We have shown earlier that differentiation of ES cells allows formation of lymphatic endothelial precursors that express lower levels of CD31, which can be identified by virtue of expression of lymphatic markers such as LYVE1 (Kreuger et al, 2006).
FAPs are non-myogenic, interstitial, mesenchymal progenitors that can be isolated by virtue of the absence of SC surface markers and by the expression of platelet-derived growth factor receptor alpha (PDGFR α)+ or stem cell antigen 1 (Sca1)+.
Nevertheless, one speech act can be performed by virtue of the performance of another one.
These cells can be isolated by virtue of their expression of the cell surface markers epithelial-specific antigen (ESA) and CD44 and the absence of expression of CD24.
If research can be delivered by virtue of care being provided and of course with the consent of the patient then the NHS can lead the world in this area.
However, it is important to note that the NZ exists and actually only can be defined by virtue of the characteristic S-shape of the load-deflection curve.
In the cell, ROS levels can be sensed by virtue of stimulatory and inhibitory oxidative modification of cysteine residues within proteins that control various signaling cascades.
The 'danger theory' of eukaryotic immunity proposes that in addition to the foreign substances that they introduce, threats can be sensed by virtue of cellular damage and ensuing mislocalization of host factors (Matzinger, 1994; Kono and Rock, 2008).
Migration of mature melanocytes can be imaged by virtue of their inherent pigmentation and we estimated their migration speed to be around 0.01 μm/minute.
As we saw already in the first section, algebraic topology attaches to a good topological space homology groups (H_i (X, R)), which are covariantly functorial, a cohomology algebra (H^* (X, R)) which is contravariantly functorial, and these groups can be calculated, by virtue of the Mayer Vietoris exact sequence and of excision (see any textbook), by chopping the space in smaller pieces.
