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The role of PARP1 in the DNA damage response and its application in tumor therapy
null
《医学前沿(英文)》 2012年 第6卷 第2期 页码 156-164 doi: 10.1007/s11684-012-0197-3
Single-strand break repair protein poly(ADP-ribose) polymerase 1 (PARP1) catalyzes the poly(ADP-ribosyl)ation of many key proteins in vivo and thus plays important roles in multiple DNA damage response pathways, rendering it a promising target in cancer therapy. The tumor-suppressor effects of PARP inhibitors have attracted significant interest for development of novel cancer therapies. However, recent evidence indicated that the underlying mechanism of PARP inhibitors in tumor therapy is more complex than previously expected. The present review will focus on recent progress on the role of PARP1 in the DNA damage response and PARP inhibitors in cancer therapy. The emerging resistance of BRCA-deficient tumors to PARP inhibitors is also briefly discussed from the perspective of DNA damage and repair. These recent research advances will inform the selection of patient populations who can benefit from the PARP inhibitor treatment and development of effective drug combination strategies.
关键词: PARP1 synthetic lethality PARP inhibitor DNA repair cancer NHEJ
Regulation and function of histone acetyltransferase MOF
null
《医学前沿(英文)》 2014年 第8卷 第1期 页码 79-83 doi: 10.1007/s11684-014-0314-6
The mammalian MOF (male absent on the first), a member of the MYST (MOZ, YBF2, SAS2, and Tip60) family of histone acetyltransferases (HATs), is the major enzyme that catalyzes the acetylation of histone H4 on lysine 16. Acetylation of K16 is a prevalent mark associated with chromatin decondensation. MOF has recently been shown to play an essential role in maintaining normal cell functions. In this study, we discuss the important roles of MOF in DNA damage repair, apoptosis, and tumorigenesis. We also analyze the role of MOF as a key regulator of the core transcriptional network of embryonic stem cells.
关键词: MOF histone acetyltransferase DNA damage repair tumorigenesis embryonic stem cells
Generation and repair of AID-initiated DNA lesions in B lymphocytes
null
《医学前沿(英文)》 2014年 第8卷 第2期 页码 201-216 doi: 10.1007/s11684-014-0324-4
Activation-induced deaminase (AID) initiates the secondary antibody diversification process in B lymphocytes. In mammalian B cells, this process includes somatic hypermutation (SHM) and class switch recombination (CSR), both of which require AID. AID induces U:G mismatch lesions in DNA that are subsequently converted into point mutations or DNA double stranded breaks during SHM/CSR. In a physiological context, AID targets immunoglobulin (Ig) loci to mediate SHM/CSR. However, recent studies reveal genome-wide access of AID to numerous non-Ig loci. Thus, AID poses a threat to the genome of B cells if AID-initiated DNA lesions cannot be properly repaired. In this review, we focus on the molecular mechanisms that regulate the specificity of AID targeting and the repair pathways responsible for processing AID-initiated DNA lesions.
关键词: class switch recombination somatic hypermutation activation-induced deaminase DNA repair genomic instability
Bacterial inactivation, DNA damage, and faster ATP degradation induced by ultraviolet disinfection
Chao Yang, Wenjun Sun, Xiuwei Ao
《环境科学与工程前沿(英文)》 2020年 第14卷 第1期 doi: 10.1007/s11783-019-1192-6
关键词: UV disinfection DNA damage qPCR ATP
Effects of DNA damage on oocyte meiotic maturation and early embryonic development
Shen YIN,Junyu MA,Wei SHEN
《农业科学与工程前沿(英文)》 2014年 第1卷 第3期 页码 185-190 doi: 10.15302/J-FASE-2014035
《化学科学与工程前沿(英文)》 2022年 第16卷 第1期 页码 92-102 doi: 10.1007/s11705-021-2063-9
关键词: hydrolysis reaction mitochondrial DNA damage in situ hydrophobic environment trigger fluorescence probe apoptosis
Detection of oxidative stress and DNA damage in freshwater snail
Daoud Ali, Huma Ali, Saud Alifiri, Saad Alkahtani, Abdullah A Alkahtane, Shaik Althaf Huasain
《环境科学与工程前沿(英文)》 2018年 第12卷 第5期 doi: 10.1007/s11783-018-1039-6
Freshwater snail (Lymnea luteola L.) is good bio indicator of water pollution. Profenofos is tested for its molluscicidal activity against Lymnea luteola L. snail. Deleterious effects on some oxidative stress were detected. Profenofos has a genotoxic effect on Lymnea luteola L. snails.
关键词: Acute toxicity Profenofos ROS oxidative stress DNA damage Lymnea luteola
Liang ZHUANG, Shiying YU, Xiaoyuan HUANG, Yang CAO, Huihua XIONG
《医学前沿(英文)》 2009年 第3卷 第1期 页码 26-29 doi: 10.1007/s11684-009-0008-7
关键词: Ku80 DNA-PK(cs)-binding protein human ataxia telangiectasia mutated protein tumor cell lines radiosensitivity
Functional role of ATM in the cellular response to DNA damage
Ming LIU, Wenxiang HU
《化学科学与工程前沿(英文)》 2011年 第5卷 第2期 页码 179-187 doi: 10.1007/s11705-009-0268-4
关键词: ataxia-telangiectasia mutated (ATM) cell cycle checkpoint DNA damage signalling transduction
Relationship between reactive oxygen species and sodium-selenite-induced DNA damage in HepG2 cells
ZOU Yunfeng, NIU Piye, GONG Zhiyong, YANG Jin, YUAN Jing, WU Tangchun, CHEN Xuemin
《医学前沿(英文)》 2007年 第1卷 第3期 页码 327-332 doi: 10.1007/s11684-007-0063-x
Bile duct injury repair — earlier is not better
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《医学前沿(英文)》 2015年 第9卷 第4期 页码 508-511 doi: 10.1007/s11684-015-0418-7
Bile duct injury is a common complication of cholecystectomy. The timing of bile duct injury repair remains controversial. A recent review conducted in France reported 39% complications and 64% failure after immediate repair in 194 patients compared with 14% complications and 8% failure after late repair in 133 patients. A national review of 139 consecutive early repairs conducted at five hepatopancreaticobiliary centers in Denmark reported 4% mortality, 36% morbidity, and 42 restrictures (30%) at a median follow-up of 102 months, and only 64 patients (46%) demonstrated uneventful short-term and long-term outcomes. Most patients with bile duct injury present with bile leak and sepsis; thus, early repair is not recommended. Percutaneous drainage of bile and endoscopic stenting are the mainstays of treatment of bile leak because they convert acute bile duct injury into a controlled external biliary fistula. The ensuing benign biliary stricture should be repaired by a biliary surgeon after a delay of 4–6 weeks once the external biliary fistula has closed.
关键词: bile duct injury cholecystectomy laparoscopic cholecystectomy
Junfang JI, Kun WU, Min WU, Qimin ZHAN,
《医学前沿(英文)》 2010年 第4卷 第4期 页码 412-418 doi: 10.1007/s11684-010-0260-x
工程化DNA材料构建DNA活字系统实现可持续的数据存储 Article
巩子祎, 宋理富, 裴广胜, 董雨菲, 李炳志, 元英进
《工程(英文)》 2023年 第29卷 第10期 页码 130-136 doi: 10.1016/j.eng.2022.05.023
DNA分子作为一种具有潜力的数据存储绿色材料,具有密度高和保存期长的优势。然而,目前DNA数据存储的数据写入依赖于DNA从头合成,写入成本高昂,且产生有害物,限制了其实际应用。在本研究中,我们开发了一种DNA活字存储系统,该系统可以利用由细胞工厂预生产的DNA活字片段进行数据写入。在这个系统中,这些预先生成的DNA片段,在这里称为“DNA活字”,是可重复使用的基本数据单元。通过这些DNA活字的快速组装来实现数据写入,从而避免了昂贵且对环境有害的DNA化学合成过程。通过DNA活字片段的反复使用和生物组装,该系统在降低写入成本方面的潜力非常突出,为经济和可持续的DNA数据存储技术开辟了一条新颖路线。
关键词: 合成生物学 DNA信息存储 DNA活字存储系统 经济性DNA数据存储
Mobile platform for hydraulic turbine blade repair robot
GUI Zhongcheng, CHEN Qiang, SUN Zhenguo, ZHANG Wenzeng, LIU Kang
《机械工程前沿(英文)》 2008年 第3卷 第2期 页码 164-169 doi: 10.1007/s11465-008-0035-0
Expression status of GATA3 and mismatch repair proteins in upper tract urothelial carcinoma
Yue Wang, Jinxia Zhang, Yunfan Wang, Shufang Wang, Yu Zhang, Qi Miao, Fei Gao, Huiying He
《医学前沿(英文)》 2019年 第13卷 第6期 页码 730-740 doi: 10.1007/s11684-019-0687-7
关键词: upper tract urothelial carcinoma GATA binding protein 3 mismatch repair microsatellite instability prognosis
标题 作者 时间 类型 操作
Bacterial inactivation, DNA damage, and faster ATP degradation induced by ultraviolet disinfection
Chao Yang, Wenjun Sun, Xiuwei Ao
期刊论文
Effects of DNA damage on oocyte meiotic maturation and early embryonic development
Shen YIN,Junyu MA,Wei SHEN
期刊论文
hydrophobic environment triggering reactive fluorescence probe to real-time monitor mitochondrial DNAdamage
期刊论文
Detection of oxidative stress and DNA damage in freshwater snail
Daoud Ali, Huma Ali, Saud Alifiri, Saad Alkahtani, Abdullah A Alkahtane, Shaik Althaf Huasain
期刊论文
Correlativity study between expression of DNA double-strand break repair protein and radiosensitivity
Liang ZHUANG, Shiying YU, Xiaoyuan HUANG, Yang CAO, Huihua XIONG
期刊论文
Relationship between reactive oxygen species and sodium-selenite-induced DNA damage in HepG2 cells
ZOU Yunfeng, NIU Piye, GONG Zhiyong, YANG Jin, YUAN Jing, WU Tangchun, CHEN Xuemin
期刊论文
p53 functional activation is independent of its genotype in five esophageal squamous cell carcinoma cell lines
Junfang JI, Kun WU, Min WU, Qimin ZHAN,
期刊论文
Mobile platform for hydraulic turbine blade repair robot
GUI Zhongcheng, CHEN Qiang, SUN Zhenguo, ZHANG Wenzeng, LIU Kang
期刊论文