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Chen MC, Govindaraju I, Wang WH, Chen WL, Mumbrekar KD, Mal SS, Sarmah B, Baruah VJ, Srisungsitthisunti P, Karunakara N, Mazumder N, Zhuo GY. Revealing the Structural Organization of Gamma-irradiated Starch Granules Using Polarization-resolved Second Harmonic Generation Microscopy. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2023; 29:1450-1459. [PMID: 37488816 DOI: 10.1093/micmic/ozad058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 04/12/2023] [Accepted: 04/24/2023] [Indexed: 07/26/2023]
Abstract
Starch is a semi-crystalline macromolecule with the presence of amorphous and crystalline components. The amorphous amylose and crystalline amylopectin regions in starch granules are susceptible to certain physical modifications, such as gamma irradiation. Polarization-resolved second harmonic generation (P-SHG) microscopy in conjunction with SHG-circular dichroism (CD) was used to assess the three-dimensional molecular order and inherent chirality of starch granules and their reaction to different dosages of gamma irradiation. For the first time, the relationship between starch achirality (χ21/χ16 and χ22/χ16) and chirality (χ14/χ16) determining susceptibility tensor ratios has been elucidated. The results showed that changes in the structure and orientation of long-chain amylopectin were supported by the decrease in the SHG anisotropy factor and the χ22/χ16 ratio. Furthermore, SHG-CD illustrated the molecular tilt angle by revealing the arrangement of amylopectin molecules pointing either upward or downward owing to molecular polarity.
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Affiliation(s)
- Ming-Chi Chen
- Institute of Translational Medicine and New Drug Development, College of Medicine, China Medical University, No. 91, Xueshi Rd., North Dist., Taichung 404333, Taiwan (R.O.C.)
| | - Indira Govindaraju
- Department of Biophysics, Manipal School of Life Sciences, Manipal Academy of Higher Education, Planetarium complex, Udupi Dist., Manipal, Karnataka, India
| | - Wei-Hsun Wang
- Institute of Translational Medicine and New Drug Development, College of Medicine, China Medical University, No. 91, Xueshi Rd., North Dist., Taichung 404333, Taiwan (R.O.C.)
| | - Wei-Liang Chen
- Center for Condensed Matter Sciences, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Da'an Dist., Taipei 106319, Taiwan (R.O.C.)
| | - Kamalesh Dattaram Mumbrekar
- Department of Radiation Biology and Toxicology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Planetarium complex, Udupi Dist., Manipal, Karnataka, India
| | - Sib Sankar Mal
- Materials and Catalysis Lab, Department of Chemistry, National Institute of Technology Karnataka, Surathkal, Mangalore Dist., Karnataka, 575025, India
| | - Bhaswati Sarmah
- Department of Plant Breeding and Genetics, Assam Agricultural University, Jorhat, Assam 785013, India
| | - Vishwa Jyoti Baruah
- Department of Bioinformatics, Dibrugarh University, Dibrugarh, Assam 786004, India
| | - Pornsak Srisungsitthisunti
- Department of Production Engineering, Faculty of Engineering, King Mongkut's University of Technology North Bangkok, Bangkok 10800, Thailand
| | - Naregundi Karunakara
- Centre for Application of Radioisotopes and Radiation Technology (CARRT), Mangalore University, Mangalore 574199, India
- Center for Advanced Research in Environmental Radioactivity (CARER), Mangalore University, Mangalore 574199, India
| | - Nirmal Mazumder
- Department of Biophysics, Manipal School of Life Sciences, Manipal Academy of Higher Education, Planetarium complex, Udupi Dist., Manipal, Karnataka, India
| | - Guan-Yu Zhuo
- Institute of Translational Medicine and New Drug Development, College of Medicine, China Medical University, No. 91, Xueshi Rd., North Dist., Taichung 404333, Taiwan (R.O.C.)
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2
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Kaniyala Melanthota S, Kistenev YV, Borisova E, Ivanov D, Zakharova O, Boyko A, Vrazhnov D, Gopal D, Chakrabarti S, K SP, Mazumder N. Types of spectroscopy and microscopy techniques for cancer diagnosis: a review. Lasers Med Sci 2022; 37:3067-3084. [PMID: 35834141 PMCID: PMC9525344 DOI: 10.1007/s10103-022-03610-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 07/05/2022] [Indexed: 11/25/2022]
Abstract
Cancer is a life-threatening disease that has claimed the lives of many people worldwide. With the current diagnostic methods, it is hard to determine cancer at an early stage, due to its versatile nature and lack of genomic biomarkers. The rapid development of biophotonics has emerged as a potential tool in cancer detection and diagnosis. Using the fluorescence, scattering, and absorption characteristics of cells and tissues, it is possible to detect cancer at an early stage. The diagnostic techniques addressed in this review are highly sensitive to the chemical and morphological changes in the cell and tissue during disease progression. These changes alter the fluorescence signal of the cell/tissue and are detected using spectroscopy and microscopy techniques including confocal and two-photon fluorescence (TPF). Further, second harmonic generation (SHG) microscopy reveals the morphological changes that occurred in non-centrosymmetric structures in the tissue, such as collagen. Again, Raman spectroscopy is a non-destructive method that provides a fingerprinting technique to differentiate benign and malignant tissue based on Raman signal. Photoacoustic microscopy and spectroscopy of tissue allow molecule-specific detection with high spatial resolution and penetration depth. In addition, terahertz spectroscopic studies reveal the variation of tissue water content during disease progression. In this review, we address the applications of spectroscopic and microscopic techniques for cancer detection based on the optical properties of the tissue. The discussed state-of-the-art techniques successfully determines malignancy to its rapid diagnosis.
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Affiliation(s)
- Sindhoora Kaniyala Melanthota
- Department of Biophysics, Manipal School of Life Sciences, Manipal Academy of Higher Education, Karnataka, 576104, Manipal, India
| | - Yury V Kistenev
- Laboratory of Biophotonics, Tomsk State University, Tomsk, 634050, Russia
- Central Research Laboratory, Siberian State Medical University, Tomsk, 634050, Russia
| | - Ekaterina Borisova
- Laboratory of Biophotonics, Institute of Electronics, Bulgarian Academy of Sciences, Tsarigradsko Chaussee Blvd, 72, 1784, Sofia, Bulgaria.
- Biology Faculty, Saratov State University, 83, Astrakhanskaya Str, 410012, Saratov, Russia.
| | - Deyan Ivanov
- Laboratory of Biophotonics, Institute of Electronics, Bulgarian Academy of Sciences, Tsarigradsko Chaussee Blvd, 72, 1784, Sofia, Bulgaria
| | - Olga Zakharova
- Laboratory of Biophotonics, Tomsk State University, Tomsk, 634050, Russia
| | - Andrey Boyko
- Laboratory of Biophotonics, Tomsk State University, Tomsk, 634050, Russia
| | - Denis Vrazhnov
- Laboratory of Biophotonics, Tomsk State University, Tomsk, 634050, Russia
| | - Dharshini Gopal
- Department of Biophysics, Manipal School of Life Sciences, Manipal Academy of Higher Education, Karnataka, 576104, Manipal, India
| | - Shweta Chakrabarti
- Department of Biophysics, Manipal School of Life Sciences, Manipal Academy of Higher Education, Karnataka, 576104, Manipal, India
| | - Shama Prasada K
- Department of Cell and Molecular Biology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Karnataka, 576104, Manipal, India
| | - Nirmal Mazumder
- Department of Biophysics, Manipal School of Life Sciences, Manipal Academy of Higher Education, Karnataka, 576104, Manipal, India.
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Xu S, Rowlette J, Lee YJ. Imaging 3D molecular orientation by orthogonal-pair polarization IR microscopy. OPTICS EXPRESS 2022; 30:8436-8447. [PMID: 35299296 DOI: 10.1364/oe.449667] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 02/14/2022] [Indexed: 06/14/2023]
Abstract
Anisotropic molecular alignment occurs ubiquitously and often heterogeneously in three dimensions (3D). However, conventional imaging approaches based on polarization can map only molecular orientation projected onto the 2D polarization plane. Here, an algorithm converts conventional polarization-controlled infrared (IR) hyperspectral data into images of the 3D angles of molecular orientations. The polarization-analysis algorithm processes a pair of orthogonal IR transition-dipole modes concurrently; in contrast, conventional approaches consider individual IR modes separately. The orthogonal-pair polarization IR (OPPIR) method, introduced theoretically but never demonstrated experimentally, was used to map the 3D orientation angles and the order parameter of the local orientational distribution of polymer chains in a poly(ε-caprolactone) film. The OPPIR results show that polymer chains in the semicrystalline film are aligned azimuthally perpendicular to the radial direction of a spherulite and axially tilted from the film normal direction. This newly available information on the local alignments in continuously distributed molecules helps to understand the molecular-level structure of highly anisotropic and spatially heterogeneous materials.
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Govindaraju I, Zhuo GY, Chakraborty I, Melanthota SK, Mal SS, Sarmah B, Baruah VJ, Mahato KK, Mazumder N. Investigation of structural and physico-chemical properties of rice starch with varied amylose content: A combined microscopy, spectroscopy, and thermal study. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2021.107093] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Johnson PB, Karvounis A, Singh HJ, Brereton CJ, Bourdakos KN, Lunn K, Roberts JJW, Davies DE, Muskens OL, Jones MG, Mahajan S. Superresolved polarization-enhanced second-harmonic generation for direct imaging of nanoscale changes in collagen architecture. OPTICA 2021; 8:674-685. [PMID: 34239949 PMCID: PMC8237832 DOI: 10.1364/optica.411325] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 02/06/2021] [Accepted: 03/16/2021] [Indexed: 05/06/2023]
Abstract
Superresolution (SR) optical microscopy has allowed the investigation of many biological structures below the diffraction limit; however, most of the techniques are hampered by the need for fluorescent labels. Nonlinear label-free techniques such as second-harmonic generation (SHG) provide structurally specific contrast without the addition of exogenous labels, allowing observation of unperturbed biological systems. We use the photonic nanojet (PNJ) phenomena to achieve SR-SHG. A resolution of ∼ λ / 6 with respect to the fundamental wavelength, that is, a ∼ 2.3 -fold improvement over conventional or diffraction-limited SHG under the same imaging conditions is achieved. Crucially we find that the polarization properties of excitation are maintained in a PNJ. This is observed in experiment and simulations. This may have widespread implications to increase sensitivity by detection of polarization-resolved SHG by observing anisotropy in signals. These new, to the best of our knowledge, findings allowed us to visualize biological SHG-active structures such as collagen at an unprecedented and previously unresolvable spatial scale. Moreover, we demonstrate that the use of an array of self-assembled high-index spheres overcomes the issue of a limited field of view for such a method, allowing PNJ-assisted SR-SHG to be used over a large area. Dysregulation of collagen at the nanoscale occurs in many diseases and is an underlying cause in diseases such as lung fibrosis. Here we demonstrate that pSR-SHG allows unprecedented observation of changes at the nanoscale that are invisible by conventional diffraction-limited SHG imaging. The ability to nondestructively image SHG-active biological structures without labels at the nanoscale with a relatively simple optical method heralds the promise of a new tool to understand biological phenomena and drive drug discovery.
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Affiliation(s)
- Peter B. Johnson
- School of Chemistry, Faculty of Engineering and Physical Sciences, University of Southampton, Southampton, UK
- Institute for Life Sciences, University of Southampton, Southampton, UK
| | - Artemios Karvounis
- Optoelectronics Research Centre and Centre for Photonic Metamaterials, University of Southampton, Southampton, UK
| | - H. Johnson Singh
- Physics and Astronomy, Faculty of Engineering and Physical Sciences, University of Southampton, Southampton, UK
| | - Christopher J. Brereton
- NIHR Southampton Biomedical Research Centre, University Hospitals Southampton, Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Konstantinos N. Bourdakos
- School of Chemistry, Faculty of Engineering and Physical Sciences, University of Southampton, Southampton, UK
- Institute for Life Sciences, University of Southampton, Southampton, UK
| | - Kerry Lunn
- Synairgen Research Ltd., Southampton, UK
| | | | - Donna E. Davies
- Institute for Life Sciences, University of Southampton, Southampton, UK
- NIHR Southampton Biomedical Research Centre, University Hospitals Southampton, Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Otto L. Muskens
- Physics and Astronomy, Faculty of Engineering and Physical Sciences, University of Southampton, Southampton, UK
| | - Mark G. Jones
- Institute for Life Sciences, University of Southampton, Southampton, UK
- NIHR Southampton Biomedical Research Centre, University Hospitals Southampton, Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Sumeet Mahajan
- School of Chemistry, Faculty of Engineering and Physical Sciences, University of Southampton, Southampton, UK
- Institute for Life Sciences, University of Southampton, Southampton, UK
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6
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Dunn KW, Molitoris BA, Dagher PC. The Indiana O'Brien Center for Advanced Renal Microscopic Analysis. Am J Physiol Renal Physiol 2021; 320:F671-F682. [PMID: 33682441 DOI: 10.1152/ajprenal.00007.2021] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
The Indiana O'Brien Center for Advanced Microscopic Analysis is a National Institutes of Health (NIH) P30-funded research center dedicated to the development and dissemination of advanced methods of optical microscopy to support renal researchers throughout the world. The Indiana O'Brien Center was founded in 2002 as an NIH P-50 project with the original goal of helping researchers realize the potential of intravital multiphoton microscopy as a tool for understanding renal physiology and pathophysiology. The center has since expanded into the development and implementation of large-scale, high-content tissue cytometry. The advanced imaging capabilities of the center are made available to renal researchers worldwide via collaborations and a unique fellowship program. Center outreach is accomplished through an enrichment core that oversees a seminar series, an informational website, and a biennial workshop featuring hands-on training from members of the Indiana O'Brien Center and imaging experts from around the world.
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Affiliation(s)
- Kenneth W Dunn
- Division of Nephrology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Bruce A Molitoris
- Division of Nephrology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Pierre C Dagher
- Division of Nephrology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
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7
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Blake MJ, Colon BA, Calhoun TR. Leaving the Limits of Linearity for Light Microscopy. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2020; 124:24555-24565. [PMID: 34306294 PMCID: PMC8301257 DOI: 10.1021/acs.jpcc.0c07501] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Nonlinear microscopy has enabled additional modalities for chemical contrast, deep penetration into biological tissues, and the ability to collect dynamics on ultrafast timescales across heterogenous samples. The additional light fields introduced to a sample offer seemingly endless possibilities for variation to optimize and customize experimentation and the extraction of physical insight. This perspective highlights three areas of growth in this diverse field: the collection of information across multiple timescales, the selective imaging of interfacial chemistry, and the exploitation of quantum behavior for future imaging directions. Future innovations will leverage the work of the studies reviewed here as well as address the current challenges presented.
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Affiliation(s)
- Marea J Blake
- Department of Chemistry, University of Tennessee, Knoxville, TN 37996
| | - Brandon A Colon
- Department of Chemistry, University of Tennessee, Knoxville, TN 37996
| | - Tessa R Calhoun
- Department of Chemistry, University of Tennessee, Knoxville, TN 37996
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8
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James DS, Jambor AN, Chang HY, Alden Z, Tilbury KB, Sandbo NK, Campagnola PJ. Probing ECM remodeling in idiopathic pulmonary fibrosis via second harmonic generation microscopy analysis of macro/supramolecular collagen structure. JOURNAL OF BIOMEDICAL OPTICS 2019; 25:1-13. [PMID: 31785093 PMCID: PMC7008503 DOI: 10.1117/1.jbo.25.1.014505] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Accepted: 11/06/2019] [Indexed: 05/06/2023]
Abstract
Idiopathic pulmonary fibrosis (IPF) is a progressive disease with poor prognosis with short lifespan following diagnosis as patients have limited effective treatment options. A fundamental limitation is a lack of knowledge of the underlying collagen alterations in the disease, as this could lead to better diagnostics, prognostics, and measures of treatment efficacy. While the fibroses is the primary presentation of the disease, the collagen architecture has not been well studied beyond standard histology. Here, we used several metrics based on second harmonic generation (SHG) microscopy and optical scattering measurements to characterize the subresolution collagen assembly in human IPF and normal lung tissues. Using SHG directional analysis, we found that while collagen synthesis is increased in IPF, the resulting average fibril architecture is more disordered than in normal tissue. Wavelength-dependent optical scattering measurements lead to the same conclusion, and both optical approaches are consistent with ultrastructural analysis. SHG circular dichroism revealed significant differences in the net chirality between the fibrotic and normal collagen, where the former has a more randomized helical structure. Collectively, the measurements reveal significant changes in the collagen macro/supramolecular structure in the abnormal fibrotic collagen, and we suggest these alterations can serve as biomarkers for IPF diagnosis and progression.
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Affiliation(s)
- Darian S. James
- University of Wisconsin–Madison, Department of Biomedical Engineering, Madison, Wisconsin, United States
| | - Alexander N. Jambor
- University of Wisconsin–Madison, Department of Biomedical Engineering, Madison, Wisconsin, United States
| | - Hsin-Yu Chang
- University of Wisconsin–Madison, Department of Biomedical Engineering, Madison, Wisconsin, United States
| | - Zachary Alden
- University of Wisconsin–Madison, Department of Biomedical Engineering, Madison, Wisconsin, United States
| | - Karissa B. Tilbury
- University of Wisconsin–Madison, Department of Biomedical Engineering, Madison, Wisconsin, United States
| | - Nathan K. Sandbo
- University of Wisconsin–Madison, Division of Allergy, Pulmonary, and Critical Care Medicine, Madison, Wisconsin, United States
| | - Paul J. Campagnola
- University of Wisconsin–Madison, Department of Biomedical Engineering, Madison, Wisconsin, United States
- Address all correspondence to Paul J. Campagnola, E-mail:
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9
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Scodellaro R, Bouzin M, Mingozzi F, D'Alfonso L, Granucci F, Collini M, Chirico G, Sironi L. Whole-Section Tumor Micro-Architecture Analysis by a Two-Dimensional Phasor-Based Approach Applied to Polarization-Dependent Second Harmonic Imaging. Front Oncol 2019; 9:527. [PMID: 31275857 PMCID: PMC6593899 DOI: 10.3389/fonc.2019.00527] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Accepted: 05/30/2019] [Indexed: 11/17/2022] Open
Abstract
Second Harmonic Generation (SHG) microscopy has gained much interest in the histopathology field since it allows label-free imaging of tissues simultaneously providing information on their morphology and on the collagen microarchitecture, thereby highlighting the onset of pathologies and diseases. A wide request of image analysis tools is growing, with the aim to increase the reliability of the analysis of the huge amount of acquired data and to assist pathologists in a user-independent way during their diagnosis. In this light, we exploit here a set of phasor-parameters that, coupled to a 2-dimensional phasor-based approach (μMAPPS, Microscopic Multiparametric Analysis by Phasor projection of Polarization-dependent SHG signal) and a clustering algorithm, allow to automatically recover different collagen microarchitectures in the tissues extracellular matrix. The collagen fibrils microscopic parameters (orientation and anisotropy) are analyzed at a mesoscopic level by quantifying their local spatial heterogeneity in histopathology sections (few mm in size) from two cancer xenografts in mice, in order to maximally discriminate different collagen organizations, allowing in this case to identify the tumor area with respect to the surrounding skin tissue. We show that the "fibril entropy" parameter, which describes the tissue order on a selected spatial scale, is the most effective in enlightening the tumor edges, opening the possibility of their automatic segmentation. Our method, therefore, combined with tissue morphology information, has the potential to become a support to standard histopathology in diseases diagnosis.
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Affiliation(s)
| | - Margaux Bouzin
- Physics Department, Università degli Studi di Milano-Bicocca, Milan, Italy
| | - Francesca Mingozzi
- Department of Biotechnology and Biosciences, Università degli Studi di Milano-Bicocca, Milan, Italy
| | - Laura D'Alfonso
- Physics Department, Università degli Studi di Milano-Bicocca, Milan, Italy
| | - Francesca Granucci
- Department of Biotechnology and Biosciences, Università degli Studi di Milano-Bicocca, Milan, Italy
| | - Maddalena Collini
- Physics Department, Università degli Studi di Milano-Bicocca, Milan, Italy
| | - Giuseppe Chirico
- Physics Department, Università degli Studi di Milano-Bicocca, Milan, Italy
| | - Laura Sironi
- Physics Department, Università degli Studi di Milano-Bicocca, Milan, Italy
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10
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Dravid U A, Mazumder N. Types of advanced optical microscopy techniques for breast cancer research: a review. Lasers Med Sci 2018; 33:1849-1858. [PMID: 30311083 DOI: 10.1007/s10103-018-2659-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Accepted: 10/01/2018] [Indexed: 10/28/2022]
Abstract
A cancerous cell is characterized by morphological and metabolic changes which are the key features of carcinogenesis. Adenosine triphosphate (ATP) in cancer cells is primarily produced by aerobic glycolysis rather than oxidative phosphorylation. In normal cellular metabolism, nicotinamide adenine dinucleotide (NADH) is considered as a principle electron donor and flavin adenine dinucleotide (FAD) as an electron acceptor. During metabolism in a cancerous cell, a net increase in NADH is found as the pathway switched from oxidative phosphorylation to aerobic glycolysis. Often during initiation and progression of cancer, the developmental regulation of extracellular matrix (ECM) is restricted and becomes disorganized. Tumor cell behavior is regulated by the ECM in the tumor micro environment. Collagen, which forms the scaffold of tumor micro-environment also influences its behavior. Advanced optical microscopy techniques are useful for determining the metabolic characteristics of cancerous, normal cells and tissues. They can be used to identify the collagen microstructure and the function of NADH, FAD, and lipids in living system. In this review article, various optical microscopy techniques applied for breast cancer research are discussed including fluorescence, confocal, second harmonic generation (SHG), coherent anti-Stokes Raman scattering (CARS), and fluorescence lifetime imaging (FLIM).
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Affiliation(s)
- Aparna Dravid U
- Department of Biophysics, School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Nirmal Mazumder
- Department of Biophysics, School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India.
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11
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Dunn KW, Day RN. Imaging cell biology and physiology in vivo using intravital microscopy. Methods 2018; 128:1-2. [PMID: 28911732 DOI: 10.1016/j.ymeth.2017.08.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Affiliation(s)
- Kenneth W Dunn
- Departments of Medicine and Biochemistry, Research II, Suite E202, 950 W Walnut St, Indianapolis, United States
| | - Richard N Day
- Department of Cellular and Integrative Physiology, Indiana University School of Medicine, 635 Barnhill Drive, MS 333, Indianapolis, IN 46202, USA
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12
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Ge B, Zhou R, Takiguchi Y, Yaqoob Z, So PTC. Single-Shot Optical Anisotropy Imaging with Quantitative Polarization Interference Microscopy. LASER & PHOTONICS REVIEWS 2018; 12:1800070. [PMID: 30899335 PMCID: PMC6424346 DOI: 10.1002/lpor.201800070] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Indexed: 06/01/2023]
Abstract
Optical anisotropy measurement is essential for material characterization and biological imaging. In order to achieve single-shot mapping of the birefringence parameters of anisotropic samples, a novel polarized light imaging concept is proposed, namely quantitative polarization interference microscopy (QPIM). QPIM can be realized through designing a compact polarization-resolved interference microscopy system that captures interferograms bearing sample's linear birefringence information. To extract the retardance and the orientation angle maps from a single-shot measurement, a mathematical model for QPIM is further developed. The QPIM system is validated by measuring a calibrated quarter-wave plate, whose fast-axis orientation angle and retardance are determined with great accuracies. The single-shot nature of QPIM further allows to measure the transient dynamics of birefringence changes in material containing anisotropic structures. This application is demonstrated by capturing transient retardance changes in a custom-designed parallel-aligned nematic liquid crystal-based device.
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Affiliation(s)
- Baoliang Ge
- Department of Mechanical Engineering Massachusetts Institute of Technology Cambridge, MA 02139, USA, Department of Biological Engineering Massachusetts Institute of Technology Cambridge, MA 02139, USA, Laser Biomedical Research Center Massachusetts Institute of Technology Cambridge, MA 02139, USA
| | - Renjie Zhou
- Department of Biomedical Engineering The Chinese University of Hong Kong Shatin, New Territories, Hong Kong SAR, China,
| | - Yu Takiguchi
- Central Research Laboratory Hamamatsu Photonics K.K Hamamatsu, Shizuoka 434-8601, Japan
| | - Zahid Yaqoob
- Laser Biomedical Research Center Massachusetts Institute of Technology Cambridge, MA 02139, USA,
| | - Peter T C So
- Department of Mechanical Engineering Massachusetts Institute of Technology Cambridge, MA 02139, USA, Department of Biological Engineering Massachusetts Institute of Technology Cambridge, MA 02139, USA, Laser Biomedical Research Center Massachusetts Institute of Technology Cambridge, MA 02139, USA
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13
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Stanciu SG, Ávila FJ, Hristu R, Bueno JM. A Study on Image Quality in Polarization-Resolved Second Harmonic Generation Microscopy. Sci Rep 2017; 7:15476. [PMID: 29133836 PMCID: PMC5684207 DOI: 10.1038/s41598-017-15257-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Accepted: 10/24/2017] [Indexed: 01/21/2023] Open
Abstract
Second harmonic generation (SHG) microscopy represents a very powerful tool for tissue characterization. Polarization-resolved SHG (PSHG) microscopy extends the potential of SHG, by exploiting the dependence of SHG signals on the polarization state of the excitation beam. Among others, this dependence translates to the fact that SHG images collected under different polarization configurations exhibit distinct characteristics in terms of content and appearance. These characteristics hold deep implications over image quality, as perceived by human observers or by image analysis methods custom designed to automatically extract a quality factor from digital images. Our work addresses this subject, by investigating how basic image properties and the outputs of no-reference image quality assessment methods correlate to human expert opinion in the case of PSHG micrographs. Our evaluation framework is based on SHG imaging of collagen-based ocular tissues under different linear and elliptical polarization states of the incident light.
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Affiliation(s)
- Stefan G Stanciu
- Center for Microscopy-Microanalysis and Information Processing, University Politehnica of Bucharest, Bucharest, Romania.
| | | | - Radu Hristu
- Center for Microscopy-Microanalysis and Information Processing, University Politehnica of Bucharest, Bucharest, Romania
| | - Juan M Bueno
- Laboratorio de Óptica, Universidad de Murcia, Murcia, Spain.
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