Journal
JOURNAL OF CANCER RESEARCH AND CLINICAL ONCOLOGY
Volume 147, Issue 10, Pages 3011-3023Publisher
SPRINGER
DOI: 10.1007/s00432-021-03738-9
Keywords
Human papillomavirus; Infection; Esophageal cancer; Squamous; Risk; Meta-analysis
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The study found that HPV-16/18 can be detected in approximately 1 in 5 cases of ESCC, with varying prevalences worldwide. HPV infection is moderately but significantly associated with a diagnosis of ESCC. Further epidemiological studies are needed to confirm and expand the current knowledge on this topic.
Objective The human papillomavirus (HPV) is implicated in the pathogenesis of several cancers among humans. The role of HPV as one of the etiological agents in esophageal carcinogenesis is partially unknown. We assessed whether the available evidence supports the association of HPV with risk and prognosis in patients with esophageal squamous cell carcinomas (ESCCs). Design For this systematic review and meta-analysis, PubMed, Embase, Cochrane Library, and SCOPUS were searched up to February 2021. The included studies were prospective or retrospective studies that evaluated the incidence, risk, and prognosis of HPV-16/18-related ESCCs in adult subjects. The primary outcome was the incidence rate of ESCC in HPV-16/18 carriers. Secondary outcomes included the risk of ESCCs compared with healthy HPV-16/18 carriers (expressed as odds ratios [ORs] with 95% confidence intervals [CIs]) and the survival of HPV + versus HPV- ESCCs. Results The search identified 1649 unique citations, of which 145 met the inclusion criteria and were included in the pooled analysis (16,484 patients). The pooled HPV prevalence in ESCCs was 18.2% (95% CI 15.2-21.6%; P < 0.001). A significantly increased ESCC risk was associated with HPV infection (OR = 3.81; 95% CI 2.84-5.11; P < 0.001). Main limitation were methods of HPV detection (DNA only), race of populations included (mainly Asiatic countries) and lack of adjustment for other prognostic factors. Conclusions The findings suggest that HPV-16/18 is detectable in about 1 on 5 cases of ESCC with different prevalences across the world. It is moderately but significantly associated with a diagnosis of ESCC. Further epidemiological studies are needed to confirm and increase the current knowledge of the subject.
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