Analysis of regulatory regions of the ciliary neutrophic factor gene in transgenic mice.
1995
IN order to study the regulatory regions of the human ciliary neurotrophic factor (CNTF) gene we made constructs containing sequences upstream and downstream of CNTF coding regions and the lacZ gene and analysed their expression in transgenic mice. We show that 240bp upstream of the translation start codon are sufficient for the transcription of the lacZ gene. A further 4 kb upstream sequence is required for the expression of the transgene in Schwann cells. These two upstream regions together with a 2 kb downstream fragment drive high level of expression of the lacZ gene in the sciatic nerve. Our results indicate that these three fragments contain regulatory regions able to mimic the CNTF expression pattern in the mouse peripheral nervous system.
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