Indeed, we found that IF cycles led to alternative activation of adipose tissue macrophage indicated by elevated expression of M2 macrophage marker genes (e.g., Clec10a and Il10) in PWAT (Figure 6A), whereas expression of classical M1 macrophage marker genes was unchanged by IF.
Intragastric administration of ethanol to male Sprague Dawley rats caused significant gastric mucosal damage, which was accompanied by elevated expression of cyclooxygenase-2 (COX-2) and inducible nitric oxide synthase (iNOS) as well as transient activation of redox-sensitive transcription factors, such as NF-κB and AP-1, and mitogen-activated protein kinases (MAPKs).
The EGFR signaling class has prominent Notch pathway activation measured by elevated expression of Notch ligands, cleaved Notch receptor, and downstream target Hes1.
Secondly, our observations of morphological changes were accompanied by elevated expression of general neural markers as well as markers which are known to be active in differentiation programs towards specific neurotransmitter phenotypes.
These events have been associated with a dysregulated repair process, which is characterized by elevated expression of TGF-β and EGF and ultimately results in airway fibrosis and lung dysfunction [3].
Quorum sensing regulatory cascades are characteristically initiated by elevated expression of a regulatory unit, in this case the fsr-operon, of which the most likely consequence would be the subsequent induction of the fsr-regulon.
This inter-relationship between the macrophages and T cells can be affected by elevated expression of IL-2, which leads to loss of the suppressive effect; however, the inhibitory effects of the IL-2 can be restored by IL-12p70 supplementation.
In summary, we showed that untreated HIV-1 infection is characterized by elevated expression of CCR7 and CD62L on plasmacytoid dendritic cells, which relocate to lymph nodes, acquire an activated but immature phenotype, and express elevated amounts of IFNα before undergoing cell death.
Despite the CD4 T cell depletion and resulting immunosuppression which are hallmarks of the disease, HIV infected individuals display increased levels of immune activation as evidenced by elevated expression of markers of cell activation such as HLA-DR, CD38 and CD69 [2], [2].
This was accompanied by elevated expression of genes involved in N-glycan, glycosylaminoglycan and ganglioside degradation.
These alterations in polyamine metabolism are further confirmed by elevated expression of SMO at all stages of hyperoxia studied.
