Pathogenesis of human papillomavirus-associated mucosal disease

Groves, Ian J.; Coleman, Nicholas

doi:10.1002/path.4496

Cited by 140 publications

(135 citation statements)

References 143 publications

(185 reference statements)

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“…40,41 We anticipate that the association of β- and γ-HPVs with HNSCC might be more similar to the elusive role these types play in skin cancer. 42,43 Howley and Pfister 43 report that β-E6 and β-E7 proteins can influence DNA damage and apoptotic processes and inactivate pRB proteins, respectively.…”

Section: Resultsmentioning

confidence: 99%

Associations of Oral α-, β-, and γ-Human Papillomavirus Types With Risk of Incident Head and Neck Cancer

et al. 2016

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IMPORTANCE Prospective studies are needed to examine the temporal relationship between oral human papillomavirus (HPV) detection and risk of head and neck squamous cell carcinoma (HNSCC). Moreover, the oral cavity contains a wide spectrum of α-, β-, and γ- HPV types, but their association with risk of HNSCC is unknown. OBJECTIVE To prospectively examine associations between α-, β-, and γ-HPV detection in the oral cavity and incident HNSCC. DESIGN A nested case-control study was carried out among 96 650 participants, cancer free at baseline, with available mouthwash samples in 2 prospective cohort studies: (1) the American Cancer Society Cancer Prevention Study II Nutrition Cohort and (2) the Prostate, Lung, Colorectal, and Ovarian Cancer Screening Trial. Incident cases of HNSCC (n = 132) were identified duringan average 3.9 years of follow-up in both cohorts. Three controls per case (n = 396) were selected through incidence density sampling and matched on age, sex, race/ethnicity, and time since mouthwash collection. METHODS Through a next-generation sequencing assay, DNA from α-, β-, and γ-HPV types were detected. Conditional logistic regression models were used to estimate odds ratios (ORs) and 95% CIs, adjusting for smoking history, alcohol consumption, and detection of HPV-16 for β- and γ-HPVs. MAIN OUTCOMES AND MEASURES Incident HNSCC, which includes cancers of the oropharynx, oral cavity, and larynx. RESULTS A total of 132 participants developed HNSCC during the follow-up period (103 men and 29 women; average age at baseline, 66.5 years). Oral HPV-16 detection was associated with incident HNSCC (OR, 7.1; 95% CI, 2.2–22.6), with positive association for oropharyngeal SCC (OR, 22.4; 95% CI, 1.8–276.7), but not for oral cavity (OR, 4.5; 95% CI, 0.6–34.7) or laryngeal SCCs (OR, 0.11; 95% CI, 0.01–834.80). Detection of β1-HPV-5 and β2-HPV-38 types, as well as γ-11 and γ-12 species, had ORs for HNSCC that ranged from 2.64 to 5.45 (P < .01 for all comparisons). Detection of β1-HPV-5 type was associated with oropharyngeal (OR, 7.42; 95% CI, 0.98–56.82; P = .054), oral cavity (OR, 5.34; 95% CI, 1.51–18.80; P = .01), and laryngeal SCCs (OR, 2.71; 95% CI, 1.00–7.43; P = .05), whereas γ11- and γ12-HPV species were associated with both oral cavity (OR, 7.47; 95% CI, 1.21–46.17; P = .03; and OR, 6.71; 95% CI, 1.47–30.75; P = .01, respectively) and laryngeal SCCs (OR, 7.49; 95% CI, 1.10–51.04; P = .04 and OR, 5.31; 95% CI, 1.13–24.95; P = .03, respectively). CONCLUSIONS AND RELEVANCE This study demonstrates that HPV-16 detection precedes the incidence of oropharyngeal SCC. Associations of other HPVs, including γ11- and γ12-HPV species and β1-HPV-5 type suggest a broader role for HPVs in HNSCC etiology.

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Section: Resultsmentioning

confidence: 99%

Associations of Oral α-, β-, and γ-Human Papillomavirus Types With Risk of Incident Head and Neck Cancer

et al. 2016

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“…HPV virions can be released as a result of degeneration of the infected exfoliated host cells. In productive infection, HPV DNA can therefore be measured inside as well as outside host cells (20). This has important implications for laboratory testing.…”

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confidence: 99%

Human Papillomavirus Laboratory Testing: the Changing Paradigm

2016

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SUMMARYHigh-risk human papillomaviruses (HPVs) cause essentially all cervical cancers, most anal and oropharyngeal cancers, and some vaginal, vulvar, and penile cancers. Improved understanding of the pathogenesis of infection and the availability of newer tests are changing the approach to screening and diagnosis. Molecular tests to detect DNA from the most common high-risk HPVs are FDA approved for use in conjunction with cytology in cervical cancer screening programs. More-specific tests that detect RNA from high-risk HPV types are now also available. The use of molecular tests as the primary screening tests is being adopted in some areas. Genotyping to identify HPV16 and -18 has a recommended role in triaging patients for colposcopy who are high-risk HPV positive but have normal cytology. There are currently no recommended screening methods for anal, vulvar, vaginal, penile, or oropharyngeal HPV infections. HPV testing has limited utility in patients at high risk for anal cancer, but p16 immunohistochemistry is recommended to clarify lesions in tissue biopsy specimens that show moderate dysplasia or precancer mimics. HPV testing is recommended for oropharyngeal squamous cell tumors as a prognostic indicator. Ongoing research will help to improve the content of future guidelines for screening and diagnostic testing.

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“…Initial infection is within basal epithelial cells where the episomal viral genome is maintained at around 50 to 100 nuclear copies (3). Differentiation of infected epithelial cells leads to activation of early and then late gene expression (4).…”

mentioning

confidence: 99%

Human Papillomavirus E2 Regulates SRSF3 (SRp20) To Promote Capsid Protein Expression in Infected Differentiated Keratinocytes

Klymenko

Hernandez-Lopez

MacDonald

et al. 2016

J Virol

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The human papillomavirus (HPV) life cycle is tightly linked to differentiation of the infected epithelial cell, suggesting a sophisticated interplay between host cell metabolism and virus replication. Previously, we demonstrated in differentiated keratinocytes in vitro and in vivo that HPV type 16 (HPV16) infection caused increased levels of the cellular SR splicing factors (SRSFs) SRSF1 (ASF/SF2), SRSF2 (SC35), and SRSF3 (SRp20). Moreover, the viral E2 transcription and replication factor that is expressed at high levels in differentiating keratinocytes could bind and control activity of the SRSF1 gene promoter. Here, we show that the E2 proteins of HPV16 and HPV31 control the expression of SRSFs 1, 2, and 3 in a differentiation-dependent manner. E2 has the greatest transactivation effect on expression of SRSF3. Small interfering RNA depletion experiments in two different models of the HPV16 life cycle (W12E and NIKS16) and one model of the HPV31 life cycle (CIN612-9E) revealed that only SRSF3 contributed significantly to regulation of late events in the virus life cycle. Increased levels of SRSF3 are required for L1 mRNA and capsid protein expression. Capsid protein expression was regulated specifically by SRSF3 and appeared independent of other SRSFs. Taken together, these data suggest a significant role of the HPV E2 protein in regulating late events in the HPV life cycle through transcriptional regulation of SRSF3 expression. IMPORTANCEHuman papillomavirus replication is accomplished in concert with differentiation of the infected epithelium. Virus capsid protein expression is confined to the upper epithelial layers so as to avoid immune detection. In this study, we demonstrate that the viral E2 transcription factor activates the promoter of the cellular SRSF3 RNA processing factor. SRSF3 is required for expression of the E4^L1 mRNA and so controls expression of the HPV L1 capsid protein. Thus, we reveal a new dimension of virus-host interaction crucial for production of infectious virus. SRSF proteins are known drug targets. Therefore, this study provides an excellent basis for developing strategies to regulate capsid protein production in the infected epithelium and the production of new virions.

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Pathogenesis of human papillomavirus-associated mucosal disease

Cited by 140 publications

References 143 publications

Associations of Oral α-, β-, and γ-Human Papillomavirus Types With Risk of Incident Head and Neck Cancer

Associations of Oral α-, β-, and γ-Human Papillomavirus Types With Risk of Incident Head and Neck Cancer

Human Papillomavirus Laboratory Testing: the Changing Paradigm

Human Papillomavirus E2 Regulates SRSF3 (SRp20) To Promote Capsid Protein Expression in Infected Differentiated Keratinocytes

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