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The expanding organelle lipidomes: current knowledge and challenges
Maria J Sarmento1, Alicia Llorente2,3,4, Toni Petan5
1Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, 1649-028, Lisbon, Portugal.
Cellular and Molecular Life Sciences : CMLS
|August 2, 2023
Summary
This review details organelle lipidomes, exploring lipid composition in cellular compartments like the nucleus and mitochondria. It highlights the complexity and dynamic nature of these lipid fingerprints in health and disease.
Area of Science:
- Cellular Biology
- Biochemistry
- Lipidomics
Background:
- Cell membrane lipids are crucial for cellular functions including energy production, signaling, and inflammation.
- Organelle lipidomes are defined by lipid synthesis, metabolism, trafficking, and homeostasis.
- Understanding organelle lipid composition is vital, yet challenging due to lipid complexity and variability.
Purpose of the Study:
- To review current knowledge on the lipid composition of mammalian cell organelles.
- To describe the lipidome dynamics in physiological and pathological states.
- To discuss challenges in mapping organelle lipidomes.
Main Methods:
- Literature review of existing studies on organelle lipidomics.
- Compilation of data on lipid composition across various cellular compartments.
- Analysis of lipidome changes in health and disease contexts.
Main Results:
- Summarizes lipid composition for nucleus, mitochondria, ER, Golgi, plasma membrane, and endocytic pathway organelles.
- Includes lipid profiles of extracellular vesicles and lamellar bodies.
- Presents examples of subcellular lipidome dynamics in health and disease.
Conclusions:
- Organelle lipidomes are complex and dynamic, varying significantly between different cellular compartments and conditions.
- Further research is needed to fully characterize and understand the implications of organelle lipidomes.
- Mapping organelle lipidomes presents significant challenges but is crucial for understanding cellular function and disease.
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