Ines Fathallah - Academia.edu (original) (raw)
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Papers by Ines Fathallah
Journal of Virology, 2011
We have previously reported that cutaneous human papillomavirus type 38 (HPV38) displays transfor... more We have previously reported that cutaneous human papillomavirus type 38 (HPV38) displays transforming properties in in vitro and in vivo experimental models. However, the involvement of NF-B signaling in HPV38-induced cell growth transformation remains to be determined. In this study, we showed that HPV38 E6 and E7 activate NF-B and that inhibition of the pathway with the IB␣ superrepressor sensitizes HPV38E6E7-immortalized human keratinocytes to tumor necrosis factor alpha (TNF-␣)-and UVB radiationmediated apoptosis. Accordingly, inhibition of NF-B signaling resulted in the downregulation of NF-Bregulated antiapoptotic genes, including cIAP1, cIAP2, and xIAP genes. These findings demonstrate a critical role of NF-B activity in the survival of HPV38E6E7-immortalized human keratinocytes exposed to cytokine or UV radiation. Our data provide additional evidence for cooperation between beta HPV infection and UV irradiation in skin carcinogenesis.
The Journal of Immunology, 2010
Journal of Virology, 2011
We have previously reported that cutaneous human papillomavirus type 38 (HPV38) displays transfor... more We have previously reported that cutaneous human papillomavirus type 38 (HPV38) displays transforming properties in in vitro and in vivo experimental models. However, the involvement of NF-B signaling in HPV38-induced cell growth transformation remains to be determined. In this study, we showed that HPV38 E6 and E7 activate NF-B and that inhibition of the pathway with the IB␣ superrepressor sensitizes HPV38E6E7-immortalized human keratinocytes to tumor necrosis factor alpha (TNF-␣)-and UVB radiationmediated apoptosis. Accordingly, inhibition of NF-B signaling resulted in the downregulation of NF-Bregulated antiapoptotic genes, including cIAP1, cIAP2, and xIAP genes. These findings demonstrate a critical role of NF-B activity in the survival of HPV38E6E7-immortalized human keratinocytes exposed to cytokine or UV radiation. Our data provide additional evidence for cooperation between beta HPV infection and UV irradiation in skin carcinogenesis.
The Journal of Immunology, 2010