| Item type |
文献 / Documents(1) |
| 公開日 |
2018-11-12 |
| アクセス権 |
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|
アクセス権 |
open access |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| 出版社版DOI |
|
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|
関連識別子 |
https://doi.org/10.1038/s41598-017-19052-9 |
|
|
関連名称 |
10.1038/s41598-017-19052-9 |
| 出版タイプ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| タイトル |
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|
タイトル |
PERK-mediated translational control is required for collagen secretion in chondrocytes |
| 著者 |
ヒサナガ, サトシ
三宅, 雅人
タニウチ, シュウスケ
親泊, 美帆
森本, 雅俊
佐藤, 亮祐
廣瀬, 隼
ミズタ, ヒロシ
親泊, 政一
|
| 抄録 |
|
|
内容記述 |
As chondrocytes are highly secretory and they experience a variety of stresses, physiological unfolded protein response (UPR) signalling is essential for extracellular matrix (ECM) secretion and chondrogenesis. In the three branches of the UPR pathway, PERK governs the translational attenuation and transcriptional upregulation of amino acid and redox metabolism and induction of apoptosis. It was previously demonstrated that a defect of the PERK branch of the UPR signalling pathway causes the accumulation of unfolded proteins, leading to cell death without perturbing endoplasmic reticulum (ER)-to-Golgi transport in pancreatic β cells. However, little is known about the role of PERK in chondrocytes. In this study, we found that PERK signalling is activated in chondrocytes, and inhibition of PERK reduces collagen secretion despite causing excessive collagen synthesis in the ER. Perk−/− mice displayed reduced collagen in articular cartilage but no differences in chondrocyte proliferation or apoptosis compared to the findings in wild-type mice. PERK inhibition increases misfolded protein levels in the ER, which largely hinder ER-to-Golgi transport. These results suggest that the translational control mediated by PERK is a critical determinant of ECM secretion in chondrocytes. |
| 書誌情報 |
en : Scientific Reports
巻 8,
p. 773,
発行日 2018-01-15
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| 収録物ID |
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収録物識別子タイプ |
ISSN |
|
収録物識別子 |
20452322 |
| 出版者 |
|
|
出版者 |
Springer Nature |
| 備考 |
|
|
値 |
Supplemental figures : srep_8_773_s1.pdf |
| 権利情報 |
|
|
権利情報 |
© The Author(s) 2018 This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
| EID |
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|
識別子 |
337839 |
| 言語 |
|
|
言語 |
eng |
srep_8_773.pdf (7.7 MB)
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