Leishmania-induced increases in activation of macrophage SHP-1 tyrosine phosphatase are associated with impaired IFN-gamma-triggered JAK2 activation.

Abstract:

:Leishmania-induced macrophage (Mphi) dysfunctions have been correlated with altered signaling events. Recent findings from our laboratory suggest that modulation of host protein tyrosine phosphatase (PTP) following Leishmania infection could lead to these Mphi defects. To address this issue, Mphi PTP activity and IFN-gamma-inducible signaling events were evaluated in Leishmania donovani (Ld)-infected cells. We observed that Ld promastigotes can rapidly trigger host PTP activity simultaneously with dephosphorylation of Mphi protein tyrosyl residues and inhibition of protein tyrosine kinase (PTK). Our results further revealed that Mphi SHP-1 PTP was rapidly activated by the infection. This Ld-evoked signaling alteration was reflected by absence of IFN-gamma-induced intracellular phosphorylation. IFN-gamma-inducible JAK2 PTK phosphorylation was also markedly diminished in Ld-infected cells. We also observed that co-immunoprecipitation of JAK2 with SHP-1 was considerably higher in infected as compared to uninfected cells. Altogether, these results suggest that SHP-1-mediated JAK2 dephosphorylation triggered by Leishmania is partly responsible for abnormal Mphi IFN-gamma signaling and represent an important mechanism supporting persistent parasitic infection.

journal_name

Eur J Immunol

authors

Blanchette J,Racette N,Faure R,Siminovitch KA,Olivier M

doi

10.1002/(SICI)1521-4141(199911)29:11<3737::AID-IMM

keywords:

subject

Has Abstract

pub_date

1999-11-01 00:00:00

pages

3737-44

issue

11

eissn

0014-2980

issn

1521-4141

journal_volume

29

pub_type

杂志文章
  • The mer receptor tyrosine kinase: expression and function suggest a role in innate immunity.

    abstract::The mer receptor tyrosine kinase mediates phagocytosis of apoptotic cells and modulates cytokine production; it is also required for prevention of systemic autoimmune disease. Using a mer-specific antibody, we have confirmed the presence of mer on macrophages and now report its expression on NK cells, NKT cells, and d...

    journal_title:European journal of immunology

    pub_type: 杂志文章

    doi:10.1002/eji.200324076

    authors: Behrens EM,Gadue P,Gong SY,Garrett S,Stein PL,Cohen PL

    更新日期:2003-08-01 00:00:00

  • Dimerization of Fab fragments enables ready screening of phage antibodies that affect hepatocyte growth factor/scatter factor activity on target cells.

    abstract::A number of applications of antibodies in diagnosis and therapy require multivalent reagents either because of the polymeric nature of the antigens or because biological activity depends on an effect on the formation of homodimeric species. Here, we report a procedure for mass screening of phage-derived monomeric anti...

    journal_title:European journal of immunology

    pub_type: 杂志文章

    doi:10.1002/eji.1830270307

    authors: Zaccolo M,Griffiths AP,Prospero TD,Winter G,Gherardi E

    更新日期:1997-03-01 00:00:00

  • Target structure for natural killer cells: evidence against a unique role for transferrin receptor.

    abstract::The transferrin receptor (TfR) was recently proposed as putative natural killer (NK) cell target structure. Here data are presented against this hypothesis and it is shown that low TfR expression and high NK sensitivity can occur concommitantly . K562 cells were studied at various stages of cell proliferation. No chan...

    journal_title:European journal of immunology

    pub_type: 杂志文章

    doi:10.1002/eji.1830140412

    authors: Dokhélar MC,Garson D,Testa U,Tursz T

    更新日期:1984-04-01 00:00:00

  • CXCR2 is critical for bacterial control and development of joint damage and pain in Staphylococcus aureus-induced septic arthritis in mouse.

    abstract::Staphylococcus aureus is the main pathogen associated with septic arthritis. Upon infection, neutrophils are quickly recruited to the joint by different chemoattractants, especially CXCR1/2 binding chemokines. Although their excessive accumulation is associated with intense pain and permanent articular damage, neutrop...

    journal_title:European journal of immunology

    pub_type: 杂志文章

    doi:10.1002/eji.201747198

    authors: Boff D,Oliveira VLS,Queiroz Junior CM,Silva TA,Allegretti M,Verri WA Jr,Proost P,Teixeira MM,Amaral FA

    更新日期:2018-03-01 00:00:00

  • LIGHT, a new TNF superfamily member, is essential for memory T helper cell-mediated activation of dendritic cells.

    abstract::LIGHT is a recently identified member of the TNF superfamily that is up-regulated on activated T cells and can cooperate with CD40L to condition DC for the priming of CTL. In this report, we show that an intracellular pool of LIGHT is found selectively in some CD45RA-CD27+CD4+ "central" memory T cells and to a greater...

    journal_title:European journal of immunology

    pub_type: 杂志文章

    doi:10.1002/eji.200324410

    authors: Morel Y,Truneh A,Costello RT,Olive D

    更新日期:2003-11-01 00:00:00

  • CD8alpha+ DC are not the sole subset cross-presenting cell-associated tumor antigens from a solid tumor.

    abstract::One of the clear paradoxes in tumor immunology is the fact that cross-presentation of cell-associated tumor antigens to CD8(+) T cells is efficient, yet CTL generation is weak, and tumors continue to grow. We examined, for the first time whether this may be due to alterations in the phenotype or function of cross-pres...

    journal_title:European journal of immunology

    pub_type: 杂志文章

    doi:10.1002/eji.200940153

    authors: McDonnell AM,Prosser AC,van Bruggen I,Robinson BW,Currie AJ

    更新日期:2010-06-01 00:00:00

  • TLR activation enhances C5a-induced pro-inflammatory responses by negatively modulating the second C5a receptor, C5L2.

    abstract::TLR and complement activation ensures efficient clearance of infection. Previous studies documented synergism between TLRs and the receptor for the pro-inflammatory complement peptide C5a (C5aR/CD88), and regulation of TLR-induced pro-inflammatory responses by C5aR, suggesting crosstalk between TLRs and C5aR. However,...

    journal_title:European journal of immunology

    pub_type: 杂志文章

    doi:10.1002/eji.201041350

    authors: Raby AC,Holst B,Davies J,Colmont C,Laumonnier Y,Coles B,Shah S,Hall J,Topley N,Köhl J,Morgan BP,Labéta MO

    更新日期:2011-09-01 00:00:00

  • NK cell expression of the killer cell lectin-like receptor G1 (KLRG1), the mouse homolog of MAFA, is modulated by MHC class I molecules.

    abstract::Using a new mAb, 2F1, we characterize a mouse natural killer (NK) cell antigen termed 'killer cell lectin-like receptor G1' (KLRG1; formerly mouse MAFA or 2F1-Ag). KLRG1 is expressed on 30-60% of murine NK cells, and a small fraction of T cells, and is composed of a homodimer of glycosylated 30-38-kDa subunits. Striki...

    journal_title:European journal of immunology

    pub_type: 杂志文章

    doi:10.1002/1521-4141(200003)30:3<920::AID-IMMU920>3.0

    authors: Corral L,Hanke T,Vance RE,Cado D,Raulet DH

    更新日期:2000-03-01 00:00:00

  • Cancer-promoting tumor-associated macrophages: new vistas and open questions.

    abstract::Tumor-associated macrophages (TAMs) are key components of the tumor macroenvironment. Cancer- and host cell-derived signals generally drive the functions of TAMs towards an M2-like polarized, tumor-propelling mode; however, when appropriately re-educated. TAMs also have the potential to elicit tumor destructive reacti...

    journal_title:European journal of immunology

    pub_type: 杂志文章,评审

    doi:10.1002/eji.201141894

    authors: Mantovani A,Germano G,Marchesi F,Locatelli M,Biswas SK

    更新日期:2011-09-01 00:00:00

  • Deficiency of high-affinity anti-beta-D-galactosidase antibodies in selected low immune responder mice.

    abstract::Amount and affinity of anti-beta-D-galactosidase-activating antibodies (AAb) were studied in two lines of mice obtained by selective breeding for antibody response to heterologous erythrocytes. These lines, referred to as high (H) and low (L) lines, differ also in their responses to many antigens. Concerning AAb amoun...

    journal_title:European journal of immunology

    pub_type: 杂志文章

    doi:10.1002/eji.1830090312

    authors: Conway de Macario E,Heumann AM,Macario AJ,Biozzi G

    更新日期:1979-03-01 00:00:00

  • Polyclonal Treg cells modulate T effector cell trafficking.

    abstract::In this study, we have analyzed the in vivo dynamics of the interaction between polyclonal Foxp3(+) Treg cells, effector T (Teff) cells, and DCs in order to further our understanding of the mechanisms of Treg cell-mediated suppression. Cotransfer of polyclonal activated Treg cells into healthy mice attenuated the ind...

    journal_title:European journal of immunology

    pub_type: 杂志文章

    doi:10.1002/eji.201141503

    authors: Davidson TS,Shevach EM

    更新日期:2011-10-01 00:00:00

  • Akt2 is required for macrophage chemotaxis.

    abstract::Tumor-associated macrophages play an important role in tumorigenesis and metastasis. Trafficking of macrophages to the proximity of tumors is mediated by CSF-1, a growth factor. In this study, we investigated the role of PKB/Akt in CSF-1-induced macrophage migration. Disruption of Akt2 expression by small interference...

    journal_title:European journal of immunology

    pub_type: 杂志文章

    doi:10.1002/eji.200838809

    authors: Zhang B,Ma Y,Guo H,Sun B,Niu R,Ying G,Zhang N

    更新日期:2009-03-01 00:00:00

  • T cell response to myoglobin: a comparison of T cell clones in high-responder and low-responder mice.

    abstract::Mice carrying the H-2b haplotype (e.g., inbred strains C57BL/6 and C57BL/10) are low responders to sperm whale myoglobin when tested in the T cell proliferation assay. Their response is improved by the removal of the Ly-2+ cells from the lymph node population, but it still remains significantly lower than that of cell...

    journal_title:European journal of immunology

    pub_type: 杂志文章

    doi:10.1002/eji.1830180905

    authors: Gorai I,Aihara M,Bixler GS Jr,Atassi MZ,Walden P,Klein J

    更新日期:1988-09-01 00:00:00

  • The biology of myeloid-derived suppressor cells: the blessing and the curse of morphological and functional heterogeneity.

    abstract::Myeloid-derived suppressor cells (MDSC) play an important role in the cellular network regulating immune responses in cancer, chronic infectious diseases, autoimmunity, and in other pathological conditions. Morphological, phenotypic and functional heterogeneity is a hallmark of MDSC. This heterogeneity demonstrates th...

    journal_title:European journal of immunology

    pub_type: 杂志文章,评审

    doi:10.1002/eji.201040895

    authors: Youn JI,Gabrilovich DI

    更新日期:2010-11-01 00:00:00

  • Heterogeneity in the molecular defect leading to the leukocyte adhesion deficiency.

    abstract::Leukocyte adhesion deficiency (LAD) is a recessive autosomal disease characterized by life-threatening recurrent bacterial infections, by defective functions of leukocytes and by deficient membrane expression of leukocyte adhesion glycoproteins. These proteins, LFA-1, Mac-1 and p150,95, are alpha 1/beta 1 heterodimers...

    journal_title:European journal of immunology

    pub_type: 杂志文章

    doi:10.1002/eji.1830181016

    authors: Dimanche-Boitrel MT,Guyot A,De Saint-Basile G,Fischer A,Griscelli C,Lisowska-Grospierre B

    更新日期:1988-10-01 00:00:00

  • Diversity of immunoglobulin kappa light chain gene rearrangements and evidence for somatic mutation in V kappa IV family gene segments in X-linked agammaglobulinemia.

    abstract::X-linked agammaglobulinemia (XLA) is a humoral immunodeficiency disease in man, characterized by an arrest in B lymphocyte differentiation at the precursor B cell stage. The structure of expressed immunoglobulin (Ig) kappa light (L) chain rearrangements of nine B lymphoblastoid cell lines from one XLA patient was inve...

    journal_title:European journal of immunology

    pub_type: 杂志文章

    doi:10.1002/eji.1830230306

    authors: Timmers E,Hermans MM,Kraakman ME,Hendriks RW,Schuurman RK

    更新日期:1993-03-01 00:00:00

  • Interferons as macrophage-activating factors. II. Enhanced secretion of interleukin 1 by lipopolysaccharide-stimulated human monocytes.

    abstract::Human adherent monocytes were incubated with interferon (IFN) preparations, then washed and stimulated with endotoxins. The interleukin (IL1) activity in the supernatants of IFN-treated monocyte cultures was found to be increased as compared to control (not pretreated) cultures. This phenomenon was observed whether al...

    journal_title:European journal of immunology

    pub_type: 杂志文章

    doi:10.1002/eji.1830130602

    authors: Arenzana-Seisdedos F,Virelizier JL

    更新日期:1983-06-01 00:00:00

  • Hyperosmotic stimuli inhibit VCAM-1 expression in cultured endothelial cells via effects on interferon regulatory factor-1 expression and activity.

    abstract::Transcriptional up-regulation of the VCAM-1 gene, induced by proinflammatory cytokines such as IL-1beta and TNF-alpha, requires activation of not only NF-kappaB, but also involves interferon regulatory factor (IRF)-1. During a study of gene induction by mechanical stimuli in cultured human endothelial cells, we noted ...

    journal_title:European journal of immunology

    pub_type: 杂志文章

    doi:10.1002/1521-4141(200207)32:7<1821::AID-IMMU1821>3

    authors: Ochi H,Masuda J,Gimbrone MA

    更新日期:2002-07-01 00:00:00

  • Inhibition of clonal expansion by Foxp3 expression as a mechanism of controlled T-cell responses and autoimmune disease.

    abstract::The essential role of the transcription factor Foxp3 in the development and function of Treg has been well documented. The role of Foxp3 in non-Treg, however, is not fully understood. Emerging evidence indicates that Foxp3 expression is not confined to CD4+CD25+ Treg. The present study shows that in Foxp3 transgenic (...

    journal_title:European journal of immunology

    pub_type: 杂志文章

    doi:10.1002/eji.200939404

    authors: Guo L,Tian J,Marinova E,Zheng B,Han S

    更新日期:2010-01-01 00:00:00

  • Loss of interleukin 2 dependence in cloned interleukin 2-dependent rat T lymphocyte x BW5147 hybridomas is not associated with segregation of a specific pair of rat chromosomes.

    abstract::A fusion between the mouse AKR thymoma BW5147 and a culture of homogeneously OX8+ (CD8) rat T lymphoblasts yield interleukin (IL) 2-dependent T cell hybridomas when selected in HAT medium supplemented with IL 2-containing supernatants of concanvalin A-activated cells and dexamethasone. IL 2-independent variants can be...

    journal_title:European journal of immunology

    pub_type: 杂志文章

    doi:10.1002/eji.1830190704

    authors: Somoza C,Fernández-Ruiz E,Jotterand-Bellomo M,Sanz E,Nabholz M,Silva A

    更新日期:1989-07-01 00:00:00

  • A T cell activation antigen, Ly6C, induced on CD4+ Th1 cells mediates an inhibitory signal for secretion of IL-2 and proliferation in peripheral immune responses.

    abstract::A T cell activation antigen, Ly6C, is considered to be involved in the autoimmunity of some autoimmune-prone mice; however, the function of Ly6C remains largely unknown. We prepared a rat anti-mouse Ly6C monoclonal antibody (mAb) (S14) that inhibits the proliferation of peripheral T cells stimulated with anti-CD3 mAb ...

    journal_title:European journal of immunology

    pub_type: 杂志文章

    doi:10.1002/(SICI)1521-4141(199802)28:02<696::AID-IMMU

    authors: Yamanouchi S,Kuwahara K,Sakata A,Ezaki T,Matsuoka S,Miyazaki J,Hirose S,Tamura T,Nariuchi H,Sakaguchi N

    更新日期:1998-02-01 00:00:00

  • T-cell receptor activation of human CD4(+) T cells shifts the innate TLR response from CXCL8(hi) IFN-γ(null) to CXCL8(lo) IFN-γ(hi).

    abstract::Toll-like receptors (TLRs) play a major part in providing innate immunity against pathogenic microorganisms. Recent studies show that these receptors are also expressed on T cells, which are the sentinels of adaptive immunity. Here, we have investigated the regulatory role of the T-cell receptor in the functioning of ...

    journal_title:European journal of immunology

    pub_type: 杂志文章

    doi:10.1002/eji.201545553

    authors: Akhade AS,Qadri A

    更新日期:2015-09-01 00:00:00

  • Disruption of de novo fatty acid synthesis via acetyl-CoA carboxylase 1 inhibition prevents acute graft-versus-host disease.

    abstract::Upon antigen-specific or allogeneic activation, T cells sharply increase their metabolic activity to cope with augmented needs for proliferation and effector functions. Therefore, enzymes involved in energy metabolism constitute attractive targets to modulate the activity of pathogenic effector T cells in the setting ...

    journal_title:European journal of immunology

    pub_type: 杂志文章

    doi:10.1002/eji.201546152

    authors: Raha S,Raud B,Oberdörfer L,Castro CN,Schreder A,Freitag J,Longerich T,Lochner M,Sparwasser T,Berod L,Koenecke C,Prinz I

    更新日期:2016-09-01 00:00:00

  • Different affinity windows for virus and cancer-specific T-cell receptors: implications for therapeutic strategies.

    abstract::T-cell destiny during thymic selection depends on the affinity of the TCR for autologous peptide ligands presented in the context of MHC molecules. This is a delicately balanced process; robust binding leads to negative selection, yet some affinity for the antigen complex is required for positive selection. All TCRs o...

    journal_title:European journal of immunology

    pub_type: 杂志文章

    doi:10.1002/eji.201242606

    authors: Aleksic M,Liddy N,Molloy PE,Pumphrey N,Vuidepot A,Chang KM,Jakobsen BK

    更新日期:2012-12-01 00:00:00

  • T cell factor (interleukin 2) allows in vivo induction of T helper cells against heterologous erythrocytes in athymic (nu/nu) mice.

    abstract::Mice carrying the nude mutation (nu/nu) lack a functioning thymus and do not contain detectable levels of immunocompetent T cells. We now report that nu/nu mice to have lymphocytes which can be activated in vivo by heterologous erythrocytes and a Lyt-1 T cell-derived factor (interleukin 2) to generate T helper cells. ...

    journal_title:European journal of immunology

    pub_type: 杂志文章

    doi:10.1002/eji.1830100912

    authors: Stötter H,Rüde E,Wagner H

    更新日期:1980-09-01 00:00:00

  • Lck tyrosine kinase is important for activation of the CD11a/CD18-integrins in human T lymphocytes.

    abstract::CD11a/CD18 (beta2)-integrins are expressed on leukocytes and are involved in cell adhesion and signaling. Despite extensive studies the signaling pathways and molecular mechanisms involved in integrin regulation in T cells remain not completely understood. We have now studied the involvement of the tyrosine kinase Lck...

    journal_title:European journal of immunology

    pub_type: 杂志文章

    doi:10.1002/1521-4141(200206)32:6<1670::AID-IMMU1670>3

    authors: Fagerholm S,Hilden TJ,Gahmberg CG

    更新日期:2002-06-01 00:00:00

  • IFN-beta modulates the response to TLR stimulation in human DC: involvement of IFN regulatory factor-1 (IRF-1) in IL-27 gene expression.

    abstract::Type I IFN are cytokines which play a central role in host resistance to viral or microbial infections and are important components linking innate and adaptive immunity. We and others have previously demonstrated that the production of IFN-beta by DC following bacterial infections or TLR triggering influences, in an a...

    journal_title:European journal of immunology

    pub_type: 杂志文章

    doi:10.1002/eji.200737566

    authors: Remoli ME,Gafa V,Giacomini E,Severa M,Lande R,Coccia EM

    更新日期:2007-12-01 00:00:00

  • Immunity to transplantable carcinogen-induced fibrosarcomas in B2/B2 chickens. III. Tumor growth inhibition by local delayed hypersensitivity reactions to unrelated antigens.

    abstract::Delayed hypersensitivity (DH) reaction to human Ig, corynebacterium parvum or allogeneic cells at the site of tumor cell injection, suppressed the fibrosarcoma (SCFS) growth in chickens. Spleen cells of SC chickens sensitized to human Ig or C. parvum suppressed SCFS growth when adoptively transferred with tumor cells,...

    journal_title:European journal of immunology

    pub_type: 杂志文章

    doi:10.1002/eji.1830080408

    authors: Palladino MA,Thorbecke GJ

    更新日期:1978-04-01 00:00:00

  • Clonal expansions of V delta 1+ and V delta 2+ cells increase with age and limit the repertoire of human gamma delta T cells.

    abstract::We have investigated the complexity of the human gamma delta T cell repertoire by means of a VJ heteroduplex analysis method. cDNA obtained from peripheral blood mononuclear cells was amplified with V delta 1-C delta or V delta 2-C delta primers. The product was denatured and renatured to allow random reannealing of t...

    journal_title:European journal of immunology

    pub_type: 杂志文章

    doi:10.1002/eji.1830240830

    authors: Giachino C,Granziero L,Modena V,Maiocco V,Lomater C,Fantini F,Lanzavecchia A,Migone N

    更新日期:1994-08-01 00:00:00

  • Glucocorticoids inhibit human antigen-specific and enhance total IgE and IgG4 production due to differential effects on T and B cells in vitro.

    abstract::Although anti-inflammatory properties of glucocorticoids (GC) are well documented, their activity in allergic diseases is still controversial. Recently, it has been reported that GC can increase, both in vivo and in vitro, the polyclonal production of total IgE. In this study we investigated the effects of GC on the a...

    journal_title:European journal of immunology

    pub_type: 杂志文章

    doi:10.1002/eji.1830270933

    authors: Akdis CA,Blesken T,Akdis M,Alkan SS,Heusser CH,Blaser K

    更新日期:1997-09-01 00:00:00