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        <identifier>oai:kindai.repo.nii.ac.jp:02000304</identifier>
        <datestamp>2024-10-23T00:49:06Z</datestamp>
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          <dc:title xml:lang="ja">P2受容体を標的としたメモリーCTL誘導ワクチンシステムの開発</dc:title>
          <dc:title xml:lang="en">Memory CTL-inducing vaccine sistem targeting P2 recepors</dc:title>
          <jpcoar:creator>
            <jpcoar:nameIdentifier nameIdentifierScheme="e-Rad">70615921</jpcoar:nameIdentifier>
            <jpcoar:creatorName xml:lang="ja">松尾, 一彦</jpcoar:creatorName>
            <jpcoar:creatorName xml:lang="en">Matsuo, Kazuhiko</jpcoar:creatorName>
            <jpcoar:affiliation>
              <jpcoar:nameIdentifier nameIdentifierScheme="kakenhi">34419</jpcoar:nameIdentifier>
              <jpcoar:affiliationName xml:lang="ja">近畿大学</jpcoar:affiliationName>
              <jpcoar:affiliationName xml:lang="en">Kindai University</jpcoar:affiliationName>
            </jpcoar:affiliation>
          </jpcoar:creator>
          <jpcoar:subject xml:lang="ja" subjectScheme="Other">ワクチンアジュバント</jpcoar:subject>
          <jpcoar:subject xml:lang="en" subjectScheme="Other">CTL</jpcoar:subject>
          <jpcoar:subject xml:lang="en" subjectScheme="Other">Th17</jpcoar:subject>
          <datacite:description xml:lang="ja" descriptionType="Abstract">本研究において、CD70陽性樹状細胞が鼻腔内粘膜固有層に存在し、P2X1,2,4受容体を発現することを明らかにした。また、CD70陽性樹状細胞はαβ-ATPの刺激によりTh17細胞分化を促進した。さらに、モデル抗原OVAとともにαβ-ATPを経鼻投与したマウスにおいて、エフェクターフェーズだけでなく、メモリーフェーズにおいてCTLの誘導および抗腫瘍効果が認められ、P2受容体阻害剤であるsuraminの前投与により、上記の免疫応答は抑制された。これらの結果は、αβ-ATPはTh17細胞誘導を介してエフェクターおよびメモリーCTLを誘導できる粘膜免疫アジュバントとして有用であることを示唆している。</datacite:description>
          <datacite:description xml:lang="en" descriptionType="Abstract">We showed that (i) CD70+ dendritic cells (DCs) were present in the nasal lamina propria and expressed P2X1R, P2X2R and P2X4R; (ii) CD70+DCs but not CD70-DCs enhanced Th17 cell differentiation of cocultured splenic CD4+ T cells upon stimulation with αβ-ATP; (iii) mice intranasally immunized with ovalbumin (OVA) and αβ-ATP had increased OVA-specific Th17 cells and CTLs in the nasal lamina propria and regional lymph nodes at both an effector phase and a memory phase; (iv) mice intranasally immunized with OVA and αβ-ATP also inhibited E.G7-OVA tumor growth; (v) suramin, a broad-range inhibitor of P2 receptors, suppressed the increases of OVA-specific Th17 cells and CTLs, and antitumor effect. Collectively, αβ-ATP may be a promising mucosal adjuvant that promotes antigen-specific effector and memory CTL responses via CD70+ DC-mediated Th17 induction.</datacite:description>
          <datacite:description xml:lang="ja" descriptionType="Other">研究分野：免疫学</datacite:description>
          <dc:language>jpn</dc:language>
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          <jpcoar:identifier identifierType="URI">https://kindai.repo.nii.ac.jp/records/2000304</jpcoar:identifier>
          <jpcoar:fundingReference>
            <jpcoar:funderName xml:lang="ja">独立行政法人日本学術振興会</jpcoar:funderName>
            <jpcoar:funderName xml:lang="en">Japan Society for the Promotion of Science</jpcoar:funderName>
            <datacite:awardNumber awardURI="https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20K08850/">20K08850</datacite:awardNumber>
            <jpcoar:awardTitle xml:lang="ja">P2受容体を標的としたメモリーCTL誘導ワクチンシステムの開発</jpcoar:awardTitle>
            <jpcoar:awardTitle xml:lang="en">Memory CTL-inducing vaccine sistem targeting P2 recepors</jpcoar:awardTitle>
          </jpcoar:fundingReference>
          <jpcoar:sourceTitle xml:lang="ja">科学研究費助成事業研究成果報告書 (2022)</jpcoar:sourceTitle>
          <jpcoar:numPages>6</jpcoar:numPages>
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