We assumed that the members of the first cohort were actively migrating juveniles destined for a subyearling migration based on the observation that nearly all PIT-tagged fish detected early the migration season and later observed as an adult are subyearling migrants (W. Connor, unpublished data).
Data indicating that a significantly higher proportion of Foxp3+ cells express CD49d in cancer patients compared to healthy controls support this finding as CD49d expression implies that the cells are actively migrating to a site of immune activity.
When interneurons are actively migrating, ambient GABA and glutamate initially stimulate the motility through activation of GABAA and AMPA/NMDA receptors.
A simple decay model for the co-occurrence of meteoric 10Be and illuviated clay in cores of ice-cemented glacial sediments indicates that the clays were actively migrating down from the surface in a warm climate until the system froze between 6 and 9 Ma.
While the long-tail of Pages are actively migrating to Timeline, Facebook's most popular Pages have been conservative with their adoption.
In most cases, centrosome irradiated cells migrated at a sufficiently slower rate than the control non-irradiated cells which were actively migrating towards the open wound area, as is typical in this wound-healing model.
One such transcription factor is the LIM homeodomain transcription factor Lh×6. MGE-derived interneurons that are actively migrating to the cerebral cortex express Lhx6 [ 143, 181].
Interestingly, proper Lh×6 functioning is required for maintenance of So×6 expression in neurons that are actively migrating toward the cortex, but not in MGE-derived interneuronal progenitors [ 98, 108].
As Reelin is expressed in the developing hilar region adjacent to the CA3 area when EphB1/EphB2-expressing neural precursors are actively migrating to the same hippocampal location, it seems plausible that the lack of Reelin-mediated EphB forward signaling results in the specific CA3 migration abnormalities observed in EphB1/2-deficient mice.
As described in the methods section, we track the movement of the nuclear region of the cell over time, and small oscillations in the position of the nucleus in non-migrating cells with active membranes, coupled with error associated with manual rendering of the nuclear position can result in calculation of low speeds for cells that are not actively migrating.
Instead, the population associated with APC is prominent in actively migrating cells, implying that it has an active role in cell migration.
