Abstract:
:Francisella tularensis subspecies (subsp.) tularensis is a CDC Category A biological warfare agent and inhalation of as few as 15 bacilli can initiate severe disease. Relatively little is known about the cellular and molecular mechanisms of host defense against respiratory infection with subsp. tularensis. In this study, we examined the role of neutrophils and NADPH phagocyte oxidase in host resistance to pulmonary infection in a mouse intranasal infection model. We found that despite neutrophil recruitment to the lungs and increased concentrations of neutrophil-chemotactic chemokines (KC, MIP-2 and RANTES) in the bronchoalveolar lavage fluid following intranasal inoculation of the pathogen, neither depletion of neutrophils nor enhancement of their recruitment into the lungs had any impact on bacterial burdens or survival rate/time. Nevertheless, mice deficient in NADPH phagocyte oxidase (gp91(phox⁻/⁻)) did exhibit higher tissue and blood bacterial burdens and succumbed to infection one day earlier than wild-type C57BL/6 mice. These results imply that although neutrophils are not a major effector cell in defense against subsp. tularensis infection, NADPH phagocyte oxidase does play a marginal role.
journal_name
Microbes Infectjournal_title
Microbes and infectionauthors
KuoLee R,Harris G,Conlan JW,Chen Wdoi
10.1016/j.micinf.2011.01.010subject
Has Abstractpub_date
2011-05-01 00:00:00pages
447-56issue
5eissn
1286-4579issn
1769-714Xpii
S1286-4579(11)00040-2journal_volume
13pub_type
杂志文章abstract::Parachlamydia acanthamoebae is an obligate intracellular bacterium naturally infecting free-living amoebae. The role of this bacterium as an agent of pneumonia is suggested by sero-epidemiological studies and molecular surveys. Furthermore, P. acanthamoebae may escape macrophages microbicidal effectors. Recently, we d...
journal_title:Microbes and infection
pub_type: 杂志文章
doi:10.1016/j.micinf.2015.08.007
更新日期:2015-11-01 00:00:00
abstract::Exhaustive information on the Epstein-Barr virus, a member of the herpes family, is described at the International Herpes Management Forum web-site. Cervical cancer associations, AIDS treatment projects, and the Los Alamos National Laboratories provide useful information on papillomavirus infections, as well as hyperl...
journal_title:Microbes and infection
pub_type: 杂志文章
doi:10.1016/s1286-4579(00)01308-3
更新日期:2000-10-01 00:00:00
abstract::Antineutrophil cytoplasmic antibodies (ANCA) directed against bactericidal/permeability-increasing protein (BPI) were repeatedly found in cystic fibrosis (CF) patients. We analyzed the effect of BPI-ANCA in inhibiting neutrophil-mediated killing of Pseudomonas aeruginosa. The bactericidal effect expressed as percentag...
journal_title:Microbes and infection
pub_type: 信件
doi:10.1016/s1286-4579(02)00049-7
更新日期:2003-01-01 00:00:00
abstract::Clostridium difficile is now established as a major nosocomial pathogen. C. difficile infection is seen almost exclusively as a complication of antibiotic therapy, and is particularly associated with clindamycin and third-generation cephalosporins. Depletion of the indigenous gut microflora by antibiotic therapy has l...
journal_title:Microbes and infection
pub_type: 杂志文章,评审
doi:10.1016/s1286-4579(99)80054-9
更新日期:1999-04-01 00:00:00
abstract::We tested the hypothesis that host resistance to Campylobacter jejuni is Nramp1 dependent. Following intraperitoneal (IP) inoculation of Nramp1+/+ and isogenic Nramp1-deficient (Nramp1-/-) mice C. jejuni primarily associated with mac1-positive cells in liver tissue. A significant reduction of C. jejuni was observed in...
journal_title:Microbes and infection
pub_type: 杂志文章
doi:10.1016/j.micinf.2008.05.001
更新日期:2008-07-01 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::Receptor-mediated endocytosis is known to play an important role in the entry of many viruses into host cells. However, the exact internalization mechanism has, until recently, remained poorly understood for many medically important viruses, including influenza. Developments in real-time imaging of single viruses as w...
journal_title:Microbes and infection
pub_type: 杂志文章,评审
doi:10.1016/j.micinf.2004.05.002
更新日期:2004-08-01 00:00:00
abstract::We produced a B95a lymphoid cell line persistently infected with canine distemper virus (CDV), in which virus-specific antigens were present in nearly 100% of cells without causing cytopathic effect. The virus recovered from this cell line was able to infect fresh B95a cells persistently, indicating that a persistent ...
journal_title:Microbes and infection
pub_type: 杂志文章,评审
doi:10.1016/s1286-4579(99)80516-4
更新日期:1999-10-01 00:00:00
abstract::Group 1 and group 2 CD1 present both self and microbial lipid antigens to T cells. While group 1 CD1-restricted T cells are known for their ability to recognize mycobacterial glycolipid antigens, group 2 CD1-restricted T cells are recognized as regulatory T cells that can influence the outcome of innate and adaptive i...
journal_title:Microbes and infection
pub_type: 杂志文章,评审
doi:10.1016/j.micinf.2004.12.012
更新日期:2005-03-01 00:00:00
abstract::Vibrio vulnificus is capable of causing severe and often fatal infections in susceptible individuals. It causes two distinct disease syndromes, a primary septicemia and necrotizing wound infections. This review discusses the interaction of environmental conditions, host factors, and bacterial virulence determinants th...
journal_title:Microbes and infection
pub_type: 杂志文章,评审
doi:10.1016/s1286-4579(00)00270-7
更新日期:2000-02-01 00:00:00
abstract::The systemic inflammatory response syndrome (SIRS) is the body's response to an infectious or noninfectious insult. Although the definition of SIRS refers to it as an "inflammatory" response, it actually has pro- and anti-inflammatory components. This review outlines the pathophysiology of SIRS and highlights potentia...
journal_title:Microbes and infection
pub_type: 杂志文章,评审
doi:10.1016/j.micinf.2005.12.016
更新日期:2006-04-01 00:00:00
abstract::The immune response, both in innate and adaptive immunity, is controlled at several levels, including signaling from the central nervous system. Neuropeptides released within the lymphoid organs modulate the immune response, either as stimulators or inhibitors. The subject of this review is the description of macropha...
journal_title:Microbes and infection
pub_type: 杂志文章,评审
doi:10.1016/s1286-4579(00)01361-7
更新日期:2001-02-01 00:00:00
abstract::Human immunodeficiency virus type 1 (HIV-1) mostly owes its success to its ability to evade host immune responses. Understanding viral immune escape mechanisms is a prerequisite to improve future HIV-1 vaccine design. This review focuses on the strategies that HIV-1 has evolved to evade recognition by natural killer (...
journal_title:Microbes and infection
pub_type: 杂志文章,评审
doi:10.1016/j.micinf.2012.05.001
更新日期:2012-09-01 00:00:00
abstract::Neisseria meningitidis is an opportunistic human pathogen that usually colonizes the nasopharyngeal mucosa asymptomatically. Upon invasion into the blood and central nervous system, this bacterium triggers a fulminant inflammatory reaction with the manifestations of septicemia and meningitis, causing high morbidity an...
journal_title:Microbes and infection
pub_type: 杂志文章
doi:10.1016/j.micinf.2015.09.025
更新日期:2016-02-01 00:00:00
abstract::Infection with Helicobacter pylori cagA-positive strains plays an essential role in the development of gastric carcinoma. This review summarizes the pathophysiological functions of the cagA gene product, CagA, particularly focusing on the molecular mechanisms underlying CagA translocation into the host cells as well a...
journal_title:Microbes and infection
pub_type: 杂志文章,评审
doi:10.1016/j.micinf.2011.03.011
更新日期:2011-09-01 00:00:00
abstract::Several observations suggest that inhibition of the host complement alternative pathway by Ixodes tick saliva is crucial to achieve blood feeding. We recently described two paralogous anti-complement proteins called Ixodes ricinus anti-complement (IRAC) proteins I and II co-expressed in I. ricinus salivary glands. Phy...
journal_title:Microbes and infection
pub_type: 信件
doi:10.1016/j.micinf.2006.10.020
更新日期:2007-02-01 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::Leishmania amazonensis infection promotes alteration of host cellular signaling and intracellular parasite survival, but specific mechanisms are poorly understood. We previously demonstrated that L. amazonensis infection of dendritic cells (DC) activated extracellular signal-regulated kinase (ERK), an MAP-kinase kinas...
journal_title:Microbes and infection
pub_type: 杂志文章
doi:10.1016/j.micinf.2013.12.006
更新日期:2014-04-01 00:00:00
abstract::Absent in melanoma 2 (AIM2) is a sensor of cytosolic dsDNA and is responsible for the activation of inflammatory and host immune responses to DNA viruses and intracellular bacteria. AIM2 is a member of the hematopoietic interferon-inducible nuclear proteins with a 200 amino-acid repeat (HIN200) family, containing a py...
journal_title:Microbes and infection
pub_type: 杂志文章
doi:10.1016/j.micinf.2018.09.001
更新日期:2019-03-01 00:00:00
abstract::Protein kinase RNA activated (PKR) is a crucial mediator of anti-viral responses but is reported to be activated by multiple non-viral stimuli. However, mechanisms underlying PKR activation, particularly in response to bacterial infection, remain poorly understood. We have investigated mechanisms of PKR activation in ...
journal_title:Microbes and infection
pub_type: 杂志文章
doi:10.1016/j.micinf.2016.03.010
更新日期:2016-07-01 00:00:00
abstract::Strongyloides venezuelensis migrates through the lungs and induces airway hyperresponsiveness (AHR). The present study evaluated the role of C-fibers in mediating airway inflammation and AHR after infection of rats with S. venezuelensis. Neonatal treatment with capsaicin effectively depleted sensory nerves. This was a...
journal_title:Microbes and infection
pub_type: 杂志文章
doi:10.1016/j.micinf.2008.11.015
更新日期:2009-02-01 00:00:00
abstract::Gliotoxin is a mycotoxin having a considerable number of immuno-suppressive actions and is produced by several moulds such as Aspergillus fumigatus. In this study, we investigated its toxic effects on human neutrophils at concentrations corresponding to those found in the blood of patients with invasive aspergillosis....
journal_title:Microbes and infection
pub_type: 杂志文章
doi:10.1016/j.micinf.2006.10.009
更新日期:2007-01-01 00:00:00
abstract::Brucella abortus is an intracellular bacterium that establishes lifelong infections in livestock and humans although the mechanisms of its chronicity are poorly understood. Activated B cells have long lifespan and B. abortus infection activates B cells. Our results indicate that the direct infection of B cells with B....
journal_title:Microbes and infection
pub_type: 杂志文章
doi:10.1016/j.micinf.2016.04.001
更新日期:2016-09-01 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::Recent studies by DNA-DNA hybridisation assays conducted on a large collection of Escherichia coli strains isolated from chickens, ducks and turkeys suffering from colibacillosis, showed that 76% of the strains were negative for the presence of the pap gene cluster. The objective of this paper was to study the virulen...
journal_title:Microbes and infection
pub_type: 杂志文章
doi:10.1016/j.micinf.2004.03.006
更新日期:2004-06-01 00:00:00
abstract::Human infection with Toxoplasma gondii is generally asymptomatic in immunocompetent adults while it causes significant morbidity in congenitally infected children. Cell mediated immunity plays the main role in host resistance to T. gondii infection and a Th1 cytokine profile is necessary for protection and control of ...
journal_title:Microbes and infection
pub_type: 杂志文章
doi:10.1016/j.micinf.2006.10.017
更新日期:2007-02-01 00:00:00
abstract::The primary purpose of preoperative dental screening of medical patients is to detect acute or chronic oral conditions that may require management prior to planned medical interventions. The aim of this communication is to discuss the background of preoperative dental screening and the link between dental pathologies ...
journal_title:Microbes and infection
pub_type: 杂志文章,评审
doi:10.1016/j.micinf.2016.10.002
更新日期:2017-02-01 00:00:00
abstract::Microsporidia are intracellular pathogens that cause severe disease in immunocompromised humans and animals. We recently demonstrated that XID mice are more susceptible to Encephalitozoon cuniculi infection by intraperitoneal route, evidencing the role of B-1 cells in resistance against infection. The present study in...
journal_title:Microbes and infection
pub_type: 杂志文章
doi:10.1016/j.micinf.2017.11.004
更新日期:2018-03-01 00:00:00
abstract::Our previous study demonstrated the anti-apoptosis function of the human immunodeficiency virus type 1 (HIV-1) vpu gene product in normal CD4+ T lymphocytes. In this study, using sequences obtained from the HIV sequence database, we compared vpu sequences from 184 preparations of various subtypes of HIV-1 from diverse...
journal_title:Microbes and infection
pub_type: 杂志文章
doi:10.1016/j.micinf.2004.09.017
更新日期:2005-02-01 00:00:00
abstract::This study examined the impact of concurrent parasite infections (amoebiasis, filariasis, necatoriasis) and the effect of anti-parasite treatment on cytokine and chemokine responses in singly and poly-parasitized patients. Cellular reactivity and parasite-specific Th1- and Th2-type cytokine and chemokine profiles were...
journal_title:Microbes and infection
pub_type: 杂志文章
doi:10.1016/j.micinf.2005.06.019
更新日期:2006-01-01 00:00:00