Bony metastases from breast cancer: a study of foetal antigen 2 as a blood tumour marker.

Cheung, Kwok-Leung, Iles, Ray K. and Robertson, John (2010) Bony metastases from breast cancer: a study of foetal antigen 2 as a blood tumour marker. World Journal of Surgical Oncology, 8 (38) . ISSN 1477-7819 [Article] (doi:10.1186/1477-7819-8-38)

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Abstract

Background : Foetal antigen 2 (FA-2), first isolated in the amniotic fluid, was shown to be the circulating form of the aminopropeptide of the alpha 1 chain of procollagen type I. Serum concentrations of FA-2 appeared to be elevated in a number of disorders of bone metabolism. This paper is the first report of its role as a marker of bone metabolism in metastatic breast cancer.
Methods: Serum FA-2 concentrations were measured by radioimmunoassay in 153 women with different stages of breast cancer and in 34 normal controls.
Results: Serum FA-2 was significantly elevated in women with bony metastases (p < 0.015). Its levels were not significantly different among women with non-bony metastases, with non-metastatic disease, as well as among normal controls.
Conclusions: FA-2 is a promising blood marker of bone metabolism. Further studies to delineate its role in the diagnosis and management of bony metastases from breast cancer are required.

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