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CIDE proteins and metabolic disorders

Jingyi Gong1, Zhiqi Sun, Peng Li

  • 1Protein Science Laboratory of Ministry of Education, Department of Biological Sciences and Biotechnology, Tsinghua University, Beijing, China.

Current Opinion in Lipidology
|March 12, 2009
PubMed
Abstract

Insights

Cell death-inducing DFF45-like effector (CIDE) proteins regulate metabolism and energy homeostasis. Their dysregulation is linked to obesity, diabetes, and liver steatosis, making them potential therapeutic targets.

Area of Science:

  • Metabolic Regulation
  • Molecular Biology
  • Endocrinology

Background:

  • The cell death-inducing DFF45-like effector (CIDE) family comprises Cidea, Cideb, and Fsp27 (Cidec).
  • These proteins are key regulators of diverse metabolic processes.
  • Their roles in metabolic disorders are increasingly recognized.

Purpose of the Study:

  • To review the physiological functions of CIDE proteins.
  • To summarize their transcriptional regulation.
  • To elucidate their mechanisms in metabolic disorder development.

Main Methods:

  • Literature review of studies on CIDE proteins.
  • Analysis of animal models with CIDE gene deficiencies.
  • Examination of CIDE protein localization and function in adipocytes and hepatocytes.

Main Results:

  • CIDE-deficient animals exhibit lean phenotypes, increased energy expenditure, and resistance to obesity and insulin resistance.
  • CIDE proteins localize to lipid droplets and endoplasmic reticulum, impacting lipid metabolism via AMPK stability, lipogenesis, and lipid droplet formation.
  • CIDE protein expression correlates with obesity, liver steatosis, and insulin resistance in rodents and humans.

Conclusions:

  • CIDE proteins are critical for energy homeostasis.
  • They are implicated in the pathogenesis of obesity, diabetes, and liver steatosis.
  • CIDE proteins represent promising molecular targets for therapeutic interventions.

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