To date, cellular adaptive responses and gene expression associated with PCM remain poorly understood.
As a consequence of this increased oxidative status a cellular adaptive response occurs requiring functional chaperones, antioxidant production and protein degradation.
Hypoxia-inducible factor (HIF) is a main heterodimeric transcription factor that regulates the cellular adaptive response to hypoxia by stimulating the transcription of a series of hypoxia-inducible genes.
In the cellular adaptive responses of salt-tolerant plants, a major factor of salt tolerance mechanisms is not only acceleration of ROS scavenging systems (Chinnusamy et al., 2005), but also the ability of plant cells to adjust osmotically and to accumulate organic solutes known as compatible solutes.
Combined analyses of these multiple levels of investigation revealed a complex cellular adaptive response to the protracted peroxide exposure.
Autophagy represents a cellular adaptive mechanism that promotes survival under various stress conditions including nutrient deprivation [16] [17].
As a cellular adaptive response to ER stress, unfolded protein response (UPR) activates molecules for the quality control of ER proteins.
Consequently, a cellular adaptive response, named unfolded protein response (UPR), is activated to diminish this stress via unfolded protein degradation, stimulation of protein folding, down-regulation of protein synthesis or apoptosis induction [78], [79].
We feel that it is important to fully comprehend the cellular adaptive responses during the early effects of oxidative insults, as it is likely that therapeutics will be most efficacious at this time (i.e. before widespread neuronal cell death).
Though primary PLV infection did not elicit antibody or cellular adaptive responses that provided protection to FIVC infection, of importance, CD4 cell depletion was abrogated in dual, but not single, FIVC infection [3], [11].
In such a scenario, the increment or de novo appearance of cellular adaptive immune responses against HIV Env or to recall antigens suggests that restoration of key immune parameters takes place upon Tat immunization.
