Abstract:
:Latent Mycobacterium tuberculosis (Mtb) infection (LTBI) is the main clinical manifestation after Mtb exposure. During the latent phase, Mtb retards the attempts of eradication by the host immune system. The dormancy survival regulator (DosR) is held as essential for Mtb persistence. Rv1737c is predominantly expressed by the Mtb in latent infection. However, the role of Rv1737c in the immune evasion is still largely unknown. In this study, we have characterized the Rv1737c functions in the recruitment and activation of macrophages, which play a cardinal role in the innate and adaptive immunity. For the first time, we have revealed that Rv1737c induced the tolerogenic phenotype of macrophages by upregulating the expression of indoleamine 2,3-dioxygenase 1 (IDO1). Rv1737c-activated macrophages upregulated interleukin (IL)-4, IL-10, and Foxp3 T cells proliferation in vitro. Furthermore, the interaction of Rv1737c with macrophages was found to depend on the Toll-like receptor 2 (TLR2) pathway. It augmented nuclear factor κB (NF-κB) phosphorylation and co-stimulatory molecule expression. Thus, this study provides a crucial insight into a strategy adopted by Mtb to survive in the host by inducing tolerogenic macrophage expansion.
journal_name
Cell Immunoljournal_title
Cellular immunologyauthors
Gao X,Wu C,He W,Wang X,Li Y,Wang Y,Jia Y,Yuan R,Li H,Zhang Bdoi
10.1016/j.cellimm.2019.103947subject
Has Abstractpub_date
2019-10-01 00:00:00pages
103947eissn
0008-8749issn
1090-2163pii
S0008-8749(18)30365-4journal_volume
344pub_type
杂志文章abstract::Myeloid-derived suppressor cells (MDSCs) play a major role in modulating immune response, but only a few reports focused on MDSCs in the liver of sepsis states. Here, we investigated the changes in MDSCs in liver of the cecal ligation and puncture (CLP) mice. The results of flow cytometry showed that MDSCs accumulate ...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/j.cellimm.2012.08.005
更新日期:2012-09-01 00:00:00
abstract::T cell hybridomas that are deathless upon TCR crosslinking were generated from lpr mice. The deathless hybridomas (1.4 and 5D5) expressed extremely low Fas even after anti-CD3 activation, whereas activation-induced cell death (AICD) was observed for Fas-expressing hybridomas. The deathless hybridomas were activated to...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1006/cimm.1996.0039
更新日期:1996-02-01 00:00:00
abstract::Using an in vitro model, we demonstrate that when CD4 T cells from HIV infected subjects are enriched from total blood lymphocytes the immune response to antigen is augmented. However, augmentation of this response is confined to HIV infected subjects with relatively preserved CD4 T cell counts. Enriching for CD4 T ce...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/j.cellimm.2006.09.003
更新日期:2006-07-01 00:00:00
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journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1006/cimm.1997.1180
更新日期:1997-10-10 00:00:00
abstract::Unconventional T cells are gaining center stage as important effector and regulatory cells that orchestrate innate and adaptive immune responses. Human Vγ9/Vδ2 T cells are amongst the best understood unconventional T cells, as they are easily accessible in peripheral blood, can readily be expanded and manipulated in v...
journal_title:Cellular immunology
pub_type: 杂志文章,评审
doi:10.1016/j.cellimm.2015.01.008
更新日期:2015-07-01 00:00:00
abstract::Double immunofluorescence studies for terminal deoxynucleotidyl transferase (TdT) and leucocyte surface membrane antigens have been used to characterize the small subpopulation of TdT-positive cells in human peripheral blood. The predominant antigens demonstrated were those coded for by the major histocompatibility co...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(85)90223-0
更新日期:1985-02-01 00:00:00
abstract::In the present report, we demonstrated that extrathymic gamma(delta) T cells proliferated in the mixed culture of lymph node cells of BALB/c nu/nu mice and irradiated syngeneic spleen cells (syngeneic MLR). Reverse transcription-polymerase chain reaction (RT-PCR) analyses revealed that V(delta)5 and V(delta)6 were dom...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1006/cimm.1996.0250
更新日期:1996-10-10 00:00:00
abstract::The adoptive transfer of tumor-reactive T lymphocytes has recently been demonstrated to be an effective means for mediating the regression of experimental intracranial fibrosarcomas. In this study, mice bearing syngeneic intracranial GL261 gliomas were cured by the combination of sublethal whole body irradiation follo...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1006/cimm.1997.1140
更新日期:1997-06-15 00:00:00
abstract::Eighty-seven murine monoclonal antibodies (MAb) produced against human tumors of various origins and representing six different immunoglobulin classes were tested for antitumor reactivity in antibody-dependent cell-mediated cytotoxicity (ADCC) and complement-dependent cytotoxicity (CDC) assays. Mouse splenocytes, thio...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(85)90068-1
更新日期:1985-04-15 00:00:00
abstract::Altered neutrophil function may contribute to the development of AIDS during the course of HIV infection. It has been described that Nef, a regulatory protein from HIV, can modulate superoxide production in other cells, therefore altered superoxide production in neutrophils from HIV infected patients, could be seconda...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/j.cellimm.2010.03.012
更新日期:2010-01-01 00:00:00
abstract::The murine T cell hybridoma line, MBI-1.15, secretes a 17-kDa protein which decreases binding activity of the CD23 molecule for its natural ligand, IgE. This protein, denoted epsilon receptor-modulating protein (epsilon RMP), was previously characterized and shown to be a novel serine protease. The present studies sho...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1006/cimm.1994.1036
更新日期:1994-02-01 00:00:00
abstract::We have previously shown that interleukin-2 (IL-2) is able to induce the generation of natural killer (NK) activity in bone marrow (BM) cells from mice pretreated with 5-fluorouracil. IL-2 alone could dose-dependently induce NK activity in marrow cells and interleukin-4 (IL-4) has dual effect on the NK activity in tha...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(91)90394-q
更新日期:1991-08-01 00:00:00
abstract::Mycobacterium bovis BCG and its subcellular components (bacterial extract, culture filtrate, purified protein derivative, and muramyl dipeptide MDP) are potent in vitro IL-6 inducers in spleen cell cultures from uninfected and BCG-infected BALB/c mice. Both plastic adherent and nonadherent spleen cells are capable of ...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(91)90071-i
更新日期:1991-10-01 00:00:00
abstract::A spontaneously arising murine plasmacytoma, HPC-202, derived from a BALB/c.H-2b congenic mouse that lacks any detectable H-2 determinants on its cell surface is described. However, the expression of H-2 determinants is inducible by interferon-gamma. The H-2 negative cell surface phenotype permits the HPC-202 tumor to...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(90)90114-7
更新日期:1990-04-15 00:00:00
abstract::We investigated the regulation of IL6 biological activity, de novo synthesis, and mRNA levels in adult vascular endothelial cells (EC) by bacterial endotoxin or inflammatory cytokines. Cells incubated without stimulus released scant IL6 activity. IFN gamma, IL2, or PDGF did not augment IL6 release from EC. LPS, lipid ...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(89)90095-6
更新日期:1989-09-01 00:00:00
abstract::T-Cell subsets identified by polyclonal and monoclonal antibodies to dipeptidyl peptidase IV (DP IV) were investigated. Analysis in a cytofluorograf revealed 63 +/- 7% positive scatter-gated T lymphocytes. DP IV-positive cells were found to be T11+, 74-81% OKT4+, and 12-19% OKT8+. DP IV-negative cells were T11+ and co...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(85)90400-9
更新日期:1985-06-01 00:00:00
abstract::During normal lymphocyte recirculation and in chronic inflammation, lymphocytes emigrate from blood into the perivascular tissue. The mechanism of lymphocyte migration through the endothelial cell (EC) layer of blood vessels is poorly understood. To identify factors that control lymphocyte emigration, a method has bee...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(88)90324-3
更新日期:1988-07-01 00:00:00
abstract::Human mononuclear cells stimulated with soluble IgG aggregates generated chemiluminescence, a response attributable to monocytes. Some requirements of this reaction were examined by preincubation of the cells with a variety of inhibitors. The protease antagonists TPCK and TLCK, the phospholipase inhibitors quinacrine ...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(84)90149-7
更新日期:1984-08-01 00:00:00
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journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1006/cimm.1999.1523
更新日期:1999-08-01 00:00:00
abstract::Peripheral CD4+CD8+ T cells have been identified as a T cell subset existing in animals and humans. However, the characterization of CD4+CD8+ T cells, their relationship with T memory (T(M)), T effector (T(E)), Th1/Th2, Treg and Th-17, remain unclear. This study was to characterize the CD4+CD8+ T cells. The results fr...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/j.cellimm.2009.06.011
更新日期:2009-01-01 00:00:00
abstract::The effect of programmed death 1 (PD-1) on cytomegalovirus (CMV)-specific T cells has not been thoroughly examined. We evaluated the involvement of exhausted CMV-specific T cells in persistent CMV infection after allogeneic hematopoietic stem cell transplantation (HSCT). CMV-specific CD8+ T cells obtained from an HLA-...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/j.cellimm.2014.02.007
更新日期:2014-03-01 00:00:00
abstract::The anti-spirochete T cell immune response to immunization with Borrelia burgdorferi was investigated. The cellular immune response to vaccination of immunocompetent BALB/c mice was characterized initially in vitro by assay of the proliferative response of primary lymph node cells to B. burgdorferi sonicate. Subsequen...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1006/cimm.1995.1073
更新日期:1995-05-01 00:00:00
abstract::The regulation of the migratory capacity of Percoll-purified large granular lymphocytes (LGL) into nitrocellulose filters was studied in a 2-hr assay with the use of modified Boyden chambers. Compounds that stimulate the natural killer cytotoxic function of LGL, such as interferons (natural beta, recombinant alpha A, ...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(86)90198-x
更新日期:1986-08-01 00:00:00
abstract::Cultures of gradient-purified human peripheral blood mononuclear cells (PBMC) have been employed to examine the effects of three bacteria-derived human leukocyte interferon subtypes on certain aspects of in vitro immune responses. The addition of highly purified IFN-alpha 1, -alpha 2, -alpha 2/alpha 1 to PMBC cultures...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(83)90161-2
更新日期:1983-12-01 00:00:00
abstract::Development of contact hypersensitivity in mice depends on the migration of Langerhans cells from the epidermis to regional lymph nodes. Since ICAM-1 and LFA-1 play important roles in leukocyte migration, we sought to determine whether in vivo administration of anti-ICAM-1 and anti-LFA-1 antibodies would inhibit conta...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1006/cimm.1994.1285
更新日期:1994-10-15 00:00:00
abstract::A previous report (G. E. Woloschak and D. Senitzer, submitted for publication) has demonstrated that mitogen-stimulated splenocytes fuse at a much higher frequency than untreated splenocytes as measured by the fusion index (a calculation of the number of nuclei in fused cells vs the total number of nuclei). A measurem...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(83)90059-x
更新日期:1983-07-01 00:00:00
abstract::We have previously shown that whole cell preparations of Candida albicans are capable of inducing immunosuppressive B-cell activity both in vivo and in vitro. In an effort to characterize the components of the yeast which manifest this immunomodulatory activity, we have successfully generated a soluble extract with di...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(89)90149-4
更新日期:1989-08-01 00:00:00
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journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1006/cimm.1994.1059
更新日期:1994-03-01 00:00:00
abstract::It has been reported that a muramyl dipeptide (MDP) treatment regimen (200 micrograms MDP per mouse, Days -4, -3, -2, and -1) that, given prophylactically, affords protection against several infectious agents also induces lymph node hyperplasia, lymph node cell (LNC) hyperresponsiveness to mitogens, and spleen cell hy...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1016/0008-8749(85)90248-5
更新日期:1985-04-01 00:00:00
abstract::To improve the engraftment of human peripheral blood lymphocytes (PBL) to severe combined immunodeficient (SCID) mice, and to elucidate the factors which prevent the PBL's survival, we treated SCID mice with mAb, which neutralizes murine IFN-gamma's ability to activate cell-mediated immunity. Compared with untreated m...
journal_title:Cellular immunology
pub_type: 杂志文章
doi:10.1006/cimm.1997.1238
更新日期:1998-01-10 00:00:00