Expression of genes coding for pS2, c-erbB2, estrogen receptor and the H23 breast tumor-associated antigen. A comparative analysis in breast cancer.
Expression of the gene coding for a new breast tumor-associated antigen, H23, was compared to expression of genes coding for pS2, c-erbB2 and estrogen receptor (ER). Comparison involved mRNA expression in normal and malignant breast tissues as well as in non-breast tumors. Results obtained by RNA dot blot and Northern hybridizations showed that expression of the H23 antigen coding gene is a discriminatory marker in human breast cancer. It is expressed in 92% of breast tumors whereas 69%, 62% and 56% of breast tumors demonstrate significant mRNA levels of c-erbB2, ER and pS2, respectively. Non-malignant or normal breast tissue expresses much lower levels of the H23 antigen mRNA. From the comparative analysis presented here it is concluded that the gene coding for H23 antigen furnishes a most useful marker for human breast cancer.
Department of Microbiology, Faculty of Life Sciences, Tel Aviv University, Ramat Aviv, Israel.
J Z
JZ
Zaretsky
M
M
Weiss
I
I
Tsarfaty
M
M
Hareuveni
D H
DH
Wreschner
I
I
Keydar
D000230:Adenocarcinoma / Q000235:genetics / Q000378:metabolism; D015152:Blotting, Northern; D001940:Breast / Q000378:metabolism; D001943:Breast Neoplasms / Q000235:genetics* / Q000378:metabolism; D066246:ErbB Receptors; D004967:Estrogens / Q000378:metabolism; D005260:Female; D015870:Gene Expression; D006801:Humans; D009363:Neoplasm Proteins / Q000235:genetics*; D011505:Protein-Tyrosine Kinases / Q000235:genetics; D011506:Proteins; D011518:Proto-Oncogene Proteins / Q000235:genetics*; D012333:RNA, Messenger / Q000235:genetics; D011960:Receptors, Estrogen / Q000235:genetics*; D013964:Thyroid Neoplasms / Q000235:genetics / Q000378:metabolism; D000071163:Trefoil Factor-1; D025521:Tumor Suppressor Proteins
D004967:Estrogens; D009363:Neoplasm Proteins; D011506:Proteins; D011518:Proto-Oncogene Proteins; D012333:RNA, Messenger; D011960:Receptors, Estrogen; C051838:TFF1 protein, human; D000071163:Trefoil Factor-1; D025521:Tumor Suppressor Proteins; D066246:ErbB Receptors; D011505:Protein-Tyrosine Kinases