A different series of experiments proved that insulin did stimulate P70 S6K Thr389 phosphorylation, showing that this hormone does trigger TORC1. Moreover, rapamycin caused full dephosphorylation of P70 S6K Thr389 in natural product libraries hormone deprived and insulin stimulated cells, indicating this substance totally inactivates TORC1. Our data, on the other hand with those presented by Hong et al., therefore give no evidence to support the theory that TORC1 is included in the control of SGK1 activity and it is therefore interesting that recently published data suggest that the apparent rapamycin painful and sensitive phosphorylation of SGK1 Ser422 reported by Hong et al. was really an artefact due to the wrong use of poorly selective antibodies. Physical basis of insulin induced Na absorption insulin also triggers PI3K dependent activation of PKB, Some evidence suggests that insulin induced Na transport reflects PI3K/SGK1 mediated inhibition of Nedd 4/2. Indeed, it’s the activation of PKB that enables insulin to increase Cellular differentiation glucose uptake by causing the translocation of the type 4 glucose transporter to the plasma membrane. It’s therefore interesting that studies of Fisher rat thyroid cells heterologously expressing g ENaC, t and a have suggested that PKB might donate to the control of GNa by catalyzing the phosphorylation of Nedd 4/2. However, despite this seemingly obvious result, studies of A6 cells heterologously showing wildtype and mutant types of SGK1 and PKB reveal that PKB isn’t involved in the hormonal get a grip on of Na absorption. In a effort to solve this apparent contradiction, we also explored the effects of GSK650394A and Akti 1/2, as these substances have, respectively, been reported to inhibit PKB and SGK1 precisely. GSK650394A had a somewhat small effect on Na transport in cells and caused JZL184 clinical trial focus dependent inhibition of the response to insulin with essentially complete block at 10 mM. Explanations of extracted proteins showed that GSK650394A triggered dephosphorylation of NDRG1 Thr346/356/366 in both hormone unhappy and insulin stimulated cells and this effect was also basically complete at 10 mM. The best levels of GSK650394A tested did appear to cause some inhibition of insulininduced PKB Ser473 phosphorylation, which raised the possibility that GSK650394A could also cause some inhibition of PI3K. Nevertheless, GSK650394A had no impact on the phosphorylation of PRAS40 Ser246, even at 10 mM, and it’s therefore clear that this element does not block the insulin induced phosphorylation of PKB substrates. Logie et al, while this might appear surprising because of the inhibition of PKBSer473 phosphorylation. Show that there is considerable extra volume in the PKB dependent signalling pathway.