2021 Fiscal Year Final Research Report
Functional analysis of BMP pathway for sensitivity of radiotherapy of rectal cancer
Project/Area Number |
20K22835
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Research Category |
Grant-in-Aid for Research Activity Start-up
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Allocation Type | Multi-year Fund |
Review Section |
0901:Oncology and related fields
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Research Institution | The University of Tokyo |
Principal Investigator |
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Project Period (FY) |
2020-09-11 – 2022-03-31
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Keywords | 直腸癌 / BMPシグナル / 化学放射線療法 |
Outline of Final Research Achievements |
BMP signaling has reported to be activated in colorectal cancer. Whether this activated BMP signaling influenced on the radiosensitivity of colorectal cancer has not been elucidated. In this study, we firstly showed that, in vitro, BMP inhibitor, LDN193189, slightly enhanced the growth inhibition caused by radiotherapy in colorectal cancer. Furthermore, LDN193189 induced apoptosis of colorectal cancer cells with upregulation of BH3-only protein, Bim, which has reported to be related to radiosensitivity.
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Free Research Field |
外科学、大腸肛門病学
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Academic Significance and Societal Importance of the Research Achievements |
現在罹患率・死亡率共に上昇している直腸癌に対しては、術前放射線化学療法(Chemoradiotherapy:CRT)が施行されるようになってきている。しかし、大腸癌の放射線耐性獲得のメカニズムや、放射線感受性を予測する因子については明らかとなっていない。本研究の成果により将来的に、大腸癌におけるBMPシグナルを調べることで直腸癌治療におけるCRTの効果予測が可能になると共に、BMP阻害剤の臨床応用への可能性が高まると考えられる。
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