We also showed that SNTA1 and P66shc form a complex with Grb2 to activate Rac1; in this complex, SNTA1 acts as a signalling amplifier for Rac1 activation, resulting in an increase in ROS levels, cell proliferation and migration in breast cancer cells.
It is conceivable that the use of ECMO could have been a trigger or an amplifier of cytokine activation [ 34].
Intriguingly, the β-subunit of the FcεRI, which has been carefully described by Kinet and colleagues as the amplifier of FcεRI-mediated activation signals [ 25, 49], has been found by different laboratories to be most highly tyrosine-phosphorylated in response to high Ag concentrations [ 27, 50, 51].
We describe a genetically encoded anti-inflammatory mammalian cell device based on a modular engineered genetic circuit comprising a sensor, an amplifier, a "thresholder" to restrict activation of a positive-feedback loop, a combination of advanced clinically used biopharmaceutical proteins, and orthogonal regulatory elements that linked modules into the functional device.
Activation of the inflammation amplifier is associated with many human diseases and disorders such as autoimmune and neurodegenerative diseases including MS (Murakami et al., 2013; Atsumi et al., 2014).
DOI: http://dx.doi.org/10.7554/eLife.08733.015 Because activated pathogenic CD4+ T cells express various cytokines including NFkB and STAT stimulators like IL-17 and IL-6, we considered whether chemokines were induced in the L5 ventral vessels via activation of the inflammation amplifier, a local chemokine inducer in endothelial cells.
Gateways for pathogenic CD4+ T cells in an EAE model have been established by activation of the inflammation amplifier via an anti-gravity-mediated regional neural signal in the fifth lumbar cord (L5) (Arima et al., 2012; Mori et al., 2014).
Thus, rather than the primary effector of tissue destruction, macrophages may act as an amplifier of the pathogenetic cascade, especially via activation of fibroblasts by molecules such as IL-1 and tumor necrosis factor (TNF -alpha.
The electrical activity resulting from the activation of the rectus femoris, tibialis anterior and soleus muscles will be collected using an eight-channel electromyograph (FREEEMG® – BTS Engineering), containing a bioelectric signal amplifier, wireless data transmission and bipolar electrodes with a total gain of 2000 and 20 450 Hz sampling frequency.
