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Published on: October 25, 2015
Foetal steroid binding protein and malignancy
1Liver Unit, King's College School of Medicine and Dentistry, London, England.
Insights
Foetal steroid binding protein (FSBP) influences steroid binding in adults. Elevated FSBP serum levels are linked to liver disease and cancer, but higher levels may protect against breast cancer.
Area of Science:
- Biochemistry
- Oncology
- Hepatology
Background:
- Foetal steroid binding protein (FSBP) is present in adult human serum.
- FSBP influences steroid binding to albumin in vivo.
- Its role as a primary high-affinity binding protein is less evident.
Purpose of the Study:
- To investigate the association between FSBP serum levels and various diseases.
- To explore the potential protective role of FSBP against breast carcinoma.
- To examine links between FSBP and primary hepatocellular carcinoma.
Main Methods:
- Serum analysis for FSBP levels.
- Comparative analysis across racial groups with differing breast cancer risk.
- Examination of FSBP levels in patients with liver disease and cancer.
Main Results:
- Elevated FSBP serum levels observed in parenchymal liver disease, hepatic malignancy, and non-metastatic breast cancer.
- Higher FSBP levels found in healthy women from racial groups with lower breast cancer risk, suggesting a protective effect.
- FSBP's potential link to primary hepatocellular carcinoma is under examination.
Conclusions:
- FSBP may play a protective role against breast carcinoma development.
- Further research is warranted to understand FSBP's role in liver disease and cancer.
- FSBP's influence on steroid binding and its clinical significance require continued investigation.
Abstract:
Foetal steroid binding protein (FSBP) is a normal constituent of adult human serum; in vivo it appears to influence the degree of steroid binding to albumin rather than acting primarily as a high affinity saturable binding protein. Serum levels are elevated in patients with parenchymal liver disease, hepatic malignancy and in those with non-metastatic breast cancer. That FSBP is protective against the development of breast carcinoma is however supported by a comparison of healthy women from racial groups at differing risk of this malignancy in which higher levels are found in those at lower risk. This hypothesis and the possible links between FSBP and primary hepatocellular carcinoma are further examined.
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