Abstract | BACKGROUND AND PURPOSE: METHODS:
hsp70.1 KO and WT mice underwent focal ischemia for 120 minutes. DNA fragmentation was evaluated by TUNEL staining. Cytochrome c release and the activation of caspase-3 were analyzed by Western blotting and immunohistochemistry. RESULTS:
hsp70.1 mRNA was not detected in hsp70.1 KO mice after ischemia, and HSP70 protein expression was markedly suppressed versus WT mice. KO mice showed a significantly greater infarction volume and DNA fragmentation in the cortex than WT mice at 24 hours after ischemia. At 8 hours, cytochrome c release into the cytoplasm was markedly higher in KO mice than in WT mice. Caspase-3 activation was also significantly enhanced in KO mice versus WT mice, as evidenced by higher levels of activated caspase-3 and cleaved gelsolin. CONCLUSIONS:
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Authors | Seung-Hoon Lee, Hyung-Min Kwon, Young-Ju Kim, Kyung-Mi Lee, Manho Kim, Byung-Woo Yoon |
Journal | Stroke
(Stroke)
Vol. 35
Issue 9
Pg. 2195-9
(Sep 2004)
ISSN: 1524-4628 [Electronic] United States |
PMID | 15243143
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
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Chemical References |
- Gelsolin
- HSP70 Heat-Shock Proteins
- Hsp70.3 protein, mouse
- Nerve Tissue Proteins
- RNA, Messenger
- heat-shock protein 70.1
- Cytochromes c
- Casp3 protein, mouse
- Caspase 3
- Caspases
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Topics |
- Animals
- Apoptosis
(genetics, physiology)
- Caspase 3
- Caspases
(metabolism)
- Cerebral Infarction
(etiology, pathology)
- Cytochromes c
(analysis)
- DNA Fragmentation
- Enzyme Activation
- Gelsolin
(metabolism)
- HSP70 Heat-Shock Proteins
(biosynthesis, deficiency, genetics, physiology)
- Infarction, Middle Cerebral Artery
(complications, genetics, metabolism, pathology)
- Male
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Mitochondria
(metabolism)
- Nerve Tissue Proteins
(genetics, metabolism)
- Protein Denaturation
- RNA, Messenger
(biosynthesis)
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