Knockout of programmed cell death 5 (PDCD5) gene attenuates neuron injury after middle cerebral artery occlusion in mice

2016 ◽  
Vol 1650 ◽  
pp. 152-161 ◽  
Author(s):  
Jianfei Lu ◽  
Zhao Jiang ◽  
Yingyu Chen ◽  
Changman Zhou ◽  
Chunhua Chen
2010 ◽  
Vol 32 (sup1) ◽  
pp. 84-87 ◽  
Author(s):  
Kyoung Ah Kang ◽  
Eun Sim Shin ◽  
Jinyoung Hur ◽  
Mohmmad Rakibul Hasan ◽  
Hyejung Lee ◽  
...  

2007 ◽  
Vol 27 (9) ◽  
pp. 1632-1642 ◽  
Author(s):  
Nils Henninger ◽  
James Bouley ◽  
Julia M Nelligan ◽  
Kenneth M Sicard ◽  
Marc Fisher

Normobaric hyperoxia (NBO) has been shown to extend the reperfusion window after focal cerebral ischemia. Employing diffusion (DWI)- and perfusion (PWI)-weighted magnetic resonance imaging (MRI), the effect of NBO (100% started at 30 mins after middle cerebral artery occlusion (MCAO)) on the spatiotemporal evolution of ischemia during and after permanent (pMCAO) and transient suture middle cerebral artery occlusion (tMCAO) was investigated (experiment 3). In two additional experiments, time window (experiment 1) and cell death pathways (experiment 2) were investigated in the pMCAO model. In experiment 1, NBO treatment reduced infarct volume at 24 h after pMCAO by 10% when administered for 3 h ( P > 0.05) and by 44% when administered for 6 h ( P < 0.05). In experiment 2, NBO acutely (390 mins, P < 0.05) reduced in situ end labeling (ISEL) positivity in the ipsilesional penumbra but increased contralesional necrotic as well as caspase-3-mediated apoptotic cell death. In experiment 3, CBF characteristics and CBF-derived lesion volumes did not differ between treated and untreated animals, whereas the apparent diffusion coefficient (ADC)-derived lesion volume essentially stopped progressing during NBO treatment, resulting in a persistent PWI/DWI mismatch that could be salvaged by delayed (3 h) reperfusion. In conclusion, NBO (1) acutely preserved the perfusion/diffusion mismatch without altering CBF, (2) significantly extended the time window for reperfusion, (3) induced lasting neuroprotection in permanent ischemia, and (4) although capable of reducing cell death in hypoperfused tissue it also induced cell death in otherwise unaffected areas. Our data suggest that NBO may represent a promising strategy for acute stroke treatment.


2001 ◽  
Vol 55 (3) ◽  
pp. 375-386 ◽  
Author(s):  
William D. Hill ◽  
David C. Hess ◽  
James E. Carroll ◽  
Chandramohan G. Wakade ◽  
Eugene F. Howard ◽  
...  

1998 ◽  
Vol 18 (3) ◽  
pp. 238-247 ◽  
Author(s):  
Matthias Endres ◽  
Shobu Namura ◽  
Masao Shimizu-Sasamata ◽  
Christian Waeber ◽  
Lin Zhang ◽  
...  

Inhibitors of apoptosis and of excitotoxic cell death reduce brain damage after transient and permanent middle cerebral artery occlusion. We compared the neuroprotective effects of two caspase family inhibitors with the N-methyl-d-aspartate receptor antagonist (+)-MK-801 hydrogen maleate (MK-801) in a newly characterized cycloheximidesensitive murine model of transient middle cerebral artery occlusion (30 minutes) in which apoptotic cell death is prominent. Ischemic infarction, undetected by 2,3,5-triphenyltetrazolium chloride staining at 24-hour reperfusion, featured prominently in the striatum at 72 hours and 7 days on hematoxylin-eosin—stained sections. Markers of apoptosis, such as oligonucleosomal DNA damage (laddering) and terminal deoxynucleotidyl transferase—mediated dUTP-biotin nick-end labeling (TUNEL)–positive cells first appeared at 24 hours and increased significantly at 72 hours and 7 days after reperfusion. The TUNEL-labeled cells were mostly neurons and stained negative for glial (GFAP, glial fibrillary acid protein) and leukocyte specific markers (CD-45). The caspase inhibitors, N-benzyloxycarbonyl-Val-Ala-Asp-fluoromethyl ketone (z-VAD.FMK; 120 ng intracerebroventricularly) or N-benzyloxycarbonyl-Asp-Glu-Val-Asp-fluoromethyl ketone (z-DEVD.FMK; 480 ng intracerebroventricularly) decreased infarct size and neurologic deficits when administered 6 hours after reperfusion. The extent of protection was greater than in models of more prolonged ischemia or after permanent occlusion, and the therapeutic window was extended from 0 to 1 hours after 2-hour middle cerebral artery occlusion to at least 6 hours after brief ischemia. Also, z-VAD.FMK and z-DEVD.FMK treatment decreased oligonucleosomal DNA damage (DNA laddering) as assessed by quantitative autoradiography after gel electrophoresis. By contrast, MK-801 protected brain tissue only when given before ischemia (3 mg/kg intraperitoneally), but not at 3 or 6 hours after reperfusion. Despite a decrease in infarct size after MK-801 pretreatment, the amount of DNA laddering did not decrease 72 hours after reperfusion, thereby suggesting a mechanism distinct from inhibition of apoptosis. Hence, 30 minutes of reversible ischemia augments apoptotic cell death, which can be attenuated by delayed z-VADPMK and z-DEVD.FMK administration with preservation of neurologic function. By contrast, the therapeutic window for MK-801 does not extend beyond the time of occlusion, probably because its primary mechanism of action does not block the development of apoptotic cell death.


2010 ◽  
Vol 484 (1) ◽  
pp. 43-46 ◽  
Author(s):  
Yasuhisa Oida ◽  
Junya Hamanaka ◽  
Kana Hyakkoku ◽  
Masamitsu Shimazawa ◽  
Takashi Kudo ◽  
...  

2005 ◽  
Vol 25 (1_suppl) ◽  
pp. S217-S217
Author(s):  
Kentaro Deguchi ◽  
Mikiro Takaishi ◽  
Takeshi Hayashi ◽  
Atsuhiko Oohira ◽  
Shoko Nagotani ◽  
...  

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