2023 Fiscal Year Final Research Report
Elucidation of the mechanism behind the occurrence of recurrent respiratory papillomatosis in the chorioallantoic membrane model.
Project/Area Number |
20K18247
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Research Category |
Grant-in-Aid for Early-Career Scientists
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Allocation Type | Multi-year Fund |
Review Section |
Basic Section 56050:Otorhinolaryngology-related
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Research Institution | Kanazawa University |
Principal Investigator |
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Project Period (FY) |
2020-04-01 – 2024-03-31
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Keywords | 喉頭乳頭腫 / 鶏卵モデル / シドフォビル |
Outline of Final Research Achievements |
We set the conditions for the development of chicken eggs. The recurrent respiratory papillomatosis (RRP) tumor tissues were implanted on day 9 of the incubation and confirmed the adhesion to the experimental chorioallantoic membranes (CAM). Three days after the implantation, cidofovir was injected to the RRP tumor tissues. The two of eight RRP tumor tissues were disappeared. HPV DNA was detected in eight of eleven patients, comprising HPV11 in one case and HPV6 in 7 cases. The correlation of the adherence rate, the vascularization, and the clinical findings was not identified.
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Free Research Field |
耳鼻咽喉科頭頸部外科
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Academic Significance and Societal Importance of the Research Achievements |
本研究において、腫瘍正着率と血管新生の程度と臨床像との明らかな相関を確認することは出来なかった。しかし、シドフォビル注入によって鶏卵に移植された喉頭乳頭腫の消失を認めた。HPV DNAの解析ではtype6が有意であり、HPV11との比較検討は出来なかった。以上のことから、腫瘍正着率と血管新生の程度との相関については定かではないものの、鶏卵モデルによって乳頭腫に対する抗腫瘍効果を同定し得る可能性が示された。今後は今回検討出来なかったベバシズマブを含め種々の薬剤を用いた検討が望まれる。
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