Effects of Interferon on Leukaemia Cells
Author Information
Author(s): A.Z.S. Rohatiner
Primary Institution: ICRF Department of Medical Oncology, St. Bartholomew's Hospital, London, UK
Hypothesis
Can high doses of human lymphoblastoid Interferon inhibit the growth of myeloblasts in patients with acute myelogenous leukaemia?
Conclusion
Interferon has a dose-dependent growth inhibitory effect on human leukaemic myeloblasts, but higher serum levels are required for any significant clinical response.
Supporting Evidence
- Interferon decreased the number of viable cells in all samples.
- 50% inhibition was observed at Interferon concentrations of 103 units/ml in most samples.
- Patients with serum levels > 103 units/ml showed some indication of response.
Takeaway
Interferon can help slow down the growth of leukaemia cells, but it needs to be given in high enough amounts to work.
Methodology
Myeloblasts from patients were cultured with different concentrations of Interferon to assess growth inhibition.
Limitations
Higher concentrations of Interferon may cause intolerable toxicity, limiting its use in primary therapy.
Participant Demographics
23 patients with acute myelogenous leukaemia, 19 in relapse and 4 who failed to achieve remission.
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