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Updated: Jun 29, 2025

Immunofluorescence Imaging of DNA Damage and Repair Foci in Human Colon Cancer Cells
05:18

Immunofluorescence Imaging of DNA Damage and Repair Foci in Human Colon Cancer Cells

Published on: June 9, 2020

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碳离子放射治疗对DNA损伤修复的强度与基于生物物理模型的放射敏感度变化相关

Hans Liew1,2,3, Thomas Tessonnier4,5, Stewart Mein1,2,3,6

  • 1Clinical Cooperation Unit Translational Radiation Oncology, German Cancer Consortium (DKTK) Core-Center Heidelberg, National Center for Tumor Diseases (NCT), Heidelberg University Hospital (UKHD) and German Cancer Research Center (DKFZ), Heidelberg, Germany.

Medical physics
|April 3, 2024
PubMed
概括

与传统放射疗法相比,碳离子放射疗法 (CIRT) 对患者辐射敏感度变化具有更大的稳定性. 这种方法最大限度地减少了治疗结果的分歧,特别是在最大限度地提高瘤内的线性能量转移 (LET) 时.

关键词:
DNA损伤修复干扰干扰让我们提升推动力.在UNIVERSE生物物理建模中.

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Mutations01:35

Mutations

Mutations are changes in the sequence of DNA. These changes can occur spontaneously or they can be induced by exposure to environmental factors. Mutations can be characterized in a number of different ways: whether and how they alter the amino acid sequence of the protein, whether they occur over a small or large area of DNA, and whether they occur in somatic cells or germline cells.
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In order to be passed through generations, genomic DNA must be undamaged and error-free. However, every day, DNA in a cell undergoes several thousand to a million damaging events by natural causes and external factors. Ionizing radiation such as UV rays, free radicals produced during cellular respiration, and hydrolytic damage from metabolic reactions can alter the structure of DNA. Damages caused include single-base alteration, base dimerization, chain breaks, and cross-linkage.
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