Monday, October 14, 2013
OMgp MBP protein levels increased in the lesioned EH co culture
recent reports have called into question whether Akt is really a required effector of PI3K route pushed oncogenesis. More over, emerging data claim that Akt inhibitors could be of limited clinical application ALK Inhibitor in tumors pushed by mutations in PTEN. Thus, the degree to which Akt is just a expected effector of PTEN tumefaction reduction isn't clear currently. How might abrogation of cell size checkpoint control actually get neoplasia We hypothesize that the reason might be linked to the eukaryotic cell check-point that halts cell division in the level of the cell cycle until cells have reached sufficient size to split up their biomass into two daughter cells. Although in normal sized cells, this checkpoint is vigilant in preventing proliferation and cell division, in large PTENdeficient cells, this checkpoint may possibly permit cells to enter the cell cycle, contributing to increased proliferation and neoplasia.
This speculation, Skin infection nevertheless, remains experimentally untested. As well as showing that Akt is dispensable for cell size gate control, we recognized actin remodeling as a vital PTEN regulated process that's involved with regulating cell size control. These results are in line with early work of Goberdhan et al., who demonstrated that in D. melanogaster, PTEN influences cytoskeletal organization in numerous cell types. Here we have identified a physical interaction between PTEN and an actin remodeling complex that includes actin, actin, and many actin remodeling proteins, including gelsolin and EPLIN.
This finding raises yet another uncertain question: which of these proteins interacts directly with PTEN We imagine that PTEN interacts specifically with Cediranib actin and ultimately with the meats, since actin appears to be one of the most abundant protein in PTEN immunoprecipitates. Additionally, PTEN includes a domain with homology to tensin, an identified actin interacting protein. A conclusive response to this question will require the ability to recapitulate the interactions with purified elements, and these efforts are ongoing within our laboratory. The actin remodeling complex and this recently discovered connection between PTEN is reminiscent of the current work of van Diepen et al., who demonstrated that PTEN interacts with myosin V in neurons. These researchers further showed that this interaction is important for the ability of PTEN to control the size of these neurons. While we did not particularly identify being a PTEN interacting protein myosin V in our research, we speculate that omission arrives to cell-type specific differences in the expression pattern of the myosin V gene. Determination of whether myosin V is a part of a larger actin containing complex in the neurons utilized in this study is going to be interesting.
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