Biology Reference
In-Depth Information
Table 5.3 ( Continued )
Name
Description
Advantages
Disadvantages
References
Dunn
Provides a measure of the migration
Offers the best means to view the cells
The assessment of
[67,69,70]
chemotaxis
characteristics of populations of
during the chemotaxis assay: a glass
the number of
chamber
cells. Like the Boyden and Zigmund
slide is used, enabling microscopy, and
migrating cells is
microchambers, a gradient is formed
the wells are cut precisely into the glass
laborious and
by a chemoattractant diffusing
slide, ensuring better transmission
subjective.
between two compartments. In this
properties for many different types of
High-throughput
design, however, the wells are
light microscopy.
chemotaxis assays
arranged in a concentric layout.
The use of a concentric layout maximizes
have not yet been
Additionally, the wells are precisely
the stability of the chemokine gradient;
developed.
cut into a glass slide, which
the edge effects associated with the
enables better transmission
Boyden chamber and the linear bridge
properties for light microscopy.
in the Zigmund chamber are avoided.
Flow cytometry
Allows large numbers of cells to be
Highly sensitive and quantitative,
Severely limited in
[71]
analyzed rapidly and automatically
i.e., capable of precise, discrete
its ability to handle
for physiological characteristics.
measurements of fluorescent signals.
multiple discrete
Cells are stained with fluorescent
Enables the simultaneous quantitative
samples of cells,
dyes, suspended in solution,
analysis of multiple optical markers.
though recent
and passed in a stream before a
variations of flow
laser or other light source. The
cytometry, including
subsequent measurements that
plug flow cytometry,
categorize the cells are based on
have attempted to
how the light-sensitive dye reacts
solve this problem.
to the light source. This technique
Informatic systems,
offers real-time, quantitative
i.e., tools for accurately
measurements of characteristics
tracking data, have yet
 
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