PMID- 20561933 OWN - NLM STAT- MEDLINE DCOM- 20100927 LR - 20211020 IS - 1872-7972 (Electronic) IS - 0304-3940 (Print) IS - 0304-3940 (Linking) VI - 479 IP - 3 DP - 2010 Aug 2 TI - Omega-3 and omega-6 fatty acids suppress ER- and oxidative stress in cultured neurons and neuronal progenitor cells from mice lacking PPT1. PG - 292-6 LID - 10.1016/j.neulet.2010.05.083 [doi] AB - Reactive oxygen species (ROS) damage brain lipids, carbohydrates, proteins, as well as DNA and may contribute to neurodegeneration. We previously reported that ER- and oxidative stress cause neuronal apoptosis in infantile neuronal ceroid lipofuscinosis (INCL), a lethal neurodegenerative storage disease, caused by palmitoyl-protein thioesterase-1 (PPT1) deficiency. Polyunsaturated fatty acids (PUFA) are essential components of cell membrane phospholipids in the brain and excessive ROS may cause oxidative damage of PUFA leading to neuronal death. Using cultured neurons and neuroprogenitor cells from mice lacking Ppt1, which mimic INCL, we demonstrate that Ppt1-deficient neurons and neuroprogenitor cells contain high levels of ROS, which may cause peroxidation of PUFA and render them incapable of providing protection against oxidative stress. We tested whether treatment of these cells with omega-3 or omega-6 PUFA protects the neurons and neuroprogenitor cells from oxidative stress and suppress apoptosis. We report here that both omega-3 and omega-6 fatty acids protect the Ppt1-deficient cells from ER- as well as oxidative stress and suppress apoptosis. Our results suggest that PUFA supplementation may have neuroprotective effects in INCL. CI - Published by Elsevier Ireland Ltd. FAU - Kim, Sung-Jo AU - Kim SJ AD - Section on Developmental Genetics, Program on Developmental Endocrinology and Genetics, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NIH, Bethesda, MD 20892-1830, United States. FAU - Zhang, Zhongjian AU - Zhang Z FAU - Saha, Arjun AU - Saha A FAU - Sarkar, Chinmoy AU - Sarkar C FAU - Zhao, Zhenwen AU - Zhao Z FAU - Xu, Yan AU - Xu Y FAU - Mukherjee, Anil B AU - Mukherjee AB LA - eng GR - Z01 HD000910-29/ImNIH/Intramural NIH HHS/United States GR - BB_/Biotechnology and Biological Sciences Research Council/United Kingdom PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20100604 PL - Ireland TA - Neurosci Lett JT - Neuroscience letters JID - 7600130 RN - 0 (Fatty Acids, Omega-3) RN - 0 (Fatty Acids, Omega-6) RN - 0 (Reactive Oxygen Species) RN - EC 3.1.2.- (Thiolester Hydrolases) RN - EC 3.1.2.22 (palmitoyl-protein thioesterase) SB - IM MH - Animals MH - Apoptosis/drug effects MH - Brain/cytology MH - Cells, Cultured MH - Endoplasmic Reticulum/*drug effects/physiology MH - Fatty Acids, Omega-3/*pharmacology MH - Fatty Acids, Omega-6/*pharmacology MH - Mice MH - Mice, Knockout MH - Neuronal Ceroid-Lipofuscinoses/genetics/metabolism MH - Neurons/cytology/*drug effects/metabolism MH - Oxidative Stress/*drug effects MH - Reactive Oxygen Species/metabolism MH - Stem Cells/cytology/*drug effects/metabolism MH - Thiolester Hydrolases/*genetics PMC - PMC2904481 MID - NIHMS217389 EDAT- 2010/06/22 06:00 MHDA- 2010/09/29 06:00 PMCR- 2011/08/01 CRDT- 2010/06/22 06:00 PHST- 2010/03/26 00:00 [received] PHST- 2010/05/12 00:00 [revised] PHST- 2010/05/26 00:00 [accepted] PHST- 2010/06/22 06:00 [entrez] PHST- 2010/06/22 06:00 [pubmed] PHST- 2010/09/29 06:00 [medline] PHST- 2011/08/01 00:00 [pmc-release] AID - S0304-3940(10)00712-3 [pii] AID - 10.1016/j.neulet.2010.05.083 [doi] PST - ppublish SO - Neurosci Lett. 2010 Aug 2;479(3):292-6. doi: 10.1016/j.neulet.2010.05.083. Epub 2010 Jun 4.