We suggest an underlying mechanism enhancing TLR-signaling through co-localization with MHC class II in aggregated plasma membrane rafts rather than direct binding of the ligand to MHC class II.
Previous studies have observed many of these proteins in lipid rafts of other cells [12] [20]; however, our current work focuses on identifying only the most abundant proteins in lipid rafts, rather than an exhaustive catalog of this organelle because of the limitations of the MALDI-TOF technique.
Makarewich et al have demonstrated that in rat ventricular myocytes Rem-Cav localizes to plasma membrane specifically within caveolin-containing lipid rafts, rather than lipid rafts in general, and does not displace molecules normally found in caveolae.
These results suggest that Shh promotes turnover of at least a portion of ectopically expressed Ptch1 via endosomes and lysosomes, but the entry point is likely the Cav-1 positive lipid rafts rather than the conventional clathrin-coated pits.
However, pre-treatment with this inhibitor and Dynamin-knockdown experiments failed to protect endometrial stromal cells from PLO-induced cell death, supporting the concept that the effect of Dynasore is mainly related to destruction of lipid rafts rather than to inhibition of dynamin.
These results suggest that the increase in Fas protein induced after MS-275 treatment was in lipid raft microdomains rather than the non-raft regions of the cell surface.
However, downregulation of miR-146a was noticed in the raft cultures rather than the upregulation seen in cervical cancer tissues and was further confirmed by northern blotting (Fig. 5), indicating that the upregulation of miR-146a expression is cervical cancer-specific.
These data suggest that the inhibition seen with MCD is due to cholesterol extraction and lipid raft disruption, rather than a non-specific effect of MCD.
The fact that entry of some chlamydial strains is dependent on lipid rafts in general, rather than on the more specialized caveolae, was demonstrated using Fischer Rat Thyroid (FRT) cells, which do not express caveolin-1 or form caveolae.
Naturetrek encourages guests to walk, ride elephants and join raft and boat tours rather than go on long vehicle journeys.
In Spain, as the turnout went up it seemed to benefit a raft of smaller parties rather than the main left-wing opposition.
