Initially, T cells make transient contacts (stochastic scanning) with antigen-presenting DCs, and their behavior then progresses from serial interactions to formation of dynamic T cell clusters, T cell dissociation and swarming, leading ultimately to several rounds of T cell proliferation.
One explanation is that TC axons could make transient contacts preferentially onto cells which they do not already innervate, perhaps as immature synapses with slow kinetics (Kidd and Isaac 1999; Bannister et al. 2005).
Focusing on the anterior tubules, we demonstrate that tip cells make transient contacts with alary muscles at abdominal segment boundaries, moving progressively forward as convergent extension movements lengthen the tubule.
Besides these rather stable relationships, the LD may make transient contact with other organelles to supply lipids, as exemplified by a "kiss-and-run" encounter with the phagosome in the leukocyte (van Manen et al. 2005).
Zumwalt also uncovered irrefutable evidence that the US military had dispensed "Agent Orange in concentrations six to 25 times the suggested rate" and that "4.2m US soldiers could have made transient or significant contact with the herbicides because of Operation Ranch Hand".
Further, during the first minute following cell-to-surface encounter, cell images were made of transient contact spots of typically 0.4 µm diameter and a lifetime ranging from less than a second to a minute or more (Fig. 1).
However, since population-based surveys make only transient contact with the participants (that is a clinical relationship is not established or intended) and because risk is generally low, relying on the prevailing standard of health care in the areas may be appropriate.
We found that the domains show great interdomain flexibility making extensive transient interdomain contacts, consistent with the NMR data.
However, it is possible that transients actually make fewer contacts with other coyotes compared to residents, whose frequent interactions among pack-mates may provide the best opportunity for pathogen transmission.
Once released from a transient contact, integrins, tiggrin, and talin disappear from the tip cell surface, reassembling when contact is made with the next target muscle.
