2023 Fiscal Year Final Research Report
Functional analysis of MicroRNA-204-5p and TRPM3 in renal cell carcinoma
Project/Area Number |
20K16450
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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 50020:Tumor diagnostics and therapeutics-related
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Research Institution | Kumamoto University |
Principal Investigator |
Kurahashi Ryoma 熊本大学, 大学院生命科学研究部(医), 助教 (80867945)
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Project Period (FY) |
2020-04-01 – 2024-03-31
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Keywords | 腎細胞癌 / micro RNA / TRPM3 / オートファジー / CRISPR/Cas9 |
Outline of Final Research Achievements |
In Xp11.2 translocation renal cell carcinoma, we investigated how the expression of miR-204-5p and TRPM3 genes is regulated by PRCC-TFE3, and how they affect tumor control. Although it was found that PRCC-TFE3 binds to the Ebox near TRPM3, the subsequent regulation of expression could not be elucidated because the reproducibility was not achieved in the established cell lines. We also examined tumor control via autophagy using a patient-derived line of translocation renal cell carcinoma, but the autophagy mechanism shown in clear cell renal cell carcinoma could not be confirmed in translocation renal cell carcinoma.
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Free Research Field |
泌尿器腫瘍学
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Academic Significance and Societal Importance of the Research Achievements |
Xp11.2転座型腎細胞癌モデルマウスの尿中において発症初期から上昇するmiR-204-5pはバイオマーカーとしての可能性は残されているが、腫瘍細胞中での挙動は不明なところが多い。PRCC-TFE3がmiR-204-5pをイントロンに含むTRPM3に結合し得ることから、直接的な制御機構が考えられる。一方でオートファジーを介した腫瘍制御は淡明細胞型腎細胞癌と転座型腎細胞癌では挙動が異なる部分があり、これが本来腫瘍抑制的に働くはずのmiR-204-5pが早期から上昇することや転座型腎癌の予後が極めて悪い理由につながっている可能性がある。
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