机构:[1]Department of Histology and Embryology, Basic Medical School, Nanchang University, Nanchang, China[2]Center for Metabolic Disease Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States[3]Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States[4]Department of Ultrasound, Xijing Hospital, Shaanxi, China[5]Department of Emergency Medicine, Shengjing Hospital, Liaoning, China医疗医技科室急诊科中国医科大学盛京医院[6]Department of Endocrinology, Shengjing Hospital, Liaoning, China内科医疗医技科室内分泌内科中国医科大学盛京医院[7]Department of Cardiovascular Medicine, The First Affiliated Hospital of Kunming Medical University, Yunnan, China昆明医科大学附属第一医院心脏内科内科科室[8]Jiangxi Provincial Key Laboratory of Preventive Medicine, Nanchang University, Nanchang, China[9]Department of Medicine, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, United States[10]Department of Neuroscience, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States[11]Center for Translational Medicine, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States[12]Departments of Pharmacology, and Surgery, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States
Under inflammatory conditions, inflammatory cells release reactive oxygen species (ROS) and reactive nitrogen species (RNS) which cause DNA damage. If not appropriately repaired, DNA damage leads to gene mutations and genomic instability. DNA damage checkpoint factors (DDCF) and DNA damage repair factors (DDRF) play a vital role in maintaining genomic integrity. However, how DDCFs and DDRFs are modulated under physiological and pathological conditions are not fully known. We took an experimental database analysis to determine the expression of 26 DNA DDCFs and 42 DNA DDRFs in 21 human and 20 mouse tissues in physiological/pathological conditions. We made the following significant findings: (1) Few DDCFs and DDRFs are ubiquitously expressed in tissues while many are differentially regulated.; (2) the expression of DDCFs and DDRFs are modulated not only in cancers but also in sterile inflammatory disorders and metabolic diseases; (3) tissue methylation status, pro-inflammatory cytokines, hypoxia regulating factors and tissue angiogenic potential can determine the expression of DDCFs and DDRFs; (4) intracellular organelles can transmit the stress signals to the nucleus, which may modulate the cell death by regulating the DDCF and DDRF expression. Our results shows that sterile inflammatory disorders and cancers increase genomic instability, therefore can be classified as pathologies with a high genomic risk. We also propose a new concept that as parts of cellular sensor cross-talking network, DNA checkpoint and repair factors serve as nuclear sensors for intracellular organelle stresses. Further, this work would lead to identification of novel therapeutic targets and new biomarkers for diagnosis and prognosis of metabolic diseases, inflammation, tissue damage and cancers.
基金:
NIHUnited States Department of Health & Human ServicesNational Institutes of Health (NIH) - USA [HL131460-01]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China [81460110, 81660123]; Scientific Research Project of Jiangxi Provincial Education Department [GJJ14102]; Graduate Innovation Special Fund of Jiangxi Province [YC2016-B028]
第一作者机构:[1]Department of Histology and Embryology, Basic Medical School, Nanchang University, Nanchang, China
通讯作者:
推荐引用方式(GB/T 7714):
Zeng Huihong,Nanayakkara Gayani K.,Shao Ying,et al.DNA Checkpoint and Repair Factors Are Nuclear Sensors for Intracellular Organelle Stresses - Inflammations and Cancers Can Have High Genomic Risks[J].FRONTIERS IN PHYSIOLOGY.2018,9:doi:10.3389/fphys.2018.00516.
APA:
Zeng, Huihong,Nanayakkara, Gayani K.,Shao, Ying,Fu, Hangfei,Sun, Yu...&Yang, Xiaofeng.(2018).DNA Checkpoint and Repair Factors Are Nuclear Sensors for Intracellular Organelle Stresses - Inflammations and Cancers Can Have High Genomic Risks.FRONTIERS IN PHYSIOLOGY,9,
MLA:
Zeng, Huihong,et al."DNA Checkpoint and Repair Factors Are Nuclear Sensors for Intracellular Organelle Stresses - Inflammations and Cancers Can Have High Genomic Risks".FRONTIERS IN PHYSIOLOGY 9.(2018)