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Intratumoral Injection of Propionibacterium Acnes Suppresses Malignant Melanoma by Enhancing Th1 Immune Responses
http://hdl.handle.net/10076/14233
http://hdl.handle.net/10076/14233ce75d21f-7a4d-458c-a7ef-e6fb9c6aaed6
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2013DM009.pdf (569.5 kB)
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Item type | 学位論文 / Thesis or Dissertation(1) | |||||||||||
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公開日 | 2014-10-21 | |||||||||||
タイトル | ||||||||||||
タイトル | Intratumoral Injection of Propionibacterium Acnes Suppresses Malignant Melanoma by Enhancing Th1 Immune Responses | |||||||||||
言語 | en | |||||||||||
言語 | ||||||||||||
言語 | eng | |||||||||||
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資源タイプ識別子 | http://purl.org/coar/resource_type/c_db06 | |||||||||||
資源タイプ | doctoral thesis | |||||||||||
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アクセス権 | open access | |||||||||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||||||
著者 |
津田, 憲志郎
× 津田, 憲志郎
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抄録 | ||||||||||||
内容記述タイプ | Abstract | |||||||||||
内容記述 | Malignant melanoma ( MM) is an aggressive cutaneous malignancy associated with poor prognosis; many putatively therapeutic agents have been administered, but with mostly unsuccessful results. Propionibacterium acnes ( P. acnes) is an aerotolerant anaerobic gram-positive bacteria that causes acne and inflammation. After being engulfed and processed by phagocytes, P. acnes induces a strong Th1-type cytokine immune response by producing cytokines such as IL-12, IFN-gamma and TNF-alpha. The characteristic Th2-mediated allergic response can be counteracted by Th1 cytokines induced by P. acnes injection. This inflammatory response induced by P. acnes has been suggested to have antitumor activity, but its effect on MM has not been fully evaluated. We analyzed the anti-tumor activity of P. acnes vaccination in a mouse model of MM. Intratumoral administration of P. acnes successfully protected the host against melanoma progression in vivo by inducing both cutaneous and systemic Th1 type cytokine expression, including TNF-alpha and IFN-gamma, which are associated with subcutaneous granuloma formation. P. acnes-treated tumor lesions were infiltrated with TNF-alpha and IFN-gamma positive T cells. In the spleen, TNF-alpha as well as IFN-gamma producing CD8(+) T cells were increased, and interestingly, the number of monocytes was also increased following P. acnes administration. These observations suggest that P. acnes vaccination induces both systemic and local antitumor responses. In conclusion, this study shows that P. acnes vaccination may be a potent therapeutic alternative in MM. | |||||||||||
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内容記述タイプ | Other | |||||||||||
内容記述 | 本文 / Department of Dermatology, Graduate School of Medicine, Mie University | |||||||||||
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内容記述タイプ | Other | |||||||||||
内容記述 | 9p | |||||||||||
書誌情報 |
発行日 2013-01-01 |
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DOI | ||||||||||||
識別子タイプ | DOI | |||||||||||
関連識別子 | 10.1371/journal.pone.0029020 | |||||||||||
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内容記述タイプ | Other | |||||||||||
内容記述 | application/pdf | |||||||||||
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出版タイプ | VoR | |||||||||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||
出版者 | ||||||||||||
出版者 | 三重大学 | |||||||||||
出版者(ヨミ) | ||||||||||||
値 | ミエダイガク | |||||||||||
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関連名称 | http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0029020 | |||||||||||
学位名 | ||||||||||||
学位名 | 博士 (医学) | |||||||||||
学位授与機関 | ||||||||||||
学位授与機関識別子Scheme | kakenhi | |||||||||||
学位授与機関識別子 | 14101 | |||||||||||
学位授与機関名 | 三重大学 | |||||||||||
学位授与年月日 | ||||||||||||
学位授与年月日 | 2013-09-18 | |||||||||||
学位授与番号 | ||||||||||||
学位授与番号 | 甲医学第1640号 | |||||||||||
ノート | ||||||||||||
値 | PLOS ONE, 6巻, 12号, 2011, ISSN: 1932-6203に掲載 | |||||||||||
資源タイプ(三重大) | ||||||||||||
値 | Doctoral Dissertation / 博士論文 |