Trial reportBrazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologica2017
Radiotherapy modulates expression of EGFR, ERCC1 and p53 in cervical cancer.
Trial report in Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologica, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
14 citing papers in PubMed, 1 synthesis or guideline pooled it, 24 citations in OpenAlex.
- Molecular Biomarkers of Radiosensitivity and Radioresistance in Cervical Cancer: A Systematic Review.International journal of molecular sciences · 2026Pooled it
- FBXO5 drives hepatocellular carcinoma progression and is a target for tea polyphenol-mediated inhibition.Translational cancer research · 2025Article
- Neoadjuvant Therapies Do Not Reduce Epidermal Growth Factor Receptor (EGFR) Expression or EGFR-Targeted Fluorescence in a Murine Model of Soft-Tissue Sarcomas.Molecular imaging and biology · 2024Article
- Review of possible mechanisms of radiotherapy resistance in cervical cancer.Frontiers in oncology · 2023Review
- p53 Modulates Radiosensitivity in Head and Neck Cancers-From Classic to Future Horizons.Diagnostics (Basel, Switzerland) · 2022Review
- Article
- Perspectives of ERCC1 in early-stage and advanced cervical cancer: From experiments to clinical applications.Frontiers in immunology · 2022Review
- A systematic review and meta-analysis of the prevalence of therapeutic targets in cervical cancer.Ecancermedicalscience · 2021Review
- Nimotuzumab Combined With Irradiation Enhances the Inhibition to the HPV16 E6-Promoted Growth of Cervical Squamous Cell Carcinoma.Frontiers in oncology · 2020Article
- Interplay Between EGFR and the Platelet-Activating Factor/PAF Receptor Signaling Axis Mediates Aggressive Behavior of Cervical Cancer.Frontiers in oncology · 2020Article
- MiRNAs in Radiotherapy Resistance of Nasopharyngeal Carcinoma.Journal of Cancer · 2020Review
- The role of autophagy and Beclin-1 in radiotherapy-induced apoptosis in thyroid carcinoma cells.International journal of clinical and experimental pathology · 2019Article
- Positive crosstalk between EGFR and the TF-PAR2 pathway mediates resistance to cisplatin and poor survival in cervical cancer.Oncotarget · 2018Article
- Elucidating the role of excision repair cross-complement group 1 in oral epithelial dysplasia and early invasive squamous cell carcinoma: An immunohistochemical study.Journal of oral and maxillofacial pathology : JOMFPArticle
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
11 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Cervical cancer is a public health problem and the molecular mechanisms underlying radioresistance are still poorly understood. Here, we evaluated the modulation of key molecules involved in cell proliferation, cell cycle and DNA repair in cervical cancer cell lines (CASKI and C33A) and in malignant tissues biopsied from 10 patients before and after radiotherapy. The expression patterns of epidermal growth factor receptor (EGFR), excision repair cross-complementation group 1 (ERCC1) and p53 were evaluated in cancer cell lines by quantitative PCR and western blotting, and in human malignant tissues by immunohistochemistry. The mutation status of TP53 gene was evaluated by direct sequencing. Among cell lines, absent or weak modulations of EGFR, ERCC1 and p53 were observed after exposure to 1.8 Gy. Conversely, increased expressions of p53 (5/10 patients; P=0.0239), ERCC1 (5/10 patients; P=0.0294) and EGFR (4/10 patients; P=0.1773) were observed in malignant tissues after radiotherapy with the same radiation dose. TP53 mutations were found only in one patient. Here we show that a single dose of radiotherapy induced EGFR, ERCC1 and p53 expression in malignant tissues from cervical cancer patients but not in cancer cell lines, highlighting the gap between in vitro and in vivo experimental models. Studies on larger patient cohorts are needed to allow an interpretation that an upregulation of p53, EGFR and ERCC1 may be part of a radioresistance mechanism.
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What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.