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Jacobs K, Docter D, de Smit L, Korfage HAM, Visser SC, Lobbezoo F, Hlushchuk R, de Bakker BS. High resolution imaging of human development: shedding light on contrast agents. Neuroradiology 2024; 66:1481-1493. [PMID: 38995394 PMCID: PMC11322402 DOI: 10.1007/s00234-024-03413-z] [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: 03/01/2024] [Accepted: 06/21/2024] [Indexed: 07/13/2024]
Abstract
BACKGROUND Visualizing (micro)vascular structures remains challenging for researchers and clinicians due to limitations in traditional radiological imaging methods. Exploring the role of vascular development in craniofacial malformations in experimental settings can enhance understanding of these processes, with the effectiveness of high-resolution imaging techniques being crucial for successful research in this field. Micro-CT imaging offers 3D microstructural insights, but requires contrast-enhancing staining agents (CESAs) for visualizing (micro)-vascular tissues, known as contrast-enhanced micro-CT (CECT). As effective contrast agents are crucial for optimal visualization, this review focuses on comparative studies investigating such agents for micro-vascular tissue imaging using micro-CT. Furthermore, we demonstrate the utilization of B-Lugol solution as a promising contrast agent for acquiring high-quality micro-CT images of (micro)vascular structures in human embryonic samples. METHOD This scoping review followed Preferred Reporting Items for Systematic Reviews and Meta-analysis Protocols. PubMed database provided relevant articles, screened initially by title and abstract. Inclusion and exclusion criteria defined outcomes of interest. RESULTS From an initial search, 273 records were identified, narrowed down to 9 articles after applying our criteria. Additionally, two articles were added through citation searching. This, a total of 11 articles were incorporated in this study. CONCLUSION This micro-CT contrast agent review underscores the need for tailored choices based on research goals. Both Barium sulfate and Iodine-based agents showing excellent results, providing high resolution (micro) vascular content, especially in ex-vivo specimens. However, careful consideration of protocols and tissue characteristics remains imperative for optimizing the effectiveness of micro-CT imaging for the study of cranio-facial vascular development.
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Affiliation(s)
- Karl Jacobs
- Department of Orofacial Pain and Disfunction, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and VU University Amsterdam, Amsterdam, The Netherlands.
- Department of Medical Biology, Section Clinical Anatomy & Embryology, Amsterdam UMC location AMC, University of Amsterdam, Meibergdreef 15, Amsterdam, The Netherlands.
- Amsterdam Reproduction and Development Research Institute, Meibergdreef 9, Amsterdam, The Netherlands.
| | - Daniel Docter
- Department of Medical Biology, Section Clinical Anatomy & Embryology, Amsterdam UMC location AMC, University of Amsterdam, Meibergdreef 15, Amsterdam, The Netherlands
| | - Lotte de Smit
- Department of Orofacial Pain and Disfunction, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and VU University Amsterdam, Amsterdam, The Netherlands
| | - Hans A M Korfage
- Department of Orofacial Pain and Disfunction, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and VU University Amsterdam, Amsterdam, The Netherlands
| | - Sophie C Visser
- Department of Medical Biology, Section Clinical Anatomy & Embryology, Amsterdam UMC location AMC, University of Amsterdam, Meibergdreef 15, Amsterdam, The Netherlands
| | - Frank Lobbezoo
- Department of Orofacial Pain and Disfunction, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and VU University Amsterdam, Amsterdam, The Netherlands
| | - Ruslan Hlushchuk
- Micro-CT Research Group, Institute of Anatomy, University of Bern, Baltzerstrasse 2, CH-3012, Bern, Switzerland
| | - Bernadette S de Bakker
- Amsterdam Reproduction and Development Research Institute, Meibergdreef 9, Amsterdam, The Netherlands
- Department of Obstetrics and Gynecology, Amsterdam UMC location AMC, University of Amsterdam, Amsterdam Reproduction & Development Research Institute, Meibergdreef 9, Amsterdam, The Netherlands
- Erasmus MC - Sophia Children's Hospital, University Medical Center Rotterdam, Department of Pediatric Surgery, Rotterdam, The Netherlands
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2
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Imenez Silva PH, Pepin M, Figurek A, Gutiérrez-Jiménez E, Bobot M, Iervolino A, Mattace-Raso F, Hoorn EJ, Bailey MA, Hénaut L, Nielsen R, Frische S, Trepiccione F, Hafez G, Altunkaynak HO, Endlich N, Unwin R, Capasso G, Pesic V, Massy Z, Wagner CA. Animal models to study cognitive impairment of chronic kidney disease. Am J Physiol Renal Physiol 2024; 326:F894-F916. [PMID: 38634137 DOI: 10.1152/ajprenal.00338.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 03/11/2024] [Accepted: 04/04/2024] [Indexed: 04/19/2024] Open
Abstract
Mild cognitive impairment (MCI) is common in people with chronic kidney disease (CKD), and its prevalence increases with progressive loss of kidney function. MCI is characterized by a decline in cognitive performance greater than expected for an individual age and education level but with minimal impairment of instrumental activities of daily living. Deterioration can affect one or several cognitive domains (attention, memory, executive functions, language, and perceptual motor or social cognition). Given the increasing prevalence of kidney disease, more and more people with CKD will also develop MCI causing an enormous disease burden for these individuals, their relatives, and society. However, the underlying pathomechanisms are poorly understood, and current therapies mostly aim at supporting patients in their daily lives. This illustrates the urgent need to elucidate the pathogenesis and potential therapeutic targets and test novel therapies in appropriate preclinical models. Here, we will outline the necessary criteria for experimental modeling of cognitive disorders in CKD. We discuss the use of mice, rats, and zebrafish as model systems and present valuable techniques through which kidney function and cognitive impairment can be assessed in this setting. Our objective is to enable researchers to overcome hurdles and accelerate preclinical research aimed at improving the therapy of people with CKD and MCI.
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Affiliation(s)
- Pedro H Imenez Silva
- Institute of Physiology, University of Zurich, Zurich, Switzerland
- Division of Nephrology and Transplantation, Department of Internal Medicine, Erasmus Medical Center, University Medical Center, Rotterdam, The Netherlands
| | - Marion Pepin
- Institut National de la Santé et de la Recherche Médicale U-1018 Centre de Recherche en Épidémiologie et Santé des Population, Équipe 5, Paris-Saclay University, Versailles Saint-Quentin-en-Yvelines University, Villejuif, France
- Department of Geriatrics, Centre Hospitalier Universitaire Ambroise Paré, Assistance Publique-Hôpitaux de Paris Université Paris-Saclay, Paris, France
| | - Andreja Figurek
- Institute of Anatomy, University of Zurich, Zurich, Switzerland
| | - Eugenio Gutiérrez-Jiménez
- Center for Functionally Integrative Neuroscience, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Mickaël Bobot
- Centre de Néphrologie et Transplantation Rénale, Hôpital de la Conception, Assistance Publique-Hopitaux de Marseille, and INSERM 1263, Institut National de la Recherche Agronomique 1260, C2VN, Aix-Marseille Universitaire, Marseille, France
| | - Anna Iervolino
- Department of Translational Medical Sciences, University of Campania 'Luigi Vanvitelli,' Naples, Italy
| | - Francesco Mattace-Raso
- Division of Geriatrics, Department of Internal Medicine, Erasmus MC University Medical Center, Rotterdam, The Netherlands
| | - Ewout J Hoorn
- Division of Nephrology and Transplantation, Department of Internal Medicine, Erasmus Medical Center, University Medical Center, Rotterdam, The Netherlands
| | - Matthew A Bailey
- Edinburgh Kidney, Centre for Cardiovascular Science, The University of Edinburgh, Edinburgh, United Kingdom
| | - Lucie Hénaut
- UR UPJV 7517, Jules Verne University of Picardie, Amiens, France
| | - Rikke Nielsen
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | | | - Francesco Trepiccione
- Department of Translational Medical Sciences, University of Campania 'Luigi Vanvitelli,' Naples, Italy
| | - Gaye Hafez
- Department of Pharmacology, Faculty of Pharmacy, Altinbas University, Istanbul, Turkey
| | - Hande O Altunkaynak
- Department of Pharmacology, Gulhane Faculty of Pharmacy, University of Health Sciences, Istanbul, Turkey
| | - Nicole Endlich
- Department of Anatomy and Cell Biology, University Medicine Greifswald, Greifswald, Germany
| | - Robert Unwin
- Department of Renal Medicine, Royal Free Hospital, University College London, London, United Kingdom
| | - Giovambattista Capasso
- Department of Translational Medical Sciences, University of Campania 'Luigi Vanvitelli,' Naples, Italy
- Biogem Research Institute, Ariano Irpino, Italy
| | - Vesna Pesic
- Department of Physiology, Faculty of Pharmacy, University of Belgrade, Belgrade, Serbia
| | - Ziad Massy
- Centre for Research in Epidemiology and Population Health, INSERM UMRS 1018, Clinical Epidemiology Team, University Paris-Saclay, University Versailles-Saint Quentin, Villejuif, France
- Department of Nephrology, Centre Hospitalier Universitaire Ambroise Paré, Assistance Publique-Hôpitaux de Paris Université Paris-Saclay, Paris, France
| | - Carsten A Wagner
- Institute of Physiology, University of Zurich, Zurich, Switzerland
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Choi G, Choi B, Darmawan BA, Jeong S, Jo J, Choi E, Kim H. Radiopaque, Self-Immolative Poly(benzyl ether) as a Functional X-ray Contrast Agent: Synthesis, Prolonged Visibility, and Controlled Degradation. Biomacromolecules 2024; 25:2740-2748. [PMID: 38563478 DOI: 10.1021/acs.biomac.3c01392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
A self-immolative radiocontrast polymer agent has been newly designed for this study. The polymer agent is composed of a degradable poly(benzyl ether)-based backbone that enables complete and spontaneous depolymerization upon exposure to a specific stimulus, with iodophenyl pendant groups that confer a radiodensity comparable to that of commercial agents. In particular, when incorporated into a biodegradable polycaprolactone matrix, the agent not only reinforces the matrix and provides prolonged radiopacity without leaching but also governs the overall degradation kinetics of the composite under basic aqueous conditions, allowing for X-ray tracking and exhibiting a predictable degradation until the end of its lifespan. Our design would be advanced with various other components to produce synergistic functions and extended for applications in implantable biodegradable devices and theragnostic systems.
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Affiliation(s)
- Geunyoung Choi
- School of Polymer Science and Engineering, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Korea
| | - Byeongjun Choi
- School of Polymer Science and Engineering, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Korea
| | - Bobby Aditya Darmawan
- Korea Institute of Medical Microrobotics (KIMIRo), 43-26, Cheomdangwagi-ro 208-beon-gil, Buk-gu, Gwangju 61011, Korea
| | - Songah Jeong
- School of Polymer Science and Engineering, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Korea
| | - Juyeong Jo
- Korea Institute of Medical Microrobotics (KIMIRo), 43-26, Cheomdangwagi-ro 208-beon-gil, Buk-gu, Gwangju 61011, Korea
| | - Eunpyo Choi
- School of Mechanical Engineering, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Korea
| | - Hyungwoo Kim
- School of Polymer Science and Engineering, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Korea
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Faivre A, Dissard R, Kuo W, Verissimo T, Legouis D, Arnoux G, Heckenmeyer C, Fernandez M, Tihy M, Rajaram RD, Delitsikou V, Le NA, Spingler B, Mueller B, Shulz G, Lindenmeyer M, Cohen C, Rutkowski JM, Moll S, Scholz CC, Kurtcuoglu V, de Seigneux S. Evolution of hypoxia and hypoxia-inducible factor asparaginyl hydroxylase regulation in chronic kidney disease. Nephrol Dial Transplant 2023; 38:2276-2288. [PMID: 37096392 PMCID: PMC10539236 DOI: 10.1093/ndt/gfad075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Indexed: 04/26/2023] Open
Abstract
BACKGROUND The roles of hypoxia and hypoxia inducible factor (HIF) during chronic kidney disease (CKD) are much debated. Interventional studies with HIF-α activation in rodents have yielded contradictory results. The HIF pathway is regulated by prolyl and asparaginyl hydroxylases. While prolyl hydroxylase inhibition is a well-known method to stabilize HIF-α, little is known about the effect asparaginyl hydroxylase factor inhibiting HIF (FIH). METHODS We used a model of progressive proteinuric CKD and a model of obstructive nephropathy with unilateral fibrosis. In these models we assessed hypoxia with pimonidazole and vascularization with three-dimensional micro-computed tomography imaging. We analysed a database of 217 CKD biopsies from stage 1 to 5 and we randomly collected 15 CKD biopsies of various severity degrees to assess FIH expression. Finally, we modulated FIH activity in vitro and in vivo using a pharmacologic approach to assess its relevance in CKD. RESULTS In our model of proteinuric CKD, we show that early CKD stages are not characterized by hypoxia or HIF activation. At late CKD stages, some areas of hypoxia are observed, but these are not colocalizing with fibrosis. In mice and in humans, we observed a downregulation of the HIF pathway, together with an increased FIH expression in CKD, according to its severity. Modulating FIH in vitro affects cellular metabolism, as described previously. In vivo, pharmacologic FIH inhibition increases the glomerular filtration rate of control and CKD animals and is associated with decreased development of fibrosis. CONCLUSIONS The causative role of hypoxia and HIF activation in CKD progression is questioned. A pharmacological approach of FIH downregulation seems promising in proteinuric kidney disease.
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Affiliation(s)
- Anna Faivre
- Department of Medicine and Cell physiology and Metabolism, University of Geneva, Geneva, Switzerland
- Service of Nephrology, Department of Medicine, Geneva University Hospitals, Geneva, Switzerland
| | - Romain Dissard
- Department of Medicine and Cell physiology and Metabolism, University of Geneva, Geneva, Switzerland
| | - Willy Kuo
- Institute of Physiology, University of Zurich, Zurich, Switzerland
- National Centre of Competence in Research, Kidney. CH, University of Zurich, Zurich, Switzerland
| | - Thomas Verissimo
- Department of Medicine and Cell physiology and Metabolism, University of Geneva, Geneva, Switzerland
| | - David Legouis
- Department of Medicine and Cell physiology and Metabolism, University of Geneva, Geneva, Switzerland
- Division of Intensive Care, Department of Acute Medicine, Geneva University Hospitals, Geneva, Switzerland
| | - Grégoire Arnoux
- Department of Medicine and Cell physiology and Metabolism, University of Geneva, Geneva, Switzerland
- Service of Clinical Pathology, Department of Pathology and Immunology, University Hospitals and University of Geneva, Geneva, Switzerland
| | - Carolyn Heckenmeyer
- Department of Medicine and Cell physiology and Metabolism, University of Geneva, Geneva, Switzerland
| | - Marylise Fernandez
- Department of Medicine and Cell physiology and Metabolism, University of Geneva, Geneva, Switzerland
| | - Matthieu Tihy
- Service of Clinical Pathology, Department of Pathology and Immunology, University Hospitals and University of Geneva, Geneva, Switzerland
| | - Renuga D Rajaram
- Department of Medicine and Cell physiology and Metabolism, University of Geneva, Geneva, Switzerland
| | - Vasiliki Delitsikou
- Department of Medicine and Cell physiology and Metabolism, University of Geneva, Geneva, Switzerland
| | - Ngoc An Le
- Department of Chemistry, University of Zurich, Zurich, Switzerland
| | | | - Bert Mueller
- Biomaterials Science Center, Department of Biomedical Engineering, University of Basel, Allschwil, Switzerland
| | - Georg Shulz
- Biomaterials Science Center, Department of Biomedical Engineering, University of Basel, Allschwil, Switzerland
- Micro- and Nanotomography Core Facility, Department of Biomedical Engineering, University of Basel, Allschwil, Switzerland
| | - Maja Lindenmeyer
- III Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Clemens Cohen
- Nephrological Center, Medical Clinic and Polyclinic IV, University of Munich, Munich, Germany
| | - Joseph M Rutkowski
- Department of Medical Physiology, Texas A&M University Health Science Center, Bryan, TX, USA
| | - Solange Moll
- Service of Clinical Pathology, Department of Pathology and Immunology, University Hospitals and University of Geneva, Geneva, Switzerland
| | - Carsten C Scholz
- Institute of Physiology, University of Zurich, Zurich, Switzerland
- National Centre of Competence in Research, Kidney. CH, University of Zurich, Zurich, Switzerland
- Institute of Physiology, University Medicine Greifswald, Greifswald, Germany
| | - Vartan Kurtcuoglu
- Institute of Physiology, University of Zurich, Zurich, Switzerland
- National Centre of Competence in Research, Kidney. CH, University of Zurich, Zurich, Switzerland
| | - Sophie de Seigneux
- Department of Medicine and Cell physiology and Metabolism, University of Geneva, Geneva, Switzerland
- Service of Nephrology, Department of Medicine, Geneva University Hospitals, Geneva, Switzerland
- National Centre of Competence in Research, Kidney. CH, University of Zurich, Zurich, Switzerland
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5
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Neffeová K, Olejníčková V, Naňka O, Kolesová H. Development and diseases of the coronary microvasculature and its communication with the myocardium. WIREs Mech Dis 2022; 14:e1560. [DOI: 10.1002/wsbm.1560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 04/12/2022] [Accepted: 04/27/2022] [Indexed: 11/11/2022]
Affiliation(s)
- Kristýna Neffeová
- Institute of Anatomy, First Faculty of Medicine Charles University Prague Czech Republic
| | - Veronika Olejníčková
- Institute of Anatomy, First Faculty of Medicine Charles University Prague Czech Republic
- Institute of Physiology Czech Academy of Science Prague Czech Republic
| | - Ondřej Naňka
- Institute of Anatomy, First Faculty of Medicine Charles University Prague Czech Republic
| | - Hana Kolesová
- Institute of Anatomy, First Faculty of Medicine Charles University Prague Czech Republic
- Institute of Physiology Czech Academy of Science Prague Czech Republic
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Zhang Q, Wu Z, Song J, Zhang B, Duan Q, Song D, Hu L, Li S, Sang S. MRI/fluorescence dual-mode probe: its simple preparation method and imaging application in vitro. BIOMEDICAL OPTICS EXPRESS 2022; 13:3493-3502. [PMID: 35781975 PMCID: PMC9208581 DOI: 10.1364/boe.455679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 04/06/2022] [Accepted: 05/08/2022] [Indexed: 06/15/2023]
Abstract
Superparamagnetic nanoparticles have been widely used as contrast agents in magnetic resonance imaging (MRI). The combined use of multiple imaging modes can provide more accurate information for clinical diagnosis. In this paper, a MRI/fluorescence dual-mode imaging contrast agent was developed by a simple method. The method is to make the fluorescent carbon quantum dots (CDs) adsorbed on the surface of the magnetic composite with pore structure by ultrasonic dispersion. Replacing the traditional methods such as chemical bonding, the fluorescent material is coated on the surface of the composite material. The synthesized composite materials were characterized by the transmission electron microscopy method (TEM), Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), and vibration sample magnetometer (VSM). The results of TEM, FTIR and XPS showed that CDs were successfully coated on the surface of C60@Fe3O4 magnetic composite. The VSM results show that the composite material still maintains superparamagnetism. The cytotoxicity of the material on SMMC-7721 liver cancer cells was detected by the MTT method, and the biocompatibility of the material was verified. By observing the fluorescence distribution in the cell, it is proved that the composite material successfully enters the cell and produces fluorescence. Finally, through the analysis of T2-weighted imaging, it is found that the addition of materials results in an enhanced dark contrast compared to control cells. Therefore, the composite nanomaterials synthesized in this paper can be used as MRI/fluorescence dual-mode imaging contrast agents.
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Affiliation(s)
- Qiang Zhang
- Department of Nuclear Medicine, First Hospital of Shanxi Medical University, Taiyuan 030051, China
- Shanxi Key Laboratory of Micro Nano Sensors & Artificial Intelligence Perception, College of Information and Computer, Taiyuan University of Technology, Taiyuan 030024, China
- Molecular Imaging Precision Medical Collaborative Innovation Center, Shanxi Medical University, Taiyuan 30051, China
- These authors contribute equally to this work
| | - Zhifang Wu
- Department of Nuclear Medicine, First Hospital of Shanxi Medical University, Taiyuan 030051, China
- Molecular Imaging Precision Medical Collaborative Innovation Center, Shanxi Medical University, Taiyuan 30051, China
- These authors contribute equally to this work
| | - Jianqiao Song
- Shanxi Key Laboratory of Micro Nano Sensors & Artificial Intelligence Perception, College of Information and Computer, Taiyuan University of Technology, Taiyuan 030024, China
| | - Boye Zhang
- Shanxi Key Laboratory of Micro Nano Sensors & Artificial Intelligence Perception, College of Information and Computer, Taiyuan University of Technology, Taiyuan 030024, China
| | - Qianqian Duan
- Shanxi Key Laboratory of Micro Nano Sensors & Artificial Intelligence Perception, College of Information and Computer, Taiyuan University of Technology, Taiyuan 030024, China
| | - Darui Song
- Department of Nuclear Medicine, First Hospital of Shanxi Medical University, Taiyuan 030051, China
- Molecular Imaging Precision Medical Collaborative Innovation Center, Shanxi Medical University, Taiyuan 30051, China
| | - Linjun Hu
- Department of Nuclear Medicine, First Hospital of Shanxi Medical University, Taiyuan 030051, China
- Molecular Imaging Precision Medical Collaborative Innovation Center, Shanxi Medical University, Taiyuan 30051, China
| | - Sijin Li
- Department of Nuclear Medicine, First Hospital of Shanxi Medical University, Taiyuan 030051, China
- Molecular Imaging Precision Medical Collaborative Innovation Center, Shanxi Medical University, Taiyuan 30051, China
| | - Shengbo Sang
- Shanxi Key Laboratory of Micro Nano Sensors & Artificial Intelligence Perception, College of Information and Computer, Taiyuan University of Technology, Taiyuan 030024, China
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James JL, Tongpob Y, Srinivasan V, Crew RC, Bappoo N, Doyle B, Gerneke D, Clark AR, Wyrwoll CS. Three-dimensional visualisation of the feto-placental vasculature in humans and rodents. Placenta 2021; 114:8-13. [PMID: 34418753 DOI: 10.1016/j.placenta.2021.08.049] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 08/09/2021] [Accepted: 08/12/2021] [Indexed: 11/19/2022]
Abstract
Adequate development of the feto-placental circulation is critical for placental exchange function and healthy fetal growth. Understanding the structure of this circulation and how it informs fetal outcomes is important both in the human placenta, and the rodent, a purported comparative experimental model. Vascular casting and micro-CT imaging approaches enable detailed quantification of the complex vascular relationships in the feto-circulation, and provide detailed data to parameterise in silico models. Here, to assist researchers to apply these technically challenging methods we provide detailed approaches to cast and image; 1) human placentas at the cotyledon-level, and 2) whole rodent placentas.
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Affiliation(s)
- J L James
- Department of Obstetrics and Gynaecology, Faculty of Medical and Health Sciences, University of Auckland, New Zealand
| | - Y Tongpob
- School of Human Sciences, The University of Western Australia, Perth, WA, Australia; Faculty of Medical Science, Naresuan University, Phitsanulok, Thailand
| | - V Srinivasan
- Auckland Bioengineering Institute, University of Auckland, New Zealand
| | - R C Crew
- School of Human Sciences, The University of Western Australia, Perth, WA, Australia
| | - N Bappoo
- School of Human Sciences, The University of Western Australia, Perth, WA, Australia; Vascular Engineering Laboratory, Harry Perkins Institute of Medical Research, QEII Medical Centre and the UWA Centre for Medical Research, The University of Western Australia, WA, Australia; School of Engineering, The University of Western Australia, Perth, WA, 6009, Australia
| | - B Doyle
- Vascular Engineering Laboratory, Harry Perkins Institute of Medical Research, QEII Medical Centre and the UWA Centre for Medical Research, The University of Western Australia, WA, Australia; School of Engineering, The University of Western Australia, Perth, WA, 6009, Australia; Australian Research Council Centre for Personalised Therapeutics Technologies, Australia; Centre for Cardiovascular Science, The University of Edinburgh, UK
| | - D Gerneke
- Auckland Bioengineering Institute, University of Auckland, New Zealand
| | - A R Clark
- Auckland Bioengineering Institute, University of Auckland, New Zealand
| | - C S Wyrwoll
- School of Human Sciences, The University of Western Australia, Perth, WA, Australia.
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8
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Kolesová H, Olejníčková V, Kvasilová A, Gregorovičová M, Sedmera D. Tissue clearing and imaging methods for cardiovascular development. iScience 2021; 24:102387. [PMID: 33981974 PMCID: PMC8086021 DOI: 10.1016/j.isci.2021.102387] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Tissue imaging in 3D using visible light is limited and various clearing techniques were developed to increase imaging depth, but none provides universal solution for all tissues at all developmental stages. In this review, we focus on different tissue clearing methods for 3D imaging of heart and vasculature, based on chemical composition (solvent-based, simple immersion, hyperhydration, and hydrogel embedding techniques). We discuss in detail compatibility of various tissue clearing techniques with visualization methods: fluorescence preservation, immunohistochemistry, nuclear staining, and fluorescent dyes vascular perfusion. We also discuss myocardium visualization using autofluorescence, tissue shrinking, and expansion. Then we overview imaging methods used to study cardiovascular system and live imaging. We discuss heart and vessels segmentation methods and image analysis. The review covers the whole process of cardiovascular system 3D imaging, starting from tissue clearing and its compatibility with various visualization methods to the types of imaging methods and resulting image analysis.
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Affiliation(s)
- Hana Kolesová
- Institute of Anatomy, First Faculty of Medicine, Charles University, Prague, Czech Republic
- Institute of Physiology, Czech Academy of Science, Prague, Czech Republic
| | - Veronika Olejníčková
- Institute of Anatomy, First Faculty of Medicine, Charles University, Prague, Czech Republic
- Institute of Physiology, Czech Academy of Science, Prague, Czech Republic
| | - Alena Kvasilová
- Institute of Anatomy, First Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Martina Gregorovičová
- Institute of Anatomy, First Faculty of Medicine, Charles University, Prague, Czech Republic
- Institute of Physiology, Czech Academy of Science, Prague, Czech Republic
| | - David Sedmera
- Institute of Anatomy, First Faculty of Medicine, Charles University, Prague, Czech Republic
- Institute of Physiology, Czech Academy of Science, Prague, Czech Republic
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9
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Kuo W, Le NA, Spingler B, Wenger RH, Kipar A, Hetzel U, Schulz G, Müller B, Kurtcuoglu V. Simultaneous Three-Dimensional Vascular and Tubular Imaging of Whole Mouse Kidneys With X-ray μCT. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2020; 26:731-740. [PMID: 32627730 DOI: 10.1017/s1431927620001725] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Concurrent three-dimensional imaging of the renal vascular and tubular systems on the whole-kidney scale with capillary level resolution is labor-intensive and technically difficult. Approaches based on vascular corrosion casting and X-ray micro computed tomography (μCT), for example, suffer from vascular filling artifacts and necessitate imaging with an additional modality to acquire tubules. In this work, we report on a new sample preparation, image acquisition, and quantification protocol for simultaneous vascular and tubular μCT imaging of whole, uncorroded mouse kidneys. The protocol consists of vascular perfusion with the water-soluble, aldehyde-fixable, polymeric X-ray contrast agent XlinCA, followed by laboratory-source μCT imaging and structural analysis using the freely available Fiji/ImageJ software. We achieved consistent filling of the entire capillary bed and staining of the tubules in the cortex and outer medulla. After imaging at isotropic voxel sizes of 3.3 and 4.4 μm, we segmented vascular and tubular systems and quantified luminal volumes, surface areas, diffusion distances, and vessel path lengths. This protocol permits the analysis of vascular and tubular parameters with higher reliability than vascular corrosion casting, less labor than serial sectioning and leaves tissue intact for subsequent histological examination with light and electron microscopy.
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Affiliation(s)
- Willy Kuo
- University of Zurich, Institute of Physiology, Winterthurerstrasse 190, 8057Zurich, Switzerland
- University of Zurich, National Centre of Competence in Research, Kidney. CH, Winterthurerstrasse 190, 8057Zurich, Switzerland
- University of Basel, Biomaterials Science Center, Department of Biomedical Engineering, Gewerbestrasse 14, 4123Allschwil, Switzerland
| | - Ngoc An Le
- University of Zurich, Department of Chemistry, Winterthurerstrasse 190, 8057Zurich, Switzerland
| | - Bernhard Spingler
- University of Zurich, Department of Chemistry, Winterthurerstrasse 190, 8057Zurich, Switzerland
| | - Roland H Wenger
- University of Zurich, Institute of Physiology, Winterthurerstrasse 190, 8057Zurich, Switzerland
- University of Zurich, National Centre of Competence in Research, Kidney. CH, Winterthurerstrasse 190, 8057Zurich, Switzerland
| | - Anja Kipar
- University of Zurich, Laboratory for Animal Model Pathology (LAMP), Institute of Veterinary Pathology, Vetsuisse Faculty, Winterthurerstrasse 268, 8057Zurich, Switzerland
| | - Udo Hetzel
- University of Zurich, Electron Microscopy Unit, Institute of Veterinary Pathology, Vetsuisse Faculty, Winterthurerstrasse 268, 8057Zurich, Switzerland
| | - Georg Schulz
- University of Basel, Biomaterials Science Center, Department of Biomedical Engineering, Gewerbestrasse 14, 4123Allschwil, Switzerland
| | - Bert Müller
- University of Basel, Biomaterials Science Center, Department of Biomedical Engineering, Gewerbestrasse 14, 4123Allschwil, Switzerland
| | - Vartan Kurtcuoglu
- University of Zurich, Institute of Physiology, Winterthurerstrasse 190, 8057Zurich, Switzerland
- University of Zurich, National Centre of Competence in Research, Kidney. CH, Winterthurerstrasse 190, 8057Zurich, Switzerland
- University of Zurich, Zurich Center for Integrative Human Physiology, 8057Zurich, Switzerland
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