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Carr BJ, Skitsko D, Song J, Li Z, Ju MJ, Moritz OL. Prominin-1 null Xenopus laevis develop subretinal drusenoid-like deposits, cone-rod dystrophy, and RPE atrophy. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.06.03.597229. [PMID: 38895468 PMCID: PMC11185615 DOI: 10.1101/2024.06.03.597229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/21/2024]
Abstract
Mutations in the PROMININ-1 ( PROM1) gene are associated with inherited, non-syndromic vision loss. Here, we used CRISPR/Cas9 to induce truncating prom1 -null mutations in Xenopus laevis to create a disease model. We then tracked progression of retinal degeneration in these animals from the ages of 6 weeks to 3 years old. We found that retinal degeneration caused by prom1 -null is age-dependent and likely involves death or damage to the retinal pigment epithelium (RPE) that precedes photoreceptor degeneration. As prom1 -null frogs age, they develop large cellular debris deposits in the subretinal space and outer segment layer which resemble subretinal drusenoid deposits (SDD) in their location, histology, and representation in color fundus photography and optical coherence tomography (OCT). In older frogs, these SDD-like deposits accumulate in size and number, and they are present before retinal degeneration occurs. Evidence for an RPE origin of these deposits includes infiltration of pigment granules into the deposits, thinning of RPE as measured by OCT, and RPE disorganization as measured by histology and OCT. The appearance and accumulation of SDD-like deposits and RPE thinning and disorganization in our animal model suggests an underlying disease mechanism for prom1 -null mediated blindness of death and dysfunction of the RPE preceding photoreceptor degeneration, instead of direct effects upon photoreceptor outer segment morphogenesis, as was previously hypothesized.
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Obasanmi G, Uppal M, Cui JZ, Xi J, Ju MJ, Song J, To E, Li S, Khan W, Cheng D, Zhu J, Irani L, Samad I, Zhu J, Yoo HS, Aubert A, Stoddard J, Neuringer M, Granville DJ, Matsubara JA. Granzyme B degrades extracellular matrix and promotes inflammation and choroidal neovascularization. Angiogenesis 2024:10.1007/s10456-024-09909-9. [PMID: 38498232 DOI: 10.1007/s10456-024-09909-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Accepted: 02/11/2024] [Indexed: 03/20/2024]
Abstract
Age-related macular degeneration (AMD) is a common retinal neurodegenerative disease among the elderly. Neovascular AMD (nAMD), a leading cause of AMD-related blindness, involves choroidal neovascularization (CNV), which can be suppressed by anti-angiogenic treatments. However, current CNV treatments do not work in all nAMD patients. Here we investigate a novel target for AMD. Granzyme B (GzmB) is a serine protease that promotes aging, chronic inflammation and vascular permeability through the degradation of the extracellular matrix (ECM) and tight junctions. Extracellular GzmB is increased in retina pigment epithelium (RPE) and mast cells in the choroid of the healthy aging outer retina. It is further increased in donor eyes exhibiting features of nAMD and CNV. Here, we show in RPE-choroidal explant cultures that exogenous GzmB degrades the RPE-choroid ECM, promotes retinal/choroidal inflammation and angiogenesis while diminishing anti-angiogenic factor, thrombospondin-1 (TSP-1). The pharmacological inhibition of either GzmB or mast-cell degranulation significantly reduces choroidal angiogenesis. In line with our in vitro data, GzmB-deficiency reduces the extent of laser-induced CNV lesions and the age-related deterioration of electroretinogram (ERG) responses in mice. These findings suggest that targeting GzmB, a serine protease with no known endogenous inhibitors, may be a potential novel therapeutic approach to suppress CNV in nAMD.
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Affiliation(s)
- Gideon Obasanmi
- Department of Ophthalmology and Visual Sciences, UBC, Vancouver, BC, Canada
| | - Manjosh Uppal
- Department of Ophthalmology and Visual Sciences, UBC, Vancouver, BC, Canada
| | - Jing Z Cui
- Department of Ophthalmology and Visual Sciences, UBC, Vancouver, BC, Canada
| | - Jeanne Xi
- Department of Ophthalmology and Visual Sciences, UBC, Vancouver, BC, Canada
| | - Myeong Jin Ju
- Department of Ophthalmology and Visual Sciences, UBC, Vancouver, BC, Canada
- School of Biomedical Engineering, UBC, Vancouver, BC, Canada
| | - Jun Song
- School of Biomedical Engineering, UBC, Vancouver, BC, Canada
| | - Eleanor To
- Department of Ophthalmology and Visual Sciences, UBC, Vancouver, BC, Canada
| | - Siqi Li
- Department of Ophthalmology and Visual Sciences, UBC, Vancouver, BC, Canada
| | - Wania Khan
- Department of Ophthalmology and Visual Sciences, UBC, Vancouver, BC, Canada
| | - Darian Cheng
- Department of Ophthalmology and Visual Sciences, UBC, Vancouver, BC, Canada
| | - John Zhu
- Department of Ophthalmology and Visual Sciences, UBC, Vancouver, BC, Canada
| | - Lyden Irani
- Department of Ophthalmology and Visual Sciences, UBC, Vancouver, BC, Canada
| | - Isa Samad
- Department of Ophthalmology and Visual Sciences, UBC, Vancouver, BC, Canada
| | - Julie Zhu
- Department of Ophthalmology and Visual Sciences, UBC, Vancouver, BC, Canada
| | - Hyung-Suk Yoo
- Department of Ophthalmology and Visual Sciences, UBC, Vancouver, BC, Canada
| | - Alexandre Aubert
- International Collaboration On Repair Discoveries (ICORD), Vancouver Coastal Health Research Institute, University of British Columbia (UBC), Vancouver, BC, Canada
- Department of Pathology and Laboratory Medicine, UBC, Vancouver, BC, Canada
| | | | | | - David J Granville
- International Collaboration On Repair Discoveries (ICORD), Vancouver Coastal Health Research Institute, University of British Columbia (UBC), Vancouver, BC, Canada
- Department of Pathology and Laboratory Medicine, UBC, Vancouver, BC, Canada
| | - Joanne A Matsubara
- Department of Ophthalmology and Visual Sciences, UBC, Vancouver, BC, Canada.
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Miao Y, Jung H, Hsu D, Song J, Ni S, Ma D, Jian Y, Makita S, Yasuno Y, Sarunic MV, Stephenson KAJ, Paton K, Mammo Z, Ju MJ. Polarization-Diversity Optical Coherence Tomography Assessment of Choroidal Nevi. Invest Ophthalmol Vis Sci 2023; 64:6. [PMID: 37930688 PMCID: PMC10629548 DOI: 10.1167/iovs.64.14.6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 10/09/2023] [Indexed: 11/07/2023] Open
Abstract
Purpose The purpose of this study was to demonstrate the utility of polarization-diversity optical coherence tomography (PD-OCT), a noninvasive imaging technique with melanin-specific contrast, in the quantitative and qualitative assessment of choroidal nevi. Methods Nevi were imaged with a custom-built 55-degree field-of-view (FOV) 400 kHz PD-OCT system. Imaging features on PD-OCT were compared to those on fundus photography, auto-fluorescence, ultrasound, and non-PD-OCT images. Lesions were manually segmented for size measurement and metrics for objective assessment of melanin distributions were calculated, including degree of polarization uniformity (DOPU), attenuation coefficient, and melanin occupancy rate (MOR). Results We imaged 17 patients (mean age = 69.5 years, range = 37-90) with 11 pigmented, 3 non-pigmented, and 3 mixed pigmentation nevi. Nevi with full margin acquisition had an average longest basal diameter of 5.1 mm (range = 2.99-8.72 mm) and average height of 0.72 mm (range = 0.37 mm-2.09 mm). PD-OCT provided clear contrast of choroidal melanin content, distribution, and delineation of nevus margins for melanotic nevi. Pigmented nevi were found to have lower DOPU, higher attenuation coefficient, and higher MOR than non-pigmented lesions. Melanin content on PD-OCT was consistent with pigmentation on fundus in 15 of 17 nevi (88%). Conclusions PD-OCT allows objective assessment of choroidal nevi melanin content and distribution. In addition, melanin-specific contrast by PD-OCT enables clear nevus margin delineation and may improve serial growth surveillance. Further investigation is needed to determine the clinical significance and prognostic value of melanin characterization by PD-OCT in the evaluation of choroidal nevi.
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Affiliation(s)
- Yusi Miao
- Department of Ophthalmology and Visual Sciences, University of British Columbia, Vancouver, British Columbia, Canada
| | - Hoyoung Jung
- Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Destiny Hsu
- School of Engineering Science, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Jun Song
- School of Biomedical Engineering, University of British Columbia, Vancouver, British Columbia, Canada
| | - Shuibin Ni
- Case Eye Institute, Oregon Health & Science University, Portland, Oregon, United States
| | - Da Ma
- Gerontology and Geriatric Medicine, Wake Forest University School of Medicine, Winston-Salem, North Carolina, United States
| | - Yifan Jian
- Case Eye Institute, Oregon Health & Science University, Portland, Oregon, United States
| | - Shuichi Makita
- Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Yoshiaki Yasuno
- Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Marinko V. Sarunic
- School of Engineering Science, Simon Fraser University, Burnaby, British Columbia, Canada
- Department of Medical Physics and Biomedical Engineering, University College London, London, England, United Kingdom
- Institute of Ophthalmology, University College London, London, England, United Kingdom
| | - Kirk A. J. Stephenson
- Department of Ophthalmology and Visual Sciences, University of British Columbia, Vancouver, British Columbia, Canada
| | - Katherine Paton
- Department of Ophthalmology and Visual Sciences, University of British Columbia, Vancouver, British Columbia, Canada
| | - Zaid Mammo
- Department of Ophthalmology and Visual Sciences, University of British Columbia, Vancouver, British Columbia, Canada
| | - Myeong Jin Ju
- Department of Ophthalmology and Visual Sciences, University of British Columbia, Vancouver, British Columbia, Canada
- School of Biomedical Engineering, University of British Columbia, Vancouver, British Columbia, Canada
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Zhang ZJ, Wu YR, Chien Y, Chen Y, Chiou SH, Chen SJ, Syu JP, Kuo WC. Quantification of microvascular change of retinal degeneration in Royal College of Surgeons rats using high-resolution spectral domain optical coherence tomography angiography. JOURNAL OF BIOMEDICAL OPTICS 2023; 28:106001. [PMID: 37841506 PMCID: PMC10570624 DOI: 10.1117/1.jbo.28.10.106001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 08/16/2023] [Accepted: 08/18/2023] [Indexed: 10/17/2023]
Abstract
Significance For research on retinitis pigmentosa in humans, the Royal College of Surgeons (RCS) rat is commonly used as the primary animal model since the disease process is similar. Therefore, it is necessary to understand how the disease develops and determine whether the treatment is effective. Aim In this study, structural and microvascular change of retinal degeneration in RCS rats was assessed non-invasively on specific dates over 3.5 months. Approach Using a high-resolution spectral domain (SD) optical coherence tomography angiography (OCTA), the retinal degeneration in RCS rats, from day 14 until day 126, was qualitatively and quantitatively analyzed. Results Aside from the thinning of the retina thickness starting from 2 weeks of age, blood vessels in the deep layer of the retina also began to degenerate at about 4 weeks of age. Hole structures appeared at the inner nuclear layer and the inner plexiform layer by the age of 10 weeks. Observations of abnormal angiogenesis in the choroid began by 12 weeks of age. Conclusions We conducted a longitudinal study of retina degeneration structure and vascular changes in an RCS rat model using a supercontinuum laser based high-resolution SD-OCTA. Combined with OCTA, OCT leads to a better understanding of photoreceptor pathology as retinal degeneration by identifying tissue and vessel loss.
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Affiliation(s)
- Zhen-Jie Zhang
- National Yang Ming Chiao Tung University, Institute of Biophotonics, Taipei, Taiwan
| | - You-Ren Wu
- Taipei Veterans General Hospital, Department of Medical Research, Taipei, Taiwan
- National Yang Ming Chiao Tung University, Institute of Pharmacology, Taipei, Taiwan
| | - Yueh Chien
- Taipei Veterans General Hospital, Department of Medical Research, Taipei, Taiwan
- National Yang Ming Chiao Tung University, Institute of Pharmacology, Taipei, Taiwan
| | - Yang Chen
- National Yang Ming Chiao Tung University, Institute of Biophotonics, Taipei, Taiwan
| | - Shih-Hwa Chiou
- Taipei Veterans General Hospital, Department of Medical Research, Taipei, Taiwan
- National Yang Ming Chiao Tung University, Institute of Pharmacology, Taipei, Taiwan
- Taipei Veterans General Hospital, Department of Ophthalmology, Taiwan
| | - Shih-Jen Chen
- Taipei Veterans General Hospital, Department of Ophthalmology, Taiwan
- National Yang Ming Chiao Tung University, School of Medicine, Taiwan
| | - Jia-Pu Syu
- National Yang Ming Chiao Tung University, Institute of Biophotonics, Taipei, Taiwan
| | - Wen-Chuan Kuo
- National Yang Ming Chiao Tung University, Institute of Biophotonics, Taipei, Taiwan
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Makita S, Miura M, Azuma S, Mino T, Yasuno Y. Synthesizing the degree of polarization uniformity from non-polarization-sensitive optical coherence tomography signals using a neural network. BIOMEDICAL OPTICS EXPRESS 2023; 14:1522-1543. [PMID: 37078056 PMCID: PMC10110301 DOI: 10.1364/boe.482199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 03/01/2023] [Accepted: 03/01/2023] [Indexed: 05/03/2023]
Abstract
Degree of polarization uniformity (DOPU) imaging obtained by polarization-sensitive optical coherence tomography (PS-OCT) has the potential to provide biomarkers for retinal diseases. It highlights abnormalities in the retinal pigment epithelium that are not always clear in the OCT intensity images. However, a PS-OCT system is more complicated than conventional OCT. We present a neural-network-based approach to estimate the DOPU from standard OCT images. DOPU images were used to train a neural network to synthesize the DOPU from single-polarization-component OCT intensity images. DOPU images were then synthesized by the neural network, and the clinical findings from ground truth DOPU and synthesized DOPU were compared. There is a good agreement in the findings for RPE abnormalities: recall was 0.869 and precision was 0.920 for 20 cases with retinal diseases. In five cases of healthy volunteers, no abnormalities were found in either the synthesized or ground truth DOPU images. The proposed neural-network-based DOPU synthesis method demonstrates the potential of extending the features of retinal non-PS OCT.
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Affiliation(s)
- Shuichi Makita
- Computational Optics Group, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305–8573, Japan
| | - Masahiro Miura
- Department of Ophthalmology, Tokyo Medical University Ibaraki Medical Center, 3-20-1 Chuo, Ami, Ibaraki 300-0395, Japan
| | - Shinnosuke Azuma
- Topcon Corporation, 75–1 Hasunumacho, Itabashi, Tokyo 174-8580, Japan
| | - Toshihiro Mino
- Topcon Corporation, 75–1 Hasunumacho, Itabashi, Tokyo 174-8580, Japan
| | - Yoshiaki Yasuno
- Computational Optics Group, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305–8573, Japan
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Chen G, Wang W, Li Y. Comparative study of OCTA algorithms with a high-sensitivity multi-contrast Jones matrix OCT system for human skin imaging. BIOMEDICAL OPTICS EXPRESS 2022; 13:4718-4736. [PMID: 36187265 PMCID: PMC9484425 DOI: 10.1364/boe.462941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 07/21/2022] [Accepted: 07/28/2022] [Indexed: 06/16/2023]
Abstract
The multi-contrast Jones matrix OCT (JMT) system can not only improve the tissue-specific contrast but also enhance the sensitivity of detecting flow, which is gaining increasing attention. However, for the JMT system, there is currently a lack of studies evaluating and guiding the selection of suitable angiography algorithms to map the most appealing quality of angiograms for clinical use. In this paper, by a homemade high-sensitivity multi-contrast JMT system based 200 kHz swept source, the performance of two complex-signal-based OCTA methods that are insensitive to phase instability and one amplitude-signal-based OCTA method are compared for in-vivo imaging of human skin qualitatively and quantitatively. Six metrics, including vascular connectivity, image contrast-to-noise ratio, image signal-to-noise ratio, vessel diameter index, blood vessel density, and processing time, are assessed. The results show that the vascular networks processed by all OCTA methods and the texture of skin could be visualized simultaneously and markedly. Additionally, the complex-signal-based OCTA methods successfully suppress phase instabilities and even outperform the amplitude-signal-based OCTA algorithm in some indicators. This paper has a certain guiding significance for selecting an appropriate angiography algorithm and expanding the application field with this system.
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Affiliation(s)
- Guoqiang Chen
- Key Laboratory of Photoelectronic Imaging Technology and System of Ministry of Education of China, School of Optics and Photonics, Beijing Institute of Technology, 5 South Zhongguancun Street, Beijing 100081, China
| | - Wen’ai Wang
- Key Laboratory of Photoelectronic Imaging Technology and System of Ministry of Education of China, School of Optics and Photonics, Beijing Institute of Technology, 5 South Zhongguancun Street, Beijing 100081, China
- Institute of Engineering Medicine, Beijing Institute of Technology, 5 South Zhongguancun Street, Beijing 100081, China
| | - Yanqiu Li
- Key Laboratory of Photoelectronic Imaging Technology and System of Ministry of Education of China, School of Optics and Photonics, Beijing Institute of Technology, 5 South Zhongguancun Street, Beijing 100081, China
- Institute of Engineering Medicine, Beijing Institute of Technology, 5 South Zhongguancun Street, Beijing 100081, China
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Evaluation of choroidal melanin-containing tissue in healthy Japanese subjects by polarization-sensitive optical coherence tomography. Sci Rep 2022; 12:4048. [PMID: 35260673 PMCID: PMC8904585 DOI: 10.1038/s41598-022-07818-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 02/24/2022] [Indexed: 11/08/2022] Open
Abstract
In this study, the choroidal melanin content in healthy eyes was evaluated with polarization-sensitive optical coherence tomography (PS-OCT). We evaluated 105 healthy eyes of 105 Japanese subjects. The mean thickness of melanin-containing tissue in the choroid (thickness of MeCh) and the choroidal melanin occupancy rate within a 5-mm circular region from the foveal center were calculated using the degree of polarization uniformity obtained by PS-OCT and compared with the choroidal thickness, patient age, and axial length. To evaluate regional variations, the 5-mm circular region was divided into a center area and an outer ring area, and the outer ring area was further divided into four areas (nasal, temporal, superior, and inferior). The mean thickness of MeCh showed a significant positive correlation with the choroidal thickness. The mean choroidal melanin occupancy rate showed a significant positive correlation with age. The mean choroidal melanin occupancy rate of the center area was significantly larger than that of the outer ring area. The mean thickness of MeCh and choroidal melanin occupancy rate of the nasal area were significantly lower than those of other areas. The distribution of melanin-containing tissue in the choroid varies significantly with age and location.
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Objective evaluation of choroidal melanin loss in patients with Vogt-Koyanagi-Harada disease using polarization-sensitive optical coherence tomography. Sci Rep 2022; 12:3526. [PMID: 35241784 PMCID: PMC8894486 DOI: 10.1038/s41598-022-07591-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 02/21/2022] [Indexed: 11/16/2022] Open
Abstract
In this study, sunset glow fundus was evaluated in patients with Vogt–Koyanagi–Harada (VKH) disease using polarization-sensitive optical coherence tomography (PS-OCT). We evaluated 40 VKH eyes (20 patients) and 59 healthy eyes (59 age-matched controls). VKH eyes were divided into three groups according to color fundus images: sunset (17 eyes), potential sunset (13 eyes), and non-sunset (10 eyes). Choroidal melanin thickness (ChMeT) and the choroidal melanin thickness ratio (ChMeTratio) were calculated based on the degree of polarization uniformity from PS-OCT. ChMeT was significantly lower in sunset eyes than in non-sunset or control eyes (P = 0.003). The ChMeTratios of sunset or potential sunset eyes were significantly lower than those of non-sunset or control eyes (P = 0.04). Regional evaluation of ChMeT and the ChMeTratio showed that choroidal depigmentation predominantly occurred in the macula’s outer ring area (P = 0.002). The areas under receiver operating characteristic curves discriminating combined sunset (sunset and potential sunset) from non-sunset eyes were 0.983 and 0.997 for ChMeT and the ChMeTratio, respectively. Time course evaluation of 12 eyes from disease onset showed that ChMeT and the ChMeTratio significantly decreased over time. PS-OCT may be useful for objectively evaluating choroidal depigmentation in patients with VKH disease.
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El-Sadek IA, Miyazawa A, Shen LTW, Makita S, Mukherjee P, Lichtenegger A, Matsusaka S, Yasuno Y. Three-dimensional dynamics optical coherence tomography for tumor spheroid evaluation. BIOMEDICAL OPTICS EXPRESS 2021; 12:6844-6863. [PMID: 34858684 PMCID: PMC8606131 DOI: 10.1364/boe.440444] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 09/25/2021] [Accepted: 09/27/2021] [Indexed: 05/02/2023]
Abstract
We present a completely label-free three-dimensional (3D) optical coherence tomography (OCT)-based tissue dynamics imaging method for visualization and quantification of the metabolic and necrotic activities of tumor spheroid. Our method is based on a custom 3D scanning protocol that is designed to capture volumetric tissue dynamics tomography images only in a few tens of seconds. The method was applied to the evaluation of a tumor spheroid. The time-course viability alteration and anti-cancer drug response of the spheroid were visualized qualitatively and analyzed quantitatively. The similarity between the OCT-based dynamics images and fluorescence microscope images was also demonstrated.
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Affiliation(s)
- Ibrahim Abd El-Sadek
- Computational Optics Group, University of Tsukuba, Tsukuba, Ibaraki 305-8573, Japan
- Department of Physics, Faculty of Science, Damietta University, New Damietta City, 34517, Damietta, Egypt
| | | | - Larina Tzu-Wei Shen
- Clinical Research and Regional Innovation, Faculty of Medicine, University of Tsukuba, Ibaraki 305-8575, Japan
| | - Shuichi Makita
- Computational Optics Group, University of Tsukuba, Tsukuba, Ibaraki 305-8573, Japan
| | - Pradipta Mukherjee
- Computational Optics Group, University of Tsukuba, Tsukuba, Ibaraki 305-8573, Japan
| | - Antonia Lichtenegger
- Computational Optics Group, University of Tsukuba, Tsukuba, Ibaraki 305-8573, Japan
- Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Währinger Gürtel 18-20, 4L, 1090, Vienna, Austria
| | - Satoshi Matsusaka
- Clinical Research and Regional Innovation, Faculty of Medicine, University of Tsukuba, Ibaraki 305-8575, Japan
| | - Yoshiaki Yasuno
- Computational Optics Group, University of Tsukuba, Tsukuba, Ibaraki 305-8573, Japan
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