Abstract:
:Liver fatty acid-binding protein (FABP1, L-FABP) has high affinity for and enhances uptake of arachidonic acid (ARA, C20:4, n-6) which, when esterified to phospholipids, is the requisite precursor for synthesis of endocannabinoids (EC) such as arachidonoylethanolamide (AEA) and 2-arachidonoylglycerol (2-AG). The brain derives most of its ARA from plasma, taking up ARA and transporting it intracellularly via cytosolic fatty acid-binding proteins (FABPs 3,5, and 7) localized within the brain. In contrast, the much more prevalent cytosolic FABP1 is not detectable in the brain but is instead highly expressed in the liver. Therefore, the possibility that FABP1 outside the central nervous system may regulate brain AEA and 2-AG was examined in wild-type (WT) and FABP1 null (LKO) male mice. LKO increased brain levels of AA-containing EC (AEA, 2-AG), correlating with increased free and total ARA in brain and serum. LKO also increased brain levels of non-ARA that contain potentiating endocannabinoids (EC*) such as oleoyl ethanolamide (OEA), PEA, 2-OG, and 2-PG. Concomitantly, LKO decreased serum total ARA-containing EC, but not non-ARA endocannabinoids. LKO did not elicit these changes in the brain EC and EC* as a result of compensatory up-regulation of brain protein levels of enzymes in EC synthesis (NAPEPLD, DAGLα) or cytosolic EC chaperone proteins (FABPs 3, 5, 7, SCP-2, HSP70), or cannabinoid receptors (CB1, TRVP1). These data show for the first time that the non-CNS fatty acid-binding protein FABP1 markedly affected brain levels of both ARA-containing endocannabinoids (AEA, 2-AG) as well as their non-ARA potentiating endocannabinoids. Fatty acid-binding protein-1 (FABP-1) is not detectable in brain but instead is highly expressed in liver. The possibility that FABP1 outside the central nervous system may regulate brain endocannabinoids arachidonoylethanolamide (AEA) and 2-arachidonoylglycerol (2-AG) was examined in wild-type (WT) and FABP-1 null (LKO) male mice. LKO increased brain levels of arachidonic acid-containing endocannabinoids (AEA, 2-AG), correlating with increased free and total arachidonic acid in brain and serum. Read the Editorial Highlight for this article on page 371.
journal_name
J Neurochemjournal_title
Journal of neurochemistryauthors
Martin GG,Chung S,Landrock D,Landrock KK,Huang H,Dangott LJ,Peng X,Kaczocha M,Seeger DR,Murphy EJ,Golovko MY,Kier AB,Schroeder Fdoi
10.1111/jnc.13664subject
Has Abstractpub_date
2016-08-01 00:00:00pages
407-22issue
3eissn
0022-3042issn
1471-4159journal_volume
138pub_type
杂志文章abstract::Highly purified human serum cholinesterase (EC 3.1.1.8, also known as pseudocholinesterase and butyrylcholinesterase) had peptidase activity toward substance P. Digestion of substance P was monitored by high performance liquid chromatography, which separated three product peptides. The cleavages occurred sequentially....
journal_title:Journal of neurochemistry
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journal_title:Journal of neurochemistry
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abstract::Epilepsy is a serious neurological condition exhibiting complex pathology and deserving of more serious attention. More than 30% of people with epilepsy are not responsive to more than 20 anti-epileptic drugs currently available, reflecting an unmet clinical need for novel therapeutic strategies. Not much is known abo...
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pub_type: 杂志文章
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journal_title:Journal of neurochemistry
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journal_title:Journal of neurochemistry
pub_type: 杂志文章
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journal_title:Journal of neurochemistry
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journal_title:Journal of neurochemistry
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journal_title:Journal of neurochemistry
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pub_type: 杂志文章
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更新日期:2007-08-01 00:00:00
abstract::The Review "The malleable brain: plasticity of neural circuits and behavior - A review from students to students" has been written by a group of students following the International Society for Neurochemistry and Journal of Neurochemistry Flagship School. Comprehensively written by students for students, it provides b...
journal_title:Journal of neurochemistry
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journal_title:Journal of neurochemistry
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doi:10.1046/j.1471-4159.2001.00064.x
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abstract::Tumor progression locus 2 (Tpl2)/cancer Osaka thyroid kinase is a newer member of MAP3K family that is now known for its essential role in tumor necrosis factor-aplha (TNFα) expression in macrophages, but its pro-inflammatory signaling, if any, in glia is unknown. When cultures of murine microglia and astrocytes were ...
journal_title:Journal of neurochemistry
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更新日期:2014-03-01 00:00:00
abstract::We have reported that the nuclear isoforms of Ca2+/calmodulin-dependent protein kinase II (CaM KII) are involved in the expression of the exon IV-containing brain-derived neurotrophic factor (BDNF) mRNA. We document here the cis-elements and transcription factors responsive to CaM KII in the activation of the promoter...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
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abstract::In vitro, the transport of [14C]nicotine into the isolated choroid plexus, the anatomical locus of the blood--CSF barrier, was studied. The isolated rabbit choroid plexus accumulated [14C]nicotine by two processes: an active saturable transport process and a nonsaturable process. The [14C]nicotine accumulation process...
journal_title:Journal of neurochemistry
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journal_title:Journal of neurochemistry
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abstract::Rats were submitted to a series of 10 daily electroconvulsive shocks (ECS). A first group of animals was killed 1 day after the last seizure and a second group 30 days later. Tyrosine hydroxylase (TH) activity was measured using an in vitro assay in the nucleus caudatus, anterior cortex, amygdala, substantia nigra, ve...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
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abstract::Polyamine synthesis is induced by various extracellular signals, and it is widely held that this biochemical response participates in cell growth and differentiation. Certain of the triggers for synthesis in brain tissues also increase the breakdown of high-molecular-weight structural proteins, apparently by activatin...
journal_title:Journal of neurochemistry
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