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Chromosomal instability is a hallmark of cancer and correlates with the presence of extra centrosomes, which originate from centriole overduplication. Overduplicated centrioles lead to the formation of centriole rosettes, which mature into supernumerary centrosomes in the subsequent cell cycle. While extra centrosomes promote chromosome missegregation by clustering into pseudo-bipolar spindles, the...
Human papillomaviruses (HPV) are small double-stranded DNA viruses that replicate as low copy number nuclear plasmids during the persistent phase. HPV only possess nine open reading frames but extend their coding capabilities by alternative RNA splicing. We have identified in cell lines with replicating HPV31 genomes viral transcripts that connect the novel splice donor (SD) sites at nt 1426 and 1534...
Persistent infections with human papillomaviruses type 18 can result in the development of cervical cancer. HPV18 genomes persist extrachromosomally in low-grade and precancerous lesions but are always integrated in cervical cancers, and this might contribute to the progression of HPV18-induced lesions. To address whether integration induces additional changes in host cells, several keratinocyte lines...
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