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dc.contributor.advisor김승현-
dc.contributor.author김영철-
dc.date.accessioned2018-04-18T06:08:00Z-
dc.date.available2018-04-18T06:08:00Z-
dc.date.issued2018-02-
dc.identifier.urihttps://repository.hanyang.ac.kr/handle/20.500.11754/68423-
dc.identifier.urihttp://hanyang.dcollection.net/common/orgView/200000432228en_US
dc.description.abstractExcessive activation of Poly (ADP-ribose) polymerase-1 (PARP-1) after ischemic stroke is known to develop neuronal apoptosis, necrosis and inflammation. The present study investigated in vitro and in vivo neuroprotective effects of a novel PARP-1 inhibitor, JPI-289. The inhibitor strongly inhibited PARP-1 activity (IC50 = 18.5 nM) and cellular PAR level (IC50 = 10.7 nM). In rat cortical neuronal cells, JPI-289 did not affect cell viability up to 1 mM as shown in trypan blue staining (TBS) and lactate dehydrogenase (LDH) assays. In oxygen glucose deprived (OGD) rat cortical neuron, treatment of JPI-289 attenuated PARP activity and restored ATP and NAD+ levels. JPI-289 treatment in the OGD model showed decrement of apoptosis-associated molecules including apoptosis-inducing factor (AIF), cytochrome-C and cleaved caspase-3. After the evaluation of JPI-289 in vitro model, we investigated the neuroprotective effects of JPI-289 in rat permanent and transient stroke models. In transient middle cerebral artery occlusion (MCAO) model in rats, JPI-289 treatment showed significant reduction of infarcted area of brain, which was maximal at the dose of 10 mg/kg up to 36% reduction. The therapeutic time window was 8 hours for reduction of ischemic volume up to 29%. Moreover, number of apoptotic cells decreased by 56% compared to control. When model was twitched to permanent MCAO model in rats, JPI-289 treatment significantly reduced infarcted volume up to 20% at the dose of 40 mg/kg, and improved behavioral socre. Along with stable and safe data of novel PARP-1 inhibitor, JPI-289 on pharmacokinetics and toxicology, its effectiveness on ischemic stroke models and modes of action mechanisms suggest that JPI-289 could be a potential therapeutic agent for the treatment of acute ischemic stroke.-
dc.publisher한양대학교-
dc.titleTherapeutic effects of a novel PARP-1 inhibitor, JPI-289, in models of acute ischemic stroke-
dc.title.alternative급성 허혈성 뇌졸중에서 새로운 PARP-1 억제제 (JPI-289)의 치료 효과-
dc.typeTheses-
dc.contributor.googleauthor김영철-
dc.contributor.alternativeauthorKim, Young-Chul-
dc.sector.campusS-
dc.sector.daehak대학원-
dc.sector.department의학과-
dc.description.degreeDoctor-
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GRADUATE SCHOOL[S](대학원) > MEDICINE(의학과) > Theses (Ph.D.)
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