Microlipophagy from Simple to Complex Eukaryotes

Lipophagy is a selective degradation of lipid droplets in lysosomes or vacuoles. Apart from its role in generating energy and free fatty acids for membrane repair, growth, and the formation of new membranes, lipophagy emerges as a key player in other cellular processes and disease pathogenesis. Whil...

Full description

Saved in:
Bibliographic Details
Main Authors: Ravinder Kumar, Colin Arrowood, Micah B. Schott, Taras Y. Nazarko
Format: Article
Language:English
Published: MDPI AG 2025-01-01
Series:Cells
Subjects:
Online Access:https://www.mdpi.com/2073-4409/14/2/141
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1832588837562351616
author Ravinder Kumar
Colin Arrowood
Micah B. Schott
Taras Y. Nazarko
author_facet Ravinder Kumar
Colin Arrowood
Micah B. Schott
Taras Y. Nazarko
author_sort Ravinder Kumar
collection DOAJ
description Lipophagy is a selective degradation of lipid droplets in lysosomes or vacuoles. Apart from its role in generating energy and free fatty acids for membrane repair, growth, and the formation of new membranes, lipophagy emerges as a key player in other cellular processes and disease pathogenesis. While fungal, plant, and algal cells use microlipophagy, the most prominent form of lipophagy in animal cells is macrolipophagy. However, recent studies showed that animal cells can also use microlipophagy to metabolize their lipid droplets. Therefore, to no surprise, microlipophagy is conserved from simple unicellular to the most complex multicellular eukaryotes, and many eukaryotic cells can operate both forms of lipophagy. Macrolipophagy is the most studied and better understood at the molecular level, while our understanding of microlipophagy is very sparse. This review will discuss microlipophagy from the perspective of its conservation in eukaryotes and its importance in diseases. To better appreciate the conserved nature of microlipophagy, different organisms and types of cells in which microlipophagy has been reported are also shown in a tabular form. We also point toward the gaps in our understanding of microlipophagy, including the signaling behind microlipophagy, especially in the cells of complex multicellular organisms.
format Article
id doaj-art-5d5285b2162e418a8e98885c66f3d14f
institution Kabale University
issn 2073-4409
language English
publishDate 2025-01-01
publisher MDPI AG
record_format Article
series Cells
spelling doaj-art-5d5285b2162e418a8e98885c66f3d14f2025-01-24T13:26:50ZengMDPI AGCells2073-44092025-01-0114214110.3390/cells14020141Microlipophagy from Simple to Complex EukaryotesRavinder Kumar0Colin Arrowood1Micah B. Schott2Taras Y. Nazarko3Department of Clinical Pharmacy and Translational Science, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN 38163, USADepartment of Biology, Georgia State University, Atlanta, GA 30303, USADepartment of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USADepartment of Biology, Georgia State University, Atlanta, GA 30303, USALipophagy is a selective degradation of lipid droplets in lysosomes or vacuoles. Apart from its role in generating energy and free fatty acids for membrane repair, growth, and the formation of new membranes, lipophagy emerges as a key player in other cellular processes and disease pathogenesis. While fungal, plant, and algal cells use microlipophagy, the most prominent form of lipophagy in animal cells is macrolipophagy. However, recent studies showed that animal cells can also use microlipophagy to metabolize their lipid droplets. Therefore, to no surprise, microlipophagy is conserved from simple unicellular to the most complex multicellular eukaryotes, and many eukaryotic cells can operate both forms of lipophagy. Macrolipophagy is the most studied and better understood at the molecular level, while our understanding of microlipophagy is very sparse. This review will discuss microlipophagy from the perspective of its conservation in eukaryotes and its importance in diseases. To better appreciate the conserved nature of microlipophagy, different organisms and types of cells in which microlipophagy has been reported are also shown in a tabular form. We also point toward the gaps in our understanding of microlipophagy, including the signaling behind microlipophagy, especially in the cells of complex multicellular organisms.https://www.mdpi.com/2073-4409/14/2/141autophagychaperon-mediated autophagylipid dropletslipophagymacroautophagymacrolipophagy
spellingShingle Ravinder Kumar
Colin Arrowood
Micah B. Schott
Taras Y. Nazarko
Microlipophagy from Simple to Complex Eukaryotes
Cells
autophagy
chaperon-mediated autophagy
lipid droplets
lipophagy
macroautophagy
macrolipophagy
title Microlipophagy from Simple to Complex Eukaryotes
title_full Microlipophagy from Simple to Complex Eukaryotes
title_fullStr Microlipophagy from Simple to Complex Eukaryotes
title_full_unstemmed Microlipophagy from Simple to Complex Eukaryotes
title_short Microlipophagy from Simple to Complex Eukaryotes
title_sort microlipophagy from simple to complex eukaryotes
topic autophagy
chaperon-mediated autophagy
lipid droplets
lipophagy
macroautophagy
macrolipophagy
url https://www.mdpi.com/2073-4409/14/2/141
work_keys_str_mv AT ravinderkumar microlipophagyfromsimpletocomplexeukaryotes
AT colinarrowood microlipophagyfromsimpletocomplexeukaryotes
AT micahbschott microlipophagyfromsimpletocomplexeukaryotes
AT tarasynazarko microlipophagyfromsimpletocomplexeukaryotes