## Abstract Neuroblastoma, the most common extracranial solid tumor in children, arises from precursors of the sympathetic nervous system. Neuroblastoma cell lines are responsive to the differentiation agent retinoic acid, which induces its effects by altering transcription rates of specific target
Suppression of MYC by high expression of NMYC in human neuroblastoma cells
β Scribed by S. Breit; M. Schwab
- Publisher
- John Wiley and Sons
- Year
- 1989
- Tongue
- English
- Weight
- 854 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0360-4012
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β¦ Synopsis
Members of the MYC gene family, including MYC, NMYC, and LYMC, have been found amplified and expressed at high level in various human cancers. We have analysed the expression of two members of the MYC gene family, NMYC and MYC, in human and murine neuroblastoma cells. Whenever NMYC and MYC are co-expressed, MYC expression predominates. Cells carrying high expression of NMYC as result of amplification lack MYC expression. The same is true for neuroblastoma cells in which expression of a single-copy NMYC is upregulated or into which a vector forcing high expression of an exogenous NMYC had been introduced by transfection. Our studies indicate a regulatory interaction between MYC and NMYC in neuroblastoma cells.
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of Microbiology, Kyoto Prefectural University of Neuroblastoma (NB) cells can be induced to differentiate bidirectionally into either neuronal or schwannian cells by different inducers. However, the underlying mechanisms are poorly understood. We examined the expression of N-myc and c-src genes in 3
## Abstract The expression of a number of cellular oncogenes was investigated in human urothelial cell lines with different in vitro growth properties. Constitutively elevated levels of expression of cβ__myc__ RNA were found in Hu609, an immortalized, nontumorigenic cell line that was derived from