Assay of serum CEACAM1 as a potential biomarker for breast cancer.
BACKGROUND
Carcinoembryonic antigen-related cell adhesion molecule 1 (CEACAM1) is a widely expressed multi-functional adhesion molecule reported to serve as a serum biomarker in several types of cancer. However, the serum CEACAM1 expression in breast cancer is unclear. We investigated the serum concentrations of CEACAM1 in patients with breast cancer and determine the potential of serum CEACAM1 as a breast cancer biomarker.


METHODS
Serum specimens were obtained from 33 patients with breast cancer, 30 patients with benign breast diseases and 34 healthy donors. The serum CEACAM1 concentrations were examined by an enzyme-linked immunosorbent assay (ELISA).


RESULTS
The serum CEACAM1 concentrations in the malignant group (532 ng/ml) were significantly higher than those of the benign group (423 ng/ml) and healthy control group (386 ng/ml) (both p<0.001). Based on univariable logistic regression, serum CEACAM1 concentrations significantly predicted breast cancer versus normal controls or benign breast diseases. Area under receiver operating characteristic curve (ROC) for serum CEACAM1 was 0.925(95% CI: 0.866-0.984). The optimal cut-off concentration of CEACAM1 was 475.82 ng/ml for discriminating breast cancer from normal controls.


CONCLUSIONS
Serum concentrations of CEACAM1 may serve as a useful indicator for the presence of breast cancer.
Department of Molecular Biology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai 200233, PR China.
Changcheng
C
Yang
Department of Breast Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai 200233, PR China.
Pingqing
P
He
Department of Molecular Biology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai 200233, PR China.
Yiwen
Y
Liu
Department of Molecular Biology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai 200233, PR China.
Yiqing
Y
He
Department of Molecular Biology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai 200233, PR China.
Cuixia
C
Yang
Department of Molecular Biology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai 200233, PR China.
Yan
Y
Du
Department of Molecular Biology and Clinical Laboratory, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai 200233, PR China.
Muqing
M
Zhou
Department of Molecular Biology and Clinical Laboratory, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai 200233, PR China.
Wenjuan
W
Wang
Department of Molecular Biology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai 200233, PR China.
Guoliang
G
Zhang
Department of Molecular Biology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai 200233, PR China.
Man
M
Wu
Department of Molecular Biology and Clinical Laboratory, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai 200233, PR China. Electronic address: gao3507@126.com.
Feng
F
Gao
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015703:Antigens, CD / Q000097:blood* / Q000378:metabolism; D014408:Biomarkers, Tumor / Q000097:blood* / Q000378:metabolism; D001943:Breast Neoplasms / Q000097:blood* / Q000378:metabolism; D016022:Case-Control Studies; D015815:Cell Adhesion Molecules / Q000097:blood* / Q000378:metabolism; D005260:Female; D015972:Gene Expression Regulation, Neoplastic; D006801:Humans; D008297:Male; D008875:Middle Aged
D015703:Antigens, CD; D014408:Biomarkers, Tumor; C069847:CD66 antigens; D015815:Cell Adhesion Molecules
Breast cancer; CEACAM1; Diagnostic value; Tumor biomarker