Authors: | Glasgold, R.; Glasgold, M.; Savage, H.; Pinto, J.; Alfano, R.; Schantz, S. |
Article Title: | Tissue autofluorescence as an intermediate endpoint in NMBA-induced esophageal carcinogenesis |
Abstract: | The capacity to identify subclinical neoplastic disease of the upper aerodigestive tract (UADT) using tissue autofluorescent spectroscopy would significantly contribute to cancer screening. Rats received N-nitrosomethyl benzylamine (NMBA), a carcinogen shown to cause esophageal malignancies. Following sacrifice at early weekly intervals, gross assessment of esophageal mucosa of NMBA-exposed rats was indistinguishable from saline-treated controls. Histopathologic evaluation, however, revealed NMBA-induced preneoplastic changes in the epithelium. Concurrent with these changes, the NMBA-exposed rats demonstrated specific alterations in autofluorescence. These results demonstrate that NMBA-induced esophageal premalignancy can be distinguished by autofluorescent properties. The capacity to detect alterations in autofluorescence may allow more sensitive screening of UADT mucosa at risk for cancer development. © 1994. |
Keywords: | controlled study; histopathology; carcinoma, squamous cell; nonhuman; animal; animal tissue; fluorescence; animal experiment; animal model; cancer screening; carcinogenesis; animalia; rat; fluorescence spectroscopy; rats; rats, sprague-dawley; esophagus cancer; esophageal neoplasms; carcinogen; precancerous conditions; carcinogens; spectrum analysis; precancer; autofluorescence; esophagus mucosa; priority journal; article; esophageal malignancy; n-nitrosomethyl benzylamine; preneoplastic changes; tissue autofluorescence; n benzyl n methylnitrosamine; dimethylnitrosamine |
Journal Title: | Cancer Letters |
Volume: | 82 |
Issue: | 1 |
ISSN: | 0304-3835 |
Publisher: | Elsevier Ireland Ltd. |
Date Published: | 1994-07-15 |
Start Page: | 33 |
End Page: | 41 |
Language: | English |
DOI: | 10.1016/0304-3835(94)90143-0 |
PROVIDER: | scopus |
PUBMED: | 8033066 |
DOI/URL: | |
Notes: | Export Date: 14 January 2019 -- Article -- Source: Scopus |