Mouse cGAS-KO Reporter RAW 264.7 Cells

cGAS Knockout IRF-Inducible Lucia luciferase reporter mouse macrophages

RAW-Lucia™ ISG-KO-cGAS cells were generated from the RAW-Lucia™ ISG cell line, which is derived from the murine RAW 264.7 macrophage cell line, through the stable knockout of the cGAS gene.
RAW-Lucia™ ISG-KO-cGAS cells express a secreted reporter gene, Lucia luciferase, under the control of the I-ISG54 promoter which is comprised of the IFN-inducible ISG54 promoter enhanced by a multimeric ISRE.

RAW 264.7 have been reported to express several CDSs, including cGAS [1]. RAW-Lucia™ ISG-KO-cGAS cells allow the monitoring of IRF activation by determining the activity of Lucia luciferase. The levels of IRF-induced Lucia in the cell culture supernatant can be easily monitored using QUANTI-Luc™ 4 Lucia/Gaussia, a Lucia and Gaussia luciferase detection reagent.

RAW-Lucia™ ISG-KO-cGAS cells respond to interferons (e.g. IFN-α and IFN-β), cyclic dinucelotides (e.g. 2'3'-cGAMP and c-di-GMP) and transfected poly(I:C). However, as expected, they respond very poorly to transfected DNA, such as poly(dA:dT)/LyoVec and VACV70/LyoVec.

RAW-Lucia™ ISG-KO-cGAS cells are resistant to Zeocin®.

Reference:

1. Lam E. et al., 2014. Adenovirus Detection by the cGAS/STING/TBK1 DNA Sensing Cascade. J Virol. 88(2):974-81.