• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Analysis of quasispecies of HBV / HCV genes in a single individual by a new sequencing technique

Research Project

Project/Area Number 15K08995
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Gastroenterology
Research InstitutionUniversity of Yamanashi

Principal Investigator

SAKAMOTO Minoru  山梨大学, 大学院総合研究部, 准教授 (60324191)

Co-Investigator(Kenkyū-buntansha) 榎本 信幸  山梨大学, 大学院総合研究部, 教授 (20251530)
Project Period (FY) 2015-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
KeywordsHBV / HCV / quasispecies / deep sequencing / B型肝炎ウイルス / C型肝炎ウイルス / 薬剤耐性遺伝子 / Pre S2遺伝子 / DAA / 核酸アナログ治療 / B型肝炎 / C型肝炎 / 薬剤耐性変異
Outline of Final Research Achievements

The quasispecies state of HBV, HCV genome was analyzed by new sequencing technology.
In HCV, the drug resistance mutation against DAA is minor clone so called drug resistant associated variants: RAV becomes dominant after treatment. In HBV, quasispecies state in which deletion mutant of HBV-PreS2 region and Pre S1 / S2 initiation codon mutation are existed. It is formed by persistent infection with or without antiviral treatment and existent ratio 1% or more is associated with the disease state. Further In HCC cases, an increase in the existent ratio of mutated clone in PreS2 region is closely related to liver carcinogenesis.

Report

(4 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (29 results)

All 2017 2016 2015

All Journal Article (10 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 6 results,  Open Access: 4 results) Presentation (16 results) Book (3 results)

  • [Journal Article] Association Between Alanine Aminotransferase Elevation And UGT1A1*6 Polymorphisms In Daclatasvir And Asunaprevir Combination Therapy For Chronic Hepatitis C.2017

    • Author(s)
      Maekawa S, Sato M, Kuratomi N, Inoue T, Suzuki Y, Tatsumi A, Miura M, Matsuda S, Muraoka M, Nakakuki N, Amemiya F, Takano S, Fukasawa M, Nakayama Y, Yamaguchi T, Sato T, Sakamoto M, Murakawa M, Nakagawa M, Asahina Y, Enomoto N.
    • Journal Title

      J Gastroenterol

      Volume: 印刷中 Issue: 6 Pages: 780-786

    • DOI

      10.1007/s00535-017-1405-3

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Elevation of the Hepatitis B Virus DNA during the Treatment of Polycythemia Vera with the JAK Kinase Inhibitor Ruxolitinib2016

    • Author(s)
      Kirito K, Sakamoto M, Enomoto N
    • Journal Title

      Internal Medicine

      Volume: 55 Issue: 10 Pages: 1341-1344

    • DOI

      10.2169/internalmedicine.55.5529

    • NAID

      130005151187

    • ISSN
      0918-2918, 1349-7235
    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Comprehensive analyses of mutations and hepatitis B virus integration in hepatocellular carcinoma with clinicopathological features.2016

    • Author(s)
      Kawai-Kitahata F, Asahina Y, Tanaka S, Kakinuma S, Murakawa M, Sayuri Nitta S, Watanabe T, Otani S, Taniguchi M, Goto F, Nagata H, Kaneko S, Tasaka-Fujita M, Nishimura-Sakurai Y, Azuma S, Itsui Y, Nakagawa M, Tanabe M, Takano S, Fukasawa M, Sakamoto M, Maekawa S, Enomoto N, Watanabe M.
    • Journal Title

      Journal of Gastroenterology

      Volume: 51 Issue: 5 Pages: 473-486

    • DOI

      10.1007/s00535-015-1126-4

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] Induction of IFN-lambda3 as an additional effect of nucleotide, not nucleoside, analogues: a new potential target for HBV infection2016

    • Author(s)
      Murata, K. Asano, M. Matsumoto, A. Sugiyama, M. Nishida, N. Tanaka, E. Inoue, T. Sakamoto, M. Enomoto, N. Shirasaki, T. Honda, M. Kaneko, S. Gatanaga, H. Oka, S. Kawamura, Y. I. Dohi, T. Shuno, Y. Yano, H. Mizokami, M.
    • Journal Title

      Gut

      Volume: - Issue: 2 Pages: 362-371

    • DOI

      10.1136/gutjnl-2016-312653

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Deep sequencing and phylogenetic analysis of variants resistant to interferon-based protease inhibitor therapy in chronic hepatitis induced by genotype 1b hepatitis C virus.2015

    • Author(s)
      Sato M, Maekawa S, Komatsu N, Tatsumi A, Miura M, Muraoka M, Suzuki Y, Amemiya F, Takano S, Fukasawa M, Nakayama Y, Yamaguchi T, Uetake T, Inoue T, Sato T, Sakamoto M, Yamashita A, Moriishi K, Enomoto N.
    • Journal Title

      J Virol

      Volume: 89(11) Issue: 11 Pages: 6105-16

    • DOI

      10.1128/jvi.03127-14

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] C型肝炎治療における宿主因子とウイルス因子2015

    • Author(s)
      坂本穣、榎本信幸
    • Journal Title

      日本臨床

      Volume: 73 Pages: 208-212

    • Related Report
      2015 Research-status Report
  • [Journal Article] HCV:DAA時代におけるIFN治療の意義2015

    • Author(s)
      坂本穣、榎本信幸
    • Journal Title

      Medical Practice

      Volume: 32 Pages: 501-504

    • Related Report
      2015 Research-status Report
  • [Journal Article] 【C型肝炎】治療反応性、薬剤耐性変異と肝発癌リスクを考慮した治療法選択2015

    • Author(s)
      坂本穣、榎本信幸
    • Journal Title

      消化器の臨床

      Volume: 18 Pages: 80-85

    • Related Report
      2015 Research-status Report
  • [Journal Article] Direct Acting Antivirals(DAA)に対する薬剤耐性変異の問題と対策2015

    • Author(s)
      坂本穣、榎本信幸
    • Journal Title

      最新医学

      Volume: 70 Pages: 74-79

    • Related Report
      2015 Research-status Report
  • [Journal Article] 次世代シークエンサーによるHCVゲノム解析と薬剤耐性機構の解明2015

    • Author(s)
      坂本穣、佐藤光明、榎本信幸
    • Journal Title

      別冊BIO Clinica

      Volume: 4 Pages: 154-158

    • Related Report
      2015 Research-status Report
    • Peer Reviewed
  • [Presentation] 肝癌抑止を目指したC型肝炎治療の現状と課題2017

    • Author(s)
      坂本穣、佐藤光明、榎本信幸
    • Organizer
      第103回日本消化器病学会総会
    • Related Report
      2017 Annual Research Report
  • [Presentation] ウイルス因子、宿主因子、薬剤特性を考慮したSVR100%のC型肝炎治療2017

    • Author(s)
      坂本穣、前川伸哉、榎本信幸
    • Organizer
      第21回日本肝臓学会大会(JDDW)
    • Related Report
      2017 Annual Research Report
  • [Presentation] Deep sequenceと系統樹解析を用いたDAA耐性HCV由来の病態解析2017

    • Author(s)
      前川伸哉、坂本穣、榎本信幸
    • Organizer
      第21回日本肝臓学会大会(JDDW)
    • Related Report
      2017 Annual Research Report
  • [Presentation] DAAによる治療法選択と肝予備能の改善と肝発癌抑止の検討2016

    • Author(s)
      坂本穣、前川伸哉、榎本信幸
    • Organizer
      第41回日本肝臓学会東部会(パネルディスカッション)
    • Place of Presentation
      京王プラザホテル(東京都新宿区)
    • Year and Date
      2016-12-08
    • Related Report
      2016 Research-status Report
  • [Presentation] C型肝炎に対する治療法選択と肝予備能の改善2016

    • Author(s)
      本穣、松田秀哉、村岡優、鈴木雄一朗、佐藤光明、中山康弘、井上泰輔、前川伸哉、榎本信幸
    • Organizer
      第20回日本肝臓学会大会(JDDW2016)
    • Place of Presentation
      ポートアイランドホテル(兵庫県神戸市)
    • Year and Date
      2016-11-03
    • Related Report
      2016 Research-status Report
  • [Presentation] C型肝炎治療と肝予備能の改善2016

    • Author(s)
      坂本穣、前川伸哉、榎本信幸
    • Organizer
      第52回日本肝臓学会総会(シンポジウム)
    • Place of Presentation
      幕張メッセ(千葉県千葉市)
    • Year and Date
      2016-05-19
    • Related Report
      2016 Research-status Report
  • [Presentation] Deep sequenceによるPre S変異解析とHCC発癌の関連性2016

    • Author(s)
      鈴木雄一朗、坂本穣、榎本信幸
    • Organizer
      第52回日本肝臓学会総会
    • Place of Presentation
      幕張メッセ(千葉県千葉市)
    • Year and Date
      2016-05-19
    • Related Report
      2016 Research-status Report
  • [Presentation] ディープシークエンスによるDAA耐性変異の解析2016

    • Author(s)
      佐藤光明、前川信哉、松田秀哉、村岡優、鈴木雄一朗、辰巳明久、雨宮史武、中山康弘、井上泰輔、坂本穣、榎本信幸
    • Organizer
      第52回日本肝臓学会総会
    • Place of Presentation
      幕張メッセ(千葉県千葉市)
    • Year and Date
      2016-05-19
    • Related Report
      2016 Research-status Report
  • [Presentation] 治療反応性と薬剤耐性変異を考慮したC型肝炎治療2016

    • Author(s)
      坂本穣、前川伸哉、榎本信幸
    • Organizer
      第102回日本消化器病学会総会
    • Place of Presentation
      京王プラザホテル(東京都新宿区)
    • Year and Date
      2016-04-21
    • Related Report
      2016 Research-status Report
  • [Presentation] 治療反応性、薬剤耐性変異からみた1b型C型肝炎の治療選択2015

    • Author(s)
      坂本穣、鈴木雄一朗、佐藤光明、小松信俊、中山康弘、井上泰輔、前川伸哉、榎本信幸
    • Organizer
      第19回日本肝臓学会大会(JDDW2015)
    • Place of Presentation
      東京都・品川区
    • Year and Date
      2015-10-08
    • Related Report
      2015 Research-status Report
  • [Presentation] 宿主ウイルス因子、薬剤耐性変異を考慮したC型肝炎の治療法選択とウイルス排除による発癌抑制2015

    • Author(s)
      坂本穣、前川伸哉、榎本信幸
    • Organizer
      第51回日本肝臓学会総会
    • Place of Presentation
      熊本県・熊本市
    • Year and Date
      2015-05-21
    • Related Report
      2015 Research-status Report
  • [Presentation] DAA耐性変異の検出と臨床的意義の検討2015

    • Author(s)
      前川伸哉、坂本穣、榎本信幸
    • Organizer
      第51回日本肝臓学会総会
    • Place of Presentation
      熊本県・熊本市
    • Year and Date
      2015-05-21
    • Related Report
      2015 Research-status Report
  • [Presentation] 次世代シークエンサーによるシメプレビル耐性変異の解析2015

    • Author(s)
      佐藤光明、前川伸哉、村岡優、鈴木雄一朗、小松信俊、辰巳明久、雨宮史武、中山康弘、井上泰輔、坂本穣、榎本信幸
    • Organizer
      第51回日本肝臓学会総会
    • Place of Presentation
      熊本県・熊本市
    • Year and Date
      2015-05-21
    • Related Report
      2015 Research-status Report
  • [Presentation] 薬剤耐性変異を考慮したC型肝炎の治療法選択とウイルス排除による発癌抑制2015

    • Author(s)
      坂本穣、前川伸哉、榎本信幸
    • Organizer
      第101回日本消化器病学会総会
    • Place of Presentation
      宮城県・仙台市
    • Year and Date
      2015-04-23
    • Related Report
      2015 Research-status Report
  • [Presentation] 肝病態におけるC型肝炎ウイルスゲノムの多様性の意義について2015

    • Author(s)
      前川伸哉、坂本穣、榎本信幸
    • Organizer
      第101回日本消化器病学会総会
    • Place of Presentation
      宮城県・仙台市
    • Year and Date
      2015-04-23
    • Related Report
      2015 Research-status Report
  • [Presentation] Telaprevir耐性変異の発生とQuasispeciesの動態の解析2015

    • Author(s)
      佐藤光明、前川伸哉、鈴木雄一朗、小松信俊、辰巳明久、雨宮史武、中山康弘、井上泰輔、坂本穣、榎本信幸
    • Organizer
      第101回日本消化器病学会総会
    • Place of Presentation
      宮城県。仙台市
    • Year and Date
      2015-04-23
    • Related Report
      2015 Research-status Report
  • [Book] 肝疾患治療マニュアル-ガイドラインを理解し応用する(竹原徹郎、持田智編)2017

    • Author(s)
      坂本穣、榎本信幸
    • Total Pages
      318
    • Publisher
      南江堂
    • ISBN
      9784524254248
    • Related Report
      2017 Annual Research Report
  • [Book] C型肝炎治療のためのDAAの使い方2016

    • Author(s)
      坂本穣、榎本信幸
    • Total Pages
      9
    • Publisher
      文光堂
    • Related Report
      2016 Research-status Report
  • [Book] 新ウイルス性肝炎学2015

    • Author(s)
      坂本穣、榎本信幸
    • Total Pages
      6
    • Publisher
      日本臨床社
    • Related Report
      2015 Research-status Report

URL: 

Published: 2015-04-16   Modified: 2019-03-29  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi