hTERT Protein Expression in Cytoplasm and Nucleus and its Association With HPV Infection in Patients With Cervical Cancer.

Abstract:

BACKGROUND:Few studies have analyzed the association between human telomerase reverse transcriptase (hTERT) protein expression (nuclear and cytoplasmic localization), hTERT methylation status, and human papillomavirus (HPV) genotype infection in cervical cancer. PATIENTS AND METHODS:One hundred seventy-three patients with cervical cancer were analyzed. hTERT protein expression was detected by immunohistochemistry. hTERT DNA methylation analysis was performed using a PCR-RLB-hTERT assay, targeting two regions of the hTERT promoter. Type specific HPV infection was detected by using GP5+/GP6+PCR-RLB. RESULTS:hTERT protein expression was found in both cytoplasm and nucleus (78.0% of the samples showed a cytoplasmic localization and 79.8% had a nuclear localization). A statistically significant association was found between alpha 9 and 7 HPV species with a non-methylation pattern of the hTERT promoter and between these species and high expression of hTERT protein with nuclear localization. CONCLUSION:hTERT protein is found in both the nucleus and cytoplasm of patients with cervical cancer and confirm the relationship between the non-methylated status of hTERT promoter and some HPV species as well as the relationship between these species and hTERT protein expression.

authors

Moreno-Acosta P,Molano M,Morales N,Acosta J,GonzÁlez-Prieto C,Mayorga D,Buitrago L,Gamboa O,MejÍa JC,Castro J,Romero-Rojas A,Espenel S,Murray GL,Garland SM,Vallard A,MagnÉ N

doi

10.21873/cgp.20218

subject

Has Abstract

pub_date

2020-09-01 00:00:00

pages

615-625

issue

5

eissn

1109-6535

issn

1790-6245

pii

17/5/615

journal_volume

17

pub_type

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