Interferon α extends the survival of human myeloma cells through an upregulation of the Mcl‐1 anti‐apoptotic molecule

We have recently reported that Mcl‐1, an anti‐apoptotic member of the Bcl‐2 family, is upregulated by interleukin (IL)‐6 in human myeloma cells through the janus kinase/signal transducers and activators of transduction (JAK/STAT) pathway. In the current study, we have explored the effects of interfe...

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Veröffentlicht in:British journal of haematology 2001-02, Vol.112 (2), p.358-363
Hauptverfasser: Puthier, Denis, Thabard, Wilfrid, Rapp, Marie‐José, Etrillard, Marguerite, Harousseau, Jean‐Luc, Bataille, Régis, Amiot, Martine
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container_end_page 363
container_issue 2
container_start_page 358
container_title British journal of haematology
container_volume 112
creator Puthier, Denis
Thabard, Wilfrid
Rapp, Marie‐José
Etrillard, Marguerite
Harousseau, Jean‐Luc
Bataille, Régis
Amiot, Martine
description We have recently reported that Mcl‐1, an anti‐apoptotic member of the Bcl‐2 family, is upregulated by interleukin (IL)‐6 in human myeloma cells through the janus kinase/signal transducers and activators of transduction (JAK/STAT) pathway. In the current study, we have explored the effects of interferon (IFN)‐α, a cytokine which has been shown to increase myeloma cell survival. Our results demonstrate that IFN‐α potently upregulates Mcl‐1 on both myeloma cell lines and purified native myeloma cells. Of note, this upregulation is not due to an induction of an IL‐6 autocrine loop. Furthermore, we showed that IL‐6 and IFN‐α had no additive effect on Mcl‐1 upregulation, suggesting that both cytokines act through a common mechanism. Finally, the analysis of signalling transduction pathways strongly suggests that Mcl‐1 upregulation induced by IFN‐α depends on STAT3 activation. Altogether, our data show that IFN‐α has an IL‐6‐like effect on human myeloma cells and suggest that it could be deleterious in some patients.
doi_str_mv 10.1046/j.1365-2141.2001.02575.x
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In the current study, we have explored the effects of interferon (IFN)‐α, a cytokine which has been shown to increase myeloma cell survival. Our results demonstrate that IFN‐α potently upregulates Mcl‐1 on both myeloma cell lines and purified native myeloma cells. Of note, this upregulation is not due to an induction of an IL‐6 autocrine loop. Furthermore, we showed that IL‐6 and IFN‐α had no additive effect on Mcl‐1 upregulation, suggesting that both cytokines act through a common mechanism. Finally, the analysis of signalling transduction pathways strongly suggests that Mcl‐1 upregulation induced by IFN‐α depends on STAT3 activation. 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subjects Antineoplastic agents
Apoptosis
Biological and medical sciences
Chemotherapy
DNA-Binding Proteins - metabolism
Humans
IFN‐α
IL‐6
Interferon-alpha - pharmacology
Interleukin-6 - metabolism
Mcl‐1
Medical sciences
multiple myeloma
Multiple Myeloma - metabolism
Myeloid Cell Leukemia Sequence 1 Protein
Neoplasm Proteins - metabolism
Pharmacology. Drug treatments
Proto-Oncogene Proteins c-bcl-2
Signal Transduction
STAT3
STAT3 Transcription Factor
Trans-Activators - metabolism
Tumor Cells, Cultured
title Interferon α extends the survival of human myeloma cells through an upregulation of the Mcl‐1 anti‐apoptotic molecule
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