Abstract:
:Anti-NMDA receptor (NMDAR) autoantibodies have been postulated to play a role in the pathogenesis of NMDAR hypofunction, which contributes to the etiology of psychotic symptoms. Toxoplasma gondii is a pathogen implicated in psychiatric disorders and associated with elevation of NMDAR autoantibodies. However, it remains unclear whether parasite infection is the cause of NMDAR autoantibodies. By using mouse models, we found that NMDAR autoantibody generation had a strong temporal association with tissue cyst formation, as determined by MAG1 antibody seroreactivity (r = 0.96; P < 0.0001), which is a serologic marker for the cyst burden. The presence of MAG1 antibody response, but not T. gondii IgG response, was required for NMDAR autoantibody production. The pathogenic relevance of NMDAR autoantibodies to behavioral abnormalities (blunted response to amphetamine-triggered activity and decreased locomotor activity and exploration) and reduced expression of synaptic proteins (the GLUN2B subtype of NMDAR and PSD-95) has been demonstrated in infected mice. Our study suggests that NMDAR autoantibodies are specifically induced by persistent T. gondii infection and are most likely triggered by tissue cysts. NMDAR autoantibody seroreactivity may be a novel pathological hallmark of chronic toxoplasmosis, which raises questions about NMDAR hypofunction and neurodegeneration in the infected brain.
journal_name
Infect Immunjournal_title
Infection and immunityauthors
Li Y,Viscidi RP,Kannan G,McFarland R,Pletnikov MV,Severance EG,Yolken RH,Xiao Jdoi
10.1128/IAI.00398-18subject
Has Abstractpub_date
2018-09-21 00:00:00issue
10eissn
0019-9567issn
1098-5522pii
IAI.00398-18journal_volume
86pub_type
杂志文章abstract::Escherichia coli strains expressing the K1 capsule are a major cause of sepsis and meningitis in human neonates. The development of these diseases is dependent on the expression of a range of virulence factors, many of which remain uncharacterized. Here, we show that all but 1 of 34 E. coli K1 neonatal isolates carrie...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.00716-15
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journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.02067-05
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abstract::Cytokine mRNA expression in biopsies of Mycobacterium ulcerans-infected human tissue was investigated using real-time PCR, and the findings were correlated with the clinical stages of disease and histopathologies. A broad range of cytokine mRNAs were detected in 16 early nodules and 28 late-stage ulcers, including tho...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.74.5.2917-2924.2006
更新日期:2006-05-01 00:00:00
abstract::The intestinal mucosa forms the first line of defense against infections mediated by enteric pathogens such as salmonellae. Here we exploited intestinal "organoids" (iHOs) generated from human induced pluripotent stem cells (hIPSCs) to explore the interaction of Salmonella enterica serovar Typhimurium with iHOs. Imagi...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.00161-15
更新日期:2015-07-01 00:00:00
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journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.63.12.4812-4817.1995
更新日期:1995-12-01 00:00:00
abstract::Differences in susceptibility to persistent cryptosporidial infection between two strains of adult athymic nude mice prompted us to investigate the immune mechanism(s) that may control resistance to infection in these T-cell-deficient mice. We studied fecal oocyst shedding, serum and fecal parasite-specific antibody r...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.67.8.3947-3951.1999
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abstract::A T antigen preparation free of trypsin was obtained by application of CNBr-Sepharose linked to pure trypsin. Purification on an ion exchange chromatography column results in an electrophoretically homogeneous preparation of T protein. ...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.13.3.993-994.1976
更新日期:1976-03-01 00:00:00
abstract::Campylobacter jejuni is a major cause of human inflammatory enteritis. During the course of human disease numerous proinflammatory cytokines are produced. Little is known, however, about the cytokine responses produced during the interaction of this bacterium with the avian host. Campylobacter has been considered a co...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.73.4.2094-2100.2005
更新日期:2005-04-01 00:00:00
abstract::Previous studies have reported that human vascular endothelial cells lack the membrane-bound lipopolysaccharide (LPS) receptor, CD14 (mCD14). By optimizing assay conditions, including the selection of anti-CD14 monoclonal antibody, we now demonstrate that human umbilical vein endothelial cells (HUVEC) express CD14 on ...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.69.1.479-485.2001
更新日期:2001-01-01 00:00:00
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journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.37.2.407-412.1982
更新日期:1982-08-01 00:00:00
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journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.00770-13
更新日期:2013-11-01 00:00:00
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journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/iai.70.11.6215-6222.2002
更新日期:2002-11-01 00:00:00
abstract::ExoU is a potent effector protein that causes rapid host cell death upon injection by the type III secretion system of Pseudomonas aeruginosa. The N-terminal half of ExoU contains a patatin-like phospholipase A(2) (PLA(2)) domain that requires the host cell cofactor superoxide dismutase 1 (SOD1) for activation, while ...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.00223-10
更新日期:2010-08-01 00:00:00
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journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.65.6.2396-2401.1997
更新日期:1997-06-01 00:00:00
abstract::Studies of mice suggest that pneumococcal proteins, including PspA, pneumolysin, PsaA, and CbpA, are promising vaccine candidates. To determine whether these proteins are good mucosal immunogens in humans, adenoidal lymphocytes from 20 children who had adenoidectomies were isolated and tested by ELISpot for antigen-sp...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/iai.70.10.5363-5369.2002
更新日期:2002-10-01 00:00:00
abstract::Using the indirect fluorescein-labeled and indirect peroxidase-antiperoxidase-labeled immunohistochemical techniques, and utilizing both antiserum specific for the beta-subunit of choriogonadotropin and antiserum for the total hormone, we have demonstrated the presence of a choriogonadotropin-like immunoreactive mater...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.24.3.920-924.1979
更新日期:1979-06-01 00:00:00
abstract::Staphylococcus aureus Newman with an insertion mutation in clfB, the gene encoding clumping factor B, only marginally decreased infection rate (P>0.05) in rats with experimental endocarditis. In contrast, clfB complementation on a multicopy plasmid significantly increased infectivity (P<0.05) over the deleted mutants....
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/iai.68.9.5443-5446.2000
更新日期:2000-09-01 00:00:00
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journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.20.3.619-626.1978
更新日期:1978-06-01 00:00:00
abstract::Black melanin-like pigments are produced by several neurotropic fungi, including Cryptococcus neoformans. Pigment production is associated with virulence. In media containing phenolic substrates such as L-dopa, C. neoformans cells become black as a result of pigment accumulation. Pigmented and nonpigmented C. neoforma...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.63.8.3131-3136.1995
更新日期:1995-08-01 00:00:00
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journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.65.2.412-421.1997
更新日期:1997-02-01 00:00:00
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journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.12.4.901-909.1975
更新日期:1975-10-01 00:00:00
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journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.3.2.243-248.1971
更新日期:1971-02-01 00:00:00
abstract::Mycobacterium avium subsp. paratuberculosis is the causative agent of Johne's disease in cattle. The complex, multifaceted interaction of M. avium subsp. paratuberculosis with its host includes dampening the ability of infected cells to respond to stimuli that promote M. avium subsp. paratuberculosis clearance. By dis...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.00785-12
更新日期:2013-01-01 00:00:00
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journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/iai.71.5.2966-2969.2003
更新日期:2003-05-01 00:00:00
abstract::The protective efficacy of Mycobacterium bovis BCG can be markedly augmented by stable integration of Mycobacterium tuberculosis genomic region RD1. BCG complemented with RD1 (BCG::RD1) encodes nine additional proteins. Among them, 10-kDa culture filtrate protein (CFP-10) and ESAT-6 (6-kDa early secreted antigenic tar...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/iai.72.4.2170-2176.2004
更新日期:2004-04-01 00:00:00
abstract::Uropathogenic Escherichia coli (UPEC) is responsible for the majority of uncomplicated urinary tract infections (UTI) and represents the most common bacterial infection in adults. UPEC utilizes a wide range of virulence factors to colonize the host, including the novel repeat-in-toxin (RTX) protein TosA, which is spec...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.05713-11
更新日期:2012-02-01 00:00:00
abstract::Microbial survival in a host is usually dependent on the ability of a pathogen to undergo changes that promote escape from host defense mechanisms. The human-pathogenic fungus Cryptococcus neoformans undergoes phenotypic switching in vivo that promotes persistence in tissue. By microarray and real-time PCR analyses, t...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.01079-08
更新日期:2009-01-01 00:00:00
abstract::The compositions of lipopolysaccharides I and II, isolated from Coxiella burnetii phase I and pure phase II cells, respectively, showed drastic and clear-cut differences. Lipopolysaccharide II exhibited a comparatively simple composition. It contained, in addition to glucosamine (from lipid A) and a 2-keto-3-deoxyoctu...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.38.1.53-57.1982
更新日期:1982-10-01 00:00:00
abstract::Chromosomal DNA from a uropathogenic strain of Escherichia coli was partially digested with the restriction enzyme EcoRI. The partial digests were ligated into a cosmid containing an ampicillin-resistant determinant and packaged into lambda phage particles. An ampicillin-resistant transductant of E. coli HB101 was fou...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.38.2.739-744.1982
更新日期:1982-11-01 00:00:00
abstract::The adsorption of (3)H-labeled Streptococcus mutans 6715 cells to disks of hydroxyapatite (HA) was studied. The number of streptococci that adsorbed was logarithmically related to the concentration of cells available up to at least 2 x 10(8) per ml; equilibrium occurred within 45 min. Assay reliability was verified by...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.18.2.514-523.1977
更新日期:1977-11-01 00:00:00