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E rosettes in the uranium miners with lung cancer
Czechoslovak Medicine
|January 1, 1979
Summary
Peripheral T-lymphocytes show reduced rosette-forming cell (RFC) capacity in lung cancer, chronic bronchitis, and even in healthy individuals with radiation exposure. This indicates a general impairment of T-lymphocyte function under these conditions.
Area of Science:
- Immunology
- Oncology
- Environmental Health
Background:
- Rosette-forming cells (RFC) are crucial indicators of T-lymphocyte function.
- Previous research suggests environmental factors and diseases can impact immune cell activity.
Purpose of the Study:
- To evaluate rosette-forming cell (RFC) levels in peripheral blood.
- To compare RFC levels in healthy individuals, lung cancer patients, chronic bronchitis patients, and individuals with radiation exposure.
Main Methods:
- Enumeration of two types of rosettes: lymphocytes binding 1-2 sheep red blood cells (SRBC) and lymphocytes binding 3+ SRBC.
- Calculation of the total RFC count per microliter of peripheral blood.
- Classification of lung cancer patients by TNM staging and histology.
Main Results:
- Depressed RFC capacity was observed in peripheral T-lymphocytes of patients with lung cancer and chronic bronchitis.
- Healthy individuals with radiation exposure also exhibited depressed RFC capacity.
- No significant difference in RFC levels was found between the radiation-exposed control group and patients with cancer or chronic bronchitis.
Conclusions:
- Radiation exposure, lung cancer, and chronic bronchitis are associated with impaired T-lymphocyte rosette-forming capacity.
- The findings suggest a common mechanism of T-lymphocyte dysfunction in these conditions.