Parthenolide induces apoptosis and lytic cytotoxicity in Epstein-Barr virus-positive Burkitt lymphoma
Burkitt lymphoma (BL) has been reported to be strongly associated with Epstein-Barr virus (EBV) infection. The fact that EBV is generally present in cancer cells but rarely found in healthy cells represents an opportunity for targeted cancer therapy. One approach is to activate the
lytic replication cycle of the latent EBV. Nuclear factor (NF)-κB is thought to play an essential role in EBV lytic infection. Elevated NF-κB levels inhibit EBV lytic replication. Parthenolide (PN) is a sesquiterpene lactone found in medicinal plants, particularly in feverfew (Tanacetum
parthenium). The aim of the present study was to analyze the effect of PN on the survival of Raji EBV-positive lymphoma cells. Raji cells were treated with 0, 4 or 6 µmol/l PN for 48 h. MTT assay and western blot analysis were performed to evaluate the findings. Results showd that
PN suppressed the growth of the EBV-positive BL cell line, Raji, and activated the transcription of BZLF1 and BRLF1 by inhibiting NF-κB activity. Most notably, when PN was used in combination with ganciclovir (GCV), the cytotoxic effect of PN was amplified. These data suggest that the
induction of lytic EBV infection with PN in combination with GCV may be a viraltargeted therapy for EBV-associated BL.
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Document Type: Research Article
Department of Hematology, Zhongshan Hospital, Xiamen University, Fujian Medical University Clinic Teaching Hospital, Xiamen 361004, P.R. China
Department of Emergency Surgery, Zhongshan Hospital, Xiamen University, Fujian Medical University Clinic Teaching Hospital, Xiamen 361004, P.R. China
Central Laboratory, Zhongshan Hospital, Xiamen University, Fujian Medical University Clinic Teaching Hospital, Xiamen 361004, P.R. China
Publication date: September 1, 2012
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Molecular Medicine Reports is a monthly, peer-reviewed journal available in print and online, that includes studies devoted to molecular medicine, underscoring aspects including pharmacology, pathology, genetics, neurosciences, infectious diseases, molecular cardiology and molecular surgery. In vitro and in vivo studies of experimental model systems pertaining to the mechanisms of a variety of diseases offer researchers the necessary tools and knowledge with which to aid the diagnosis and treatment of human diseases.
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