Abstract：
:The PE and PPE family of proteins of Mycobacterium tuberculosis have been hypothesized to play important roles in the biology of the organism and some proteins have been shown to be involved in eliciting T-cell responses. Earlier, we had identified putative HLA class I binding epitopes of the PE and PPE proteins of Mycobacterium tuberculosis employing computational and molecular modeling approaches. In the present work, three of the PE/PPE family proteins, coded by Rv1818c, Rv3812 and Rv3018c genes, were selected based on the computational analysis for testing human immune responses. PBMCs from patients with active tuberculosis and healthy, BCG vaccinated, PPD-positive individuals were tested for in vitro proliferative response and gamma-interferon production using synthetic peptides derived from the chosen proteins. Significant differences were seen in the responsiveness between healthy controls and patients. Antigen-specific T-cell lines were established from the PBMCs of healthy controls and their responses to peptide-specific CD8+ T-cell effectors were shown to be present at high frequency in the PBMCs of PPD+ controls. The T-cell lines also showed cytotoxic activity against the peptide pulsed monocytes.
journal_name
Microbes Infectjournal_title
Microbes and infectionauthors
Chaitra MG,Shaila MS,Nayak Rdoi
10.1016/j.micinf.2008.04.017subject
Has Abstractpub_date
2008-07-01 00:00:00pages
858-67issue
8eissn
1286-4579issn
1769-714Xpii
S1286-4579(08)00121-4journal_volume
10pub_type
杂志文章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：:Coxiella burnetii is an intracellular bacterium that causes acute and chronic Q fever. This unique pathogen has been historically challenging to study due to obstacles in genetically manipulating the organism and the inability of small animal models to fully mimic human Q fever. Here, we review the current state of C....
journal_title：Microbes and infection
pub_type： 杂志文章,评审
doi：10.1016/j.micinf.2019.09.001
更新日期：2020-04-01 00:00:00
abstract：:Innate lymphoid cells (ILCs) are the innate counterpart of T cells. Upon infection or injury, ILCs react promptly to direct the developing immune response to the one most adapted to the threat facing the organism. Therefore, ILCs play an important role early in resistance to infection, but also to maintain homeostasis...
journal_title：Microbes and infection
pub_type： 杂志文章,评审
doi：10.1016/j.micinf.2018.05.003
更新日期：2018-01-01 00:00:00
abstract：:Francisella tularensis causes the zoonosis tularemia in humans, and inhaled F. tularensis ssp. novicida induces lethal murine tularemia. Transcription of virulence factors in F. novicida is regulated by macrophage growth locus A (mglA), a global regulator required for bacterial replication in macrophages in vitro. We ...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2008.04.008
更新日期：2008-06-01 00:00:00
abstract：:BCG rectal administration to newborn and adult mice induced protective immune responses against tuberculosis. BCG reaches the sub-epithelial site and the draining mesenteric lymph nodes (MLNs), and dendritic cells (DC) could be recruited to these sites. Using polarized Caco-2 epithelial cells, we showed that BCG trans...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2006.03.022
更新日期：2006-08-01 00:00:00
abstract：:Translocation of normally non-pathogenic bacteria across the gut may drive inflammatory responses associated with sepsis and inflammatory bowel disease. Recent evidence suggests translocation may not be purely passive, but occurs via novel transcellular pathways activated in enterocytes by inflammatory and metabolic s...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2008.01.001
更新日期：2008-04-01 00:00:00
abstract：:Apoptosis signal-regulating kinase 1 (ASK1) is a mitogen-activated protein kinase kinase kinase which plays pivotal roles in stress and immune responses. This review is focused on three major subjects on ASK1: the regulatory mechanisms of the kinase activity, the pathophysiological roles in stress response and innate ...
journal_title：Microbes and infection
pub_type： 杂志文章,评审
doi：10.1016/j.micinf.2005.12.001
更新日期：2006-04-01 00:00:00
abstract：:The virulence of Paracoccidioides brasiliensis can be attenuated or lost after long periods of repeated subculturing and reestablished after animal inoculation. Only one adhesin (gp43) has been described until now, among the various identified components of P. brasiliensis, and gp43 shows adhesion to laminin. Thus, th...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2005.02.005
更新日期：2005-05-01 00:00:00
abstract：:Francisella tularensis induces apoptosis within macrophages but the temporal and spatial modulation through activation of caspase-1, caspase-3, and the anti-apoptosis nuclear transcription factor B (NF-kappaB) is not known. Whether escape of the bacteria into the cytosol is sufficient and/or essential for activation o...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2009.11.003
更新日期：2010-02-01 00:00:00
abstract：:Osteoarticular brucellosis is the most frequent complication of active disease. A large amount of cells in bone are osteocytes. Since bone remodeling process is regulated by hormones we sought to study the effect of cortisol and DHEA in Brucella abortus-infected osteocytes. Cortisol treatment inhibited the expression ...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2019.01.004
更新日期：2019-01-01 00:00:00
abstract：:T cells are thought to play a critical role in cerebral malaria pathogenesis. However, available evidences are restricted to rodent models in which V beta specific T cell expansion has been associated with neurological syndrome suggesting involvement of superantigens or dominant antigens. Using flow cytometry, we stud...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2007.05.019
更新日期：2007-09-01 00:00:00
abstract：:Cytolytic T-cell responses from 63 normal blood donors were monitored in a Mycobacterium bovis BCG infection system in vitro. We wanted to know whether cultured dendritic cells were capable of potentiating the cytolytic T-cell responses to M. bovis BCG. Infected cultured dendritic cells were up to ten times more effec...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/s1286-4579(99)80077-x
更新日期：1999-08-01 00:00:00
abstract：:Staphylococcus aureus infections are of major importance in human and veterinary medicine. Studies of the virulence of this bacterium are complicated by inconsistent results obtained in different animal models. We searched for an uncomplicated and inexpensive model suitable to study virulence of poultry strains of S. ...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2012.09.006
更新日期：2012-11-01 00:00:00
abstract：:The purpose of this study was to investigate the in vitro antiviral properties of pterocarnin A, extracted from the bark of Pterocarya stenoptera (Juylandaceae). Results showed that pterocarnin A exhibited anti-herpes simplex virus (HSV) activity. It had a low selectivity index (SI) value and only possessed some level...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2004.03.009
更新日期：2004-07-01 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：: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：:Research into intracellular sensing of microbial products is an up and coming field in innate immunity. Nod1 and Nod2 are members of the rapidly expanding family of NACHT domain-containing proteins involved in intracellular recognition of bacterial products. Nods proteins are involved in the cytosolic detection of pep...
journal_title：Microbes and infection
pub_type： 杂志文章,评审
doi：10.1016/j.micinf.2007.01.014
更新日期：2007-04-01 00:00:00
abstract：:Syphilis, a sexually transmitted infection caused by the spirochetal bacterium Treponema pallidum, remains a global public health problem. T. pallidum is believed to be an extracellular pathogen and, as such, the identification of T. pallidum outer membrane proteins that could serve as targets for opsonic or bacterici...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2007.05.018
更新日期：2007-09-01 00:00:00
abstract：:E protein is a membrane component of severe acute respiratory syndrome coronavirus (SARS-CoV). Disruption of E protein may reduce viral infectivity. Thus, the SARS-CoV E protein is considered a potential target for the development of antiviral drugs. However, the cellular immune responses to E protein remain unclear i...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2006.05.008
更新日期：2006-08-01 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
abstract：:The epidemiologically important Mycobacterium tuberculosis Beijing genotype strains, highly endemic in East Asia, have become an emerging infection in certain geographic areas, including Russia, because of its increasing prevalence and association with multidrug resistance (MDR). The aim was to verify whether MDR Beij...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2010.02.008
更新日期：2010-06-01 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：:Anaerobic bacteria can cause a variety of endogenous infections in children. Because of their fastidious nature, they are difficult to isolate from infectious sites, and are often overlooked. Anaerobic infections can occur in all body sites, including the central nervous system, oral cavity, head and neck, chest, abdo...
journal_title：Microbes and infection
pub_type： 杂志文章,评审
doi：10.1016/s1286-4579(02)01656-8
更新日期：2002-10-01 00:00:00
abstract：:The 3'-5'-cyclic guanosine monophosphate (cGMP)-dependent protein kinase (PKG) is the main mediator of cGMP signalling in the malaria parasite. This article reviews the role of PKG in Plasmodium falciparum during gametogenesis and blood stage schizont rupture, as well as the role of the Plasmodium berghei orthologue i...
journal_title：Microbes and infection
pub_type： 杂志文章,评审
doi：10.1016/j.micinf.2012.04.011
更新日期：2012-08-01 00:00:00
abstract：:Intracellular replication of Cryptosporidium parvum (Apicomplexa) involves the generation of several asexual and sexual forms of the parasite. During the stage conversions, complex mechanisms lead to differential structural and functional properties of the parasite. These require a well tuned gene transcription machin...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2006.04.012
更新日期：2006-07-01 00:00:00
abstract：:This review considers whether the products of schistosomes in the mammalian host can be considered as virulence factors. These include: the cercarial secretions used in infection, those of the migrating schistosomulum, surface-exposed proteins of adult worms in the portal system and their gut vomitus in the context of...
journal_title：Microbes and infection
pub_type： 杂志文章,评审
doi：10.1016/j.micinf.2012.09.001
更新日期：2012-12-01 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：:Highly pathogenic Yersinia carry a pathogenicity island termed high-pathogenicity island (HPI). The Yersinia HPI comprises genes involved in the synthesis of the siderophore yersiniabactin and can thus be regarded as an iron-uptake island. A unique characteristic of the HPI is its wide distribution among different ent...
journal_title：Microbes and infection
pub_type： 杂志文章,评审
doi：10.1016/s1286-4579(01)01412-5
更新日期：2001-06-01 00:00:00
abstract：:Erysipelothrix rhusiopathiae is the causative agent of erysipelas in animals and erysipeloid in humans. In the absence of specific antibodies, the organism evades phagocytosis by phagocytic cells, but even if phagocytized, it is able to replicate intracellulary in these cells. In this review, recent advances in our un...
journal_title：Microbes and infection
pub_type： 杂志文章,评审
doi：10.1016/s1286-4579(00)00397-x
更新日期：2000-07-01 00:00:00
abstract：:The strategies that allow Brucella abortus to persist for years inside macrophages subverting host immune responses are not completely understood. Immunity against this bacterium relies on the capacity of IFN-γ to activate macrophages, endowing them with the ability to destroy intracellular bacteria. We report here th...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2010.10.020
更新日期：2011-03-01 00:00:00
