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Xin X, Clark D, Ang KC, van Rossum DB, Copper J, Xiao X, La Riviere PJ, Cheng KC. Synchrotron microCT imaging of soft tissue in juvenile zebrafish reveals retinotectal projections. Proc SPIE Int Soc Opt Eng 2017; 10060. [PMID: 32733117 DOI: 10.1117/12.2267477] [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: 11/14/2022]
Abstract
Biomedical research and clinical diagnosis would benefit greatly from full volume determinations of anatomical phenotype. Comprehensive tools for morphological phenotyping are central for the emerging field of phenomics, which requires high-throughput, systematic, accurate, and reproducible data collection from organisms affected by genetic, disease, or environmental variables. Theoretically, complete anatomical phenotyping requires the assessment of every cell type in the whole organism, but this ideal is presently untenable due to the lack of an unbiased 3D imaging method that allows histopathological assessment of any cell type despite optical opacity. Histopathology, the current clinical standard for diagnostic phenotyping, involves the microscopic study of tissue sections to assess qualitative aspects of tissue architecture, disease mechanisms, and physiological state. However, quantitative features of tissue architecture such as cellular composition and cell counting in tissue volumes can only be approximated due to characteristics of tissue sectioning, including incomplete sampling and the constraints of 2D imaging of 5 micron thick tissue slabs. We have used a small, vertebrate organism, the zebrafish, to test the potential of microCT for systematic macroscopic and microscopic morphological phenotyping. While cell resolution is routinely achieved using methods such as light sheet fluorescence microscopy and optical tomography, these methods do not provide the pancellular perspective characteristic of histology, and are constrained by the limited penetration of visible light through pigmented and opaque specimens, as characterizes zebrafish juveniles. Here, we provide an example of neuroanatomy that can be studied by microCT of stained soft tissue at 1.43 micron isotropic voxel resolution. We conclude that synchrotron microCT is a form of 3D imaging that may potentially be adopted towards more reproducible, large-scale, morphological phenotyping of optically opaque tissues. Further development of soft tissue microCT, visualization and quantitative tools will enhance its utility.
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Affiliation(s)
- Xuying Xin
- Department of Pathology, Penn State College of Medicine, Hershey, PA 17033, USA.,Jake Gittlen Laboratories for Cancer Research, Hershey, PA 17033, USA.,Penn State Consortium for Interdisciplinary Image Informatics and Visualization, USA
| | - Darin Clark
- Center for In Vivo Microscopy, Department of Radiology, Duke University Medical Center, Durham, NC 27708, USA
| | - Khai Chung Ang
- Department of Pathology, Penn State College of Medicine, Hershey, PA 17033, USA.,Jake Gittlen Laboratories for Cancer Research, Hershey, PA 17033, USA.,Penn State Consortium for Interdisciplinary Image Informatics and Visualization, USA
| | - Damian B van Rossum
- Department of Pathology, Penn State College of Medicine, Hershey, PA 17033, USA.,Jake Gittlen Laboratories for Cancer Research, Hershey, PA 17033, USA.,Penn State Consortium for Interdisciplinary Image Informatics and Visualization, USA
| | - Jean Copper
- Department of Pathology, Penn State College of Medicine, Hershey, PA 17033, USA.,Jake Gittlen Laboratories for Cancer Research, Hershey, PA 17033, USA.,Penn State Consortium for Interdisciplinary Image Informatics and Visualization, USA
| | - Xianghui Xiao
- Advanced Photon Source, Argonne National Laboratory Argonne, IL 60439, USA
| | | | - Keith C Cheng
- Department of Pathology, Penn State College of Medicine, Hershey, PA 17033, USA.,Jake Gittlen Laboratories for Cancer Research, Hershey, PA 17033, USA.,Penn State Consortium for Interdisciplinary Image Informatics and Visualization, USA
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Tsetskhladze Z, Canfield VA, Copper J, Johnson SL, Kawakami K, Cheng KC. Functional validation of human pigmentation SNPs in zebrafish. FASEB J 2012. [DOI: 10.1096/fasebj.26.1_supplement.774.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Zurab Tsetskhladze
- Experimental Pathology and Jake Gittlen Cancer Research FoundationPennState College of MedicineHersheyPA
| | | | - Jean Copper
- Experimental Pathology and Jake Gittlen Cancer Research FoundationPennState College of MedicineHersheyPA
| | - Stephen L. Johnson
- Department of GeneticsWashington University School of MedicineSt. LouisMO
| | - Koichi Kawakami
- Division of Molecular and Developmental BiologyNational Institute of GeneticsMishimaJapan
| | - Keith C. Cheng
- Experimental Pathology and Jake Gittlen Cancer Research FoundationPennState College of MedicineHersheyPA
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Cheng KC, Clark DP, Thomas GK, Canada B, Peckins S, Cheng AM, Barno E, Copper J, Tatiparthi A, Sledz T, Canfield V, Xiao X, deCarlo F, La Riviere P, Liu Y, Wang JZ, Amsterdam A, Hopkins N. Morphogenetic Profiles in Micron Length Scales for Genetics and Systems Biology. FASEB J 2010. [DOI: 10.1096/fasebj.24.1_supplement.354.12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | | | | | - Brian Canada
- Graduate Program in Bioinformatics & GenomicsPennsylvania State UniversityHersheyPA
| | | | | | | | | | | | | | | | - Xianghui Xiao
- Advanced Photon Source, Argonne National LabsArgonneIL
| | | | | | | | - James Z Wang
- Information Science &TechnologyPennsylvania State UniversityUniversity ParkPA
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Abstract
Three regions within the 5'-flanking region of the TSH beta gene have A-T-rich sequences which have sequence similarity to binding sites for the pituitary-specific POU domain transcription factor Pit-1/GHF-1. These three regions have been termed TSH A (-274 to -258 bp), TSH B (-336 to -326 bp), and TSH C (-402 to -384 bp). TSH A and TSH C are able to confer 2-6-fold TRH stimulation to the heterologous viral thymidine kinase (tk) promoter in transient expression assays in GH3 pituitary cells; TSH C can confer a 3-10-fold increase in basal enhancer activity as well. TSH A, B, and C DNAs all bound Pit-1 from GH3 cell nuclear extracts, based on gel mobility shift analysis in which antibody against Pit-1 prevented the formation of specific DNA-GH3 nuclear protein complexes. TSH A and TSH C also each formed several additional DNA-nuclear protein complexes which were not observed with TSH B. Some of these complexes may contain Pit-1 as their formation was inhibited by the addition of Pit-1 antibody; other complexes, however, were not altered by antibody treatment. All three A-T-rich elements bound in vitro translated Pit-1, with calculated affinities of 360 (A), 125 (B), and 38 (C) nM, respectively.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- M E Mason
- Department of Medicine, University of Virginia Medical Center, Charlottesville 22903
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