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[Immune complexes in neoplastic diseases and autoimmune processes]
Voprosy Onkologii
|January 1, 1983
Summary
Elevated circulating immune complexes (ICs) are linked to several cancers, particularly melanomas. Higher IC levels correlate with tumor growth and stage in breast cancer patients, suggesting a role in malignancy.
Area of Science:
- Oncology
- Immunology
- Pathology
Background:
- Circulating immune complexes (ICs) are implicated in various diseases.
- Their role in cancer pathogenesis requires further elucidation.
Purpose of the Study:
- To investigate the levels of ICs in cancer patients.
- To explore the correlation between IC levels and cancer progression.
- To compare the pathogenic effects of ICs in malignancies and immune complex diseases.
Main Methods:
- Polyethylene glycol precipitation method used to quantify ICs.
- Sera analyzed from 109 untreated cancer patients (melanoblastoma, lung, breast).
- Sera analyzed from 118 patients with immune complex diseases (collagenosis, nephropathia, vasculitis, immune hemocytopenia).
Main Results:
- The highest IC levels were observed in melanoblastoma patients.
- Elevated IC concentrations were found in 42% of lung and 44% of breast cancer patients.
- A positive correlation was identified between increased IC levels, tumor growth rate, and clinical stage in breast cancer.
Conclusions:
- Circulating immune complexes are significantly elevated in patients with certain cancers, especially melanomas.
- ICs may play a pathogenic role in malignancies, correlating with tumor progression.
- Further research is warranted to understand the precise mechanisms and therapeutic implications.