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Overview of Lipid Metabolism01:24

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Lipid metabolism is a crucial process in the human body that involves the synthesis and degradation of lipids. This process is essential for energy production, cell membrane formation, and hormone production, among other functions.
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Lipolysis is the process of breaking down lipids, particularly triglycerides, into glycerol and fatty acids. This process typically occurs in the adipose tissue and is triggered by various hormones, including glucagon and...
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Updated: Nov 23, 2025

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Hormone-sensitive lipase: sixty years later.

Emeline Recazens1, Etienne Mouisel1, Dominique Langin2

  • 1Institute of Metabolic and Cardiovascular Diseases, Institut National de la Santé et de la Recherche Médicale (Inserm), UMR1297, 31432 Toulouse, France; University of Toulouse, Paul Sabatier University, UMR1297, Toulouse, France.

Progress in Lipid Research
|January 2, 2021
PubMed
Summary

Hormone-sensitive lipase (HSL) breaks down fats for energy. This review details HSL

Keywords:
Hormone-sensitive lipaselipidslipodystrophylipolysisobesity

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Area of Science:

  • Biochemistry
  • Molecular Biology
  • Metabolic Research

Background:

  • Hormone-sensitive lipase (HSL) is key for triacylglycerol breakdown in adipose tissue.
  • HSL exhibits unique structural domains and broad substrate specificity.
  • Recent findings highlight non-enzymatic roles of HSL in adipocytes.

Purpose of the Study:

  • To provide an updated review on HSL structure, expression, activity, and function.
  • To explore the therapeutic potential of targeting HSL.
  • To discuss the implications of HSL dysregulation in metabolic diseases.

Main Methods:

  • Literature review of structural, functional, and clinical studies on HSL.
  • Analysis of HSL isoform diversity and regulatory mechanisms.
  • Examination of HSL's role in various physiological and pathological conditions.

Main Results:

  • HSL isoforms differ in N-terminal regions and regulatory domains.
  • HSL's catalytic domain is conserved across species, but regulatory domains are unique.
  • Dysregulation of HSL is implicated in lipodystrophy, obesity, type 2 diabetes, and cachexia.

Conclusions:

  • HSL is a crucial enzyme with diverse substrates and functions, including non-enzymatic roles.
  • Targeting HSL with specific inhibitors offers therapeutic potential for metabolic disorders.
  • Understanding HSL's complex regulation is vital for addressing metabolic diseases.