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Repair of localized DNA damage

Repair of localized DNA damage
修复局部DNA损伤
批准号:
7732308
负责人:
Michael Seidman
金额:
$33.42万
依托单位:
依托单位国家:
美国
项目类别:
财政年份:
--
资助国家:
美国
项目状态:
未结题
起止时间:
至

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中文摘要
翻译
链间交联是特别危险的DNA损伤,因为它们是复制和转录的绝对障碍。它们被认为是氧化代谢的产物,也是一些化疗药物治疗的结果。补骨脂素是一种具有光活性的DNA链间交联剂,已在临床上应用多年。我们合成并证明了抗原连接的补骨脂素的活性。用化合物孵育的细胞中定义的亚核区域的光激活导致局部交联。这些加合物的修复在修复熟练和缺陷细胞中进行。我们正在使用这种方法跟踪蛋白质进入交联修复位点的招募。
英文摘要
Interstrand crosslinks are particularly dangerous DNA lesions as they are absolute blocks to replication and transcription. They are believed to occur as a product of oxidative metabolism, and are also a consequence of treatment with some chemotherapy drugs. Psoralens are photoactive DNA interstrand crosslinkers that have been used clinically for many years. We synthesized, and demonstrated the activity of, antigen linked psoralens. Photoactivation of defined subnuclear regions in cells incubated with the compounds resulted in localized crosslinks. Repair of these adducts was followed in repair proficient and deficient cells. We are using this approach to follow the recruitment of proteins into sites of crosslink repair.
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Repair of localized DNA damage
  • 批准号:
    7964038
  • 项目类别:
  • 资助金额:
    $36.31万
  • 财政年份:
    --
  • 负责人:
    Michael Seidman
  • 依托单位:
Factors that modulate cellular homeostasis to overcome replicative stress in aging
  • 批准号:
    10003698
  • 项目类别:
  • 资助金额:
    $10.0万
  • 财政年份:
    --
  • 负责人:
    Michael Seidman
  • 依托单位:
Repair of localized DNA damage
  • 批准号:
    10003713
  • 项目类别:
  • 资助金额:
    $88.57万
  • 财政年份:
    --
  • 负责人:
    Michael Seidman
  • 依托单位:
Double strand break repair
  • 批准号:
    8148309
  • 项目类别:
  • 资助金额:
    $14.26万
  • 财政年份:
    --
  • 负责人:
    Michael Seidman
  • 依托单位:
海外基金