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DJ-1 degrades transthyretin and an inactive form of DJ-1 is secreted in familial amyloidotic polyneuropathy.

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Title: DJ-1 degrades transthyretin and an inactive form of DJ-1 is secreted in familial amyloidotic polyneuropathy.
Authors: Koide-Yoshida, Shizuyo Browse this author
Niki, Takeshi Browse this author →KAKEN DB
Ueda, Mitsuharu Browse this author →KAKEN DB
Himeno, Shingo Browse this author
Taira, Takahiro Browse this author →KAKEN DB
Iguchi-Ariga, Sanae M M Browse this author →KAKEN DB
Ando, Yukio Browse this author
Ariga, Hiroyoshi Browse this author →KAKEN DB
Keywords: DJ-1
familial amyloidotic polyneuropathy
transthyretin
Issue Date: Jun-2007
Publisher: Spandidos Publications
Journal Title: International journal of molecular medicine
Volume: 19
Issue: 6
Start Page: 885
End Page: 893
PMID: 17487420
Abstract: DJ-1 plays roles in transcriptional regulation and anti-oxidative stress, and loss of its function is thought to result in the onset of Parkinson's disease. DJ-1 has a protease-like structure and transthyretin (TTR), a protein causing familial amyloidotic polyneuropathy (FAP), was identified as a substrate for DJ-1 protease in this study. Both TTR and DJ-1 were secreted into the culture medium under normal conditions, and secreted TTR was not aggregated. Under oxidative conditions, TTR but not DJ-1 was secreted into the culture medium, resulting in aggregation. Mirror images of both the expression patterns and solubility of DJ-1 and TTR were observed in tissues of FAP patients, and an unoxidized form of DJ-1, an inactive form, was secreted into the serum of FAP patients. These results suggest that oxidative stress to cells abrogates secretion of DJ-1 and that secreted DJ-1 degrades aggregated TTR to protect against the onset of FAP.
Type: article
URI: http://hdl.handle.net/2115/53728
Appears in Collections:薬学研究院 (Faculty of Pharmaceutical Sciences) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 有賀 寛芳

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