The human PINK1 locus is regulated in vivo by a non-coding natural antisense RNA during modulation of mitochondrial function

Camilla Scheele, Natasa Petrovic, Mohammad A Faghihi, Timo Lassmann, Katarina Fredriksson, Olav Rooyackers, Claes R Wahlestedt, Liam Good, James A. Timmons

Research output: Contribution to journalArticle

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Abstract

Background: Mutations in the PTEN induced putative kinase 1 (PINK1) are implicated in early-onset Parkinson's disease. PINK1 is expressed abundantly in mitochondria rich tissues, such as skeletal muscle, where it plays a critical role determining mitochondrial structural integrity in Drosophila. Results: Herein we characterize a novel splice variant of PINK1 (svPINK1) that is homologous to the C-terminus regulatory domain of the protein kinase. Naturally occurring non-coding antisense provides sophisticated mechanisms for diversifying genomes and we describe a human specific non-coding antisense expressed at the PINK1 locus (naPINK1). We further demonstrate that PINK1 varies in vivo when human skeletal muscle mitochondrial content is enhanced, supporting the idea that PINK1 has a physiological role in mitochondrion. The observation of concordant regulation of svPINK1 and naPINK1 during in vivo mitochondrial biogenesis was confirmed using RNAi, where selective targeting of naPINK1 results in loss of the PINK1 splice variant in neuronal cell lines. Conclusion: Our data presents the first direct observation that a mammalian non-coding antisense molecule can positively influence the abundance of a cis-transcribed mRNA under physiological abundance conditions. While our analysis implies a possible human specific and dsRNA-mediated mechanism for stabilizing the expression of svPINK1, it also points to a broader genomic strategy for regulating a human disease locus and increases the complexity through which alterations in the regulation of the PINK1 locus could occur.

Original languageEnglish
Article number74
JournalBMC Genomics
Volume8
DOIs
StatePublished - Apr 2 2007
Externally publishedYes

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Antisense RNA
Mitochondria
Skeletal Muscle
Observation
PTEN-induced putative kinase
Organelle Biogenesis
RNA Interference
Protein Kinases
Drosophila
Parkinson Disease
Genome
Cell Line
Messenger RNA
Mutation

ASJC Scopus subject areas

  • Medicine(all)

Cite this

The human PINK1 locus is regulated in vivo by a non-coding natural antisense RNA during modulation of mitochondrial function. / Scheele, Camilla; Petrovic, Natasa; Faghihi, Mohammad A; Lassmann, Timo; Fredriksson, Katarina; Rooyackers, Olav; Wahlestedt, Claes R; Good, Liam; Timmons, James A.

In: BMC Genomics, Vol. 8, 74, 02.04.2007.

Research output: Contribution to journalArticle

Scheele, Camilla ; Petrovic, Natasa ; Faghihi, Mohammad A ; Lassmann, Timo ; Fredriksson, Katarina ; Rooyackers, Olav ; Wahlestedt, Claes R ; Good, Liam ; Timmons, James A. / The human PINK1 locus is regulated in vivo by a non-coding natural antisense RNA during modulation of mitochondrial function. In: BMC Genomics. 2007 ; Vol. 8.
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