1
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Gant KL, Patankar MS, Campagnola PJ. A Perspective Review: Analyzing Collagen Alterations in Ovarian Cancer by High-Resolution Optical Microscopy. Cancers (Basel) 2024; 16:1560. [PMID: 38672642 PMCID: PMC11048585 DOI: 10.3390/cancers16081560] [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: 01/10/2024] [Revised: 04/10/2024] [Accepted: 04/11/2024] [Indexed: 04/28/2024] Open
Abstract
High-grade serous ovarian cancer (HGSOC) is the predominant subtype of ovarian cancer (OC), occurring in more than 80% of patients diagnosed with this malignancy. Histological and genetic analysis have confirmed the secretory epithelial of the fallopian tube (FT) as a major site of origin of HGSOC. Although there have been significant strides in our understanding of this disease, early stage detection and diagnosis are still rare. Current clinical imaging modalities lack the ability to detect early stage pathogenesis in the fallopian tubes and the ovaries. However, there are several microscopic imaging techniques used to analyze the structural modifications in the extracellular matrix (ECM) protein collagen in ex vivo FT and ovarian tissues that potentially can be modified to fit the clinical setting. In this perspective, we evaluate and compare the myriad of optical tools available to visualize these alterations and the invaluable insights these data provide on HGSOC initiation. We also discuss the clinical implications of these findings and how these data may help novel tools for early diagnosis of HGSOC.
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Affiliation(s)
- Kristal L. Gant
- Department of Obstetrics and Gynecology, University of Wisconsin-Madison, Madison, WI 53706, USA;
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Manish S. Patankar
- Department of Obstetrics and Gynecology, University of Wisconsin-Madison, Madison, WI 53706, USA;
- Carbone Cancer Center, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Paul J. Campagnola
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
- Carbone Cancer Center, University of Wisconsin-Madison, Madison, WI 53706, USA
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2
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Guimarães P, Morgado M, Batista A. On the quantitative analysis of lamellar collagen arrangement with second-harmonic generation imaging. BIOMEDICAL OPTICS EXPRESS 2024; 15:2666-2680. [PMID: 38633085 PMCID: PMC11019681 DOI: 10.1364/boe.516817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 02/23/2024] [Accepted: 02/27/2024] [Indexed: 04/19/2024]
Abstract
Second harmonic generation (SHG) allows for the examination of collagen structure in collagenous tissues. Collagen is a fibrous protein found in abundance in the human body, present in bones, cartilage, the skin, and the cornea, among other areas, providing structure, support, and strength. Its structural arrangement is deeply intertwined with its function. For instance, in the cornea, alterations in collagen organization can result in severe visual impairments. Using SHG imaging, various metrics have demonstrated the potential to study collagen organization. The discrimination between healthy, keratoconus, and crosslinked corneas, assessment of injured tendons, or the characterization of breast and ovarian tumorous tissue have been demonstrated. Nevertheless, these metrics have not yet been objectively evaluated or compared. A total of five metrics were identified and implemented from the literature, and an additional approach adapted from texture analysis was proposed. In this study, we analyzed their effectiveness on a ground-truth set of artificially generated fibrous images. Our investigation provides the first comprehensive assessment of the performance of multiple metrics, identifying both the strengths and weaknesses of each approach and providing valuable insights for future applications of SHG imaging in medical diagnostics and research.
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Affiliation(s)
- Pedro Guimarães
- Coimbra Institute for Biomedical Imaging and Translational Research (CIBIT), Institute for Nuclear Sciences Applied to Health (ICNAS), University of Coimbra, Coimbra, Portugal
| | - Miguel Morgado
- Coimbra Institute for Biomedical Imaging and Translational Research (CIBIT), Institute for Nuclear Sciences Applied to Health (ICNAS), University of Coimbra, Coimbra, Portugal
- Department of Physics, Faculty of Science and Technology, University of Coimbra, Coimbra, Portugal
| | - Ana Batista
- Coimbra Institute for Biomedical Imaging and Translational Research (CIBIT), Institute for Nuclear Sciences Applied to Health (ICNAS), University of Coimbra, Coimbra, Portugal
- Department of Physics, Faculty of Science and Technology, University of Coimbra, Coimbra, Portugal
- Centre for Innovative Biomedicine and Biotechnology (CIBB), Faculty of Medicine, University of Coimbra, Coimbra, Portugal
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3
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Zhao T, Zhao Z, Wang S, Pan Y. Quantitative analysis of ovarian cancer pathology using nonlinear optical imaging and lifetime microscopy. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2022. [DOI: 10.1016/j.cjac.2022.100207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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4
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da Silva LQ, Cancela RBB, de Lima Montalvão SA, Huber SC, Vieira-Damiani G, Triglia RM, Annichino-Bizzacchi JM. The effect of lyophilized platelet rich-plasma on skin aging: a non-randomized, controlled, pilot trial. Arch Dermatol Res 2021; 313:863-871. [PMID: 33550448 DOI: 10.1007/s00403-021-02186-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 12/18/2020] [Accepted: 01/09/2021] [Indexed: 12/14/2022]
Abstract
Platelet-rich plasma (PRP) showed positive results in the improvement of skin aging. Lyophilized PRP can be interesting in clinical practice due to the facility to obtain many samples in a single blood collection and can be used in multiple injections. To evaluate the effect of lyophilized PRP in the treatment of skin aging, through a Phase II pilot study. Nineteen women (54 years ± 7 years) with Glogau photoaging II and III types were select for this non-randomized, split-face controlled study. They received monthly intradermal injections of lyophilized PRP and saline solution (as control) into the facial skin, during a period of 2 months. The evaluation was performed by imaging method, histological techniques, and multiphoton microscopy. Although lyophilized PRP presented 10 times the platelet baseline value (P < .0001) and growth factors in adequate levels, only saline solution showed an increase of dermis thickness (p = .0009). Collagen pre and post-application remained the same for both types of treatments. The use of lyophilized PRP by mesotherapy showed no improvement on skin aging. TRIAL REGISTRATION APPROVAL: RBR-3n9wxw, UTN U1111-1226-6093-retrospectively registered.
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Affiliation(s)
- Letícia Queiroz da Silva
- Hemostasis Laboratory - Hemocentro, University of Campinas, 480, Carlos Chagas Street, Campinas, SP, Brazil.
| | | | | | - Stephany Cares Huber
- Hemostasis Laboratory - Hemocentro, University of Campinas, 480, Carlos Chagas Street, Campinas, SP, Brazil
| | - Gislaine Vieira-Damiani
- Department of Medicine, Medical Sciences School, University of Campinas, 126, Tessália Vieira de Camargo Street, Campinas, SP, Brazil
| | - Renata Marchi Triglia
- Department of Pathological Anatomy, Hospital das Clínicas, University of Campinas, 251, Vital Brazil Street, Campinas, SP, Brazil
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5
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Castor MDGDFC, Torres LC, Mello RJVD, Natal RDA, Vassallo J. Study on collagen parameters in vulvar cancer and preneoplastic lesions by Second Harmonic Generation microscopy. Sci Rep 2020; 10:5568. [PMID: 32221321 PMCID: PMC7101353 DOI: 10.1038/s41598-020-62346-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 02/24/2020] [Indexed: 01/17/2023] Open
Abstract
The extracellular matrix plays an important role in cellular balance, and collagen fibers are its most important component. Over the last few years, second harmonic generation (SHG) microscopy has been used for the analysis of collagen fibers in several types of gynaecological cancers, such as breast and ovarian cancer. The value of collagen parameters obtained with this technique to gain insights on the physiopathology and on the prognostic evaluation of cancer has been advocated. Herein, we have characterized the collagen fibers in squamous cell carcinoma (VSCC) and preneoplastic lesions using the SHG microscopy. Collagen parameters, quantity, organization, and uniformity, of VSCC, adjacent skin of VSCC or preneoplastic lesions were compared with values obtained in normal tissue of healthy control. There was an evident decrease in the values of collagen fiber parameters in the VSCC. Increased quantity and uniformity of tumor associated collagen fibers were associated with the presence of lymph node metastases, which suggest a prognostic value of such parameters in the evaluation of vulvar cancer.
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Affiliation(s)
| | - Leuridan Cavalcante Torres
- Division of Pelvis, Hospital de Cancer de Pernambuco, Recife, PE, Brazil.
- Translational Research Laboratory C. A. Hart, Instituto de Medicina Integral Prof. Fernando Figueira (IMIP), Recife, PE, Brazil.
| | | | - Rodrigo de Andrade Natal
- Laboratory of Investigative Pathology, CIPED, Faculdade de Ciências Médicas, UNICAMP, Campinas, SP, Brazil
| | - José Vassallo
- Laboratory of Investigative Pathology, CIPED, Faculdade de Ciências Médicas, UNICAMP, Campinas, SP, Brazil
- Department of Anatomic Pathology, AC Camargo Cancer Center, São Paulo, Brazil
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6
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Lim H. Harmonic Generation Microscopy 2.0: New Tricks Empowering Intravital Imaging for Neuroscience. Front Mol Biosci 2019; 6:99. [PMID: 31649934 PMCID: PMC6794408 DOI: 10.3389/fmolb.2019.00099] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Accepted: 09/17/2019] [Indexed: 01/08/2023] Open
Abstract
Optical harmonic generation, e.g., second- (SHG) and third-harmonic generation (THG), provides intrinsic contrasts for three-dimensional intravital microscopy. Contrary to two-photon excited fluorescence (TPEF), however, they have found relatively specialized applications, such as imaging collagenous and non-specific tissues, respectively. Here we review recent advances that broaden the capacity of SHG and THG for imaging the central nervous system in particular. The fundamental contrast mechanisms are reviewed as they encode novel information including molecular origin, spectroscopy, functional probes, and image analysis, which lay foundations for promising future applications in neuroscience.
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Affiliation(s)
- Hyungsik Lim
- Department of Physics and Astronomy, Hunter College and the Graduate Center of the City University of New York, New York, NY, United States
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7
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Sawyer TW, Koevary JW, Rice FPS, Howard CC, Austin OJ, Connolly DC, Cai KQ, Barton JK. Quantification of multiphoton and fluorescence images of reproductive tissues from a mouse ovarian cancer model shows promise for early disease detection. JOURNAL OF BIOMEDICAL OPTICS 2019; 24:1-16. [PMID: 31571434 PMCID: PMC6768507 DOI: 10.1117/1.jbo.24.9.096010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2019] [Accepted: 09/13/2019] [Indexed: 05/12/2023]
Abstract
Ovarian cancer is the deadliest gynecologic cancer due predominantly to late diagnosis. Early detection of ovarian cancer can increase 5-year survival rates from 40% up to 92%, yet no reliable early detection techniques exist. Multiphoton microscopy (MPM) is a relatively new imaging technique sensitive to endogenous fluorophores, which has tremendous potential for clinical diagnosis, though it is limited in its application to the ovaries. Wide-field fluorescence imaging (WFI) has been proposed as a complementary technique to MPM, as it offers high-resolution imagery of the entire organ and can be tailored to target specific biomarkers that are not captured by MPM imaging. We applied texture analysis to MPM images of a mouse model of ovarian cancer. We also conducted WFI targeting the folate receptor and matrix metalloproteinases. We find that texture analysis of MPM images of the ovary can differentiate between genotypes, which is a proxy for disease, with high statistical significance (p < 0.001). The wide-field fluorescence signal also changes significantly between genotypes (p < 0.01). We use the features to classify multiple tissue groups to over 80% accuracy. These results suggest that MPM and WFI are promising techniques for the early detection of ovarian cancer.
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Affiliation(s)
- Travis W. Sawyer
- University of Arizona, College of Optical Sciences, Tucson, Arizona, United States
| | - Jennifer W. Koevary
- University of Arizona, Department of Biomedical Engineering, Tucson, Arizona, United States
| | - Faith P. S. Rice
- University of Arizona, Department of Biomedical Engineering, Tucson, Arizona, United States
| | - Caitlin C. Howard
- University of Arizona, Department of Biomedical Engineering, Tucson, Arizona, United States
| | - Olivia J. Austin
- University of Arizona, Department of Biomedical Engineering, Tucson, Arizona, United States
| | | | - Kathy Q. Cai
- Fox Chase Cancer Center, Philadelphia, Pennsylvania, United States
| | - Jennifer K. Barton
- University of Arizona, College of Optical Sciences, Tucson, Arizona, United States
- University of Arizona, Department of Biomedical Engineering, Tucson, Arizona, United States
- Address all correspondence to Jennifer K. Barton, E-mail:
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8
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Light sheet microscopy for histopathology applications. Biomed Eng Lett 2019; 9:279-291. [PMID: 31456889 DOI: 10.1007/s13534-019-00122-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 06/21/2019] [Accepted: 07/15/2019] [Indexed: 12/27/2022] Open
Abstract
Light sheet microscopy (LSM) is an evolving optical imaging technique with a plane illumination for optical sectioning and volumetric imaging spanning cell biology, embryology, and in vivo live imaging. Here, we focus on emerging biomedical applications of LSM for tissue samples. Decoupling of the light sheet illumination from detection enables high-speed and large field-of-view imaging with minimal photobleaching and phototoxicity. These unique characteristics of the LSM technique can be easily adapted and potentially replace conventional histopathological procedures. In this review, we cover LSM technology from its inception to its most advanced technology; in particular, we highlight the human histopathological imaging applications to demonstrate LSM's rapid diagnostic ability in comparison with conventional histopathological procedures. We anticipate that the LSM technique can become a useful three-dimensional imaging tool for assessing human biopsies in the near future.
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9
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Dudenkova VV, Shirmanova MV, Lukina MM, Feldshtein FI, Virkin A, Zagainova EV. Examination of Collagen Structure and State by the Second Harmonic Generation Microscopy. BIOCHEMISTRY (MOSCOW) 2019; 84:S89-S107. [DOI: 10.1134/s0006297919140062] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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10
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Garcia AM, Magalhes FL, Soares JS, Junior EP, Lima MFRD, Mamede M, Paula AMD. Second harmonic generation imaging of the collagen architecture in prostate cancer tissue. Biomed Phys Eng Express 2018. [DOI: 10.1088/2057-1976/aaa379] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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11
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Idiopathic atrophoderma of Pasini and Pierini: A case study of collagen and elastin texture by multiphoton microscopy. J Am Acad Dermatol 2017; 77:930-937. [DOI: 10.1016/j.jaad.2017.02.044] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Revised: 02/15/2017] [Accepted: 02/16/2017] [Indexed: 11/19/2022]
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12
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Hristu R, Stanciu SG, Tranca DE, Stanciu GA. Improved quantification of collagen anisotropy with polarization-resolved second harmonic generation microscopy. JOURNAL OF BIOPHOTONICS 2017; 10:1171-1179. [PMID: 27774747 DOI: 10.1002/jbio.201600197] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Revised: 09/16/2016] [Accepted: 09/28/2016] [Indexed: 05/02/2023]
Abstract
Imaging tissue samples by polarization-resolved second harmonic generation microscopy provides both qualitative and quantitative insights into collagen organization in a label-free manner. Polarization-resolved second harmonic generation microscopy goes beyond simple intensity-based imaging by adding the laser beam polarization component and applying different quantitative metrics such as the anisotropy factor. It thus provides valuable information on collagen arrangement not available with intensity measurements alone. Current established approaches are limited to calculating the anisotropy factor for only a particular laser beam polarization and no general guidelines on how to select the best laser beam polarization have yet been defined. Here, we introduce a novel methodology for selecting the optimal laser beam polarization for characterizing tissues using the anisotropy in the purpose of identifying cancer signatures. We show that the anisotropy factor exhibits a similar laser beam polarization dependence to the second harmonic intensity and we combine it with the collagen orientation index computed by Fast Fourier Transform analysis of the recorded images to establish a framework for choosing the laser beam polarization that is optimal for an accurate interpretation of polarization-resolved second harmonic generation microscopy images and anisotropy maps, and hence a better differentiation between healthy and dysplastic areas. SHG image of skin tissue (a) and a selected area of interest for which we compute the SHG intensity (b) and anisotropy factor (c) dependence on the laser beam polarization and also the FFT spectrum (d) to evaluate the collagen orientation index.
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Affiliation(s)
- Radu Hristu
- Center for Microscopy-Microanalysis and Information Processing, University Politehnica of Bucharest, 313 Splaiul Independentei, 060042, Bucharest, Romania
| | - Stefan G Stanciu
- Center for Microscopy-Microanalysis and Information Processing, University Politehnica of Bucharest, 313 Splaiul Independentei, 060042, Bucharest, Romania
| | - Denis E Tranca
- Center for Microscopy-Microanalysis and Information Processing, University Politehnica of Bucharest, 313 Splaiul Independentei, 060042, Bucharest, Romania
| | - George A Stanciu
- Center for Microscopy-Microanalysis and Information Processing, University Politehnica of Bucharest, 313 Splaiul Independentei, 060042, Bucharest, Romania
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13
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Zeitoune AA, Luna JS, Salas KS, Erbes L, Cesar CL, Andrade LA, Carvahlo HF, Bottcher-Luiz F, Casco VH, Adur J. Epithelial Ovarian Cancer Diagnosis of Second-Harmonic Generation Images: A Semiautomatic Collagen Fibers Quantification Protocol. Cancer Inform 2017; 16:1176935117690162. [PMID: 28469386 PMCID: PMC5392028 DOI: 10.1177/1176935117690162] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Accepted: 01/02/2017] [Indexed: 11/20/2022] Open
Abstract
A vast number of human pathologic conditions are directly or indirectly related to tissular collagen structure remodeling. The nonlinear optical microscopy second-harmonic generation has become a powerful tool for imaging biological tissues with anisotropic hyperpolarized structures, such as collagen. During the past years, several quantification methods to analyze and evaluate these images have been developed. However, automated or semiautomated solutions are necessary to ensure objectivity and reproducibility of such analysis. This work describes automation and improvement methods for calculating the anisotropy (using fast Fourier transform analysis and the gray-level co-occurrence matrix). These were applied to analyze biopsy samples of human ovarian epithelial cancer at different stages of malignancy (mucinous, serous, mixed, and endometrial subtypes). The semiautomation procedure enabled us to design a diagnostic protocol that recognizes between healthy and pathologic tissues, as well as between different tumor types.
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Affiliation(s)
- Angel A Zeitoune
- Biofotónica y Procesamiento de Información Biológica (ByPIB), Centro de Investigación y Transferencia de Entre Ríos (CITER), CONICET-UNER, Entre Ríos, Argentina.,Microscopy Laboratory Applied to Molecular and Cellular Studies, Engineering School, National University of Entre Ríos, Entre Ríos, Argentina
| | - Johana Sj Luna
- Laboratory Applied to Non-Ionizing Radiation, Engineering School, National University of Entre Ríos, Entre Ríos, Argentina
| | - Kynthia Sanchez Salas
- Laboratory Applied to Non-Ionizing Radiation, Engineering School, National University of Entre Ríos, Entre Ríos, Argentina
| | - Luciana Erbes
- Biofotónica y Procesamiento de Información Biológica (ByPIB), Centro de Investigación y Transferencia de Entre Ríos (CITER), CONICET-UNER, Entre Ríos, Argentina.,Microscopy Laboratory Applied to Molecular and Cellular Studies, Engineering School, National University of Entre Ríos, Entre Ríos, Argentina
| | - Carlos L Cesar
- National Institute of Science and Technology on Photonics Applied to Cell Biology (INFABiC), São Paulo, Brazil.,Department of Physics, Federal University of Ceará (UFC), Fortaleza, Brazil
| | - Liliana Ala Andrade
- Department of Obstetrics and Gynecology, Faculty of Medical Sciences, State University of Campinas (UNICAMP), São Paulo, Brazil
| | - Hernades F Carvahlo
- National Institute of Science and Technology on Photonics Applied to Cell Biology (INFABiC), São Paulo, Brazil.,Department of Structural and Functional Biology, Biology Institute, State University of Campinas (UNICAMP), São Paulo, Brazil
| | - Fátima Bottcher-Luiz
- National Institute of Science and Technology on Photonics Applied to Cell Biology (INFABiC), São Paulo, Brazil.,Department of Pathology of the Faculty of Medical Sciences, State University of Campinas (UNICAMP), São Paulo, Brazil
| | - Victor H Casco
- Microscopy Laboratory Applied to Molecular and Cellular Studies, Engineering School, National University of Entre Ríos, Entre Ríos, Argentina
| | - Javier Adur
- Biofotónica y Procesamiento de Información Biológica (ByPIB), Centro de Investigación y Transferencia de Entre Ríos (CITER), CONICET-UNER, Entre Ríos, Argentina.,Microscopy Laboratory Applied to Molecular and Cellular Studies, Engineering School, National University of Entre Ríos, Entre Ríos, Argentina.,Laboratory Applied to Non-Ionizing Radiation, Engineering School, National University of Entre Ríos, Entre Ríos, Argentina
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14
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Bower AJ, Chidester B, Li J, Zhao Y, Marjanovic M, Chaney EJ, Do MN, Boppart SA. A quantitative framework for the analysis of multimodal optical microscopy images. Quant Imaging Med Surg 2017; 7:24-37. [PMID: 28275557 DOI: 10.21037/qims.2017.02.07] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
BACKGROUND Multimodal optical microscopy, a set of imaging techniques based on unique, yet complementary contrast mechanisms and spatially and temporally co-registered data acquisition, has emerged as a powerful biomedical tool. However, the analysis of the dense, high-dimensional datasets acquired by these instruments remains mostly qualitative and restricted to analysis of each modality individually. METHODS Using a custom-built multimodal nonlinear optical microscope, high dimensional datasets were acquired for automated classification of functional cell states as well as identification of histopathological features in tissues slices. Supervised classification of cell death modes was performed through support vector machines (SVM) and semi-supervised classification of tissue slices was performed through the use of the expectation maximization (EM) algorithm. RESULTS Applications of these techniques to the automated classification of cell death modes as well as to the identification of tissue components in fixed ex vivo tissue slices are presented. The analysis techniques developed provide a direct link between multimodal image contrast and biological structure and function, resulting in highly accurate classification in both settings. CONCLUSIONS Quantification of multimodal optical microscopy images through statistical modeling of the high dimensional data acquired gives a strong correlation between biological structure and function and image contrast. These methods are sensitive to the identification of diagnostic, cellular-level features important in a variety of clinical settings.
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Affiliation(s)
- Andrew J Bower
- Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, USA; Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Benjamin Chidester
- Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Joanne Li
- Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, USA; Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Youbo Zhao
- Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Marina Marjanovic
- Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, USA; Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Eric J Chaney
- Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Minh N Do
- Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, USA; Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, USA; Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Stephen A Boppart
- Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, USA; Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, USA; Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL, USA; Department of Internal Medicine, University of Illinois at Urbana-Champaign, Urbana, IL, USA
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15
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Adur J, Barbosa G, Pelegati V, Baratti M, Cesar C, Casco V, Carvalho H. Multimodal and non-linear optical microscopy applications in reproductive biology. Microsc Res Tech 2016; 79:567-82. [DOI: 10.1002/jemt.22684] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Revised: 04/18/2016] [Accepted: 05/04/2016] [Indexed: 01/11/2023]
Affiliation(s)
- J. Adur
- Biophotonic Group. Optics and Photonics Research Center (CEPOF); Institute of Physics “Gleb Wataghin,” State University of Campinas; Brazil
- Biofotónica y Procesamiento de Información Biológica (ByPIB); CITER - Centro de Investigación y Transferencia de Entre Ríos, CONICET-UNER; Argentina
- Microscopy Laboratory Applied to Molecular and Cellular Studies, School of Bioengineering; National University of Entre Ríos; Argentina
| | - G.O. Barbosa
- Department of Structural and Functional Biology; Biology Institute, State University of Campinas; Brazil
| | - V.B. Pelegati
- Biophotonic Group. Optics and Photonics Research Center (CEPOF); Institute of Physics “Gleb Wataghin,” State University of Campinas; Brazil
- INFABiC - National Institute of Science and Technology on Photonics Applied to Cell Biology, Campinas; Brazil
| | - M.O. Baratti
- INFABiC - National Institute of Science and Technology on Photonics Applied to Cell Biology, Campinas; Brazil
| | - C.L. Cesar
- Biophotonic Group. Optics and Photonics Research Center (CEPOF); Institute of Physics “Gleb Wataghin,” State University of Campinas; Brazil
- INFABiC - National Institute of Science and Technology on Photonics Applied to Cell Biology, Campinas; Brazil
- Department of Physics of Federal University of Ceara (UFC); Brazil
| | - V.H. Casco
- Biofotónica y Procesamiento de Información Biológica (ByPIB); CITER - Centro de Investigación y Transferencia de Entre Ríos, CONICET-UNER; Argentina
- Microscopy Laboratory Applied to Molecular and Cellular Studies, School of Bioengineering; National University of Entre Ríos; Argentina
| | - H.F. Carvalho
- Department of Structural and Functional Biology; Biology Institute, State University of Campinas; Brazil
- INFABiC - National Institute of Science and Technology on Photonics Applied to Cell Biology, Campinas; Brazil
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16
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Tilbury K, Campagnola PJ. Applications of second-harmonic generation imaging microscopy in ovarian and breast cancer. PERSPECTIVES IN MEDICINAL CHEMISTRY 2015; 7:21-32. [PMID: 25987830 PMCID: PMC4403703 DOI: 10.4137/pmc.s13214] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Revised: 03/01/2015] [Accepted: 03/03/2015] [Indexed: 11/23/2022]
Abstract
In this perspective, we discuss how the nonlinear optical technique of second-harmonic generation (SHG) microscopy has been used to greatly enhance our understanding of the tumor microenvironment (TME) of breast and ovarian cancer. Striking changes in collagen architecture are associated with these epithelial cancers, and SHG can image these changes with great sensitivity and specificity with submicrometer resolution. This information has not historically been exploited by pathologists but has the potential to enhance diagnostic and prognostic capabilities. We summarize the utility of image processing tools that analyze fiber morphology in SHG images of breast and ovarian cancer in human tissues and animal models. We also describe methods that exploit the SHG physical underpinnings that are effective in delineating normal and malignant tissues. First we describe the use of polarization-resolved SHG that yields metrics related to macromolecular and supramolecular structures. The coherence and corresponding phase-matching process of SHG results in emission directionality (forward to backward), which is related to sub-resolution fibrillar assembly. These analyses are more general and more broadly applicable than purely morphology-based analyses; however, they are more computationally intensive. Intravital imaging techniques are also emerging that incorporate all of these quantitative analyses. Now, all these techniques can be coupled with rapidly advancing miniaturization of imaging systems to afford their use in clinical situations including enhancing pathology analysis and also in assisting in real-time surgical determination of tumor margins.
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Affiliation(s)
- Karissa Tilbury
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI, USA
| | - Paul J Campagnola
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI, USA. ; Medical Physics Department, University of Wisconsin-Madison, Madison, WI, USA
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17
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Thomas G, van Voskuilen J, Gerritsen HC, Sterenborg HJCM. Advances and challenges in label-free nonlinear optical imaging using two-photon excitation fluorescence and second harmonic generation for cancer research. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2014; 141:128-38. [PMID: 25463660 DOI: 10.1016/j.jphotobiol.2014.08.025] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Revised: 08/20/2014] [Accepted: 08/23/2014] [Indexed: 11/28/2022]
Abstract
Nonlinear optical imaging (NLOI) has emerged to be a promising tool for bio-medical imaging in recent times. Among the various applications of NLOI, its utility is the most significant in the field of pre-clinical and clinical cancer research. This review begins by briefly covering the core principles involved in NLOI, such as two-photon excitation fluorescence (TPEF) and second harmonic generation (SHG). Subsequently, there is a short description on the various cellular components that contribute to endogenous optical fluorescence. Later on the review deals with its main theme--the challenges faced during label-free NLO imaging in translational cancer research. While this review addresses the accomplishment of various label-free NLOI based studies in cancer diagnostics, it also touches upon the limitations of the mentioned studies. In addition, areas in cancer research that need to be further investigated by label-free NLOI are discussed in a latter segment. The review eventually concludes on the note that label-free NLOI has and will continue to contribute richly in translational cancer research, to eventually provide a very reliable, yet minimally invasive cancer diagnostic tool for the patient.
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Affiliation(s)
- Giju Thomas
- Department of Biomedical Engineering and Physics, Academic Medical Centre, Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands; Centre for Optical Diagnostics and Therapy, Erasmus Medical Centre, Post Box 2040, 3000 CA, Rotterdam, the Netherlands.
| | - Johan van Voskuilen
- Department of Molecular Biophysics, Utrecht University, 3508 TA Utrecht, The Netherlands
| | - Hans C Gerritsen
- Department of Molecular Biophysics, Utrecht University, 3508 TA Utrecht, The Netherlands
| | - H J C M Sterenborg
- Department of Biomedical Engineering and Physics, Academic Medical Centre, Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands
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18
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Tilbury K, Hocker J, Wen BL, Sandbo N, Singh V, Campagnola PJ. Second harmonic generation microscopy analysis of extracellular matrix changes in human idiopathic pulmonary fibrosis. JOURNAL OF BIOMEDICAL OPTICS 2014; 19:086014. [PMID: 25134793 PMCID: PMC4137064 DOI: 10.1117/1.jbo.19.8.086014] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Revised: 07/16/2014] [Accepted: 07/17/2014] [Indexed: 05/21/2023]
Abstract
Patients with idiopathic fibrosis (IPF) have poor long-term survival as there are limited diagnostic/prognostic tools or successful therapies. Remodeling of the extracellular matrix (ECM) has been implicated in IPF progression; however, the structural consequences on the collagen architecture have not received considerable attention. Here, we demonstrate that second harmonic generation (SHG) and multiphoton fluorescence microscopy can quantitatively differentiate normal and IPF human tissues. For SHG analysis, we developed a classifier based on wavelet transforms, principle component analysis, and a K-nearest-neighbor algorithm to classify the specific alterations of the collagen structure observed in IPF tissues. The resulting ROC curves obtained by varying the numbers of principal components and nearest neighbors yielded accuracies of >95%. In contrast, simpler metrics based on SHG intensity and collagen coverage in the image provided little or no discrimination. We also characterized the change in the elastin/collagen balance by simultaneously measuring the elastin autofluorescence and SHG intensities and found that the IPF tissues were less elastic relative to collagen. This is consistent with known mechanical consequences of the disease. Understanding ECM remodeling in IPF via nonlinear optical microscopy may enhance our ability to differentiate patients with rapid and slow progression and, thus, provide better prognostic information.
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Affiliation(s)
- Karissa Tilbury
- University of Wisconsin–Madison, Department of Biomedical Engineering, Madison, Wisconsin 53706, United States
| | - James Hocker
- University of Wisconsin–Madison, Department of Biomedical Engineering, Madison, Wisconsin 53706, United States
| | - Bruce L. Wen
- University of Wisconsin–Madison, Medical Physics Department, Madison, Wisconsin 53706, United States
- Morgridge Institute for Research, Madison, Wisconsin 53715, United States
| | - Nathan Sandbo
- University of Wisconsin, School of Medicine and Public Health Madison, Division of Allergy, Pulmonary, and Critical Care Medicine, Madison, Wisconsin 53706, United States
| | - Vikas Singh
- University of Wisconsin–Madison, Department of Biostatistics and Medical Informatics, Madison, Wisconsin 53706, United States
| | - Paul J. Campagnola
- University of Wisconsin–Madison, Department of Biomedical Engineering, Madison, Wisconsin 53706, United States
- University of Wisconsin–Madison, Medical Physics Department, Madison, Wisconsin 53706, United States
- Address all correspondence to: Paul J. Campagnola, E-mail:
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Welge WA, DeMarco AT, Watson JM, Rice PS, Barton JK, Kupinski MA. Diagnostic potential of multimodal imaging of ovarian tissue using optical coherence tomography and second-harmonic generation microscopy. J Med Imaging (Bellingham) 2014; 1:025501. [PMID: 25798444 DOI: 10.1117/1.jmi.1.2.025501] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Ovarian cancer is particularly deadly because it is usually diagnosed after it has metastasized. We have previously identified features of ovarian cancer using optical coherence tomography (OCT) and second-harmonic generation (SHG) microscopy (targeting collagen). OCT provides an image of the ovarian microstructure while SHG provides a high-resolution map of collagen fiber bundle arrangement. Here we investigated the diagnostic potential of dual-modality OCT and SHG imaging. We conducted a fully crossed, multi-reader, multi-case study using seven human observers. Each observer classified 44 ex vivo mouse ovaries (16 normal and 28 abnormal) as normal or abnormal from OCT, SHG, and simultaneously viewed, co-registered OCT and SHG images and provided a confidence rating on a six-point scale. We determined the average receiver operating characteristic (ROC) curves, area under the ROC curves (AUC), and other quantitative figures of merit. The results show that OCT has diagnostic potential with an average AUC of 0.91 ± 0.06. The average AUC for SHG was less promising at 0.71 ± 0.13. The average AUC for simultaneous OCT and SHG was not significantly different from OCT alone, possibly due to the limited SHG field of view. The high performance of OCT and co-registered OCT and SHG warrants further investigation.
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Affiliation(s)
- Weston A Welge
- The University of Arizona, College of Optical Sciences, 1630 E. University Blvd. Tucson, AZ 85721, 303-875-5632
| | - Andrew T DeMarco
- The University of Arizona, Department of Speech, Language, and Hearing Sciences, 1131 E. 2nd St. Tucson, AZ 85721, 267-474-0513
| | - Jennifer M Watson
- The University of Arizona, Department of Biomedical Engineering, 1657 E. Helen St. Tucson, AZ 85721, 520-626-2917
| | - Photini S Rice
- The University of Arizona, Department of Biomedical Engineering, 1657 E. Helen St. Tucson, AZ 85721, 520-626-4463
| | - Jennifer K Barton
- The University of Arizona, College of Optical Sciences, Department of Biomedical Engineering, 1657 E. Helen St. Tucson, AZ 85721, 520-626-4116
| | - Matthew A Kupinski
- The University of Arizona, College of Optical Sciences, 1630 E. University Blvd. Tucson, AZ 85721, 520-621-2967
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Adur J, Carvalho HF, Cesar CL, Casco VH. Nonlinear optical microscopy signal processing strategies in cancer. Cancer Inform 2014; 13:67-76. [PMID: 24737930 PMCID: PMC3981479 DOI: 10.4137/cin.s12419] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2013] [Revised: 03/02/2014] [Accepted: 03/03/2014] [Indexed: 02/06/2023] Open
Abstract
This work reviews the most relevant present-day processing methods used to improve the accuracy of multimodal nonlinear images in the detection of epithelial cancer and the supporting stroma. Special emphasis has been placed on methods of non linear optical (NLO) microscopy image processing such as: second harmonic to autofluorescence ageing index of dermis (SAAID), tumor-associated collagen signatures (TACS), fast Fourier transform (FFT) analysis, and gray level co-occurrence matrix (GLCM)-based methods. These strategies are presented as a set of potential valuable diagnostic tools for early cancer detection. It may be proposed that the combination of NLO microscopy and informatics based image analysis approaches described in this review (all carried out on free software) may represent a powerful tool to investigate collagen organization and remodeling of extracellular matrix in carcinogenesis processes.
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Affiliation(s)
- Javier Adur
- Microscopy Laboratory Applied to Molecular and Cellular Studies, Bioengineering School, National University of Entre Rios, Oro Verde, Entre Rios, Argentina. ; INFABiC-National Institute of Science and Technology on Photonics Applied to Cell Biology, Campinas, São Paulo, Brazil
| | - Hernandes F Carvalho
- INFABiC-National Institute of Science and Technology on Photonics Applied to Cell Biology, Campinas, São Paulo, Brazil
| | - Carlos L Cesar
- INFABiC-National Institute of Science and Technology on Photonics Applied to Cell Biology, Campinas, São Paulo, Brazil
| | - Víctor H Casco
- Microscopy Laboratory Applied to Molecular and Cellular Studies, Bioengineering School, National University of Entre Rios, Oro Verde, Entre Rios, Argentina
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21
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Adur J, Bianchi M, Pelegati VB, Viale S, Izaguirre MF, Carvalho HF, Cesar CL, Casco VH. Colon Adenocarcinoma Diagnosis in Human Samples by Multicontrast Nonlinear Optical Microscopy of Hematoxylin and Eosin Stained Histological Sections. ACTA ACUST UNITED AC 2014. [DOI: 10.4236/jct.2014.513127] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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22
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Adur J, Pelegati VB, de Thomaz AA, Baratti MO, Andrade LALA, Carvalho HF, Bottcher-Luiz F, Cesar CL. Second harmonic generation microscopy as a powerful diagnostic imaging modality for human ovarian cancer. JOURNAL OF BIOPHOTONICS 2014; 7:37-48. [PMID: 23024013 DOI: 10.1002/jbio.201200108] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2012] [Revised: 08/03/2012] [Accepted: 08/22/2012] [Indexed: 05/11/2023]
Abstract
In this study we showed that second-harmonic generation (SHG) microscopy combined with precise methods for images evaluation can be used to detect structural changes in the human ovarian stroma. Using a set of scoring methods (alignment of collagen fibers, anisotropy, and correlation), we found significant differences in the distribution and organization of collagen fibers in the stroma component of serous, mucinous, endometrioid and mixed ovarian tumors as compared with normal ovary tissue. This methodology was capable to differentiate between cancerous and healthy tissue, with clear cut distinction between normal, benign, borderline, and malignant tumors of serous type. Our results indicated that the combination of different image-analysis approaches presented here represent a powerful tool to investigate collagen organization and extracellular matrix remodeling in ovarian tumors.
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Affiliation(s)
- Javier Adur
- Biomedical Lasers Application Laboratory, Optics and Photonics Research Center, "Gleb Wataghin" Institute of Physics, State University of Campinas UNICAMP, Brazil; Microscopy Laboratory Applied to Molecular and Cellular Studies, School of Bioengineering, National University of Entre Ríos UNER, Ruta 11 Km10, Oro Verde 3101, Entre Ríos, Argentina.
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Meyer T, Schmitt M, Dietzek B, Popp J. Accumulating advantages, reducing limitations: multimodal nonlinear imaging in biomedical sciences - the synergy of multiple contrast mechanisms. JOURNAL OF BIOPHOTONICS 2013; 6:887-904. [PMID: 24259267 DOI: 10.1002/jbio.201300176] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Accepted: 11/06/2013] [Indexed: 05/29/2023]
Abstract
Multimodal nonlinear microscopy has matured during the past decades to one of the key imaging modalities in life science and biomedicine due to its unique capabilities of label-free visualization of tissue structure and chemical composition, high depth penetration, intrinsic 3D sectioning, diffraction limited resolution and low phototoxicity. This review briefly summarizes first recent advances in the field regarding the methodology, e.g., contrast mechanisms and signal characteristics used for contrast generation as well as novel image processing approaches. The second part deals with technologic developments emphasizing improvements in penetration depth, imaging speed, spatial resolution and nonlinear labeling strategies. The third part focuses on recent applications in life science fundamental research and biomedical diagnostics as well as future clinical applications.
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Affiliation(s)
- Tobias Meyer
- Institute of Physical Chemistry and Abbe Center of Photonics, Friedrich-Schiller-University Jena, Helmholtzweg 4, 07743 Jena, Germany
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24
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Watson JM, Marion SL, Rice PF, Bentley DL, Besselsen DG, Utzinger U, Hoyer PB, Barton JK. In vivo time-serial multi-modality optical imaging in a mouse model of ovarian tumorigenesis. Cancer Biol Ther 2013; 15:42-60. [PMID: 24145178 DOI: 10.4161/cbt.26605] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Identification of the early microscopic changes associated with ovarian cancer may lead to development of a diagnostic test for high-risk women. In this study we use optical coherence tomography (OCT) and multiphoton microscopy (MPM) (collecting both two photon excited fluorescence [TPEF] and second harmonic generation [SHG]) to image mouse ovaries in vivo at multiple time points. We demonstrate the feasibility of imaging mouse ovaries in vivo during a long-term survival study and identify microscopic changes associated with early tumor development. These changes include alterations in tissue microstructure, as seen by OCT, alterations in cellular fluorescence and morphology, as seen by TPEF, and remodeling of collagen structure, as seen by SHG. These results suggest that a combined OCT-MPM system may be useful for early detection of ovarian cancer.
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Affiliation(s)
| | - Samuel L Marion
- Physiology Department; University of Arizona; Tucson, AZ USA
| | - Photini F Rice
- Biomedical Engineering; University of Arizona; Tucson, AZ USA
| | - David L Bentley
- Biomedical Engineering; University of Arizona; Tucson, AZ USA
| | | | - Urs Utzinger
- Biomedical Engineering; University of Arizona; Tucson, AZ USA
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Watson JM, Marion SL, Rice PF, Utzinger U, Brewer MA, Hoyer PB, Barton JK. Two-photon excited fluorescence imaging of endogenous contrast in a mouse model of ovarian cancer. Lasers Surg Med 2013; 45:155-66. [PMID: 23362124 DOI: 10.1002/lsm.22115] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/03/2013] [Indexed: 11/10/2022]
Abstract
BACKGROUND AND OBJECTIVE Ovarian cancer has an extremely high mortality rate resulting from poor understanding of the disease. In order to aid understanding of disease etiology and progression, we identify the endogenous fluorophores present in a mouse model of ovarian cancer and describe changes in fluorophore abundance and distribution with age and disease. STUDY DESIGN/MATERIALS AND METHODS A mouse model of ovarian cancer was created by dosing with 4-vinylcyclohexene diepoxide, which induces follicular apoptosis (simulating menopause), and 7,12-dimethylbenz[a]anthracene, a known carcinogen. Imaging of ovarian tissue was completed ex vivo with a multiphoton microscope using excitation wavelength of 780 nm and emission collection from 405 to 505 nm. Two-photon excited fluorescence images and corresponding histologic sections with selective stains were used to identify endogenous fluorophores. RESULTS The majority of collected fluorescence emission was attributed to NADH and lipofuscin, with additional contributions from collagen and elastin. Dim cellular fluorescence from NADH did not show observable changes with age. Changes in ovarian morphology with disease development frequently caused increased fluorescence contributions from collagen and adipose tissue-associated NADH. Lipofuscin fluorescence was much brighter than NADH fluorescence and increased as a function of both age and disease. CONCLUSIONS Our finding of NADH fluorescence patterns similar to that seen previously in human ovary, combined with the observation of lipofuscin accumulation with age and disease also seen in human organs, suggests that the findings from this model may be relevant to human ovarian disease. Increased lipofuscin fluorescence might be used as an indicator of disease in the ovary and this finding warrants further study.
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26
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Adur J, Pelegati VB, de Thomaz AA, Baratti MO, Almeida DB, Andrade LALA, Bottcher-Luiz F, Carvalho HF, Cesar CL. Optical biomarkers of serous and mucinous human ovarian tumor assessed with nonlinear optics microscopies. PLoS One 2012; 7:e47007. [PMID: 23056557 PMCID: PMC3466244 DOI: 10.1371/journal.pone.0047007] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2012] [Accepted: 09/11/2012] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Nonlinear optical (NLO) microscopy techniques have potential to improve the early detection of epithelial ovarian cancer. In this study we showed that multimodal NLO microscopies, including two-photon excitation fluorescence (TPEF), second-harmonic generation (SHG), third-harmonic generation (THG) and fluorescence lifetime imaging microscopy (FLIM) can detect morphological and metabolic changes associated with ovarian cancer progression. METHODOLOGY/PRINCIPAL FINDINGS We obtained strong TPEF + SHG + THG signals from fixed samples stained with Hematoxylin & Eosin (H&E) and robust FLIM signal from fixed unstained samples. Particularly, we imaged 34 ovarian biopsies from different patients (median age, 49 years) including 5 normal ovarian tissue, 18 serous tumors and 11 mucinous tumors with the multimodal NLO platform developed in our laboratory. We have been able to distinguish adenomas, borderline, and adenocarcinomas specimens. Using a complete set of scoring methods we found significant differences in the content, distribution and organization of collagen fibrils in the stroma as well as in the morphology and fluorescence lifetime from epithelial ovarian cells. CONCLUSIONS/SIGNIFICANCE NLO microscopes provide complementary information about tissue microstructure, showing distinctive patterns for serous and mucinous ovarian tumors. The results provide a basis to interpret future NLO images of ovarian tissue and lay the foundation for future in vivo optical evaluation of premature ovarian lesions.
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MESH Headings
- Adenocarcinoma, Mucinous/diagnosis
- Adenocarcinoma, Mucinous/metabolism
- Adenocarcinoma, Mucinous/pathology
- Biomarkers, Tumor/metabolism
- Carcinoma, Ovarian Epithelial
- Female
- Humans
- Microscopy
- Microscopy, Fluorescence, Multiphoton
- Middle Aged
- Neoplasms, Glandular and Epithelial/diagnosis
- Neoplasms, Glandular and Epithelial/metabolism
- Neoplasms, Glandular and Epithelial/pathology
- Ovarian Neoplasms/diagnosis
- Ovarian Neoplasms/metabolism
- Ovarian Neoplasms/pathology
- Ovary/metabolism
- Ovary/pathology
- Serum/metabolism
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Affiliation(s)
- Javier Adur
- Biophotonic Group, Optics and Photonics Research Center (CEPOF), Institute of Physics Gleb Wataghin, State University of Campinas - UNICAMP, Campinas, São Paulo, Brazil.
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27
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Adur J, Pelegati VB, de Thomaz AA, D'Souza-Li L, Assunção MDC, Bottcher-Luiz F, Andrade LALA, Cesar CL. Quantitative changes in human epithelial cancers and osteogenesis imperfecta disease detected using nonlinear multicontrast microscopy. JOURNAL OF BIOMEDICAL OPTICS 2012; 17:081407-1. [PMID: 23224168 DOI: 10.1117/1.jbo.17.8.081407] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
We show that combined multimodal nonlinear optical (NLO) microscopies, including two-photon excitation fluorescence, second-harmonic generation (SHG), third harmonic generation, and fluorescence lifetime imaging microscopy (FLIM) can be used to detect morphological and metabolic changes associated with stroma and epithelial transformation during the progression of cancer and osteogenesis imperfecta (OI) disease. NLO microscopes provide complementary information about tissue microstructure, showing distinctive patterns for different types of human breast cancer, mucinous ovarian tumors, and skin dermis of patients with OI. Using a set of scoring methods (anisotropy, correlation, uniformity, entropy, and lifetime components), we found significant differences in the content, distribution and organization of collagen fibrils in the stroma of breast and ovary as well as in the dermis of skin. We suggest that our results provide a framework for using NLO techniques as a clinical diagnostic tool for human cancer and OI. We further suggest that the SHG and FLIM metrics described could be applied to other connective or epithelial tissue disorders that are characterized by abnormal cells proliferation and collagen assembly.
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Affiliation(s)
- Javier Adur
- State University of Campinas (UNICAMP), "Gleb Wataghin" Institute of Physics, Optics and Photonics Research Center, Biomedical Lasers Application Laboratory, Brazil.
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28
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Watson JM, Rice PF, Marion SL, Brewer MA, Davis JR, Rodriguez JJ, Utzinger U, Hoyer PB, Barton JK. Analysis of second-harmonic-generation microscopy in a mouse model of ovarian carcinoma. JOURNAL OF BIOMEDICAL OPTICS 2012; 17:076002. [PMID: 22894485 PMCID: PMC3389559 DOI: 10.1117/1.jbo.17.7.076002] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2012] [Revised: 04/25/2012] [Accepted: 05/18/2012] [Indexed: 05/23/2023]
Abstract
Second-harmonic-generation (SHG) imaging of mouse ovaries ex vivo was used to detect collagen structure changes accompanying ovarian cancer development. Dosing with 4-vinylcyclohexene diepoxide and 7,12-dimethylbenz[a]anthracene resulted in histologically confirmed cases of normal, benign abnormality, dysplasia, and carcinoma. Parameters for each SHG image were calculated using the Fourier transform matrix and gray-level co-occurrence matrix (GLCM). Cancer versus normal and cancer versus all other diagnoses showed the greatest separation using the parameters derived from power in the highest-frequency region and GLCM energy. Mixed effects models showed that these parameters were significantly different between cancer and normal (P<0.008). Images were classified with a support vector machine, using 25% of the data for training and 75% for testing. Utilizing all images with signal greater than the noise level, cancer versus not-cancer specimens were classified with 81.2% sensitivity and 80.0% specificity, and cancer versus normal specimens were classified with 77.8% sensitivity and 79.3% specificity. Utilizing only images with greater than of 75% of the field of view containing signal improved sensitivity and specificity for cancer versus normal to 81.5% and 81.1%. These results suggest that using SHG to visualize collagen structure in ovaries could help with early cancer detection.
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Affiliation(s)
- Jennifer M. Watson
- University of Arizona, Biomedical Engineering, 1657 E. Helen Street, Building 240, P.O. Box 210240, Tucson, Arizona 85721
| | - Photini F. Rice
- University of Arizona, Biomedical Engineering, 1657 E. Helen Street, Building 240, P.O. Box 210240, Tucson, Arizona 85721
| | - Samuel L. Marion
- University of Arizona, Department of Physiology, Basic Sciences, Room 4122, 1501 N. Campbell Avenue, P.O. Box 245051, Tucson, Arizona 85724-5051
| | - Molly A. Brewer
- University of Connecticut Health Center, Carole and Ray Neag Comprehensive Cancer Center, Division of Gynecologic Oncology, 263 Farmington Avenue, MC 1614, Farmington, Connecticut 06030-2875
| | - John R. Davis
- University of Arizona, Department of Pathology, Tucson, Arizona
| | - Jeffrey J. Rodriguez
- University of Arizona, Electrical/Computer Engineering, P.O. Box 210104, Tucson, Arizona
| | - Urs Utzinger
- University of Arizona, Biomedical Engineering, 1657 E. Helen Street, Building 240, P.O. Box 210240, Tucson, Arizona 85721
| | - Patricia B. Hoyer
- University of Arizona, Department of Physiology, Basic Sciences, Room 4122, 1501 N. Campbell Avenue, P.O. Box 245051, Tucson, Arizona 85724-5051
| | - Jennifer K. Barton
- University of Arizona, Biomedical Engineering, 1657 E. Helen Street, Building 240, P.O. Box 210240, Tucson, Arizona 85721
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Pelegati VB, Adur J, De Thomaz AA, Almeida DB, Baratti MO, Andrade LALA, Bottcher-luiz F, Cesar CL. Harmonic optical microscopy and fluorescence lifetime imaging platform for multimodal imaging. Microsc Res Tech 2012; 75:1383-94. [DOI: 10.1002/jemt.22078] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2011] [Accepted: 04/28/2012] [Indexed: 11/12/2022]
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