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Neuroendocrine activity in metastatic breast carcinomas
J M Nesland1, R Holm, L Ottestad
1Department of Pathology, Norwegian Radium Hospital, Oslo.
APMIS. Supplementum
|January 1, 1988
Summary
This study investigated neuron-specific enolase (NSE) and hormone expression in breast cancer lymph node metastases. Findings indicate no direct relationship between primary tumors and metastases regarding these markers.
Area of Science:
- Oncology
- Biochemistry
- Pathology
Background:
- Neuron-specific enolase (NSE) and hormone expression are potential biomarkers in breast cancer.
- Investigating these markers in lymph node metastases is crucial for understanding cancer progression.
Purpose of the Study:
- To examine the expression patterns of NSE and various hormones in lymph node metastases of primary breast carcinomas.
- To determine if there is a correlation between the expression of these markers in primary tumors and their corresponding metastases.
Main Methods:
- Immunohistochemical analysis of NSE and hormone immunoreactivity.
- Examination of 15 primary breast carcinoma cases with lymph node metastases.
- Comparison of marker expression between primary tumors and metastatic lesions.
Main Results:
- NSE immunoreactivity was found in 7 out of 15 lymph node metastases.
- Four cases showed NSE-positive metastases with NSE-negative primary tumors.
- Hormone immunoreactivity (gastrin, prealbumin, ACTH, beta-endorphin, somatostatin) was present in 5 of the 7 NSE-positive metastatic lesions.
Conclusions:
- No consistent relationship exists between primary breast tumors and their lymph node metastases concerning NSE and hormone immunoreactivity.
- Metastatic lesions can exhibit NSE expression independent of the primary tumor.
- Hormone expression in metastases may occur even when not detected in the primary tumor.