Transduced human PEP-1–catalase fusion protein attenuates ischemic neuronal damage
| Autor: | Jae Jin An, Moo Ho Won, Tae-Cheon Kang, Won Sik Eum, Dae Won Kim, Oh-Shin Kwon, In Koo Hwang, Eun Jeong Sohn, Sung-Woo Cho, Hye Won Kang, Ki-Yeon Yoo, Hoon Jae Jeong, Eun Hee Ahn, Min Jea Shin, Jinseu Park, Soo Young Choi, Sang Ho Jang, Mi Jin Kim |
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| Rok vydání: | 2009 |
| Předmět: |
Programmed cell death
Cysteamine Recombinant Fusion Proteins education Oxidative phosphorylation Biology medicine.disease_cause Hippocampus Biochemistry Superoxide dismutase Lipid peroxidation chemistry.chemical_compound Physiology (medical) medicine Humans Neurons chemistry.chemical_classification Reactive oxygen species Catalase Immunohistochemistry Molecular biology Fusion protein Cell biology Oxidative Stress chemistry Ischemic Attack Transient cardiovascular system biology.protein Lipid Peroxidation Peptides Reactive Oxygen Species Oxidative stress Signal Transduction circulatory and respiratory physiology |
| Zdroj: | Free Radical Biology and Medicine. 47:941-952 |
| ISSN: | 0891-5849 |
| DOI: | 10.1016/j.freeradbiomed.2009.06.036 |
| Popis: | Antioxidant enzymes are considered to have beneficial effects against various diseases mediated by reactive oxygen species (ROS). Ischemia is characterized by both oxidative stress and changes in the antioxidant defense system. Catalase (CAT) and superoxide dismutase (SOD) are major antioxidant enzymes by which cells counteract the deleterious effects of ROS. To investigate the protective effects of CAT, we constructed PEP-1-CAT cell-permeative expression vectors. When PEP-1-CAT fusion proteins were added to the culture medium of neuronal cells, they rapidly entered the cells and protected them against oxidative stress-induced neuronal cell death. Immunohistochemical analysis revealed that PEP-1-CAT prevented neuronal cell death in the hippocampus induced by transient forebrain ischemia. Moreover, we showed that the protective effect of PEP-1-CAT was observed in neuronal cells treated with PEP-1-SOD. Therefore, we suggest that transduced PEP-1-CAT and PEP-1-SOD fusion proteins could be useful as therapeutic agents for various human diseases related to oxidative stress, including stroke. |
| Databáze: | OpenAIRE |
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