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Suzuki J, Namisaki T, Takya H, Kaji K, Nishimura N, Shibamoto A, Asada S, Kubo T, Iwai S, Tomooka F, Takeda S, Koizumi A, Tanaka M, Matsuda T, Inoue T, Fujimoto Y, Tsuji Y, Fujinaga Y, Sato S, Kitagawa K, Kawaratani H, Akahane T, Mitoro A, Matsumoto M, Asada K, Yoshiji H. ADAMTS-13: A Prognostic Biomarker for Portal Vein Thrombosis in Japanese Patients with Liver Cirrhosis. Int J Mol Sci 2024; 25:2678. [PMID: 38473925 DOI: 10.3390/ijms25052678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 02/22/2024] [Accepted: 02/23/2024] [Indexed: 03/14/2024] Open
Abstract
Portal vein thrombosis (PVT), one of the most prevalent hepatic vascular conditions in patients with liver cirrhosis (LC), is associated with high mortality rates. An imbalance between a disintegrin-like metalloproteinase with thrombospondin type-1 motifs 13 (ADAMTS-13) enzyme and von Willebrand factor (VWF) is responsible for hypercoagulability, including spontaneous thrombus formation in blood vessels. Herein, we aimed to identify potential prognostic and diagnostic biomarkers in Japanese patients with LC and PVT. In total, 345 patients were divided into two groups: 40 patients who developed PVT (PVT group) and 305 who did not develop PVT (NPVT group). Among the 345 patients with LC, 81% (279/345) were deemed ineligible due to the presence of preventive comorbidities, active or recent malignancies, and organ dysfunction. The remaining 66 patients were divided into two groups: the PVT group (n = 33) and the NPVT group (n = 33). Plasma ADAMTS-13 activity (ADAMTS-13:AC) and the vWF antigen (VWF:Ag) were measured using enzyme-linked immunosorbent assays. Contrast-enhanced, three-dimensional helical computed tomography (CT) was used to detect and characterize PVT. ADAMTS-13:AC was significantly lower in the PVT group than in the NPVT group. No significant differences in plasma vWF:Ag or liver stiffness were observed between the two groups. ADAMTS-13:AC of <18.8 was an independent risk factor for PVT on multivariate analyses (odds ratio: 1.67, 95% confidence interval: 1.21-3.00, p < 0.002). The receiver operating characteristic analysis of ADAMTS-13:AC revealed an area under the curve of 0.913 in PVT detection. Patients with PVT having ADAMTS-13:AC ≥18.8 (n = 17) had higher albumin levels and better prognoses than those with ADAMTS-13:AC <18.8 (n = 16). No significant correlations of ADAMTS-13:AC levels with either fibrin degradation product or D-dimer levels were observed. ADAMTS-13:AC levels could be potential diagnostic and prognostic biomarkers for PVT in Japanese patients with LC.
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Affiliation(s)
- Junya Suzuki
- Department of Gastroenterology, Nara Medical University, 840 Shijo-cho, Kashihara 634-8522, Nara, Japan
| | - Tadashi Namisaki
- Department of Gastroenterology, Nara Medical University, 840 Shijo-cho, Kashihara 634-8522, Nara, Japan
| | - Hiroaki Takya
- Department of Gastroenterology, Nara Medical University, 840 Shijo-cho, Kashihara 634-8522, Nara, Japan
| | - Kosuke Kaji
- Department of Gastroenterology, Nara Medical University, 840 Shijo-cho, Kashihara 634-8522, Nara, Japan
| | - Norihisa Nishimura
- Department of Gastroenterology, Nara Medical University, 840 Shijo-cho, Kashihara 634-8522, Nara, Japan
| | - Akihiko Shibamoto
- Department of Gastroenterology, Nara Medical University, 840 Shijo-cho, Kashihara 634-8522, Nara, Japan
| | - Shohei Asada
- Department of Gastroenterology, Nara Medical University, 840 Shijo-cho, Kashihara 634-8522, Nara, Japan
| | - Takahiro Kubo
- Department of Gastroenterology, Nara Medical University, 840 Shijo-cho, Kashihara 634-8522, Nara, Japan
| | - Satoshi Iwai
- Department of Gastroenterology, Nara Medical University, 840 Shijo-cho, Kashihara 634-8522, Nara, Japan
| | - Fumimasa Tomooka
- Department of Gastroenterology, Nara Medical University, 840 Shijo-cho, Kashihara 634-8522, Nara, Japan
| | - Soichi Takeda
- Department of Gastroenterology, Nara Medical University, 840 Shijo-cho, Kashihara 634-8522, Nara, Japan
| | - Aritoshi Koizumi
- Department of Gastroenterology, Nara Medical University, 840 Shijo-cho, Kashihara 634-8522, Nara, Japan
| | - Misako Tanaka
- Department of Gastroenterology, Nara Medical University, 840 Shijo-cho, Kashihara 634-8522, Nara, Japan
| | - Takuya Matsuda
- Department of Gastroenterology, Nara Medical University, 840 Shijo-cho, Kashihara 634-8522, Nara, Japan
| | - Takashi Inoue
- Department of Evidence-Based Medicine, Nara Medical University, 840 Shijo-cho, Kashihara 634-8522, Nara, Japan
| | - Yuki Fujimoto
- Department of Gastroenterology, Nara Medical University, 840 Shijo-cho, Kashihara 634-8522, Nara, Japan
| | - Yuki Tsuji
- Department of Gastroenterology, Nara Medical University, 840 Shijo-cho, Kashihara 634-8522, Nara, Japan
| | - Yukihisa Fujinaga
- Department of Gastroenterology, Nara Medical University, 840 Shijo-cho, Kashihara 634-8522, Nara, Japan
| | - Shinya Sato
- Department of Gastroenterology, Nara Medical University, 840 Shijo-cho, Kashihara 634-8522, Nara, Japan
| | - Koh Kitagawa
- Department of Gastroenterology, Nara Medical University, 840 Shijo-cho, Kashihara 634-8522, Nara, Japan
| | - Hideto Kawaratani
- Department of Gastroenterology, Nara Medical University, 840 Shijo-cho, Kashihara 634-8522, Nara, Japan
| | - Takemi Akahane
- Department of Gastroenterology, Nara Medical University, 840 Shijo-cho, Kashihara 634-8522, Nara, Japan
| | - Akira Mitoro
- Department of Gastroenterology, Nara Medical University, 840 Shijo-cho, Kashihara 634-8522, Nara, Japan
| | - Masanori Matsumoto
- Department of Hematology, Nara Medical University, 840 Shijo-cho, Kashihara 634-8522, Nara, Japan
| | - Kiyoshi Asada
- Clinical Research Center, Nara Medical University, Nara Medical University, 840 Shijo-cho, Kashihara 634-8522, Nara, Japan
| | - Hitoshi Yoshiji
- Department of Gastroenterology, Nara Medical University, 840 Shijo-cho, Kashihara 634-8522, Nara, Japan
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Kawahara N, Kawaguchi R, Yamamoto K, Nishikawa K, Matsuoka M, Maehana T, Fukui Y, Yamanaka S, Sugimoto S, Iwai K, Yamada Y, Kurakami H, Hirata T, Takashima R, Suzuki S, Asada K, Kasahara M, Kimura F. The clinical trial of alternative relugolix administration for uterine leiomyoma prior to surgically treatment: a study protocol for Non-Adverse Relugolix Administration (NARA) trial. Trials 2024; 25:68. [PMID: 38243317 PMCID: PMC10799434 DOI: 10.1186/s13063-024-07923-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Accepted: 01/09/2024] [Indexed: 01/21/2024] Open
Abstract
BACKGROUND Uterine leiomyomas are common for reproductive-aged women and affect women's quality of life due to heavy menstrual bleeding or dysmenorrhea. Leiomyomas grow according to estradiol exposure and decrease after post-menopause. In case serious symptoms are caused by leiomyomas, pharmacotherapy or surgical treatment is proposed. Prior to surgical treatment, pharmacotherapies aimed at the reduction of leiomyoma and uterine volume or improvement of anemia are introduced to conduct minimum invasive surgery (i.e., to reduce blood loss or surgical duration). Recently, relugolix (40 mg orally once daily) as a gonadotropin-releasing hormone (GnRH) receptor antagonist has proved its sufficient efficacy in suppressing estradiol levels without the transient estradiol flare-up compared with GnRH agonist. However, long-term administration should not be permitted liable to for climacteric disorder or osteoporosis, and evidence is lacking on the actual efficacy and extent of adverse effects of the every-other-day dosing regimen. This trial aimed to prove non-inferiority in volume reduction effect on leiomyoma and safety (i.e., reduction of adverse effects) by every-other-day administration after 2 months of everyday administration compared to daily administration throughout the duration. METHODS A minimization adaptive randomized control trial (RCT) will be conducted. Patients (over 20 years old) harboring leiomyoma who will be undergoing surgical treatment will be invited to participate. Patients who are enrolled in the intervention group will receive every-other-day administration for 16 weeks after 8 weeks of daily administration. Patients who are enrolled in the control group will receive daily throughout the 24 weeks. The primary outcome is the leiomyoma volume reduction, and the secondary endpoints are the reduction of uterine volume, the occurrence of the climacteric disorder, genital bleeding days, change rate of serum hormone or bone turnover markers, and bone mineral density after 24 weeks compared to before administration. DISCUSSION This study aims to prove both the non-inferiority in leiomyoma volume reduction and superiority in adverse effects occurrence reduction, which will provide a novel method to escape adverse effects while maintaining the effect of leiomyoma reduction. TRIAL REGISTRATION Japan Registry of Clinical Trials jRCTs051230078. Registered on 26 July 2023.
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Affiliation(s)
- Naoki Kawahara
- Department of Obstetrics and Gynecology, Nara Medical University, Kashihara, 634-8522, Japan.
| | - Ryuji Kawaguchi
- Department of Obstetrics and Gynecology, Nara Medical University, Kashihara, 634-8522, Japan
| | - Konosuke Yamamoto
- Department of Obstetrics and Gynecology, Nara Medical University, Kashihara, 634-8522, Japan
| | - Kyohei Nishikawa
- Department of Obstetrics and Gynecology, Nara Medical University, Kashihara, 634-8522, Japan
| | - Motoki Matsuoka
- Department of Obstetrics and Gynecology, Nara Medical University, Kashihara, 634-8522, Japan
| | - Tomoka Maehana
- Department of Obstetrics and Gynecology, Nara Medical University, Kashihara, 634-8522, Japan
| | - Yosuke Fukui
- Department of Obstetrics and Gynecology, Nara Medical University, Kashihara, 634-8522, Japan
| | - Shoichiro Yamanaka
- Department of Obstetrics and Gynecology, Nara Medical University, Kashihara, 634-8522, Japan
| | - Sumire Sugimoto
- Department of Obstetrics and Gynecology, Nara Medical University, Kashihara, 634-8522, Japan
| | - Kana Iwai
- Department of Obstetrics and Gynecology, Nara Medical University, Kashihara, 634-8522, Japan
| | - Yuki Yamada
- Department of Obstetrics and Gynecology, Nara Medical University, Kashihara, 634-8522, Japan
| | - Hiroyuki Kurakami
- Institute for Clinical and Translational Science, Nara Medical University, Kashihara, 634-8522, Japan
| | - Takumi Hirata
- Institute for Clinical and Translational Science, Nara Medical University, Kashihara, 634-8522, Japan
| | - Ryuzo Takashima
- Institute for Clinical and Translational Science, Nara Medical University, Kashihara, 634-8522, Japan
| | - Shota Suzuki
- Institute for Clinical and Translational Science, Nara Medical University, Kashihara, 634-8522, Japan
| | - Kiyoshi Asada
- Institute for Clinical and Translational Science, Nara Medical University, Kashihara, 634-8522, Japan
| | - Masato Kasahara
- Institute for Clinical and Translational Science, Nara Medical University, Kashihara, 634-8522, Japan
| | - Fuminori Kimura
- Department of Obstetrics and Gynecology, Nara Medical University, Kashihara, 634-8522, Japan
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Mano T, Asada K, Suzuki S, Kasama S, Kinugawa K, Sugie K, Kasahara M, Kido A. Feasibility and acceptability of novel functional electronic stimulated rehabilitation application for treatment in patients with cerebrovascular disorders: the FRAT study protocol. Pilot Feasibility Stud 2022; 8:258. [PMCID: PMC9749168 DOI: 10.1186/s40814-022-01217-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 11/29/2022] [Indexed: 12/15/2022] Open
Abstract
Abstract
Background
The prognosis of patients with cerebrovascular disorders is poor owing to their high residual rate of hemiplegia. Delayed withdrawal from synkinesis is a major cause of prolonged hemiplegia; however, effective rehabilitation has not been established. This single-arm, open-label study aims to evaluate the influence of a low-frequency treatment device on canceling synkinesis in patients with incomplete paralysis and cerebrovascular disorders.
Methods
Eligible participants will include patients aged 20 years or older with incomplete paralysis, defined as upper limb Brunnstrom stage (BRS) of 2–4, who are within 1 month of onset of a cerebrovascular disorder. Qualified patients will be assigned to the novel rehabilitation treatment with IVES+ for 4 weeks. The primary endpoint of the study is the change from baseline in the upper-limb Fugl-Meyer Assessment (FMA) 2 weeks after the start of treatment. The secondary endpoints are changes in the amount of Functional Independence Measure, changes in the amount of upper-limb BRS, and changes in the amount of Barthel Index (BI) compared to the pre-intervention value at weeks 2 and 4; changes in the upper-limb FMA scores at 1, 3, and 4 weeks; changes in grip strength compared to the pre-intervention values at 1, 2, 3, and 4 weeks; and changes in upper-limb strength (manual muscle test) compared to the pre-intervention values at 1, 2, 3, and 4 weeks.
Discussion
This study will explore the usefulness of IVES+ for recovery from motor paralysis in patients with cerebrovascular disorders.
Trial registration
Japanese Clinical Registry, jRCTs052180226. Date of registration: February 1, 2022
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Moriya K, Asada K, Suzuki S, Enomoto M, Fujinaga Y, Tsuji Y, Namisaki T, Yoshiji H. Benefit of glucosyl Hesperidin in patients with primary biliary cholangitis: A multicenter, open-label, randomized control study. Medicine (Baltimore) 2022; 101:e32127. [PMID: 36482520 PMCID: PMC9726400 DOI: 10.1097/md.0000000000032127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
INTRODUCTION Globally, the number of patients with primary biliary cholangitis (PBC) is increasing. Growing evidence suggests that oxidative stress plays a significant role in the pathogenesis of chronic liver disease regardless of its etiology. Hesperidin, a natural antioxidative substance derived from citrus peel, has been shown to have an anti-inflammatory effect in a rat arthritis model and may be a potential substance to attenuate intrahepatic inflammation in patients with PBC. In this study, the potential of glucosyl hesperidin as a therapeutic agent for PBC will be investigated through antioxidative stress mechanisms. METHODS Patients with PBC who are 20 years or older will be eligible to participate. Patients will be assigned to 1 of 2 groups and given either 500 or 1000 mg of glucosyl hesperidin per day. The primary endpoint is the ratio of changes in serum gamma-glutamyl transferase levels before and after 24 weeks of glucosyl hesperidin administration. The secondary endpoints are serum hepatobiliary enzyme levels (alkaline phosphatase, transaminase, and total bilirubin levels) and the protein expression levels of nuclear factor erythroid 2-related factor 2 and its target molecule 8, 16, and 24 weeks after administration compared to before administration. DISCUSSION The prospective clinical interventional study was designed to assess the supportive effect of glucosyl hesperidin on hepatic function in patients with PBC receiving basic ursodeoxycholic acid treatment.
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Affiliation(s)
- Kei Moriya
- Department of Gastroenterology and Hepatology, Nara Medical University, Kashihara, Nara, Japan
| | - Kiyoshi Asada
- Institute for Clinical and Translational Science, Nara Medical University, Kashihara, Nara, Japan
| | - Shota Suzuki
- Institute for Clinical and Translational Science, Nara Medical University, Kashihara, Nara, Japan
| | - Masahide Enomoto
- Department of Gastroenterology and Hepatology, Nara Medical University, Kashihara, Nara, Japan
| | - Yukihisa Fujinaga
- Department of Gastroenterology and Hepatology, Nara Medical University, Kashihara, Nara, Japan
| | - Yuki Tsuji
- Department of Gastroenterology and Hepatology, Nara Medical University, Kashihara, Nara, Japan
| | - Tadashi Namisaki
- Department of Gastroenterology and Hepatology, Nara Medical University, Kashihara, Nara, Japan
| | - Hitoshi Yoshiji
- Department of Gastroenterology and Hepatology, Nara Medical University, Kashihara, Nara, Japan
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5
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Asada K, Kanda T, Yamashita N, Asano M, Eguchi S. Interpreting stoichiometric homeostasis and flexibility of soil microbial biomass carbon, nitrogen, and phosphorus. Ecol Modell 2022. [DOI: 10.1016/j.ecolmodel.2022.110018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Murata K, Namisaki T, Fujimoto Y, Takeda S, Enomoto M, Takaya H, Tsuji Y, Shibamoto A, Suzuki J, Kubo T, Iwai S, Tomooka F, Tanaka M, Kaneko M, Asada S, Koizumi A, Yorioka N, Matsuda T, Ozutsumi T, Ishida K, Ogawa H, Takagi H, Fujinaga Y, Furukawa M, Sawada Y, Nishimura N, Kitagawa K, Sato S, Kaji K, Inoue T, Asada K, Kawaratani H, Moriya K, Akahane T, Mitoro A, Yoshiji H. Clinical Significance of Serum Zinc Levels on the Development of Sarcopenia in Cirrhotic Patients. Cancer Diagn Progn 2022; 2:184-193. [PMID: 35399181 PMCID: PMC8962814 DOI: 10.21873/cdp.10093] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 01/12/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND/AIM Sarcopenia increases the mortality in patients with cirrhosis. Approximately 60% of zinc is accumulated in skeletal muscle. We aimed to determine the role of subclinical zinc deficiency on sarcopenia development in patients with cirrhosis. PATIENTS AND METHODS We enrolled 151 patients with cirrhosis and divided them into the group with normal serum zinc levels (Group N: 80-130 μg/dl; n=38) and group with subclinical zinc deficiency (Group D: <80 μg/dl; n=113). The risk factors for sarcopenia were then investigated. RESULTS Group D had more sarcopenia cases than Group N (31.0% vs. 13.2%). In group D, HGS exhibited a weakly positive but significant correlation with serum zinc levels (R=0.287, p=0.00212), serum zinc levels negatively correlated with both ammonia and myostatin levels (R=-0.254, p=0.0078; R=-0.33, p<0.01), and low zinc levels were independently associated with sarcopenia development. CONCLUSION Patients with cirrhosis showing subclinical zinc deficiency have a significantly higher risk of developing sarcopenia.
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Affiliation(s)
- Koji Murata
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Tadashi Namisaki
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Yuki Fujimoto
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Soichi Takeda
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Masahide Enomoto
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Hiroaki Takaya
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Yuki Tsuji
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Akihiko Shibamoto
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Junya Suzuki
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Takahiro Kubo
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Satoshi Iwai
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Fumimasa Tomooka
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Misako Tanaka
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Miki Kaneko
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Shohei Asada
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Aritoshi Koizumi
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Nobuyuki Yorioka
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Takuya Matsuda
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Takahiro Ozutsumi
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Koji Ishida
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Hiroyuki Ogawa
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Hirotetsu Takagi
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Yukihisa Fujinaga
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Masanori Furukawa
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Yasuhiko Sawada
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Norihisa Nishimura
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Koh Kitagawa
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Shinya Sato
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Kosuke Kaji
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Takashi Inoue
- Institute for Clinical and Translational Science, Nara Medical University Hospital, Kashihara, Japan
| | - Kiyoshi Asada
- Institute for Clinical and Translational Science, Nara Medical University Hospital, Kashihara, Japan
| | - Hideto Kawaratani
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Kei Moriya
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Takemi Akahane
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Akira Mitoro
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Hitoshi Yoshiji
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
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Hattori N, Asada K, Miyajima N, Mori A, Nakanishi Y, Kimura K, Wakabayashi M, Takeshima H, Nitani C, Hara J, Ushijima T. Combination of a synthetic retinoid and a DNA demethylating agent induced differentiation of neuroblastoma through retinoic acid signal reprogramming. Br J Cancer 2021; 125:1647-1656. [PMID: 34635821 DOI: 10.1038/s41416-021-01571-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 09/16/2021] [Accepted: 09/29/2021] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND The CpG island methylator phenotype of neuroblastoma (NBL) is strongly associated with poor prognosis and can be targeted by 5-aza-2'-deoxycytidine (5-aza-dC). Differentiation therapy is a standard maintenance therapy for high-risk NBLs. However, the in vivo effect of tamibarotene, a synthetic retinoic acid, and the efficacy of its combination with 5-aza-dC have not been studied. Here, we conducted a preclinical study to assess the in vivo tamibarotene effect and the combination. METHODS Treatment effects were analysed by in vitro cell growth and differentiation state and by in vivo xenograft suppression. Demethylated genes were analysed by DNA methylation microarrays and geneset enrichment. RESULTS Tamibarotene monotherapy induced neural extension and upregulation of differentiation markers of NBL cells in vitro, and tumour regression without severe side effects in vivo. 5-Aza-dC monotherapy suppressed tumour growth both in vitro and in vivo, and induced demethylation of genes related to nervous system development and function. Pre-treatment with 5-aza-dC in vitro enhanced upregulation of differentiation markers and genes involved in retinoic acid signaling. Pre-treatment with 5-aza-dC in vivo significantly suppressed tumour growth and reduced the variation in tumour sizes. CONCLUSIONS Epigenetic drug-based differentiation therapy using 5-aza-dC and TBT is a promising strategy for refractory NBLs.
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Affiliation(s)
- Naoko Hattori
- Division of Epigenomics, National Cancer Center Research Institute, Tokyo, Japan.
| | - Kiyoshi Asada
- Division of Epigenomics, National Cancer Center Research Institute, Tokyo, Japan
| | - Nozomu Miyajima
- Division of Epigenomics, National Cancer Center Research Institute, Tokyo, Japan
| | - Akiko Mori
- Division of Epigenomics, National Cancer Center Research Institute, Tokyo, Japan
| | - Yoko Nakanishi
- Division of Epigenomics, National Cancer Center Research Institute, Tokyo, Japan
| | - Kana Kimura
- Division of Epigenomics, National Cancer Center Research Institute, Tokyo, Japan
| | - Mika Wakabayashi
- Division of Epigenomics, National Cancer Center Research Institute, Tokyo, Japan
| | - Hideyuki Takeshima
- Division of Epigenomics, National Cancer Center Research Institute, Tokyo, Japan
| | - Chika Nitani
- Department of Pediatric Hematology and Oncology, Osaka City General Hospital, Osaka, Japan
| | - Junichi Hara
- Department of Pediatric Hematology and Oncology, Osaka City General Hospital, Osaka, Japan
| | - Toshikazu Ushijima
- Division of Epigenomics, National Cancer Center Research Institute, Tokyo, Japan.
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Akamatsu T, Shimoda Y, Saigusa M, Yamamoto A, Morita S, Asada K, Shirai T. Use of virtual bronchoscopy to evaluate endobronchial TB. Int J Tuberc Lung Dis 2021; 25:145-147. [PMID: 33656427 DOI: 10.5588/ijtld.20.0376] [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] [Indexed: 11/10/2022] Open
Affiliation(s)
- T Akamatsu
- Department of Respiratory Medicine, Shizuoka General Hospital, Shizuoka, Japan
| | - Y Shimoda
- Department of Respiratory Medicine, Shizuoka General Hospital, Shizuoka, Japan
| | - M Saigusa
- Department of Respiratory Medicine, Shizuoka General Hospital, Shizuoka, Japan
| | - A Yamamoto
- Department of Respiratory Medicine, Shizuoka General Hospital, Shizuoka, Japan
| | - S Morita
- Department of Respiratory Medicine, Shizuoka General Hospital, Shizuoka, Japan
| | - K Asada
- Department of Respiratory Medicine, Shizuoka General Hospital, Shizuoka, Japan
| | - T Shirai
- Department of Respiratory Medicine, Shizuoka General Hospital, Shizuoka, Japan
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Noguchi R, Kaji K, Namisaki T, Moriya K, Kawaratani H, Kitade M, Takaya H, Aihara Y, Douhara A, Asada K, Nishimura N, Miyata T, Yoshiji H. Novel oral plasminogen activator inhibitor‑1 inhibitor TM5275 attenuates hepatic fibrosis under metabolic syndrome via suppression of activated hepatic stellate cells in rats. Mol Med Rep 2020; 22:2948-2956. [PMID: 32945412 PMCID: PMC7453658 DOI: 10.3892/mmr.2020.11360] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Accepted: 07/03/2020] [Indexed: 02/07/2023] Open
Abstract
An orally bioavailable small molecule inhibitor of plasminogen activator inhibitor-1 (PAI-1) is currently being clinically assessed as a novel antithrombotic agent. Although PAI-1 is known to serve a key role in the pathogenesis of metabolic syndrome (MetS) including nonalcoholic steatohepatitis (NASH), the pharmacological action of an oral PAI-1 inhibitor against the development of MetS-related liver fibrosis remains unclear. The current study was designed to explicate the effect of TM5275, an oral PAI-1 inhibitor, on MetS-related hepatic fibrogenesis. The in vivo antifibrotic effect of orally administered TM5275 was investigated in two different rat MetS models. Fischer 344 rats received a choline-deficient L-amino-acid-defined diet for 12 weeks to induce steatohepatitis with development of severe hepatic fibrosis. Otsuka Long-Evans Tokushima Fatty rats, used to model congenital diabetes, underwent intraperitoneal injection of porcine serum for 6 weeks to induce hepatic fibrosis under diabetic conditions. In each experimental model, TM5275 markedly ameliorated the development of hepatic fibrosis and suppressed the proliferation of activated hepatic stellate cells (HSCs). Additionally, the hepatic production of tumor growth factor (TGF)-β1 and total collagen was suppressed. In vitro assays revealed that TGF-β1 stimulated the upregulation of Serpine1 mRNA expression, which was inhibited by TM5275 treatment in cultured HSC-T6 cells, a rat HSC cell line. Furthermore, TM5275 substantially attenuated the TGF-β1-stimulated proliferative and fibrogenic activity of HSCs by inhibiting AKT phosphorylation. Collectively, TM5275 demonstrated an antifibrotic effect on liver fibrosis in different rat MetS models, suppressing TGF-β1-induced HSC proliferation and collagen synthesis. Thus, PAI-1 inhibitors may serve as effective future therapeutic agents against NASH-based hepatic fibrosis.
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Affiliation(s)
- Ryuichi Noguchi
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara 634‑8522, Japan
| | - Kosuke Kaji
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara 634‑8522, Japan
| | - Tadashi Namisaki
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara 634‑8522, Japan
| | - Kei Moriya
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara 634‑8522, Japan
| | - Hideto Kawaratani
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara 634‑8522, Japan
| | - Mitsuteru Kitade
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara 634‑8522, Japan
| | - Hiroaki Takaya
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara 634‑8522, Japan
| | - Yosuke Aihara
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara 634‑8522, Japan
| | - Akitoshi Douhara
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara 634‑8522, Japan
| | - Kiyoshi Asada
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara 634‑8522, Japan
| | - Norihisa Nishimura
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara 634‑8522, Japan
| | - Toshio Miyata
- United Centers for Advanced Research and Translational Medicine, Tohoku University Graduate School of Medicine, Sendai, Miyagi 980‑8575, Japan
| | - Hitoshi Yoshiji
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara 634‑8522, Japan
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10
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Shimozato N, Namisaki T, Kaji K, Kitade M, Okura Y, Sato S, Moriya K, Seki K, Kawaratani H, Takaya H, Sawada Y, Saikawa S, Nakanishi K, Furukawa M, Fujinaga Y, Kubo T, Asada K, Kitagawa K, Tsuji Y, Kaya D, Ozutsumi T, Akahane T, Mitoro A, Yoshiji H. Combined effect of a farnesoid X receptor agonist and dipeptidyl peptidase-4 inhibitor on hepatic fibrosis. Hepatol Res 2019; 49:1147-1161. [PMID: 31177586 DOI: 10.1111/hepr.13385] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [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: 12/28/2018] [Revised: 05/18/2019] [Accepted: 05/22/2019] [Indexed: 12/11/2022]
Abstract
AIM Non-alcoholic steatohepatitis (NASH) has a broad clinicopathological spectrum (inflammation to severe fibrosis). The farnesoid X receptor agonist obeticholic acid (OCA) ameliorates the histological features of NASH; satisfactory antifibrotic effects have not yet been reported. Here, we investigated the combined effects of OCA + a dipeptidyl peptidase-4 inhibitor (sitagliptin) on hepatic fibrogenesis in a rat model of NASH. METHODS Fifty Fischer 344 rats were fed a choline-deficient L-amino-acid-defined (CDAA) diet for 12 weeks. The in vitro and in vivo effects of OCA + sitagliptin were assessed along with hepatic fibrogenesis, lipopolysaccharide-Toll-like receptor 4 (TLR4) regulatory cascade and intestinal barrier function. Direct inhibitory effects of OCA + sitagliptin on activated hepatic stellate cells (Ac-HSCs) were assessed in vitro. RESULTS Treatment with OCA + sitagliptin potentially inhibited hepatic fibrogenesis along with Ac-HSC proliferation and hepatic transforming growth factor (TGF)-β1, α1(I)-procollagen, and tissue inhibitor of metalloproteinase-1 (TIMP-1) mRNA expression and hydroxyproline levels. Obeticholic acid inhibited hepatic TLR4 expression and increased hepatic matrix metalloproteinase-2 expression. Obeticholic acid decreased intestinal permeability by ameliorating CDAA diet-induced zonula occludens-1 disruption, whereas sitagliptin directly inhibited Ac-HSC proliferation. The in vitro suppressive effects of OCA + sitagliptin on TGF-β1 and α1(I)-procollagen mRNA expression and p38 phosphorylation in Ac-HSCs were almost consistent. Sitagliptin directly inhibited the regulation of Ac-HSC. CONCLUSIONS Treatment with OCA + sitagliptin synergistically affected hepatic fibrogenesis by counteracting endotoxemia induced by intestinal barrier dysfunction and suppressing Ac-HSC proliferation. Thus, OCA + sitagliptin could be a promising therapeutic strategy for NASH.
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Affiliation(s)
- Naotaka Shimozato
- Third Department of Internal Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Tadashi Namisaki
- Third Department of Internal Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Kosuke Kaji
- Third Department of Internal Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Mitsuteru Kitade
- Third Department of Internal Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Yasushi Okura
- Third Department of Internal Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Shinya Sato
- Third Department of Internal Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Kei Moriya
- Third Department of Internal Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Kenichiro Seki
- Third Department of Internal Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Hideto Kawaratani
- Third Department of Internal Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Hiroaki Takaya
- Third Department of Internal Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Yasuhiko Sawada
- Third Department of Internal Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Soichiro Saikawa
- Third Department of Internal Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Keisuke Nakanishi
- Third Department of Internal Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Masanori Furukawa
- Third Department of Internal Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Yukihisa Fujinaga
- Third Department of Internal Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Takuya Kubo
- Third Department of Internal Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Kiyoshi Asada
- Third Department of Internal Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Koh Kitagawa
- Third Department of Internal Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Yuki Tsuji
- Third Department of Internal Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Daisuke Kaya
- Third Department of Internal Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Takahiro Ozutsumi
- Third Department of Internal Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Takemi Akahane
- Third Department of Internal Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Akira Mitoro
- Third Department of Internal Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Hitoshi Yoshiji
- Third Department of Internal Medicine, Nara Medical University, Kashihara, Nara, Japan
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Yamaguchi T, Morikawa S, Yuko O, Asada K, Oguri T, Inui N, Ito K, Kimura T, Kunii E, Matsui T, Kubo A, Kato T, Shindo J, Tsuda T, Okuno M, Hida T, Imaizumi K. P083 Efficacy of EGFR-TKIs in Patients Harboring EGFR Mutations with Non-Adenocartinoma Histology. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.10.096] [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: 11/17/2022]
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Tanaka K, Inui N, Asada K, Abe T, Hataji O, Hayai S, Ito K, Imaizumi K, Kimura T, Kubo A, Kunii E, Murotani K, Okuno M, Oya Y, Shindoh J, Taniguchi H, Tsuda T, Yamaguchi T, Hida T, Suda T. Real-world data of EGFR minor mutated NSCLC treated with EGFR-TKI: Comparative analysis including compound mutation and de novo T790M mutation. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy425.032] [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: 11/12/2022] Open
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13
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Ito K, Murotani K, Kubo A, Kunii E, Taniguchi H, Shindo J, Asada K, Imaizumi K, Tanaka K, Inui N, Okuno M, Hataji O, Hayai S, Abe T, Kimura T, Tsuda T, Yamaguchi T, Oya Y, Yoshida T, Hida T. Comparative analysis of overall survival using propensity score between first- and second-generation EGFR-TKI: Real world data of 1354 patients with EGFR mutant NSCLC. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy292.077] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [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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14
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Seki K, Kitade M, Nishimura N, Kaji K, Asada K, Namisaki T, Moriya K, Kawaratani H, Okura Y, Takaya H, Sawada Y, Sato S, Nakanishi K, Yoshiji H. Oral administration of fructose exacerbates liver fibrosis and hepatocarcinogenesis via increased intestinal permeability in a rat steatohepatitis model. Oncotarget 2018; 9:28638-28651. [PMID: 29983886 PMCID: PMC6033350 DOI: 10.18632/oncotarget.25587] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Accepted: 05/24/2018] [Indexed: 02/07/2023] Open
Abstract
Recent reports have revealed the impact of a western diet containing large amounts of fructose on the pathogenesis of non-alcoholic steatohepatitis (NASH). Fructose exacerbates hepatic inflammation in NASH by inducing increasing intestinal permeability. However, it is not clear whether fructose contributes to the progression of liver fibrosis and hepatocarcinogenesis in NASH. The aim of this study was to investigate the effect of fructose intake on NASH in a rat model. A choline-deficient/L-amino acid diet was fed to F344 rats to induce NASH. Fructose was administrated to one group in the drinking water. The development of liver fibrosis and hepatocarcinogenesis were evaluated histologically. Oral fructose administration exacerbated liver fibrosis and increased the number of preneoplastic lesions positive for glutathione S-transferase placental form. Fructose-treated rats had significantly higher expression of hepatic genes related to toll-like receptor-signaling, suggesting that fructose consumption increased signaling in this pathway, leading to the progression of NASH. We confirmed that intestinal permeability was significantly higher in fructose-treated rats, as evidenced by a loss of intestinal tight junction proteins. Fructose exacerbated both liver fibrosis and hepatocarcinogenesis by increasing intestinal permeability. This observation strongly supports the role of endotoxin in the progression of NASH.
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Affiliation(s)
- Kenichiro Seki
- Third Department of Internal Medicine, Nara Medical University, Nara, Japan
| | - Mitsuteru Kitade
- Third Department of Internal Medicine, Nara Medical University, Nara, Japan
| | - Norihisa Nishimura
- Third Department of Internal Medicine, Nara Medical University, Nara, Japan
| | - Kosuke Kaji
- Third Department of Internal Medicine, Nara Medical University, Nara, Japan
| | - Kiyoshi Asada
- Third Department of Internal Medicine, Nara Medical University, Nara, Japan
| | - Tadashi Namisaki
- Third Department of Internal Medicine, Nara Medical University, Nara, Japan
| | - Kei Moriya
- Third Department of Internal Medicine, Nara Medical University, Nara, Japan
| | - Hideto Kawaratani
- Third Department of Internal Medicine, Nara Medical University, Nara, Japan
| | - Yasushi Okura
- Third Department of Internal Medicine, Nara Medical University, Nara, Japan
| | - Hiroaki Takaya
- Third Department of Internal Medicine, Nara Medical University, Nara, Japan
| | - Yasuhiko Sawada
- Third Department of Internal Medicine, Nara Medical University, Nara, Japan
| | - Shinya Sato
- Third Department of Internal Medicine, Nara Medical University, Nara, Japan
| | - Keisuke Nakanishi
- Third Department of Internal Medicine, Nara Medical University, Nara, Japan
| | - Hitoshi Yoshiji
- Third Department of Internal Medicine, Nara Medical University, Nara, Japan
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15
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Okura Y, Namisaki T, Moriya K, Kitade M, Takeda K, Kaji K, Noguchi R, Nishimura N, Seki K, Kawaratani H, Takaya H, Sato S, Sawada Y, Shimozato N, Furukawa M, Nakanishi K, Saikawa S, Kubo T, Asada K, Yoshiji H. Combined treatment with dipeptidyl peptidase-4 inhibitor (sitagliptin) and angiotensin-II type 1 receptor blocker (losartan) suppresses progression in a non-diabetic rat model of steatohepatitis. Hepatol Res 2017; 47:1317-1328. [PMID: 28029729 DOI: 10.1111/hepr.12860] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [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: 11/18/2016] [Revised: 12/23/2016] [Accepted: 12/26/2016] [Indexed: 02/08/2023]
Abstract
AIM Dipeptidyl peptidase-4 (DPP4) inhibitors (DPP4-I) are oral glucose-lowering drugs for type 2 diabetes mellitus. Previously, we reported that DPP4-I (sitagliptin) exerted suppressive effects on experimental liver fibrosis in rats. Blockade of the renin-angiotensin system by angiotensin-II type 1 receptor blocker (losartan), commonly used in the management of hypertension, has been shown to significantly alleviate hepatic fibrogenesis and carcinogenesis. We aimed to elucidate the effects and possible mechanisms of a sitagliptin + losartan combination on the progression of non-diabetic non-alcoholic steatohepatitis (NASH) in a rat model. METHODS To induce NASH, Fischer 344 rats were fed a choline-deficient L-amino acid-defined diet for 12 weeks. We elucidated the chemopreventive effects of sitagliptin + losartan, especially in conjunction with hepatic stellate cell (HSC) activation, angiogenesis, and oxidative stress, all known to play important roles in the progression of NASH. RESULTS Sitagliptin + losartan suppressed choline-deficient L-amino acid-defined diet-induced hepatic fibrogenesis and carcinogenesis. The combination treatment exerted a greater inhibitory effect than monotherapy. These inhibitory effects occurred almost concurrently with the suppression of HSC activation, neovascularization, and oxidative stress. In vitro studies showed that sitagliptin + losartan inhibited angiotensin II-induced proliferation and expression of transforming growth factor-β1 and α1 (I)-procollagen mRNA of activated HSC and in vitro angiogenesis, in parallel with the suppression observed in in vivo studies. CONCLUSIONS The widely and safely used sitagliptin + losartan combination treatment in clinical practice could be an effective strategy against NASH.
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Affiliation(s)
- Yasushi Okura
- Department of Endoscopy and Ultrasound, Nara Medical University, Kashihara, Nara, Japan
| | - Tadashi Namisaki
- Third Department of Internal Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Kei Moriya
- Third Department of Internal Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Mitsuteru Kitade
- Third Department of Internal Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Kosuke Takeda
- Third Department of Internal Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Kosuke Kaji
- Third Department of Internal Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Ryuichi Noguchi
- Third Department of Internal Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Norihisa Nishimura
- Third Department of Internal Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Kenichiro Seki
- Third Department of Internal Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Hideto Kawaratani
- Third Department of Internal Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Hiroaki Takaya
- Third Department of Internal Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Shinya Sato
- Third Department of Internal Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Yasuhiko Sawada
- Third Department of Internal Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Naotaka Shimozato
- Third Department of Internal Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Masanori Furukawa
- Third Department of Internal Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Keisuke Nakanishi
- Third Department of Internal Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Soichiro Saikawa
- Third Department of Internal Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Takuya Kubo
- Third Department of Internal Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Kiyoshi Asada
- Third Department of Internal Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Hitoshi Yoshiji
- Third Department of Internal Medicine, Nara Medical University, Kashihara, Nara, Japan
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16
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Namisaki T, Moriya K, Kitade M, Takeda K, Kaji K, Okura Y, Shimozato N, Sato S, Nishimura N, Seki K, Kawaratani H, Takaya H, Sawada Y, Akahane T, Saikawa S, Nakanishi K, Kubo T, Furukawa M, Noguchi R, Asada K, Kitagawa K, Ozutsumi T, Tsuji Y, Kaya D, Fujinaga Y, Yoshiji H. Effect of combined farnesoid X receptor agonist and angiotensin II type 1 receptor blocker on hepatic fibrosis. Hepatol Commun 2017; 1:928-945. [PMID: 29404501 PMCID: PMC5721465 DOI: 10.1002/hep4.1104] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2017] [Revised: 08/12/2017] [Accepted: 08/16/2017] [Indexed: 12/20/2022] Open
Abstract
The farnesoid X receptor (FXR) agonist, a bile acid‐activated nuclear receptor, has been shown to improve the histologic features of nonalcoholic steatohepatitis (NASH); however, a satisfactory effect on hepatic fibrosis has not been achieved. We aimed to investigate the combined effect of FXR agonist and angiotensin II type 1 receptor blocker on hepatic fibrogenesis in rat models of NASH. For 8 weeks, two rat models of NASH were developed. Otsuka Long‐Evans Tokushima Fatty (OLETF) rats were administered intraperitoneal injections of 1 mL/kg pig serum (PS) twice a week, whereas Fischer‐344 rats were fed a choline‐deficient, L‐amino acid‐defined diet (CDAA). The in vitro and in vivo effects of an FXR agonist (INT747) and an angiotensin II type 1 receptor blocker (losartan) on hepatic fibrogenesis were evaluated. In PS‐administered OLETF rats, INT747 and losartan had potent inhibitory effects on hepatic fibrogenesis with suppression of hepatic stellate cell (HSC) activation and expression of transforming growth factor β1 and toll‐like receptor 4. INT747 decreased intestinal permeability by ameliorating zonula occuludens‐1 disruption, whereas losartan directly suppressed activated‐HSC (Ac‐HSC) regulation. The in vitro inhibitory effects of INT747 and losartan on messenger RNA expressions of transforming growth factor β1, toll‐like receptor 4, and myeloid differentiation factor 88 and phosphorylation of nuclear factor‐κB and mothers against decapentaplegic homolog 3 in Ac‐HSC were almost in parallel. Losartan directly inhibited the regulation of Ac‐HSC. Likewise, INT747 in combination with losartan was beneficial on hepatic fibrogenesis in rats fed with CDAA diet. The therapeutic effects of these agents were almost comparable between PS‐administered OLETF and CDAA‐treated rats. Conclusion: INT747 and losartan synergistically suppressed hepatic fibrogenesis by reversing gut barrier dysfunction and inhibiting Ac‐HSC proliferation. Combined therapy may represent a promising novel approach for NASH. (Hepatology Communications 2017;1:928–945)
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Affiliation(s)
- Tadashi Namisaki
- Third Department of Internal Medicine Nara Medical University Kashihara Japan
| | - Kei Moriya
- Third Department of Internal Medicine Nara Medical University Kashihara Japan
| | - Mitsuteru Kitade
- Third Department of Internal Medicine Nara Medical University Kashihara Japan
| | - Kosuke Takeda
- Third Department of Internal Medicine Nara Medical University Kashihara Japan
| | - Kosuke Kaji
- Third Department of Internal Medicine Nara Medical University Kashihara Japan
| | - Yasushi Okura
- Third Department of Internal Medicine Nara Medical University Kashihara Japan
| | - Naotaka Shimozato
- Third Department of Internal Medicine Nara Medical University Kashihara Japan
| | - Shinya Sato
- Third Department of Internal Medicine Nara Medical University Kashihara Japan
| | - Norihisa Nishimura
- Third Department of Internal Medicine Nara Medical University Kashihara Japan
| | - Kenichiro Seki
- Third Department of Internal Medicine Nara Medical University Kashihara Japan
| | - Hideto Kawaratani
- Third Department of Internal Medicine Nara Medical University Kashihara Japan
| | - Hiroaki Takaya
- Third Department of Internal Medicine Nara Medical University Kashihara Japan
| | - Yasuhiko Sawada
- Third Department of Internal Medicine Nara Medical University Kashihara Japan
| | - Takemi Akahane
- Third Department of Internal Medicine Nara Medical University Kashihara Japan
| | - Soichiro Saikawa
- Third Department of Internal Medicine Nara Medical University Kashihara Japan
| | - Keisuke Nakanishi
- Third Department of Internal Medicine Nara Medical University Kashihara Japan
| | - Takuya Kubo
- Third Department of Internal Medicine Nara Medical University Kashihara Japan
| | - Masanori Furukawa
- Third Department of Internal Medicine Nara Medical University Kashihara Japan
| | - Ryuichi Noguchi
- Third Department of Internal Medicine Nara Medical University Kashihara Japan
| | - Kiyoshi Asada
- Third Department of Internal Medicine Nara Medical University Kashihara Japan
| | - Koh Kitagawa
- Third Department of Internal Medicine Nara Medical University Kashihara Japan
| | - Takahiro Ozutsumi
- Third Department of Internal Medicine Nara Medical University Kashihara Japan
| | - Yuki Tsuji
- Third Department of Internal Medicine Nara Medical University Kashihara Japan
| | - Daisuke Kaya
- Third Department of Internal Medicine Nara Medical University Kashihara Japan
| | - Yukihisa Fujinaga
- Third Department of Internal Medicine Nara Medical University Kashihara Japan
| | - Hitoshi Yoshiji
- Third Department of Internal Medicine Nara Medical University Kashihara Japan
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17
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Maeda M, Nakajima T, Oda I, Shimazu T, Yamamichi N, Maekita T, Asada K, Yokoi C, Ando T, Yoshida T, Nanjo S, Fujishiro M, Gotoda T, Ichinose M, Ushijima T. High impact of methylation accumulation on metachronous gastric cancer: 5-year follow-up of a multicentre prospective cohort study. Gut 2017; 66:1721-1723. [PMID: 28003322 PMCID: PMC5561365 DOI: 10.1136/gutjnl-2016-313387] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Revised: 11/18/2016] [Accepted: 11/23/2016] [Indexed: 12/30/2022]
Affiliation(s)
- Masahiro Maeda
- Division of Epigenomics, National Cancer Center Research Institute, Tokyo, Japan,Department of Gastrointestinal Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Takeshi Nakajima
- Endoscopy Division, National Cancer Center Hospital, Tokyo, Japan
| | - Ichiro Oda
- Endoscopy Division, National Cancer Center Hospital, Tokyo, Japan
| | - Taichi Shimazu
- Prevention Division, Center for Public Health Sciences, National Cancer Center, Tokyo, Japan
| | | | - Takao Maekita
- Second Department of Internal Medicine, Wakayama Medical University, Wakayama, Japan
| | - Kiyoshi Asada
- Division of Epigenomics, National Cancer Center Research Institute, Tokyo, Japan
| | - Chizu Yokoi
- Endoscopy Division, National Cancer Center Hospital, Tokyo, Japan,Department of Gastroenterology and Hepatology, National Center for Global Health and Medicine, Tokyo, Japan
| | - Takayuki Ando
- Division of Epigenomics, National Cancer Center Research Institute, Tokyo, Japan
| | - Takeichi Yoshida
- Second Department of Internal Medicine, Wakayama Medical University, Wakayama, Japan
| | - Sohachi Nanjo
- Division of Epigenomics, National Cancer Center Research Institute, Tokyo, Japan
| | | | - Takuji Gotoda
- Endoscopy Division, National Cancer Center Hospital, Tokyo, Japan,Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Masao Ichinose
- Second Department of Internal Medicine, Wakayama Medical University, Wakayama, Japan
| | - Toshikazu Ushijima
- Division of Epigenomics, National Cancer Center Research Institute, Tokyo, Japan
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18
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Hirai K, Shirai T, Suzuki M, Akamatsu T, Suzuki T, Hayashi I, Yamamoto A, Akita T, Morita S, Asada K, Tsuji D, Inoue K, Itoh K. A clustering approach to identify and characterize the asthma and chronic obstructive pulmonary disease overlap phenotype. Clin Exp Allergy 2017; 47:1374-1382. [PMID: 28658564 DOI: 10.1111/cea.12970] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Revised: 06/05/2017] [Accepted: 06/22/2017] [Indexed: 12/20/2022]
Abstract
BACKGROUND Asthma and chronic obstructive pulmonary disease (COPD) are heterogeneous diseases. The phenotypes that have clinical features of both asthma and COPD are still incompletely understood. OBJECTIVE To clarify the best discriminators of the asthma-COPD overlap phenotype from asthma and COPD subgroups using a clustering approach. METHODS This study assessed pathophysiological parameters, including mRNA expression levels of T helper cell-related transcription factors, namely TBX21 (Th1), GATA3 (Th2), RORC (Th17) and FOXP3 (Treg), in peripheral blood mononuclear cells in asthma patients (n=152) and in COPD patients (n=50). Clusters were determined using k-means clustering. Exacerbations of asthma and COPD were recorded during the 1-year follow-up period. RESULTS The cluster analysis revealed four biological clusters: cluster 1, predominantly patients with COPD; cluster 2, patients with an asthma-COPD overlap phenotype; cluster 3, patients with non-atopic and late-onset asthma; and cluster 4, patients with early-onset atopic asthma. Hazard ratios for exacerbation were 2.5 (95% confidence interval [CI], 1.1-5.6) in cluster 1 and 2.3 (95% CI, 1.0-5.0) in cluster 2 compared with patients in other clusters. Cluster 2 was discriminated from other clusters by total serum IgE level ≥310 IU/mL, blood eosinophil counts ≥280 cells/μL, a higher ratio of TBX21/GATA3, FEV1 /FVC ratio <0.67 and smoking ≥10 pack-years with an area under the curve of 0.94 (95% CI, 0.90-0.98) in the receiver operating characteristic analysis. CONCLUSIONS AND CLINICAL RELEVANCE The asthma-COPD overlap phenotype was characterized by peripheral blood eosinophilia and higher levels of IgE despite the Th2-low endotype.
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Affiliation(s)
- K Hirai
- Department of Clinical Pharmacology & Genetics, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka, Japan.,Laboratory of Clinical Pharmacogenomics, Shizuoka General Hospital, Shizuoka, Japan
| | - T Shirai
- Department of Respiratory Medicine, Shizuoka General Hospital, Shizuoka, Japan
| | - M Suzuki
- Department of Clinical Pharmacology & Genetics, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka, Japan
| | - T Akamatsu
- Department of Respiratory Medicine, Shizuoka General Hospital, Shizuoka, Japan
| | - T Suzuki
- Department of Respiratory Medicine, Shizuoka General Hospital, Shizuoka, Japan
| | - I Hayashi
- Department of Respiratory Medicine, Shizuoka General Hospital, Shizuoka, Japan
| | - A Yamamoto
- Department of Respiratory Medicine, Shizuoka General Hospital, Shizuoka, Japan
| | - T Akita
- Department of Respiratory Medicine, Shizuoka General Hospital, Shizuoka, Japan
| | - S Morita
- Department of Respiratory Medicine, Shizuoka General Hospital, Shizuoka, Japan
| | - K Asada
- Department of Respiratory Medicine, Shizuoka General Hospital, Shizuoka, Japan
| | - D Tsuji
- Department of Clinical Pharmacology & Genetics, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka, Japan.,Laboratory of Clinical Pharmacogenomics, Shizuoka General Hospital, Shizuoka, Japan
| | - K Inoue
- Department of Clinical Pharmacology & Genetics, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka, Japan.,Laboratory of Clinical Pharmacogenomics, Shizuoka General Hospital, Shizuoka, Japan
| | - K Itoh
- Department of Clinical Pharmacology & Genetics, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka, Japan.,Laboratory of Clinical Pharmacogenomics, Shizuoka General Hospital, Shizuoka, Japan
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Maeda M, Nakajima T, Oda I, Shimazu T, Yamamichi N, Maekita T, Asada K, Yokoi C, Ando T, Yoshida T, Nanjo S, Fujishiro M, Gotoda T, Ichinose M, Ushijima T. Abstract LB-092: High impact of methylation accumulation on cancer risk: 5-year follow-up of a multicenter prospective cohort study. Cancer Res 2017. [DOI: 10.1158/1538-7445.am2017-lb-092] [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: 11/16/2022]
Abstract
Abstract
Aberrant DNA methylation can be accumulated in normal-appearing tissues, and its degree can be correlated with cancer risk [Hattori, Genome Med, 8:10, 2016]. Such accumulation is especially prominent in inflammation-associated cancers, including gastric cancer. To bring the findings into cancer risk diagnosis, we conducted a multicenter prospective cohort study with 826 patients [Asada, Gut, 64:388, 2015].
Between 2008 and 2010, 826 patients after endoscopic treatment of gastric cancer and without current H. pylori infection were enrolled, and a gastric biopsy was collected. Methylation levels of pre-defined three marker genes (miR-124a-3, EMX1 and NKX6-1) were measured by quantitative methylation-specific PCR. Patients were classified into quartiles according to methylation levels of individual genes (Q1, the lowest; Q4, the highest).
Among the 826 enrolled patients, 795 patients received annual follow-ups by endoscopy with a median period of 5.46 years (interquartile range: 3.95 - 6.09). By the end, 133 patients developed a metachronous gastric cancer, and 116 of them developed a cancer after 1 year of the enrollment (authentic metachronous cancer). Kaplan-Meier analysis showed that Q4 had a higher cumulative incidence of metachronous gastric cancer than Q1 with p-values of <0.001 to 0.004 (log-rank test). Multivariate analyses adjusted for hospital, gender and age, pepsinogen index, history of endoscopic treatment, smoking and green vegetable intake also showed that Q4 had significantly high HRs compared with Q1, being 3.0 (95%CI: 1.58 to 5.72, p=0.0017) for miR-124a-3 [Maeda, Gut, online].
The results clearly showed that accumulation levels of aberrant DNA methylation can be used for cancer risk diagnosis. Even among the patients who carried a high risk of metachronous gastric cancer, cancer risk stratification was achieved. The strong influence of methylation accumulation on gastric cancer risk indicated a large contribution of aberrant DNA methylation to H. pylori infection-induced gastric carcinogenesis. Epigenetic cancer risk diagnosis is now becoming real.
Citation Format: Masahiro Maeda, Takeshi Nakajima, Ichiro Oda, Taichi Shimazu, Nobutake Yamamichi, Takao Maekita, Kiyoshi Asada, Chizu Yokoi, Takayuki Ando, Takeichi Yoshida, Sohachi Nanjo, Mitsuhiro Fujishiro, Takuji Gotoda, Masao Ichinose, Toshikazu Ushijima. High impact of methylation accumulation on cancer risk: 5-year follow-up of a multicenter prospective cohort study [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2017; 2017 Apr 1-5; Washington, DC. Philadelphia (PA): AACR; Cancer Res 2017;77(13 Suppl):Abstract nr LB-092. doi:10.1158/1538-7445.AM2017-LB-092
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Affiliation(s)
| | | | - Ichiro Oda
- 2National Cancer Ctr. Hospital, Tokyo, Japan
| | - Taichi Shimazu
- 3Center for Public Health Sciences, National Cancer Ctr., Tokyo, Japan
| | | | | | | | - Chizu Yokoi
- 2National Cancer Ctr. Hospital, Tokyo, Japan
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Hasegawa K, Matsushita H, Oda K, Yamamoto S, Nishijima A, Imai Y, Asada K, Ikeda Y, Fujiwara K, Aburatani H, Kakimi K. Immunoediting, neoantigen frequency, and clinical outcome in patients with ovarian clear cell carcinoma. Gynecol Oncol 2017. [DOI: 10.1016/j.ygyno.2017.03.039] [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: 10/19/2022]
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21
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Nishimura N, Kitade M, Noguchi R, Namisaki T, Moriya K, Takeda K, Okura Y, Aihara Y, Douhara A, Kawaratani H, Asada K, Yoshiji H. Ipragliflozin, a sodium-glucose cotransporter 2 inhibitor, ameliorates the development of liver fibrosis in diabetic Otsuka Long-Evans Tokushima fatty rats. J Gastroenterol 2016; 51:1141-1149. [PMID: 27025708 DOI: 10.1007/s00535-016-1200-6] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [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: 08/17/2015] [Accepted: 03/10/2016] [Indexed: 02/04/2023]
Abstract
BACKGROUND It is widely understood that insulin resistance (IR) critically correlates with the development of liver fibrosis in several types of chronic liver injuries. Several experiments have proved that anti-IR treatment can alleviate liver fibrosis. Sodium-glucose cotransporter 2 (SGLT2) inhibitors comprise a new class of antidiabetic agents that inhibit glucose reabsorption in the renal proximal tubules, improving IR. The aim of this study was to elucidate the effect of an SGLT2 inhibitor on the development of liver fibrosis using obese diabetic Otsuka Long-Evans Tokushima fatty (OLETF) rats and their littermate nondiabetic Long-Evans Tokushima Otsuka (LETO) rats. METHODS Male OLETF and LETO rats were intraperitoneally injected with porcine serum twice a week for 12 weeks to augment liver fibrogenesis. Different concentrations of ipragliflozin (3 and 6 mg/kg) were orally administered during the experimental period. Serological and histological data were examined at the end of the experimental period. The direct effect of ipragliflozin on the proliferation of a human hepatic stellate cell (HSC) line, LX-2, was also evaluated in vitro. RESULTS OLETF rats, but not LETO rats, received 12 weeks of porcine serum injection to induce severe fibrosis. Treatment with ipragliflozin markedly attenuated the development of liver fibrosis and expression of hepatic fibrosis markers, such as alpha smooth muscle actin, collagen 1A1, and transforming growth factor beta (TGF-β), and improved IR in a dose-dependent manner in OLETF rats. In contrast, the proliferation of LX-2 in vitro was not affected, suggesting that ipragliflozin had no significant direct effect on the proliferation of HSCs. CONCLUSION In conclusion, our dataset suggests that an SGLT2 inhibitor could alleviate the development of liver fibrosis by improving IR in naturally diabetic rats. This may provide the basis for creating new therapeutic strategies for chronic liver injuries with IR.
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Affiliation(s)
- Norihisa Nishimura
- Third Department of Internal Medicine, Nara Medical University, Kashihara, 840 Shijo-cho, Kashihara, Nara, 634-8521, Japan
| | - Mitsuteru Kitade
- Third Department of Internal Medicine, Nara Medical University, Kashihara, 840 Shijo-cho, Kashihara, Nara, 634-8521, Japan.
| | - Ryuichi Noguchi
- Third Department of Internal Medicine, Nara Medical University, Kashihara, 840 Shijo-cho, Kashihara, Nara, 634-8521, Japan
| | - Tadashi Namisaki
- Third Department of Internal Medicine, Nara Medical University, Kashihara, 840 Shijo-cho, Kashihara, Nara, 634-8521, Japan
| | - Kei Moriya
- Third Department of Internal Medicine, Nara Medical University, Kashihara, 840 Shijo-cho, Kashihara, Nara, 634-8521, Japan
| | - Kosuke Takeda
- Third Department of Internal Medicine, Nara Medical University, Kashihara, 840 Shijo-cho, Kashihara, Nara, 634-8521, Japan
| | - Yasushi Okura
- Third Department of Internal Medicine, Nara Medical University, Kashihara, 840 Shijo-cho, Kashihara, Nara, 634-8521, Japan
| | - Yosuke Aihara
- Third Department of Internal Medicine, Nara Medical University, Kashihara, 840 Shijo-cho, Kashihara, Nara, 634-8521, Japan
| | - Akitoshi Douhara
- Third Department of Internal Medicine, Nara Medical University, Kashihara, 840 Shijo-cho, Kashihara, Nara, 634-8521, Japan
| | - Hideto Kawaratani
- Third Department of Internal Medicine, Nara Medical University, Kashihara, 840 Shijo-cho, Kashihara, Nara, 634-8521, Japan
| | - Kiyoshi Asada
- Third Department of Internal Medicine, Nara Medical University, Kashihara, 840 Shijo-cho, Kashihara, Nara, 634-8521, Japan
| | - Hitoshi Yoshiji
- Third Department of Internal Medicine, Nara Medical University, Kashihara, 840 Shijo-cho, Kashihara, Nara, 634-8521, Japan
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Asada K, Aihara Y, Takaya H, Noguchi R, Namisaki T, Moriya K, Uejima M, Kitade M, Mashitani T, Takeda K, Kawaratani H, Okura Y, Kaji K, Douhara A, Sawada Y, Nishimura N, Seki K, Mitoro A, Yamao J, Yoshiji H. DNA methylation of angiotensin II receptor gene in nonalcoholic steatohepatitis-related liver fibrosis. World J Hepatol 2016; 8:1194-1199. [PMID: 27729955 PMCID: PMC5055588 DOI: 10.4254/wjh.v8.i28.1194] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Revised: 07/08/2016] [Accepted: 08/29/2016] [Indexed: 02/06/2023] Open
Abstract
AIM To clarify whether Agtr1a methylation is involved in the development of nonalcoholic steatohepatitis (NASH)-related liver fibrosis in adult rats.
METHODS A choline-deficient amino acid (CDAA) diet model was employed for methylation analysis of NASH-related liver fibrosis. Agtr1a methylation levels were measured in the livers of CDAA- and control choline-sufficient amino acid (CSAA)-fed rats for 8 and 12 wk using quantitative methylation-specific PCR. Hepatic stellate cells (HSCs) were isolated by collagenase digestion of the liver, followed by centrifugation of the crude cell suspension through a density gradient. Agtr1a methylation and its gene expression were also analyzed during the activation of HSCs.
RESULTS The mean levels of Agtr1a methylation in the livers of CDAA-fed rats (11.5% and 18.6% at 8 and 12 wk, respectively) tended to be higher (P = 0.06 and 0.09, respectively) than those in the livers of CSAA-fed rats (2.1% and 5.3% at 8 and 12 wk, respectively). Agtr1a was not methylated at all in quiescent HSCs, but was clearly methylated in activated HSCs (13.8%, P < 0.01). Interestingly, although Agtr1a was hypermethylated, the Agtr1a mRNA level increased up to 2.2-fold (P < 0.05) in activated HSCs compared with that in quiescent HSCs, suggesting that Agtr1a methylation did not silence its expression but instead had the potential to upregulate its expression. These findings indicate that Agtr1a methylation and its upregulation of gene expression are associated with the development of NASH-related liver fibrosis.
CONCLUSION This is the first study to show that DNA methylation is potentially involved in the regulation of a renin-angiotensin system-related gene expression during liver fibrosis.
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Abstract
Four patients with anomalous lobes of the liver were observed at MR imaging. In one patient the anterior segment of the right hepatic lobe was absent and in 3 patients the left hepatic lobe was anomalous. The hepatic vasculature supporting the information of the anomalous hepatic lobes was well observed in all patients.
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Affiliation(s)
- Y. Kakitsubata
- Department of Radiology, Miyazaki Medical College, Miyazaki, Japan
| | - S. Kakitsubata
- Department of Radiology, Miyazaki Medical College, Miyazaki, Japan
| | - K. Asada
- Department of Radiology, Miyazaki Medical College, Miyazaki, Japan
| | - R. Ochiai
- Department of Radiology, Miyazaki Medical College, Miyazaki, Japan
| | - K. Watanabe
- Department of Radiology, Miyazaki Medical College, Miyazaki, Japan
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Ushijima T, Asada K, Maeda M, Nakajima T, Shimazu T. Abstract 4460: Precision cancer risk diagnosis by accumulation of epigenetic alterations. Cancer Res 2016. [DOI: 10.1158/1538-7445.am2016-4460] [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: 11/16/2022]
Abstract
Abstract
Background and Aim: Aberrant DNA methylation is induced by chronic inflammation, and can be accumulated in normal-appearing tissues [reviewed in Ushijima and Hattori, Clin Cancer Res, 2:143, 2012]. Cross-sectional studies have shown that the degree of accumulation of aberrant DNA methylation was correlated with cancer risk, especially inflammation-associated cancers. In this study, we aimed to demonstrate that cancer risk can be predicted by an epigenetic cancer risk marker by a multicenter prospective cohort study.
Methods: We enrolled 826 patients with early gastric cancer, aged 40-80 years, who had undergone endoscopic resection. If a patient had active Helicobacter pylori (H. pylori) infection, the patient was enrolled after eradication of H. pylori. At the time of enrollment, one gastric biopsy was taken, and methylation levels of three preselected genes, miR-124a-3, EMX1 and NKX6-1, were measured by quantitative methylation-specific PCR. The patients were followed up annually by endoscopy to detect metachronous gastric cancer. To exclude cancers undetected at the time of enrollment, “authentic” metachronous gastric cancers were defined as those developed 1 year after enrollment.
Results: With a median follow-up of 2.97 years, 782 of 826 patients had at least one follow-up. Authentic metachronous gastric cancers developed in 66 patients: 29, 16 and 21 patients at 1-2, 2-3 and ≥3 years after the enrollment, respectively. The highest quartile of the miR-124a-3 methylation level had a significantly high HR in univariate analysis (95% CI) [2.17 (1.07 - 4.41); p = 0.032] and adjusted HR in multivariate analysis [2.30 (1.03 - 5.10); p = 0.042] [Asada et al, Gut, 64:388, 2015]. More importantly, with a median follow-up of 4.84 years, a multivariate analysis yielded a larger HR [2.79 (1.34 - 5.81)] with a smaller p value (0.0061).
Conclusions: This study, for the first time, demonstrated the usefulness of an epigenetic cancer risk marker by a multicenter prospective cohort study. DNA methylation accumulated in normal-appearing tissues was considered to be highly useful for precision cancer risk diagnosis.
Citation Format: Toshikazu Ushijima, Kiyoshi Asada, Masahiro Maeda, Takeshi Nakajima, Taichi Shimazu. Precision cancer risk diagnosis by accumulation of epigenetic alterations. [abstract]. In: Proceedings of the 107th Annual Meeting of the American Association for Cancer Research; 2016 Apr 16-20; New Orleans, LA. Philadelphia (PA): AACR; Cancer Res 2016;76(14 Suppl):Abstract nr 4460.
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Hattori N, Mori A, Kimura K, Kubo E, Asada K, Kawamoto H, Ushijima T. Abstract LB-245: Preclinical study of epigenetic drug-based differentiation therapy for neuroblastoma. Cancer Res 2016. [DOI: 10.1158/1538-7445.am2016-lb-245] [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: 11/16/2022]
Abstract
Abstract
Neuroblastoma (NBL) is the most common extracranial solid tumor in children. We previously reported that the CpG island methylator phenotype (CIMP) of NBL was strongly associated with poor prognosis, and also suggested that CIMP may be a possible target for DNA demethylation therapy. Differentiation therapy with 13-cis-retinoic acid has already been established as the standard for high-risk NBLs in the USA.
In this study, we aimed to establish an “epigenetic drug-based differentiation therapy” using a combination of a DNA demethylating agent (5-aza-2’-deoxycytidine: 5-Aza-CdR) and a differentiation agent (tamibarotene: TBT), a new synthetic retinoid. Treatment with 5-Aza-CdR suppressed the growth of 12 NBL cell lines by increasing the number of cells in the S-phase. Genome-wide DNA methylation analysis revealed that 5-Aza-CdR treatment induced global DNA hypomethylation, and that genes related to cell death and neurological processes were enriched as hypomethylated genes, suggesting that DNA demethylation therapy might assist the differentiation agent in inducing neuron differentiation. TBT induced differentiation of five NBL cell lines along with induction of neural extension and upregulation of differentiation markers, such as HOXD4, NGFR, and NTRK1. Pretreatment with 5-Aza-CdR increased the expression levels of differentiation markers, indicating that 5-Aza-CdR enhanced TBT-induced differentiation in vitro. Finally, the tumor suppression effect of 5-Aza-CdR and TBT in vivo was investigated using a mouse xenograft model of KELLY and NB-1 cell lines. Although a synergistic effect of 5-Aza-CdR and TBT was not apparent, they could induce significant tumor regression without severe side-effects.
From these data, we concluded that 5-Aza-CdR and TBT had antitumor activity in vitro and in vivo, and that epigenetic drug-based differentiation therapy is a promising therapeutic strategy for NBL.
Citation Format: Naoko Hattori, Akiko Mori, Kana Kimura, Emi Kubo, Kiyoshi Asada, Hiroshi Kawamoto, Toshikazu Ushijima. Preclinical study of epigenetic drug-based differentiation therapy for neuroblastoma. [abstract]. In: Proceedings of the 107th Annual Meeting of the American Association for Cancer Research; 2016 Apr 16-20; New Orleans, LA. Philadelphia (PA): AACR; Cancer Res 2016;76(14 Suppl):Abstract nr LB-245.
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Affiliation(s)
- Naoko Hattori
- 1National Cancer Center Research Institute, Tokyo, Japan
| | - Akiko Mori
- 1National Cancer Center Research Institute, Tokyo, Japan
| | - Kana Kimura
- 1National Cancer Center Research Institute, Tokyo, Japan
| | - Emi Kubo
- 1National Cancer Center Research Institute, Tokyo, Japan
| | - Kiyoshi Asada
- 1National Cancer Center Research Institute, Tokyo, Japan
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Mori G, Nakajima T, Asada K, Shimazu T, Yamamichi N, Maekita T, Yokoi C, Fujishiro M, Gotoda T, Ichinose M, Ushijima T, Oda I. Incidence of and risk factors for metachronous gastric cancer after endoscopic resection and successful Helicobacter pylori eradication: results of a large-scale, multicenter cohort study in Japan. Gastric Cancer 2016; 19:911-8. [PMID: 26420267 DOI: 10.1007/s10120-015-0544-6] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [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: 05/28/2015] [Accepted: 09/07/2015] [Indexed: 02/06/2023]
Abstract
BACKGROUND A previous multicenter prospective randomized study from Japan showed that Helicobacter pylori eradication reduced the development of metachronous gastric cancer (MGC) after endoscopic resection for early gastric cancer. MGC risk, however, is not eliminated; yet few studies have evaluated its long-term incidence and risk factors. In this study, we investigated the incidence of and risk factors for MGC in patients who underwent endoscopic resection for early gastric cancer with successful H. pylori eradication. METHODS A total of 594 patients who underwent endoscopic resection for early gastric cancer and successful H. pylori eradication at three institutions (National Cancer Center Hospital, University of Tokyo Hospital, and Wakayama Medical University Hospital) were analyzed retrospectively. Annual endoscopic surveillance was performed after initial endoscopic resection. MGC was defined as a gastric cancer newly detected at least 1 year after successful H. pylori eradication. RESULTS Ninety-four MGCs were detected in 79 patients during the 4.5-year median follow-up period. Kaplan-Meier analysis showed the cumulative incidence of MGC 5 years after successful H. pylori eradication was 15.0 %; the incidence of MGC calculated by use of the person-year method was 29.9 cases per 1000 person-years. Multivariate analysis using the Cox proportional hazards model revealed that male sex, severe gastric mucosal atrophy, and multiple gastric cancers before successful H. pylori eradication were independent risk factors for MGC. Eleven percent of MGCs (10 of 94) were detected more than 5 years after successful H. pylori eradication. CONCLUSION Surveillance endoscopy for MGC in patients who have undergone endoscopic resection for early gastric cancer should be performed even after successful H. pylori eradication.
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Affiliation(s)
- Genki Mori
- Endoscopy Division, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Takeshi Nakajima
- Endoscopy Division, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan.
| | - Kiyoshi Asada
- Division of Epigenomics, National Cancer Center Research Institute, Tokyo, Japan
| | - Taichi Shimazu
- Epidemiology and Prevention Group, Research Center for Cancer Prevention and Screening, National Cancer Center, Tokyo, Japan
| | | | - Takao Maekita
- Second Department of Internal Medicine, Wakayama Medical University, Wakayama, Japan
| | - Chizu Yokoi
- Department of Gastroenterology and Hepatology, National Center for Global Health and Medicine, Tokyo, Japan
| | | | - Takuji Gotoda
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Masao Ichinose
- Second Department of Internal Medicine, Wakayama Medical University, Wakayama, Japan
| | - Toshikazu Ushijima
- Division of Epigenomics, National Cancer Center Research Institute, Tokyo, Japan
| | - Ichiro Oda
- Endoscopy Division, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
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Saigusa M, Sakurai S, Akamatsu T, Yamamoto A, Shishido Y, Akita T, Morita S, Asada K, Shirai T, Eto T. 184P: The efficacy and safety of amrubicin in non-small-cell lung cancer patients beyond third-line therapy. J Thorac Oncol 2016. [DOI: 10.1016/s1556-0864(16)30294-5] [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: 11/24/2022]
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Aramaki E, Shikata S, Miyabe M, Usuda Y, Asada K, Ayaya S, Kumagaya S. Understanding the Relationship between Social Cognition and Word Difficulty. A Language Based Analysis of Individuals with Autism Spectrum Disorder. Methods Inf Med 2015; 54:522-9. [PMID: 26391807 DOI: 10.3414/me15-01-0038] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2015] [Accepted: 06/11/2015] [Indexed: 11/09/2022]
Abstract
BACKGROUND Few quantitative studies have been conducted on the relationship between society and its languages. Individuals with autistic spectrum disorder (ASD) are known to experience social hardships, and a wide range of clinical information about their quality of life has been provided through numerous narrative analyses. However, the narratives of ASD patients have thus far been examined mainly through qualitative approaches. OBJECTIVES In this study, we analyzed adults with ASD to quantitatively examine the relationship between language abilities and ASD severity scores. METHODS We generated phonetic transcriptions of speeches by 16 ASD adults at an ASD workshop, and divided the participants into 2 groups according to their Social Responsiveness Scale(TM), 2nd Edition (SRS(TM)-2) scores (where higher scores represent more severe ASD): Group A comprised high-scoring ASD adults (SRS(TM)-2 score: ≥ 76) and Group B comprised low- and intermediate-scoring ASD adults (SRS(TM)-2 score: < 76). Using natural language processing (NLP)-based analytical methods, the narratives were converted into numerical data according to four language ability indicators, and the relationships between the language ability scores and ASD severity scores were compared. RESULTS AND DISCUSSION Group A showed a marginally negative correlation with the level of Japanese word difficulty (p < .10), while the "social cognition" subscale of the SRS(TM)-2 score showed a significantly negative correlation (p < .05) with word difficulty. When comparing only male participants, Group A demonstrated a significantly lower correlation with word difficulty level than Group B (p < .10). CONCLUSION Social communication was found to be strongly associated with the level of word difficulty in speech. The clinical applications of these findings may be available in the near future, and there is a need for further detailed study on language metrics designed for ASD adults.
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Affiliation(s)
- E Aramaki
- Eiji Aramaki, Kyoto University Design School, Kyoto, Japan, E-mail:
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Shimazu T, Asada K, Charvat H, Kusano C, Otake Y, Kakugawa Y, Watanabe H, Gotoda T, Ushijima T, Tsugane S. Association of gastric cancer risk factors with DNA methylation levels in gastric mucosa of healthy Japanese: a cross-sectional study. Carcinogenesis 2015; 36:1291-8. [PMID: 26354778 DOI: 10.1093/carcin/bgv125] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2015] [Accepted: 08/09/2015] [Indexed: 12/12/2022] Open
Abstract
Helicobacter pylori infection induces aberrant DNA methylation, and methylation levels of several specific marker genes in gastric mucosa are associated with gastric cancer risk. However, it is unclear whether gastric cancer risk factors are associated with methylation levels of marker genes in healthy individuals. We conducted a cross-sectional study of 281 Japanese cancer screenees aged 40-69 years with no history of H.pylori eradication therapy who responded to a validated food frequency questionnaire. DNA methylation levels of marker genes (miR-124a-3, EMX1 and NKX6-1) in gastric mucosa were quantified by real-time methylation-specific polymerase chain reaction. A multivariate beta regression model was used to investigate the association of pack-years of smoking and intakes of green/yellow vegetables, fruit and salt with methylation levels of marker genes. All analyses were stratified by H.pylori status. We found 2.5 to 34.1 times higher mean methylation levels among those with current H.pylori infection (n = 117) compared to those without (n = 164). After adjustment for potential confounders, we found increased levels of miR-124a-3 methylation according to pack-years of smoking and decreased levels of methylation according to green/yellow vegetable intake. We did not detect these associations among those without H.pylori infection. In conclusion, smoking habits and green/yellow vegetable intake were associated with DNA methylation levels in gastric mucosae of healthy individuals with current H.pylori infection. Our study suggests that these risk factors may modify the effect of H.pylori on methylation induction and maintenance in gastric mucosa.
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Affiliation(s)
- Taichi Shimazu
- Epidemiology and Prevention Group, Research Center for Cancer Prevention and Screening, National Cancer Center, Tokyo 104-0045, Japan,
| | - Kiyoshi Asada
- Division of Epigenomics, National Cancer Center Research Institute, Tokyo 104-0045, Japan
| | - Hadrien Charvat
- Epidemiology and Prevention Group, Research Center for Cancer Prevention and Screening, National Cancer Center, Tokyo 104-0045, Japan
| | - Chika Kusano
- Division of Screening Practice, Research Center for Cancer Prevention and Screening, National Cancer Center, Tokyo 104-0045, Japan, Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo 160-0023, Japan
| | - Yosuke Otake
- Division of Screening Practice, Research Center for Cancer Prevention and Screening, National Cancer Center, Tokyo 104-0045, Japan, Endoscopy Division, National Cancer Center Hospital, Tokyo 104-0045, Japan and
| | - Yasuo Kakugawa
- Division of Screening Practice, Research Center for Cancer Prevention and Screening, National Cancer Center, Tokyo 104-0045, Japan, Endoscopy Division, National Cancer Center Hospital, Tokyo 104-0045, Japan and
| | | | - Takuji Gotoda
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo 160-0023, Japan, Niigata University, Niigata 951-8510, Japan
| | - Toshikazu Ushijima
- Division of Epigenomics, National Cancer Center Research Institute, Tokyo 104-0045, Japan
| | - Shoichiro Tsugane
- Epidemiology and Prevention Group, Research Center for Cancer Prevention and Screening, National Cancer Center, Tokyo 104-0045, Japan
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Maeda M, Asada K, Nakajima T, Shimazu T, Yamamichi N, Maekita T, Yokoi C, Oda I, Ando T, Yoshida T, Nanjo S, Fujishiro M, Gotoda T, Ichinose M, Ushijima T. Abstract LB-157: Demonstration of the usefulness of an epigenetic cancer risk marker by a multicenter prospective cohort study. Cancer Res 2015. [DOI: 10.1158/1538-7445.am2015-lb-157] [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: 11/16/2022]
Abstract
Abstract
An epigenetic cancer risk marker is a promising cancer risk marker that can reflect past exposure to various environmental factors, such as chronic inflammation, unlike single nucleotide polymorphism cancer risk markers. Cross-sectional studies have shown that the degree of accumulation of aberrant DNA methylation in normal-appearing tissues was associated with risk of some types of cancer, especially gastric cancer [Ushijima et al., Clin Cancer Res,2,143,2012]. In this study, we aimed to demonstrate that cancer risk can be predicted by an epigenetic cancer risk marker. For this purpose, we decided to predict the risk of metachronous gastric cancer after endoscopic resection because we could expect a sufficient number of events in three years.
826 patients with early gastric cancer, aged 40-80 years, who had undergone endoscopic resection were enrolled. If the patients were infected with Helicobacter. pylori (H. pylori), a potent inducer of aberrant DNA methylation, eradication was performed. For all enrolled patients, methylation levels of three preselected genes, miR-124a-3, EMX1 and NKX6-1, were measured by quantitative methylation-specific PCR. Patients were followed up annually by endoscopy to detect a metachronous gastric cancer. Authentic metachronous gastric cancers were defined as cancers excluding those detected within 1 year after the enrollment.
782 of 826 patients had at least one follow-up, with a median follow-up of 2.97 years. Authentic metachronous gastric cancers developed in 66 patients: 29, 16 and 21 patients at 1-2, 2-3 and ≥3 years after the enrollment, respectively. The highest quartile of the miR-124a-3 methylation level had a significantly high HR in univariate analysis (95% CI) [2.17 (1.07 to 4.41); p = 0.032] and adjusted HR in multivariate analysis [2.30 (1.03 to 5.10); p = 0.042] of developing authentic metachronous gastric cancers. Similar trends were observed for EMX1 and NKX6-1.
This study, for the first time, demonstrated the usefulness of an epigenetic cancer risk marker by a multicenter prospective cohort study [Asada et al., Gut,1,171,2014]. It is speculated that DNA methylation is accumulated both in stem and differentiated cells of gastric mucosa, and that methylation in stem cells can permanently persist, even after H. pylori infection discontinues, and that DNA methylation accumulated in stem cells is correlated with cancer risk [Ushijima et al., J Gastroenterol,3,161,2006].
Citation Format: Masahiro Maeda, Kiyoshi Asada, Takeshi Nakajima, Taichi Shimazu, Nobutake Yamamichi, Takao Maekita, Chizu Yokoi, Ichiro Oda, Takayuki Ando, Takeichi Yoshida, Sohachi Nanjo, Mitsuhiro Fujishiro, Takuji Gotoda, Masao Ichinose, Toshikazu Ushijima. Demonstration of the usefulness of an epigenetic cancer risk marker by a multicenter prospective cohort study. [abstract]. In: Proceedings of the 106th Annual Meeting of the American Association for Cancer Research; 2015 Apr 18-22; Philadelphia, PA. Philadelphia (PA): AACR; Cancer Res 2015;75(15 Suppl):Abstract nr LB-157. doi:10.1158/1538-7445.AM2015-LB-157
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Affiliation(s)
- Masahiro Maeda
- 1National Cancer Center Research Institute, Tokyo, Japan
| | - Kiyoshi Asada
- 1National Cancer Center Research Institute, Tokyo, Japan
| | | | - Taichi Shimazu
- 3Research Center for Cancer Prevention and Screening, National Cancer Center, Tokyo, Japan
| | | | | | - Chizu Yokoi
- 6National Center for Global Health and Medicine, Tokyo, Japan
| | - Ichiro Oda
- 2National Cancer Center Hospital, Tokyo, Japan
| | - Takayuki Ando
- 1National Cancer Center Research Institute, Tokyo, Japan
| | | | - Sohachi Nanjo
- 1National Cancer Center Research Institute, Tokyo, Japan
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Asada K, Nakajima T, Shimazu T, Yamamichi N, Maekita T, Yokoi C, Oda I, Ando T, Yoshida T, Nanjo S, Fujishiro M, Gotoda T, Ichinose M, Ushijima T. Demonstration of the usefulness of epigenetic cancer risk prediction by a multicentre prospective cohort study. Gut 2015; 64:388-96. [PMID: 25379950 PMCID: PMC4345890 DOI: 10.1136/gutjnl-2014-307094] [Citation(s) in RCA: 100] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND Epigenetic alterations accumulate in normal-appearing tissues of patients with cancer, producing an epigenetic field defect. Cross-sectional studies show that the degree of the defect may be associated with risk in some types of cancer, especially cancers associated with chronic inflammation. OBJECTIVE To demonstrate, by a multicentre prospective cohort study, that the risk of metachronous gastric cancer after endoscopic resection (ER) can be predicted by assessment of the epigenetic field defect using methylation levels. DESIGN Patients with early gastric cancer, aged 40-80 years, who planned to have, or had undergone, ER, were enrolled at least 6 months after Helicobacter pylori infection discontinued. Methylation levels of three preselected genes (miR-124a-3, EMX1 and NKX6-1) were measured by quantitative methylation-specific PCR. Patients were followed up annually by endoscopy, and the primary endpoint was defined as detection of a metachronous gastric cancer. Authentic metachronous gastric cancers were defined as cancers excluding those detected within 1 year after the enrolment. RESULTS Among 826 patients enrolled, 782 patients had at least one follow-up, with a median follow-up of 2.97 years. Authentic metachronous gastric cancers developed in 66 patients: 29, 16 and 21 patients at 1-2, 2-3 and ≥3 years after the enrolment, respectively. The highest quartile of the miR-124a-3 methylation level had a significant univariate HR (95% CI) (2.17 (1.07 to 4.41); p=0.032) and a multivariate-adjusted HR (2.30 (1.03 to 5.10); p=0.042) of developing authentic metachronous gastric cancers. Similar trends were seen for EMX1 and NKX6-1. CONCLUSIONS Assessment of the degree of an epigenetic field defect is a promising cancer risk marker that takes account of life history.
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Affiliation(s)
- Kiyoshi Asada
- Division of Epigenomics, National Cancer Center Research Institute, Tokyo, Japan
| | - Takeshi Nakajima
- Endoscopy Division, National Cancer Center Hospital, Tokyo, Japan
| | - Taichi Shimazu
- Epidemiology and Prevention Division, Research Center for Cancer Prevention and Screening, National Cancer Center, Tokyo, Japan
| | | | - Takao Maekita
- Second Department of Internal Medicine, Wakayama Medical University, Wakayama, Japan
| | - Chizu Yokoi
- Endoscopy Division, National Cancer Center Hospital, Tokyo, Japan,Department of Gastroenterology and Hepatology, National Center for Global Health and Medicine, Tokyo, Japan
| | - Ichiro Oda
- Endoscopy Division, National Cancer Center Hospital, Tokyo, Japan
| | - Takayuki Ando
- Division of Epigenomics, National Cancer Center Research Institute, Tokyo, Japan
| | - Takeichi Yoshida
- Second Department of Internal Medicine, Wakayama Medical University, Wakayama, Japan
| | - Sohachi Nanjo
- Division of Epigenomics, National Cancer Center Research Institute, Tokyo, Japan
| | | | - Takuji Gotoda
- Endoscopy Division, National Cancer Center Hospital, Tokyo, Japan,Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Masao Ichinose
- Second Department of Internal Medicine, Wakayama Medical University, Wakayama, Japan
| | - Toshikazu Ushijima
- Division of Epigenomics, National Cancer Center Research Institute, Tokyo, Japan
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Yamada M, Fukagawa T, Nakajima T, Asada K, Sekine S, Yamashita S, Okochi-Takada E, Taniguchi H, Kushima R, Oda I, Saito Y, Ushijima T, Katai H. Hereditary diffuse gastric cancer in a Japanese family with a large deletion involving CDH1. Gastric Cancer 2014; 17:750-6. [PMID: 24037103 DOI: 10.1007/s10120-013-0298-y] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [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: 05/15/2013] [Accepted: 08/14/2013] [Indexed: 02/07/2023]
Abstract
Hereditary diffuse gastric cancer (HDGC), characterized by susceptibility to gastric signet ring cell carcinomas (SRCCs) and caused by CDH1 germline mutations, is rare in the Japanese. We present here a Japanese family with HDGC identified by comparative genomic hybridization (CGH) analysis. A 55-year-old woman was treated with completion gastrectomy for multiple SRCCs, and pathological examination revealed approximately 200 foci of SRCC with loss of E-cadherin expression. Her 30-year-old son had surveillance endoscopy and was found to have multiple SRCCs. He underwent total gastrectomy, and 32 foci of SRCC with loss of E-cadherin expression were histologically found. Although no point mutations were detected in CDH1 by sequencing, CGH revealed a 275-kb deletion involving exons 7-16 of CDH1 in both patients. While only a few HDGCs have been reported in East Asia, patients with multiple SRCC may need to be offered appropriate genetic counseling and testing in this area.
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Affiliation(s)
- Masayoshi Yamada
- Endoscopy Division, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
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Nakamura M, Algaba JC, Asada K, Chen B, Chen MT, Han J, Ho PHP, Hsieh SN, Huang T, Inoue M, Koch P, Kuo CY, Martin-Cocher P, Matsushita S, Meyer-Zhao Z, Nishioka H, Nystrom G, Pradel N, Pu HY, Raffin P, Shen HY, Tseng CY. Greenland Telescope (GLT) Project. EPJ Web of Conferences 2013. [DOI: 10.1051/epjconf/20136101008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Shirai T, Mori K, Mikamo M, Shishido Y, Akita T, Morita S, Asada K, Fujii M, Suda T, Chida K. Respiratory mechanics and peripheral airway inflammation and dysfunction in asthma. Clin Exp Allergy 2013; 43:521-6. [PMID: 23600542 DOI: 10.1111/cea.12083] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2012] [Revised: 12/20/2012] [Accepted: 01/03/2013] [Indexed: 11/28/2022]
Abstract
BACKGROUND Clinical application of the forced oscillation technique (FOT) has progressed with the spread of commercially available FOT devices. The correlation between respiratory impedance and spirometry has been reported; however, the association with airway inflammation and pulmonary function, in the lung periphery in particular, is unclear. OBJECTIVE To assess whether respiratory impedance is associated with peripheral airway inflammation and dysfunction in asthma. METHODS Subjects included 78 patients with overall controlled asthma. We measured whole-breath or within-breath respiratory system resistance (Rrs) and reactance (Xrs) using a commercially available multi-frequency FOT device (MostGraph-01), and assessed the correlation with the fraction of exhaled nitric oxide (FeNO), alveolar nitric oxide concentration (CANO), maximal NO flux in the conductive airways (J'awNO), and the N2 phase III slope of single breath N2 washout (delta N2 ). RESULTS The differences between inspiratory and expiratory phases of Xrs at 5 Hz (X5), resonant frequency (Fres), and a low-frequency reactance area (ALX) were significantly correlated with CANO; however, there was no correlation between respiratory impedance and FeNO or J'awNO. The delta N2 values were significantly correlated with whole-breath, inspiratory, and expiratory Rrs and Xrs, except for R20. CONCLUSIONS AND CLINICAL RELEVANCE We conclude that respiratory impedance reflects peripheral airway inflammation and ventilation inhomogeneity.
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Affiliation(s)
- T Shirai
- Department of Respiratory Medicine, Shizuoka General Hospital, Shizuoka, Japan.
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Asada K, Abe M, Ushijima T. Clinical application of the CpG island methylator phenotype to prognostic diagnosis in neuroblastomas. J Hum Genet 2013; 58:428-33. [DOI: 10.1038/jhg.2013.64] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2013] [Revised: 05/06/2013] [Accepted: 05/11/2013] [Indexed: 12/21/2022]
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Ito Y, Yamada Y, Asada K, Ushijima T, Iwasa S, Kato K, Hamaguchi T, Shimada Y. EGFR L2 domain mutation is not correlated with resistance to cetuximab in metastatic colorectal cancer patients. J Cancer Res Clin Oncol 2013; 139:1391-6. [PMID: 23722667 DOI: 10.1007/s00432-013-1454-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2013] [Accepted: 05/17/2013] [Indexed: 12/13/2022]
Abstract
BACKGROUND The KRAS mutation has been associated with resistance to cetuximab, an anti-epidermal growth factor receptor (EGFR) monoclonal antibody, in metastatic colorectal cancer (mCRC). However, the predictive biomarkers of cetuximab resistance in KRAS wild-type mCRC remain unknown except BRAF, NRAS, and PIK3CA exon 20. The objective of the study is to study the impact of EGFR L2 mutations on resistance to cetuximab in KRAS wild-type patients. PATIENTS AND METHODS A total of 247 mCRC patients were screened for KRAS status at the National Cancer Center Hospital between September 2008 and April 2010. We analyzed the EGFR L2 domain mutation status in KRAS wild type and in the patients treated with cetuximab-based therapy. RESULTS There were 136 patients with wild-type KRAS (55%). Sixty-five patients were analyzed for the L2 domain mutation status, and all patients received cetuximab-based therapy. One patient who had a mutation at exon 9 showed a partial response to cetuximab plus irinotecan. CONCLUSION Mutation of the EGFR L2 domain was analyzed in mCRC patients. Our findings do not provide sufficient evidence that EGFR L2 domain mutation is correlated with resistance to cetuximab.
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Affiliation(s)
- Yuriko Ito
- Department of Clinical Oncology, Yamagata University, 2-2-2 Iidanishi, Yamagata, Yamagata, Japan.
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Asada K, Watanabe N, Nakamura Y, Ohira M, Westermann F, Schwab M, Nakagawara A, Ushijima T. Stronger prognostic power of the CpG island methylator phenotype than methylation of individual genes in neuroblastomas. Jpn J Clin Oncol 2013; 43:641-5. [PMID: 23619990 DOI: 10.1093/jjco/hyt058] [Citation(s) in RCA: 11] [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: 11/14/2022] Open
Abstract
OBJECTIVE The CpG island methylator phenotype is strongly associated with poor survival in neuroblastomas. Neuroblastomas with the CpG island methylator phenotype include almost all neuroblastomas with MYCN amplification, and, even among neuroblastomas without MYCN amplification, have worse prognosis. At the same time, methylation of individual tumor-suppressor genes is also reported to be associated with poor survival. The purpose of this study was to compare the prognostic power of the CpG island methylator phenotype with that of methylation of individual genes. METHODS Methylation-specific polymerase chain reaction was performed for five individual genes (CASP8, EMP3, HOXA9, NR1I2 and CD44) in 140 Japanese and 152 German neuroblastomas. Kaplan-Meier analysis and log-rank tests were conducted to compare the survival between groups defined by methylation status. RESULTS Among the five individual genes, only CASP8 methylation had a significant association with poor overall survival both in Japanese (hazard ratio = 3.1; 95% confidence interval = 1.5-6.4; P = 0.002) and German (hazard ratio = 4.8; 95% confidence interval = 2.1-11; P = 0.0002) neuroblastomas. HOXA9 and NR1I2 methylation were associated with poor survival only in German neuroblastomas. On the other hand, the CpG island methylator phenotype had a strong and consistent association in Japanese (hazard ratio = 22; 95% confidence interval = 5.3-93; P = 1.5 × 10(-5)) and German (hazard ratio = 9.5; 95% confidence interval = 3.2-28; P = 4.7 × 10(-5)) neuroblastomas. CONCLUSION The CpG island methylator phenotype is likely to have stronger prognostic power than methylation of individual genes in neuroblastomas.
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Affiliation(s)
- Kiyoshi Asada
- Division of Epigenomics, National Cancer Center Research Institute, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan
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Nanjo S, Asada K, Yamashita S, Nakajima T, Nakazawa K, Maekita T, Ichinose M, Sugiyama T, Ushijima T. Identification of gastric cancer risk markers that are informative in individuals with past H. pylori infection. Gastric Cancer 2012; 15:382-8. [PMID: 22237657 DOI: 10.1007/s10120-011-0126-1] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [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: 08/25/2011] [Accepted: 11/26/2011] [Indexed: 02/07/2023]
Abstract
BACKGROUND Epigenomic damage induced by Helicobacter pylori infection is accumulated in gastric mucosae before the development of malignancy. In individuals without current H. pylori infection, DNA methylation levels of specific CpG islands (CGIs) are associated with gastric cancer risk. Because risk estimation in individuals with past infection is clinically important, we here aimed to identify the risk markers that reflect epigenomic damage induced by H. pylori infection, and that are informative in these individuals. METHODS Gastric mucosae were obtained from 55 gastric cancer patients (GC-Pt) (21 with current infection and 34 with past infection) and 55 healthy volunteers (HV) (7 never-infected, 21 with current infection, and 27 with past infection). Hypermethylated CGIs were searched for by methylated DNA immunoprecipitation-CGI microarray, and methylation levels were analyzed by quantitative methylation-specific polymerase chain reaction (PCR). RESULTS By microarray analysis of a pool of three samples from GC-Pt with past infection and another pool of samples from HV with past infection, 15 hypermethylated CGIs in the former pool were isolated. Seven of them had significantly higher methylation levels in GC-Pt with past infection (n = 10) than in HV with past infection (n = 10) (P < 0.001). In a validation cohort (21 GC-Pt with past infection and 14 HV with past infection), the seven new markers had large areas under the receiver-operating characteristic curves (0.78-0.84) and high odds ratios (12.7-36.0) compared with two currently available markers (0.60-0.65, 5.0-5.7). CONCLUSIONS We identified seven novel gastric cancer risk markers that are highly informative in individuals with past infection.
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Affiliation(s)
- Sohachi Nanjo
- Division of Epigenomics, National Cancer Center Research Institute, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan
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Asada K, Ando T, Ushijima T. Abstract 2169: FHL1 on chromosome X is a single-hit gastrointestinal tumor-suppressor gene and contributes to the formation of an epigenetic field defect. Cancer Res 2012. [DOI: 10.1158/1538-7445.am2012-2169] [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: 11/16/2022]
Abstract
Abstract
Tumor-suppressor genes on chromosome X can be inactivated by a single hit, any of point mutations, chromosomal loss, and aberrant DNA methylation. Among these mechanisms, aberrant DNA methylation can be present not only in tumor tissue but also in normal-appearing tissues. Levels of aberrant DNA methylation in non-cancerous tissues are known to correlate with cancer risk for gastric cancers and other cancers (epigenetic field defect). However, only a limited number of genes that functionally contribute to the field defect have been identified. To identify a tumor-suppressor gene on chromosome X that contributes to the formation of an epigenetic field defect, we here searched for genes on chromosome X whose expression was up-regulated by treatment of AGS gastric cancer cell line with a DNA demethylating agent, 5-aza-2′-deoxycytidine (5-aza-dC). Among the 495 genes up-regulated at 4-fold or more by treatment with 5-aza-dC, 69 genes were located on chromosome X. Among the 69 genes, 11 genes had low expression (signal intensity < 200) in non-treated AGS cells and high expression (signal intensity > 500) in a pool of gastric mucosae of three healthy volunteers. Among the 11 genes, FHL1 was frequently methylation-silenced in gastric and colon cancer cell lines, and in primary gastric (11/58) and colon (5/50) cancers. In HCT116 cells, knock-down of FHL1 accelerated cell growth (shRNA-1, 243 % of control cells at 120 hours, P < 0.001, and shRNA-2, 191%, P < 0.001) and sizes of xenografts in nude mice (shRNA-1, 2.7-fold larger tumors than that of control cells, P < 0.001). Also in HSC39 cells, knock-down of FHL1 significantly increased cell growth. Expression of exogenous FHL1 in a non-expressing AGS cell line significantly reduced its growth (72.2% of control cells, P < 0.05). A somatic mutation (G642T; Lys214Asn) was identified in one of 144 colon cancer specimens, and the mutant FHL1 was shown to lack a growth-suppressive effect. Among the healthy volunteers, FHL1 methylation was elevated only in H. pylori-positive individuals (0/16 vs. 10/16, P < 0.001). Since potent methylation induction by H. pylori can mask a difference in H. pylori-positive individuals, FHL1 methylation levels were compared between healthy volunteers and gastric cancer patients among the H. pylori-negative individuals, and FHL1 methylation levels were shown to be elevated only in gastric cancer patients (0/16 vs. 5/26, P = 0.06). These data showed that FHL1 is a methylation-silenced tumor-suppressor gene on chromosome X in gastrointestinal cancers, and that its silencing contributes to the formation of an epigenetic field for cancerization.
Citation Format: {Authors}. {Abstract title} [abstract]. In: Proceedings of the 103rd Annual Meeting of the American Association for Cancer Research; 2012 Mar 31-Apr 4; Chicago, IL. Philadelphia (PA): AACR; Cancer Res 2012;72(8 Suppl):Abstract nr 2169. doi:1538-7445.AM2012-2169
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Affiliation(s)
- Kiyoshi Asada
- 1National Cancer Center Research Institute, Tokyo, Japan
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Maki H, Hatano M, Yao A, Imamura T, Asada K, Inaba T, Shiga T, Kinugawa K, Nagai R. 615 Efficacy of Imatinib Mesylate on Scleroderma Associated Pulmonary Arterial Hypertension. J Heart Lung Transplant 2012. [DOI: 10.1016/j.healun.2012.01.629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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Ito Y, Yamada Y, Asada K, Ushijima T, Iwasa S, Kato K, Hamaguchi T, Shimada Y. Relationship between methylation status of PTEN and point mutation of the EGFR L2 domain and efficacy of cetuximab in metastatic colorectal cancer. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.4_suppl.458] [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
458 Background: The KRAS mutation has been associated with resistance to cetuximab, an anti-epidermal growth factor receptor (EGFR) monoclonal antibody, in metastatic colorectal cancer (mCRC). However, the predictive biomarkers of cetuximab resistance in KRAS wild-type mCRC remain unknown. We explored the possible roles of PTEN methylation and mutation of the EGFR L2 domain, which is the site of binding to cetuximab, in cetuximab resistance in KRAS wild-type mCRC. Methods: The subjects were 247 mCRC patients screened for KRAS status at the National Cancer Center Hospital between September 2008 and April 2010. Genomic DNA was extracted from formalin- fixed paraffin-embedded colorectal cancer tissue samples. Mutation analysis of KRAS and the EGFR L2 domain was performed by direct sequencing. Methylation analysis of PTEN was performed by quantitative real-time methylation-specific PCR with a set of primers specific to the methylated and unmethylated sequences, using sodium bisulfate-modified DNA. Results: Of the 247 mCRC patients, 136 patients had wild-type KRAS (55%). In 9 of these patients, the quality of the DNA was sufficient for analysis of PTEN methylation levels. Eight of the 9 patients received a cetuximab-based regimen (with irinotecan: 4, monotherapy: 4). The best response was PR in 4 patients (25%), SD in 2 (12.5%), and PD in 2 (12.5%). The best response of the one patient with methylated PTEN treated with cetuximab and irinotecan was SD. Mutation analysis of the EGFR L2 domain was performed in 65 of the 136 patients with wild-type KRAS. All of them received a cetuximab-based regimen (with irinotecan: 50, monotherapy: 15). The best response was PR in 13 patients (20%), SD in 26 (40%), PD in 20 (31%). The one patient who had a mutation at exon 9 showed a partial response to cetuximab and irinotecan. Conclusions: Methylation of PTEN and mutation of the EGFR L2 domain were analyzed in Japanese mCRC patients. Our findings do not provide sufficient evidence that EGFR L2 domain mutation and methylation of PTEN are correlated with resistance to cetuximab. No significant financial relationships to disclose.
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Affiliation(s)
- Y. Ito
- Yamagata University, Yamagata, Japan; National Cancer Center Hospital, Tokyo, Japan; National Cancer Center Research Institute, Tokyo, Japan
| | - Y. Yamada
- Yamagata University, Yamagata, Japan; National Cancer Center Hospital, Tokyo, Japan; National Cancer Center Research Institute, Tokyo, Japan
| | - K. Asada
- Yamagata University, Yamagata, Japan; National Cancer Center Hospital, Tokyo, Japan; National Cancer Center Research Institute, Tokyo, Japan
| | - T. Ushijima
- Yamagata University, Yamagata, Japan; National Cancer Center Hospital, Tokyo, Japan; National Cancer Center Research Institute, Tokyo, Japan
| | - S. Iwasa
- Yamagata University, Yamagata, Japan; National Cancer Center Hospital, Tokyo, Japan; National Cancer Center Research Institute, Tokyo, Japan
| | - K. Kato
- Yamagata University, Yamagata, Japan; National Cancer Center Hospital, Tokyo, Japan; National Cancer Center Research Institute, Tokyo, Japan
| | - T. Hamaguchi
- Yamagata University, Yamagata, Japan; National Cancer Center Hospital, Tokyo, Japan; National Cancer Center Research Institute, Tokyo, Japan
| | - Y. Shimada
- Yamagata University, Yamagata, Japan; National Cancer Center Hospital, Tokyo, Japan; National Cancer Center Research Institute, Tokyo, Japan
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Abstract
Aberrant DNA methylation is known as an important cause of human cancers, along with mutations. Although aberrant methylation was initially speculated to be similar to mutations, it is now recognized that methylation is quite unlike mutations. Whereas the number of mutations in individual cancer cells is estimated to be approximately 80, that of aberrant methylation of promoter CpG islands reaches several hundred to 1000. Although mutations of a specific gene are very few in non-cancerous (thus polyclonal) tissues (usually at 1 x 10(-5)/cell), aberrant methylation of a specific gene can be present up to several 10% of cells. Mutagenic chemicals and radiation are well-known inducers of mutations, whereas chronic inflammation is deeply involved in methylation induction. Although mutations are induced in mostly random genes, methylation is induced in specific genes depending on tissues and inducers. Methylation is potentially reversible, unlike mutations. These characteristics of methylation are opening up new fields of application and research.
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Affiliation(s)
- Toshikazu Ushijima
- Carcinogenesis Division, National Cancer Center Research Institute, Chuo-ku, Tokyo, Japan.
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43
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Ushijima T, Katsurano M, Asada K. [Epigenome and human disease]. Nihon Rinsho 2009; 67:1219-1226. [PMID: 19507518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Epigenetic modifications, DNA methylation and histone modifications, mark genes to be used and not to be used, and are stably inherited in somatic cells. Epigenome is their genome-wide compilation, and undergoes dynamic changes in development, differentiation, and reprogramming. Epigenomic changes are causally involved in cancer development and progression by inducing silencing of tumor-suppressor genes and genomic instability. Aberrant DNA methylation can accumulate in a large fraction of cells even in tissues without clonal lesions, which indicates that epigenomic changes can potentially affect functions of a tissue. Multiple reports show that epigenomic changes are present in acquired neurological, metabolic, and immunological disorders, and more research in the field is urgently necessary.
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44
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Ando T, Yoshida T, Enomoto S, Asada K, Tatematsu M, Ichinose M, Sugiyama T, Ushijima T. DNA methylation of microRNA genes in gastric mucosae of gastric cancer patients: its possible involvement in the formation of epigenetic field defect. Int J Cancer 2009; 124:2367-74. [PMID: 19165869 DOI: 10.1002/ijc.24219] [Citation(s) in RCA: 215] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Accumulation of aberrant DNA methylation in normal-appearing gastric mucosae, mostly induced by H. pylori infection, is now known to be deeply involved in predisposition to gastric cancers (epigenetic field defect), and silencing of protein-coding genes has been analyzed so far. In this study, we aimed to clarify the involvement of microRNA (miRNA) gene silencing in the field defect. First, we selected three miRNA genes as methylation-silenced after analysis of six candidate "methylation-silenced" tumor-suppressor miRNA genes. Methylation levels of the three genes (miR-124a-1, miR-124a-2 and miR-124a-3) were quantified in 56 normal gastric mucosae of healthy volunteers (28 volunteers with H. pylori and 28 without), 45 noncancerous gastric mucosae of gastric cancer patients (29 patients with H. pylori and 16 without), and 28 gastric cancer tissues (13 intestinal and 15 diffuse types). Among the healthy volunteers, individuals with H. pylori had 7.8-13.1-fold higher methylation levels than those without (p < 0.001). Among individuals without H. pylori, noncancerous gastric mucosae of gastric cancer patients had 7.2-15.5-fold higher methylation levels than gastric mucosae of healthy volunteers (p < 0.005). Different from protein-coding genes, individuals with past H. pylori infection retained similar methylation levels to those with current infection. In cancer tissues, methylation levels were highly variable, and no difference was observed between intestinal and diffuse histological types. This strongly indicated that methylation-silencing of miRNA genes, in addition to that of protein-coding genes, contributed to the formation of a field defect for gastric cancers.
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Affiliation(s)
- Takayuki Ando
- Carcinogenesis Division, National Cancer Center Research Institute, Chuo-ku, Tokyo, Japan
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45
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Terada K, Okochi-Takada E, Akashi-Tanaka S, Miyamoto K, Taniyama K, Tsuda H, Asada K, Kaminishi M, Ushijima T. Association between frequent CpG island methylation and HER2 amplification in human breast cancers. Carcinogenesis 2009; 30:466-71. [PMID: 19168584 DOI: 10.1093/carcin/bgp021] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The presence of frequent methylation of CpG islands (CGIs), designated as the CpG island methylator phenotype in some cancers, is associated with distinct clinicopathological characteristics, including gene amplification, in individual tumor types. Amplification of HER2 in human breast cancers is an important prognostic and therapeutic target, but an association between HER2 amplification and frequent CGI methylation is unknown. To clarify the association, we here quantified methylation levels of promoter CGIs of 11 genes, which are unlikely to confer growth advantage to cells, in 63 human breast cancers. The number of methylated genes in a cancer did not obey a bimodal distribution, and the 63 cancers were classified into those with frequent methylation (n = 16), moderate methylation (n = 26) and no methylation (n = 21). The incidence of HER2 amplification was significantly higher in the cancers with frequent methylation (11 of 16) than in those with no methylation (2 of 21, P = 0.001). Also, the number of methylated genes correlated with the degree of HER2 amplification (r = 0.411, P = 0.002). Correlation analysis with clinicopathological characteristics and methylation of CDKN2A, BRCA1 and CDH1 revealed that frequent methylation had significant correlation with higher nuclear grades (P = 0.001). These showed that frequent methylation had a strong association with HER2 amplification in breast cancers and suggested that frequent methylation can be a determinant of various characteristics in a fraction of human breast cancers.
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Affiliation(s)
- Kotoe Terada
- Carcinogenesis Division, National Cancer Center Research Institute, Tokyo, Japan
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46
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Asada K, Yoshiji H, Noguchi R, Ikenaka Y, Kitade M, Kaji K, Yoshii J, Yanase K, Namisaki T, Yamazaki M, Tsujimoto T, Akahane T, Uemura M, Fukui H. Crosstalk between high-molecular-weight adiponectin and T-cadherin during liver fibrosis development in rats. Int J Mol Med 2007; 20:725-9. [PMID: 17912467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/17/2023] Open
Abstract
Adiponectin, a circulating adipocyte-derived secretory protein, reportedly plays an important role in liver fibrosis development, although the biological role of adiponectin in liver fibrogenesis is still controversial. Adiponectin is present in the serum as three oligometric complexes; namely, high-, middle-, and low-molecular weight (HMW, MMW, and LMW, respectively). Adiponectin exerts different biological activities in an oligomerization-dependent manner. The aim of our current study was to examine the alteration of each isoform of adiponectin and its receptors (AdipoR1, AdipoR2, and T-cadherin) during the choline-deficient L-amino acid-defined (CDAA) diet-induced rat liver fibrosis development. We also elucidated the methylation status of all receptors. The serum level of total adiponectin significantly increased during the liver fibrosis development. Among the three isoforms, only HMW adiponectin was significantly up-regulated whereas MMW and LMW were not. The expression of T-cadherin, which exclusively binds with HMW adiponectin, was significantly augmented as well. The AdipoR2 expression was markedly decreased and showed no marked difference from that of AdipoR1. No obvious methylation change was observed in all three receptors, suggesting that another mechanism is involved in the alteration of receptor gene expression. Collectively, since the specific ligand and receptor were augmented together, crosstalk between HMW adiponectin and T-cadherin may play an important role during liver fibrosis development in rats.
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Affiliation(s)
- Kiyoshi Asada
- Third Department of Internal Medicine, Nara Medical University, Nara, Japan
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47
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Fukui H, Uemura M, Akahane T, Tsujimoto T, Yanase K, Namisaki T, Yamazaki M, Yoshii J, Kaji K, Kitade M, Ikenaka Y, Noguchi R, Asada K, Yoshiji H. Crosstalk between high-molecular-weight adiponectin and T-cadherin during liver fibrosis development in rats. Int J Mol Med 2007. [DOI: 10.3892/ijmm.20.5.725] [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: 11/06/2022] Open
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48
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Asada K, Tasaka A, Kiyohashi K, Hirashita K, Yamamoto H, Ishibashi K. Assessment of inferior alveolar nerve damage in neurosensory disturbance. Int J Oral Maxillofac Surg 2007. [DOI: 10.1016/j.ijom.2007.09.091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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49
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Yanase K, Yoshiji H, Ikenaka Y, Noguchi R, Kitade M, Kaji K, Yoshii J, Namisaki T, Yamazaki M, Asada K, Tsujimoto T, Akahane T, Uemura M, Fukui H. Synergistic inhibition of hepatocellular carcinoma growth and hepatocarcinogenesis by combination of 5-fluorouracil and angiotensin-converting enzyme inhibitor via anti-angiogenic activities. Oncol Rep 2007. [DOI: 10.3892/or.17.2.441] [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: 11/06/2022] Open
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50
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Yanase K, Yoshiji H, Ikenaka Y, Noguchi R, Kitade M, Kaji K, Yoshii J, Namisaki T, Yamazaki M, Asada K, Tsujimoto T, Akahane T, Uemura M, Fukui H. Synergistic inhibition of hepatocellular carcinoma growth and hepatocarcinogenesis by combination of 5-fluorouracil and angiotensin-converting enzyme inhibitor via anti-angiogenic activities. Oncol Rep 2007; 17:441-6. [PMID: 17203185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2023] Open
Abstract
Therapies aimed at destruction of the tumor vasculature are now recognized as a promising approach against cancer, and it has been reported that the combination treatment with an angiogenic inhibitor and conventional chemotherapeutic drug exerted synergistic anti-cancerous effects. We previously reported that the clinically used angiotensin-converting enzyme inhibitor (ACE-I) exerted potent-anti-angiogenic activities. The aim of our current study was to examine the combined effect of ACE-I and 5-fluorouracil (5-FU), which is widely used for hepatogastrointestinal tumors, on hepatocellular carcinoma (HCC) growth and hepatocarcinogenesis. When used individually at low doses, neither 5-FU nor ACE-I exerted significant inhibitory effects on the HCC growth. However, the combination treatment of 5-FU and ACE-I showed a potent inhibitory effect on HCC growth along with suppression of neovascularization in the tumor. The expression level of the vascular endothelial growth factor, a potent angiogenic factor, was also suppressed, almost in conjunction with tumor growth inhibition. Furthermore, 5-FU and ACE-I treatment resulted in a marked increase of apoptosis in the tumor. In the hepatocarcinogenesis model, the combination treatment with 5-FU and ACE-I also showed a marked inhibitory effect on the development of preneoplastic lesions. The in vitro study demonstrated that this combination treatment inhibited endothelial cell tubular formation. Collectively, the combination treatment of 5-FU and ACE-I exerted a marked synergistic inhibitory effect on HCC growth via suppression of angiogenesis. This regimen also showed a chemopreventive effect against hepatocarcinogenesis. Since both 5-FU and ACE-I are widely used in clinical practice, this combination therapy may be an effective new therapeutic strategy against HCC in the future.
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Affiliation(s)
- Koji Yanase
- Third Department of Internal Medicine, Nara Medical University, Nara 634-8522, Japan
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