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Spatial and Temporal Control of Murine Melanoma Initiation from Mutant Melanocyte Stem Cells
Published on: June 7, 2019
DNA sequences acting as binding sites for NM23/NDPK proteins in melanoma M14 cells
Laura Cervoni1, Lorenza Egistelli, Margherita Eufemi
1Dipartimento di Scienze Biochimiche A. Rossi Fanelli, Università di Roma La Sapienza, Italy.
Abstract:
We isolated and analyzed by chromatin immunoprecipitation (ChIP) in viable M14 cells DNA sequences bound to the antimetastatic protein nucleoside diphosphate kinase (NM23/NDPK) to shed some light on the nuclear functions of this protein and on the mechanism by which it acts in development and cancer. We assessed the presence of selected sequences from promoters of platelet-derived growth factor A (PDGF-A), c-myc, myeloperoxidase (MPO), CD11b, p53, WT1, CCR5, ING1, and NM23-H1 genes in the cross-linked complexes. Quantitative PCR (Q-PCR) showed a substantial enrichment of the correlated oncosuppressor genes p53, WT1, ING1, and NM23-H1 in the immunoprecipitated (IP) DNA. This suggests that NM23/NDPK binding is involved in the transcription regulation of these genes. These results reveal new interactions that should help us to disclose the antimetastatic mechanism of NM23.
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