Maresins: novel macrophage mediators with potent antiinflammatory and proresolving actions.

Maresins: novel macrophage mediators with potent antiinflammatory and proresolving actions.
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DOI:
10.1084/jem.20081880
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发表时间:
2009-01-16
影响因子:
15.3
通讯作者:
Spite, Matthew
Spite, Matthew
中科院分区:
医学1区
文献类型:
--
作者:
Serhan, Charles N.;Yang, Rong;Martinod, Kimberly;Kasuga, Kie;Pillai, Padmini S.;Porter, Timothy F.;Oh, Sungwhan F.;Spite, Matthew

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控制急性炎症及其消退的内源性细胞和分子机制受到广泛关注。使用自分解炎性渗出物和脂质组学,我们已经确定了一种新的途径,涉及巨噬细胞(MΦ)从必需脂肪酸二十二碳六烯酸(DHA)生物合成有效的β-环糊精和促分解介质。在小鼠腹膜炎消退期间,渗出物积累了17-羟基二十二碳六烯酸(17 S-D系列消退素(Rv)和保护素生物合成的已知标志物)和来自内源性DHA的14 S-羟基二十二碳-4Z,7Z,10 Z,12 E,16 Z,19 Z-六烯酸。向活化的MΦ中加入DHA或14 S-氢过氧二十二碳-4Z,7 Z,10 Z,12 E,16 Z,19 Z-六烯酸,将这些底物转化为新的含二羟基的产物,其具有有效的促分解和促分解活性,其效力与分解素E1,5S,12 R,18 R-三羟基二十二碳-6Z,8 E,10 E,14 Z,16 E-五烯酸和保护素D1,10 R,17 S-二羟基二十二碳-4Z相似,7Z,11 E,13 E,15 Z,19 Z-六烯酸。产物的稳定同位素掺入、中间体捕获和物理和生物学性质的表征证明了一种新的14-脂氧合酶途径,产生生物活性的7,14-二羟基二十二碳-4Z,8,10,12,16 Z,19 Z-六烯酸,在消除炎症中创造的MΦ介体(maresin),其增强了分辨率。这些发现表明maresins和这种新的代谢物组可能参与DHA和MΦ在组织稳态、炎症消退、伤口愈合和宿主防御中的一些有益作用。
The endogenous cellular and molecular mechanisms that control acute inflammation and its resolution are of wide interest. Using self-resolving inflammatory exudates and lipidomics, we have identified a new pathway involving biosynthesis of potent antiinflammatory and proresolving mediators from the essential fatty acid docosahexaenoic acid (DHA) by macrophages (MΦs). During the resolution of mouse peritonitis, exudates accumulated both 17-hydroxydocosahexaenoic acid, a known marker of 17S-D series resolvin (Rv) and protectin biosynthesis, and 14S-hydroxydocosa-4Z,7Z,10Z,12E,16Z,19Z-hexaenoic acid from endogenous DHA. Addition of either DHA or 14S-hydroperoxydocosa-4Z,7Z,10Z,12E,16Z,19Z-hexaenoic acid to activated MΦs converted these substrates to novel dihydroxy-containing products that possessed potent antiinflammatory and proresolving activity with a potency similar to resolvin E1, 5S,12R,18R-trihydroxyeicosa-6Z,8E,10E,14Z,16E-pentaenoic acid, and protectin D1, 10R,17S-dihydroxydocosa-4Z,7Z,11E,13E,15Z,19Z-hexaenoic acid. Stable isotope incorporation, intermediate trapping, and characterization of physical and biological properties of the products demonstrated a novel 14-lipoxygenase pathway, generating bioactive 7,14-dihydroxydocosa-4Z,8,10,12,16Z,19Z-hexaenoic acid, coined MΦ mediator in resolving inflammation (maresin), which enhances resolution. These findings suggest that maresins and this new metabolome may be involved in some of the beneficial actions of DHA and MΦs in tissue homeostasis, inflammation resolution, wound healing, and host defense.
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