文献检索文档翻译深度研究
Suppr Zotero 插件Zotero 插件
邀请有礼套餐&价格历史记录

新学期,新优惠

限时优惠:9月1日-9月22日

30天高级会员仅需29元

1天体验卡首发特惠仅需5.99元

了解详情
不再提醒
插件&应用
Suppr Zotero 插件Zotero 插件浏览器插件Mac 客户端Windows 客户端微信小程序
高级版
套餐订阅购买积分包
AI 工具
文献检索文档翻译深度研究
关于我们
关于 Suppr公司介绍联系我们用户协议隐私条款
关注我们

Suppr 超能文献

核心技术专利:CN118964589B侵权必究
粤ICP备2023148730 号-1Suppr @ 2025

棕榈油衍生的 δ-生育三烯酚在小神经胶质细胞中的细胞摄取和抗炎作用。

Cellular uptake and anti-inflammatory effects of palm oil-derived delta (δ)-tocotrienol in microglia.

机构信息

Neuroinflammation Group, Immunology Laboratory, Department of Pathology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400 Serdang, Malaysia.

Cell Signaling Laboratory, Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400 Serdang, Malaysia.

出版信息

Cell Immunol. 2020 Nov;357:104200. doi: 10.1016/j.cellimm.2020.104200. Epub 2020 Aug 28.


DOI:10.1016/j.cellimm.2020.104200
PMID:32979761
Abstract

Tocopherols long dominated studies on vitamin E, although interest has shifted to tocotrienols. It was previously shown that δ-tocotrienol derived from palm oil reduced nitric oxide released by BV2 microglia as early as 18 h after lipopolysaccharide stimulation. The current study measured δ-tocotrienol uptake by BV2 over a 24 h incubation period and its anti-inflammatory effects on primary microglia. Uptake of 17.5 μg/mL δ-tocotrienol by BV2 microglia began as early as 5 min and rose steeply to 21 ± 3% of the amount administered at 24 h. The amount of δ-tocotrienol retained in the lipopolysaccharide-stimulated microglia at 24 h was 14 ± 2%, with no substantial difference seen in unstimulated microglia. The same δ-tocotrienol regimen reduced nitric oxide levels by 82% at 24 h after lipopolysaccharide stimulation (p < 0.05). This was accompanied by decreased inducible nitric oxide synthase protein expression by 67 ± 5% compared to untreated controls (p < 0.05). In primary microglia, δ-tocotrienol downregulated IL-1β production, but TNF-α and IL-6 were not affected. δ-Tocotrienol also reduced prostaglandin E2 production by ~78%% and decreased transcription of COX-2 and 5-LOX, but not COX-1. This study showed the anti-inflammatory effects of δ-tocotrienol derived from palm oil and opens up interest for tocotrienol supplementation to reduce the effects of inflammatory conditions.

摘要

生育酚长期以来一直主导着维生素 E 的研究,尽管人们的兴趣已转移到生育三烯酚上。先前的研究表明,来源于棕榈油的 δ-生育三烯酚早在脂多糖刺激后 18 小时就能降低 BV2 小胶质细胞释放的一氧化氮。本研究在 24 小时孵育期间测量了 BV2 对 δ-生育三烯酚的摄取及其对原代小胶质细胞的抗炎作用。BV2 小胶质细胞摄取 17.5μg/ml δ-生育三烯酚早在 5 分钟就开始,并在 24 小时内急剧上升至给药量的 21±3%。在 24 小时时,在脂多糖刺激的小胶质细胞中保留的 δ-生育三烯酚量为 14±2%,在未刺激的小胶质细胞中未观察到明显差异。相同的 δ-生育三烯酚方案可使脂多糖刺激后 24 小时的一氧化氮水平降低 82%(p<0.05)。与未处理的对照组相比,这伴随着诱导型一氧化氮合酶蛋白表达降低 67±5%(p<0.05)。在原代小胶质细胞中,δ-生育三烯酚下调了白细胞介素-1β的产生,但肿瘤坏死因子-α和白细胞介素-6不受影响。δ-生育三烯酚还将前列腺素 E2 的产生降低了约 78%,并降低了 COX-2 和 5-LOX 的转录,但不降低 COX-1 的转录。这项研究表明了来源于棕榈油的 δ-生育三烯酚的抗炎作用,并为补充生育三烯酚以减轻炎症状态的影响开辟了兴趣。

相似文献

[1]
Cellular uptake and anti-inflammatory effects of palm oil-derived delta (δ)-tocotrienol in microglia.

Cell Immunol. 2020-11

[2]
Inhibitory effects of palm α-, γ- and δ-tocotrienol on lipopolysaccharide-induced nitric oxide production in BV2 microglia.

Cell Immunol. 2011-7-23

[3]
Inhibition of nitric oxide in LPS-stimulated macrophages of young and senescent mice by δ-tocotrienol and quercetin.

Lipids Health Dis. 2011-12-20

[4]
Safety and Neuroprotective Efficacy of Palm Oil and Tocotrienol-Rich Fraction from Palm Oil: A Systematic Review.

Nutrients. 2020-2-18

[5]
Antimalarial Drug Artemether Inhibits Neuroinflammation in BV2 Microglia Through Nrf2-Dependent Mechanisms.

Mol Neurobiol. 2015-11-25

[6]
Antiproliferative and apoptotic effects of tocopherols and tocotrienols on normal mouse mammary epithelial cells.

Lipids. 2000-2

[7]
δ-Tocotrienol, Isolated from Rice Bran, Exerts an Anti-Inflammatory Effect via MAPKs and PPARs Signaling Pathways in Lipopolysaccharide-Stimulated Macrophages.

Int J Mol Sci. 2018-10-4

[8]
Anti-neuroinflammatory effect of Sophoraflavanone G from Sophora alopecuroides in LPS-activated BV2 microglia by MAPK, JAK/STAT and Nrf2/HO-1 signaling pathways.

Phytomedicine. 2016-12-1

[9]
Anti-inflammatory effects of Polygala tenuifolia root through inhibition of NF-κB activation in lipopolysaccharide-induced BV2 microglial cells.

J Ethnopharmacol. 2011-8-10

[10]
Alpha-tocotrienol provides the most potent neuroprotection among vitamin E analogs on cultured striatal neurons.

Neuropharmacology. 2004-11

引用本文的文献

[1]
Scoping Review: The Role of Tocotrienol-Rich Fraction as a Potent Neuroprotective Agent.

Int J Mol Sci. 2025-8-8

[2]
Exploring the anti-inflammatory activities, mechanism of action and prospective drug delivery systems of tocotrienol to target neurodegenerative diseases.

F1000Res. 2023-3-27

[3]
Early-stage effect of HIBD on neuro-motor function and organic composition of neurovascular units in neonatal rats.

Front Neurosci. 2023-11-21

[4]
α-Tocopherol Protects Lipopolysaccharide-Activated BV2 Microglia.

Molecules. 2023-4-10

[5]
Gefitinib-loaded starch nanoparticles for battling lung cancer: Optimization by full factorial design and cytotoxicity evaluation.

Saudi Pharm J. 2023-1

[6]
Red Palm Oil Ameliorates Oxidative Challenge and Inflammatory Responses Associated with Lipopolysaccharide-Induced Hepatic Injury by Modulating NF-κβ and Nrf2/GCL/HO-1 Signaling Pathways in Rats.

Antioxidants (Basel). 2022-8-22

[7]
Tocotrienol in Pre-Eclampsia Prevention: A Mechanistic Analysis in Relation to the Pathophysiological Framework.

Cells. 2022-2-10

[8]
Role of Vitamin E and the Orexin System in Neuroprotection.

Brain Sci. 2021-8-20

文献AI研究员

20分钟写一篇综述,助力文献阅读效率提升50倍

立即体验

用中文搜PubMed

大模型驱动的PubMed中文搜索引擎

马上搜索

推荐工具

医学文档翻译智能文献检索