DNA Damage/DNA Repair - Cell Experiments
The DNA in a human cell receives tens of thousands of damages per day due to both external (exogenous) and internal (endogenous) stress. The exogenous damages are caused by chemical contamination, UV light, ionizing radiation and alkylation/methylation etc, while the endogenous damages are coming from oxidation, alkylation and hydrolysis of bases etc. Since single strand and double strand breaks of DNA will occur after the damage, unrepaired DNA damage leads to cell senescent, apoptosis and malignancies etc. To overcome this threat, cell has developed DNA damage response, to detect DNA damage and mediate its repair.
DNA repair involves multiple mechanisms such as mismatch, base excision, and nucleotide excision repair etc. A group of proteins and pathways are participated in those processes. ATM/ATR kinases and DNA-PK are crucial for the detection of the DNA damage. Chromatin remodelers regulate chromatin accessibility for the DNA repair factors to function. RPA, Rad51 and the fanconi anemia proteins act directly on repairing the DNA damage. p53 network, the RAS GTPase superfamily, and the ubiquitin system also play important part in the DNA damage response. Aberrant DNA damage response is linked to aging, cancer and immune diseases.
- B4896 BMH-21Target: RNA PolymerasesSummary: RNA聚合酶I抑制剂
- B4745 (S)-10-Hydroxycamptothecin中文名: 羟喜树碱Target: TopoisomerasesSummary: 拓扑异构酶I抑制剂
- B7426 L189Target: DNA LigasesSummary: DNA连接酶 I、III 及IV的抑制剂
- B7382 Ellipticine中文名: 玫瑰树碱,椭圆玫瑰树碱Target: TopoisomerasesSummary: DNA拓扑异构酶II抑制剂
- B7336 Thiostrepton中文名: 硫链丝菌素Target: FoxM1Summary: 抑制细菌蛋白合成的抗生素
- B3742 Thio-TEPASummary: 用于治疗癌症的烷化剂
- B1471 Adenine HCl中文名: 腺嘌呤盐酸盐Target: Adenine receptorsSummary: 腺苷受体激动剂
- B2295 Pirarubicin1 Citation中文名: 吡柔比星Target: TopoisomerasesSummary: 拓扑异构酶II抑制剂,蒽环类抗生素
- B1476 Raltitrexed中文名: 雷替曲塞Target: Thymidylate SynthaseSummary: 胸苷酸合酶抑制剂
- B1470 Procarbazine HCl中文名: 盐酸甲基苄肼Summary: 抗肿瘤化疗药物