Abstract：
:A role for cancer cell epithelial-to-mesenchymal transition (EMT) in cancer is well established. Here, we show that, in addition to cancer cell EMT, ovarian cancer cell metastasis relies on an epigenomic mesenchymal-to-epithelial transition (MET) in host mesenchymal stem cells (MSCs). These reprogrammed MSCs, termed carcinoma-associated MSCs (CA-MSCs), acquire pro-tumorigenic functions and directly bind cancer cells to serve as a metastatic driver/chaperone. Cancer cells induce this epigenomic MET characterized by enhancer-enriched DNA hypermethylation, altered chromatin accessibility, and differential histone modifications. This phenomenon appears clinically relevant, as CA-MSC MET is highly correlated with patient survival. Mechanistically, mirroring MET observed in development, MET in CA-MSCs is mediated by WT1 and EZH2. Importantly, EZH2 inhibitors, which are clinically available, significantly inhibited CA-MSC-mediated metastasis in mouse models of ovarian cancer.
journal_name
Cell Repjournal_title
Cell reportsauthors
Fan H,Atiya HI,Wang Y,Pisanic TR,Wang TH,Shih IM,Foy KK,Frisbie L,Buckanovich RJ,Chomiak AA,Tiedemann RL,Rothbart SB,Chandler C,Shen H,Coffman LGdoi
10.1016/j.celrep.2020.108473subject
Has Abstractpub_date
2020-12-08 00:00:00pages
108473issue
10issn
2211-1247pii
S2211-1247(20)31462-5journal_volume
33pub_type
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