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Ito T, Hisa T, Ito Y, Kudo A, Yamada T, Osera S, Tomori A, Fukushima H, Aoyagi D, Shiozawa S. Intraductal papillary neoplasm of the bile duct with metachronous development in the downstream bile duct after radical resection. Clin J Gastroenterol 2024; 17:155-163. [PMID: 37837506 DOI: 10.1007/s12328-023-01867-x] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Accepted: 09/17/2023] [Indexed: 10/16/2023]
Abstract
We report a case of intraductal papillary neoplasms of the bile duct (IPNB) that metachronously developed twice in the downstream bile duct after radical resection. The first lesion was located in the left intrahepatic bile duct, the second lesion in the perihilar bile duct, and the third lesion in the distal bile duct. All lesions were IPNBs with associated invasive carcinoma (pancreatobiliary type). The depth of invasion was to the Glisson's capsule in the first lesion, to the subserosa in the second lesion, and to the fibromuscular layer in the third lesion, without lympho-vascular/perineural invasion and lymph-node metastasis. These were resected radically and had no biliary intraepithelial neoplasia and hyperplasia in the surrounding mucosa. In immunohistochemical examination, each lesion showed a different pattern. Although the downstream occurrence suggests intrabiliary dissemination, the mechanism of these metachronous developments may be multicentric. A literature review revealed that most metachronous cholangiocarcinomas have a grossly papillary appearance and tend to arise downstream. Our findings suggest that IPNB may develop metachronously in the residual bile duct after radical surgery, which may assist in early detection.
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Affiliation(s)
- Taito Ito
- Department of Gastroenterology, Saku Central Hospital Advanced Care Center, 3400-28 Nakagomi, Nagano, 385-0051, Japan
| | - Takeshi Hisa
- Department of Gastroenterology, Saku Central Hospital Advanced Care Center, 3400-28 Nakagomi, Nagano, 385-0051, Japan.
| | - Yui Ito
- Department of Gastroenterology, Saku Central Hospital Advanced Care Center, 3400-28 Nakagomi, Nagano, 385-0051, Japan
| | - Akiharu Kudo
- Department of Gastroenterology, Saku Central Hospital Advanced Care Center, 3400-28 Nakagomi, Nagano, 385-0051, Japan
| | - Takahiro Yamada
- Department of Gastroenterology, Saku Central Hospital Advanced Care Center, 3400-28 Nakagomi, Nagano, 385-0051, Japan
| | - Shozo Osera
- Department of Gastroenterology, Saku Central Hospital Advanced Care Center, 3400-28 Nakagomi, Nagano, 385-0051, Japan
| | - Akihisa Tomori
- Department of Gastroenterology, Saku Central Hospital Advanced Care Center, 3400-28 Nakagomi, Nagano, 385-0051, Japan
| | - Hideki Fukushima
- Department of Gastroenterology, Saku Central Hospital Advanced Care Center, 3400-28 Nakagomi, Nagano, 385-0051, Japan
| | - Daiju Aoyagi
- Department of Clinical Pathology, Saku Central Hospital Advanced Care Center, Nagano, Japan
| | - Satoshi Shiozawa
- Department of Clinical Pathology, Saku Central Hospital Advanced Care Center, Nagano, Japan
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2
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Yorimitsu N, Takahashi A, Shiozawa S, Shinozaki S, Lefor AK, Yamamoto H, Oyama T. Type B2 vessels and infiltrative growth patterns b and c are associated with lymphatic invasion in pT1a-lamina propria mucosa esophageal squamous cell carcinoma. Esophagus 2023; 20:732-739. [PMID: 37389727 DOI: 10.1007/s10388-023-01016-w] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 06/03/2023] [Indexed: 07/01/2023]
Abstract
BACKGROUND Tumor growth pattern correlates with outcomes in patients with esophageal squamous cell carcinoma (ESCC), however, the clinical significance of the tumor growth pattern in pT1a-lamina propria mucosa (LPM) type of ESCC was unclear. This study was conducted to clarify clinicopathological features of tumor growth patterns in pT1a-LPM type ESCC and the relationship between tumor growth patterns and magnifying endoscopic findings. METHODS Eighty-seven lesions diagnosed as pT1a-LPM ESCC were included. Clinicopathological findings including tumor growth pattern and narrow band imaging with magnifying endoscopy (NBI-ME) in the LPM area were investigated. RESULTS Eighty-seven lesions were classified as infiltrative growth pattern-a (INF-a): expansive growth (n = 81), INF-b: intermediate growth (n = 4) and INF-c: infiltrative growth pattern (n = 2). Lymphatic invasion was shown in one INF-b and one INF-c lesion. NBI-ME and histopathological images were matched for 30 lesions. The microvascular pattern was classified into types B1 (n = 23) and B2 (n = 7) using the JES classification. All 23 type B1 lesions were classified as INF-a without lymphatic invasion. Type B2 lesions were classified as INF-a (n = 2), INF-b (n = 4) and INF-c (n = 1), and lymphatic invasion was present in two lesions (INF-b and INF-c). The rate of lymphatic invasion was significantly higher in type B2 than type B1 (p = 0.048). CONCLUSIONS The tumor growth pattern of pT1a-LPM ESCC was mostly INF-a in type B1 patterns. Type B2 patterns are rarely present in pT1a-LPM ESCC, however lymphatic invasion with INF-b or INF-c was frequently observed. Careful observation before endoscopic resection with NBI-ME is important to identify B2 patterns to predict histopathology.
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Affiliation(s)
- Nobukazu Yorimitsu
- Department of Endoscopy, Saku Central Hospital Advanced Care Center, 3400-28 Nakagomi, Saku, Nagano, 3850051, Japan
- Department of Medicine, Division of Gastroenterology, Jichi Medical University, Shimotsuke, Tochigi, Japan
- Department of Gastroenterology, Tokyo Metropolitan Cancer Detection Center, Fuchu, Tokyo, Japan
| | - Akiko Takahashi
- Department of Endoscopy, Saku Central Hospital Advanced Care Center, 3400-28 Nakagomi, Saku, Nagano, 3850051, Japan
| | - Satoshi Shiozawa
- Department of Pathology, Saku Central Hospital Advanced Care Center, Saku, Nagano, Japan
| | - Satoshi Shinozaki
- Department of Medicine, Division of Gastroenterology, Jichi Medical University, Shimotsuke, Tochigi, Japan
- Shinozaki Medical Clinic, Utsunomiya, Tochigi, Japan
| | - Alan Kawarai Lefor
- Department of Surgery, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - Hironori Yamamoto
- Department of Medicine, Division of Gastroenterology, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - Tsuneo Oyama
- Department of Endoscopy, Saku Central Hospital Advanced Care Center, 3400-28 Nakagomi, Saku, Nagano, 3850051, Japan.
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3
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Osako T, Kurisaki-Arakawa A, Dobashi A, Togashi Y, Baba S, Shiozawa S, Ishigame H, Ishige H, Ohno S, Ishikawa Y, Takeuchi K. Distinct Clinicopathologic Features and Possible Pathogenesis of Localized ALK-positive Histiocytosis of the Breast. Am J Surg Pathol 2022; 46:344-352. [PMID: 34482333 DOI: 10.1097/pas.0000000000001794] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Anaplastic lymphoma kinase (ALK)-positive histiocytosis is a rare emerging entity characterized by systemic or localized proliferation of histiocytes harboring ALK rearrangements. Breasts are reportedly affected by ALK-positive histiocytosis. Here, we evaluated 2 localized cases of breast ALK-positive histiocytosis through a comprehensive clinicopathologic, molecular, and genomic analysis to further delineate this entity and better understand its pathogenesis. The cases involved 2 undiagnosed ALK-positive spindle-cell breast lesions. Both cases were Asian women aged 30s to 40s who underwent excisions for asymptomatic breast masses. Macroscopically, both lesions were well-circumscribed, solid masses. Microscopically, both lesions were predominantly composed of fascicles with uniform, bland spindle cells, admixed with epithelioid histiocyte-like cells and lymphoid aggregates. Immunohistochemically, the spindle and epithelioid cells coexpressed ALK and histiocytic markers (eg, CD68, CD163). Genetically, both lesions harbored KIF5B-ALK, confirmed by fluorescence in situ hybridization and polymerase chain reaction-direct sequencing analyses. Combining these results, both cases were successfully diagnosed as ALK-positive histiocytosis. Furthermore, no common or previously annotated somatic alterations were identified by whole-exome sequencing. One case harbored clonal immunoglobulin gene rearrangements according to the polymerase chain reaction-based BIOMED-2 protocol. Therefore, ALK-positive histiocytosis can be accurately diagnosed through a combination of morphologic, immunohistochemical, and molecular analyses. In this entity, breast cases may have distinct clinicopathologic features: Asian women aged 30s to 40s, asymptomatic masses, and predominant spindled morphology. For pathogenesis, ALK rearrangements could be the driver alteration, and a subset of ALK-positive histiocytosis may harbor a lymphoid lineage. These findings can be utilized to improve the diagnosis of ALK-positive histiocytosis and better understand its pathogenesis.
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Affiliation(s)
- Tomo Osako
- Division of Pathology
- Department of Pathology
| | | | - Akito Dobashi
- Division of Pathology
- Pathology Project for Molecular Targets, Cancer Institute
| | - Yuki Togashi
- Division of Pathology
- Pathology Project for Molecular Targets, Cancer Institute
| | - Satoko Baba
- Division of Pathology
- Pathology Project for Molecular Targets, Cancer Institute
- Department of Pathology
| | | | - Hiroki Ishigame
- Department of Pathology, Saku Central Hospital, Saku, Nagano Prefecture, Japan
| | | | - Shinji Ohno
- Breast Oncology Center, Cancer Institute Hospital, Japanese Foundation for Cancer Research
| | - Yuichi Ishikawa
- Division of Pathology
- Department of Pathology, Mita Hospital, International University of Health and Welfare, Tokyo
| | - Kengo Takeuchi
- Division of Pathology
- Pathology Project for Molecular Targets, Cancer Institute
- Department of Pathology
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4
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Osera S, Tomori A, Arakawa A, Shiozawa S, Hisa T. An unusual reversible color change in a gastric lesion during real-time endoscopy. Clin Case Rep 2020; 8:3636-3637. [PMID: 33364014 PMCID: PMC7752320 DOI: 10.1002/ccr3.3436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 08/24/2020] [Accepted: 10/06/2020] [Indexed: 11/11/2022] Open
Abstract
During endoscopy, a light purple flat lesion suddenly appeared at the antrum and the lesion disappeared subsequently. This is an unusual reversible color change that is associated with blood flow, and that must be differentiated from neoplasia.
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Affiliation(s)
- Shozo Osera
- Department of GastroenterologySaku Central Hospital Advanced Care CenterNaganoJapan
| | - Akihisa Tomori
- Department of GastroenterologySaku Central Hospital Advanced Care CenterNaganoJapan
| | - Aiko Arakawa
- Department of PathologySaku Central Hospital Advanced Care CenterNaganoJapan
| | - Satoshi Shiozawa
- Department of PathologySaku Central Hospital Advanced Care CenterNaganoJapan
| | - Takeshi Hisa
- Department of GastroenterologySaku Central Hospital Advanced Care CenterNaganoJapan
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5
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Osera S, Shinohara T, Tomori A, Momoi T, Fukushima H, Hisa T, Shiozawa S. Successful endoscopic resection using a bipolar snare for an adenoma overlying a transverse colonic lipoma. Endoscopy 2020; 52:E372-E373. [PMID: 32219791 DOI: 10.1055/a-1134-4567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Affiliation(s)
- Shozo Osera
- Department of Gastroenterology, Saku Central Hospital Advanced Care Center, Nagano, Japan
| | - Tomoaki Shinohara
- Department of Gastroenterology, Saku Central Hospital Advanced Care Center, Nagano, Japan
| | - Akihisa Tomori
- Department of Gastroenterology, Saku Central Hospital Advanced Care Center, Nagano, Japan
| | - Tamaki Momoi
- Department of Gastroenterology, Saku Central Hospital Advanced Care Center, Nagano, Japan
| | - Hideki Fukushima
- Department of Gastroenterology, Saku Central Hospital Advanced Care Center, Nagano, Japan
| | - Takeshi Hisa
- Department of Gastroenterology, Saku Central Hospital Advanced Care Center, Nagano, Japan
| | - Satoshi Shiozawa
- Department of Pathology, Saku Central Hospital Advanced Care Center, Nagano, Japan
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6
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Endoh H, Ichikawa A, Yamamoto R, Shiozawa S, Nishizawa N, Satoh Y, Oriuchi N. Prognostic impact of preoperative FDG-PET positive lymph nodes in lung cancer. Int J Clin Oncol 2020; 26:87-94. [PMID: 32951076 DOI: 10.1007/s10147-020-01783-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 09/05/2020] [Indexed: 12/25/2022]
Abstract
BACKGROUND 2-[18F] Fluoro-D-deoxyglucose positron emission tomography (FDG-PET) is an appropriate diagnostic procedure for staging lung cancer. However, accurate evaluation of lymph node (LN) metastases by PET is controversial owing to false-positive/-negative FDG uptake results. The prognostic significance of both false-negative and false-positive LNs on FDG-PET remains to be determined. METHODS A total of 235 patients with lung cancer were retrospectively analyzed. Maximum standardized uptake values (SUVmax) of the lymph nodes were compared with pathological LN metastases to correlate PET findings with clinicopathological variables and patients' outcomes. RESULTS When SUVmax ≥ 4 was defined as PET-positive for LN metastasis, sensitivity, specificity, and accuracy were 46.0%, 79.5%, and 72.3%, respectively. False-negative cases and pathological n0 cases were significantly younger, had primary tumors that were smaller or lower SUVmax, and adenocarcinomas compared with false-positive and pathological n+ cases. The difference in survival time between patients with abnormal FDG uptake in the LN and those without was larger than that between pathological LN metastases and no pathological metastases in patients with adenocarcinoma. Multivariate analysis by the Cox proportional hazard model identified smoker, EGFR/ALK negative and LN positive on PET as significant adverse prognostic factors, rather than pathological n-stage. CONCLUSIONS Abnormal FDG uptake in the LN is an important prognostic factor. Increased glucose metabolism on FDG-PET appears to be a more efficient postoperative prognostic marker than pathological n-stage in patients with lung cancer.
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Affiliation(s)
- Hideki Endoh
- Department of Thoracic Surgery, Saku Central Hospital Advanced Care Center, 3400-28 Nakagomi, Saku, Nagano, 385-0051, Japan.
| | - Akihiro Ichikawa
- High Functional Diagnosis Center, Saku Central Hospital Advanced Care Center, 3400-28 Nakagomi, Saku, Nagano, 385-0051, Japan
| | - Ryohei Yamamoto
- Department of Thoracic Surgery, Saku Central Hospital Advanced Care Center, 3400-28 Nakagomi, Saku, Nagano, 385-0051, Japan
| | - Satoshi Shiozawa
- Department of Pathological Diagnostics, Saku Central Hospital Advanced Care Center, 3400-28 Nakagomi, Saku, Nagano, 385-0051, Japan
| | - Nobuhiro Nishizawa
- Department of Thoracic Surgery, Saku Central Hospital Advanced Care Center, 3400-28 Nakagomi, Saku, Nagano, 385-0051, Japan
| | - Yukitoshi Satoh
- Department of Thoracic Surgery, Kitasato University Hospital, 1-15-1 Kitasato, Minami, Sagamihara, Kanagawa, 252-0375, Japan
| | - Noboru Oriuchi
- Advanced Clinical Research Center, Fukushima Medical University, 1 Hikarigaoka, Fukushima, 960-1295, Japan.,Department of Nuclear Medicine, Fukushima Medical University, 1 Hikarigaoka, Fukushima, 960-1295, Japan
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7
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Endoh H, Yamamoto R, Ichikawa A, Shiozawa S, Nishizawa N, Satoh Y, Oriuchi N. Clinicopathologic Significance of False-Positive Lymph Node Status on FDG-PET in Lung Cancer. Clin Lung Cancer 2020; 22:218-224. [PMID: 32654926 DOI: 10.1016/j.cllc.2020.05.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 05/05/2020] [Accepted: 05/05/2020] [Indexed: 12/25/2022]
Abstract
INTRODUCTION 2-[18F] Fluoro-d-deoxyglucose (FDG) positron emission tomography (PET) is a relevant diagnostic procedure for staging lung cancer. However, accurate evaluation of lymph node metastases by PET is controversial because of false-positive FDG uptake. PATIENTS AND METHODS A total of 245 patients with lung cancer were retrospectively analyzed. Standardized maximum uptake values (SUVmax) of the primary tumor and lymph nodes were compared to pathologic lymph node metastases to correlate PET findings with clinicopathologic variables and patient outcomes. RESULTS The SUVmax values of metastatic lymph nodes were significantly higher than those of lymph nodes without metastases (P = .0036). When SUVmax ≥ 4 was defined as PET positive for metastasis, the sensitivity, specificity, and accuracy were 48.1%, 79.8%, and 73.1%, respectively. Multivariate logistic regression analysis showed that age > 75 years, bilateral hilar FDG uptake, and no lymph node swelling were significant factors related to false-positive lymph node metastases. Smoking status, FDG uptake in the primary tumor, and concurrent lung diseases were not significant factors. CONCLUSION Metastatic lymph nodes show higher FDG uptake than false-positive lymph nodes, and older patient age, bilateral hilar FDG uptake, and no swollen nodes are associated with no metastases. Patients with lymph node metastases have worse survival than those with false-positive FDG-PET findings. However, abnormal FDG uptake in the lymph node is an important prognostic factor.
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Affiliation(s)
- Hideki Endoh
- Department of Thoracic Surgery, Saku Central Hospital Advanced Care Center, Saku, Japan.
| | - Ryohei Yamamoto
- Department of Thoracic Surgery, Saku Central Hospital Advanced Care Center, Saku, Japan
| | - Akihiro Ichikawa
- High Functional Diagnosis Center, Saku Central Hospital Advanced Care Center, Saku, Japan
| | - Satoshi Shiozawa
- Department of Pathological Diagnostics, Saku Central Hospital Advanced Care Center, Saku, Japan
| | - Nobuhiro Nishizawa
- Department of Thoracic Surgery, Saku Central Hospital Advanced Care Center, Saku, Japan
| | - Yukitoshi Satoh
- Department of Thoracic Surgery, Kitasato University Hospital, Sagamihara, Japan
| | - Noboru Oriuchi
- Advanced Clinical Research Center, Fukushima Medical University, Fukushima, Japan; Department of Nuclear Medicine, Fukushima Medical University, Fukushima, Japan
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8
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Yorimitsu N, Oyama T, Takahashi A, Takehana T, Shiozawa S. Laparoscopy and endoscopy cooperative surgery is a safe and effective novel treatment for duodenal neuroendocrine tumor G1. Endoscopy 2020; 52:E68-E70. [PMID: 31529442 DOI: 10.1055/a-0999-5172] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Affiliation(s)
- Nobukazu Yorimitsu
- Department of Gastroenterology, Tokyo Metropolitan Cancer Detection Center, Tokyo, Japan.,Department of Endoscopy, Saku Central Hospital Advanced Care Center, Saku, Japan
| | - Tsuneo Oyama
- Department of Endoscopy, Saku Central Hospital Advanced Care Center, Saku, Japan
| | - Akiko Takahashi
- Department of Endoscopy, Saku Central Hospital Advanced Care Center, Saku, Japan
| | - Takuo Takehana
- Department of Surgery, Saku Central Hospital Advanced Care Center, Saku, Japan
| | - Satoshi Shiozawa
- Department of Pathology, Saku Central Hospital Advanced Care Center, Saku, Japan
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9
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Ichimata S, Aoyagi D, Takehana T, Uehara T, Shiozawa S. A case of large cell neuroendocrine carcinoma exhibiting rhabdoid features in the esophagogastric junction. Pathol Int 2019; 69:481-487. [DOI: 10.1111/pin.12807] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 04/10/2019] [Accepted: 04/12/2019] [Indexed: 12/27/2022]
Affiliation(s)
- Shojiro Ichimata
- Department of Laboratory MedicineShinshu University Hospital Matsumoto Japan
- Department of PathologySaku Central Hospital Advanced Care Center Saku Japan
| | - Daiju Aoyagi
- Department of PathologySaku Central Hospital Advanced Care Center Saku Japan
| | - Takuo Takehana
- Department of Gastroenterological SurgerySaku Central Hospital Advanced Care Center Saku Japan
| | - Takeshi Uehara
- Department of Laboratory MedicineShinshu University Hospital Matsumoto Japan
| | - Satoshi Shiozawa
- Department of PathologySaku Central Hospital Advanced Care Center Saku Japan
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10
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Ichimata S, Aoyagi D, Yoshinaga T, Katoh N, Kametani F, Yazaki M, Uehara T, Shiozawa S. A case of spheroid‐type localized lactoferrin amyloidosis in the bronchus. Pathol Int 2019; 69:235-240. [DOI: 10.1111/pin.12774] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2018] [Accepted: 01/10/2019] [Indexed: 11/26/2022]
Affiliation(s)
- Shojiro Ichimata
- Department of Laboratory MedicineShinshu University Hospital Matsumoto Japan
- Department of PathologySaku Central Hospital Advanced Care Center Saku Japan
| | - Daiju Aoyagi
- Department of PathologySaku Central Hospital Advanced Care Center Saku Japan
| | - Tsuneaki Yoshinaga
- Department of Neurology and RheumatologyShinshu University School of Medicine Matsumoto Japan
| | - Nagaaki Katoh
- Department of Neurology and RheumatologyShinshu University School of Medicine Matsumoto Japan
| | - Fuyuki Kametani
- Department of Dementia and Higher Brain FunctionTokyo Metropolitan Institute of Medical Science Tokyo Japan
| | - Masahide Yazaki
- Institute for Biomedical SciencesShinshu University Matsumoto Japan
| | - Takeshi Uehara
- Department of Laboratory MedicineShinshu University Hospital Matsumoto Japan
| | - Satoshi Shiozawa
- Department of PathologySaku Central Hospital Advanced Care Center Saku Japan
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11
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Hisasue S, Takeuchi H, Ota S, Natsuyama T, Shiozawa S, Matsumoto S, Mitsui Y. 423 The impact of preoperative daily PDE5 inhibitors on the early recovery of erectile function following robot-assisted radical prostatectomy. J Sex Med 2018. [DOI: 10.1016/j.jsxm.2018.04.329] [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: 11/16/2022]
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12
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Kinugawa Y, Uehara T, Matsuda K, Kobayashi Y, Nakajima T, Hamano H, Kawa S, Higuchi K, Hosaka N, Shiozawa S, Ishigame H, Nakamura T, Maruyama Y, Nakazawa K, Nakaguro M, Sano K, Ota H. Promoter hypomethylation of SKI in autoimmune pancreatitis. Pathol Res Pract 2018. [PMID: 29534839 DOI: 10.1016/j.prp.2018.03.005] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The relationship between methylation abnormality and autoimmune pancreatitis (AIP)-a representative IgG4-related disease-has not yet been elucidated. We identified SKI might have a significant methylation abnormality in AIP through methylation array analysis using the Illumina Infinium Human Methylation 450K BeadChip array, and investigated the relationship of SKI with AIP clinicopathological features. The methylation rate of SKI was assessed by quantitative SYBR green methylation-specific PCR, and the degree of SKI expression in tissue specimens was assessed by immunohistochemistry in 10 AIP cases, 14 cases of obstructive pancreatitis area in pancreatic ductal adenocarcinoma (PDA) without a history of AIP, and 9 normal pancreas (NP) cases. The SKI methylation ratio was significantly lower in AIP than in PDA and NP. Additionally, the immunohistochemical staining-index (SI) score for SKI was significantly higher in AIP than NP, although there was no significant difference between AIP and PDA. There was a strong negative correlation between SI score and SKI methylation ratio, and between the serum concentrations of IgG4 and the SKI methylation ratio. There was a moderate positive correlation between the serum concentrations of IgG4 and SI. SKI is thought to be an oncogene indicating that SKI hypomethylation and carcinogenesis might be linked to AIP. Furthermore, the correlation between serum concentrations of IgG4 and SKI methylation levels suggest SKI might be involved in the pathogenesis of AIP. However, the role of SKI has not been clearly elucidated. Further studies are needed to understand further the function of SKI.
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Affiliation(s)
- Yasuhiro Kinugawa
- Department of Laboratory Medicine, Shinshu University School of Medicine, Matsumoto, Japan
| | - Takeshi Uehara
- Department of Laboratory Medicine, Shinshu University School of Medicine, Matsumoto, Japan.
| | - Kazuyuki Matsuda
- Department of Laboratory Medicine, Shinshu University School of Medicine, Matsumoto, Japan
| | - Yukihiro Kobayashi
- Department of Laboratory Medicine, Shinshu University School of Medicine, Matsumoto, Japan
| | - Tomoyuki Nakajima
- Department of Laboratory Medicine, Shinshu University School of Medicine, Matsumoto, Japan
| | - Hideaki Hamano
- Department of Gastroenterology, Shinshu University School of Medicine, Matsumoto, Japan
| | - Shigeyuki Kawa
- Internal Medicine, Matsumoto Dental University, Shiojiri, Japan
| | - Kayoko Higuchi
- Department of Pathology, Aizawa Hospital, Matsumoto, Japan
| | - Noriko Hosaka
- Department of Pathology, Nagano Municipal Hospital, Nagano, Japan
| | | | | | | | | | - Koh Nakazawa
- Department of Clinical Laboratory, National Hospital Organization, Matsumoto Medical Center, Matsumoto Hospital, Matsumoto, Japan
| | - Masato Nakaguro
- Department of Pathology and Laboratory Medicine, Nagoya University Hospital, Nagoya, Japan
| | - Kenji Sano
- Department of Pathology, Iida Municipal Hospital, Iida, Japan
| | - Hiroyoshi Ota
- Department of Laboratory Medicine, Shinshu University School of Medicine, Matsumoto, Japan; Department of Biomedical Laboratory Medicine, Shinshu University School of Medicine, Matsumoto, Japan
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13
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Ichimata S, Aoyagi D, Kobayashi M, Sugihara T, Nishio A, Maruyama M, Shiozawa S. Early-stage idiopathic mesenteric phlebosclerosis incidentally combined with adenocarcinoma of the ascending colon: A report of two cases. Pathol Int 2017; 68:139-141. [PMID: 29280316 DOI: 10.1111/pin.12614] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Accepted: 11/04/2017] [Indexed: 12/24/2022]
Affiliation(s)
- Shojiro Ichimata
- Department of Pathology, Shinshu University School of Medicine, Matsumoto, Japan.,Department of Pathology, Saku Central Hospital Advanced Care Center, Saku, Japan
| | - Daiju Aoyagi
- Department of Pathology, Saku Central Hospital Advanced Care Center, Saku, Japan
| | - Mikiko Kobayashi
- Department of Pathology, Shinshu University School of Medicine, Matsumoto, Japan.,Department of Pathology, Nagano Red Cross Hospital, Nagano, Japan
| | - Takehiko Sugihara
- Department of Digestive Surgery, Saku Central Hospital Advanced Care Center, Saku, Japan
| | - Akihito Nishio
- Department of Gastroenterological Surgery, Nagano Red Cross Hospital, Nagano, Japan
| | - Masafumi Maruyama
- Department of Gastroenterology, Nagano Red Cross Hospital, Nagano, Japan
| | - Satoshi Shiozawa
- Department of Pathology, Saku Central Hospital Advanced Care Center, Saku, Japan
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14
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Abstract
A 50-year-old man had undergone chemotherapy and radiotherapy for malignant lymphoma 1 year earlier. Follow-up computed tomography revealed a gallbladder polyp. Transabdominal ultrasound demonstrated a 20-mm hypoechoic sessile polyp with basal waist in the gallbladder fundus; the surface was covered with a hyperechoic layer of non-uniform thickness. On contrast-enhanced computed tomography, the polyp showed an early uniform and sustained staining pattern. Magnetic resonance imaging revealed that the polyp had low and slightly high signal intensities on T1- and T2-weighted imaging, respectively. Gallbladder bed resection was performed with the diagnosis of special tumor. Histologically, the polyp comprised a proliferation of myofibroblast-like spindle cells with inflammatory cell infiltration, without muscularis propria or vascular invasion. Most of the polyp surface was covered with necrotic exudate, and part of the normal epithelium remained. Consequently, a diagnosis of inflammatory myofibroblastic tumor was made. The sessile shape with basal waist, epithelium shedding, and surface necrotic exudative matter may represent intraluminal expansive growth such as a subepithelial tumor. A surface with a hyperechoic layer of non-uniform thickness on gallbladder polyp can help in the diagnosis of a tumor with expansive growth directly under the epithelium with stretching/rupture of the epithelium.
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Affiliation(s)
- Takahiro Yamada
- Department of Gastroenterology, Saku Central Hospital Advanced Care Center, 3400-28 Nakagomi, Saku, Nagano, 385-0051, Japan.
| | - Takeshi Hisa
- Department of Gastroenterology, Saku Central Hospital Advanced Care Center, 3400-28 Nakagomi, Saku, Nagano, 385-0051, Japan
| | - Satoshi Shiozawa
- Clinical Pathology, Saku Central Hospital Advanced Care Center, Nagano, Japan
| | - Akiharu Kudo
- Department of Gastroenterology, Saku Central Hospital Advanced Care Center, 3400-28 Nakagomi, Saku, Nagano, 385-0051, Japan
| | - Ryutaro Furukawa
- Department of Gastroenterology, Saku Central Hospital Advanced Care Center, 3400-28 Nakagomi, Saku, Nagano, 385-0051, Japan
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Furukawa R, Oyama T, Takahashi A, Yorimitsu N, Shimoda T, Ota H, Shiozawa S. A case of gastric-type adenoma with chief cell and parietal cell differentiation surrounded by complete intestinal metaplasia. Nihon Shokakibyo Gakkai Zasshi 2017; 114:450-455. [PMID: 28260713 DOI: 10.11405/nisshoshi.114.450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
A man in his 70s received Helicobacter pylori eradication therapy after endoscopic submucosal dissection (ESD) of the stomach. A small, yellowish, protuberant lesion was later observed on the anterior wall of the lower body of the stomach on surveillance esophagogastroduodenoscopy. Narrow band imaging-magnified endoscopy showed an irregular pit and net-like vascular pattern, with the background mucosa having a light blue crest pattern. A biopsy was performed, which led to a diagnosis of adenoma with a gastric phenotype, so repeat ESD was performed. The freshly resected specimen showed a small, protuberant, flat lesion with a clear margin, and hematoxylin and eosin staining showed mild architectural and nuclear atypia. The shape of the atypical gland was similar to that of a fundic gland. MUC5AC, MUC6, pepsinogen A, and H+/K+ ATPase expressions were positive, and CD10 expression was negative, indicating that this tumor could not only differentiate to mucous neck cells but also to chief cells, parietal cells and foveolar epithelium. Therefore, this 4-mm tumor was diagnosed as a type 0-IIa tubular adenoma with fundic gland differentiation. The background mucosa showed complete intestinal metaplasia. Traditionally, gastric-type adenoma has been defined as the pyloric gland-type, but our case had a fundic gland phenotype. Therefore, a new fundic-gland adenoma subtype should be considered in this case.
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Affiliation(s)
- Ryutaro Furukawa
- Department of Endoscopy, Saku Central Hospital Advanced Care Center
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Yoshida T, Yamashita K, Watanabe M, Koshizuka Y, Kuraya D, Ogura M, Asahi Y, Ono H, Emoto S, Mizukami T, Kobayashi N, Shibasaki S, Tomaru U, Kamachi H, Matsushita M, Shiozawa S, Hirono S, Todo S. The Impact of c-Fos/Activator Protein-1 Inhibition on Allogeneic Pancreatic Islet Transplantation. Am J Transplant 2015; 15:2565-75. [PMID: 26012352 DOI: 10.1111/ajt.13338] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2014] [Revised: 03/13/2015] [Accepted: 03/31/2015] [Indexed: 02/06/2023]
Abstract
Unpreventable allograft rejection is one of the main problems in pancreatic islet transplantation (PIT). Therefore, it is imperative to develop a more effective immunosuppressive strategy. The blockade of transcription factors has been a central part of T cell-depleting immunosuppressive therapies, as typified by the use of calcineurin inhibitors. The inhibition of activator protein-1 (AP-1) offers a novel strategy for immunosuppression in PIT, although to date, no reports on the effects of AP-1 inhibition are available. In this study, we investigated the immunosuppressive effects of T-5224, a c-Fos/AP-1-selective inhibitor, on murine T cells activated by αCD3+αCD28 mAbs. T-5224 inhibited proliferation, CD25 up-regulation, and the production of IL-2 and interferon-γ. In addition, T-5224 blocked the nuclear translocation of c-Fos/AP-1 in activated murine T cells. In BALB/c (H-2(d) )-to-C57BL/6J (H-2(b) ) mouse PIT, the 2-week administration of T-5224 prolonged survival of 600 islet allografts in a dose-dependent manner. When combined with a 2-week low-dose tacrolimus, the T-5224 treatment markedly prolonged allograft survival to over 300 days, while the efficacy was indeterminate when transplanted islet allograft mass was reduced to 300. We conclude that the c-Fos/AP-1 inhibition by T-5224 is a potentially attractive strategy for allogeneic PIT.
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Affiliation(s)
- T Yoshida
- Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - K Yamashita
- Department of Transplant Surgery, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - M Watanabe
- Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Y Koshizuka
- Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - D Kuraya
- Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - M Ogura
- Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Y Asahi
- Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - H Ono
- Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - S Emoto
- Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - T Mizukami
- Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - N Kobayashi
- Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - S Shibasaki
- Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - U Tomaru
- Department of Pathology, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - H Kamachi
- Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - M Matsushita
- Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - S Shiozawa
- Department of Medicine, Kyushu University Beppu Hospital, Beppu, Japan
| | - S Hirono
- Laboratory of Physical Chemistry for Drug Design, School of Pharmacy, Kitasato University, Tokyo, Japan
| | - S Todo
- Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, Sapporo, Japan
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Shiozawa S, Hirata R, Jeppesen J, Graven-Nielsen T. Impaired anticipatory postural adjustments due to experimental infrapatellar fat pad pain. Eur J Pain 2015; 19:1362-71. [DOI: 10.1002/ejp.667] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/14/2014] [Indexed: 11/06/2022]
Affiliation(s)
- S. Shiozawa
- Laboratory for Musculoskeletal Pain and Motor Control; Center for Sensory-Motor Interaction (SMI); Department of Health Science and Technology; Faculty of Medicine; Aalborg University; Denmark
| | - R.P. Hirata
- Laboratory for Musculoskeletal Pain and Motor Control; Center for Sensory-Motor Interaction (SMI); Department of Health Science and Technology; Faculty of Medicine; Aalborg University; Denmark
| | - J.B. Jeppesen
- Laboratory for Musculoskeletal Pain and Motor Control; Center for Sensory-Motor Interaction (SMI); Department of Health Science and Technology; Faculty of Medicine; Aalborg University; Denmark
| | - T. Graven-Nielsen
- Laboratory for Musculoskeletal Pain and Motor Control; Center for Sensory-Motor Interaction (SMI); Department of Health Science and Technology; Faculty of Medicine; Aalborg University; Denmark
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Murashita K, Matsunari H, Kumon K, Tanaka Y, Shiozawa S, Furuita H, Oku H, Yamamoto T. Characterization and ontogenetic development of digestive enzymes in Pacific bluefin tuna Thunnus orientalis larvae. Fish Physiol Biochem 2014; 40:1741-1755. [PMID: 25055726 DOI: 10.1007/s10695-014-9964-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Accepted: 07/15/2014] [Indexed: 06/03/2023]
Abstract
The major digestive enzymes in Pacific bluefin tuna Thunnus orientalis larvae were characterized, and the physiological characteristics of the enzymes during early ontogeny were clarified using biochemical and molecular approaches. The maximum activity of trypsin (Try), chymotrypsin (Ct) and amylase (Amy) was observed at pH 6-11, 8-11 and 6-9, respectively. Maximum activity of Try, Ct and Amy occurred at 50 °C, that of lipase (Lip) was at 60 °C and that of pepsin (Pep) was at 40-50 °C. These pH and thermal profiles were similar to those for other fish species but differed from those previously reported for adult bluefin tuna. Enzyme activity for all enzymes assayed was found to decrease at high temperatures (Try, Ct, Amy and Pep: 50 °C; Lip: 40 °C), which is similar to findings for other fish species with one marked exception-increased Try activity was observed at 40 °C. Lip activity appeared to be dependent on bile salts under our assay conditions, resulting in a significant increase in activity in the presence of bile salts. Ontogenetic changes in pancreatic digestive enzymes showed similar gene expression patterns to those of other fish species, whereas marked temporal increases in enzyme activities were observed at 10-12 days post hatching (dph), coinciding with previously reported timing of the development of the pyloric caeca in bluefin tuna larvae. However, complete development of digestive function was indicated by the high pep gene expression from 19 dph, which contradicts the profile of Pep activity and previously reported development timing of the gastric gland. These findings contribute to the general knowledge of bluefin tuna larval digestive system development.
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Affiliation(s)
- Koji Murashita
- Aquaculture Systems Division, National Research Institute of Aquaculture, Fisheries Research Agency, 224-1, Hiruda, Tamaki, Mie, 519-0423, Japan,
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Shiozawa K, Yamane T, Murata M, Tanaka C, Yo N, Yoshihara R, Tanaka Y, Tsumiyama K, Shiozawa S. FRI0006 Mmp3 Predicts A Subgroup of Rheumatoid Patients with Structural Remission under Low-Dose Methotrexate (MTX) Monotherapy. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.3071] [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: 11/04/2022]
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Miyazaki Y, Tsumiyama K, Shiozawa S. AB0192 Proof of Concept, Self-Organized Criticality Theory of Autoimmunity: Autoantibody-Inducing CD4 T Cell That Causes SLE Belongs to CD45rb-Cd122-Pd1+ Subset. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.3938] [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: 11/04/2022]
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Shiozawa K, Yamane T, Murata M, Tanaka C, Yo N, Yoshihara R, Tanaka Y, Tsumiyama K, Shiozawa S. AB0394 Long Term Efficacy of Rheumatoid Arthritis (RA) Patients with Adequate Responses to Methotrexate (MTX) on Maintenance of Function and Structure: 3-Year Study Results. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.3957] [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: 11/03/2022]
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Tsumiyama K, Shiozawa S. AB0031 Sec61 is Essentially Required for Antigen Cross-Presentation and Induction of Lupus Kidney Disease: Proof of Concept, Self-Organized Criticality Theory Explaining the Cause of Sle. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.3952] [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: 11/04/2022]
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Kameda H, Kanbe K, Sato E, Ueki Y, Saito K, Nagaoka S, Hidaka T, Atsumi T, Tsukano M, Kasama T, Shiozawa S, Tanaka Y, Yamanaka H, Takeuchi T. SAT0131 Continuation/discontinuation of methotrexate and clinical response to etanercept determine the radiographic progression/repair in patients with rheumatoid arthritis: A subanalysis of 52-week results from the JESMR study:. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2012-eular.3078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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24
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Shiozawa K, Tanaka Y, Yoshihara R, Murata M, Yamane T, Tanaka C, You N, Shiozawa S. AB0176 Mmp-3 as a predictor that identifies a subgroup with potential radiographic progression requiring additional biologics to halt future progression among the rheumatoid arthritis patients succeedingly treated with methotrexate (mtx) alone. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2013-eular.2499] [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: 11/04/2022]
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25
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Shiozawa S, Tsumiyama K, Miyazaki Y, Uto K. AB0216 Novel self-organized criticality theory of autoimmunity explaining the cause of SLE. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.216] [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: 11/03/2022]
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Shiozawa S, Uto K, Tsumiyama K. AB0135 Weak tcr signaling due to repeated immunization with antigen is the key for tcr revision to generate aicd4 t cell: implication to self-organized criticality theory. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.2458] [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: 11/03/2022]
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Yoshida K, Hashiramoto A, Okano T, Yamane T, Shibanuma N, Shiozawa S. TNF-α modulates expression of the circadian clock genePer2in rheumatoid synovial cells. Scand J Rheumatol 2013; 42:276-80. [DOI: 10.3109/03009742.2013.765031] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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28
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Yoshida K, Inoue H, Komai K, Yamane T, Hashiramoto A, Shiozawa K, Shiozawa S. Mixed connective tissue disease is distinct from systemic lupus erythematosus: study of major histocompatibility complex class I polypeptide-related sequence A andHLAgene polymorphisms. ACTA ACUST UNITED AC 2012; 81:44-5. [DOI: 10.1111/tan.12027] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2012] [Revised: 09/20/2012] [Accepted: 10/10/2012] [Indexed: 11/26/2022]
Affiliation(s)
- K. Yoshida
- Department of Biophysics and Medicine; Kobe University Graduate School of Health Sciences and Medicine; Kobe; Japan
| | - H. Inoue
- Department of Biophysics and Medicine; Kobe University Graduate School of Health Sciences and Medicine; Kobe; Japan
| | - K. Komai
- Department of Biophysics and Medicine; Kobe University Graduate School of Health Sciences and Medicine; Kobe; Japan
| | - T. Yamane
- Rheumatic Diseases Center; Konan-Kakogawa Hospital; Kakogawa; Japan
| | - A. Hashiramoto
- Department of Biophysics and Medicine; Kobe University Graduate School of Health Sciences and Medicine; Kobe; Japan
| | - K. Shiozawa
- Rheumatic Diseases Center; Konan-Kakogawa Hospital; Kakogawa; Japan
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Suda A, Kaiya H, Nikaido H, Shiozawa S, Mishiro K, Ando H. Identification and gene expression analyses of ghrelin in the stomach of Pacific bluefin tuna (Thunnus orientalis). Gen Comp Endocrinol 2012; 178:89-97. [PMID: 22569173 DOI: 10.1016/j.ygcen.2012.04.026] [Citation(s) in RCA: 11] [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] [Received: 02/04/2012] [Revised: 04/07/2012] [Accepted: 04/23/2012] [Indexed: 12/11/2022]
Abstract
Full length cDNA and gene encoding ghrelin precursor and mature ghrelin peptide were identified from the stomach of Pacific bluefin tuna, Thunnus orientalis, which has unique metabolic physiology and high commercial value at fishery markets. Quantitative expression analysis was conducted for the gastric ghrelin and pepsinogen 2 genes during the early stage of somatic growth from the underyearling to yearling fish. The full length cDNA of bluefin tuna ghrelin precursor has a length of 470bp and the deduced precursor is composed of 107 amino acids. The ghrelin gene is 1.9kbp in length and has a 4 exon-3 intron structure. The major form of mature ghrelin in the stomach was an octanoylated 20-amino acid peptide with C-terminal amidation, while overall 12 different forms of ghrelin peptides, including short form of 18-amino acid peptide and seven kinds of acyl modifications were identified. The expression profiles of the gastric ghrelin and pepsinogen 2 genes showed no significant changes related to the early growth stages. The present results suggest that digestive physiology has already been functional in this growth stage of the juvenile bluefin tuna and ghrelin may have a role in the sustained digestive and metabolic activities.
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Affiliation(s)
- Atsushi Suda
- Laboratory of Advanced Animal and Marine Bioresources, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
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Hashiramoto A, Murata M, Kawazoe T, Yoshida K, Akiyama C, Shiozawa K, Shiozawa S. Heat shock protein 90 maintains the tumour-like character of rheumatoid synovial cells by stabilizing integrin-linked kinase, extracellular signal-regulated kinase and protein kinase B. Rheumatology (Oxford) 2010; 50:852-61. [DOI: 10.1093/rheumatology/keq385] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
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Abstract
From the results of etiological study of the disease known as akiyami which prevails in the Shida district of Shizuoka province, we conclude that: 1. Akiyami is an infectious disease caused by a leptospira. 2. The leptospira causing akiyami is very difficult to differentiate morphologically from Leptospira icterohœmorrhagiœ and Leptospira hebdomadis. 3. The strains of leptospira isolated from cases of akiyami are of two types. One type, isolated from three of the sixteen cases, is highly virulent for guinea pigs and is serologically distinct from Leptospira icterohœmorrhagiœ and Leptospira hebdomadis; we have called this the A type. The type obtained from the other cases is less virulent for guinea pigs and is serologically identical with Leptospira hebdomadis; we have called this the B type. 4. The field mouse (Microtus montebelli), which harbors Leptospira hebdomadis, has also been found to harbor the A type of akiyami.
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Affiliation(s)
- M Koshina
- Medical Clinic of Tokyo Imperial University, Tokyo, Japan
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Kim D, Shiozawa S, Usui T, Yoshimatsu K, Ogawa K. A phase I clinical trial of combination therapy with gemcitabine and epitope peptides derived from human vascular endothelial growth factor receptor for patients with advanced pancreatic cancer. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.e13138] [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: 11/20/2022] Open
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Abstract
Interferon (IFN)-alpha is the main IFN produced in response to viral infection. Low levels of IFNalpha can be detected in nasal secretions after exposure to viruses in vivo. Radioimmunoassay has shown that endogenous IFNalpha is low in children, reaches a peak in young adults, and gradually declines with aging. Importantly, this endogenous IFNalpha is significantly decreased in patients with Sjögren's syndrome (SS). IFNalpha has been tested as a therapeutic agent in patients with SS. Intramuscular human leucocyte IFNalpha increases saliva production significantly in patients with SS. Improvements have been noted in lacrimal function and in dryness symptoms. Since IFNalpha infrequently induces autoimmune phenomena and high dose IFNalpha treatment sometimes has a serious adverse event profile, treatment focus has shifted to use of low dose orally-administered IFNalpha. In a single-masked controlled trial, 60 patients with SS randomly received natural human IFNalpha 150IU 3 times a day in an oral lozenge formulation or sucralfate as control for 6 months. At study end, 15 (50%) of the 30 IFNalpha-treated patients had saliva production increases at least 100% above baseline. IFNalpha treatment was well tolerated and no patients withdrew. Labial minor salivary gland biopsies indicated significant decreases in lymphocytic infiltration accompanied by a significant increase in intact salivary gland tissue after 6 months of treatment. In another 12-week double-masked, randomised, placebo-controlled trial, stimulated saliva production in patients with SS receiving IFNalpha lozenges 150IU 3 times daily was significantly increased. This dosage was also suggestive of benefit for 5 of 7 subjective measures of oral and ocular comfort. The tolerability profile of these low dose oral IFNalpha lozenges is excellent; no serious adverse events have been recorded. Adverse effects were generally mild and there were no clinically significant changes in laboratory or clinical safety measures. Low oral doses of natural human IFNalpha thus appear to improve secretory function and relieve dryness in patients with SS without causing significant adverse events. Endogenous or orally administered IFNalpha may activate oropharyngeal lymphoid and epithelial cells and induce production of potent soluble factors which could mediate immunological reactivity. It has been suggested that IFNalpha/beta potentiates clonal expansion and survival of CD8 T cells. Stimulating effects have also been demonstrated on natural killer cell activity, which has been shown to be depressed in patients with SS. It is likely that some combination of these immunological effects results in anti-inflammatory activity and ameliorates signs and symptoms of SS.
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Affiliation(s)
- S Shiozawa
- Kobe University School of Medicine, Kobe, Japan
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Hisa T, Ohkubo H, Shiozawa S, Ishigame H, Ueda M, Takamatsu M, Furutake M. Mucinous cystadenoma of the pancreas with huge mural hematoma. Pathol Int 2009; 59:762-5. [DOI: 10.1111/j.1440-1827.2009.02441.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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Hisa T, Ohkubo H, Shiozawa S, Ishigame H, Takamatsu M, Furutake M, Nobukawa B, Suda K. Growth process of small pancreatic carcinoma: A case report with imaging observation for 22 months. World J Gastroenterol 2008; 14:1958-60. [PMID: 18350642 PMCID: PMC2700420 DOI: 10.3748/wjg.14.1958] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
This report describes serial observations of the growth process of a small invasive ductal carcinoma (IDC) of the pancreas from imaging studies. Histopathological studies showed IDC with macroscopic retention cysts proximal to an intraductal papillary-mucinous adenoma with mild atypia of the branch duct type in the pancreatic body, with no relation between the two lesions. IDC was demonstrated as an extremely low-echoic mass resembling a cyst with an unclear margin on the initial endoscopic ultrasonography. We misinterpreted the low-echoic mass as a benign intraductal mucinous-papillary neoplasm (IPMN) based on findings of other imaging studies, and the patient was followed-up. The mass increased from 7 mm to 13 mm in diameter over 22 mo, and remained smaller than 10 mm in diameter for about 420 d. The tumor volume doubling time was 252 d. The Ki67 labeling index was 15.9%, similar to that described in previous reports. Hence, IDC may grow slowly while remaining small.
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Hisa T, Nobukawa B, Suda K, Ohkubo H, Shiozawa S, Ishigame H, Takamatsu M, Furutake M. Intraductal carcinoma with complex fusion of tubular glands without macroscopic mucus in main pancreatic duct: Dilemma in classification. Pathol Int 2007; 57:741-5. [DOI: 10.1111/j.1440-1827.2007.02163.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Shiozawa S, Tanaka M, Ohno K, Nagao Y, Yamada T. Re-evaluation of peroxide value as an indicator of the quality of edible oils. Shokuhin Eiseigaku Zasshi 2007; 48:51-7. [PMID: 17657997 DOI: 10.3358/shokueishi.48.51] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The oxidation of oils has important effects on the quality of oily foods, such as instant noodles. In particular, the generation of aldehydes, which accompanies the oxidation of oils, is one of the first factors to reduce food quality. We examined various indicators of oil quality during temperature-accelerated storage and found that peroxide value (POV) was highly correlated with the total concentration of major odorants. Moreover, the correlation of POV with the total concentration of five unsaturated aldehydes (t-2-heptenal, t-2-octenal, t-2-decenal, t-2-undecenal and t,t-2,4-decadienal) that show strong cytotoxicity was greater than the correlation of POV with the total concentration of major odorants. The maximum allowable concentration of the five aldehydes was calculated based on the 'no observed adverse-effect level' of the aldehyde that showed the highest cytotoxicity, t,t-2,4-decadienal, along with the human daily oil intake. We showed that it is useful to utilize POV as an indicator to control food quality and safety.
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Affiliation(s)
- Satoshi Shiozawa
- Food Safety Research Institute, Nissin Food Products Co., Ltd.: 2247, Noji-cho, Kusatsu, Shiga 525-0055, Japan
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Hisa T, Suda K, Nobukawa B, Ohkubo H, Shiozawa S, Ishigame H, Yamao K, Yatabe Y. Distribution of intraductal lesions in small invasive ductal carcinoma of the pancreas. Pancreatology 2007; 7:341-6. [PMID: 17703080 DOI: 10.1159/000107268] [Citation(s) in RCA: 16] [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] [Received: 04/28/2006] [Accepted: 12/20/2006] [Indexed: 12/11/2022]
Abstract
AIMS To investigate the distribution of intraductal lesions in small invasive ductal carcinoma (IDC) of the pancreas. METHODS In 21 cases with IDCs microscopically < or = 20 mm in diameter, the intraductal lesions around a mass were studied histologically and mapped according to the pancreatic intraepithelial neoplasia (PanIN) classification. RESULTS PanIN-3, PanIN-2, PanIN-1B and PanIN-1A were found in 17, 10, 20 and 21 of 21 cases, respectively, and were divided into lesions in adjacent and distal areas, respectively defined as within and beyond 10 mm from the mass as follows: 100% (17/17), 100% (10/10), 95.0% (19/20) and 90.5% (19/21) in the former, while 23.5% (4/17), 50.0% (5/10), 90.0% (18/20) and 95.2% (20/21) in the latter. PanIN-3 lesions were predominantly found in the area adjacent to the mass. In some cases, significant PanIN-3 appeared to show a consecutive geographic extension around the mass via the main pancreatic duct (MPD). The distance of PanIN-3 spread was within 25 (mean 10.5) mm from the mass edge. PanIN-2 lesions were found in the area adjacent to the mass and discontinuous with the mass or PanIN-3 lesions. PanIN-1B and PanIN-1A tended mainly to exist sporadically throughout the entire pancreas. In the MPD, PanIN-3 was found in 14 (82.4%) of 17 cases and in 36 (32.1%) of 112 lesions, which was most frequent in intraductal lesions. CONCLUSIONS PanIN-3 lesions might be an intraductal extension of the main tumor. The resection margin of 25 mm, at least longer than 11 mm, from the mass edge will be necessary.
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Affiliation(s)
- Takeshi Hisa
- Department of Human Pathology, Juntendo University School of Medicine, Tokyo, Japan.
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Kitagawa A, Miura Y, Saura R, Mitani M, Ishikawa H, Hashiramoto A, Yoshiya S, Shiozawa S, Kurosaka M. Anchorage on fibronectin via VLA-5 (alpha5beta1 integrin) protects rheumatoid synovial cells from Fas-induced apoptosis. Ann Rheum Dis 2005; 65:721-7. [PMID: 16249227 PMCID: PMC1798166 DOI: 10.1136/ard.2005.041707] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BACKGROUND Rheumatoid synovial cells are resistant to apoptosis induction in vivo, whereas, fibroblast-like synovial cells in rheumatoid arthritis (RA-FLS) are vulnerable to Fas-induced apoptosis in vitro. OBJECTIVE To clarify this discrepancy by studying the contribution of the interaction between cellular integrin and matrix fibronectin (Fn), which is significantly increased in the rheumatoid joints, to the induction of apoptosis in RA-FLS. METHODS Integrin and Fas mRNAs were measured by reverse transcription-polymerase chain reaction in RA-FLS. Integrins expressed in rheumatoid synovial tissues were analysed by immunohistochemistry. RA-FLS plated either on Fn or on control poly-L-lysine were incubated with agonistic anti-Fas monoclonal antibodies (mAbs). Apoptosis induction was evaluated using terminal deoxynucleotidyl transferase mediated UTP nick end labelling (TUNEL) and immunoblotting for caspase-3 and poly (ADP-ribose) polymerase in the presence or absence of anti-VLA-5 mAb. RESULTS VLA-5 (alpha5beta1 integrin), a major integrin expressed on RA-FLS, was required for the adhesion of RA-FLS on Fn. RA-FLS plated on Fn were more resistant to Fas-induced apoptosis than those plated on control poly-L-lysine. This protection by Fn was reversed by anti-VLA-5 mAb. CONCLUSION Anchorage of RA-FLS on matrix Fn via VLA-5 protects RA-FLS from Fas-induced apoptosis, and Fn abundantly present in rheumatoid synovium appears to afford RA-FLS resistance against apoptosis induction in vivo.
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Affiliation(s)
- A Kitagawa
- Department of Orthopaedic Surgery, Kobe University School of Medicine, Japan
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Abstract
Bone marrow transplantation (BMT) is an effective therapeutic strategy for leukaemic malignancies and depressed bone marrow following cancer. However, its side effects on kidneys have been reported. Some drugs and irradiation are also suggested to be nephrotoxic. It is well known that haemolytic uraemic syndrome (HUS) after BMT develops as late-onset BMT nephropathy. Cyclosporine A (CsA) is a possible cause. Radiation nephropathy shows changes that are similar to the histology of HUS. These findings suggest that endothelial damage is closely associated with the pathogenesis of post-BMT nephropathy. Recently, some patients have developed glomerulonephritis accompanied by graft-versus-host disease (GVHD) after BMT. In these patients immune deposits are found mainly in subepithelium and mesangium equal to those of secondary membranous glomerulonephritis. A murine experimental model of GVHD manifests similar symptoms and histological changes to those of actual patients and may suggest the pathogenesis of glomerulonephritis.
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Affiliation(s)
- Masako Otani
- Department of Pathology, Shinshu University School of Medicine, Matsumoto, Japan.
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Osawa K, Takami N, Shiozawa K, Hashiramoto A, Shiozawa S. Death receptor 3 (DR3) gene duplication in a chromosome region 1p36.3: gene duplication is more prevalent in rheumatoid arthritis. Genes Immun 2004; 5:439-43. [PMID: 15241467 DOI: 10.1038/sj.gene.6364097] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.4] [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: 11/08/2022]
Abstract
The death receptor 3 (DR3) gene is a member of the apoptosis-inducing Fas gene family. In the current study, fluorescence in situ hybridization (FISH) and Fiber-FISH revealed the existence of a second DR3 gene approximately 200 kb upstream of the original DR3 gene. The existence of the duplicated DR3 gene was confirmed by sequencing the corresponding human artificial chromosome clones as well as with quantitative PCR that measured the ratio of the DR3 gene mutation (Rm), intrinsic to rheumatoid arthritis (RA) patients, by simultaneous amplification of the normal and mutated DR3 sequences. The DR3 gene duplication measured by FISH was found to be more frequent in patients with RA as compared to healthy individuals. We therefore surmise that the human DR3 gene can be duplicated and that this gene duplication is more prevalent in patients with RA.
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Affiliation(s)
- K Osawa
- Department of Rheumatology, Kobe University FHS School of Medicine, Kobe, Japan
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Abstract
To clarify the relationship between macrophages and development of glomerulosclerosis, the authors developed a new experimental nephritis model with macrophages persisting in Thy-1 nephritis. Methyl-cellulose was administered intraperitoneally in addition to the intravenous injection of the anti-Thy-1 antibody to Wistar rats. Foamy macrophages influxed into the lytic mesangium and stayed to form nodular aggregates. Mesangial cells proliferated with the formation of extracellular matrices around these nodular aggregates of macrophages. Immunohistochemical analyses revealed that alpha-smooth muscle actin (alpha-SMA) was expressed in the proliferative area around these nodules of foamy macrophages from day 7. Type I collagen and type IV collagen were also expressed around the foamy macrophages in correspondence with alpha-SMA expression from day 7. The electron microscopic study revealed that collagen fibrils were formed around the transformed mesangial cells. The expression of platelet endothelial cell adhesion molecule-1 (PECAM-1, CD31), a marker of glomerular vasculature endothelial cells, was not found in the area occupied by the foamy macrophages, suggesting the impairment of glomerular reconstruction. Macrophages may participate in the progression of glomerulosclerosis in Thy-1 nephritis by enhancing the production of the extracellular matrix through transformed mesangial cells and preventing reconstruction of the capillary network.
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Affiliation(s)
- Yoko Kaneko
- Second Department of Internal Medicine, Shinshu University School of Medicine, Saku, Japan.
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Mochizuki K, Ueda M, Shiozawa S, Ishigame H, Hasegawa M, Koiwai K, Watanabe T, Kadoya M. [Imaging of gastrointestinal stromal tumor (GIST): relation between CT findings and grade of malignancy]. Nihon Igaku Hoshasen Gakkai Zasshi 2003; 63:210-3. [PMID: 12822445] [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: 03/03/2023]
Abstract
PURPOSE To report the relation between CT findings and the grade of malignancy in gastrointestinal stromal tumor (GIST), especially the uncommitted type of GIST. MATERIALS AND METHODS A total of 14 patients with histologically proven GIST (uncommitted type) underwent CT. Tumors were divided into three grades. HISTOLOGICALLY: Benign (mitotic index [MI] < 2/10 high-power fields [HPF]), borderline (2/10 HPF < or = MI < or = 5/10 HPF), and malignant (5/10 HPF < MI). We evaluated tumor size, cystic component, margin, and early enhancement. RESULTS All benign tumors were smaller than 5 cm, and most malignant tumors reached 5 cm. The size of borderline tumors was between the sizes of benign and malignant tumors. No benign tumors had cystic components, whereas all borderline and malignant tumors except for one case had cystic components. Only two huge malignant tumors had unclear margins. The relation between early enhancement and the grade of malignancy showed no tendency, but all duodenal tumors showed marked early enhancement irrespective of grade. CONCLUSION The grade of malignancy of GIST (uncommitted type) and size, presence of cystic components, and margin were highly correlated. That is, 1) tumors smaller than 5 cm with no cystic components can be diagnosed as benign, whereas 2) tumors that have cystic components are borderline or malignant. 3) Tumors that have cystic components and unclear margin can be diagnosed as actively malignant.
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Shiozawa S, Ichikawa T, Nakazawa K, Ehara T, Shigematsu H. A case of an ABO-incompatible renal transplant with abundant intratubular basement membrane immune deposits. Clin Transplant 2003; 16 Suppl 8:68-71. [PMID: 12464136 DOI: 10.1034/j.1399-0012.16.s8.12.x] [Citation(s) in RCA: 3] [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] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
We present a case of a 30-year-old man who received an ABO-incompatible renal transplant from his mother in 1996 after haemodialysis for 3 years. Although his renal function was stable, a renal biopsy was performed while he was in hospital for treatment of herpes zoster in 1999. Light microscopy provided no evidence of obvious acute or chronic rejection but a double contour pattern was observed in many tubular basement membranes (TBM). Immunofluorescence microscopy revealed deposits of IgG and C3 on the TBM in the absence of glomerular deposition. Massive electron-dense deposits were observed clearly by electron microscopy within TBM, revealing splitting and lamellation. This implies that the deposits resulted from the formation of immune complexes, but not from anti-TBM antibody. Although the role of TBM deposits in tubular injury is controversial, careful observation of patients with such deposits may be required because of their potential ability to induce immune reactions.
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Araki S, Shiozawa S, Washitani I. An experimental device for studying seed responses to naturally fluctuating temperature of surface soil under a constant water table. Funct Ecol 2002. [DOI: 10.1046/j.1365-2435.1998.00210.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Watanabe O, Haga S, Okabe T, Kumazawa K, Shiozawa S, Tsuchiya A, Kajiwara T, Hirotani T, Aiba M. Amputation neuroma of common bile duct with obstructive jaundice. J Gastroenterol Hepatol 2001; 16:945-6. [PMID: 11555116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
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Shiozawa S, Komai K, Konishi Y, Murayama K, Kawasaki H, Murata M, Saura R, Ishikawa H, Yoshihara R, Abe S, Tanaka Y, Siozawa K, Kimura H, Imura S. [Disease genes of rheumatoid arthritis]. Ryumachi 2001; 41:763-72. [PMID: 11577406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
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Shiozawa K, Hino K, Shiozawa S. Alternatively spliced EDA-containing fibronectin in synovial fluid as a predictor of rheumatoid joint destruction. Rheumatology (Oxford) 2001; 40:739-42. [PMID: 11477277 DOI: 10.1093/rheumatology/40.7.739] [Citation(s) in RCA: 26] [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] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVES Fibronectin containing the EDA region (EDA(+)Fn), a molecule important for rheumatoid joint destruction, was measured in relation to the progression of joint destruction in rheumatoid arthritis (RA). METHODS Total Fn and EDA(+)Fn were measured by ELISA, and the concentrations of Fn in plasma and synovial fluid were compared prospectively for 2 yr with the progression of joint destruction in 41 knee joints of 37 patients with RA. The extent of joint destruction was assessed by the Larsen score and joint space narrowing in X-ray films taken before and 2 yr after measurement of EDA(+)Fn. RESULTS The concentration of synovial fluid EDA(+)Fn showed a positive correlation with the progression of joint destruction in RA (r=0.78). While total Fn in synovial fluid also showed a correlation with joint destruction (r=0.54), total Fn and EDA(+)Fn in plasma showed no correlation with joint destruction. The concentration of synovial fluid EDA(+)Fn was significantly higher in patients who underwent joint replacement after the measurement of EDA(+)Fn than in those who did not receive surgery (P<0.029). CONCLUSION Synovial fluid EDA(+)Fn can be a predictor of subsequent joint destruction in RA.
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Affiliation(s)
- K Shiozawa
- Department of Medicine and Rheumatology, Kakogawa Konan Hospital, Japan
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Goto M, Hanyu T, Yoshio T, Matsuno H, Shimizu M, Murata N, Shiozawa S, Matsubara T, Yamana S, Matsuda T. Intra-articular injection of hyaluronate (SI-6601D) improves joint pain and synovial fluid prostaglandin E2 levels in rheumatoid arthritis: a multicenter clinical trial. Clin Exp Rheumatol 2001; 19:377-83. [PMID: 11491492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Abstract
OBJECTIVE The relationship between clinicalfeatures and biochemical parameters of synovialfluid after serial intra-articular injections of sodium hyaluronate (SI-6601D) was investigated. METHODS SI-6601D (sodium hyaluronate with an average molecular weight of 8.4 x 10(5); 25mg/2.5ml/syringe) was injected intra-articularly into the knees of 25 patients with rheumatoid arthritis (RA) every week for 5 consecutive weeks. Clinical and biochemical parameters were monitored before and after injection. Clinicalfindings included pain, as a summation of 3 categories (pain at rest, pain in motion and pain in passive motion, each assessed on a 4-step rating scale), and inflammation, also as a summation of 3 categories (swelling, patellar ballotement and local warmth, each assessed on a 4-step rating scale). Pain on walking of patient was qualitatively assessed by visual analogue scale (VAS). The aspirated volume of synovialfluid (SFV) was recorded and levels of prostaglandin (PG) E2, transforming growth factor beta-1, tumor necrosis factor alpha, interleukin I receptor antagonist, chondroitin 4-sulfate (C4S) and chondroitin 6-sulfate were measured. RESULTS Significant improvement in pain symptoms (p < 0.0001), inflammation (p < 0.0001), VAS pain (p < 0.001) and SFV (p < 0.05) were observed after the 5 injections. Levels of PGE2 (p < 0.05) and C4S (p < 0.05) in the synovialfluid were significantly decreased. DISCUSSION SI-6601D improved local clinical symptoms in RA patients by suppressing PGE2 and, therefore, may be a useful treatment for local inflammation in RA.
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Affiliation(s)
- M Goto
- Division of Rheumatic Diseases, Tokyo Metropolitan Otsuka Hospital, Japan.
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Kitahara M, Ichikawa M, Kinoshita T, Shiozawa S, Shigematsu H, Komiyama A. Prostacyclin inhibits the production of MMP-9 induced by phorbol ester through protein kinase A activation, but does not affect the production of MMP-2 in Human cultured mesangial cells. Kidney Blood Press Res 2001; 24:18-26. [PMID: 11174002 DOI: 10.1159/000054201] [Citation(s) in RCA: 11] [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] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND/AIMS The imbalance between degradation and synthesis of the glomerular extracellular matrix (ECM) causes glomerular sclerosis in various types of glomerulonephritis. We investigated the effect of prostacyclin, which is an inflammatory mediator, on the production of matrix metalloproteinase (MMP)-9 and MMP-2 in human cultured mesangial cells. The synthesis of Jun proteins and Ets-1 proteins, which are related with MMP-9 gene, was also studied. METHODS The production of MMP-9 and MMP-2 was investigated by gelatin zymography. Western blotting was undertaken to analyze the protein synthesis of Jun and Ets-1. RESULTS Prostacyclin inhibited the production of MMP-9 induced by phorbol ester. The inhibitory effect by prostacyclin was reversed in part by the pretreatment with an inhibitor of protein kinase A, such as H-89. Forskolin also inhibited the production of MMP-9. The production of MMP-2 was constitutionally seen and was not influenced by prostacyclin and forskolin. The synthesis of Jun protein augmented by phorbol ester was suppressed by prostacyclin. Ets-1 protein was constitutionally synthesized and was not affected by phorbol ester and prostacyclin. CONCLUSION Prostacyclin plays an important role in inflammatory glomerular disorders by regulating the metabolism of ECM. The production of MMP-9 and MMP-2 may be under the different control pathways.
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Affiliation(s)
- M Kitahara
- Department of Pediatrics, Shinshu University School of Medicine, Matsumoto, Japan
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