CBB1003, a lysine-specific demethylase 1 inhibitor, suppresses colorectal cancer cells growth through down-regulation of leucine-rich repeat-containing G-protein-coupled receptor 5 expression.
Abstract | PURPOSE: METHODS: RESULTS: LSD1 expression was significantly elevated in colorectal tumor tissues compared with adjacent adenoma and normal colorectal tissues (P < 0.001), and LSD1 levels were significantly correlated with an advanced AJCC T stage (P = 0.012) and distant metastasis (P = 0.004). CBB1003 inhibited CRC cell proliferation and colony formation. In cultured CRC cells, inhibiting LSD1 activity by CBB1003 caused a decrease in LGR5 levels while overexpression of LGR5 reduced CBB1003-induced cell death. We also observed the inactivation of β- catenin/TCF signaling after CBB1003 treatment, consistent with the positive correlations among LSD1, LGR5, β- catenin and c-Myc expression in human colon tumor and adenoma tissues. CONCLUSION: Our result suggested that LSD1 overexpression promotes CRC development and that the LSD1 inhibitor inhibits CRC cell growth by down-regulating LGR5 levels and inactivates the Wnt/β- catenin pathway. Thus, LSD1 and its inhibitor might provide a new target or a useful strategy for therapy of CRC.
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Authors | Hung-Chih Hsu, Yi-Shiuan Liu, Kai-Chi Tseng, Tsai-Sheng Yang, Chien-Yuh Yeh, Jeng-Fu You, Hsin-Yuan Hung, Shu-Jen Chen, Hua-Chien Chen |
Journal | Journal of cancer research and clinical oncology
(J Cancer Res Clin Oncol)
Vol. 141
Issue 1
Pg. 11-21
(Jan 2015)
ISSN: 1432-1335 [Electronic] Germany |
PMID | 25060070
(Publication Type: Comparative Study, Journal Article, Research Support, Non-U.S. Gov't)
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Chemical References |
- Amidines
- CBB1003
- Enzyme Inhibitors
- LGR5 protein, human
- Piperazines
- RNA, Messenger
- RNA, Small Interfering
- Receptors, G-Protein-Coupled
- Histone Demethylases
- KDM1A protein, human
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Topics |
- Adenoma
(drug therapy, metabolism, pathology)
- Adult
- Aged
- Aged, 80 and over
- Amidines
(pharmacology)
- Apoptosis
(drug effects)
- Blotting, Western
- Cell Cycle
(drug effects)
- Cell Proliferation
(drug effects)
- Colon
(drug effects, metabolism, pathology)
- Colorectal Neoplasms
(drug therapy, metabolism, pathology)
- Enzyme Inhibitors
(pharmacology)
- Female
- Gene Expression Regulation, Neoplastic
(drug effects)
- Histone Demethylases
(antagonists & inhibitors, genetics, metabolism)
- Humans
- Immunoenzyme Techniques
- Male
- Middle Aged
- Neoplasm Staging
- Piperazines
(pharmacology)
- RNA, Messenger
(genetics)
- RNA, Small Interfering
(genetics)
- Real-Time Polymerase Chain Reaction
- Receptors, G-Protein-Coupled
(genetics, metabolism)
- Rectum
(drug effects, metabolism, pathology)
- Reverse Transcriptase Polymerase Chain Reaction
- Tumor Cells, Cultured
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