A sample containing tumor cells was mixed
with a sample of normal cells from the lung (epithelial cells,
intermediate squamous cells). A small amount of the mixture
was placed on a microscope slide, fixed, and then stained with
TCPP.
Photomicrograph A shows two cells, as viewed
under "brightfield" microscopy, with a 40x magnification.
Normal "white" light is used to illuminate the sample.
 |
|
Photomicrograph A: Sample under normal white light
|
Photomicrograph B shows the same slide as is
shown in Photomicrograph A, but viewed with a 40x
magnification using the technique of fluorescent microscopy
(similar to viewing with a "black light" and looking for cells
to glow). The tumor cell is glowing red. The normal cell does
not appear to glow at all.
 |
|
Photomicrograph B: Tumor cell is glowing red
|
