PMID- 28095444 OWN - NLM STAT- MEDLINE DCOM- 20170818 LR - 20240327 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 12 IP - 1 DP - 2017 TI - The Role of DCT in HPV16 Infection of HaCaTs. PG - e0170158 LID - 10.1371/journal.pone.0170158 [doi] LID - e0170158 AB - Persistent infection with high-risk human papillomavirus (HPV) genotype is a major factor leading to many human cancers. Mechanisms of HPV entry into host cells and genome trafficking towards the nucleus are incompletely understood. Dopachrome tautomerase (DCT) was identified as a cellular gene required for HPV infection in HeLa cells on a siRNA screen study. Here, we confirm that DCT knockdown significantly decreases HPV infection in the human keratinocyte HaCaT cells as was observed in HeLas. We investigated the effects of DCT knockdown and found that DCT depletion caused increased reactive oxygen species (ROS) levels, DNA damage and altered cell cycle in HaCaT cells. We observed increased viral DNA localization at the endoplasmic reticulum but an overall decrease in infection in DCT knockdown cells. This observation suggests that viral DNA might be retained in the ER due to altered cell cycle, and viral particles are incapable of further movement towards the nucleus in DCT knockdown cells. FAU - Aksoy, Pinar AU - Aksoy P AD - Department of Biological Sciences, Fordham University, Bronx, New York, United States of America. FAU - Meneses, Patricio I AU - Meneses PI AD - Department of Biological Sciences, Fordham University, Bronx, New York, United States of America. LA - eng GR - R21 CA153096/CA/NCI NIH HHS/United States PT - Journal Article DEP - 20170117 PL - United States TA - PLoS One JT - PloS one JID - 101285081 RN - 0 (DNA, Viral) RN - 0 (RNA, Small Interfering) RN - 0 (Reactive Oxygen Species) RN - EC 3.4.- (Amyloid Precursor Protein Secretases) RN - EC 5.3.- (Intramolecular Oxidoreductases) RN - EC 5.3.3.12 (dopachrome isomerase) SB - IM MH - Amyloid Precursor Protein Secretases/metabolism MH - Cells, Cultured MH - DNA, Viral/genetics MH - Endoplasmic Reticulum/enzymology/virology MH - Human papillomavirus 16/*enzymology MH - Humans MH - Intramolecular Oxidoreductases/*antagonists & inhibitors/genetics/metabolism MH - Keratinocytes/enzymology/pathology/*virology MH - Papillomavirus Infections/genetics/metabolism/*virology MH - RNA, Small Interfering/*genetics MH - Reactive Oxygen Species/metabolism PMC - PMC5240977 COIS- The authors have declared that no competing interests exist. EDAT- 2017/01/18 06:00 MHDA- 2017/08/19 06:00 PMCR- 2017/01/17 CRDT- 2017/01/18 06:00 PHST- 2016/10/08 00:00 [received] PHST- 2016/12/30 00:00 [accepted] PHST- 2017/01/18 06:00 [entrez] PHST- 2017/01/18 06:00 [pubmed] PHST- 2017/08/19 06:00 [medline] PHST- 2017/01/17 00:00 [pmc-release] AID - PONE-D-16-40131 [pii] AID - 10.1371/journal.pone.0170158 [doi] PST - epublish SO - PLoS One. 2017 Jan 17;12(1):e0170158. doi: 10.1371/journal.pone.0170158. eCollection 2017.