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Copper and copper-binding protein in liver tumors
B Guigui1, P Mavier, M C Lescs
1Département de Pathologie Tissulaire et Cellulaire, Hôpital Henri Mondor, Créteil, France.
Cancer
|March 15, 1988
Summary
Copper and copper-binding protein are present in most hepatocellular carcinomas, not just fibrolamellar types. This finding may help distinguish primary liver tumors from secondary ones.
Area of Science:
- Hepatobiliary pathology
- Oncology
- Trace element research
Background:
- Copper accumulation is a known feature in some liver diseases and certain types of liver cancer.
- Previous studies suggested copper deposition was primarily linked to fibrolamellar hepatocellular carcinoma.
Purpose of the Study:
- To investigate the prevalence and distribution of copper and copper-binding protein in various liver tumors.
- To determine if copper presence can aid in differentiating primary liver tumors from metastatic tumors.
Main Methods:
- Histochemical analysis using rhodanine for copper and modified orcein for copper-binding protein.
- Examination of 39 hepatocellular carcinomas, 24 metastatic liver tumors, and 8 benign hepatic tumors.
Main Results:
- Copper and copper-binding protein were found in 28% of hepatocellular carcinomas, with deposition intensity related to intralesional bile.
- These substances were absent in metastatic liver tumors.
- Copper and copper-binding protein were observed in 25% of benign hepatic tumors.
Conclusions:
- Copper and copper-binding protein deposition occurs in various hepatocellular carcinoma subtypes, not exclusively fibrolamellar types.
- The presence of copper and copper-binding protein may serve as a biomarker to differentiate primary liver cancers from secondary liver tumors.