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Related Experiment Videos

S14: insights from knockout mice.

Laura T LaFave1, Lance B Augustin, Cary N Mariash

  • 1Division of Endocrinology and Diabetes, Department of Medicine, University of Minnesota, Minneapolis, Minnesota 55455, USA.

Endocrinology
|July 1, 2006
PubMed
Summary
This summary is machine-generated.

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Spot 14 (S14) protein influences fat production. Its absence decreased mammary gland fat synthesis but increased liver fat synthesis, suggesting a cytoplasmic role in lipogenesis.

Area of Science:

  • Biochemistry
  • Molecular Biology
  • Genetics

Background:

  • Spot 14 (S14) is a protein rapidly upregulated by lipogenic stimuli.
  • Previous research suggested S14's involvement in de novo lipogenesis.

Purpose of the Study:

  • To investigate the role of Spot 14 (S14) in lipogenesis using knockout mice.
  • To determine the tissue-specific effects of S14 absence on fat synthesis.

Main Methods:

  • Gene knockout of Spot 14 (S14) in mice.
  • Analysis of lipogenic phenotypes in different tissues, including the lactating mammary gland and liver.

Main Results:

  • S14 knockout decreased lipogenesis and medium-chain fatty acid production in the mammary gland.

Related Experiment Videos

  • Hepatic lipogenesis increased in S14 knockout mice, potentially due to compensation by S14-R.
  • S14 knockout did not alter lipogenic enzyme levels, suggesting a post-transcriptional role.

    • Conclusions:

    • Spot 14 (S14) plays a tissue-specific role in regulating lipogenesis.
    • S14 likely functions in the cytoplasm to modulate fat synthesis, rather than affecting gene transcription.