiliation(s)
- Xiaoqi Yang
- Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou 450052, Henan, China.
| | - Yumin Zhang
- Department of Geriatric Endocrinology, The First Hospital Affiliated to Nanjing Medical University, Nanjing, Jiangsu 210029, P. R. China
| | - Yadong Liu
- Department of Spinal Surgery, The First Hospital of Jilin University, Jilin Engineering Research Center For Spine and Spinal Cord Injury, 1 Xinmin St, Changchun, 130021, China.
| | - Yuanyi Wang
- Department of Spinal Surgery, The First Hospital of Jilin University, Jilin Engineering Research Center For Spine and Spinal Cord Injury, 1 Xinmin St, Changchun, 130021, China.
| | - Nan Zhou
- Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou 450052, Henan, China.
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16
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Arias A, Anastasopoulou M, Gorpas D, Ntziachristos V. Using reflectometry to minimize the dependence of fluorescence intensity on optical absorption and scattering. BIOMEDICAL OPTICS EXPRESS 2023; 14:5499-5511. [PMID: 37854563 PMCID: PMC10581795 DOI: 10.1364/boe.496599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 09/11/2023] [Indexed: 10/20/2023]
Abstract
The total diffuse reflectance RT and the effective attenuation coefficient µeff of an optically diffuse medium map uniquely onto its absorption and reduced scattering coefficients. Using this premise, we developed a methodology where RT and the slope of the logarithmic spatially resolved reflectance, a quantity related to µeff, are the inputs of a look-up table to correct the dependence of fluorescent signals on the media's optical properties. This methodology does not require an estimation of the medium's optical property, avoiding elaborate simulations and their errors to offer accurate and fast corrections. The experimental demonstration of our method yielded a mean relative error in fluorophore concentrations of less than 4% over a wide range of optical property variations. We discuss how the method developed can be employed to improve image fidelity and fluorochrome quantification in fluorescence molecular imaging clinical applications.
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Affiliation(s)
- Augusto Arias
- Chair of Biological Imaging at the Central Institute for Translational Cancer Research (TranslaTUM), School of Medicine, Technical University of Munich, Munich, 81675, Germany
- Institute of Biological and Medical Imaging, Helmholtz Zentrum München, Neuherberg, 85764, Germany
| | - Maria Anastasopoulou
- Chair of Biological Imaging at the Central Institute for Translational Cancer Research (TranslaTUM), School of Medicine, Technical University of Munich, Munich, 81675, Germany
- Institute of Biological and Medical Imaging, Helmholtz Zentrum München, Neuherberg, 85764, Germany
| | - Dimitris Gorpas
- Chair of Biological Imaging at the Central Institute for Translational Cancer Research (TranslaTUM), School of Medicine, Technical University of Munich, Munich, 81675, Germany
- Institute of Biological and Medical Imaging, Helmholtz Zentrum München, Neuherberg, 85764, Germany
| | - Vasilis Ntziachristos
- Chair of Biological Imaging at the Central Institute for Translational Cancer Research (TranslaTUM), School of Medicine, Technical University of Munich, Munich, 81675, Germany
- Institute of Biological and Medical Imaging, Helmholtz Zentrum München, Neuherberg, 85764, Germany
- DZHK (German Centre for Cardiovascular Research), partner site Munich Heart Alliance, Munich, 81675, Germany
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17
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do Valle NCH, Janssen S, Stroet MCM, Pollenus S, Van den Block S, Devoogdt N, Debacker JM, Hernot S, De Rooster H. Safety assessment of fluorescently labeled anti-EGFR Nanobodies in healthy dogs. Front Pharmacol 2023; 14:1266288. [PMID: 37781693 PMCID: PMC10538052 DOI: 10.3389/fphar.2023.1266288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 08/30/2023] [Indexed: 10/03/2023] Open
Abstract
Introduction: Surgical resection is one of the main treatment options for several types of cancer, the desired outcome being complete removal of the primary tumor and its local metastases. Any malignant tissue that remains after surgery may lead to relapsing disease, negatively impacting the patient's quality of life and overall survival. Fluorescence imaging in surgical oncology aims to facilitate full resection of solid tumors through the visualization of malignant tissue during surgery, following the administration of a fluorescent contrast agent. An important class of targeting molecules are Nanobodies® (Nbs), small antigen-binding fragments derived from camelid heavy chain only antibodies. When coupled with a fluorophore, Nbs can bind to a specific receptor and demarcate tumor margins through a fluorescence camera, improving the accuracy of surgical intervention. A widely investigated target for fluorescence-guided surgery is the epidermal growth factor receptor (EGFR), which is overexpressed in several types of tumors. Promising results with the fluorescently labeled anti-EGFR Nb 7D12-s775z in murine models motivated a project employing the compound in a pioneering study in dogs with spontaneous cancer. Methods: To determine the safety profile of the study drug, three healthy purpose-bred dogs received an intravenous injection of the tracer at 5.83, 11.66, and 19.47 mg/m2, separated by a 14-day wash-out period. Physical examination and fluorescence imaging were performed at established time points, and the animals were closely monitored between doses. Blood and urine values were analyzed pre- and 24 h post administration. Results: No adverse effects were observed, and blood and urine values stayed within the reference range. Images of the oral mucosa, acquired with a fluorescence imaging device (Fluobeam®), suggest rapid clearance, which was in accordance with previous in vivo studies. Discussion: These are the first results to indicate that 7D12-s775z is well tolerated in dogs and paves the way to conduct clinical trials in canine patients with EGFR-overexpressing spontaneous tumors.
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Affiliation(s)
- Nayra Cristina Herreira do Valle
- Small Animal Department, Faculty of Veterinary Medicine, Ghent University, Ghent, Belgium
- Molecular Imaging and Therapy Research Group, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent University, Ghent, Belgium
| | - Simone Janssen
- Small Animal Department, Faculty of Veterinary Medicine, Ghent University, Ghent, Belgium
- Molecular Imaging and Therapy Research Group, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent University, Ghent, Belgium
| | - Marcus C. M. Stroet
- Molecular Imaging and Therapy Research Group, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Belgium
| | - Sofie Pollenus
- Molecular Imaging and Therapy Research Group, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Belgium
| | - Sonja Van den Block
- Small Animal Department, Faculty of Veterinary Medicine, Ghent University, Ghent, Belgium
- Molecular Imaging and Therapy Research Group, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Belgium
| | - Nick Devoogdt
- Molecular Imaging and Therapy Research Group, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Belgium
| | - Jens M. Debacker
- Small Animal Department, Faculty of Veterinary Medicine, Ghent University, Ghent, Belgium
- Molecular Imaging and Therapy Research Group, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent University, Ghent, Belgium
| | - Sophie Hernot
- Molecular Imaging and Therapy Research Group, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Belgium
| | - Hilde De Rooster
- Small Animal Department, Faculty of Veterinary Medicine, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent University, Ghent, Belgium
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18
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Waterhouse DJ, Privitera L, Anderson J, Stoyanov D, Giuliani S. Enhancing intraoperative tumor delineation with multispectral short-wave infrared fluorescence imaging and machine learning. JOURNAL OF BIOMEDICAL OPTICS 2023; 28:094804. [PMID: 36993142 PMCID: PMC10042297 DOI: 10.1117/1.jbo.28.9.094804] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 03/06/2023] [Indexed: 06/19/2023]
Abstract
SIGNIFICANCE Fluorescence-guided surgery (FGS) provides specific real-time visualization of tumors, but intensity-based measurement of fluorescence is prone to errors. Multispectral imaging (MSI) in the short-wave infrared (SWIR) has the potential to improve tumor delineation by enabling machine-learning classification of pixels based on their spectral characteristics. AIM Determine whether MSI can be applied to FGS and combined with machine learning to provide a robust method for tumor visualization. APPROACH A multispectral SWIR fluorescence imaging device capable of collecting data from six spectral filters was constructed and deployed on neuroblastoma (NB) subcutaneous xenografts ( n = 6 ) after the injection of a NB-specific NIR-I fluorescent probe (Dinutuximab-IRDye800). We constructed image cubes representing fluorescence collected from ∼ 850 to 1450 nm and compared the performance of seven learning-based methods for pixel-by-pixel classification, including linear discriminant analysis, k -nearest neighbor classification, and a neural network. RESULTS The spectra of tumor and non-tumor tissue were subtly different and conserved between individuals. In classification, a combine principal component analysis and k -nearest-neighbor approach with area under curve normalization performed best, achieving 97.5% per-pixel classification accuracy (97.1%, 93.5%, and 99.2% for tumor, non-tumor tissue and background, respectively). CONCLUSIONS The development of dozens of new imaging agents provides a timely opportunity for multispectral SWIR imaging to revolutionize next-generation FGS.
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Affiliation(s)
- Dale J. Waterhouse
- University College London, Wellcome, EPSRC Centre for Interventional and Surgical Sciences, London, United Kingdom
| | - Laura Privitera
- University College London, Wellcome, EPSRC Centre for Interventional and Surgical Sciences, London, United Kingdom
- UCL Great Ormond Street Institute of Child Health, Cancer Section, Developmental Biology and Cancer Programme, London, United Kingdom
| | - John Anderson
- UCL Great Ormond Street Institute of Child Health, Cancer Section, Developmental Biology and Cancer Programme, London, United Kingdom
| | - Danail Stoyanov
- University College London, Wellcome, EPSRC Centre for Interventional and Surgical Sciences, London, United Kingdom
| | - Stefano Giuliani
- University College London, Wellcome, EPSRC Centre for Interventional and Surgical Sciences, London, United Kingdom
- UCL Great Ormond Street Institute of Child Health, Cancer Section, Developmental Biology and Cancer Programme, London, United Kingdom
- Great Ormond Street Hospital for Children NHS Trust, Department of Specialist Neonatal and Paediatric Surgery, London, United Kingdom
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19
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Licari LC, Bologna E, Proietti F, Flammia RS, Bove AM, D'annunzio S, Tuderti G, Leonardo C. Exploring the Applications of Indocyanine Green in Robot-Assisted Urological Surgery: A Comprehensive Review of Fluorescence-Guided Techniques. SENSORS (BASEL, SWITZERLAND) 2023; 23:5497. [PMID: 37420664 DOI: 10.3390/s23125497] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 06/07/2023] [Accepted: 06/09/2023] [Indexed: 07/09/2023]
Abstract
This comprehensive review aims to explore the applications of indocyanine green (ICG) in robot-assisted urological surgery through a detailed examination of fluorescence-guided techniques. An extensive literature search was conducted in PubMed/MEDLINE, EMBASE and Scopus, using keywords such as "indocyanine green," "ICG", "NIRF", "Near Infrared Fluorescence", "robot-assisted", and "urology". Additional suitable articles were collected by manually cross-referencing the bibliography of previously selected papers. The integration of the Firefly® technology in the Da Vinci® robotic system has opened new avenues for the advancement and exploration of different urological procedures. ICG is a fluorophore widely used in near-infrared fluorescence-guided techniques. The synergistic combination of intraoperative support, safety profiles and widespread availability comprises an additional asset that empowers ICG-guided robotic surgery. This overview of the current state of the art illustrates the potential advantages and broad applications of combining ICG-fluorescence guidance with robotic-assisted urological surgery.
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Affiliation(s)
- Leslie Claire Licari
- Urology Unit, Department of Maternal-Child and Urological Sciences, "Sapienza" University of Rome, Policlinico Umberto I Hospital, Viale del Policlinico 155, 00161 Rome, Italy
| | - Eugenio Bologna
- Urology Unit, Department of Maternal-Child and Urological Sciences, "Sapienza" University of Rome, Policlinico Umberto I Hospital, Viale del Policlinico 155, 00161 Rome, Italy
| | - Flavia Proietti
- Department of Urology, IRCCS "Regina Elena" National Cancer Institute, Via Elio Chianesi 53, 00144 Rome, Italy
| | - Rocco Simone Flammia
- Urology Unit, Department of Maternal-Child and Urological Sciences, "Sapienza" University of Rome, Policlinico Umberto I Hospital, Viale del Policlinico 155, 00161 Rome, Italy
| | - Alfredo Maria Bove
- Department of Urology, IRCCS "Regina Elena" National Cancer Institute, Via Elio Chianesi 53, 00144 Rome, Italy
| | - Simone D'annunzio
- Department of Urology, IRCCS "Regina Elena" National Cancer Institute, Via Elio Chianesi 53, 00144 Rome, Italy
| | - Gabriele Tuderti
- Department of Urology, IRCCS "Regina Elena" National Cancer Institute, Via Elio Chianesi 53, 00144 Rome, Italy
| | - Costantino Leonardo
- Department of Urology, IRCCS "Regina Elena" National Cancer Institute, Via Elio Chianesi 53, 00144 Rome, Italy
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Niemitz L, van der Stel SD, Sorensen S, Messina W, Venkata Sekar SK, Sterenborg HJCM, Andersson-Engels S, Ruers TJM, Burke R. Microcamera Visualisation System to Overcome Specular Reflections for Tissue Imaging. MICROMACHINES 2023; 14:mi14051062. [PMID: 37241685 DOI: 10.3390/mi14051062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 05/09/2023] [Accepted: 05/15/2023] [Indexed: 05/28/2023]
Abstract
In vivo tissue imaging is an essential tool for medical diagnosis, surgical guidance, and treatment. However, specular reflections caused by glossy tissue surfaces can significantly degrade image quality and hinder the accuracy of imaging systems. In this work, we further the miniaturisation of specular reflection reduction techniques using micro cameras, which have the potential to act as intra-operative supportive tools for clinicians. In order to remove these specular reflections, two small form factor camera probes, handheld at 10 mm footprint and miniaturisable to 2.3 mm, are developed using different modalities, with line-of-sight to further miniaturisation. (1) The sample is illuminated via multi-flash technique from four different positions, causing a shift in reflections which are then filtered out in a post-processing image reconstruction step. (2) The cross-polarisation technique integrates orthogonal polarisers onto the tip of the illumination fibres and camera, respectively, to filter out the polarisation maintaining reflections. These form part of a portable imaging system that is capable of rapid image acquisition using different illumination wavelengths, and employs techniques that lend themselves well to further footprint reduction. We demonstrate the efficacy of the proposed system with validating experiments on tissue-mimicking phantoms with high surface reflection, as well as on excised human breast tissue. We show that both methods can provide clear and detailed images of tissue structures along with the effective removal of distortion or artefacts caused by specular reflections. Our results suggest that the proposed system can improve the image quality of miniature in vivo tissue imaging systems and reveal underlying feature information at depth, for both human and machine observers, leading to better diagnosis and treatment outcomes.
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Affiliation(s)
- Lorenzo Niemitz
- Biophotonics @ Tyndall, IPIC, Tyndall National Institute, University College Cork, T12 R5CP Cork, Ireland
| | - Stefan D van der Stel
- Netherlands Cancer Institute-Antoni van Leeuwenhoek, 1066 CX Amsterdam, The Netherlands
- Group Nanobiophysics, Faculty TNW, Twente University, 7522 NB Enschede, The Netherlands
| | - Simon Sorensen
- Biophotonics @ Tyndall, IPIC, Tyndall National Institute, University College Cork, T12 R5CP Cork, Ireland
| | - Walter Messina
- Biophotonics @ Tyndall, IPIC, Tyndall National Institute, University College Cork, T12 R5CP Cork, Ireland
| | - Sanathana Konugolu Venkata Sekar
- Biophotonics @ Tyndall, IPIC, Tyndall National Institute, University College Cork, T12 R5CP Cork, Ireland
- BioPixS Ltd.-Biophotonics Standards, IPIC, Lee Maltings Complex, Dyke Parade, T12 R5CP Cork, Ireland
| | | | - Stefan Andersson-Engels
- Biophotonics @ Tyndall, IPIC, Tyndall National Institute, University College Cork, T12 R5CP Cork, Ireland
- BioPixS Ltd.-Biophotonics Standards, IPIC, Lee Maltings Complex, Dyke Parade, T12 R5CP Cork, Ireland
- Department of Physics, University College Cork, T12 K8AF Cork, Ireland
| | - Theo J M Ruers
- Netherlands Cancer Institute-Antoni van Leeuwenhoek, 1066 CX Amsterdam, The Netherlands
- Group Nanobiophysics, Faculty TNW, Twente University, 7522 NB Enschede, The Netherlands
| | - Ray Burke
- Biophotonics @ Tyndall, IPIC, Tyndall National Institute, University College Cork, T12 R5CP Cork, Ireland
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21
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Muilenburg KM, Isder CC, Radhakrishnan P, Batra SK, Ly QP, Carlson MA, Bouvet M, Hollingsworth MA, Mohs AM. Mucins as contrast agent targets for fluorescence-guided surgery of pancreatic cancer. Cancer Lett 2023; 561:216150. [PMID: 36997106 PMCID: PMC10150776 DOI: 10.1016/j.canlet.2023.216150] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 03/16/2023] [Accepted: 03/26/2023] [Indexed: 03/31/2023]
Abstract
Pancreatic cancer is difficult to resect due to its unique challenges, often leading to incomplete tumor resections. Fluorescence-guided surgery (FGS), also known as intraoperative molecular imaging and optical surgical navigation, is an intraoperative tool that can aid surgeons in complete tumor resection through an increased ability to detect the tumor. To target the tumor, FGS contrast agents rely on biomarkers aberrantly expressed in malignant tissue compared to normal tissue. These biomarkers allow clinicians to identify the tumor and its stage before surgical resection and provide a contrast agent target for intraoperative imaging. Mucins, a family of glycoproteins, are upregulated in malignant tissue compared to normal tissue. Therefore, these proteins may serve as biomarkers for surgical resection. Intraoperative imaging of mucin expression in pancreatic cancer can potentially increase the number of complete resections. While some mucins have been studied for FGS, the potential ability to function as a biomarker target extends to the entire mucin family. Therefore, mucins are attractive proteins to investigate more broadly as FGS biomarkers. This review summarizes the biomarker traits of mucins and their potential use in FGS for pancreatic cancer.
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Affiliation(s)
- Kathryn M Muilenburg
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, 505 S 45th St, Omaha, NE, 68198, USA; Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, 505 S 45th St, Omaha, NE, 68198, USA.
| | - Carly C Isder
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, 505 S 45th St, Omaha, NE, 68198, USA; Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, 505 S 45th St, Omaha, NE, 68198, USA.
| | - Prakash Radhakrishnan
- Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, 505 S 45th St, Omaha, NE, 68198, USA; Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, 505 S 45th St, Omaha, NE, 68198, USA.
| | - Surinder K Batra
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, S 45th St, Omaha, NE, 68198, USA.
| | - Quan P Ly
- Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, 505 S 45th St, Omaha, NE, 68198, USA; Department of Surgery, University of Nebraska Medical Center, 983280 Nebraska Medical Center, Omaha, NE, 68198-3280, USA.
| | - Mark A Carlson
- Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, 505 S 45th St, Omaha, NE, 68198, USA; Department of Surgery, University of Nebraska Medical Center, 983280 Nebraska Medical Center, Omaha, NE, 68198-3280, USA.
| | - Michael Bouvet
- Department of Surgery, University of California San Diego, 9500 Gilman Dr, La Jolla, CA, 92093, USA; VA San Diego Healthcare System, 3350 La Jolla Village Dr, San Diego, CA, 92161, USA.
| | - Michael A Hollingsworth
- Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, 505 S 45th St, Omaha, NE, 68198, USA; Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, 505 S 45th St, Omaha, NE, 68198, USA.
| | - Aaron M Mohs
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, 505 S 45th St, Omaha, NE, 68198, USA; Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, 505 S 45th St, Omaha, NE, 68198, USA; Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, S 45th St, Omaha, NE, 68198, USA.
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22
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Fluorescence-guided surgery: National trends in adoption and application in pediatric surgery. J Pediatr Surg 2023; 58:689-694. [PMID: 36670001 DOI: 10.1016/j.jpedsurg.2022.12.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 12/12/2022] [Indexed: 12/26/2022]
Abstract
BACKGROUND Fluorescence-guided surgery (FGS) with indocyanine green (ICG) is a rapidly diffusing surgical innovation, but its utilization in pediatrics remains unknown. We present a cross-sectional descriptive analysis of trends from a national database. METHODS The Pediatric Health Information System (PHIS) database was queried for patient encounters between January 2016 and July 2021 with an associated ICG administration within 3 days prior to surgery. All procedure codes from each encounter were reviewed by two surgeons to determine the most likely associated FGS procedure and assign an operative category. RESULTS 1270 encounters were identified from 38 participating hospitals. The mean patient age (SD) was 8.3 (6.4) years, 54.5% were male, 63.8% were white, and 30.1% were Hispanic. The most common categories for ICG use were neurosurgery (21.3%), biliary (18.3%), perfusion (14.8%), urology (12.5%), gastrointestinal (10.8%), ophthalmology (8.8%), and thoracic (5.6%). Utilization over time increased for some categories (thoracic, visceral perfusion, and neurological procedures) or remained stable for other categories. Overall ICG utilization has increased in 2020 (n = 314) compared to 2016 (N = 83). The number of centers utilizing ICG has also increased from 14 hospitals in 2016 to 29 hospitals in 2020 though adoption remains unevenly distributed, with 5 high-utilization hospitals accounting for 56.8% of all ICG FGS cases. CONCLUSION ICG is being used across a wide variety of pediatric surgical disciplines. Trends over time show increasingly frequent adoption across the country, with a few high-volume centers driving the innovation. Fluorescence-guided surgery is commercially available and is becoming more commonplace for pediatric surgeons. Dedicated efforts will now be needed to assess outcomes using this promising technology. LEVEL OF EVIDENCE Level IV. STUDY TYPE Retrospective study.
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23
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Corden C, Boitor R, Dusanjh PK, Harwood A, Mukherjee A, Gomez D, Notingher I. Autofluorescence-Raman Spectroscopy for Ex Vivo Mapping Colorectal Liver Metastases and Liver Tissue. J Surg Res 2023; 288:10-20. [PMID: 36940563 DOI: 10.1016/j.jss.2023.02.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 01/15/2023] [Accepted: 02/17/2023] [Indexed: 03/23/2023]
Abstract
INTRODUCTION Identifying colorectal liver metastases (CRLM) during liver resection could assist in achieving clear surgical margins, which is an important prognostic variable for both disease-free and overall survival. The aim of this study was to investigate the effect of auto-fluorescence (AF) and Raman spectroscopy for ex vivo label-free discrimination of CRLMs from normal liver tissue. Secondary aims include exploring options for multimodal AF-Raman integration with respect to diagnosis accuracy and imaging speed on human liver tissue and CRLM. METHODS Liver samples were obtained from patients undergoing liver surgery for CRLM who provided informed consent (15 patients were recruited). AF and Raman spectroscopy was performed on CRLM and normal liver tissue samples and then compared to histology. RESULTS AF emission spectra demonstrated that the 671 nm and 775/785 nm excitation wavelengths provided the highest contrast, as normal liver tissue elicited on average around eight-fold higher AF intensity compared to CRLM. The use of the 785 nm wavelength had the advantage of enabling Raman spectroscopy measurements from CRLM regions, allowing discrimination of CRLM from regions of normal liver tissue eliciting unusual low AF intensity, preventing misclassification. Proof-of-concept experiments using small pieces of CRLM samples covered by large normal liver tissue demonstrated the feasibility of a dual-modality AF-Raman for detection of positive margins within few minutes. CONCLUSIONS AF imaging and Raman spectroscopy can discriminate CRLM from normal liver tissue in an ex vivo setting. These results suggest the potential for developing integrated multimodal AF-Raman imaging techniques for intraoperative assessment of surgical margins.
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Affiliation(s)
- Christopher Corden
- School of Physics and Astronomy, University of Nottingham, Nottingham, UK
| | - Radu Boitor
- School of Physics and Astronomy, University of Nottingham, Nottingham, UK
| | - Palminder Kaur Dusanjh
- Histopathology Department, Nottingham University Hospitals NHS Trust, Queen's Medical Centre, Nottingham, UK
| | - Andrew Harwood
- Histopathology Department, Nottingham University Hospitals NHS Trust, Queen's Medical Centre, Nottingham, UK
| | - Abhik Mukherjee
- Histopathology Department, Nottingham University Hospitals NHS Trust, Queen's Medical Centre, Nottingham, UK; School of Medicine, University of Nottingham, Nottingham, UK
| | - Dhanwant Gomez
- Department of Hepatobiliary and Pancreatic Surgery, Nottingham University Hospitals NHS Trust, Queen's Medical Centre, Nottingham, UK
| | - Ioan Notingher
- School of Physics and Astronomy, University of Nottingham, Nottingham, UK.
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24
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Caulfield C, Wu D, Miller IS, Byrne AT, Mac Aonghusa P, Zhuk S, Cinelli L, Bannone E, Marescaux J, Gioux S, Diana M, March TL, Vahrmeijer AL, Cahill R, O’Shea DF. BF 2-Azadipyrromethene Fluorophores for Intraoperative Vital Structure Identification. Molecules 2023; 28:2167. [PMID: 36903411 PMCID: PMC10004488 DOI: 10.3390/molecules28052167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Revised: 02/21/2023] [Accepted: 02/23/2023] [Indexed: 03/03/2023] Open
Abstract
A series of mono- and bis-polyethylene glycol (PEG)-substituted BF2-azadipyrromethene fluorophores have been synthesized with emissions in the near-infrared region (700-800 nm) for the purpose of fluorescence guided intraoperative imaging; chiefly ureter imaging. The Bis-PEGylation of fluorophores resulted in higher aqueous fluorescence quantum yields, with PEG chain lengths of 2.9 to 4.6 kDa being optimal. Fluorescence ureter identification was possible in a rodent model with the preference for renal excretion notable through comparative fluorescence intensities from the ureters, kidneys and liver. Ureteral identification was also successfully performed in a larger animal porcine model under abdominal surgical conditions. Three tested doses of 0.5, 0.25 and 0.1 mg/kg all successfully identified fluorescent ureters within 20 min of administration which was sustained up to 120 min. 3-D emission heat map imaging allowed the spatial and temporal changes in intensity due to the distinctive peristaltic waves of urine being transferred from the kidneys to the bladder to be identified. As the emission of these fluorophores could be spectrally distinguished from the clinically-used perfusion dye indocyanine green, it is envisaged that their combined use could be a step towards intraoperative colour coding of different tissues.
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Affiliation(s)
- Cathal Caulfield
- Department of Chemistry, Royal College of Surgeons in Ireland (RCSI), D02 PN40 Dublin 2, Ireland
| | - Dan Wu
- Department of Chemistry, Royal College of Surgeons in Ireland (RCSI), D02 PN40 Dublin 2, Ireland
| | - Ian S. Miller
- Precision Cancer Medicine Group, Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland (RCSI), D02 PN40 Dublin 2, Ireland
- National Pre-clinical Imaging Centre (NPIC), Royal College of Surgeons in Ireland (RCSI), D02 PN40 Dublin, Ireland
| | - Annette T. Byrne
- Precision Cancer Medicine Group, Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland (RCSI), D02 PN40 Dublin 2, Ireland
- National Pre-clinical Imaging Centre (NPIC), Royal College of Surgeons in Ireland (RCSI), D02 PN40 Dublin, Ireland
| | - Pól Mac Aonghusa
- IBM Research-Ireland, Damastown Industrial Estate, Mulhuddart, D02 PN40 Dublin 15, Ireland
| | - Sergiy Zhuk
- IBM Research-Ireland, Damastown Industrial Estate, Mulhuddart, D02 PN40 Dublin 15, Ireland
| | - Lorenzo Cinelli
- Research Institute against Digestive Cancer (IRCAD), 67000 Strasbourg, France
- Department of Gastrointestinal Surgery, San Raffaele Hospital IRCCS, 20132 Milan, Italy
| | - Elisa Bannone
- Research Institute against Digestive Cancer (IRCAD), 67000 Strasbourg, France
- Department of Surgery, Istituto Fondazione Poliambulanza, 25124 Brescia, Italy
- Department of Pancreatic Surgery, Verona University, 37134 Verona, Italy
| | - Jacques Marescaux
- Research Institute against Digestive Cancer (IRCAD), 67000 Strasbourg, France
| | - Sylvain Gioux
- ICube Lab, Photonics Instrumentation for Health, 67400 Strasbourg, France
| | - Michele Diana
- Research Institute against Digestive Cancer (IRCAD), 67000 Strasbourg, France
- ICube Lab, Photonics Instrumentation for Health, 67400 Strasbourg, France
- Digestive and Endocrine Surgery, Nouvel Hospital Civil, University of Strasbourg, 67000 Strasbourg, France
| | - Taryn L. March
- Department of Clinical Pharmacy and Toxicology, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands
| | | | - Ronan Cahill
- UCD Centre for Precision Surgery, School of Medicine, University College Dublin, D02 PN40 Dublin 4, Ireland
- Department of Surgery, Mater Misericordiae University Hospital, D02 PN40 Dublin 7, Ireland
| | - Donal F. O’Shea
- Department of Chemistry, Royal College of Surgeons in Ireland (RCSI), D02 PN40 Dublin 2, Ireland
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25
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El-Swaify ST, Laban M, Ali SH, Sabbour M, Refaat MA, Farrag N, Ibrahim EA, Coleman RL. Can fluorescence-guided surgery improve optimal surgical treatment for ovarian cancer? A systematic scoping review of clinical studies. Int J Gynecol Cancer 2023; 33:549-561. [PMID: 36707085 DOI: 10.1136/ijgc-2022-003846] [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: 01/28/2023] Open
Abstract
BACKGROUND The predicament of achieving optimal surgical intervention faced by surgeons in treating ovarian cancer has driven research into improving intra-operative detection of cancer using fluorescent materials. OBJECTIVE To provide a literature overview on the clinical use of intra-operative fluorescence-guided surgery for ovarian cancer, either for cytoreductive surgery or sentinel lymph node (SLN) biopsy. METHODS The systematic review included studies from June 2002 until October 2021 from PubMed, Web of Science, and Scopus as well as those from a search of related literature. Studies were included if they investigated the use of fluorescence-guided surgery in patients with a diagnosis of ovarian cancer. Authors charted variables related to study characteristics, patient demographics, baseline clinical characteristics, fluorescence-guided surgery material, and treatment details, and surgical, oncological, and survival outcome variables. After screening 2817 potential studies, 24 studies were included. RESULTS Studies investigating the role of fluorescence-guided surgery to visualize tumor deposits or SLN biopsy included the data of 410 and 118 patients, respectively. Six studies used indocyanine green tracer with a mean SLN detection rate of 92.3% with a pelvic and para-aortic detection rate of 94.8% and 96.7%, respectively. The sensitivity, specificity, and positive predictive value for micrometastases detection of OTL38 and 5-aminolevulinc acid at time of cytoreduction were 92.2% vs 79.8%, 67.3% vs 94.8%, and 55.8% vs 95.8%, respectively. CONCLUSION Fluorescence -guided surgery is a technique that may improve the detection rate of micrometastases and SLN identification in ovarian cancer. Further research is needed to establish whether this will lead to improved patient outcomes.
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Affiliation(s)
| | - Mohamed Laban
- Gynecologic Oncology Unit, Ain Shams University Hospitals, Cairo, Egypt
| | - Sara H Ali
- Ain Shams University Hospitals, Cairo, Egypt
| | | | | | | | - Eman A Ibrahim
- Department of Pathology, Ain Shams University Hospitals, Cairo, Egypt
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Johansen ML, Vincent J, Rose M, Sloan AE, Brady-Kalnay SM. Comparison of Near-Infrared Imaging Agents Targeting the PTPmu Tumor Biomarker. Mol Imaging Biol 2023:10.1007/s11307-023-01799-5. [PMID: 36695968 DOI: 10.1007/s11307-023-01799-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 01/02/2023] [Accepted: 01/03/2023] [Indexed: 01/26/2023]
Abstract
PURPOSE Maximal, safe resection of solid tumors is considered a critical first step in successful cancer treatment. The advent of fluorescence image-guided surgery (FIGS) using non-specific agents has improved patient outcomes, particularly in the case of glioblastoma. Molecularly targeted agents that recognize specific tumor biomarkers have the potential to augment these gains. Identification of the optimal combination of targeting moiety and fluorophore is needed prior to initiating clinical trials. PROCEDURES A 20-amino acid peptide (SBK2) recognizing the receptor protein-tyrosine phosphatase mu (PTPmu)-derived tumor-specific biomarker, with or without a linker, was conjugated to three different near-infrared fluorophores: indocyanine green (ICG), IRDye® 800CW, and Tide Fluor™ 8WS. The in vivo specificity, time course, and biodistribution were evaluated for each using mice with heterotopic human glioma tumors that express the PTPmu biomarker to identify component combinations with optimal properties for FIGS. RESULTS SBK2 conjugated to ICG demonstrated excellent specificity for gliomas in heterotopic tumors. SBK2-ICG showed significantly higher in vivo tumor labeling compared to the Scram-ICG control from 10 min to 24 h, p < 0.01 at all timepoints, following injection, as well as a significantly higher ex vivo tumor signal at 24 h, p < 0.001. Inserting a six-amino acid linker between the targeting peptide and ICG increased the clearance rate and resulted in significantly higher in vivo tumor signal relative to its linker-containing Scrambled control from 10 min to 8 h, p < 0.05 at all timepoints, after dosing. Agents made with the more hydrophilic IRDye® 800CW and Tide Fluor™ 8WS showed no specific tumor labeling relative to the controls. The IRDye 800CW-conjugated agents cleared within 1 h, while the non-specific fluorescent tumor signal generated by the Tide Fluor 8WS-conjugated agents persists beyond 24 h. CONCLUSIONS The SBK2 PTPmu-targeting peptide conjugated to ICG specifically labels heterotopic human gliomas grown in mice between 10 min and 24 h following injection. Similar molecules constructed with more hydrophilic dyes demonstrated no specificity. These studies present a promising candidate for use in FIGS of PTPmu biomarker-expressing tumors.
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Affiliation(s)
- Mette L Johansen
- Department of Molecular Biology and Microbiology, Case Western Reserve University School of Medicine, 10900 Euclid Ave., Cleveland, OH, 44106, USA
| | - Jason Vincent
- Department of Molecular Biology and Microbiology, Case Western Reserve University School of Medicine, 10900 Euclid Ave., Cleveland, OH, 44106, USA
| | - Marissa Rose
- Department of Molecular Biology and Microbiology, Case Western Reserve University School of Medicine, 10900 Euclid Ave., Cleveland, OH, 44106, USA
| | - Andrew E Sloan
- Department of Neurological Surgery, Case Western Reserve University and University Hospitals, Cleveland, OH, 44106, USA
- The Case Comprehensive Cancer Center, Case Western Reserve University, 10900 Euclid Ave., Cleveland, OH, 44106, USA
| | - Susann M Brady-Kalnay
- Department of Molecular Biology and Microbiology, Case Western Reserve University School of Medicine, 10900 Euclid Ave., Cleveland, OH, 44106, USA.
- The Case Comprehensive Cancer Center, Case Western Reserve University, 10900 Euclid Ave., Cleveland, OH, 44106, USA.
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27
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Wang R, Deutsch RJ, Sunassee ED, Crouch BT, Ramanujam N. Adaptive Design of Fluorescence Imaging Systems for Custom Resolution, Fields of View, and Geometries. BME FRONTIERS 2023; 4:0005. [PMID: 37849673 PMCID: PMC10521686 DOI: 10.34133/bmef.0005] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 11/27/2022] [Indexed: 10/19/2023] Open
Abstract
Objective and Impact Statement: We developed a generalized computational approach to design uniform, high-intensity excitation light for low-cost, quantitative fluorescence imaging of in vitro, ex vivo, and in vivo samples with a single device. Introduction: Fluorescence imaging is a ubiquitous tool for biomedical applications. Researchers extensively modify existing systems for tissue imaging, increasing the time and effort needed for translational research and thick tissue imaging. These modifications are application-specific, requiring new designs to scale across sample types. Methods: We implemented a computational model to simulate light propagation from multiple sources. Using a global optimization algorithm and a custom cost function, we determined the spatial positioning of optical fibers to generate 2 illumination profiles. These results were implemented to image core needle biopsies, preclinical mammary tumors, or tumor-derived organoids. Samples were stained with molecular probes and imaged with uniform and nonuniform illumination. Results: Simulation results were faithfully translated to benchtop systems. We demonstrated that uniform illumination increased the reliability of intraimage analysis compared to nonuniform illumination and was concordant with traditional histological findings. The computational approach was used to optimize the illumination geometry for the purposes of imaging 3 different fluorophores through a mammary window chamber model. Illumination specifically designed for intravital tumor imaging generated higher image contrast compared to the case in which illumination originally optimized for biopsy images was used. Conclusion: We demonstrate the significance of using a computationally designed illumination for in vitro, ex vivo, and in vivo fluorescence imaging. Application-specific illumination increased the reliability of intraimage analysis and enhanced the local contrast of biological features. This approach is generalizable across light sources, biological applications, and detectors.
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Affiliation(s)
- Roujia Wang
- Department of Biomedical Engineering, Duke University, Durham, NC, USA
| | - Riley J. Deutsch
- Department of Biomedical Engineering, Duke University, Durham, NC, USA
| | | | - Brian T. Crouch
- Department of Biomedical Engineering, Duke University, Durham, NC, USA
| | - Nirmala Ramanujam
- Department of Biomedical Engineering, Duke University, Durham, NC, USA
- Department of Pharmacology and Cancer Biology, Duke University Medical Center, Durham, NC, USA
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28
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Bateman LM, Hebert KA, Streeter SS, Nunziata JA, Barth CW, Wang LG, Gibbs SL, Henderson ER. Use of Freshly Amputated Human Limbs for Pre-Clinical Evaluation of Molecular-Targeted Fluorescent Probes. PROCEEDINGS OF SPIE--THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING 2023; 12361:1236109. [PMID: 37009433 PMCID: PMC10065840 DOI: 10.1117/12.2650356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
Abstract
We have co-developed a first-in-kind model of fluorophore testing in freshly amputated human limbs. Ex vivo human tissue provides a unique opportunity for the testing of pre-clinical fluorescent agents, collection of imaging data, and histopathologic examination in human tissue prior to performing in vivo experiments. Existing pre-clinical fluorescent agent studies rely primarily on animal models, which do not directly predict fluorophore performance in humans and can result in wasted resources and time if an agent proves ineffective in early human trials. Because fluorophores have no desired therapeutic effect, their clinical utility is based solely on their safety and ability to highlight tissues of interest. Advancing to human trials even via the FDA's phase 0/microdose pathway still requires substantial resources, single-species pharmacokinetic testing, and toxicity testing. In a recently concluded study using amputated human lower limbs, we were able to test successfully a nerve-specific fluorophore in pre-clinical development. This study used systemic administration via vascular cannulization and a cardiac perfusion pump. We envision that this model may assist with early lead agent testing selection for fluorophores with various targets and mechanisms.
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Affiliation(s)
- Logan M Bateman
- Department of Orthopaedics, Dartmouth Health, Lebanon, New Hampshire, United States
- Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire, United States
| | - Kendra A Hebert
- Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire, United States
| | - Samuel S Streeter
- Department of Orthopaedics, Dartmouth Health, Lebanon, New Hampshire, United States
- Geisel School of Medicine, Dartmouth College, Hanover, New Hampshire, United States
| | - Jenna A Nunziata
- Heart and Vascular Center, Dartmouth Health, Lebanon, New Hampshire, United States
| | - Connor W Barth
- Department of Biomedical Engineering, Oregon Health and Science University, Portland, Oregon, United States
| | - Lei G Wang
- Department of Biomedical Engineering, Oregon Health and Science University, Portland, Oregon, United States
| | - Summer L Gibbs
- Department of Biomedical Engineering, Oregon Health and Science University, Portland, Oregon, United States
| | - Eric R Henderson
- Department of Orthopaedics, Dartmouth Health, Lebanon, New Hampshire, United States
- Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire, United States
- Geisel School of Medicine, Dartmouth College, Hanover, New Hampshire, United States
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29
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Zhang X, Yu F, Wang Z, Jiang T, Song X, Yu F. Fluorescence probes for lung carcinoma diagnosis and clinical application. SENSORS & DIAGNOSTICS 2023; 2:1077-1096. [DOI: 10.1039/d3sd00029j] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/08/2024]
Abstract
This review provides an overview of the most recent developments in fluorescence probe technology for the accurate detection and clinical therapy of lung carcinoma.
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Affiliation(s)
- Xiaoyu Zhang
- Key Laboratory of Hainan Trauma and Disaster Rescue, The First Affiliated Hospital of Hainan Medical University, Hainan Medical University, Haikou 571199, China
- Department of Pulmonary and Critical Care Medicine, Yantai Affiliated Hospital of Binzhou Medical University, Yantai 264100, China
| | - Feifei Yu
- Key Laboratory of Hainan Trauma and Disaster Rescue, The First Affiliated Hospital of Hainan Medical University, Hainan Medical University, Haikou 571199, China
- Key Laboratory of Emergency and Trauma, Ministry of Education, Engineering Research Center for Hainan Bio-Smart Materials and Bio-Medical Devices, Key Laboratory of Hainan Functional Materials and Molecular Imaging, College of Emergency and Trauma, Hainan Medical University, Haikou 571199, China
| | - Zhenkai Wang
- Key Laboratory of Hainan Trauma and Disaster Rescue, The First Affiliated Hospital of Hainan Medical University, Hainan Medical University, Haikou 571199, China
- Key Laboratory of Emergency and Trauma, Ministry of Education, Engineering Research Center for Hainan Bio-Smart Materials and Bio-Medical Devices, Key Laboratory of Hainan Functional Materials and Molecular Imaging, College of Emergency and Trauma, Hainan Medical University, Haikou 571199, China
| | - Tongmeng Jiang
- Key Laboratory of Hainan Trauma and Disaster Rescue, The First Affiliated Hospital of Hainan Medical University, Hainan Medical University, Haikou 571199, China
- Key Laboratory of Emergency and Trauma, Ministry of Education, Engineering Research Center for Hainan Bio-Smart Materials and Bio-Medical Devices, Key Laboratory of Hainan Functional Materials and Molecular Imaging, College of Emergency and Trauma, Hainan Medical University, Haikou 571199, China
| | - Xinyu Song
- State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medicine University, Guangzhou 510120, China
| | - Fabiao Yu
- Key Laboratory of Hainan Trauma and Disaster Rescue, The First Affiliated Hospital of Hainan Medical University, Hainan Medical University, Haikou 571199, China
- Key Laboratory of Emergency and Trauma, Ministry of Education, Engineering Research Center for Hainan Bio-Smart Materials and Bio-Medical Devices, Key Laboratory of Hainan Functional Materials and Molecular Imaging, College of Emergency and Trauma, Hainan Medical University, Haikou 571199, China
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30
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Sun JX, Xu JZ, An Y, Ma SY, Liu CQ, Zhang SH, Luan Y, Wang SG, Xia QD. Future in precise surgery: Fluorescence-guided surgery using EVs derived fluorescence contrast agent. J Control Release 2023; 353:832-841. [PMID: 36496053 DOI: 10.1016/j.jconrel.2022.12.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 12/04/2022] [Accepted: 12/05/2022] [Indexed: 12/23/2022]
Abstract
Surgery is the only cure for many solid tumors, but positive resection margins, damage to vital nerves, vessels and organs during surgery, and the range and extent of lymph node dissection are significant concerns which hinder the development of surgery. The emergence of fluorescence-guided surgery (FGS) means a farewell to the era when surgeons relied only on visual and tactile feedback, and it gives surgeons another eye to distinguish tumors from normal tissues for precise resection and helps to find a balance between complete tumor lesions removal and maximal organ function conservation. However, the existing synthetic fluorescence contrast agent has flaws in safety, specificity and biocompatibility to various extents. Extracellular vesicles (EVs) are a group of heterogeneous types of cell-derived membranous structures present in all biological fluids. EVs, especially engineered targeting EVs, play an increasingly important role in drug delivery because of their good biocompatibility, validated safety and targeting ability. Nevertheless, few studies have employed EVs loaded with fluorophores to construct fluorescence contrast agents and used them in FGS. Here, we systematically reviewed the current state of knowledge regarding FGS, fundamental characteristics of EVs, and the development of engineered targeting EVs, and put forward a novel strategy and procedures to produce EVs-based fluorescence contrast agent used in fluorescence-guided surgery.
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Affiliation(s)
- Jian-Xuan Sun
- Department and Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1095 Jiefang Avenue, 430030 Wuhan, China
| | - Jin-Zhou Xu
- Department and Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1095 Jiefang Avenue, 430030 Wuhan, China
| | - Ye An
- Department and Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1095 Jiefang Avenue, 430030 Wuhan, China
| | - Si-Yang Ma
- Department and Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1095 Jiefang Avenue, 430030 Wuhan, China
| | - Chen-Qian Liu
- Department and Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1095 Jiefang Avenue, 430030 Wuhan, China
| | - Si-Han Zhang
- Department and Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1095 Jiefang Avenue, 430030 Wuhan, China
| | - Yang Luan
- Department and Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1095 Jiefang Avenue, 430030 Wuhan, China.
| | - Shao-Gang Wang
- Department and Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1095 Jiefang Avenue, 430030 Wuhan, China.
| | - Qi-Dong Xia
- Department and Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1095 Jiefang Avenue, 430030 Wuhan, China.
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31
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Wang YH, Lee KC, Wei WC, Wang CH, Liu HJ, Hou JR, Hsieh TC, Chen JK, Chen TY, Liaw SK, Lin CF, Wu CC, Chieh JJ, Chang CH. Hybrid Vibration and UV Fluorescence Technology for Rapid Imaging and Guidance for Manual Removal of Fish Bones from Fish Floss. SENSORS (BASEL, SWITZERLAND) 2022; 22:8978. [PMID: 36433573 PMCID: PMC9699430 DOI: 10.3390/s22228978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 11/05/2022] [Accepted: 11/10/2022] [Indexed: 06/16/2023]
Abstract
The objective of the proposed human-machine cooperation (HMC) workstation is to both rapidly detect calcium-based fish bones in masses of minced fish floss and visually guide operators in approaching and removing the detected fish bones by hand based on the detection of fingernails or plastic-based gloves. Because vibration is a separation mechanism that can prevent absorption or scattering in thick fish floss for UV fluorescence detection, the design of the HMC workstation included a vibration unit together with an optical box and display screens. The system was tested with commonly used fish (swordfish, salmon, tuna, and cod) representing various cooking conditions (raw meat, steam-cooked meat, and fish floss), their bones, and contaminating materials such as derived from gloves made of various types of plastic (polyvinylchloride, emulsion, and rubber) commonly used in the removal of fish bones. These aspects were each investigated using the spectrum analyzer and the optical box to obtain and analyze the fluorescence spectra and images. The filter was mounted on a charge-coupled device, and its transmission-wavelength window was based on the characteristic band for fish bones observed in the spectra. Gray-level AI algorithm was utilized to generate white marker rectangles. The vibration unit supports two mechanisms of air and downstream separation to improve the imaging screening of fish bones inside the considerable flow of fish floss. Notably, under 310 nm ultraviolet B (UVB) excitation, the fluorescence peaks of the raw fillets, steam-cooked meat, and fish floss were observed at for bands at longer wavelengths (500-600 nm), whereas those of the calcium and plastic materials occurred in shorter wavelength bands (400-500 nm). Perfect accuracy of 100% was achieved with the detection of 20 fish bones in 2 kg of fish floss, and the long test time of around 10-12 min results from the manual removal of these fish bones.
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Affiliation(s)
- Yen-Hsiang Wang
- Institute of Electro-Optical Engineering, National Taiwan Normal University, Taipei 116, Taiwan
| | - Kuan-Chieh Lee
- Institute of Electro-Optical Engineering, National Taiwan Normal University, Taipei 116, Taiwan
| | - Wen-Chun Wei
- Institute of Electro-Optical Engineering, National Taiwan Normal University, Taipei 116, Taiwan
| | - Chung-Huang Wang
- Product and Process Research Center, Food Industry Research and Development Institute, Hsinchu 300, Taiwan
| | - Hao-Jie Liu
- Institute of Electro-Optical Engineering, National Taiwan Normal University, Taipei 116, Taiwan
| | - Jia-Rong Hou
- Institute of Electro-Optical Engineering, National Taiwan Normal University, Taipei 116, Taiwan
| | - Tien-Chen Hsieh
- Institute of Electro-Optical Engineering, National Taiwan Normal University, Taipei 116, Taiwan
| | - Ju-Kai Chen
- Institute of Electro-Optical Engineering, National Taiwan Normal University, Taipei 116, Taiwan
| | - Ting-Yuan Chen
- Institute of Electro-Optical Engineering, National Taiwan Normal University, Taipei 116, Taiwan
| | - Shien-Kuei Liaw
- Department of Electronic and Computer Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan
| | - Choa-Feng Lin
- Department of Electronic Engineering, Asia Eastern University of Science and Technology, New Taipei 220, Taiwan
| | - Chin-Cheng Wu
- Institute of Electro-Optical Engineering, National Taiwan Normal University, Taipei 116, Taiwan
- Chemical Systems Research Division, National Chung-Shan Institute of Science & Technology, Taoyuan 325, Taiwan
| | - Jen-Jie Chieh
- Institute of Electro-Optical Engineering, National Taiwan Normal University, Taipei 116, Taiwan
| | - Chin-Hung Chang
- Product and Process Research Center, Food Industry Research and Development Institute, Hsinchu 300, Taiwan
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32
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Saad MA, Hasan T. Spotlight on Photoactivatable Liposomes beyond Drug Delivery: An Enabler of Multitargeting of Molecular Pathways. Bioconjug Chem 2022; 33:2041-2064. [PMID: 36197738 DOI: 10.1021/acs.bioconjchem.2c00376] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The potential of photoactivating certain molecules, photosensitizers (PS), resulting in photochemical processes, has long been realized in the form of photodynamic therapy (PDT) for the management of several cancerous and noncancerous pathologies. With an improved understanding of the photoactivation process and its broader implications, efforts are being made to exploit the various facets of photoactivation, PDT, and the associated phenomenon of photodynamic priming in enhancing treatment outcomes, specifically in cancer therapeutics. The parallel emergence of nanomedicine, specifically liposome-based nanoformulations, and the convergence of the two fields of liposome-based drug delivery and PDT have led to the development of unique hybrid systems, which combine the exciting features of liposomes with adequate complementation through the photoactivation process. While initially liposomes carrying photosensitizers (PSs) were developed for enhancing the pharmacokinetics and the general applicability of PSs, more recently, PS-loaded liposomes, apart from their utility in PDT, have found several applications including enhanced targeting of drugs, coloading multiple therapeutic agents to enhance synergistic effects, imaging, priming, triggering drug release, and facilitating the escape of therapeutic agents from the endolysosomal complex. This review discusses the design strategies, potential, and unique attributes of these hybrid systems, with not only photoactivation as an attribute but also the ability to encapsulate multiple agents for imaging, biomodulation, priming, and therapy referred to as photoactivatable multiagent/inhibitor liposomes (PMILS) and their targeted versions─targeted PMILS (TPMILS). While liposomes have formed their own niche in nanotechnology and nanomedicine with several clinically approved formulations, we try to highlight how using PS-loaded liposomes could address some of the limitations and concerns usually associated with liposomes to overcome them and enhance their preclinical and clinical utility in the future.
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Affiliation(s)
- Mohammad A Saad
- Wellman Center for Photomedicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114, United States
| | - Tayyaba Hasan
- Wellman Center for Photomedicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114, United States.,Division of Health Sciences and Technology, Harvard University and Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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33
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Intraoperative Tumor Detection Using Pafolacianine. Int J Mol Sci 2022; 23:ijms232112842. [PMID: 36361630 PMCID: PMC9658182 DOI: 10.3390/ijms232112842] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 10/16/2022] [Accepted: 10/21/2022] [Indexed: 12/24/2022] Open
Abstract
Cancer is a leading cause of death worldwide, with increasing numbers of new cases each year. For the vast majority of cancer patients, surgery is the most effective procedure for the complete removal of the malignant tissue. However, relapse due to the incomplete resection of the tumor occurs very often, as the surgeon must rely primarily on visual and tactile feedback. Intraoperative near-infrared imaging with pafolacianine is a newly developed technology designed for cancer detection during surgery, which has been proven to show excellent results in terms of safety and efficacy. Therefore, pafolacianine was approved by the U.S. Food and Drug Administration (FDA) on 29 November 2021, as an additional approach that can be used to identify malignant lesions and to ensure the total resection of the tumors in ovarian cancer patients. Currently, various studies have demonstrated the positive effects of pafolacianine’s use in a wide variety of other malignancies, with promising results expected in further research. This review focuses on the applications of the FDA-approved pafolacianine for the accurate intraoperative detection of malignant tissues. The cancer-targeting fluorescent ligands can shift the paradigm of surgical oncology by enabling the visualization of cancer lesions that are difficult to detect by inspection or palpation. The enhanced detection and removal of hard-to-detect cancer tissues during surgery will lead to remarkable outcomes for cancer patients and society, specifically by decreasing the cancer relapse rate, increasing the life expectancy and quality of life, and decreasing future rates of hospitalization, interventions, and costs.
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Martin E, Hom M, Mani L, Rosenthal EL. Current and Future Applications of Fluorescence-Guided Surgery in Head and Neck Cancer. Surg Oncol Clin N Am 2022; 31:695-706. [DOI: 10.1016/j.soc.2022.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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35
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Li C, Lin Q, Hu F, Bao R, Cai H, Gu Y. Based on lapatinib innovative near-infrared fluorescent probes targeting HER1/HER2 for in vivo tumors imaging. Biosens Bioelectron 2022; 214:114503. [DOI: 10.1016/j.bios.2022.114503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 06/05/2022] [Accepted: 06/21/2022] [Indexed: 11/02/2022]
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36
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Leiloglou M, Kedrzycki MS, Chalau V, Chiarini N, Thiruchelvam PTR, Hadjiminas DJ, Hogben KR, Rashid F, Ramakrishnan R, Darzi AW, Leff DR, Elson DS. Indocyanine green fluorescence image processing techniques for breast cancer macroscopic demarcation. Sci Rep 2022; 12:8607. [PMID: 35597783 PMCID: PMC9124184 DOI: 10.1038/s41598-022-12504-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 05/05/2022] [Indexed: 12/13/2022] Open
Abstract
Re-operation due to disease being inadvertently close to the resection margin is a major challenge in breast conserving surgery (BCS). Indocyanine green (ICG) fluorescence imaging could be used to visualize the tumor boundaries and help surgeons resect disease more efficiently. In this work, ICG fluorescence and color images were acquired with a custom-built camera system from 40 patients treated with BCS. Images were acquired from the tumor in-situ, surgical cavity post-excision, freshly excised tumor and histopathology tumour grossing. Fluorescence image intensity and texture were used as individual or combined predictors in both logistic regression (LR) and support vector machine models to predict the tumor extent. ICG fluorescence spectra in formalin-fixed histopathology grossing tumor were acquired and analyzed. Our results showed that ICG remains in the tissue after formalin fixation. Therefore, tissue imaging could be validated in freshly excised and in formalin-fixed grossing tumor. The trained LR model with combined fluorescence intensity (pixel values) and texture (slope of power spectral density curve) identified the tumor's extent in the grossing images with pixel-level resolution and sensitivity, specificity of 0.75 ± 0.3, 0.89 ± 0.2.This model was applied on tumor in-situ and surgical cavity (post-excision) images to predict tumor presence.
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Affiliation(s)
- Maria Leiloglou
- Hamlyn Centre, Institute of Global Health Innovation, Imperial College London, London, UK. .,Department of Surgery and Cancer, Imperial College London, London, UK.
| | - Martha S Kedrzycki
- Hamlyn Centre, Institute of Global Health Innovation, Imperial College London, London, UK.,Department of Surgery and Cancer, Imperial College London, London, UK.,Department of Breast Surgery, Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, UK
| | - Vadzim Chalau
- Hamlyn Centre, Institute of Global Health Innovation, Imperial College London, London, UK.,Department of Surgery and Cancer, Imperial College London, London, UK
| | - Nicolas Chiarini
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Paul T R Thiruchelvam
- Department of Surgery and Cancer, Imperial College London, London, UK.,Department of Breast Surgery, Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, UK
| | - Dimitri J Hadjiminas
- Department of Breast Surgery, Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, UK
| | - Katy R Hogben
- Department of Breast Surgery, Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, UK
| | - Faiza Rashid
- Department of Histopathology, Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, UK
| | - Rathi Ramakrishnan
- Department of Histopathology, Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, UK
| | - Ara W Darzi
- Hamlyn Centre, Institute of Global Health Innovation, Imperial College London, London, UK.,Department of Surgery and Cancer, Imperial College London, London, UK
| | - Daniel R Leff
- Hamlyn Centre, Institute of Global Health Innovation, Imperial College London, London, UK.,Department of Surgery and Cancer, Imperial College London, London, UK.,Department of Breast Surgery, Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, UK
| | - Daniel S Elson
- Hamlyn Centre, Institute of Global Health Innovation, Imperial College London, London, UK.,Department of Surgery and Cancer, Imperial College London, London, UK
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37
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Birch DJS, Levitus M, Mély Y. MAFmoves higher and faster. Methods Appl Fluoresc 2021; 10. [PMID: 34904961 DOI: 10.1088/2050-6120/ac3ec0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 11/30/2021] [Indexed: 11/12/2022]
Affiliation(s)
- David J S Birch
- The Photophysics Research Group, University of Strathclyde, Department of Physics, SUPA, John Anderson Building, 107 Rottenrow, Glasgow, G4 0NG, United Kingdom
| | - Marcia Levitus
- School of Molecular Sciences and The Biodesign Institute, Arizona State University, PO Box 875601, Tempe AZ, 85287-5601, United States of America
| | - Yves Mély
- Laboratoire de Bioimagerie et Pathologies, UMR7021 CNRS, Faculté de Pharmacie, Université de Strasbourg, Cedex, 67401 Illkirch, France
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