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

Distribution and function of very-long-chain lipids in the formation digestive duct barrier.

Research Project

Project/Area Number 19K07060
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 47030:Pharmaceutical hygiene and biochemistry-related
Research InstitutionHokkaido University

Principal Investigator

SASSA TAKAYUKI  北海道大学, 薬学研究院, 准教授 (20342793)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywordsセラミド / バリア機能 / 極長鎖脂肪酸 / 消化管 / 脂質 / バリア / ELOVL1 / 脂肪酸
Outline of Research at the Start

脂質の三大機能として生体膜の形成、エネルギー源、脂質メディエーターとしての生理作用が知られている。申請者は極長鎖脂肪酸(炭素数が20より長い脂肪酸)からなる極長鎖脂質が体表、すなわち皮膚および涙液のバリア機能を担うことを明らかにし、脂質の第四の機能として「体表バリア」を提唱している。本研究は、体表よりも広い表面積を持ち外界と接する消化管のバリア機能における極長鎖脂質の役割を明らかにすることを目指す。マウスおよびヒトの消化管を構成する極長鎖脂質のプロファイルを質量分析法により明らかにし、脂肪酸伸長酵素ELOVL1の遺伝子改変マウスを用いて消化管バリア機能における極長鎖脂質の役割を明らかにする。

Outline of Final Research Achievements

Very-long-chain lipids, which contain >C20 hydrocarbon chain(s), are important for the formation of permeability barrier on the body surface. This study was aimed at elucidating the role of very-long-chain lipids in barrier formation in the digestive tract, which have larger surface area than the body surface. Analysis of lipids in mouse digestive tract by mass spectrometry demonstrated that particular types of very-long-chain ceramides, which are involved in skin barrier, were present in the oral cavity, esophagus, and forestomach. Furthermore, we demonstrated that oral barrier was impaired in mice with reduced very-long-chain ceramides in the oral mucosa.

Academic Significance and Societal Importance of the Research Achievements

消化管は食事、喫煙、薬物などに由来する質・量共に多様な化学物質および体表とは異なる病原体や常在細菌に晒されている。本研究では表皮にのみ存在すると考えられていたタイプの極長鎖セラミドが表皮と同じ重層扁平上皮組織である口腔、食道、前胃に存在し、口腔バリア形成に重要であることを明らかにした。極長鎖セラミドは口腔バリア疾患と関連する可能性があり、診断や治療におけるターゲットとなりうることが示唆された。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (37 results)

All 2022 2021 2020 2019 Other

All Int'l Joint Research (2 results) Journal Article (10 results) (of which Peer Reviewed: 10 results,  Open Access: 4 results) Presentation (23 results) (of which Int'l Joint Research: 4 results,  Invited: 2 results) Remarks (2 results)

  • [Int'l Joint Research] Demiroglu Bilim University/Istanbul University/Acibadem MAA University(トルコ)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] Istanbul University/Acibadem University(トルコ)

    • Related Report
      2020 Research-status Report
  • [Journal Article] Protein‐bound ceramide levels in the epidermis of transglutaminase 1‐deficient mice2021

    • Author(s)
      Sassa Takayuki、Imai Yasutomo、Kihara Akio、Yamanishi Kiyofumi
    • Journal Title

      The Journal of Dermatology

      Volume: 48 Issue: 11 Pages: 1799-1801

    • DOI

      10.1111/1346-8138.16113

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Impaired Skin Barrier Function Due to Reduced ω-O-Acylceramide Levels in a Mouse Model of Sjogren-Larsson Syndrome2021

    • Author(s)
      Nojiri Koki、Fudetani Shuhei、Arai Ayami、Kitamura Takuya、Sassa Takayuki、Kihara Akio
    • Journal Title

      Molecular and Cellular Biology

      Volume: 41 Issue: 10

    • DOI

      10.1128/mcb.00352-21

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Diverse meibum lipids produced by Awat1 and Awat2 are important for stabilizing tear film and protecting the ocular surface2021

    • Author(s)
      Sawai Megumi、Watanabe Keisuke、Tanaka Kana、Kinoshita Wataru、Otsuka Kento、Miyamoto Masatoshi、Sassa Takayuki、Kihara Akio
    • Journal Title

      iScience

      Volume: 24 Issue: 5 Pages: 102478-102478

    • DOI

      10.1016/j.isci.2021.102478

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Improvement of Evaporative Dry Eye With Meibomian Gland Dysfunction in Model Mice by Treatment With Ophthalmic Solution Containing Mineral Oil2021

    • Author(s)
      Watanabe Keisuke、Yoshida Masataka、Okumura Takashi、Sassa Takayuki、Kihara Akio、Uchiyama Akira
    • Journal Title

      Translational Vision Science & Technology

      Volume: 10 Issue: 4 Pages: 21-21

    • DOI

      10.1167/tvst.10.4.21

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Comprehensive stratum corneum ceramide profiling reveals reduced acylceramides in ichthyosis patient with CERS3 mutations2021

    • Author(s)
      Yamamoto Moe、Sassa Takayuki、Kyono Yuki、Uemura Hiroyasu、Kugo Masaaki、Hayashi Hideki、Imai Yasutomo、Yamanishi Kiyofumi、Kihara Akio
    • Journal Title

      The Journal of Dermatology

      Volume: 48 Issue: 4 Pages: 447-456

    • DOI

      10.1111/1346-8138.15725

    • NAID

      120007186306

    • Related Report
      2021 Annual Research Report 2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Production of branched-chain very-long-chain fatty acids by fatty acid elongases and their tissue distribution in mammals2021

    • Author(s)
      Tanno Honoka, Sassa Takayuki, Sawai Megumi, Kihara Akio
    • Journal Title

      Biochimica et Biophysica Acta (BBA) - Molecular and Cell Biology of Lipids

      Volume: 1866 Issue: 1 Pages: 158842-158842

    • DOI

      10.1016/j.bbalip.2020.158842

    • Related Report
      2021 Annual Research Report 2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Lipid polarity gradient formed by ω-hydroxy lipids in tear film prevents dry eye disease2020

    • Author(s)
      Miyamoto Masatoshi、Sassa Takayuki、Sawai Megumi、Kihara Akio
    • Journal Title

      eLife

      Volume: 9

    • DOI

      10.7554/elife.53582

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Severe Skin Permeability Barrier Dysfunction in Knockout Mice Deficient in a Fatty Acid ω-Hydroxylase Crucial to Acylceramide Production2020

    • Author(s)
      Miyamoto Masatoshi、Itoh Narumi、Sawai Megumi、Sassa Takayuki、Kihara Akio
    • Journal Title

      Journal of Investigative Dermatology

      Volume: 140 Issue: 2 Pages: 319-326

    • DOI

      10.1016/j.jid.2019.07.689

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Novel biallelic FA2H mutations in a Japanese boy with fatty acid hydroxylase-associated neurodegeneration2020

    • Author(s)
      Kawaguchi Masahiro、Sassa Takayuki、Kidokoro Hiroyuki、Nakata Tomohiko、Kato Kohji、Muramatsu Hideki、Okuno Yusuke、Yamamoto Hiroyuki、Kaname Tadashi、Kihara Akio、Natsume Jun
    • Journal Title

      Brain and Development

      Volume: 42 Issue: 2 Pages: 217-221

    • DOI

      10.1016/j.braindev.2019.11.006

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Reduced chain length in myelin sphingolipids and poorer motor coordination in mice deficient in the fatty acid elongase Elovl12019

    • Author(s)
      Isokawa Masashi、Sassa Takayuki、Hattori Satoko、Miyakawa Tsuyoshi、Kihara Akio
    • Journal Title

      FASEB BioAdvances

      Volume: 1 Issue: 12 Pages: 747-759

    • DOI

      10.1096/fba.2019-00067

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] ELOVL4遺伝子変異による脳神経疾患SCA34およびISQMRの発症メカニズム解明2022

    • Author(s)
      田村優花, 佐々貴之, 木原章雄
    • Organizer
      日本薬学会第142年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] アシルセラミド/結合型セラミドによる口腔粘膜上皮バリア形成2021

    • Author(s)
      佐々貴之, 木原章雄
    • Organizer
      第94回日本生化学会大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] アシルセラミド/結合型セラミドは口腔粘膜上皮の物質透過性バリア形成に関わる2021

    • Author(s)
      佐々貴之, 木原章雄
    • Organizer
      第14回セラミド研究会学術集会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 皮膚バリア脂質アシルセラミド/結合型セラミドの口腔および食道の粘膜上皮における存在と機能2021

    • Author(s)
      佐々貴之, 木原章雄
    • Organizer
      第63回日本脂質生化学会
    • Related Report
      2021 Annual Research Report
  • [Presentation] アシル基転移酵素 Awat1 および Awat2 が生み出すマイバム脂質多様性とドライアイ防止における役割2021

    • Author(s)
      澤井恵, 木下航, 大塚賢人, 宮本政宗, 佐々貴之, 木原章雄
    • Organizer
      第63回日本脂質生化学会
    • Related Report
      2021 Annual Research Report
  • [Presentation] マイバム脂質中のステロールエステルにおけるステロール多様性2021

    • Author(s)
      木下航, 佐々貴之, 木原章雄
    • Organizer
      日本薬学会北海道支部148回例会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 新規ELOVL1変異を持つ魚鱗癬患者の角質層の包括的セラミドプロファイリング2020

    • Author(s)
      髙橋多衣子, 佐々貴之, 木原章雄
    • Organizer
      第13回セラミド研究会学術集会
    • Related Report
      2020 Research-status Report
  • [Presentation] 魚鱗癬を引き起こすセラミド合成酵素CERS3変異の活性および角質層セラミド組成への影響2020

    • Author(s)
      山本萌恵, 佐々貴之, 京野由紀, 上村裕保, 久呉真章, 林秀樹, 今井康友, 山西清文, 木原章雄
    • Organizer
      第93回日本生化学会大会
    • Related Report
      2020 Research-status Report
  • [Presentation] 極長鎖分岐鎖脂肪酸の伸長と代謝及び組織分布の解明2020

    • Author(s)
      丹野歩乃佳, 佐々貴之, 澤井恵, 木原章雄
    • Organizer
      第19回次世代を担うファーマ・バイオフォーラム2020
    • Related Report
      2020 Research-status Report
  • [Presentation] 魚鱗癬を引き起こすセラミド合成酵素CERS3変異の活性および角質層セラミド組成への影響2020

    • Author(s)
      山本萌恵, 佐々貴之, 木原章雄
    • Organizer
      日本薬学会北海道支部147回例会
    • Related Report
      2020 Research-status Report
  • [Presentation] アシル基転移酵素Awat1および2が生み出す多様なエステル分子種と涙液油層における役割2020

    • Author(s)
      澤井恵, 大塚賢人, 宮本政宗, 丹野歩乃佳, 佐々貴之, 木原章雄
    • Organizer
      第62回日本脂質生化学会
    • Related Report
      2020 Research-status Report
  • [Presentation] ω水酸化脂質による涙液油層中の極性勾配形成がドライアイを防止する2020

    • Author(s)
      宮本政宗, 佐々貴之, 澤井恵, 木原章雄
    • Organizer
      第62回日本脂質生化学会
    • Related Report
      2020 Research-status Report
  • [Presentation] 極長鎖スフィンゴ脂質の短鎖化によるミエリン厚低下と協調運動障害2020

    • Author(s)
      佐々貴之, 磯川昌志, 服部聡子, 宮川剛, 木原章雄
    • Organizer
      先端モデル動物支援プラットフォーム 成果発表会
    • Related Report
      2019 Research-status Report
  • [Presentation] アシル基転移酵素Awat1および2が産生する多様なエステル分子種によるドライアイ防止2020

    • Author(s)
      澤井恵, 大塚賢人, 宮本政宗, 丹野歩乃佳, 佐々貴之, 木原章雄
    • Organizer
      日本薬学会第140年会
    • Related Report
      2019 Research-status Report
  • [Presentation] Acylceramide production and skin barrier formation by the fatty acid omega-hydroxylase CYP4F22/Cyp4f39.2019

    • Author(s)
      Itoh N, Ohno Y, Sassa T, Kihara A
    • Organizer
      FEBS Special Meeting on Sphingolipid Biology
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 分岐鎖脂肪酸の伸長と組織分布の解明2019

    • Author(s)
      丹野歩乃佳, 佐々貴之, 木原章雄
    • Organizer
      日本薬学会北海道支部146回例会
    • Related Report
      2019 Research-status Report
  • [Presentation] Very long-chain lipids produced by the fatty acid elongase ELOVL1 are important for myelin formation and motor coordination.2019

    • Author(s)
      Sassa T, Isokawa M, Kihara A
    • Organizer
      60th International Conference on the Bioscience of Lipids
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Establishment of Sjogren-Larsson syndrome model mouse leading to elucidation of the skin pathogenesis mechanism.2019

    • Author(s)
      Nojiri K, Fudetani S, Sassa T, Kihara A
    • Organizer
      60th International Conference on the Bioscience of Lipids
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 極長鎖脂質による体表バリアの形成2019

    • Author(s)
      佐々貴之, 木原章雄
    • Organizer
      第61回日本脂質生化学会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] シェーグレン・ラルソン症候群皮膚病態モデルマウスの確立と病態発症機構の解明2019

    • Author(s)
      野尻光希, 筆谷周平, 佐々貴之, 木原章雄
    • Organizer
      第61回日本脂質生化学会
    • Related Report
      2019 Research-status Report
  • [Presentation] Decreases in chain lengths and level of myelin sphingolipids are associated with hypomyelination and deficient motor coordination in mice lacking fatty acid elongase ELOVL1.2019

    • Author(s)
      Sassa T, Isokawa M, Kihara A
    • Organizer
      第42回日本神経科学大会・第62回日本神経化学会大会
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 分岐鎖脂肪酸の伸長酵素および組織分布の解明2019

    • Author(s)
      丹野歩乃佳, 佐々貴之, 木原章雄
    • Organizer
      第92回日本生化学会大会
    • Related Report
      2019 Research-status Report
  • [Presentation] Very-long-chain lipids function as barrier lipids.2019

    • Author(s)
      Sassa T
    • Organizer
      The 10th Annual Congress of Pan Asian-Pacific Skin Barrier Research Society
    • Related Report
      2019 Research-status Report
    • Invited
  • [Remarks] 北海道大学大学院薬学研究院生化学研究室HP

    • URL

      http://www.pharm.hokudai.ac.jp/seika/index.html

    • Related Report
      2020 Research-status Report
  • [Remarks] 北海道大学大学院薬学研究院 創薬科学部門 生体機能科学分野 生化学研究室

    • URL

      http://www.pharm.hokudai.ac.jp/seika/index.html

    • Related Report
      2019 Research-status Report

URL: 

Published: 2019-04-18   Modified: 2023-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi