Hydrolysis is a mechanism for bioprecursor prodrug activation, which requires additional activation to become the active drug.
Compared to STED nanoscopy, the current approach to RESOLFT nanoscopy requires additional activation and deactivation steps before the actual fluorescence can be recorded (see Figure 1).
Our in vitro co-culture experiments showed that recruited MDSCs in the spleens of tumor-bearing mice required additional activation in the vicinity of metastasizing cancer cells, predominantly through contact-independent mechanisms.
For the opposing effects GCs exert on wake consolidation, increased noradrenergic activity hallmarking the wake state might be of particular relevance, as the enhancing effect of GCs on encoding is known to require additional noradrenergic activation (Roozendaal 2003; Roozendaal et al., 2006a, 2006b).
In A. nidulans the alternate nitrogen metabolism genes acetamidase, histidase and formamidase are under the sole control of global activator AREA and do not require additional inducers for activation [ 8, 51- 53]; this could be the case in U. maydis.
Allyl-Sn and allyl-Si esters, another widely used class of allylating reagents, require additional Lewis acid activation during the allylation step, 5 which can harm the lactone scaffold.
Such sites may never be transcriptionally active, may require additional factors to cooperate for activation through associated cis-acting sequences, or may be sites of transcriptional repression.
Thus, CD8+ T cells require additional signals for full activation and further differentiation into effector cells.
This result suggests that STAT3 is not sufficient for cell migration but that it provides for end effectors that require additional signals for either activation or full phenotypic expression.
One possiblility is that the manifestation of phenotypic traits of PB Tr1 cells are independent of STAT3 activation or require additional signals.
