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Kim MS, Cho HI, Yoon HJ, Ahn YH, Park EJ, Jin YH, Jang YK. JIB-04, A Small Molecule Histone Demethylase Inhibitor, Selectively Targets Colorectal Cancer Stem Cells by Inhibiting the Wnt/β-Catenin Signaling Pathway. Sci Rep 2018; 8:6611. [PMID: 29700375 PMCID: PMC5919936 DOI: 10.1038/s41598-018-24903-0] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Accepted: 04/11/2018] [Indexed: 12/16/2022] Open
Abstract
Although several epigenetic modulating drugs are suggested to target cancer stem cells (CSCs), additional identification of anti-CSC drugs is still necessary. Here we showed that JIB-04, a pan-selective inhibitor of histone demethylase(s), was identified as a small molecule that selectively target colorectal CSCs. Our data showed that JIB-04 is capable of reducing self-renewal and stemness of colorectal CSCs in three different colorectal cancer cell lines. JIB-04 significantly attenuated CSC tumorsphere formation, growth/relapse, invasion, and migration in vitro. Furthermore, JIB-04-treated colorectal cancer cells showed reduced tumorigenic activity in vivo. RNA sequencing analysis revealed that JIB-04 affected various cancer-related signaling pathways, especially Wnt/β-catenin signaling, which is crucial for the proliferation and maintenance of colorectal cancer cells. qRT-PCR and TOP/FOP flash luciferase assays showed that JIB-04 down-regulated the expression of Wnt/β-catenin-regulated target genes associated with colorectal CSC function. Overall, the effects of JIB-04 were equal to or greater than those of salinomycin, a known anti-colorectal CSC drug, despite the lower concentration of JIB-04 compared with that of salinomycin. Our results strongly suggest that JIB-04 is a promising drug candidate for colorectal cancer therapy.
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Affiliation(s)
- Min Seong Kim
- Department of Systems Biology, College of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Republic of Korea
- Initiative for Biological Function & Systems, Yonsei University, Seoul, 03722, Republic of Korea
| | - Hye In Cho
- Department of Systems Biology, College of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Republic of Korea
- Initiative for Biological Function & Systems, Yonsei University, Seoul, 03722, Republic of Korea
| | - Hee Jung Yoon
- Immunotherapeutics Branch, Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, Gyeonggi, 10408, South Korea
| | - Ye-Hyeon Ahn
- Immunotherapeutics Branch, Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, Gyeonggi, 10408, South Korea
| | - Eun Jung Park
- Immunotherapeutics Branch, Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, Gyeonggi, 10408, South Korea
| | - Yan Hua Jin
- Institute for Regenerative Medicine, Yanbian University, Yanji, 133002, China.
- Department of Cell Biology and Genetics, College of Medicine, Yanbian University, Yanji, 133002, China.
| | - Yeun Kyu Jang
- Department of Systems Biology, College of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Republic of Korea.
- Initiative for Biological Function & Systems, Yonsei University, Seoul, 03722, Republic of Korea.
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