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  1. 医学部
  1. 医学部
  2. 学術雑誌掲載論文  (医学部)
  1. 農学部
  1. 農学部
  2. 学術雑誌掲載論文 (農学部)

Down-regulation of colon mucin production induced by Eimeria pragensis infection in mice

http://hdl.handle.net/10458/0002001711
http://hdl.handle.net/10458/0002001711
bb9a5652-0718-4ce0-b883-4eaf29a4a902
名前 / ファイル ライセンス アクション
fpara-1-1621486.pdf Fulltext (8.8 MB)
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Item type 学術雑誌論文 / Journal Article(1)
公開日 2025-08-27
タイトル
タイトル Down-regulation of colon mucin production induced by Eimeria pragensis infection in mice
言語 en
言語
言語 eng
キーワード
言語 en
キーワード colitis
キーワード
言語 en
キーワード Eimeria pragensis
キーワード
言語 en
キーワード goblet cell dysfunction
キーワード
言語 en
キーワード mouse model
キーワード
言語 en
キーワード mucin down-regulation
資源タイプ
資源タイプ journal article
アクセス権
アクセス権 open access
著者 Setia, Yulia Dwi

× Setia, Yulia Dwi

en Setia, Yulia Dwi
University of Miyazaki

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小久保, 美緒

× 小久保, 美緒

WEKO 34833
e-Rad_Researcher 00910689

ja 小久保, 美緒
宮崎大学

ja-Kana コクボ, ミオ

en Kokubo-Tanaka, Mio
University of Miyazaki

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田中, 龍聖

× 田中, 龍聖

WEKO 35271
e-Rad_Researcher 70723550

ja 田中, 龍聖
宮崎大学

ja-Kana タナカ, リュウセイ

en Tanaka, Ryusei
University of Miyazaki

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Yoshida, Akemi

× Yoshida, Akemi

en Yoshida, Akemi
University of Miyazaki

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長安, 英治

× 長安, 英治

WEKO 28684
e-Rad_Researcher 20524193

ja 長安, 英治
宮崎大学

ja-Kana ナガヤス, エイジ

en Nagayasu, Eiji
University of Miyazaki

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Ahmadi, Parnian

× Ahmadi, Parnian

en Ahmadi, Parnian
University of Miyazaki

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吉田, 彩子

× 吉田, 彩子

WEKO 27924
e-Rad_Researcher 20343486

ja 吉田, 彩子
宮崎大学

ja-Kana ヨシダ, アヤコ

en Yoshida, Ayako
University of Miyazaki

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丸山, 治彦

× 丸山, 治彦

WEKO 3231
e-Rad_Researcher 90229625

ja 丸山, 治彦
宮崎大学

ja-Kana マルヤマ, ハルヒコ

en Maruyama, Haruhiko
University of Miyazaki

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抄録
内容記述タイプ Abstract
内容記述 Introduction: Eimeria pragensis, an intestinal protozoa infecting mice, induces colitis and reduces goblet cell numbers in the large intestine. In the present study, we investigated the pathogenesis and the mechanisms underlying goblet cell down-regulation in the early phase of infection.

Methods: Male C57BL/6 mice were orally infected with 300 oocysts. Fecal oocyst shedding and body weight were monitored daily. Colon tissues were collected at 3, 8, and 13 days post-infection (dpi) to assess pathological changes. Parasite burden was assessed by histological analysis (H&E staining) and qPCR targeting 5S rRNA. Goblet cells were visualized using PAS-Alcian Blue staining and Muc2 immunohistochemistry. To elucidate mechanisms of goblet cell dysfunction, we performed RNA sequencing of large intestine tissue to examine host as well as parasite transcriptomes.

Results: Fecal oocyst excretion peaked at 8–9 dpi. Body weight decreased from 6 to 11 dpi, with recovery after 12 dpi. Maximal parasite accumulation in the proximal colon was observed at 8 dpi in histological examination as well as qPCR. Colon length was significantly shortened at 3 dpi. Goblet cell area significantly reduced at 8 dpi (p < 0.05). RNA sequencing of infected large intestines revealed that E. pragensis produced enzymes that were known to degrade mucin and tight junctions, and proteins that could activate the Notch–Hes1 signaling pathway. As for host responses, genes associated with Th1-type inflammation, epithelial barrier disruption, and immune regulation were up-regulated as early as 3 dpi.

Discussion: Our findings suggested that E. pragensis infection induces a mucosal barrier dysfunction in the early phase of the infection, which possibly causes the tissue invasion of bacteria in the large intestine. Th1-type inflammatory response, thus induced, reduces goblet cell numbers and mucin production. This model provides valuable insight into the mechanisms of mucosal barrier disruption during protozoan infection.
言語 en
書誌情報 en : Frontiers in Parasitology

巻 4, p. 1621486, 発行日 2025-06-24
出版者
出版者 Frontiers Media S.A.
言語 en
ISSN
収録物識別子タイプ EISSN
収録物識別子 28132424
DOI
関連タイプ isVersionOf
識別子タイプ DOI
関連識別子 https://doi.org/10.3389/fpara.2025.1621486
権利
言語 en
権利情報 © 2025 Setia, Kokubo-Tanaka, Tanaka, Yoshida, Nagayasu, Ahmadi, Yoshida and Maruyama.
著者版フラグ
出版タイプ VoR
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