Cloning of human ENC-1 and evaluation of its expression and regulation in nervous system tumors.
We recently identified and characterized a novel murine gene, ENC-1, that is expressed primarily in the nervous system and encodes an actin-binding protein. To gain insight into a potential role for ENC-1 gene in the processes of cell differentiation and malignant transformation in the human nervous system, we first cloned and characterized the human homologue of ENC-1. The human ENC-1 gene appeared to be highly expressed in adult brain and spinal cord, and in a number of cell lines derived from nervous system tumors we detected low steady-state levels of ENC-1 mRNA. We used a neuroblastoma differentiation model, the retinoic acid-induced neuronal differentiation of SMS-KCNR cells, to study the regulation of the ENC-1 gene during neural crest cell differentiation. We found that the expression of ENC-1 increased dramatically in the differentiated SMS-KCNR cells as compared to control undifferentiated cells. These results suggest that ENC-1 expression plays a role during differentiation of neural crest cells and may be down regulated in neuroblastoma tumors.[1]References
- Cloning of human ENC-1 and evaluation of its expression and regulation in nervous system tumors. Hernandez, M.C., Andres-Barquin, P.J., Holt, I., Israel, M.A. Exp. Cell Res. (1998) [Pubmed]
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