Differential retention of rhodamine 123 by breast carcinoma and normal human mammary tissue.

Abstract:

:We have qualitatively evaluated the retention of the fluorescent dye rhodamine 123 by malignant or non-malignant breast epithelial cells in passively-infused fresh surgical specimens. Our findings demonstrate a microscopically-visible increase in the ability of primary and metastatic tumor cells to retain the dye, as compared to non-malignant epithelium. Some variability in fluorescence intensity was seen within and between tumor specimens. The optimal length of incubation in the presence of the dye was critical in achieving differential fluorescence intensity between normal and malignant cells. This method of examining rhodamine 123 uptake and retention in tissue explants provides a reliable means for direct, comparative visualization in situ of any tissue and its associated disorders. The results of this study also demonstrate the validity of extending the use of lipophilic, cationic compounds such as rhodamine 123 as antitumor agents, from model systems to the treatment of malignant disease.

authors

Dairkee SH,Hackett AJ

doi

10.1007/BF01975444

subject

Has Abstract

pub_date

1991-03-01 00:00:00

pages

57-61

issue

1

eissn

0167-6806

issn

1573-7217

journal_volume

18

pub_type

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