2023 Fiscal Year Final Research Report
Development of CXCL1 target therapy for cancer-associated fibroblasts in scirrhous gastric carcinoma
Project/Area Number |
21H03008
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Single-year Grants |
Section | 一般 |
Review Section |
Basic Section 55020:Digestive surgery-related
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Research Institution | Osaka Metropolitan University (2022-2023) Osaka City University (2021) |
Principal Investigator |
Yashiro Masakazu 大阪公立大学, 大学院医学研究科, 准教授 (60305638)
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Co-Investigator(Kenkyū-buntansha) |
山本 百合恵 大阪公立大学, 大学院医学研究科, 研究員 (30909924)
福岡 達成 大阪公立大学, 大学院医学研究科, 講師 (50793783)
杉本 敦史 大阪公立大学, 大学院医学研究科, 学外研究員 (80897356)
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Project Period (FY) |
2021-04-01 – 2024-03-31
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Keywords | スキルス胃癌 / CXCL1 / CXCR2 / 癌関連線維芽細胞 / シグナル阻害剤 |
Outline of Final Research Achievements |
A novel drug against intractable carcinomas has been urgently desired. We previously reported that CXCL1 might play an important role for the progression of intractable carcinoma. Then, we aimed to develop anti-CXCL1 neutralizing monoclonal antibodies (mAbs) drug. The anti-tumor effects of CXCL1 mAbs were examined using the scirrhous gastric cancer model as an intractable carcinomas model. Three clones of CXCL1 mAb showed remarkable anti- CXCL1 activity. The administration of the CXCL1 mAbs decreased the tumor size of scirrhous gastric cancer, in compared with control group. Histological studies indicated the decrease of the stromal cells. We have successfully developed promising neutralizing mAbs drugs by the academia-pharma collaboration. The targeting therapy against CXCL1-CXCR2 signaling might be useful as a novel strategy for intractable carcinomas.
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Free Research Field |
分子腫瘍学
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Academic Significance and Societal Importance of the Research Achievements |
スキルス胃癌は、間質組織の増生を伴いながら急速広範に進展し、予後不良な難治性の癌である。このスキルス胃癌の制御は消化器外科医の念願である。スキルス胃癌は、間質組織の増生を伴いながらの増殖進展が特徴的である。本研究により、CXCL1/CXCR2シグナル阻害剤が、スキルス胃癌細胞の癌関連線維芽細胞(CAF)増生を抑制することで、マウスのスキルス胃癌を抑制することを確認出来たため、今後ヒトのスキルス胃癌治療薬開発に有望と考えられ、難治癌に征圧に向けて学術的意義が大きいと考えられる。
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