nm23 gene expression is strictly related to the state of cell growth. The level of its expression parallels the fraction of thymidine-incorporating cells (S-phase cells) in neoplastic mammary tissues and in the synchronously cycling fraction of MCF10A cells. nm23.h1 reaches a peak of expression in the S-phase, and is present at very low level during the G(0)/G(1) phase. Two strategies are used to demonstrate the direct involvement of the nm23.h1 gene in the process of cell proliferation. The first consists of transient inhibition of nm23.h1 expression by using anti-sense oligonucleotide treatment; weak inhibitory effect on cell proliferation is observed. The second strategy involves the stable inhibition of nm23.h1 expression by transfection of MCF10A cells with a plasmid vector expressing the human nm23.h1 anti-sense mRNA. The anti-sense-transfected cells show consistently slower proliferative activity than the control. (C) 1997 Wiley-Liss, Inc.
|Autori interni:||BASOLO, FULVIO|
|Autori:||Cipollini G; Berti A; Fiore L; Rainaldi G; Basolo F; Merlo G; Bevilacqua G; Caligo MA|
|Titolo:||Down-regulation of the nm23.h1 gene inhibits cell proliferation|
|Anno del prodotto:||1997|
|Digital Object Identifier (DOI):||10.1002/(SICI)1097-0215(19971009)73:2<297::AID-IJC22>3.0.CO;2-B|
|Appare nelle tipologie:||1.1 Articolo in rivista|