2017 Fiscal Year Final Research Report
Identification of immunosuppressive factor in tumor microenvironment in patient with lung cancer
| Project/Area Number |
16K18463
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Tumor therapeutics
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| Research Institution | Kawasaki Medical School |
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Principal Investigator |
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| Research Collaborator |
Oka MIKIO 川崎医科大学, 医学部・呼吸器内科学, 教授 (40223995)
Kurose KOJI 川崎医科大学, 医学部・呼吸器内科学, 臨床助教 (30551139)
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| Project Period (FY) |
2016-04-01 – 2018-03-31
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| Keywords | 肺がん / がん抗原 / 免疫療法 / 免疫チェックポイント分子 |
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| Outline of Final Research Achievements |
The effect of immunotherapy in lung cancer is still insufficient, and elucidation of new immunosuppressive mechanism is important. In this study, expression of PD-1 and TIM-3 on tumor-infiltrating T cells and expression of their ligands on tumor cells were examined and analyzed for correlation with survival. Expression of PD-L1 and galectin-9 and XAGE 1 antigens on tumor cells were independent prognostic factors of TNM classification (HR: 0.40, p = 0.01).
Based on the above results, the survival of patients with lung adenocarcinoma can be predicted by investigating the tumor microenvironment in detail. Furthermore, in addition to the PD-1 / PD-L1 pathway, the TIM-3 / galectin-9 pathway is also important in the tumor microenvironment and development of cancer immunotherapy that inhibits them is very important.
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| Free Research Field |
腫瘍免疫学
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