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Human papillomaviru...
Human papillomavirus, viral load and proliferation rate in recurrent respiratory papillomatosis in response to alpha interferon treatment
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Szeps, M (författare)
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- Dahlgren, L (författare)
- Karolinska Institutet
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Aaltonen, LM (författare)
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Ohd, J (författare)
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Kanter-Lewenshon, L (författare)
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- Dahlstrand, H (författare)
- Karolinska Institutet
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- Munck-Wikland, E (författare)
- Karolinska Institutet
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- Grander, D (författare)
- Karolinska Institutet
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- Dalianis, T (författare)
- Karolinska Institutet
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(creator_code:org_t)
- Microbiology Society, 2005
- 2005
- Engelska.
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Ingår i: The Journal of general virology. - : Microbiology Society. - 0022-1317 .- 1465-2099. ; 86:Pt 6, s. 1695-1702
- Relaterad länk:
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http://kipublication...
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https://doi.org/10.1...
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Abstract
Ämnesord
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- The aim of this study was to identify recurrent respiratory papillomatosis patients who may benefit from interferon (IFN)-α treatment and to determine the means of IFN-α action. The presence of human papillomavirus (HPV) and viral load and proliferation rate in pre-, ongoing and post-treatment respiratory papillomatosis biopsies were examined retrospectively in 25 patients, 18 of whom were IFN-α treated and seven of whom were IFN-α non-treated. Using PCR, HPV was found to be present in 20/25 respiratory papillomatosis patients and HPV type was determined for 18/25 patients (12 HPV6 and six HPV11). Eighteen of the patients were treated with IFN-α, 14 of whom were HPV positive (eight HPV6, five HPV11 and one undefined HPV). Response to IFN-α therapy was observed in 12 patients (7/8 HPV6, 3/5 HPV11, 1/1 undefined HPV and 1/4 HPV negative), while six patients (1/8 HPV6, 2/5 HPV11 and 3/4 HPV negative) did not respond to therapy. Viral load, determined by quantitative real-time PCR (between 0·03 and 533 HPV copies per cell), and proliferation rate, determined as the percentage of Ki-67-positive cells (between 8 and 54 %), were similar in IFN-α-treated and non-treated patients and were generally unaffected by IFN-α treatment. In summary, most (12/18) IFN-α-treated patients responded to therapy. Moreover, there was a tendency for patients with HPV6-positive (7/8) respiratory papillomatosis to respond more frequently to IFN-α therapy than patients with HPV11 (3/5) or HPV-negative (1/4) respiratory papillomatosis. Finally, the presence of HPV and viral load and proliferation in respiratory papillomatosis biopsies was similar in patients treated or not with IFN-α and were in general unaffected by IFN-α treatment.
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