ArticleScientific reports2021
Activation of efficient DNA repair mechanisms after photon and proton irradiation of human chondrosarcoma cells.
Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed, 16 citations in OpenAlex.
- Targeting the Hippo/YAP-TAZ pathway increases X-ray sensitivity in chondrosarcoma spheroids and is associated with autophagic disruption.Journal of bone oncology · 2026Article
- Proton Irradiation Induces Differential Cellular Responses and Proteomic Signatures in Chondrosarcoma and Chondrocytes.Current issues in molecular biology · 2026Article
- Dose- and time-dependent relative biological effect of proton in different intracerebral cells.Scientific reports · 2026Article
- Article
- Evaluation of crizotinib as radiosensitizer in sacral chordoma cells: effects of combined carbon ion particle therapy.Medical oncology (Northwood, London, England) · 2025Article
- Dynamic crosstalk between amino acid metabolism and cancer drug efficacy: From mechanisms to therapeutic opportunities.iScience · 2025Review
- Radioresistant mouse pheochromocytoma cell lines.Frontiers in oncology · 2025Article
- Enhancing Proton Radiosensitivity of Chondrosarcoma Using Nanoparticle-Based Drug Delivery Approaches: A Comparative Study of High- and Low-Energy Protons.International journal of molecular sciences · 2024Article
- Article
- DNA-PKcs Inhibition Sensitizes Human Chondrosarcoma Cells to Carbon Ion Irradiation via Cell Cycle Arrest and Telomere Capping Disruption.International journal of molecular sciences · 2024Article
- Evaluation of specific RBE in different cells of hippocampus under high-dose proton irradiation in rats.Scientific reports · 2024Article
- ATR signaling controls the bystander responses of human chondrosarcoma cells by promoting RAD51-dependent DNA repair.International journal of radiation biology · 2024Article
- The ATR Inhibitor VE-821 Enhances the Radiosensitivity and Suppresses DNA Repair Mechanisms of Human Chondrosarcoma Cells.International journal of molecular sciences · 2023Article
- Particle Therapy: Clinical Applications and Biological Effects.Life (Basel, Switzerland) · 2022Review
- Cellular and Molecular Biological Alterations after Photon, Proton, and Carbon Ions Irradiation in Human Chondrosarcoma Cells Linked with High-Quality Physics Data.International journal of molecular sciences · 2022Article
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Authors and funding
11 authors at 4 institutions in 2 countries.
Funding
Abstract
Although particle therapy with protons has proven to be beneficial in the treatment of chondrosarcoma compared to photon-based (X-ray) radiation therapy, the cellular and molecular mechanisms have not yet been sufficiently investigated. Cell viability and colony forming ability were analyzed after X-ray and proton irradiation (IR). Cell cycle was analyzed using flow cytometry and corresponding regulator genes and key players of the DNA repair mechanisms were measured using next generation sequencing, protein expression and immunofluorescence staining. Changes in metabolic phenotypes were determined with nuclear magnetic resonance spectroscopy. Both X-ray and proton IR resulted in reduced cell survival and a G2/M phase arrest of the cell cycle. Especially 1 h after IR, a significant dose-dependent increase of phosphorylated γH2AX foci was observed. This was accompanied with a reprogramming in cellular metabolism. Interestingly, within 24 h the majority of clearly visible DNA damages were repaired and the metabolic phenotype restored. Involved DNA repair mechanisms are, besides the homology directed repair (HDR) and the non-homologous end-joining (NHEJ), especially the mismatch mediated repair (MMR) pathway with the key players EXO1, MSH3, and PCNA. Chondrosarcoma cells regenerates the majority of DNA damages within 24 h. These molecular mechanisms represent an important basis for an improved therapy.
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