1
|
Kim J, Song S, Kim H, Kim B, Park M, Oh SJ, Kim D, Cense B, Huh YM, Lee JY, Joo C. Ptychographic lens-less birefringence microscopy using a mask-modulated polarization image sensor. Sci Rep 2023; 13:19263. [PMID: 37935759 PMCID: PMC10630341 DOI: 10.1038/s41598-023-46496-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 11/01/2023] [Indexed: 11/09/2023] Open
Abstract
Birefringence, an inherent characteristic of optically anisotropic materials, is widely utilized in various imaging applications ranging from material characterizations to clinical diagnosis. Polarized light microscopy enables high-resolution, high-contrast imaging of optically anisotropic specimens, but it is associated with mechanical rotations of polarizer/analyzer and relatively complex optical designs. Here, we present a form of lens-less polarization-sensitive microscopy capable of complex and birefringence imaging of transparent objects without an optical lens and any moving parts. Our method exploits an optical mask-modulated polarization image sensor and single-input-state LED illumination design to obtain complex and birefringence images of the object via ptychographic phase retrieval. Using a camera with a pixel size of 3.45 μm, the method achieves birefringence imaging with a half-pitch resolution of 2.46 μm over a 59.74 mm2 field-of-view, which corresponds to a space-bandwidth product of 9.9 megapixels. We demonstrate the high-resolution, large-area, phase and birefringence imaging capability of our method by presenting the phase and birefringence images of various anisotropic objects, including a monosodium urate crystal, and excised mouse eye and heart tissues.
Collapse
Affiliation(s)
- Jeongsoo Kim
- Department of Mechanical Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Seungri Song
- Department of Mechanical Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Hongseong Kim
- Department of Mechanical Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Bora Kim
- Department of Ophthalmology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Republic of Korea
| | - Mirae Park
- Department of Radiology, College of Medicine, Yonsei University, Seoul, 03722, Republic of Korea
| | - Seung Jae Oh
- Department of Radiology, College of Medicine, Yonsei University, Seoul, 03722, Republic of Korea
- YUHS-KRIBB Medical Convergence Research Institute, Seoul, 03722, Republic of Korea
| | - Daesuk Kim
- Department of Mechanical System Engineering, Jeonbuk National University, Jeonju, 54896, Republic of Korea
| | - Barry Cense
- Department of Mechanical Engineering, Yonsei University, Seoul, 03722, Republic of Korea
- Department of Electrical, Electronic and Computer Engineering, The University of Western Australia, Perth, WA, 6009, Australia
| | - Yong-Min Huh
- Department of Radiology, College of Medicine, Yonsei University, Seoul, 03722, Republic of Korea
- YUHS-KRIBB Medical Convergence Research Institute, Seoul, 03722, Republic of Korea
- Department of Biochemistry and Molecular Biology, College of Medicine, Yonsei University, Seoul, 03722, Republic of Korea
| | - Joo Yong Lee
- Department of Ophthalmology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Republic of Korea
| | - Chulmin Joo
- Department of Mechanical Engineering, Yonsei University, Seoul, 03722, Republic of Korea.
| |
Collapse
|
2
|
Chernomyrdin NV, Il'enkova DR, Zhelnov VA, Alekseeva AI, Gavdush AA, Musina GR, Nikitin PV, Kucheryavenko AS, Dolganova IN, Spektor IE, Tuchin VV, Zaytsev KI. Quantitative polarization-sensitive super-resolution solid immersion microscopy reveals biological tissues' birefringence in the terahertz range. Sci Rep 2023; 13:16596. [PMID: 37789192 PMCID: PMC10547778 DOI: 10.1038/s41598-023-43857-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 09/29/2023] [Indexed: 10/05/2023] Open
Abstract
Terahertz (THz) technology offers a variety of applications in label-free medical diagnosis and therapy, majority of which rely on the effective medium theory that assumes biological tissues to be optically isotropic and homogeneous at the scale posed by the THz wavelengths. Meanwhile, most recent research discovered mesoscale ([Formula: see text]) heterogeneities of tissues; [Formula: see text] is a wavelength. This posed a problem of studying the related scattering and polarization effects of THz-wave-tissue interactions, while there is still a lack of appropriate tools and instruments for such studies. To address this challenge, in this paper, quantitative polarization-sensitive reflection-mode THz solid immersion (SI) microscope is developed, that comprises a silicon hemisphere-based SI lens, metal-wire-grid polarizer and analyzer, a continuous-wave 0.6 THz ([Formula: see text] µm) backward-wave oscillator (BWO), and a Golay detector. It makes possible the study of local polarization-dependent THz response of mesoscale tissue elements with the resolution as high as [Formula: see text]. It is applied to retrieve the refractive index distributions over the freshly-excised rat brain for the two orthogonal linear polarizations of the THz beam, aimed at uncovering the THz birefringence (structural optical anisotropy) of tissues. The most pronounced birefringence is observed for the Corpus callosum, formed by well-oriented and densely-packed axons bridging the cerebral hemispheres. The observed results are verified by the THz pulsed spectroscopy of the porcine brain, which confirms higher refractive index of the Corpus callosum when the THz beam is polarized along axons. Our findings highlight a potential of the quantitative polarization THz microscopy in biophotonics and medical imaging.
Collapse
Affiliation(s)
- N V Chernomyrdin
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow, Russia, 119991.
| | - D R Il'enkova
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow, Russia, 119991
| | - V A Zhelnov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow, Russia, 119991
| | - A I Alekseeva
- Research Institute of Human Morphology, Moscow, Russia, 117418
| | - A A Gavdush
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow, Russia, 119991
| | - G R Musina
- Department of Biomedical Engineering, University of Houston, Houston, TX, USA
- Department of Integrative Physiology, Baylor College of Medicine, Houston, TX, USA
| | - P V Nikitin
- Department of Biomedical Engineering, University of Houston, Houston, TX, USA
| | - A S Kucheryavenko
- Institute of Solid State Physics of the Russian Academy of Sciences, Chernogolovka, Russia
| | - I N Dolganova
- Institute of Solid State Physics of the Russian Academy of Sciences, Chernogolovka, Russia
| | - I E Spektor
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow, Russia, 119991
| | - V V Tuchin
- Institute of Physics and Science Medical Center, Saratov State University, Saratov, Russia, 410012
- Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, Tomsk, Russia, 634050
| | - K I Zaytsev
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow, Russia, 119991.
| |
Collapse
|
3
|
Deng L, Chen C, Yu W, Shao C, Shen Z, Wang Y, He C, Li H, Liu Z, He H, Ma H. Influence of hematoxylin and eosin staining on linear birefringence measurement of fibrous tissue structures in polarization microscopy. J Biomed Opt 2023; 28:102909. [PMID: 37786544 PMCID: PMC10541683 DOI: 10.1117/1.jbo.28.10.102909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 09/14/2023] [Accepted: 09/19/2023] [Indexed: 10/04/2023]
Abstract
Significance For microscopic polarization imaging of tissue slices, two types of samples are often prepared: one unstained tissue section for polarization imaging to avoid possible influence from staining dyes quantitatively and one hematoxylin-eosin (H&E) stained adjacent tissue section for histological diagnosis and structural feature identification. However, this sample preparation strategy requires high-quality adjacent tissue sections, and labeling the structural features on unstained tissue sections is impossible. With the fast development of data driven-based polarimetric analysis, which requires a large amount of pixel labeled images, a possible method is to directly use H&E stained slices, which are standard samples archived in clinical hospitals for polarization measurement. Aim We aim to study the influence of hematoxylin and eosin staining on the linear birefringence measurement of fibrous tissue structures. Approach We examine the linear birefringence properties of four pieces of adjacent bone tissue slices with abundant collagen fibers that are unstained, H&E stained, hematoxylin (H) stained, and eosin (E) stained. After obtaining the spatial maps of linear retardance values for the four tissue samples, we carry out a comparative study using a frequency distribution histogram and similarity analysis based on the Bhattacharyya coefficient to investigate how H&E staining affects the linear birefringence measurement of bone tissues. Results Linear retardance increased after H&E, H, or E staining (41.7%, 40.8%, and 72.5% increase, respectively). However, there is no significant change in the imaging contrast of linear retardance in bone tissues. Conclusions The linear retardance values induced by birefringent collagen fibers can be enhanced after H&E, H, or E staining. However, the structural imaging contrasts based on linear retardance did not change significantly or the staining did not generate linear birefringence on the sample area without collagen. Therefore, it can be acceptable to prepare H&E stained slices for clinical applications of polarimetry based on such a mapping relationship.
Collapse
Affiliation(s)
- Liangyu Deng
- Tsinghua University, Institute of Biopharmaceutical and Health Engineering, Tsinghua Shenzhen International Graduate School, Guangdong Research Center of Polarization Imaging and Measurement Engineering Technology, Shenzhen Key Laboratory for Minimal Invasive Medical Technologies, Shenzhen, China
| | - Chunyan Chen
- Shanghai Jiao Tong University School of Medicine, Shanghai Sixth People’s Hospital, Department of Pathology, Shanghai, China
| | - Wenxi Yu
- Shanghai Jiao Tong University School of Medicine, Shanghai Sixth People’s Hospital, Department of Oncology, Shanghai, China
| | - Conghui Shao
- Tsinghua University, Department of Physics, Beijing, China
| | - Zan Shen
- Shanghai Jiao Tong University School of Medicine, Shanghai Sixth People’s Hospital, Department of Oncology, Shanghai, China
| | - Yonggang Wang
- Shanghai Jiao Tong University School of Medicine, Shanghai Sixth People’s Hospital, Department of Oncology, Shanghai, China
| | - Chao He
- University of Oxford, Department of Engineering Science, Oxford, United Kingdom
| | - Hongtao Li
- Shanghai Jiao Tong University School of Medicine, Shanghai Sixth People’s Hospital, Department of Oncology, Shanghai, China
| | - Zhiyan Liu
- Shanghai Jiao Tong University School of Medicine, Shanghai Sixth People’s Hospital, Department of Pathology, Shanghai, China
| | - Honghui He
- Tsinghua University, Institute of Biopharmaceutical and Health Engineering, Tsinghua Shenzhen International Graduate School, Guangdong Research Center of Polarization Imaging and Measurement Engineering Technology, Shenzhen Key Laboratory for Minimal Invasive Medical Technologies, Shenzhen, China
| | - Hui Ma
- Tsinghua University, Institute of Biopharmaceutical and Health Engineering, Tsinghua Shenzhen International Graduate School, Guangdong Research Center of Polarization Imaging and Measurement Engineering Technology, Shenzhen Key Laboratory for Minimal Invasive Medical Technologies, Shenzhen, China
- Tsinghua University, Department of Physics, Beijing, China
| |
Collapse
|
4
|
Budagovsky I, Kuznetsov A, Shvetsov S, Smayev M, Zolot'ko A. Determination of Light-Induced Deformation Characteristics of the Director Field of Nematic Liquid Crystal by Combining the Methods of Aberrational Self-Action of Light Beam and Polarization Microscopy. Microsc Microanal 2023; 29:1639-1649. [PMID: 37584516 DOI: 10.1093/micmic/ozad079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 06/15/2023] [Accepted: 07/18/2023] [Indexed: 08/17/2023]
Abstract
Light-induced director field deformation of a nematic liquid crystal in the field of an obliquely incident laser beam is experimentally studied with aberrational self-action and polarization microscopy. Each of the methods has features associated with the geometry of the light interaction with the director. The combination of methods significantly expands the possibilities of reconstructing the light-induced nonlinear phase shift profile and the director field deformation.
Collapse
Affiliation(s)
- Ivan Budagovsky
- Optics Department, Lebedev Physical Institute of the Russian Academy of Sciences, Leninsky pr., 53, Moscow 119991, Russia
| | - Aleksey Kuznetsov
- Optics Department, Lebedev Physical Institute of the Russian Academy of Sciences, Leninsky pr., 53, Moscow 119991, Russia
| | - Sergey Shvetsov
- Optics Department, Lebedev Physical Institute of the Russian Academy of Sciences, Leninsky pr., 53, Moscow 119991, Russia
- Faculty of Physics, Lomonosov Moscow State University, GSP-1, 1-2 Leninskiye Gory, Moscow 119991, Russia
| | - Mikhail Smayev
- Optics Department, Lebedev Physical Institute of the Russian Academy of Sciences, Leninsky pr., 53, Moscow 119991, Russia
| | - Alexander Zolot'ko
- Optics Department, Lebedev Physical Institute of the Russian Academy of Sciences, Leninsky pr., 53, Moscow 119991, Russia
| |
Collapse
|
5
|
Sampaio P, Lopez-Antuña M, Storni F, Wicht J, Sökeland G, Wartenberg M, Márquez-Neila P, Candinas D, Demory BO, Perren A, Sznitman R. Müller matrix polarimetry for pancreatic tissue characterization. Sci Rep 2023; 13:16417. [PMID: 37775538 PMCID: PMC10541901 DOI: 10.1038/s41598-023-43195-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 09/20/2023] [Indexed: 10/01/2023] Open
Abstract
Polarimetry is an optical characterization technique capable of analyzing the polarization state of light reflected by materials and biological samples. In this study, we investigate the potential of Müller matrix polarimetry (MMP) to analyze fresh pancreatic tissue samples. Due to its highly heterogeneous appearance, pancreatic tissue type differentiation is a complex task. Furthermore, its challenging location in the body makes creating direct imaging difficult. However, accurate and reliable methods for diagnosing pancreatic diseases are critical for improving patient outcomes. To this end, we measured the Müller matrices of ex-vivo unfixed human pancreatic tissue and leverage the feature-learning capabilities of a machine-learning model to derive an optimized data representation that minimizes normal-abnormal classification error. We show experimentally that our approach accurately differentiates between normal and abnormal pancreatic tissue. This is, to our knowledge, the first study to use ex-vivo unfixed human pancreatic tissue combined with feature-learning from raw Müller matrix readings for this purpose.
Collapse
Affiliation(s)
- Paulo Sampaio
- ARTORG Center, University of Bern, Bern, Switzerland.
| | | | - Federico Storni
- Department of Visceral surgery and medicine, Bern University Hospital, Bern, Switzerland
| | - Jonatan Wicht
- ARTORG Center, University of Bern, Bern, Switzerland
- Center for Space and Habitability, University of Bern, Bern, Switzerland
| | - Greta Sökeland
- Institute of Tissue Medicine and Pathology, University of Bern, Bern, Switzerland
| | - Martin Wartenberg
- Institute of Tissue Medicine and Pathology, University of Bern, Bern, Switzerland
| | | | - Daniel Candinas
- Department of Visceral surgery and medicine, Bern University Hospital, Bern, Switzerland
| | | | - Aurel Perren
- Institute of Tissue Medicine and Pathology, University of Bern, Bern, Switzerland
| | | |
Collapse
|
6
|
Dos Anjos EHM, Mello MLS, Vidal BC. High-Performance Polarization Microscopy Reveals Structural Remodeling in Rat Calcaneal Tendons Cultivated In Vitro. Cells 2023; 12. [PMID: 36831234 DOI: 10.3390/cells12040566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 01/01/2023] [Accepted: 01/04/2023] [Indexed: 02/12/2023] Open
Abstract
Collagenous tissues exhibit anisotropic optical properties such as birefringence and linear dichroism (LD) as a result of their structurally oriented supraorganization from the nanometer level to the collagen bundle scale. Changes in macromolecular order and in aggregational states can be evaluated in tendon collagen bundles using polarization microscopy. Because there are no reports on the status of the macromolecular organization in tendon explants, the objective of this work was to evaluate the birefringence and LD characteristics of collagen bundles in rat calcaneal tendons cultivated in vitro on substrates that differ in their mechanical stiffness (plastic vs. glass) while accompanying the expected occurrence of cell migration from these structures. Tendon explants from adult male Wistar rats were cultivated for 8 and 12 days on borosilicate glass coverslips (n = 3) and on nonpyrogenic polystyrene plastic dishes (n = 4) and were compared with tendons not cultivated in vitro (n = 3). Birefringence was investigated in unstained tendon sections using high-performance polarization microscopy and image analysis. LD was studied under polarized light in tendon sections stained with the dichroic dyes Ponceau SS and toluidine blue at pH 4.0 to evaluate the orientation of proteins and acid glycosaminoglycans (GAG) macromolecules, respectively. Structural remodeling characterized by the reduction in the macromolecular orientation, aggregation and alignment of collagen bundles, based on decreased average gray values concerned with birefringence intensity, LD and morphological changes, was detected especially in the tendon explants cultivated on the plastic substrate. These changes may have facilitated cell migration from the lateral regions of the explants to the substrates, an event that was observed earlier and more intensely upon tissue cultivation on the plastic substrate. The axial alignment of the migrating cells relative to the explant, which occurred with increased cultivation times, may be due to the mechanosensitive nature of the tenocytes. Collagen fibers possibly played a role as a signal source to cells, a hypothesis that requires further investigation, including studies on the dynamics of cell membrane receptors and cytoskeletal organization, and collagen shearing electrical properties.
Collapse
|
7
|
Chen Y, Chu J, Lin F, Jiang B, Liu Y, Huang B, Zhang R, Xin B, Ding X. Polarization clustering of biological structures with Mueller matrix parameters. J Biophotonics 2023; 16:e202200255. [PMID: 36259128 DOI: 10.1002/jbio.202200255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 10/07/2022] [Accepted: 10/17/2022] [Indexed: 06/16/2023]
Abstract
Mueller matrix imaging polarimetry (MMIP) is a promising technique for the characterization of biological tissues, including the classification of microstructures in pathological diagnosis. To expand the parameter space of Mueller matrix parameters, we propose new vector parameters (VPs) according to the Mueller matrix polar decomposition method. We measure invasive bladder cancer (IBC) with extensive necrosis and high-grade ductal carcinoma in situ (DCIS) with MMIP, and the regions of cancer cells and fibrotic stroma are classified with the VPs. Then the proposed and existing VPs are mapped on the Poincaré sphere with 3D visualization, and an indicator of spatial feature is defined based on the minimum enclosing sphere to evaluate the classification capability of the VPs. For both IBC and DCIS, the results show that the proposed VPs exhibit evident contrast between the regions of cancer cells and fibrotic stroma. This study broadens the fundamental Mueller matrix parameters and helps to improve the characterization ability of the MMIP technique.
Collapse
Affiliation(s)
- Yongtai Chen
- School of Mechanical Engineering, Dalian University of Technology, Dalian, China
| | - Jinkui Chu
- School of Mechanical Engineering, Dalian University of Technology, Dalian, China
| | - Fanlu Lin
- Department of Urology, Linyi Central Hospital, Linyi, China
| | - Bing Jiang
- Department of Pathology, Cancer Hospital of Dalian University of Technology, Liaoning Cancer Hospital & Institute, Shenyang, Liaoning Province, China
| | - Yadong Liu
- Institute of Ultrasound Imaging, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Bo Huang
- Department of Pathology, Cancer Hospital of Dalian University of Technology, Liaoning Cancer Hospital & Institute, Shenyang, Liaoning Province, China
| | - Ran Zhang
- School of Mechanical Engineering, Dalian University of Technology, Dalian, China
| | - Benda Xin
- School of Mechanical Engineering, Dalian University of Technology, Dalian, China
| | - Xiaohan Ding
- School of Mechanical Engineering, Dalian University of Technology, Dalian, China
| |
Collapse
|
8
|
Kerski J, Mannel H, Lochner P, Kleinherbers E, Kurzmann A, Ludwig A, Wieck AD, König J, Lorke A, Geller M. Post-processing of real-time quantum event measurements for an optimal bandwidth. Sci Rep 2023; 13:1105. [PMID: 36670214 DOI: 10.1038/s41598-023-28273-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Accepted: 01/16/2023] [Indexed: 01/22/2023] Open
Abstract
Single electron tunneling and its transport statistics have been studied for some time using high precision charge detectors. However, this type of detection requires advanced lithography, optimized material systems and low temperatures (mK). A promising alternative, recently demonstrated, is to exploit an optical transition that is turned on or off when a tunnel event occurs. High bandwidths should be achievable with this approach, although this has not been adequately investigated so far. We have studied low temperature resonance fluorescence from a self-assembled quantum dot embedded in a diode structure. We detect single photons from the dot in real time and evaluate the recorded data only after the experiment, using post-processing to obtain the random telegraph signal of the electron transport. This is a significant difference from commonly used charge detectors and allows us to determine the optimal time resolution for analyzing our data. We show how this post-processing affects both the determination of tunneling rates using waiting-time distributions and statistical analysis using full-counting statistics. We also demonstrate, as an example, that we can analyze our data with bandwidths as high as 175 kHz. Using a simple model, we discuss the limiting factors for achieving the optimal bandwidth and propose how a time resolution of more than 1 MHz could be achieved.
Collapse
|
9
|
Mirsanaye K, Uribe Castaño L, Kamaliddin Y, Golaraei A, Kontenis L, Ẑurauskas E, Navab R, Yasufuku K, Tsao MS, Wilson BC, Barzda V. Unsupervised determination of lung tumor margin with widefield polarimetric second-harmonic generation microscopy. Sci Rep 2022; 12:20713. [PMID: 36456811 PMCID: PMC9715953 DOI: 10.1038/s41598-022-24973-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Accepted: 11/22/2022] [Indexed: 12/03/2022] Open
Abstract
The extracellular matrix (ECM) is amongst many tissue components affected by cancer, however, morphological changes of the ECM are not well-understood and thus, often omitted from diagnostic considerations. Polarimetric second-harmonic generation (P-SHG) microscopy allows for visualization and characterization of collagen ultrastructure in the ECM, aiding in better understanding of the changes induced by cancer throughout the tissue. In this paper, a large region of hematoxylin and eosin (H&E) stained human lung section, encompassing a tumor margin, connecting a significant tumor portion to normal tissue was imaged with P-SHG microscopy. The resulting polarimetric parameters were utilized in principal components analysis and unsupervised K-Means clustering to separate normal- and tumor-like tissue. Consequently, a pseudo-color map of the clustered tissue regions is generated to highlight the irregularity of the ECM collagen structure throughout the region of interest and to identify the tumor margin, in the absence of morphological characteristics of the cells.
Collapse
Affiliation(s)
- Kamdin Mirsanaye
- grid.17063.330000 0001 2157 2938Department of Physics, University of Toronto, Toronto, Canada ,grid.17063.330000 0001 2157 2938Department of Chemical and Physical Sciences, University of Toronto Mississauga, Mississauga, Canada
| | - Leonardo Uribe Castaño
- grid.17063.330000 0001 2157 2938Department of Physics, University of Toronto, Toronto, Canada ,grid.17063.330000 0001 2157 2938Department of Chemical and Physical Sciences, University of Toronto Mississauga, Mississauga, Canada
| | - Yasmeen Kamaliddin
- grid.17063.330000 0001 2157 2938Department of Physics, University of Toronto, Toronto, Canada ,grid.17063.330000 0001 2157 2938Department of Chemical and Physical Sciences, University of Toronto Mississauga, Mississauga, Canada
| | - Ahmad Golaraei
- grid.17063.330000 0001 2157 2938Department of Physics, University of Toronto, Toronto, Canada ,grid.17063.330000 0001 2157 2938Department of Chemical and Physical Sciences, University of Toronto Mississauga, Mississauga, Canada ,grid.231844.80000 0004 0474 0428Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
| | - Lukas Kontenis
- grid.6441.70000 0001 2243 2806Laser Research Centre, Faculty of Physics, Vilnius University, Vilnius, Lithuania ,Light Conversion, Vilnius, Lithuania
| | - Edvardas Ẑurauskas
- grid.6441.70000 0001 2243 2806Department of Pathology, Forensic Medicine and Pharmacology, Faculty of Medicine, Vilnius University, Vilnius, Lithuania
| | - Roya Navab
- grid.231844.80000 0004 0474 0428Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
| | - Kazuhiro Yasufuku
- grid.231844.80000 0004 0474 0428Toronto General Hospital, University Health Network, Toronto, Canada
| | - Ming-Sound Tsao
- grid.231844.80000 0004 0474 0428Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
| | - Brian C. Wilson
- grid.231844.80000 0004 0474 0428Princess Margaret Cancer Centre, University Health Network, Toronto, Canada ,grid.17063.330000 0001 2157 2938Department of Medical Biophysics, University of Toronto, Toronto, Canada
| | - Virginijus Barzda
- grid.17063.330000 0001 2157 2938Department of Physics, University of Toronto, Toronto, Canada ,grid.17063.330000 0001 2157 2938Department of Chemical and Physical Sciences, University of Toronto Mississauga, Mississauga, Canada ,grid.6441.70000 0001 2243 2806Laser Research Centre, Faculty of Physics, Vilnius University, Vilnius, Lithuania
| |
Collapse
|
10
|
Cagnato C, Nlend P, Ngouoh F, Oslisly R, de Saulieu G. Analysis of Early Iron Age (2500 BP) and modern period (150 BP) starch grains in Western Central Africa. Sci Rep 2022; 12:18956. [PMID: 36347970 DOI: 10.1038/s41598-022-23442-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 10/31/2022] [Indexed: 11/10/2022] Open
Abstract
Starch grain analysis carried out on 23 ceramic sherds from 6 refuse pits from the site of Nachtigal in central Cameroon is shedding light on a longstanding debate regarding ancient diets in Central Africa during the Iron Age (IA, 2500 years BP) but also more recently during the Modern Period (ca. 150 BP). The results indicate a varied, but balanced diet, consisting of cereals, legumes, oil-rich seeds, and tubers; the latter being very rarely documented in the region. Moreover, we underscore the presence of taxa still consumed today, or in recent times. Rescue archaeology, and the application of specialized methodologies, are critical to better nuancing past dietary practices in this region.
Collapse
|
11
|
Brasselet S. Fluorescence polarization modulation super-resolution imaging provides refined dynamics orientation processes in biological samples. Light Sci Appl 2022; 11:322. [PMID: 36336677 PMCID: PMC9637731 DOI: 10.1038/s41377-022-01018-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Combining polarization modulation Fourier analysis and spatial information in a joint reconstruction algorithm for polarization-resolved fluorescence imaging provides not only a gain in spatial resolution but also a sensitive readout of anisotropy in cell samples.
Collapse
Affiliation(s)
- Sophie Brasselet
- Aix Marseille Univ, CNRS, Centrale Marseille, Institut Fresnel, F-13013, Marseille, France.
| |
Collapse
|
12
|
Chen Y, Chu J, Tang WC, Zhang R, Zhao M, Xin B. Study of the spatial scale stability of Mueller matrix parameters for textural characterization of biological tissues. J Biophotonics 2022; 15:e202100269. [PMID: 34837329 DOI: 10.1002/jbio.202100269] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 11/23/2021] [Accepted: 11/25/2021] [Indexed: 06/13/2023]
Abstract
Mueller matrix imaging polarimetry (MMIP) is a promising technique for the textural characterization of biological tissue structures. To reveal the influence of imaging magnification on the robustness of Mueller matrix parameters (MMPs), the spatial scale stability of MMPs was studied. We established a new MMIP detector and derived the mathematical model of the spatial scale stability of MMPs. The biological tissues with well-defined structural components were imaged under different magnifications. Then, we compared and analyzed the textural features of the MMPs in the resulting images. The experimental results match the predictions of the mathematical model in these aspects: (a) magnification exhibits a strong nonlinear effect on the textural contrasts of MMPs images; (b) higher magnification does not necessarily lead to superior contrast for textural characterization; and (c) for different biological tissues, MMPs contrasts can be optimized differently, with some showing superior results. This study provides a reference for the experimental design and operation of the MMIP technique and is helpful for improving the characterization ability of MMPs.
Collapse
Affiliation(s)
- Yongtai Chen
- School of Mechanical Engineering, Dalian University of Technology, Dalian, China
| | - Jinkui Chu
- School of Mechanical Engineering, Dalian University of Technology, Dalian, China
| | - William C Tang
- Department of Biomedical Engineering, University of California, Irvine, California, USA
| | - Ran Zhang
- School of Mechanical Engineering, Dalian University of Technology, Dalian, China
| | - Mingyu Zhao
- School of Mechanical Engineering, Dalian University of Technology, Dalian, China
| | - Benda Xin
- School of Mechanical Engineering, Dalian University of Technology, Dalian, China
| |
Collapse
|
13
|
Menzel M, Reuter JA, Gräßel D, Costantini I, Amunts K, Axer M. Automated computation of nerve fibre inclinations from 3D polarised light imaging measurements of brain tissue. Sci Rep 2022; 12:4328. [PMID: 35288611 DOI: 10.1038/s41598-022-08140-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Accepted: 03/01/2022] [Indexed: 02/06/2023] Open
Abstract
The method 3D polarised light imaging (3D-PLI) measures the birefringence of histological brain sections to determine the spatial course of nerve fibres (myelinated axons). While the in-plane fibre directions can be determined with high accuracy, the computation of the out-of-plane fibre inclinations is more challenging because they are derived from the amplitude of the birefringence signals, which depends e.g. on the amount of nerve fibres. One possibility to improve the accuracy is to consider the average transmitted light intensity (transmittance weighting). The current procedure requires effortful manual adjustment of parameters and anatomical knowledge. Here, we introduce an automated, optimised computation of the fibre inclinations, allowing for a much faster, reproducible determination of fibre orientations in 3D-PLI. Depending on the degree of myelination, the algorithm uses different models (transmittance-weighted, unweighted, or a linear combination), allowing to account for regionally specific behaviour. As the algorithm is parallelised and GPU optimised, it can be applied to large data sets. Moreover, it only uses images from standard 3D-PLI measurements without tilting, and can therefore be applied to existing data sets from previous measurements. The functionality is demonstrated on unstained coronal and sagittal histological sections of vervet monkey and rat brains.
Collapse
|
14
|
Guan M, Wang M, Zhanghao K, Zhang X, Li M, Liu W, Niu J, Yang X, Chen L, Jing Z, Zhang MQ, Jin D, Xi P, Gao J. Polarization modulation with optical lock-in detection reveals universal fluorescence anisotropy of subcellular structures in live cells. Light Sci Appl 2022; 11:4. [PMID: 34974519 PMCID: PMC8720311 DOI: 10.1038/s41377-021-00689-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 11/05/2021] [Accepted: 11/27/2021] [Indexed: 05/05/2023]
Abstract
The orientation of fluorophores can reveal crucial information about the structure and dynamics of their associated subcellular organelles. Despite significant progress in super-resolution, fluorescence polarization microscopy remains limited to unique samples with relatively strong polarization modulation and not applicable to the weak polarization signals in samples due to the excessive background noise. Here we apply optical lock-in detection to amplify the weak polarization modulation with super-resolution. This novel technique, termed optical lock-in detection super-resolution dipole orientation mapping (OLID-SDOM), could achieve a maximum of 100 frames per second and rapid extraction of 2D orientation, and distinguish distance up to 50 nm, making it suitable for monitoring structural dynamics concerning orientation changes in vivo. OLID-SDOM was employed to explore the universal anisotropy of a large variety of GFP-tagged subcellular organelles, including mitochondria, lysosome, Golgi, endosome, etc. We found that OUF (Orientation Uniformity Factor) of OLID-SDOM can be specific for different subcellular organelles, indicating that the anisotropy was related to the function of the organelles, and OUF can potentially be an indicator to distinguish normal and abnormal cells (even cancer cells). Furthermore, dual-color super-resolution OLID-SDOM imaging of lysosomes and actins demonstrates its potential in studying dynamic molecular interactions. The subtle anisotropy changes of expanding and shrinking dendritic spines in live neurons were observed with real-time OLID-SDOM. Revealing previously unobservable fluorescence anisotropy in various samples and indicating their underlying dynamic molecular structural changes, OLID-SDOM expands the toolkit for live cell research.
Collapse
Affiliation(s)
- Meiling Guan
- Department of Biomedical Engineering, College of Future Technology, Peking University, Beijing, 100871, China
| | - Miaoyan Wang
- Department of Biomedical Engineering, College of Future Technology, Peking University, Beijing, 100871, China
| | - Karl Zhanghao
- Department of Biomedical Engineering, College of Future Technology, Peking University, Beijing, 100871, China
- UTS-SUStech Joint Research Centre for Biomedical Materials & Devices, Department of Biomedical Engineering, College of Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, China
| | - Xu Zhang
- MOE Key Laboratory of Bioinformatics, Bioinformatics Division, Center for Synthetic & Systems Biology, BNRist, Beijing, China
- Center for Synthetic & Systems Biology; Department of Automation, Tsinghua University, Beijing, 100084, China
- Beijing Institute of Collaborative Innovation, Beijing, 100094, China
| | - Meiqi Li
- Department of Biomedical Engineering, College of Future Technology, Peking University, Beijing, 100871, China
| | - Wenhui Liu
- Center for Synthetic & Systems Biology; Department of Automation, Tsinghua University, Beijing, 100084, China
| | - Jing Niu
- MOE Key Laboratory of Bioinformatics, Bioinformatics Division, Center for Synthetic & Systems Biology, BNRist, Beijing, China
| | - Xusan Yang
- Department of Biomedical Engineering, College of Future Technology, Peking University, Beijing, 100871, China
| | - Long Chen
- MOE Key Laboratory of Bioinformatics, Bioinformatics Division, Center for Synthetic & Systems Biology, BNRist, Beijing, China
- Center for Synthetic & Systems Biology; Department of Automation, Tsinghua University, Beijing, 100084, China
| | - Zhenli Jing
- MOE Key Laboratory of Bioinformatics, Bioinformatics Division, Center for Synthetic & Systems Biology, BNRist, Beijing, China
| | - Micheal Q Zhang
- MOE Key Laboratory of Bioinformatics, Bioinformatics Division, Center for Synthetic & Systems Biology, BNRist, Beijing, China
- Department of Biological Sciences and Center for System Biology, The University of Texas at Dallas, Richardson, 75080, USA
- School of Medical Sciences, Tsinghua University, Beijing, 100084, China
| | - Dayong Jin
- UTS-SUStech Joint Research Centre for Biomedical Materials & Devices, Department of Biomedical Engineering, College of Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, China
- Institute for Biomedical Materials and Devices (IBMD), Faculty of Science, University of Technology Sydney, Sydney, NSW, 2007, Australia
| | - Peng Xi
- Department of Biomedical Engineering, College of Future Technology, Peking University, Beijing, 100871, China
- UTS-SUStech Joint Research Centre for Biomedical Materials & Devices, Department of Biomedical Engineering, College of Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, China
- National Biomedical Imaging Center, Peking University, Beijing, 100871, China
| | - Juntao Gao
- MOE Key Laboratory of Bioinformatics, Bioinformatics Division, Center for Synthetic & Systems Biology, BNRist, Beijing, China.
- Center for Synthetic & Systems Biology; Department of Automation, Tsinghua University, Beijing, 100084, China.
| |
Collapse
|
15
|
Ge B, Zhang Q, Zhang R, Lin JT, Tseng PH, Chang CW, Dong CY, Zhou R, Yaqoob Z, Bischofberger I, So PTC. Single-Shot Quantitative Polarization Imaging of Complex Birefringent Structure Dynamics. ACS Photonics 2021; 8:3440-3447. [PMID: 37292495 PMCID: PMC10249439 DOI: 10.1021/acsphotonics.1c00788] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Polarization light microscopes are powerful tools for probing molecular order and orientation in birefringent materials. While a number of polarization microscopy techniques are available to access steady-state properties of birefringent samples, quantitative measurements of the molecular orientation dynamics on the millisecond time scale have remained a challenge. We propose polarized shearing interference microscopy (PSIM), a single-shot quantitative polarization imaging method, for extracting the retardance and orientation angle of the laser beam transmitting through optically anisotropic specimens with complex structures. The measurement accuracy and imaging performance of PSIM are validated by imaging a birefringent resolution target and a bovine tendon specimen. We demonstrate that PSIM can quantify the dynamics of a flowing lyotropic chromonic liquid crystal in a microfluidic channel at an imaging speed of 506 frames per second (only limited by the camera frame rate), with a field-of-view of up to 350 × 350 μm2 and a diffraction-limit spatial resolution of ~2 μm. We envision that PSIM will find a broad range of applications in quantitative material characterization under dynamical conditions.
Collapse
Affiliation(s)
- Baoliang Ge
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Laser Biomedical Research Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Qing Zhang
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Rui Zhang
- Department of Physics, The Hong Kong University of Science and Technology, Hong Kong 999077, China
| | - Jing-Tang Lin
- Department of Physics, National Taiwan University, Taipei 106 Taiwan, Republic of China
| | - Po-Hang Tseng
- Department of Physics, National Taiwan University, Taipei 106 Taiwan, Republic of China
| | - Che-Wei Chang
- Department of Physics, National Taiwan University, Taipei 106 Taiwan, Republic of China
| | - Chen-Yuan Dong
- Department of Physics, National Taiwan University, Taipei 106 Taiwan, Republic of China
| | - Renjie Zhou
- Department of Biomedical Engineering, The Chinese University of Hong Kong, New Territories, Hong Kong 999077, China
| | - Zahid Yaqoob
- Laser Biomedical Research Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Irmgard Bischofberger
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Peter T C So
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Laser Biomedical Research Center and Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| |
Collapse
|
16
|
Pimonov V, Tran HN, Monniello L, Tahir S, Michel T, Podor R, Odorico M, Bichara C, Jourdain V. Dynamic Instability of Individual Carbon Nanotube Growth Revealed by In Situ Homodyne Polarization Microscopy. Nano Lett 2021; 21:8495-8502. [PMID: 34596406 DOI: 10.1021/acs.nanolett.1c03431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Understanding the kinetic selectivity of carbon nanotube growth at the scale of individual nanotubes is essential for the development of high chiral selectivity growth methods. Here we demonstrate that homodyne polarization microscopy can be used for high-throughput imaging of long individual carbon nanotubes under real growth conditions (at ambient pressure, on a substrate) and with subsecond time resolution. Our in situ observations on hundreds of individual nanotubes reveal that about half of them grow at a constant rate all along their lifetime while the other half exhibits stochastic changes in growth rates and/or switches between growth, pause, and shrinkage. Statistical analysis shows that the growth rate of a given nanotube essentially varies between two values, with a similar average ratio (∼1.7) regardless of whether the rate change is accompanied by a change in chirality. These switches indicate that the nanotube edge or the catalyst nanoparticle fluctuates between different configurations during growth.
Collapse
Affiliation(s)
- Vladimir Pimonov
- Laboratoire Charles Coulomb, Univ Montpellier, CNRS, Montpellier, France
| | - Huy-Nam Tran
- Laboratoire Charles Coulomb, Univ Montpellier, CNRS, Montpellier, France
| | - Léonard Monniello
- Laboratoire Charles Coulomb, Univ Montpellier, CNRS, Montpellier, France
| | - Saïd Tahir
- Laboratoire Charles Coulomb, Univ Montpellier, CNRS, Montpellier, France
| | - Thierry Michel
- Laboratoire Charles Coulomb, Univ Montpellier, CNRS, Montpellier, France
| | - Renaud Podor
- ICSM, Univ Montpellier, CEA, CNRS, ENSCM, Bagnols sur Cèze, France
| | - Michaël Odorico
- ICSM, Univ Montpellier, CEA, CNRS, ENSCM, Bagnols sur Cèze, France
| | - Christophe Bichara
- Aix Marseille Univ, CNRS, Centre Interdisciplinaire de Nanoscience de Marseille, Marseille, France
| | - Vincent Jourdain
- Laboratoire Charles Coulomb, Univ Montpellier, CNRS, Montpellier, France
| |
Collapse
|
17
|
Hulleman CN, Thorsen RØ, Kim E, Dekker C, Stallinga S, Rieger B. Simultaneous orientation and 3D localization microscopy with a Vortex point spread function. Nat Commun 2021; 12:5934. [PMID: 34635658 PMCID: PMC8505439 DOI: 10.1038/s41467-021-26228-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Accepted: 09/21/2021] [Indexed: 11/08/2022] Open
Abstract
Estimating the orientation and 3D position of rotationally constrained emitters with localization microscopy typically requires polarization splitting or a large engineered Point Spread Function (PSF). Here we utilize a compact modified PSF for single molecule emitter imaging to estimate simultaneously the 3D position, dipole orientation, and degree of rotational constraint from a single 2D image. We use an affordable and commonly available phase plate, normally used for STED microscopy in the excitation light path, to alter the PSF in the emission light path. This resulting Vortex PSF does not require polarization splitting and has a compact PSF size, making it easy to implement and combine with localization microscopy techniques. In addition to a vectorial PSF fitting routine we calibrate for field-dependent aberrations which enables orientation and position estimation within 30% of the Cramér-Rao bound limit over a 66 μm field of view. We demonstrate this technique on reorienting single molecules adhered to the cover slip, λ-DNA with DNA intercalators using binding-activated localization microscopy, and we reveal periodicity on intertwined structures on supercoiled DNA.
Collapse
Affiliation(s)
- Christiaan N Hulleman
- Department of Imaging Physics, Delft University of Technology, Delft, The Netherlands
| | - Rasmus Ø Thorsen
- Department of Imaging Physics, Delft University of Technology, Delft, The Netherlands
| | - Eugene Kim
- Department of Bionanoscience, Kavli Institute of Nanoscience, Delft University of Technology, Delft, The Netherlands
- Max Planck Institute of Biophysics, 60438, Frankfurt, Germany
| | - Cees Dekker
- Department of Bionanoscience, Kavli Institute of Nanoscience, Delft University of Technology, Delft, The Netherlands
| | - Sjoerd Stallinga
- Department of Imaging Physics, Delft University of Technology, Delft, The Netherlands.
| | - Bernd Rieger
- Department of Imaging Physics, Delft University of Technology, Delft, The Netherlands.
| |
Collapse
|
18
|
Blanchard A, Combs JD, Brockman JM, Kellner AV, Glazier R, Su H, Bender RL, Bazrafshan AS, Chen W, Quach ME, Li R, Mattheyses AL, Salaita K. Turn-key mapping of cell receptor force orientation and magnitude using a commercial structured illumination microscope. Nat Commun 2021; 12:4693. [PMID: 34344862 PMCID: PMC8333341 DOI: 10.1038/s41467-021-24602-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 06/22/2021] [Indexed: 02/07/2023] Open
Abstract
Many cellular processes, including cell division, development, and cell migration require spatially and temporally coordinated forces transduced by cell-surface receptors. Nucleic acid-based molecular tension probes allow one to visualize the piconewton (pN) forces applied by these receptors. Building on this technology, we recently developed molecular force microscopy (MFM) which uses fluorescence polarization to map receptor force orientation with diffraction-limited resolution (~250 nm). Here, we show that structured illumination microscopy (SIM), a super-resolution technique, can be used to perform super-resolution MFM. Using SIM-MFM, we generate the highest resolution maps of both the magnitude and orientation of the pN traction forces applied by cells. We apply SIM-MFM to map platelet and fibroblast integrin forces, as well as T cell receptor forces. Using SIM-MFM, we show that platelet traction force alignment occurs on a longer timescale than adhesion. Importantly, SIM-MFM can be implemented on any standard SIM microscope without hardware modifications.
Collapse
Affiliation(s)
- Aaron Blanchard
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, USA
| | - J Dale Combs
- Department of Chemistry, Emory University, Atlanta, GA, USA
| | - Joshua M Brockman
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, USA
| | - Anna V Kellner
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, USA
| | - Roxanne Glazier
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, USA
| | - Hanquan Su
- Department of Chemistry, Emory University, Atlanta, GA, USA
| | | | | | - Wenchun Chen
- Aflac Cancer and Blood Disorders Center, Children's Healthcare of Atlanta, Atlanta, GA, USA
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, USA
| | - M Edward Quach
- Aflac Cancer and Blood Disorders Center, Children's Healthcare of Atlanta, Atlanta, GA, USA
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, USA
| | - Renhao Li
- Aflac Cancer and Blood Disorders Center, Children's Healthcare of Atlanta, Atlanta, GA, USA
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, USA
| | - Alexa L Mattheyses
- Department of Cell, Developmental, and Integrative Biology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Khalid Salaita
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, USA.
- Department of Chemistry, Emory University, Atlanta, GA, USA.
| |
Collapse
|
19
|
Ushenko VA, Hogan BT, Dubolazov A, Piavchenko G, Kuznetsov SL, Ushenko AG, Ushenko YO, Gorsky M, Bykov A, Meglinski I. 3D Mueller matrix mapping of layered distributions of depolarisation degree for analysis of prostate adenoma and carcinoma diffuse tissues. Sci Rep 2021; 11:5162. [PMID: 33664274 PMCID: PMC7933337 DOI: 10.1038/s41598-021-83986-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Accepted: 02/10/2021] [Indexed: 11/17/2022] Open
Abstract
Prostate cancer is the second most common cancer globally in men, and in some countries is now the most diagnosed form of cancer. It is necessary to differentiate between benign and malignant prostate conditions to give accurate diagnoses. We aim to demonstrate the use of a 3D Mueller matrix method to allow quick and easy clinical differentiation between prostate adenoma and carcinoma tissues with different grades and Gleason scores. Histological sections of benign and malignant prostate tumours, obtained by radical prostatectomy, were investigated. We map the degree of depolarisation in the different prostate tumour tissues using a Mueller matrix polarimeter set-up, based on the superposition of a reference laser beam with the interference pattern of the sample in the image plane. The depolarisation distributions can be directly related to the morphology of the biological tissues. The dependences of the magnitude of the 1st to 4th order statistical moments of the depolarisation distribution are determined, which characterise the distributions of the depolarisation values. To determine the diagnostic potential of the method three groups of histological sections of prostate tumour biopsies were formed. The first group contained 36 adenoma tissue samples, while the second contained 36 carcinoma tissue samples of a high grade (grade 4: poorly differentiated-4 + 4 Gleason score), and the third group contained 36 carcinoma tissue samples of a low grade (grade 1: moderately differentiated-3 + 3 Gleason score). Using the calculated values of the statistical moments, tumour tissues are categorised as either adenoma or carcinoma. A high level (> 90%) accuracy of differentiation between adenoma and carcinoma samples was achieved for each group. Differentiation between the high-grade and low-grade carcinoma samples was achieved with an accuracy of 87.5%. The results demonstrate that Mueller matrix mapping of the depolarisation distribution of prostate tumour tissues can accurately differentiate between adenoma and carcinoma, and between different grades of carcinoma. This represents a first step towards the implementation of 3D Mueller matrix mapping for clinical analysis and diagnosis of prostate tumours.
Collapse
Affiliation(s)
- Volodymyr A Ushenko
- Optics and Publishing Department, Chernivtsi National University, 2 Kotsiubynskyi Str., Chernivtsi, 58012, Ukraine
| | - Benjamin T Hogan
- Optoelectronics and Measurement Techniques Laboratory, University of Oulu, 90014, Oulu, Finland
| | - Alexander Dubolazov
- Optics and Publishing Department, Chernivtsi National University, 2 Kotsiubynskyi Str., Chernivtsi, 58012, Ukraine
| | - Gennadii Piavchenko
- Institute of Clinical Medicine N.V. Sklifosovsky, I.M. Sechenov First Moscow State Medical University, Moscow, Russia, 129090
| | - Sergey L Kuznetsov
- Institute of Clinical Medicine N.V. Sklifosovsky, I.M. Sechenov First Moscow State Medical University, Moscow, Russia, 129090
| | - Alexander G Ushenko
- Optics and Publishing Department, Chernivtsi National University, 2 Kotsiubynskyi Str., Chernivtsi, 58012, Ukraine
| | - Yuriy O Ushenko
- Optics and Publishing Department, Chernivtsi National University, 2 Kotsiubynskyi Str., Chernivtsi, 58012, Ukraine
| | - Mykhailo Gorsky
- Optics and Publishing Department, Chernivtsi National University, 2 Kotsiubynskyi Str., Chernivtsi, 58012, Ukraine
| | - Alexander Bykov
- Optoelectronics and Measurement Techniques Laboratory, University of Oulu, 90014, Oulu, Finland
| | - Igor Meglinski
- Optoelectronics and Measurement Techniques Laboratory, University of Oulu, 90014, Oulu, Finland.
- Institute of Clinical Medicine N.V. Sklifosovsky, I.M. Sechenov First Moscow State Medical University, Moscow, Russia, 129090.
- Institute of Engineering Physics for Biomedicine (PhysBio), National Research Nuclear University (MEPhI), Moscow, Russia, 115409.
- College of Engineering and Physical Sciences, Aston University, Birmingham, B4 7ET, UK.
| |
Collapse
|
20
|
Van Eeckhout A, Garcia-Caurel E, Garnatje T, Escalera JC, Durfort M, Vidal J, Gil JJ, Campos J, Lizana A. Polarimetric imaging microscopy for advanced inspection of vegetal tissues. Sci Rep 2021; 11:3913. [PMID: 33594126 PMCID: PMC7887219 DOI: 10.1038/s41598-021-83421-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Accepted: 02/03/2021] [Indexed: 01/30/2023] Open
Abstract
Optical microscopy techniques for plant inspection benefit from the fact that at least one of the multiple properties of light (intensity, phase, wavelength, polarization) may be modified by vegetal tissues. Paradoxically, polarimetric microscopy although being a mature technique in biophotonics, is not so commonly used in botany. Importantly, only specific polarimetric observables, as birefringence or dichroism, have some presence in botany studies, and other relevant metrics, as those based on depolarization, are underused. We present a versatile method, based on a representative selection of polarimetric observables, to obtain and to analyse images of plants which bring significant information about their structure and/or the spatial organization of their constituents (cells, organelles, among other structures). We provide a thorough analysis of polarimetric microscopy images of sections of plant leaves which are compared with those obtained by other commonly used microscopy techniques in plant biology. Our results show the interest of polarimetric microscopy for plant inspection, as it is non-destructive technique, highly competitive in economical and time consumption, and providing advantages compared to standard non-polarizing techniques.
Collapse
Affiliation(s)
- Albert Van Eeckhout
- Grup D'Òptica, Physics Department, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain.
| | - Enrique Garcia-Caurel
- LPICM, CNRS, Ecole Polytechnique, Institut Polytechnique de Paris, 91120, Palaiseau, France
| | - Teresa Garnatje
- Botanical Institute of Barcelona (IBB, CSIC-ICUB), 08038, Barcelona, Spain
| | - Juan Carlos Escalera
- Grup D'Òptica, Physics Department, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain
| | - Mercè Durfort
- Departament de Biologia Cellular, Fisiologia & Immunologia. Facultat de Biologia, Universitat de Barcelona, 08028, Barcelona, Spain
| | - Josep Vidal
- Grup D'Òptica, Physics Department, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain
| | - José J Gil
- Department of Applied Physics, University of Zaragoza, Pedro Cerbuna 12, 50009, Zaragoza, Spain
| | - Juan Campos
- Grup D'Òptica, Physics Department, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain
| | - Angel Lizana
- Grup D'Òptica, Physics Department, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain
| |
Collapse
|
21
|
Myšková J, Rybakova O, Brynda J, Khoroshyy P, Bondar A, Lazar J. Directionality of light absorption and emission in representative fluorescent proteins. Proc Natl Acad Sci U S A 2020; 117:32395-32401. [PMID: 33273123 PMCID: PMC7768707 DOI: 10.1073/pnas.2017379117] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 10/30/2020] [Indexed: 12/13/2022] Open
Abstract
Fluorescent molecules are like antennas: The rate at which they absorb light depends on their orientation with respect to the incoming light wave, and the apparent intensity of their emission depends on their orientation with respect to the observer. However, the directions along which the most important fluorescent molecules in biology, fluorescent proteins (FPs), absorb and emit light are generally not known. Our optical and X-ray investigations of FP crystals have now allowed us to determine the molecular orientations of the excitation and emission transition dipole moments in the FPs mTurquoise2, eGFP, and mCherry, and the photoconvertible FP mEos4b. Our results will allow using FP directionality in studies of molecular and biological processes, but also in development of novel bioengineering and bioelectronics applications.
Collapse
Affiliation(s)
- Jitka Myšková
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, 16610 Prague 6, Czech Republic
| | - Olga Rybakova
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, 16610 Prague 6, Czech Republic
- Institute of Microbiology, Czech Academy of Sciences, 37333 Nové Hrady, Czech Republic
| | - Jiří Brynda
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, 16610 Prague 6, Czech Republic
- Institute of Molecular Genetics, Czech Academy of Sciences, 14220 Prague 4, Czech Republic
| | - Petro Khoroshyy
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, 16610 Prague 6, Czech Republic
- Institute of Microbiology, Czech Academy of Sciences, 37333 Nové Hrady, Czech Republic
| | - Alexey Bondar
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, 16610 Prague 6, Czech Republic
- Institute of Microbiology, Czech Academy of Sciences, 37333 Nové Hrady, Czech Republic
| | - Josef Lazar
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, 16610 Prague 6, Czech Republic;
- Institute of Microbiology, Czech Academy of Sciences, 37333 Nové Hrady, Czech Republic
| |
Collapse
|
22
|
Abstract
While the static structure of the nuclear pore complex (NPC) continues to be refined with cryo-EM and x-ray crystallography, in vivo conformational changes of the NPC remain under-explored. We developed sensors that report on the orientation of NPC components by rigidly conjugating mEGFP to different NPC proteins. Our studies show conformational changes to select domains of nucleoporins (Nups) within the inner ring (Nup54, Nup58, Nup62) when transport through the NPC is perturbed and no conformational changes to Nups elsewhere in the NPC. Our results suggest that select components of the NPC are flexible and undergo conformational changes upon engaging with cargo.
Collapse
Affiliation(s)
- Joan Pulupa
- Laboratory of Cellular Biophysics, Rockefeller UniversityNew YorkUnited States
| | - Harriet Prior
- Laboratory of Cellular Biophysics, Rockefeller UniversityNew YorkUnited States
| | - Daniel S Johnson
- Department of Physics and Astronomy, Hofstra UniversityHempsteadUnited States
| | - Sanford M Simon
- Laboratory of Cellular Biophysics, Rockefeller UniversityNew YorkUnited States
| |
Collapse
|
23
|
Liu T, de Haan K, Bai B, Rivenson Y, Luo Y, Wang H, Karalli D, Fu H, Zhang Y, FitzGerald J, Ozcan A. Deep Learning-Based Holographic Polarization Microscopy. ACS Photonics 2020; 7:3023-3034. [PMID: 34368395 PMCID: PMC8345334 DOI: 10.1021/acsphotonics.0c01051] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Polarized light microscopy provides high contrast to birefringent specimen and is widely used as a diagnostic tool in pathology. However, polarization microscopy systems typically operate by analyzing images collected from two or more light paths in different states of polarization, which lead to relatively complex optical designs, high system costs, or experienced technicians being required. Here, we present a deep learning-based holographic polarization microscope that is capable of obtaining quantitative birefringence retardance and orientation information of specimen from a phase-recovered hologram, while only requiring the addition of one polarizer/analyzer pair to an inline lensfree holographic imaging system. Using a deep neural network, the reconstructed holographic images from a single state of polarization can be transformed into images equivalent to those captured using a single-shot computational polarized light microscope (SCPLM). Our analysis shows that a trained deep neural network can extract the birefringence information using both the sample specific morphological features as well as the holographic amplitude and phase distribution. To demonstrate the efficacy of this method, we tested it by imaging various birefringent samples including, for example, monosodium urate and triamcinolone acetonide crystals. Our method achieves similar results to SCPLM both qualitatively and quantitatively, and due to its simpler optical design and significantly larger field-of-view this method has the potential to expand the access to polarization microscopy and its use for medical diagnosis in resource limited settings.
Collapse
Affiliation(s)
- Tairan Liu
- Electrical and Computer Engineering Department, Department of Bioengineering, and California NanoSystems Institute, University of California, Los Angeles, California 90095, United States
| | - Kevin de Haan
- Electrical and Computer Engineering Department, Department of Bioengineering, and California NanoSystems Institute, University of California, Los Angeles, California 90095, United States
| | - Bijie Bai
- Electrical and Computer Engineering Department, Department of Bioengineering, and California NanoSystems Institute, University of California, Los Angeles, California 90095, United States
| | - Yair Rivenson
- Electrical and Computer Engineering Department, Department of Bioengineering, and California NanoSystems Institute, University of California, Los Angeles, California 90095, United States
| | - Yi Luo
- Electrical and Computer Engineering Department, Department of Bioengineering, and California NanoSystems Institute, University of California, Los Angeles, California 90095, United States
| | - Hongda Wang
- Electrical and Computer Engineering Department, Department of Bioengineering, and California NanoSystems Institute, University of California, Los Angeles, California 90095, United States
| | - David Karalli
- Electrical and Computer Engineering Department, University of California, Los Angeles, California 90095, United States
| | - Hongxiang Fu
- Computational and Systems Biology Department, University of California, Los Angeles, California 90095, United States
| | - Yibo Zhang
- Electrical and Computer Engineering Department, Department of Bioengineering, and California NanoSystems Institute, University of California, Los Angeles, California 90095, United States
| | - John FitzGerald
- Division of Rheumatology, Department of Internal Medicine, David Geffen School of Medicine, University of California, Los Angeles, California 90095, United States
| | - Aydogan Ozcan
- Electrical and Computer Engineering Department, Department of Bioengineering, California NanoSystems Institute, and Department of Surgery, David Geffen School of Medicine, University of California, Los Angeles, California 90095, United States
| |
Collapse
|
24
|
Hayes-Rounds C, Bogue-Jimenez B, Garcia-Sucerquia J, Skalli O, Doblas A. Advantages of Fresnel biprism-based digital holographic microscopy in quantitative phase imaging. J Biomed Opt 2020; 25:1-11. [PMID: 32755077 PMCID: PMC7399475 DOI: 10.1117/1.jbo.25.8.086501] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 07/23/2020] [Indexed: 05/30/2023]
Abstract
SIGNIFICANCE The hallmarks of digital holographic microscopy (DHM) compared with other quantitative phase imaging (QPI) methods are high speed, accuracy, spatial resolution, temporal stability, and polarization-sensitivity (PS) capability. The above features make DHM suitable for real-time quantitative PS phase imaging in a broad number of biological applications aimed at understanding cell growth and dynamic changes occurring during physiological processes and/or in response to pharmaceutical agents. AIM The insertion of a Fresnel biprism (FB) in the image space of a light microscope potentially turns any commercial system into a DHM system enabling QPI with the five desired features in QPI simultaneously: high temporal sensitivity, high speed, high accuracy, high spatial resolution, and PS. To the best of our knowledge, this is the first FB-based DHM system providing these five features all together. APPROACH The performance of the proposed system was calibrated with a benchmark phase object. The PS capability has been verified by imaging human U87 glioblastoma cells. RESULTS The proposed FB-based DHM system provides accurate phase images with high spatial resolution. The temporal stability of our system is in the order of a few nanometers, enabling live-cell studies. Finally, the distinctive behavior of the cells at different polarization angles (e.g., PS capability) can be observed with our system. CONCLUSIONS We have presented a method to turn any commercial light microscope with monochromatic illumination into a PS QPI system. The proposed system provides accurate quantitative PS phase images in a new, simple, compact, and cost-effective format, thanks to the low cost (a few hundred dollars) involved in implementing this simple architecture, enabling the use of this QPI technique accessible to most laboratories with standard light microscopes.
Collapse
Affiliation(s)
- Charity Hayes-Rounds
- The University of Memphis, Department of Electrical and Computer Engineering, Memphis, Tennessee 38152, USA
| | - Brian Bogue-Jimenez
- The University of Memphis, Department of Electrical and Computer Engineering, Memphis, Tennessee 38152, USA
| | | | - Omar Skalli
- The University of Memphis, Department of Biological Sciences, Memphis, Tennessee 38152, USA
| | - Ana Doblas
- The University of Memphis, Department of Electrical and Computer Engineering, Memphis, Tennessee 38152, USA
| |
Collapse
|
25
|
Howie AJ. Origins of a pervasive, erroneous idea: The "green birefringence" of Congo red-stained amyloid. Int J Exp Pathol 2019; 100:208-221. [PMID: 31515863 DOI: 10.1111/iep.12330] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2018] [Accepted: 05/09/2019] [Indexed: 01/06/2023] Open
Abstract
Congo red was discovered to stain amyloid by accident in 1922, and Congo red-stained amyloid was shown to be birefringent on polarization microscopy in 1927. Colours, namely green and yellow, were reported under these conditions in 1945, although these are only two of various anomalous colours that may be seen, depending on the optical set-up. In 1953 there began a dogmatic insistence that in Congo red-stained amyloid between crossed polarizer and analyser green alone should be seen, and the finding of any other colour was a mistake. The idea that green, and only green, is essential for the diagnosis of amyloid has persisted almost universally, and virtually all mentions of Congo red-stained amyloid say that it just shows "green birefringence" or "apple-green birefringence." This idea is wrong and is contrary to everyday experience, because green is seldom seen on its own under these conditions of microscopy, and often, there is no green at all. How observers maintain this unscientific position is explained by a study of its historical origins. Most of the early literature was in German or French and was usually quoted in English at second hand, which meant that misquotations, misattributions and misunderstandings were common. Few workers reported their findings accurately, hardly any attempted to explain them, and until 2008, none gave a completely satisfactory account of the physical optics. The history of Congo red-stained amyloid is an instructive example of how an erroneous belief can become widely established even when it is contradicted by simple experience.
Collapse
|
26
|
Ueshima M, Sakanakura H. Simplified Sample Embedding and Polishing Methods for Preparing Hydrophilic, Fragile, or Solvent-Susceptible Materials for Thin Sections for Microscopic Analyses. Microsc Microanal 2019; 25:257-265. [PMID: 30757984 DOI: 10.1017/s1431927619000072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In the preparation of thin sections for microscopy, embedding and polishing processes in particular can change the composition and morphologies of samples. Soils and ashes are very fragile and solvent-susceptible, and appropriate sample preparation procedures have not been well-established. To improve the existing preparation methods and make them easier and faster, we embedded freeze-dried blocks, polished, and then examined these thin-section samples using polarization microscopy, laser microscopy, and field emission scanning electron microscopy with energy-dispersive X-ray spectrometry, and electron backscattered diffraction (EBSD). Appropriate thin-section samples can be prepared by: (1) rinsing with acetone and then embedding with Spurr resin along with repeated evacuation and ventilation, rather than conventional dehydration/replacement; (2) polishing using silicon carbide paper and diamond slurries, and then wiping with a cloth and a synthetic oil; and (3) slightly rinsing with 100% ethanol to remove the oil. The preparation method minimized contamination and pores, and showed flat surfaces and sometimes EBSD patterns. Freeze-drying has been claimed to cause the development of cracks due to ice crystal formation upon freezing, however, our method not only overcomes such problems for microscopic observation but saves substantial time, taking only 2 days in total to process a specimen, and requiring less than 1 g of resin and ~1 g of sample.
Collapse
Affiliation(s)
- Masato Ueshima
- Center for Material Cycles and Waste Management Research, National Institute for Environmental Studies,16-2 Onogawa, Tsukuba, Ibaraki, 305-8506,Japan
| | - Hirofumi Sakanakura
- Center for Material Cycles and Waste Management Research, National Institute for Environmental Studies,16-2 Onogawa, Tsukuba, Ibaraki, 305-8506,Japan
| |
Collapse
|
27
|
Quitero MFZ, Siriani LK, Azevedo CSD, Freitas AZD, Scaramucci T, Simionato MRL, Matos AB. Optical coherence tomography and polarized light microscopy for the evaluation of artificial caries: a preliminary study. Gen Dent 2019; 67:e1-e6. [PMID: 30644838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
This study was designed to investigate whether there is a correlation between the findings of optical coherence tomography (OCT) and polarized light microscopy (PLM) when these techniques are used to evaluate standard enamel white-spot lesions developed by distinct cariogenic challenges. Bovine enamel fragments (N = 168) were randomly allocated into 6 experimental groups according to the microbiologic model (Streptococcus mutans UA159, Streptococcus sobrinus ATCC 33478, or mixed S mutans and S sobrinus) and carbohydrate sources (1% sucrose or combined 1% sucrose and 1% starch). Specimens were examined by OCT and PLM every day within a period of 7 days. Five measurements of demineralization depth were recorded for each specimen, and means were calculated. Data were analyzed with analysis of variance and Tukey tests (α = 0.05), and a correlation test was performed. All cariogenic challenges created sub-superficial lesions. In both the OCT and PLM analyses, the demineralization depth reached its peak between days 6 and 7 of the cariogenic challenge, except for the group challenged with S sobrinus supplemented with combined sucrose and starch; for that group, demineralization peaked on day 5 in the OCT analysis. There was a significant correlation between OCT and PLM (P = 0.00; r = 0.842). This preliminary study suggests that OCT is a reliable, nondestructive method to measure the demineralization depth of enamel white-spot lesions, which can be useful for the laboratory and has potential for clinical studies. Using the 1% sucrose and S mutans model for 6 days is a simple and effective method to induce enamel caries-like lesions without compromising the depth and morphologic features of the obtained lesions.
Collapse
|
28
|
Kim SY, Arai Y, Tani T, Takatsuka H, Saito Y, Kawashima T, Kawakami S, Miyawaki A, Nagai T. Simultaneous imaging of multiple cellular events using high-accuracy fluorescence polarization microscopy. Microscopy (Oxf) 2018; 66:110-119. [PMID: 28043995 DOI: 10.1093/jmicro/dfw110] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Accepted: 12/16/2016] [Indexed: 11/13/2022] Open
Abstract
Förster resonance energy transfer (FRET) has been widely used to design indicators for biomolecules. Conventional FRET-based indicators enable quantitative measurements of analyzes by calculating the ratio between donor and acceptor fluorophores. However, such 'hetero-FRET'-based indicators, which use multiple differently colored fluorophores, restrict the simultaneous use of other colors of fluorescent molecules. To overcome this problem, we developed a 'homo-FRET'-based Ca2+ indicator, W-Cameleon, composed of two identical yellow fluorescent proteins. The binding of Ca2+ to the indicator induces a change in FRET efficiency, which in turn transforms into changes in fluorescence anisotropy. Given that the fluorescence polarization is depolarized by light passing through a high numerical aperture lens and reflecting on a dichroic mirror, we also developed a microscopy technique that reliably detects fluorescence anisotropy with high precision. Our design is aided by photonic-crystal technology, to compensate for the fluorescence depolarization. We thereby succeeded in the simultaneous visualization of three individual intracellular events by using three different fluorescent indicators. Our system may contribute to an expansion of the number of events that can be observed, which will enable a more quantitative understanding of biological phenomena.
Collapse
Affiliation(s)
- Sang-Yeob Kim
- Laboratory for Nanosystems Physiology, Research Institute for Electronic Science, Hokkaido University, Kita 20, Nishi 10, Kita-ku, Sapporo, Hokkaido 001-0020, Japan
| | - Yoshiyuki Arai
- The Institute of Scientific and Industrial Research, Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - Tomomi Tani
- Laboratory for Nanosystems Physiology, Research Institute for Electronic Science, Hokkaido University, Kita 20, Nishi 10, Kita-ku, Sapporo, Hokkaido 001-0020, Japan
| | - Hirofumi Takatsuka
- Scientific Solutions Product Development Division, Product Development Department, Olympus Corporation, 2951 Ishikawa-cho, Hachijoji-shi, Tokyo 192-8507, Japan
| | - Yoshiharu Saito
- Scientific Solutions Product Development Division, Product Development Department, Olympus Corporation, 2951 Ishikawa-cho, Hachijoji-shi, Tokyo 192-8507, Japan
| | - Takayuki Kawashima
- Photonic Lattice, Inc., ICR 2F, 6-6-3 Minami-Yoshinari, Aoba, Sendai, Miyagi 989-3204, Japan
| | - Shojiro Kawakami
- Photonic Lattice, Inc., ICR 2F, 6-6-3 Minami-Yoshinari, Aoba, Sendai, Miyagi 989-3204, Japan
| | - Atsushi Miyawaki
- Laboratory for Cell Function and Dynamics, Brain Science Institute, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Takeharu Nagai
- The Institute of Scientific and Industrial Research, Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| |
Collapse
|
29
|
Cho S, Kim K, Kim T, Park H, Kim JM, Lee S, Kang Y, Chang K, Kim C. High-Contrast Imaging of Cholesterol Crystals in Rabbit Arteries Ex Vivo Using LED-Based Polarization Microscopy. Sensors (Basel) 2018; 18:s18041258. [PMID: 29671778 PMCID: PMC5948913 DOI: 10.3390/s18041258] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Revised: 04/13/2018] [Accepted: 04/17/2018] [Indexed: 11/16/2022]
Abstract
Detection of cholesterol crystals (Chcs) in atherosclerosis disease is important for understanding the pathophysiology of atherosclerosis. Polarization microscopy (PM) has been in use traditionally for detecting Chcs, but they have difficulty in distinguishing Chcs with other crystalline materials in tissue, such as collagens. Thus, most studies using PM have been limited to studying cell-level samples. Although various methods have been proposed to detect Chcs with high specificity, most of them have low signal-to-noise ratios, a high system construction cost, and are difficult to operate due to a complex protocol. To address these problems, we have developed a simple and inexpensive universal serial bus (USB) PM system equipped with a 5700 K cool-white light-emitting diode (LED). In this system, Chcs are shown in a light blue color while collagen is shown in a yellow color. More importantly, the contrast between Chcs and collagens is improved by a factor of 2.3 under an aqueous condition in these PM images. These imaging results are well-matched with the ones acquired with two-photon microscopy (TPM). The system can visualize the features of atherosclerosis that cannot be visualized by the conventional hematoxylin and eosin and oil-red-o staining methods. Thus, we believe that this simple USB PM system can be widely used to identify Chcs in atherosclerosis.
Collapse
Affiliation(s)
- Seonghee Cho
- School of Interdisciplinary Bioscience and Bioengineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea.
| | - Kyungmin Kim
- Department of Creative IT Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea.
| | - Taehoon Kim
- Division of Cardiology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea.
| | - Hyoeun Park
- Division of Cardiology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea.
| | - Jin-Moo Kim
- Division of Cardiology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea.
| | - SeungHoon Lee
- Division of Cardiology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea.
| | - YeonSu Kang
- Division of Cardiology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea.
| | - Kiyuk Chang
- Division of Cardiology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea.
| | - Chulhong Kim
- School of Interdisciplinary Bioscience and Bioengineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea.
- Department of Creative IT Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea.
| |
Collapse
|
30
|
Ramaiya A, Roy B, Bugiel M, Schäffer E. Kinesin rotates unidirectionally and generates torque while walking on microtubules. Proc Natl Acad Sci U S A 2017; 114:10894-9. [PMID: 28973906 DOI: 10.1073/pnas.1706985114] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Cytoskeletal motors drive many essential cellular processes. For example, kinesin-1 transports cargo in a step-wise manner along microtubules. To resolve rotations during stepping, we used optical tweezers combined with an optical microprotractor and torsion balance using highly birefringent microspheres to directly and simultaneously measure the translocation, rotation, force, and torque generated by individual kinesin-1 motors. While, at low adenosine 5'-triphosphate (ATP) concentrations, motors did not generate torque, we found that motors translocating along microtubules at saturating ATP concentrations rotated unidirectionally, producing significant torque on the probes. Accounting for the rotational work makes kinesin a highly efficient machine. These results imply that the motor's gait follows a rotary hand-over-hand mechanism. Our method is generally applicable to study rotational and linear motion of molecular machines, and our findings have implications for kinesin-driven cellular processes.
Collapse
|
31
|
Yao F, Chen C, Liu C, Zhang J, Wang F, Liu K. High-Throughput Optical Imaging and Spectroscopy of One-Dimensional Materials. Chemistry 2017; 23:9703-9710. [PMID: 28378432 DOI: 10.1002/chem.201700731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Indexed: 11/07/2022]
Abstract
Direct visualization of one-dimensional (1D) materials under an optical microscope in ambient conditions is of great significance for their characterizations and applications. However, it is full of challenges to achieve such goal due to their relative small size (ca. 1 nm in diameter) in the optical-diffraction-limited laser spot (ca. 1 μm in diameter). In this Concept article, we introduce a polarization-based optical homodyne detection method that can be used as a general strategy to obtain high-throughput, real-time, optical imaging and in situ spectroscopy of polarization-inhomogeneous 1D materials. We will use carbon nanotubes (CNTs) as an example to demonstrate the applications of such characterization with respect to the absorption signal of individual nanotubes, real-time imaging of individual nanotubes in devices, and statistical structure information of nanotube arrays.
Collapse
Affiliation(s)
- Fengrui Yao
- State Key Laboratory for Mesoscopic Physics, School of Physics, Collaborative Innovation Center of Quantum Matter, Peking University, Beijing, 100871, P. R. China
| | - Cheng Chen
- State Key Laboratory for Mesoscopic Physics, School of Physics, Collaborative Innovation Center of Quantum Matter, Peking University, Beijing, 100871, P. R. China
| | - Can Liu
- State Key Laboratory for Mesoscopic Physics, School of Physics, Collaborative Innovation Center of Quantum Matter, Peking University, Beijing, 100871, P. R. China
| | - Jin Zhang
- Center for Nanochemistry, Beijing Science and Engineering Center for Nanocarbons, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P. R. China
| | - Feng Wang
- Department of Physics, University of California at Berkeley, Advanced Light Source Division and Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Kaihui Liu
- State Key Laboratory for Mesoscopic Physics, School of Physics, Collaborative Innovation Center of Quantum Matter, Peking University, Beijing, 100871, P. R. China
| |
Collapse
|
32
|
Lazarenko VA, Ivanov SV, Ivanov IS, Rosberg EP, Tsukanov AV, Popova LP, Tarabrin DV, Obyedkov EG. [Collagen types ratio in prediction of postoperative ventral hernias]. Khirurgiia (Mosk) 2017. [PMID: 28638011 DOI: 10.17116/hirurgia2017633-36] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
AIM To analyze collagen types ratio in skin and aponeurosis in order to predict postoperative ventral hernias. MATERIAL AND METHODS The trial included 141 patients for the period 2012-2015. Group I (n=65) of patients without ventral hernias was divided into subgroup AI (primary operation, n=41) and BI (re-operation, n=24). Group II consisted of 76 patients with ventral hernias. We performed histological examination of skin and aponeurosis to define the collagen structure of connective tissue. RESULTS There were significant differences between collagen type I/III ratio in skin (2.81±0.52 in group I vs. 1.13±0.48 in group II) and aponeurosis (2.69±0.41 vs. 1.09±0.21, respectively, p≤0.05). We revealed strong direct correlation (r=+0.92) between aponeurosis and skin specimens in one group. Collagen type I level was 73.81±2.74% in subgroup AI and 72.03±2.47% in subgroup BI. Collagen type I was predominant (p≤0.05). CONCLUSION In patients with ventral hernias collagen type I/III ratio in skin is 2.54 times lower than in patients without hernias. Significant correlation of collagen types in skin and aponeurosis (r= +0.92) allows to predict the risk of postoperative ventral hernias on basis of skin fragment.
Collapse
Affiliation(s)
- V A Lazarenko
- Department of surgical diseases #1 Medical University 'Kursk State Medical University' of Ministry of Health of the Russian Federation, Kursk, Russia
| | - S V Ivanov
- Department of surgical diseases #1 Medical University 'Kursk State Medical University' of Ministry of Health of the Russian Federation, Kursk, Russia
| | - I S Ivanov
- Department of surgical diseases #1 Medical University 'Kursk State Medical University' of Ministry of Health of the Russian Federation, Kursk, Russia
| | - E P Rosberg
- Department of surgical diseases #1 Medical University 'Kursk State Medical University' of Ministry of Health of the Russian Federation, Kursk, Russia
| | - A V Tsukanov
- Department of surgical diseases #1 Medical University 'Kursk State Medical University' of Ministry of Health of the Russian Federation, Kursk, Russia
| | - L P Popova
- Department of surgical diseases #1 Medical University 'Kursk State Medical University' of Ministry of Health of the Russian Federation, Kursk, Russia
| | - D V Tarabrin
- Department of surgical diseases #1 Medical University 'Kursk State Medical University' of Ministry of Health of the Russian Federation, Kursk, Russia
| | - E G Obyedkov
- Department of surgical diseases #1 Medical University 'Kursk State Medical University' of Ministry of Health of the Russian Federation, Kursk, Russia
| |
Collapse
|
33
|
Payne CL, Dark MJ, Conway JA, Farina LL. A retrospective study of the prevalence of calcium oxalate crystals in veterinary Aspergillus cases. J Vet Diagn Invest 2016; 29:51-58. [PMID: 27852812 DOI: 10.1177/1040638716672254] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Fungi in the genus Aspergillus are some of the most common fungal pathogens in veterinary species, primarily affecting the respiratory tract. In both human and veterinary cases, calcium oxalate crystals have been documented in sites of Aspergillus infection. Cases in multiple species (16 birds, 15 horses, 5 dogs, 1 ox, and 1 dolphin) were identified that had either positive cultures for Aspergillus sp., or had conidiophores present that could be identified as belonging to the genus Aspergillus. Histologic slides were examined to confirm the presence of oxalate crystals and how often they were identified on the original report. Calcium oxalate deposition was detected in 14 of 38 cases examined, including A. fumigatus, A. versicolor, A. niger, and unspecified Aspergillus sp. infections. Calcium oxalate crystals were identified in 11 of 16 avian cases, as well as in 1 of 1 bovine, 1 of 15 equine, and 1 of 5 canine cases. Crystals were described in only 3 of the 14 original pathology reports of these cases, indicating that identification and reporting of crystals in histologic specimens could be improved. All the tissues with crystals were respiratory tissues with air interfaces, including nasal sinus, trachea, syrinx, lung, and air sac. In cases with crystals identified on H&E-stained sections, crystals were frequently not present or were fewer in number in tissue sections stained with Gomori methenamine silver and periodic acid-Schiff. Routine polarization of slides of fungal infections, especially in the respiratory tract, should be considered to check for calcium oxalate crystals.
Collapse
Affiliation(s)
- Courtney L Payne
- Department of Infectious Diseases and Pathology, College of Veterinary Medicine, University of Florida, Gainesville, FL
| | - Michael J Dark
- Department of Infectious Diseases and Pathology, College of Veterinary Medicine, University of Florida, Gainesville, FL
| | - Julia A Conway
- Department of Infectious Diseases and Pathology, College of Veterinary Medicine, University of Florida, Gainesville, FL
| | - Lisa L Farina
- Department of Infectious Diseases and Pathology, College of Veterinary Medicine, University of Florida, Gainesville, FL
| |
Collapse
|
34
|
Vezzoli S, Manceau M, Leménager G, Glorieux Q, Giacobino E, Carbone L, De Vittorio M, Bramati A. Exciton Fine Structure of CdSe/CdS Nanocrystals Determined by Polarization Microscopy at Room Temperature. ACS Nano 2015; 9:7992-8003. [PMID: 26212764 DOI: 10.1021/acsnano.5b01354] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
We present a method that allows determining the band-edge exciton fine structure of CdSe/CdS dot-in-rods samples based on single particle polarization measurements at room temperature. We model the measured emission polarization of such single particles considering the fine structure properties, the dielectric effect induced by the anisotropic shell, and the measurement configuration. We use this method to characterize the band-edge exciton fine structure splitting of various samples of dot-in-rods. We show that, when the diameter of the CdSe core increases, a transition from a spherical like band-edge exciton symmetry to a rod-like band edge exciton symmetry occurs. This explains the often reported large emission polarization of such particles compared to spherical CdSe/CdS emitters.
Collapse
Affiliation(s)
- Stefano Vezzoli
- Laboratoire Kastler Brossel, UPMC-Sorbonne Universités, CNRS, ENS-PSL Research University, Collège de France , 4, Place Jussieu Case 74, F-75005 Paris, France
- Center for Disruptive Photonic Technology (CDPT), School of Physical and Mathematical Sciences (SPMS), Nanyang Technological University , 21 Nanyang Link, Singapore 637371, Singapore
| | - Mathieu Manceau
- Laboratoire Kastler Brossel, UPMC-Sorbonne Universités, CNRS, ENS-PSL Research University, Collège de France , 4, Place Jussieu Case 74, F-75005 Paris, France
| | - Godefroy Leménager
- Laboratoire Kastler Brossel, UPMC-Sorbonne Universités, CNRS, ENS-PSL Research University, Collège de France , 4, Place Jussieu Case 74, F-75005 Paris, France
- Laboratoire de Physique de la Matière Condensée, CNRS - Ecole Polytechnique , UMR 7643, 91128 Palaiseau, France
| | - Quentin Glorieux
- Laboratoire Kastler Brossel, UPMC-Sorbonne Universités, CNRS, ENS-PSL Research University, Collège de France , 4, Place Jussieu Case 74, F-75005 Paris, France
| | - Elisabeth Giacobino
- Laboratoire Kastler Brossel, UPMC-Sorbonne Universités, CNRS, ENS-PSL Research University, Collège de France , 4, Place Jussieu Case 74, F-75005 Paris, France
| | - Luigi Carbone
- CNR NANOTEC-Istituto di Nanotecnologia U.O. Lecce , c/o Polo di Nanotecnologia-Campus Ecotekne, via Monteroni, 73100 Lecce, Italy
| | - Massimo De Vittorio
- Istituto Italiano di Tecnologia (IIT) , Center for Bio-Molecular Nanotechnologies Via Barsanti sn, 73010 Arnesano (Lecce), Italy
| | - Alberto Bramati
- Laboratoire Kastler Brossel, UPMC-Sorbonne Universités, CNRS, ENS-PSL Research University, Collège de France , 4, Place Jussieu Case 74, F-75005 Paris, France
| |
Collapse
|
35
|
Picinato MC, Martins WP, Giorgenon RC, Santos CKB, Ferriani RA, Navarro PAAS, de Sá Rosa-e-Silva ACJ. The impact of examining the meiotic spindle by polarization microscopy on assisted reproduction outcomes. Fertil Steril 2013; 101:379-84. [PMID: 24220701 DOI: 10.1016/j.fertnstert.2013.10.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Revised: 09/20/2013] [Accepted: 10/07/2013] [Indexed: 12/19/2022]
Abstract
OBJECTIVE To examine the effect of submitting oocytes to polarization microscopy (PM) before intracytoplasmic sperm injection (ICSI). DESIGN Retrospective observational study. SETTING University hospital in Brazil. PATIENT(S) Couples undergoing ICSI. INTERVENTION(S) PM before ICSI (PM group) compared with no PM before ICSI (No-PM group) MAIN OUTCOMES MEASURE(S) Fertilization and cleavage rates, formation of top-quality embryos (TQEs), and implantation, clinical pregnancy, miscarriage, and live-birth rates. RESULT(S) The PM group consisted of 1,000 consecutive oocytes from 201 couples submitted to PM during the year of 2008. The No-PM group consisted of 1,400 oocytes from 249 couples: 700 consecutive oocytes were retrieved before we started using PM and 700 consecutive oocytes were retrieved after we stopped using PM. In the PM group, we observed an increased fertilization rate (79.7% vs. 72.5%, PM group vs. No-PM group, respectively) but reduced cleavage rate (86.2% vs. 92.5%) and TQE formation (33.1% vs. 49.9%). Implantation (18.7% vs. 20.6%), clinical pregnancy (31.8% vs. 33.3%), miscarriage (21.9% vs. 15.7%), and live-birth (24.9% vs. 28.1%) rates were not significantly different between groups. CONCLUSION(S) Use of PM was associated with increased fertilization rate but reduced cleavage rate and TQE formation; no significant difference was observed for implantation, clinical pregnancy, or live-birth rates.
Collapse
Affiliation(s)
- Maria C Picinato
- Department of Gynecology and Obstetrics, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Wellington P Martins
- Department of Gynecology and Obstetrics, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil; National Institute of Science and Technology, National Counsel of Technological and Scientific Development, Hormones and Women's Health, Ribeirão Preto, São Paulo, Brazil; School of Ultrasonography and Medical Recycling of Ribeirão Preto, Ribeirão Preto, São Paulo, Brazil
| | - Roberta C Giorgenon
- Department of Gynecology and Obstetrics, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Camila K B Santos
- Department of Gynecology and Obstetrics, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Rui A Ferriani
- Department of Gynecology and Obstetrics, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil; National Institute of Science and Technology, National Counsel of Technological and Scientific Development, Hormones and Women's Health, Ribeirão Preto, São Paulo, Brazil
| | - Paula A A S Navarro
- Department of Gynecology and Obstetrics, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil; National Institute of Science and Technology, National Counsel of Technological and Scientific Development, Hormones and Women's Health, Ribeirão Preto, São Paulo, Brazil
| | - Ana C J de Sá Rosa-e-Silva
- Department of Gynecology and Obstetrics, Faculty of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil; National Institute of Science and Technology, National Counsel of Technological and Scientific Development, Hormones and Women's Health, Ribeirão Preto, São Paulo, Brazil.
| |
Collapse
|
36
|
Mantovani A, Locati M. Tumor-associated macrophages as a paradigm of macrophage plasticity, diversity, and polarization: lessons and open questions. Arterioscler Thromb Vasc Biol 2013; 33:1478-83. [PMID: 23766387 DOI: 10.1161/atvbaha.113.300168] [Citation(s) in RCA: 188] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Macrophages are present in all body compartments, including cancerous tissues, and their functions are profoundly affected by signals from the microenvironment under homeostatic and pathological conditions. Tumor-associated macrophages are a major cellular component of cancer-related inflammation and have served as a paradigm for the plasticity and functional polarization of mononuclear phagocytes. Tumor-associated macrophages can exert dual influence of cancer depending on the activation state, with classically activated (M1) and alternatively activated (M2) cells generally exerting antitumoral and protumoral functions, respectively. These are extremes in a continuum of polarization states in a universe of diversity. Tumor-associated macrophages affect virtually all aspects of tumor tissues, including stem cells, metabolism, angiogenesis, invasion, and metastasis. Progress has been made in defining signaling molecules, transcription factors, epigenetic changes, and repertoire of microRNAs underlying macrophage polarization. Preclinical and early clinical data suggest that macrophages may serve as tools for the development of innovative diagnostic and therapeutic strategies in cancer and chronic nonresolving inflammatory diseases.
Collapse
|
37
|
Maturana LG, Pierucci A, Simões GF, Vidigal M, Duek EAR, Vidal BC, Oliveira ALR. Enhanced peripheral nerve regeneration by the combination of a polycaprolactone tubular prosthesis and a scaffold of collagen with supramolecular organization. Brain Behav 2013; 3:417-30. [PMID: 24381812 PMCID: PMC3869682 DOI: 10.1002/brb3.145] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2012] [Revised: 05/01/2013] [Accepted: 05/03/2013] [Indexed: 12/12/2022] Open
Abstract
The purpose of this study was to investigate the influence of implanting collagen with a supramolecular organization on peripheral nerve regeneration, using the sciatic nerve tubulization technique. For this purpose, adult female Sprague Dawley rats were divided into five groups: (1) TP - sciatic nerve repaired with empty polyethylene tubular prothesis (n = 10), (2) TPCL - nerve repair with empty polycaprolactone (PCL) tubing (n = 8), (3) TPCLF - repair with PCL tubing filled with an implant of collagen with a supramolecular organization (n = 10), (4) AG - animals that received a peripheral nerve autograft (n = 8), and (5) Normal nerves (n = 8). The results were assessed by quantification of the regenerated fibers, nerve morphometry, and transmission electron microscopy, 60 days after surgery. Immunohistochemistry and polarization microscopy were also used to analyze the regenerated nerve structure and cellular elements. The results showed that the AG group presented a larger number of regenerated axons. However, the TPCL and TPCLF groups presented more compact regenerated fibers with a morphometric profile closer to normal, both at the tube midpoint and 2 mm distal to the prosthesis. These findings were reinforced by polarization microscopy, which indicated a better collagen/axons suprastructural organization in the TPCLF derived samples. In addition, the immunohistochemical results obtained using the antibody anti-p75NTR as a Schwann cell reactivity marker demonstrated that the Schwann cells were more reactive during the regenerative process in the TPCLF group as compared to the TPCL group and the normal sciatic nerve. Altogether, the results of this study indicated that the implant of collagen with a supramolecular organization positively influenced and stimulated the regeneration process through the nerve gap, resulting in the formation of a better morphologically arranged tissue.
Collapse
Affiliation(s)
- Luiz G Maturana
- Department of Structural and Functional Biology, University of Campinas - UNICAMP Campinas, Brazil ; Department of Morphology, Federal University of Mucuri and Jequitinhonha Valley - UFVJM Diamantina, Brazil
| | - Amauri Pierucci
- Department of Structural and Functional Biology, University of Campinas - UNICAMP Campinas, Brazil ; Department of Morphology, Federal University of Mucuri and Jequitinhonha Valley - UFVJM Diamantina, Brazil
| | - Gustavo F Simões
- Department of Structural and Functional Biology, University of Campinas - UNICAMP Campinas, Brazil
| | - Mateus Vidigal
- Department of Structural and Functional Biology, University of Campinas - UNICAMP Campinas, Brazil
| | - Eliana A R Duek
- Department of Materials Engineering, Unicamp Campinas, Brazil
| | - Benedicto C Vidal
- Department of Structural and Functional Biology, University of Campinas - UNICAMP Campinas, Brazil
| | - Alexandre L R Oliveira
- Department of Structural and Functional Biology, University of Campinas - UNICAMP Campinas, Brazil
| |
Collapse
|
38
|
Backlund MP, Lew MD, Backer AS, Sahl SJ, Grover G, Agrawal A, Piestun R, Moerner WE. The double-helix point spread function enables precise and accurate measurement of 3D single-molecule localization and orientation. Proc SPIE Int Soc Opt Eng 2013; 8590:85900. [PMID: 24817798 DOI: 10.1117/12.2001671] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Single-molecule-based super-resolution fluorescence microscopy has recently been developed to surpass the diffraction limit by roughly an order of magnitude. These methods depend on the ability to precisely and accurately measure the position of a single-molecule emitter, typically by fitting its emission pattern to a symmetric estimator (e.g. centroid or 2D Gaussian). However, single-molecule emission patterns are not isotropic, and depend highly on the orientation of the molecule's transition dipole moment, as well as its z-position. Failure to account for this fact can result in localization errors on the order of tens of nm for in-focus images, and ~50-200 nm for molecules at modest defocus. The latter range becomes especially important for three-dimensional (3D) single-molecule super-resolution techniques, which typically employ depths-of-field of up to ~2 μm. To address this issue we report the simultaneous measurement of precise and accurate 3D single-molecule position and 3D dipole orientation using the Double-Helix Point Spread Function (DH-PSF) microscope. We are thus able to significantly improve dipole-induced position errors, reducing standard deviations in lateral localization from ~2x worse than photon-limited precision (48 nm vs. 25 nm) to within 5 nm of photon-limited precision. Furthermore, by averaging many estimations of orientation we are able to improve from a lateral standard deviation of 116 nm (~4x worse than the precision, 28 nm) to 34 nm (within 6 nm).
Collapse
Affiliation(s)
| | - Matthew D Lew
- Department of Chemistry, Stanford University, Stanford, CA 94305
| | - Adam S Backer
- Department of Chemistry, Stanford University, Stanford, CA 94305 ; Institute for Computational and Mathematical Engineering, Stanford University, Stanford, CA 94305
| | - Steffen J Sahl
- Department of Chemistry, Stanford University, Stanford, CA 94305
| | - Ginni Grover
- Department of Electrical, Computer, and Energy Engineering, University of Colorado, Boulder, CO 80309
| | - Anurag Agrawal
- Department of Electrical, Computer, and Energy Engineering, University of Colorado, Boulder, CO 80309
| | - Rafael Piestun
- Department of Electrical, Computer, and Energy Engineering, University of Colorado, Boulder, CO 80309
| | - W E Moerner
- Department of Chemistry, Stanford University, Stanford, CA 94305
| |
Collapse
|
39
|
Liu Y, York T, Akers W, Sudlow G, Gruev V, Achilefu S. Complementary fluorescence- polarization microscopy using division-of-focal-plane polarization imaging sensor. J Biomed Opt 2012; 17:116001. [PMID: 23117796 PMCID: PMC3484265 DOI: 10.1117/1.jbo.17.11.116001] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Fluorescence microscopy offers high sensitivity for disease diagnosis. However, little structural information is revealed by this method, requiring another technique to localize the source of fluorescence. We developed a complementary fluorescence-polarization microscope. We used a division-of-focal-plane charge coupled device polarization sensor to enable real-time video rate polarization imaging without any moving parts. The polarization information provided by the microscope enabled detection of structural element and complements the fluorescence information. Application of this multimodal system for cancer imaging using a tumor selective molecular probe revealed the association of diminished structural integrity of tumor tissue with high fluorescence of the imaging agent compared to surrounding normal tissue. This study demonstrates a new paradigm to improve cancer detection and diagnosis.
Collapse
Affiliation(s)
- Yang Liu
- Washington University, Department of Radiology, St. Louis, Missouri 63110
- Washington University, Department of Biomedical Engineering, St. Louis, Missouri 63110
| | - Timothy York
- Washington University, Department of Computer Science and Engineering, St. Louis, Missouri 63110
| | - Walter Akers
- Washington University, Department of Radiology, St. Louis, Missouri 63110
| | - Gail Sudlow
- Washington University, Department of Radiology, St. Louis, Missouri 63110
| | - Viktor Gruev
- Washington University, Department of Computer Science and Engineering, St. Louis, Missouri 63110
- Address all correspondence to: Samuel Achilefu, Washington University, Department of Radiology, St. Louis, Missouri 63110. Tel: 314-362-8599; Fax: 314-747-5191; E-mail: , Viktor Gruev, Washington University, Department of Computer Science and Engineering, St. Louis, Missouri 63110. Tel: 314-935-4465; Fax: 314-935-7302; E-mail:
| | - Samuel Achilefu
- Washington University, Department of Radiology, St. Louis, Missouri 63110
- Washington University, Department of Biomedical Engineering, St. Louis, Missouri 63110
- Address all correspondence to: Samuel Achilefu, Washington University, Department of Radiology, St. Louis, Missouri 63110. Tel: 314-362-8599; Fax: 314-747-5191; E-mail: , Viktor Gruev, Washington University, Department of Computer Science and Engineering, St. Louis, Missouri 63110. Tel: 314-935-4465; Fax: 314-935-7302; E-mail:
| |
Collapse
|
40
|
Albrechtová JTP, Dueggelin M, Duerrenberger M, Wagner E. Changes in the geometry of the apical meristem and concomitant changes in cell wall properties during photoperiodic induction of flowering in Chenopodium rubrum. New Phytol 2004; 163:263-269. [PMID: 33873613 DOI: 10.1111/j.1469-8137.2004.01119.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
• A putative role for local forces at the surface of the apical meristem for plant organogenesis has been postulated in various studies. To correlate changes in morphogenesis to altered local forces, we followed the geometry of the apical meristem during photoperiodic flower induction in Chenopodium rubrum. • The shape of the apical meristem was determined using cryo-scanning electron microscopy. Cell wall properties on the surface of the dome were visualized using uplight polarization microscopy. • A subtle depression at the summit of the apical dome, typical for the vegetative state, became rounded during the early phase of flower induction. The observed changes were quantified as an increase in the ratio of height to diameter of the dome. In parallel, the properties of cell walls on the surface of the dome changed. • The changes in geometry of the apical meristem were attributed to water movement in the meristem paralleled by a change in cell wall properties at the top of the dome. The results support the hypothesis that local changes in surface tension precede initiation of organ primordia.
Collapse
Affiliation(s)
- Jolana T P Albrechtová
- Institute of Biology II, University of Freiburg, Schänzlestrase 1, D-79104 Freiburg, Germany
| | - Marcel Dueggelin
- Microscopy Center, Pharmazentrum, University of Basel, Klingelbergstrasse 50/70, CH-4056 Basel, Switzerland
| | - Markus Duerrenberger
- Microscopy Center, Pharmazentrum, University of Basel, Klingelbergstrasse 50/70, CH-4056 Basel, Switzerland
| | - Edgar Wagner
- Institute of Biology II, University of Freiburg, Schänzlestrase 1, D-79104 Freiburg, Germany
| |
Collapse
|