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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Antiblastic chemotherapy drugs up-modulate interferon-gamma receptor expression on human malignant T cells.

We have previously shown that the contrasting ability of interferon-gamma (IFN-gamma) either to stimulate the proliferation of malignant T cells or to induce their apoptosis is determined by the low and high intensity of IFN-gamma receptor (IFN-gamma R) expression, respectively. High IFN-gamma R expression is a marker for the T cell stress that precedes apoptosis. In this paper, we show that a 12- to 24-h culture of three human malignant T-cell lines displaying distinct differentiation stages ( ST4, PF382, and Jurkat) in medium supplemented with four chemotherapy drugs (etoposide, cisplatin, cytarabine, and daunomycin) up-modulates their IFN-gamma R expression followed by their apoptosis after 24-48 h later. Increased IFN-gamma R expression (by at least an order of magnitude) was observed in 30 to 90% of cells during exposure to pharmacologic drug concentrations. Timely combination of chemotherapy drugs with IFN-gamma may thus provide a more effective way of inhibiting the progress of human malignant T cells through synergistic induction of their apoptosis.[1]

References

  1. Antiblastic chemotherapy drugs up-modulate interferon-gamma receptor expression on human malignant T cells. Novelli, F., Allione, A., Bernabei, P., Rigamonti, L., Forni, G. Cancer Detect. Prev. (1997) [Pubmed]
 
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