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Chika N, Mori Y, Suzuki O, Ishii T, Sugino A, Ishikawa H, Chiyonobu N, Ito T, Tanabe N, Hatano S, Ishiguro T, Matsuyama T, Kumagai Y, Inokuma S, Ishida H. [Development of Cancer of the Remnant Colorectal Segment after Ileal-Pouch Anal Anastomosis/Ileorectal Anastomosis in Patients with Familial Adenomatous Polyposis]. Gan To Kagaku Ryoho 2024; 51:336-339. [PMID: 38494824] [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: 03/19/2024]
Abstract
PURPOSE This retrospective study was performed to investigate the recent trend of occurrence of cancer of the remnant colorectal segment(RCRS)after ileal-pouch anal anastomosis(IPAA)/ileorectal anastomosis(IRA)and to consider the optimal surveillance methods in patients with familial adenomatous polyposis(FAP)undergoing(procto)colectomy. PATIENTS AND METHODS The subject was a total of patients with FAP undergoing IPAA or IRA between 2005 and 2022. Clinicopathological data were extracted from medical charts and analyzed. Cumulative incidence of cancer in the RCRS and overall survival after treatment of such tumors were calculated by the Kaplan-Meier method. RESULTS There were 45 male and 56 female. IPAA was performed in 49 patients(hand-sewn; n=33, stapled; n=16)and IRA was performed in 52 patients. The median age at initial colorectal surgery was 32 years old(range, 13-66 years old). Median postoperative follow-up was 11 years(range, 1-48 years). Eighty-one patients were confirmed to have pathogenic variant of APC by genetic test. The cumulative incidence of cancer of the RCRS did not differ between patients undergoing IPAA and those undergoing IRA(p= 0.73, 4.1% versus 1.9% at 10 years). The cumulative 5-year overall survival rate after additional surgery for the tumor of RCRS was 82%. CONCLUSION This study has several limitations due to single institutional retrospective study with small cases and non-standardized postoperative endoscopic surveillance. However, our results seem to show satisfactory oncological outcomes of patients with FAP in terms of the control of cancer of the RCRS under postoperative periodic surveillance, regardless of the type of colorectal resection.
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Affiliation(s)
- Noriyasu Chika
- Dept. of Digestive Tract and General Surgery, Saitama Medical Center, Saitama Medical University
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Nakamura W, Hirata M, Oda S, Chiba K, Okada A, Mateos RN, Sugawa M, Iida N, Ushiama M, Tanabe N, Sakamoto H, Sekine S, Hirasawa A, Kawai Y, Tokunaga K, Tsujimoto SI, Shiba N, Ito S, Yoshida T, Shiraishi Y. Assessing the efficacy of target adaptive sampling long-read sequencing through hereditary cancer patient genomes. NPJ Genom Med 2024; 9:11. [PMID: 38368425 PMCID: PMC10874402 DOI: 10.1038/s41525-024-00394-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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Accepted: 01/15/2024] [Indexed: 02/19/2024] Open
Abstract
Innovations in sequencing technology have led to the discovery of novel mutations that cause inherited diseases. However, many patients with suspected genetic diseases remain undiagnosed. Long-read sequencing technologies are expected to significantly improve the diagnostic rate by overcoming the limitations of short-read sequencing. In addition, Oxford Nanopore Technologies (ONT) offers adaptive sampling and computationally driven target enrichment technology. This enables more affordable intensive analysis of target gene regions compared to standard non-selective long-read sequencing. In this study, we developed an efficient computational workflow for target adaptive sampling long-read sequencing (TAS-LRS) and evaluated it through application to 33 genomes collected from suspected hereditary cancer patients. Our workflow can identify single nucleotide variants with nearly the same accuracy as the short-read platform and elucidate complex forms of structural variations. We also newly identified several SINE-R/VNTR/Alu (SVA) elements affecting the APC gene in two patients with familial adenomatous polyposis, as well as their sites of origin. In addition, we demonstrated that off-target reads from adaptive sampling, which is typically discarded, can be effectively used to accurately genotype common single-nucleotide polymorphisms (SNPs) across the entire genome, enabling the calculation of a polygenic risk score. Furthermore, we identified allele-specific MLH1 promoter hypermethylation in a Lynch syndrome patient. In summary, our workflow with TAS-LRS can simultaneously capture monogenic risk variants including complex structural variations, polygenic background as well as epigenetic alterations, and will be an efficient platform for genetic disease research and diagnosis.
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Affiliation(s)
- Wataru Nakamura
- Division of Genome Analysis Platform Development, National Cancer Center Research Institute, Tokyo, Japan
- Department of Pediatrics, Yokohama City University Hospital, Kanagawa, Japan
| | - Makoto Hirata
- Division of Genetic Medicine and Services, National Cancer Center Hospital, Tokyo, Japan
- Department of Molecular Pathology, National Cancer Center Research Institute, Tokyo, Japan
| | - Satoyo Oda
- Division of Genetic Medicine and Services, National Cancer Center Hospital, Tokyo, Japan
- Division of Laboratory Medicine, National Cancer Center Hospital, Tokyo, Japan
| | - Kenichi Chiba
- Division of Genome Analysis Platform Development, National Cancer Center Research Institute, Tokyo, Japan
| | - Ai Okada
- Division of Genome Analysis Platform Development, National Cancer Center Research Institute, Tokyo, Japan
| | - Raúl Nicolás Mateos
- Division of Genome Analysis Platform Development, National Cancer Center Research Institute, Tokyo, Japan
| | - Masahiro Sugawa
- Division of Genome Analysis Platform Development, National Cancer Center Research Institute, Tokyo, Japan
| | - Naoko Iida
- Division of Genome Analysis Platform Development, National Cancer Center Research Institute, Tokyo, Japan
| | - Mineko Ushiama
- Division of Genetic Medicine and Services, National Cancer Center Hospital, Tokyo, Japan
- Department of Clinical Genetics, National Cancer Center Research Institute, Tokyo, Japan
| | - Noriko Tanabe
- Division of Genetic Medicine and Services, National Cancer Center Hospital, Tokyo, Japan
| | - Hiromi Sakamoto
- Division of Genetic Medicine and Services, National Cancer Center Hospital, Tokyo, Japan
- Department of Clinical Genetics, National Cancer Center Research Institute, Tokyo, Japan
| | - Shigeki Sekine
- Division of Molecular Pathology, National Cancer Center Research Institute, Tokyo, Japan
| | - Akira Hirasawa
- Department of Clinical Genetics and Genomic Medicine, Okayama University Hospital, Okayama, Japan
| | - Yosuke Kawai
- Genome Medical Science Project, Research Institute, National Center for Global Health and Medicine, Tokyo, Japan
| | - Katsushi Tokunaga
- Genome Medical Science Project, Research Institute, National Center for Global Health and Medicine, Tokyo, Japan
- Central Biobank, National Center Biobank Network, Tokyo, Japan
| | - Shin-Ichi Tsujimoto
- Department of Pediatrics, Yokohama City University Hospital, Kanagawa, Japan
| | - Norio Shiba
- Department of Pediatrics, Yokohama City University Hospital, Kanagawa, Japan
| | - Shuichi Ito
- Department of Pediatrics, Yokohama City University Hospital, Kanagawa, Japan
| | - Teruhiko Yoshida
- Division of Genetic Medicine and Services, National Cancer Center Hospital, Tokyo, Japan
- Department of Clinical Genetics, National Cancer Center Research Institute, Tokyo, Japan
| | - Yuichi Shiraishi
- Division of Genome Analysis Platform Development, National Cancer Center Research Institute, Tokyo, Japan.
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Kitamura H, Morizane C, Tanabe N, Go I, Maruki Y, Ohba A, Nagashio Y, Kondo S, Hijioka S, Ueno H, Yoshida T, Okusaka T. Clinical features of germline BRCA1/2 or ATM pathogenic variant positive pancreatic cancer in Japan. Pancreatology 2023; 23:964-969. [PMID: 37914629 DOI: 10.1016/j.pan.2023.10.017] [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: 07/03/2023] [Revised: 10/08/2023] [Accepted: 10/22/2023] [Indexed: 11/03/2023]
Abstract
BACKGROUND There has been increasing interest into the role of germline BRCA1/2 pathogenic variants (gBRCA PV) and gATM PV and likely PV (PV and LPV; PV + LPV) in the carcinogenesis and treatment of pancreatic cancer (PC), but the clinical features have not been well described. METHODS Patients with confirmed gBRCA PV and gATM PV + LPV PC treated at our hospital between April 2016 and December 2021, were retrospectively evaluated for clinical characteristics and outcomes. RESULTS Twenty-two patients harbored gBRCA PV and three patients harbored gATM PV + LPV. Of the gBRCA PV patients, 81.8 % received platinum-based chemotherapy with favorable treatment outcomes with an objective response rate of 50.0 % (95 % CI: 23.0-77.0), median progression free survival (PFS) of 334 days, and median overall survival (OS) of 926 days from the initiation of first-line chemotherapy. The annual number of patients with gBRCA PV was two patients per year before January 2021 (when BRACAnalysis became available in Japan), and ten patients during the 10 months thereafter. Four patients (20 %) with gBRCA PV developed soft-tissue metastasis with progression. Two patients with gATM PV + LPV received platinum-based chemotherapy and the best response of those patients was partial response and stable disease and their OS from the initiation of first-line chemotherapy was 1192 and 989 days, and PFS was 579 and 140 days, respectively. CONCLUSION The diagnosis of gBRCA PV-positive PC has increased revealed in recent years. These tumors appear to be sensitive to platinum-based chemotherapy, with long term survival observed in gATM PV + LPV-positive patients.
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Affiliation(s)
- Hidetoshi Kitamura
- Department of Hepatobiliary and Pancreatic Oncology, National Cancer Center Hospital, Japan
| | - Chigusa Morizane
- Department of Hepatobiliary and Pancreatic Oncology, National Cancer Center Hospital, Japan.
| | - Noriko Tanabe
- Department of Genetic Medicine and Services, National Cancer Center Hospital, Japan
| | - Ikeda Go
- Department of Hepatobiliary and Pancreatic Oncology, National Cancer Center Hospital, Japan
| | - Yuta Maruki
- Department of Hepatobiliary and Pancreatic Oncology, National Cancer Center Hospital, Japan
| | - Akihiro Ohba
- Department of Hepatobiliary and Pancreatic Oncology, National Cancer Center Hospital, Japan
| | - Yoshikuni Nagashio
- Department of Hepatobiliary and Pancreatic Oncology, National Cancer Center Hospital, Japan
| | - Shunsuke Kondo
- Department of Hepatobiliary and Pancreatic Oncology, National Cancer Center Hospital, Japan
| | - Susumu Hijioka
- Department of Hepatobiliary and Pancreatic Oncology, National Cancer Center Hospital, Japan
| | - Hideki Ueno
- Department of Hepatobiliary and Pancreatic Oncology, National Cancer Center Hospital, Japan
| | - Teruhiko Yoshida
- Department of Genetic Medicine and Services, National Cancer Center Hospital, Japan
| | - Takuji Okusaka
- Department of Hepatobiliary and Pancreatic Oncology, National Cancer Center Hospital, Japan
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Matsuoka A, Fujimori M, Koyama T, Sato A, Mori K, Hirata M, Tanabe N, Nakachi K, Kato S, Okamoto H, Ogawa K, Komatsu H, Iwasaku M, Miyaji T, Uchitomi Y. Prevalence of psychological distress and associated factors among patients undergoing comprehensive genomic profiling testing: protocol for a multicentre, prospective, observational study. BMJ Open 2023; 13:e072472. [PMID: 37996226 PMCID: PMC10668223 DOI: 10.1136/bmjopen-2023-072472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 11/06/2023] [Indexed: 11/25/2023] Open
Abstract
INTRODUCTION Since May 2019, comprehensive genomic profiling (CGP) has been covered by Japan's health insurance system for patients with solid tumours that have progressed on standard chemotherapy, rare tumours or tumours of unknown primary origin. Although CGP has the potential to identify actionable mutations that can guide the selection of genomically matched therapies for patients with advanced cancer and limited treatment options, less than 10% of patients benefit from CGP testing, which may have a negative impact on patients' mental status. The aim of this study is to investigate the prevalence of psychological distress and associated factors among patients with advanced cancer who are undergoing CGP testing across Japan. METHODS AND ANALYSIS This multicentre, prospective cohort study will enrol a total of 700 patients with advanced cancer undergoing CGP testing. Participants will be asked to complete questionnaires at three timepoints: at the time of consenting to CGP testing (T1), at the time of receiving the CGP results (T2; 2-3 months after T1) and 4-5 months after T2 (T3). Primary outcome is the prevalence of depression as measured by the Patient Health Questionnaire-9 at the three timepoints. Secondary outcomes are the prevalence of anxiety and Quality of Life Score. Associated factors with psychological distress will also be examined, including knowledge about CGP, attitudes, values and preferences towards CGP, satisfaction with oncologists' communication and patient characteristics as well as medical information including CGP test results and genomically matched therapies if provided. The prevalence of depression and anxiety will be estimated using the unadjusted raw rates observed in the total sample. Longitudinal changes in measures will be explored by calculating differences between the timepoints. Multivariate associations between variables will be examined using multiple or logistic regression analysis depending on the outcomes to adjust for confounders and to identify outcome predictors. ETHICS AND DISSEMINATION This study was approved by the Institutional Review Board of the National Cancer Center Japan on 5 January 2023 (ID: 2022-228). Study findings will be disseminated through peer-reviewed journals and conference presentations. TRIAL STATUS The study is currently recruiting participants and the enrolment period will end on 31 March 2025, with an expected follow-up date of 31 March 2026. TRIAL REGISTRATION NUMBER UMIN000049964.
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Affiliation(s)
- Ayumu Matsuoka
- Division of Survivorship Research, Institute for Cancer Control, National Cancer Center, Tokyo, Japan
| | - Maiko Fujimori
- Division of Survivorship Research, Institute for Cancer Control, National Cancer Center, Tokyo, Japan
| | - Takafumi Koyama
- Department of Experimental Therapeutics, National Cancer Center Hospital, Tokyo, Japan
| | - Ayako Sato
- Division of Survivorship Research, Institute for Cancer Control, National Cancer Center, Tokyo, Japan
| | - Keita Mori
- Department of Biostatistics, Clinical Research Support Center, Shizuoka Cancer Center, Shizuoka, Japan
| | - Makoto Hirata
- Department of Genetic Medicine and Services, National Cancer Center Hospital, Tokyo, Japan
| | - Noriko Tanabe
- Department of Genetic Medicine and Services, National Cancer Center Hospital, Tokyo, Japan
| | - Kohei Nakachi
- Department of Medical Oncology, Tochigi Cancer Center, Utsunomiya, Japan
| | - Shunsuke Kato
- Department of Clinical Oncology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Hiroaki Okamoto
- Department of Respiratory Medicine, Yokohama Municipal Citizen's Hospital, Kanagawa, Japan
| | - Kohei Ogawa
- Department of Medical Oncology, Toyama Prefectural Central Hospital, Toyama, Japan
| | - Hirokazu Komatsu
- Department of Hematology and Oncology, Nagoya City University Institute of Medical and Pharmaceutical Sciences, Nagoya, Japan
| | - Masahiro Iwasaku
- Department of Pulmonary Medicine, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Tempei Miyaji
- Division of Survivorship Research, Institute for Cancer Control, National Cancer Center, Tokyo, Japan
| | - Yosuke Uchitomi
- Division of Survivorship Research, Institute for Cancer Control, National Cancer Center, Tokyo, Japan
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Satake T, Kondo S, Tanabe N, Mizuno T, Katsuya Y, Sato J, Koyama T, Yoshida T, Hirata M, Yamamoto N. Pathogenic Germline Variants in BRCA1/2 and p53 Identified by Real-world Comprehensive Cancer Genome Profiling Tests in Asian Patients. Cancer Res Commun 2023; 3:2302-2311. [PMID: 37916805 PMCID: PMC10644847 DOI: 10.1158/2767-9764.crc-23-0018] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 07/05/2023] [Accepted: 10/26/2023] [Indexed: 11/03/2023]
Abstract
Cancer genome profiling (CGP) occasionally identifies pathogenic germline variants (PGV) in cancer susceptibility genes (CSG) as secondary findings. Here, we analyzed the prevalence and clinical characteristics of PGVs based on nationwide real-world data from CGP tests in Japan. We analyzed the genomic information and clinical characteristics of 23,928 patients with solid cancers who underwent either tumor-only (n = 20,189) or paired tumor-normal (n = 3,739) sequencing CGP tests between June 2019 and December 2021 using the comprehensive national database. We assigned clinical significance for all variants and highlighted the prevalence and characteristics of PGVs. Our primary analysis of the tumor-normal sequencing cohort revealed that 152 patients (4.1%) harbored PGVs in 15 CSGs. Among 783 germline variants, 113 were annotated as PGVs, 70 as benign variants, and 600 as variants of uncertain significance. The number of PGVs identified was highest in BRCA1/2, with 56, followed by TP53, with 18. PGVs were the most prevalent in ovarian and peritoneal cancers, including among cancer types common in Asia. In the tumor-only sequencing cohort, of the 5,184 pathogenic somatic variants across 26 CSGs, 784 (15.1%) were extracted according to the European Society for Medical Oncology recommendations for germline-focused tumor analysis. The prevalence of PGVs was similar to that previously reported in Europe and the United States. This is the largest analysis based on real-world tumor-normal sequencing tests in Asia. The more widespread use of the tumor-normal sequencing CGP test could be reasonable for evaluating PGVs. SIGNIFICANCE We analyzed real-world data from over 23,000 patients in Japan, revealing 4.1% harbored PGVs, particularly in BRCA1/2 and TP53, in CSGs. It highlights the prevalence of PGVs in Asian populations and supports the broader adoption of tumor-normal sequencing CGP tests for PGV evaluation.
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Affiliation(s)
- Tomoyuki Satake
- Department of Experimental Therapeutics, National Cancer Center Hospital, Tokyo, Japan
- Department of Hepatobiliary and Pancreatic Oncology, National Cancer Center Hospital East, Kashiwa, Japan
| | - Shunsuke Kondo
- Department of Experimental Therapeutics, National Cancer Center Hospital, Tokyo, Japan
- Outpatient Treatment Center, National Cancer Center Hospital, Tokyo, Japan
| | - Noriko Tanabe
- Genetic Medicine and Services, National Cancer Center Hospital, Tokyo, Japan
| | - Takaaki Mizuno
- Department of Experimental Therapeutics, National Cancer Center Hospital, Tokyo, Japan
| | - Yuki Katsuya
- Department of Experimental Therapeutics, National Cancer Center Hospital, Tokyo, Japan
| | - Jun Sato
- Department of Experimental Therapeutics, National Cancer Center Hospital, Tokyo, Japan
| | - Takafumi Koyama
- Department of Experimental Therapeutics, National Cancer Center Hospital, Tokyo, Japan
| | - Tatsuya Yoshida
- Department of Experimental Therapeutics, National Cancer Center Hospital, Tokyo, Japan
| | - Makoto Hirata
- Genetic Medicine and Services, National Cancer Center Hospital, Tokyo, Japan
| | - Noboru Yamamoto
- Department of Experimental Therapeutics, National Cancer Center Hospital, Tokyo, Japan
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Mori Y, Chika N, Suzuki O, Matsuyama T, Ito T, Muta Y, Chiyonobu N, Hatano S, Momose S, Tanabe N, Akagi K, Ishida H. [A Case of Transverse Colon Cancer Associated with Lynch Syndrome with Excellent Response to Pembrolizumab]. Gan To Kagaku Ryoho 2023; 50:1111-1113. [PMID: 38035847] [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: 12/02/2023]
Abstract
A 47-year-old woman diagnosed with transverse colon cancer with liver, peritoneal, and lymph node metastases was admitted. Modified FOLFOX6(mFOLFOX6)regimen was given as a first line chemotherapy and was followed by pembrolizumab after 1 cycle of the mFOLFOX6, because microsatellite instability(MSI)test of the tumor showed high-frequency MSI. Because of the transverse colon obstruction after 2 cycles of pembrolizumab, she underwent right hemicolectomy. Histological examination of the resected specimen revealed no residual tumor cells in the primary tumor and reginal lymph nodes. Immunohistochemistry for mismatch repair proteins(IHC-MMR)showed loss of MSH2 and MSH6 expression. Genetic test identified a MSH2 pathogenic variant leading to the diagnosis of Lynch syndrome. The present case shows the importance of MSI test or IHC-MMR before the treatment of metastatic colorectal cancer.
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Affiliation(s)
- Yoshiko Mori
- Dept. of Digestive Tract and General Surgery, Saitama Medical Center, Saitama Medical University
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Oda S, Ushiama M, Nakamura W, Gotoh M, Tanabe N, Watanabe T, Odaka Y, Aoyagi K, Sakamoto H, Nakajima T, Sugano K, Yoshida T, Shiraishi Y, Hirata M. A complex rearrangement between APC and TP63 associated with familial adenomatous polyposis identified by multimodal genomic analysis: a case report. Front Oncol 2023; 13:1205847. [PMID: 37601671 PMCID: PMC10434623 DOI: 10.3389/fonc.2023.1205847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Accepted: 07/11/2023] [Indexed: 08/22/2023] Open
Abstract
Genetic testing of the APC gene by sequencing analysis and MLPA is available across commercial laboratories for the definitive genetic diagnosis of familial adenomatous polyposis (FAP). However, some genetic alterations are difficult to detect using conventional analyses. Here, we report a case of a complex genomic APC-TP63 rearrangement, which was identified in a patient with FAP by a series of genomic analyses, including multigene panel testing, chromosomal analyses, and long-read sequencing. A woman in her thirties was diagnosed with FAP due to multiple polyps in her colon and underwent total colectomy. Subsequent examination revealed fundic gland polyposis. No family history suggesting FAP was noted except for a first-degree relative with desmoid fibromatosis. The conventional APC gene testing was performed by her former doctor, but no pathogenic variant was detected, except for 2 variants of unknown significance. The patient was referred to our hospital for further genetic analysis. After obtaining informed consent in genetic counseling, we conducted a multigene panel analysis. As insertion of a part of the TP63 sequence was detected within exon16 of APC, further analyses, including chromosomal analysis and long-read sequencing, were performed and a complex translocation between chromosomes 3 and 5 containing several breakpoints in TP63 and APC was identified. No phenotype associated with TP63 pathogenic variants, such as split-hand/foot malformation (SHFM) or ectrodactyly, ectodermal dysplasia, or cleft lip/palate syndrome (EEC) was identified in the patient or her relatives. Multimodal genomic analyses should be considered in cases where no pathogenic germline variants are detected by conventional genetic testing despite an evident medical or family history of hereditary cancer syndromes.
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Affiliation(s)
- Satoyo Oda
- Department of Genetic Medicine and Services, National Cancer Center Hospital, Tokyo, Japan
- Department of Clinical Laboratories, National Cancer Center Hospital, Tokyo, Japan
| | - Mineko Ushiama
- Department of Genetic Medicine and Services, National Cancer Center Hospital, Tokyo, Japan
- Department of Clinical Genomics, National Cancer Center Research Institute, Tokyo, Japan
| | - Wataru Nakamura
- Division of Genome Analysis Platform Development, National Cancer Center Research Institute, Tokyo, Japan
| | - Masahiro Gotoh
- Department of Genetic Medicine and Services, National Cancer Center Hospital, Tokyo, Japan
- Department of Clinical Genomics, National Cancer Center Research Institute, Tokyo, Japan
| | - Noriko Tanabe
- Department of Genetic Medicine and Services, National Cancer Center Hospital, Tokyo, Japan
| | - Tomoko Watanabe
- Department of Genetic Medicine and Services, National Cancer Center Hospital, Tokyo, Japan
| | - Yoko Odaka
- Department of Clinical Genomics, National Cancer Center Research Institute, Tokyo, Japan
| | - Kazuhiko Aoyagi
- Department of Clinical Genomics, National Cancer Center Research Institute, Tokyo, Japan
| | - Hiromi Sakamoto
- Department of Genetic Medicine and Services, National Cancer Center Hospital, Tokyo, Japan
- Department of Clinical Genomics, National Cancer Center Research Institute, Tokyo, Japan
| | - Takeshi Nakajima
- Department Medical Ethics/Medical Genetics, Kyoto University Graduate School of Medicine, Kyoto, Japan
- Department of Clinical Genetics, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Kokichi Sugano
- Department of Genetic Medicine and Services, National Cancer Center Hospital, Tokyo, Japan
- Department of Genetic Medicine, Kyoundo Hospital, Sasaki Foundation, Tokyo, Japan
| | - Teruhiko Yoshida
- Department of Genetic Medicine and Services, National Cancer Center Hospital, Tokyo, Japan
- Department of Clinical Genomics, National Cancer Center Research Institute, Tokyo, Japan
| | - Yuichi Shiraishi
- Division of Genome Analysis Platform Development, National Cancer Center Research Institute, Tokyo, Japan
| | - Makoto Hirata
- Department of Genetic Medicine and Services, National Cancer Center Hospital, Tokyo, Japan
- Division of Molecular Pathology, National Cancer Center Research Institute, Tokyo, Japan
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8
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Tao K, Yamazaki F, Kubo T, Sunami K, Kumamoto T, Arakawa A, Sugiyama M, Watanabe Y, Nakajima M, Shirakawa N, Tanimura K, Koyama T, Hirata M, Sudo K, Tanabe N, Watanabe T, Yoshida T, Kitami M, Yoshida A, Yatabe Y, Nakano Y, Ohira M, Kamijo T, Nakazawa A, Kato M, Ichimura K, Kohno T, Yamamoto N, Hishiki T, Ichikawa H, Ogawa C. Pediatric Precision Medicine at the National Cancer Center Japan: Prospective Genomic Study of Pediatric Patients with Cancer as Part of the TOP-GEAR Project. JCO Precis Oncol 2023; 7:e2200266. [PMID: 37410973 DOI: 10.1200/po.22.00266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 02/03/2023] [Accepted: 05/26/2023] [Indexed: 07/08/2023] Open
Abstract
PURPOSE This single-center, prospective molecular profiling study characterizes genomic alterations and identifies therapeutic targets in advanced pediatric solid tumors. METHODS As part of the TOP-GEAR (Trial of Onco-Panel for Gene profiling to Estimate both Adverse events and Response by cancer treatment) project at the National Cancer Center (NCC), Japan, we enrolled pediatric patients with a refractory or recurrent disease during August 2016-December 2021 and performed genomic analysis of matched tumors and blood using originally developed cancer gene panels, NCC Oncopanel (ver. 4.0) and NCC Oncopanel Ped (ver. 1.0). RESULTS Of 142 patients (age, 1-28 years) enrolled, 128 (90%) were evaluable for genomic analysis; 76 (59%) patients harbored at least one reportable somatic or germline alteration. The tumor samples were collected during the initial diagnosis in 65 (51%) patients, after treatment initiation in 11 (9%) patients, and upon either disease progression or relapse in 52 (41%) patients. The leading altered gene was TP53, followed by MYCN, MYC, CDKN2A, and CDK4. The commonly affected molecular processes were transcription, cell-cycle regulation, epigenetic modifiers, and RAS/mitogen-activated protein kinase signaling. Twelve (9%) patients carried pathogenic germline variants in cancer-predisposing genes. Potentially actionable findings were identified in 40 (31%) patients; to date, 13 (10%) patients have received the recommended therapy on the basis of their genomic profiles. Although four patients had access to targeted therapy through clinical trials, the agents were used in nine patients in an off-label setting. CONCLUSION The implementation of genomic medicine has furthered our understanding of tumor biology and provided new therapeutic strategies. However, the paucity of proposed agents limits the full potential of actionability, emphasizing the significance of facilitating access to targeted cancer therapies.
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Affiliation(s)
- Kayoko Tao
- Department of Pediatric Oncology, National Cancer Center Hospital, Tokyo, Japan
- Department of Clinical Genomics, National Cancer Center Research Institute, Tokyo, Japan
| | - Fumito Yamazaki
- Department of Clinical Genomics, National Cancer Center Research Institute, Tokyo, Japan
- Department of Pediatrics, School of Medicine, Keio University, Tokyo, Japan
| | - Takashi Kubo
- Department of Clinical Genomics, National Cancer Center Research Institute, Tokyo, Japan
- Department of Laboratory Medicine, National Cancer Center Hospital, Tokyo, Japan
| | - Kuniko Sunami
- Department of Laboratory Medicine, National Cancer Center Hospital, Tokyo, Japan
| | - Tadashi Kumamoto
- Department of Pediatric Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Ayumu Arakawa
- Department of Pediatric Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Masanaka Sugiyama
- Department of Pediatric Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Yuko Watanabe
- Department of Pediatric Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Miho Nakajima
- Department of Pediatric Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Nami Shirakawa
- Department of Pediatric Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Kazuki Tanimura
- Department of Pediatric Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Takafumi Koyama
- Department of Experimental Therapeutics, National Cancer Center Hospital, Tokyo, Japan
| | - Makoto Hirata
- Department of Genetic Services and Medicine, National Cancer Center Hospital, Tokyo, Japan
| | - Kazuki Sudo
- Department of Medical Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Noriko Tanabe
- Department of Genetic Services and Medicine, National Cancer Center Hospital, Tokyo, Japan
| | - Tomoko Watanabe
- Department of Genetic Services and Medicine, National Cancer Center Hospital, Tokyo, Japan
| | - Teruhiko Yoshida
- Department of Genetic Services and Medicine, National Cancer Center Hospital, Tokyo, Japan
| | - Mayuko Kitami
- Department of Laboratory Medicine, National Cancer Center Hospital, Tokyo, Japan
| | - Akihiko Yoshida
- Department of Diagnostic Pathology, National Cancer Center Hospital, Tokyo, Japan
| | - Yasushi Yatabe
- Department of Diagnostic Pathology, National Cancer Center Hospital, Tokyo, Japan
| | - Yoshiko Nakano
- Department of Clinical Genomics, National Cancer Center Research Institute, Tokyo, Japan
- Division of Brain Tumor Translational Research, National Cancer Center Research Institute, Tokyo, Japan
- Department of Pediatrics, The University of Tokyo Hospital, Tokyo, Japan
| | - Miki Ohira
- Research Institute for Clinical Oncology, Saitama Cancer Center, Saitama, Japan
| | - Takehiko Kamijo
- Research Institute for Clinical Oncology, Saitama Cancer Center, Saitama, Japan
| | - Atsuko Nakazawa
- Department of Clinical Research, Saitama Children's Medical Center, Saitama, Japan
| | - Motohiro Kato
- Department of Pediatrics, The University of Tokyo Hospital, Tokyo, Japan
- Children's Cancer Center, National Center for Child Health and Development, Tokyo, Japan
| | - Koichi Ichimura
- Division of Brain Tumor Translational Research, National Cancer Center Research Institute, Tokyo, Japan
- Department of Brain Disease Translational Research, Juntendo University Department of Brain Disease Translational Research, Juntendo University Graduate School of Medicine of Medicine, Tokyo, Japan
| | - Takashi Kohno
- Division of Translational Genomics, Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Tokyo, Japan
- Division of Genome Biology, National Cancer Center Research Institute, Tokyo, Japan
| | - Noboru Yamamoto
- Department of Experimental Therapeutics, National Cancer Center Hospital, Tokyo, Japan
| | - Tomoro Hishiki
- Department of Pediatric Surgery, Chiba University, Chiba, Japan
| | - Hitoshi Ichikawa
- Department of Clinical Genomics, National Cancer Center Research Institute, Tokyo, Japan
- Division of Translational Genomics, Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Tokyo, Japan
| | - Chitose Ogawa
- Department of Pediatric Oncology, National Cancer Center Hospital, Tokyo, Japan
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9
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Nishino M, Fujimori M, Koyama T, Hirata M, Tanabe N, Shimizu T, Yamamoto N, Uchitomi Y. Prevalence of psychological distress, quality of life, and satisfaction among patients and family members following comprehensive genomic profiling testing: Protocol of the Quality of life for Cancer genomics and Advanced Therapeutics (Q-CAT) study. PLoS One 2023; 18:e0283968. [PMID: 37235572 DOI: 10.1371/journal.pone.0283968] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 03/02/2023] [Indexed: 05/28/2023] Open
Abstract
Precision medicine is rapidly changing the diagnostic and treatment spectrum of oncology. In May 2019, comprehensive genomic profiling (CGP) (somatic and/or germline) was approved for reimbursement in Japan. While the promise of novel and targeted therapies has elevated hopes for the benefits of CGP, the lack of relevant genomic findings and/or limited access to relevant therapies remain important themes in this field. These challenges may also negatively influence the psychology of both cancer patients and their family members. However, few studies have reported longitudinal data on quality of life (QOL) with CGP. Here, we report the protocol of a prospective study, Q-CAT (QOL for Cancer genomics and Advanced Therapeutics among patients and their family members), which aims to explore the mental burden on patients and families arising from the implementation of CGP testing by collecting real-world longitudinal data using outcomes obtained with an electronic patient report, known as ePRO. This study has been registered with the Japan Registry of Clinical Trials (jRCT1030200039).
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Affiliation(s)
- Makoto Nishino
- Department of Experimental Therapeutics, National Cancer Center Hospital, Tokyo, Japan
| | - Maiko Fujimori
- Division of Supportive Care, Survivorship and Translational Research, National Cancer Center Institute for Cancer Control, Tokyo, Japan
| | - Takafumi Koyama
- Department of Experimental Therapeutics, National Cancer Center Hospital, Tokyo, Japan
| | - Makoto Hirata
- Department of Genetic Medicine and Services, National Cancer Center Hospital, Tokyo, Japan
| | - Noriko Tanabe
- Department of Genetic Medicine and Services, National Cancer Center Hospital, Tokyo, Japan
| | - Toshio Shimizu
- Department of Experimental Therapeutics, National Cancer Center Hospital, Tokyo, Japan
| | - Noboru Yamamoto
- Department of Experimental Therapeutics, National Cancer Center Hospital, Tokyo, Japan
| | - Yosuke Uchitomi
- Innovation Center for Supportive, Palliative and Psychosocial Care and Department of Psycho-Oncology, National Cancer Center Hospital, and Center for Public Health Sciences, National Cancer Center, Tokyo, Japan
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10
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Fukushi G, Yamada M, Kakugawa Y, Gotoh M, Tanabe N, Ushiama M, Watanabe T, Yamazaki T, Matsumoto M, Hirata M, Nakajima T, Sugano K, Yoshida T, Matsuda T, Igarashi Y, Saito Y. Genotype-phenotype correlation of small-intestinal polyps on small-bowel capsule endoscopy in familial adenomatous polyposis. Gastrointest Endosc 2023; 97:59-68.e7. [PMID: 36084716 DOI: 10.1016/j.gie.2022.08.042] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 08/18/2022] [Accepted: 08/30/2022] [Indexed: 01/20/2023]
Abstract
BACKGROUND AND AIMS In familial adenomatous polyposis (FAP), neoplastic lesions outside the colon have become increasingly important. The genotype-phenotype correlation has been established for duodenal polyps, and regular screening is recommended. However, this correlation remains unclear for small-intestinal lesions, except for reports on the relationship between their occurrence and Spigelman stage. Here, we used small-bowel capsule endoscopy (SBCE) to investigate the genotype-phenotype correlation of small-intestinal polyps in FAP. METHODS The genotype-phenotype correlation of small-intestinal polyps was investigated in patients with FAP who underwent SBCE, Esophagogastroduodenoscopy (EGD), and adenomatous polyposis coli (APC) gene analysis. Of 64 patients with FAP who underwent SBCE, 41 were included in the final analysis, 4 did not undergo a complete small intestine examination, and 19 did not undergo genetic analysis. RESULTS The prevalence (median number) of small-intestinal polyps by Spigelman stage was 26% (1.5), 0% (0), 44% (5), 60% (4), and 73% (25.5) for stages 0 to IV, respectively. Significantly more small-intestinal polyps were found in Spigelman stage III and IV groups than in the stage 0 group (P < .05). The APC variant was negative for 6 patients (15%), and the sites associated with more than 5 small-intestinal polyps were codons 278, 1062, 1114, 1281, 1307, 1314, and 1504. CONCLUSIONS In FAP patients, SBCE surveillance is potentially recommended for patients with pathogenic variants in the APC gene at codons 278 and 1062 to 1504 or with Spigelman stage III or higher.
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Affiliation(s)
- Gozo Fukushi
- Endoscopy Division, National Cancer Center Hospital, Tokyo, Japan; Cancer Screening Division, Research Center for Cancer Prevention and Screening, National Cancer Center, Tokyo, Japan; Division of Gastroenterology and Hepatology, Toho University Omori Medical Center, Tokyo, Japan
| | - Masayoshi Yamada
- Endoscopy Division, National Cancer Center Hospital, Tokyo, Japan; Department of Genetic Medicine and Services, National Cancer Center Hospital, Tokyo, Japan
| | - Yasuo Kakugawa
- Cancer Screening Division, Research Center for Cancer Prevention and Screening, National Cancer Center, Tokyo, Japan
| | - Masahiro Gotoh
- Department of Clinical Genomics, National Cancer Center Research Institute, Tokyo, Japan
| | - Noriko Tanabe
- Department of Genetic Medicine and Services, National Cancer Center Hospital, Tokyo, Japan
| | - Mineko Ushiama
- Department of Genetic Medicine and Services, National Cancer Center Hospital, Tokyo, Japan; Department of Clinical Genomics, National Cancer Center Research Institute, Tokyo, Japan
| | - Tomoko Watanabe
- Department of Genetic Medicine and Services, National Cancer Center Hospital, Tokyo, Japan
| | | | - Minori Matsumoto
- Cancer Screening Division, Research Center for Cancer Prevention and Screening, National Cancer Center, Tokyo, Japan
| | - Makoto Hirata
- Department of Genetic Medicine and Services, National Cancer Center Hospital, Tokyo, Japan; Department of Clinical Genomics, National Cancer Center Research Institute, Tokyo, Japan
| | - Takeshi Nakajima
- Endoscopy Division, National Cancer Center Hospital, Tokyo, Japan
| | - Kokichi Sugano
- Department of Genetic Medicine, Koundo Hospital, Sasaki Foundation, Tokyo, Japan
| | - Teruhiko Yoshida
- Department of Genetic Medicine and Services, National Cancer Center Hospital, Tokyo, Japan; Department of Clinical Genomics, National Cancer Center Research Institute, Tokyo, Japan
| | - Takahisa Matsuda
- Endoscopy Division, National Cancer Center Hospital, Tokyo, Japan; Cancer Screening Division, Research Center for Cancer Prevention and Screening, National Cancer Center, Tokyo, Japan; Division of Gastroenterology and Hepatology, Toho University Omori Medical Center, Tokyo, Japan
| | - Yoshinori Igarashi
- Division of Gastroenterology and Hepatology, Toho University Omori Medical Center, Tokyo, Japan
| | - Yutaka Saito
- Endoscopy Division, National Cancer Center Hospital, Tokyo, Japan
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11
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Kohatsu S, Tanabe N, Yamamoto D, Isono K. Which Sugar to Take and How Much to Take? Two Distinct Decisions Mediated by Separate Sensory Channels. Front Mol Neurosci 2022; 15:895395. [PMID: 35726300 PMCID: PMC9206540 DOI: 10.3389/fnmol.2022.895395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Accepted: 05/09/2022] [Indexed: 11/13/2022] Open
Abstract
In Drosophila melanogaster, gustatory receptor neurons (GRNs) for sugar taste coexpress various combinations of gustatory receptor (Gr) genes and are found in multiple sites in the body. To determine whether diverse sugar GRNs expressing different combinations of Grs have distinct behavioral roles, we examined the effects on feeding behavior of genetic manipulations which promote or suppress functions of GRNs that express either or both of the sugar receptor genesGr5a (Gr5a+ GRNs) and Gr61a (Gr61a+ GRNs). Cell-population-specific overexpression of the wild-type form of Gr5a (Gr5a+) in the Gr5a mutant background revealed that Gr61a+ GRNs localized on the legs and internal mouthpart critically contribute to food choice but not to meal size decisions, while Gr5a+ GRNs, which are broadly expressed in many sugar-responsive cells across the body with an enrichment in the labella, are involved in both food choice and meal size decisions. The legs harbor two classes of Gr61a expressing GRNs, one with Gr5a expression (Gr5a+/Gr61a+ GRNs) and the other without Gr5aexpression (Gr5a−/Gr61a+ GRNs). We found that blocking the Gr5a+ class in the entire body reduced the preference for trehalose and blocking the Gr5a- class reduced the preference for fructose. These two subsets of GRNsare also different in their central projections: axons of tarsal Gr5a+/Gr61a+ GRNs terminate exclusively in the ventral nerve cord, while some axons of tarsal Gr5a−/Gr61a+ GRNs ascend through the cervical connectives to terminate in the subesophageal ganglion. We propose that tarsal Gr5a+/Gr61a+ GRNs and Gr5a−/Gr61a+ GRNs represent functionally distinct sensory pathways that function differently in food preference and meal-size decisions.
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Affiliation(s)
- Soh Kohatsu
- Neuro-ICT Laboratory, Advanced ICT Research Institute, National Institute of Information and Communications Technology, Kobe, Japan
- *Correspondence: Soh Kohatsu Kunio Isono
| | - Noriko Tanabe
- Fukuoka Junior College for Kindergarten Teachers, Fukuoka, Japan
| | - Daisuke Yamamoto
- Neuro-ICT Laboratory, Advanced ICT Research Institute, National Institute of Information and Communications Technology, Kobe, Japan
| | - Kunio Isono
- Graduate School of Life Sciences, Tohoku University, Sendai, Japan
- *Correspondence: Soh Kohatsu Kunio Isono
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12
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Takamizawa S, Morizane C, Tanabe N, Maruki Y, Kondo S, Hijioka S, Ueno H, Sugano K, Hiraoka N, Okusaka T. Clinical characteristics of pancreatic and biliary tract cancers associated with Lynch syndrome. J Hepatobiliary Pancreat Sci 2021; 29:377-384. [PMID: 34689428 PMCID: PMC9298874 DOI: 10.1002/jhbp.1063] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 09/05/2021] [Accepted: 09/13/2021] [Indexed: 12/20/2022]
Abstract
BACKGROUND/PURPOSE Pancreatic and biliary tract cancers are one of the Lynch syndrome-associated malignancies. There are few reports describing the patients' backgrounds and clinical characteristics. METHODS We retrospectively reviewed the medical records of patients with Lynch syndrome-associated pancreatic or biliary tract malignant tumors at National Cancer Center Hospital between March 1992 and October 2019. RESULTS Fourteen patients were included. They had a history of multiple cancers and a family history of cancer. For the six patients with pancreatic malignant tumor, the median age was 63 years. The primary tumor site of 5/6 patients with pancreatic cancer was the body or tail. Only one patient had pancreatic head cancer. The median overall survival (OS) was 68 (range, 17-198) months. For the eight patients with biliary tract malignant tumor, the median age was 65.5 years. The primary tumor site of 5/8 patients was the intrahepatic bile duct, whereas the primary site of 2/8 was the hilar bile duct. The median OS was 62 (range, 3-183) months. CONCLUSIONS This study brought out several observations on tumor location, late development, and favorable long-term outcomes. Additional studies are needed to identify the characteristics.
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Affiliation(s)
- Shigemasa Takamizawa
- Department of Hepatobiliary and Pancreatic Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Chigusa Morizane
- Department of Hepatobiliary and Pancreatic Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Noriko Tanabe
- Department of Genetic Medicine and Services, National Cancer Center Hospital, Tokyo, Japan
| | - Yuta Maruki
- Department of Hepatobiliary and Pancreatic Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Shunsuke Kondo
- Department of Hepatobiliary and Pancreatic Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Susumu Hijioka
- Department of Hepatobiliary and Pancreatic Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Hideki Ueno
- Department of Hepatobiliary and Pancreatic Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Kokichi Sugano
- Department of Genetic Medicine and Services, National Cancer Center Hospital, Tokyo, Japan
| | - Nobuyoshi Hiraoka
- Department of Pathology, National Cancer Center Hospital, Tokyo, Japan
| | - Takuji Okusaka
- Department of Hepatobiliary and Pancreatic Oncology, National Cancer Center Hospital, Tokyo, Japan
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13
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Cho H, Yamada M, Sekine S, Tanabe N, Ushiama M, Hirata M, Ogawa G, Gotoh M, Yoshida T, Yoshikawa T, Saito Y, Kuchiba A, Oda I, Sugano K. Gastric cancer is highly prevalent in Lynch syndrome patients with atrophic gastritis. Gastric Cancer 2021; 24:283-291. [PMID: 32794040 DOI: 10.1007/s10120-020-01113-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [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: 05/15/2020] [Accepted: 08/04/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND Although gastric cancer is one of the Lynch syndrome (LS)-related tumors, the clinicopathological features of gastric cancer in patients with LS remain uncertain. To investigate the incidence risk and clinicopathological features of gastric neoplasms in LS, we conducted a retrospective cohort study in Japanese LS patients. METHODS LS patients with pathogenic mismatch repair (MMR) gene variants were extracted from the LS registry of the National Cancer Center Hospital, Japan. Cumulative risks of gastric neoplasm, including dysplasia and cancer, were estimated using the Kaplan-Meier method. Gastric atrophy was evaluated endoscopically and/or histologically. Immunohistochemical staining for MMR proteins was performed for all available specimens. RESULTS Of 118 eligible patients, 26 patients were diagnosed with 58 gastric neoplasms. The cumulative incidence of gastric neoplasm was 41.0% (95% confidence interval, 26.9-55.0) at the age of 70. Of these, 13 (50%) patients developed synchronous and/or metachronous multiple gastric neoplasms. Among the 49 gastric neoplasms available for detailed pathological evaluation, all were associated with intestinal metaplasia. Immunohistochemically, 42 (86%) were MMR-deficient. The individuals with gastric atrophy had a significantly higher risk of developing gastric neoplasms compared with those without gastric atrophy (26 cases/54 individuals vs. 0 cases/53 individuals) (P = 0.026). CONCLUSION LS patients, particularly those with atrophic gastritis, are at high risk of gastric neoplasm and often develop multiple tumors. Endoscopic surveillance for gastric cancer is recommended for LS patients, especially those with atrophic gastritis.
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Affiliation(s)
- Hourin Cho
- Endoscopy Division, National Cancer Center Hospital, 5-1-1, Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Masayoshi Yamada
- Endoscopy Division, National Cancer Center Hospital, 5-1-1, Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan.
| | - Shigeki Sekine
- Division of Pathology and Clinical Laboratories, National Cancer Center Hospital, 5-1-1, Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Noriko Tanabe
- Department of Genetic Medicine and Services, National Cancer Center Hospital, 5-1-1, Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Mineko Ushiama
- Department of Genetic Medicine and Services, National Cancer Center Hospital, 5-1-1, Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
- Department of Clinical Genomics, National Cancer Center Research Institute, 5-1-1, Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Makoto Hirata
- Department of Genetic Medicine and Services, National Cancer Center Hospital, 5-1-1, Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Gakuto Ogawa
- Biostatistics Division, Center for Research Administration and Support, National Cancer Center, 5-1-1, Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Masahiro Gotoh
- Department of Clinical Genomics, National Cancer Center Research Institute, 5-1-1, Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Teruhiko Yoshida
- Department of Genetic Medicine and Services, National Cancer Center Hospital, 5-1-1, Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Takaki Yoshikawa
- Department of Gastric Surgery, National Cancer Center Hospital, 5-1-1, Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Yutaka Saito
- Endoscopy Division, National Cancer Center Hospital, 5-1-1, Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Aya Kuchiba
- Biostatistics Division, Center for Research Administration and Support, National Cancer Center, 5-1-1, Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Ichiro Oda
- Endoscopy Division, National Cancer Center Hospital, 5-1-1, Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Kokichi Sugano
- Department of Genetic Medicine and Services, National Cancer Center Hospital, 5-1-1, Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
- Oncogene Research Unit/Cancer Prevention Unit, Tochigi Cancer Center Research Institute, 5-1-1, Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
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14
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Morota T, Sugita S, Cho Y, Kanamaru M, Tatsumi E, Sakatani N, Honda R, Hirata N, Kikuchi H, Yamada M, Yokota Y, Kameda S, Matsuoka M, Sawada H, Honda C, Kouyama T, Ogawa K, Suzuki H, Yoshioka K, Hayakawa M, Hirata N, Hirabayashi M, Miyamoto H, Michikami T, Hiroi T, Hemmi R, Barnouin OS, Ernst CM, Kitazato K, Nakamura T, Riu L, Senshu H, Kobayashi H, Sasaki S, Komatsu G, Tanabe N, Fujii Y, Irie T, Suemitsu M, Takaki N, Sugimoto C, Yumoto K, Ishida M, Kato H, Moroi K, Domingue D, Michel P, Pilorget C, Iwata T, Abe M, Ohtake M, Nakauchi Y, Tsumura K, Yabuta H, Ishihara Y, Noguchi R, Matsumoto K, Miura A, Namiki N, Tachibana S, Arakawa M, Ikeda H, Wada K, Mizuno T, Hirose C, Hosoda S, Mori O, Shimada T, Soldini S, Tsukizaki R, Yano H, Ozaki M, Takeuchi H, Yamamoto Y, Okada T, Shimaki Y, Shirai K, Iijima Y, Noda H, Kikuchi S, Yamaguchi T, Ogawa N, Ono G, Mimasu Y, Yoshikawa K, Takahashi T, Takei Y, Fujii A, Nakazawa S, Terui F, Tanaka S, Yoshikawa M, Saiki T, Watanabe S, Tsuda Y. Sample collection from asteroid (162173) Ryugu by Hayabusa2: Implications for surface evolution. Science 2020; 368:654-659. [DOI: 10.1126/science.aaz6306] [Citation(s) in RCA: 104] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 04/02/2020] [Indexed: 11/02/2022]
Affiliation(s)
- T. Morota
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
- Departments of Earth and Environmental Sciences and Physics, Nagoya University, Nagoya 464-8601, Japan
| | - S. Sugita
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - Y. Cho
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - M. Kanamaru
- Department of Earth and Space Science, Osaka University, Toyonaka 560-0043, Japan
| | - E. Tatsumi
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
- Departamento de Astrofísica, Universidad de La Laguna, 38206 La Laguna, Tenerife, Spain
- Instituto de Astrofísica de Canarias, 38205 La Laguna, Tenerife, Spain
| | - N. Sakatani
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - R. Honda
- Department of Information Science, Kochi University, Kochi 780-8520, Japan
| | - N. Hirata
- Department of Planetology, Kobe University, Kobe 657-8501, Japan
| | - H. Kikuchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M. Yamada
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - Y. Yokota
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Department of Information Science, Kochi University, Kochi 780-8520, Japan
| | - S. Kameda
- Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - M. Matsuoka
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - H. Sawada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - C. Honda
- School of Computer Science and Engineering, University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - T. Kouyama
- National Institute of Advanced Industrial Science and Technology, Tokyo 135-0064 Japan
| | - K. Ogawa
- Department of Planetology, Kobe University, Kobe 657-8501, Japan
- JAXA Space Exploration Center, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - H. Suzuki
- Department of Physics, Meiji University, Kawasaki 214-8571, Japan
| | - K. Yoshioka
- Department of Complexity Science and Engineering, The University of Tokyo, Kashiwa 277-8561, Japan
| | - M. Hayakawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - N. Hirata
- School of Computer Science and Engineering, University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - M. Hirabayashi
- Department of Aerospace Engineering, Auburn University, Auburn, AL 36849, USA
| | - H. Miyamoto
- Department of Systems Innovation, The University of Tokyo, Tokyo 113-8656, Japan
- Planetary Science Institute, Tucson, AZ 85719, USA
| | - T. Michikami
- Faculty of Engineering, Kindai University, Higashi-Hiroshima 739-2116, Japan
| | - T. Hiroi
- Department of Earth, Environmental and Planetary Sciences, Brown University, Providence, RI 02912, USA
| | - R. Hemmi
- The University Museum, The University of Tokyo, Tokyo 113-0033, Japan
| | - O. S. Barnouin
- Johns Hopkins University Applied Physics Laboratory, Laurel, MD 20723, USA
| | - C. M. Ernst
- Johns Hopkins University Applied Physics Laboratory, Laurel, MD 20723, USA
| | - K. Kitazato
- School of Computer Science and Engineering, University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - T. Nakamura
- Department of Earth Science, Tohoku University, Sendai 980-8578, Japan
| | - L. Riu
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - H. Senshu
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - H. Kobayashi
- Departments of Earth and Environmental Sciences and Physics, Nagoya University, Nagoya 464-8601, Japan
| | - S. Sasaki
- Department of Earth and Space Science, Osaka University, Toyonaka 560-0043, Japan
| | - G. Komatsu
- International Research School of Planetary Sciences, Università d’Annunzio, 65127 Pescara, Italy
| | - N. Tanabe
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - Y. Fujii
- Department of Information Science, Kochi University, Kochi 780-8520, Japan
| | - T. Irie
- Departments of Earth and Environmental Sciences and Physics, Nagoya University, Nagoya 464-8601, Japan
| | - M. Suemitsu
- Departments of Earth and Environmental Sciences and Physics, Nagoya University, Nagoya 464-8601, Japan
| | - N. Takaki
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - C. Sugimoto
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - K. Yumoto
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - M. Ishida
- Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - H. Kato
- Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - K. Moroi
- Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - D. Domingue
- Planetary Science Institute, Tucson, AZ 85719, USA
| | - P. Michel
- Université Côte d’Azur, Observatoire de la Côte d’Azur, Centre National de le Recherche Scientifique, Laboratoire Lagrange, 06304 Nice, France
| | - C. Pilorget
- Institut d’Astrophysique Spatiale, Université Paris-Sud, 91405 Orsay, France
| | - T. Iwata
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - M. Abe
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - M. Ohtake
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- School of Computer Science and Engineering, University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - Y. Nakauchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K. Tsumura
- Department of Natural Science, Faculty of Science and Engineering, Tokyo City University, Tokyo 158-8557, Japan
- Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, Sendai 980-8578, Japan
| | - H. Yabuta
- Department of Earth and Planetary Systems Science, Hiroshima University, Higashi-Hiroshima 739-8526, Japan
| | - Y. Ishihara
- National Institute for Environmental Studies, Tsukuba 305-8506, Japan
| | - R. Noguchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K. Matsumoto
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
- National Astronomical Observatory of Japan, Mitaka 181-8588, Japan
| | - A. Miura
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - N. Namiki
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
- National Astronomical Observatory of Japan, Mitaka 181-8588, Japan
| | - S. Tachibana
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M. Arakawa
- Department of Planetology, Kobe University, Kobe 657-8501, Japan
| | - H. Ikeda
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - K. Wada
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - T. Mizuno
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - C. Hirose
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - S. Hosoda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - O. Mori
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - T. Shimada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S. Soldini
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Department of Mechanical, Materials and Aerospace Engineering, University of Liverpool, Liverpool L69 3BX, UK
| | - R. Tsukizaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - H. Yano
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - M. Ozaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - H. Takeuchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - Y. Yamamoto
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - T. Okada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Department of Chemistry, The University of Tokyo, Tokyo 113-0033, Japan
| | - Y. Shimaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K. Shirai
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Y. Iijima
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - H. Noda
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
- National Astronomical Observatory of Japan, Mitaka 181-8588, Japan
| | - S. Kikuchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - T. Yamaguchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - N. Ogawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - G. Ono
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - Y. Mimasu
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K. Yoshikawa
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - T. Takahashi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Y. Takei
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - A. Fujii
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S. Nakazawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - F. Terui
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S. Tanaka
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - M. Yoshikawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - T. Saiki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S. Watanabe
- Departments of Earth and Environmental Sciences and Physics, Nagoya University, Nagoya 464-8601, Japan
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Y. Tsuda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
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Taguchi S, Tanabe N, Niwa J, Doyu M. Spect findings in Parkinson’s disease – 2nd report: Relevance to hallucinations induced by antiparkinsonian drugs. J Neurol Sci 2019. [DOI: 10.1016/j.jns.2019.10.1149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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16
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Koguchi R, Jankova K, Tanabe N, Amino Y, Hayasaka Y, Kobayashi D, Miyajima T, Yamamoto K, Tanaka M. Controlling the Hydration Structure with a Small Amount of Fluorine To Produce Blood Compatible Fluorinated Poly(2-methoxyethyl acrylate). Biomacromolecules 2019; 20:2265-2275. [PMID: 31042022 DOI: 10.1021/acs.biomac.9b00201] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Poly(2-methoxyethyl acrylate) (PMEA) shows excellent blood compatibility because of the existence of intermediate water. Various modifications of PMEA by changing its main or side chain's chemical structure allowed tuning of the water content and the blood compatibility of numerous novel polymers. Here, we exploit a possibility of manipulating the surface hydration structure of PMEA by incorporation of small amounts of hydrophobic fluorine groups in MEA polymers using atom-transfer radical polymerization and the (macro) initiator concept. Two kinds of fluorinated MEA polymers with similar molecular weights and the same 5.5 mol % of fluorine content were synthesized using the bromoester of 2,2,3,3,4,4,5,5,6,6,7,7,8,8-pentadecafluoro-1-octanol (F15) and poly(2,2,2-trifluoroethyl methacrylate) (PTFEMA) as (macro) initiators, appearing liquid and solid at room temperature, respectively. The fibrinogen adsorption of the two varieties of fluorinated MEA polymers was different, which could not be explained only by the bulk hydration structure. Both polymers show a nanostructured morphology in the hydrated state with different sizes of the features. The measured elastic modulus of the domains appearing in atomic force microscopy and the intermediate water content shed light on the distinct mechanism of blood compatibility. Contact angle measurements reveal the surface hydration dynamics-while in the hydrated state, F15- b-PMEA reorients easily to the surface exposing its PMEA part to the water, the small solid PTFEMA block with high glass-transition temperature suppresses the movement of PTFEMA- b-PMEA and its reconstruction on the surface. These findings illustrate that in order to make a better blood compatible polymer, the chains containing sufficient intermediate water need to be mobile and efficiently oriented to the water surface.
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Affiliation(s)
- Ryohei Koguchi
- Soft Materials Chemistry, Institute for Materials Chemistry and Engineering , Kyushu University , Build. CE41, 744 Motooka , Nishi-ku, Fukuoka 819-0395 , Japan.,AGC Incorporation New Product R&D Center , 1150 Hazawa-cho , Kanagawa-ku, Yokohama , Kanagawa 221-8755 , Japan
| | - Katja Jankova
- Soft Materials Chemistry, Institute for Materials Chemistry and Engineering , Kyushu University , Build. CE41, 744 Motooka , Nishi-ku, Fukuoka 819-0395 , Japan.,Department of Energy Conversion and Storage , Technical University of Denmark , Elektrovej, Build. 375 , 2800 Kongens Lyngby , Denmark
| | - Noriko Tanabe
- AGC Incorporation Innovative Technology Research Center , 1150 Hazawa-cho , Kanagawa-ku, Yokohama , Kanagawa 221-8755 , Japan
| | - Yosuke Amino
- AGC Incorporation Innovative Technology Research Center , 1150 Hazawa-cho , Kanagawa-ku, Yokohama , Kanagawa 221-8755 , Japan
| | - Yuki Hayasaka
- AGC Incorporation Innovative Technology Research Center , 1150 Hazawa-cho , Kanagawa-ku, Yokohama , Kanagawa 221-8755 , Japan
| | - Daisuke Kobayashi
- AGC Incorporation Innovative Technology Research Center , 1150 Hazawa-cho , Kanagawa-ku, Yokohama , Kanagawa 221-8755 , Japan
| | - Tatsuya Miyajima
- AGC Incorporation Innovative Technology Research Center , 1150 Hazawa-cho , Kanagawa-ku, Yokohama , Kanagawa 221-8755 , Japan
| | - Kyoko Yamamoto
- AGC Incorporation New Product R&D Center , 1150 Hazawa-cho , Kanagawa-ku, Yokohama , Kanagawa 221-8755 , Japan
| | - Masaru Tanaka
- Soft Materials Chemistry, Institute for Materials Chemistry and Engineering , Kyushu University , Build. CE41, 744 Motooka , Nishi-ku, Fukuoka 819-0395 , Japan
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17
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Sunami K, Ichikawa H, Kubo T, Kato M, Fujiwara Y, Shimomura A, Koyama T, Kakishima H, Kitami M, Matsushita H, Furukawa E, Narushima D, Nagai M, Taniguchi H, Motoi N, Sekine S, Maeshima A, Mori T, Watanabe R, Yoshida M, Yoshida A, Yoshida H, Satomi K, Sukeda A, Hashimoto T, Shimizu T, Iwasa S, Yonemori K, Kato K, Morizane C, Ogawa C, Tanabe N, Sugano K, Hiraoka N, Tamura K, Yoshida T, Fujiwara Y, Ochiai A, Yamamoto N, Kohno T. Feasibility and utility of a panel testing for 114 cancer-associated genes in a clinical setting: A hospital-based study. Cancer Sci 2019; 110:1480-1490. [PMID: 30742731 PMCID: PMC6447843 DOI: 10.1111/cas.13969] [Citation(s) in RCA: 186] [Impact Index Per Article: 37.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Revised: 01/21/2019] [Accepted: 02/06/2019] [Indexed: 12/12/2022] Open
Abstract
Next-generation sequencing (NGS) of tumor tissue (ie, clinical sequencing) can guide clinical management by providing information about actionable gene aberrations that have diagnostic and therapeutic significance. Here, we undertook a hospital-based prospective study (TOP-GEAR project, 2nd stage) to investigate the feasibility and utility of NGS-based analysis of 114 cancer-associated genes (the NCC Oncopanel test). We examined 230 cases (comprising more than 30 tumor types) of advanced solid tumors, all of which were matched with nontumor samples. Gene profiling data were obtained for 187 cases (81.3%), 111 (59.4%) of which harbored actionable gene aberrations according to the Clinical Practice Guidelines for Next Generation Sequencing in Cancer Diagnosis and Treatment (Edition 1.0) issued by 3 major Japanese cancer-related societies. Twenty-five (13.3%) cases have since received molecular-targeted therapy according to their gene aberrations. These results indicate the utility of tumor-profiling multiplex gene panel testing in a clinical setting in Japan. This study is registered with UMIN Clinical Trials Registry (UMIN 000011141).
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18
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Tanabe N, Go K, Sakurada Y, Imasawa M, Mabuchi F, Chiba T, Abe K, Kashiwagi K. A Remote Operating Slit Lamp Microscope System. Methods Inf Med 2018; 50:427-34. [DOI: 10.3414/me10-01-0064] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2010] [Accepted: 10/18/2010] [Indexed: 11/09/2022]
Abstract
SummaryObjectives: To develop a remote-operating slit lamp microscope system (the remote slit lamp) as the core for highly specialized ophthalmology diagnoses, and to compare the utility of this system with the conventional slit lamp microscope system (the conventional slit lamp) in making a diagnosis.Methods: The remote slit lamp system was developed. Three factors were evaluated in comparison to the conventional slit lamp. The ability to acquire skills was investigated using a task loading system among specialists and residents in ophthalmology. Participants repeated a task up to ten times and the time required for each task was analyzed. The consistency of the two systems in making a diagnosis was investigated using eyes of patients with ocular diseases as well as healthy volunteers.Results: The remote slit lamp is composed of a patient’s unit and ophthalmologist’s unit connected by high-speed internet. The two units share images acquired by the slit lamp in addition to the images and voices of patients and ophthalmologists. Both ophthalmology specialists and residents could minimize the completion times after several trials. The remote slit lamp took more time than the conventional slit lamp. Both systems showed a high consistency in evaluations among eyes with healthy eyes or those with ocular diseases.Conclusions: The remote slit lamp has a similar diagnostic ability, but required more examination time in comparison to the conventional slit lamp. The currently developed remote slit lamp has the potential to be employed for telemedicine purposes in the field of ophthalmology.
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Saeki S, Tanabe N, Taguchi S, Nakagawa M, Ooiwa H, Yuasa T, Yasumoto A, Nakasima K, Nagatomi C, Andou H, Higa T, Fujikake A, Fukuoka T, Tokui K, Okada Y, Niwa J, Nakao N, Izumi M, Douyuu M. The cerebral blood flow dynamism depending on antiparkinson drug. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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20
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Taguchi S, Tanabe N, Saeki S, Yuasa T, Ooiwa H, Nakagawa M, Nagatomi C, Nakashima K, Yasumoto A, Ando H, Higa T, Tsunoda Y, Fujikake A, Fukuoka T, Tokui K, Okada Y, Niwa J, Izumi M, Nakao N, Doyu M. Spect findings in Parkinsonian patients: A clinical indicator of antiparkinsonian drug efficacy. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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21
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Yuasa T, Tanabe N, Taguchi S, Saeki S, Ooiwa H, Nakagawa M, Nagatomi C, Yasumoto A, Ando H, Higa T, Fujikake A, Fukuoka T, Tokui K, Okada Y, Niwa J, Izumi M, Nakao N, Doyu M. The association of clinical features and cerebral blood flow in Parkinson’s disease. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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22
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Nagasawa T, Azuma M, Aki M, Yamada M, Ushiama M, Tanabe N, Nakajima T, Sugano K, Sakamoto H, Yoshida T. System Development Aiming Efficient Recording of Pedigree Information and Database Construction for Genetic Counseling Clinic. Stud Health Technol Inform 2017; 245:1278. [PMID: 29295363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In the collaborative research to support genomic medicine, we aim to improve the efficiency of operation such as prevention of hereditary cancer syndromes. In the present work, we built a prototype system to record a pedigree chart, clinical and genetic information on individuals during a genetic counseling session. In a mock examination, we were able to draw the pedigree chart of four generations in about four minutes and to record necessary information without disrupting conversation with counselees.
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Affiliation(s)
| | | | | | | | - Mineko Ushiama
- Division of Genetics, National Cancer Center Research Institute, Tokyo, Japan
| | - Noriko Tanabe
- Department of Genetic Medicine and Services, National Cancer Center Hospital, Tokyo, Japan
| | - Takeshi Nakajima
- Department of Endoscopy, National Cancer Center Hospital, Tokyo, Japan
| | - Kokichi Sugano
- Department of Genetic Medicine and Services, National Cancer Center Hospital, Tokyo, Japan
| | - Hiromi Sakamoto
- Division of Genetics, National Cancer Center Research Institute, Tokyo, Japan
| | - Teruhiko Yoshida
- Division of Genetics, National Cancer Center Research Institute, Tokyo, Japan
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Oikawa T, Maeda H, Oguchi T, Yamaguchi T, Tanabe N, Ebana K, Yano M, Ebitani T, Izawa T. The Birth of a Black Rice Gene and Its Local Spread by Introgression. Plant Cell 2015; 27:2401-14. [PMID: 26362607 PMCID: PMC4815089 DOI: 10.1105/tpc.15.00310] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Revised: 08/14/2015] [Accepted: 08/26/2015] [Indexed: 05/20/2023]
Abstract
The origin and spread of novel agronomic traits during crop domestication are complex events in plant evolution. Wild rice (Oryza rufipogon) has red grains due to the accumulation of proanthocyanidins, whereas most cultivated rice (Oryza sativa) varieties have white grains induced by a defective allele in the Rc basic helix-loop-helix (bHLH) gene. Although the events surrounding the origin and spread of black rice traits remain unknown, varieties with black grains due to anthocyanin accumulation are distributed in various locations throughout Asia. Here, we show that the black grain trait originated from ectopic expression of the Kala4 bHLH gene due to rearrangement in the promoter region. Both the Rc and Kala4 genes activate upstream flavonol biosynthesis genes, such as chalcone synthase and dihydroflavonol-4-reductase, and downstream genes, such as leucoanthocyanidin reductase and leucoanthocyanidin dioxygenase, to produce the respective specific pigments. Genome analysis of 21 black rice varieties as well as red- and white-grained landraces demonstrated that black rice arose in tropical japonica and its subsequent spread to the indica subspecies can be attributed to the causal alleles of Kala4. The relatively small size of genomic fragments of tropical japonica origin in some indica varieties indicates that refined introgression must have occurred by natural crossbreeding in the course of evolution of the black trait in rice.
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Affiliation(s)
- Tetsuo Oikawa
- Functional Plant Research Unit, National Institute of Agrobiological Sciences, Tsukuba, Ibaraki 305-8602, Japan
| | - Hiroaki Maeda
- Toyama Prefectural Agricultural, Forestry and Fisheries Research Center, Toyama, Toyama 939-8153, Japan
| | - Taichi Oguchi
- Functional Plant Research Unit, National Institute of Agrobiological Sciences, Tsukuba, Ibaraki 305-8602, Japan
| | - Takuya Yamaguchi
- Toyama Prefectural Agricultural, Forestry and Fisheries Research Center, Toyama, Toyama 939-8153, Japan
| | - Noriko Tanabe
- Functional Plant Research Unit, National Institute of Agrobiological Sciences, Tsukuba, Ibaraki 305-8602, Japan
| | - Kaworu Ebana
- Rice Applied Genomics Research Unit, National Institute of Agrobiological Sciences, Tsukuba, Ibaraki 305-8602, Japan
| | - Masahiro Yano
- Rice Applied Genomics Research Unit, National Institute of Agrobiological Sciences, Tsukuba, Ibaraki 305-8602, Japan
| | - Takeshi Ebitani
- Toyama Prefectural Agricultural, Forestry and Fisheries Research Center, Toyama, Toyama 939-8153, Japan
| | - Takeshi Izawa
- Functional Plant Research Unit, National Institute of Agrobiological Sciences, Tsukuba, Ibaraki 305-8602, Japan
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Kuroda T, Tanabe N, Sato H, Nakatsue T, Wada Y, Nakano M, Narita I. SAT0427 Clinical Background Factors Related to Silent Osteonecrosis of the Femoral Head Upon Initiation of Steroid Therapy in Patients with Systemic Lupus Erythmatosus. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.4372] [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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25
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Tanabe N, Shikama A, Bando H, Satoh T, Shimizu C. A survey of the practice patterns of gynecologic oncologists dealing with hereditary cancer patients in Japan. Fam Cancer 2014; 13:489-98. [PMID: 24853694 DOI: 10.1007/s10689-014-9719-2] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Hereditary breast and ovarian cancer syndrome (HBOC) is a significant type of familial ovarian cancer. A survey of gynecologic oncologists was conducted in order to characterize the state of care and awareness of information provision for HBOC in Japan and to identify information necessary to enhance HBOC care. All gynecologic oncologists certified by the Japan Society of Gynecologic Oncology (JSGO) as specialists in the treatment of ovarian cancer were included. They were sent a 44-question questionnaire dealing with the background of the respondent, the facilities at the respondent's medical institution, how the family history interview is conducted, awareness of and practice behavior toward HBOC, performance of genetic testing, and performance of risk-reducing salpingo-oophorectomy (RRSO). The response rate was 50.1 %. About 60 % of respondents stated that "I administer care with HBOC in mind" and "I want to be involved in the care of HBOC." However, only 2 in 3 doctors was able to explain HBOC to patients, fewer than 1 in 5 doctors was able to give counseling to patients, 1 in 10 doctors provided printed information to patients suspected of having a hereditary cancer, and 1 in 7 doctors recommended that patients suspected of having a hereditary cancer visit the department of genetics. The provision of information to patients, recommending that patients visit the department of genetics, and the performance of genetic testing were dependent on whether a department of genetics was present in the respondent's institution. The survey also found that RRSO is not widely performed in Japan.
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Affiliation(s)
- Noriko Tanabe
- Department of Medical Psychology, Pharmaceutical Education Research Center, Kitasato University School of Pharmacy, Tokyo, Japan
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Ozawa K, Funabashi N, Kataoka A, Yanagawa N, Tanabe N, Tatsumi K, Kobayashi Y. Two dimensional global longitudinal strain of right ventricle using transthoracic echocardiography can detect right ventricular fibrosis confirmed by 320 slice CT in pulmonary hypertension. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht309.3632] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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27
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Ozawa K, Funabashi N, Kataoka A, Yanagawa N, Tanabe N, Tatsumi K, Kobayashi Y. Diagnosis of right ventricular myocardial fibrosis using right ventricular myocardial CT attenuation, wall thickness and motion on ECG-gated 320 slice CT in subjects with pulmonary hypertension. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht307.p232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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28
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Ozawa K, Funabashi N, Kataoka A, Yanagawa N, Tanabe N, Tatsumi K, Kobayashi Y. Comprehensive evaluation of right ventricular myocardium on ECG-gated 320 slice CT: morphological and functional information and their prognostic values in subjects with pulmonary hypertension. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht310.p4712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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29
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Ozawa K, Funabashi N, Kataoka A, Yanagawa N, Tanabe N, Tatsumi K, Kobayashi Y. Two and 3-dimensional global longitudinal strain of right ventricular free wall using transthoracic echocardiography could be an accurate indicator of 3-dimensional right ventricular systolic function. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht309.3628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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30
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Fujisawa M, Kanemura K, Tanabe N, Gohdo Y, Watanabe A, Iizuka T, Sato M, Ishibashi K. Determination of daytime clenching events in subjects with and without self-reported clenching. J Oral Rehabil 2013; 40:731-6. [DOI: 10.1111/joor.12087] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/30/2013] [Indexed: 11/29/2022]
Affiliation(s)
- M. Fujisawa
- Division of Fixed Prosthodontics; Department of Restorative & Biomaterials Sciences; School of Dentistry; Meikai University; Sakado Japan
| | - K. Kanemura
- Department of Prosthodontics and Implantology; School of Dentistry; Iwate Medical University; Morioka Japan
| | - N. Tanabe
- Department of Prosthodontics and Implantology; School of Dentistry; Iwate Medical University; Morioka Japan
| | | | - A. Watanabe
- Division of Fixed Prosthodontics; Department of Restorative & Biomaterials Sciences; School of Dentistry; Meikai University; Sakado Japan
| | - T. Iizuka
- Division of Fixed Prosthodontics; Department of Restorative & Biomaterials Sciences; School of Dentistry; Meikai University; Sakado Japan
| | - M. Sato
- Division of Fixed Prosthodontics; Department of Restorative & Biomaterials Sciences; School of Dentistry; Meikai University; Sakado Japan
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Kitamura A, Takiguchi Y, Kurosu K, Takigawa N, Saegusa F, Hiroshima K, Nakajima T, Tanabe N, Nakatani Y, Yoshino I, Tatsumi K. Feasibility of cytological diagnosis of sarcoidosis with endobronchial US-guided transbronchial aspiration. Sarcoidosis Vasc Diffuse Lung Dis 2012; 29:82-89. [PMID: 23461069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
BACKGROUND Endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) has a high diagnostic value in sarcoidosis if the obtained histological specimen is indicative of a non-caseating epithelioid-cell granuloma. However, EBUS-TBNA in sacoidosis sometimes affords solely cytological specimens. OBJECTIVE To investigate the relevance of EBUS-TBNA cytology specimens in diagnosing sarcoidosis. DESIGN The study population comprised 72 patients with sarcoidosis and 116 patients who had thoracic malignancies and intrathoracic lymphadenopathy but were eventually proven to be metastasis-free (controls). The EBUS-TBNA samples obtained for these subjects were blindly evaluated for the presence of epithelioid cell clusters by 2 independent cytoscreeners and a pathologist. RESULTS Interobserver variability in the specimen grading was minimal. The sensitivity and specificity were 65.3% and 94.0%, respectively. The sensitivity was high, at 87.5%, for the combined cytological and histological examinations. Of 7 controls whose cytological specimens showed epithelioid cell clusters, 3 were also deemed positive for sarcoidosis on histological examination, which indicated that they had sarcoid reaction to cancer. CONCLUSIONS Cytological evaluation of the EBUS-TBNA specimens had higher sensitivity than histological evaluation alone for intrathoracic lymphadenopathy due to sarcoidosis. It should be recognized, however, that up to 6% of patients with thoracic malignancy may have sarcoid reaction in non-metastatic lymph nodes.
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Affiliation(s)
- A Kitamura
- Department of Respirology, Graduate School of Medicine, Chiba University, Japan
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Sato H, Kuroda T, Tanabe N, Ajiro J, Wada Y, Murakami S, Sakatsume M, Nakano M, Gejyo F. Cystatin C is a sensitive marker for detecting a reduced glomerular filtration rate when assessing chronic kidney disease in patients with rheumatoid arthritis and secondary amyloidosis. Scand J Rheumatol 2010; 39:33-7. [DOI: 10.3109/03009740903042402] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [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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Tanabe N, Iso H, Seki N, Suzuki H, Yatsuya H, Toyoshima H, Tamakoshi A. Daytime napping and mortality, with a special reference to cardiovascular disease: the JACC study. Int J Epidemiol 2009; 39:233-43. [DOI: 10.1093/ije/dyp327] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Hama S, Takeichi O, Fujisaki K, Tanabe N, Maeno M, Ochiai K. Nitric oxide attenuates vascular endothelial cadherin-mediated vascular integrity in human chronic inflammation. Clin Exp Immunol 2009; 154:384-90. [PMID: 19037921 DOI: 10.1111/j.1365-2249.2008.03789.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
In this study, we examined the role of nitric oxide (NO) in controlling vascular integrity mediated by vascular endothelial (VE)-cadherin in chronic inflammation. Periapical granulomas were analysed for the expression of inducible NO synthase (iNOS) and VE-cadherin, and more iNOS expression than VE-cadherin was shown. Human umbilical vein endothelial cells (HUVECs) were stimulated with proinflammatory cytokines and lipopolysaccharide extracted from Porphyromonas gingivalis and it induced iNOS expression, whereas it reduced VE-cadherin expression, compared with negative controls. On the other hand, pre-incubation with 1400W, an iNOS-specific inhibitor, markedly reduced iNOS expression in stimulated HUVECs and restored VE-cadherin expression to its control level, suggesting that vascular integrity was modulated in conjunction with the reduction of NO. Immunocytochemistry confirmed the functional role of NO in cultured HUVEC monolayers with or without 1400W. These data are consistent with a hypothesis suggesting that NO could attenuate VE-cadherin-mediated vascular integrity in human chronic inflammation.
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Affiliation(s)
- S Hama
- Department of Endodontics, Nihon University School of Dentistry, Tokyo, Japan
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35
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Sato H, Kuroda T, Tanabe N, Ajiro J, Wada Y, Murakami S, Sakatsume M, Nakano M, Gejyo F. Cystatin C is a sensitive marker for detecting a reduced glomerular filtration rate when assessing chronic kidney disease in patients with rheumatoid arthritis and secondary amyloidosis. Scand J Rheumatol Suppl 2009. [DOI: 10.1080/03009740903042402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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36
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Tanabe N, Suzuki H, Aizawa Y, Seki N. Consumption of green and roasted teas and the risk of stroke incidence: results from the Tokamachi-Nakasato cohort study in Japan. Int J Epidemiol 2008; 37:1030-40. [DOI: 10.1093/ije/dyn211] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
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Mukai H, Takata N, Ishii HT, Tanabe N, Hojo Y, Furukawa A, Kimoto T, Kawato S. Hippocampal synthesis of estrogens and androgens which are paracrine modulators of synaptic plasticity: synaptocrinology. Neuroscience 2005; 138:757-64. [PMID: 16310315 DOI: 10.1016/j.neuroscience.2005.09.010] [Citation(s) in RCA: 90] [Impact Index Per Article: 4.7] [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: 05/30/2005] [Revised: 08/18/2005] [Accepted: 09/08/2005] [Indexed: 01/04/2023]
Abstract
Hippocampal pyramidal neurons and granule neurons of adult male rats are equipped with a complete machinery for the synthesis of pregnenolone, dehydroepiandrosterone, testosterone, dihydrotestosterone and 17beta-estradiol. Both estrogens and androgens are synthesized in male hippocampus. These brain steroids are synthesized by cytochrome P450s (P450scc, P45017alpha and P450arom), hydroxysteroid dehydrogenases and reductases from endogenous cholesterol. The expression levels of enzymes are as low as 1/300-1/1000 of those in endocrine organs. Synthesis is dependent on the acute Ca(2+) influx upon neuron-neuron communication via NMDA receptors. Estradiol is particularly important because estradiol rapidly modulates neuronal synaptic transmission such as long-term potentiation via synaptic estrogen receptors. Xenoestrogens may also act via estrogen-driven signaling pathways.
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Affiliation(s)
- H Mukai
- Department of Biophysics and Life Sciences, Graduate School of Arts and Sciences, The University of Tokyo at Komaba, Meguro, Japan
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Wada Y, Kuroda T, Murasawa A, Tanabe N, Nakano M, Gejyo F. Autoantibodies against oxidized low-density lipoprotein (LDL) and carotid atherosclerosis in patients with rheumatoid arthritis. Clin Exp Rheumatol 2005; 23:482-6. [PMID: 16095116] [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: 05/03/2023]
Abstract
OBJECTIVES To examine the relationship between autoantibodies against oxidized low-density lipoprotein (oxLDL-Abs) and the progression of carotid atherosclerosis in patients with rheumatoid arthritis (RA). METHODS Fifty RA patients without evidence of risk factors for atherosclerosis (RA group) and 30 healthy volunteers (normal group) were investigated. The mean intima-media thickness of the common carotid artery (mean CCA-IMT) was measured by high-resolution B-mode ultrasonography. The titer of IgG oxLDL-Abs was measured by enzyme-linked immunosorbent assay. The relationships among mean CCA-IMT, IgG oxLDL-Ab titer and patient factors such as body mass index, systolic blood pressure, diastolic blood pressure, C-reactive protein (CRP), erythrocyte sedimentation rate (ESR), and serum lipid levels were examined. RESULTS Mean CCA-IMT, CRP, ESR and titer of IgG oxLDL-Abs were significantly higher in the RA group than in the normal group. Although mean CCA-IMT showed a positive correlation only with age in multivariate analysis, IgG oxLDL-Ab titers in the RA group were positively associated with mean CCA-IMT and independently with age and sex by multiple regression analysis. CONCLUSIONS IgG oxLDL-Abs appear to be associated with the degree of carotid atherosclerosis in patients with RA, and are independent of traditional risk factors for atherosclerotic diseases. These results suggest a possible link between autoimmune mechanisms and accelerated atherosclerosis in RA.
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Affiliation(s)
- Y Wada
- Division of Clinical Nephrology and Rheumatology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan.
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Nakayama A, Ogiso B, Tanabe N, Takeichi O, Matsuzaka K, Inoue T. Behaviour of bone marrow osteoblast-like cells on mineral trioxide aggregate: morphology and expression of type I collagen and bone-related protein mRNAs. Int Endod J 2005; 38:203-10. [PMID: 15810969 DOI: 10.1111/j.1365-2591.2004.00917.x] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [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: 12/01/2022]
Abstract
AIM To investigate the in vitro behaviour of rat bone marrow cells (RBM) on mineral trioxide aggregate (MTA) (ProRoot, MTA Root Canal Repair Material; Dentsply Tulsa, Tulsa, OK, USA) compared with intermediate restorative materials (IRM) (Dentsply Caulk, Milford, DE, USA). METHODOLOGY RBM were obtained from rat femur and were primary cultured and then subcultured. Cells were then seeded on three dishes of each material, and cultured for 3 days, after which they were evaluated morphologically using scanning (SEM) and transmission (TEM) electron microscopy. Furthermore, the calcium released from hydrated material, the cell proliferation ratio and alkaline phosphatase (ALP) activity were analysed, and the expression of type I collagen and bone-related protein mRNAs were evaluated. The data were averaged and analysed via one-way analysis of variance (anova) and were then compared by the Scheffe's test. RESULTS SEM showed that RBM attached to MTA and had a flattened appearance without nuclear protrusions and microspikes. TEM showed that the cells attached in the same manner as the control group, but gaps larger than 2 microm were frequently seen. The calcium released from hydrated MTA was about 130 ppm after 3 days of immersion in saline. The ALP activity was similar to the control group. Cell proliferation and expression of type I collagen mRNA was significantly lower, while the expression of osteopontin mRNA was significantly higher than the control group at the third day of culture. In IRM groups, a few rounded cells were observed on the material but no living cells were seen. CONCLUSIONS MTA is a material of low toxicity which does not inhibit cell growth, but does suppress the differentiation of osteoblast-like cells.
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Affiliation(s)
- A Nakayama
- Department of Endodontics, Nihon University School of Dentistry, Tokyo, Japan
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40
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Tanabe N, Tsurugizawa T, Komatsuzaki Y, Mitsuhashi K, Ogiue-Ikeda M, Kimoto T, Kawato T. 1P245 Bisphenol-A acutely induces morphological changes of dendritic spine structure in rat hippocampal CA1 pyramidal neurons. ACTA ACUST UNITED AC 2005. [DOI: 10.2142/biophys.45.s93_1] [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: 12/01/2022]
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Tanabe N, Kimura A, Amano S, Okada O, Kasahara Y, Tatsumi K, Takahashi M, Shibata H, Yasunami M, Kuriyama T. Association of clinical features with HLA in chronic pulmonary thromboembolism. Eur Respir J 2005; 25:131-8. [PMID: 15640334 DOI: 10.1183/09031936.04.00042304] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.2] [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: 11/05/2022]
Abstract
The aetiology of chronic thromboembolic pulmonary hypertension (CTEPH) is largely unknown and may be heterogeneous, because there are several ethnic differences in the clinical characteristics of CTEPH. Female predominance and a higher ratio of chronic to acute pulmonary thromboembolism have been reported in Japan as compared with the USA. Because such ethnic differences may be controlled by genetic factors, the current study investigated HLA polymorphisms in Japanese patients with CTEPH. HLA typing by serological and/or DNA typing methods was performed (for HLA-A, B, DPB1, DRB1) in 80 patients and 678 controls, and the association of clinical characteristics with HLA alleles was studied. The frequencies of HLA-B*5201 (40 versus 24%) and DPB1*0202 (19 versus 6%) were significantly higher in the patients. HLA-B*5201 positive patients showed a significant female predominance. Total pulmonary vascular resistance and mixed venous oxygen tension were better in the HLA-B*5201 positive patients. In contrast, cardiac index and gas exchange parameters were worse in the HLA-DPB1*0202 positive patients. In the patients carrying HLA-B*5201 and/or -DPB1*0202, the frequency of deep vein thrombosis was significantly lower than the other patients. These observations suggested that both the susceptibility and clinical characteristics of chronic thromboembolic pulmonary hypertension were controlled in part by the HLA-B and -DPB1 loci.
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Affiliation(s)
- N Tanabe
- Dept of Respirology, Graduate School of Medicine, Chiba University, 1-8-1 Inohana Chuou-ku, Chiba 260-8670, Japan.
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Kamiyama M, Furuya Y, Takihana Y, Araki I, Tanabe N, Takeda M. Anandamide and capsaicin inhibit proliferation of human prostate cancer cell via cannabinoid receptor and vanilloid receptor respectively. ACTA ACUST UNITED AC 2003. [DOI: 10.1016/s1569-9056(03)80141-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [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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Watanabe R, Takiguchi Y, Moriya T, Oda S, Kurosu K, Tanabe N, Tatsumi K, Nagao K, Kuriyama T. Feasibility of combination chemotherapy with cisplatin and etoposide for haemodialysis patients with lung cancer. Br J Cancer 2003; 88:25-30. [PMID: 12556954 PMCID: PMC2376779 DOI: 10.1038/sj.bjc.6600687] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Cancer chemotherapy for haemodialysis patients has never been established. To elucidate the feasibility of cisplatin-based combination chemotherapy for haemodialysis patients with lung cancer, a dose escalation study was conducted. Five haemodialysis patients with lung cancer were treated with cisplatin and etoposide. A starting dose of 40 mg m(-2) of cisplatin on day 1 and 50 mg m(-2) of etoposide on days 1, 3 and 5 were administered as the first course for the first patient. Membrane haemodialysis was regularly performed three times a week and soon after the completion of therapy. By monitoring toxicity and pharmacokinetics data, the dose was escalated course by course and patient by patient. Dose escalation was completed for the first two patients resulting in full-dose chemotherapy consisting of 80 mg m(-2) of cisplatin on day 1 and 100 mg m(-2) of etoposide on days 1, 3 and 5. Multiple courses of the full-dose chemotherapy were administered to the other three patients. Toxicity was manageable and tolerable for all. Pharmacokinetics data were comparable to those from patients with normal renal function, except for potential long-lasting higher levels of free platinum in the renal insufficiency group. In conclusion, this standard-dose combination chemotherapy was feasible even for haemodialysis patients.
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Affiliation(s)
- R Watanabe
- Department of Respirology (B2), Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
| | - Y Takiguchi
- Department of Respirology (B2), Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
- Department of Respirology (B2), Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan. E-mail:
| | - T Moriya
- Department of Respirology (B2), Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
| | - S Oda
- Department of Emergency and Critical Care Medicine (J3), Graduate School of Medicine, Chiba University, Chiba, Japan
| | - K Kurosu
- Department of Respirology (B2), Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
| | - N Tanabe
- Department of Respirology (B2), Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
| | - K Tatsumi
- Department of Respirology (B2), Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
| | - K Nagao
- Health Sciences Center, Chiba University, Chiba, Japan
| | - T Kuriyama
- Department of Respirology (B2), Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
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Nerome R, Nerome K, Tanabe N, Lindstrom SE, Shinjo M, Taniguchi S, Kasai K. Perspectives on the characteristics and achievements of recent surveillance of influenza activity in Japan. Vaccine 2002; 20 Suppl 2:S36-43. [PMID: 12110254 DOI: 10.1016/s0264-410x(02)00127-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- R Nerome
- National Institute of Infectious Diseases, 23-1 Toyama 1-chome, Shinjuku-ku, Tokyo, Japan
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Kuroda T, Tanabe N, Sakatsume M, Nozawa S, Mitsuka T, Ishikawa H, Tohyama CT, Nakazono K, Murasawa A, Nakano M, Gejyo F. Comparison of gastroduodenal, renal and abdominal fat biopsies for diagnosing amyloidosis in rheumatoid arthritis. Clin Rheumatol 2002; 21:123-8. [PMID: 12086162 DOI: 10.1007/pl00011217] [Citation(s) in RCA: 40] [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] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The aim of the study was to determine the frequency of amyloidosis detected by gastroduodenal biopsy in rheumatoid arthritis (RA) patients, and to investigate correlations between the results of gastroduodenal biopsy and abdominal fat and renal biopsies. A total of consecutive 1006 RA patients underwent gastroduodenal biopsy. The 71 patients who tested positive for gastrointestinal (GI) amyloidosis were asked to undergo renal and abdominal fat biopsies, and 21 did so. Renal biopsies were also performed on 12 patients with no amyloidosis but indicators of drug-induced renal damage, and abdominal fat biopsies were performed on 50 RA patients with no indication of amyloidosis. The prevalence of GI amyloidosis was 7.1%. Urinary abnormalities and GI symptoms were common in GI amyloidisis, and inflammatory markers were elevated. Sixty-one (86%) had either depressed creatinine clearance or urinary symptoms. Nineteen of the 21 patients (91%) with GI amyloidosis who underwent renal biopsies also had renal amyloid deposits. Eleven of the 21 (52%) had amyloidosis on abdominal fat biopsy. None of the 12 patients without GI amyloidosis had renal amyloidosis on renal biopsy, and none of the 50 patients without GI amyloidosis had amyloidosis on abdominal fat biopsy. Gastroduodenal biopsy reveals a high prevalence of amyloidosis in RA patients. Amyloidosis is often associated with signs of renal impairment. Results of GI biopsy are highly correlated with those of renal biopsy, but the results of fat biopsy are not. We recommend GI biopsy for RA patients for the screening of systemic amyloidosis.
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Affiliation(s)
- T Kuroda
- Department of Medicine, Niigata University School of Medicine, Japan.
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Kuroda T, Tanabe N, Sakatsume M, Nozawa S, Mitsuka T, Ishikawa H, Tohyama CT, Nakazono K, Murasawa A, Nakano M, Gejyo F. Interleukin-2 levels are elevated in the bone marrow serum of patients with mutilans-type rheumatoid arthritis. Clin Rheumatol 2002; 21:23-7. [PMID: 11954879 DOI: 10.1007/s100670200006] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [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: 01/16/2023]
Abstract
In order to investigate the pathogenesis of mutilans-type rheumatoid arthritis (RA), we measured cytokine levels in the bone marrow serum of patients with RA. We studied 35 patients with non-mutilans RA, 19 with mutilans RA, and 20 patients with osteoarthritis (OA) undergoing joint surgery. At the time of surgery, iliac bone marrow and peripheral blood were sampled from all 74 patients and cytokine levels measured. The serum levels of five cytokines (IL-1beta, IL-2, IL-3, IL-6 and GM-CSF) were measured by ELISA. Haematologic and inflammatory factors were also measured. Levels of IL-2, IL-6 and GM-CSF in bone marrow serum were significantly higher in all RA patients than in those with OA. Mean (+/-SD) IL-2 levels were significantly higher in patients with mutilans-type RA (309.8+/-686.3 pg/ml) than in patients with other types of RA (66.5+/-173.1 pg/ml; P<0.01). IL-2 was detected significantly more often in patients with mutilans-type RA than in patients with other types of RA (P < 0.01). Inflammatory factors were higher in all RA groups than in OA patients. However, the haematologic and immunologic variables were no different between mutilans RA and other types of RA. No correlations were observed between IL-1beta, IL-2, IL-3, IL-6 and GM-CSF levels and these laboratory variables. In patients with mutilans-type RA, IL-2 levels in the bone marrow serum were significantly higher than in patients with other types of RA or with OA. This elevation does not appear to be related to systemic inflammation, as there was no correlation with other inflammatory factors.
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Affiliation(s)
- T Kuroda
- Department of Medicine (II), Niigata University School of Medicine, Japan.
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Watanabe A, Kawabata Y, Okada O, Tanabe N, Kimura H, Hatamochi A, Shinkai H, Sakai N, Shimada T, Hiroshima K, Kuriyama T. Ehlers-Danlos syndrome type IV with few extrathoracic findings: a newly recognized point mutation in the COL3A1 gene. Eur Respir J 2002; 19:195-8. [PMID: 11843319 DOI: 10.1183/09031936.02.00219202] [Citation(s) in RCA: 33] [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: 11/05/2022]
Abstract
Ehlers-Danlos syndrome type IV (EDS IV) is caused by mutation within the COL3AI gene, resulting in the disorder of type III procollagen. The diagnosis is confirmed by demonstrating the synthesis of abnormal type III procollagen molecules from cultured dermal fibroblasts or by identifying the mutation in the COL3A1 gene. The authors report a case of EDS IV caused by a novel point mutation in the COL3A1 gene in a 16-yr-old female. Recurrent haemoptysis and cavitary formation of the lung were evidence of pulmonary involvement. However, extrathoracic manifestations of EDS IV were mostly absent. To the best of the authors' knowledge, all previously reported Ehlers-Danlos syndrome IV patients with respiratory disease had the characteristic findings or histories of Ehlers-Danlos syndrome IV. In the present case, connective tissue friability was suspected due to tissue laceration observed in the biopsied lung specimen, and the diagnosis was made beginning from this pivotal finding.
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Affiliation(s)
- A Watanabe
- Dept of Respirology, Graduate School of Medicine, Chiba University, Chiba City, Japan
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Kimura H, Okada O, Tanabe N, Tanaka Y, Terai M, Takiguchi Y, Masuda M, Nakajima N, Hiroshima K, Inadera H, Matsushima K, Kuriyama T. Plasma monocyte chemoattractant protein-1 and pulmonary vascular resistance in chronic thromboembolic pulmonary hypertension. Am J Respir Crit Care Med 2001; 164:319-24. [PMID: 11463608 DOI: 10.1164/ajrccm.164.2.2006154] [Citation(s) in RCA: 94] [Impact Index Per Article: 4.1] [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: 11/16/2022] Open
Abstract
The pathogenesis of severe pulmonary hypertension seems to be related to inflammatory response in diseased sites. Monocyte chemoattractant protein-1 (MCP-1) has been reported to play a role in the development of congestive heart failure. In this immunological response, activation and migration of leukocytes including macrophages to the inflammatory region are important factors. We hypothesized that the severity of pulmonary hypertension may be related to MCP-1, which is thought to be upregulated by blood pressure or shear stress in pulmonary vasculature as well as by immunological and inflammatory reactions in chronic thromboembolic pulmonary hypertension (CTEPH). Circulating levels of MCP-1, interleukin-1beta (IL-1beta), and tumor necrosis factor-alpha (TNF-alpha) were measured by sandwich ELISA in 14 patients with CTEPH. The plasma level of MCP-1 was significantly correlated with pulmonary vascular resistance. In IL-1beta and TNF-alpha, on the other hand, there was no correlation between cytokines and pulmonary hemodynamics. Pathological specimens obtained from the patients with CTEPH undergoing thromboendarterectomy demonstrated immunoreactivity of MCP-1 in endothelium, smooth muscle cells, and macrophages within neointima in the hypertensive large elastic pulmonary artery. We conclude that MCP-1 is upregulated in the remodeling of pulmonary arteries in close association with increased pulmonary vascular resistance in CTEPH.
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Affiliation(s)
- H Kimura
- Department of Chest Medicine, Institute of Pulmonary Cancer Research, Chiba University School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba 260-8679, Japan.
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Tanabe N, Okada O, Abe Y, Masuda M, Nakajima N, Kuriyama T. The influence of fractional pulse pressure on the outcome of pulmonary thromboendarterectomy. Eur Respir J 2001; 17:653-9. [PMID: 11401060 DOI: 10.1183/09031936.01.17406530] [Citation(s) in RCA: 16] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Although pulmonary thromboendarterectomy is an effective modality for the treatment of chronic thromboembolic pulmonary hypertension (CTEPH), the mortality in patients with severe haemodynamic disease is still high. Recently it was reported that fractional pulse pressure (pulmonary arterial pulse pressure/mean pulmonary arterial pressure) was higher in CTEPH than in primary pulmonary hypertension (PPH). It was hypothesized that fractional pulse pressure might be low in CTEPH with inaccessible distal thrombi and/or secondary pulmonary hypertensive change, resulting to the high operative mortality. To determine the influence of fractional pulse pressure to the outcome of surgery, 32 patients with CTEPH who had thromboendarterectomy between 1985 and 1998 were studied. Pulmonary haemodynamics and fractional pulse pressure were compared between survivors (n=26) and nonsurvivors (n=6) postoperatively. Those parameters in PPH (n=18) and large vessel pulmonary arteritis (n=6) were also analysed. Fractional pulse pressure in CTEPH (1.23+/-0.21) was significantly higher than in PPH (0.93+/-0.22; p=0.0017) and lower than in pulmonary arteritis (1.69+/-0.32; p=0.03). Fractional pulse pressure in survivors (1.26+/-0.21) was significantly higher than in nonsurvivors (1.06+/-0.16; p=0.03). Fractional pulse pressure is a significant predictor for mortality in patients with high pulmonary vascular resistance >1100 dynes.sec.cm(-5). To conclude fractional pulse pressure in addition to pulmonary vascular resistance might be useful in predicting for the outcome of surgery, especially in patients with severe haemodynamic impairment.
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Affiliation(s)
- N Tanabe
- Dept of Chest Medicine, Chiba University School of Medicine, Japan
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Watanabe K, Ohta Y, Kouda T, Sekiguchi T, Sato S, Nakazawa M, Hasegawa G, Naito M, Fuse K, Ito M, Hirono S, Tanabe N, Hanawa H, Kato K, Kodama M, Aizawa Y. Acute effects of endothelin-1 and TAK-044 (ET(A) and ET(B) receptor antagonist) in rats with dilated cardiomyopathy. J Cardiovasc Pharmacol 2001; 36 Suppl 2:S49-54. [PMID: 11206720 DOI: 10.1097/00005344-200000006-00011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [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: 01/08/2023]
Abstract
The hemodynamic effects of endothelin (ET)-1 and TAK-044 (ET(A) and ET(B) receptor antagonist) were studied in a rat model of dilated cardiomyopathy after autoimmune myocarditis. Six weeks after immunization, survived Lewis rats (30/43 = 70%) were randomly allocated into five groups to be given 0, 0.3, 3, 30 and 60 mg/kg/day (groups F0, F0.3, F3, F30 and F60; each group, n = 4) of TAK-044 using an osmotic pump subcutaneously. Age-matched normal Lewis rats (n = 26) were also randomly divided into four groups to be given 0, 0.3, 3 and 30 mg/kg/day (groups N0, N0.3, N3 and N30; each group, n = 4). ET-1 concentrations in plasma and myocardium were measured, and immunohistochemical detection of ET-1 in the left ventricle from the remaining rats (groups F and N) was performed. After administration of TAK-044 for 7 days, 2, 4, 11, 21 and 42 ng/min ET-1 every 20 min was infused using a pump, and the change in mean arterial pressure of each group during the infusion was examined. The plasma and myocardial ET-1 concentrations were significantly higher in group F than group N (12.3 +/- 1.5 vs. 5.4 +/- 0.2 pg/ml and 426 +/- 31 vs. 98 +/- 6 pg/g tissue; both p < 0.01). Strong positive signals for ET-1 were found to be widely distributed in the left ventricular myocardium of both groups of rats. Although the ET-1-induced increase in the mean arterial pressure was abolished in group N30, the maximal dose of ET-1 produced a 34% increase in the mean arterial pressure in group F30. Even in group F60, ET-1-induced hypertension was blocked incompletely. These results indicate that the heart may be a major ET-1-producing organ, and a higher dose of ET-1 antagonist is needed to block the effect of ET-1 in rats with dilated cardiomyopathy.
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Affiliation(s)
- K Watanabe
- Department of Clinical Pharmacology, Niigata College of Pharmacy, Niigata City, Japan.
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