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Salehi S, Tavabie OD, Villanueva A, Watson J, Darling D, Quaglia A, Farzaneh F, Aluvihare VR. Regeneration linked miRNA modify tumor phenotype and can enforce multi-lineage growth arrest in vivo. Sci Rep 2021; 11:10538. [PMID: 34006907 PMCID: PMC8131690 DOI: 10.1038/s41598-021-90009-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 04/20/2021] [Indexed: 01/11/2023] Open
Abstract
Regulated cell proliferation is an effector mechanism of regeneration, whilst dysregulated cell proliferation is a feature of cancer. We have previously identified microRNA (miRNA) that regulate successful and failed human liver regeneration. We hypothesized that these regulators may directly modify tumor behavior. Here we show that inhibition of miRNAs -503 and -23a, alone or in combination, enhances tumor proliferation in hepatocyte and non-hepatocyte derived cancers in vitro, driving more aggressive tumor behavior in vivo. Inhibition of miRNA-152 caused induction of DNMT1, site-specific methylation with associated changes in gene expression and in vitro and in vivo growth inhibition. Enforced changes in expression of two miRNA recapitulating changes observed in failed regeneration led to complete growth inhibition of multi-lineage cancers in vivo. Our results indicate that regulation of regeneration and tumor aggressiveness are concordant and that miRNA-based inhibitors of regeneration may constitute a novel treatment strategy for human cancers.
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Affiliation(s)
- Siamak Salehi
- Institute of Liver Studies, King's College Hospital, London, SE5 9RS, UK
| | - Oliver D Tavabie
- Institute of Liver Studies, King's College Hospital, London, SE5 9RS, UK
| | - Augusto Villanueva
- Institute of Liver Studies, King's College Hospital, London, SE5 9RS, UK
| | - Julie Watson
- MRC and Asthma UK Centre in Allergic Mechanisms of Asthma, King's College London, Guy's Hospital, London, UK
| | - David Darling
- School of Cancer & Pharmaceutical Sciences, King's College London, Molecular Medicine Group, The Rayne Institute, 123 Coldharbour Lane, London, SE5 9NU, UK
| | - Alberto Quaglia
- Institute of Liver Studies, King's College Hospital, London, SE5 9RS, UK
| | - Farzin Farzaneh
- School of Cancer & Pharmaceutical Sciences, King's College London, Molecular Medicine Group, The Rayne Institute, 123 Coldharbour Lane, London, SE5 9NU, UK
| | - Varuna R Aluvihare
- Institute of Liver Studies, King's College Hospital, London, SE5 9RS, UK.
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