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Article: PD150606 protects against ischemia/reperfusion injury by preventing μ-calpain-induced mitochondrial apoptosis.

TitlePD150606 protects against ischemia/reperfusion injury by preventing μ-calpain-induced mitochondrial apoptosis.
Authors
Issue Date2015
PublisherAcademic Press. The Journal's web site is located at http://www.elsevier.com/locate/yabbi
Citation
Archives of Biochemistry and Biophysics, 2015, v. 586, p. 1-9 How to Cite?
AbstractCalpain plays an important role in myocardial ischemia/reperfusion (I/R) injury. PD150606, a nonpeptide, cell-permeable and noncompetitive calpain inhibitor, has been shown to have protective properties in ischemic disease. The aims of the present study were to investigate whether PD150606 could alleviate myocardial I/R injury and to examine the possible mechanisms involved. The I/R model was established in vivo in C57BL/6 mice and in vitro using neonatal mouse cardiomyocytes, respectively. To evaluate the protective effects of PD150606 on I/R injury, we measured the myocardial infarct area, apoptosis, and expression of cleaved caspase-3. We also investigated the underlying mechanisms by examining mitochondrial function as reflected by the ATP concentration, translocation of cytochrome c, dynamics of mPTP opening, and membrane potential (ΔΨm), coupled with calpain activity. Pretreatment with PD150606 significantly reduced the infarct area and apoptosis caused by I/R. PD150606 pretreatment also reduced mitochondrial dysfunction by inhibiting calpain activation. Moreover, we found that μ-calpain is the main contributor to I/R-induced calpain activation. Knockdown of μ-calpain with siRNA significantly reversed calpain activation, mitochondrial dysfunction, and cardiomyocyte apoptosis caused by I/R in vitro. Our results suggest that PD150606 may protect against I/R injury via preventing μ-calpain-induced mitochondrial apoptosis. © 2015 Elsevier Inc. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/217178
ISSN
2015 Impact Factor: 2.807
2015 SCImago Journal Rankings: 1.478
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorLuo, T-
dc.contributor.authorYue, R-
dc.contributor.authorHu, H-
dc.contributor.authorZhou, Z-
dc.contributor.authorYiu, KH-
dc.contributor.authorZhang, S-
dc.contributor.authorXu, L-
dc.contributor.authorLi, K-
dc.contributor.authorYu, Z-
dc.date.accessioned2015-09-18T05:50:57Z-
dc.date.available2015-09-18T05:50:57Z-
dc.date.issued2015-
dc.identifier.citationArchives of Biochemistry and Biophysics, 2015, v. 586, p. 1-9-
dc.identifier.issn0003-9861-
dc.identifier.urihttp://hdl.handle.net/10722/217178-
dc.description.abstractCalpain plays an important role in myocardial ischemia/reperfusion (I/R) injury. PD150606, a nonpeptide, cell-permeable and noncompetitive calpain inhibitor, has been shown to have protective properties in ischemic disease. The aims of the present study were to investigate whether PD150606 could alleviate myocardial I/R injury and to examine the possible mechanisms involved. The I/R model was established in vivo in C57BL/6 mice and in vitro using neonatal mouse cardiomyocytes, respectively. To evaluate the protective effects of PD150606 on I/R injury, we measured the myocardial infarct area, apoptosis, and expression of cleaved caspase-3. We also investigated the underlying mechanisms by examining mitochondrial function as reflected by the ATP concentration, translocation of cytochrome c, dynamics of mPTP opening, and membrane potential (ΔΨm), coupled with calpain activity. Pretreatment with PD150606 significantly reduced the infarct area and apoptosis caused by I/R. PD150606 pretreatment also reduced mitochondrial dysfunction by inhibiting calpain activation. Moreover, we found that μ-calpain is the main contributor to I/R-induced calpain activation. Knockdown of μ-calpain with siRNA significantly reversed calpain activation, mitochondrial dysfunction, and cardiomyocyte apoptosis caused by I/R in vitro. Our results suggest that PD150606 may protect against I/R injury via preventing μ-calpain-induced mitochondrial apoptosis. © 2015 Elsevier Inc. All rights reserved.-
dc.languageeng-
dc.publisherAcademic Press. The Journal's web site is located at http://www.elsevier.com/locate/yabbi-
dc.relation.ispartofArchives of Biochemistry and Biophysics-
dc.titlePD150606 protects against ischemia/reperfusion injury by preventing μ-calpain-induced mitochondrial apoptosis.-
dc.typeArticle-
dc.identifier.emailYiu, KH: khkyiu@hku.hk-
dc.identifier.authorityYiu, KH=rp01490-
dc.identifier.doi10.1016/j.abb.2015.06.005-
dc.identifier.pmid26091952-
dc.identifier.scopuseid_2-s2.0-84942939445-
dc.identifier.hkuros254810-
dc.identifier.volume586-
dc.identifier.spage1-
dc.identifier.epage9-
dc.identifier.isiWOS:000365141900001-
dc.publisher.placeUnited States-

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