The homing pathway is dependent on the homing endonuclease recognition of the target site and on the allelic homology of the surrounding sequences.
The lack of mesoderm, indeed, had an effect on homing.
This data suggests that EPC homing is an active process involving direct interaction between molecular targets expressed on homing tissues and adhesion molecules, namely integrins, expressed by EPCs.
Next, we saw transcriptional co-activator and tyrosine phosphatase, Eya, to exhibit an effect on homing.
Notwithstanding this debate, their efficacy has nevertheless been assumed to be dependent on cell homing to sites of injury [18].
We propose that early microenvironment changes that follow the occlusion of the MCA could explain this phenomenon, and speculate that the beneficial effect of NCs in focal brain ischemia is not strictly dependent on their homing into the ischemic region.
These findings strongly suggest that the potential beneficial effect of NCs in experimental focal brain ischemia is not strictly dependent on their homing into the ischemic region, but rather through a bystander mechanism possibly mediated by the release of neuroprotective factors in the peri-infarct region.
Free-standing HE genes are found in intergenic regions, their survival is dependent on the homing cycle [ 23, 24] and they might be more easily eliminated as compared to HE associated with self-splicing elements since their removal does not need to be precise.
Full time compensation would provide a more general compass still, but an additional degree of informational complexity is needed to achieve this generality: not only is the appropriate flight angle to the sun dependent on where the animal is homing from, it now also needs to be adjusted in relation to the time of day.
Although these cells have been lodged through portal flow and developed through the metastatic cascade at an earlier point, the current mechanism would probably be more dependent on chemokines and other factors of homing.
