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Lipid-derived Compounds in the Human Body01:31

Lipid-derived Compounds in the Human Body

Fats and lipids are crucial components in the human body. Some lipid-derived compounds, such as fat-soluble vitamins, eicosanoids, lipoproteins, and glycolipids, also play unique roles to support various  biological processes .
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Lipids are an essential component of a balanced human diet. Triglycerides, which make up the majority of dietary lipids, are found in both saturated fats—commonly present in meat, dairy products, and certain tropical plants like coconut, and hydrogenated oils such as margarine and baking shortenings (trans fats)—and unsaturated fats, which are abundant in seeds, nuts, olive oil, and most vegetable oils. The main sources of cholesterol include egg yolks, various meats and organ meats, shellfish,...
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Quantification of Endothelial Fatty Acid Uptake using Fluorescent Fatty Acid Analogs
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Mechanisms by which fatty acids regulate leucocyte function.

Thais Martins de Lima1, Renata Gorjão, Elaine Hatanaka

  • 1Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP, Brazil.

Clinical Science (London, England : 1979)
|June 9, 2007
PubMed
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Fatty acids (FAs) impact immune cells like lymphocytes and neutrophils, influencing inflammation. Understanding these effects can lead to better treatments for immune dysfunction.

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Published on: March 29, 2017

Area of Science:

  • Immunology
  • Cell Biology
  • Biochemistry

Background:

  • Fatty acids (FAs) are known to influence leukocyte function, thereby modulating immune and inflammatory responses.
  • Leukocytes, including lymphocytes, neutrophils, and macrophages, play critical roles in the immune system.

Purpose of the Study:

  • To review the diverse effects of fatty acids on key leukocyte functions.
  • To elucidate the molecular mechanisms through which fatty acids exert their influence on immune cells.
  • To explore the therapeutic potential of specific fatty acids for immune-related conditions.

Main Methods:

  • Literature review focusing on studies investigating fatty acid interactions with leukocytes.
  • Analysis of mechanisms including lipid mediator production, intracellular signaling, and Toll-like receptor (TLR) binding.
  • Examination of fatty acid effects on gene expression, transcription factors, cell death, and reactive species production.

Main Results:

  • Fatty acids modulate lymphocyte, neutrophil, and macrophage functions through various molecular pathways.
  • Mechanisms involve altering lipid mediator synthesis, intracellular signaling cascades, and interactions with lipid-raft-associated proteins.
  • Fatty acids influence TLR binding, gene expression, transcription factor activation, and the production of reactive oxygen and nitrogen species.

Conclusions:

  • A comprehensive understanding of fatty acid mechanisms in different leukocyte types is crucial for optimizing their therapeutic use.
  • Specific fatty acids hold promise for treating patients with impaired immune function.
  • Further research into precise molecular actions can significantly improve the clinical application of fatty acids and their derivatives in managing inflammatory responses.