Journal article
USP47 and C Terminus of Hsp70-Interacting Protein (CHIP) Antagonistically Regulate Katanin-p60-Mediated Axonal Growth
The Journal of neuroscience, v 33(31), pp 12728-12738
31 Jul 2013
PMID: 23904609
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Katanin is a heterodimeric enzyme that severs and disassembles microtubules. While the p60 subunit has the enzyme activity, the p80 subunit regulates the p60 activity. The microtubule-severing activity of katanin plays an essential role in axonal growth. However, the mechanisms by which neuronal cells regulate the expression of katanin-p60 remains unknown. Here we showed that USP47 and C terminus of Hsp70-interacting protein (CHIP) antagonistically regulate the stability of katanin-p60 and thereby axonal growth. USP47 was identified as a katanin-p60-specific deubiquitinating enzyme for its stabilization. We also identified CHIP as a ubiquitin E3 ligase that promotes proteasome-mediated degradation of katanin-p60. Moreover, USP47 promoted axonal growth of cultured rat hippocampal neurons, whereas CHIP inhibited it. Significantly, treatment with basic fibroblast growth factor (bFGF), an inducer of axonal growth, increased the levels of USP47 and katanin-p60, but not CHIP. Consistently, bFGF treatment resulted in a marked decrease in the level of ubiquitinated katanin-p60 and thereby in the promotion of axonal growth. On the other hand, the level of USP47, but not CHIP, decreased concurrently with that of katanin-p60 as axons reached their target cells. These results indicate that USP47 plays a crucial role in the control of axonal growth during neuronal development by antagonizing CHIP-mediated katanin-p60 degradation.
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Details
- Title
- USP47 and C Terminus of Hsp70-Interacting Protein (CHIP) Antagonistically Regulate Katanin-p60-Mediated Axonal Growth
- Creators
- Seung Wook Yang - School of Biological Sciences, College of Natural Sciences, Seoul National University, Seoul 151-742, KoreaKyu Hee Oh - School of Biological Sciences, College of Natural Sciences, Seoul National University, Seoul 151-742, KoreaEsther Park - School of Biological Sciences, College of Natural Sciences, Seoul National University, Seoul 151-742, KoreaHyun Min Chang - School of Biological Sciences, College of Natural Sciences, Seoul National University, Seoul 151-742, KoreaJung Mi Park - School of Biological Sciences, College of Natural Sciences, Seoul National University, Seoul 151-742, KoreaMin Woo Seong - School of Biological Sciences, College of Natural Sciences, Seoul National University, Seoul 151-742, KoreaSeung Hyeun Ka - School of Biological Sciences, College of Natural Sciences, Seoul National University, Seoul 151-742, KoreaWoo Keun Song - Department of Biological Sciences, Gwangju Institute of Science and Technology, Gwangju 500-712, Korea, andDong Eun Park - School of Biological Sciences, College of Natural Sciences, Seoul National University, Seoul 151-742, KoreaPeter W Baas - Department of Neurobiology and Anatomy, Drexel University College of Medicine, Philadelphia, Pennsylvania 19129Young Joo Jeon - School of Biological Sciences, College of Natural Sciences, Seoul National University, Seoul 151-742, KoreaChin Ha Chung - School of Biological Sciences, College of Natural Sciences, Seoul National University, Seoul 151-742, Korea
- Publication Details
- The Journal of neuroscience, v 33(31), pp 12728-12738
- Publisher
- Society for Neuroscience
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Neurobiology and Anatomy
- Web of Science ID
- WOS:000322514500018
- Scopus ID
- 2-s2.0-84880789424
- Other Identifier
- 991014878219704721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Neurosciences