Controling cancer development by reprogramming technique
Project/Area Number |
26460468
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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 |
Research Field |
Experimental pathology
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Research Institution | Tohoku University |
Principal Investigator |
Horii Akira 東北大学, 医学系研究科, 教授 (40249983)
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Project Period (FY) |
2014-04-01 – 2017-03-31
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Project Status |
Completed (Fiscal Year 2016)
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Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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Keywords | 膵がん / がん幹細胞 / リプログラミング / 増殖抑制 / EMT / 薬剤耐性 / 細胞遊走能 / 増殖制御 / がん |
Outline of Final Research Achievements |
Reprogramming mediated control of pancreatic cancer cell lines were attempted in this study. Four Yamanaka factors were introduced into pancreatic cancer cell lines PK-8 and PK-9 as well as their derived gemcitabine (GEM herein after) resistant cell lines RPK-8 and RPK-9. Lentivirus vector was first used but results were not successful. We next tried TET-vector but results were not successful. However, we observed some unexpected interesting findings. GEM resistance in RPK-9 is caused by homozygous deletion of DCK that is essential for activation of GEM. Hence, RPK-9 can survive under very high concentration of GEM. On the other hand, RPK-8 can survive under low concentration of GEM but cannot survive under very high concentration. Furthermore, upregulation of genes associated with stemness and EMT were evident in RPK-8. Cell motility was also upregulated. These results may suggest that stemness associated with EMT is playing an important role in acquisition of GEM in RPK-8.
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Report
(4 results)
Research Products
(32 results)
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[Journal Article] NDRG2, suppressed expression associates with poor prognosis in pancreatic cancer, is hypermethylated in the second promoter in human gastrointestinal cancers.2017
Author(s)
Yamamura A, Miura K, Karasawa H, Motoi F, Mizuguchi Y, Saiki Y, Fukushige S, Sunamura M, Shibata C, Unno M, Horii A.
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Journal Title
Biochem Biophys Res Commun
Volume: 484
Issue: 1
Pages: 138-143
DOI
Related Report
Peer Reviewed / Open Access / Acknowledgement Compliant
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[Journal Article] Acquisition of chemoresistance to gemcitabine is induced by a loss-of-function missense mutation of DCK.2015
Author(s)
Nakano T, Saiki Y, Kudo C, Hirayama A, Mizuguchi Y, Fujiwara S, Soga T, Sunamura M, Matsumura N, Motoi F, Unno M, Horii A.
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Journal Title
Biochem Biophys Res Commun
Volume: 464
Issue: 4
Pages: 1084-1089
DOI
Related Report
Peer Reviewed / Acknowledgement Compliant
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[Journal Article] Clinicopathological study of SDHB mutation-related pheochromocytoma and sympathetic paraganglioma.2014
Author(s)
Kimura N, Takekoshi K, Horii A, Morimoto R, Imai T, Oki T, Saito T, Midorikawa S, Arao T, Sugisawa C, Yamada M, Otuka Y, Kurihara I, Sugano K, Nakane M, Fukuuchi A, Kitamoto T, Saitoh J, Nishikawa T, Naruse M.
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Journal Title
Endocr Relat Cancer
Volume: 21
Issue: 3
Pages: L13-L16
DOI
Related Report
Peer Reviewed
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[Journal Article] Diversity of microflora in colonic mucus from severe ulcerative colitis patients analyzed by terminal restriction fragment length polymorphism and clone libraries of bacterial 16S rRNA gene sequences.2014
Author(s)
Huang IN, Sato Y, Sakamoto M, Ohkuma M, Ohnuma S, Naitoh T, Shibata C, Horii A, Nishimura J, Kitazawa H, Saito T
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Journal Title
Adv Microbiol
Volume: 4
Issue: 13
Pages: 857-870
DOI
Related Report
Peer Reviewed
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[Presentation] Clinical Utility of Patient Derived Xenografts to Determine Biomarkers of Prognosis and Map Resistance Pathways in EGFR-Mutant Lung Adenocarcinoma2015
Author(s)
Kota Ishizawa, Erin L. Stewart, Celine Mascaux, Shingo Sakashita, Jenna Sykes, Ghassan Allo, Chang-Qi Zhu, Ming Li, Melania Pintilie, Igor Jurisica, Benjamin G. Neel, Ming-Sound Tsao, Akira Horii
Organizer
日本癌学会
Place of Presentation
名古屋国際会議場(名古屋)
Year and Date
2015-10-08
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