How Tumor Cells Affect Human Monocytes
Author Information
Author(s): Mytar B, Siedlar M, Woloszyn M, Ruggiero I, Pryjma J, Zembala M
Primary Institution: Department of Clinical Immunology, Polish–American Institute of Paediatrics, Jagiellonian University Medical College
Hypothesis
Can human monocytes produce reactive oxygen intermediates when stimulated by tumor cells?
Conclusion
Human monocytes can be stimulated by tumor cells to produce reactive oxygen intermediates, which play a role in their cytotoxicity towards cancer cells.
Supporting Evidence
- Monocytes generated oxygen radicals after stimulation with tumor cells.
- The chemiluminescent response of monocytes was dependent on superoxide anion and hydroxyl radical production.
- Spontaneous monocyte-mediated cytotoxicity was inhibited by specific scavengers and inhibitors.
Takeaway
When tumor cells touch human immune cells called monocytes, these immune cells can create substances that help kill cancer cells.
Methodology
The study measured reactive oxygen intermediates produced by monocytes after contact with tumor cells using chemiluminescence and various inhibitors.
Digital Object Identifier (DOI)
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