A Novel Role for Adipose Ephrin-B1 in Inflammatory Response

Takuya Mori, Norikazu Maeda, Kana Inoue, Ryohei Sekimoto, Yu Tsushima, Keisuke Matsuda, Masaya Yamaoka, Takayoshi Suganami, Hitoshi Nishizawa, Yoshihiro Ogawa, Tohru Funahashi, Iichiro Shimomura

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Aims:Ephrin-B1 (EfnB1) was selected among genes of unknown function in adipocytes or adipose tissue and subjected to thorough analysis to understand its role in the development of obesity.Methods and Results:EfnB1 mRNA and protein levels were significantly decreased in adipose tissues of obese mice and such reduction was mainly observed in mature adipocytes. Exposure of 3T3-L1 adipocytes to tumor necrosis factor-α (TNF-α) and their culture with RAW264.7 cells reduced EFNB1 levels. Knockdown of adipose EFNB1 increased monocyte chemoattractant protein-1 (Mcp-1) mRNA level and augmented the TNF-α-mediated THP-1 monocyte adhesion to adipocytes. Adenovirus-mediated adipose EFNB1-overexpression significantly reduced the increase in Mcp-1 mRNA level induced by coculture of 3T3-L1 adipocytes with RAW264.7 cells. Monocyte adherent assay showed that adipose EfnB1-overexpression significantly decreased the increase of monocyte adhesion by coculture with RAW264.7 cells. TNF-α-induced activation of extracellular signal-regulated kinase 1/2 (ERK1/2) was reduced by EFNB1-overexpression.Conclusions:EFNB1 contributes to the suppression of adipose inflammatory response. In obesity, reduction of adipose EFNB1 may accelerate the vicious cycle involved in adipose tissue inflammation.

Original languageEnglish
Article numbere76199
JournalPloS one
Volume8
Issue number10
DOIs
Publication statusPublished - Oct 1 2013
Externally publishedYes

Fingerprint

Ephrin-B1
adipocytes
Adipocytes
Tumor Necrosis Factor-alpha
Chemokine CCL2
inflammation
Tissue
tumor necrosis factors
Messenger RNA
monocytes
adipose tissue
Adhesion
Adipose Tissue
Monocytes
coculture
Coculture Techniques
Mitogen-Activated Protein Kinase 3
adhesion
obesity
Obesity

All Science Journal Classification (ASJC) codes

  • Biochemistry, Genetics and Molecular Biology(all)
  • Agricultural and Biological Sciences(all)
  • General

Cite this

Mori, T., Maeda, N., Inoue, K., Sekimoto, R., Tsushima, Y., Matsuda, K., ... Shimomura, I. (2013). A Novel Role for Adipose Ephrin-B1 in Inflammatory Response. PloS one, 8(10), [e76199]. https://doi.org/10.1371/journal.pone.0076199

A Novel Role for Adipose Ephrin-B1 in Inflammatory Response. / Mori, Takuya; Maeda, Norikazu; Inoue, Kana; Sekimoto, Ryohei; Tsushima, Yu; Matsuda, Keisuke; Yamaoka, Masaya; Suganami, Takayoshi; Nishizawa, Hitoshi; Ogawa, Yoshihiro; Funahashi, Tohru; Shimomura, Iichiro.

In: PloS one, Vol. 8, No. 10, e76199, 01.10.2013.

Research output: Contribution to journalArticle

Mori, T, Maeda, N, Inoue, K, Sekimoto, R, Tsushima, Y, Matsuda, K, Yamaoka, M, Suganami, T, Nishizawa, H, Ogawa, Y, Funahashi, T & Shimomura, I 2013, 'A Novel Role for Adipose Ephrin-B1 in Inflammatory Response', PloS one, vol. 8, no. 10, e76199. https://doi.org/10.1371/journal.pone.0076199
Mori T, Maeda N, Inoue K, Sekimoto R, Tsushima Y, Matsuda K et al. A Novel Role for Adipose Ephrin-B1 in Inflammatory Response. PloS one. 2013 Oct 1;8(10). e76199. https://doi.org/10.1371/journal.pone.0076199
Mori, Takuya ; Maeda, Norikazu ; Inoue, Kana ; Sekimoto, Ryohei ; Tsushima, Yu ; Matsuda, Keisuke ; Yamaoka, Masaya ; Suganami, Takayoshi ; Nishizawa, Hitoshi ; Ogawa, Yoshihiro ; Funahashi, Tohru ; Shimomura, Iichiro. / A Novel Role for Adipose Ephrin-B1 in Inflammatory Response. In: PloS one. 2013 ; Vol. 8, No. 10.
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