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2021 Fiscal Year Final Research Report

Investigation of chondroitin sulfate (CS) receptors and their functions using CS-containing nanoparticle complex newly prepared

Research Project

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Project/Area Number 17K07352
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Functional biochemistry
Research InstitutionAichi Medical University

Principal Investigator

Sugiura Nobuo  愛知医科大学, 分子医科学研究所, 客員研究員 (90454420)

Project Period (FY) 2017-04-01 – 2022-03-31
Keywordsコンドロイチン硫酸 / プロテオグリカン / ナノ粒子 / リポソーム / マラリア原虫 / VAR2CSA / 神経細胞 / PTPRsigma
Outline of Final Research Achievements

Chondroitin sulfate (CS), a linear acidic polysaccharide, is related to many important biological reactions for example nerve injury and microbial infections. We analyzed interactions of CS molecules with CS-binding proteins, such as neurite receptor PTPRsigma; and malaria parasite-expressing protein VAR2CSA using artificial synthesized CS library constructed previously. Then we analyzed fusing interaction of CS clusters with CS binding protein-expressed CS-deficient cells using CS-containing nanoparticle complex (CS-liposome) newly prepared. Furthermore, we examined effects of anti-malaria medicine-containing CS-liposome against malaria parasite-infected erythrocytes.

Free Research Field

生化学,糖鎖生物学

Academic Significance and Societal Importance of the Research Achievements

細胞表面の神経細胞受容体PTPRsigmaとCS-ナノ粒子複合体との相互作用解析により,CS糖鎖のクラスター効果によるPTPRsigma等のCS受容体のシグナル伝達系への研究展開が可能となる。
マラリア原虫産生タンパク質VAR2CSA産生細胞とCS-リポソームとの相互作用解析により胎盤マラリアの作用機序を見い出すことと,抗マラリア剤封入CS-リポソーム製剤を用いてマラリア感染赤血球培養系でマラリア原虫に対する効果を確認することで,新規な妊娠マラリア治療薬開発への基盤となる。

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Published: 2023-01-30  

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