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Phosphoinositide 3-kinase inhibitors (PI3K inhibitors) are a class of medical drugs that are mainly used to treat advanced cancers. They function by inhibiting one or more of the phosphoinositide 3-kinase (PI3K) enzymes, which are part of the PI3K/AKT/mTOR pathway. This signal pathway regulates cellular functions such as growth and survival. It ...
Class II catalyse the production of PI(3)P from PI and PI(3,4)P 2 from PI(4)P; however, little is known about their role in immune cells. PI(3,4)P 2 has, however, been shown to play a role in the invagination phase of clathrin-mediated endocytosis. [17] C2α and C2β are expressed through the body, but expression of C2γ is limited to hepatocytes.
AKT can have a number of downstream effects such as activating CREB, [2] inhibiting p27, [3] localizing FOXO in the cytoplasm, [3] activating PtdIns-3ps, [4] and activating mTOR [3] which can affect transcription of p70 or 4EBP1. [3] There are many known factors that enhance the PI3K/AKT pathway including EGF, [5] shh, [2] IGF-1, [2] insulin ...