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Mechanisms of cancer cachexia
1Surgical Metabolism Section, National Cancer Institute, National Institutes of Health, Bethesda, Maryland.
Hematology/Oncology Clinics of North America
|February 1, 1991
Summary
Inflammatory cytokines, such as tumor necrosis factor (TNF), play a key role in cancer cachexia, a wasting syndrome. Blocking TNF can prevent cachectic changes, suggesting therapeutic potential.
Area of Science:
- Oncology
- Immunology
- Molecular Biology
Background:
- Cancer cachexia is a complex wasting syndrome characterized by malnutrition and death.
- It involves inflammatory cytokines, leading to metabolic changes similar to sepsis.
- Tumor necrosis factor (TNF) is a key suspected mediator.
Purpose of the Study:
- To investigate the role of specific cytokines in cancer cachexia.
- To explore the potential of targeting these cytokines for therapeutic intervention.
Main Methods:
- Administration of tumor necrosis factor (TNF) to simulate cachectic changes.
- Use of specific antisera to block TNF effects.
- Investigation of other cytokines like IL-1, IL-6, and interferon-gamma.
Main Results:
- Low-dose TNF administration replicated cancer cachexia.
- Specific antisera blocked these cachectic changes.
- IL-1, IL-6, and interferon-gamma are also implicated as potential mediators.
Conclusions:
- Tumor necrosis factor (TNF) is a significant mediator of cancer cachexia.
- Targeting TNF and other inflammatory cytokines may offer therapeutic strategies.
- Further research is needed to fully understand and treat this lethal condition.