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Journal Articles Genesis Year : 2003

Inducible site-specific recombination in myelinating cells


To explore the function of genes expressed by myelinating cells we have developed a model system that allows for the inducible ablation of predetermined genes in oligodendrocytes and Schwann cells. The Cre/loxP recombination system provides the opportunity to generate tissue-specific somatic mutations in mice. We have used a fusion protein between the Cre recombinase and a mutated ligand-binding domain of the human estrogen receptor (CreER(T)) to obtain inducible, site-specific recombination. CreER(T) expression was placed under the transcriptional control of the regulatory sequences of the myelin proteolipid protein (PLP) gene, which is abundantly expressed in oligodendrocytes and to a lesser extent in Schwann cells. The CreER(T) fusion protein translocated to the nucleus and mediated the recombination of a LacZ reporter transgene in myelinating cells of PLP/CreER(T) mice injected with the synthetic steroid tamoxifen. In untreated animals CreER(T) remained cytoplasmic, and there was no evidence of recombination. The PLP/ CreER(T) animals should be very useful in elucidating and distinguishing a particular gene's function in the formation and maintenance of the myelin sheath and in analyzing mature oligodendrocyte function in pathological conditions.

Dates and versions

hal-04144061 , version 1 (28-06-2023)



Nathalie Doerflinger, Wendy Macklin, Brian Popko. Inducible site-specific recombination in myelinating cells. Genesis, 2003, 35 (1), pp.63-72. ⟨10.1002/gene.10154⟩. ⟨hal-04144061⟩
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