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Immunohistochemical detection of Ki-67 in epithelial skin tumors in formalin-fixed paraffin-embedded tissue sections using a new monoclonal antibody (MIB-1). 1996

M Matsuta, and S Kimura, and G Kosegawa, and S Kon, and M Matsuta
Department of Dermatology, Iwate Medical University, Morioka, Japan.

The expression of the Ki-67 antigen was investigated in 44 epithelial skin tumors using an immunohistochemical technique on formalin-fixed, paraffin-embedded tissue sections. Microwave oven heating was employed for retrieval of the antigen in these tissue sections. The staining patterns varied among the epithelial skin tumors. The assessment of immunohistochemical staining was based upon the growth fraction (GF), defined as the number of Ki-67 positive cells divided by the total number of tumor cells counted and expressed as a percentage. GF was 9.7 +/- 3.1% in seborrheic keratosis, 19.5 +/- 2.9% in keratoacanthoma, 23.1 +/- 4.9% in basal cell carcinoma, 18.5 +/- 6.3% in actinic keratosis, 37.1 +/- 6.0% in Bowen's disease, and 32.9 +/- 10.5% in squamous cell carcinoma. There was a significant difference in GF between the keratoacanthoma and squamous cell carcinoma (p < 0.01). Actinic keratosis showed a relatively low GF, whereas Bowen's disease showed a high one. Furthermore, the GF tended to increase with tumor cell differentiation in squamous cell carcinoma: 23.7% (+/- 5.0) in well-differentiated, 35.0% (+/- 6.2) in moderately-differentiated, and 47.6% (+/- 4.5) in poorly-differentiated squamous cell carcinomas. Immunohistochemistry with MIB-1 may give useful additional information in the differential diagnosis of KA and SCC.

UI MeSH Term Description Entries
D007150 Immunohistochemistry Histochemical localization of immunoreactive substances using labeled antibodies as reagents. Immunocytochemistry,Immunogold Techniques,Immunogold-Silver Techniques,Immunohistocytochemistry,Immunolabeling Techniques,Immunogold Technics,Immunogold-Silver Technics,Immunolabeling Technics,Immunogold Silver Technics,Immunogold Silver Techniques,Immunogold Technic,Immunogold Technique,Immunogold-Silver Technic,Immunogold-Silver Technique,Immunolabeling Technic,Immunolabeling Technique,Technic, Immunogold,Technic, Immunogold-Silver,Technic, Immunolabeling,Technics, Immunogold,Technics, Immunogold-Silver,Technics, Immunolabeling,Technique, Immunogold,Technique, Immunogold-Silver,Technique, Immunolabeling,Techniques, Immunogold,Techniques, Immunogold-Silver,Techniques, Immunolabeling
D007636 Keratoacanthoma A benign, non-neoplastic, usually self-limiting epithelial lesion closely resembling squamous cell carcinoma clinically and histopathologically. It occurs in solitary, multiple, and eruptive forms. The solitary and multiple forms occur on sunlight exposed areas and are identical histologically; they affect primarily white males. The eruptive form usually involves both sexes and appears as a generalized papular eruption. Keratoacanthomas
D002294 Carcinoma, Squamous Cell A carcinoma derived from stratified SQUAMOUS EPITHELIAL CELLS. It may also occur in sites where glandular or columnar epithelium is normally present. (From Stedman, 25th ed) Carcinoma, Epidermoid,Carcinoma, Planocellular,Carcinoma, Squamous,Squamous Cell Carcinoma,Carcinomas, Epidermoid,Carcinomas, Planocellular,Carcinomas, Squamous,Carcinomas, Squamous Cell,Epidermoid Carcinoma,Epidermoid Carcinomas,Planocellular Carcinoma,Planocellular Carcinomas,Squamous Carcinoma,Squamous Carcinomas,Squamous Cell Carcinomas
D003937 Diagnosis, Differential Determination of which one of two or more diseases or conditions a patient is suffering from by systematically comparing and contrasting results of diagnostic measures. Diagnoses, Differential,Differential Diagnoses,Differential Diagnosis
D004848 Epithelium The layers of EPITHELIAL CELLS which cover the inner and outer surfaces of the cutaneous, mucus, and serous tissues and glands of the body. Mesothelium,Epithelial Tissue,Mesothelial Tissue,Epithelial Tissues,Mesothelial Tissues,Tissue, Epithelial,Tissue, Mesothelial,Tissues, Epithelial,Tissues, Mesothelial
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
D012878 Skin Neoplasms Tumors or cancer of the SKIN. Cancer of Skin,Skin Cancer,Cancer of the Skin,Neoplasms, Skin,Cancer, Skin,Cancers, Skin,Neoplasm, Skin,Skin Cancers,Skin Neoplasm
D014407 Tumor Cells, Cultured Cells grown in vitro from neoplastic tissue. If they can be established as a TUMOR CELL LINE, they can be propagated in cell culture indefinitely. Cultured Tumor Cells,Neoplastic Cells, Cultured,Cultured Neoplastic Cells,Cell, Cultured Neoplastic,Cell, Cultured Tumor,Cells, Cultured Neoplastic,Cells, Cultured Tumor,Cultured Neoplastic Cell,Cultured Tumor Cell,Neoplastic Cell, Cultured,Tumor Cell, Cultured
D019394 Ki-67 Antigen A CELL CYCLE and tumor growth marker which can be readily detected using IMMUNOCYTOCHEMISTRY methods. Ki-67 is a nuclear antigen present only in the nuclei of cycling cells. Antigen Ki-67,MIB-1 Antigen,Antigen Ki67,Antigen Ki 67,Antigen, Ki-67,Antigen, MIB-1,Ki 67 Antigen,Ki-67, Antigen,Ki67, Antigen,MIB 1 Antigen

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