2022 Fiscal Year Final Research Report
The functions of a diacylglycerol kinase on cancer cells
Project/Area Number |
19K05817
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Review Section |
Basic Section 38030:Applied biochemistry-related
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Research Institution | Sapporo Medical University |
Principal Investigator |
KAI Masahiro 札幌医科大学, 医学部, 講師 (80260777)
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Project Period (FY) |
2019-04-01 – 2023-03-31
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Keywords | diacylglycerol 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.
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Free Research Field |
分子生物学
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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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