Lactobacillus rhamnosus blocks inflammatory signaling in vivo via reactive oxygen species generation.

Lactobacillus rhamnosus blocks inflammatory signaling in vivo via reactive oxygen species generation.
复制标题

DOI:
10.1016/j.freeradbiomed.2009.07.033
复制
发表时间:
2009-10-15
影响因子:
7.4
通讯作者:
Neish, Andrew S.
Neish, Andrew S.
中科院分区:
医学1区
文献类型:
--
作者:
Lin, Patricia W.;Myers, Loren E. S.;Ray, Laurie;Song, Shuh-Chyung;Nasr, Tala R.;Berardinelli, Andrew J.;Kundu, Kousik;Murthy, Niren;Hansen, Jason M.;Neish, Andrew S.

文献摘要

参考文献

被引文献

相似文献

未成熟肠道中不受控制的炎症反应可能在新生儿或儿童中出现的许多肠道炎症综合征的发病机制中发挥作用,例如坏死性小肠结肠炎(NEC)、特发性炎症性肠病(IBD)或感染性肠炎。与之前的报道一致,即小鼠肠道功能在生命的前 3 周内成熟,我们发现新生小鼠肠道中的炎症信号在出生后成熟期间增加,峰值反应出现在 2-3 周。益生菌可以通过诱导活性氧 (ROS) 的产生来阻断培养上皮细胞中的炎症反应,活性氧通过关键调节酶 Ubc12 的氧化失活来抑制 NF-κB 的激活。我们现在首次报道益生菌鼠李糖乳杆菌 GG (LGG) 可以在体外和体内诱导肠上皮细胞产生 ROS。饲喂 LGG 的未成熟小鼠的肠道表现出 GSH 氧化和 cullin-1 去甲基化增加,分别反映了局部 ROS 的生成及其导致的 Ubc12 失活。此外,预喂 LGG 可以防止 TNF-α 诱导的肠道 NF-κB 激活。这些研究表明,LGG 可以通过诱导局部 ROS 生成来减少未成熟肠道中的炎症信号传导,并且可能是益生菌预防早产儿 NEC 或减轻儿童 IBD 严重程度的一种机制。
Uncontrolled inflammatory responses in the immature gut may play a role in the pathogenesis of many intestinal inflammatory syndromes that present in newborns or children such as necrotizing enterocolitis (NEC), idiopathic inflammatory bowel diseases (IBD), or infectious enteritis. Consistent with previous reports that murine intestinal function matures over the first 3 weeks of life, we show that inflammatory signaling in neonatal mouse gut increases during postnatal maturation with peak responses occurring at 2-3 weeks. Probiotic bacteria can block inflammatory responses in cultured epithelia by inducing the generation of reactive oxygen species (ROS) which inhibit NF-κB activation through oxidative inactivation of the key regulatory enzyme Ubc12. We now report for the first time that the probiotic Lactobacillus rhamnosus GG (LGG) can induce ROS generation in intestinal epithelia in vitro and in vivo. Intestines from immature mice gavage fed LGG exhibited increased GSH oxidation and cullin-1 deneddylation reflecting local ROS generation and its resultant Ubc12 inactivation, respectively. Furthermore, prefeeding LGG prevented TNF-α induced intestinal NF-κB activation. These studies indicate that LGG can reduce inflammatory signaling in immature intestines by inducing local ROS generation and may be a mechanism by which probiotic bacteria can prevent NEC in premature infants or reduce severity of IBD in children.
DOI: 10.1016/s1201-9712(99)90024-3
发表时间: 1999-01-01
期刊: International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases
影响因子: --
作者:
Hoyos, A B
通讯作者: Hoyos, A B
DOI: 10.1073/pnas.0401710101
发表时间: 2004-05-11
影响因子: 11.1
作者:
Claud, EC;Lu, L;Cherayil, BJ
通讯作者: Cherayil, BJ
DOI: 10.1055/s-2003-43580
发表时间: 2003-10-01
影响因子: 1.8
作者:
Akisu, M;Baka, M;Kultursay, N
通讯作者: Kultursay, N
DOI: 10.1542/peds.2007-3423
发表时间: 2009-01
期刊: Pediatrics
影响因子: 8
作者:
Cotten CM;Taylor S;Stoll B;Goldberg RN;Hansen NI;Sánchez PJ;Ambalavanan N;Benjamin DK Jr;NICHD Neonatal Research Network
通讯作者: NICHD Neonatal Research Network
DOI: 10.4049/jimmunol.175.7.4194
发表时间: 2005-10-01
影响因子: 4.4
作者:
Collier-Hyams, LS;Sloane, V;Neish, AS
通讯作者: Neish, AS