Endocytosis is a key regulatory step of diverse signalling pathways, including receptor tyrosine kinase (RTK) signalling.
LPA binds to surface GPCRs, leading to activation of diverse signalling pathways depending on the LPA receptor complement and the specific G-proteins expressed by the cell.
Since a large number of diverse signalling pathways (Etienne-Manneville, 2008; Huber et al, 2005)—including those regulating epithelial polarity (Aranda et al, 2008; Humbert et al, 2008; Tanos & Rodriguez-Boulan, 2008)—induce or contribute to EMT, respective molecular mechanisms are still ill understood.
Therefore, NADPH oxidase-mediated redox signaling may represent a unique intracellular amplifier of diverse signaling pathways involved in tissue repair processes such as cell proliferation, wound healing, angiogenesis and fibrosis.
These proinflammatory-like actions suggest that N-SMase and ceramides could produce brain-vascular damage by reperfusion injury triggering lipid peroxidation, release of reactive oxygen species and activation of diverse signaling pathways: PKCα β isozymes, MAP kinase and NF-κB.
These factors play key roles in regulating tumor cell proliferation, survival and malignancy through the activation of diverse signaling pathways, including the Smad, PI3K, Jak/Stat, NF-κB, MAPK, CXCR2 and IL-1 network (Nguyen et al., 2009; Ohanna et al., 2011; Coppé et al., 2011).
The second important finding is that peripherally administered UAG has activity in the absence of the GHSR, as indicated in pathways analyses by the modulation of diverse signaling pathways including [Ca2+]i, cAMP, "growth factors", Notch and Wnt.
The differences between these cells may be the result of a more robust activation of diverse signaling pathways activated by CXCR4 and the use of insensitive Gα chain used by CXCR4.
Cellular stresses such as hypoxia induce activation of diverse signaling pathways, which allow cells to survive in unfavorable conditions.
Thus eEF2K integrates a variety of diverse signaling pathways, and potentially may be targeted through different strategies.
This suggests that cell senescence can result from activation of diverse signaling pathways, likely to be more numerous than initially believed.
