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Curcumin treatment recovery the decrease of protein phosphatase 2A subunit B induced by focal cerebral ischemia in Sprague-Dawley rats

Laboratory Animal Research volume 31, pages 134–138 (2015)Cite this article

Abstract

Curcumin provides various biological effects through its anti-inflammatory and antioxidant properties. Moreover, curcumin exerts a neuroprotective effect against ischemic condition-induced brain damage. Protein phosphatase 2A (PP2A) is a ubiquitous serine and threonine phosphatase with various cell functions and broad substrate specificity. Especially PP2A subunit B plays an important role in nervous system. This study investigated whether curcumin regulates PP2A subunit B expression in focal cerebral ischemia. Cerebral ischemia was induced surgically by middle cerebral artery occlusion (MCAO). Adult male rats were injected with either vehicle or curcumin (50 mg/kg) 1 h after MCAO and cerebral cortex tissues were isolated 24 h after MCAO. A proteomics study, reverse transverse-PCR and Western blot analyses were performed to examine PP2A subunit B expression levels. We identified a reduction in PP2A subunit B expression in MCAO-operated animals using a proteomic approach. However, curcumin treatment prevented injury-induced reductions in PP2A subunit B levels. Reverse transverse-PCR and Western blot analyses confirmed that curcumin treatment attenuated the injury-induced reduction in PP2A subunit B levels. These findings can suggest that the possibility that curcumin maintains levels of PP2A subunit B in response to cerebral ischemia, which likely contributes to the neuroprotective function of curcumin in cerebral ischemic injury.

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Acknowledgments

This work was supported by the National Research Foundation of Korea(NRF) grant funded by the Korea government(MEST)(NRF-2013R1A1A2007300).

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  1. These two authors contributed equally to this work.

Authors and Affiliations

  1. Department of Anatomy, College of Veterinary Medicine, Research Institute of Life Science, Gyeongsang National University, 501 Jinju-daero, Jinju, Gyeongnam, 660-701, Korea

    Fawad-Ali Shah, Dong-Ju Park, Sang-Ah Gim & Phil-Ok Koh

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  1. Fawad-Ali Shah
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  2. Dong-Ju Park
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  3. Sang-Ah Gim
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  4. Phil-Ok Koh
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Correspondence to Phil-Ok Koh.

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Shah, FA., Park, DJ., Gim, SA. et al. Curcumin treatment recovery the decrease of protein phosphatase 2A subunit B induced by focal cerebral ischemia in Sprague-Dawley rats. Lab Anim Res 31, 134–138 (2015). https://doi.org/10.5625/lar.2015.31.3.134

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  • DOI: https://doi.org/10.5625/lar.2015.31.3.134

Keywords

  • Curcumin
  • neuroprotection
  • protein phosphatase 2A subunit B

Laboratory Animal Research

ISSN: 2233-7660