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Published on: April 9, 2013
NF-kappaB and NOS may play a role in human RPMI-8402 cell apoptosis
Oriana Trubiani1, Eleonora Salvolini, Arianna Vignini
1Dipartimento di Scienze Odontostomatologiche, Università di Chieti-Pescara, Via Dei Vestini, 35, 66100 Chieti, Italy.
Abstract:
Apoptosis is a fundamental process that is required for the normal development and functioning of the immune system. It can be induced in different ways depending on cell type and acquired signal. Since the NF-kappaB transcription factor complex is believed to be involved in nitric oxide-induced apoptosis, the aim of this study was to investigate NF-kappaB and nitric oxide synthase (NOS) activity during dimethyl sulphoxide (DMSO)-dependent cell death of RPMI-8402 human pre-T cells. Our results show that NF-kappaB activation is associated with a significant up-regulation of NOS activity and induction of apoptosis. Furthermore, the inhibition and reversal of these effects by parthenolide treatment or DMSO removal indicate that these molecules are directly involved in the progression of cell death.
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