Related Experiment Videos
[hCG and its subunits as tumor markers]
M C Feinstein1, A Akar, C Blacker
1Fondation de Recherche en Hormonologie, Fresnes, France.
Journal of Steroid Biochemistry
|October 1, 1989
Summary
Human chorionic gonadotropin (hCG) and its free beta subunit are valuable tumor markers in males. Detecting both intact hCG and free beta subunits improves cancer diagnosis and prognosis for gonadal and extragonadal malignancies.
Area of Science:
- Endocrinology and Oncology
- Tumor marker detection and analysis
Context:
- Human chorionic gonadotropin (hCG) is produced by trophoblastic cells and various normal tissues and malignancies.
- hCG is a recognized marker for gonadal and extragonadal choriocarcinomas and has been identified in other cancers via immunohistochemistry.
Purpose:
- To investigate the presence and significance of intact hCG and its free alpha and beta subunits in male patients with various tumors.
- To correlate the detection of hCG subunits with tumor type and disease progression.
Summary:
- In a study of 73 males, intact hCG was detected in 48 patients with gonadal (37) or extragonadal (11) malignancies, with or without free subunits.
- In 25 patients, intact hCG was absent, but significant free beta subunit levels were found in 8 germ cell tumors and 17 extragonadal tumors.
- Free beta subunit production correlated with severe progression in extragonadal tumors, highlighting its prognostic value.
Impact:
- hCG, including intact form and free beta subunits, should be considered a valuable marker for a wide range of tumors in males.
- Evaluating both intact hCG and free beta subunits is crucial for accurate tumor assessment and understanding disease severity.