To determine whether these two conflicting pathways co-exist and interferes with each other, we examined TNFα-induced NF-κB activation and the effects of blocking NF-κB activation on TRAIL-induced apoptosis in human colon carcinoma cell line SW480.
Taken together our results demonstrate that (i) the stabilities of BRCA1/BARD1 complexes are regulated in a mutagen-specific manner, and (ii) indicate the existence of mechanisms that may be required to prevent the simultaneous recruitment of conflicting signaling pathways to sites of DNA damage.
Although the sequential treatments showed antagonistic effects, this is not the first time a sequential treatment with an HDACI has been found to be antagonistic, which was found to be due to conflicting signalling pathways (Kuefer et al, 2007).
Substrate affinities and enzymatic rates may be enhanced by chemical modifications and cooperation with other repair factors that signal damage sites, or alternatively be repressed by competing enzymes in the case of overlapping, branching or conflicting repair pathways.
Next, we describe several case studies illustrating the potential of the C2Cards in identifying conflicts between pathway databases.
C2Cards can contribute to ongoing reconciliation efforts by simplifying the identification of consensus and conflicts between pathway databases and lowering the threshold for experts to contribute.
C2Cards can contribute to this endeavor by simplifying the identification of consensus and conflicts between pathway databases and lowering the threshold for experts to contribute.
This raises fundamental challenges for planning practice, which are explored here through a discussion of situational dissensus, conflicting rationalities, and pathways for democratic institutional innovation.
It may also reveal possible alternative substrates, which is one of the sources of conflict between metabolic pathway databases [ 4].
Given the amount of possible challenges a plant face from their environment, plants need to activate and prioritize between potentially conflicting defense signaling pathways.
