Simple mucins (T, sialosyl-T, Tn and sialosyl-Tn) are not diagnostic for malignant breast lesions
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Simple mucins (T, sialosyl-T, Tn and sialosyl-Tn) are not diagnostic for malignant breast lesions. / Reed, W; Bryne, M; Clausen, H; Dabelsteen, Erik; Nesland, J M.
I: Anticancer Research, Bind 14, Nr. 2B, 01.03.1994, s. 609-15.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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T1 - Simple mucins (T, sialosyl-T, Tn and sialosyl-Tn) are not diagnostic for malignant breast lesions
AU - Reed, W
AU - Bryne, M
AU - Clausen, H
AU - Dabelsteen, Erik
AU - Nesland, J M
PY - 1994/3/1
Y1 - 1994/3/1
N2 - Immunohistochemical study of the distribution of carbohydrate core-structures on O-linked glycoproteins (T, sialosyl-T, Tn and sialosyl-Tn) was performed using specific monoclonal antibodies on 148 primary breast lesions, including 10 normal breast tissues, 16 benign lesions and 122 invasive carcinomas (79 localized and 43 metastatic lesions). T antigen, not observed in normal breast tissue, was present in 31% of the benign lesions and in some cases of morphologically normal epithelium adjacent to tumor cells, compatible with altered glycosylation being an early event. Sialosyl-T (s-T) antigen was present in all cases of normal epithelium and in 81% of the benign lesions. Both Tn and sialosyl-Tn (s-Tn) antigen were present in normal breast lesions. Both Tn and sialosyl-Tn (s-Tn) antigen were present in normal breast tissue (30%) and benign lesions (31% and 19%). In the malignant lesions, 20% were positive for T antigen, 82% for s-T antigen, 66% for Tn antigen and 22% for s-Tn antigen. The staining pattern was nearly identical for carcinomas with and without lymph node metastases. In conclusion, immunostaining for simple mucins does not permit a clear distinction between benign and malignant breast lesions.
AB - Immunohistochemical study of the distribution of carbohydrate core-structures on O-linked glycoproteins (T, sialosyl-T, Tn and sialosyl-Tn) was performed using specific monoclonal antibodies on 148 primary breast lesions, including 10 normal breast tissues, 16 benign lesions and 122 invasive carcinomas (79 localized and 43 metastatic lesions). T antigen, not observed in normal breast tissue, was present in 31% of the benign lesions and in some cases of morphologically normal epithelium adjacent to tumor cells, compatible with altered glycosylation being an early event. Sialosyl-T (s-T) antigen was present in all cases of normal epithelium and in 81% of the benign lesions. Both Tn and sialosyl-Tn (s-Tn) antigen were present in normal breast lesions. Both Tn and sialosyl-Tn (s-Tn) antigen were present in normal breast tissue (30%) and benign lesions (31% and 19%). In the malignant lesions, 20% were positive for T antigen, 82% for s-T antigen, 66% for Tn antigen and 22% for s-Tn antigen. The staining pattern was nearly identical for carcinomas with and without lymph node metastases. In conclusion, immunostaining for simple mucins does not permit a clear distinction between benign and malignant breast lesions.
KW - Antibodies, Monoclonal
KW - Antigens, Tumor-Associated, Carbohydrate
KW - Antigens, Viral, Tumor
KW - Biological Markers
KW - Breast
KW - Breast Neoplasms
KW - Carbohydrate Sequence
KW - Carbohydrates
KW - Carcinoma, Ductal, Breast
KW - Epithelial Cells
KW - Epithelium
KW - Epitopes
KW - Female
KW - Humans
KW - Immunohistochemistry
KW - Molecular Sequence Data
KW - Mucins
KW - Neoplasm Invasiveness
KW - Neoplasm Metastasis
KW - Oligosaccharides
KW - Tumor Markers, Biological
M3 - Journal article
C2 - 7516636
VL - 14
SP - 609
EP - 615
JO - Anticancer Research
JF - Anticancer Research
SN - 0250-7005
IS - 2B
ER -
ID: 119595372