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Kurokawa K, Shukuya T, Greenstein RA, Kaplan BG, Wakelee H, Ross JS, Miura K, Furuta K, Kato S, Suh J, Sivakumar S, Sokol ES, Carbone DP, Takahashi K. Genomic characterization of thymic epithelial tumors in a real-world dataset. ESMO Open 2023; 8:101627. [PMID: 37703595 PMCID: PMC10594028 DOI: 10.1016/j.esmoop.2023.101627] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 05/25/2023] [Accepted: 08/02/2023] [Indexed: 09/15/2023] Open
Abstract
BACKGROUND Thymic epithelial tumors (TETs) are rare neoplasms arising in the mediastinum, including thymic carcinomas and thymomas. Due to their rarity, little is known about the genomic profiles of TETs. Herein, we investigated the genomic characteristics of TETs evaluated in a large comprehensive genomic profiling database in a real-world setting. METHODS We included data from two different cohorts: Foundation Medicine Inc. (FMI) in the United States and the Center for Cancer Genomics and Advanced Therapeutics (C-CAT) in Japan. Samples profiled were examined for all classes of alterations in 253 genes targeted across all assays. Tumor mutational burden (TMB) and microsatellite instability (MSI) were also evaluated. RESULTS A total of 794 patients were collected in our study, including 722 cases from FMI and 72 cases from C-CAT. In the FMI data, CDKN2A (39.9%), TP53 (30.2%) and CDKN2B (24.6%) were frequently altered in thymic carcinoma, versus TP53 (7.8%), DNMT3A (6.8%), and CDKN2A (5.8%) in thymoma. TMB-high (≥10 mutations/Mb) and MSI were present in 7.0% and 2.3% of thymic carcinomas, and 1.6% and 0.3% of thymomas, respectively. Within C-CAT data, CDKN2A (38.5%), TP53 (36.5%) and CDKN2B (30.8%) were also frequently altered in thymic carcinoma, while alterations of TSC1, SETD2 and LTK (20.0% each) were found in thymoma. CONCLUSIONS To the best of our knowledge, this is the largest cohort in which genomic alterations, TMB and MSI status of TETs were investigated. Potential targets for treatment previously unbeknownst in TETs are identified in this study, entailing newfound opportunities to advance therapeutic development.
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Affiliation(s)
- K Kurokawa
- Department of Respiratory Medicine, Juntendo University Faculty of Medicine and Graduate School of Medicine, Tokyo, Japan
| | - T Shukuya
- Department of Respiratory Medicine, Juntendo University Faculty of Medicine and Graduate School of Medicine, Tokyo, Japan.
| | | | - B G Kaplan
- Foundation Medicine, Inc., Cambridge, USA
| | - H Wakelee
- Department of Medicine, Division of Oncology, Stanford University, Stanford, USA
| | - J S Ross
- Foundation Medicine, Inc., Cambridge, USA; Departments of Pathology and Urology, Upstate Medical University, Syracuse, USA
| | - K Miura
- Department of Respiratory Medicine, Juntendo University Faculty of Medicine and Graduate School of Medicine, Tokyo, Japan
| | - K Furuta
- Chugai Pharmaceutical Co., Ltd., Tokyo, Japan
| | - S Kato
- Department of Medical Oncology, Juntendo University Faculty of Medicine and Graduate School of Medicine, Tokyo, Japan
| | - J Suh
- Genentech, South San Francisco, USA
| | | | - E S Sokol
- Foundation Medicine, Inc., Cambridge, USA
| | - D P Carbone
- Comprehensive Cancer Center, Division of Medical Oncology, The Ohio State University, Columbus, USA
| | - K Takahashi
- Department of Respiratory Medicine, Juntendo University Faculty of Medicine and Graduate School of Medicine, Tokyo, Japan
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Matsuki T, Yanagi H, Koba T, Aso H, Sakaguchi S, Ito S, Kouyama K, Furuta K, Miyazaki A, Sumitani H, Yokoyama M, Miyamoto S, Fukai M, Hashimoto K, Nii T, Hashimoto H, Fukushima K, Tsujino K, Miki K, Kida H, Kumanogoh A. Comparing the MiniBox™ and the Chestac-8900 ® for pulmonary function testing. Int J Tuberc Lung Dis 2023; 27:709-711. [PMID: 37608481 PMCID: PMC10443784 DOI: 10.5588/ijtld.23.0212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 05/18/2023] [Indexed: 08/24/2023] Open
Affiliation(s)
- T Matsuki
- Departments of Respiratory Medicine, and
| | - H Yanagi
- Departments of Clinical Laboratory, National Hospital Organization Osaka Toneyama Medical Center, Toyonaka, Osaka
| | - T Koba
- Departments of Respiratory Medicine, and
| | - H Aso
- ASTEM Incorporation, Saga
| | - S Sakaguchi
- Departments of Clinical Laboratory, National Hospital Organization Osaka Toneyama Medical Center, Toyonaka, Osaka
| | - S Ito
- Departments of Clinical Laboratory, National Hospital Organization Osaka Toneyama Medical Center, Toyonaka, Osaka
| | - K Kouyama
- Departments of Clinical Laboratory, National Hospital Organization Osaka Toneyama Medical Center, Toyonaka, Osaka
| | - K Furuta
- Departments of Clinical Laboratory, National Hospital Organization Osaka Toneyama Medical Center, Toyonaka, Osaka
| | - A Miyazaki
- Departments of Respiratory Medicine, and
| | - H Sumitani
- Departments of Respiratory Medicine, and
| | - M Yokoyama
- Departments of Respiratory Medicine, and
| | - S Miyamoto
- Departments of Respiratory Medicine, and
| | - M Fukai
- Departments of Respiratory Medicine, and
| | | | - T Nii
- Departments of Respiratory Medicine, and
| | | | - K Fukushima
- Department of Respiratory Medicine and Clinical Immunology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - K Tsujino
- Departments of Respiratory Medicine, and
| | - K Miki
- Departments of Respiratory Medicine, and
| | - H Kida
- Departments of Respiratory Medicine, and
| | - A Kumanogoh
- Department of Respiratory Medicine and Clinical Immunology, Osaka University Graduate School of Medicine, Osaka, Japan
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Furuta K, Horiguchi A, Nakagawa Y, Kambe N, Kogame T. Acquired idiopathic generalized anhidrosis following pembrolizumab treatment. Clin Exp Dermatol 2021; 47:463-465. [PMID: 34610167 DOI: 10.1111/ced.14967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 10/04/2021] [Indexed: 11/30/2022]
Affiliation(s)
- K Furuta
- Department of Dermatology, Shiga General Hospital, Shiga, Japan
| | - A Horiguchi
- Department of Dermatology, Shiga General Hospital, Shiga, Japan
| | - Y Nakagawa
- Department of Dermatology, Shiga General Hospital, Shiga, Japan
| | - N Kambe
- Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - T Kogame
- Department of Dermatology, Shiga General Hospital, Shiga, Japan.,Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
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Maki Y, Furukawa S, Nakayama T, Oohashi M, Shiiba N, Furuta K, Tokunaga S, Sameshima H. Clinical chorioamnionitis criteria are not sufficient for predicting intra-amniotic infection. J Matern Fetal Neonatal Med 2020; 35:52-57. [PMID: 31914822 DOI: 10.1080/14767058.2020.1711725] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Aim: To evaluate the diagnostic performance of three conventional clinical chorioamnionitis criteria; including Gibbs, Lencki, and suspected triple I; for the prediction of intra-amniotic infection.Methods: A retrospective cohort study was conducted using data from three perinatal centers from 2014 to 2018. Patients with preterm labor or premature prelabor rupture of membranes between 22 and 33 weeks of gestation and those who underwent transabdominal amniocentesis to detect intra-amniotic infection were selected. Intra-amniotic infection was defined as a positive amniotic fluid culture for microorganisms, including genital mycoplasmas, plus low glucose level or leukocytosis in amniotic fluid. Sensitivity, specificity, and positive and negative likelihood ratios were calculated to determine the diagnostic performance of each criterion in predicting intra-amniotic infection.Results: Of 99 pregnant women who met the study inclusion criteria, 13 (13.1%) had intra-amniotic infection confirmed by amniocentesis and 86 (86.9%) had no intra-amniotic infection. Maternal characteristics were not significantly different between groups, except for the higher incidence of preterm, prelabor rupture of membranes in pregnant women with intra-amniotic infection (53.8 versus 14%, p < .01). The incidences of clinical chorioamnionitis in the non-IAI and IAI groups were 1 of 86 (1.2%), 1 of 86 (1.2%), 0 of 86 (0%) and 2 of 13 (15.4%), 2 of 13 (15.4%), 2 of 13 (15.4%) according to Gibbs, Lenki, and suspected triple I criteria, respectively. The specificity of the three criteria ranged from 98.8 to 100%; however, the sensitivity was low (15.4%). The positive likelihood ratio was significant for three criteria from 13.2 (95% confidence interval [CI], 1.29-135) to infinite. However, the negative likelihood ratio was not low enough and not significant for the three criteria (0.85 [95% CI, 0.67-1.07] to 0.86 [95% CI, 0.68-1.08]).Conclusion: The conventional clinical chorioamnionitis criteria are not sensitive for the prediction of intra-amniotic infection in pregnant women with preterm labor and/or preterm prelabor rupture of membranes.
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Affiliation(s)
- Yohei Maki
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
| | - Seishi Furukawa
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
| | - Tetsuo Nakayama
- Department of Obstetrics and Gynecology, Miyazaki Medical Association Hospital, Miyazaki, Japan
| | - Masanao Oohashi
- Department of Obstetrics and Gynecology, Miyazaki Medical Association Hospital, Miyazaki, Japan
| | - Nozomi Shiiba
- Department of Obstetrics and Gynecology, Miyakonojo Medical Center, National Hospital Organization, Miyazaki, Japan
| | - Ken Furuta
- Department of Obstetrics and Gynecology, Miyakonojo Medical Center, National Hospital Organization, Miyazaki, Japan
| | - Shuuichi Tokunaga
- Department of Obstetrics and Gynecology, Miyakonojo Medical Center, National Hospital Organization, Miyazaki, Japan
| | - Hiroshi Sameshima
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
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Fujisaki M, Furuta K, Ohhashi M, Furukawa S, Kodama Y, Kawagoe Y, Sameshima H, Ikenoue T. Antithrombin improves the maternal and neonatal outcomes but not the angiogenic factors in extremely growth-restricted fetuses at <28 weeks of gestation. J Perinat Med 2017; 45:837-842. [PMID: 27914214 DOI: 10.1515/jpm-2016-0190] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Accepted: 10/12/2016] [Indexed: 11/15/2022]
Abstract
AIMS Severe preterm fetal growth restriction (FGR) remote from term is problematic. We aimed to investigate the effect of maternally-administered antithrombin on maternal and neonatal outcomes. A prospective, one-arm, pilot study was performed in 14 women with severe FGR (≤5th centile) at <28 weeks of gestation, without hypertensive disorders. Maternal plasma concentrations of soluble Feline McDonough Sarcoma (FMS)-like trypsin kinase-1 (sFlt-1) and placental growth factor (PlGF) were measured and categorized into three groups: group 1; low sFlt-1 and high PlGF, group 2; moderate sFlt-1 and low PlGF, and group 3; high sFlt-1 and low PlGF. Antithrombin was administered for 3 days. The incidence of perinatal mortality, infant morbidity, and the period of pregnancy prolongation were compared. RESULTS In group 1 (n=4), their pregnancies were extended for longer periods and the maternal and infant outcomes were good. The prolongation periods were shorter in groups 2 (n=3) and 3 (n=7), which resulted in poor maternal [severe preeclampsia or hemolysis, elevated liver enzymes, and low platelet count (HELLP) syndrome] and infant outcomes. CONCLUSIONS The evaluation of the maternal sFlt-1 and PlGF at 21-27 weeks of gestation is useful in the managements of severe FGR. Antithrombin treatment could prolong the pregnancies with low sFlt-1 and high PlGF without negatively affecting maternal or fetal health.
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Morita Y, Osaki Y, Furushima T, Miyamoto Y, Furuta K, Furuya H. Disease progression in Parkinson’s disease. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1650] [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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Shoji H, Kato K, Yoshimoto S, Kakizaki F, Furuta K, Onidani K, Miura N, Honda K. Next-generation sequencing of circulating tumor cells isolated from peripheral blood of patients with head and neck or gastrointestinal cancer. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw392.39] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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8
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Sunami K, Furuta K, Tsuta K, Nakaoku T, Shimada Y, Watanabe S, Nokihara H, Sasada S, Ohe Y, Kohno T. 463 Multiplex detection of 17 kinds of oncogenic fusion and aberrant transcripts in formalin-fixed, paraffin embedded tissues of lung adenocarcinoma by molecular counting. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30297-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Terasaka K, Yoshimura S, Kato Y, Furuta K, Aramaki M, Morisaki T, Tanaka MY. High-impedance wire grid method to study spatiotemporal behavior of hot electron clump generated in a plasma. Rev Sci Instrum 2014; 85:113503. [PMID: 25430112 DOI: 10.1063/1.4901096] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
High-impedance Wire Grid (HIWG) detector has been developed to study spatiotemporal behavior of a hot electron clump generated in an electron cyclotron resonance (ECR) plasma. By measuring the floating potentials of the wire electrodes, and generating structure matrix made of geometrical means of the floating potentials, the HIWG detector reconstructs the spatial distribution of high-temperature electron clump at an arbitrary instant of time. Time slices of the spike event in floating potential revealed the growth and decay process of a hot spot occurs in an ECR plasma.
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Affiliation(s)
- K Terasaka
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 816-8580 Kasuga, Fukuoka, Japan
| | - S Yoshimura
- National Institute for Fusion Science, 509-5292 Toki, Gifu, Japan
| | - Y Kato
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 816-8580 Kasuga, Fukuoka, Japan
| | - K Furuta
- Department of Physics, Nagoya University, 464-8602 Nagoya, Aichi, Japan
| | - M Aramaki
- College of Industrial Technology, Nihon University, 275-8575 Narashino, Chiba, Japan
| | - T Morisaki
- National Institute for Fusion Science, 509-5292 Toki, Gifu, Japan
| | - M Y Tanaka
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 816-8580 Kasuga, Fukuoka, Japan
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Yagishita S, Horinouchi H, Sunami K, Kanda S, Fujiwara Y, Nokihara H, Yamamoto N, Sumi M, Shiraishi K, Kohno T, Furuta K, Tsuta K, Tamura T. Impact of Kras Mutation on the Response and Prognosis of Patients with Stage III Non-Squamous Non-Small Cell Lung Cancer. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu348.16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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11
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Kato K, Shoji H, Kakizaki T, Honda K, Kakimoto A, Sakuma T, Yamada T, Fang S, Wu A, Lim C, Furuta K. Next Generation Sequencing of Circulating Tumor Cells Isolated from the Peripheral Blood of Patients with Gastrointestinal Cancer. Circle-1 Trial. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu358.44] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Abstract
OBJECTIVE To determine the effect of placental abruption on the outcome of infants born between 22 and 26 weeks of gestation. METHODS A retrospective study involving 32 cases of placental abruption. Controls were matched to cases according to gestational age and birth weight. Medical records were reviewed to confirm maternal background and neonatal outcome. We compared characteristics of maternal background and neonatal outcome between the two groups. RESULTS There were no significant differences in the incidence of pregnancy-induced hypertension, low maternal fibrinogen (<200 mg/dl), premature rupture of membrane, intrauterine infection, ischemic changes of the placenta, or funisitis between the groups. Non-reassuring fetal heart rate patterns (NRFHRs) during intrapartum were frequently seen in the placental abruption group compared to controls (75% versus 51%, p = 0.02). However, no differences were found for the incidence of low umbilical artery pH (<7.1), cerebral palsy, or neonatal death. The incidence of chronic lung disease (CLD, 66% versus 43%, p = 0.04) and hemosiderin deposition on the placenta (16% versus 0%, p < 0.01) was higher in abruptions compared to controls. CONCLUSION Placental abruption has a risk for the development of NRFHRs and CLD in infants born between 22 and 26 weeks of gestation, but shows no effect on neonatal mortality.
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Affiliation(s)
- Seishi Furukawa
- Department of Obstetrics & Gynecology, Faculty of Medicine, University of Miyazaki , Miyazaki , Japan
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Takahashi N, Yamada Y, Furuta K, Honma Y, Iwasa S, Takashima A, Kato K, Hamaguchi T, Shimada Y. Serum levels of hepatocyte growth factor and epiregulin are associated with the prognosis on anti-EGFR antibody treatment in KRAS wild-type metastatic colorectal cancer. Br J Cancer 2014; 110:2716-27. [PMID: 24800946 PMCID: PMC4037834 DOI: 10.1038/bjc.2014.230] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2014] [Revised: 04/02/2014] [Accepted: 04/08/2014] [Indexed: 02/06/2023] Open
Abstract
Background: Ligands of transmembrane receptor tyrosine kinases have important roles in cell proliferation, survival, migration and differentiation in solid tumours. We conducted this study to evaluate the relationship between concentration of serum ligands and prognosis of patients with metastatic colorectal cancer (mCRC) treated with anti-epidermal growth factor receptor (EGFR) antibodies. Methods: Between August 2008 and August 2011, serum samples were obtained from KRAS wild-type patients who met the inclusion criteria and received an anti-EGFR antibody treatment. Serum concentration of ligands was measured by an enzyme-linked immunosorbent assay, and somatic mutations of KRAS, BRAF, PIK3CA and BRAF were analysed by direct sequencing. Results: A total of 103 patients were enrolled in the present study. At the pretreatment serum levels, patients with high levels of hepatocyte growth factor (HGF) had shorter progression-free survival (PFS) and overall survival (OS) compared with those with low levels of HGF (median PFS: 6.4 months vs 4.4 months; P<0.001, median OS: 15.3 months vs 8.0 months; P<0.001, respectively). Patients with high levels of epiregulin (EREG) also had shorter PFS and OS compared with those with low levels of EREG (median PFS: 6.6 months vs 4.9 months; P=0.016, median OS: 13.8 months vs 7.4 months; P=0.048, respectively). In addition, patients whose serum levels of ligands were elevated at progressive disease had shorter PFS and OS compared with other patients. Conclusions: Our study indicated that high levels of HGF and EREG were associated with resistance to treatment with anti-EGFR antibodies in KRAS wild-type patients with mCRC. Our findings will contribute to the newly combination therapy on the treatment of anti-EGFR antibodies.
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Affiliation(s)
- N Takahashi
- Gastrointestinal Oncology Division, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan
| | - Y Yamada
- Gastrointestinal Oncology Division, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan
| | - K Furuta
- Division of Clinical Laboratories, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan
| | - Y Honma
- Gastrointestinal Oncology Division, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan
| | - S Iwasa
- Gastrointestinal Oncology Division, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan
| | - A Takashima
- Gastrointestinal Oncology Division, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan
| | - K Kato
- Gastrointestinal Oncology Division, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan
| | - T Hamaguchi
- Gastrointestinal Oncology Division, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan
| | - Y Shimada
- Gastrointestinal Oncology Division, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan
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Tsuta K, Kohno T, Yoshida A, Shimada Y, Asamura H, Furuta K, Kushima R. RET-rearranged non-small-cell lung carcinoma: a clinicopathological and molecular analysis. Br J Cancer 2014. [PMID: 24504365 DOI: 10.1038/bjc.2014.36.] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND To elucidate clinicopathological characteristics of non-small-cell lung carcinoma (NSCLC) cases carrying RET rearrangements causing oncogenic fusions to identify responders to therapy with RET tyrosine kinase inhibitors. METHODS We investigated 1874 patients with carcinomas, including 1620 adenocarcinomas (ADCs), 203 squamous cell carcinomas (SCCs), 8 large cell carcinomas, and 43 sarcomatoid carcinomas (SACs). Fluorescence in situ hybridisation (FISH) and/or reverse transcription-PCR (RT-PCR) were performed to detect RET gene rearrangement. RESULTS In all, 22 cases (1.2%) showed RET rearrangements; all cases were of ADC histology. Of the 22 patients, 19 possessed KIF5B-RET fusion genes, whereas 3 possessed CCDC6-RET fusion genes. The RET-rearranged tumours were significantly more common in younger patients (P=0.038) and tended to occur in patients with no history of smoking (P=0.051). In addition, RET rearrangements were not associated with gender, occupational history (particularly radioactive exposure), tumour size, lymph node status, tumour stage, or patient survival. The predominant growth pattern in RET-rearranged ADCs was lepidic in 6 cases, papillary in 9 cases, acinar in 2 cases, micropapillary in 1 case, and solid in 4 cases. Cells with cytoplasmic mucin production were at least focally present in 12 of the 22 (54.5%) RET-rearranged ADC cases. Among the 21 analysed RET-rearranged tumours, RET immunopositivity was observed in 15 cases (71.4%), and was significantly associated with RET rearrangement (P<0.001). CONCLUSIONS The RET rearrangements were observed in 1.2% of NSCLCs. All cases of RET rearrangement were ADCs. The RET rearrangements were more likely to be observed in younger patients. Although cytoplasmic mucin production was at least focally present in 54.5% of RET-rearranged ADCs, specific histological features were not detected.
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Affiliation(s)
- K Tsuta
- Division of Pathology and Clinical Laboratories, National Cancer Center Hospital, 1-1 Tsukiji 5-chome, Chuo-ku, Tokyo 104-0045, Japan
| | - T Kohno
- 1] Division of Genome Biology, National Cancer Center Research Institute, Tokyo, Japan [2] Division of Translational Research, Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Tokyo, Japan
| | - A Yoshida
- Division of Pathology and Clinical Laboratories, National Cancer Center Hospital, 1-1 Tsukiji 5-chome, Chuo-ku, Tokyo 104-0045, Japan
| | - Y Shimada
- Division of Genome Biology, National Cancer Center Research Institute, Tokyo, Japan
| | - H Asamura
- Division of Thoracic Surgery, National Cancer Center Hospital, Tokyo, Japan
| | - K Furuta
- Division of Pathology and Clinical Laboratories, National Cancer Center Hospital, 1-1 Tsukiji 5-chome, Chuo-ku, Tokyo 104-0045, Japan
| | - R Kushima
- Division of Pathology and Clinical Laboratories, National Cancer Center Hospital, 1-1 Tsukiji 5-chome, Chuo-ku, Tokyo 104-0045, Japan
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Tsuta K, Kohno T, Yoshida A, Shimada Y, Asamura H, Furuta K, Kushima R. RET-rearranged non-small-cell lung carcinoma: a clinicopathological and molecular analysis. Br J Cancer 2014; 110:1571-8. [PMID: 24504365 PMCID: PMC3960615 DOI: 10.1038/bjc.2014.36] [Citation(s) in RCA: 122] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2013] [Revised: 12/20/2013] [Accepted: 01/07/2014] [Indexed: 12/14/2022] Open
Abstract
Background: To elucidate clinicopathological characteristics of non-small-cell lung carcinoma (NSCLC) cases carrying RET rearrangements causing oncogenic fusions to identify responders to therapy with RET tyrosine kinase inhibitors. Methods: We investigated 1874 patients with carcinomas, including 1620 adenocarcinomas (ADCs), 203 squamous cell carcinomas (SCCs), 8 large cell carcinomas, and 43 sarcomatoid carcinomas (SACs). Fluorescence in situ hybridisation (FISH) and/or reverse transcription–PCR (RT–PCR) were performed to detect RET gene rearrangement. Results: In all, 22 cases (1.2%) showed RET rearrangements; all cases were of ADC histology. Of the 22 patients, 19 possessed KIF5B–RET fusion genes, whereas 3 possessed CCDC6–RET fusion genes. The RET-rearranged tumours were significantly more common in younger patients (P=0.038) and tended to occur in patients with no history of smoking (P=0.051). In addition, RET rearrangements were not associated with gender, occupational history (particularly radioactive exposure), tumour size, lymph node status, tumour stage, or patient survival. The predominant growth pattern in RET-rearranged ADCs was lepidic in 6 cases, papillary in 9 cases, acinar in 2 cases, micropapillary in 1 case, and solid in 4 cases. Cells with cytoplasmic mucin production were at least focally present in 12 of the 22 (54.5%) RET-rearranged ADC cases. Among the 21 analysed RET-rearranged tumours, RET immunopositivity was observed in 15 cases (71.4%), and was significantly associated with RET rearrangement (P<0.001). Conclusions: The RET rearrangements were observed in 1.2% of NSCLCs. All cases of RET rearrangement were ADCs. The RET rearrangements were more likely to be observed in younger patients. Although cytoplasmic mucin production was at least focally present in 54.5% of RET-rearranged ADCs, specific histological features were not detected.
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Affiliation(s)
- K Tsuta
- Division of Pathology and Clinical Laboratories, National Cancer Center Hospital, 1-1 Tsukiji 5-chome, Chuo-ku, Tokyo 104-0045, Japan
| | - T Kohno
- 1] Division of Genome Biology, National Cancer Center Research Institute, Tokyo, Japan [2] Division of Translational Research, Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Tokyo, Japan
| | - A Yoshida
- Division of Pathology and Clinical Laboratories, National Cancer Center Hospital, 1-1 Tsukiji 5-chome, Chuo-ku, Tokyo 104-0045, Japan
| | - Y Shimada
- Division of Genome Biology, National Cancer Center Research Institute, Tokyo, Japan
| | - H Asamura
- Division of Thoracic Surgery, National Cancer Center Hospital, Tokyo, Japan
| | - K Furuta
- Division of Pathology and Clinical Laboratories, National Cancer Center Hospital, 1-1 Tsukiji 5-chome, Chuo-ku, Tokyo 104-0045, Japan
| | - R Kushima
- Division of Pathology and Clinical Laboratories, National Cancer Center Hospital, 1-1 Tsukiji 5-chome, Chuo-ku, Tokyo 104-0045, Japan
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Kinno T, Tsuta K, Shiraishi K, Mizukami T, Suzuki M, Yoshida A, Suzuki K, Asamura H, Furuta K, Kohno T, Kushima R. Clinicopathological features of nonsmall cell lung carcinomas with BRAF mutations. Ann Oncol 2013; 25:138-42. [PMID: 24297085 DOI: 10.1093/annonc/mdt495] [Citation(s) in RCA: 97] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Recently, driver tyrosine kinase gene mutations have been detected in malignant tumors, including lung tumors. Notwithstanding their attractiveness as targets for molecular therapy, limited information is available regarding BRAF-mutated lung carcinomas. MATERIALS AND METHODS BRAF mutation status was determined in 2001 surgically resected nonsmall-cell lung cancer (NSCLC) cases using high-resolution melting analysis (HRMA) followed by Sanger sequencing and/or deep sequencing using next generation sequencer. RESULTS BRAF mutations were detected in 26 (1.3%) of 2001 NSCLC cases (25 adenocarcinomas and 1 squamous cell carcinoma). In the 26 cases, 13 mutation genotypes were identified, including V600E (8 of 26; 30.8%), G469A (6 of 26; 23.1%), K601E (4 of 26; 15.4%), and other residual mutations (1 of 26; 0.04%). Of the 13 genotypes, 4 genotypes (G464E, G596R, A598T, and G606R) had not been previously reported in lung cancer. The overall survival rate was not significantly different between patients with wild-type BRAF and those with V600E or non-V600E BRAF mutations (P = 0.49 and P = 0.15, respectively). Histomorphological analysis revealed that focal clear cell changes were present in 75% of V600E-mutated tumors. All V600E BRAF-mutated tumors were negative for other driver gene alterations including epidermal growth factor receptor (EGFR) and KRAS mutations and the anaplastic lymphoma kinase gene translocation, whereas five tumors with non-V600E BRAF mutations (four G469A and one G464E/G466R) showed concomitant EGFR mutations. CONCLUSION The frequency of BRAF mutations in lung cancer was low in an Asian cohort. Furthermore, BRAF mutation status lacked prognostic significance in this patient population.
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Affiliation(s)
- T Kinno
- Division of Pathology and Clinical Laboratories, National Cancer Center Hospital
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17
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Iwakiri R, Tominaga K, Furuta K, Inamori M, Furuta T, Masuyama H, Kanke K, Nagahara A, Haruma K, Kinoshita Y, Higuchi K, Takahashi S, Kusano M, Iwakiri K, Kato M, Hongo M, Hiraishi H, Watanabe S, Miwa H, Naito Y, Fujimoto K, Arakawa T. Randomised clinical trial: rabeprazole improves symptoms in patients with functional dyspepsia in Japan. Aliment Pharmacol Ther 2013; 38:729-40. [PMID: 23957383 DOI: 10.1111/apt.12444] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [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: 04/22/2013] [Revised: 04/26/2013] [Accepted: 07/18/2013] [Indexed: 12/19/2022]
Abstract
BACKGROUND The efficacy of proton pump inhibitors (PPIs) for treating functional dyspepsia (FD) is not well established. AIM This study, named the SAMURAI study, aimed to assess the efficacy and dose-response relationship of rabeprazole in Japanese patients with FD in a multicentre, double-blinded, randomised, placebo-controlled trial. METHODS Investigated FD was diagnosed using the Rome III criteria. Subjects who did not respond to 1 week of single-blind placebo treatment in a run-in period were randomly assigned to 8 weeks of double-blind treatment with rabeprazole 10 mg, 20 mg, 40 mg or placebo, once daily. Dyspeptic symptoms were assessed by a dyspepsia symptom questionnaire (7-point Likert scale) and symptom diary. RESULTS Of 392 subjects entered into the run-in period, 338 were randomly assigned. Although there was no significant difference between placebo and rabeprazole groups in complete symptom relief for four major dyspeptic symptoms, the satisfactory symptom relief of rabeprazole 20 mg was significantly higher than placebo according to the dyspepsia symptom questionnaire (45.3% vs. 28.2%, P = 0.027) and the symptom diary assessment (48.7% vs. 30.0%, P = 0.016). The efficacy was not influenced by syndrome type or Helicobacter pylori status. No statistically significant differences in the incidence of adverse events were seen among treatment groups. CONCLUSIONS Rabeprazole 20 mg once daily but not 10 or 40 mg significantly provides satisfactory symptom relief for functional dyspepsia (ClinicalTrials.gov, Number NCT01089543).
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Affiliation(s)
- R Iwakiri
- Department of Internal Medicine & Gastrointestinal Endoscopy, Saga Medical School, Saga, Japan.
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18
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Noro R, Honda K, Tsuta K, Ishii G, Maeshima AM, Miura N, Furuta K, Shibata T, Tsuda H, Ochiai A, Sakuma T, Nishijima N, Gemma A, Asamura H, Nagai K, Yamada T. Distinct outcome of stage I lung adenocarcinoma with ACTN4 cell motility gene amplification. Ann Oncol 2013; 24:2594-2600. [PMID: 23899839 DOI: 10.1093/annonc/mdt293] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Even if detected at an early stage, a substantial number of lung cancers relapse after curative surgery. However, no method for distinguishing such tumors has yet been established. PATIENTS AND METHODS The copy number of the actinin-4 (ACTN4) gene was determined by fluorescence in situ hybridization on tissue microarrays comprising 543 surgically resected adenocarcinomas of the lung. RESULTS Amplification (an increase in the copy number by ≥ 2.0 fold) of the ACTN4 gene was detected in two of seven lung adenocarcinoma cell lines and 79 (15%) of 543 cases of pathological stage I-IV lung adenocarcinoma. Multivariate analysis revealed that ACTN4 gene amplification was the most significant independent factor associated with an extremely high risk of death (hazard ratio, 6.78; P = 9.48 × 10(-5), Cox regression analysis) among 290 patients with stage I lung adenocarcinoma. The prognostic significance of ACTN gene amplification was further validated in three independent cohorts totaling 1033 patients. CONCLUSIONS Amplification of the ACTN4 gene defines a small but substantial subset of patients with stage I lung adenocarcinoma showing a distinct outcome. Such patients require intensive medical attention and might benefit from postoperative adjuvant chemotherapy.
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Affiliation(s)
- R Noro
- Division of Chemotherapy and Clinical Research, National Cancer Center Research Institute, Tokyo; Department of Internal Medicine, Division of Pulmonary Medicine, Infectious Diseases and Oncology, Nippon Medical School, Tokyo
| | - K Honda
- Division of Chemotherapy and Clinical Research, National Cancer Center Research Institute, Tokyo
| | - K Tsuta
- Pathology and Clinical Laboratory Division, National Cancer Center Hospital, Tokyo
| | - G Ishii
- Department of Pathology, Research Center for Innovative Oncology, National Cancer Center Research Institute, Tokyo
| | - A M Maeshima
- Pathology and Clinical Laboratory Division, National Cancer Center Hospital, Tokyo
| | - N Miura
- Division of Chemotherapy and Clinical Research, National Cancer Center Research Institute, Tokyo
| | - K Furuta
- Division of Clinical Laboratories, National Cancer Center Hospital, Tokyo
| | - T Shibata
- Division of Cancer Genomics, National Cancer Center Research Institute, Tokyo
| | - H Tsuda
- Pathology and Clinical Laboratory Division, National Cancer Center Hospital, Tokyo
| | - A Ochiai
- Department of Pathology, Research Center for Innovative Oncology, National Cancer Center Research Institute, Tokyo
| | - T Sakuma
- Mitsui Knowledge Industry, Tokyo
| | - N Nishijima
- Department of Internal Medicine, Division of Pulmonary Medicine, Infectious Diseases and Oncology, Nippon Medical School, Tokyo
| | - A Gemma
- Department of Internal Medicine, Division of Pulmonary Medicine, Infectious Diseases and Oncology, Nippon Medical School, Tokyo
| | - H Asamura
- Division of Thoracic Surgery, National Cancer Center Hospital, Tokyo
| | - K Nagai
- Department of Thoracic Oncology, National Cancer Center Hospital East, Kashiwa, Japan
| | - T Yamada
- Division of Chemotherapy and Clinical Research, National Cancer Center Research Institute, Tokyo.
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Wang J, Wang H, Ding J, Furuta K, Kanno T, Ip W, Zhang W. On domain modelling of the service system with its application to enterprise information systems. ENTERP INF SYST-UK 2013. [DOI: 10.1080/17517575.2013.810784] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Hiramoto N, Kobayashi Y, Nomoto J, Maruyama D, Watanabe T, Tochigi N, Furuta K, Takeda K, Chuman H, Yagyu S, Hosoi H, Tobinai K. Ewing Sarcoma Arising After Treatment of Diffuse Large B-cell Lymphoma. Jpn J Clin Oncol 2013; 43:417-21. [DOI: 10.1093/jjco/hyt011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Ducsay CA, Furuta K, Vargas VE, Kaushal KM, Singleton K, Hyatt K, Myers DA. Leptin receptor antagonist treatment ameliorates the effects of long-term maternal hypoxia on adrenal expression of key steroidogenic genes in the ovine fetus. Am J Physiol Regul Integr Comp Physiol 2013; 304:R435-42. [PMID: 23344230 DOI: 10.1152/ajpregu.00377.2012] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We previously reported elevated adipose leptin expression, plasma leptin concentrations, and adrenocortical leptin receptor expression in the long-term hypoxic (LTH) ovine fetus. This study addressed whether leptin antagonist (LA) administration to LTH fetal sheep altered expression of key genes governing cortisol synthesis. Ewes were maintained at high altitude (3,820 meters) from 40 to 130 days gestation (dG), returned to Loma Linda University, and implanted with a maternal tracheal catheter. Reduced Po2 was maintained by nitrogen infusion. On 132 dG, LTH (n = 11) and age-matched, normoxic control (n = 11) fetuses underwent vascular catheter implantation. At 138 dG, fetuses were continuously infused with either saline or the LA (1.5 mg·kg(-1)·day(-1)) for 4 days and samples collected for blood gases, ACTH, and cortisol. Fetal adrenal cortex was collected for determination of steriodogenic acute regulatory protein (StAR), ACTH, and leptin receptor, cholesterol side-chain cleavage (CYP11A1), cytochrome P-450 11β-hydroxylase (CYP11B1), 17α-hydroxylase (CYP17), 21-hydroxylase (CYP21), signal transducer and activator of transcription 3 (STAT3), pSTAT3, and 17β-hydroxysteroid dehydrogenase (HSD3B) expression. In the saline-infused LTH fetuses, StAR, ACTH receptor, CYP11A1, and CYP17 expression was significantly lower compared with control (P < 0.05), whereas levels of CYP11B1, CYP21, and HSD3B mRNA were similar between groups. LA infusion restored expression of StAR, pSTAT3, CYP11A1, and CYP17, but not ACTH receptor, to normal ontogenic levels in the LTH group while having no effect on control fetuses. Neither fetal plasma ACTH nor cortisol concentrations were altered by LA infusion. We speculate that while leptin plays a role in governing expression of key enzymes and StAR in response to LTH, other factors play a role in modulating cortisol synthesis in these fetuses.
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Affiliation(s)
- Charles A Ducsay
- Center for Perinatal Biology, School of Medicine, Loma Linda University, Loma Linda, CA 92350, USA.
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22
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Ishikawa T, Kuo MT, Furuta K, Suzuki M. A new aspect on glutathione-associated biological function of MRP/GS-X pump and its gene expression. Cytotechnology 2012; 27:81-93. [PMID: 19002785 DOI: 10.1023/a:1008036015156] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The biological function as well as gene expression of the MRP/GS-X pump is closely linked with cellular GSH metabolism. This article describes two important aspects, i.e., 1) a role of the MRP/GS-X pump in the modulation of cell cycle arrest induced by anticancer prostaglandins; 2) coordinated up-regulation of gamma-glutamylcysteine synthetase gamma-GCS) and MRP1 genes. The A and J series of prostaglandins (PGs) accumulate in the nuclei to suppress the proliferation of cancer cells. Delta(7)-Prostaglandin A(1) (Delta(7)-PGA(1)) methyl ester, a synthetic anticancer PG, increased the mRNA level of the cyclin-dependent kinase inhibitor p21(Sdi1/CIP1/WAF1) in human leukemia HL-60 cells. The induction of p21(Sdi1/CIP1/WAF1) was associated with the accumulation of hypophosphorylated retinoblastoma protein (pRB) and the suppression of c-myc gene expression. Unlike HL-60 cells, cisplatin-resistant HL-60/R-CP cells were insensitive to Delta(7)-PGA(1) methyl ester. While c-myc expression was transiently suppressed, neither G1 arrest nor hypophosphorylation of pRB was observed with the anticancer PG. Plasma membrane vesicles from HL-60/R-CP cells showed an enhanced level of GS-X pump activity toward the glutathione S-conjugate of Delta(7)-PGA(1) methyl ester. GIF-0019, a potent inhibitor of the GS-X pump, dose-dependently enhanced the cellular sensitivity of HL-60/R-CP cells to Delta(7)-PGA(1) methyl ester, resulting in G1 arrest. The GS-X pump is suggested to play a pivotal role in modulating the biological action of the anticancer PG. The expression of MRP1 and gamma-GCS genes can be coordinately up-regulated by cisplatin, 1-[5-(4-amino-2-methyl)pyrimidyl]methyl-3-(2-chloroethyl)-3-nitrosourea (ACNU), and heavy metals in human cancer cells. For the up-regulation of these genes, both transcriptional and posttranscriptional regulations are considered to be involved.
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Tanaka K, Arao T, Tamura D, Aomatsu K, Furuta K, Matsumoto K, Kaneda H, Kudo K, Fujita Y, Kimura H, Yanagihara K, Yamada Y, Okamoto I, Nakagawa K, Nishio K. SRPX2 is a Novel Chondroitin Sulfate Proteoglycan that is Overexpressed in Gastrointestinal Cancer. Ann Oncol 2012. [DOI: 10.1093/annonc/mds573] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Kusumoto K, Kaneko M, Sameshima H, Minematsu T, Furuta K, Ikenoue T. Rubella outbreak on Tokunoshima Island in 2004: A population-based study of pregnant women. J Obstet Gynaecol Res 2010; 36:938-43. [DOI: 10.1111/j.1447-0756.2010.01277.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Furuta K, Adachi K, Ohara S, Morita T, Tanimura T, Koshino K, Kinoshita Y. Relationship between the Acid-Inhibitory Effects of Two Proton Pump Inhibitors and CYP2C19 Genotype in Japanese Subjects: A Randomized Two-Way Crossover Study. J Int Med Res 2010; 38:1473-83. [DOI: 10.1177/147323001003800430] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
This two-way crossover study investigated possible differences between the proton pump inhibitors, omeprazole and rabeprazole, in their effect on gastric acid secretion in Japanese subjects with differing cytochrome P450, family 2, subfamily C, polypeptide 19 (CYP2C19) genotypes. A total of 23 Helicobacter pylori-negative healthy volunteers received omeprazole 20 mg/day and rabeprazole 10 mg/day. Each drug treatment was given for a continuous 7-day period allocated in random order, with an interval of at least 1 week between drug treatment periods to allow for wash-out. Intragastric pH was measured on days 1 and 7. Overall median intragastric pH levels at 7 and 8 h after the first administration were significantly higher with omeprazole. There was no significant difference in intragastric pH in homozygous extensive metabolizers, whereas intragastric pH was significantly higher with omeprazole in combined data from heterozygous extensive metabolizers and poor metabolizers at 6, 7 and 8 h after the first drug administration. There were no significant differences in intragastric pH between omeprazole and rabeprazole irrespective of genotype on day 7 of administration. In conclusion, on day 1 the time to onset of the antisecretory action of 20 mg/day omeprazole was more rapid than that of 10 mg/day rabeprazole in Japanese individuals who have a higher incidence of the CYP2C19 poor metabolizer genotype, however by day 7 no difference in antisecretory effect was found, regardless of genotype.
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Affiliation(s)
- K Furuta
- Second Department of Internal Medicine
| | - K Adachi
- Department of Clinical Nursing, Shimane University Faculty of Medicine, Shimane, Japan
| | - S Ohara
- Second Department of Internal Medicine
| | - T Morita
- Second Department of Internal Medicine
| | | | - K Koshino
- Second Department of Internal Medicine
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26
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Ono H, Furuta K, Fujitani R. Radiolunate fusion using vascularized radius bridging graft for the treatment of advanced Kienböck disease: two cases report. Hand Surg 2010; 15:139-144. [PMID: 20672406 DOI: 10.1142/s0218810410004709] [Citation(s) in RCA: 3] [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] [Subscribe] [Scholar Register] [Received: 12/18/2009] [Revised: 03/12/2010] [Accepted: 05/07/2010] [Indexed: 05/29/2023]
Abstract
We present here two cases wherein we performed radiolunate fusion using vascularized radius graft with the vascular pedicle of the fourth extensor compartment artery (fourth ECA) for the treatment of Bain's grade 2A Kienböck disease with incongruity of the radiolunate joint. The dorsodistal radius graft was levered out and mobilized on the pedicle of the fourth ECA; then the vascularized dorsodistal radius was shifted 1 cm distally and bridges were created between the radius and the lunate. The radiolunate joint was completely fused in both cases at three months after surgery. The capitolunate joint maintained congruity after surgery. The Mayo wrist score was 75 points, and the DASH (JSSH version) score for the two cases was 2.5 and 4.2 points, respectively. Radiolunate fusion using the vascularized radius bridging procedure is one of the satisfactory methods for treating advanced Kienböck disease, especially in Bain's grade 2A cases.
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Affiliation(s)
- H Ono
- Department of Orthopaedic Surgery, Kokuho Central Hospital, 404-1 Miyako, Tawaramoto, Shiki-gun, Nara 636-0302, Japan.
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Furuta K, Hashimoto H, Iwamoto N. The effect of budding and flowering of maple trees on the development of the maple aphid, Periphyllus californiensis Shinji (Homoptera, Aphididae) population. ACTA ACUST UNITED AC 2009. [DOI: 10.1111/j.1439-0418.1984.tb02733.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Furuta K, Yokozawa K, Takada T, Kato H. Bio-repository of Post-clinical Test Samples at the National Cancer Center Hospital (NCCH) in Tokyo. Jpn J Clin Oncol 2009; 39:534-9. [DOI: 10.1093/jjco/hyp049] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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29
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Matsubara J, Ono M, Ueno H, Okusaka T, Furuse J, Furuta K, Sawada J, Saijo N, Hirohashi S, Yamada T. Identification of prognostic factors for patients with advanced pancreatic cancer by proteomics. J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.4615] [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] [Indexed: 11/20/2022] Open
Abstract
4615 Background: Gemcitabine monotherapy is the current standard for patients with advanced pancreatic cancer (PC). Its efficacy, however, varies significantly depending on individuals. This study was aimed at discovering a new diagnostic biomarker that can estimate the outcome of patients after receiving the therapy. Methods: All patients included in this study (304 patients) had metastatic PC and received at least two cycles of gemcitabine monotherapy. We compared the baseline plasma proteome between representative 29 short-term survivors (survived for less than 100 days) and 31 long-term survivors (survived for more than 400 days) using quantitative mass spectrometry (MS). Results: Among a total of 45,277 peptide peaks, we identified 637 peaks whose intensities were significantly different (p<0.001, Welch's t-test). The 2 MS peaks with the highest statistical significance (p=2.57×10-4 and 5.03×10-4) were revealed to be derived from α1-antitrypsin (AT) and α1-antichymotrypsin (ACT), respectively, by tandem MS. The levels of AT and ACT, WBC count, platelet count, alkaline phosphatase, and ECOG performance status were selected using a forward stepwise procedure by Akaike's information criterion, and a scoring system (nomogram) was constructed to estimate the prognosis of individual patients. Among the selected parameters the AT level was found to be the second most significant contributor to the nomogram (p=0.0003; Table ). This survival prediction model was internally validated using a bootstrap approach with 200 resamples. Conclusions: Our survival prediction model including values of AT and ACT seems to have high practical utility and may lead to tailoring the treatment of patients with advanced PC. Modification of therapeutics may need to be taken into consideration for patients with increased AT and ACT. [Table: see text] [Table: see text]
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Affiliation(s)
- J. Matsubara
- National Cancer Center Research Institute, Tokyo, Japan; National Cancer Center Hospital, Tokyo, Japan; National Cancer Center Hospital East, Kashiwa, Japan; National Institute of Health Sciences, Tokyo, Japan
| | - M. Ono
- National Cancer Center Research Institute, Tokyo, Japan; National Cancer Center Hospital, Tokyo, Japan; National Cancer Center Hospital East, Kashiwa, Japan; National Institute of Health Sciences, Tokyo, Japan
| | - H. Ueno
- National Cancer Center Research Institute, Tokyo, Japan; National Cancer Center Hospital, Tokyo, Japan; National Cancer Center Hospital East, Kashiwa, Japan; National Institute of Health Sciences, Tokyo, Japan
| | - T. Okusaka
- National Cancer Center Research Institute, Tokyo, Japan; National Cancer Center Hospital, Tokyo, Japan; National Cancer Center Hospital East, Kashiwa, Japan; National Institute of Health Sciences, Tokyo, Japan
| | - J. Furuse
- National Cancer Center Research Institute, Tokyo, Japan; National Cancer Center Hospital, Tokyo, Japan; National Cancer Center Hospital East, Kashiwa, Japan; National Institute of Health Sciences, Tokyo, Japan
| | - K. Furuta
- National Cancer Center Research Institute, Tokyo, Japan; National Cancer Center Hospital, Tokyo, Japan; National Cancer Center Hospital East, Kashiwa, Japan; National Institute of Health Sciences, Tokyo, Japan
| | - J. Sawada
- National Cancer Center Research Institute, Tokyo, Japan; National Cancer Center Hospital, Tokyo, Japan; National Cancer Center Hospital East, Kashiwa, Japan; National Institute of Health Sciences, Tokyo, Japan
| | - N. Saijo
- National Cancer Center Research Institute, Tokyo, Japan; National Cancer Center Hospital, Tokyo, Japan; National Cancer Center Hospital East, Kashiwa, Japan; National Institute of Health Sciences, Tokyo, Japan
| | - S. Hirohashi
- National Cancer Center Research Institute, Tokyo, Japan; National Cancer Center Hospital, Tokyo, Japan; National Cancer Center Hospital East, Kashiwa, Japan; National Institute of Health Sciences, Tokyo, Japan
| | - T. Yamada
- National Cancer Center Research Institute, Tokyo, Japan; National Cancer Center Hospital, Tokyo, Japan; National Cancer Center Hospital East, Kashiwa, Japan; National Institute of Health Sciences, Tokyo, Japan
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Narita M, Kawamura H, Nakamura K, Shirai J, Furuta K, Abe F. An immunohistological study on the nephritis in chicks experimentally produced with avian nephritis virus. Avian Pathol 2008; 19:497-509. [PMID: 18679961 DOI: 10.1080/03079459008418703] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
One chick inoculated by a combined nasal and conjunctival sac route (in) and two chicks inoculated per os (io) died with visceral urate deposits at post inoculation days (dpi) 9 and 11. All infected chicks showed renal degeneration and inflammatory changes that originated from tubular cell necrosis. Avian nephritis virus (ANV) antigen was detected as cytoplasmic granules within the necrotic tubular epithelial cells. The serum uric acid was increased in in- and io-infected chicks 5 to 10 dpi and was coincident with the severity of the renal degeneration. Immunoglobulin (IgG and IgM)-containing cells were detected first in the renal lesion 5 and 7 dpi; they were coincident with the cell infiltration. IgG- and IgM-containing cells were demonstrated in the spleen 5 dpi and increased thereafter eight to 12 times more than those in non-infected control chicks. They were almost coincident with the detection of antibody against ANV. These findings suggested that ANV replication may stimulate the proliferative response of IgG- and IgM-containing cells in the spleen, and that the appearance of IgG- and IgM-containing cells in the kidney may also be closely associated with the clearance of ANV and regeneration of the renal lesion.
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Affiliation(s)
- M Narita
- Poultry Disease Laboratory, National Institute of Animal Health, Kurachi, Seki, Gifu, Japan
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Okutsu T, Furuta K, Haruta S, Kuroiwa T, Hiratsuka H. Photochemically induced nucleation of protein. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308098474] [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: 11/11/2022] Open
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Furuta K, Haruta S, Tanizawa Y, Hiratsuka H, Okutsu T. Photochemical neutral radical induced nucleation of proteins. Acta Crystallogr A 2008. [DOI: 10.1107/s010876730809260x] [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: 11/10/2022] Open
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Nakajima TE, Yamada Y, Furuta K, Gotoda T, Kato K, Hamaguchi T, Shimada Y, Katai H. Adiopokine levels and the risk of gastric cancer: A case-control study. J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.4582] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Sazawa H, Hirata K, Kosaki M, Shibata N, Furuta K, Yagi S, Tanaka Y, Kinoshita A, Shimizu M, Okumura H. Evaluation of AlGaN/GaN-HFET with HfAlO gate insulator. ACTA ACUST UNITED AC 2007. [DOI: 10.1002/pssc.200674920] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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36
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Miki M, Adachi K, Azumi T, Koshino K, Furuta K, Kinoshita Y. A comparative study of intragastric acidity during post-breakfast and pre-dinner administration of low-dose proton pump inhibitors: a randomized three-way crossover study. Aliment Pharmacol Ther 2006; 24:1445-51. [PMID: 17032285 DOI: 10.1111/j.1365-2036.2006.03140.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND The absorption and bioavailability of proton pump inhibitors is influenced by food intake. Proton pump inhibitors bind to the parietal cell active proton pump, which is maximally stimulated after dinner: usually the largest meal of the day. However, it has not been fully clarified whether the efficacy of proton pump inhibitors differs between post-breakfast and pre-dinner dosing. AIM To perform a pH-monitoring study to clarify this issue for two low-dose proton pump inhibitors. SUBJECTS AND METHODS The subjects were 20 healthy male volunteers (seven Helicobacter pylori-positive and 13 H. pylori-negative), who were divided into two groups of 10 and administered 15 mg lansoprazole or 10 mg rabeprazole, respectively. All subjects underwent ambulatory intragastric 24-h pH- monitoring under three conditions allocated randomly: (i) without medication, (ii) seventh day of post-breakfast administration and (iii) eighth day of pre-dinner administration of each drug. RESULTS There was no significant difference in the percentage time during which pH > or =4.0 in the 24-h period between post-breakfast and pre-dinner administration of both drugs (56.6% vs. 55.8%; P = 0.557), although intragastric acidity during administration of both drugs was significantly lower than that without medication. CONCLUSIONS The timing of drug administration does not significantly influence the efficacy of low-dose proton pump inhibitors.
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Affiliation(s)
- M Miki
- Department of Gastroenterology and Hepatology, Shimane University, School of Medicine, Shimane, Japan
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Amano Y, Ishimura N, Furuta K, Okita K, Masaharu M, Azumi T, Ose T, Koshino K, Ishihara S, Adachi K, Kinoshita Y. Interobserver agreement on classifying endoscopic diagnoses of nonerosive esophagitis. Endoscopy 2006; 38:1032-5. [PMID: 17058170 DOI: 10.1055/s-2006-944778] [Citation(s) in RCA: 35] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND STUDY AIMS The majority of patients with gastroesophageal reflux disease in Japan have low-grade esophagitis, including minimal changes. A modified Los Angeles classification of esophagitis, consisting of erosive esophagitis (grades A - D) and nonerosive esophagitis (grades M and N) has been proposed and is in clinical use in Japan. However, it is unclear whether nonerosive esophagitis with only undemarcated mucosal discoloration (grade M) is clinically significant, since interobserver variations in classification have not been investigated. The aim of the present study was therefore to evaluate interobserver variance and diagnostic agreement in the diagnosis of nonerosive esophagitis (grades M and N). MATERIALS AND METHODS A total of 84 endoscopists were enrolled to assess the grade of esophagitis in 30 patients by viewing endoscopic images of the gastroesophageal junction. The images were projected onto a screen, and all of the endoscopists reviewed them concurrently. The diagnosis was selected from the following three categories in the modified Los Angeles classification: grades N, M, or A. The endoscopists were grouped according to their experience, whether they had a board license, and whether they had received specialist training in esophagitis. The kappa coefficient of reliability was calculated. RESULTS The kappa coefficient of reliability for all the endoscopists in the diagnosis of cases of grade M and N nonerosive esophagitis was unacceptably low at 0.22 (95 % CI, 0.21 - 0.24). Endoscopists with a board license and those who had completed a special esophagitis diagnostic course had slightly higher kappa values (0.26; 95 % CI, 0.23 - 0.30 and 0.29; 95 % CI, 0.26 - 0.32), respectively. CONCLUSIONS Interobserver agreement on the endoscopic diagnosis of nonerosive esophagitis (grades M and N) is too low to be of clinical value.
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Affiliation(s)
- Y Amano
- Division of Gastrointestinal Endoscopy, Shimane University Hospital, Izumo, Japan.
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Takano T, Ohe Y, Furuta K, Tsuta K, Nomoto K, Matsuno Y, Fukui T, Sekine I, Kunitoh H, Tamura T. EGFR mutations detected by high-resolution melting analysis (HRMA) as a predictor of response and survival in non-small cell lung cancer (NSCLC) patients treated with gefitinib. J Clin Oncol 2006. [DOI: 10.1200/jco.2006.24.18_suppl.7075] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
7075 Background: Recent studies have shown that EGFR mutations, mainly deletions in exon 19 (DEL) and L858R, are associated with gefitinib sensitivity in patients (pts) with NSCLC. We established a new easy method, using high-resolution melting analysis (HRMA), for detecting DEL and L858R mutations even from small biopsy or cytology samples, and evaluated the significance of EGFR mutations in NSCLC on a larger scale. Methods: Among 364 advanced or recurrent NSCLC pts treated with gefitinib between Jul 2002 and Dec 2004, HRMA was performed in 207 pts from whom specimens were available. DNA extracted from the archival tissue or cytology samples not subjected to microdissection was analyzed to detect DEL and L858R using HR-1 (Idaho Technology), an HRMA device. To validate this method, the results were compared with direct sequencing data obtained from microdissected tumor cells from surgical specimens in 66 pts. Results: Tissue/cytology/both samples were analyzed in 91/77/39 pts. EGFR mutations were detected in 85 (41%; DEL/L858R: 49/36) of the 207 pts. In the comparison with direct sequencing, consistent results were obtained from all of the 66 tissue samples, while false negative results were obtained in 2 of the 28 cytology samples. EGFR mutations were seen more frequently in women (54% vs. 31%; P = .001), never-smokers (53% vs. 32%; P = .002), and pts with adenocarcinoma (44% vs. 11%; P = .007). CR/PR/SD/PD was observed in 2/64/11/8 pts with EGFR mutations and in 0/10/23/89 pts with wild-type EGFR. The response rate (78% vs. 8%), time to progression (median, 9.1 vs. 1.6 months) and overall survival (median, 19.9 vs. 9.1 months) were all significantly superior in pts with EGFR mutations (P < .0001). Minor response and/or long SD (>6 months) was observed more frequently in SD pts with EGFR mutations than in those with wild-type EGFR (91% vs. 26%; P < .001). Among the pts with EGFR mutations, the response rate was significantly higher in the pts with DEL than in those with L858R (86% vs. 67%; P = .037). Conclusions: HRMA is a practical and precise method to detect DEL and L858R mutations. EGFR mutations strongly predict a better response and longer survival in NSCLC pts treated with gefitinib. No significant financial relationships to disclose.
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Affiliation(s)
- T. Takano
- National Cancer Center Hospital, Tokyo, Japan
| | - Y. Ohe
- National Cancer Center Hospital, Tokyo, Japan
| | - K. Furuta
- National Cancer Center Hospital, Tokyo, Japan
| | - K. Tsuta
- National Cancer Center Hospital, Tokyo, Japan
| | - K. Nomoto
- National Cancer Center Hospital, Tokyo, Japan
| | - Y. Matsuno
- National Cancer Center Hospital, Tokyo, Japan
| | - T. Fukui
- National Cancer Center Hospital, Tokyo, Japan
| | - I. Sekine
- National Cancer Center Hospital, Tokyo, Japan
| | - H. Kunitoh
- National Cancer Center Hospital, Tokyo, Japan
| | - T. Tamura
- National Cancer Center Hospital, Tokyo, Japan
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Fukui T, Ohe Y, Takano T, Tsuta K, Nomoto K, Furuta K, Sekine I, Kunitoh H, Matsuno Y, Tamura T. Evaluation of epidermal growth factor receptor (EGFR) mutations as predictive and prognostic indicators in patients with adenocarcinoma of the lung treated with conventional chemotherapy. J Clin Oncol 2006. [DOI: 10.1200/jco.2006.24.18_suppl.7165] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
7165 Background: EGFR mutations are associated with the responses to EGFR-tyrosine kinase inhibitors (TKI) in patients (pts) with adenocarcinoma of the lung. The E746-A750 deletion and L858R substitution mutations are the most common, as previously described. However, their implications in pts treated with conventional chemotherapy are unclear. To evaluate the predictive and prognostic value of the EGFR mutations, we studied pts with adenocarcinoma of the lung treated with conventional chemotherapy. Methods: We reviewed pts with advanced or recurrent chemotherapy naïve adenocarcinoma of the lung who received systemic chemotherapy between January 1999 and July 2001. Deletion in exon 19 and missense mutation (L858R) in exon 21 from small biopsy or cytology samples were analyzed by a high-resolution DNA melting analysis technique. Results: A total of 101 pts, all Japanese, could be analyzed. Patient characteristics were as follows: median age: 62 (37–84) years; female/ male: 39/ 62; never/ former/ current smoker: 47/ 23/ 31; and platinum-based/ non-platinum regimen: 81/ 20 (18 pts received EGFR-TKI later). 43 pts (42.6%) had EGFR somatic mutations; deletion in 24 pts, and a point mutation (L858R) in 19 pts. PR/ SD/ PD/ NE was observed in 11/ 24/ 7/ 1 pts with EGFR mutations and in 13/ 28/ 15/ 2 pts without the mutations, respectively. The response rate was similar (26% vs. 22%, p = .71) in the two subgroups. The median survival duration of the pts with EGFR mutations was 14.9 months (n = 43, including the 11 pts treated with EGFR-TKI later), as compared with 11.0 months (n = 58, including the 7 pts treated with EGFR-TKI later) in the pts without EGFR mutations (p = .09). Another analysis which handle the start of gefitinib administration as a censoring showed similar results (p = .24). Conclusions: EGFR mutations were not good predictors of tumor response to conventional chemotherapy. The overall survival tended to be longer in the pts with EGFR mutations, but prognostic value of these mutations for survival in pts with advanced adenocarcinoma of the lung was not statistically significant. No significant financial relationships to disclose.
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Affiliation(s)
- T. Fukui
- National Cancer Center Hospital, Tokyo, Japan
| | - Y. Ohe
- National Cancer Center Hospital, Tokyo, Japan
| | - T. Takano
- National Cancer Center Hospital, Tokyo, Japan
| | - K. Tsuta
- National Cancer Center Hospital, Tokyo, Japan
| | - K. Nomoto
- National Cancer Center Hospital, Tokyo, Japan
| | - K. Furuta
- National Cancer Center Hospital, Tokyo, Japan
| | - I. Sekine
- National Cancer Center Hospital, Tokyo, Japan
| | - H. Kunitoh
- National Cancer Center Hospital, Tokyo, Japan
| | - Y. Matsuno
- National Cancer Center Hospital, Tokyo, Japan
| | - T. Tamura
- National Cancer Center Hospital, Tokyo, Japan
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Abstract
OBJECTIVE We previously demonstrated that, when expressed in COS-7 cells, L-histidine decarboxylase (HDC), which has neither an amino terminal signal sequence nor a hydrophobic membrane anchor, was localized in the endoplasmic reticulum (ER), although its orientation in the membrane remains to be clarified. METHODS & RESULTS Protease digestion and immunofluorescence analyses of the cells, of which plasma membrane was selectively permeabilized, revealed that the amino terminal 50-kDa portion of HDC is hardly accessible to proteases and antibodies added exogenously from the cytosolic side. Green fluorescent protein fused with the carboxyl terminal 20-kDa region of HDC at its carboxyl terminus exhibited the same characteristics as native HDC. CONCLUSION These results indicate that HDC is tightly associated with the ER membrane with its carboxyl terminal region exposed on the cytosolic side.
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Affiliation(s)
- K Furuta
- Department of Physiological Chemistry, Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto, 606-8501, Japan
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41
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Yuki T, Amano Y, Kushiyama Y, Takahashi Y, Ose T, Moriyama I, Fukuhara H, Ishimura N, Koshino K, Furuta K, Ishihara S, Adachi K, Kinoshita Y. Evaluation of modified crystal violet chromoendoscopy procedure using new mucosal pit pattern classification for detection of Barrett's dysplastic lesions. Dig Liver Dis 2006; 38:296-300. [PMID: 16542886 DOI: 10.1016/j.dld.2006.01.028] [Citation(s) in RCA: 13] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2005] [Revised: 01/30/2006] [Accepted: 01/31/2006] [Indexed: 12/11/2022]
Abstract
BACKGROUND Pit pattern diagnosis is important for endoscopic detection of dysplastic Barrett's lesions, though using magnification endoscopy can be difficult and laborious. We investigated the usefulness of a modified crystal violet chromoendoscopy procedure and utilised a new pit pattern classification for diagnosis of dysplastic Barrett's lesions. METHODS A total of 1,030 patients suspected of having a columnar lined oesophagus were examined, of whom 816 demonstrated a crystal violet-stained columnar lined oesophagus. The early group of patients underwent 0.05% crystal violet chromoendoscopy, while the later group was examined using 0.03% crystal violet with 3.0% acetate. A targeted biopsy of the columnar lined oesophagus was performed using crystal violet staining after making a diagnosis of closed or open type pit pattern with a newly proposed system of classification. The relationship between type of pit pattern and histologically identified dysplastic Barrett's lesions was evaluated. RESULTS Dysplastic Barrett's lesions were identified in biopsy samples with an open type pit pattern with a sensitivity of 96.0%. Further, Barrett's mucosa with the intestinal predominant mucin phenotype was closely associated with the open type pit pattern (sensitivity 81.9%, specificity 95.6%). CONCLUSIONS The new pit pattern classification for diagnosis of Barrett's mucosa was found to be useful for identification of cases with dysplastic lesions and possible malignant potential using a crystal violet chromoendoscopic procedure.
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Affiliation(s)
- T Yuki
- Department of Gastroenterology and Hepatology, Shimane University, School of Medicine, Japan
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42
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Shien T, Tashiro T, Omatsu M, Masuda T, Furuta K, Sato N, Akashi-Tanaka S, Uehara M, Iwamoto E, Kinoshita T, Fukutomi T, Tsuda H, Hasegawa T. Frequent overexpression of epidermal growth factor receptor (EGFR) in mammary high grade ductal carcinomas with myoepithelial differentiation. J Clin Pathol 2006; 58:1299-304. [PMID: 16311351 PMCID: PMC1770787 DOI: 10.1136/jcp.2005.026096] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
AIMS To evaluate the expression of common biological markers and the epidermal growth factor receptor (EGFR) in mammary high grade ductal carcinomas with myoepithelial differentiation (DCMDs). MATERIALS/METHODS Thirty DCMDs were clinicopathologically and immunohistochemically analysed and compared with 36 control cases of high grade conventional invasive ductal carcinoma (IDC). RESULTS EGFR, HER2/neu, oestrogen receptor, progesterone receptor, and p53 expression was seen in 21, one, three, four, and 20 of the 30 DCMDs, compared with eight, nine, 18, 17, and five of the 36 conventional IDCs (p<0.05), respectively. In 16 of the 30 DCMDs, metastases were found in the brain, lung, bone, and liver, within a maximum of 47 months (mean, 13.9) after initial surgery, whereas only four of the 36 conventional IDCs metastasised to the lung and bone within a maximum of 27 months (mean, 18.0) after initial surgery (p=0.0001). There was a significant difference in disease free survival between DCMD and conventional IDC (p=0.001). EGFR was frequently overexpressed in DCMD compared with conventional IDC, whereas the expression of HER2/neu and hormone receptors was lower in DCMD. Fluorescent in situ hybridisation revealed that the mean EGFR to chromosome 7 centromere (CEP7) ratio of the 24 DCMD cases available for evaluation was 1.03, and EGFR gene amplification was not detected in the 21 DCMD cases with EGFR overexpression. CONCLUSION Immunohistochemistry for myoepithelial markers and EGFR is useful for the accurate diagnosis and molecular target treatment of high grade DCMD.
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Affiliation(s)
- T Shien
- Division of Surgical Oncology, National Cancer Centre Hospital, Tokyo 104-0045, Japan
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Satoh T, Okamoto SI, Cui J, Watanabe Y, Furuta K, Suzuki M, Tohyama K, Lipton SA. Activation of the Keap1/Nrf2 pathway for neuroprotection by electrophilic [correction of electrophillic] phase II inducers. Proc Natl Acad Sci U S A 2006; 103:768-73. [PMID: 16407140 PMCID: PMC1334635 DOI: 10.1073/pnas.0505723102] [Citation(s) in RCA: 296] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Electrophilic neurite outgrowth-promoting prostaglandin (NEPP) compounds protect neurons from oxidative insults. At least part of the neuroprotective action of NEPPs lies in induction of hemeoxygenase-1 (HO-1), which, along with other phase II enzymes, serve as a defense system against oxidative stress. Here, we found that, by using fluorescent tags and immunoprecipitation assays, NEPPs are taken up preferentially into neurons and bind in a thiol-dependent manner to Keap1, a negative regulator of the transcription factor Nrf2. By binding to Keap1, NEPPs prevent Keap1-mediated inactivation of Nrf2 and, thus, enhance Nrf2 translocation into the nucleus of cultured neuronal cells. In turn, Nrf2 binds to antioxidant/electrophile-responsive elements of the HO-1 promoter to induce HO-1 expression. Consistent with this notion, NEPP induction of an HO-1 reporter construct is prevented if the antioxidant-responsive elements are mutated. We show that NEPPs are neuroprotective both in vitro from glutamate-related excitotoxicity and in vivo in a model of cerebral ischemia/reperfusion injury (stroke). Our results suggest that NEPPs prevent excitotoxicity by activating the Keap1/Nrf2/HO-1 pathway. Because NEPPs accumulate preferentially in neurons, they may provide a category of neuroprotective compounds, distinct from other electrophilic compounds such as tert-butylhydroquinone, which activates the antioxidant-responsive element in astrocytes. NEPPs thus represent a therapeutic approach for stroke and neurodegenerative disorders.
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Affiliation(s)
- T Satoh
- Center for Neuroscience and Aging, The Burnham Institute for Medical Research, 10901 North Torrey Pines Road, La Jolla, CA 92037, USA
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44
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Yamaguchi U, Hasegawa T, Morimoto Y, Tateishi U, Endo M, Nakatani F, Kawai A, Chuman H, Beppu Y, Endo M, Kurotaki H, Furuta K. A practical approach to the clinical diagnosis of Ewing's sarcoma/primitive neuroectodermal tumour and other small round cell tumours sharing EWS rearrangement using new fluorescence in situ hybridisation probes for EWSR1 on formalin fixed, paraffin wax embedded tissue. J Clin Pathol 2005; 58:1051-6. [PMID: 16189150 PMCID: PMC1770737 DOI: 10.1136/jcp.2004.025502] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.4] [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: 01/14/2023]
Abstract
BACKGROUND Over 90% of Ewing's sarcoma/primitive neuroectodermal tumour (ES/PNET) cases have the t(11;22) chromosomal rearrangement, which is also found in other small round cell tumours, including desmoplastic small round cell tumour (DSRCT) and clear cell sarcoma (CCS). Although this rearrangement can be analysed by fluorescence in situ hybridisation (FISH) using routinely formalin fixed, paraffin wax embedded (FFPE) tissues when fresh or frozen tissues are not available, a sensitive and convenient detection method is needed for routine clinical diagnosis. AIMS To investigate the usefulness of newly developed probes for detecting EWS rearrangement resulting from chromosomal translocations using FISH and FFPE tissue in the clinical diagnosis of ES/PNET, DSRCT, and CCS. METHODS Sixteen ES/PNETs, six DSRCTs, and six CCSs were studied. Three poorly differentiated synovial sarcomas, three alveolar rhabdomyosarcomas, and three neuroblastomas served as negative controls. Interphase FISH analysis was performed on FFPE tissue sections with a commercially available EWSR1 (22q12) dual colour, breakapart rearrangement probe. RESULTS One fused signal and one split signal of orange and green, demonstrating rearrangement of the EWS gene, was detected in 14 of 16 ES/PNETs, all six DRSCTs, and five of six CCSs, but not in the negative controls. CONCLUSIONS Interphase FISH using this newly developed probe is sensitive and specific for detecting the EWS gene on FFPE tissues and is of value in the routine clinical diagnosis of ES/PNET, DSRCT, and CCS.
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MESH Headings
- Adolescent
- Adult
- Aged
- Bone Neoplasms/diagnosis
- Bone Neoplasms/genetics
- Calmodulin-Binding Proteins/genetics
- Child
- Chromosomes, Human, Pair 11/genetics
- Chromosomes, Human, Pair 22/genetics
- DNA Probes
- Female
- Formaldehyde
- Gene Rearrangement
- Humans
- In Situ Hybridization, Fluorescence
- Male
- Middle Aged
- Neoplasm Proteins/genetics
- Neuroectodermal Tumors, Primitive, Peripheral/diagnosis
- Neuroectodermal Tumors, Primitive, Peripheral/genetics
- Paraffin Embedding
- RNA-Binding Protein EWS
- RNA-Binding Proteins/genetics
- Reverse Transcriptase Polymerase Chain Reaction/methods
- Sarcoma, Clear Cell/diagnosis
- Sarcoma, Clear Cell/genetics
- Sarcoma, Ewing/diagnosis
- Sarcoma, Ewing/genetics
- Translocation, Genetic
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Affiliation(s)
- U Yamaguchi
- Division of Orthopaedic Oncology, National Cancer Centre Hospital and Research Institute, Tokyo 104-0045, Japan
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Adachi K, Hashimoto T, Komazawa Y, Mihara T, Furuta K, Fujishiro H, Ishihara S, Amano Y, Hattori S, Kinoshita Y. Helicobacter pylori infection influences symptomatic response to anti-secretory therapy in patients with GORD--crossover comparative study with famotidine and low-dose lansoprazole. Dig Liver Dis 2005; 37:485-90. [PMID: 15975534 DOI: 10.1016/j.dld.2004.12.016] [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] [Received: 09/08/2004] [Accepted: 12/13/2004] [Indexed: 02/06/2023]
Abstract
BACKGROUND AND AIM Helicobacter pylori infection was reported to affect gastric acid secretion. We investigated the heartburn symptoms of patients with gastro-oesophageal reflux disease during sequential treatment with 40 mg of famotidine or 15 mg of lansoprazole to clarify whether H. pylori infection influences symptomatic response to anti-secretory therapy. SUBJECTS AND METHODS The subjects were 33 gastro-oesophageal reflux disease patients, who had already been treated with a full dose of H2 receptor antagonist. First, famotidine at 20 mg b.i.d. was administered to the patients for 8 weeks. Second, famotidine was replaced with 15 mg of lansoprazole once in the morning for 8 weeks. Finally, 20 mg of famotidine was administered b.i.d. for 8 weeks instead of lansoprazole. Gastro-oesophageal reflux disease symptoms were assessed using an original visual analogue scale. RESULTS The sequential symptomatic responses to famotidine and lansoprazole administration indicated that gastro-oesophageal reflux disease symptoms of patients during low-dose lansoprazole treatment were significantly less than those during famotidine treatment. Remission of symptoms was obtained significantly more often by famotidine therapy in patients with H. pylori infection than in patients without H. pylori infection. CONCLUSION Low-dose lansoprazole is more effective than full-dose famotidine for the control of symptoms in patients with gastro-oesophageal reflux disease, and H. pylori infection influences the symptomatic response to H2 receptor antagonists.
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Affiliation(s)
- K Adachi
- Department of Gastroenterology and Hepatology, Shimane University, School of Medicine, Izumo-shi, Japan.
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Fujisawa T, Adachi K, Komazawa Y, Mihara T, Azumi T, Katsube T, Furuta K, Kazumori H, Kinoshita Y. Helicobacter pylori infection prevents the occurrence of the tolerance phenomenon of histamine H2 receptor antagonists. Aliment Pharmacol Ther 2004; 20:559-65. [PMID: 15339327 DOI: 10.1111/j.1365-2036.2004.02147.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BACKGROUND The attenuated anti-secretory activity of H2 receptor antagonists (H2RA) during continuous administration is referred to as the tolerance phenomenon. However, it is not clarified whether Helicobacter pylori infection affects the occurrence of tolerance to H2RA. It is also not clarified whether the tolerance phenomenon occurs to a new H2RA, lafutidine. AIM To investigate the occurrence of the tolerance phenomenon in subjects with and without H. pylori infection during the continuous administration of lafutidine and famotidine. SUBJECTS AND METHODS Subjects were 20 healthy male volunteers (seven H. pylori positive and 13 H. pylori negative cases). All subjects were examined by ambulatory intragastric pH monitoring five times without medication, on the first and 15th day of the administration of 20 mg b.d. famotidine and 10 mg b.d. lafutidine in a cross-over fashion. RESULTS The tolerance phenomenon was not observed in H. pylori-positive subjects during the 15-day-long administration of both H2RAs. In contrast, the tolerance phenomenon was observed in H. pylori negative subjects, which has been previously reported. CONCLUSIONS This study demonstrated that H. pylori infection affects the tolerance phenomenon during continuous administration of H2RAs.
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Affiliation(s)
- T Fujisawa
- Department of Gastroenterology and Hepatology, Shimane University, School of Medicine, Shimane, Japan
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Zhang D, Yoshida T, Furuta K, Minoura H. Hydrothermal preparation of porous nano-crystalline TiO2 electrodes for flexible solar cells. J Photochem Photobiol A Chem 2004. [DOI: 10.1016/j.jphotochem.2003.11.018] [Citation(s) in RCA: 88] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Hardianti MS, Tatsumi E, Syampurnawati M, Furuta K, Saigo K, Nakamachi Y, Kumagai S, Ohno H, Tanabe S, Uchida M, Yasuda N. Activation-induced cytidine deaminase expression in follicular lymphoma: association between AID expression and ongoing mutation in FL. Leukemia 2004; 18:826-31. [PMID: 14990977 DOI: 10.1038/sj.leu.2403323] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Activation-induced cytidine deaminase (AID) is required for somatic hypermutation (SHM) and class switch recombination (CSR) of the immunoglobulin (Ig) gene. AID has been reported to be specifically expressed in the germinal center (GC). Follicular lymphoma (FL) cells are known to be exposed to GC reaction, as characterized by a high degree of SHM with some heterogeneity in terms of intraclonal microheterogeneity and antigen selection. The heterogeneity of SHM pattern in FL intrigued us to investigate the AID expression. AID expression was investigated in 19 FL materials consisting of 15 cases of FL fresh cells and four cell lines. In all, 10 fresh cells and three cell lines expressed AID, but the others did not. SHM was investigated in 12 fresh cells and four cell lines. The ongoing mutation was significantly different between AID-positive and AID-negative FL fresh cells (unpaired Student's t-test, P=0.047). Ongoing mutation was not seen in any of the cell lines. AID expression was associated with the ongoing mutation in FL fresh cells (two-tailed Pearson's coefficient correlation, r=0.899, P=0.01). The switch off of AID expression may start in the B-lineage differentiation stage counterpart of FL after optimizing SHM, indicated by the cessation of the ongoing mutation in AID-negative FL fresh cells.
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Affiliation(s)
- M S Hardianti
- International Center for Medical Research (ICMR), Graduate School of Medicine, Kobe University, Kobe, Japan
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Furuta K, Takahashi T, Aso K, Hoshino H, Sato K, Kakita A. Fibrosing cholestatic hepatitis in a liver transplant recipient with hepatitis C virus infection: a case report. Transplant Proc 2003; 35:389-91. [PMID: 12591454 DOI: 10.1016/s0041-1345(02)03976-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- K Furuta
- Department of Surgery, Kitasato University, Kanagawa, Japan
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Takahashi T, Ashizawa S, Matsumoto H, Furuta K, Omura T, Sato K, Kakita A. Fibrosing cholestatic hepatitis developing after liver transplantation: case report of a patient with HCV-related cirrhosis. Transplant Proc 2003; 35:392-3. [PMID: 12591455 DOI: 10.1016/s0041-1345(02)03922-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- T Takahashi
- Department of Surgery, Kitasato University Hospital, Kanagawa, Japan.
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