Figure 1 also shows that Pb-TCMC-trastuzumab therapy results in the phosphorylation of MKK6 (p38kinactivatorandr) anotnot MKK4 (JNK kinase activator), suggesting that activation of p73 induced by Pb-TCMC-trastuzumab may be mediated by p38 kinase signaling.
In some cases, the response of GABA is rapid, often within seconds [ 51, 52], suggesting that activation of cytosolic GAD activity by Ca2+/CaM is probably involved.
In agreement with this finding, the membrane and endosomal localization of Alsin is reciprocally regulated by activated Rac1, suggesting that activation of Rac1 may be a signaling event prior to that of Rab5 [ 125, 126].
In breast cancer, Notch signalling is activated after radiation, suggesting that activation of this oncogenic pathway is a mechanism of radiation resistance (Phillips et al, 2006).
Promoter analysis revealed the activation of GLI-1 promoter activity in RANKL-overexpressing cells, suggesting that activation of GLI-1 is due to RANKL.
However, vps36 mutant discs display a very robust neoplastic phenotype, but do not activate the Notch signaling pathway significantly, suggesting that activation of Notch is not required for neoplastic growth in vps36 mutant discs.
NFκB1 and TNF pathways were activated in both AKs and SCCs, suggesting that activation of these pathways is an early event in the development of AK and SCC.
In the above experiments we found that the LY294002 inhibitor could suppress focus formation by 14-3-3γ 14-3-3γ 14-3-3γ activation of PI3K suggestingwas importhat for 14-3-3γ-mediactivationenic activity.
βG activity may decrease with age (Traurig, 1976), suggesting that activation of 9ACG by endogenous βG may be responsible for prodrug toxicity in young mice.
Furthermore, kinase activity was cooperative with respect to DNA concentration, suggesting that activation of the kinase occurs only after DNA synapsis.
Finally, a position-effect mechanism has been proposed, suggesting that activation of pericentromeric satellite repeats could counteract the repressive nature of heterochromatin and activate genes located nearby in cis or in trans.
