Secretion of this cytokine is often preceded by increased cell-surface expression of IL-2R (Treiber-Held et al., 1996), which can occur due to increased IL-2 and IL-15 signalling, two cytokines present at the maternal fetal interface (Verma et al., 2000; Scaife et al., 2006).
These photoreceptor cells can be one of two types, identified by different ways of increasing cell surface area.
This was manifest by both increased cell surface receptor numbers, increased mRNA levels, increase in signaling through NF-κB activity, and increased levels of IL-1, IL-8, IL-6 and sTNFR1.
We found that ApoEr2 significantly decreased cell surface GluA1 by 65% (Fig 7A, B), but significantly increased cell surface of GluA2 by 43% (Fig 7C, D).
Taken all our experiences together, we conclude that if the plasma treatment is long enough (e.g., 300 s), intracellular ROS is enhanced, and it comes to a breakdown of the mitochondrial membrane potential as early sign of apoptosis and to DNA damage [ 28], followed either by cell death or an increased cell surface expression of several integrins on surviving cells.
K44A expression robustly increased cell surface staining by SCi1 and HA-antibody staining (Fig. 1c).
These interactions are likely related to a physiological response facilitated by nerve growth factor (NGF) that increases cell surface expression of TRPV1 (Zhang et al., 2005; Stein et al., 2006).
The inclusion of the general protein synthesis inhibitor cycloheximide did not affect the overall pattern or profile of cicaprost-induced internalization by the hIP, confirming that the increased cell surface expression observed at 4 h was due to receptor recycling or trafficking from intracellular pools and not due to de novo protein synthesis (data not shown).
The presence of proteins such as complement component 3 and IgG further enhanced the adjuvant properties of these vaccine carriers by inducing DC maturation (i.e. increased cell surface molecule expression and cytokine secretion) in a chemistry-dependent manner.
