Lactobacillus rhamnosus blocks inflammatory signaling in vivo via reactive oxygen species generation.
Lactobacillus rhamnosus blocks inflammatory signaling in vivo via reactive oxygen species generation.
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DOI:
10.1016/j.freeradbiomed.2009.07.033
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发表时间:
2009-10-15
影响因子:
7.4
通讯作者:
Neish, Andrew S.
中科院分区:
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.
关键词:
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.
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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
影响因子:
1.8
作者:
Akisu, M;Baka, M;Kultursay, N
通讯作者:
Kultursay, N
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
影响因子:
4.4
作者:
Collier-Hyams, LS;Sloane, V;Neish, AS
通讯作者:
Neish, AS