A novel adenoviral vector-mediated mouse model of Charcot-Marie-Tooth type 2D (CMT2D)

Ah Jung Seo, Youn Ho Shin, Seo Jin Lee, Doyeun Kim, Byung Sun Park, Sunghoon Kim, Kyu Ha Choi, Na Young Jeong, Chan Park, Ji Yeon Jang, Youngbuhm Huh, Junyang Jung

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

Charcot-Marie-Tooth disease type 2D is a hereditary axonal and glycyl-tRNA synthetase (GARS)-associated neuropathy that is caused by a mutation in GARS. Here, we report a novel GARS-associated mouse neuropathy model using an adenoviral vector system that contains a neuronal-specific promoter. In this model, we found that wild-type GARS is distributed to peripheral axons, dorsal root ganglion (DRG) cell bodies, central axon terminals, and motor neuron cell bodies. In contrast, GARS containing a G240R mutation was localized in DRG and motor neuron cell bodies, but not axonal regions, in vivo. Thus, our data suggest that the disease-causing G240R mutation may result in a distribution defect of GARS in peripheral nerves in vivo. Furthermore, a distributional defect may be associated with axonal degradation in GARS-associated neuropathies.

Original languageEnglish
Pages (from-to)121-128
Number of pages8
JournalJournal of Molecular Histology
Volume45
Issue number2
DOIs
Publication statusPublished - 2014 Apr

Bibliographical note

Funding Information:
Acknowledgments We thank Dr. Paul Schimmel (Scripps Research Institute; La Jolla, CA) for kindly providing the WT and G240R mutant GARS clones. This work was supported by a Global Frontier Project Grant (2012M3A6A2011-0032149) from the National Research Foundation funded by the Ministry of Education, Science and Technology of Korea and a National Research Foundation of Korea (NRF) Grant funded by the Korean government (MEST; No. 20120009380).

All Science Journal Classification (ASJC) codes

  • Histology
  • Physiology
  • Cell Biology

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