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2022 Fiscal Year Final Research Report

The functions of a diacylglycerol kinase on cancer cells

Research Project

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Project/Area Number 19K05817
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 38030:Applied biochemistry-related
Research InstitutionSapporo Medical University

Principal Investigator

KAI Masahiro  札幌医科大学, 医学部, 講師 (80260777)

Project Period (FY) 2019-04-01 – 2023-03-31
Keywordsdiacylglycerol kinase / cancer
Outline of Final Research Achievements

We investigated the functions of diacylglycerol kinase gamma (DGKG) in melanoma cells. We found that DGKG was downregulated in melanoma cell lines and primary melanoma tissues. Ectopic expression of DGKG significantly suppressed of cell migration and invasion by melanoma cells, suggesting that DGKG is a putative tumor suppressor in melanoma. To elucidate its biological function, we performed microarray assay and found that DGKG may modulate expression of NF-κB signaling-related genes in melanoma cells. Notably, ectopic expression of DGKG significantly downregulated NFKB1 and RELB, suggesting that DGKG may suppress NF-κB signaling. Reporter assays further confirmed that DGKG significantly suppressed tumor necrosis factor-α-induced NF-κB signaling in melanoma cells. Our results suggest that DGKG may play a tumor suppressor role via suppressing NF-κB signaling in melanoma cells.

Free Research Field

分子生物学

Academic Significance and Societal Importance of the Research Achievements

本研究はメラノーマにおいてDGKγががん抑制的に機能していることを明らかにしたものである。がん研究の観点からはそれほど大きなインパクトを与えることはないかもしれないが、がんに関する細胞内シグナリング経路に新たな一面を提示できたという点で一定の意味がある。一方DGK研究の分野ではDGKアイソフォームの一つに重要な機能が存在していることを解明した重要な研究である。本研究を発展させることでメラノーマの予後マーカーや治療薬の開発に応用できる可能性もあり、意義ある研究と評価できる。

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Published: 2024-01-30  

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