Abstract：
:Lactic acid bacteria (LAB) show anti-inflammatory effects, and their genomic DNA was identified as one of the anti-inflammatory components. Despite the differences in anti-inflammatory effects between live LAB dependent not only on genus but also species, this effect has not been compared at the genomic DNA level. We compared the anti-inflammatory effects of the genomic DNA from five Lactobacillus species-Lactobacillus acidophilus, Lactobacillus casei, Lactobacillus gasseri, Lactobacillus plantarum, and Lactobacillus reuteri-using Caco-2 cells. To evaluate anti-inflammatory effects, decreases in H(2)O(2)-induced IL-8 secretion and inhibition of H(2)O(2)-induced NF-κB/IκB-α system activation were examined. All LAB genomic DNAs dose-dependently decreased H(2)O(2)-induced IL-8 secretion and inhibited H(2)O(2)-induced NF-κB/IκB-α system activation. Comparison of these effects between Lactobacillus species showed that the anti-inflammatory effects of L. acidophilus genomic DNA are lower than those of the other species. Furthermore, suppression of Toll-like receptor 9 (TLR9), a specific receptor of bacterial DNA, expression by RNAi abolished the decrease of H(2)O(2)-induced IL-8 secretion and inhibition of H(2)O(2)-induced NF-κB/IκB-α system activation by LAB genomic DNA. Our results demonstrated that the anti-inflammatory effects of genomic DNA differ between Lactobacillus species and TLR9 is one of the major pathways responsible for the anti-inflammatory effect of LAB genomic DNA.
journal_name
Microbes Infectjournal_title
Microbes and infectionauthors
Hiramatsu Y,Satho T,Irie K,Shiimura S,Okuno T,Sharmin T,Uyeda S,Fukumitsu Y,Nakashima Y,Miake F,Kashige Ndoi
10.1016/j.micinf.2012.11.003subject
Has Abstractpub_date
2013-02-01 00:00:00pages
96-104issue
2eissn
1286-4579issn
1769-714Xpii
S1286-4579(12)00274-2journal_volume
15pub_type
杂志文章abstract：:Experimental cutaneous leishmaniasis is a useful model in studying the mechanism regulating immune responses between T helper type 1 (Th1) and Th2. Mice susceptible to Leishmania major infection such as BALB/c (H-2(d)) are associated with the induction of the disease-promoting Th2 response, while the resistant mice su...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/s1286-4579(00)01298-3
更新日期：2000-10-01 00:00:00
abstract：:We previously reported prolonged HIV-1 transcriptional gene silencing by an RNA duplex targeting a sequence located within the NF-kappaB binding motif of the HIV-1 promoter in a susceptible HeLa cell line. Here we report extremely prolonged suppression of productive HIV-1 infection in a T-cell line (Molt-4) by a retro...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2009.02.003
更新日期：2009-04-01 00:00:00
abstract：:Reduction of transmission is important for effective malaria control. Standard microscopic detection grossly underestimates the human transmission reservoir. Malaria transmission intensity is defined by local and focal conditions. Transmission-blocking vaccines may be effective by directly targeting identified hot spo...
journal_title：Microbes and infection
pub_type： 杂志文章,评审
doi：10.1016/j.micinf.2007.02.011
更新日期：2007-05-01 00:00:00
abstract：:This review summarizes recent work from our laboratory demonstrating the activation of B lymphocytes, macrophages and dendritic cells by DNA from three different protozoan parasites of cattle and humans that is qualitatively similar to the now well-described effects of CpG-containing bacterial DNA. This novel mechanis...
journal_title：Microbes and infection
pub_type： 杂志文章,评审
doi：10.1016/s1286-4579(02)01623-4
更新日期：2002-07-01 00:00:00
abstract：:CCR5-tropic (R5) immunodeficiency virus type 1 (HIV-1) strains are highly transmissible during the early stage of infection in humans, whereas CXCR4-tropic (X4) strains are less transmissible. This study aimed to explore the basis for early phase R5 and X4 HIV-1 infection in vivo by using humanized mice dually challen...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2015.02.002
更新日期：2015-05-01 00:00:00
abstract：:Toll-like receptors (TLRs) play an important role in the innate recognition of pathogens by dendritic cells (DCs) and in the induction of immune responses. However, relatively little is known about their functions in innate/acquired responses to complex eukaryotic microorganisms, including helminth parasites. That Sch...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2007.09.013
更新日期：2007-11-01 00:00:00
abstract：:Interleukin (IL)-12/IL-23 signal transduction-deficient individuals with genetic defects in IL12RB1 or IL12B often suffer from unusual mycobacterial and Salmonella infections. Here we discuss recent questions that have arisen from clinical observations that cast doubt on the necessity of IL-12/IL-23 signaling in contr...
journal_title：Microbes and infection
pub_type： 杂志文章,评审
doi：10.1016/j.micinf.2005.10.032
更新日期：2006-04-01 00:00:00
abstract：:Major advances have recently been achieved in the area of microbial recognition by the innate immune system. In this Forum, we discuss important issues related to innate recognition of bacteria and protozoan parasites. In particular, we highlight the structural characterization of pathogen-associated molecular pattern...
journal_title：Microbes and infection
pub_type： 杂志文章,评审
doi：10.1016/s1286-4579(02)01625-8
更新日期：2002-07-01 00:00:00
abstract：:Zika virus (ZIKV) greatly impacted the international scientific and public health communities in the last two years due to its association with microcephaly and other neonatal alterations. This review will discuss lessons learned from viral pathogenesis, epidemiology and clinical findings observed during the ZIKV outb...
journal_title：Microbes and infection
pub_type： 杂志文章,评审
doi：10.1016/j.micinf.2018.02.008
更新日期：2018-12-01 00:00:00
abstract：:Episomal expression of the major surface glycoprotein (gp63) sense and antisense mRNAs in Leishmania amazonensis was found previously to modulate the expression of this molecule as well as its infection of macrophages in vitro. Here, we evaluated the in vivo infectivity of these transfectants in BALB/c mice. Antisense...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2006.01.006
更新日期：2006-05-01 00:00:00
abstract：:This review elaborates on recent insights gained on the dynamic aspects of interactions between pathogen and the host intracellular machinery in tuberculosis infection. In addition we will also discuss the utility of adopting a systems biology approach, both for a better understanding of TB biology, and for the develo...
journal_title：Microbes and infection
pub_type： 杂志文章,评审
doi：10.1016/j.micinf.2010.10.009
更新日期：2011-02-01 00:00:00
abstract：:Borna disease virus (BDV) is a noncytolytic, neurotropic RNA virus that causes neurobehavioral disorders in a wide variety of warm-blooded animals. Recent evidence has revealed that BDV uses a unique strategy in its transcription and replication and directly affects cellular functions of infected central nervous syste...
journal_title：Microbes and infection
pub_type： 杂志文章,评审
doi：10.1016/s1286-4579(02)01564-2
更新日期：2002-04-01 00:00:00
abstract：:The early interferon-gamma (IFN-gamma) response after Salmonella infection was compared in resistant and susceptible congenic mice strains differing by the allele of Nramp1. IFN-gamma gene expression in vivo was studied by quantitative reverse transcription-PCR performed from the spleen of mice challenged by Salmonell...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/s1286-4579(01)01419-8
更新日期：2001-07-01 00:00:00
abstract：:Two candidate DNA vaccines based on the proteins CFP10 and CFP21 encoded by regions of difference (RDs) of Mycobacterium tuberculosis were evaluated individually and in multivalent combination with the immunodominant protein Ag85B for induction of protective immune responses against experimental tuberculosis. Experime...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2006.04.025
更新日期：2006-08-01 00:00:00
abstract：:Following infection with Toxoplasma gondii, certain strains of mice, such as BALB/c, are genetically resistant to development of toxoplasmic encephalitis (TE) and establish a latent chronic infection as do humans. Thus, these animals appear to be a suitable model to analyze the mechanism of resistance to TE. Since the...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/s1286-4579(00)00318-x
更新日期：2000-04-01 00:00:00
abstract：:Myxoma virus (MYXV) is a poxvirus with a strict rabbit-specific host-tropism for pathogenesis. The immunoregulatory factors encoded by MYXV can suppress some functions of immune effectors from other species. We review their mechanisms of action, implications in therapeutics and the potential to improve MYXV as an onco...
journal_title：Microbes and infection
pub_type： 杂志文章,评审
doi：10.1016/j.micinf.2010.08.012
更新日期：2010-12-01 00:00:00
abstract：:The physiopathology of Chagas' disease has been largely defined in murine infections with virulent strains which partially represent parasite diversity. This report reviews our studies with Sylvio X10/4 parasites, a Trypanosoma cruzi clone that induces no acute phase but in C3H/He mice leads to chronic myocarditis res...
journal_title：Microbes and infection
pub_type： 杂志文章,评审
doi：10.1016/j.micinf.2009.07.011
更新日期：2009-11-01 00:00:00
abstract：:Measles and pertussis are ubiquitous vaccine-preventable diseases, which remain an important public health problem in developing countries. Hence, developing a deep understanding of their transmission dynamics remains imperative. To achieve this, we compared the impact of vaccination at both individual and population ...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2004.12.018
更新日期：2005-04-01 00:00:00
abstract：:Staphylococcus aureus is a major cause of hospital-acquired infections. The ability to survive on abiotic surfaces is an important characteristic that facilitates transmission between human hosts. We found that S. aureus survivors of dry surface incubation are resistant to subsequent dry stress exposure. Survivors als...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2015.02.004
更新日期：2015-06-01 00:00:00
abstract：:This review summarizes and discusses virulence mechanisms whereby Porphyromonas gingivalis can persist in the oral cavity. It is proposed that the virulence of P. gingivalis is dependent, at least in part, upon its ability to establish a complex host-pathogen molecular crosstalk which subverts innate immunity. The sop...
journal_title：Microbes and infection
pub_type： 杂志文章,评审
doi：10.1016/j.micinf.2009.03.009
更新日期：2009-05-01 00:00:00
abstract：:The manipulation hypothesis states a parasite may alter host behaviour for its own benefit, often by enhancing its transmission rate through the food chain. This paper reviews studies on the potential impact of one parasite, Toxoplasma gondii, on host behaviour, both on rodents, where altered responses may be proposed...
journal_title：Microbes and infection
pub_type： 杂志文章,评审
doi：10.1016/s1286-4579(01)01459-9
更新日期：2001-10-01 00:00:00
abstract：:This short review will highlight three areas of current research on the role of complement in bacterial infection. These are i) the use of mice with targeted disruption of complement genes to study infectious disease models; ii) studies on the interactions between bacterial virulence factors and complement regulatory ...
journal_title：Microbes and infection
pub_type： 杂志文章,评审
doi：10.1016/s1286-4579(99)80063-x
更新日期：1999-07-01 00:00:00
abstract：:Streptococcus pneumoniae is a major pathogen causing potentially life-threatening community-acquired diseases in both the developed and developing world. Since 1967, there has been a dramatic increase in the incidence of penicillin-resistant and multiply antibiotic-resistant pneumococci worldwide. Prevention of access...
journal_title：Microbes and infection
pub_type： 杂志文章,评审
doi：10.1016/s1286-4579(00)01345-9
更新日期：2000-12-01 00:00:00
abstract：:Helicobacter pylori colonizes the gastric mucosa. H. pylori infection is the main cause of peptic ulcer and gastric malignancy. This review gives an overview on the epidemiology of H. pylori infection and H. pylori-associated diseases in the developed world, mainly Europe, and it discusses very recent developments wit...
journal_title：Microbes and infection
pub_type： 杂志文章,评审
doi：10.1016/s1286-4579(03)00111-4
更新日期：2003-07-01 00:00:00
abstract：:Our previous study has demonstrated that IL-10 may modulate both indoleamine 2,3-dioxygenase (IDO) and CD163 expression in lepromatous leprosy (LL) cells, favoring Mycobacterium leprae persistence through induction of regulatory pathways and iron storage. Here, we observed that in LL lesion cells there is an increase ...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2017.06.006
更新日期：2017-11-01 00:00:00
abstract：:The differential recognition of fungal cell wall polysaccharides that program innate and adaptive immunity to the human opportunistic fungal pathogen Aspergillus fumigatus has been a focus of considerable interest. In a mouse model of fungal conidia aspiration, decreased relative levels of cell wall core carbohydrates...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2017.05.001
更新日期：2017-01-01 00:00:00
abstract：:The objective of this study was to determine if inflammatory tolerance and enhancement of innate immune function could be induced by the Gram-positive cell wall component peptidoglycan (PGN). Male mice (C57BL6/J or C3H/HeJ, 8-12 weeks of age) were given intraperitoneal injections of 1mg PGN on 2 consecutive days. The ...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2008.07.021
更新日期：2008-10-01 00:00:00
abstract：:Campylobacter jejuni is one of the most common causes of bacterial gastroenteritis and chronic sequelae, such as reactive arthritis and Guillain-Barré syndrome (GBS), are known to follow uncomplicated infections. While little is known about reactive arthritis following Campylobacter infection, our knowledge on the pat...
journal_title：Microbes and infection
pub_type： 杂志文章,评审
doi：10.1016/s1286-4579(02)01553-8
更新日期：2002-04-01 00:00:00
abstract：:We previously showed that human corneal epithelial cells (HCECs) express Toll-like receptors (TLRs), which recognize gram-positive bacteria and respond to Staphylococcus aureus infection by the expression and secretion of proinflammatory cytokines and beta-defensin-2 (hBD2). In this study, we further elucidated the un...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2005.07.006
更新日期：2006-02-01 00:00:00
abstract：:To identify immunodominant antigens and MHC-restricted antibody responses, seven different strains of mice were intravaginally infected with Chlamydia muridarum and compared for antibody responses to 257 C. muridarum proteins. The 7 strains of mice recognized a total of 109 proteins as antigens, of which, 5 antigens (...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2012.02.005
更新日期：2012-07-01 00:00:00
