Cited by 80Fatty Acid Research and HealthRetinal Diseases and TreatmentsRetinal Development and Disorders

Elovanoids are novel cell-specific lipid mediators necessary for neuroprotective signaling for photoreceptor cell integrity

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Jun, Bokkyoo, Mukherjee, Pranab K., Asatryan, Aram, Kautzmann, Marie-Audrey, Heap, Jessica, Gordon, William C., Bhattacharjee, Surjyadipta, Yang, Rong +2 more·2017·Scientific Reports

Abstract

Docosahexaenoic acid (DHA, 22:6 n-3) is abundant in the retina and is enzymatically converted into pro-homeostatic docosanoids. The DHA- or eicosapentaenoic acid (EPA)-derived 26 carbon fatty acid is a substrate of elongase ELOVL4, which is expressed in photoreceptor cells and generates very long chain (≥C28) polyunsaturated fatty acids including n-3 (VLC-PUFAs,n-3). While ELOVL4 mutations are linked to vision loss and neuronal dysfunctions, the roles of VLC-PUFAs remain unknown. Here we report a novel class of lipid mediators biosynthesized in human retinal pigment epithelial (RPE) cells that are oxygenated derivatives of VLC-PUFAs,n-3; we termed these mediators elovanoids (ELV). ELVs have structures reminiscent of docosanoids but with different physicochemical properties and alternatively-regulated biosynthetic pathways. The structures, stereochemistry, and bioactivity of ELVs were determined using synthetic materials produced by stereo-controlled chemical synthesis. ELVs enhance expression of pro-survival proteins in cells undergoing uncompensated oxidative stress. Our findings unveil a novel autocrine/paracrine pro-homeostatic RPE cell signaling that aims to sustain photoreceptor cell integrity and reveal potential therapeutic targets for retinal degenerations.

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Authors
Jun, B., Mukherjee, P. K., Asatryan, A., Kautzmann, M.-A., Heap, J., Gordon, W. C., Bhattacharjee, S., Yang, R., Petasis, N. A., & Bazan, N. G.
Affiliations
  • Louisiana State University (US)
  • University of Southern California (US)
Corresponding author
Bazan, Nicolas G.
Venue
Scientific Reports
Published
2017-07-13
Volume
7
Issue
1
Pages
5279-5279
ISSN
2045-2322 (ISSN-L)
OpenAlex
W2729615630
Cited by
80
References
70
Citations by year
2026: 4 · 2025: 5 · 2024: 5 · 2023: 14 · 2022: 7 · 2021: 12 · 2020: 9 · 2019: 10 · 2018: 11 · 2017: 3
FWCI
7.50
Type
journal article
Language
en
Open access
Locations
  • Scientific Reports (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Research to Prevent Blindness
  • National Eye Institute (R01EY005121)
  • National Institute of General Medical Sciences (GM-103340, P30GM103340)
Topics
  • Health Sciences › Nursing › Nutrition and Dietetics › Fatty Acid Research and Health
  • Health Sciences › Medicine › Ophthalmology › Retinal Diseases and Treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Retinal Development and Disorders
Keywords
docosanoids, very long chain polyunsaturated fatty acids, ELOVL4, retinal pigment epithelium, neuroprotection, oxidative stress, autocrine and paracrine signaling, retinal degeneration, docosahexaenoic acid, eicosapentaenoic acid, lipid mediators
MeSH terms
Neuroprotection, Adult, Animals, Cells, Cultured, Eye Proteins, Fatty Acids, Unsaturated, Humans, Male, Membrane Proteins, Mice, Inbred C57BL, Photoreceptor Cells, Signal Transduction, Mice, Knockout, Oxidative Stress, Neuroprotective Agents, Receptors, Adiponectin, Retinal Pigment Epithelium, Young Adult

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