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Published in: Journal of Translational Medicine 1/2018

Open Access 01-12-2018 | Research

Telomerase promoter mutations in human immunodeficiency virus-related conjunctiva neoplasia

Authors: Noemy Starita, Luigi Buonaguro, Franco M. Buonaguro, Maria Lina Tornesello

Published in: Journal of Translational Medicine | Issue 1/2018

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Abstract

Background

Squamous cell carcinoma (SCC) of the conjunctiva is a common cancer in Africa mainly associated with solar ultraviolet (UV) exposure and human immunodeficiency virus (HIV) infection. We analyzed the role of HIV on the occurrence of telomerase reverse transcriptase (TERT) promoter mutations among a cohort of conjunctiva neoplasia Ugandan patients.

Methods

Telomerase reverse transcriptase promoter mutations were searched in 72 conjunctiva neoplasia cases, comprising SCC and intraepithelial neoplasia grade 1–3 (CIN1–3), as well as in 53 conjunctiva normal tissues and in 24 HIV-related Kaposi sarcoma.

Results

The average prevalence of TERT promoter mutations in conjunctiva neoplasia was 31.9%. The mutation rates were significantly higher in HIV-positive (31.8% of CIN1 and CIN2, 46.2% of CIN3 and SCC,) than HIV-negative patients (22.2% of CIN1 and CIN2, 13.3% of CIN3 and SCC). Such mutations were rarely identified among HIV-positive conjunctiva controls (3.6%) and never in Kaposi sarcoma lesions. The most frequent variations were the hot spots − 124G>A and − 146G>A and tandem transitions − 124_125GG>AA and − 138_139GG>AA.

Conclusions

Telomerase reverse transcriptase promoter mutations are early events in conjunctival neoplasia and could be used for timely diagnosis of conjunctiva tumours. The high frequency of UV-signatures in HIV-positive conjunctiva lesions suggests an additive effect of the virus to UV-related mutagenesis.
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Metadata
Title
Telomerase promoter mutations in human immunodeficiency virus-related conjunctiva neoplasia
Authors
Noemy Starita
Luigi Buonaguro
Franco M. Buonaguro
Maria Lina Tornesello
Publication date
01-12-2018
Publisher
BioMed Central
Published in
Journal of Translational Medicine / Issue 1/2018
Electronic ISSN: 1479-5876
DOI
https://doi.org/10.1186/s12967-018-1456-0

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