They also express T
cell activation markers, even (and to a great extent) in germ free mice, hence they appear to develop to become a natural memory cell population based on some type of internal antigen (s).
For example, one could stain for cellular markers and
activation markers to infer the activity status of T lymphocytes
The Einstein team also observed a three-fold increase in
the activation marker CD69 in the human CD3 -, CD16 +, CD56 + NK cells harvested from the spleens of the IL - 15 superagonist - treated mice, suggesting that activated NK cells controlled the acute HIV infection.
Users wearing the device can look at an «
activation marker» — a black - and - white - patterned physical box — which will trigger the iPhone to simulate the presence of the new 2015 Land Rover Discovery Sport.