First Author | Wu Z | Year | 2015 |
Journal | Cell Stem Cell | Volume | 17 |
Issue | 1 | Pages | 47-59 |
PubMed ID | 26140605 | Mgi Jnum | J:224848 |
Mgi Id | MGI:5689203 | Doi | 10.1016/j.stem.2015.05.016 |
Citation | Wu Z, et al. (2015) TPO-Induced Metabolic Reprogramming Drives Liver Metastasis of Colorectal Cancer CD110+ Tumor-Initiating Cells. Cell Stem Cell 17(1):47-59 |
abstractText | Liver metastasis is a leading cause of death in patients with colorectal cancer. We previously found that colorectal cancer tumor-initiating cells (TICs) expressing CD110, the thrombopoietin (TPO)-binding receptor, mediate liver metastasis. Here, we show that TPO promotes metastasis of CD110+ TICs to the liver by activating lysine degradation. Lysine catabolism generates acetyl-CoA, which is used in p300-dependent LRP6 acetylation. This triggers tyrosine phosphorylation of LRP6, ultimately activating Wnt signaling to promote self-renewal of CD110+ TICs. Lysine catabolism also generates glutamate, which modulates the redox status of CD110+ TICs to promote liver colonization and drug resistance. Mechanistically, TPO-mediated induction of c-myc orchestrates recruitment of chromatin modifiers to regulate metabolic gene expression. Our findings, therefore, establish TPO as a component of the physiological environment critical for metastasis of colorectal cancer to the liver. |