title: Inhibition of SENP3 by lentivirus induces suppression of apoptosis in experimental subarachnoid hemorrhage in rats.
abstract: BACKGROUND
  Subarachnoid hemorrhage (SAH) is one of the life-threatening diseases with high morbidity and mortality rates. SUMO-specific proteases 3 (SENP3), a member of the small ubiquitin-like modifier specific protease family, was identified as an isopeptidase that deconjugates SUMOylation (The covalent modification by SUMO) of modified protein substrates. It is reported that SUMO-2/3 conjugation, a member of SUMOylation, presented neuroprotection. The study aimed to evaluate the expression of SENP3 and to explore its potential role in SAH.
  
  
  METHODS
  A total of 108 Sprague Dawley (SD) rats were randomly divided into 2 parts experiment and 9 subgroups (part 1:Sham group, SAH group, SAH+NAC group, SAH+vehicle group; part 2: Sham group, SAH group, SAH+lv-SENP3 group, SAH+lv-null group, SAH+NS group). 7 days before SAH, lentivirus was administrated into rats׳ left lateral ventricle to down-regulate SENP3. Experimental SAH was imitated by injection with 0.3ml nonheparinized autoblood into the prechiasmatic cistern. MDA levels, SOD activities, and GSH contents were detected to evaluate oxidative stress level. SENP3 and cleaved caspase 3 were detected by western blot, apoptosis was observed by TUNEL staining.
  
  
  RESULTS
  High oxidative stress level following SAH induced rising of SENP3. And inhibition of SENP3 by lentivirus induces suppression of apoptosis in experimental subarachnoid hemorrhage in rats.
  
  
  CONCLUSIONS
  When SENP3 accumulated by high oxidative stress, caspase 3 activated subsequently. And it leads to more severe apoptosis than physiological.
authors.affiliation: Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, Jiangsu Province, China.
authors.forename: Yi-Qing
authors.initials: YQ
authors.lastname: Yang
authors.affiliation: Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, Jiangsu Province, China.
authors.forename: Hua
authors.initials: H
authors.lastname: Li
authors.affiliation: Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, Jiangsu Province, China.
authors.forename: Xiang-Sheng
authors.initials: XS
authors.lastname: Zhang
authors.affiliation: Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, Jiangsu Province, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Li
authors.affiliation: Department of Neurosurgery, Jinling Hospital, School of Medicine, Southern Medical University, Guangzhou, China.
authors.forename: Li-Tian
authors.initials: LT
authors.lastname: Huang
authors.affiliation: Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, Jiangsu Province, China.
authors.forename: Zhuang
authors.initials: Z
authors.lastname: Yu
authors.affiliation: Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, Jiangsu Province, China.
authors.forename: Tian-Wei
authors.initials: TW
authors.lastname: Jiang
authors.affiliation: Department of Neurosurgery, Jinling Hospital, School of Medicine, Southern Medical University, Guangzhou, China.
authors.forename: Qiang
authors.initials: Q
authors.lastname: Chen
authors.affiliation: Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, Jiangsu Province, China. Electronic address: hang_neurosurgery@163.com.
authors.forename: Chun-Hua
authors.initials: CH
authors.lastname: Hang
mesh_terms: D000818:Animals; D017209:Apoptosis / Q000235:genetics / Q000502:physiology*; D053148:Caspase 3 / Q000378:metabolism; D002540:Cerebral Cortex / Q000473:pathology / Q000503:physiopathology; D004195:Disease Models, Animal; D010450:Endopeptidases / Q000235:genetics / Q000378:metabolism*; D005822:Genetic Vectors; D005978:Glutathione / Q000378:metabolism; D016086:Lentivirus / Q000235:genetics; D008297:Male; D008315:Malondialdehyde / Q000378:metabolism; D009474:Neurons / Q000473:pathology / Q000502:physiology; D018384:Oxidative Stress / Q000235:genetics / Q000502:physiology*; D034741:RNA, Small Interfering; D011897:Random Allocation; D017207:Rats, Sprague-Dawley; D013345:Subarachnoid Hemorrhage / Q000473:pathology / Q000503:physiopathology* / Q000628:therapy; D013482:Superoxide Dismutase / Q000378:metabolism
chemical_list: D034741:RNA, Small Interfering; D008315:Malondialdehyde; D013482:Superoxide Dismutase; D010450:Endopeptidases; C581559:SUMO-specific protease 3, rat; C505410:Casp3 protein, rat; D053148:Caspase 3; D005978:Glutathione
keywords: Cleavage caspase-3; Oxidative stress; SENP3; Subarachnoid hemorrhage