ArticlePloS one2024
TPP1 is associated with risk of advanced precursors and cervical cancer survival.
Article in PloS one, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Review
- Shelterin Component TPP1 Drives Tumor Progression and Predicts Poor Prognosis in Hepatocellular Carcinoma.Biomedicines · 2026Article
- Telomere-driven dysfunctional changes in gynecological cancers: mechanistic insights, biomarker potential, and therapeutic targeting.Frontiers in cell and developmental biology · 2026Review
- Targeting Telomere Shelterin Protein TPP1 with Elbasvir: Induction of Autophagy and Suppression of Esophageal Cancer Tumorigenesis.Anti-cancer agents in medicinal chemistry · 2026Article
- Telomeres, telomerase, and cancer: mechanisms, biomarkers, and therapeutics.Experimental hematology & oncology · 2025Review
- A novel gene signature based on endoplasmic reticulum stress for predicting prognosis in hepatocellular carcinoma.Translational cancer research · 2024Article
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Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
It is unclear how telomere-binding protein TPP1 interacts with human telomerase reverse transcriptase (hTERT) and influences cervical cancer development and progression. This study included all eligible 156 cervical cancers diagnosed during 2003-2008 and followed up through 2014, 102 cervical intraepithelial neoplasia (CIN) patients, and 16 participants with normal cervix identified at the same period. Correlation of expression of TPP1 and hTERT in these lesions was assessed using Kappa statistics. TPP1 was knocked down by siRNA in three cervical cancer cell lines. We assessed mRNA expression using quantitative real-time polymerase chain reaction and protein expression using tissue microarray-based immunohistochemical staining. We further analyzed the impact of TPP1 expression on the overall survival of cervical cancer patients by calculating the hazard ratio (HR) with 95% confidence intervals (CIs) using the multivariable-adjusted Cox regression model. Compared to the normal cervix, high TPP1expression was significantly associated with CIN 3 and cervical cancers (P<0.001 for both). Expressions of TPP1 and hTERT were highly correlated in CIN 3 (Kappa statistics = 0.50, P = 0.005), squamous cell carcinoma (Kappa statistics = 0.22, P = 0.011), and adenocarcinoma/adenosquamous carcinoma (Kappa statistics = 0.77, P = 0.001). Mechanistically, knockdown of TPP1 inhibited the expression of hTERT in both mRNA and protein levels. High expression of TPP1 (HR = 2.61, 95% CI 1.23-5.51) and co-high expression of TPP1 and hTERT (HR = 2.38, 95% CI 1.28-4.43) were independently associated with worse survival in cervical cancer patients. TPP1 and hTERT expression was correlated and high expression of TPP1 was associated with high risk of CIN 3 and cervical cancer and could predict a worse survival in cervical cancer.
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