Abstract
Ascites sarcoma-180 cells, when stained with platinum-pyrimidine complexes as the sole electron dense stain, show distinct dense patches to granular appearance on the surface of the plasma membrane which has been suggested to be attributable to deoxyribonucleic acid. Swiss Webster mice, 4-5 weeks of age, weighing 24-26 g with 4 X 10(6) ascites sarcoma-180 cells when injected with 3 X 7.0 micronC of tritiated thymidine on day 5 of the tumor implant, show specific labeling on the plasma membrane surface. The photopositive silver grain distribution in both the light and electron microscope autoradiograms when followed from the nucleus outwards show a distinct peak over the nucleus and the plasma membrane. The quantity and origin and role of this surface-associated deoxyribonucleic acid is not clear.
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Schedule a callMore From: The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society
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