Biomaterial Database

Detection of tumor cells in bladder washings by a monoclonal antibody to human bladder tumor-associated antigen. 1988

C W Lin, and D A Young, and S D Kirley, and A H Khaw, and G R Prout

Urology Service, Massachusetts General Hospital, Boston 02114.

We have conducted two studies to evaluate the efficacy of using a specific monoclonal antibody (McAb) to detect exfoliated tumor cells in bladder washings. This is a preliminary step toward the development of immunological methods to improve the cytologic detection of bladder carcinoma. In this study, McAb 3G2-C6 was used. The McAb reacts to a bladder tumor-associated cell-surface antigen expressed in bladder tumors of various grades. Bladder washings from patients with and without carcinoma were stained with the McAb using two different indirect immunofluorescence methods (Methods A and B). The results of the immunological studies were compared with those obtained from the cytology laboratory and these in turn, were evaluated against the histopathological diagnosis of respective patients at the time the samples were taken. Immunofluorescence method A detected positive cells in 87% (56/64) of specimens from bladder cancer patients, including 18 of 19 from patients with grade 1 tumor. This method also had a low false-positive rate; only one of 17 specimens from patients with other urinary disorders had positively reacting cells. Immunofluorescence method B, evaluating a second group of specimens, detected positive cells in 68% (15/22) of specimens from patients with carcinoma, and in only one of 17 controls. However, it also identified positive cells in specimens from patients with chronic cystitis and urinary calculi. Overall the results of these studies indicate that the McAb method is superior to the routine cytology in detecting tumor cells in bladder washing specimens. More work must be done, however, to improve the specificity of the method before it can be used as an aid for routine tumor detection.

UI	MeSH Term	Description	Entries
D007507	Therapeutic Irrigation	The washing of a body cavity or surface by flowing water or solution for therapy or diagnosis.	Douching,Lavage,Douchings,Irrigation, Therapeutic,Irrigations, Therapeutic,Lavages,Therapeutic Irrigations
D001749	Urinary Bladder Neoplasms	Tumors or cancer of the URINARY BLADDER.	Bladder Cancer,Bladder Neoplasms,Cancer of Bladder,Bladder Tumors,Cancer of the Bladder,Malignant Tumor of Urinary Bladder,Neoplasms, Bladder,Urinary Bladder Cancer,Bladder Cancers,Bladder Neoplasm,Bladder Tumor,Cancer, Bladder,Cancer, Urinary Bladder,Neoplasm, Bladder,Neoplasm, Urinary Bladder,Tumor, Bladder,Tumors, Bladder,Urinary Bladder Neoplasm
D003581	Cytodiagnosis	Diagnosis of the type and, when feasible, the cause of a pathologic process by means of microscopic study of cells in an exudate or other form of body fluid. (Stedman, 26th ed)	Cytodiagnoses
D005434	Flow Cytometry	Technique using an instrument system for making, processing, and displaying one or more measurements on individual cells obtained from a cell suspension. Cells are usually stained with one or more fluorescent dyes specific to cell components of interest, e.g., DNA, and fluorescence of each cell is measured as it rapidly transverses the excitation beam (laser or mercury arc lamp). Fluorescence provides a quantitative measure of various biochemical and biophysical properties of the cell, as well as a basis for cell sorting. Other measurable optical parameters include light absorption and light scattering, the latter being applicable to the measurement of cell size, shape, density, granularity, and stain uptake.	Cytofluorometry, Flow,Cytometry, Flow,Flow Microfluorimetry,Fluorescence-Activated Cell Sorting,Microfluorometry, Flow,Cell Sorting, Fluorescence-Activated,Cell Sortings, Fluorescence-Activated,Cytofluorometries, Flow,Cytometries, Flow,Flow Cytofluorometries,Flow Cytofluorometry,Flow Cytometries,Flow Microfluorometries,Flow Microfluorometry,Fluorescence Activated Cell Sorting,Fluorescence-Activated Cell Sortings,Microfluorimetry, Flow,Microfluorometries, Flow,Sorting, Fluorescence-Activated Cell,Sortings, Fluorescence-Activated Cell
D005455	Fluorescent Antibody Technique	Test for tissue antigen using either a direct method, by conjugation of antibody with fluorescent dye (FLUORESCENT ANTIBODY TECHNIQUE, DIRECT) or an indirect method, by formation of antigen-antibody complex which is then labeled with fluorescein-conjugated anti-immunoglobulin antibody (FLUORESCENT ANTIBODY TECHNIQUE, INDIRECT). The tissue is then examined by fluorescence microscopy.	Antinuclear Antibody Test, Fluorescent,Coon's Technique,Fluorescent Antinuclear Antibody Test,Fluorescent Protein Tracing,Immunofluorescence Technique,Coon's Technic,Fluorescent Antibody Technic,Immunofluorescence,Immunofluorescence Technic,Antibody Technic, Fluorescent,Antibody Technics, Fluorescent,Antibody Technique, Fluorescent,Antibody Techniques, Fluorescent,Coon Technic,Coon Technique,Coons Technic,Coons Technique,Fluorescent Antibody Technics,Fluorescent Antibody Techniques,Fluorescent Protein Tracings,Immunofluorescence Technics,Immunofluorescence Techniques,Protein Tracing, Fluorescent,Protein Tracings, Fluorescent,Technic, Coon's,Technic, Fluorescent Antibody,Technic, Immunofluorescence,Technics, Fluorescent Antibody,Technics, Immunofluorescence,Technique, Coon's,Technique, Fluorescent Antibody,Technique, Immunofluorescence,Techniques, Fluorescent Antibody,Techniques, Immunofluorescence,Tracing, Fluorescent Protein,Tracings, Fluorescent Protein
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000911	Antibodies, Monoclonal	Antibodies produced by a single clone of cells.	Monoclonal Antibodies,Monoclonal Antibody,Antibody, Monoclonal
D000951	Antigens, Neoplasm	Proteins, glycoprotein, or lipoprotein moieties on surfaces of tumor cells that are usually identified by monoclonal antibodies. Many of these are of either embryonic or viral origin.	Neoplasm Antigens,Tumor Antigen,Tumor Antigens,Antigen, Tumor,Antigens, Tumor
D014556	Urine	Liquid by-product of excretion produced in the kidneys, temporarily stored in the bladder until discharge through the URETHRA.