The aim of this study is to build a computational model to investigate the cell dose and cell DNA damage distribution of a multicellular tissue system under the irradiation. In this work, we developed a computational model for quantifying cell dose and double strand break (DSB) number in a multicellular system by simulating the radiation transport in 2D and 3D cell culture. The model was based on an open-source radiation transport package, Geant4 with Geant4-DNA physics. First, the computational multicellular system was created using a developed program, CelllMaker. Second, the radiation transport simulation for cells was conducted using Geant4 package with the Geant4-DNA physics to obtain the cellular dose and cellular DSB yield. Using the method described in this work, it is possible to obtain the cellular dose and DNA damage simultaneously. The developed model provides a solution for quantifying the cellular dose and cellular DNA damage which are not easily determined in a radiobiological experiment. With limited validation data for the model, this preliminary study provides a roadmap for building a comprehensive toolkit for simulating cellular dose and DNA damage of multicellular tissue systems.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1080/09553002.2019.1642537 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Combinatorial functionomics identifies HDAC6-dependent molecular vulnerability of radioresistant head and neck cancer.
Exp Hematol Oncol
January 2025
Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore.
Background: Radiotherapy is the primary treatment modality for most head and neck cancers (HNCs). Despite the addition of chemotherapy to radiotherapy to enhance its tumoricidal effects, almost a third of HNC patients suffer from locoregional relapses. Salvage therapy options for such recurrences are limited and often suboptimal, partly owing to divergent tumor and microenvironmental factors underpinning radioresistance.
View Article and Find Full Text PDFSynergistic effect of repurposed mitomycin C in combination with antibiotics against Aeromonas infection: In vitro and in vivo studies.
J Microbiol Immunol Infect
December 2024
Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan; Department of Oncology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan; Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan. Electronic address:
Background: Aeromonas infections pose a significant threat associated with high mortality rates. This study investigates the potential of mitomycin C (MMC), an anticancer drug, as a novel antimicrobial agent against Aeromonas infections.
Methods: We evaluated the minimum inhibitory concentrations (MICs) of MMC and antibiotics against clinical Aeromonas isolates using broth microdilution.
Induction of age-related ocular disorders in a mouse model of pulmonary fibrosis.
Exp Eye Res
January 2025
State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, 270 Xueyuan Road, Wenzhou, Zhejiang 325027, P. R. China. Electronic address:
Idiopathic pulmonary fibrosis (IPF) is a progressive lung disease linked to aging. This study investigates potential connections between IPF and age-related eye problems using a bleomycin-induced IPF mouse model. Intratracheal administration of bleomycin induces rapid lung injury in mice, followed by IPF with characteristics of cellular senescence.
View Article and Find Full Text PDFMonocytic reactive oxygen species-induced T cell apoptosis impairs cellular immune response to SARS-CoV-2 mRNA vaccine.
J Allergy Clin Immunol
January 2025
Institute of Human Genetics, UMR9002, CNRS and Montpellier University; Montpellier, France; Montpellier University; Montpellier, France; Immunology Department, University Hospital; Nîmes, France. Electronic address:
Background: We have recently shown that, during acute severe COVID-19, SARS-CoV-2 spike protein (S) induces a cascade of events resulting in T cell apoptosis. Indeed, by neutralizing the protease activity of its receptor, ACE2, S induces an increase in circulating Angiotensin II (AngII), resulting in monocytic release of reactive oxygen species (ROS) and programmed T cell death.
Objective: Here, we tested whether SARS-CoV-2 mRNA vaccines, known to cause the circulation of the vaccine antigen, S-protein receptor binding domain (RBD), might trigger the same cascade.
Sub-lethal effects of innovative anti-corrosion nanoadditives on the marine bivalve Ruditapes philippinarum.
Environ Pollut
January 2025
CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal.
Corrosion significantly affects the maritime industry. To address this issue, corrosion inhibitors are incorporated into polymeric coatings. However, some state-of-the-art inhibitors are toxic, prone to spontaneous leaching, and interact with coating components.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!