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Yoshida H, Yokota S, Satoh K, Ishisaki A, Chosa N. Connective tissue growth factor enhances TGF-β1-induced osteogenic differentiation via activation of p38 MAPK in mesenchymal stem cells. J Oral Biosci 2024; 66:68-75. [PMID: 38266705 DOI: 10.1016/j.job.2024.01.004] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 01/11/2024] [Accepted: 01/11/2024] [Indexed: 01/26/2024]
Abstract
OBJECTIVES Cellular differentiation is based on the effects of various growth factors. Transforming growth factor (TGF)-β1 plays a pivotal role in inducing osteogenic differentiation of mesenchymal stem cells (MSCs). In this study, we investigated the influence of connective tissue growth factor (CTGF), known to function synergistically with TGF-β1, on osteogenic differentiation in MSCs. METHODS UE7T-13 cells were treated with TGF-β1 and/or CTGF. Subsequently, protein levels of intracellular signaling pathway molecules were determined through western blot analysis. The mRNA expression levels of osteogenic differentiation markers were investigated using reverse transcription-quantitative polymerase chain reaction. Bone matrix mineralization was evaluated through alizarin red staining. RESULTS Co-treatment with TGF-β1 and CTGF resulted in the suppression of TGF-β1-induced phosphorylation of extracellular signal-regulated kinase 1/2, an intracellular signaling pathway molecule in MSCs, while significantly enhancing the phosphorylation of p38 mitogen-activated protein kinase (MAPK). In MSCs, co-treatment with CTGF and TGF-β1 led to increased expression levels of alkaline phosphatase and type I collagen, markers of osteogenic differentiation induced by TGF-β1. Osteopontin expression was observed only after TGF-β1 and CTGF co-treatment. Notably, bone sialoprotein and osteocalcin were significantly upregulated by treatment with CTGF alone. Furthermore, CTGF enhanced the TGF-β1-induced mineralization in MSCs, with complete suppression observed after treatment with a p38 MAPK inhibitor. CONCLUSIONS CTGF enhances TGF-β1-induced osteogenic differentiation and subsequent mineralization in MSCs by predominantly activating the p38 MAPK-dependent pathway.
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Affiliation(s)
- Hironori Yoshida
- Division of Cellular Biosignal Sciences, Department of Biochemistry, Iwate Medical University, Yahaba, Iwate, 028-3694, Japan; Division of Orthodontics, Department of Developmental Oral Health Science, Iwate Medical University, Morioka, Iwate, 020-8505, Japan
| | - Seiji Yokota
- Division of Cellular Biosignal Sciences, Department of Biochemistry, Iwate Medical University, Yahaba, Iwate, 028-3694, Japan
| | - Kazuro Satoh
- Division of Orthodontics, Department of Developmental Oral Health Science, Iwate Medical University, Morioka, Iwate, 020-8505, Japan
| | - Akira Ishisaki
- Division of Cellular Biosignal Sciences, Department of Biochemistry, Iwate Medical University, Yahaba, Iwate, 028-3694, Japan
| | - Naoyuki Chosa
- Division of Cellular Biosignal Sciences, Department of Biochemistry, Iwate Medical University, Yahaba, Iwate, 028-3694, Japan.
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Sone I, Honda T, Sakuraba M, Satoh K, Kuwajima Y, Baba S, Wada Y. Goltz Syndrome Combined with Triple X Syndrome, a Case Report. Cleft Palate Craniofac J 2024; 61:534-538. [PMID: 36443947 DOI: 10.1177/10556656221141236] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2024] Open
Abstract
Goltz syndrome is a rare X-linked dominant multisystem disorder that presents with ectoderm and mesoderm-derived symptoms. Skin manifestations including congenital patchy skin aplasia, congenital nodular fat herniation, congenital hypo- or hyperpigmentation along Blaschko's lines, telangiectasia, and congenital ridged dysplastic nails are typical in this disorder. Almost all cases of Goltz syndrome correspond to female newborns and that hemizygosis makes the syndrome fetal in males. Triple X syndrome is a relatively common congenital disorder that presents with mild to no symptoms in the developmental and psychiatric realm. The patient reported here was born with multisystem anomaly affecting the eyes, craniofacial region, cardiovascular system, skin, and limbs. A G-banding chromosomal study revealed 47, XXX. She was diagnosed with Goltz syndrome owing to her distinctive skin manifestations. The congenital cervical skin defect healed with conservative treatment. The facial cleft, cleft lip-palate, and syndactyly were successfully treated with multiple surgical treatments. The combination of triple X syndrome and Goltz syndrome is very rare. We describe the expression of presenting with both syndromes simultaneously.
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Affiliation(s)
- Itaru Sone
- Department of Plastic and Reconstructive Surgery, School of Medicine, Iwate Medical University, Morioka, Japan
| | - Takayuki Honda
- Department of Plastic and Reconstructive Surgery, School of Medicine, Iwate Medical University, Morioka, Japan
| | - Minoru Sakuraba
- Department of Plastic and Reconstructive Surgery, School of Medicine, Iwate Medical University, Morioka, Japan
| | - Kazuro Satoh
- Division of Orthodontics, Department of Developmental Oral Health Science, School of Dentistry, Iwate Medical University, Morioka, Japan
| | - Yukinori Kuwajima
- Division of Orthodontics, Department of Developmental Oral Health Science, School of Dentistry, Iwate Medical University, Morioka, Japan
| | - Shunsuke Baba
- Department of Dermatology, School of Medicine, Iwate Medical University, Morioka, Japan
| | - Yasunori Wada
- Department of Pediatrics, School of Medicine, Iwate Medical University, Morioka, Japan
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Ueda A, Tussie C, Kim S, Kuwajima Y, Matsumoto S, Kim G, Satoh K, Nagai S. Classification of Maxillofacial Morphology by Artificial Intelligence Using Cephalometric Analysis Measurements. Diagnostics (Basel) 2023; 13:2134. [PMID: 37443528 DOI: 10.3390/diagnostics13132134] [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] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 06/08/2023] [Accepted: 06/15/2023] [Indexed: 07/15/2023] Open
Abstract
The characteristics of maxillofacial morphology play a major role in orthodontic diagnosis and treatment planning. While Sassouni's classification scheme outlines different categories of maxillofacial morphology, there is no standardized approach to assigning these classifications to patients. This study aimed to create an artificial intelligence (AI) model that uses cephalometric analysis measurements to accurately classify maxillofacial morphology, allowing for the standardization of maxillofacial morphology classification. This study used the initial cephalograms of 220 patients aged 18 years or older. Three orthodontists classified the maxillofacial morphologies of 220 patients using eight measurements as the accurate classification. Using these eight cephalometric measurement points and the subject's gender as input features, a random forest classifier from the Python sci-kit learning package was trained and tested with a k-fold split of five to determine orthodontic classification; distinct models were created for horizontal-only, vertical-only, and combined maxillofacial morphology classification. The accuracy of the combined facial classification was 0.823 ± 0.060; for anteroposterior-only classification, the accuracy was 0.986 ± 0.011; and for the vertical-only classification, the accuracy was 0.850 ± 0.037. ANB angle had the greatest feature importance at 0.3519. The AI model created in this study accurately classified maxillofacial morphology, but it can be further improved with more learning data input.
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Affiliation(s)
- Akane Ueda
- Division of Orthodontics, Department of Developmental Oral Health Science, School of Dentistry, Iwate Medical University, 1-3-27 Chuo-dori, Morioka 020-8505, Iwate, Japan
- Department of Restorative Dentistry and Biomaterial Sciences, Harvard School of Dental Medicine, 188 Longwood Avenue, Boston, MA 02115, USA
| | - Cami Tussie
- DMD Candidate Class of 2025, Harvard School of Dental Medicine, 188 Longwood Avenue, Boston, MA 02115, USA
| | - Sophie Kim
- DMD Candidate Class of 2025, Harvard School of Dental Medicine, 188 Longwood Avenue, Boston, MA 02115, USA
| | - Yukinori Kuwajima
- Division of Orthodontics, Department of Developmental Oral Health Science, School of Dentistry, Iwate Medical University, 1-3-27 Chuo-dori, Morioka 020-8505, Iwate, Japan
| | - Shikino Matsumoto
- Division of Orthodontics, Department of Developmental Oral Health Science, School of Dentistry, Iwate Medical University, 1-3-27 Chuo-dori, Morioka 020-8505, Iwate, Japan
| | - Grace Kim
- Department of Developmental Biology, Harvard School of Dental Medicine,188 Longwood Avenue, Boston, MA 02115, USA
| | - Kazuro Satoh
- Division of Orthodontics, Department of Developmental Oral Health Science, School of Dentistry, Iwate Medical University, 1-3-27 Chuo-dori, Morioka 020-8505, Iwate, Japan
| | - Shigemi Nagai
- Department of Restorative Dentistry and Biomaterial Sciences, Harvard School of Dental Medicine, 188 Longwood Avenue, Boston, MA 02115, USA
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Asanuma K, Yokota S, Chosa N, Kamo M, Ibi M, Mayama H, Irié T, Satoh K, Ishisaki A. Hydrogen peroxide-induced oxidative stress promotes expression of CXCL15/Lungkine mRNA in a MEK/ERK-dependent manner in fibroblast-like synoviocytes derived from mouse temporomandibular joint. J Oral Biosci 2023; 65:97-103. [PMID: 36584898 DOI: 10.1016/j.job.2022.12.002] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 12/21/2022] [Accepted: 12/19/2022] [Indexed: 12/29/2022]
Abstract
OBJECTIVES Temporomandibular joint osteoarthritis (TMJ-OA) is a multifactorial disease caused by inflammation and oxidative stress. It has been hypothesized that mechanical stress-induced injury of TMJ tissues induces the generation of reactive oxygen species (ROS), such as hydroxyl radical (OH∙), in the synovial fluid (SF). In general, the overproduction of ROS contributes to synovial inflammation and dysfunction of the subchondral bone in OA. However, the mechanism by which ROS-injured synoviocytes recruit inflammatory cells to TMJ-OA lesions remains unclear. METHODS Reverse transcription-quantitative polymerase chain reaction (RT-qPCR) was performed to evaluate the mRNA expression of chemoattractant molecules. The phosphorylation levels of intracellular signaling molecules were evaluated using western blot analysis. RESULTS Hydrogen peroxide (H2O2) treatment significantly promoted mRNA expression of neutrophil chemoattractant CXCL15/Lungkine in a dose-dependent manner (100-500 μM) in fibroblast-like synoviocytes (FLSs) derived from mouse TMJ. H2O2 (500 μM) significantly upregulated the phosphorylation of extracellular signal-regulated kinase (ERK)1 and ERK2 in FLSs. Intriguingly, the mitogen-activated protein (MAP)/ERK kinase (MEK) inhibitor U0126 (10 μM) nullified H2O2-induced increase in CXCL15/Lungkine mRNA expression. Additionally, H2O2 (500 μM) administration significantly upregulated OH∙ production in FLSs, as assessed by live-cell permeant fluorescent probe targeted against OH∙ under fluorescence microscopy. Furthermore, the ROS inhibitor N-acetyl-l-cysteine (5 mM) partially but significantly reversed H2O2-mediated phosphorylation of ERK1/2. CONCLUSIONS H2O2-induced oxidative stress promoted the expression of CXCL15/Lungkine mRNA in a MEK/ERK-dependent manner in mouse TMJ-derived FLSs, suggesting that FLSs recruit neutrophils to TMJ-OA lesions through the production of CXCL15/Lungkine and exacerbate the local inflammatory response.
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Affiliation(s)
- Kanna Asanuma
- Division of Cellular Biosignal Sciences, Department of Biochemistry, Iwate Medical University, 1-1-1 Idai-dori, Yahaba-cho, Shiwa-gun, Iwate-ken 028-3694, Japan; Division of Orthodontics, Department of Developmental Oral Health Science, Iwate Medical University, 1-3-27 Chuo-dori, Morioka-shi, Iwate-ken 020-8505, Japan
| | - Seiji Yokota
- Division of Cellular Biosignal Sciences, Department of Biochemistry, Iwate Medical University, 1-1-1 Idai-dori, Yahaba-cho, Shiwa-gun, Iwate-ken 028-3694, Japan
| | - Naoyuki Chosa
- Division of Cellular Biosignal Sciences, Department of Biochemistry, Iwate Medical University, 1-1-1 Idai-dori, Yahaba-cho, Shiwa-gun, Iwate-ken 028-3694, Japan
| | - Masaharu Kamo
- Division of Cellular Biosignal Sciences, Department of Biochemistry, Iwate Medical University, 1-1-1 Idai-dori, Yahaba-cho, Shiwa-gun, Iwate-ken 028-3694, Japan
| | - Miho Ibi
- Division of Anatomical and Cellular Pathology, Department of Pathology, Iwate Medical University, 1-1-1 Idai-dori, Yahaba-cho, Shiwa-gun, Iwate-ken 028-3694, Japan
| | - Hisayo Mayama
- Division of Orthodontics, Department of Developmental Oral Health Science, Iwate Medical University, 1-3-27 Chuo-dori, Morioka-shi, Iwate-ken 020-8505, Japan
| | - Tarou Irié
- Division of Anatomical and Cellular Pathology, Department of Pathology, Iwate Medical University, 1-1-1 Idai-dori, Yahaba-cho, Shiwa-gun, Iwate-ken 028-3694, Japan
| | - Kazuro Satoh
- Division of Orthodontics, Department of Developmental Oral Health Science, Iwate Medical University, 1-3-27 Chuo-dori, Morioka-shi, Iwate-ken 020-8505, Japan
| | - Akira Ishisaki
- Division of Cellular Biosignal Sciences, Department of Biochemistry, Iwate Medical University, 1-1-1 Idai-dori, Yahaba-cho, Shiwa-gun, Iwate-ken 028-3694, Japan.
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Fukazawa K, Sawada T, Kuwajima Y, Sasaki K, Satoh K, Takemoto S. Tensile and shear bond strengths of a stainless steel used in orthodontic brackets bonded to bovine enamel using two types of resin cement. Dent Mater J 2023; 42:300-307. [PMID: 36775336 DOI: 10.4012/dmj.2022-198] [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] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
The purpose of this study was to examine the relationship between the bond strength of stainless steel with two types of resin cements (MMA- and composite-based) on bovine enamel depending on the directionality of the applied force. The specimens were either placed in water or subjected to thermal cycles (TC), and the shear or tensile bond strengths (SBS or TBS) were determined. The SBS showed significantly greater than the TBS for both types of cement, and the SBS and TBS for composite-based cement had larger than MMA-based one. No significant difference in SBS was observed in the cements even after being subjected to TC. Cohesive failures of the cement and bovine enamel in the composite-based group, while adhesive failures were observed in MMA-based one. Consequently, the direction of the force at both cements affected the retention of stainless steel, and MMA-based cement was preferred when prioritizing less enamel damages.
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Affiliation(s)
- Keiko Fukazawa
- Division of Orthodontic, Department of Developmental Oral Health Science, School of Dentistry, Iwate Medical University
| | - Tomofumi Sawada
- Department of Biomedical Engineering, Iwate Medical University
| | - Yukinori Kuwajima
- Division of Orthodontic, Department of Developmental Oral Health Science, School of Dentistry, Iwate Medical University
| | - Kaori Sasaki
- Department of Biomedical Engineering, Iwate Medical University
| | - Kazuro Satoh
- Division of Orthodontic, Department of Developmental Oral Health Science, School of Dentistry, Iwate Medical University
| | - Shinji Takemoto
- Department of Biomedical Engineering, Iwate Medical University
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Yokota S, Chosa N, Matsumoto S, Satoh K, Ishisaki A. Extracellular adenosine 5'-diphosphate promotes MCP-1/CCL2 expression via the P2Y 13 purinergic receptor/ERK signaling axis in temporomandibular joint-derived mouse fibroblast-like synoviocytes. Mol Biol Rep 2023; 50:1595-1602. [PMID: 36526849 PMCID: PMC9889505 DOI: 10.1007/s11033-022-08125-2] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 11/15/2022] [Indexed: 12/23/2022]
Abstract
BACKGROUND Temporomandibular joint osteoarthritis (TMJ-OA) causes cartilage degeneration, bone cavitation, and fibrosis of the TMJ. However, the mechanisms underlying the fibroblast-like synoviocyte (FLS)-mediated inflammatory activity in TMJ-OA remain unclear. METHODS AND RESULTS Reverse transcription-quantitative polymerase chain reaction analysis revealed that the P2Y1, P2Y12, and P2Y13 purinergic receptor agonist adenosine 5'-diphosphate (ADP) significantly induces monocyte chemotactic protein 1 (MCP-1)/ C-C motif chemokine ligand 2 (CCL2) expression in the FLS1 synovial cell line. In contrast, the uracil nucleotide UTP, which is a P2Y2 and P2Y4 agonist, has no significant effect on MCP-1/CCL2 production in FLS1 cells. In addition, the P2Y13 antagonist MRS 2211 considerably decreases the expression of ADP-induced MCP-1/CCL2, whereas ADP stimulation enhances extracellular signal-regulated kinase (ERK) phosphorylation. Moreover, it was found that the mitogen-activated protein kinase/ERK kinase (MEK) inhibitor U0126 reduces ADP-induced MCP-1/CCL2 expression. CONCLUSION ADP enhances MCP-1/CCL2 expression in TMJ FLSs via P2Y13 receptors in an MEK/ERK-dependent manner, thus resulting in inflammatory cell infiltration in the TMJ. Collectively, the findings of this study contribute to a partial clarification of the signaling pathway underlying the development of inflammation in TMJ-OA and can help identify potential therapeutic targets for suppressing ADP-mediated purinergic signaling in this disease.
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Affiliation(s)
- Seiji Yokota
- Division of Cellular Biosignal Sciences, Department of Biochemistry, Iwate Medical University, 1-1-1 Idai-dori, Yahaba-cho, Shiwa-gun, 028-3694, Iwate, Japan.
| | - Naoyuki Chosa
- Division of Cellular Biosignal Sciences, Department of Biochemistry, Iwate Medical University, 1-1-1 Idai-dori, Yahaba-cho, Shiwa-gun, 028-3694, Iwate, Japan
| | - Shikino Matsumoto
- Division of Orthodontics, Department of Developmental Oral Health Science, Iwate Medical University, 19-1 Uchimal, 020-8505, Morioka-shi, Iwate, Japan
| | - Kazuro Satoh
- Division of Orthodontics, Department of Developmental Oral Health Science, Iwate Medical University, 19-1 Uchimal, 020-8505, Morioka-shi, Iwate, Japan
| | - Akira Ishisaki
- Division of Cellular Biosignal Sciences, Department of Biochemistry, Iwate Medical University, 1-1-1 Idai-dori, Yahaba-cho, Shiwa-gun, 028-3694, Iwate, Japan.
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Ogawa K, Ishida Y, Kuwajima Y, Lee C, Emge JR, Izumisawa M, Satoh K, Ishikawa-Nagai S, Da Silva JD, Chen CY. Accuracy of a Method to Monitor Root Position Using a 3D Digital Crown/Root Model during Orthodontic Treatments. Tomography 2022; 8:550-559. [PMID: 35314622 PMCID: PMC8938848 DOI: 10.3390/tomography8020045] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 02/15/2022] [Accepted: 02/17/2022] [Indexed: 11/16/2022] Open
Abstract
This study aimed to assess the accuracy of a method of predicting post-movement root position during orthodontic treatment using a 3D digital crown/root model (3DCRM) created with pre-movement records of both cone-beam computed tomography (CBCT) and dental arch digital scans. Pre- and post-movement CBCT scans and dental arch digital scans of five patients who had completed orthodontic treatments were used in this study. The 3DCRM was superimposed onto the post-movement scanned dental arch to identify the post-movement root position (test method). Post-movement CBCT (referenced as the current method) served as the control to identify the actual post-movement root position. 3D-coordinate analysis revealed no significant differences between the test and current methods along the X and Y axes. However, the discrepancy on the Z axis (especially in cases of intrusion) was greater than that in all other directions for all three tooth types examined (p < 0.05). A strong positive correlation between the degree of discrepancy and the distance of tooth movement was observed on the Z axis (r = 0.71). The 3DCRM method showed promising potential to accurately predict root position during orthodontic treatments without the need for a second CBCT. However, root resorption, which affected the Z axis prediction, needs to be closely monitored using periapical radiographs to complement this method.
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Affiliation(s)
- Kaho Ogawa
- Department of Oral Medicine, Immunity and Infection, Harvard School of Dental Medicine, 188 Longwood Avenue, Boston, MA 02115, USA; (K.O.); (Y.I.); (Y.K.); (C.L.); (J.R.E.); (S.I.-N.)
- Division of Orthodontics, Department of Developmental Oral Health Science, School of Dentistry Iwate Medical University, 1-3-27 Chuo-dori, Morioka 020-8505, Iwate, Japan;
| | - Yoshiki Ishida
- Department of Oral Medicine, Immunity and Infection, Harvard School of Dental Medicine, 188 Longwood Avenue, Boston, MA 02115, USA; (K.O.); (Y.I.); (Y.K.); (C.L.); (J.R.E.); (S.I.-N.)
- Department of Dental Materials Science, School of Life Dentistry at Tokyo, Nippon Dental University, 1-9-20, Fujimi, Chiyoda-ku, Tokyo 102-8159, Japan
| | - Yukinori Kuwajima
- Department of Oral Medicine, Immunity and Infection, Harvard School of Dental Medicine, 188 Longwood Avenue, Boston, MA 02115, USA; (K.O.); (Y.I.); (Y.K.); (C.L.); (J.R.E.); (S.I.-N.)
- Division of Orthodontics, Department of Developmental Oral Health Science, School of Dentistry Iwate Medical University, 1-3-27 Chuo-dori, Morioka 020-8505, Iwate, Japan;
| | - Cliff Lee
- Department of Oral Medicine, Immunity and Infection, Harvard School of Dental Medicine, 188 Longwood Avenue, Boston, MA 02115, USA; (K.O.); (Y.I.); (Y.K.); (C.L.); (J.R.E.); (S.I.-N.)
| | - Jacob R. Emge
- Department of Oral Medicine, Immunity and Infection, Harvard School of Dental Medicine, 188 Longwood Avenue, Boston, MA 02115, USA; (K.O.); (Y.I.); (Y.K.); (C.L.); (J.R.E.); (S.I.-N.)
| | - Mitsuru Izumisawa
- Division of Dental Radiology, School of Dentistry, Iwate Medical University, 1-3-27 Chuo-dori, Morioka 020-8505, Iwate, Japan;
| | - Kazuro Satoh
- Division of Orthodontics, Department of Developmental Oral Health Science, School of Dentistry Iwate Medical University, 1-3-27 Chuo-dori, Morioka 020-8505, Iwate, Japan;
| | - Shigemi Ishikawa-Nagai
- Department of Oral Medicine, Immunity and Infection, Harvard School of Dental Medicine, 188 Longwood Avenue, Boston, MA 02115, USA; (K.O.); (Y.I.); (Y.K.); (C.L.); (J.R.E.); (S.I.-N.)
| | - John D. Da Silva
- Department of Restorative Dentistry and Biomaterials Science, Harvard School of Dental Medicine, 188 Longwood Avenue, Boston, MA 02115, USA;
| | - Chia-Yu Chen
- Department of Oral Medicine, Immunity and Infection, Harvard School of Dental Medicine, 188 Longwood Avenue, Boston, MA 02115, USA; (K.O.); (Y.I.); (Y.K.); (C.L.); (J.R.E.); (S.I.-N.)
- Correspondence: ; Tel.: +1-857-576-0279
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Suzumura S, Ito K, Narukawa R, Takano E, Satoh K, Ueda T, Kondo I. Effect on Physical Functions of Older Adults When Refraining from Going out due to COVID-19 Restrictions. Adv Gerontol 2022; 12. [PMCID: PMC9774067 DOI: 10.1134/s2079057022040154] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The study investigated the effect of refraining from going out during the coronavirus disease 2019 pandemic on physical function in community-dwelling older adults. The study included 49 patients who underwent home-visit rehabilitation. Four parameters of physical function—grip strength, five-times sit-to-stand test, single-leg stance test, and standing test for imbalance and disequilibrium (SIDE)—were assessed. They were evaluated before (March 2020) and after (May 2020) the state emergency was imposed, and the results were compared. The grip strength decreased significantly. A significant difference was also observed in the proportion of different SIDE levels in the study group before and after the implementation of the state emergency. The number of SIDE 2a or lower patients increased during the state emergency (p < 0.001). Comprehensive community support and rehabilitation are necessary to maintain physical function in older individuals. In particular, we believe that there is a need to utilize remote rehabilitation using digital devices (such as internet-based guidance) so that older adults can continue to exercise at home.
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Affiliation(s)
- S. Suzumura
- Faculty of Rehabilitation, School of Health Sciences, Fujita Health University, 470-1192 Toyoake City, Aichi Japan ,Department of Rehabilitation Medicine, National Center for Geriatrics and Gerontology, 474-8511 Obu City, Aichi Japan
| | - K. Ito
- Department of Rehabilitation Medicine, National Center for Geriatrics and Gerontology, 474-8511 Obu City, Aichi Japan
| | - R. Narukawa
- Department of Rehabilitation Medicine, National Center for Geriatrics and Gerontology, 474-8511 Obu City, Aichi Japan
| | - E. Takano
- Assistive Robotics Center, National Center for Geriatrics and Gerontology, 474-8511 Obu City, Aichi Japan
| | - K. Satoh
- Department of Rehabilitation Medicine, National Center for Geriatrics and Gerontology, 474-8511 Obu City, Aichi Japan
| | - T. Ueda
- Department of Rehabilitation Medicine, National Center for Geriatrics and Gerontology, 474-8511 Obu City, Aichi Japan
| | - I. Kondo
- Department of Rehabilitation Medicine, National Center for Geriatrics and Gerontology, 474-8511 Obu City, Aichi Japan
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Takahashi M, Okada K, Ouch R, Konno T, Usui K, Suzuki H, Satoh M, Kogure T, Satoh K, Watanabe Y, Nakamura H, Murai Y. Fibronectin plays a major role in hypoxia-induced lenvatinib resistance in hepatocellular carcinoma PLC/PRF/5 cells. Pharmazie 2021; 76:594-601. [PMID: 34986955 DOI: 10.1691/ph.2021.1854] [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] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Resistance to lenvatinib mesylate (LEN), a systemic chemotherapy that can be administered orally, has been a major issue for treatment of hepatocellular carcinoma (HCC). Although HCC is the tumor that most exhibits intratumoral hypoxia, which has been shown to be involved in the development of treatment resistance, there are no reports of LEN resistance in HCC treatment under hypoxia. The purpose of our study was to elucidate the mechanism of treatment resistance to LEN under hypoxia using HCC cell lines. We confirmed LEN resistance under hypoxic conditions in HCC cell lines. There was a significant increase in the IC50 value of PLC/PRF/5 cells from 13.0±0.8 μM in normoxia to 21.3±1.1 μM in hypoxia, but in HepG2 cells, the increase was not significant. To elucidate the LEN resistance mechanism of PLC/PRF/5 cells under hypoxia, we performed microarray analysis and extracted genes that are thought to be related to this mechanism. Furthermore, in-silico analysis confirmed significant changes in the extracellular matrix, and among them, FN1 encoding fibronectin was determined as the hub of the gene cluster. The expression of fibronectin in PLC/PRF/5 cells examined with immunofluorescence staining was significantly elevated in and outside of cells under hypoxia, and tended to decrease when cells were exposed to LEN under normoxia. Furthermore, the fibronectin concentration in the culture solution of PLC/PRF/5 cells examined by ELISA was 2.3 times higher under hypoxia than under normoxia under LEN(-) conditions, and 1.6 times higher under hypoxia than under normoxia under LEN(+) conditions. It is assumed that in PLC/PRF/5 cells, fibronectin is probably suppressed as an indirect effect of LEN under normoxia, but transcription factors such as HIF-1α are induced under hypoxia, thus enhancing the production of fibronectin and attenuating the effect of LEN, resulting in drug resistance. This behavior of fibronectin with LEN exposure under hypoxia is probably specific to PLC/PRF/5 cells. Further studies should verify the combined effective inhibition of fibronectin and the MAPK pathway as a promising therapeutic strategy to enhance the value of LEN in HCC treatment.
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Affiliation(s)
- M Takahashi
- Division of Clinical Pharmaceutics, Tohoku Medical and Pharmaceutical University; Miyagi, Japan; Department of Pharmacy, Tohoku Medical and Pharmaceutical University; Miyagi, Japan
| | - K Okada
- Department of Pharmacy, Tohoku Medical and Pharmaceutical University; Miyagi, Japan; Division of Clinical Pharmaceutics and Pharmacy Practice, Tohoku Medical and Pharmaceutical University; Miyagi, Japan;,
| | - R Ouch
- Department of Pharmacy, Tohoku Medical and Pharmaceutical University; Miyagi, Japan; Division of Clinical Pharmaceutics and Pharmacy Practice, Tohoku Medical and Pharmaceutical University; Miyagi, Japan
| | - T Konno
- Division of Clinical Pharmaceutics, Tohoku Medical and Pharmaceutical University; Miyagi, Japan; Department of Pharmacy, Tohoku Medical and Pharmaceutical University; Miyagi, Japan
| | - K Usui
- Department of Pharmacy, Tohoku Medical and Pharmaceutical University; Miyagi, Japan; Division of Clinical Pharmaceutics and Pharmacy Practice, Tohoku Medical and Pharmaceutical University; Miyagi, Japan
| | - H Suzuki
- Division of Clinical Pharmaceutics, Tohoku Medical and Pharmaceutical University; Miyagi, Japan; Department of Pharmacy, Tohoku Medical and Pharmaceutical University; Miyagi, Japan
| | - M Satoh
- Division of Gastroenterology, Tohoku Medical and Pharmaceutical University; Miyagi, Japan
| | - T Kogure
- Division of Gastroenterology, Tohoku Medical and Pharmaceutical University; Miyagi, Japan
| | - K Satoh
- Division of Gastroenterology, Tohoku Medical and Pharmaceutical University; Miyagi, Japan
| | - Y Watanabe
- Division of Clinical Pharmaceutics and Pharmacy Practice, Tohoku Medical and Pharmaceutical University; Miyagi, Japan
| | - H Nakamura
- Division of Clinical Pharmaceutics, Tohoku Medical and Pharmaceutical University; Miyagi, Japan
| | - Y Murai
- Division of Clinical Pharmaceutics, Tohoku Medical and Pharmaceutical University; Miyagi, Japan
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10
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Suzuki S, Motogi J, Matsuzawa W, Takayanagi T, Umemoto T, Hirota N, Nakai H, Hyodo A, Satoh K, Otsuka T, Arita T, Yagi N, Yajima J, Yamashita T. Identifying patients with atrial fibrillation during sinus rhythm on ECG: confirming the utility of artificial intelligence algorithm in a small-scale cohort without structural heart diseases. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.3050] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Detection of atrial fibrillation (AF) out of electrocardiograph (ECG) on sinus rhythm (SR) using artificial intelligence (AI) algorithm has been widely studied within recent couple of years. Generally, it is believed that a huge number of ECGs are necessary for developing an AI-enabled ECG to be adequate to correspond to a lot of minor variations of ECGs. For example, structural heart diseases have typical ECG characteristics, but they could be a noise for the purpose of detecting the small signs of electrocardiographic signature of AF. We hypothesized that when patients with structural heart diseases are excluded, AI-enabled ECG for identifying patients with AF can be developed with a small number of ECGs.
Methods
We developed an AI-enabled ECG using a convolutional neural network to detect the electrocardiographic signature of AF present during normal sinus rhythm (NSR) using a digital, standard 10-second, 12-lead ECGs. We included all patients who newly visited the Cardiovascular Institute with at least one NSR ECG between Feb 1, 2010, and March 31, 2018. We classified patients with at least one ECG with a rhythm of AF as positive for AF (AF label) and others as negative for AF (SR label). We allocated ECGs to the training, internal validation, and testing datasets in a 7:1:2 ratio. We calculated the area under the curve (AUC) of the receiver operating characteristic curve for the internal validation dataset to select a probability threshold, which we applied to the testing dataset. We evaluated model performance on the testing dataset by calculating the AUC and the sensitivity, specificity, F1 score, and accuracy with two-sided 95% confidence intervals (CIs).
Results
We totally included 19170 patients with 12-lead ECG. After excluding patients with structural heart diseases, 12825 patients with NSR ECGs at the initial visit were identified (1262 were clinically diagnosed as AF anytime during the time course and 11563 were never diagnosed as AF). Of 11563 non-AF patients, 1818 patients who were followed over 1095 days were selected for the analysis with the SR label, to secure the robustness for maintaining SR. Of 1262 AF patients, 251 patients were selected for the analysis with the AF label, of whom a NSR ECG within 31 days before or after the index AF ECG (the first AF ECG during the time course) could be obtained. In the patients with AF label, the NSR ECG of which the date was the nearest to the index AF ECG was selected for the analysis. The AI-enabled ECG showed an AUC of 0.88 (0.84–0.92) with sensitivity 81% (72–88), specificity 80% (77–83), F1 score 50% (43–57), and overall accuracy 80% (78–83).
Conclusion
An AI-enabled ECG acquired during NSR allowed identification of patients with AF in a small population without structural heart diseases.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- S Suzuki
- Cardiovascular Institute, Department of cardiovascular medicine, Tokyo, Japan
| | - J Motogi
- Nihon Kohden Corporation, Tokyo, Japan
| | | | | | - T Umemoto
- Nihon Kohden Corporation, Tokyo, Japan
| | - N Hirota
- Cardiovascular Institute, Department of cardiovascular medicine, Tokyo, Japan
| | - H Nakai
- Cardiovascular Institute, Department of cardiovascular medicine, Tokyo, Japan
| | - A Hyodo
- Nihon Kohden Corporation, Tokyo, Japan
| | - K Satoh
- Nihon Kohden Corporation, Tokyo, Japan
| | - T Otsuka
- Cardiovascular Institute, Department of cardiovascular medicine, Tokyo, Japan
| | - T Arita
- Cardiovascular Institute, Department of cardiovascular medicine, Tokyo, Japan
| | - N Yagi
- Cardiovascular Institute, Department of cardiovascular medicine, Tokyo, Japan
| | - J Yajima
- Cardiovascular Institute, Department of cardiovascular medicine, Tokyo, Japan
| | - T Yamashita
- Cardiovascular Institute, Department of cardiovascular medicine, Tokyo, Japan
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11
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Nishimiya K, Suda A, Hao K, Takahashi J, Matsumoto Y, Satoh K, Sugisawa J, Shindo T, Godo S, Kikuchi Y, Shiroto T, Shimokawa H. Clinical implications of coronary artery morphology of patients with ischemia and non-obstructive coronary artery disease (INOCA) -An intracoronary OCT study-. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1522] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Introduction
Ischemia and non-obstructive coronary artery disease (INOCA), including microvascular spasm (MVS) and epicardial spasm, has recently attracted much attention, for which in vivo imaging evaluation for coronary artery morphology is warranted for better understanding of this disorder. Besides the improved diagnostic accuracy of optical coherence tomography (OCT) for coronary plaques, we have recently demonstrated its capability for in vivo visualization of coronary adventitial vasa vasorum (VV) and the enhanced VV formation in patients with epicardial spasm.
Purpose
We aimed to examine OCT-delineated morphological characteristics in patients with INOCA in vivo.
Methods
A total of 335 consecutive INOCA patients, who underwent pharmacological spasm provocation tests, lactate sampling, and OCT imaging over the entire length of the left anterior descending (LAD) coronary arteries, were enrolled at our institute over 68 months from April 2013. They were classified into 4 groups; control with non-cardiac chest pain, MVS, diffuse spasm (DS), or focal spasm (FS) (Fig. 1A). MVS was diagnosed when negative lactate extraction ratio (coronary orifice < coronary sinus) was detected despite the absence of epicardial spasm during the spasm provocation test. DS was defined as epicardial spasm induced in more than 2 coronary segments in LAD, and FS as epicardial spasm in one segment. Quantitative analyses for adventitial inflammation and atherosclerotic changes were performed by calculating VV density and %area stenosis (AS) on OCT (Fig. 1B, E). Furthermore, index of microcirculatory resistance (IMR), a marker of microvascular disorder with a cut-off value of ≥25, was measured during intravenous infusion of adenosine, which was then correlated with VV densities in the MVS and DS groups. Coronary plaque with a necrotic core was classified as fibroatheroma (FA), and the number of OCT frames with internal VV (IVV) in the atheroma was counted.
Results
VV density was significantly higher in MVS as compared with the controls (Fig. 1B). DS was most prevalent in INOCA (Fig. 1A) with highest VV density (Fig. 1B). Patients with IMR≥25 were predominantly distributed with a gradual increase in the MVS, DS, and FS groups, but none in the controls (Fig. 1C). Importantly, there was a significant positive correlation between VV densities and IMR in the MVS and DS groups (Fig. 1D). In addition, FS had the largest plaque size and showed the highest prevalence of FA and IVV (Fig. 1E–G).
Conclusions
These results indicate that MVS and DS are characterized by vasomotion abnormalities associated with adventitial inflammation and microvascular disorder, while FS by vulnerable atherosclerotic phenotype, suggesting that OCT may be useful for screening high-risk populations in INOCA.
Figure 1
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- K Nishimiya
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - A Suda
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - K Hao
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - J Takahashi
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Y Matsumoto
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - K Satoh
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - J Sugisawa
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - T Shindo
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - S Godo
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Y Kikuchi
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - T Shiroto
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - H Shimokawa
- Tohoku University Graduate School of Medicine, Sendai, Japan
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12
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Matsumoto S, Yokota S, Chosa N, Kyakumoto S, Kimura H, Kamo M, Satoh K, Ishisaki A. Receptor tyrosine kinase ligands and inflammatory cytokines cooperatively suppress the fibrogenic activity in temporomandibular-joint-derived fibroblast-like synoviocytes via mitogen-activated protein kinase kinase/extracellular signal-regulated kinase. Exp Ther Med 2020; 20:1967-1974. [PMID: 32782506 PMCID: PMC7401313 DOI: 10.3892/etm.2020.8944] [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: 11/11/2019] [Accepted: 04/08/2020] [Indexed: 11/06/2022] Open
Abstract
Osteoarthritis (OA)-related fibrosis is a possible cause of temporomandibular joint (TMJ) stiffness. However, the molecular mechanisms underlying the fibrogenic activity in fibroblast-like synoviocytes (FLSs) remain to be clarified. The present study examined the effects of receptor tyrosine kinase (RTK) ligands, such as fibroblast growth factor (FGF)-1 and epidermal growth factor (EGF), on myofibroblastic differentiation of the FLS cell line FLS1, which is derived from the mouse TMJ. The present study revealed that both FGF-1 and EGF dose-dependently suppressed the expression of the myofibroblast (MF) markers, including α-smooth muscle actin (α-SMA) and type I collagen, in FLS1 cells. Additionally, both FGF-1 and EGF activated extracellular signal-regulated kinase (ERK) in FLS1 cells. In addition, the mitogen-activated protein kinase (MAPK)/ERK kinase (MEK) inhibitor U0126 abrogated the FGF-1- and EGF-mediated suppression of MF marker expression. On the other hand, inflammatory cytokines, such as interleukin-1β and tumor necrosis factor-α, also suppressed the expression of MF markers in FLS1 cells. Importantly, U0126 abrogated the inflammatory cytokine-mediated suppression of MF marker expression. Interestingly, RTK ligands and inflammatory cytokines additively suppressed the expression of type I collagen. These results suggested that RTK ligands and inflammatory cytokines cooperatively inhibited the fibrogenic activity in FLSs derived from the TMJ in a MEK/ERK-dependent manner. The present findings partially clarify the molecular mechanisms underlying the development of OA-related fibrosis in the TMJ and may aid in identifying therapeutic targets for this condition. Additionally, FGF-1 and EGF could be therapeutically utilized to prevent OA-related fibrosis around the inflammatory TMJ.
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Affiliation(s)
- Shikino Matsumoto
- Division of Cellular Biosignal Sciences, Department of Biochemistry, Iwate Medical University, Iwate 028-3694, Japan.,Division of Orthodontics, Department of Developmental Oral Health Science, Iwate Medical University, Iwate 020-8505, Japan
| | - Seiji Yokota
- Division of Cellular Biosignal Sciences, Department of Biochemistry, Iwate Medical University, Iwate 028-3694, Japan
| | - Naoyuki Chosa
- Division of Cellular Biosignal Sciences, Department of Biochemistry, Iwate Medical University, Iwate 028-3694, Japan
| | - Seiko Kyakumoto
- Division of Cellular Biosignal Sciences, Department of Biochemistry, Iwate Medical University, Iwate 028-3694, Japan
| | - Hitomichi Kimura
- Division of Orthodontics, Department of Developmental Oral Health Science, Iwate Medical University, Iwate 020-8505, Japan
| | - Masaharu Kamo
- Division of Cellular Biosignal Sciences, Department of Biochemistry, Iwate Medical University, Iwate 028-3694, Japan
| | - Kazuro Satoh
- Division of Orthodontics, Department of Developmental Oral Health Science, Iwate Medical University, Iwate 020-8505, Japan
| | - Akira Ishisaki
- Division of Cellular Biosignal Sciences, Department of Biochemistry, Iwate Medical University, Iwate 028-3694, Japan
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13
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Kuwajima Y, Ishida Y, Lee C, Mayama H, Satoh K, Ishikawa-Nagai S. 3D digital analysis of magnetic force-driven orthodontic tooth movement. Heliyon 2019; 5:e02861. [PMID: 31844745 PMCID: PMC6895672 DOI: 10.1016/j.heliyon.2019.e02861] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 10/11/2019] [Accepted: 11/13/2019] [Indexed: 02/06/2023] Open
Abstract
With the introduction of rare earth magnets like neodymium-iron-boron (NdFeB), it has become possible to produce small magnets with high forces, necessary for its usage in the field of dentistry, such as for orthodontic tooth movement. The ultimate goal of this project is to establish magnetic force-driven orthodontic treatment as a future treatment modality for comprehensive orthodontic treatment. In order to utilize magnets for orthodontic treatment, we must first understand the characteristics of tooth movement created by magnetic forces. In this study, we aimed to digitally assess the efficacy of magnetic attraction and repulsion forces by means of a 3D digital analysis of movement (distance, direction, angulation and duration) and rotation (yaw, pitch and roll) of the crown and root of teeth in an ex vivo typodont model. We performed space closure and space gain treatment of maxillary central incisors (n = 30) and analyzed the movement and rotation of the teeth and root apex with 3D digital analysis. The results of the typodont model indicated significant differences on amount, speed and rotation of tooth and root movement created by magnetic attraction and repulsion forces. We also mimicked a moderate crowding typodont case and successfully treated it with a combination of attraction and repulsion magnetic forces. The moderate crowding case utilized magnets and a titanium archwire to guide the planned tooth movements and prevent undesired or unexpected movement. Further ex vivo experiments and considerations for biosafety will be necessary to investigate magnet force-driven orthodontics as a future modality of orthodontic treatment.
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Affiliation(s)
- Yukinori Kuwajima
- Department of Oral Medicine, Immunity and Infection, Harvard School of Dental Medicine, Boston, MA, USA
| | - Yoshiki Ishida
- Department of Oral Medicine, Immunity and Infection, Harvard School of Dental Medicine, Boston, MA, USA
| | - Cliff Lee
- Department of Oral Medicine, Immunity and Infection, Harvard School of Dental Medicine, Boston, MA, USA
- Department of Orofacial Sciences, University of California, San Francisco School of Dentistry, CA, USA
| | - Hisayo Mayama
- Division of Orthodontics, Department of Developmental Oral Health Science, School of Dentistry, Iwate Medical University, Morioka, Iwate, Japan
| | - Kazuro Satoh
- Division of Orthodontics, Department of Developmental Oral Health Science, School of Dentistry, Iwate Medical University, Morioka, Iwate, Japan
| | - Shigemi Ishikawa-Nagai
- Department of Oral Medicine, Immunity and Infection, Harvard School of Dental Medicine, Boston, MA, USA
- Corresponding author.
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14
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Mayama H, Kuwajima Y, Da Silva JD, Khorashadi S, Lambert RF, Ishida Y, Ishikawa-Nagai S, Miura H, Satoh K. <p>Cephalometric Measurements Of Non-Syndromic Oligodontia In Early Dental Age In A Japanese Population</p>. Clin Cosmet Investig Dent 2019; 11:357-365. [PMID: 31819657 PMCID: PMC6886537 DOI: 10.2147/ccide.s213111] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 09/22/2019] [Indexed: 11/23/2022] Open
Abstract
Purpose Patients and methods Results Conclusion
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Affiliation(s)
- Hisayo Mayama
- Division of Orthodontics, Department of Developmental Oral Health Science, School of Dentistry Iwate Medical University, Morioka, Iwate, Japan
| | - Yukinori Kuwajima
- Department of Oral Medicine, Immunity and Infection, Harvard School of Dental Medicine, Boston, MA, USA
| | - John D Da Silva
- Department of Restorative Dentistry and Biomaterials Science, Harvard School of Dental Medicine, Boston, MA, USA
| | - Shahrzad Khorashadi
- Department of Oral Medicine, Immunity and Infection, Harvard School of Dental Medicine, Boston, MA, USA
| | - R Frederick Lambert
- Department of Oral Medicine, Immunity and Infection, Harvard School of Dental Medicine, Boston, MA, USA
- Department of Health Policy and Management, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Yoshiki Ishida
- Department of Oral Medicine, Immunity and Infection, Harvard School of Dental Medicine, Boston, MA, USA
| | - Shigemi Ishikawa-Nagai
- Department of Oral Medicine, Immunity and Infection, Harvard School of Dental Medicine, Boston, MA, USA
- Correspondence: Shigemi Ishikawa-Nagai Harvard School of Dental Medicine, 188 Longwood Avenue, Boston, MA, USATel +1-671-432-2928Fax +1-617-432-1897 Email
| | - Hiroyuki Miura
- Division of Dental Education, Department of Oral Medicine, School of Dentistry Iwate Medical University, Morioka, Iwate, Japan
| | - Kazuro Satoh
- Division of Orthodontics, Department of Developmental Oral Health Science, School of Dentistry Iwate Medical University, Morioka, Iwate, Japan
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15
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Kurosawa R, Satoh K, Kikuchi N, Satoh T, Omura J, Nogi M, Sunamura S, Ohtsuki T, Yaoita N, Abdul Hai Siddique M, Al-Mamun ME, Shimizu T, Shimokawa H. 55Identification of celastramycin as a novel therapeutic agent for pulmonary arterial hypertension - high-throughput screening of 5,562 compounds. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz747.0008] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Pulmonary arterial hypertension (PAH) is characterized by enhanced proliferation of pulmonary artery smooth muscle cells (PASMCs) accompanying increased production of inflammatory factors and adaptation of mitochondrial metabolism to a hyperproliferative state. However, at present, since all the drugs in clinical use target pulmonary vascular dilatation, they may not be so effective for patients with advanced PAH.
Purposes
We aimed to discover a novel drug for PAH that inhibits PASMC proliferation.
Methods
In the first screening, we examined 5,562 compounds from our original library using high-throughput screening system to discover a compound that inhibits proliferation of PASMCs from PAH patients (PAH-PASMCs). In the second screening, we performed concentration-dependent assays and counter assays with PAH-PASMCs and PASMCs from healthy donors. We also performed apoptosis assays and mechanistic analysis for inflammation, reactive oxygen species (ROS), and mitochondrial function.
Results
We found that celastramycin, a benzoyl pyrrole-type compound originally found in a bacteria extract, inhibited the proliferation of PAH-PASMCs in a dose-dependent manner with minimal effects on PASMCs from healthy donors. Moreover, celastramycin inhibited proliferation with minimal increase in apoptosis and low rate of cell death. Then, we synthesized 25 analogues of celastramycin, and finally selected the lead compound that significantly inhibited proliferation of PAH-PASMCs and reduced cytosolic ROS levels. Mechanistic analysis demonstrated that celastramycin reduced the protein levels of hypoxia-inducible factor-1α, which was abnormally activated in PAH-PASMCs and impaired aerobic metabolism, and nuclear factor-κB, which induces pro-inflammatory signals, in PAH-PASMCs compared with vehicle controls, leading to reduced secretion of inflammatory cytokines. Importantly, celastramycin treatment reduced the ROS levels in PAH-PASMCs with increased protein levels of NF-E2-related factor 2 (Nrf2), a master regulator of cellular response against oxidative stress. Furthermore, celastramycin treatment improved mitochondrial energy metabolism with recovered mitochondrial network formation in PAH-PASMCs. We also discovered that celastramycin-mediated effects on these transcriptional modulators could be regulated by zinc finger C3H1 domain-containing protein, which is a binding partner of celastramycin. Finally, celastramycin treatment ameliorated pulmonary hypertension in three experimental animal models of PH in mice and rats, accompanied by reduced inflammatory changes in the lungs.
Conclusions
These results indicate that celastramycin ameliorates pulmonary hypertension through inhibition of excessive proliferation of PAH-PASMCs, for which its anti-inflammatory and beneficial effects on mitochondrial energy metabolism may be involved. Thus, celastramycin could be a novel drug for PAH as it exerts anti-proliferative effects on PAH-PASMCs.
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Affiliation(s)
- R Kurosawa
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - K Satoh
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - N Kikuchi
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - T Satoh
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - J Omura
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - M Nogi
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - S Sunamura
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - T Ohtsuki
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - N Yaoita
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - M Abdul Hai Siddique
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - M E Al-Mamun
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - T Shimizu
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - H Shimokawa
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
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16
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Kikuchi N, Satoh K, Satoh T, Omura J, Kurosawa R, Nogi M, Sunamura S, Siddique MAH, Miyata S, Misu H, Saito Y, Shimokawa H. P6479Diagnostic and prognostic significance of serum levels of selenoprotein P in patients with pulmonary arterial hypertension. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.1070] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Despite the recent progress in upfront combination therapy for pulmonary arterial hypertension (PAH), a useful biomarker for the disorder still remains to be developed. Selenoprotein P (SeP) is a glycoprotein secreted mainly from hepatocytes but also from other various kinds of cells, including pulmonary artery smooth muscle cells (PASMCs), to maintain selenium homeostasis and cellular energy metabolism. We have recently demonstrated that SeP expression in PASMCs is markedly up-regulated in PAH patients and plays crucial roles in the pathogenesis of the disorder. In this study, we thus examined whether serum levels of SeP could be a useful biomarker for the disorder.
Methods
In the experimental study, we performed gene expression microarray and in silico analyses to identify a novel therapeutic target for PAH. We also used the lung, serum, and cultured PAMSCs derived from patients with PAH for mechanistic experiments. In the clinical study, we enrolled a total of 65 consecutive patients with PAH who underwent right heart catheterization for hemodynamic assessment. We measured serum SeP levels and evaluated their prognostic impacts during follow-up (mean 1,520 days, IQR: 1,393–1,804 days). Serum SeP level was measured using a newly developed sol particle homogeneous immunoassay. As controls, we collected serum samples from 20 controls without any known cardiac disorders evaluated by hematological examination, echocardiography, and coronary angiography. In PAH patients, we examined the relationship between baseline SeP levels and composite endpoint of all-cause death and lung transplantation. The correlation between the absolute changes in SeP and those in hemodynamic parameters during follow-up were also examined.
Results
In the experimental study, SeP promoted PASMC proliferation through increased oxidative stress and mitochondrial metabolic dysfunction, which were associated with activated HIF-1α and dysregulated glutathione metabolism. In the clinical study, PAH patients showed significantly higher levels of serum SeP compared with controls (3.07±0.57 vs. 2.43±0.25 mg/L, P<0.0001). Higher SeP levels (cut-off point, 3.47 mg/L) were significantly associated with the composite endpoint of all-cause death and lung transplantation in PAH patients [HR: 4.85 (1.42 to 16.6), P<0.01]. Importantly, we found that absolute changes in SeP levels in PAH patients significantly correlated with those in mean pulmonary artery pressure, pulmonary vascular resistance, and cardiac index in response to PAH-specific therapy (R=0.78, 0.76, and −0.71, respectively, all P<0.0001). Furthermore, the increases in SeP levels during follow-up predicted the poor outcome in PAH patients [Figure, HR: 4.29 (1.27 to 14.4), P<0.05].
Figure 1
Conclusions
These results indicate that SeP is a novel therapeutic target of PAH and that serum SeP levels are a novel biomarker for diagnosis and assessment of treatment efficacy and long-term prognosis in PAH patients.
Acknowledgement/Funding
Grants-in-aid for Scientific Research from the Japan Agency for Medical Research and Development, Tokyo, Japan (16ek0109176h0001, 17ek0109227h0001).
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Affiliation(s)
- N Kikuchi
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - K Satoh
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - T Satoh
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - J Omura
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - R Kurosawa
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - M Nogi
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - S Sunamura
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - M A H Siddique
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - S Miyata
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - H Misu
- Kanazawa University Graduate School of Medicine, Department of Endocrinology and Metabolism, Kanazawa, Japan
| | - Y Saito
- Tohoku University, Laboratory of Molecular and Biochemical Toxicology, Sendai, Japan
| | - H Shimokawa
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
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Waki K, Ueda K, Satoh K, Ogino K, Hayashi T, Arakaki Y. P3735Incidence of bicuspid aortic valve in 16,185 neonates by echocardiographic screening in a single institution: is it really congenial? Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0589] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Bicuspid aortic valve (BAV) has been reported to be the most common congenital heart disease with an incidence of 1 to 2% in the general population; however, its incidence in neonates is still unclear because most of the reported incidence data are based on surgical or autopsy cases in adults.
Purpose
To elucidate the true incidence of congenital isolated BAV in neonates by echocardiographic screening in a population-based study.
Methods
We examined a total of 16,185 full-term neonates (male, 48.9%) born in our institution during either of the following two periods: September 1986 to February 2008 and October 2014 to September 2017. Mean gestational age (range) was 39.4 (36 to 42) weeks, and mean birth weight (range) was 3075 (2268 to 4622) g. On the second day after birth, we performed echocardiography and colour-Doppler flow mapping in all subjects. BAV was classified into two types on the basis of morphologicfindings in the parasternal short axis view of the aortic valve: BAV with raphe harbouring two cusps and commissures, showing a congenital fusion of two underdeveloped cusps, and BAV without raphe, showing a fish mouth appearance in systolic images. BAV associated with other congenital heart diseases such as coarctation of the aorta was excluded from this study.
Results
BAV was identified in 14 neonates (0.09%), an incidence of 0.9 in 1,000 live births. Of the 14 BAV neonates, five had BAV with raphe, whereas nine had BAV without raphe. Of the five BAV neonates with raphe, four had fusion of the right and noncoronary cusps, whereas one had that of the right and left coronary cusps. No aortic regurgitation was detected except trivial one in only one neonate, and no significant valvar stenosis was detected.
Conclusion
The incidence of BAV in neonates was much lower than previously reported incidence data. An acquired fusion of the cusps may develop in later life, and eventually may result in increased incidence of functional BAV.
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Affiliation(s)
- K Waki
- Kurashiki Central Hospital, Kurashiki, Japan
| | - K Ueda
- Kurashiki Central Hospital, Kurashiki, Japan
| | - K Satoh
- Kurashiki Central Hospital, Kurashiki, Japan
| | - K Ogino
- Kurashiki Central Hospital, Kurashiki, Japan
| | - T Hayashi
- Kurashiki Central Hospital, Kurashiki, Japan
| | - Y Arakaki
- Kurashiki Central Hospital, Kurashiki, Japan
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18
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Onodera M, Satoh K, Nakanishi Y, Kobayashi Y, Takesono S, Nakajima T, Shigeno T. Yeast cell production from vegetable oil. N Biotechnol 2018. [DOI: 10.1016/j.nbt.2018.05.1151] [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: 10/28/2022]
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19
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Okazaki T, Tamai K, Shibuya R, Nakamura M, Mochizuki M, Yamaguchi K, Abe J, Takahashi S, Satoh K. P1.03-31 Periostin is a Negative Prognostic Factor and Promotes Cancer Cell Proliferation in Non-Small Cell Lung Cancer. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.712] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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20
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Konno R, Tatebe S, Sugimura K, Satoh K, Aoki T, Yamamoto S, Sato H, Kozu K, Adachi O, Kimura M, Saiki Y, Shimokawa H. P5478Hepatitis C virus positivity adversely affects systemic ventricular function and long-term prognosis in patients with adult congenital heart disease. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p5478] [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)
- R Konno
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - S Tatebe
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - K Sugimura
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - K Satoh
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - T Aoki
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - S Yamamoto
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - H Sato
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - K Kozu
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - O Adachi
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Surgery, Sendai, Japan
| | - M Kimura
- Tohoku University Graduate School of Medicine, Department of Pediatrics, Sendai, Japan
| | - Y Saiki
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Surgery, Sendai, Japan
| | - H Shimokawa
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
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21
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Satoh K, Miyata S, Miura M, Ohtsuki T, Nochioka K, Sunamura S, Nogi M, Kurosawa R, Kikuchi N, Satoh T, Aoki T, Tatebe S, Sugimura K, Sakata Y, Shimokawa H. 1095Prognostic impacts of soluble form of basigin in patients with chronic heart failure - from a prospective large clinical trial with 1,147 patients. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.1095] [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: 11/14/2022] Open
Affiliation(s)
- K Satoh
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - S Miyata
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - M Miura
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - T Ohtsuki
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - K Nochioka
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - S Sunamura
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - M Nogi
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - R Kurosawa
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - N Kikuchi
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - T Satoh
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - T Aoki
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - S Tatebe
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - K Sugimura
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - Y Sakata
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
| | - H Shimokawa
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine, Sendai, Japan
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22
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Mirhendi H, Nishiyama Y, Rezaei-Matehkolaei A, Satoh K, Makimura K. Erratum for Mirhendi et al., the first case of onychomycosis in a koala (Phascolarctos cinereus) due to atypical isolates of Microsporum gypseum, a diagnostic challenge. Curr Med Mycol 2018; 4:35. [PMID: 30186993 PMCID: PMC6101153 DOI: 10.18502/cmm.4.1.34] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Affiliation(s)
- H Mirhendi
- Department of Medical Parasitology & Mycology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.,Department of Medical Parasitology & Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Y Nishiyama
- Teikyo University Institute of Medical Mycology, Tokyo, Japan
| | - A Rezaei-Matehkolaei
- Department of Medical Mycology, School of Medicine, Health Research Institute, Infectious and Tropical Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - K Satoh
- General Medical Education and Research Center, Teikyo University, Tokyo, Japan
| | - K Makimura
- General Medical Education and Research Center, Teikyo University, Tokyo, Japan
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23
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Shigekiyo T, Uno Y, Tomonari A, Satoh K, Hondo H, Ueda S, Saito S. Type I Congenital Plasminogen Deficiency Is not a Risk Factor for Thrombosis. Thromb Haemost 2018. [DOI: 10.1055/s-0038-1648410] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
SummaryThe risk of thrombosis in type I congenital plasminogen (PLG) deficiency has been suggested, but is still not confirmed. We studied 40 members of two unrelated families with this disease, and found that 21 were heterozygotes of type I congenital PLG deficiency. Three of them had thrombosis, but the other 18 had no thrombosis. The percentages of family members with no history of thrombosis up to a given age among subjects with type I congenital PLG deficiency and healthy controls were analyzed by the Kaplan-Meier method. No significant difference between the two groups was observed by the generalized Wilcoxon test (p = 0.23). These results suggest that there is no significant correlation between type I congenital PLG deficiency and thrombosis.
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Affiliation(s)
- T Shigekiyo
- The First Department of Internal Medicine, The University of Tokushima, Tokushima, Japan
| | - Y Uno
- The First Department of Internal Medicine, The University of Tokushima, Tokushima, Japan
| | - A Tomonari
- The First Department of Internal Medicine, The University of Tokushima, Tokushima, Japan
| | - K Satoh
- Department of Neurological Surgery, School of Medicine, The University of Tokushima, Tokushima, Japan
| | - H Hondo
- Department of Neurological Surgery, School of Medicine, The University of Tokushima, Tokushima, Japan
| | - S Ueda
- Department of Neurological Surgery, School of Medicine, The University of Tokushima, Tokushima, Japan
| | - S Saito
- The First Department of Internal Medicine, The University of Tokushima, Tokushima, Japan
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24
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Sasaki T, Shirai T, Tsukiji N, Otake S, Tamura S, Ichikawa J, Osada M, Satoh K, Ozaki Y, Suzuki-Inoue K. Functional characterization of recombinant snake venom rhodocytin: rhodocytin mutant blocks CLEC-2/podoplanin-dependent platelet aggregation and lung metastasis. J Thromb Haemost 2018; 16:960-972. [PMID: 29488681 DOI: 10.1111/jth.13987] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [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: 07/05/2017] [Indexed: 12/11/2022]
Abstract
Essentials We generated recombinant rhodocytin that could aggregate platelets via CLEC-2. Recombinant wild-type rhodocytin formed heterooctamer with four α- and β-subunits. Asp 4 in α-subunit of rhodocytin was required for binding to CLEC-2. Inhibitory mutant of rhodocytin blocked podoplanin-dependent hematogenous metastasis. SUMMARY Background Rhodocytin, a disulfide-linked heterodimeric C-type lectin from Calloselasma rhodostoma consisting of α-subunits and β-subunits, induces platelet aggregation through C-type lectin-like receptor 2 (CLEC-2). CLEC-2 is a physiological binding partner of podoplanin (PDPN), which is expressed on some tumor cell types, and is involved in tumor cell-induced platelet aggregation and tumor metastasis. Thus, modified rhodocytin may be a possible source of anti-CLEC-2 drugs for both antiplatelet and antimetastasis therapy. However, its molecular function has not been well characterized, because of the lack of recombinant rhodocytin that induces platelet aggregation. Objective To produce recombinant rhodocytin, in order to verify its function with mutagenesis, and to develop an anti-CLEC-2 drug based on the findings. Methods We used Chinese hamster ovary cells to express recombinant rhodocytin (wild-type [WT] and mutant), which was analyzed for induction/inhibition of platelet aggregation with light transmission aggregometry, the formation of multimers with blue native PAGE, and binding to CLEC-2 with flow cytometry. Finally, we investigated whether mutant rhodocytin could suppress PDPN-induced metastasis in an experimental lung metastasis mouse model. Results Functional WT] rhodocytin (αWTβWT) was obtained by coexpression of both subunits. Asp4 in α-subunits of rhodocytin was required for CLEC-2 binding. αWTβWT formed a heterooctamer similarly to native rhodocytin. Moreover, an inhibitory mutant of rhodocytin (αWTβK53A/R56A), forming a heterotetramer, bound to CLEC-2 without inducing platelet aggregation, and blocked CLEC-2-PDPN interaction-dependent platelet aggregation and experimental lung metastasis. Conclusion These findings provide molecular characterization information on rhodocytin, and suggest that mutant rhodocytin could be used as a therapeutic agent to target CLEC-2.
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Affiliation(s)
- T Sasaki
- Department of Clinical and Laboratory Medicine, Faculty of Medicine, University of Yamanashi, Kofu, Japan
| | - T Shirai
- Department of Clinical and Laboratory Medicine, Faculty of Medicine, University of Yamanashi, Kofu, Japan
| | - N Tsukiji
- Department of Clinical and Laboratory Medicine, Faculty of Medicine, University of Yamanashi, Kofu, Japan
| | | | - S Tamura
- Department of Pathophysiological Laboratory Sciences, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - J Ichikawa
- Department of Orthopedic Surgery, Faculty of Medicine, University of Yamanashi, Kofu, Japan
| | - M Osada
- School of Medical Technology, Gunma Paz University, Takasaki, Japan
| | - K Satoh
- Division of Laboratory Medicine, University of Yamanashi Hospital, Kofu, Japan
| | - Y Ozaki
- Fuefuki Central Hospital, Fuefuki, Japan
| | - K Suzuki-Inoue
- Department of Clinical and Laboratory Medicine, Faculty of Medicine, University of Yamanashi, Kofu, Japan
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25
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Sato Y, Honda Y, Kaji M, Asoh T, Hosokawa K, Kondo I, Satoh K. Retracted: Amelioration of Osteoporosis by Menatetrenone in Elderly Female Parkinson’s Disease Patients With Vitamin D Deficiency. Bone 2018; 106:212. [PMID: 29278315 DOI: 10.1016/j.bone.2017.10.006] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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26
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Mitachi S, Satoh K, Shimoyama K, Satoh M. Compact optical fiber-type sleep apnea syndrome sensor. Sleep Med 2017. [DOI: 10.1016/j.sleep.2017.11.661] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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27
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Murakami A, Yasuhira S, Mayama H, Miura H, Maesawa C, Satoh K. Characterization of PAX9 variant P20L identified in a Japanese family with tooth agenesis. PLoS One 2017; 12:e0186260. [PMID: 29023497 PMCID: PMC5638407 DOI: 10.1371/journal.pone.0186260] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 09/28/2017] [Indexed: 12/29/2022] Open
Abstract
Transcription factors PAX9 and MSX1 play crucial roles in the development of permanent teeth at the bud stage, and their loss-of-function variants have been associated with congenital tooth agenesis. We sequenced the coding regions of the PAX9 and MSX1 genes from nine patients with non-syndromic tooth agenesis, and identified a missense mutation, P20L, of PAX9 in a single familial case involving three patients in two generations. Identical mutation was previously reported by other authors, but has not been characterized in detail. The mutation was located in a highly conserved N-terminal subdomain of the paired domain and co-segregated as a heterozygote with tooth agenesis. The patients showed defects primarily in the first and second molars, which is typical for cases attributable to PAX9 mutation. Luciferase reporter assay using the 2.3-kb promoter region of BMP4 and electrophoretic mobility shift assay using the CD19-2(A-ins) sequence revealed that P20L substitution eliminated most of the transactivation activity and specific DNA binding activity of PAX9 under the experimental conditions we employed, while some residual activity of the mutant was evident in the former assay. The hypomorphic nature of the variant may explain the relatively mild phenotype in this case, as compared with other PAX9 pathogenic variants such as R26W.
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Affiliation(s)
- Akiko Murakami
- Department of Developmental Oral Health Science, School of Dentistry, Iwate Medical University, Uchimaru, Morioka, Iwate, Japan
| | - Shinji Yasuhira
- Department of Tumor Biology, Institute of Biomedical Sciences, Iwate Medical University, Nishitokuta, Yahaba-cho, Shiwa-gun, Iwate, Japan
- * E-mail:
| | - Hisayo Mayama
- Department of Developmental Oral Health Science, School of Dentistry, Iwate Medical University, Uchimaru, Morioka, Iwate, Japan
| | - Hiroyuki Miura
- Department of Oral Medicine, School of Dentistry, Iwate Medical University, Uchimaru, Morioka, Iwate, Japan
| | - Chihaya Maesawa
- Department of Tumor Biology, Institute of Biomedical Sciences, Iwate Medical University, Nishitokuta, Yahaba-cho, Shiwa-gun, Iwate, Japan
| | - Kazuro Satoh
- Department of Developmental Oral Health Science, School of Dentistry, Iwate Medical University, Uchimaru, Morioka, Iwate, Japan
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28
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Satoh K, Nishida N, Shirabe S. Biomarkers for human prion disease : Results from the creutzfeldt–jakob disease surveillance committee in Japan. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.305] [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]
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29
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Aoki T, Sugimura K, Tatebe S, Miura M, Yamamoto S, Yaoita N, Suzuki H, Sato H, Kozu K, Konno R, Nochioka K, Satoh K, Shimokawa H. 5999Comprehensive evaluation of the effectiveness and safety of balloon pulmonary angioplasty for inoperable chronic thromboembolic pulmonary hypertension - long-term effects and complications. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.5999] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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30
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Al-Mamun M, Satoh K, Satoh T, Yaoita N, Siddique M, Kikuchi N, Omura J, Kurosawa R, Sunamura S, Nogi M, Ohtsuki T, Shimokawa H. P4926Rivaroxaban prevents the development of chronic thromboembolic pulmonary hypertension in mice - Novel beneficial effects of the FXa inhibitor. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.p4926] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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31
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Satoh T, Satoh K, Yaoita N, Al-Mamun M, Siddique M, Kikuchi N, Omura J, Kurosawa R, Sunamura S, Nogi M, Otsuki T, Miyata S, Shimokawa H. 1983Thrombin activatable fibrinolysis inhibitor promotes development of chronic thromboembolic pulmonary hypertension -A possible novel therapeutic target-. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.1983] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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32
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Tatebe S, Sugimura K, Aoki T, Yamamoto S, Yaoita N, Sato H, Konno R, Satoh K, Shimokawa H. P1344Balloon pulmonary angioplasty ameliorates long-term survival of patients with inoperable chronic thromboembolic pulmonary hypertension. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p1344] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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33
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Inoue M, Yamada J, Aomatsu-Kikuchi E, Satoh K, Kondo H, Ishisaki A, Chosa N. SCRG1 suppresses LPS-induced CCL22 production through ERK1/2 activation in mouse macrophage Raw264.7 cells. Mol Med Rep 2017; 15:4069-4076. [PMID: 28440453 PMCID: PMC5436279 DOI: 10.3892/mmr.2017.6492] [Citation(s) in RCA: 12] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Accepted: 04/06/2017] [Indexed: 12/11/2022] Open
Abstract
Recently, we identified the scrapie responsive gene 1 (SCRG1) secreted from mesenchymal stem cells (MSCs) and its receptor bone marrow stromal cell antigen 1 (BST1) as positive regulators of stem cell qualities such as self-renewal, migration abilities, and osteogenic differentiation potential. Here, we examined the effect of the paracrine activity of SCRG1 in macrophages. The mouse macrophage-like cell line Raw264.7 expressed BST1/β1 or BST1/β2 integrin as possible SCRG1 receptors. Unexpectedly, recombinant SCRG1 did not enhance cell proliferation, migration, or adhesion in these macrophages. However, further examination of the effect of SCRG1 in Raw264.7 cells did reveal a potent anti-inflammatory effect whereby SCRG1 suppressed LPS-induced CCL22 production. SCRG1 also induced the phosphorylation of extracellular signal-regulated kinase 1/2 (ERK1/2) in these cells and, moreover, a mitogen-activated protein kinase (MAPK)/ERK kinase inhibitor U0126 significantly suppressed the effect of SCRG1 on LPS-induced chemokine CCL22 production. Taken together, these data indicate that SCRG1 signals through the MAPK pathway and suppresses the LPS signaling pathway. CCL22 is generally known to be chemotactic for monocytes, dendritic cells, natural killer cells and chronically activated T lymphocytes, suggesting that MSC-derived SCRG1 may block infiltration of these cells. A mechanism is proposed by which MSCs play their immunosuppressive role through suppressing chemokine expression in monocyte/macrophage lineage cells.
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Affiliation(s)
- Manabu Inoue
- Division of Cellular Biosignal Sciences, Department of Biochemistry, Iwate Medical University, Yahaba, Iwate 028‑3694, Japan
| | - Junko Yamada
- Division of Cellular Biosignal Sciences, Department of Biochemistry, Iwate Medical University, Yahaba, Iwate 028‑3694, Japan
| | - Emiko Aomatsu-Kikuchi
- Division of Cellular Biosignal Sciences, Department of Biochemistry, Iwate Medical University, Yahaba, Iwate 028‑3694, Japan
| | - Kazuro Satoh
- Division of Orthodontics, Department of Developmental Oral Health Science, Iwate Medical University School of Dentistry, Morioka, Iwate 020‑8505, Japan
| | - Hisatomo Kondo
- Department of Prosthodontics and Oral Implantology, Iwate Medical University School of Dentistry, Morioka, Iwate 020‑8505, Japan
| | - Akira Ishisaki
- Division of Cellular Biosignal Sciences, Department of Biochemistry, Iwate Medical University, Yahaba, Iwate 028‑3694, Japan
| | - Naoyuki Chosa
- Division of Cellular Biosignal Sciences, Department of Biochemistry, Iwate Medical University, Yahaba, Iwate 028‑3694, Japan
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Shirai T, Inoue O, Tamura S, Tsukiji N, Sasaki T, Endo H, Satoh K, Osada M, Sato-Uchida H, Fujii H, Ozaki Y, Suzuki-Inoue K. C-type lectin-like receptor 2 promotes hematogenous tumor metastasis and prothrombotic state in tumor-bearing mice. J Thromb Haemost 2017; 15:513-525. [PMID: 28028907 DOI: 10.1111/jth.13604] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [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: 03/22/2016] [Indexed: 01/01/2023]
Abstract
Essentials The role of C-type lectin-like receptor-2 (CLEC-2) in cancer progression is unclear. CLEC-2-depleted mouse model is generated by using a rat anti-mouse CLEC-2 monoclonal antibody. CLEC-2 depletion inhibits hematogenous tumor metastasis of podoplanin-expressing B16F10 cells. CLEC-2 depletion prolongs cancer survival by suppressing thrombosis and inflammation. SUMMARY Background C-type lectin-like receptor 2 (CLEC-2) is a platelet activation receptor of sialoglycoprotein podoplanin, which is expressed on the surface of certain types of tumor cells. CLEC-2-podoplanin interactions facilitate hematogenous tumor metastasis. However, direct evidence of the role of CLEC-2 in hematogenous metastasis and cancer progression is lacking. Objective and methods We generated immunological CLEC-2-depleted mice by using anti-mouse CLEC-2 monoclonal antibody 2A2B10 and investigated whether CLEC-2 promoted hematogenous tumor metastasis and tumor growth and exacerbated the prognosis of mice bearing podoplanin-expressing B16F10 melanoma cells. Results Our results showed that hematogenous metastasis was significantly inhibited in CLEC-2-depleted mice. B16F10 cells co-cultured with wild-type platelets, but not with CLEC-2-deficient platelets, showed increased proliferation. However, B16F10 cell proliferation was not inhibited in CLEC-2-depleted mice. Histological analysis showed that thrombus formation in tumor vessels was significantly inhibited and functional vessel density was significantly increased in CLEC-2-depleted mice. These data suggest that CLEC-2 deficiency may inhibit thrombus formation in tumor vessels and increase the density of functional vessels, thus improving oxygen and nutrient supply to tumors, indirectly promoting tumor proliferation. Furthermore, the overall survival of CLEC-2-depleted mice was significantly prolonged, which may be due to the suppression of thrombus formation in the lungs and subsequent inhibition of systemic inflammation and cachexia. Conclusions These data provide a rationale for the targeted inhibition of CLEC-2 as a new strategy for preventing hematogenous tumor metastasis and for inhibiting cancer-related thromboembolism.
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Affiliation(s)
- T Shirai
- Department of Clinical and Laboratory Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - O Inoue
- Infection Control Office, Yamanashi University Hospital, Yamanashi, Japan
| | - S Tamura
- Department of Pathophysiological Laboratory Sciences, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - N Tsukiji
- Department of Clinical and Laboratory Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - T Sasaki
- Department of Clinical and Laboratory Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - H Endo
- Department of Food Science and Nutrition, School of Human Cultures, University of Shiga Prefecture, Shiga, Japan
| | - K Satoh
- Division of Laboratory Medicine, Yamanashi University Hospital, Yamanashi, Japan
| | - M Osada
- Division of Laboratory Medicine, Yamanashi University Hospital, Yamanashi, Japan
- School of Medical Technology, Faculty of Health Science, Gumma Paz College, Takasaki, Japan
| | - H Sato-Uchida
- Department of Clinical Nursing, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - H Fujii
- First Department of Surgery, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Y Ozaki
- Department of Clinical and Laboratory Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - K Suzuki-Inoue
- Department of Clinical and Laboratory Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
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Yokota S, Chosa N, Kyakumoto S, Kimura H, Ibi M, Kamo M, Satoh K, Ishisaki A. ROCK/actin/MRTF signaling promotes the fibrogenic phenotype of fibroblast-like synoviocytes derived from the temporomandibular joint. Int J Mol Med 2017; 39:799-808. [PMID: 28259960 PMCID: PMC5360431 DOI: 10.3892/ijmm.2017.2896] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [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: 10/26/2016] [Accepted: 01/30/2017] [Indexed: 12/19/2022] Open
Abstract
Malocclusion caused by abnormal jaw development or muscle overuse during mastication results in abnormal mechanical stress to the tissues surrounding the temporomandibular joint (TMJ). Excessive mechanical stress against soft and hard tissues around the TMJ is involved in the pathogenesis of inflammatory diseases, including osteoarthritis (OA). OA-related fibrosis is a possible cause of joint stiffness in OA. However, cellular and molecular mechanisms underlying fibrosis around the TMJ remain to be clarified. Here, we established a cell line of fibroblast‑like synoviocytes (FLSs) derived from the mouse TMJ. Then, we examined whether the Rho‑associated coiled‑coil forming kinase (ROCK)/actin/myocardin-related transcription factor (MRTF) gene regulatory axis positively regulates the myofibroblast (MF) differentiation status of FLSs. We found that i) FLSs extensively expressed the MF markers α‑smooth muscle actin (α‑SMA) and type I collagen; and ii) an inhibitor against the actin‑polymerizing agent ROCK, Y‑27632; iii) an actin-depolymerizing agent cytochalasin B; iv) an inhibitor of the MRTF/serum response factor‑regulated transcription, CCG‑100602, clearly suppressed the mRNA levels of α‑SMA and type I collagen in FLSs; and v) an MF differentiation attenuator fibroblast growth factor‑1 suppressed filamentous actin formation and clearly suppressed the mRNA levels of α-SMA and type I collagen in FLSs. These results strongly suggest that the ROCK/actin/MRTF axis promotes the fibrogenic activity of synoviocytes around the TMJ. Our findings partially clarify the molecular mechanisms underlying the emergence of TMJ‑OA and may aid in identifying drug targets for treating this condition at the molecular level.
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Affiliation(s)
- Seiji Yokota
- Division of Cellular Biosignal Sciences, Department of Biochemistry, Iwate Medical University, Iwate 028‑3694, Japan
| | - Naoyuki Chosa
- Division of Cellular Biosignal Sciences, Department of Biochemistry, Iwate Medical University, Iwate 028‑3694, Japan
| | - Seiko Kyakumoto
- Division of Cellular Biosignal Sciences, Department of Biochemistry, Iwate Medical University, Iwate 028‑3694, Japan
| | - Hitomichi Kimura
- Division of Orthodontics, Department of Developmental Oral Health Science, Iwate Medical University, Iwate 020‑8505, Japan
| | - Miho Ibi
- Division of Cellular Biosignal Sciences, Department of Biochemistry, Iwate Medical University, Iwate 028‑3694, Japan
| | - Masaharu Kamo
- Division of Cellular Biosignal Sciences, Department of Biochemistry, Iwate Medical University, Iwate 028‑3694, Japan
| | - Kazuro Satoh
- Division of Orthodontics, Department of Developmental Oral Health Science, Iwate Medical University, Iwate 020‑8505, Japan
| | - Akira Ishisaki
- Division of Cellular Biosignal Sciences, Department of Biochemistry, Iwate Medical University, Iwate 028‑3694, Japan
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Hatakeyama S, Ando Y, Miura H, Satoh K, Fujimura A. Lymphatic Architecture of Suncus Murinus (House Musk Shrew) Palatum. Lymphology 2017; 50:95-108. [PMID: 30234246] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The architecture of craniocervical lymphatic vessels in rodents has been examined previously. In the present study, we evaluated the distribution of collecting lymphatic vessels in the palate of Suncus, which is known to retain the prototype of placental mammals and is more similar to humans in terms of jaw bone morphology when compared with rodents. Three-dimensional reconstructed images of the Suncus palatum revealed that the collecting lymphatic vessels were connected to each other via smaller branches, and ran in an antero-posterior direction in the periosteum. The vessels entered the pair of posterior palatine foramina located near the fourth premolar or the first molar bilaterally, coursed through the posterior palatine canals, and reached the pterygopalatine fossa positioned posteriorly in the palate. The collecting lymphatic vessels changed directions from medial to superior to lateral while wrapping around arteries during their course, perhaps to enable the smooth transition from the palate to the deep cervical node. Inefficient lymphatic flow in humans is attributed to the superior location of the pterygopalatine fossa in the palate when compared with its location in the Suncus.
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Affiliation(s)
- S Hatakeyama
- Department of Oral Health Enhancement, Division of Orthodontics, School of Dentistry, Iwate Medical University, Japan
| | - Y Ando
- Department of Anatomy, Division of Functional Morphology, Iwate Medical University, Japan
| | - H Miura
- Department of General Dentistry, Division of General Dentistry Education, School of Dentistry, Iwate Medical University, Japan
| | - K Satoh
- Department of Oral Health Enhancement, Division of Orthodontics, School of Dentistry, Iwate Medical University, Japan
| | - A Fujimura
- Department of Anatomy, Division of Functional Morphology, Iwate Medical University, Japan
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Yoshiya T, Ito M, Misumi K, Hanaki H, Tsutani Y, Satoh K, Miyata Y, Okada M. The effect of rikkunshito, a traditional Japanese herbal medicine, on food intake and plasma acylated ghrelin levels in lung cancer patients treated with platinum-based chemotherapy. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw390.41] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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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Satoh K, Matsubara S, Hondoh H, Nagahiro S. Intracranial Aneurysm Embolization Using Interlocking Detachable Coils. Interv Neuroradiol 2016; 3 Suppl 2:125-8. [DOI: 10.1177/15910199970030s226] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/1997] [Accepted: 09/18/1997] [Indexed: 11/17/2022] Open
Abstract
The relationship between volume embolization ratio and coil compaction on the intracranial aneurysm occluded using interlocking detachable coils (IDCs) was determined. From February 1994 to October 1996, 7 intracranial aneurysms were embolized using IDCs. Aneurysm capacity (volume) was calculated assuming that aneurysms are ellipsoid of the diameter in 3 planes. Coil volume was calculated assuming that IDCs are cylinders of primary coil. Coil compaction was observed in aneurysms embolized at a volume embolization ratio under 25%. There was no coil compaction in aneurysms embolized at a volume embolization ratio of over 25%. Measurement of the volume embolization ratio is useful to predict coil compaction. Intracranial aneurysms should be embolized at a volume embolization ratio of 25–33%.
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Affiliation(s)
- K. Satoh
- Department of Neurological Surgery, School of Medicine, University of Tokushima; Tokushima
| | - S. Matsubara
- Department of Neurological Surgery, School of Medicine, University of Tokushima; Tokushima
| | - H. Hondoh
- Department of Neurological Surgery, School of Medicine, University of Tokushima; Tokushima
| | - S. Nagahiro
- Department of Neurological Surgery, School of Medicine, University of Tokushima; Tokushima
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Satoh K, Satomi J, Matsubara S, Nagahiro S. Measurement of Volume Ratio to Predict Coil Compaction, on Aneurysmal Embolization. Interv Neuroradiol 2016; 4 Suppl 1:179-82. [DOI: 10.1177/15910199980040s136] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/1998] [Accepted: 08/25/1998] [Indexed: 11/16/2022] Open
Abstract
The relationship between volume embolization ratio and coil compaction on the intracranial aneurysms occluded using Guglielmi detachable coils (GDCs) was determined. From March 1997 to February 1998, 38 intracranial aneurysms were embolized using GDCs. Aneurysm volume was calculated assuming that aneurysms are ellipsoids of the diameter in three planes. Coil volume was calculated assuming that detachable coils are cylinder of primary coil. Coil compaction was observed in aneurysms embolized at a volume embolization ratio under 21%. There was no coil compaction in aneurysms embolized at a volume embolization ratio of over 21%. Measurement of the volume embolization ratio is useful to predict the coil compaction. Intracranial aneurysms should be embolized at a volume embolization ratio of 25–33%.
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Affiliation(s)
- K. Satoh
- Department of Neurological Surgery, School of Medicine, University of Tokushima; Tokushima, Japan
| | - J. Satomi
- Department of Neurological Surgery, School of Medicine, University of Tokushima; Tokushima, Japan
| | - S. Matsubara
- Department of Neurological Surgery, School of Medicine, University of Tokushima; Tokushima, Japan
| | - S. Nagahiro
- Department of Neurological Surgery, School of Medicine, University of Tokushima; Tokushima, Japan
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Satoh K, Satomi J, Nakajima N, Nagahiro S. Endovascular Treatment Using Detachable Coils for Non-Ruptured Intracranial Aneurysm. Interv Neuroradiol 2016; 5 Suppl 1:67-70. [DOI: 10.1177/15910199990050s112] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/1999] [Accepted: 09/30/1999] [Indexed: 11/17/2022] Open
Abstract
Detachable coil embolization was performed on 34 non-ruptured cerebral aneurysms in 33 patients. Patients consisted of 28 females and five males, with an age range of 26 to 77 years. Angiographic examination after coil embolization revealed complete or near-complete occlusion in 24 aneurysms (70.5%) and partial occlusion in three (8.8%). Detachable coil embolization was attempted unsuccessfully in seven aneurysms (20.5%). Transient ischemic attack occurred in one case with coil migration. The combined mortality/morbidity rate was 0%.
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Affiliation(s)
- K. Satoh
- Department of Neurological Surgery, School of Medicine; The University of Tokushima
| | - J. Satomi
- Department of Neurological Surgery, School of Medicine; The University of Tokushima
| | - N. Nakajima
- Department of Neurological Surgery, School of Medicine; The University of Tokushima
| | - S. Nagahiro
- Department of Neurological Surgery, School of Medicine; The University of Tokushima
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Mirhendi H, Nishiyama Y, Rezaei-Matehkolaei A, Satoh K, Makimura K. The first case of onychomycosis in a koala ( Phascolarctos cinereus) due to atypical isolates of Microsporum gypseum, a diagnostic challenge. Curr Med Mycol 2016; 2:45-50. [PMID: 28681020 PMCID: PMC5490305 DOI: 10.18869/acadpub.cmm.2.2.2] [Citation(s) in RCA: 2] [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] [Indexed: 11/23/2022] Open
Abstract
Background and Purpose: Superficial mycotic infections have been only poorly described in koalas and there are no reliable mycologically confirmed data regarding clinical isolation of dermatophytes in this animal. We report an 11-year-old female koala, kept in a zoo in Tokyo, Japan, and presenting with hyperkeratotic lesions and scaly plaques on forepaw claws and pads reminiscent of fungal infection. Case Report: Direct microscopy of the scrapings was indicative of a dermatophyte infection. By culture and subsequent repeated subculturing of clinical specimens on Sabouraud dextrose agar, Mycobiotic agar, and potato dextrose agar, two distinct strains with different colony morphotypes (designed as types I and II) were identified. Macroscopic and microscopic characteristics of the strains were suggestive of three different species, i.e. Microsporum canis, M. gypseum, and M. fulvum. However, partial sequencing of internal transcribed spacer (ITS) region of rDNA, translation elongation factor-1α (Tef-1α), and beta-tubulin (BT2) genes confirmed the identity of both isolates as M. gypseum. The animal was treated with a continuous terbinafine regimen (250 mg/kg) once daily for 12 weeks. Conclusion: To the best of our knowledge, the present report is the first confirmed case of dermatophytosis in a koala. The genetics underlying a variety of phenotypic traits in most classical dermatophyte species are unknown, and further studies are needed to understand this phenomenon.
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Affiliation(s)
- H Mirhendi
- Department of Medical Parasitology & Mycology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.,Department of Medical Parasitology & Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Y Nishiyama
- Teikyo University Institute of Medical Mycology, Tokyo, Japan
| | - A Rezaei-Matehkolaei
- Department of Medical Mycology, School of Medicine, Health Research Institute, Infectious and Tropical Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - K Satoh
- General Medical Education and Research Center, Teikyo University, Tokyo, Japan
| | - K Makimura
- General Medical Education and Research Center, Teikyo University, Tokyo, Japan
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Sanjo N, Tsukamoto T, Furukawa F, Higuma M, Hizume M, Nakamura Y, Satoh K, Kitamoto T, Yamada M, Yokota T, Mizusawa H. Human prion diseases in Japan: a prospective surveillance from 1999. J Neurol Sci 2015. [DOI: 10.1016/j.jns.2015.08.438] [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: 11/25/2022]
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Satoh K, Suzuki T, Tsuji T, Okuno E, Kogo M. Surgical planning in an aged patient with unoperated cleft palate using functional evaluations by a 320-row area detector CT. Int J Oral Maxillofac Surg 2015. [DOI: 10.1016/j.ijom.2015.08.779] [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]
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Tonda T, Satoh K, Kamo KI. Detecting a Cohort Effect for Cancer Mortality Data using Varying Coefficient Model. Int J Epidemiol 2015. [DOI: 10.1093/ije/dyv097.243] [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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45
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Mizuno Y, Ishikawa T, Ishida J, Kobayashi A, Konakahara Y, Yokosuka J, Oikawa T, Saeki C, Kitahara T, Satoh K, Amano K, Hama H, Hokari A. MON-PP067: The Relationship Between Nutritional Condition and Neuropsychological test Results in Liver Cirrhosis Patients. Clin Nutr 2015. [DOI: 10.1016/s0261-5614(15)30499-4] [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: 10/23/2022]
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46
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Furukawa S, Kuwajima Y, Chosa N, Satoh K, Ohtsuka M, Miura H, Kimura M, Inoko H, Ishisaki A, Fujimura A, Miura H. Establishment of immortalized mesenchymal stem cells derived from the submandibular glands of tdTomato transgenic mice. Exp Ther Med 2015; 10:1380-1386. [PMID: 26622494 PMCID: PMC4578048 DOI: 10.3892/etm.2015.2700] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [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] [Received: 09/13/2014] [Accepted: 07/29/2015] [Indexed: 01/14/2023] Open
Abstract
Transgenic mice that overexpress the red fluorescent protein tdTomato (tdTomato mice) are well suited for use in regenerative medicine studies. Cultured cells from this murine model exhibit strong red fluorescence, enabling real-time in vivo imaging through the body surface of grafted animals. Mesenchymal stem cells (MSCs) have marked potential for use in cell therapy and regenerative medicine; however, the mechanisms that regulate their dynamics in vivo are poorly understood. In the present study, an MSC line was derived from the submandibular gland fibroblasts of tdTomato mice. The fluorescent signal from this cell line was observed in organs throughout the body, as well as in salivary glands. Primary culture cells derived from the submandibular gland were immortalized with SV40 large T antigen (GManSV cells); these cells exhibited increased migratory ability, as compared with those isolated from the sublingual gland. GManSV cells were tdTomato-positive and exhibited spindle-shaped fibroblastic morphology; they also robustly expressed mouse MSC markers: Stem cell antigen-1 (Sca-1), CD44, and CD90. This cell line retained multipotent stem cell characteristics, as evidenced by its ability to differentiate into both osteogenic and adipogenic lineages. These results indicate that Sca-1+/CD44+/CD90+-GManSV cells may be useful for kinetic studies of submandibular gland-derived MSCs in the context of in vitro co-culture with other types of salivary gland-derived cells. These cells may also be used for in vivo imaging studies, in order to identify novel cell therapy and regenerative medicine for the treatment of salivary gland diseases.
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Affiliation(s)
- Shinji Furukawa
- Division of Orthodontics, Department of Developmental Oral Health Science, Iwate Medical University School of Dentistry, Morioka, Iwate 020-8505, Japan
| | - Yukinori Kuwajima
- Division of Orthodontics, Department of Developmental Oral Health Science, Iwate Medical University School of Dentistry, Morioka, Iwate 020-8505, Japan
| | - Naoyuki Chosa
- Division of Cellular Biosignal Sciences, Department of Biochemistry, Iwate Medical University, Yahaba, Iwate 028-3694, Japan
| | - Kazuro Satoh
- Division of Orthodontics, Department of Developmental Oral Health Science, Iwate Medical University School of Dentistry, Morioka, Iwate 020-8505, Japan
| | - Masato Ohtsuka
- Department of Molecular Life Science, Division of Basic Medical Science and Molecular Medicine, Tokai University School of Medicine, Isehara, Kanagawa 259-1193, Japan
| | - Hiromi Miura
- Department of Molecular Life Science, Division of Basic Medical Science and Molecular Medicine, Tokai University School of Medicine, Isehara, Kanagawa 259-1193, Japan
| | - Minoru Kimura
- Department of Molecular Life Science, Division of Basic Medical Science and Molecular Medicine, Tokai University School of Medicine, Isehara, Kanagawa 259-1193, Japan
| | - Hidetoshi Inoko
- Department of Molecular Life Science, Division of Basic Medical Science and Molecular Medicine, Tokai University School of Medicine, Isehara, Kanagawa 259-1193, Japan
| | - Akira Ishisaki
- Division of Cellular Biosignal Sciences, Department of Biochemistry, Iwate Medical University, Yahaba, Iwate 028-3694, Japan
| | - Akira Fujimura
- Division of Functional Morphology, Department of Anatomy, Iwate Medical University, Yahaba, Iwate 028-3694, Japan
| | - Hiroyuki Miura
- Division of Orthodontics, Department of Developmental Oral Health Science, Iwate Medical University School of Dentistry, Morioka, Iwate 020-8505, Japan
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Ishikawa T, Mizuno Y, Ishida J, Konakahara Y, Kobayashi A, Hagiwara M, Gomi Y, Yokosuka J, Aizawa M, Saeki C, Kitahara T, Satoh K, Amano K, Hokari A, Hama H, Zeniya M, Tajiri H. PP060-MON: The Nutritional Relationship Between Nonalcoholic Fatty Liver Disease and Type 2 Diabetes. Clin Nutr 2014. [DOI: 10.1016/s0261-5614(14)50395-0] [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: 11/30/2022]
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Hayashi G, Shibato J, Imanaka T, Cho K, Kubo A, Kikuchi S, Satoh K, Kimura S, Ozawa S, Fukutani S, Endo S, Ichikawa K, Agrawal GK, Shioda S, Fukumoto M, Rakwal R. Unraveling Low-Level Gamma Radiation-Responsive Changes in Expression of Early and Late Genes in Leaves of Rice Seedlings at litate Village, Fukushima. J Hered 2014; 105:723-38. [DOI: 10.1093/jhered/esu025] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
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Tanaka K, Satoh K, Kohda A. Dose and dose-rate response of lymphocyte chromosome aberrations in mice chronically irradiated within a low-dose-rate range after age adjustment. Radiat Prot Dosimetry 2014; 159:38-45. [PMID: 24870362 DOI: 10.1093/rpd/ncu173] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The incidences of chromosome aberrations were analysed in splenic lymphocytes from mice that were continuously exposed to (137)Cs gamma rays within the low-dose-rate (LDR) range to evaluate the dose-response and dose-rate effects. Chromosome aberrations were detected by fluorescence in situ hybridisation method, and these were found to increase in frequency up to 8000 mGy at 20 mGy for 22 h d(-1) and to 700 mGy at 1 mGy for 22 h d(-1). Translocations increased in a linear quadratic manner with age in non-exposed mice. The dose-response relationship for the frequency of translocations at each dose rate (20 and 1 mGy for 22 h d(-1)) was obtained using age-adjusted multiple linear regression analysis. Values of the linear term, shown as the slope, decreased as the dose rate was reduced from 20 to 1 mGy for 22 h d(-1), indicating a positive dose-rate effect in the LDR range. These results will be useful for estimating the risk of LDR radiation exposure and radiation protection.
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Affiliation(s)
- K Tanaka
- Department of Radiobiology, Institute for Environmental Sciences, 2-121 Hachazawa, Takahoko, Rokkasho, Kamikita, Aomori 039-3213, Japan
| | - K Satoh
- Department of Environmetrics and Biometrics, Institute for Radiation Biology and Medicine, Hiroshima University, Kasumi 1-2-3, Minami-ku, Hiroshima, Hiroshima 734-8551, Japan
| | - A Kohda
- Department of Radiobiology, Institute for Environmental Sciences, 2-121 Hachazawa, Takahoko, Rokkasho, Kamikita, Aomori 039-3213, Japan
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Tsuji T, Nishide Y, Nakano H, Kida K, Satoh K. Imaging findings of necrotizing sialometaplasia of the parotid gland: case report and literature review. Dentomaxillofac Radiol 2014; 43:20140127. [PMID: 24850145 DOI: 10.1259/dmfr.20140127] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [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: 11/05/2022] Open
Abstract
Although necrotizing sialometaplasia (NS) of the parotid gland is rare and occasionally presents as a lesion that mimics a malignant tumour, imaging findings in cases of NS have been rarely reported. We describe here a case of NS in which there was an increasing lesion manifesting overnight on the parotid gland in an 83-year-old male. We also investigated the use of pre-operative imaging based on previous reports and discuss the importance of these images in helping to guard against overzealous treatment. It is critically important to closely examine whether there are aspects of NS, such as the present case, in pre-operative MRI findings that can be useful in proper diagnosis and treatment.
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Affiliation(s)
- T Tsuji
- 1 First Department of Oral and Maxillofacial Surgery, Graduate School of Dentistry, Osaka University, Suita, Osaka, Japan
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