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[Delayed hypersensitivity in pediatric patients with cancer].
Boletin Medico Del Hospital Infantil De Mexico
|November 1, 1977
Summary
Childhood cancer patients showed reduced skin test reactivity to antigens, particularly those dying from cancer. This suggests immune alterations may impact prognosis in pediatric malignancies.
Area of Science:
- Immunology
- Pediatric Oncology
- Cancer Research
Background:
- Host immunity may influence cancer development and progression.
- Delayed hypersensitivity assessed via skin testing is a measure of cellular immune function.
Purpose of the Study:
- To investigate the relationship between childhood cancer and host immune status.
- To assess delayed hypersensitivity responses in children with malignancies.
Main Methods:
- Skin testing with a battery of antigens and dinitrochlorobenzene (DNCB) was performed on 46 children with cancer and 28 controls.
- Rechallenge with DNCB was conducted in a subset of patients and controls.
Main Results:
- No significant differences in secondary antigen reactivity were observed between cancer patients and controls, or between surviving and deceased patients.
- Anergy (lack of reactivity) to DNCB rechallenge was notably frequent in children who died from cancer.
Conclusions:
- Immune alterations in non-tumor-specific factors appear associated with prognosis in certain childhood cancers.
- Impaired delayed hypersensitivity, particularly to DNCB, may indicate a poorer prognosis in pediatric malignancies.
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