Bernard L. Mirkin

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BACKGROUND The transcription factor Stat3 has been reported to play a key role in protecting cells against apoptosis by up-regulating expression of the anti-apoptotic gene BCl-xL. This investigation analyzes the relationship between the development of resistance to doxorubicin-mediated apoptosis in neuroblastoma cells (SKN-SH) and activation of the Stat3(More)
Previous studies showed that nerve growth factor (NGF) decreases the proliferation of neuroectodermal tumor (NET) cells (C-1300 and Neuro2A murine neuroblastoma, PC12 rat pheochromocytoma) within 5-7 days in a dose-dependent manner. This effect is regulated by the concentration of serum in the culture medium. Therefore, we hypothesized that NGF exerts its(More)
Several unique biological features of HIV-1 Vpr make it a potentially powerful agent for anti-cancer therapy. First, Vpr inhibits cell proliferation by induction of cell cycle G2 arrest. Second, it induces apoptosis through multiple mechanisms, which could be significant as it may be able to overcome apoptotic resistance exhibited by many cancerous cells,(More)
The response of wild-type and genetically engineered neuroectodermal tumor (NET) cells to exogenous and endogenously synthesized nerve growth factor (NGF) was investigated. Differences in cell proliferation rate, neurite formation, and expression of NGF binding sites were quantitatively determined. Ecotropic retroviral vectors were used to transfer the(More)
The in situ C-1300 murine neuroblastoma (MNB) tumor model was used to investigate the influence of exogenously administered nerve growth factor (NGF) on tumor growth and tissue catecholamine concentration in mice sympathectomized with 6-hydroxy-dopamine (6-OHDA) on postnatal days 4-10. Mice were implanted with 1 x 10(6) disaggregated MNB cells 3 days after(More)
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