Antisense inhibition of single copy N-myc expression results in decreased cell growth without reduction of c-myc protein in a neuroepithelioma cell line.
1990
Abstract The N- myc gene is transiently expressed during normal embryonic development and abnormally expressed in several tumors of neuroendocrine origin. Little is known of the function of the N- myc gene product in either normal or neoplastic tissue. We utilized synthetic antisense oligodeoxynucleotides to specifically inhibit N- myc gene expression in the neuroepithelioma cell line CHP100. These cells contain single copy N- myc alleles but overexpress c- myc . N- myc antisense oligomer treatment was found to be growth inhibitory without affecting levels of c- myc protein. N- myc antisense oligomer-treated cells also lost the characteristic cellular heterogeneity displayed by CHP100 in vitro .
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