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2023 Fiscal Year Final Research Report

Inhibitory Effect of Chloroplast Thylakoid Membrane Glycolipids from Young Barley Leaves on Inflammatory Bowel Disease

Research Project

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Project/Area Number 19K05936
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 38050:Food sciences-related
Research InstitutionKawasaki University of Medical Welfare

Principal Investigator

Oku Kazuyuki  川崎医療福祉大学, 医療技術学部, 教授 (40549797)

Co-Investigator(Kenkyū-buntansha) 宮田 富弘  川崎医療福祉大学, 医療技術学部, 教授 (00200189)
宮田 恵多  山梨学院大学, 健康栄養学部, 准教授 (90736290)
Project Period (FY) 2019-04-01 – 2024-03-31
Keywords炎症性腸疾患 / 腸上皮細胞炎症モデル / 腸管マクロファージ / 炎症性サイトカイン / 抗炎症性サイトカイン
Outline of Final Research Achievements

In this study, we investigated the effects of barley grass-derived glycolipids (YBLP-GL) on intestinal inflammation in an intestinal inflammation model using cultured cells. In an inflammation model using intestinal epithelial-like cells (Caco-2 cells), we confirmed that the addition of YBLP-GL inhibited cytotoxicity and inflammatory cytokine secretion. Next, in an inflammation model using intestinal macrophage-like cells (THP-1 cells), YBLP-GL addition inhibited inflammatory cytokine secretion and anti-inflammatory cytokine IL-10 secretion. YBLP-GL inhibited inflammation in a co-culture system of THP-1 cells and Caco-2 cells as a model of inflammatory bowel disease, suggesting that barley grass-derived glycolipids have an inhibitory effect on intestinal inflammation.

Free Research Field

食品機能科学,生化学

Academic Significance and Societal Importance of the Research Achievements

炎症性腸疾患(IBD : inflammatory bowel disease)は,ストレスなど外的因子に対する腸管自律神経あるいは腸管免疫の異常による炎症メディエーターを介した腸管の炎症によると考えられる.本研究の結果から,腸の炎症を抑制する食品成分の作用を明らかにすることにより,薬剤に対する依存度をできるだけ少なくし,新しいエビデンスの構築と食事療法のあり方を明らかにした.本研究の意義は,未だ根本的な治療法のないIBDに対して解決の糸口を提示するだけでなく,副作用がなく抗炎症作用が期待される食品素材の開発によって,栄養学的側面から患者のQOLを上げ,また医療費の削減にもつなげられる.

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Published: 2025-01-30  

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