2021 Fiscal Year Final Research Report
Identification of new diagnostic and therapeutic targets for malignant mesothelioma focusing on tight junction molecules
Project/Area Number |
19K18224
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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 55040:Respiratory surgery-related
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Research Institution | Fukushima Medical University |
Principal Investigator |
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Project Period (FY) |
2019-04-01 – 2022-03-31
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Keywords | 悪性胸膜中皮腫 / タイト結合 / Claudin / モノクローナル抗体 |
Outline of Final Research Achievements |
Malignant pleural mesothelioma is a highly malignant disease with a poor prognosis. Multiple diagnostic markers are needed for a quicker and more reliable diagnosis. In this study, we focused on CLDN (Claudin), which forms tight junctions between cells, and discovered that CLDN15 is highly expressed in medium cells from 25 types of CLDN. We also produced a monoclonal antibody that recognizes CLDN15 and investigated whether CLDN15 is useful as a new diagnostic marker for malignant pleural mesothelioma. The positive rate of malignant pleural mesothelioma was as high as 83%, and CLDN15 was useful as a new diagnostic marker in the diagnosis of malignant pleural mesothelioma and could be used in clinical practice.
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Free Research Field |
胸部外科
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Academic Significance and Societal Importance of the Research Achievements |
悪性胸膜中皮腫は種々の悪性腫瘍に類似した多彩な組織像を示すため、診断に難渋することがあります。特に浸潤性肺腺癌とは、臨床的にも病理組織所見的にも類似していることがあります。しかし、両者の治療方法はまったく異なるため、より迅速でより正確な診断が必要となります。既存のマーカーは偽陽性や偽陰性を示すことがあり、新たなマーカーの開発が求められております。本研究でCLDN15が悪性胸膜中皮腫の新規診断マーカーとして有用であることを示せたことで、悪性胸膜中皮腫の診断が今までより速く正確に行うことが可能となり、早期治療介入が可能となることが予想されます。
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