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  1. 070 農学部, 大学院農学研究科
  2. 0701 学術論文

Physiological and Pathological Mitochondrial Clearance Is Related to Pectoralis Major Muscle Pathogenesis in Broilers With Wooden Breast Syndrome

http://hdl.handle.net/10091/00022221
http://hdl.handle.net/10091/00022221
8f83298e-18cb-4f48-a921-04cd9fb9197b
名前 / ファイル ライセンス アクション
2020_FrontPhysiol_11_579.pdf 2020_FrontPhysiol_11_579.pdf (4.1 MB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2020-06-22
タイトル
言語 en
タイトル Physiological and Pathological Mitochondrial Clearance Is Related to Pectoralis Major Muscle Pathogenesis in Broilers With Wooden Breast Syndrome
言語
言語 eng
キーワード
主題Scheme Other
主題 wooden breast syndrome
キーワード
主題Scheme Other
主題 pathology
キーワード
主題Scheme Other
主題 hypoxia
キーワード
主題Scheme Other
主題 mitochondria
キーワード
主題Scheme Other
主題 autophagy
キーワード
主題Scheme Other
主題 mitophagy
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
タイプ journal article
著者 Hosotani, Marina

× Hosotani, Marina

WEKO 109640

Hosotani, Marina

Search repository
Kawasaki, Takeshi

× Kawasaki, Takeshi

WEKO 109641

Kawasaki, Takeshi

Search repository
Hasegawa, Yasuhiro

× Hasegawa, Yasuhiro

WEKO 109642

Hasegawa, Yasuhiro

Search repository
Wakasa, Yui

× Wakasa, Yui

WEKO 109643

Wakasa, Yui

Search repository
Hoshino, Maki

× Hoshino, Maki

WEKO 109644

Hoshino, Maki

Search repository
Takahashi, Naoki

× Takahashi, Naoki

WEKO 109645

Takahashi, Naoki

Search repository
Ueda, Hiromi

× Ueda, Hiromi

WEKO 109646

Ueda, Hiromi

Search repository
Takaya, Tomohide

× Takaya, Tomohide

WEKO 109647

Takaya, Tomohide

Search repository
Iwasaki, Tomohito

× Iwasaki, Tomohito

WEKO 109648

Iwasaki, Tomohito

Search repository
Watanabe, Takafumi

× Watanabe, Takafumi

WEKO 109649

Watanabe, Takafumi

Search repository
信州大学研究者総覧へのリンク
氏名 Takaya, Tomohide
URL https://soar-rd.shinshu-u.ac.jp/profile/ja.yUcePUkh.html
出版者
出版者 Frontiers Media
引用
内容記述タイプ Other
内容記述 Frontiers in Pharmacology.11:579(2020)
書誌情報 Frontiers in Pharmacology

巻 11, p. 579, 発行日 2020-06-16
抄録
内容記述タイプ Abstract
内容記述 Wooden breast syndrome (WB) constitutes an emerging myopathy in the pectoralis major muscle (PM) of broiler chickens, characterized by myofiber hypertrophy and degeneration along with severe fibrosis. WB pathogenesis has been considered to involve hypoxia induced by rapid growth of the PM. In this study, we focused on mitochondrial morphology and dynamics in the myofibers, as these organelles are sensitive to damage by hypoxia, and examined the effects on WB pathogenesis. Specifically, the PMs of a flock of 35 broilers at 50 days of age were evaluated. First, the severity of disease in each bird was determined by measuring histopathological indices including the fibrotic area (FA) in the muscle and circularity of myofibers (CM). These values were 29.4 ± 9.6% and 0.70 ± 0.042, respectively, showing variety among the flock. Myofiber vacuolization was observed in all birds including numerous small- or large-rimmed vacuoles, with the former consisting of ultrastructurally autophagosome-like vacuoles engulfing degenerated mitochondria. The large-rimmed vacuoles frequently occurred in the PMs with more severe FA and CM, indicating a relationship between altered autophagy/mitophagy and WB severity. Next, the expression levels of hypoxia-adaptive and mitochondrial dynamics-related genes were analyzed, and their correlations with the histopathological indices were examined. The histopathological indices were negatively correlated with the expression of vascular endothelial growth factor A (VEGFA), indicating that less angiogenesis owing to weakened hypoxia-inducible factor signaling induces more severe WB pathology. In addition, the observed negative correlation with mitochondrial dynamics-related genes implied that WB pathology deteriorates concomitant with reduced mitochondrial dynamics. Furthermore, the expression of mitochondrial dynamics-related genes showed strong positive correlation with that of VEGFA and autophagy-/mitophagy-related genes. These results revealed that the PMs of broilers possess the mechanism of physiological clearance of mitochondria damaged by the hypoxia resulting from the continuous mitochondrial dynamics and autophagy/mitophagy accompanying rapid PM growth. In turn, the altered mitochondrial clearance induced by chronic hypoxia and the accumulation of damaged mitochondria likely underly the severe pathological features of WB.
資源タイプ(コンテンツの種類)
内容記述タイプ Other
内容記述 Article
ISSN
収録物識別子タイプ ISSN
収録物識別子 1663-9812
DOI
識別子タイプ DOI
関連識別子 https://doi.org/10.3389/fphys.2020.00579
関連名称 10.3389/fphys.2020.00579
権利
権利情報 © 2020 Hosotani, Kawasaki, Hasegawa, Wakasa, Hoshino, Takahashi, Ueda, Takaya, Iwasaki and Watanabe. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
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