The augmented cell extravasation caused by sensitization to vector feeding, whilst potentially damaging to bacteria or parasites, transports cells that are decidedly susceptible to WNV infection.
Consequently, transient transfection of the low aggressive phenotype and low-level expression of ACSL4 cell line, MCF-7, with the full length human ACSL4 cDNA resulted in increased aggressiveness of the cells manifested as augmented cell proliferation, invasion and migration.
Augmented cell adhesion was maintained by cells transfected with point mutated, inactive heparanase, or in the presence of laminaran sulfate, an inhibitor of heparanase enzymatic activity [27], arguing for enzymatic-independent function.
Collectively the changes in phenotype observed in A431-hDsg3 mycellsls, i.e. increased phosphorylation of E-cadherin-catenin complexes, pronounced membrane protrusions and augmented cell motility, are consistent with the possibility that Dsg3 is associated with Src activation [44], [45].
Moreover, we uncovered an unexpected functional link between Sema3E/Plexin-D1 signandng and epithelial-to-mesenchymal transition, and provided a mechanistic explanation for the augmented cell motility conferred by Sema3E from high-grade tumors.
In the Coro-1A−/− mice, the residual T cells show signs of increased activation when compared to WT total T cells [i.e., increased percentages of effector/memory (CD62Llo/CD44+) cells and of CD69+, CD24+ or CD25+ cells], and augmented cell-death (i.e., annexin-V+ staining) (Figure S4B).
These findings correlate with augmented cell apoptosis in MTX-animals compared to control rats.
We therefore tested whether, in addition to increased proximal signalling, THEMIS deficiency also resulted in augmented cell death.
These results suggested that downregulation of NDUFB6 is not implicated in invasion or migration, but implicated in augmented cell proliferation.
Increased TCR-proximal signalling, as a consequence of THEMIS KD, should potentially result in augmented cell surface activation markers.
