FALCON systematically interrogates free fatty acid biology and identifies a novel mediator of lipotoxicity
- PMID: 37075753
- PMCID: PMC10257950
- DOI: 10.1016/j.cmet.2023.03.018
FALCON systematically interrogates free fatty acid biology and identifies a novel mediator of lipotoxicity
Abstract
Cellular exposure to free fatty acids (FFAs) is implicated in the pathogenesis of obesity-associated diseases. However, there are no scalable approaches to comprehensively assess the diverse FFAs circulating in human plasma. Furthermore, assessing how FFA-mediated processes interact with genetic risk for disease remains elusive. Here, we report the design and implementation of fatty acid library for comprehensive ontologies (FALCON), an unbiased, scalable, and multimodal interrogation of 61 structurally diverse FFAs. We identified a subset of lipotoxic monounsaturated fatty acids associated with decreased membrane fluidity. Furthermore, we prioritized genes that reflect the combined effects of harmful FFA exposure and genetic risk for type 2 diabetes (T2D). We found that c-MAF-inducing protein (CMIP) protects cells from FFA exposure by modulating Akt signaling. In sum, FALCON empowers the study of fundamental FFA biology and offers an integrative approach to identify much needed targets for diverse diseases associated with disordered FFA metabolism.
Keywords: CMIP; GWAS; erucic acid; kidney; lipidomics; microglia; obesity; pancreatic β cell; transcriptomics; type 2 diabetes.
Copyright © 2023 The Author(s). Published by Elsevier Inc. All rights reserved.
Conflict of interest statement
Declaration of interests N.W., J.C.F., and A.G. are co-inventors of a patent on the composition, method, and use for FFA screening, application no: 52199-550P01US. A.G. serves as a founding advisor to a new company launched by Atlas Ventures, an agreement reviewed and managed by Brigham and Women’s Hospital, Mass General Brigham, and the Broad Institute of MIT and Harvard in accordance with their conflict of interest policies.
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FALCON systematically interrogates free fatty acid biology and identifies a novel mediator of lipotoxicity.bioRxiv [Preprint]. 2023 Feb 20:2023.02.19.529127. doi: 10.1101/2023.02.19.529127. bioRxiv. 2023. Update in: Cell Metab. 2023 May 2;35(5):887-905.e11. doi: 10.1016/j.cmet.2023.03.018. PMID: 36865221 Free PMC article. Updated. Preprint.
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