The Antimalarial Natural Product Salinipostin A Identifies Essential α/β Serine Hydrolases Involved in Lipid Metabolism in P. falciparum Parasites.
Antimalarials
/ chemistry
Biological Products
/ chemical synthesis
Bridged Bicyclo Compounds, Heterocyclic
/ chemistry
Click Chemistry
Drug Resistance
/ drug effects
Humans
Hydrolases
/ antagonists & inhibitors
Lipid Metabolism
/ drug effects
Malaria, Falciparum
/ drug therapy
Monoacylglycerol Lipases
/ antagonists & inhibitors
Orlistat
/ chemistry
Plasmodium falciparum
/ drug effects
Protozoan Proteins
/ antagonists & inhibitors
Plasmodium falciparum
Salinipostin A
activity-based probes
chemical proteomics
lipid metabolism
malaria
natural products
serine hydrolases
Journal
Cell chemical biology
ISSN: 2451-9448
Titre abrégé: Cell Chem Biol
Pays: United States
ID NLM: 101676030
Informations de publication
Date de publication:
20 02 2020
20 02 2020
Historique:
received:
28
10
2019
revised:
11
12
2019
accepted:
03
01
2020
pubmed:
25
1
2020
medline:
14
5
2021
entrez:
25
1
2020
Statut:
ppublish
Résumé
Salinipostin A (Sal A) is a potent antiplasmodial marine natural product with an undefined mechanism of action. Using a Sal A-derived activity-based probe, we identify its targets in the Plasmodium falciparum parasite. All of the identified proteins contain α/β serine hydrolase domains and several are essential for parasite growth. One of the essential targets displays a high degree of homology to human monoacylglycerol lipase (MAGL) and is able to process lipid esters including a MAGL acylglyceride substrate. This Sal A target is inhibited by the anti-obesity drug Orlistat, which disrupts lipid metabolism. Resistance selections yielded parasites that showed only minor reductions in sensitivity and that acquired mutations in a PRELI domain-containing protein linked to drug resistance in Toxoplasma gondii. This inability to evolve efficient resistance mechanisms combined with the non-essentiality of human homologs makes the serine hydrolases identified here promising antimalarial targets.
Identifiants
pubmed: 31978322
pii: S2451-9456(20)30001-5
doi: 10.1016/j.chembiol.2020.01.001
pmc: PMC8027986
mid: NIHMS1678834
pii:
doi:
Substances chimiques
Antimalarials
0
Biological Products
0
Bridged Bicyclo Compounds, Heterocyclic
0
Protozoan Proteins
0
salinipostin A
0
Orlistat
95M8R751W8
Hydrolases
EC 3.-
Monoacylglycerol Lipases
EC 3.1.1.23
Types de publication
Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
143-157.e5Subventions
Organisme : NIDDK NIH HHS
ID : R00 DK105203
Pays : United States
Organisme : NIAID NIH HHS
ID : T32 AI106711
Pays : United States
Organisme : NIAID NIH HHS
ID : R33 AI127581
Pays : United States
Organisme : NIGMS NIH HHS
ID : R01 GM117004
Pays : United States
Organisme : NIGMS NIH HHS
ID : R01 GM118431
Pays : United States
Organisme : NIDDK NIH HHS
ID : K99 DK105203
Pays : United States
Organisme : NIDDK NIH HHS
ID : P30 DK116074
Pays : United States
Commentaires et corrections
Type : CommentIn
Informations de copyright
Copyright © 2020 Elsevier Ltd. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of Interests The authors declare no competing interests.
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