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Changes in CLIP3 expression after sciatic nerve injury in adult rats.
MedLine Citation:
PMID:  23014974     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
CLIP3 (cytoplasmic linker protein 3) is a 547 amino acid residue cytoplasmic protein that localises to Golgi stacks and tubulovesicular elements juxtaposed to Golgi cisternae. Composed of three Ank (ankyrin) repeats and two CAP-Gly (cytoskeleton-associated protein-glycine) domains, CLIP3 may function as a cytoplasmic linker protein that is involved in TGN-endosome dynamics. To define the expression and role of CLIP3 during peripheral nervous system degeneration and regeneration, we created an acute sciatic nerve injury (SNI) model in adult rats. Western blot analyses revealed prominent up-regulation of CLIP3 and PCNA (proliferating cell nuclear antigen) protein levels at 3 days after SNI. Immunohistochemistry displayed that the expression of CLIP3 was noticeably increased in the injured nerve. Immunofluorescence further revealed that the CLIP3 and PCNA proteins colocalised respectively with S100 in the cytoplasm of Schwann cells. The expression profile of the SC/neuron co-cultures demonstrated that CLIP3 and PCNA protein levels were markedly expressed during the early stage of myelination. These results suggest that CLIP3 is likely associated with the myelination of proliferating Schwann cells, and nerve tissue regeneration after peripheral nerve injury. CLIP3 and PCNA expression during early myelination may be related to the direct uptake and transport of lipids and cholesterol, which were derived from the degenerating myelin, by Schwann cells to prepare for the formation of myelin sheath-like structures around regenerated axons after SNI.
Authors:
Xiaolong Deng; Haixiang Wei; Dong Lou; Binbin Sun; Hailei Chen; Yi Zhang; Youhua Wang
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-9-27
Journal Detail:
Title:  Journal of molecular histology     Volume:  -     ISSN:  1567-2387     ISO Abbreviation:  J. Mol. Histol.     Publication Date:  2012 Sep 
Date Detail:
Created Date:  2012-9-27     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101193653     Medline TA:  J Mol Histol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Department of Orthopaedics, Affiliated Hospital of Nantong University, Nantong, 226001, People's Republic of China.
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