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- Publisher Website: 10.1073/pnas.1106291108
- Scopus: eid_2-s2.0-79959344616
- PMID: 21606348
- WOS: WOS:000291341400053
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Article: PTEN-inducible kinase 1 (PINK1)/Park6 is indispensable for normal heart function
Title | PTEN-inducible kinase 1 (PINK1)/Park6 is indispensable for normal heart function |
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Authors | |
Keywords | Mitochonopathy Mitochondrial energetics Mitochondrial swelling |
Issue Date | 2011 |
Citation | Proceedings of the National Academy of Sciences of the United States of America, 2011, v. 108, n. 23, p. 9572-9577 How to Cite? |
Abstract | Oxidative stress is caused by an imbalance between reactive oxygen species (ROS) production and the ability of an organism to eliminate these toxic intermediates. Mutations in PTEN-inducible kinase 1 (PINK1) link mitochondrial dysfunction, increased sensitivity to ROS, and apoptosis in Parkinson's disease. Whereas PINK1 has been linked to the regulation of oxidative stress, the exact mechanism by which this occurs has remained elusive. Oxidative stress with associated mitochondrial dysfunction leads to cardiac dysfunction and heart failure (HF). We hypothesized that loss of PINK1 in the heart would have deleterious consequences on mitochondrial function. Here, we observed that PINK1 protein levels are markedly reduced in end-stage human HF. We also report that PINK1 localizes exclusively to the mitochondria. PINK1-/- mice develop left ventricular dysfunction and evidence of pathological cardiac hypertrophy as early as 2 mo of age. Of note, PINK1-/- mice have greater levels of oxidative stress and impaired mitochondrial function. There were also higher degrees of fibrosis, cardiomyocyte apoptosis, and a reciprocal reduction in capillary density associated with this baseline cardiac phenotype. Collectively, our in vivo data demonstrate that PINK1 activity is crucial for postnatal myocardial development, through its role in maintaining mitochondrial function, and redox homeostasis in cardiomyocytes. In conclusion, PINK1 possesses a distinct, nonredundant function in the surveillance and maintenance of cardiac tissue homeostasis. |
Persistent Identifier | http://hdl.handle.net/10722/292208 |
ISSN | 2023 Impact Factor: 9.4 2023 SCImago Journal Rankings: 3.737 |
PubMed Central ID | |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Billia, Filio | - |
dc.contributor.author | Hauck, Ludger | - |
dc.contributor.author | Konecny, Filip | - |
dc.contributor.author | Rao, Vivek | - |
dc.contributor.author | Shen, Jie | - |
dc.contributor.author | Mak, Tak Wah | - |
dc.date.accessioned | 2020-11-17T14:55:59Z | - |
dc.date.available | 2020-11-17T14:55:59Z | - |
dc.date.issued | 2011 | - |
dc.identifier.citation | Proceedings of the National Academy of Sciences of the United States of America, 2011, v. 108, n. 23, p. 9572-9577 | - |
dc.identifier.issn | 0027-8424 | - |
dc.identifier.uri | http://hdl.handle.net/10722/292208 | - |
dc.description.abstract | Oxidative stress is caused by an imbalance between reactive oxygen species (ROS) production and the ability of an organism to eliminate these toxic intermediates. Mutations in PTEN-inducible kinase 1 (PINK1) link mitochondrial dysfunction, increased sensitivity to ROS, and apoptosis in Parkinson's disease. Whereas PINK1 has been linked to the regulation of oxidative stress, the exact mechanism by which this occurs has remained elusive. Oxidative stress with associated mitochondrial dysfunction leads to cardiac dysfunction and heart failure (HF). We hypothesized that loss of PINK1 in the heart would have deleterious consequences on mitochondrial function. Here, we observed that PINK1 protein levels are markedly reduced in end-stage human HF. We also report that PINK1 localizes exclusively to the mitochondria. PINK1-/- mice develop left ventricular dysfunction and evidence of pathological cardiac hypertrophy as early as 2 mo of age. Of note, PINK1-/- mice have greater levels of oxidative stress and impaired mitochondrial function. There were also higher degrees of fibrosis, cardiomyocyte apoptosis, and a reciprocal reduction in capillary density associated with this baseline cardiac phenotype. Collectively, our in vivo data demonstrate that PINK1 activity is crucial for postnatal myocardial development, through its role in maintaining mitochondrial function, and redox homeostasis in cardiomyocytes. In conclusion, PINK1 possesses a distinct, nonredundant function in the surveillance and maintenance of cardiac tissue homeostasis. | - |
dc.language | eng | - |
dc.relation.ispartof | Proceedings of the National Academy of Sciences of the United States of America | - |
dc.subject | Mitochonopathy | - |
dc.subject | Mitochondrial energetics | - |
dc.subject | Mitochondrial swelling | - |
dc.title | PTEN-inducible kinase 1 (PINK1)/Park6 is indispensable for normal heart function | - |
dc.type | Article | - |
dc.description.nature | link_to_OA_fulltext | - |
dc.identifier.doi | 10.1073/pnas.1106291108 | - |
dc.identifier.pmid | 21606348 | - |
dc.identifier.pmcid | PMC3111326 | - |
dc.identifier.scopus | eid_2-s2.0-79959344616 | - |
dc.identifier.volume | 108 | - |
dc.identifier.issue | 23 | - |
dc.identifier.spage | 9572 | - |
dc.identifier.epage | 9577 | - |
dc.identifier.eissn | 1091-6490 | - |
dc.identifier.isi | WOS:000291341400053 | - |
dc.identifier.issnl | 0027-8424 | - |