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In addition
there is a Laser Scanning Cytometer (CompuCyte Corp., Cambridge,
MA) (left) that allows for laser illumination of cells stained
on slides. This system is capable of measuring 7-11 parameters per
cell at rates of several hundred cells per second and contains
several unique features: 1) Merge allows the same cell to be
measured several times (with different dyes or live and then fixed)
with all data stored in list mode for multiparameter analysis. (This
system records the position of each cell so that multiple rounds of
analysis are possible). Merge also allows the same cell to be
measured several times in quick succession for detecting enzyme
kinetics, etc; 2) Maximal Pixel measurements allows for not only
determination of the amount of fluorescence associated with each
cell but also provides information on the change in distribution of
material within the cell - maximal pixel refers to the intensity of
localized fluorescence allowing for observations of accumulation of
material in specific intracellular organelles; and Separate
thresholding for nucleus and cytoplasm allows for the analysis of
traffic of molecules into and/or out of the nucleus since both the
fluorescence associated with both the nucleus and cytoplasm can be
analyzed separately. In addition, the system is equipped with a high
resolution color CCD camera which is used to image cells selected
based on any combination of fluorescence measurements and provides a
gallery of such cells for any subpopulation desired.The BCRI also
has two separate tissue culture facilities containing laminar flow
hoods, CO2 incubators, refrigerators/freezers,
liquid nitrogen for storage of cell lines, etc. A separate molecular
biology facility is also present which contains 3 PCR systems,
several gel electrophoresis systems (Wester, Northern, Southern and
Pulse field), Speedvac concentrators (2), Nikon Microphot FXA
microscope (with two 35 mm and one 4 x 5 format cameras and both
fluorescence and interference optics), electroporation apparatus,
desk-top publishing system, and refrigerators/freezers, balances,
centrifuges (refrigerated and room temperature) normally found in
laboratories. The BCRI provides additional services and
instrumentation. Thus, as noted above, there is a dark room for
processing of film containing a Kodak M35A X-OMAT film
processor.
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