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Yamakawa N, Umeda M, Yoshii Y, Mitsudo K, Noguchi M, Kusukawa J, Katakura A, Nakayama H, Sasaki M, Noguchi T, Ueda M, Bukawa H, Yagihara K, Horie A, Miyazaki A, Chikazu D, Tomihara K, Mishima K, Otsuru M, Asoda S, Fujiwara S, Ohyama Y, Kurita H, Kawamata H, Fukuda M, Shintani Y, Kobayashi T, Kanno T, Oh-Iwa I, Kawano K, Yamashita Y, Kobayashi W, Ohiro Y, Uzawa K, Ota Y, Kirita T. Multicenter retrospective study of nivolumab for recurrent/metastatic oral squamous cell carcinoma. Oral Dis 2024; 30:247-258. [PMID: 36519515 DOI: 10.1111/odi.14471] [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: 09/13/2022] [Revised: 12/03/2022] [Accepted: 12/11/2022] [Indexed: 12/23/2022]
Abstract
OBJECTIVES Immunotherapy with nivolumab for patients with recurrent/metastatic oral squamous cell carcinoma has not been evaluated. Here, we aimed to examine the efficacy, safety, and prognostic factors of nivolumab in these patients. MATERIALS AND METHODS This multicenter retrospective observational study involved patients who received nivolumab between April 2017 and June 2019. The patient characteristics were evaluated for association with progression-free and overall survival. Progression-free and overall survival rates were calculated; parameters that were significant in the univariate analysis were used as explanatory variables. Independent factors for progression-free and overall survival were identified using multivariate analysis. RESULTS Totally, 143 patients were included. The overall response and disease control rates were 27.3% and 46.2%, respectively. The median, 1- and 2-year progression-free survival rates were 2.7 months, 25.4%, and 19.2%, respectively; those for overall survival were 11.2 months, 47.3%, and 33.6%, respectively. The independent factors affecting progression-free survival were performance status and immune-related adverse event occurrence, whereas those affecting overall survival were performance status, target disease, and number of previous lines of systemic cancer therapy. Eight patients reported grade ≥3 immune-related adverse events. CONCLUSION Nivolumab was effective for recurrent/metastatic oral squamous cell carcinoma treatment and was well tolerated by patients.
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Affiliation(s)
- Nobuhiro Yamakawa
- Department of Oral and Maxillofacial Surgery, School of Medicine, Nara Medical University, Kashihara, Japan
| | - Masahiro Umeda
- Department of Clinical Oral Oncology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Yumi Yoshii
- Department of Cancer Genomics and Medical Oncology, Nara Medical University, Kashihara, Japan
| | - Kenji Mitsudo
- Department of Oral and Maxillofacial Surgery, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Makoto Noguchi
- Department of Oral and Maxillofacial Surgery, Faculty of Medicine, Academic Assembly, University of Toyama, Toyama, Japan
| | - Jingo Kusukawa
- Dental and Oral Medical Center, Kurume University School of Medicine, Kurume, Japan
| | - Akira Katakura
- Department of Oral Pathobiological Science and Surgery, Tokyo Dental College, Tokyo, Japan
| | - Hideki Nakayama
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Masashi Sasaki
- Department of Oral and Maxillofacial Surgery, Tokai University School of Medicine, Isehara, Japan
| | - Tadahide Noguchi
- Department of Dentistry, Oral and Maxillofacial Surgery, Jichi Medical University, Shimotsuke, Japan
| | - Michihiro Ueda
- Department of Oral Oncology, Hokkaido Cancer Center, Sapporo, Japan
| | - Hiroki Bukawa
- Department of Oral and Maxillofacial Surgery, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Kazuhiro Yagihara
- Department of Oral Surgery, Saitama Cancer Center, Kitaadachi-gun, Japan
| | - Akihisa Horie
- Department of Oral and Maxillofacial Surgery, Kanto Rosai Hospital, Kawasaki, Japan
| | - Akihiro Miyazaki
- Department of Oral Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Daichi Chikazu
- Department of Oral and Maxillofacial Surgery, Tokyo Medical University, Tokyo, Japan
| | - Kei Tomihara
- Division of Oral and Maxillofacial Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Katsuaki Mishima
- Department of Oral and Maxillofacial Surgery, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Mitsunobu Otsuru
- Department of Clinical Oral Oncology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Seiji Asoda
- Department of Dentistry and Oral Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Shigeyoshi Fujiwara
- Department of Oral and Maxillofacial Surgery, Japanese Red Cross Society Himeji Hospital, Himeji, Japan
| | - Yoshio Ohyama
- Department of Oral and Maxillofacial Surgery, Shizuoka City Shizuoka Hospital, Shizuoka, Japan
| | - Hiroshi Kurita
- Department of Dentistry and Oral Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Hitoshi Kawamata
- Department of Oral and Maxillofacial Surgery, Dokkyo Medical University School of Medicine, Shimotsuga-gun, Japan
| | - Masayuki Fukuda
- Department of Dentistry and Oral Surgery, Akita University Graduate School of Medicine, Akita, Japan
| | - Yukari Shintani
- Department of Oral and Maxillofacial Surgery, Wakayama Medical University, Wakayama, Japan
| | - Takanori Kobayashi
- Department of Dentistry and Oral Surgery, Nagaoka Red Cross Hospital, Nagaoka, Japan
| | - Takahiro Kanno
- Department of Oral and Maxillofacial Surgery, Shimane University Faculty of Medicine, Izumo, Japan
| | - Ichiro Oh-Iwa
- Department of Oral and Maxillofacial Surgery, Japanese Red Cross Aichi Medical Center Nagoya Daiichi Hospital, Nagoya, Japan
| | - Kenji Kawano
- Department of Oral and Maxillofacial Surgery, Faculty of Medicine, Oita University, Yufu, Japan
| | - Yoshio Yamashita
- Department of Oral and Maxillofacial Surgery, Faculty of Medicine, Saga University, Saga, Japan
| | - Wataru Kobayashi
- Department of Dentistry and Oral Surgery, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Yoichi Ohiro
- Oral and Maxillofacial Surgery, Faculty of Dental Medicine and Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan
| | - Katsuhiro Uzawa
- Department of Oral Science, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Yoshihide Ota
- Department of Oral and Maxillofacial Surgery, Tokai University School of Medicine, Isehara, Japan
| | - Tadaaki Kirita
- Department of Oral and Maxillofacial Surgery, School of Medicine, Nara Medical University, Kashihara, Japan
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Ohyama Y, Inaba Y, Kubota M, Kanemaru T, Hasegawa K. CT-assessed sarcopenia and prognostic nutritional index are associated with poor prognosis in oral squamous cell carcinoma. Oral Maxillofac Surg 2023:10.1007/s10006-023-01191-1. [PMID: 37935816 DOI: 10.1007/s10006-023-01191-1] [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: 06/10/2023] [Accepted: 10/29/2023] [Indexed: 11/09/2023]
Abstract
PURPOSE Recently, it has been reported that sarcopenia and nutritional evaluation are associated with the prognosis of patients with cancer; however, there are only a few detailed reports on oral cancer. This single-center retrospective study aimed to analyze the relationship between computed tomography (CT)-assessed sarcopenia (CT-SP), immunocompetence, nutritional status, and the prognosis of patients with oral squamous cell carcinoma (OSCC). METHODS This retrospective study included patients who underwent radical therapy with surgery for OSCC between January 2014 and January 2021. Skeletal muscle in the third cervical vertebra (C3) was measured using preoperative cervical CT, and the skeletal muscle index (SMI) was calculated. Nutritional status were investigated using blood tests. The correlation between each parameter and prognosis was analyzed. The primary predictor variables were SMI, ECOG performance status, BMI, and nutritional status. The primary outcome variable was the 5-year overall survival rate (OS) and the secondary outcome variable was 5-year disease-specific survival rate (DSS). RESULTS One hundred sixty-three patients were registered retrospectively. The number of patients with CT-SP was 76 (52%). In the univariate analysis, CT-SP, prognostic nutritional index (PNI), and lymphocyte-monocyte ratio (LMR) were associated with poor prognosis, with statistically significant differences in OS and DSS. In the multivariate analysis, only CT-SP was identified as an independent prognostic factor for DSS. CT-SP was significantly correlated with the PNI. CONCLUSION CT-SP was associated with a significant decrease in survival rate in patients with OSCC. Furthermore, CT-SP was correlated with the PNI.
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Affiliation(s)
- Yoshio Ohyama
- Department of Oral and Maxillofacial Surgery, Shizuoka City Shizuoka Hospital, 10-93, Outemachi, Aoi-ku, Shizuoka-shi, Shizuoka, 420-8690, Japan.
| | - Yoshinori Inaba
- Department of Oral and Maxillofacial Surgery, Shizuoka City Shizuoka Hospital, 10-93, Outemachi, Aoi-ku, Shizuoka-shi, Shizuoka, 420-8690, Japan
| | - Mako Kubota
- Department of Maxillofacial Surgery, Department of Maxillofacial Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Tomoki Kanemaru
- Department of Maxillofacial Surgery, Department of Maxillofacial Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Kazuki Hasegawa
- Department of Oral and Maxillofacial Surgery, Shizuoka City Shizuoka Hospital, 10-93, Outemachi, Aoi-ku, Shizuoka-shi, Shizuoka, 420-8690, Japan
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Ohyama Y, Yamashiro M, Michi Y, Uzawa N, Myo K, Sonoda I, Sumino J, Miura C, Mizutani M, Yamamoto D, Kayamori K, Yoda T. Determination of Significant Prognostic Factors for Maxillary Gingival Squamous Cell Carcinoma in 90 Cases. Indian J Otolaryngol Head Neck Surg 2022; 74:5930-5935. [PMID: 36742798 PMCID: PMC9895216 DOI: 10.1007/s12070-021-02559-z] [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: 12/24/2020] [Accepted: 04/12/2021] [Indexed: 02/07/2023] Open
Abstract
Maxillary gingival squamous cell carcinoma (MGSCC) occurs rather infrequently, compared to tongue and mandibular gingival carcinomas, among the cancers of the oral cavity. Therefore, significant numbers of MGSCC cases have not been statistically analysed. The aim of this study is to clarify the prognostic factors for MGSCC. We performed the statistical analysis of 90 MGSCC cases primarily treated in our department from 1999 to 2014. The patients (male: 36, female: 54) were aged between 38 and 93 years, and the mean age was 68.7 years. The number of patients in each tumour stage according to the TNM classification was as follows: T1: 15 cases, T2: 32 cases, T3: 13 cases, and T4: 30 cases. Forty-two patients were treated only by surgery, 5 only by radiotherapy, 3 by preoperative radiotherapy and surgery, and 40 patients were treated by combination therapy with preoperative chemoradiotherapy and surgery. Neck dissections were performed in 40 cases including 29 cases (11 primary and 18 secondary cases) of histopathologically diagnosed lymph node metastases. Extranodal extension was found in 74.3% cases with metastatic lymph nodes. The 5-year overall survival rate was 81.9%. In univariate analysis, the site of occurrence, stage of tumour, lymph node metastasis, and treatment contributed to the 5-year survival rate. Multivariate analysis demonstrated that the site of occurrence (posterior region) was an independent prognostic factor. Seventeen deaths occurred due to the primary disease, while three deaths were caused by other diseases. The posterior region cancers, according to the classification based on site of occurrence, were independent predictors of poor 5-year overall survival rate.
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Affiliation(s)
- Yoshio Ohyama
- Department of Oral and Maxillofacial Surgery, Shizuoka City Shizuoka Hospital, 10-93, Outemachi, Aoi-ku, Shizuoka-shi, Shizuoka 420-8690 Japan
- Department of Maxillofacial Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45Bunkyo-ku, Yushima, Tokyo 113-8510 Japan
| | - Masashi Yamashiro
- Department of Dentistry and Oral Surgery, NTT Medical Center, 5-9-22 Higashigotannda, Shinagawa-ku, Tokyo 141-8625 Japan
| | - Yasuyuki Michi
- Department of Oral and Maxillofacial Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45Bunkyo-ku, Yushima, Tokyo 113-8510 Japan
| | - Narikazu Uzawa
- Department of Oral and Maxillofacial Surgery II, Osaka University, 1-8 Yamadaoka, Suita, Osaka 565-0871 Japan
| | - Kunihiro Myo
- Department of Head and Neck Surgery, Gunma Prefectural Cancer Center, 617-1 Takahayashinishi-cho, Oota-shi, Gunma 373-0828 Japan
| | - Itaru Sonoda
- Department of Dentistry and Oral Surgery, Moriyama Memorial, 4-3-1 Kitakasai, Edogawa-ku, Tokyo 134-0081 Japan
| | - Jun Sumino
- Department of Oral Surgery, Saitama Cancer Center, 780, Komuro, Inamachi, Kitaadachigun, Saitama 362-0806 Japan
| | - Chika Miura
- Department of Oral Surgery, Japanese Red Cross Aahikaga Hospital, 284-1 Yobe-cho, Ashikaga, Tochigi 326-0843 Japan
| | - Miho Mizutani
- Department of Dentistry and Oral Surgery, NTT Medical Center, 5-9-22 Higashigotannda, Shinagawa-ku, Tokyo 141-8625 Japan
| | - Daisuke Yamamoto
- Department of Maxillofacial Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45Bunkyo-ku, Yushima, Tokyo 113-8510 Japan
| | - Kou Kayamori
- Department of Oral Pathology, Tokyo Medical and Dental University, 1-5-45Bunkyo-ku, Yushima, Tokyo 113-8510 Japan
| | - Tetsuya Yoda
- Department of Maxillofacial Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45Bunkyo-ku, Yushima, Tokyo 113-8510 Japan
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Husein D, Alamoudi A, Ohyama Y, Mochida H, Ritter B, Mochida Y. Identification of the C-terminal region in Amelogenesis Imperfecta causative protein WDR72 required for Golgi localization. Sci Rep 2022; 12:4640. [PMID: 35301423 PMCID: PMC8930991 DOI: 10.1038/s41598-022-08719-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 02/28/2022] [Indexed: 11/22/2022] Open
Abstract
Amelogenesis Imperfecta (AI) represents a group of hereditary conditions that manifest tooth enamel defects. Several causative mutations in the WDR72 gene have been identified and patients with WDR72 mutations have brown (or orange-brown) discolored enamel, rough enamel surface, early loss of enamel after tooth eruption, and severe attrition. Although the molecular function of WDR72 is not yet fully understood, a recent study suggested that WDR72 could be a facilitator of endocytic vesicle trafficking, which appears inconsistent with the previously reported cytoplasmic localization of WDR72. Therefore, the aims of our study were to investigate the tissues and cell lines in which WDR72 was expressed and to further determine the sub-cellular localization of WDR72. The expression of Wdr72 gene was investigated in mouse tissues and cell lines. Endogenous WDR72 protein was detected in the membranous fraction of ameloblast cell lines in addition to the cytosolic fraction. Sub-cellular localization studies supported our fractionation data, showing WDR72 at the Golgi apparatus, and to a lesser extent, in the cytoplasmic area. In contrast, a WDR72 AI mutant form that lacks its C-terminal region was exclusively detected in the cytoplasm. In addition, our studies identified a putative prenylation/CAAX motif within the last four amino acids of human WDR72 and generated a WDR72 variant, called CS mutant, in which the putative motif was ablated by a point mutation. Interestingly, mutation of the putative CAAX motif impaired WDR72 recruitment to the Golgi. Cell fractionation assays confirmed subcellular distribution of wild-type WDR72 in both cytosolic and membranous fractions, while the WDR72 AI mutant and CS mutant forms were predominantly detected in the cytosolic fraction. Our studies provide new insights into the subcellular localization of WDR72 and demonstrate a critical role for the C-terminal CAAX motif in regulating WDR72 recruitment to the Golgi. In accordance with structural modelling studies that classified WDR72 as a potential vesicle transport protein, our findings suggest a role for WDR72 in vesicular Golgi transport that may be key to understanding the underlying cause of AI.
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Affiliation(s)
- Dina Husein
- Department of Molecular and Cell Biology, Henry M. Goldman School of Dental Medicine, Boston University, Boston, MA, USA
| | - Ahmed Alamoudi
- Department of Molecular and Cell Biology, Henry M. Goldman School of Dental Medicine, Boston University, Boston, MA, USA.,Oral Biology Department, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Yoshio Ohyama
- Department of Molecular and Cell Biology, Henry M. Goldman School of Dental Medicine, Boston University, Boston, MA, USA
| | - Hanna Mochida
- Department of Molecular and Cell Biology, Henry M. Goldman School of Dental Medicine, Boston University, Boston, MA, USA
| | - Brigitte Ritter
- Department of Biochemistry, School of Medicine, Boston University, Boston, MA, USA
| | - Yoshiyuki Mochida
- Department of Molecular and Cell Biology, Henry M. Goldman School of Dental Medicine, Boston University, Boston, MA, USA.
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Iwanaga J, Ibaragi S, Okui T, Divi V, Ohyama Y, Watanabe K, Kusukawa J, Tubbs RS. Cutaneous branch of the nerve to the mylohyoid muscle: potential cause of postoperative sensory alteration in the submental area. Ann Anat 2022; 243:151934. [PMID: 35307555 DOI: 10.1016/j.aanat.2022.151934] [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: 09/22/2021] [Revised: 03/08/2022] [Accepted: 03/09/2022] [Indexed: 10/18/2022]
Abstract
BACKGROUND Previous studies suggest that the nerve to the mylohyoid muscle could have a cutaneous branch. However, its clinical relevance has rarely been discussed because there is insufficient evidence for it. Our aim in this study was to investigate the anatomy of the cutaneous branch of the nerve to the mylohyoid muscle and extend the discussion to surgical management. METHODS Twenty sides from ten embalmed cadaveric heads were dissected to identify the cutaneous branch of the nerve to the mylohyoid muscle. The cutaneous branch was traced up to its termination. RESULTS The cutaneous branch was observed in 90% and classified into types I and II. In type I, the terminal trunk reached the anterior belly of the digastric muscle. In type II there were two types of terminal trunks, superior and inferior branches, which were identified on all sides. The number of the terminal trunk was one in 23.1% (type I; 6/26) and two in 76.9% (type II; 20/26).The terminal points of the cutaneous branch were all located within a 3cm×2cm rectangular segment in the center of the submental area. CONCLUSIONS We propose a new dermatome including the nerve to the mylohyoid muscle in the center. Understanding the cutaneous branch of the nerve could help surgeons to prevent iatrogenic sensory loss of the submental area.
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Affiliation(s)
- Joe Iwanaga
- Department of Neurosurgery, Tulane Center for Clinical Neurosciences, Tulane University School of Medicine, New Orleans, LA, USA; Department of Neurology, Tulane Center for Clinical Neurosciences, Tulane University School of Medicine, New Orleans, LA, USA; Dental and Oral Medical Center, Kurume University School of Medicine, Kurume, Fukuoka, Japan; Division of Gross and Clinical Anatomy, Department of Anatomy, Kurume University School of Medicine, Kurume, Fukuoka, Japan.
| | - Soichiro Ibaragi
- Department of Oral and Maxillofacial Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Tatsuo Okui
- Department of Oral and Maxillofacial Surgery, Shimane University Faculty of Medicine, Izumo, Shimane, Japan
| | - Vasu Divi
- Department of Otolaryngology-Head and Neck Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Yoshio Ohyama
- Department of Oral and Maxillofacial Surgery, Shizuoka City Shizuoka Hospital, Shizuoka, Japan; Department of Maxillofacial Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Koichi Watanabe
- Division of Gross and Clinical Anatomy, Department of Anatomy, Kurume University School of Medicine, Kurume, Fukuoka, Japan
| | - Jingo Kusukawa
- Dental and Oral Medical Center, Kurume University School of Medicine, Kurume, Fukuoka, Japan
| | - R Shane Tubbs
- Department of Neurosurgery, Tulane Center for Clinical Neurosciences, Tulane University School of Medicine, New Orleans, LA, USA; Department of Neurology, Tulane Center for Clinical Neurosciences, Tulane University School of Medicine, New Orleans, LA, USA; Department of Anatomical Sciences, St. George's University, St. George's, Grenada, West Indies; Department of Structural & Cellular Biology, Tulane University School of Medicine, New Orleans, LA, USA; Department of Neurosurgery and Ochsner Neuroscience Institute, Ochsner Health System, New Orleans, LA, USA; Department of Surgery, Tulane University School of Medicine, New Orleans, LA, USA; University of Queensland, Brisbane, Australia
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Govitvattana N, Kaku M, Ohyama Y, Jaha H, Lin IP, Mochida H, Pavasant P, Mochida Y. Molecular Cloning of Mouse Homologue of Enamel Protein C4orf26 and Its Phosphorylation by FAM20C. Calcif Tissue Int 2021; 109:445-454. [PMID: 33884476 PMCID: PMC8429244 DOI: 10.1007/s00223-021-00847-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 03/26/2021] [Indexed: 10/21/2022]
Abstract
It is widely accepted that cellular processes are controlled by protein phosphorylation and has become increasingly clear that protein degradation, localization and conformation as well as protein-protein interaction are the examples of subsequent cellular events modulated by protein phosphorylation. Enamel matrix proteins belong to members of the secretory calcium binding phosphoprotein (SCPP) family clustered on chromosome 4q21, and most of the SCPP phosphoproteins have at least one S-X-E motifs (S; serine, X; any amino acid, E; glutamic acid). It has been reported that mutations in C4orf26 gene, located on chromosome 4q21, are associated with autosomal recessive type of Amelogenesis Imperfecta (AI), a hereditary condition that affects enamel formation/mineralization. The enamel phenotype observed in patients with C4orf26 mutations is hypomineralized and partially hypoplastic, indicating that C4orf26 protein may function at both secretory and maturation stages of amelogenesis. The previous in vitro study showed that the synthetic phosphorylated peptide based on C4orf26 protein sequence accelerates hydroxyapatite nucleation. Here we show the molecular cloning of Gm1045, mouse homologue of C4orf26, which has 2 splicing isoforms. Immunohistochemical analysis demonstrated that the immunolocalization of Gm1045 is mainly observed in enamel matrix in vivo. Our report is the first to show that FAM20C, the Golgi casein kinase, phosphorylates C4orf26 and Gm1045 in cell cultures. The extracellular localization of C4orf26/Gm1045 was regulated by FAM20C kinase activity. Thus, our data point out the biological importance of enamel matrix-kinase control of SCPP phosphoproteins and may have a broad impact on the regulation of amelogenesis and AI.
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Affiliation(s)
- Nattanan Govitvattana
- Department of Molecular and Cell Biology, Henry M. Goldman School of Dental Medicine, Boston University, Boston, MA, 02118, USA
- Department of Pediatric Dentistry, Faculty of Dentistry, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Masaru Kaku
- Division of Bio-Prosthodontics, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, Niigata, 951-8514, Japan
| | - Yoshio Ohyama
- Department of Molecular and Cell Biology, Henry M. Goldman School of Dental Medicine, Boston University, Boston, MA, 02118, USA
| | - Haytham Jaha
- Department of Molecular and Cell Biology, Henry M. Goldman School of Dental Medicine, Boston University, Boston, MA, 02118, USA
| | - I-Ping Lin
- Department of Molecular and Cell Biology, Henry M. Goldman School of Dental Medicine, Boston University, Boston, MA, 02118, USA
- Graduate Institute of Clinical Dentistry, School of Dentistry, College of Medicine, National Taiwan University, Taipei, 10048, Taiwan
| | - Hanna Mochida
- Department of Molecular and Cell Biology, Henry M. Goldman School of Dental Medicine, Boston University, Boston, MA, 02118, USA
| | - Prasit Pavasant
- Center of Excellence in Regenerative Dentistry, Faculty of Dentistry, Chulalongkorn University, Bangkok, 10330, Thailand.
| | - Yoshiyuki Mochida
- Department of Molecular and Cell Biology, Henry M. Goldman School of Dental Medicine, Boston University, Boston, MA, 02118, USA.
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Katagiri T, Ohyama Y, Miyamoto H, Egawa Y, Moriki T, Hasegawa K. Pathological responses to low-dose irradiation and Pepleomycin in Oral squamous cell carcinoma are predictive of Locoregional control. BMC Cancer 2020; 20:1216. [PMID: 33302897 PMCID: PMC7731628 DOI: 10.1186/s12885-020-07707-2] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 12/01/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The prognosis of advanced oral cancer remains dismal. While multimodal therapy is beneficial, maintaining the quality of life of long-term survivors is important. Therefore, risk-adapted treatment regimens need to be designed. We herein investigated whether pathological responses in oral cancer patients treated with preoperative chemoradiotherapy predict locoregional recurrence. METHODS We retrospectively reviewed the data of 51 oral cancer patients who received preoperative radiotherapy and concurrent pepleomycin, followed by curative surgery at our institution between January 2009 and June 2018. Each patient received preoperative external beam irradiation to the primary tumor and lymphatics (2 Gy per day for approximately 3 weeks) concurrent with pepleomycin (2.5 mg/day). Surgery was performed approximately 3-4 weeks after the completion of preoperative chemoradiotherapy. Pathological responses were defined based on the grading system of Oboshi and Shimosato. RESULTS Eight, 22, 16, and 5 patients had Oboshi and Shimosato grades 2a, 2b, 3, and 4, respectively. Favorable pathological responses (grades 3 and 4) were observed in 41.2% of patients (21 out of 51 patients). The pathological response and number of pathological lymph node metastases were identified as significant prognostic factors for locoregional control in the univariate analysis. Three-year locoregional control rates were 100 and 56.6% in patients with favorable and unfavorable pathological responses, respectively. CONCLUSIONS The present study demonstrated that pathological tumor responses to preoperative chemoradiotherapy are a useful predictive factor for locoregional control.
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Affiliation(s)
- Tomohiro Katagiri
- Department of Radiation Oncology, Shizuoka City Shizuoka Hospital, 10-93, Ohtemachi, Shizuoka, Aoi-ku, 420-8630, Japan.
| | - Yoshio Ohyama
- Department of Oral and Maxillofacial Surgery, Shizuoka City Shizuoka Hospital, Shizuoka, Japan
| | - Hideo Miyamoto
- Department of Oral and Maxillofacial Surgery, Shizuoka City Shizuoka Hospital, Shizuoka, Japan
| | - Yuki Egawa
- Department of Diagnostic Pathology, Shizuoka City Shizuoka Hospital, Shizuoka, Japan
| | - Toshiaki Moriki
- Department of Diagnostic Pathology, Shizuoka City Shizuoka Hospital, Shizuoka, Japan
| | - Kazuki Hasegawa
- Department of Oral and Maxillofacial Surgery, Shizuoka City Shizuoka Hospital, Shizuoka, Japan
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Abstract
It is widely accepted that FAM20C functions as a Golgi casein kinase and has large numbers of kinase substrates within the secretory pathway. It has been previously reported that FAM20C is required for maintenance of healthy periodontal tissues. However, there has been no report that any extracellular matrix molecules expressed in periodontal tissues are indeed substrates of FAM20C. In this study, we sought to identify the binding partner(s) of FAM20C. FAM20C wild-type (WT) and its kinase inactive form D478A proteins were generated. These proteins were electrophoresed and the Coomassie Brilliant Blue (CBB)-positive bands were analyzed to identify FAM20C-binding protein(s) by Mass Spectrometry (MS) analysis. Periostin was found by the analysis and the binding between FAM20C and Periostin was investigated in cell cultures and in vitro. We further determined the binding region(s) within Periostin responsible for FAM20C-binding. Immunolocalization of FAM20C and Periostin was examined using mouse periodontium tissues by immunohistochemical analysis. In vitro kinase assay was performed using Periostin and FAM20C proteins to see whether FAM20C phosphorylates Periostin in vitro. We identified Periostin as one of FAM20C-binding proteins by MS analysis. Periostin interacted with FAM20C in a kinase-activity independent manner and the binding was direct in vitro. We further identified the binding domain of FAM20C in Periostin, which was mapped within Fasciclin (Fas) I domain 1-4 of Periostin. Immunolocalization of FAM20C was observed in periodontal ligament (PDL) extracellular matrix where that of Periostin was also immunostained in murine periodontal tissues. FAM20C WT, but not D478A, phosphorylated Periostin in vitro. Consistent with the overlapped expression pattern of FAM20C and Periostin, our data demonstrate for the first time that Periostin is a direct FAM20C-binding partner and that FAM20C phosphorylates Periostin in vitro.
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Affiliation(s)
- Ju-Hsien Lin
- Department of Molecular and Cell Biology, Henry M. Goldman School of Dental Medicine, Boston University, Boston, MA, USA
| | - I-Ping Lin
- Department of Molecular and Cell Biology, Henry M. Goldman School of Dental Medicine, Boston University, Boston, MA, USA
- Graduate Institute of Clinical Dentistry, School of Dentistry, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Yoshio Ohyama
- Department of Molecular and Cell Biology, Henry M. Goldman School of Dental Medicine, Boston University, Boston, MA, USA
| | - Hanna Mochida
- Department of Molecular and Cell Biology, Henry M. Goldman School of Dental Medicine, Boston University, Boston, MA, USA
| | - Akira Kudo
- Department of Biological Information, Graduate School of Bioscience and Biotechnology, Tokyo Institute of Technology, Yokohama, Japan
| | - Masaru Kaku
- Division of Bio-Prosthodontics, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Yoshiyuki Mochida
- Department of Molecular and Cell Biology, Henry M. Goldman School of Dental Medicine, Boston University, Boston, MA, USA.
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9
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Kusumoto Y, Imai K, Ohyama Y, Fukayama H, Shinozuka O. Oral management of a patient with down syndrome and agammaglobulinemia: a case report. BMC Oral Health 2020; 20:71. [PMID: 32169066 PMCID: PMC7069031 DOI: 10.1186/s12903-020-1056-2] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Accepted: 03/02/2020] [Indexed: 11/21/2022] Open
Abstract
Background Down syndrome is characterized by a variety of dysmorphic features and congenital malformations, such as congenital heart disease, gastrointestinal disease, and other conditions like leukemia and autoimmune disorders. Patients with Down syndrome are highly prone to respiratory tract infections, which might be fatal to them. However, there are only few available data on patients diagnosed with Down syndrome and agammaglobulinemia. In this report, we describe a case of successful prevention of post-dental treatment complications (e.g., pneumonia and other bacterial infections) in a patient with Down syndrome and agammaglobulinemia. Case presentation A 43-year-old man with Down syndrome, untreated agammaglobulinemia, and a history of recurrent pneumonia, was referred to our clinic for tooth mobility. To reduce the risk of post-operative infections, gammaglobulin treatment and prophylactic administration of antibiotics was scheduled before the dental procedure. Furthermore, the dental treatment, which included a filling and extractions, was conducted under general anesthesia and with the supervision of a hematologist. The dental procedures were successfully performed without any post-operative infection, and the patient is undergoing follow-up care. Conclusions The purpose of this case report was to recommend a close liaison between physicians and dentists who may encounter a similar case, and to emphasize the importance of improving oral health of immunodeficient patients to prevent infections caused by oral microbial flora.
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Affiliation(s)
- Yasuka Kusumoto
- Department of Dentistry for Persons with Disabilities, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo, Japan.
| | - Kohsuke Imai
- Department of Community Pediatrics, Perinatal and Maternal Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yoshio Ohyama
- Department of Oral and Maxillofacial Surgery, Shizuoka City Shizuoka Hospital, Shizuoka, Japan
| | - Haruhisa Fukayama
- Department of Anesthesiology and Clinical Physiology, Graduate School of Tokyo Medical and Dental University, Tokyo, Japan
| | - Osamu Shinozuka
- Department of Dentistry for Persons with Disabilities, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo, Japan
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10
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Oguri M, Ohyama Y, Nakamura T, Tomono S, Kurabayashi M. Comparative effects of enarapril versus losartan on the prevention of diabetic nephropathy in type 2 diabetes patients with microalbuminuria. Dubai Diabetes Endocrinol J 2019. [DOI: 10.1159/000497664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
A prospective randomized open-labeled study was performed to compare the renoprotective effects of enarapril and losartan on the development of microalbuminuria in type 2 diabetic patients with hypertension. Diabetic patients who have hypertension and microalbuminuria at base line (n=19) were recruited. Enarapril (n=11) or losartan (n=8) was randomly chosen by envelope methods and was prescribed for one year. At the end of this study, the blood pressure of patients in these two groups decreased significantly. Urine albumin-creatinine ratio (U-ACR) also decreased in these two groups, however, U-ACR of enarapril group was not significantly different from that of losartan group at any time of this study. Body mass index, HbA1c, blood pressure, and serum lipid profiles were not significantly different between the two groups. From these results, we conclude that the effects of enarapril and losartan on the development of microalbuminuria in type 2 diabetic patients along with hypertension seem to be equivalent in terms of clinical renoprotection.
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11
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Almehmadi A, Ohyama Y, Kaku M, Alamoudi A, Husein D, Katafuchi M, Mishina Y, Mochida Y. VWC2 Increases Bone Formation Through Inhibiting Activin Signaling. Calcif Tissue Int 2018; 103:663-674. [PMID: 30074079 PMCID: PMC6549224 DOI: 10.1007/s00223-018-0462-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Accepted: 07/30/2018] [Indexed: 12/27/2022]
Abstract
By a bioinformatics approach, we have identified a novel cysteine knot protein member, VWC2 (von Willebrand factor C domain containing 2) previously known as Brorin. Since Brorin has been proposed to function as a bone morphogenetic protein (BMP) antagonist, we investigated the binding of Brorin/VWC2 to several BMPs; however, none of the BMPs tested were bound to VWC2. Instead, the βA subunit of activin was found as a binding partner among transforming growth factor (TGF)-β superfamily members. Here, we show that Vwc2 gene expression is temporally upregulated early in osteoblast differentiation, VWC2 protein is present in bone matrix, and localized at osteoblasts/osteocytes. Activin A-induced Smad2 phosphorylation was inhibited in the presence of exogenous VWC2 in MC3T3-E1 osteoblast cell line and primary osteoblasts. The effect of VWC2 on ex vivo cranial bone organ cultures treated with activin A was investigated, and bone morphometric parameters decreased by activin A were restored with VWC2. When we further investigated the biological mechanism how VWC2 inhibited the effects of activin A on bone formation, we found that the effects of activin A on osteoblast cell growth, differentiation, and mineralization were reversed by VWC2. Taken together, a novel secretory protein, VWC2 promotes bone formation by inhibiting Activin-Smad2 signaling pathway.
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Affiliation(s)
- Ahmad Almehmadi
- Department of Molecular and Cell Biology, Boston University, Henry M. Goldman School of Dental Medicine, Boston, MA, USA
- Department of Periodontology and Oral Biology, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Yoshio Ohyama
- Department of Molecular and Cell Biology, Boston University, Henry M. Goldman School of Dental Medicine, Boston, MA, USA
- Departoment of Maxillofacial Surgery, Tokyo Medical and Dental University Graduate School, Tokyo, Japan
| | - Masaru Kaku
- Division of Bio-Prosthodontics, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Ahmed Alamoudi
- Department of Molecular and Cell Biology, Boston University, Henry M. Goldman School of Dental Medicine, Boston, MA, USA
- Department of Oral Biology, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Dina Husein
- Department of Molecular and Cell Biology, Boston University, Henry M. Goldman School of Dental Medicine, Boston, MA, USA
| | - Michitsuna Katafuchi
- Department of Oral Rehabilitation, Section of Fixed Prosthodontics, Fukuoka Dental College, Fukuoka, Japan
| | - Yuji Mishina
- Department of Biologic and Materials Sciences, School of Dentistry, University of Michigan, Ann Arbor, MI, USA
| | - Yoshiyuki Mochida
- Department of Molecular and Cell Biology, Boston University, Henry M. Goldman School of Dental Medicine, Boston, MA, USA.
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12
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Michikawa C, Izumo T, Sumino J, Morita T, Ohyama Y, Michi Y, Uzawa N. Small size of metastatic lymph nodes with extracapsular spread greatly impacts treatment outcomes in oral squamous cell carcinoma patients. Int J Oral Maxillofac Surg 2018; 47:830-835. [PMID: 29373201 DOI: 10.1016/j.ijom.2017.12.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Revised: 11/08/2017] [Accepted: 12/19/2017] [Indexed: 10/18/2022]
Abstract
Extracapsular spread (ECS) of metastatic lymph nodes from oral carcinoma is the most significant prognostic predictor of a poor treatment outcome. However, only a few reports on prognostic factors in ECS-positive cases have been investigated. To address this problem, a detailed examination of ECS pathology was conducted to determine the prognostic factors of oral squamous cell carcinoma (OSCC) with ECS of metastatic lymph nodes. This study involved 63 OSCC patients with at least one pathologically metastatic node with ECS. Among the 229 metastatic lymph nodes, 149 exhibited ECS. Univariate analysis revealed that a poor outcome and recurrence were significantly associated with the number of ECS-positive nodes, density of ECS, and the minor axis of the smallest ECS-positive node. However, multivariate analysis identified only small size of ECS-positive nodes as a significant and independent factor predicting recurrence and a poor outcome. Thus, small size of ECS-positive nodes is the most important prognostic indicator for OSCC with ECS in metastatic lymph nodes. The classification of ECS status using the minor axis of ECS-positive nodes may be useful for further prediction of a poorer prognosis in OSCC cases. Standardization of ECS diagnosis and multicenter prospective studies will be required to confirm and refine these findings.
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Affiliation(s)
- C Michikawa
- Maxillofacial Surgery, Maxillofacial Reconstruction and Function, Division of Maxillofacial and Neck Reconstruction, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan; Department of Head and Neck Surgery, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - T Izumo
- Division of Oral Diagnosis, Dental and Maxillofacial Radiology and Oral Pathology Diagnostic Service, The Nippon Dental University Hospital, Tokyo, Japan
| | - J Sumino
- Maxillofacial Surgery, Maxillofacial Reconstruction and Function, Division of Maxillofacial and Neck Reconstruction, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - T Morita
- Maxillofacial Surgery, Maxillofacial Reconstruction and Function, Division of Maxillofacial and Neck Reconstruction, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan; Head and Neck Oncology Department, The Cancer Institute Hospital of JFCR, Tokyo, Japan
| | - Y Ohyama
- Maxillofacial Surgery, Maxillofacial Reconstruction and Function, Division of Maxillofacial and Neck Reconstruction, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan; Oral and Maxillofacial Surgery, Shizuoka City Shizuoka Hospital, Shizuoka, Japan
| | - Y Michi
- Maxillofacial Surgery, Maxillofacial Reconstruction and Function, Division of Maxillofacial and Neck Reconstruction, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - N Uzawa
- Department of Oral and Maxillofacial Surgery II, Graduate School of Dentistry, Osaka University Osaka, Japan.
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13
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Kim Y, Okuyama K, Michi Y, Ohyama Y, Uzawa N, Yamaguchi S. Potential factors influencing the development of oral tongue squamous cell carcinoma in young mature patients: Lingual position of the mandibular second molar and narrow tongue space. Oncol Lett 2017; 14:7339-7343. [PMID: 29344172 PMCID: PMC5755207 DOI: 10.3892/ol.2017.7135] [Citation(s) in RCA: 4] [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: 02/15/2017] [Accepted: 08/23/2017] [Indexed: 11/22/2022] Open
Abstract
The lingual position of the mandibular second molar and narrow tongue space are associated with oral tongue squamous cell carcinoma (OTSCC) development in young mature patients. The present study aimed to assess the role of the mandibular second molar position and tongue space in young mature patients with OTSCC. The medical records of 21 patients with OTSCC aged <50 years, who had an intact mandibular second molar and had undergone computed tomography (CT) imaging between April 2009 and December 2015 at the Section of Maxillofacial Surgery in Tokyo Medical and Dental University, were retrospectively examined. As controls, 21 sex-matched patients of a similar age to the patients in the OTSCC group, and with a height and weight within 5% of those of the OTSCC group, were collected. The location of the mandibular second molar on the affected side and area of the tongue space were determined using coronal and axial CT images. Mann-Whitney U test analysis revealed that the location of the mandibular second molar and the area of the tongue space differed significantly between young mature patients with OTSCC and the controls. The present study thus revealed that the lingual position of the mandibular second molar and the narrow tongue space may be potential factors influencing OTSCC development in young maturity.
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Affiliation(s)
- Yusoon Kim
- Section of Maxillofacial Surgery, Department of Maxillofacial and Neck Reconstruction, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8549, Japan
| | - Kohei Okuyama
- Department of Clinical Oral Oncology, Unit of Translational Medicine, Course of Medical and Dental Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8588, Japan
| | - Yasuyuki Michi
- Section of Maxillofacial Surgery, Department of Maxillofacial and Neck Reconstruction, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8549, Japan
| | - Yoshio Ohyama
- Section of Maxillofacial Surgery, Department of Maxillofacial and Neck Reconstruction, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8549, Japan
| | - Narikazu Uzawa
- Section of Maxillofacial Surgery, Department of Maxillofacial and Neck Reconstruction, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8549, Japan
| | - Satoshi Yamaguchi
- Section of Maxillofacial Surgery, Department of Maxillofacial and Neck Reconstruction, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8549, Japan
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14
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Ohyama Y, Uzawa N, Yamashiro M, Yamaguchi S. Congenital lipoma of the hard palate: case report. Br J Oral Maxillofac Surg 2017; 55:626-627. [PMID: 28372880 DOI: 10.1016/j.bjoms.2017.03.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Accepted: 03/13/2017] [Indexed: 11/29/2022]
Affiliation(s)
- Y Ohyama
- Maxillofacial Surgery, Graduate School, Tokyo Medical and Dental University, 1-5-45 Yushima Bunkyoku, Tokyo 113-8510, Japan.
| | - N Uzawa
- Maxillofacial Surgery, Graduate School, Tokyo Medical and Dental University, 1-5-45 Yushima Bunkyoku, Tokyo 113-8510, Japan
| | - M Yamashiro
- Dentistry and Oral Surgery, NTT Medical Center Tokyo, 5-9-22 Higashi-Gotanda, Shinagawa-ku, Tokyo 141-8625, Japan
| | - S Yamaguchi
- Maxillofacial Surgery, Graduate School, Tokyo Medical and Dental University, 1-5-45 Yushima Bunkyoku, Tokyo 113-8510, Japan
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15
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Asai Y, Ohyama Y, Taiji Y, Makimura Y, Tamai R, Hashimoto M, Ogawa T. Treponema medium Glycoconjugate Inhibits Activation of Human Gingival Fibroblasts Stimulated with Phenol-Water Extracts of Periodontopathic Bacteria. J Dent Res 2016; 84:456-61. [PMID: 15840783 DOI: 10.1177/154405910508400511] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Oral treponemes are well-known as causative agents of periodontal diseases; however, the details have not been fully clarified. Here, we examined the effects of Treponema medium glycoconjugate on the activation of human gingival fibroblasts using phenol-water extracts from Porphyromonas gingivalis, Prevotella intermedia, Fusobacterium nucleatum subsp. nucleatum, and Actinobacillus actinomycetemcomitans. The phenol-water extracts activated human gingival fibroblasts to mediate IL-8 production, as well as IL-8 mRNA expression, phosphorylation of p38 mitogen-activated protein kinase, and expression of intercellular adhesion molecule-1. T. medium glycoconjugate exhibited no activation of human gingival fibroblasts, while phenol-water extract-induced activation of human gingival fibroblasts was clearly inhibited by T. medium glycoconjugate. Furthermore, binding of biotinylated phenol-water extracts to CD14 in the presence of LPS-binding protein was blocked with T. medium glycoconjugate. These results suggest that T. medium glycoconjugate has an inhibitory effect on host cell activation by periodontopathic bacteria caused by binding to CD14- and LPS-binding protein.
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Affiliation(s)
- Y Asai
- Department of Oral Microbiology, Asahi University School of Dentistry, 1851-1 Hozumi, Mizuho, Gifu 501-0296, Japan
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16
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Ohyama Y, Ito J, Hakeda Y, Shimada J. Sudachitin, a Polymethoxyflavone Derived From Citrus Sudachi, Suppresses Lipopolysaccharide-Induced Inflammatory Bone Resorption Because of Inhibiting Osteoclast Formation in Mice. J Oral Maxillofac Surg 2016. [DOI: 10.1016/j.joms.2016.06.128] [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: 10/21/2022]
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17
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Jaha H, Husein D, Ohyama Y, Xu D, Suzuki S, Huang GTJ, Mochida Y. N-terminal Dentin Sialoprotein fragment induces type I collagen production and upregulates dentinogenesis marker expression in osteoblasts. Biochem Biophys Rep 2016; 6:190-196. [PMID: 27158678 PMCID: PMC4857711 DOI: 10.1016/j.bbrep.2016.04.004] [Citation(s) in RCA: 7] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
Abstract
Bone and dentin are mineralized extracellular matrices produced by osteoblasts and odontoblasts, respectively, and their major organic portion is type I collagen. Dentinogenesis Imperfecta (DGI) is one of the most common clinically- and genetically-based disturbances of dentin formation, causing irreversible dentin defects. Among several types of DGI, patients with DGI type II exhibit opalescent dentin with partial or complete pulp obliteration. It has been previously reported that the non-sense mutation (c.133C>T) in Dentin Sialophosphoprotein (DSPP) was identified in DGI type II patients at glutamine residue 45, resulting in the premature stop codon (p.Q45X). DSPP is known to be synthesized as a single gene product and further processed at Gly462-Asp463, resulting in the production of Dentin Sialoprotein (DSP) and Dentin Phosphoprotein (DPP). We hypothesized that the shorter form (Q45X) of N-terminal Dentin Sialoprotein (N-DSP) may cause over-production of type I collagen protein as obliterated pulp is occupied by dentin. To test this hypothesis, we generated mouse recombinant Glutathione-S-Transferase (GST)-N-DSP fusion protein, and the effect of GST-N-DSP was investigated in calvarial bone explant culture and MC3T3-E1 osteoblastic culture systems. Here we show that a significant increase in calvarial bone formation is observed by GST-N-DSP. GST-N-DSP accelerates MC3T3-E1 osteoblast cell growth and proliferation and subsequent osteoblast differentiation by inducing the expression of certain osteogenic markers such as type I collagen, Runx2, Osterix and ATF4. Interestingly, GST-N-DSP significantly enhances dentinogenesis marker gene expression including Dspp and Dmp1 gene expression in non-odontogenic MC3T3-E1 cells. To rule out any artificial effect of GST-tag, we also used the synthetic peptide of N-DSP and confirmed the results of N-DSP peptide were essentially similar to those of GST-N-DSP. Taken together, our data suggest that N-DSP promotes bone formation by accelerating osteoblast cell proliferation and subsequent osteoblast differentiation accompanied by marked up-regulation of the dentin matrix markers, such as Dspp and Dmp1 genes. Recombinant N-terminal DSP (N-DSP) protein was generated. N-DSP mimics the non-sense mutation form of Dentinogenesis Imperfecta type II. N-DSP enhances bone formation in clavarial ex vivo cultures. N-DSP accelerates osteoblast proliferation. N-DSP upregulates type I collagen and Dspp expression in non-odontogenic osteoblasts.
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Affiliation(s)
- Haytham Jaha
- Department of Molecular and Cell Biology, Boston University, Henry M. Goldman School of Dental Medicine, Boston, MA 02118, USA
| | - Dina Husein
- Department of Molecular and Cell Biology, Boston University, Henry M. Goldman School of Dental Medicine, Boston, MA 02118, USA
| | - Yoshio Ohyama
- Department of Molecular and Cell Biology, Boston University, Henry M. Goldman School of Dental Medicine, Boston, MA 02118, USA
| | - Dongliang Xu
- Department of Molecular and Cell Biology, Boston University, Henry M. Goldman School of Dental Medicine, Boston, MA 02118, USA; Henan Province People 's Hospital, 7 Weiwu Rd, Zhengzhou, 450003, China
| | - Shigeki Suzuki
- Department of Biological Endodontics, Integrated Health Sciences, Institute of Biomedical and Health Sciences, Hiroshima University, Hiroshima, 734-8553, Japan
| | - George T-J Huang
- Department of Bioscience Research, College of Dentistry, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Yoshiyuki Mochida
- Department of Molecular and Cell Biology, Boston University, Henry M. Goldman School of Dental Medicine, Boston, MA 02118, USA
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Mizutani M, Michi Y, Katsuki Y, Ohyama Y, Uzawa N, Myo K, Kawamata A, Sumino J, Miura C, Morita T, Yamashiro M, Amagasa T, Yamaguchi S. Clinical Study of 597 Oral Squamous Cell Carcinomas in Our Department - Especially about 318 Tongue Carcinoma. Kokubyo Gakkai Zasshi 2016; 83:80-86. [PMID: 30452833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
This clinico-statistical study includes 597 cases of oral squamous cell carcinoma treated at the Maxillofacial Surgery Section of Tokyo Medical and Dental University between January 2002 and December 2011. There were 373 male and 224 female patients (male to female ratio, 1.7 : 1), and the median age was 67 years. The tongue (53.3%) was the most commonly affected site. The 5-year disease-specific survival rate was 84.8%. Survival rates by clinical stage were as follows : Stage 1, 92.1% (n=195).; Stage , 86.0% (n = 221) ; Stage III, 77.7% (n=65) ; and Stage IV, 73.8% (n =116). Survival rates by primary site were as follows: tongue, 85.4% (n=318) ; lower gingiva, 82.8% (n =114) upper gingiva, 83.7% (n=59) ; buccal mucosa, 89.1% (n 54) ; oral floor, 81.4% (n=49) ; and hard palate, 100% (n=3). According to clinical growth patterns of Stage I / I tongue cancer cases, the 5-year disease-specific survival rate was significantly higher for patients with the exophytic/superficial type (97.3%, n =173) than for those with the endophytic type (77.5%, n=145). Among Stage I/II tongue cancer cases, the corresponding survival rate was significantly higher for patients who had not previously undergone invasive treatments (n=201), such as tooth extraction, compared to those who had previously done so (n=54) (92.7% and 79.7%, respectively). In addition, the incidence of secondary cervical lymph node metastasis was significantly higher in patients who had previously undergone invasive treatments.
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19
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Aoki M, Hagiwara S, Murata M, Kaneko M, Kanbe M, Nakajima J, Sawada Y, Ohyama Y, Tamura J, Oshima K. Post-traumatic hypopituitarism: report of a child case. Acute Med Surg 2016; 4:93-96. [PMID: 29123841 PMCID: PMC5667293 DOI: 10.1002/ams2.220] [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: 09/23/2015] [Accepted: 04/07/2016] [Indexed: 11/08/2022] Open
Abstract
Case We report a case of post‐traumatic hypopituitarism in a 9‐year‐old boy who was injured in a car accident. Outcome Post‐traumatic hypopituitarism might be caused by moderate to severe head trauma, and while this possibility has recently drawn attention in adults, few reports are available regarding children. Our patient experienced head and facial injury, resulting in post‐traumatic hypopituitarism. Six hours after injury he suffered from diabetes insipidus and hormone replacement therapy was started. On day 12 he underwent facial fracture reduction under general anesthesia. On day 24 he was discharged from the hospital. One year after the injury, secretory function and water dehydration tests suggested the possibility of post‐traumatic hypopituitarism. Conclusion We experienced a child case of post‐traumatic hypopituitarism. Emergency physicians should pay attention to the possibility of post‐traumatic hypopituitarism in cases of traumatic brain injury.
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Affiliation(s)
- Makoto Aoki
- Department of Emergency Medicine Gunma University Graduate School of Medicine Maebashi Gunma Japan
| | - Shuichi Hagiwara
- Department of Emergency Medicine Gunma University Graduate School of Medicine Maebashi Gunma Japan
| | - Masato Murata
- Department of Emergency Medicine Gunma University Graduate School of Medicine Maebashi Gunma Japan
| | - Minoru Kaneko
- Department of Emergency Medicine Gunma University Graduate School of Medicine Maebashi Gunma Japan
| | - Masahiko Kanbe
- Department of Emergency Medicine Gunma University Graduate School of Medicine Maebashi Gunma Japan
| | - Jun Nakajima
- Department of Emergency Medicine Gunma University Graduate School of Medicine Maebashi Gunma Japan
| | - Yusuke Sawada
- Department of Emergency Medicine Gunma University Graduate School of Medicine Maebashi Gunma Japan
| | - Yoshio Ohyama
- Department of Emergency Medicine Gunma University Graduate School of Medicine Maebashi Gunma Japan
| | - Jun'ichi Tamura
- Department of General Medicine Gunma University Graduate School of Medicine Maebashi Gunma Japan
| | - Kiyohiro Oshima
- Department of Emergency Medicine Gunma University Graduate School of Medicine Maebashi Gunma Japan.,Emergency and General Medical Center Gunma University Hospital Maebashi Gunma Japan
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Badri MK, Zhang H, Ohyama Y, Venkitapathi S, Alamoudi A, Kamiya N, Takeda H, Ray M, Scott G, Tsuji T, Kunieda T, Mishina Y, Mochida Y. Expression of Evc2 in craniofacial tissues and craniofacial bone defects in Evc2 knockout mouse. Arch Oral Biol 2016; 68:142-52. [PMID: 27164562 DOI: 10.1016/j.archoralbio.2016.05.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [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: 01/09/2015] [Revised: 04/30/2016] [Accepted: 05/02/2016] [Indexed: 11/15/2022]
Abstract
OBJECTIVE Our objectives were to determine the expression of EVC2 in craniofacial tissues and investigate the effect of Evc2 deficiency on craniofacial bones using Evc2 knockout (KO) mouse model. DESIGN Evc2 KO mice were generated by introducing a premature stop codon followed by the Internal Ribosomal Entry Site fused to β-galactosidase (LacZ). Samples from wild-type (WT), heterozygous (Het) and homozygous Evc2 KO mice were prepared. LacZ staining and immunohistochemistry (IHC) with anti-β-galactosidase, anti-EVC2 and anti-SOX9 antibodies were performed. The craniofacial bones were stained with alcian blue and alizarin red. RESULTS The LacZ activity in KO was mainly observed in the anterior parts of viscerocranium. The Evc2-expressing cells were identified in many cartilageous regions by IHC with anti-β-galactosidase antibody in KO and Het embryos. The endogenous EVC2 protein was observed in these areas in WT embryos. Double labeling with anti-SOX9 antibody showed that these cells were mainly chondrocytes. At adult stages, the expression of EVC2 was found in chondrocytes of nasal bones and spheno-occipital synchondrosis, and osteocytes and endothelial-like cells of the premaxilla and mandible. The skeletal double staining demonstrated that craniofacial bones, where the expression of EVC2 was observed, in KO had the morphological defects as compared to WT. CONCLUSION To our knowledge, our study was the first to identify the types of Evc2-expressing cells in craniofacial tissues. Consistent with the expression pattern, abnormal craniofacial bone morphology was found in the Evc2 KO mice, suggesting that EVC2 may be important during craniofacial growth and development.
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Affiliation(s)
- Mohammed K Badri
- Department of Molecular and Cell Biology, Henry M. Goldman School of Dental Medicine, Boston University, 700 Albany Street, Boston, MA 02118, USA; Department of Pediatric Dentistry and Orthodontics, College of Dentistry, Taibah University, Al-Madinah Al-Munawarah, Saudi Arabia
| | - Honghao Zhang
- Department of Biologic and Materials Sciences, School of Dentistry, University of Michigan, 1011 N. University Ave., Ann Arbor, MI 48109-1078, USA
| | - Yoshio Ohyama
- Department of Molecular and Cell Biology, Henry M. Goldman School of Dental Medicine, Boston University, 700 Albany Street, Boston, MA 02118, USA
| | - Sundharamani Venkitapathi
- Department of Molecular and Cell Biology, Henry M. Goldman School of Dental Medicine, Boston University, 700 Albany Street, Boston, MA 02118, USA
| | - Ahmed Alamoudi
- Department of Molecular and Cell Biology, Henry M. Goldman School of Dental Medicine, Boston University, 700 Albany Street, Boston, MA 02118, USA
| | - Nobuhiro Kamiya
- Department of Biologic and Materials Sciences, School of Dentistry, University of Michigan, 1011 N. University Ave., Ann Arbor, MI 48109-1078, USA; Laboratory of Reproductive and Developmental Toxicology, National Institute of Environmental Health Sciences, 111 TW Alexander Drive, Research Triangle Park, NC 27009, USA
| | - Haruko Takeda
- Unit of Animal Genomics, GIGA-R & Faculty of Veterinary Medicine, University of Liège, 1 Avenue de l'Hôpital, 4000-Liège, Belgium
| | - Manas Ray
- Knock Out Core, National Institute of Environmental Health Sciences, 111 TW Alexander Drive, Research Triangle Park, NC 27009, USA
| | - Greg Scott
- Knock Out Core, National Institute of Environmental Health Sciences, 111 TW Alexander Drive, Research Triangle Park, NC 27009, USA
| | - Takehito Tsuji
- Graduate School of Environmental and Life Science, Okayama University, Okayama City, Japan
| | - Tetsuo Kunieda
- Graduate School of Environmental and Life Science, Okayama University, Okayama City, Japan
| | - Yuji Mishina
- Department of Biologic and Materials Sciences, School of Dentistry, University of Michigan, 1011 N. University Ave., Ann Arbor, MI 48109-1078, USA; Laboratory of Reproductive and Developmental Toxicology, National Institute of Environmental Health Sciences, 111 TW Alexander Drive, Research Triangle Park, NC 27009, USA; Knock Out Core, National Institute of Environmental Health Sciences, 111 TW Alexander Drive, Research Triangle Park, NC 27009, USA
| | - Yoshiyuki Mochida
- Department of Molecular and Cell Biology, Henry M. Goldman School of Dental Medicine, Boston University, 700 Albany Street, Boston, MA 02118, USA.
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Badri MK, Zhang H, Ohyama Y, Venkitapathi S, Kamiya N, Takeda H, Ray M, Scott G, Tsuji T, Kunieda T, Mishina Y, Mochida Y. Ellis Van Creveld2 is Required for Postnatal Craniofacial Bone Development. Anat Rec (Hoboken) 2016; 299:1110-20. [PMID: 27090777 DOI: 10.1002/ar.23353] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Revised: 02/23/2016] [Accepted: 03/02/2016] [Indexed: 11/07/2022]
Abstract
Ellis-van Creveld (EvC) syndrome is a genetic disorder with mutations in either EVC or EVC2 gene. Previous case studies reported that EvC patients underwent orthodontic treatment, suggesting the presence of craniofacial bone phenotypes. To investigate whether a mutation in EVC2 gene causes a craniofacial bone phenotype, Evc2 knockout (KO) mice were generated and cephalometric analysis was performed. The heads of wild type (WT), heterozygous (Het) and homozygous Evc2 KO mice (1-, 3-, and 6-week-old) were prepared and cephalometric analysis based on the selected reference points on lateral X-ray radiographs was performed. The linear and angular bone measurements were then calculated, compared between WT, Het and KO and statistically analyzed at each time point. Our data showed that length of craniofacial bones in KO was significantly lowered by ∼20% to that of WT and Het, the growth of certain bones, including nasal bone, palatal length, and premaxilla was more affected in KO, and the reduction in these bone length was more significantly enhanced at later postnatal time points (3 and 6 weeks) than early time point (1 week). Furthermore, bone-to-bone relationship to cranial base and cranial vault in KO was remarkably changed, i.e. cranial vault and nasal bone were depressed and premaxilla and mandible were developed in a more ventral direction. Our study was the first to show the cause-effect relationship between Evc2 deficiency and craniofacial defects in EvC syndrome, demonstrating that Evc2 is required for craniofacial bone development and its deficiency leads to specific facial bone growth defect. Anat Rec, 299:1110-1120, 2016. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Mohammed K Badri
- Department of Molecular and Cell Biology, Henry M. Goldman School of Dental Medicine, Boston University, Boston, Massachusetts
- Department of Pediatric Dentistry and Orthodontics, College of Dentistry, Taibah University, Al-Madinah Al-Munawarah, Saudi Arabia
| | - Honghao Zhang
- Department of Biologic and Materials Sciences, School of Dentistry, University of Michigan, Ann Arbor, Michigan
| | - Yoshio Ohyama
- Department of Molecular and Cell Biology, Henry M. Goldman School of Dental Medicine, Boston University, Boston, Massachusetts
| | - Sundharamani Venkitapathi
- Department of Molecular and Cell Biology, Henry M. Goldman School of Dental Medicine, Boston University, Boston, Massachusetts
| | - Nobuhiro Kamiya
- Department of Biologic and Materials Sciences, School of Dentistry, University of Michigan, Ann Arbor, Michigan
- National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina
| | - Haruko Takeda
- Unit of Animal Genomics, GIGA-R and Faculty of Veterinary Medicine, University of Liège, Liège, 4000, Belgium
| | - Manas Ray
- National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina
| | - Greg Scott
- National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina
| | - Takehito Tsuji
- Graduate School of Environmental and Life Science, Okayama University, Okayama City, Japan
| | - Tetsuo Kunieda
- Graduate School of Environmental and Life Science, Okayama University, Okayama City, Japan
| | - Yuji Mishina
- Department of Biologic and Materials Sciences, School of Dentistry, University of Michigan, Ann Arbor, Michigan
- National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina
| | - Yoshiyuki Mochida
- Department of Molecular and Cell Biology, Henry M. Goldman School of Dental Medicine, Boston University, Boston, Massachusetts
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22
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Aoki M, Hagiwara S, Miyazaki M, Kaneko M, Murata M, Nakajima J, Ohyama Y, Tamura J, Tsushima Y, Oshima K. Genuine splenic artery aneurysm rupture treated by N-butyl cyanoacrylate and metallic coils under resuscitative endovascular balloon occlusion of the aorta. Acute Med Surg 2016; 3:286-289. [PMID: 29123801 DOI: 10.1002/ams2.168] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Accepted: 08/14/2015] [Indexed: 11/09/2022] Open
Abstract
Case A 66 year-old woman who presented with sudden lower abdominal pain was transferred to our emergency room. Vital signs were stable on arrival at the hospital, but immediately became unstable. Systolic/diastolic blood pressure and heart rate were 66/33 mmHg and 70 b.p.m., respectively. Computed tomography scanning showed splenic artery aneurysm rupture and extravasation. The patient was treated non-operatively and definitively by endovascular therapy comprising resuscitative endovascular occlusion of the aorta for hemodynamic control, N-butyl cyanoacrylate, and metallic coils as an embolization material. Outcome On admission day 3, she was enrolled in another department and admission day 54, she was discharged. Conclusion Although resuscitative endovascular occlusion of the aorta and N-butyl cyanoacrylate is known to be effective, the use of resuscitative endovascular occlusion of the aorta with transcatheter arterial embolization and N-butyl cyanoacrylate for non-traumatic bleeding has not previously been reported. By combining and adapting these devices, their applications in endovascular management may be increased.
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Affiliation(s)
- Makoto Aoki
- Department of Emergency Medicine Gunma University Graduate School of Medicine Maebashi Gunma Japan.,Emergency and General Medical Center Gunma University Hospital Maebashi Gunma Japan
| | - Shuichi Hagiwara
- Department of Emergency Medicine Gunma University Graduate School of Medicine Maebashi Gunma Japan.,Emergency and General Medical Center Gunma University Hospital Maebashi Gunma Japan
| | - Masaya Miyazaki
- Department of Diagnostic and Interventional Radiology Gunma University Graduate School of Medicine Maebashi Gunma Japan
| | - Minoru Kaneko
- Department of Emergency Medicine Gunma University Graduate School of Medicine Maebashi Gunma Japan.,Emergency and General Medical Center Gunma University Hospital Maebashi Gunma Japan
| | - Masato Murata
- Department of Emergency Medicine Gunma University Graduate School of Medicine Maebashi Gunma Japan.,Emergency and General Medical Center Gunma University Hospital Maebashi Gunma Japan
| | - Jun Nakajima
- Department of Emergency Medicine Gunma University Graduate School of Medicine Maebashi Gunma Japan.,Emergency and General Medical Center Gunma University Hospital Maebashi Gunma Japan
| | - Yoshio Ohyama
- Emergency and General Medical Center Gunma University Hospital Maebashi Gunma Japan.,Department of General Medicine Gunma University Graduate School of Medicine Maebashi Gunma Japan
| | - Jun'ichi Tamura
- Emergency and General Medical Center Gunma University Hospital Maebashi Gunma Japan.,Department of General Medicine Gunma University Graduate School of Medicine Maebashi Gunma Japan
| | - Yoshito Tsushima
- Department of Diagnostic and Interventional Radiology Gunma University Graduate School of Medicine Maebashi Gunma Japan
| | - Kiyohiro Oshima
- Department of Emergency Medicine Gunma University Graduate School of Medicine Maebashi Gunma Japan.,Emergency and General Medical Center Gunma University Hospital Maebashi Gunma Japan
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23
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Hagiwara S, Kaneko M, Murata M, Aoki M, Nakajima J, Kanbe M, Ohyama Y, Tamura J, Oshima K. Study on the effectiveness of cardiopulmonary resuscitation in patients aged 80 years old and older with cardiopulmonary arrest on arrival. Resuscitation 2015. [DOI: 10.1016/j.resuscitation.2015.09.278] [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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24
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Naito T, Torikai K, Mizooka M, Mitsumoto F, Kanazawa K, Ohno S, Morita H, Ukimura A, Mishima N, Otsuka F, Ohyama Y, Nara N, Murakami K, Mashiba K, Akazawa K, Yamamoto K, Tanei M, Yamanouchi M, Senda S, Tazuma S, Hayashi J. Relationships between Causes of Fever of Unknown Origin and Inflammatory Markers: A Multicenter Collaborative Retrospective Study. Intern Med 2015; 54:1989-94. [PMID: 26278289 DOI: 10.2169/internalmedicine.54.3313] [Citation(s) in RCA: 8] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
OBJECTIVE Although inflammatory markers, such as the white blood cell (WBC) count, erythrocyte sedimentation rate (ESR) and levels of C-reactive protein (CRP) and procalcitonin, are widely used to differentiate causes of fever of unknown origin (FUO), little is known about the usefulness of this approach. We evaluated relationships between the causes of classical FUO and the levels of inflammatory markers. METHODS A nationwide retrospective study including 17 hospitals affiliated with the Japanese Society of Hospital General Medicine was conducted. PATIENTS This study included 121 patients ≥18 years old diagnosed with "classical FUO" (axillary temperature ≥38.0°C at least twice over a ≥3-week period without elucidation of the cause on three outpatient visits or during three days of hospitalization) between January and December 2011. RESULTS The causative disease was infectious diseases in 28 patients (23.1%), non-infectious inflammatory disease (NIID) in 37 patients (30.6%), malignancy in 13 patients (10.7%), other in 15 patients (12.4%) and unknown in 28 patients (23.1%). The rate of malignancy was significantly higher for a WBC count of <4,000/μL than for a WBC count of 4,000-8,000/μL (p=0.015). Among the patients with a higher WBC count, the rate of FUO due to NIID tended to be higher and the number of unknown cases tended to be lower. All FUO patients with malignancy showed an ESR of >40 mm/h. A normal ESR appeared to constitute powerful evidence for excluding a diagnosis of malignancy. In contrast, the concentrations of both serum CRP and procalcitonin appeared to be unrelated to the causative disease. CONCLUSION The present study identified inflammatory markers that should be considered in the differential diagnosis of classical FUO, providing useful information for future diagnosis.
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Affiliation(s)
- Toshio Naito
- Department of General Medicine, Juntendo University School of Medicine, Japan
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25
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Hagiwara S, Kaneko M, Murata M, Aoki M, Nakajima J, Kanbe M, Ohyama Y, Tamura J, Oshima K. Study on the Effectiveness of Cardiopulmonary Resuscitation in Elderly Patients Presenting with Cardiopulmonary Arrest on Arrival. Intern Med 2015; 54:1859-63. [PMID: 26234225 DOI: 10.2169/internalmedicine.54.4476] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
OBJECTIVE This study was conducted to determine whether a policy of not attempting to resuscitate patients who are 80 years of age and older with cardiopulmonary arrest on arrival is justifiable. METHODS The protocol of this study was approved without the need for informed consent by the research ethics board of Gunma University Hospital. We prospectively analyzed patients with cardiopulmonary arrest on arrival that was due to an intrinsic reason who were taken to Gunma University Hospital between January 2013 and March 2014. The patients were divided into two groups: patients who were less than 80 years of age (L group) and those aged 80 years and older (H group). We compared the patients' characteristics, including the etiology of cardiac arrest, and the prognosis between the two groups. RESULTS A total of 103 patients with cardiopulmonary arrest on arrival were enrolled. There were no significant differences in the patients' characteristics, such as age, sex, witness and bystander cardiopulmonary resuscitation, and transportation time between the two groups. The return of spontaneous circulation was obtained in 14 patients (25.5%) in the L group and in 9 patients (18.8%) in the H group; however, no significant difference was seen between the two groups. Two patients in the L group were in good neurological condition when they were discharged; however, the other patients did not survive. CONCLUSION Even patients 80 years of age and older can be resuscitated to spontaneous circulation. We do not endorse a policy that recommends not performing cardiopulmonary resuscitation based solely on the age of the patient.
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Affiliation(s)
- Shuichi Hagiwara
- Department of Emergency Medicine, Gunma University Graduate School of Medicine, Japan
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26
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Hagiwara S, Oshima K, Murata M, Kaneko M, Aoki M, Kanbe M, Nakamura T, Ohyama Y, Tamura J. Model for predicting the injury severity score. Acute Med Surg 2014; 2:158-162. [PMID: 29123714 DOI: 10.1002/ams2.89] [Citation(s) in RCA: 6] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2014] [Accepted: 09/02/2014] [Indexed: 11/09/2022] Open
Abstract
Aim To determine the formula that predicts the injury severity score from parameters that are obtained in the emergency department at arrival. Methods We reviewed the medical records of trauma patients who were transferred to the emergency department of Gunma University Hospital between January 2010 and December 2010. The injury severity score, age, mean blood pressure, heart rate, Glasgow coma scale, hemoglobin, hematocrit, red blood cell count, platelet count, fibrinogen, international normalized ratio of prothrombin time, activated partial thromboplastin time, and fibrin degradation products, were examined in those patients on arrival. To determine the formula that predicts the injury severity score, multiple linear regression analysis was carried out. The injury severity score was set as the dependent variable, and the other parameters were set as candidate objective variables. IBM spss Statistics 20 was used for the statistical analysis. Statistical significance was set at P < 0.05. To select objective variables, the stepwise method was used. Results A total of 122 patients were included in this study. The formula for predicting the injury severity score (ISS) was as follows: ISS = 13.252-0.078(mean blood pressure) + 0.12(fibrin degradation products). The P-value of this formula from analysis of variance was <0.001, and the multiple correlation coefficient (R) was 0.739 (R2 = 0.546). The multiple correlation coefficient adjusted for the degrees of freedom was 0.538. The Durbin-Watson ratio was 2.200. Conclusions A formula for predicting the injury severity score in trauma patients was developed with ordinary parameters such as fibrin degradation products and mean blood pressure. This formula is useful because we can predict the injury severity score easily in the emergency department.
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Affiliation(s)
- Shuichi Hagiwara
- Department of Emergency Medicine Gunma University Graduate School of Medicine Maebashi Gunma Japan.,Emergency and General Medical Center Gunma University Hospital Maebashi Gunma Japan
| | - Kiyohiro Oshima
- Department of Emergency Medicine Gunma University Graduate School of Medicine Maebashi Gunma Japan.,Emergency and General Medical Center Gunma University Hospital Maebashi Gunma Japan
| | - Masato Murata
- Department of Emergency Medicine Gunma University Graduate School of Medicine Maebashi Gunma Japan.,Emergency and General Medical Center Gunma University Hospital Maebashi Gunma Japan
| | - Minoru Kaneko
- Department of Emergency Medicine Gunma University Graduate School of Medicine Maebashi Gunma Japan.,Emergency and General Medical Center Gunma University Hospital Maebashi Gunma Japan
| | - Makoto Aoki
- Department of Emergency Medicine Gunma University Graduate School of Medicine Maebashi Gunma Japan.,Emergency and General Medical Center Gunma University Hospital Maebashi Gunma Japan
| | - Masahiko Kanbe
- Emergency and General Medical Center Gunma University Hospital Maebashi Gunma Japan.,Department of General Medicine Gunma University Graduate School of Medicine Maebashi Gunma Japan
| | - Takuro Nakamura
- Department of Emergency Medicine Gunma University Graduate School of Medicine Maebashi Gunma Japan.,Emergency and General Medical Center Gunma University Hospital Maebashi Gunma Japan
| | - Yoshio Ohyama
- Emergency and General Medical Center Gunma University Hospital Maebashi Gunma Japan.,Department of General Medicine Gunma University Graduate School of Medicine Maebashi Gunma Japan
| | - Jun'ichi Tamura
- Emergency and General Medical Center Gunma University Hospital Maebashi Gunma Japan.,Department of General Medicine Gunma University Graduate School of Medicine Maebashi Gunma Japan
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Fukuda M, Takizawa S, Kawamoto Y, Ohyama Y, Inoue K, Suzuki S, Sakashita H. Expression of MUC1 in human squamous cell carcinoma of the oral cavity. J Oral Maxillofac Surg 2014. [DOI: 10.1016/j.joms.2014.06.180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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28
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Furukawa S, Moriyama M, Kawano S, Tanaka A, Maehara T, Hayashida JN, Goto Y, Kiyoshima T, Shiratsuchi H, Ohyama Y, Ohta M, Imabayashi Y, Nakamura S. Clinical relevance of Küttner tumour and IgG4-related dacryoadenitis and sialoadenitis. Oral Dis 2014; 21:257-62. [PMID: 24844187 PMCID: PMC4359042 DOI: 10.1111/odi.12259] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Revised: 05/05/2014] [Accepted: 05/14/2014] [Indexed: 12/24/2022]
Abstract
Objectives Küttner tumour (KT), so-called chronic sclerosing sialoadenitis, is characterised by concomitant swelling of the submandibular glands secondary to strong lymphocytic infiltration and fibrosis independent of sialolith formation. However, recent studies have indicated that some patients with KT develop high serum levels of IgG4 and infiltration of IgG4-positive plasma cells, namely IgG4-related dacryoadenitis and sialoadenitis (IgG4-DS), so-called Mikulicz's disease. The aim of this study was to clarify the clinical and pathological associations between KT and IgG4-DS. Materials and Methods Fifty-four patients pathologically diagnosed with KT or chronic sialoadenitis were divided into two groups according to the presence or absence of sialolith (KT-S (+) or KT-S (−), respectively). Results There were no significant differences in the clinical findings, including the mean age, sex and disease duration, between the two groups. All patients in the KT-S (+) group showed unilateral swelling without infiltration of IgG4-positive plasma cells or a history of other IgG4-related diseases (IgG4-RD), while those in the KT-S (−) group showed bilateral swelling (37.5%), strong infiltration of IgG4-positive plasma cells (87.5%) and a history of other IgG4-RD (12.5%). Conclusions These results suggest an association between the pathogeneses of KT-S (−) and IgG4-DS, but not KT-S (+).
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Affiliation(s)
- S Furukawa
- Section of Oral and Maxillofacial Oncology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
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29
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Hagiwara S, Murata M, Kaneko M, Aoki M, Kanbe M, Ohyama Y, Tamura J, Oshima K. Usefulness of serum fibrin degradation products and D-dimer levels as biomarkers to predict return of spontaneous circulation in patients with cardiopulmonary arrest on arrival: comparison with acid-base balance. Acute Med Surg 2014; 1:222-227. [PMID: 29930852 DOI: 10.1002/ams2.44] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [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: 09/08/2013] [Accepted: 03/06/2014] [Indexed: 11/09/2022] Open
Abstract
Aim We evaluated the usefulness of fibrin degradation products and D-dimer levels in blood to predict return of spontaneous circulation in patients with cardiopulmonary arrest on arrival compared with anion gap and albumin-corrected anion gap. Methods We retrospectively reviewed the medical records of patients with cardiopulmonary arrest on arrival who had been transferred to the emergency department of our hospital in 2012. Patients were divided into two groups: patients with return of spontaneous circulation (ROSC(+) group), and those without (ROSC(-) group). The levels of anion gap, albumin-corrected anion gap, fibrin degradation products and D-dimer measured on arrival were compared between the two groups. Results Fifty-three patients could be analyzed. The anion gap and albumin-corrected anion gap levels were significantly better in the ROSC(+) group than in the ROSC(-) group (anion gap, 28.7 mmol/L [median] versus 39.1 mmol/L; albumin-corrected anion gap, 31.1 mmol/L versus 40.9 mmol/L). The fibrin degradation product and D-dimer levels were significantly lower in the ROSC(+) group than in the ROSC(-) group (fibrin degradation products, 32.1 μg/mL versus 157.4 μg/mL; D-dimer, 9.9 μg/mL versus 37.4 μg/mL). The area under receiver operating characteristic curves to evaluate the relationship with return of spontaneous circulation of anion gap, albumin-corrected anion gap, fibrin degradation products, and D-dimer were 0.664, 0.667, 0.714, and 0.707, respectively. Conclusion Fibrin degradation products and D-dimer levels might be more useful as predictors of return of spontaneous circulation than anion gap and albumin-corrected anion gap.
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Affiliation(s)
- Shuichi Hagiwara
- Department of Emergency Medicine Gunma University Graduate School of Medicine Maebashi Japan.,Emergency and General Medical Center Gunma University Hospital Maebashi Japan
| | - Masato Murata
- Department of Emergency Medicine Gunma University Graduate School of Medicine Maebashi Japan.,Emergency and General Medical Center Gunma University Hospital Maebashi Japan
| | - Minoru Kaneko
- Department of Emergency Medicine Gunma University Graduate School of Medicine Maebashi Japan.,Emergency and General Medical Center Gunma University Hospital Maebashi Japan
| | - Makoto Aoki
- Department of Emergency Medicine Gunma University Graduate School of Medicine Maebashi Japan.,Emergency and General Medical Center Gunma University Hospital Maebashi Japan
| | - Masahiko Kanbe
- Emergency and General Medical Center Gunma University Hospital Maebashi Japan
| | - Yoshio Ohyama
- Emergency and General Medical Center Gunma University Hospital Maebashi Japan.,Department of General Medicine Gunma University Graduate School of Medicine Maebashi Japan
| | - Jun'ichi Tamura
- Emergency and General Medical Center Gunma University Hospital Maebashi Japan.,Department of General Medicine Gunma University Graduate School of Medicine Maebashi Japan
| | - Kiyohiro Oshima
- Department of Emergency Medicine Gunma University Graduate School of Medicine Maebashi Japan.,Emergency and General Medical Center Gunma University Hospital Maebashi Japan
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Ohyama Y, Matsushita H, Minami A, Kanazawa H, Suzuki T, Watanabe K, Wakatsuki A. Effect of the ethanol extract ofPleurotus eryngiion bone metabolism in ovariectomized rats. Climacteric 2014; 17:492-9. [DOI: 10.3109/13697137.2014.891197] [Citation(s) in RCA: 2] [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: 12/26/2022]
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31
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Naito T, Mizooka M, Mitsumoto F, Kanazawa K, Torikai K, Ohno S, Morita H, Ukimura A, Mishima N, Otsuka F, Ohyama Y, Nara N, Murakami K, Mashiba K, Akazawa K, Yamamoto K, Senda S, Yamanouchi M, Tazuma S, Hayashi J. Diagnostic workup for fever of unknown origin: a multicenter collaborative retrospective study. BMJ Open 2013; 3:e003971. [PMID: 24362014 PMCID: PMC3884594 DOI: 10.1136/bmjopen-2013-003971] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVE Fever of unknown origin (FUO) can be caused by many diseases, and varies depending on region and time period. Research on FUO in Japan has been limited to single medical institution or region, and no nationwide study has been conducted. We identified diseases that should be considered and useful diagnostic testing in patients with FUO. DESIGN A nationwide retrospective study. SETTING 17 hospitals affiliated with the Japanese Society of Hospital General Medicine. PARTICIPANTS This study included patients ≥18 years diagnosed with 'classical fever of unknown origin' (axillary temperature ≥38°C at least twice over a ≥3-week period without elucidation of a cause at three outpatient visits or during 3 days of hospitalisation) between January and December 2011. RESULTS A total of 121 patients with FUO were enrolled. The median age was 59 years (range 19-94 years). Causative diseases were infectious disease in 28 patients (23.1%), non-infectious inflammatory disease in 37 (30.6%), malignancy in 13 (10.7%), other in 15 (12.4%) and unknown in 28 (23.1%). The median interval from fever onset to evaluation at each hospital was 28 days. The longest time required for diagnosis involved a case of familial Mediterranean fever. Tests performed included blood cultures in 86.8%, serum procalcitonin in 43.8% and positron emission tomography in 29.8% of patients. CONCLUSIONS With the widespread use of CT, FUO due to deep-seated abscess or solid tumour is decreasing markedly. Owing to the influence of the ageing population, polymyalgia rheumatica was the most frequent cause (9 patients). Four patients had FUO associated with HIV/AIDS, an important cause of FUO in Japan. In a relatively small number of cases, cause remained unclear. This may have been due to bias inherent in a retrospective study. This study identified diseases that should be considered in the differential diagnosis of FUO.
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Affiliation(s)
- Toshio Naito
- Department of General Medicine, Juntendo University School of Medicine, Tokyo, Japan
| | - Masafumi Mizooka
- Department of General Internal Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Fujiko Mitsumoto
- Department of General Internal Medicine, Kyushu University Hospital, Fukuoka, Japan
| | - Kenji Kanazawa
- Department of General Internal Medicine, Kobe University Hospital, Kobe, Japan
| | - Keito Torikai
- Department of General Internal Medicine, St Marianna University School of Medicine, Kawasaki, Japan
| | - Shiro Ohno
- Department of General Medicine, Nara Medical University, Nara, Japan
| | - Hiroyuki Morita
- Department of General Internal Medicine, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Akira Ukimura
- Department of General Medicine, Osaka Medical College, Osaka, Japan
| | - Nobuhiko Mishima
- Department of General Internal Medicine, Kainan Hospital, Aichi Prefectural Welfare Federation of Agricultural Cooperatives, Aichi, Japan
| | - Fumio Otsuka
- Department of General Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Yoshio Ohyama
- Department of General Medicine, Gunma University Graduate School of Medicine, Gunma, Japan
| | - Noriko Nara
- Department of General Medicine, Yokohama City University Medical Center, Yokohama, Japan
| | - Kazunari Murakami
- Department of General Medicine, Faculty of Medicine, Oita University, Oita, Japan
| | - Kouichi Mashiba
- Department of General Medicine, Kitakyushu Municipal Medical Center, Kitakyushu, Japan
| | - Kenichiro Akazawa
- Department of Internal Medicine, Shonan Fujisawa Tokushukai Hospital, Fujisawa, Japan
| | - Koji Yamamoto
- Department of General Medicine, Sumitomo Hospital, Osaka, Japan
| | - Shoichi Senda
- Department of Integrated Medicine, Kagawa University School of Medicine, Kagawa, Japan
| | - Masashi Yamanouchi
- Department of General Medicine, Juntendo University School of Medicine, Tokyo, Japan
| | - Susumu Tazuma
- Department of General Internal Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Jun Hayashi
- Department of General Internal Medicine, Kyushu University Hospital, Fukuoka, Japan
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Ohyama Y, Kawamoto Y, Chiba T, Maeda G, Sakashita H, Imai K. Inhibition of TGF-β and EGF pathway gene expression and migration of oral carcinoma cells by mucosa-associated lymphoid tissue 1. Br J Cancer 2013; 109:207-14. [PMID: 23778523 PMCID: PMC3708584 DOI: 10.1038/bjc.2013.307] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [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: 01/03/2013] [Revised: 04/01/2013] [Accepted: 05/20/2013] [Indexed: 12/02/2022] Open
Abstract
Background: Expression of mucosa-associated lymphoid tissue 1 (MALT1) is inactivated in oral carcinoma patients with worse prognosis. However, the role in carcinoma progression is unknown. Unveiling genes under the control of MALT1 is necessary to understand the pathology of carcinomas. Methods: Gene data set differentially transcribed in MALT1-stably expressing and -marginally expressing oral carcinoma cells was profiled by the microarray analysis and subjected to the pathway analysis. Migratory abilities of cells in response to MALT1 were determined by wound-healing assay and time-lapse analysis. Results: Totally, 2933 genes upregulated or downregulated in MALT1-expressing cells were identified. The subsequent pathway analysis implicated the inhibition of epidermal growth factor and transforming growth factor-β signalling gene expression, and highlighted the involvement in the cellular movement. Wound closure was suppressed by wild-type MALT1 (66.4%) and accelerated by dominant-negative MALT1 (218.6%), and the velocities of cell migration were increased 0.2-fold and 3.0-fold by wild-type and dominant-negative MALT1, respectively. Conclusion: These observations demonstrate that MALT1 represses genes activating the aggressive phenotype of carcinoma cells, and suggest that MALT1 acts as a tumour suppressor and that the loss of expression stimulates oral carcinoma progression.
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Affiliation(s)
- Y Ohyama
- Department of Oral and Maxillofacial Surgery 2, Meikai University, 1-1 Keyakidai, Sakado, Saitama 350-0283, Japan
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Hagiwara S, Oshima K, Furukawa K, Nakamura T, Ohyama Y, Tamura JI. The significance of albumin corrected anion gap in patients with cardiopulmonary arrest. Ann Thorac Cardiovasc Surg 2012; 19:283-8. [PMID: 23232266 DOI: 10.5761/atcs.oa.12.01942] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
PURPOSE The reliable parameter, which can be obtained easily and quickly, is necessary to predict the return of spontaneous circulation (ROSC) of patients with cardiopulmonary arrest (CPA) in the emergency situation. In this study, we evaluated the significance of albumin corrected anion gap (ACAG) for the prediction of ROSC in patients with CPA. PATIENTS AND METHODS In 166 patients with CPA between January 2009 and December 2010, 132 patients could be analyzed retrospectively. We compared acute physiology and chronic health evaluation (APACHE) II score, sequential organ failure assessment(SOFA) score, anion gap (AG) and ACAG levels between patients with/without ROSC and evaluated the significance of AG and ACAG to predict ROSC in patients with CPA. RESULTS Both AG and ACAG were significantly lower in patients with ROSC than in patients without ROSC. Both AG and ACAG had the relation with APACHE II and SOFA scores, however, coefficients of correlation with APACHE II and SOFA score were higher in ACAG (r = 0.506) than in AG (r = 0.482). The sensitivity, specificity, positive predictive value, and negative predictive value of ACAG for the prediction of ROSC in patients with CPA were better than those of AG. CONCLUSION Our study shows that both AG and ACAG have the relation with ROSC and ACAG is better to predict the ROSC following CPR in patients with CPA compared with AG. ACAG can be easily obtained in the emergency situation, and ACAG is a useful parameter to predict ROSC in patients with CPA.
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Affiliation(s)
- Shuichi Hagiwara
- Department of Emergency Medicine, Gunma University Gradu ate School of Medicine, Maebashi, Gunma, Japan
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Moriyama M, Hayashida JN, Toyoshima T, Ohyama Y, Shinozaki S, Tanaka A, Maehara T, Nakamura S. Cytokine/chemokine profiles contribute to understanding the pathogenesis and diagnosis of primary Sjögren's syndrome. Clin Exp Immunol 2012; 169:17-26. [PMID: 22670774 PMCID: PMC3390469 DOI: 10.1111/j.1365-2249.2012.04587.x] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
To investigate the pathogenesis of localized autoimmune damage in Sjögren's syndrome (SS) by examining the expression patterns of cytokines, chemokines and chemokine receptors at sites of autoimmune damage. mRNA expression of these molecules in the labial salivary glands (LSGs) and peripheral blood mononuclear cells (PBMCs) from 36 SS patients was examined using a real-time polymerase chain reaction-based method. Subsets of the infiltrating lymphocytes and chemokines/chemokine receptors expression in the LSG specimens were examined by immunohistochemistry. Cytokines/chemokine concentrations in the saliva were analysed using flow cytometry or enzyme-linked immunosorbent assay. mRNA expression of T helper type 1 (Th1) cytokines, chemokines and chemokine receptors was higher in LSGs than in PBMCs. In contrast, mRNA expression of Th2 cytokines, chemokines [thymus and activation-regulated chemokine (TARC/CCL17), macrophage-derived chemokine (MDC/CCL22)] and chemokine receptor (CCR4) was associated closely with strong lymphocytic accumulation in LSGs. Furthermore, TARC and MDC were detected immunohistochemically in/around the ductal epithelial cells in LSGs, whereas CCR4 was detected on infiltrating lymphocytes. The concentrations of these cytokines/chemokines were significantly higher in the saliva from SS patients than those from controls, and the concentrations of Th2 cytokines/chemokines were associated closely with strong lymphocytic accumulation in LSGs. These results suggest that SS might be initiated and/or maintained by Th1 and Th17 cells and progress in association with Th2 cells via the interaction between particular chemokines/chemokine receptors. Furthermore, the measurement of cytokines/chemokines in saliva is suggested to be useful for diagnosis and also to reveal disease status.
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Affiliation(s)
- M Moriyama
- Section of Oral and Maxillofacial Oncology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, Maidashi, Higashi-ku, Fukuoka, Japan
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Hayashida JN, Nakamura S, Toyoshima T, Moriyama M, Sasaki M, Kawamura E, Ohyama Y, Kumamaru W, Shirasuna K. Possible involvement of cytokines, chemokines and chemokine receptors in the initiation and progression of chronic GVHD. Bone Marrow Transplant 2012; 48:115-23. [PMID: 22659679 DOI: 10.1038/bmt.2012.100] [Citation(s) in RCA: 21] [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] [Indexed: 11/09/2022]
Abstract
Chronic GVHD (cGVHD) after allogeneic hematopoietic SCT (HSCT) is characterized by an infiltration of T cells into target organs including the oral mucosa and salivary glands. This study was designed to clarify the molecular mechanism of the local accumulation of pathogenic T cells in cGVHD. The expression of cytokines, chemokines and chemokine receptors in the buccal mucosa (BM), labial salivary glands (LSG) and PBMC from 16 patients with cGVHD after allogeneic HSCT was examined. The mRNA expression of T helper 1 (Th1) and Th2 cytokines, and several chemokines and chemokine receptors was significantly increased in the BM and LSG from cGVHD patients, in comparison with both those in the BM and LSG from controls, respectively, and also with those in the PBMC from cGVHD patients. Furthermore, the mRNA expression of Th2 cytokines, macrophage-derived chemokine and CC chemokine receptor 4 was closely associated with a strong T-cell infiltration in the BM and LSG from cGVHD patients. These results suggest that cGVHD might be initiated and/or maintained by Th1/Th0 cells and thereafter progresses in association with Th2 cell accumulation via the interaction of particular chemokine and chemokine receptors.
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Affiliation(s)
- J-N Hayashida
- Section of Oral and Maxillofacial Oncology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, Fukuoka 812-8582, Japan
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Ohyama Y, Katafuchi M, Almehmadi A, Venkitapathi S, Jaha H, Ehrenman J, Morcos J, Aljamaan R, Mochida Y. Modulation of matrix mineralization by Vwc2-like protein and its novel splicing isoforms. Biochem Biophys Res Commun 2011; 418:12-6. [PMID: 22209847 DOI: 10.1016/j.bbrc.2011.12.075] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2011] [Accepted: 12/15/2011] [Indexed: 12/11/2022]
Abstract
In search of new cysteine knot protein (CKP) family members, we found a novel gene called von Willebrand factor C domain-containing protein 2-like (Vwc2l, also known as Brorin-like) and its transcript variants (Vwc2l-1, Vwc2l-2 and Vwc2l-3). Based on the deduced amino acid sequence, Vwc2l-1 has a signal peptide and 2 cysteine-rich (CR) domains, while Vwc2l-2 lacks a part of 2nd CR domain and Vwc2l-3 both CR domains. Although it has been reported that the expression of Brorin-like was predominantly observed in brain, we found that Vwc2l transcript variants were detected in more ubiquitous tissues. In osteoblasts, the induction of Vwc2l expression was observed at matrix mineralization stage. When Vwc2l was stably transfected into osteoblasts, the matrix mineralization was markedly accelerated in Vwc2l-expressing clones compared to that in the control, indicating the modulatory effect of Vwc2l protein on osteoblastic cell function. The mechanistic insight of Vwc2l-modulation was further investigated and we found that the expression of Osterix, one of the key osteogenic markers, was significantly increased by addition of all Vwc2l isoform proteins. Taken together, Vwc2l is a novel secreted protein that promotes matrix mineralization by modulating Osterix expression likely through TGF-β superfamily growth factor signaling pathway. Our data may provide mechanistic insights into the biological functions of this novel CKP member in bone and further suggest a novel approach to enhance osteoblast function, which enables to accerelate bone formation, regeneration and healing.
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Affiliation(s)
- Yoshio Ohyama
- Department of Periodontology and Oral Biology, Boston University, Henry M. Goldman School of Dental Medicine, 700 Albany Street, Boston, MA 02118, USA
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Michikawa C, Uzawa N, Kayamori K, Sonoda I, Ohyama Y, Okada N, Yamaguchi A, Amagasa T. Clinical significance of lymphatic and blood vessel invasion in oral tongue squamous cell carcinomas. Oral Oncol 2011; 48:320-4. [PMID: 22178206 DOI: 10.1016/j.oraloncology.2011.11.014] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2011] [Revised: 11/14/2011] [Accepted: 11/20/2011] [Indexed: 02/07/2023]
Abstract
Although vascular invasion (VI) is recognized as an important predictor of lymph node metastasis and a significant prognostic factor in head and neck squamous cell carcinoma (HNSCC), there is currently no common definition for the pathological evaluation of VI status. We reviewed the medical records of 63 consecutive resected primary oral tongue SCCs (OTSCCs) without preoperative treatment between June 1999 and April 2008, and evaluated VI status by investigating lymphatic vessel invasion (LVI) and blood vessel invasion (BVI) by using immunohistochemistry (IHC) with monoclonal antibody D2-40 (D2-40) and Elastica van Gieson (EVG) staining, respectively. Subsequently, we analyzed their correlations with cervical lymph node metastasis and prognosis. LVI was found in 16 of the 63 tumors (25.4%) and BVI was in 32 tumors (50.8%). Univariate analysis revealed that the presence of LVI is statistically correlated with lymph node metastasis. Moreover, multivariate logistic regression analysis revealed that LVI is an independent risk factor of nodal metastasis (odds ratio=4.262, 95% confidence interval=1.262-14.397, p=0.020). In contrast, Kaplan-Meier survival analysis revealed that patients with BVI had a significantly shorter disease-free survival (DFS) and overall survival (OS) rates than those without BVI (68.6% versus 90.3%, p=0.028 and 68.6% versus 93.5%, p=0.013, respectively). The present study clearly demonstrated that LVI at primary OTSCC had significant correlation with lymph node metastasis, and that BVI was significantly associated with recurrence and poor prognosis. Evaluation of VI status, as LVI and BVI status separately, using IHC with D2-40 and EVG staining may be useful in predicting lymph node metastasis and poor prognosis in OTSCCs.
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Affiliation(s)
- Chieko Michikawa
- Maxillofacial Surgery, Maxillofacial Reconstruction and Function, Division of Maxillofacial and Neck Reconstruction, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan.
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Nakata Y, Uzawa N, Takahashi KI, Sumino J, Michikawa C, Sato H, Sonoda I, Ohyama Y, Okada N, Amagasa T. EGFR gene copy number alteration is a better prognostic indicator than protein overexpression in oral tongue squamous cell carcinomas. Eur J Cancer 2011; 47:2364-72. [PMID: 21852109 DOI: 10.1016/j.ejca.2011.07.006] [Citation(s) in RCA: 24] [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: 02/21/2011] [Revised: 06/13/2011] [Accepted: 07/15/2011] [Indexed: 11/28/2022]
Abstract
Although epidermal growth factor receptor (EGFR) is particularly important in the pathogenesis of head and neck squamous cell carcinomas (HNSCCs), conflicting data have been reported on the correlation between EGFR copy number and survival and the association between EGFR copy number and protein expression. Anatomical site of the tumour in HNSCCs may likely contribute to the discordance of the above points as EGFR expression may differ between the sub-sites of HNSCCs. Thus, in this study, we focused on oral tongue squamous cell carcinomas (OTSCCs). To investigate the association between EGFR copy number alteration and overexpression and to determine which is the more reliable prognostic indicator, Fluorescence in situ hybridisation (FISH) and immunohistochemical staining (IHC) were performed at a single institution on samples from 89 patients with OTSCCs undergoing surgery as the primary treatment modality. Thirty-two (36%) of 89 cases demonstrated an EGFR copy number alteration. EGFR protein expression was found in all 89 cases, of which 82.0% showed overexpression. No significant correlation was found between gene copy number and protein overexpression. Gene copy number alteration was significantly associated with reduced disease-free survival (P=0.048) and overall survival (P=0.001). Multivariate Cox proportional hazards analysis demonstrated that EGFR copy number increase was significantly correlated with overall survival (P=0.001). EGFR copy number status is a more reliable indicator than protein overexpression of the survival rate in OTSCCs. FISH analysis of the EGFR status is useful in predicting poor prognosis in OTSCCs.
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Affiliation(s)
- Yoshimi Nakata
- Maxillofacial Surgery, Maxillofacial Reconstruction and Function, Division of Maxillofacial and Neck Reconstruction, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan.
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Uchiyama T, Tomono S, Utsugi T, Ohyama Y, Nakamura T, Tomura H, Kawazu S, Okajima F, Kurabayashi M. Constitutively active heat shock factor 1 enhances glucose-driven insulin secretion. Metabolism 2011; 60:789-98. [PMID: 20817212 DOI: 10.1016/j.metabol.2010.07.029] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2009] [Revised: 07/20/2010] [Accepted: 07/20/2010] [Indexed: 01/09/2023]
Abstract
Weak pancreatic β-cell function is a cause of type 2 diabetes mellitus. Glucokinase regulates insulin secretion via phosphorylation of glucose. The present study focused on a system for the self-protection of pancreatic cell by expressing heat shock factor (HSF) and heat shock protein (HSP) to improve insulin secretion without inducing hypoglycemia. We previously generated a constitutively active form of human HSF1 (CA-hHSF1). An adenovirus expressing CA-hHSF1 using the cytomegalovirus promoter was generated to infect mouse insulinoma cells (MIN6 cells). An adenovirus expressing CA-hHSF1 using a human insulin promoter (Ins-CA-hHSF1) was also generated to infect rats. We investigated whether CA-hHSF1 induces insulin secretion in MIN6 cells and whether Ins-CA-hHSF1 can improve blood glucose and serum insulin levels in healthy Wister rats and type 2 diabetes mellitus model rats. CA-hHSF1 expression increased insulin secretion 1.27-fold compared with the overexpression of wild-type hHSF1 in MIN6 cells via induction of HSP90 expression and subsequent activation of glucokinase. This mechanism is associated with activation of both glucokinase and neuronal nitric oxide synthase. Ins-CA-hHSF1 improved blood glucose levels in neonatal streptozotocin-induced diabetic rats. Furthermore, Ins-CA-hHSF1 reduced oral glucose tolerance testing results in healthy Wister rats because of an insulin spike at 15 minutes; however, it did not induce hypoglycemia. CA-hHSF1 induced insulin secretion both in vitro and in vivo. These findings suggest that gene therapy with Ins-CA-hHSF1 will be able to be used to treat patients with type 2 diabetes mellitus and impaired glucose tolerance without causing hypoglycemia at fasting.
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Affiliation(s)
- Tsuyoshi Uchiyama
- Laboratory of Signal Transduction and Department of Cell Biology, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi, Gunma 371-8512, Japan.
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Sato H, Uzawa N, Takahashi KI, Myo K, Ohyama Y, Amagasa T. Prognostic utility of chromosomal instability detected by fluorescence in situ hybridization in fine-needle aspirates from oral squamous cell carcinomas. BMC Cancer 2010; 10:182. [PMID: 20459605 PMCID: PMC2881888 DOI: 10.1186/1471-2407-10-182] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2009] [Accepted: 05/06/2010] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Although chromosomal instability (CIN) has been detected in many kinds of human malignancies by means of various methods, there is no practical assessment for small clinical specimens. In this study, we evaluated CIN in fine-needle aspiration (FNA) biopsied oral squamous cell carcinomas (SCCs) using fluorescence in situ hybridization (FISH) analysis, and investigated its prognostic significance. METHODS To evaluate CIN status of tumors, FISH with genomic probes for the centromeres of chromosomes 7, 9, and 11 was performed on specimens obtained by FNA from 77 patients with primary oral SCCs. RESULTS High-grade CIN (CIN3) was observed in 11.7% (9/77) of patients with oral SCCs and was associated significantly with reduced disease-free survival (p = .008) and overall survival (p = .003). Multivariate Cox proportional hazards analysis showed that CIN status was significantly correlated with disease-free survival (p = .035) and overall survival (p = .041). CONCLUSION Analysis of CIN status using FISH on FNA biopsy specimens may be useful in predicting of recurrence and poor prognosis in patients with oral SCCs.
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Affiliation(s)
- Hiroaki Sato
- Maxillofacial Surgery, Maxillofacial Reconstruction and Function, Division of Maxillofacial and Neck Reconstruction, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan
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Nifuji A, Ideno H, Ohyama Y, Takanabe R, Araki R, Abe M, Noda M, Shibuya H. Nemo-like kinase (NLK) expression in osteoblastic cells and suppression of osteoblastic differentiation. Exp Cell Res 2010; 316:1127-36. [PMID: 20116374 DOI: 10.1016/j.yexcr.2010.01.023] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2009] [Revised: 01/19/2010] [Accepted: 01/21/2010] [Indexed: 12/22/2022]
Abstract
Mitogen-activated protein kinases (MAPKs) regulate proliferation and differentiation in osteoblasts. The vertebral homologue of nemo, nemo-like kinase (NLK), is an atypical MAPK that targets several signaling components, including the T-cell factor/lymphoid enhancer factor (TCF/Lef1) transcription factor. Recent studies have shown that NLK forms a complex with the histone H3-K9 methyltransferase SETDB1 and suppresses peroxisome proliferator-activated receptor (PPAR)-gamma:: action in the mesenchymal cell line ST2. Here we investigated whether NLK regulates osteoblastic differentiation. We showed that NLK mRNA is expressed in vivo in osteoblasts at embryonic day 18.5 (E18.5) mouse calvariae. By using retrovirus vectors, we performed forced expression of NLK in primary calvarial osteoblasts (pOB cells) and the mesenchymal cell line ST2. Wild-type NLK (NLK-WT) suppressed alkaline phosphatase activity and expression of bone marker genes such as alkaline phosphatase, type I procollagen, runx2, osterix, steopontin and osteocalcin in these cells. NLK-WT also decreased type I collagen protein expression in pOB and ST2 cells. Furthermore, mineralized nodule formation was reduced in pOB cells overexpressing NLK-WT. In contrast, kinase-negative form of NLK (NLK-KN) did not suppress or partially suppress ALP activity and bone marker gene expression in pOB and ST2 cells. NLK-KN did not suppress nodule formation in pOB cells. In addition to forced expression, suppression of endogenous NLK expression by siRNA increased bone marker gene expression in pOB and ST2 cells. Finally, transcriptional activity analysis of gene promoters revealed that NLK-WT suppressed Wnt1 activation of TOP flash promoter and Runx2 activation of the osteocalcin promoter. Taken together, these results suggest that NLK negatively regulates osteoblastic differentiation.
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Affiliation(s)
- Akira Nifuji
- National Institute of Radiological Sciences, Chiba, Japan.
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Maeda K, Yamashiro M, Michi Y, Suzuki T, Ohyama Y, Okada N, Amagasa T. Effective staining method with iodine for leukoplakia and lesions surrounding squamous cell carcinomas of the tongue assessed by colorimetric analysis. J Med Dent Sci 2009; 56:123-130. [PMID: 20432796] [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: 05/29/2023]
Abstract
To determine whether staining with iodine solution provides an efficient criterion for determining the area of resection for the lesions surrounding squamous cell carcinoma (SCC) and leukoplakia of the tongue, we determined the optimum density of iodine solution and staining procedure and analyzed the color of lightly stained lesions (LSLs) in relation to the histopathologic findings. Sixty-five patients with SCC or leukoplakia of the tongue were divided into two groups: lesions stained with 3% Lugol solution and restained with either 5% Lugol solution (n=38) or 10% iodine glycerin (n=27). Among the lesions stained with 5% Lugol solution, significant differences were found in all color values. Color difference values (DeltaE*ab) using 3% and 5% Lugol solutions were significantly different between epithelial hyperplasia/mild epithelial dysplasia and moderate to severe dysplasia (P < 0.05). According to the evaluations of five clinicians in 46 LSLs, a distinctive boundary was most often obtained using 5% Lugol solution. These results suggest that the most effective method for obtaining a clear boundary and distinguishing moderate to severe dysplasia from mild or no epithelial dysplasia according to the measured color value was to stain with 3% followed by 5% Lugol solution.
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Affiliation(s)
- Keiko Maeda
- Maxillofacial Surgery, Maxillofacial Reconstruction and Function, Division of Maxillofacial and Neck Reconstruction, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan.
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Nakamura T, Kawachi K, Saito Y, Saito T, Morishita K, Hoshino J, Hosoi T, Iwasaki T, Ohyama Y, Kurabayashi M. Effects of ARB or ACE-inhibitor administration on plasma levels of aldosterone and adiponectin in hypertension. Int Heart J 2009; 50:501-12. [PMID: 19609054 DOI: 10.1536/ihj.50.501] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [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: 11/18/2022]
Abstract
Aldosterone production causes vascular injury and may occur despite the long-term administration of angiotensin converting enzyme-inhibitors (ACE-I) (ie, aldosterone breakthrough). The angiotensin II receptor blocker (ARB) telmisartan can function as a ligand for peroxisome proliferator-activated receptor (PPAR) gamma. Stimulation of PPAR gamma has been demonstrated to raise adiponectin production and suppress angiotensin II type 1 receptor expression. Thus, we investigated the effect of the ACE-I perindopril erbumin (perindopril) and the ARB telmisartan on plasma levels of aldosterone and adiponectin.Patients with essential hypertension were randomly assigned to receive 48 weeks of perindopril (2-8 mg/d) or telmisartan (20-80 mg/d). We measured adiponectin, aldosterone, angiotensin II, and renin at weeks 0, 8, 24, and 48.A total of 53 subjects were randomized. Data on 51 subjects (25 in the perindopril group and 26 in the telmisartan group; mean age, 65.1 years) were available for analyses. Plasma aldosterone decreased significantly in both the telmisartan (69.9+/-5.6 to 58.1+/-5.4 pg/mL) and perindopril (74.1+/-4.7 to 64.7+/-5.3 pg/mL) groups at 8 weeks, but returned toward the baseline in the perindopril group (67.9+/-4.1 pg/mL) at 24 weeks. Plasma glycated hemoglobin levels or urine albumin did not change significantly after the treatment in either group.Telmisartan seemed to be more effective at suppressing aldosterone and raising adiponectin levels than perindopril; however, improvements in insulin sensitivity and albuminuria were not detected. These results are consistent with the idea that the use of an ARB with PPAR gamma stimulating activity is equivalent to ACE-I for the treatment of hypertension.
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Affiliation(s)
- Tetsuya Nakamura
- Clinical Investigation and Research Unit, Gunma University Hospital, Department of Medicine and Biological Science, Gunma University Graduate School of Medicine, Gunma, Japan
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Uchiyama T, Atsuta H, Utsugi T, Ohyama Y, Nakamura T, Nakai A, Nakata M, Maruyama I, Tomura H, Okajima F, Tomono S, Kawazu S, Nagai R, Kurarbayashi M. Simvastatin induces heat shock factor 1 in vascular endothelial cells. Atherosclerosis 2006; 188:265-73. [PMID: 16375908 DOI: 10.1016/j.atherosclerosis.2005.10.045] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2005] [Revised: 09/01/2005] [Accepted: 10/28/2005] [Indexed: 11/20/2022]
Abstract
Statins not only reduce serum cholesterol but they also improve vascular endothelial function independent of their lipid-lowering effects. However, except for the mechanism of nitric oxide induction via calveolin, the physiologic basis for the pleiotropic effect of statins remains unknown. In the present study, we investigated the relationship between the effects of statins on vascular endothelial cell function and heat shock proteins. We found that, in vascular endothelial cells, simvastatin increased the steady-state levels of heat shock proteins 90 and 70, and heme oxygenase-1 and caused the nuclear translocation of heat shock factor 1. A decoy oligonucleotide encoding the heat shock element inhibited statin-induced expression of heat shock protein 70, endothelial nitric oxide synthase, and thrombomodulin. This decoy oligonucleotide also inhibited the ability of statin to reduce endothelin-1 and plasminogen activator inhibitor-1 expression. These results indicate that statins improve vascular endothelial function via heat shock factor 1, which may contribute to their ability to improve cardiovascular disease.
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Affiliation(s)
- Tsuyoshi Uchiyama
- Department of Medicine and Biological Science, Gunma University Course of Medical Science, Graduate School of Medicine, Maebashi, Gunma, Japan
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Toyoshima T, Nakamura S, Kumamaru W, Kawamura E, Ishibashi H, Hayashida JN, Moriyama M, Ohyama Y, Sasaki M, Shirasuna K. Expression of tumor-associated antigen RCAS1 and its possible involvement in immune evasion in oral squamous cell carcinoma. J Oral Pathol Med 2006; 35:361-8. [PMID: 16762017 DOI: 10.1111/j.1600-0714.2006.00442.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND RCAS1 (receptor-binding cancer antigen expressed on SiSo cells) is known to induce apoptosis in its receptor-positive cells. The authors investigated RCAS1 expression in oral squamous cell carcinoma (SCC) and its association with the apoptosis of tumor-infiltrating lymphocytes (TILs). METHODS In 130 patients with oral SCC, the expression of RCAS1 in tumor cells was immunohistochemically examined and the apoptosis of TILs was examined by Terminal Deoxynucleotidyltransferase-mediated dUTP Nick End Labeling (TUNEL) staining. RESULTS RCAS1 was detected both on the cytoplasm and the membrane of tumor cells in 41 of 130 cases (31.5%). Focusing on the expression at the invasive front interacting with host immune cells, RCAS1 was detected in 22 of 130 cases (16.9%). The percentage of TUNEL-positive TILs in cases with RCAS1-positive SCCs was significantly higher than in cases with RCAS1-negative SCCs (P < 0.0001). CONCLUSIONS RCAS1 can be expressed on oral SCC cells and may be involved in the tumor escape from the host immune system by inducing the apoptosis of TILs.
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Affiliation(s)
- T Toyoshima
- Section of Oral and Maxillofacial Surgery, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
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48
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Sato H, Sato M, Kanai H, Uchiyama T, Iso T, Ohyama Y, Sakamoto H, Tamura J, Nagai R, Kurabayashi M. Mitochondrial reactive oxygen species and c-Src play a critical role in hypoxic response in vascular smooth muscle cells. Cardiovasc Res 2005; 67:714-22. [PMID: 15913578 DOI: 10.1016/j.cardiores.2005.04.017] [Citation(s) in RCA: 86] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2004] [Revised: 04/14/2005] [Accepted: 04/15/2005] [Indexed: 11/26/2022] Open
Abstract
OBJECTIVE Thickened atherosclerotic plaques are prone to be hypoxic because of poor perfusion. In this study, we tested (a) whether reactive oxygen species (ROS) and c-Src play roles in hypoxic induction of HIF-1alpha protein and PAI-1 gene expression in the rabbit aortic smooth muscle cell line C2/2 cells and primary cultures of rat aortic smooth muscle cells, and (b) how mitochondria act on the hypoxia-induced signaling mechanism. METHODS AND RESULTS Hypoxic exposure of C2/2 cells increased H2O2 generation, c-Src phosphorylation, HIF-1alpha protein expression, and PAI-1 gene expression. Catalase, a scavenger of H2O2, inhibited the hypoxia-induced ROS generation and PAI-1 gene expression. Src kinase inhibitors PP1 and PP2 inhibited hypoxia-induced HIF-1alpha protein and PAI-1 gene expression. Ablation of mitochondrial respiration by rotenone abolished hypoxia-induced ROS generation, c-Src phosphorylation, HIF-1alpha protein expression, and PAI-1 gene expression. CONCLUSION Induction of HIF-1alpha protein and PAI-1 gene expression in response to hypoxia was regulated by ROS production and c-Src activation in vascular smooth muscle cells. Mitochondria linked the hypoxic signal to c-Src, which in turn led to HIF-1alpha protein and PAI-1 gene expression. These results provide evidence that hypoxia induces the ROS-mediated and c-Src-dependent signaling cascades which are closely associated with angiogenesis and thrombosis in atherosclerotic vasculature.
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Affiliation(s)
- Hiroko Sato
- Department of Medicine and Biological Science, Gunma University Graduate School of Medicine, 3-39-15 Showa-machi, Maebashi, Gunma 371-8511, Japan
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Nakahara T, Utsugi T, Ohyama Y, Tomono S, Sato K, Takagi H, Murakami H, Hasegawa A, Kurabayashi M. Type 2 diabetes mellitus complicated with smoldering myeloma and non-alcoholic steatohepatitis. Intern Med 2005; 44:838-42. [PMID: 16157983 DOI: 10.2169/internalmedicine.44.838] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
We report a 59-year-old woman with type 2 diabetes mellitus (DM) complicated with smoldering myeloma and non-alcoholic steatohepatitis. A diagnosis of smoldering myeloma was made on the basis of elevation of IgA, M-protein (type:IgA-lambda) and histological findings of bone marrow without bone lesion. As to liver dysfunction, anti-HBV, anti-HCV and a series of auto-immune antibody were negative. She had no alcohol drinking habit and histological findings showed pericellular fibrosis without fatty degeneration, suggesting liver cirrhosis due to non-alcoholic steatohepatitis (NASH). To date, there are no reports of cases with DM, NASH and myeloma. Particular attention may be necessary for these complications.
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Affiliation(s)
- Takehiro Nakahara
- Division of Internal Medicine, Gunma University Hospital, Maebashi, Japan
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Sumino H, Ichikawa S, Ohyama Y, Takahashi T, Saito Y, Nakamura T, Kanda T, Kurabayashi M. Effect of transdermal hormone replacement therapy on the monocyte chemoattractant protein-1 concentrations and other vascular inflammatory markers and on endothelial function in postmenopausal women. Am J Cardiol 2005; 96:148-53. [PMID: 15979455 DOI: 10.1016/j.amjcard.2005.02.059] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2004] [Revised: 02/22/2005] [Accepted: 02/22/2005] [Indexed: 11/23/2022]
Abstract
Monocyte chemoattractant protein-1 (MCP-1) is related to the progression of atherosclerosis. However, little is known about the effects of transdermal hormone replacement therapy (HRT) on circulating MCP-1, vascular inflammatory marker concentrations, and endothelial function in postmenopausal women. The effects of transdermal HRT on circulating MCP-1, vascular inflammatory marker concentrations, and endothelium-dependent vasodilation were investigated in postmenopausal women. Thirty-three women received transdermal HRT (continuous 17-beta estradiol patch 36 microg/day plus cyclic oral medroxyprogesterone acetate 2.5 mg/day for 12 days/month) for 12 months, and 27 control patients did not. Brachial artery flow-mediated vasodilation (FMD), assessed by ultrasound, and circulating MCP-1 and vascular inflammatory marker (C-reactive protein, intercellular adhesion molecule-1 [ICAM-1], vascular cell adhesion molecule-1 [VCAM-1], and E-selectin) concentrations were measured before and after 12 months of treatment. In the HRT group, MCP-1 concentrations decreased significantly (p <0.001), and ICAM-1, VCAM-1, and E-selectin concentrations decreased significantly (p <0.01 for all), but C-reactive protein concentrations did not change. MCP-1 and other marker concentrations did not change in the control group. FMD increased significantly in the HRT group (p <0.001) but did not change in the control group. Nitroglycerin-induced vasodilation did not change in either group. In conclusion, transdermal HRT decreased MCP-1 and cell adhesion molecule concentrations and improved endothelial function in postmenopausal women. Transdermal HRT may exert an antiatherosclerotic effect by improving MCP-1 and cell adhesion molecule expression and endothelial function.
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Affiliation(s)
- Hiroyuki Sumino
- Department of Medicine and Biological Science, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan.
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