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Oda H, Kaizawa Y, Franklin A, Sanchez Rangel U, Storaci H, Min JG, Wang Z, Abrams GD, Chang J, Fox PM. Assessment of a Synergistic Effect of Platelet-Rich Plasma and Stem Cell-Seeded Hydrogel for Healing of Rat Chronic Rotator Cuff Injuries. Cell Transplant 2023; 32:9636897231190174. [PMID: 37592455 PMCID: PMC10467370 DOI: 10.1177/09636897231190174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Revised: 06/29/2023] [Accepted: 07/11/2023] [Indexed: 08/19/2023] Open
Abstract
Outcomes after repair of chronic rotator cuff injuries remain suboptimal. Type-1 collagen-rich tendon hydrogel was previously reported to improve healing in a rat chronic rotator cuff injury model. Stem cell seeding of the tendon hydrogel improved bone quality in the same model. This study aimed to examine whether there was a synergistic and dose-dependent effect of platelet-rich plasma (PRP) on tendon-bone interface healing by combining PRP with stem cell-seeded tendon hydrogel. Human cadaveric tendons were processed into a hydrogel. PRP was prepared at two different platelet concentrations: an initial concentration (initial PRP group) and a higher concentration (concentrated PRP group). Tendon hydrogel was mixed with adipose-derived stem cells and one of the platelet concentrations. Methylcellulose, as opposed to saline, was used as a negative control due to comparable viscosity. The supraspinatus tendon was detached bilaterally in 33 Sprague-Dawley rats (66 shoulders). Eight weeks later, each detached tendon was repaired, and a hydrogel mixture or control was injected at the repair site. Eight weeks after repair, shoulder samples were harvested and assigned for biomechanical testing (n = 42 shoulders) or a combination of bone morphological and histological assessment (n = 24 shoulders). Biomechanical testing showed significantly higher failure load and stiffness in the concentrated PRP group than in control. Yield load in the initial and concentrated PRP groups were significantly higher than that in the control. There were no statistically significant differences between the initial and concentrated PRP groups. The addition of the highly concentrated PRP to stem cells-seeded tendon hydrogel improved healing biomechanically after chronic rotator cuff injury in rats compared to control. However, synergistic and dose-dependent effects were not seen.
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Affiliation(s)
- Hiroki Oda
- Division of Plastic & Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine and Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, USA
| | - Yukitoshi Kaizawa
- Division of Plastic & Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine and Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, USA
| | - Austin Franklin
- Division of Plastic & Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine and Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, USA
| | - Uriel Sanchez Rangel
- Division of Plastic & Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine and Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, USA
| | - Hunter Storaci
- Department of Orthopedic Surgery, Stanford University School of Medicine, Redwood City, CA, USA
| | - Jung Gi Min
- Division of Plastic & Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine and Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, USA
| | - Zhen Wang
- Division of Plastic & Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine and Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, USA
| | - Geoffrey D. Abrams
- Department of Orthopedic Surgery, Stanford University School of Medicine, Redwood City, CA, USA
| | - James Chang
- Division of Plastic & Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine and Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, USA
| | - Paige M. Fox
- Division of Plastic & Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine and Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, USA
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Tabata A, Matsumoto A, Fujimoto A, Ohkura K, Ikeda T, Oda H, Yokohata S, Kobayashi M, Tomoyasu T, Takao A, Ohkuni H, Nagamune H. Dual functions of discoidinolysin, a cholesterol-dependent cytolysin with N-terminal discoidin domain produced from Streptococcus mitis strain Nm-76. J Oral Microbiol 2022; 14:2105013. [PMID: 35937899 PMCID: PMC9351568 DOI: 10.1080/20002297.2022.2105013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Background Some strains of Streptococcus mitis exhibit β-hemolysis due to the β-hemolytic activity of cholesterol-dependent cytolysin (CDC). Recently, a gene encoding an atypical lectinolysin-related CDC was found in S. mitis strain Nm-76. However, the product of this gene remains uncharacterized. We aimed to characterize this atypical CDC and its molecular functions and contribution to the pathogenicity of S. mitis strain Nm-76. Methods Phylogenetic analysis of the CDC gene was conducted based on the web-deposited information. The molecular characteristics of CDC were investigated using a gene-deletion mutant strain and recombinant proteins expressed in Escherichia coli. Results The gene encoding CDC found in Nm-76 and its homolog are distributed among many S. mitis strains. This CDC is phylogenetically different from other previously characterized CDCs, such as S. mitis-derived human platelet aggregation factor (Sm-hPAF)/lectinolysin and mitilysin. Because this CDC possesses an additional N-terminal domain, including a discoidin motif, it was termed discoidinolysin (DLY). In addition to the preferential lysis of human cells, DLY displayed N-terminal domain-dependent facilitation of human erythrocyte aggregation and intercellular associations between human cells. Conclusion DLY functions as a hemolysin/cytolysin and erythrocyte aggregation/intercellular association molecule. This dual-function DLY could be an additional virulence factor in S. mitis.
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Affiliation(s)
- Atsushi Tabata
- Department of Bioengineering, Division of Bioscience and Bioindustry, Graduate School of Technology, Industrial and Social Sciences, Tokushima University Graduate School, Tokushima, Japan
- Department of Biological Science and Technology, Life System, Institute of Technology and Science, Tokushima University Graduate School, Tokushima, Japan
- Department of Bioengineering, Faculty of Bioscience and Bioindustry, Tokushima University, Tokushima, Japan
| | - Airi Matsumoto
- Department of Biological Science and Technology, Life System, Institute of Technology and Science, Tokushima University Graduate School, Tokushima, Japan
| | - Ai Fujimoto
- Department of Biological Science and Technology, Life System, Institute of Technology and Science, Tokushima University Graduate School, Tokushima, Japan
| | - Kazuto Ohkura
- Division of Clinical Pharmacy and Pharmaceutical Sciences, Graduate School of Pharmaceutical Sciences, Suzuka University of Medical Science, Suzuka, Japan
| | - Takuya Ikeda
- Department of Bioengineering, Faculty of Bioscience and Bioindustry, Tokushima University, Tokushima, Japan
| | - Hiroki Oda
- Department of Bioengineering, Faculty of Bioscience and Bioindustry, Tokushima University, Tokushima, Japan
| | - Shuto Yokohata
- Department of Bioengineering, Faculty of Bioscience and Bioindustry, Tokushima University, Tokushima, Japan
| | - Miho Kobayashi
- Department of Biological Science and Technology, Life System, Institute of Technology and Science, Tokushima University Graduate School, Tokushima, Japan
| | - Toshifumi Tomoyasu
- Department of Bioengineering, Division of Bioscience and Bioindustry, Graduate School of Technology, Industrial and Social Sciences, Tokushima University Graduate School, Tokushima, Japan
- Department of Biological Science and Technology, Life System, Institute of Technology and Science, Tokushima University Graduate School, Tokushima, Japan
- Department of Bioengineering, Faculty of Bioscience and Bioindustry, Tokushima University, Tokushima, Japan
| | - Ayuko Takao
- Department of Oral Microbiology, School of Dental Medicine, Tsurumi University, Kanagawa, Japan
| | - Hisashi Ohkuni
- Research Institute, Health Science Research Institute East Japan Co., Ltd., Saitama, Japan
| | - Hideaki Nagamune
- Department of Bioengineering, Division of Bioscience and Bioindustry, Graduate School of Technology, Industrial and Social Sciences, Tokushima University Graduate School, Tokushima, Japan
- Department of Biological Science and Technology, Life System, Institute of Technology and Science, Tokushima University Graduate School, Tokushima, Japan
- Department of Bioengineering, Faculty of Bioscience and Bioindustry, Tokushima University, Tokushima, Japan
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Iwasaki-Yokozawa S, Nanjo R, Akiyama-Oda Y, Oda H. Publisher Correction: Lineage-specific, fast-evolving GATA-like gene regulates zygotic gene activation to promote endoderm specification and pattern formation in the Theridiidae spider. BMC Biol 2022; 20:286. [PMID: 36527069 PMCID: PMC9758898 DOI: 10.1186/s12915-022-01494-x] [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: 12/23/2022] Open
Affiliation(s)
- Sawa Iwasaki-Yokozawa
- grid.417743.20000 0004 0493 3502Laboratory of Evolutionary Cell and Developmental Biology, JT Biohistory Research Hall, Takatsuki, Osaka 569-1125 Japan
| | - Ryota Nanjo
- grid.417743.20000 0004 0493 3502Laboratory of Evolutionary Cell and Developmental Biology, JT Biohistory Research Hall, Takatsuki, Osaka 569-1125 Japan ,grid.136593.b0000 0004 0373 3971Department of Biological Sciences, Graduate School of Science, Osaka University, Toyonaka, Japan
| | - Yasuko Akiyama-Oda
- grid.417743.20000 0004 0493 3502Laboratory of Evolutionary Cell and Developmental Biology, JT Biohistory Research Hall, Takatsuki, Osaka 569-1125 Japan ,grid.419082.60000 0004 1754 9200PRESTO, Japan Science and Technology Agency, Kawaguchi, Saitama 332-0012 Japan ,Department of Microbiology and Infection Control, Faculty of Medicine, Osaka Medical and Pharmaceutical University, Takatsuki, Japan
| | - Hiroki Oda
- grid.417743.20000 0004 0493 3502Laboratory of Evolutionary Cell and Developmental Biology, JT Biohistory Research Hall, Takatsuki, Osaka 569-1125 Japan ,grid.136593.b0000 0004 0373 3971Department of Biological Sciences, Graduate School of Science, Osaka University, Toyonaka, Japan
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Oda H, Kaizawa Y, Franklin A, Rangel US, Min JG, Akerman J, Storaci H, Wang Z, Abrams GD, Chang J, Fox PM. Biomechanical, Histologic, and Micro-Computed Tomography Characterization of Partial-Width Full-Thickness Supraspinatus Tendon Injury in Rats. J Hand Surg Am 2022:S0363-5023(22)00510-X. [PMID: 36280554 DOI: 10.1016/j.jhsa.2022.08.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 07/08/2022] [Accepted: 08/17/2022] [Indexed: 11/06/2022]
Abstract
PURPOSE Partial rotator cuff tears can cause shoulder pain and dysfunction and are more common than complete tears. However, few studies examine partial injuries in small animals and, therefore a robust, clinically relevant model may be lacking. This study aimed to fully characterize the established rat model of partial rotator cuff injury over time and determine if it models human partial rotator cuff tears. METHODS We created a full-thickness, partial-width injury at the supraspinatus tendon-bone interface bilaterally in 31 Sprague-Dawley rats. Rats were euthanized immediately, and at 2-, 3-, 4-, and 8-weeks after surgery. Fourteen intact shoulders were used as controls. Samples were assessed biomechanically, histologically, and morphologically. RESULTS Biomechanically, load to failure in controls and 8 weeks after injury was significantly greater than immediately and 3 weeks after injury. Load to failure at 8 weeks was comparable to control. However, the locations of failure were different between intact shoulders and partially injured samples. Bone mineral density at 8 weeks was significantly greater than that at 2 and 3 weeks. Although no animals demonstrated propagation to complete tear and the injury site remodeled histologically, the appearance at 8 weeks was not identical to that in the controls. CONCLUSIONS The biomechanical properties and bone quality decreased after the injury and was restored gradually over time with full restoration by 8 weeks after injury. However, the findings were not equivalent to the intact shoulder. This study demonstrated the limitations of the current model in its application to long-term outcome studies, and the need for better models that can be used to assess chronic partial rotator cuff injuries. CLINICAL RELEVANCE There is no small animal model that mimics human chronic partial rotator cuff tears, which limits our ability to improve care for this common condition.
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Affiliation(s)
- Hiroki Oda
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, and Veterans Affairs Palo Alto Health Care System, Palo Alto, CA
| | - Yukitoshi Kaizawa
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, and Veterans Affairs Palo Alto Health Care System, Palo Alto, CA
| | - Austin Franklin
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, and Veterans Affairs Palo Alto Health Care System, Palo Alto, CA
| | - Uriel Sanchez Rangel
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, and Veterans Affairs Palo Alto Health Care System, Palo Alto, CA
| | - Jung Gi Min
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, and Veterans Affairs Palo Alto Health Care System, Palo Alto, CA
| | - Jack Akerman
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, and Veterans Affairs Palo Alto Health Care System, Palo Alto, CA
| | - Hunter Storaci
- Department of Orthopedic Surgery, Stanford University School of Medicine, Redwood City, CA
| | - Zhen Wang
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, and Veterans Affairs Palo Alto Health Care System, Palo Alto, CA
| | - Geoffrey D Abrams
- Department of Orthopedic Surgery, Stanford University School of Medicine, Redwood City, CA
| | - James Chang
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, and Veterans Affairs Palo Alto Health Care System, Palo Alto, CA
| | - Paige M Fox
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, and Veterans Affairs Palo Alto Health Care System, Palo Alto, CA.
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Iwasaki-Yokozawa S, Nanjo R, Akiyama-Oda Y, Oda H. Lineage-specific, fast-evolving GATA-like gene regulates zygotic gene activation to promote endoderm specification and pattern formation in the Theridiidae spider. BMC Biol 2022; 20:223. [PMID: 36203191 PMCID: PMC9535882 DOI: 10.1186/s12915-022-01421-0] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 09/27/2022] [Indexed: 11/23/2022] Open
Abstract
Background
The process of early development varies across the species-rich phylum Arthropoda. Owing to the limited research strategies for dissecting lineage-specific processes of development in arthropods, little is known about the variations in early arthropod development at molecular resolution. The Theridiidae spider, Parasteatoda tepidariorum, has its genome sequenced and could potentially contribute to dissecting early embryonic processes. Results We present genome-wide identification of candidate genes that exhibit locally restricted expression in germ disc forming stage embryos of P. tepidariorum, based on comparative transcriptomes of isolated cells from different regions of the embryo. A subsequent pilot screen by parental RNA interference identifies three genes required for body axis formation. One of them is a GATA-like gene that has been fast evolving after duplication and divergence from a canonical GATA family gene. This gene is designated fuchi nashi (fuchi) after its knockdown phenotypes, where the cell movement toward the formation of a germ disc was reversed. fuchi expression occurs in cells outside a forming germ disc and persists in the endoderm. Transcriptome and chromatin accessibility analyses of fuchi pRNAi embryos suggest that early fuchi activity regulates chromatin state and zygotic gene activation to promote endoderm specification and pattern formation. We also show that there are many uncharacterized genes regulated by fuchi. Conclusions Our genome-based research using an arthropod phylogenetically distant from Drosophila identifies a lineage-specific, fast-evolving gene with key developmental roles in one of the earliest, genome-wide regulatory events, and allows for molecular exploration of the developmental variations in early arthropod embryos. Supplementary Information The online version contains supplementary material available at 10.1186/s12915-022-01421-0.
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Affiliation(s)
- Sawa Iwasaki-Yokozawa
- Laboratory of Evolutionary Cell and Developmental Biology, JT Biohistory Research Hall, Takatsuki, Osaka, 569-1125, Japan
| | - Ryota Nanjo
- Laboratory of Evolutionary Cell and Developmental Biology, JT Biohistory Research Hall, Takatsuki, Osaka, 569-1125, Japan.,Department of Biological Sciences, Graduate School of Science, Osaka University, Toyonaka, Japan
| | - Yasuko Akiyama-Oda
- Laboratory of Evolutionary Cell and Developmental Biology, JT Biohistory Research Hall, Takatsuki, Osaka, 569-1125, Japan.,PRESTO, Japan Science and Technology Agency, Kawaguchi, Saitama, 332-0012, Japan.,Department of Microbiology and Infection Control, Faculty of Medicine, Osaka Medical and Pharmaceutical University, Takatsuki, Japan
| | - Hiroki Oda
- Laboratory of Evolutionary Cell and Developmental Biology, JT Biohistory Research Hall, Takatsuki, Osaka, 569-1125, Japan. .,Department of Biological Sciences, Graduate School of Science, Osaka University, Toyonaka, Japan.
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Tamura R, Oda H, Kosugi K, Toda M. Surgical Planning and Simulation of Endonasal Endoscopic Surgery for Pituitary Adenoma With Cavernous Sinus Invasion. Oper Neurosurg (Hagerstown) 2022; 23:e276-e282. [PMID: 36001763 DOI: 10.1227/ons.0000000000000339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 05/05/2022] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND Transsphenoidal endoscopic endonasal surgery (EES) provides effective treatment for patients with lesions of the sella turcica. The endoscopic technique requires different instrumentation, which depends on the gross anatomy of the nasal cavity. The treatment of lateral lesions is more challenging in EES. OBJECTIVE To evaluate the effect of preoperative simulation using multiple anatomic landmarks. METHODS Pre- and postoperative tumor volumes were analyzed in 33 patients with nonfunctioning pituitary adenomas who underwent EES (Knosp grades 3 and 4). The surgical working angle and space were three-dimensionally simulated at the plane of the anterior/posterior surgical field (tuberculum sellae/posterior clinoid process) using multiple anatomic landmarks of high-resolution computed tomography scans, such as nasal piriform aperture (proximal surgical corridor), and the width of bilateral vidian canals or lamina perpendicularis of palatine bone (distal surgical corridor). Receiver operating characteristic curves for the removed tumor volume were used to determine the cutoff value for the simulated working angle and space. RESULTS Simulated working space at the plane of tuberculum sellae using piriform aperture and lamina perpendicularis of palatine bone was associated with the removed tumor volume in the cavernous sinus. Patients with a larger working space (≥42.7 mm) significantly showed a higher removed tumor volume ( P = .023). There was no relationship between other parameters and the removed tumor volume. CONCLUSION A new method to predict the surgical field for cavernous sinus lesions around sella turcica was successfully established. Further studies are needed to define and expand applications of this simulation method.
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Affiliation(s)
- Ryota Tamura
- Department of Neurosurgery, Keio University School of Medicine, Tokyo, Japan
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Fujiwara M, Akiyama-Oda Y, Oda H. Virtual spherical-shaped multicellular platform for simulating the morphogenetic processes of spider-like body axis formation. Front Cell Dev Biol 2022; 10:932814. [PMID: 36036016 PMCID: PMC9411422 DOI: 10.3389/fcell.2022.932814] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Accepted: 07/08/2022] [Indexed: 11/16/2022] Open
Abstract
Remodeling of multicellular architecture is a critical developmental process for shaping the axis of a bilaterally symmetric animal body and involves coordinated cell–cell interactions and cell rearrangement. In arthropods, the early embryonic process that leads to the segmented body axis varies at the cellular and molecular levels depending on the species. Developmental studies using insect and spider model species have provided specific examples of these diversified mechanisms that regulate axis formation and segmentation in arthropod embryos. However, there are few theoretical models for how diversity in the early embryonic process occurred during evolution, in part because of a limited computational infrastructure. We developed a virtual spherical-shaped multicellular platform to reproduce body axis-forming processes. Each virtual cell behaves according to the cell vertex model, with the computational program organized in a hierarchical order from cells and tissues to whole embryos. Using an initial set of two different mechanical states for cell differentiation and global directional signals that are linked to the planar polarity of each cell, the virtual cell assembly exhibited morphogenetic processes similar to those observed in spider embryos. We found that the development of an elongating body axis is achieved through implementation of an interactive cell polarity parameter associated with edge tension at the cell–cell adhesion interface, with no local control of the cell division rate and direction. We also showed that modifying the settings can cause variation in morphogenetic processes. This platform also can embed a gene network that generates waves of gene expression in a virtual dynamic multicellular field. This study provides a computational platform for testing the development and evolution of animal body patterns.
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Affiliation(s)
- Motohiro Fujiwara
- Laboratory of Evolutionary Cell and Developmental Biology, JT Biohistory Research Hall, Takatsuki, Japan
- *Correspondence: Motohiro Fujiwara, ; Hiroki Oda,
| | - Yasuko Akiyama-Oda
- Laboratory of Evolutionary Cell and Developmental Biology, JT Biohistory Research Hall, Takatsuki, Japan
- PRESTO, Japan Science and Technology Agency (JST), Kawaguchi, Japan
- Department of Microbiology and Infection Control, Faculty of Medicine, Osaka Medical and Pharmaceutical University, Takatsuki, Japan
| | - Hiroki Oda
- Laboratory of Evolutionary Cell and Developmental Biology, JT Biohistory Research Hall, Takatsuki, Japan
- Department of Biological Science, Graduate School of Science, Osaka University, Toyonaka, Japan
- *Correspondence: Motohiro Fujiwara, ; Hiroki Oda,
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Akiyama-Oda Y, Akaiwa T, Oda H. Reconstruction of the Global Polarity of an Early Spider Embryo by Single-Cell and Single-Nucleus Transcriptome Analysis. Front Cell Dev Biol 2022; 10:933220. [PMID: 35938158 PMCID: PMC9353575 DOI: 10.3389/fcell.2022.933220] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Accepted: 06/22/2022] [Indexed: 01/07/2023] Open
Abstract
Patterning along an axis of polarity is a fundamental step in the development of a multicellular animal embryo. In the cellular field of an early spider embryo, Hedgehog signaling operates to specify a “fuzzy” French-flag-like pattern along the primary axis, which is related to the future anterior–posterior (A–P) axis. However, details regarding the generation and development of a diversity of cell states based on the embryo polarity are not known. To address this issue, we applied single-cell RNA sequencing to the early spider embryo consisting of approximately 2,000 cells. Our results confirmed that this technique successfully detected 3 cell populations corresponding to the germ layers and some transient cell states. We showed that the data from dissociated cells had sufficient information for reconstruction of a correct global A–P polarity of the presumptive ectoderm, without clear segregation of specific cell states. This outcome is explained by the varied but differentially overlapping expression of Hedgehog-signal target genes and newly identified marker genes. We also showed that the data resources generated by the transcriptome analysis are applicable to a genome-wide search for genes whose expression is spatially regulated, based on the detection of pattern similarity. Furthermore, we performed single-nucleus RNA sequencing, which was more powerful in detecting emerging cell states. The single-cell and single-nucleus transcriptome techniques will help investigate the pattern-forming processes in the spider model system in an unbiased, comprehensive manner. We provided web-based resources of these transcriptome datasets for future studies of pattern formation and cell differentiation.
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Affiliation(s)
- Yasuko Akiyama-Oda
- JT Biohistory Research Hall, Takatsuki, Japan
- PRESTO, Japan Science and Technology Agency, Kawaguchi, Japan
- Department of Microbiology and Infection Control, Faculty of Medicine, Osaka Medical and Pharmaceutical University, Takatsuki, Japan
- *Correspondence: Yasuko Akiyama-Oda,
| | - Takanori Akaiwa
- JT Biohistory Research Hall, Takatsuki, Japan
- Department of Biological Science, Graduate School of Science, Osaka University, Toyonaka, Japan
| | - Hiroki Oda
- JT Biohistory Research Hall, Takatsuki, Japan
- Department of Biological Science, Graduate School of Science, Osaka University, Toyonaka, Japan
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Imajima T, Shirakawa T, Shimokawa M, Otsuka T, Shibuki T, Nakazawa J, Arima S, Miwa K, Okabe Y, Koga F, Kubotsu Y, Ueda Y, Hosokawa A, Takeshita S, Shimokawa H, Komori A, Kawahira M, Oda H, Sakai K, Arita S, Mizuta T, Mitsugi K. P-113 A multicenter observational study of liposomal irinotecan and fluorouracil/leucovorin in patients with unresectable or recurrent pancreatic cancer (NAPOLEON-2): Retrospective part. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.04.203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Yokota K, Sekikawa M, Tanaka S, Aizaki Y, Kadono Y, Oda H, Mimura T. AB0095 CHARACTERISTICS OF TUMOR NECROSIS FACTOR-ALPHA AND INTERLEUKIN-6-INDUCED OSTEOCLASTS IN PERIPHERAL BLOOD AND BONE TISSUE FROM PATIENTS WITH RHEUMATOID ARTHRITIS. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.4645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BackgroundWe have previously reported that stimulation of mouse bone marrow–derived macrophages with tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) induces differentiation of osteoclast-like cells having bone resorption ability1. Recently, we have shown that the combination of TNF-α and IL-6 can induce osteoclasts from human peripheral blood mononuclear cells (PBMCs) via RANKL-independent pathways, and that there are functional differences between TNF-α and IL-6-induced osteoclasts (T6-OCs) and RANKL-induced, conventional osteoclasts (cOCs). In particular, the number of T6-OCs differentiated from PBMCs in patients with rheumatoid arthritis (RA) positively correlated with the modified total Sharp score (mTSS)2. On the other hands, no such correlation was observed between the number of cOCs from RA and mTSS.ObjectivesObjectives of this study were to compare the differentiational potential into T6-OCs of PBMCs from RA patients with those from healthy donors, to clarify mRNA and protein expressions of T6-OCs derived from PBMCs from patients with RA, and to identify tartrate resistant acid phosphatase (TRACP) positive multinuclear cells with the same characters as T6-OCs histologically in the sub-chondral bone tissues from patients with RA and osteoarthritis (OA).MethodsPBMCs and CD14+ monocytes derived from RA patients and healthy volunteers were stimulated with TNF-α and IL-6 or RANKL. Real-time quantitative PCR and immunofluorescence staining were used to measure expression levels of osteoclast-associated mRNA and protein. Consecutive sections of the proximal tibial bone tissue from patients with RA and OA (n=6 each) were stained by TRACP, and analyzed expression levels of osteoclast-associated molecules by immunohistochemistry.ResultsThe number of T6-OCs differentiated from PBMCs in RA patients was significantly increased compared to that in healthy volunteers. Expression levels of RANK mRNA and protein were clearly up-regulated in cOCs differentiated from CD14+ monocytes and were down-regulated in T6-OCs. In contrast, expression levels of MMP-3 mRNA and protein were obviously up-regulated in T6-OCs and down-regulated in cOCs. Therefore, we believe T6-OCs and cOCs were differently identified on bone tissue as TRACP+RANK-/MMP-3+ cells and TRACP+RANK+/MMP-3- cells, respectively. The numbers of TRACP+ osteoclasts in subchondral cancellous bone were significantly increased in RA patients compared to those in OA patients. Interestingly, numerous TRACP+/RANK-/MMP-3+ osteoclasts were present in the subchondral bone from patients with RA, on the other hands, no such cells observed in OA patients.ConclusionThe PBMCs of RA patients have definitely increased differentiation capacity into T6-OCs, which have potential of degrading chondral tissue. Additionally, cells having same characteristics with T6-OCs are observed in subchondral bone of patients with RA. These results suggest that novel T6-OCs may be involved in the pathogenic mechanisms of inflammatory bone destruction in patients with RA.References[1]Yokota K, Sato K, Miyazaki T, Kitaura H, Kayama H, Miyoshi F, Araki Y, Akiyama Y, Takeda K, Mimura T. Combination of Tumor Necrosis Factor α and Interleukin-6 Induces Mouse Osteoclast-like Cells With Bone Resorption Activity Both in Vitro and In Vivo. Arthritis & Rheumatology Jan;66(1):121-9, 2014.[2]Yokota K, Sato K, Miyazaki T, Aizaki Y, Tanaka S, Sekikawa M, Kozu N, Kadono Y, Oda H, Mimura T. Characterization and Function of Tumor Necrosis Factor alpha and Interleukin-6-Induced Osteoclasts in Rheumatoid Arthritis. Arthritis & Rheumatology Jul;73(7):1145-1154, 2021.AcknowledgementsWe are grateful to H. Kajiyama and Y. Araki (Saitama Medical University) for helpful discussion.Disclosure of InterestsNone declared
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Kojo K, Oda H, Suetomi T, Negoro H, Nishiyama H. A review of intravaginal ejaculatory dysfunction and unconsummated marriage cases in the outpatient clinic for male infertility at the University of Tsukuba Hospital. J Sex Med 2022. [DOI: 10.1016/j.jsxm.2022.03.468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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12
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Yamanashi K, Ohsumi A, Oda H, Kayawake H, Tanaka S, Yamada Y, Nakajima D, Date H. Reduction of Donor Mononuclear Phagocytes During Ex Vivo Lung Perfusion Attenuates Ischemia-Reperfusion Injury in a Rat Lung Transplantation Model. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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13
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Onozawa E, Goto A, Oda H, Seki S, Sako T, Mori A. Comparison of the effects of two commercially available prescription diet regimens on the fecal microbiomes of client-owned healthy pet dogs. Pol J Vet Sci 2022; 25:93-101. [PMID: 35575869 DOI: 10.24425/pjvs.2022.140845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
In the present study, we used next-generation sequencing to investigate the impacts of two commercially available prescription diet regimens on the fecal microbiomes of eleven client-owned healthy pet dogs. We tested an anallergenic diet on 6 dogs and a low-fat diet on 5 dogs. Before starting the study, each dog was fed a different commercial diet over 5 weeks. After collecting pre-diet fecal samples, the anallergenic or low-fat diet was administered for 5 weeks. We then collected fecal samples and compared the pre- and post-diet fecal microbiomes. In the dogs on the anallergenic diet, we found significantly decreased proportions of Bacteroides, Ruminococcaceae, and Fusobacteriaceae, belonging to the phyla Bacteroidetes, Firmicutes, and Fusobacteria, respectively. The proportion of the genus Streptococcus belonging to the phylum Firmicutes was significantly increased upon administering the anallergenic diet. In the dogs on the low-fat diet, although the phyla Actinobacteria and Bacteroidetes tended to increase (p=0.116) and decrease (p=0.147) relative to the pre-diet levels, respectively, there were no significant differences in the proportions of any phylum between the pre- and post-diet fecal microbiomes. The anallergenic diet induced a significantly lower diversity index value than that found in the pre-diet period. Principal coordinate analysis based on unweighted UniFrac distance matrices revealed separation between the pre- and post-diet microbiomes in the dogs on the anallergenic diet. These results suggest that, even in pet dogs kept indoors in different living environments, unification of the diet induces apparent changes in the fecal microbiome.
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Affiliation(s)
- E Onozawa
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonan, Musashino, Tokyo 180-8602, Japan
| | - A Goto
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonan, Musashino, Tokyo 180-8602, Japan
| | - H Oda
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonan, Musashino, Tokyo 180-8602, Japan
| | - S Seki
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonan, Musashino, Tokyo 180-8602, Japan
| | - T Sako
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonan, Musashino, Tokyo 180-8602, Japan
| | - A Mori
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonan, Musashino, Tokyo 180-8602, Japan
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Fushimi K, Yasutomi J, Kusashio K, Matsumoto M, Suzuki T, Iida A, Furukawa A, Imamura N, Kuratsu S, Fujita A, Koguchi H, Hasegawa M, Oda H. [A Case of Internal Hernia into a Reconstructed Pelvic Floor and Torsion of Jejunum near the Treitz Ligament after Laparoscopic Abdominoperineal Resection]. Gan To Kagaku Ryoho 2021; 48:1550-1552. [PMID: 35046252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
A 50s women underwent laparoscopic abdominoperineal resection(APR)for rectal cancer. Laparotomy was performed on the 8th postoperative day because of intestinal obstruction. An internal hernia was observed at the pelvic floor and the hernia orifice was found at the retroperitoneum that was sutured in the initial operation. On the other hand, the jejunum near the Treitz ligament was twisted, resulting in ischemic necrosis. The reason of the internal hernia is considered that a suction drain placed during the initial operation may have caused the rupture of the fragile part of the sutured peritoneum. Furthermore, increase of intra-abdominal pressure due to the internal hernia may have exacerbated the torsion of the jejunum near the Treitz ligament. This is probably due to the failure to the adequate reposition of the small intestine at the end of the initial operation. There is no consensus of the need for retroperitoneal sutures for APR. Currently, we only spray anti-adhesion agents on the pelvic floor without retroperitoneal reconstruction. Although the mobilization of small intestine is important to provide a good operative view in laparoscopic colorectal surgery, it is also important to confirm the reposition of the small intestine at the end of surgery.
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Ruth SRA, Kim MG, Oda H, Wang Z, Khan Y, Chang J, Fox PM, Bao Z. Post-surgical wireless monitoring of arterial health progression. iScience 2021; 24:103079. [PMID: 34568798 PMCID: PMC8449246 DOI: 10.1016/j.isci.2021.103079] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 08/10/2021] [Accepted: 08/29/2021] [Indexed: 11/29/2022] Open
Abstract
Early detection of limb ischemia, strokes, and heart attacks may be enabled via long-term monitoring of arterial health. Early stenosis, decreased blood flow, and clots are common after surgical vascular bypass or plaque removal from a diseased vessel and can lead to the above diseases. Continuous arterial monitoring for the early diagnosis of such complications is possible by implanting a sensor during surgery that is wirelessly monitored by patients after surgery. Here, we report the design of a wireless capacitive sensor wrapped around the artery during surgery for continuous post-operative monitoring of arterial health. The sensor responds to diverse artery sizes and extents of occlusion in vitro to at least 20 cm upstream and downstream of the sensor. It demonstrated strong capability to monitor progression of arterial occlusion in human cadaver and small animal models. This technology is promising for wireless monitoring of arterial health for pre-symptomatic disease detection and prevention.
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Affiliation(s)
- Sara R A Ruth
- Department of Chemical Engineering, Stanford University, Stanford, CA, USA
| | - Min-Gu Kim
- Department of Chemical Engineering, Stanford University, Stanford, CA, USA
| | - Hiroki Oda
- Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, Stanford, CA, USA.,Division of Plastic Surgery, Veterans Affairs Palo Alto, Palo Alto, CA, USA
| | - Zhen Wang
- Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, Stanford, CA, USA.,Division of Plastic Surgery, Veterans Affairs Palo Alto, Palo Alto, CA, USA
| | - Yasser Khan
- Department of Chemical Engineering, Stanford University, Stanford, CA, USA
| | - James Chang
- Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, Stanford, CA, USA.,Division of Plastic Surgery, Veterans Affairs Palo Alto, Palo Alto, CA, USA
| | - Paige M Fox
- Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, Stanford, CA, USA.,Division of Plastic Surgery, Veterans Affairs Palo Alto, Palo Alto, CA, USA
| | - Zhenan Bao
- Department of Chemical Engineering, Stanford University, Stanford, CA, USA
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16
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Nishiguchi S, Oda H. Structural variability and dynamics in the ectodomain of an ancestral-type classical cadherin revealed by AFM imaging. J Cell Sci 2021; 134:269231. [PMID: 34152409 PMCID: PMC8325961 DOI: 10.1242/jcs.258388] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Accepted: 06/15/2021] [Indexed: 01/13/2023] Open
Abstract
Type III cadherin represents the ancestral form of classical cadherin in bilaterian metazoans. Drosophila possesses type III and type IVa cadherins, known as DN- and DE-cadherins, respectively. Mature DN- and DE-cadherins have 15 and 7 extracellular cadherin domain (EC) repeats, respectively, with DN-cadherin EC6–EC11 homologous to DE-cadherin EC1–EC6. These EC repeats contain predicted complete or partial Ca2+-free inter-EC linkers that potentially contribute to adhesion. Comparative structure–function studies of DN- and DE-cadherins may help us understand the ancestral and derived states of classical cadherin-mediated adhesion mechanisms. Here, using bead aggregation assays, we found that DN-cadherin EC1–EC11 and DE-cadherin EC1–EC6 exhibit Ca2+-dependent adhesive properties. Using high-speed atomic force microscopy (HS-AFM) imaging in solution, we show that both DN- and DE-cadherin ectodomains share a common morphological framework consisting of a strand-like and a globule-like portion. Furthermore, the DN-cadherin EC repeats are highly variable, flexible in morphology and have at least three bendable sites, one of which is located in EC6–EC11 and can act as a flexible hinge. Our findings provide insights into diversification of classical cadherin-mediated adhesion mechanisms. This article has an associated First Person interview with the first author of the paper. Summary: Atomic force microscopy imaging reveals that the ectodomain of an ancestral-type classical cadherin has a flexibly bendable strand-like portion responsible for homophilic adhesion.
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Affiliation(s)
- Shigetaka Nishiguchi
- Laboratory of Evolutionary Cell and Developmental Biology, JT Biohistory Research Hall, 1-1 Murasaki-cho, Takatsuki, Osaka 569-1125, Japan.,Department of Biological Sciences, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan.,R&D Group, Olympus Corporation, 2-3 Kuboyama-cho, Hachioji-shi, Tokyo 192-8512, Japan
| | - Hiroki Oda
- Laboratory of Evolutionary Cell and Developmental Biology, JT Biohistory Research Hall, 1-1 Murasaki-cho, Takatsuki, Osaka 569-1125, Japan.,Department of Biological Sciences, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
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Yurie H, Ikeguchi R, Aoyama T, Tanaka M, Oda H, Takeuchi H, Mitsuzawa S, Ando M, Yoshimoto K, Noguchi T, Akieda S, Nakayama K, Matsuda S. Bio 3D Conduits Derived from Bone Marrow Stromal Cells Promote Peripheral Nerve Regeneration. Cell Transplant 2021; 29:963689720951551. [PMID: 32830545 PMCID: PMC7784509 DOI: 10.1177/0963689720951551] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
We previously reported that a nerve conduit created from fibroblasts promotes nerve regeneration in a rat sciatic nerve model. This study aims to determine whether a nerve conduit created from bone marrow stromal cells (BMSCs) can promote nerve regeneration. Primary BMSCs were isolated from femur bone marrow of two Lewis rats, and cells at passages 4–7 were used. We created seven Bio 3D nerve conduits from BMSCs using a Bio-3D Printer. The conduits were transplanted to other Lewis rats to bridge 5-mm right sciatic nerve gaps (Bio 3D group, n = 7). We created two control groups: a silicone group (S group, n = 5) in which the same nerve gap was bridged with a silicone tube, and a silicone cell group (SC group, n = 5) in which the gap was bridged with a BMSC injection. Twelve weeks after transplantation, nerve regeneration was evaluated functionally and morphologically. In addition, PKH26-labeled BMSCs were used to fabricate a Bio 3D conduit that was transplanted for cell trafficking analysis. Electrophysiological study, kinematic analysis, wet muscle weight, and morphological parameters showed significantly better nerve regeneration in the Bio 3D group than in the S group or SC group. In immunohistochemical studies, sections from the Bio 3D group contained abundant S-100-positive cells. In cell trafficking analysis, PKH26-positive cells stained positive for the Schwann cell markers S-100, p75NTR, and GFAP. Bio 3D nerve conduits created from BMSCs can promote peripheral nerve regeneration in a rat sciatic nerve model through BMSC differentiation into Schwann-like cells.
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Affiliation(s)
- Hirofumi Yurie
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Ryosuke Ikeguchi
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Tomoki Aoyama
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Mai Tanaka
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Hiroki Oda
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Hisataka Takeuchi
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Sadaki Mitsuzawa
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Maki Ando
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Koichi Yoshimoto
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Takashi Noguchi
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | | | - Koichi Nakayama
- Department of Regenerative Medicine and Biomedical Engineering, 13030Saga University, Saga, Japan
| | - Shuichi Matsuda
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
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Oda H, Kihara K, Morimoto Y, Takeuchi S. Cell-Based Biohybrid Sensor Device for Chemical Source Direction Estimation. Cyborg and Bionic Systems 2021; 2021:8907148. [PMID: 36285129 PMCID: PMC9494699 DOI: 10.34133/2021/8907148] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Accepted: 12/31/2020] [Indexed: 02/03/2023] Open
Abstract
This paper describes a method to estimate the direction from which the signal molecule reaches the sensor by using living cells. In this context, biohybrid sensors that utilize a sophisticated sensing system of cells can potentially offer high levels of chemical-detection sensitivity and selectivity. However, biohybrid-sensor-based chemical-source-direction estimation has not received research attention because the cellular response to chemicals has not been examined in the context of directional information. In our approach, we fabricated a device that can limit the interface between the cell-laden hydrogel and the chemical solution of interest to enhance the time difference over which the chemical solution reaches the cells. Chemical detection by cells that express specific receptors is reflected as the fluorescence of the calcium indicator within the cells. Our device has eight chambers that each house 3D cell-laden collagen hydrogels facing circularly outward. The device also works as a cover to prevent chemicals from permeating the hydrogel from above. In our study, by observing the time course of the fluorescence emission of each chamber, we were able to successfully estimate the chemical-source direction within an error range of 7–13°. Our results suggest that a combination of microstructure devices embedded with living cells can be used to exploit cell functionalities to yield chemical-source directional information.
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Affiliation(s)
- H. Oda
- Department of Mechano-Informatics, Graduate School of Information Science and Technology, The University of Tokyo, Japan
| | - K. Kihara
- Department of Mechano-Informatics, Graduate School of Information Science and Technology, The University of Tokyo, Japan
| | - Y. Morimoto
- Department of Mechano-Informatics, Graduate School of Information Science and Technology, The University of Tokyo, Japan
| | - S. Takeuchi
- Department of Mechano-Informatics, Graduate School of Information Science and Technology, The University of Tokyo, Japan
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Matsumoto A, Tabata A, Ohkura K, Oda H, Kodama C, Ohkuni H, Takao A, Kikuchi K, Tomoyasu T, Nagamune H. Molecular characteristics of an adhesion molecule containing cholesterol-dependent cytolysin-motif produced by mitis group streptococci. Microbiol Immunol 2021; 65:61-75. [PMID: 33331679 DOI: 10.1111/1348-0421.12868] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Revised: 12/10/2020] [Accepted: 12/11/2020] [Indexed: 01/06/2023]
Abstract
Streptococcus pseudopneumoniae (SPpn) is a relatively new species closely related to S. pneumoniae (SPn) and S. mitis (SM) belonging to the Mitis group of the genus Streptococcus (MGS). Although genes encoding various pneumococcal virulence factors have been observed in the SPpn genome, the pathogenicity of SPpn against human, including the roles of virulence factor candidates, is still unclear. The present study focused on and characterized a candidate virulence factor previously reported in SPpn with deduced multiple functional domains, such as lipase domain, two lectin domains, and cholesterol-dependent cytolysin-related domain using various recombinant proteins. The gene was found not only in SPpn but also in the strains of SM and SPn. Moreover, the gene product was expressed in the gene-positive strains as secreted and cell-bound forms. The recombinant of gene product showed lipase activity and human cell-binding activity depending on the function of lectin domain(s), but no hemolytic activity. Thus, based on the distribution of the gene within the MGS and its molecular function, the gene product was named mitilectin (MLC) and its contribution to the potential pathogenicity of the MLC-producing strains was investigated. Consequently, the treatment with anti-MLC antibody and the mlc gene-knockout significantly reduced the human cell-binding activity of MLC-producing strains. Therefore, the multifunctional MLC was suggested to be important as an adhesion molecule in considering the potential pathogenicity of the MLC-producing strains belonging to MGS, such as SPpn and SM.
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Affiliation(s)
- Airi Matsumoto
- Department of Biological Science and Technology, Life System, Institute of Technology and Science, Tokushima University Graduate School, Tokushima, Tokushima, Japan
| | - Atsushi Tabata
- Department of Biological Science and Technology, Life System, Institute of Technology and Science, Tokushima University Graduate School, Tokushima, Tokushima, Japan.,Department of Bioengineering, Division of Bioscience and Bioindustry, Graduate School of Technology, Industrial and Social Sciences, Tokushima University Graduate School, Tokushima, Tokushima, Japan.,Department of Bioengineering, Faculty of Bioscience and Bioindustry, Tokushima University, Tokushima, Tokushima, Japan
| | - Kazuto Ohkura
- Division of Clinical Pharmacy and Pharmaceutical Sciences, Graduate School of Pharmaceutical Sciences, Suzuka University of Medical Science, Suzuka, Mie, Japan
| | - Hiroki Oda
- Department of Bioengineering, Faculty of Bioscience and Bioindustry, Tokushima University, Tokushima, Tokushima, Japan
| | - Chihiro Kodama
- Department of Biological Science and Technology, Life System, Institute of Technology and Science, Tokushima University Graduate School, Tokushima, Tokushima, Japan
| | - Hisashi Ohkuni
- Health Science Research Institute East Japan, Kounosu, Saitama, Japan
| | - Ayuko Takao
- Department of Oral Microbiology, School of Dental Medicine, Tsurumi University, Yokohama, Kanagawa, Japan
| | - Ken Kikuchi
- Department of Infectious Diseases, Tokyo Women's Medical University, Shinjyuku-ku, Tokyo, Japan
| | - Toshifumi Tomoyasu
- Department of Biological Science and Technology, Life System, Institute of Technology and Science, Tokushima University Graduate School, Tokushima, Tokushima, Japan.,Department of Bioengineering, Division of Bioscience and Bioindustry, Graduate School of Technology, Industrial and Social Sciences, Tokushima University Graduate School, Tokushima, Tokushima, Japan.,Department of Bioengineering, Faculty of Bioscience and Bioindustry, Tokushima University, Tokushima, Tokushima, Japan
| | - Hideaki Nagamune
- Department of Biological Science and Technology, Life System, Institute of Technology and Science, Tokushima University Graduate School, Tokushima, Tokushima, Japan.,Department of Bioengineering, Division of Bioscience and Bioindustry, Graduate School of Technology, Industrial and Social Sciences, Tokushima University Graduate School, Tokushima, Tokushima, Japan.,Department of Bioengineering, Faculty of Bioscience and Bioindustry, Tokushima University, Tokushima, Tokushima, Japan
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20
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Franklin A, Gi Min J, Oda H, Kaizawa Y, Leyden J, Wang Z, Chang J, Fox PM. Homing of Adipose-Derived Stem Cells to a Tendon-Derived Hydrogel: A Potential Mechanism for Improved Tendon-Bone Interface and Tendon Healing. J Hand Surg Am 2020; 45:1180.e1-1180.e12. [PMID: 32605739 DOI: 10.1016/j.jhsa.2020.05.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2019] [Revised: 01/29/2020] [Accepted: 05/07/2020] [Indexed: 02/02/2023]
Abstract
PURPOSE Tendons are difficult to heal owing to their hypocellularity and hypovascularity. Our laboratory has developed a tendon-derived hydrogel (tHG) that significantly improves tendon healing in an animal model. We hypothesized that a potential mechanism for improved healing with tHG is through the attraction of systemic stem cells. METHODS Homing of systemic adipose-derived stem cells (ADSCs) to tendon injuries was assessed with acute and chronic injury models. Injury sites were treated with saline or tHG, and animals given a tail vein injection (TVI) of labeled ADSCs 1 week after treatment. One week following TVI, rats were harvested for histology. To further evaluate a potential difference in homing to tHG, a subcutaneous injection (SQI) model was used. Rats were treated with an SQI of saline, silicone, ADSCs in media, tHG, tHG + fibroblasts (FBs), or tHG + ADSCs on day 0. One week after SQI, rats underwent TVI with labeled ADSCs. Samples were harvested 2 or 3 weeks after SQI for analysis. Flow cytometry confirmed homing in the SQI model. RESULTS Systemically delivered ADSCs homed to both acute tendon and chronic tendon-bone interface (TBI) injury sites. Despite their presence at the injury site, there was no difference in the number of macrophages, amount of cell proliferation, or angiogenesis 1 week after stem cell delivery. In an SQI model, ADSCs homed to tHG. There was no difference in the number of ADSCs homing to tHG alone versus tHG + ADSCs. However, there was an increase in the number of living cells, general immune cells, and T-cells present at tHG + ADSC versus tHG alone. CONCLUSIONS The ADSCs home to tendon injury sites and tHG. We believe the attraction of additional systemic ADSCs is one mechanism for improved tendon and TBI healing with tHG. CLINICAL RELEVANCE Treatment of tendon and TBI injuries with tHG can augment healing via homing of systemic stem cells.
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Affiliation(s)
- Austin Franklin
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University Medical Center, Palo Alto, CA; Division of Plastic and Reconstructive Surgery, Veterans Affairs Palo Alto Health Care System, Palo Alto, CA
| | - Jung Gi Min
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University Medical Center, Palo Alto, CA; Division of Plastic and Reconstructive Surgery, Veterans Affairs Palo Alto Health Care System, Palo Alto, CA
| | - Hiroki Oda
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University Medical Center, Palo Alto, CA; Division of Plastic and Reconstructive Surgery, Veterans Affairs Palo Alto Health Care System, Palo Alto, CA
| | - Yukitoshi Kaizawa
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University Medical Center, Palo Alto, CA; Division of Plastic and Reconstructive Surgery, Veterans Affairs Palo Alto Health Care System, Palo Alto, CA
| | - Jacinta Leyden
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University Medical Center, Palo Alto, CA; Division of Plastic and Reconstructive Surgery, Veterans Affairs Palo Alto Health Care System, Palo Alto, CA
| | - Zhen Wang
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University Medical Center, Palo Alto, CA; Division of Plastic and Reconstructive Surgery, Veterans Affairs Palo Alto Health Care System, Palo Alto, CA
| | - James Chang
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University Medical Center, Palo Alto, CA; Division of Plastic and Reconstructive Surgery, Veterans Affairs Palo Alto Health Care System, Palo Alto, CA
| | - Paige M Fox
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University Medical Center, Palo Alto, CA; Division of Plastic and Reconstructive Surgery, Veterans Affairs Palo Alto Health Care System, Palo Alto, CA.
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Min JG, Sanchez Rangel UJ, Franklin A, Oda H, Wang Z, Chang J, Fox PM. Topical Antibiotic Elution in a Collagen-Rich Hydrogel Successfully Inhibits Bacterial Growth and Biofilm Formation In Vitro. Antimicrob Agents Chemother 2020; 64:e00136-20. [PMID: 32690648 PMCID: PMC7508589 DOI: 10.1128/aac.00136-20] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 07/01/2020] [Indexed: 01/24/2023] Open
Abstract
Chronic wounds are a prominent concern, accounting for $25 billion of health care costs annually. Biofilms have been implicated in delayed wound closure, but they are susceptible to developing antibiotic resistance and treatment options continue to be limited. A novel collagen-rich hydrogel derived from human extracellular matrix presents an avenue for treating chronic wounds by providing appropriate extracellular proteins for healing and promoting neovascularization. Using the hydrogel as a delivery system for localized secretion of a therapeutic dosage of antibiotics presents an attractive means of maximizing delivery while minimizing systemic side effects. We hypothesize that the hydrogel can provide controlled elution of antibiotics leading to inhibition of bacterial growth and disruption of biofilm formation. The rate of antibiotic elution from the collagen-rich hydrogel and the efficacy of biofilm disruption was assessed with Pseudomonas aeruginosa Bacterial growth inhibition, biofilm disruption, and mammalian cell cytotoxicity were quantified using in vitro models. The antibiotic-loaded hydrogel showed sustained release of antibiotics for up to 24 h at therapeutic levels. The treatment inhibited bacterial growth and disrupted biofilm formation at multiple time points. The hydrogel was capable of accommodating various classes of antibiotics and did not result in cytotoxicity in mammalian fibroblasts or adipose stem cells. The antibiotic-loaded collagen-rich hydrogel is capable of controlled antibiotic release effective for bacteria cell death without native cell death. A human-derived hydrogel that is capable of eluting therapeutic levels of antibiotic is an exciting prospect in the field of chronic wound healing.
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Affiliation(s)
- Jung Gi Min
- Division of Plastic & Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, California, USA
- Division of Plastic & Reconstructive Surgery, Veterans Affairs Palo Alto Health Care System, Palo Alto, California, USA
| | - Uriel J Sanchez Rangel
- Division of Plastic & Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, California, USA
- Division of Plastic & Reconstructive Surgery, Veterans Affairs Palo Alto Health Care System, Palo Alto, California, USA
| | - Austin Franklin
- Division of Plastic & Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, California, USA
- Division of Plastic & Reconstructive Surgery, Veterans Affairs Palo Alto Health Care System, Palo Alto, California, USA
| | - Hiroki Oda
- Division of Plastic & Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, California, USA
- Division of Plastic & Reconstructive Surgery, Veterans Affairs Palo Alto Health Care System, Palo Alto, California, USA
| | - Zhen Wang
- Division of Plastic & Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, California, USA
- Division of Plastic & Reconstructive Surgery, Veterans Affairs Palo Alto Health Care System, Palo Alto, California, USA
| | - James Chang
- Division of Plastic & Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, California, USA
- Division of Plastic & Reconstructive Surgery, Veterans Affairs Palo Alto Health Care System, Palo Alto, California, USA
| | - Paige M Fox
- Division of Plastic & Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, California, USA
- Division of Plastic & Reconstructive Surgery, Veterans Affairs Palo Alto Health Care System, Palo Alto, California, USA
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22
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Yurie H, Ikeguchi R, Aoyama T, Ito A, Tanaka M, Noguchi T, Oda H, Takeuchi H, Mitsuzawa S, Ando M, Yoshimoto K, Akieda S, Nakayama K, Matsuda S. Mechanism of Peripheral Nerve Regeneration Using a Bio 3D Conduit Derived from Normal Human Dermal Fibroblasts. J Reconstr Microsurg 2020; 37:357-364. [PMID: 32957155 DOI: 10.1055/s-0040-1716855] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
BACKGROUND We previously reported the development of a scaffold-free Bio three-dimensional (3D) nerve conduit from normal human dermal fibroblasts (NHDFs). The aim of this study was to investigate the regenerative mechanism of peripheral nerve cells using a Bio 3D conduit in a rat sciatic nerve defect model. METHODS Bio 3D conduits composed of NHDFs were developed, and cell viability was evaluated using a LIVE/DEAD cell viability assay immediately before transplantation and 1-week post-surgery. Tracking analysis using PKH26-labeled NHDFs was performed to assess the distribution of NHDFs within the regenerated nerve and the differentiation of NHDFs into functional Schwann cells (SCs). RESULTS The assessment of the viability of cells within the Bio 3D conduit showed high cell viability both immediately before transplantation and 1-week post-surgery (88.56 ± 1.70 and 87.58 ± 9.11, respectively). A modified Masson's trichrome staining of the Bio 3D conduit revealed the formation of a prominent extracellular matrix (ECM) in between the cells. We observed, via tracking analysis, that the tube-like distribution of the NHDFs remained stable, the majority of the regenerated axons had penetrated this structure and PKH26-labeled cells were also positive for S-100. CONCLUSION Abundant ECM formation resulted in a stable tube-like structure of the Bio 3D conduit with high cell viability. NHDFs in the Bio 3D conduit have the potential to differentiate into SCs-like cells.
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Affiliation(s)
- Hirofumi Yurie
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Ryosuke Ikeguchi
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Tomoki Aoyama
- Department of Physical Therapy, Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Akira Ito
- Department of Physical Therapy, Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Mai Tanaka
- Department of Physical Therapy, Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Takashi Noguchi
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Hiroki Oda
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Hisataka Takeuchi
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Sadaki Mitsuzawa
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Maki Ando
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Koichi Yoshimoto
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | | | - Koichi Nakayama
- Department of Regenerative Medicine and Biomedical Engineering Faculty of Medicine, Saga University, Saga, Japan
| | - Shuichi Matsuda
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
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23
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Akiyama-Oda Y, Oda H. Hedgehog signaling controls segmentation dynamics and diversity via msx1 in a spider embryo. Sci Adv 2020; 6:6/37/eaba7261. [PMID: 32917677 DOI: 10.1126/sciadv.aba7261] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Accepted: 07/24/2020] [Indexed: 06/11/2023]
Abstract
Hedgehog (Hh) signaling plays fundamental roles in animal body patterning. Understanding its mechanistic complexity requires simple tractable systems that can be used for these studies. In the early spider embryo, Hh signaling mediates the formation of overall anterior-posterior polarity, yet it remains unclear what mechanisms link the initial Hh signaling activity with body axis segmentation, in which distinct periodic stripe-forming dynamics occur depending on the body region. We performed genome-wide searches for genes that transcriptionally respond to altered states of Hh signaling. Characterization of genes negatively regulated by Hh signaling suggested that msx1, encoding a conserved transcription factor, functions as a key segmentation gene. Knockdown of msx1 prevented all dynamic processes causing spatial repetition of stripes, including temporally repetitive oscillations and bi-splitting, and temporally nonrepetitive tri-splitting. Thus, Hh signaling controls segmentation dynamics and diversity via msx1 These genome-wide data from an invertebrate illuminate novel mechanistic features of Hh-based patterning.
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Affiliation(s)
- Yasuko Akiyama-Oda
- Laboratory of Evolutionary Cell and Developmental Biology, JT Biohistory Research Hall, Takatsuki, Osaka, Japan.
- Microbiology and Infection Control, Osaka Medical College, Takatsuki, Osaka, Japan
| | - Hiroki Oda
- Laboratory of Evolutionary Cell and Developmental Biology, JT Biohistory Research Hall, Takatsuki, Osaka, Japan
- Department of Biological Sciences, Graduate School of Science, Osaka University, Toyonaka, Osaka, Japan
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24
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Yamada M, Okada S, Oda H, Nakajima Y, C Bastie C, Kasai Y, Osaki A, Shimoda Y, Shibusawa R, Uehara R, Saito T, Ozawa A, Yamada E. Evaluation of the relationship between glycated hemoglobin A1c and mean glucose levels derived from the professional continuous flash glucose monitoring system. Endocr J 2020; 67:531-536. [PMID: 32023560 DOI: 10.1507/endocrj.ej19-0502] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Previously, we reported that short-term continuous glucose monitoring (CGM) with the professional iPro2© CGM device is a good clinical indicator of glycated hemoglobin (HbA1c) levels. However, there was no significant correlation between CGM and HbA1c levels when HbA1c levels were >8.0%. To further investigate this issue, we performed a similar study using the FreeStyle Libre Pro©, a newer device that does not require glucose calibration and allows patients to be examined for up to 14 days. Fifty-nine patients (68% women, 32% men) were examined. Twenty-eight and 31 patients presented with type 1 and type 2 diabetes, respectively. Clinically assessed HbA1c levels were compared to blood glucose levels determined by the FreeStyle Libre Pro© for up to 14 days (10.7 ± 3.7 days). We found a significant correlation between HbA1c and CGM levels even when HbA1c levels were >8.0%. Additionally, the correlation between HbA1c and average glucose was identified with the modern CGM and was found to deviate substantially from the new suggested formula. More importantly, we found a more robust correlation between HbA1c and CGM levels in patients with type 2 diabetes. Overestimation or underestimation of blood glucose levels through CGM might increase the risks of inappropriate clinical treatment of diabetes patients. Our results indicate the need for proper CGM data interpretation individualized for each patient to better assist the determination of customized treatments for patients.
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Affiliation(s)
- Masanobu Yamada
- Department of Medicine and Molecular Science, Gunma University Graduate School of Medicine, Maebashi, Gunma 371-8511, Japan
| | - Shuichi Okada
- Department of Medicine and Molecular Science, Gunma University Graduate School of Medicine, Maebashi, Gunma 371-8511, Japan
| | - Hiroki Oda
- Faculty of Medicine, Gunma University School of Medicine, Maebashi, Gunma 371-8511, Japan
| | - Yasuyo Nakajima
- Department of Medicine and Molecular Science, Gunma University Graduate School of Medicine, Maebashi, Gunma 371-8511, Japan
| | - Claire C Bastie
- Division of Biomedical Sciences, Warwick Medical School, Coventry CV4 7AL, United Kingdom
| | - Yuko Kasai
- Department of Medicine and Molecular Science, Gunma University Graduate School of Medicine, Maebashi, Gunma 371-8511, Japan
| | - Aya Osaki
- Department of Medicine and Molecular Science, Gunma University Graduate School of Medicine, Maebashi, Gunma 371-8511, Japan
| | - Yoko Shimoda
- Department of Medicine and Molecular Science, Gunma University Graduate School of Medicine, Maebashi, Gunma 371-8511, Japan
| | - Ryo Shibusawa
- Department of Medicine and Molecular Science, Gunma University Graduate School of Medicine, Maebashi, Gunma 371-8511, Japan
| | - Ryota Uehara
- Department of Medicine and Molecular Science, Gunma University Graduate School of Medicine, Maebashi, Gunma 371-8511, Japan
| | - Tsugumichi Saito
- Department of Medicine and Molecular Science, Gunma University Graduate School of Medicine, Maebashi, Gunma 371-8511, Japan
| | - Atsushi Ozawa
- Department of Medicine and Molecular Science, Gunma University Graduate School of Medicine, Maebashi, Gunma 371-8511, Japan
| | - Eijiro Yamada
- Department of Medicine and Molecular Science, Gunma University Graduate School of Medicine, Maebashi, Gunma 371-8511, Japan
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25
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Ueda S, Chen-Yoshikawa T, Mineura K, Yamanashi K, Oda H, Yokoyama Y, Ikeda M, Tokuno J, Kayawake H, Yamagishi H, Gochi F, Okabe R, Tanaka S, Yamada Y, Nakajima D, Ohsumi A, Hamaji M, Date H. Protective Effects of Necrosulfonamide on Ischemia-Reperfusion Injury in Rat Lung. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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26
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Abstract
The common house spider Parasteatoda tepidariorum, belonging to the Chelicerata in the phylum Arthropoda, has emerged as an experimental system for studying mechanisms of development from an evolutionary standpoint. In this article, we review the distinct characteristics of P. tepidariorum, the major research questions relevant to this organism, and the available key methods and resources. P. tepidariorum has a relatively short lifecycle and, once mated, periodically lays eggs. The morphogenetic field of the P. tepidariorum embryo is cellular from an early stage and exhibits stepwise symmetry-breaking events and stripe-forming processes that are associated with body axes formation and segmentation, respectively, before reaching the arthropod phylotypic stage. Self-regulatory capabilities of the embryonic field are a prominent feature in P. tepidariorum. The mechanisms and logic underlying the evolvability of heritable patterning systems at the phylum level could be one of the major avenues of research investigated using this animal. The sequenced genome reveals whole genome duplication (WGD) within chelicerates, which offers an invertebrate platform for investigating the potential roles of WGD in animal diversification and evolution. The development and evolution of lineage-specific organs, including the book lungs and the union of spinnerets and silk glands, are attractive subjects of study. Studies using P. tepidariorum can benefit from the use of parental RNA interference, microinjection applications (including cell labeling and embryonic RNA interference), multicolor fluorescence in situ hybridization, and laser ablation as well as rich genomic and transcriptomic resources. These techniques enable functional gene discoveries and the uncovering of cellular and molecular insights.![]()
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Affiliation(s)
- Hiroki Oda
- 1Laboratory of Evolutionary Cell and Developmental Biology, JT Biohistory Research Hall, 1-1 Murasaki-cho, Takatsuki, Osaka 569-1125 Japan.,2Department of Biological Sciences, Graduate School of Science, Osaka University, Toyonaka, Osaka Japan
| | - Yasuko Akiyama-Oda
- 1Laboratory of Evolutionary Cell and Developmental Biology, JT Biohistory Research Hall, 1-1 Murasaki-cho, Takatsuki, Osaka 569-1125 Japan.,3Microbiology and Infection Control, Osaka Medical College, Takatsuki, Osaka Japan
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27
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Oda H, Iwasaki-Yokozawa S, Usui T, Akiyama-Oda Y. Experimental duplication of bilaterian body axes in spider embryos: Holm's organizer and self-regulation of embryonic fields. Dev Genes Evol 2020; 230:49-63. [PMID: 30972574 PMCID: PMC7128006 DOI: 10.1007/s00427-019-00631-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Accepted: 03/20/2019] [Indexed: 12/20/2022]
Abstract
Bilaterally symmetric body plans of vertebrates and arthropods are defined by a single set of two orthogonal axes, the anterior-posterior (or head-tail) and dorsal-ventral axes. In vertebrates, and especially amphibians, complete or partial doubling of the bilaterian body axes can be induced by two different types of embryological manipulations: transplantation of an organizer region or bi-sectioning of an embryo. Such axis doubling relies on the ability of embryonic fields to flexibly respond to the situation and self-regulate toward forming a whole body. This phenomenon has facilitated experimental efforts to investigate the mechanisms of vertebrate body axes formation. However, few studies have addressed the self-regulatory capabilities of embryonic fields associated with body axes formation in non-vertebrate bilaterians. The pioneer spider embryologist Åke Holm reported twinning of spider embryos induced by both types of embryological manipulations in 1952; yet, his experiments have not been replicated by other investigators, and access to spider or non-vertebrate twins has been limited. In this review, we provide a historical background on twinning experiments in spiders, and an overview of current twinning approaches in familiar spider species and related molecular studies. Moreover, we discuss the benefits of the spider model system for a deeper understanding of the ancestral mechanisms of body axes formation in arthropods, as well as in bilaterians.
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Affiliation(s)
- Hiroki Oda
- Laboratory of Evolutionary Cell and Developmental Biology, JT Biohistory Research Hall, 1-1 Murasaki-cho, Takatsuki, Osaka, 569-1125, Japan.
- Department of Biological Sciences, Graduate School of Science, Osaka University, Toyonaka, Osaka, Japan.
| | - Sawa Iwasaki-Yokozawa
- Laboratory of Evolutionary Cell and Developmental Biology, JT Biohistory Research Hall, 1-1 Murasaki-cho, Takatsuki, Osaka, 569-1125, Japan
| | | | - Yasuko Akiyama-Oda
- Laboratory of Evolutionary Cell and Developmental Biology, JT Biohistory Research Hall, 1-1 Murasaki-cho, Takatsuki, Osaka, 569-1125, Japan
- Microbiology and Infection Control, Osaka Medical College, Takatsuki, Osaka, Japan
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28
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Leite DJ, Baudouin-Gonzalez L, Iwasaki-Yokozawa S, Lozano-Fernandez J, Turetzek N, Akiyama-Oda Y, Prpic NM, Pisani D, Oda H, Sharma PP, McGregor AP. Homeobox Gene Duplication and Divergence in Arachnids. Mol Biol Evol 2020; 35:2240-2253. [PMID: 29924328 PMCID: PMC6107062 DOI: 10.1093/molbev/msy125] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Homeobox genes are key toolkit genes that regulate the development of metazoans and changes in their regulation and copy number have contributed to the evolution of phenotypic diversity. We recently identified a whole genome duplication (WGD) event that occurred in an ancestor of spiders and scorpions (Arachnopulmonata), and that many homeobox genes, including two Hox clusters, appear to have been retained in arachnopulmonates. To better understand the consequences of this ancient WGD and the evolution of arachnid homeobox genes, we have characterized and compared the homeobox repertoires in a range of arachnids. We found that many families and clusters of these genes are duplicated in all studied arachnopulmonates (Parasteatoda tepidariorum, Pholcus phalangioides, Centruroides sculpturatus, and Mesobuthus martensii) compared with nonarachnopulmonate arachnids (Phalangium opilio, Neobisium carcinoides, Hesperochernes sp., and Ixodes scapularis). To assess divergence in the roles of homeobox ohnologs, we analyzed the expression of P. tepidariorum homeobox genes during embryogenesis and found pervasive changes in the level and timing of their expression. Furthermore, we compared the spatial expression of a subset of P. tepidariorum ohnologs with their single copy orthologs in P. opilio embryos. We found evidence for likely subfunctionlization and neofunctionalization of these genes in the spider. Overall our results show a high level of retention of homeobox genes in spiders and scorpions post-WGD, which is likely to have made a major contribution to their developmental evolution and diversification through pervasive subfunctionlization and neofunctionalization, and paralleling the outcomes of WGD in vertebrates.
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Affiliation(s)
- Daniel J Leite
- Department of Biological and Medical Sciences, Oxford Brookes University, Oxford, United Kingdom
| | - Luís Baudouin-Gonzalez
- Department of Biological and Medical Sciences, Oxford Brookes University, Oxford, United Kingdom
| | | | - Jesus Lozano-Fernandez
- School of Earth Sciences, University of Bristol, Life Sciences Building, Bristol, United Kingdom.,School of Biological Sciences, University of Bristol, Life Sciences Building, Bristol, United Kingdom
| | - Natascha Turetzek
- Department of Cellular Neurobiology, Johann-Friedrich-Blumenbach Institute for Zoology and Anthropology, Georg-August-University, Göttingen, Germany
| | - Yasuko Akiyama-Oda
- JT Biohistory Research Hall, Takatsuki, Osaka, Japan.,Microbiology and Infection Control, Osaka Medical College, Takatsuki, Osaka, Japan
| | - Nikola-Michael Prpic
- Department of Cellular Neurobiology, Johann-Friedrich-Blumenbach Institute for Zoology and Anthropology, Georg-August-University, Göttingen, Germany
| | - Davide Pisani
- School of Earth Sciences, University of Bristol, Life Sciences Building, Bristol, United Kingdom.,School of Biological Sciences, University of Bristol, Life Sciences Building, Bristol, United Kingdom
| | - Hiroki Oda
- JT Biohistory Research Hall, Takatsuki, Osaka, Japan.,Department of Biological Sciences, Graduate School of Science, Osaka University, Osaka, Japan
| | - Prashant P Sharma
- Department of Integrative Biology, University of Wisconsin-Madison, Madison, WI, USA
| | - Alistair P McGregor
- Department of Biological and Medical Sciences, Oxford Brookes University, Oxford, United Kingdom
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29
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Oda H, Akiyama-Oda Y. Dataset on gene expressions affected by simultaneous knockdown of Hedgehog and Dpp signaling components in embryos of the spider Parasteatoda tepidariorum. Data Brief 2020; 28:105088. [PMID: 32226819 PMCID: PMC7096682 DOI: 10.1016/j.dib.2019.105088] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 12/14/2019] [Accepted: 12/24/2019] [Indexed: 01/08/2023] Open
Abstract
Simultaneous, parental RNA interference (pRNAi) mediated knockdown of Hedgehog and Decapentaplegic (Dpp) signaling components, Pt-patched (Pt-ptc) and Pt-dpp, respectively, exhibited serious defects in the formation of the major embryonic axes in the model spider Parasteatoda tepidariorum. This paper describes a dataset of a custom oligonucleotide two-color microarray analysis that was carried out to compare the transcript expression levels between untreated (normal) and Pt-ptc + Pt-dpp double pRNAi embryos at late stage 5. Array spots that showed the intensity ratio of [Pt-ptc + Pt-dpp double pRNAi]/[normal] <0.6 were categorized as positive. The expressions of most, not all, of the transcripts related to the positive array spots were examined in embryos by whole-mount in situ hybridization. Some of the stained embryos showed distinct patterns of gene expression. The data presented may be useful for characterizing the mechanisms of embryonic patterning in spider embryos.
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Affiliation(s)
- Hiroki Oda
- Laboratory of Evolutionary Cell and Developmental Biology, JT Biohistory Research Hall, 1-1 Murasaki-cho, Takatsuki, Osaka, 569-1125, Japan
- Laboratory of Biohistory, Department of Biological Sciences, Graduate School of Science, Osaka University, Japan
| | - Yasuko Akiyama-Oda
- Laboratory of Evolutionary Cell and Developmental Biology, JT Biohistory Research Hall, 1-1 Murasaki-cho, Takatsuki, Osaka, 569-1125, Japan
- Microbiology and Infection Control, Osaka Medical College, Takatsuki, Osaka, Japan
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30
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Tsuchida K, Tanaka K, Nakano K, Akagawa R, Oyanagi N, Ishizuka M, Hakamata T, Hosaka Y, Takahashi K, Oda H. P10 A possible link between sarcopenia and major bleeding risk among patients with atrial fibrillation treated with oral anticoagulation undergoing coronary stenting. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehz872.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background/Introduction
In patients with atrial fibrillation (AF) undergoing percutaneous coronary intervention (PCI) with stent implantation, oral anticoagulation (OAC) plus dual antiplatelet therapy (DAPT) increases the risk of bleeding. The PRECISE-DAPT (P-DAPT) and DAPT scores were created to predict increased bleeding versus ischemic risk in patients undergoing DAPT. However, not much information is available on predicting bleeding risk associated with OAC concomitant with DAPT in patients with AF treated with coronary stents. Physical frailty or sarcopenia is considered an emerging predictor for bleeding in AF patients.
Purpose
To investigate the relationship between skeletal muscle mass and major bleeding risk in AF patients undergoing PCI and subsequent OAC and DAPT.
Methods
A total of 1,234 consecutive patients after PCI using newer-generation drug eluting stents were evaluated. An anti-thrombotic regimen without OAC was given to 1,077 patients, whereas OAC was required in 157 patients (12.7%) including AF (n = 96). The P-DAPT, DAPT, and HAS-BLED scores were calculated for each of the patients. Any out-of-hospital major bleeding events were identified based on BARC criteria during a median follow-up of 2.9 years. The fat-free mass index (FFMI; kg/m2) was calculated to evaluate skeletal muscle mass as follows: (7.38 + 0.02908 × urinary creatinine (mg/day)) / (height squared (m2)). A Cox proportional hazards model was used to test the significance of the FFMI and these risk scores as predictors of major bleeding, defined as BARC 3 or 5 events in AF patients. The receiver operating characteristic curve (ROC) analyses were used to examine the predictive ability of the FFMI and these scores to identify patients with major bleeding events.
Results
Major bleeding events were observed in 9 (9.3%) patients. Major bleeding was associated with a lower FFMI (hazard ratio [HR] 0.53; 95% confidence interval [CI] 0.36-0.79; p = 0.002), and higher P-DAPT score (HR, 1.07; 95% CI, 1.02-1.11; p = 0.003), but not with the DAPT (HR, 0.71; 95% CI, 0.45-1.12; p = 0.147) and the HAS-BLED score (HR, 1.00; 95% CI, 0.48-2.09; p = 0.990). In the non-OAC cohort, major bleeding was related to a higher P-DAPT score (HR, 1.05; 95% CI, 1.02-1.07; p < 0.0001), but the FFMI (HR, 0.89; 95% CI, 0.73-1.09; p = 0.265) and the DAPT score were not correlated. C-statistics for major bleeding events were 0.82 (95% CI, 0.71-0.93, p = 0.001) for the FFMI and 0.79 (95% CI, 0.68-0.90, p = 0.004) for the P-DAPT score.
Conclusions
Assessment of the FFMI for screening sarcopenia is useful to predict major bleedings specifically in patients with AF undergoing coronary stenting. Both the FFMI and P-DAPT could successfully predict major bleedings in AF patients after PCI. Whether novel bleeding risk scores combined with measuring body composition adequately identify high risk patients needs to be validated.
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Affiliation(s)
- K Tsuchida
- Niigata City General Hospital, Niigata, Japan
| | - K Tanaka
- Niigata City General Hospital, Niigata, Japan
| | - K Nakano
- Niigata City General Hospital, Niigata, Japan
| | - R Akagawa
- Niigata City General Hospital, Niigata, Japan
| | - N Oyanagi
- Niigata City General Hospital, Niigata, Japan
| | - M Ishizuka
- Niigata City General Hospital, Niigata, Japan
| | - T Hakamata
- Niigata City General Hospital, Niigata, Japan
| | - Y Hosaka
- Niigata City General Hospital, Niigata, Japan
| | - K Takahashi
- Niigata City General Hospital, Niigata, Japan
| | - H Oda
- Niigata City General Hospital, Niigata, Japan
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Takeuchi H, Sakamoto A, Ikeguchi R, Ota S, Oda H, Yurie H, Mitsuzawa S, Matsuda S. Erratum: Doxorubicin-Immersed Skeletal Muscle Grafts Promote Peripheral Nerve Regeneration Across a 10-mm Defect in the Rat Sciatic Nerve. J Reconstr Microsurg 2019; 36:e1-e2. [PMID: 31766061 DOI: 10.1055/s-0039-3400529] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Hisataka Takeuchi
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Akio Sakamoto
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Ryosuke Ikeguchi
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Soichi Ota
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Hiroki Oda
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Hirofumi Yurie
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Sadaki Mitsuzawa
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Shuichi Matsuda
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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Takeuchi H, Ikeguchi R, Aoyama T, Oda H, Yurie H, Mitsuzawa S, Tanaka M, Ohta S, Akieda S, Miyazaki Y, Nakayama K, Matsuda S. A scaffold-free Bio 3D nerve conduit for repair of a 10-mm peripheral nerve defect in the rats. Microsurgery 2019; 40:207-216. [PMID: 31724780 DOI: 10.1002/micr.30533] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 08/13/2019] [Accepted: 10/25/2019] [Indexed: 12/28/2022]
Abstract
INTRODUCTION A Bio 3D printed nerve conduit was reported to promote nerve regeneration in a 5 mm nerve gap model. The purpose of this study was to fabricate Bio 3D nerve conduits suitable for a 10 mm nerve gap and to evaluate their capacity for nerve regeneration in a rat sciatic nerve defect model. MATERIALS AND METHODS Eighteen F344 rats with immune deficiency (9-10 weeks old; weight, 200-250 g) were divided into three groups: a Bio 3D nerve conduit group (Bio 3D, n = 6), a nerve graft group (NG, n = 6), and a silicon tube group (ST, n = 6). A 12-mm Bio 3D nerve conduit or silicon tube was transplanted into the 10-mm defect of the right sciatic nerve. In the nerve graft group, reverse autografting was performed with an excised 10-mm nerve segment. Assessments were performed at 8 weeks after the surgery. RESULTS In the region distal to the suture site, the number of myelinated axons in the Bio 3D group were significantly larger compared with the silicon group (2,548 vs. 950, p < .05). The myelinated axon diameter (MAD) and the myelin thickness (MT) of the regenerated axons in the Bio 3D group were significantly larger compared with those of the ST group (MAD: 3.09 vs. 2.36 μm; p < .01; MT: 0.59 vs. 0.40 μm, p < .01). CONCLUSIONS This study indicates that a Bio 3D nerve conduit can enhance peripheral nerve regeneration even in a 10 mm nerve defect model.
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Affiliation(s)
- Hisataka Takeuchi
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Ryosuke Ikeguchi
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Tomoki Aoyama
- Department of Physical Therapy, Human Health Science, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Hiroki Oda
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Hirofumi Yurie
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Sadaki Mitsuzawa
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Mai Tanaka
- Department of Physical Therapy, Human Health Science, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Souichi Ohta
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | | | | | - Koichi Nakayama
- Department of Regenerative Medicine and Biomedical Engineering Faculty of Medicine, Saga University, Saga, Japan
| | - Shuichi Matsuda
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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Oda H, Beker L, Kaizawa Y, Franklin A, Min JG, Leyden J, Wang Z, Chang J, Bao Z, Fox PM. A Novel Technology for Free Flap Monitoring: Pilot Study of a Wireless, Biodegradable Sensor. J Reconstr Microsurg 2019; 36:182-190. [PMID: 31675757 DOI: 10.1055/s-0039-1700539] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
BACKGROUND Accurate monitoring of free flap perfusion after complex reconstruction is critical for early recognition of flap compromise. Surgeons use a variety of subjective and objective measures to evaluate flap perfusion postoperatively. However, these measures have some limitations. We have developed a wireless, biodegradable, and flexible sensor that can be applied to real-time postoperative free flap monitoring. Here we assess the biocompatibility and function of our novel sensor. METHODS Seven Sprague-Dawley (SD) rats were used for biocompatibility studies. The sensor was implanted around the femoral artery near the inguinal ligament on one leg (implant side) and sham surgery was performed on the contralateral leg (control side). At 6 and 12 weeks, samples were harvested to assess the inflammation within and around the implant and artery. Two animals were used to assess sensor function. Sensor function was evaluated at implantation and 7 days after the implantation. Signal changes after venous occlusion were also assessed in an epigastric artery island flap model. RESULTS In biocompatibility studies, the diameter of the arterial lumen and intima thickness in the implant group were not significantly different than the control group at the 12-week time point. The number of CD-68 positive cells that infiltrated into the soft tissue, surrounding the femoral artery, was also not significantly different between groups at the 12-week time point. For sensor function, accurate signaling could be recorded at implantation and 7 days later. A change in arterial signal was noted immediately after venous occlusion in a flap model. CONCLUSION The novel wireless, biodegradable sensor presented here is biocompatible and capable of detecting arterial blood flow and venous occlusion with high sensitivity. This promising new technology could combat the complications of wired sensors, while improving the survival rate of flaps with vessel compromise due to its responsive nature.
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Affiliation(s)
- Hiroki Oda
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Stanford University Medical Center, Palo Alto, California.,Division of Plastic and Reconstructive Surgery, Veterans Affairs Palo Alto Health Care System, Palo Alto, California
| | - Levent Beker
- Department of Chemical Engineering, Stanford University, Stanford, California
| | - Yukitoshi Kaizawa
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Stanford University Medical Center, Palo Alto, California.,Division of Plastic and Reconstructive Surgery, Veterans Affairs Palo Alto Health Care System, Palo Alto, California
| | - Austin Franklin
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Stanford University Medical Center, Palo Alto, California.,Division of Plastic and Reconstructive Surgery, Veterans Affairs Palo Alto Health Care System, Palo Alto, California
| | - Jung Gi Min
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Stanford University Medical Center, Palo Alto, California.,Division of Plastic and Reconstructive Surgery, Veterans Affairs Palo Alto Health Care System, Palo Alto, California
| | - Jacinta Leyden
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Stanford University Medical Center, Palo Alto, California.,Division of Plastic and Reconstructive Surgery, Veterans Affairs Palo Alto Health Care System, Palo Alto, California
| | - Zhen Wang
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Stanford University Medical Center, Palo Alto, California.,Division of Plastic and Reconstructive Surgery, Veterans Affairs Palo Alto Health Care System, Palo Alto, California
| | - James Chang
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Stanford University Medical Center, Palo Alto, California.,Division of Plastic and Reconstructive Surgery, Veterans Affairs Palo Alto Health Care System, Palo Alto, California
| | - Zhenan Bao
- Department of Chemical Engineering, Stanford University, Stanford, California
| | - Paige M Fox
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Stanford University Medical Center, Palo Alto, California.,Division of Plastic and Reconstructive Surgery, Veterans Affairs Palo Alto Health Care System, Palo Alto, California
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Mitsuzawa S, Ikeguchi R, Aoyama T, Ando M, Takeuchi H, Yurie H, Oda H, Noguchi T, Ohta S, Zhao C, Ikeya M, Matsuda S. Induced pluripotent stem cell-derived mesenchymal stem cells prolong hind limb survival in a rat vascularized composite allotransplantation model. Microsurgery 2019; 39:737-747. [PMID: 31471984 DOI: 10.1002/micr.30507] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 08/13/2019] [Accepted: 08/16/2019] [Indexed: 12/15/2022]
Abstract
BACKGROUND The reduction of systemic immunosuppressive agents is essential for the expansion of vascularized composite allotransplantation (VCA) in a clinical setting. The purpose of this study is to compare human-induced pluripotent stem cell-derived mesenchymal stem cells (iMSCs) with four other types of mesenchymal stem cells (human bone marrow-derived MSCs [BMMSCs], human adipose-derived MSCs [ADMSCs], rat BMMSCs, and rat ADMSCs) in vitro, and to investigate the in vivo immunomodulatory effect of iMSCs in a rat VCA model. MATERIALS AND METHODS One Brown Norway (BN) rat, 2 Lewis (LEW) rats, and 1 Wistar rat were used in the mixed lymphocyte reaction (MLR), and 9 BN rats and 3 LEW rats (for donors), and 24 LEW rats (for recipients) were used in the VCA model. The abovementioned five types of MSCs were imaged to examine their morphology and were also tested for suppressor function using a MLR. The 24 recipient LEW rats were divided randomly into four groups, and subjected to orthotopic hind limb transplantation. The three control groups were the Iso group, in which transplantation was performed on from three to six LEW rats without immunosuppressive treatment (n = 6); the FK group, in which transplantation was performed from BN rats to LEW rats and recipient rats were treated with tacrolimus alone (FK 506, 0.2 mg/kg, days 0-6 postoperatively, intraperitoneally) (n = 6); and the UT group, in which transplantation was performed from BN rats to LEW rats without any immunosuppressive treatment (n = 6). The experimental group was the iMSC group, in which transplantation was performed from BN rats to LEW rats and recipient rats were treated with tacrolimus (FK 506, 0.2 mg/kg, days 0-6 postoperatively, intraperitoneally) and injected with iMSCs (2 × 106 cells, day 7, intravenously) (n = 6). Hind limb survival was assessed by daily inspection of gross appearance until 50 days postoperatively. Histology of the skin and muscle biopsy were investigated on day 14 postoperatively. A time series of the plasma cytokine level (before transplantation, and at 10, 14, and 17 days after transplantation) was also analyzed. RESULTS The size of adherent and trypsinized iMSCs was 67.5 ± 8.7 and 9.5 ± 1.1 μm, respectively, which was the smallest among the five types of MSCs (p < .01). The absorbance in MLR was significantly smaller with rat ADMSCs (p = .0001), human iMSCs (p = .0006), rat BMMSCs (p = .0014), human ADMSCs (p = .0039), and human BMMSCs (p = .1191) compared to without MSCs. In vivo, iMSC treatment prolonged hind limb survival up to 12.7 days in macroscopic appearance, which is significantly longer than that of the FK group (p < .01). Histology of the skin and muscle biopsy revealed that mononuclear cell infiltration was significantly reduced by iMSC injection (p < .01). iMSC treatment also affected proinflammatory cytokines (interferon-gamma (IFNγ) and tumor necrosis factor α (TNFα)) and the anti-inflammatory cytokine (interleukin-10 (IL-10)) of the recipient plasma. The IFNγ levels at Δ14 and the TNFα levels at Δ14 and Δ17 of the iMSC group were significantly lower than those of the FK group (p = .0226, .0004, and .004, respectively). The IL-10 levels at Δ10 and Δ14 of the iMSC group were significantly higher than those of the FK group (p = .0013 and .0374, respectively). CONCLUSIONS iMSCs induce T cell hyporesponsiveness to prolong hind limb survival in a rat VCA model. This immunomodulatory property against acute rejection could provide one of the promising strategies capable of enabling the toxicities of immunosuppressants to be avoided in clinical settings.
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Affiliation(s)
- Sadaki Mitsuzawa
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Ryosuke Ikeguchi
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Tomoki Aoyama
- Department of Physical Therapy, Human Health Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Maki Ando
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Hisataka Takeuchi
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Hirofumi Yurie
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Hiroki Oda
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Takashi Noguchi
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Souichi Ohta
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Chengzhu Zhao
- Department of Clinical Application, Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
| | - Makoto Ikeya
- Department of Clinical Application, Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
| | - Shuichi Matsuda
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
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Oda H, Akiyama-Oda Y. Microarray data on the comparison of transcript expression between normal and Pt-Delta RNAi embryos in the common house spider Parasteatoda tepidariorum. Data Brief 2019; 25:104350. [PMID: 31453303 PMCID: PMC6702388 DOI: 10.1016/j.dib.2019.104350] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 07/17/2019] [Accepted: 07/26/2019] [Indexed: 12/29/2022] Open
Abstract
We conducted a custom microarray experiment to detect the differences in the transcript expression levels between untreated (normal) and Pt-Delta-RNAi embryos at late stage 6 in the common house spider Parasteatoda tepidariorum. The array probes were designed based on accumulated EST and cDNA sequences. The microarray dataset has been deposited in the Gene Expression Omnibus (GEO) Database at the National Center for Biotechnology Information (NCBI) under the accession GSE113064. The expression of the transcripts selected based on the detected differences was examined in embryos by whole-mount in situ hybridization.
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Affiliation(s)
- Hiroki Oda
- Laboratory of Evolutionary Cell and Developmental Biology, JT Biohistory Research Hall, 1-1 Murasaki-cho, Takatsuki, Osaka 569-1125, Japan.,Laboratory of Biohistory, Department of Biological Sciences, Graduate School of Science, Osaka University, Japan
| | - Yasuko Akiyama-Oda
- Laboratory of Evolutionary Cell and Developmental Biology, JT Biohistory Research Hall, 1-1 Murasaki-cho, Takatsuki, Osaka 569-1125, Japan.,Microbiology and Infection Control, Osaka Medical College, Takatsuki, Osaka, Japan
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36
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Takeuchi H, Sakamoto A, Ikeguchi R, Ota S, Oda H, Yurie H, Mitsuzawa S, Matsuda S. Doxorubicin-Immersed Skeletal Muscle Grafts Promote Peripheral Nerve Regeneration Across a 10-mm Defect in the Rat Sciatic Nerve. J Reconstr Microsurg 2019; 36:41-52. [PMID: 31408891 DOI: 10.1055/s-0039-1694740] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
BACKGROUND The treatment of peripheral nerve defects requires bridging materials. Skeletal muscle grafts have been studied as an alternative to nerve autografts because they contain longitudinally aligned basal laminar tubes that are similar to axons. Several pretreatment methods for muscle grafts have promoted axonal regeneration. Here, a new method of doxorubicin pretreatment was used, and the efficacy of the pretreated muscle graft was evaluated in a rat model of a sciatic nerve defect. METHODS A rat model of a 10-mm sciatic nerve defect was analyzed in three settings: muscle grafts with and without doxorubicin pretreatment (M-graft-w-Dox and M-graft-w/o-Dox groups, respectively) and a nerve autograft group (N-graft) (n = 6/group). The M-graft-w-Dox group was immersed in a doxorubicin solution for 10 minutes and rinsed with saline. Analyses of target muscle atrophy, electrophysiology, and histology were performed 8 weeks after grafting. RESULTS Electrophysiological parameters and target muscle atrophy were significantly superior in the M-graft-w-Dox group compared with the M-graft-w/o-Dox group. Histological assessment revealed the presence of a significantly greater number of regenerated axons in the M-graft-w-Dox group versus the M-graft-w/o-Dox group, while there were no significant differences between the M-graft-w-Dox and N-graft groups. The diameter of myelinated axons of the regenerated nerve in the M-graft-w-Dox group was significantly larger than that in the M-graft-w/o-Dox group, while it was not significantly different compared with the N-graft group. CONCLUSION Pretreatment of muscle grafts with doxorubicin promoted significant peripheral nerve regeneration. This method may represent a new option for the treatment of peripheral nerve defects.
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Affiliation(s)
- Hisataka Takeuchi
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Akio Sakamoto
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Ryosuke Ikeguchi
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Soichi Ota
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Hiroki Oda
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Hirofumi Yurie
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Sadaki Mitsuzawa
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Shuichi Matsuda
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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Maruyama N, Mori A, Shono S, Oda H, Sako T. Evaluation of changes in periodontal bacteria in healthy dogs over 6 months using quantitative real-time PCR. Pol J Vet Sci 2019; 21:127-132. [PMID: 29623999 DOI: 10.24425/119030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Porphyromonas gulae, Tannerella forsythia and Campylobacter rectus are considered dominant periodontal pathogens in dogs. Recently, quantitative real-time PCR (qRT-PCR) methods have been used for absolute quantitative determination of oral bacterial counts. The purpose of the present study was to establish a standardized qRT-PCR procedure to quantify bacterial counts of the three target periodontal bacteria (P. gulae, T. forsythia and C. rectus). Copy numbers of the three target periodontal bacteria were evaluated in 26 healthy dogs. Then, changes in bacterial counts of the three target periodontal bacteria were evaluated for 24 weeks in 7 healthy dogs after periodontal scaling. Analytical evaluation of each self-designed primer indicated acceptable analytical imprecision. All 26 healthy dogs were found to be positive for P. gulae, T. forsythia and C. rectus. Median total bacterial counts (copies/ng) of each target genes were 385.612 for P. gulae, 25.109 for T. forsythia and 5.771 for C. rectus. Significant differences were observed between the copy numbers of the three target periodontal bacteria. Periodontal scaling reduced median copy numbers of the three target periodontal bacteria in 7 healthy dogs. However, after periodontal scaling, copy numbers of all three periodontal bacteria significantly increased over time (p<0.05, Kruskal-Wallis test) (24 weeks). In conclusion, our results demonstrated that qRT-PCR can accurately measure periodontal bacteria in dogs. Furthermore, the present study has revealed that qRT-PCR method can be considered as a new objective evaluation system for canine periodontal disease.
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Affiliation(s)
- N Maruyama
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonancho, Musashino, Tokyo 180-8602, Japan
| | - A Mori
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonancho, Musashino, Tokyo 180-8602, Japan
| | - S Shono
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonancho, Musashino, Tokyo 180-8602, Japan
| | - H Oda
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonancho, Musashino, Tokyo 180-8602, Japan
| | - T Sako
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonancho, Musashino, Tokyo 180-8602, Japan
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Hamamoto M, Arita K, Maeda K, Oda H, Doi S, Masaki T. SUN-093 INDIVIDUAL CHARACTERISTICS AND RECOGNITION FOR THE IMPORTANCE OF COOPERATION WITH CO-WORKERS IN NURSES WHO TAKE CARE OF HEMODIALYSIS PATIENTS RECEIVING HOME CARE. Kidney Int Rep 2019. [DOI: 10.1016/j.ekir.2019.05.490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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Takahashi K, Sasaki A, Shigemori M, Kanbara C, Ikeda M, Kita K, Nomura K, Sugiyama S, Oda H, Masaki T. MON-307 COOKING PRACTICES RELIEVE UNEASINESS FOR THE DISEASE AND DIET THERAPY IN PATIENTS WITH CHRONIC KIDNEY DISEASE. Kidney Int Rep 2019. [DOI: 10.1016/j.ekir.2019.05.1117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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40
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Mitsuzawa S, Ikeguchi R, Aoyama T, Takeuchi H, Yurie H, Oda H, Ohta S, Ushimaru M, Ito T, Tanaka M, Kunitomi Y, Tsuji M, Akieda S, Nakayama K, Matsuda S. The Efficacy of a Scaffold-free Bio 3D Conduit Developed from Autologous Dermal Fibroblasts on Peripheral Nerve Regeneration in a Canine Ulnar Nerve Injury Model: A Preclinical Proof-of-Concept Study. Cell Transplant 2019; 28:1231-1241. [PMID: 31185736 PMCID: PMC6767885 DOI: 10.1177/0963689719855346] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Autologous nerve grafting is widely accepted as the gold standard treatment for segmental
nerve defects. To overcome the inevitable disadvantages of the original method,
alternative methods such as the tubulization technique have been developed. Several
studies have investigated the characteristics of an ideal nerve conduit in terms of
supportive cells, scaffolds, growth factors, and vascularity. Previously, we confirmed
that biological scaffold-free conduits fabricated from human dermal fibroblasts promote
nerve regeneration in a rat sciatic nerve injury model. The purpose of this study is to
evaluate the feasibility of biological scaffold-free conduits composed of autologous
dermal fibroblasts using a large-animal model. Six male beagle dogs were used in this
study. Eight weeks before surgery, dermal fibroblasts were harvested from their groin skin
and grown in culture. Bio 3D conduits were assembled from proliferating dermal fibroblasts
using a Bio 3D printer. The ulnar nerve in each dog’s forelimb was exposed under general
anesthesia and sharply cut to create a 5 mm interstump gap, which was bridged by the
prepared 8 mm Bio 3D conduit. Ten weeks after surgery, nerve regeneration was
investigated. Electrophysiological studies detected compound muscle action potentials
(CMAPs) of the hypothenar muscles and motor nerve conduction velocity (MNCV) in all
animals. Macroscopic observation showed regenerated ulnar nerves. Low-level hypothenar
muscle atrophy was confirmed. Immunohistochemical, histological, and morphometric studies
confirmed the existence of many myelinated axons through the Bio 3D conduit. No severe
adverse event was reported. Hypothenar muscles were re-innervated by regenerated nerve
fibers through the Bio 3D conduit. The scaffold-free Bio 3D conduit fabricated from
autologous dermal fibroblasts is effective for nerve regeneration in a canine ulnar nerve
injury model. This technology was feasible as a treatment for peripheral nerve injury and
segmental nerve defects in a preclinical setting.
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Affiliation(s)
- Sadaki Mitsuzawa
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Ryosuke Ikeguchi
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Tomoki Aoyama
- Department of Physical Therapy, Human Health Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Hisataka Takeuchi
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Hirofumi Yurie
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Hiroki Oda
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Souichi Ohta
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Mika Ushimaru
- Institute for Advancement of Clinical Translational Science, Kyoto University Hospital, Kyoto, Japan
| | - Tatsuya Ito
- Institute for Advancement of Clinical Translational Science, Kyoto University Hospital, Kyoto, Japan
| | - Mai Tanaka
- Department of Physical Therapy, Human Health Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | | | | | | | - Koichi Nakayama
- Department of Regenerative Medicine and Biomedical Engineering Faculty of Medicine, Saga University, Saga, Japan
| | - Shuichi Matsuda
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
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41
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Ikeda M, Aoyama A, Oda H, Yokoyama Y, Kayawake H, Tokuno J, Ueda S, Gochi F, Okabe R, Saito M, Fukuyama J, Okuda M, Yamazaki K, Minatoya K, Yamada Y, Yutaka Y, Nakajima D, Hamaji M, Ohsumi A, Menju T, Sato T, Sonobe M, ChenYoshikawa T, Date H. Less Delayed Chest Closure, Systemic Edema, and Postoperative Bleeding in Lung Transplantation Using ECMO, Compared with CPB. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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42
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Kayawake H, Chen-Yoshikawa T, Saito M, Hirano S, Kurokawa R, Yamagishi H, Okabe R, Gochi F, Tokuno J, Ueda S, Yokoyama Y, Ikeda M, Oda H, Yamada Y, Yutaka Y, Nakajima D, Ohsumi A, Hamaji M, Date H. Hydrogen-Rich Preservation Solution Attenuates Lung Ischemia-Reperfusion Injury after Prolonged Cold Ischemia in a Canine Left Lung Transplant Model. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Oda H, Ikeguchi R, Aoyama T, Ohta S, Noguchi T, Kaizawa Y, Yurie H, Takeuchi H, Mitsuzawa S, Yamamoto K, Matsuda S. Relative antigenicity of components in vascularized composite allotransplants: An experimental study of microRNAs expression in rat hind limb transplantation model. Microsurgery 2018; 39:340-348. [DOI: 10.1002/micr.30408] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 10/26/2018] [Accepted: 11/06/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Hiroki Oda
- Department of Orthopaedic Surgery, Graduate School of Medicine; Kyoto University; Kyoto Japan
| | - Ryosuke Ikeguchi
- Department of Orthopaedic Surgery, Graduate School of Medicine; Kyoto University; Kyoto Japan
| | - Tomoki Aoyama
- Department of Physical Therapy, Human Health Sciences; Graduate School of Medicine, Kyoto University; Kyoto Japan
| | - Souichi Ohta
- Department of Orthopaedic Surgery, Graduate School of Medicine; Kyoto University; Kyoto Japan
| | - Takashi Noguchi
- Department of Orthopaedic Surgery; Tango Central Hospital; Kyotango Japan
| | - Yukitoshi Kaizawa
- Department of Orthopaedic Surgery, Graduate School of Medicine; Kyoto University; Kyoto Japan
| | - Hirofumi Yurie
- Department of Orthopaedic Surgery, Graduate School of Medicine; Kyoto University; Kyoto Japan
| | - Hisataka Takeuchi
- Department of Orthopaedic Surgery, Graduate School of Medicine; Kyoto University; Kyoto Japan
| | - Sadaki Mitsuzawa
- Department of Orthopaedic Surgery, Graduate School of Medicine; Kyoto University; Kyoto Japan
| | - Koji Yamamoto
- Department of Biomedical Engineering, Faculty of Life and Medical Sciences; Doshisha University; Kyotango Japan
| | - Shuichi Matsuda
- Department of Orthopaedic Surgery, Graduate School of Medicine; Kyoto University; Kyoto Japan
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Oda H, Ohta S, Ikeguchi R, Noguchi T, Kaizawa Y, Yurie H, Takeuchi H, Mitsuzawa S, Matsuda S. Pretreatment of nerve grafts with resveratrol improves axonal regeneration following replantation surgery for nerve root avulsion injury in rats. Restor Neurol Neurosci 2018; 36:647-658. [PMID: 30056441 DOI: 10.3233/rnn-180844] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
BACKGROUND Replantation of the avulsed nerve root has been proposed for the treatment of severe brachial plexus injury for several decades. However, due to the complexity of the technique and limited functional improvement, practical applications are yet to be implemented. OBJECTIVE In the present study, we investigated the effect of pretreatment with resveratrol on nerve autografts used for replantation surgery in a rat model of nerve root avulsion. METHODS Resveratrol pretreatment was performed using an explant culture technique. Two surgical procedures were performed. During the first surgery, Sprague-Dawley rats were subjected to left C6 nerve root avulsion, and nerves were harvested for autografting. The harvested grafts were explant-cultured for 1 week. A second procedure was performed to replant the C6 nerve root using the explant-cultured nerve graft 1 week after the first procedure. Histological and immunohistochemical analyses were performed 8 weeks after the second procedure. We first compared findings between explant-cultured nerve grafts and fresh nerve grafts, following which we compared findings between explant-cultured grafts pretreated with and without resveratrol. Changes induced within nerve grafts by 1 week of explant culture with or without resveratrol were investigated in vitro. RESULTS There was no significant difference in outcomes between 1 week-explant-cultured and fresh nerve grafts. Addition of resveratrol to the explant culture medium resulted in a significant increase in the number and myelin thickness of regenerated axons, and in the number of regenerating motor neurons in the C6 spinal cord segment. In vitro analyses revealed that nerve grafts pretreated with resveratrol exhibited significant increases in glial cell line-derived neurotrophic factor (GDNF) expression and the number of dedifferentiated Schwann cells. CONCLUSIONS Resveratrol may promote axonal regeneration following replantation surgery for the treatment of nerve root avulsion injury; however, further studies are required to verify these findings in humans.
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Affiliation(s)
- Hiroki Oda
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Shogoin-Kawahara-Cho, Sakyo-ku, Japan
| | - Souichi Ohta
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Shogoin-Kawahara-Cho, Sakyo-ku, Japan
| | - Ryosuke Ikeguchi
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Shogoin-Kawahara-Cho, Sakyo-ku, Japan
| | - Takashi Noguchi
- Department of Orthopaedic Surgery, Tango Central Hospital, Sugitani, Mineyama-cho, Kyotango, Japan
| | - Yukitoshi Kaizawa
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Shogoin-Kawahara-Cho, Sakyo-ku, Japan
| | - Hirofumi Yurie
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Shogoin-Kawahara-Cho, Sakyo-ku, Japan
| | - Hisataka Takeuchi
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Shogoin-Kawahara-Cho, Sakyo-ku, Japan
| | - Sadaki Mitsuzawa
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Shogoin-Kawahara-Cho, Sakyo-ku, Japan
| | - Shuichi Matsuda
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Shogoin-Kawahara-Cho, Sakyo-ku, Japan
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Harada K, Kobayashi Y, Nozawa S, Sakurai K, Suto K, Yoshikawa A, Sasaki R, Abiko R, Ebata H, Sano I, Oda H, Miyagishima T. Retrospective analysis of efficacy and safety of cell-free and concentrated ascites reinfusion therapy in pancreatic cancer patients with malignant ascites. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy440.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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46
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Tsuchida K, Nishida K, Akiyama T, Sudo K, Hakamata T, Tanaka K, Hosaka Y, Takahashi K, Oda H. P275Cystatin C-based estimated glomerular filtration rate to predict diuretic response to tolvaptan in acute decompensated heart failure. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy564.p275] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- K Tsuchida
- Niigata City General Hospital, Niigata, Japan
| | - K Nishida
- Niigata City General Hospital, Niigata, Japan
| | - T Akiyama
- Niigata City General Hospital, Niigata, Japan
| | - K Sudo
- Niigata City General Hospital, Niigata, Japan
| | - T Hakamata
- Niigata City General Hospital, Niigata, Japan
| | - K Tanaka
- Niigata City General Hospital, Niigata, Japan
| | - Y Hosaka
- Niigata City General Hospital, Niigata, Japan
| | - K Takahashi
- Niigata City General Hospital, Niigata, Japan
| | - H Oda
- Niigata City General Hospital, Niigata, Japan
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Tsuchida K, Mitsuma W, Sato Y, Ozaki K, Hatada K, Tanaka K, Hosaka Y, Imai S, Takahashi K, Matsubara T, Oda H. P4481Ten-year outcomes following coronary revascularization in patients with impaired glucose tolerance. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p4481] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- K Tsuchida
- Niigata City General Hospital, Niigata, Japan
| | | | - Y Sato
- Chiba University Graduate School of Medicine, Chiba, Japan
| | - K Ozaki
- Niigata City General Hospital, Niigata, Japan
| | - K Hatada
- Shinrakuen Hospital, Niigata, Japan
| | - K Tanaka
- Niigata City General Hospital, Niigata, Japan
| | - Y Hosaka
- Niigata City General Hospital, Niigata, Japan
| | - S Imai
- Shinrakuen Hospital, Niigata, Japan
| | - K Takahashi
- Niigata City General Hospital, Niigata, Japan
| | | | - H Oda
- Niigata City General Hospital, Niigata, Japan
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48
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Tsuchida K, Nishida K, Tanaka K, Akiyama T, Hakamata T, Sudo K, Hosaka Y, Takahashi K, Oda H. P2288The influence of sarcopenia on bleeding risk in patients with atrial fibrillation undergoing coronary stenting and subsequent triple antithrombotic therapy. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p2288] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- K Tsuchida
- Niigata City General Hospital, Niigata, Japan
| | - K Nishida
- Niigata City General Hospital, Niigata, Japan
| | - K Tanaka
- Niigata City General Hospital, Niigata, Japan
| | - T Akiyama
- Niigata City General Hospital, Niigata, Japan
| | - T Hakamata
- Niigata City General Hospital, Niigata, Japan
| | - K Sudo
- Niigata City General Hospital, Niigata, Japan
| | - Y Hosaka
- Niigata City General Hospital, Niigata, Japan
| | - K Takahashi
- Niigata City General Hospital, Niigata, Japan
| | - H Oda
- Niigata City General Hospital, Niigata, Japan
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49
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Iwasaki-Yokozawa S, Akiyama-Oda Y, Oda H. Genome-scale embryonic developmental profile of gene expression in the common house spider Parasteatoda tepidariorum. Data Brief 2018; 19:865-867. [PMID: 29900384 PMCID: PMC5997937 DOI: 10.1016/j.dib.2018.05.106] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 05/16/2018] [Accepted: 05/18/2018] [Indexed: 01/03/2023] Open
Abstract
We performed RNA sequencing (RNA-Seq) at ten successive developmental stages in embryos of the common house spider Parasteatoda tepidariorum. Two independent datasets from two pairs of parents represent the normalized coverage of mapped RNA-Seq reads along scaffolds of the P. tepidariorum genome assembly. Transcript abundance was calculated against existing AUGUSTUS gene models. The datasets have been deposited in the Gene Expression Omnibus (GEO) Database at the National Center for Biotechnology Information (NCBI) under the accession number GSE112712.
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Affiliation(s)
- Sawa Iwasaki-Yokozawa
- Laboratory of Evolutionary Cell and Developmental Biology, JT Biohistory Research Hall, 1-1 Murasaki-cho, Takatsuki, Osaka 569-1125, Japan
| | - Yasuko Akiyama-Oda
- Laboratory of Evolutionary Cell and Developmental Biology, JT Biohistory Research Hall, 1-1 Murasaki-cho, Takatsuki, Osaka 569-1125, Japan
- Microbiology and Infection Control, Osaka Medical College, Takatsuki, Osaka, Japan
| | - Hiroki Oda
- Laboratory of Evolutionary Cell and Developmental Biology, JT Biohistory Research Hall, 1-1 Murasaki-cho, Takatsuki, Osaka 569-1125, Japan
- Laboratory of Biohistory, Department of Biological Sciences, Graduate School of Science, Osaka University, Japan
- Corresponding author at: Laboratory of Evolutionary Cell and Developmental Biology, JT Biohistory Research Hall, 1-1 Murasaki-cho, Takatsuki, Osaka 569-1125, Japan.
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Hemmi N, Akiyama-Oda Y, Fujimoto K, Oda H. A quantitative study of the diversity of stripe-forming processes in an arthropod cell-based field undergoing axis formation and growth. Dev Biol 2018; 437:84-104. [DOI: 10.1016/j.ydbio.2018.03.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2017] [Revised: 03/01/2018] [Accepted: 03/01/2018] [Indexed: 12/25/2022]
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