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  Spastic paraplegia-linked phospholipase PAPLA1 is necessary for development, reproduction, and energy metabolism in Drosophila.

Gáliková, M., Klepsatel, P., Münch, J., & Kühnlein, R. (2017). Spastic paraplegia-linked phospholipase PAPLA1 is necessary for development, reproduction, and energy metabolism in Drosophila. Scientific Reports, 7: 46516. doi:10.1038/srep46516.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002D-3191-9 Version Permalink: http://hdl.handle.net/21.11116/0000-0001-21CC-4
Genre: Journal Article

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Gáliková, M., Author
Klepsatel, P.1, Author              
Münch, J., Author
Kühnlein, R.1, Author              
Affiliations:
1Research Group of Molecular Physiology, MPI for Biophysical Chemistry, Max Planck Society, ou_578592              

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 Abstract: The human PAPLA1 phospholipase family is associated with hereditary spastic paraplegia (HSP), a neurodegenerative syndrome characterized by progressive spasticity and weakness of the lower limbs. Taking advantage of a new Drosophila PAPLA1 mutant, we describe here novel functions of this phospholipase family in fly development, reproduction, and energy metabolism. Loss of Drosophila PAPLA1 reduces egg hatchability, pre-adult viability, developmental speed, and impairs reproductive functions of both males and females. In addition, our work describes novel metabolic roles of PAPLA1, manifested as decreased food intake, lower energy expenditure, and reduced ATP levels of the mutants. Moreover, PAPLA1 has an important role in the glycogen metabolism, being required for expression of several regulators of carbohydrate metabolism and for glycogen storage. In contrast, global loss of PAPLA1 does not affect fat reserves in adult flies. Interestingly, several of the PAPLA1 phenotypes in fly are reminiscent of symptoms described in some HSP patients, suggesting evolutionary conserved functions of PAPLA1 family in the affected processes. Altogether, this work reveals novel physiological functions of PAPLA1, which are likely evolutionary conserved from flies to humans.

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Language(s): eng - English
 Dates: 2017-04-19
 Publication Status: Published online
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 Rev. Method: Peer
 Identifiers: DOI: 10.1038/srep46516
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Title: Scientific Reports
Source Genre: Journal
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Pages: 14 Volume / Issue: 7 Sequence Number: 46516 Start / End Page: - Identifier: -