In addition to tumor cells, CYP epoxygenases are also expressed in the tumor stroma.
Recently, it has been shown that HepG2 cells can be co-transduced with multiple CYPs (Tolosa et al. 2011b).
Multiple copies of CYPs in individuals indicates that they are primary and multifunctional enzymes and are related to essential metabolism in the life-cycle.
(1203) The pregnane X receptor, exhibiting a broad substrate specificity, is involved in transcriptional regulation of PGP and multiple CYPs.
However, more work needs to be done on complex interactions involving multiple CYPs, some with genetic polymorphisms, and transporter processes.
Multiple CYPs have been found in genomes of various prokaryotes, but only a few have been studied in detail.
This study utilizes qPCR to quantify multiple Cyps and other eicosanoid-related gene changes in the rat hippocampus and parietal cortex at several time points after TBI.
CyPs have both positive and negative roles in cell viability; CyP-D is linked to the PT, CyP-A (cytosol) participates in the translocation of AIF (apoptosis inducing factor) to the nucleus [ 34], in caspase activation [ 23] and in protection against oxidative stress [ 35] and CyP-B (endoplasmic reticulum) suppresses apoptosis associated with oxidative stress and altered Ca2+ metabolism [ 36].
Due to its lower specificity, ritonavir also inhibits unintended multiple pathways (CYP, UGT) and transporters.
The finding of multiple overexpressed CYP families in LUF-R larvae also points for their role in the resistance of S. frugiperda to lufenuron.
