Cited by 753Fatty Acid Research and HealthRetinal Diseases and TreatmentsAntioxidant Activity and Oxidative Stress

Neuroprotectin D1: a docosahexaenoic acid-derived docosatriene protects human retinal pigment epithelial cells from oxidative stress

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Mukherjee, Pranab K., Marcheselli, Victor L., Serhan, Charles N., Bazan, Nicolas G.·2004·Proceedings of the National Academy of Sciences

Abstract

Docosahexaenoic acid (DHA) is a lipid peroxidation target in oxidative injury to retinal pigment epithelium (RPE) and retina. Photoreceptor and synaptic membranes share the highest content of DHA of all cell membranes. This fatty acid is required for RPE functional integrity; however, it is not known whether specific mediators generated from DHA contribute to its biological significance. We used human ARPE-19 cells and demonstrated the synthesis of 10,17S-docosatriene [neuroprotectin D1 (NPD1)]. This synthesis was enhanced by the calcium ionophore A-23187, by IL-1beta, or by supplying DHA. Under these conditions, there is a time-dependent release of endogenous free DHA followed by NPD1 formation, suggesting that phospholipase A(2) releases the mediator's precursor. Added NPD1 potently counteracted H(2)O(2)/tumor necrosis factor alpha oxidative-stress-triggered apoptotic RPE DNA damage. NPD1 also up-regulated the antiapoptotic proteins Bcl-2 and Bcl-x(L) and decreased proapoptotic Bax and Bad expression. Moreover, NPD1 (50 nM) inhibited oxidative-stress-induced caspase-3 activation. NPD1 also inhibited IL-1beta-stimulated expression of cyclooxygenase 2 promoter transfected into ARPE-19 cells. Overall, NPD1 protected RPE cells from oxidative-stress-induced apoptosis, and we predict that it will similarly protect neurons. This lipid mediator therefore may indirectly contribute to photoreceptor cell survival as well. Because both RPE and photoreceptor cells die in retinal degenerations, our findings contribute to the understanding of retinal cell survival signaling and potentially to the development of new therapeutic strategies.

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Cited by

Sorted by citations

Authors
Mukherjee, P. K., Marcheselli, V. L., Serhan, C. N., & Bazan, N. G.
Affiliations
Louisiana State University (US)
Corresponding author
Bazan, Nicolas G.
Venue
Proceedings of the National Academy of Sciences
Published
2004-05-19
Volume
101
Issue
22
Pages
8491-8496
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W1739691545
Cited by
753
References
50
Citations by year
2026: 22 · 2025: 14 · 2024: 13 · 2023: 14 · 2022: 24 · 2021: 20 · 2020: 34 · 2019: 23 · 2018: 25 · 2017: 34 · 2016: 24 · 2015: 35 · 2014: 42 · 2013: 52 · 2012: 42
FWCI
44.10
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Huntsman Cancer Institute
  • University of Leicester
  • National Institutes of Health (4r37gm038765-19, GM 38765)
  • National Eye Institute (EY05121, R01EY005121)
  • National Institute of General Medical Sciences (GM 38765, R01GM038765, R37-GM038765)
  • National Center for Research Resources (P20RR-16816, P20RR016816)
Topics
  • Health Sciences › Nursing › Nutrition and Dietetics › Fatty Acid Research and Health
  • Health Sciences › Medicine › Ophthalmology › Retinal Diseases and Treatments
  • Health Sciences › Medicine › Biochemistry › Antioxidant Activity and Oxidative Stress
Keywords
neuroprotectin D1, docosahexaenoic acid, retinal pigment epithelium, oxidative stress, apoptosis, phospholipase A2, cyclooxygenase-2, Bcl-2 family proteins, caspase-3, IL-1β, photoreceptor survival, retinal degeneration, lipid mediators
MeSH terms
Cell Line, Docosahexaenoic Acids, Epithelial Cells, Humans, Interleukin-1, Isoenzymes, Membrane Proteins, Pigment Epithelium of Eye, Prostaglandin-Endoperoxide Synthases, Lipid Peroxidation, Molecular Structure, Apoptosis, Oxidative Stress, Proto-Oncogene Proteins c-bcl-2, Caspases, Cyclooxygenase 2, Caspase 3, DNA Fragmentation

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