Mucosal-Associated Invariant T Cells Are Depleted and Exhibit Altered Chemokine Receptor Expression and Elevated Granulocyte Macrophage-Colony Stimulating Factor Production During End-Stage Renal Disease

Abstract Macrophage colony stimulating factor (CSF-1) is one of several cytokines that control the differentiation, survival, and proliferation of monocytes and macrophages. A set of 11 human T-cell clones, chosen for their phenotypic diversity, were tested for their ability to express CSF-1 mRNA. After 5 hours of stimulation with phorbol myristate acetate (PMA) + calcium ionophore (Cal), all T-cell clones expressed a major 4-kb transcript, a less abundant 2-kb transcript, and several other minor species. This pattern of expression is typical for CSF-1 mRNAs. Furthermore, of the two alloreactive T-cell clones analyzed, only one showed a definitive message for CSF-1 on specific antigenic stimulation, but with delayed kinetics and less efficiency. Both conditions of stimulation induced the release of CSF-1 protein by T cells in the culture medium. Together, these findings demonstrate for the first time that normal T cells are able to produce CSF-1, previous reports being limited to two cases of tumoral cells of the T-cell lineage.

Download Full-text

Paradoxical role of alveolar macrophage-derived granulocyte-macrophage colony-stimulating factor in pulmonary host defense post-bone marrow transplantation

AJP Lung Cellular and Molecular Physiology ◽

10.1152/ajplung.00309.2007 ◽

2008 ◽

Vol 295 (1) ◽

pp. L114-L122 ◽

Cited By ~ 15

Author(s):

Megan N. Ballinger ◽

Leah L. N. Hubbard ◽

Tracy R. McMillan ◽

Galen B. Toews ◽

Marc Peters-Golden ◽

...

Keyword(s):

Bone Marrow ◽

Host Defense ◽

Receptor Expression ◽

Colony Stimulating Factor ◽

Wild Type ◽

Bacterial Killing ◽

Gm Csf ◽

Macrophage Colony Stimulating Factor ◽

Macrophage Colony ◽

Stimulating Factor

Impaired host defense post-bone marrow transplant (BMT) is related to overproduction of prostaglandin E2(PGE2) by alveolar macrophages (AMs). We show AMs post-BMT overproduce granulocyte-macrophage colony-stimulating factor (GM-CSF), whereas GM-CSF in lung homogenates is impaired both at baseline and in response to infection post-BMT. Homeostatic regulation of GM-CSF may occur by hematopoietic/structural cell cross talk. To determine whether AM overproduction of GM-CSF influenced immunosuppression post-BMT, we compared mice that received BMT from wild-type donors (control BMT) or mice that received BMT from GM-CSF−/− donors (GM-CSF−/− BMT) with untransplanted mice. GM-CSF−/− BMT mice were less susceptible to pneumonia with Pseudomonas aeruginosa compared with control BMT mice and showed antibacterial responses equal to or better than untransplanted mice. GM-CSF−/− BMT AMs displayed normal phagocytosis and a trend toward enhanced bacterial killing. Surprisingly, AMs from GM-CSF−/− BMT mice overproduced PGE2, but expression of the inhibitory EP2receptor was diminished. As a consequence of decreased EP2receptor expression, we found diminished accumulation of cAMP in response to PGE2stimulation in GM-CSF−/− BMT AMs compared with control BMT AMs. In addition, GM-CSF−/− BMT AMs retained cysteinyl leukotriene production and normal TNF-α response compared with AMs from control BMT mice. GM-CSF−/− BMT neutrophils also showed improved bacterial killing. Although genetic ablation of GM-CSF in hematopoietic cells post-BMT improved host defense, transplantation of wild-type bone marrow into GM-CSF−/− recipients demonstrated that parenchymal cell-derived GM-CSF is necessary for effective innate immune responses post-BMT. These results highlight the complex regulation of GM-CSF and innate immunity post-BMT.

Download Full-text

NF-kappa B as inducible transcriptional activator of the granulocyte-macrophage colony-stimulating factor gene.

Molecular and Cellular Biology ◽

10.1128/mcb.10.3.1281 ◽

1990 ◽

Vol 10 (3) ◽

pp. 1281-1286 ◽

Cited By ~ 131

Author(s):

R Schreck ◽

P A Baeuerle

Keyword(s):

T Cells ◽

Transcription Factor ◽

T Cell ◽

Interleukin 2 ◽

Colony Stimulating Factor ◽

Nf Kappa B ◽

Gm Csf ◽

Macrophage Colony Stimulating Factor ◽

Macrophage Colony ◽

Stimulating Factor

The expression of the gene encoding the granulocyte-macrophage colony-stimulating factor (GM-CSF) is induced upon activation of T cells with phytohemagglutinin and active phorbolester and upon expression of tax1, a transactivating protein of the human T-cell leukemia virus type I. The same agents induce transcription from the interleukin-2 receptor alpha-chain and interleukin-2 genes, depending on promoter elements that bind the inducible transcription factor NF-kappa B (or an NF-kappa B-like factor). We therefore tested the possibility that the GM-CSF gene is also regulated by a cognate motif for the NF-kappa B transcription factor. A recent functional analysis by Miyatake et al. (S. Miyatake, M. Seiki, M. Yoshida, and K. Arai, Mol. Cell. Biol. 8:5581-5587, 1988) described a short promoter region in the GM-CSF gene that conferred strong inducibility by T-cell-activating signals and tax1, but no NF-kappa B-binding motifs were identified. Using electrophoretic mobility shift assays, we showed binding of purified human NF-kappa B and of the NF-kappa B activated in Jurkat T cells to an oligonucleotide comprising the GM-CSF promoter element responsible for mediating responsiveness to T-cell-activating signals and tax1. As shown by a methylation interference analysis and oligonucleotide competition experiments, purified NF-kappa B binds at positions -82 to -91 (GGGAACTACC) of the GM-CSF promoter sequence with an affinity similar to that with which it binds to the biologically functional kappa B motif in the beta interferon promoter (GGGAAATTCC). Two kappa B-like motifs at positions -98 to -108 of the GM-CSF promoter were also recognized but with much lower affinities. Our data provide strong evidence that the expression of the GM-CSF gene following T-cell activation is controlled by binding of the NF-kappa B transcription factor to a high-affinity binding site in the GM-CSF promoter.

Download Full-text

Expression of the macrophage-specific colony-stimulating factor in human monocytes treated with granulocyte-macrophage colony-stimulating factor

Blood ◽

10.1182/blood.v69.4.1259.bloodjournal6941259 ◽

1987 ◽

Vol 69 (4) ◽

pp. 1259-1261

Author(s):

J Horiguchi ◽

MK Warren ◽

D Kufe

Keyword(s):

T Cells ◽

Gene Product ◽

Phorbol Ester ◽

Human Monocytes ◽

Colony Stimulating Factor ◽

Gm Csf ◽

Macrophage Colony Stimulating Factor ◽

Activated Monocytes ◽

Macrophage Colony ◽

Stimulating Factor

The macrophage-specific colony-stimulating factor (CSF-1, M-CSF) regulates the survival, growth and differentiation of monocytes. We have recently demonstrated that phorbol ester induces expression of CSF- 1 in human monocytes. These findings suggested that activated monocytes are capable of producing their own lineage-specific CSF. The present studies demonstrate that the granulocyte-macrophage colony-stimulating factor (GM-CSF) also induces CSF-1 transcripts in monocytes. Furthermore, we demonstrate that the detection of CSF-1 RNA in GM-CSF- treated monocytes is associated with synthesis of the CSF-1 gene product. The results thus suggest that GM-CSF may indirectly control specific monocyte functions through the regulation of CSF-1 production. These findings indicate another level of interaction between T cells and monocytes.

Download Full-text

Differentiation of human dendritic cells from monocytes in vitro using granulocyte-macrophage colony stimulating factor and low concentration of interleukin-4

Vojnosanitetski pregled ◽

10.2298/vsp0305531c ◽

2003 ◽

Vol 60 (5) ◽

pp. 531-538 ◽

Cited By ~ 11

Author(s):

Miodrag Colic ◽

Dusan Jandric ◽

Zorica Stojic-Vukanic ◽

Jelena Antic-Stankovic ◽

Petar Popovic ◽

...

Keyword(s):

T Cells ◽

Interleukin 4 ◽

Adherent Cells ◽

Colony Stimulating Factor ◽

Gm Csf ◽

Alloreactive T Cells ◽

Macrophage Colony Stimulating Factor ◽

Macrophage Colony ◽

Human Dendritic Cells ◽

Stimulating Factor

Several laboratories have developed culture systems that allow the generation of large numbers of human dendritic cells (DC) from monocytes using granulocyte-macrophage colony stimulating factor (GM-CSF), and interleukin-4 (IL-4). In this work we provided evidence that GM-CSF (100 ng/ml) in combination with a low concentration of IL-4 (5 ng/ml) was efficient in the generation of immature, non-adherent, monocyte-derived DC as the same concentration of GM-CSF, and ten times higher concentration of IL-4 (50 ng/ml). This conclusion was based on the similar phenotype profile of DC such as the expression of CD1a, CD80, CD86, and HLA-DR, down-regulation of CD14, and the absence of CD83, as well as on their similar allostimulatory activity for T cells. A higher number of cells remained adherent in cultures with lower concentrations of IL-4 than in cultures with higher concentrations of the cytokine. However, most of these adherent cells down-regulated CD14 and stimulated the proliferation of alloreactive T cells. In contrast adherent cells cultivated with GM-CSF alone were predominantly macrophages as judged by the expression of CD14 and the inefficiency to stimulate alloreactive T cells. DC generated in the presence of lower concentrations of IL-4 had higher proapoptotic potential for the Jurkat cell line than DC differentiated with higher concentrations of IL-4, suggesting their stronger cytotoxic, anti-tumor effect.

Download Full-text

Receptor expression and oxidase activity in human neutrophils: Regulation by granulocyte-macrophage colony-stimulating factor and dependence upon protein biosynthesis

Bioscience Reports ◽

10.1007/bf01117239 ◽

1990 ◽

Vol 10 (4) ◽

pp. 393-401 ◽

Cited By ~ 17

Author(s):

Steven W. Edwards ◽

Fiona Watson ◽

Ronald MacLeod ◽

John Davies

Keyword(s):

De Novo ◽

Protein Biosynthesis ◽

Neutrophil Function ◽

Membrane Receptors ◽

Receptor Expression ◽

Human Neutrophils ◽

Colony Stimulating Factor ◽

Macrophage Colony Stimulating Factor ◽

Macrophage Colony ◽

Stimulating Factor

Incubation of human bloodstream neutrophils with 50 u/ml recombinant granulocyte-macrophage colony-stimulating factor (rGM-CSF) “primed” the respiratory burst (as assessed by fMet-Leu-Phe stimulated luminol-dependent chemiluminescence) and resulted in a rapid (within 15 min) upregulation of expression of CD11b and CD18 (as measured by FACS analysis). This rapid “priming” and modulation of receptor expression was not inhibited by cycloheximide and hence appeared to be independent of de novo protein biosynthesis. When neutrophils were incubated for up to 5 h in culture, the fluorescence distributions of CD11b and CD18 declined indicating the loss of expression of these receptors as the neutrophils aged, but in rGM-CSF treated suspensions receptor expression was maintained. When neutrophils were incubated in the presence of cycloheximide, they progressively lost their ability to generate reactive oxidants in response to fMet-Leu-Phe so that by 5 h incubation with this inhibitor they could only generate about 25% of the oxidative response stimulated in untreated cells, and the expression of CD16 and CD18 was grossly impaired. Similar effects were observed in rGM-CSF treated suspensions except that cycloheximide required longer incubation times (typically 4–5 h) before impairment of function or receptor expression occurred. These data show that de novo protein biosynthesis is required for both the maintenance of neutrophil function and also for the continued expression of some plasma membrane receptors.

Download Full-text