Acute stress response in calorie-restricted rats to lipopolysaccharide- induced inflammation

Tomoshi Tsuchiya, Yoshikazu Higami, Toshimitsu Komatsu, Kenji Tanaka, Sumihisa Honda, Haruyoshi Yamaza, Takuya Chiba, Hiroyoshi Ayabe, Isao Shimokawa

研究成果: Article

17 引用 (Scopus)

抄録

Calorie restriction (CR) reduces morbidity and mortality in a wide range of organisms, possibly through the stress response machinery. We analyzed the acute phase response of CR rats to lipopolysaccharide (LPS)-induced inflammatory challenge. Six-month-old male F344 rats, fed ad libitum (AL) or a 30% calorie-restricted diet from 6 weeks of age, received an intravenous LPS injection and were then sacrificed between 0 and 8 h. CR attenuated liver injury without reduction in the plasma concentrations of proinflammatory cytokines or nitric oxide (NO). Western blotting analysis of liver tissue demonstrated that CR did not affect the degradation of cytoplasmic I-κB and subsequent nuclear translocation of NF-κB, a key transcription factor after inflammatory challenge. We also analyzed the liver gene expression profiles at 0, 1 and 4 h with DNA arrays and cluster analysis. Compared with the AL group, CR upregulated the expression of several genes for inflammatory mediators or their related molecules at 0 h, but not at 1 or 4 h. CR downregulated genes for energy or xenobiotic metabolism and stress response proteins at 0 h. At 1 h, the relatively downregulated genes by CR were those for proteases and the ubiquitin-proteasome pathway. The present results suggest that CR attenuates liver injury without suppression of the proinflammatory response, and that the protective effect emerges from constitutively, rather than inductively, expressed gene products.

元の言語English
ページ(範囲)568-579
ページ数12
ジャーナルMechanisms of Ageing and Development
126
発行部数5
DOI
出版物ステータスPublished - 2005 5
外部発表Yes

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Liver
Lipopolysaccharides
Rats
Genes
Inflammation
Down-Regulation
Acute-Phase Reaction
Inbred F344 Rats
Wounds and Injuries
Cluster analysis
Xenobiotics
Proteasome Endopeptidase Complex
Nutrition
Ubiquitin
Heat-Shock Proteins
Oligonucleotide Array Sequence Analysis
Transcriptome
Metabolism
Gene expression
Intravenous Injections

ASJC Scopus subject areas

  • Ageing
  • Biochemistry
  • Developmental Biology
  • Developmental Neuroscience

これを引用

Tsuchiya, T., Higami, Y., Komatsu, T., Tanaka, K., Honda, S., Yamaza, H., ... Shimokawa, I. (2005). Acute stress response in calorie-restricted rats to lipopolysaccharide- induced inflammation. Mechanisms of Ageing and Development, 126(5), 568-579. https://doi.org/10.1016/j.mad.2004.11.007

Acute stress response in calorie-restricted rats to lipopolysaccharide- induced inflammation. / Tsuchiya, Tomoshi; Higami, Yoshikazu; Komatsu, Toshimitsu; Tanaka, Kenji; Honda, Sumihisa; Yamaza, Haruyoshi; Chiba, Takuya; Ayabe, Hiroyoshi; Shimokawa, Isao.

:: Mechanisms of Ageing and Development, 巻 126, 番号 5, 05.2005, p. 568-579.

研究成果: Article

Tsuchiya, T, Higami, Y, Komatsu, T, Tanaka, K, Honda, S, Yamaza, H, Chiba, T, Ayabe, H & Shimokawa, I 2005, 'Acute stress response in calorie-restricted rats to lipopolysaccharide- induced inflammation', Mechanisms of Ageing and Development, 巻. 126, 番号 5, pp. 568-579. https://doi.org/10.1016/j.mad.2004.11.007
Tsuchiya, Tomoshi ; Higami, Yoshikazu ; Komatsu, Toshimitsu ; Tanaka, Kenji ; Honda, Sumihisa ; Yamaza, Haruyoshi ; Chiba, Takuya ; Ayabe, Hiroyoshi ; Shimokawa, Isao. / Acute stress response in calorie-restricted rats to lipopolysaccharide- induced inflammation. :: Mechanisms of Ageing and Development. 2005 ; 巻 126, 番号 5. pp. 568-579.
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