Adenovirus-mediated transfer of HPV 16 E6/E7 antisense RNA combined with cisplatin inhibits cellular growth and induces apoptosis in HPV-positive head and neck cancer cells
Human papillomavirus (HPV) infection has been identified as an etiologic factor of head and neck cancers (HNCs). We explored the potential use of antisense HPV RNA transcripts for gene therapy and its effect in combination with cisplatin (CDDP) for HPV-positive HNCs. We introduced the antisense RNA transcripts of the E6 and E7 genes of HPV type 16 into UM-SCC-47 cells harboring HPV 16 and YCU-T892 cells that were HPV-negative using a recombinant adenoviral vector, Ad-E6/E7-AS. We then analyzed the effects of the introduction of Ad-E7-AS on cell and tumor growth and the synergistic effect with CDDP in vitro and in vivo. After infection of Ad-E6/E7-AS, the cellular growth of UM-SCC-47 cells were suppressed, but not that of YCU-T892 cells. E7 protein expression was suppressed, and p53 and pRb protein expression increased after infection of Ad-E7-AS. Cell growth and tumorigenicity were greatly suppressed in combination with CDDP compared with Ad-E7-AS or CDDP treatment alone in vitro. Ad-E7-AS combined with CDDP treatment significantly reduced the volumes of established subcutaneous tumors. Transfection with HPV 16 E7 antisense RNA combined with CDDP treatment might be a potentially useful approach to the therapy of HPV 16-positive HNC.
Response to 'Evolving M-protein pattern in patients with smoldering multiple myeloma: impact on early progression'
Response to 'Evolving M-protein pattern in patients with smoldering multiple myeloma: impact on early progression', Published online: 25 May 2018; doi:10.1038/s41375-018-0155- ... more
Coppery inks paint an underwater rainbow
Coppery inks paint an underwater rainbow, Published online: 25 May 2018; doi:10.1038/d41586-018-05282-y
Inexpensive version of luminescent pigment shrugs off water. more
Previous studies suggested that MeCP2 competes with linker histone H1, but this hypothesis has never been tested in vivo. Here, we performed chromatin immunoprecipitation followed by sequencing (ChIP-seq) of Flag-tagged-H1.0 in mouse forebrain excitatory neurons. Unexpectedly, Flag-H1.0 and ... more
Olympus Microscopy has partnered with the Nature Publishing Group to present the Neurotechniques Collection. This compilation of articles will draw together some of the groundbreaking research that has recently been published in Nature Reviews Neuroscience and Nature Methods. Sponsored by O ... more