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2022 Fiscal Year Final Research Report

Development of a new therapeutic method for respiratory diseases targeting PLCepsilon

Research Project

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Project/Area Number 20K08567
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 53030:Respiratory medicine-related
Research InstitutionKobe University

Principal Investigator

Nagano Tatsuya  神戸大学, 医学研究科, 講師 (80624684)

Co-Investigator(Kenkyū-buntansha) 西村 善博  神戸大学, 医学部附属病院, 名誉教授 (20291453)
小林 和幸  神戸大学, 医学部附属病院, 特命教授 (50403275)
Project Period (FY) 2020-04-01 – 2023-03-31
Keywords肺がん / PLCε / ras
Outline of Final Research Achievements

We have reported that phospholipase Cε (PLCε), one of the target proteins of the ras oncogene has a crucial role in signal transduction through the production of second messengers and that PLCε has a role in inflammation and carcinogenesis through NF-κB. Then, PLCε is thought to be promising molecular target for inflammatory diseases and inflammation-mediated cancer.
In this study, we generated a PLCε gene-modified K-ras (LSL-K-rasG12V/PLCεΔx/Δx) mouse model. We also created a mouse model subcutaneously transplanted with a Lewis lung cancer-derived cell line (LLC), and showed that knock out of PLCε suppressed tumor growth and tended to improve the survival rate.

Free Research Field

呼吸器内科

Academic Significance and Societal Importance of the Research Achievements

rasがん遺伝子産物Rasの標的蛋白質の一つであるPLCεは炎症や発がんに関与することを報告してきた。本研究は、PLCεを介した呼吸器疾患の新たな発病機序を、K-ras遺伝子変異陽性非小細胞肺がん(NSCLC)の疾患モデルを用いて明らかにし、呼吸器疾患の新たな治療戦略を構築することを目的としている。ras誘導性のがんはヒトの悪性腫瘍の約20%と極めて高頻度に認められている。本研究成果はNSCLCの新規治療法の開発に寄与するだけでなく、K-ras遺伝子変異が関与する複数のがん種に応用展開され、生命予後を改善しうるものとして期待される。

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Published: 2024-01-30  

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