Abstract Title:

Water-Soluble Extract of Pacific Krill Prevents Triglyceride Accumulation in Adipocytes by Suppressing PPARγ and C/EBPα Expression.

Abstract Source:

PLoS One. 2011;6(7):e21952. Epub 2011 Jul 7. PMID: 21760932

Abstract Author(s):

Hidetoshi Yamada, Tomohiro Ueda, Akira Yano

Article Affiliation:

Iwate Biotechnology Research Center, Kitakami, Iwate, Japan.


BACKGROUND: Pacific Krill (Euphausia pacifica) are small, red crustaceans, similar to shrimp, that flourish in the North Pacific and are eaten in Japan.

METHODS AND FINDINGS: We investigated the effect of a water-soluble extract of Pacific Krill on adipocytes and discovered that this extract suppressed triglyceride accumulation in adipocytes. Furthermore, the water-soluble extract of Pacific Krill suppressed the expression of two master regulators of adipocyte differentiation, peroxisome proliferator-activated receptor gamma (PPARγ) and CCAAT enhancer binding protein alpha (C/EBPα). C/EBPβ promotes PPARγ and C/EBPα expression, but the water-soluble extract of Pacific Krill did not inhibit the expression of C/EBPβ or C/EBPβ-mediated transcriptional activation. The Pacific Krill extract was more effective than a PPARγantagonist in suppressing PPARγ and C/EBPα expression.

CONCLUSIONS: These results indicated that the water-soluble extract of Pacific Krill was not simply a PPARγ antagonist, but that it prevented triglyceride accumulation in adipocytes by suppression of PPARγ and C/EBPα via a pathway that is independent of C/EBPβ.

Study Type : In Vitro Study

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