Sensitive and specific detection of the 4B5 antigen in bronchial lavage specimens from patients with primary bronchogenic carcinoma.

Journal Article (Journal Article)

The monoclonal antibody 4B5 binds to a mucin-like antigen elaborated by respiratory epithelium of patients with non-small cell bronchogenic carcinoma. Several immunoassay formats were used to determine the presence of the antigen in lavage specimens. A qualitative immunodrop binding assay showed immunoreactivity in 37 (64%) of 58 specimens from patients with non-small cell lung cancer. In contrast, only 11 (12%) of 93 specimens from patients with either metastatic carcinoma or benign pulmonary diseases exhibited 4B5 immunoreactivity. A quantitative radioimmunoassay using standardized amounts of mucin exhibited similar sensitivity and specificity. Positive immunoreactivity was associated significantly with tobacco use and the cytopathologic diagnoses of squamous metaplasia, atypia, or dysplasia. Conversely, no significant association was found between 4B5 immunoreactivity and age, gender, race, benign cytologic findings, frankly malignant cytologic findings, or stage of disease. The expression of 4B5 antigen in bronchial secretions from patients with bronchogenic carcinoma deserves additional evaluation as a potential marker of pulmonary carcinogenesis.

Full Text

Duke Authors

Cited Authors

  • Pence, JC; Deutsch, MA; Kerns, BJ; Huper, G; Jordan, LK; Wolfe, WG; Samuelson, WM; Fulkerson, WJ; Dodge, RK; Plate, CA

Published Date

  • September 1, 1992

Published In

Volume / Issue

  • 70 / 5

Start / End Page

  • 1115 - 1123

PubMed ID

  • 1515986

International Standard Serial Number (ISSN)

  • 0008-543X

Digital Object Identifier (DOI)

  • 10.1002/1097-0142(19920901)70:5<1115::aid-cncr2820700516>;2-q


  • eng

Conference Location

  • United States