C. elegans major fats are stored in vesicles distinct from lysosome-related organelles.
C. elegans major fats are stored in vesicles distinct from lysosome-related organelles.
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DOI:
10.1016/j.cmet.2009.10.002
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发表时间:
2009-11
期刊:
影响因子:
29
通讯作者:
Ruvkun G
中科院分区:
文献类型:
--
作者:
O'Rourke EJ;Soukas AA;Carr CE;Ruvkun G
Genetic conservation allows ancient features of fat storage endocrine pathways to be explored in C. elegans. Multiple studies have used Nile red or BODIPY-labeled fatty acids to identify regulators of fat mass. When mixed with their food, E. coli bacteria, Nile red, and BODIPY-labeled fatty acids stain multiple spherical cellular structures in the C. elegans major fat storage organ, the intestine. However, here we demonstrate that, in the conditions previously reported, the lysosome-related organelles stained by Nile red and BODIPY-labeled fatty acids are not the C. elegans major fat storage compartment. We show that the major fat stores are contained in a distinct cellular compartment that is not stained by Nile red. Using biochemical assays, we validate oil red O staining as a method to assess major fat stores in C. elegans, allowing for efficient and accurate genetic and functional genomic screens for genes that control fat accumulation at the organismal level.
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