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Molecular Dissection of hypoapoC-II caused by defective mRNA transcription

Research Project

Project/Area Number 24790914
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Metabolomics
Research InstitutionThe University of Tokyo

Principal Investigator

TAKASE Satoru  東京大学, 医学部附属病院, 助教 (80508094)

Project Period (FY) 2012-04-01 – 2014-03-31
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2013: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2012: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywordschylomicronemia / apoC-II deficiency / SNP / rare variant / アポリポ蛋白C-II / 高中性脂肪血症 / 全ゲノム解析 / アポリポ蛋白C-II / リポ蛋白リパーゼ
Research Abstract

Familial apolipoprotein C-II (apoC-II) deficiency is a rare autosomal recessive disorder with marked hypertriglyceridemia resulting from impaired activation of LPL. In most cases of apoC-II deficiency, causative mutations have been found in the protein-coding region of APOC2 gene; however, several atypical cases of apoC-II deficiency were reported to have markedly reduced, but detectable levels of plasma apoC-II protein (hereafter referred to as hypoapoC-II). A case of apoC-II deficiency was found that is phenotypically identical to hypoapoC-II. We took advantage of a monocyte/macrophage culture system to prove that transcription of apoC-II mRNA was decreased in the patient's cells. However, all of the fifty single nucleotide variants detected in the patient's APOC2 gene were common variants that are supposedly not causative, implying that other mutations regulate apoC-II levels. Whole-genome sequencing is underway to identify the causative mutation.

Report

(3 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • Research Products

    (8 results)

All 2013 Other

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 1 results) Presentation (6 results)

  • [Journal Article] Apolipoprotein C-II deficiency with no rare variant in the APOC2 gene2013

    • Author(s)
      Takase S, Osuga J, Fujita H, Hara K, Sekiya M, Igarashi M, Takanashi M, Takeuchi Y, Izumida Y, Ohta K, Kumagai M, Nishi M, Kubota M, Masuda Y, Taira Y, Okazaki S, Iizuka Y, Yahagi N, Ohashi K, Yoshida H, Yanai H, Tada N, Gotoda T, Ishibashi S, Kadowaki T, Okazaki H
    • Journal Title

      J Atheroscler Thromb

      Volume: 20 (5) Pages: 481-93

    • NAID

      130004444688

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Apolipoprotein C-II Deficiency with No Rare Variant in the <i>APOC2</i> Gene2013

    • Author(s)
      Takase S, Osuga J, Fujita H, Hara K, Sekiya M, Igarashi M, Takanashi M, Takeuchi Y, Izumida Y, Ohta K, Kumagai M, Nishi M, Kubota M, Masuda Y, Taira Y, Okazaki S, Iizuka Y, Yahagi N, Ohashi K, Yoshida H, Yanai H, Tada N, Gotoda T, Ishibashi S, Kadowaki T, Okazaki H
    • Journal Title

      Journal of Atherosclerosis and Thrombosis

      Volume: 20 Issue: 5 Pages: 481-493

    • DOI

      10.5551/jat.16592

    • NAID

      130004444688

    • ISSN
      1340-3478, 1880-3873
    • Related Report
      2013 Annual Research Report 2012 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 蛋白翻訳領域に変異の無いapoC-II欠損/低下症の分子生物学的解析2013

    • Author(s)
      高瀬暁, 大須賀淳一, 藤田逸人, 原一雄, 高梨幹生, 泉田欣彦, 久保田みどり, 升田紫, 飯塚陽子, 吉田博, 柳内秀勝, 多田紀夫, 山田信博, 石橋俊, 岡崎啓明, 門脇孝
    • Organizer
      第34回日本肥満学会
    • Place of Presentation
      東京
    • Year and Date
      2013-10-12
    • Related Report
      2013 Final Research Report
  • [Presentation] 蛋白翻訳領域に変異の無い非典型的アポC-II 欠損症の分子生物学的解析2013

    • Author(s)
      高瀬暁, 大須賀淳一, 藤田逸人, 原一雄, 高梨幹生, 飯塚陽子, 吉田博, 柳内秀勝, 多田紀夫, 山田信博, 石橋俊, 岡崎啓明, 門脇孝
    • Organizer
      第45回日本動脈硬化学会総会・学術集会
    • Place of Presentation
      東京
    • Year and Date
      2013-07-18
    • Related Report
      2013 Final Research Report
  • [Presentation] Apolipoprotein C-II deficiency with no rare variant in the APOC2 gene2013

    • Author(s)
      高瀬暁, 大須賀淳一, 藤田逸人, 原一雄, 関谷元博, 五十嵐正樹, 高梨幹生, 武内謙憲, 泉田欣彦, 太田啓介, 熊谷真義, 西真貴子, 久保田みどり, 升田紫, 平美乃, 岡崎佐智子, 飯塚陽子, 矢作直也, 大橋健, 吉田博, 柳井秀勝, 多田紀夫, 後藤田貴也, 石橋俊, 岡崎啓明, 門脇孝
    • Organizer
      第56回日本糖尿病学会年次学術集会
    • Place of Presentation
      熊本
    • Year and Date
      2013-05-16
    • Related Report
      2013 Final Research Report
  • [Presentation] Apolipoprotein C-II deficiency with no rare variant in the APOC2 gene

    • Author(s)
      高瀬暁 大須賀淳一 藤田逸人 原一雄 関谷元博 五十嵐正樹 高梨幹生 武内謙憲 泉田欣彦 太田啓介 熊谷真義 西真貴子 久保田みどり 升田紫 平美乃 岡崎佐智子 飯塚陽子 矢作直也 大橋健 吉田博 柳井秀勝 多田紀夫 後藤田貴也 石橋俊 岡崎啓明 門脇孝
    • Organizer
      第56回日本糖尿病学会年次学術集会
    • Place of Presentation
      ホテル日航熊本
    • Related Report
      2013 Annual Research Report
  • [Presentation] 蛋白翻訳領域に変異の無い非典型的アポC-II欠損症の分子生物学的解析

    • Author(s)
      高瀬暁 大須賀淳一 藤田逸人 原一雄 高梨幹生 飯塚陽子 吉田博 柳内秀勝 多田紀夫 山田信博 石橋俊 岡崎啓明 門脇孝
    • Organizer
      第45回日本動脈硬化学会総会・学術集会
    • Place of Presentation
      京王プラザホテル
    • Related Report
      2013 Annual Research Report
  • [Presentation] 蛋白翻訳領域に変異の無いapoC-II欠損/低下症の分子生物学的解析

    • Author(s)
      高瀬暁 大須賀淳一 藤田逸人 原一雄 高梨幹生 泉田欣彦 久保田みどり 升田紫 飯塚陽子 吉田博 柳内秀勝 多田紀夫 山田信博 石橋俊 岡崎啓明 門脇孝
    • Organizer
      第34回日本肥満学会
    • Place of Presentation
      東京国際フォーラム
    • Related Report
      2013 Annual Research Report

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Published: 2013-05-31   Modified: 2019-07-29  

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