Real-time analysis of rhythmic gene expression in immortalized suprachiasmatic nucleus cells. Academic Article uri icon


  • Immortalized cells derived from the suprachiasmatic nucleus (SCN) retain many properties of the SCN including the capacity to generate circadian rhythms. Stably transfected SCN2.2 cells expressing the human c- promoter linked to a luciferase reporter gene ( /luc) were examined for evidence of transgene responses to stimuli known to induce c- expression and of endogenous rhythmic variation. Bioluminescence-reported transgene expression was induced in SCN2.2 /luc cells following stimulation with fetal bovine serum or KCl. SCN2.2 /luc cells showed 24 h rhythms of bioluminescence with a 9- to 19-fold difference between peak and minimum levels. These results demonstrate that the regulation of /luc transgene expression in SCN2.2 cells is similar to that of the endogenous c- gene in the SCN.

published proceedings

  • Neuroreport

author list (cited authors)

  • Allen, G. C., & Earnest, D. J.

citation count

  • 4

complete list of authors

  • Allen, Gregg C||Earnest, David J

publication date

  • January 2002