ArticleOral oncology2015
Combined TP53 mutation/3p loss correlates with decreased radiosensitivity and increased matrix-metalloproteinase activity in head and neck carcinoma.
Article in Oral oncology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 17 citations in OpenAlex.
- miR-25-3p Modulates Tumor Aggressiveness and Ferroptosis Escape in T24 Bladder Cancer Cells In Vitro.Pharmaceuticals (Basel, Switzerland) · 2025Article
- Matrix Metalloproteinases and Their Inhibitors as Potential Prognostic Biomarkers in Head and Neck Cancer after Radiotherapy.International journal of molecular sciences · 2023Review
- Redirecting extracellular proteases to molecularly guide radiosensitizing drugs to tumors.Biomaterials · 2020Article
- Loss of cell adhesion molecule L1 like promotes tumor growth and metastasis in esophageal squamous cell carcinoma.Oncogene · 2019Article
- Visualization of macrophage recruitment in head and neck carcinoma model using fluorine-19 magnetic resonance imaging.Magnetic resonance in medicine · 2018Article
- Metastatic HPV-related oropharyngeal carcinoma cured with chemoradiotherapy: importance of pretherapy biomolecular assessment.Clinical case reports · 2018Article
- Genetic analysis of radiation-specific biomarkers in sinonasal squamous cell carcinomas.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2016Article
- Genetic and molecular alterations in olfactory neuroblastoma: implications for pathogenesis, prognosis and treatment.Oncotarget · 2016Review
Corrections and comments
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Authors and funding
15 authors at 3 institutions in 1 country.
Funding
Abstract
objectivePatients with head and neck squamous cell carcinoma (HNSCC) containing TP53 mutation and 3p deletion ("double-hit") have poorer prognosis compared to patients with either event alone ("single-hit"). The etiology for worse clinical outcomes in patients with "double-hit" cancers is unclear. We compared radiosensitivity of cell lines containing both TP53 mutations and deletion of Fragile Histidine Triad (FHIT, the gene most commonly associated with 3p deletion) to "single-hit" lines with only TP53 mutation. We compared radiosensitivity in a "single-hit" cell line with TP53 mutation converted to "double-hit" using RNA interference targeting FHIT. Finally, we compared matrixmetalloproteinase-2/9 (MMP-2/9) activity, a previously-established biomarker for tumor aggressiveness, in xenograft tumors derived from these cell lines. MATERIALS/
methodsTP53 mutation and FHIT deletion profiles of HNSCC lines were established using Cancer Cell Line Encyclopedia (CCLE). We used RNA-interference to convert a "single-hit" cell line (SCC4) to "double-hit". Cultured cells were examined for radiosensitivity and cisplatin sensitivity. MMP-2/9 activity was evaluated in "double-hit" versus "single-hit" tumors using ratiometric activatable cell-penetrating peptide (RACPP) in tongue (n=17) and flank xenografts (n=4).
resultsRadiotherapy caused greater double-stranded DNA breaks in "single-hit" vs naturally occurring and engineered "double-hit" cells. In-vivo, "double-hit" xenografts demonstrated higher MMP-2/9 activity compared to "single-hit" xenografts (p<0.01). There was no difference in cisplatin sensitivity between the cell lines.
conclusionsTP53 mutation combined with FHIT deletion correlates with decreased radiosensitivity in HNC cell lines. Xenograft from "double-hit" cells exhibit increased MMP-2/9 activity. These findings may in part account for the worse clinical outcome seen in patients with HNSCC "double-hit" tumors.
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