PMID: 8458283Jan 1, 1993Paper

Detection of growth fraction in tumors by Ki67 monoclonal antibody in cytologic smears: a prospective study of 40 cases

Diagnostic Cytopathology
M RishiH Ehya

Abstract

The monoclonal antibody (MAb) Ki67 detects a nuclear antigen in cycling tumor cells. Quantitation of proliferating cells is helpful in predicting the recurrence and metastatic potential of tumors as previously reported. We conducted a prospective study on 40 benign and malignant tumors by performing Ki67 immunocytochemical stains on cytologic smears and their corresponding frozen tissues. Quantitation of Ki67 positive cells was done by counting 300 cells in 5-7 high-power fields in cytologic smears and tissues. Only nuclear or nucleolar immunostaining was considered positive for MAb Ki67. The number of Ki67 positive tumor cells in cytologic smears correlated well with Ki67 positive cells from corresponding tissues. On the average, cytologic smears showed 1.9% higher Ki67 positivity in malignant tumors as compared to their corresponding frozen tissues (P < 0.001). The Ki67 positivity in malignant tumors was found to be significantly higher when compared with benign tumors (P < 0.001). We conclude that cytologic smears can be used for the determination of growth potential in tumors by MAb Ki67. Additionally, cytologic preparations can be used during intraoperative consultations when adequate tissue is not available for the above ...Continue Reading

References

Jan 1, 1990·Diagnostic Cytopathology·C D ScopaD Bonikos
Mar 1, 1988·The Journal of Pathology·P A HallA G Stansfeld
Jun 1, 1989·British Journal of Cancer·N BouzubarR I Nicholson
May 1, 1989·The Journal of Pathology·W F GrigioniA M Mancini
Nov 1, 1989·Cytometry·L L WheelessR S Weinstein
Sep 1, 1986·Journal of Clinical Pathology·J GerdesH Stein
Feb 1, 1984·The Journal of Histochemistry and Cytochemistry : Official Journal of the Histochemistry Society·J L CordellD Y Mason

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Citations

Dec 1, 1995·Diagnostic Cytopathology·S Masood
Apr 4, 2000·Oral Oncology·S C Liu, A J Klein-Szanto
May 28, 2004·Applied Immunohistochemistry & Molecular Morphology : AIMM·Anthony S Y Leong
Mar 15, 2002·Applied Immunohistochemistry & Molecular Morphology : AIMM·Zhuowen ZengKhush Mittal
Jan 1, 1995·Journal of Cellular Biochemistry. Supplement·M T RuffinD E Brenner

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