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Linkova N, Diatlova A, Zinchenko Y, Kornilova A, Snetkov P, Morozkina S, Medvedev D, Krasichkov A, Polyakova V, Yablonskiy P. Pulmonary Sarcoidosis: Experimental Models and Perspectives of Molecular Diagnostics Using Quantum Dots. Int J Mol Sci 2023; 24:11267. [PMID: 37511027 PMCID: PMC10379333 DOI: 10.3390/ijms241411267] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Revised: 07/05/2023] [Accepted: 07/07/2023] [Indexed: 07/30/2023] Open
Abstract
Sarcoidosis is a complex inflammatory multisystem disease of unknown etiology that is characterised by epithelioid cell granulomatous lesions affecting various organs, mainly the lungs. In general, sarcoidosis is asymptomatic, but some cases result in severe complications and organ failure. So far, no accurate and validated modelling for clinical and pathohistological manifestations of sarcoidosis is suggested. Moreover, knowledge about disease-specific diagnostic markers for sarcoidosis is scarce. For instance, pulmonary granulomatosis is associated with the upregulated production of proinflammatory molecules: TNF-α, IL-6, CXCL1, CCL2, CCL18, CD163, serum angiotensin-converting enzyme (sACE), lysozyme, neopterin, and serum amyloid A (SAA). Quantum dots (QDs) are widely applied for molecular diagnostics of various diseases. QDs are semiconductor nanoparticles of a few nanometres in size, made from ZnS, CdS, ZnSe, etc., with unique physical and chemical properties that are useful for the labelling and detection in biological experiments. QDs can conjugate with various antibodies or oligonucleotides, allowing for high-sensitivity detection of various targets in organs and cells. Our review describes existing experimental models for sarcoidosis (in vitro, in vivo, and in silico), their advantages and restrictions, as well as the physical properties of quantum dots and their potential applications in the molecular diagnostics of sarcoidosis. The most promising experimental models include mice with TSC2 deletion and an in silico multiscale computational model of sarcoidosis (SarcoidSim), developed using transcriptomics and flow cytometry of human sarcoid biopsies. Both models are most efficient to test different candidate drugs for sarcoidosis.
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Affiliation(s)
- Natalia Linkova
- St. Petersburg Research Institute of Phthisiopulmonology, Ligovskii Prospect, 2-4, 191036 Saint Petersburg, Russia
- St. Petersburg Institute of Bioregulation and Gerontology, Dynamo pr., 3, 197110 Saint Petersburg, Russia
| | - Anastasiia Diatlova
- St. Petersburg Research Institute of Phthisiopulmonology, Ligovskii Prospect, 2-4, 191036 Saint Petersburg, Russia
| | - Yulia Zinchenko
- St. Petersburg Research Institute of Phthisiopulmonology, Ligovskii Prospect, 2-4, 191036 Saint Petersburg, Russia
| | - Anastasiia Kornilova
- St. Petersburg Research Institute of Phthisiopulmonology, Ligovskii Prospect, 2-4, 191036 Saint Petersburg, Russia
| | - Petr Snetkov
- St. Petersburg Research Institute of Phthisiopulmonology, Ligovskii Prospect, 2-4, 191036 Saint Petersburg, Russia
- Chemical Bioengineering Center, ITMO University, Kronverksky Pr, 49A, 197101 Saint Petersburg, Russia
| | - Svetlana Morozkina
- St. Petersburg Research Institute of Phthisiopulmonology, Ligovskii Prospect, 2-4, 191036 Saint Petersburg, Russia
- Chemical Bioengineering Center, ITMO University, Kronverksky Pr, 49A, 197101 Saint Petersburg, Russia
| | - Dmitrii Medvedev
- St. Petersburg Institute of Bioregulation and Gerontology, Dynamo pr., 3, 197110 Saint Petersburg, Russia
| | - Alexandr Krasichkov
- Department of Radio Engineering Systems, Electrotechnical University "LETI", Prof. Popova Street 5F, 197022 Saint Petersburg, Russia
| | - Victoria Polyakova
- St. Petersburg Research Institute of Phthisiopulmonology, Ligovskii Prospect, 2-4, 191036 Saint Petersburg, Russia
| | - Piotr Yablonskiy
- St. Petersburg Research Institute of Phthisiopulmonology, Ligovskii Prospect, 2-4, 191036 Saint Petersburg, Russia
- Department of Hospital Surgery of the Faculty of Medicine, St. Petersburg State University, University Embankment, 7-9, 199034 Saint Petersburg, Russia
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Elucidation of the control mechanism of dynamic tissues using freezing techniques. Anat Sci Int 2022; 97:165-169. [PMID: 35038144 DOI: 10.1007/s12565-022-00648-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Accepted: 01/05/2022] [Indexed: 11/01/2022]
Abstract
The preparation of histological specimens from animals and humans is a multi-step process comprising tissue collection, fixation, and dehydration, followed by paraffin embedding. Each process can be achieved using different methods and substances. For example, dehydration may not be required depending on the substance used for embedding. The freezing technique described in the present study can be used for tissue collection and fixation. Tissues obtained using "in vivo cryotechnique (IVCT)" reflect blood flow and protein localization in body fluids at the time of tissue collection, making it an indispensable method in histological analyses of the future. This study utilized the IVCT to capture histological images of dynamic objects from multiple viewpoints and elucidate the mechanism underlying their movement control at the molecular level.
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Ren L, Wang L, Rehberg M, Stoeger T, Zhang J, Chen S. Applications and Immunological Effects of Quantum Dots on Respiratory System. Front Immunol 2022; 12:795232. [PMID: 35069577 PMCID: PMC8770806 DOI: 10.3389/fimmu.2021.795232] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 12/13/2021] [Indexed: 12/29/2022] Open
Abstract
Quantum dots (QDs), are one kind of nanoscale semiconductor crystals with specific electronic and optical properties, offering near-infrared mission and chemically active surfaces. Increasing interest for QDs exists in developing theranostics platforms for bioapplications such as imaging, drug delivery and therapy. Here we summarized QDs' biomedical applications, toxicity, and immunological effects on the respiratory system. Bioapplications of QDs in lung include biomedical imaging, drug delivery, bio-sensing or diagnosis and therapy. Generically, toxic effects of nanoparticles are related to the generation of oxidative stresses with subsequent DNA damage and decreased lung cells viability in vitro and in vivo because of release of toxic metal ions or the features of QDs like its surface charge. Lastly, pulmonary immunological effects of QDs mainly include proinflammatory cytokines release and recruiting innate leukocytes or adaptive T cells.
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Affiliation(s)
- Laibin Ren
- Institute of Respiratory Diseases, Shenzhen People’s Hospital, Jinan University, Shenzhen, China
- The First Affiliated Hospital, Southern University of Science and Technology, Shenzhen, China
| | - Lingwei Wang
- Institute of Respiratory Diseases, Shenzhen People’s Hospital, Jinan University, Shenzhen, China
- The First Affiliated Hospital, Southern University of Science and Technology, Shenzhen, China
| | - Markus Rehberg
- Comprehensive Pneumology Center, Institute of Lung Biology and Disease, Helmholtz Center Munich, German Research Center for Environmental Health, Neuherberg and Member of the German Center for Lung Research, Munich, Germany
| | - Tobias Stoeger
- Comprehensive Pneumology Center, Institute of Lung Biology and Disease, Helmholtz Center Munich, German Research Center for Environmental Health, Neuherberg and Member of the German Center for Lung Research, Munich, Germany
| | - Jianglin Zhang
- The First Affiliated Hospital, Southern University of Science and Technology, Shenzhen, China
- Department of Dermatology, Shenzhen People’s Hospital, Jinan University, Shenzhen, China
| | - Shanze Chen
- Institute of Respiratory Diseases, Shenzhen People’s Hospital, Jinan University, Shenzhen, China
- The First Affiliated Hospital, Southern University of Science and Technology, Shenzhen, China
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4
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Kanehira Y, Togami K, Ishizawa K, Sato S, Tada H, Chono S. Intratumoral delivery and therapeutic efficacy of nanoparticle-encapsulated anti-tumor siRNA following intrapulmonary administration for potential treatment of lung cancer. Pharm Dev Technol 2019; 24:1095-1103. [DOI: 10.1080/10837450.2019.1633345] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Yukimune Kanehira
- Division of Pharmaceutics, Hokkaido Pharmaceutical University School of Pharmacy, Sapporo, Japan
| | - Kohei Togami
- Division of Pharmaceutics, Hokkaido Pharmaceutical University School of Pharmacy, Sapporo, Japan
- Faculty of Pharmaceutical Sciences, Department of Pharmaceutics, Hokkaido University of Science, Sapporo, Japan
| | - Kiyomi Ishizawa
- Division of Pharmaceutics, Hokkaido Pharmaceutical University School of Pharmacy, Sapporo, Japan
- Faculty of Pharmaceutical Sciences, Department of Pharmaceutics, Hokkaido University of Science, Sapporo, Japan
| | - Shingo Sato
- Division of Pharmaceutics, Hokkaido Pharmaceutical University School of Pharmacy, Sapporo, Japan
| | - Hitoshi Tada
- Division of Pharmaceutics, Hokkaido Pharmaceutical University School of Pharmacy, Sapporo, Japan
- Faculty of Pharmaceutical Sciences, Department of Pharmaceutics, Hokkaido University of Science, Sapporo, Japan
| | - Sumio Chono
- Division of Pharmaceutics, Hokkaido Pharmaceutical University School of Pharmacy, Sapporo, Japan
- Faculty of Pharmaceutical Sciences, Department of Pharmaceutics, Hokkaido University of Science, Sapporo, Japan
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Shin YC, Song SJ, Lee YB, Kang MS, Lee HU, Oh JW, Han DW. Application of black phosphorus nanodots to live cell imaging. Biomater Res 2018; 22:31. [PMID: 30305920 PMCID: PMC6172722 DOI: 10.1186/s40824-018-0142-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 09/25/2018] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Black phosphorus (BP) has emerged as a novel class of nanomaterials owing to its unique optical and electronic properties. BP, a two-dimensional (2D) nanomaterial, is a structure where phosphorenes are stacked together in layers by van der Waals interactions. However, although BP nanodots have many advantages, their biosafety and biological effect have not yet been elucidated as compared to the other nanomaterials. Therefore, it is particularly important to assess the cytotoxicity of BP nanodots for exploring their potentials as novel biomaterials. METHODS BP nanodots were prepared by exfoliation with a modified ultrasonication-assisted solution method. The physicochemical properties of BP nanodots were characterized by transmission electron microscopy, dynamic light scattering, Raman spectroscopy, and X-ray diffractometry. In addition, the cytotoxicity of BP nanodots against C2C12 myoblasts was evaluated. Moreover, their cell imaging potential was investigated. RESULTS Herein, we concentrated on evaluating the cytotoxicity of BP nanodots and investigating their cell imaging potential. It was revealed that the BP nanodots were cytocompatible at a low concentration, although the cell viability was decreased with increasing BP nanodot concentration. Furthermore, our results demonstrated that the cells took up the BP nanodots, and the BP nanodots exhibited green fluorescence. CONCLUSIONS In conclusion, our findings suggest that the BP nanodots have suitable biocompatibility, and are promising candidates as fluorescence probes for biomedical imaging applications.
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Affiliation(s)
- Yong Cheol Shin
- Research Center for Energy Convergence Technology, Pusan National University, Busan, 46241 Republic of Korea
| | - Su-Jin Song
- Department of Cogno-Mechatronics Engineering, College of Nanoscience & Nanotechnology, Pusan National University, Busan, 46241 Republic of Korea
| | - Yu Bin Lee
- Department of Cogno-Mechatronics Engineering, College of Nanoscience & Nanotechnology, Pusan National University, Busan, 46241 Republic of Korea
| | - Moon Sung Kang
- Department of Cogno-Mechatronics Engineering, College of Nanoscience & Nanotechnology, Pusan National University, Busan, 46241 Republic of Korea
| | - Hyun Uk Lee
- Advanced Nano-Surface Research Group, Korea Basic Science Institute (KBSI), Daejeon, 34133 Republic of Korea
| | - Jin-Woo Oh
- Department of Nanofusion Technology, College of Nanoscience & Nanotechnology, Pusan National University, Busan, 46241 Republic of Korea
| | - Dong-Wook Han
- Department of Cogno-Mechatronics Engineering, College of Nanoscience & Nanotechnology, Pusan National University, Busan, 46241 Republic of Korea
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Indoxyl Sulfate as a Mediator Involved in Dysregulation of Pulmonary Aquaporin-5 in Acute Lung Injury Caused by Acute Kidney Injury. Int J Mol Sci 2016; 18:ijms18010011. [PMID: 28025487 PMCID: PMC5297646 DOI: 10.3390/ijms18010011] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Revised: 12/10/2016] [Accepted: 12/12/2016] [Indexed: 01/11/2023] Open
Abstract
High mortality of acute kidney injury (AKI) is associated with acute lung injury (ALI), which is a typical complication of AKI. Although it is suggested that dysregulation of lung salt and water channels following AKI plays a pivotal role in ALI, the mechanism of its dysregulation has not been elucidated. Here, we examined the involvement of a typical oxidative stress-inducing uremic toxin, indoxyl sulfate (IS), in the dysregulation of the pulmonary predominant water channel, aquaporin 5 (AQP-5), in bilateral nephrectomy (BNx)-induced AKI model rats. BNx evoked AKI with the increases in serum creatinine (SCr), blood urea nitrogen (BUN) and serum IS levels and exhibited thickening of interstitial tissue in the lung. Administration of AST-120, clinically-used oral spherical adsorptive carbon beads, resulted in a significant decrease in serum IS level and thickening of interstitial tissue, which was accompanied with the decreases in IS accumulation in various tissues, especially lung. Interestingly, a significant decrease in AQP-5 expression of lung was observed in BNx rats. Moreover, the BNx-induced decrease in pulmonary AQP-5 protein expression was markedly restored by oral administration of AST-120. These results suggest that BNx-induced AKI causes dysregulation of pulmonary AQP-5 expression, in which IS could play a toxico-physiological role as a mediator involved in renopulmonary crosstalk.
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Ohno S, Saitoh Y, Ohno N, Terada N. Renaissance of morphological studies: the examination of functional structures in living animal organs using the in vivo cryotechnique. Anat Sci Int 2016; 92:55-78. [DOI: 10.1007/s12565-016-0355-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Accepted: 06/27/2016] [Indexed: 11/28/2022]
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Kanehira Y, Togami K, Tada H, Chono S. Tumor distribution and anti-tumor effect of doxorubicin following intrapulmonary administration to mice with metastatic lung tumor. J Drug Deliv Sci Technol 2016. [DOI: 10.1016/j.jddst.2016.04.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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9
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Togami K, Chono S, Tada H. Alteration in Intrapulmonary Pharmacokinetics of Aerosolized Model Compounds Due to Disruption of the Alveolar Epithelial Barriers Following Bleomycin-Induced Pulmonary Fibrosis in Rats. J Pharm Sci 2016; 105:1327-34. [DOI: 10.1016/j.xphs.2015.12.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Revised: 12/06/2015] [Accepted: 12/09/2015] [Indexed: 12/17/2022]
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Ohno S. Morphofunctional Merits of an In Vivo Cryotechnique for Living Animal Organs: Challenges of Clinical Applications from Basic Medical Research. Acta Histochem Cytochem 2016; 49:1-6. [PMID: 27006516 PMCID: PMC4794550 DOI: 10.1267/ahc.15032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Accepted: 10/29/2015] [Indexed: 11/22/2022] Open
Abstract
Recent advances in molecular and genetic techniques have led to establishment of new biomedical fields; however, morphological techniques are still required for a more precise understanding of functioning cells and tissues. Conventional preparation procedures involve a series of chemical fixation, alcohol dehydration, paraffin or epoxy resin embedding, sectioning, and staining steps. In these steps, technical artifacts modify original morphologies of the cells being examined. Furthermore, difficulties are associated with capturing dynamic images in vivo using conventional chemical fixation. Therefore, a quick-freezing (QF) method was introduced for biological specimens in the 20th century. However, specimens have to be resected from living animal organs with blood supply, and their dynamical morphologies have not been investigated in detail using the QF method. In order to overcome these issues, the tissue resection step of organs had to be avoided and samples needed to be frozen under blood circulation. Our in vivo cryotechnique (IVCT) was an original technique to cryofix samples without resecting their tissues. The most significant merit of IVCT is that blood circulation into organs is preserved at the exact moment of freezing, which has been useful for arresting transient physiological processes of cells and tissues and maintaining their components in situ.
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Affiliation(s)
- Shinichi Ohno
- Department of Anatomy and Molecular Histology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi
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Terada N, Saitoh Y, Kamijo A, Ohno S, Ohno N. Involvement of membrane skeletal molecules in the Schmidt-Lanterman incisure in Schwann cells. Med Mol Morphol 2015; 49:5-10. [PMID: 26541343 DOI: 10.1007/s00795-015-0125-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Accepted: 10/27/2015] [Indexed: 12/21/2022]
Abstract
Membrane skeletal networks form a two-dimensional lattice structure beneath erythrocyte membranes. 4.1R-MPP (membrane palmitoylated protein) 1-glycophorin C is one of the basic molecular complexes of the membrane skeleton. An analogous molecular complex, 4.1G-MPP6-cell adhesion molecule 4 (CADM4), is incorporated into the Schmidt-Lanterman incisure (SLI), a truncated cone shape in the myelin internode that is a specific feature of myelinated nerve fibers formed in Schwann cells in the peripheral nervous system. In this review, the dynamic structure of peripheral nerve fibers under stretching conditions is demonstrated using in vivo cryotechnique. The structures of nerve fibers had a beaded appearance, and the heights of SLI circular-truncated cones increased at the narrow sites of nerve fibers under the stretched condition. The height of SLI-truncated cones was lower in 4.1G-deficient nerve fibers than in wild-type nerve fibers. 4.1G was essential for the molecular targeting of MPP6 and CADM4 in SLI. The signal transduction protein, Src, was also involved in the 4.1G-MPP6-CADM4 molecular complex. The phosphorylation of Src was altered by the deletion of 4.1G. Thus, we herein demonstrate a membrane skeletal molecular complex in SLI that has potential roles in the regulation of adhesion and signal transduction as well as in structural stability in Schwann cells.
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Affiliation(s)
- Nobuo Terada
- Division of Health Sciences, Shinshu University Graduate School of Medicine, 3-1-1 Asahi, Matsumoto City, Nagano, 390-8621, Japan.
| | - Yurika Saitoh
- Department of Anatomy and Molecular Histology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo City, Yamanashi, Japan
| | - Akio Kamijo
- Division of Health Sciences, Shinshu University Graduate School of Medicine, 3-1-1 Asahi, Matsumoto City, Nagano, 390-8621, Japan
| | - Shinichi Ohno
- Department of Anatomy and Molecular Histology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo City, Yamanashi, Japan
| | - Nobuhiko Ohno
- Department of Anatomy and Molecular Histology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo City, Yamanashi, Japan
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Fukasawa Y, Ohno N, Saitoh Y, Saigusa T, Arita J, Ohno S. Immunohistochemical and morphofunctional studies of skeletal muscle tissues with electric nerve stimulation by in vivo cryotechnique. Acta Histochem Cytochem 2015; 48:27-36. [PMID: 26019372 PMCID: PMC4427562 DOI: 10.1267/ahc.14068] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2014] [Accepted: 03/03/2015] [Indexed: 11/22/2022] Open
Abstract
In this study, morphological and immunohistochemical alterations of skeletal muscle tissues during persistent contraction were examined by in vivo cryotechnique (IVCT). Contraction of gastrocnemius muscles was induced by sciatic nerve stimulation. The IVCT was performed immediately, 3 min or 10 min after the stimulation start. Prominent ripples of muscle fibers or wavy deformation of sarcolemma were detected immediately after the stimulation, but they gradually diminished to normal levels during the stimulation. The relative ratio of sarcomere and A band lengths was the highest in the control group, but it immediately decreased to the lowest level and then gradually recovered at 3 min or 10 min. Although histochemical intensity of PAS reaction was almost homogeneous in muscle tissues of the control group or immediately after the stimulation, it decreased at 3 min or 10 min. Serum albumin was immunolocalized as dot-like patterns within some muscle fibers at 3 min stimulation. These patterns became more prominent at 10 min, and the dots got larger and saccular in some sarcoplasmic regions. However, IgG1 and IgM were immunolocalized in blood vessels under nerve stimulation conditions. Therefore, IVCT was useful to capture the morphofunctional and metabolic changes of heterogeneous muscle fibers during the persistent contraction.
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Affiliation(s)
- Yuki Fukasawa
- Department of Anatomy and Molecular Histology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi
| | - Nobuhiko Ohno
- Department of Anatomy and Molecular Histology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi
| | - Yurika Saitoh
- Department of Anatomy and Molecular Histology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi
| | - Takeshi Saigusa
- First Department of Physiology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi
| | - Jun Arita
- First Department of Physiology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi
| | - Shinichi Ohno
- Department of Anatomy and Molecular Histology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi
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Shimo S, Saitoh S, Saitoh Y, Ohno N, Ohno S. Morphological and immunohistochemical analyses of soluble proteins in mucous membranes of living mouse intestines by cryotechniques. Microscopy (Oxf) 2015; 64:189-203. [PMID: 25770106 DOI: 10.1093/jmicro/dfv012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2014] [Accepted: 02/15/2015] [Indexed: 01/02/2023] Open
Abstract
We have performed immunohistochemical or ultrastructural analyses of living mouse small intestines using Epon blocks prepared by 'in vivo cryotechnique' (IVCT). By electron microscopy, intracellular ultrastructures of epithelial cells were well preserved in tissue areas 5-10 μm away from cryogen-contact surface tissues. Their microvilli contained dynamically waving actin filaments, and highly electron-dense organelles, such as mitochondria, were seen under the widely organized terminal web. By quick-freezing of fresh resected tissues (FT-QF), many erythrocytes were congested within blood vessels due to loss of blood pressure. By immersion-fixation (IM-DH) and perfusion-fixation (PF-DH), small vacuoles were often seen in the cytoplasm of epithelial cells, and their intercellular spaces were also dilated. Moreover, actin filament bundles were irregular in cross sections of microvilli, compared with those with IVCT. Epon-embedded thick sections were treated with sodium ethoxide, followed by antigen retrieval and immunostained for immunoglobulin A (IgA), Ig kappa light chain (Igκ), J-chain and albumin. By cryotechniques, IgA immunoreactivity was detected as tiny dot-like patterns in cytoplasm of some epithelial cells. Both J-chain and Igκ immunoreactivities were detected in the same local areas as those of IgA. By FT-QF, however, the IgA immunoreactivity was more weakly detected, compared with that with IVCT. In thick sections prepared by IM-DH and PF-DH, it was rarely observed in both plasma and epithelial cells. Another albumin was diffusely immunolocalized in extracellular matrices of mucous membranes and also within blood vessels. Thus, IVCT was useful for preservation of soluble proteins and ultrastructural analyses of dynamically changing epithelial cells of living mouse small intestines.
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Affiliation(s)
- Satoshi Shimo
- Department of Anatomy and Molecular Histology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi 409-3898, Japan Present address: Department of Occupational Therapy, Health Science University, 7187 Kodachi, Fujikawaguchiko, Yamanashi 401-0380, Japan
| | - Sei Saitoh
- Department of Anatomy and Molecular Histology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi 409-3898, Japan
| | - Yurika Saitoh
- Department of Anatomy and Molecular Histology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi 409-3898, Japan
| | - Nobuhiko Ohno
- Department of Anatomy and Molecular Histology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi 409-3898, Japan
| | - Shinichi Ohno
- Department of Anatomy and Molecular Histology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi 409-3898, Japan
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Kamijo A, Saitoh Y, Ohno N, Ohno S, Terada N. Immunohistochemical study of mouse sciatic nerves under various stretching conditions with "in vivo cryotechnique". J Neurosci Methods 2014; 227:181-8. [PMID: 24631319 DOI: 10.1016/j.jneumeth.2014.02.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2014] [Revised: 02/26/2014] [Accepted: 02/27/2014] [Indexed: 01/19/2023]
Abstract
BACKGROUND In living animal bodies, some morphological changes of nerve fibers will probably occur when peripheral nerves are stretched or not stretched during various joint exercises. We aimed to capture the dynamic structures of nerves under various stretching conditions and to keep soluble serum proteins in their tissue sections. NEW METHOD Morphological changes of stretched or non-stretched sciatic nerve fibers were examined with "in vivo cryotechnique" (IVCT). Fibers were directly frozen with liquid isopentane-propane cryogen (-193°C). Immunolocalizations of protein 4.1G and albumin were also examined in the fibers. RESULTS The structures of IVCT-prepared sciatic nerves under the stretched condition showed a beaded appearance. By immunostaining for membrane skeletal protein 4.1G, Schmidt-Lanterman incisures (SLIs) were clearly identified, and the heights of their circular truncated cones were increased at narrow sites of the nerve fibers under the stretched condition, compared to those of non-stretched nerve fibers. Albumin was immunolocalized in blood vessels and also along endoneurium including regions near the node of Ranvier. COMPARISON WITH EXISTING METHODS With the conventional perfusion-fixation method (PF), it was difficult to keep stable postures of living mouse limbs for tissue preparation. In nerve fibers after PF, the structures of SLI were easily modified, and albumin was heterogeneously immunolocalized due to diffusion artifacts. CONCLUSIONS IVCT revealed (1) the structures of peripheral nerve fibers under dynamically different conditions, indicating that the morphological changes of SLIs play a functional role as a bumper structure against mechanical forces, and (2) accurate immunolocalization of serum albumin in the sciatic nerve fibers.
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Affiliation(s)
- Akio Kamijo
- Division of Health Sciences, Shinshu University Graduate School of Medicine, Matsumoto City, Nagano 390-8621, Japan
| | - Yurika Saitoh
- Department of Anatomy and Molecular Histology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Chuo City, Yamanashi 409-3898, Japan
| | - Nobuhiko Ohno
- Department of Anatomy and Molecular Histology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Chuo City, Yamanashi 409-3898, Japan
| | - Shinichi Ohno
- Department of Anatomy and Molecular Histology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Chuo City, Yamanashi 409-3898, Japan
| | - Nobuo Terada
- Division of Health Sciences, Shinshu University Graduate School of Medicine, Matsumoto City, Nagano 390-8621, Japan.
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Saitoh Y, Terada N, Ohno N, Hamano A, Okumura N, Jin T, Saiki I, Ohno S. Imaging of thrombosis and microcirculation in mouse lungs of initial melanoma metastasis with in vivo cryotechnique. Microvasc Res 2013; 91:73-83. [PMID: 24316421 DOI: 10.1016/j.mvr.2013.11.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2013] [Revised: 11/22/2013] [Accepted: 11/23/2013] [Indexed: 01/30/2023]
Abstract
Microscopic bioimaging of blood flow and distribution of cancer cells in lungs is essential to analyze mechanism of lung metastasis. Such cancer metastasis has been well known to induce hypercoagulable states and thrombosis. In histopathological tissue sections, however, it has been difficult to capture rapid phenomenon of thrombus formation due to technical problems associated with much less retention of soluble serum components as well as dynamic histological features reflecting their living states. In this study, to achieve bioimaging of both hypercoagulable states and thrombosis induced by early metastasis of mouse B16-BL6 melanoma, "in vivo cryotechnique" (IVCT) was used, which retained soluble components at their original sites. Glutathione-coated quantum dots (QDs) were subsequently injected after melanoma cells via right ventricles to examine plasma flow with fluorescence emission. At 5s after the melanoma injection, melanoma cells were mostly stacked and intruded in alveolar capillaries with changing their shapes. Assembly of platelets initially appeared at 1min, and they aggregated around the stacked melanoma cells at 5min. Such aggregated platelets were immunopositive for both phospho-tyrosine 418 and 527 of Src, indicating their partial signal activation. Fibrin monomers were also immunolocalized around both melanoma cells and platelet aggregates, and massive immunoreaction deposits of fibrinogen were also detected near the same areas, but more strongly detected around the melanoma cells, indicating initial thrombus formation. In those areas, QDs were rarely detected, probably because of the lack of blood supply. Thus, IVCT revealed histopathological features of initial thrombosis under their circulatory conditions.
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Affiliation(s)
- Yurika Saitoh
- Department of Anatomy and Molecular Histology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Chuo City, Yamanashi 409-3898, Japan.
| | - Nobuo Terada
- Department of Anatomy and Molecular Histology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Chuo City, Yamanashi 409-3898, Japan; Department of Occupational Therapy, School of Health Sciences, Shinshu University School of Medicine, Matsumoto City, Nagano 390-8621, Japan.
| | - Nobuhiko Ohno
- Department of Anatomy and Molecular Histology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Chuo City, Yamanashi 409-3898, Japan.
| | - Akiei Hamano
- Central Research Laboratory of Nissui Pharmaceutical Co. Ltd., Yuuki City, Ibaraki 307-0036, Japan.
| | - Nobuo Okumura
- Department of Biomedical Laboratory Sciences, Laboratory of Clinical Chemistry, School of Health Sciences, Shinshu University School of Medicine, Matsumoto City, Nagano 390-8621, Japan.
| | - Takashi Jin
- Laboratory for Nano-Bio Probes, RIKEN Quantitative Biology Center, Suita City, Osaka 565-0874, Japan.
| | - Ikuo Saiki
- Division of Pathogenic Biochemistry, Institute of Natural Medicine, University of Toyama, Toyama City, Toyama 930-0194, Japan.
| | - Shinichi Ohno
- Department of Anatomy and Molecular Histology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Chuo City, Yamanashi 409-3898, Japan.
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16
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Chen J, Terada N, Saitoh Y, Huang Z, Ohno N, Ohno S. Detection of MAPK signal transduction proteins in an ischemia/reperfusion model of mouse intestine using in vivo cryotechnique. Histochem Cell Biol 2013; 140:491-505. [DOI: 10.1007/s00418-013-1113-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/08/2013] [Indexed: 12/24/2022]
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17
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Taatjes DJ, Roth J. The Histochemistry and Cell Biology compendium: a review of 2012. Histochem Cell Biol 2013; 139:815-46. [PMID: 23665922 DOI: 10.1007/s00418-013-1098-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/29/2013] [Indexed: 01/27/2023]
Abstract
The year 2012 was another exciting year for Histochemistry and Cell Biology. Innovations in immunohistochemical techniques and microscopy-based imaging have provided the means for advances in the field of cell biology. Over 130 manuscripts were published in the journal during 2012, representing methodological advancements, pathobiology of disease, and cell and tissue biology. This annual review of the manuscripts published in the previous year in Histochemistry and Cell Biology serves as an abbreviated reference for the readership to quickly peruse and discern trends in the field over the past year. The review has been broadly divided into multiple sections encompassing topics such as method advancements, subcellular components, extracellular matrix, and organ systems. We hope that the creation of this subdivision will serve to guide the reader to a specific topic of interest, while simultaneously providing a concise and easily accessible encapsulation of other topics in the broad area of Histochemistry and Cell Biology.
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Affiliation(s)
- Douglas J Taatjes
- Department of Pathology and Microscopy Imaging Center, University of Vermont College of Medicine, 89 Beaumont Avenue, Burlington, VT 05405, USA.
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18
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Terada N, Saitoh Y, Ohno N, Komada M, Yamauchi J, Ohno S. Involvement of Src in the membrane skeletal complex, MPP6-4.1G, in Schmidt-Lanterman incisures of mouse myelinated nerve fibers in PNS. Histochem Cell Biol 2013; 140:213-22. [PMID: 23306908 DOI: 10.1007/s00418-012-1073-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/15/2012] [Indexed: 11/26/2022]
Abstract
Schmidt-Lanterman incisures (SLIs) are a specific feature of myelinated nerve fibers in the peripheral nervous system (PNS). In this study, we report localization of a signal transduction protein, Src, in the SLIs of mouse sciatic nerves, and its phosphorylation states in Y527 and Y418 (P527 and P418, respectively) under normal conditions or deletion of a membrane skeletal protein, 4.1G. In adult mouse sciatic nerves, Src was immunolocalized in SLIs as a cone-shape, as well as in paranodes and some areas of structures reminiscent of Cajal bands. By immunostaining in normal nerves, P527-Src was strongly detected in SLIs, whereas P418-Src was much weaker. Developmentally, P418-Src was detected in SLIs of early postnatal mouse sciatic nerves. The staining patterns for P527 and P418 in normal adult nerve fibers were opposite to those in primary culture Schwann cells and a Schwannoma cell line, RT4-D6P2T. In 4.1G-deficient nerve fibers, which had neither 4.1G nor the membrane protein palmitoylated 6 (MPP6) in SLIs, the P418-Src immunoreactivity in SLIs was clearly detected at a stronger level than that in the wild type. An immunoprecipitation study revealed Src interaction with MPP6. These findings indicate that the Src-MPP6-4.1G protein complex in SLIs has a role in signal transduction in the PNS.
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Affiliation(s)
- Nobuo Terada
- Department of Occupational Therapy, School of Health Sciences, Shinshu University School of Medicine, Matsumoto City, Nagano, Japan.
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