In contrast , an adenovirus-derived vector strongly activated NF-kappaB and different transcripts such as those of ICAM-1 , IL-8 , RANTES , IP-10 , TNF-alpha , IL-6 , IL-1 beta.
The increases in mRNAs for IL-8 and IL-6 were abrogated by addition of NF-kappaB and MAP kinase inhibitors , suggesting that the upregulation of IL-8 and IL-6 is mediated through NF-kappaB and MAP kinase signaling pathways.
Here we have investigated the mechanism by which ADP-ribosylation inhibitors block signaling pathways induced in macrophages.
Therefore , the possibility that ADP-ribosylation may regulate the phosphorylation of histones phosphorylation in nuclei warrants further investigation.