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Gene Pair Information

Gene Pair: CD4, IFNG

Related Sentences

# PMID Sentence
1 1343880 From 14 days after vaccination, BAL cultures contained infiltrating lymphocytes which produced abundant quantities of IFN-g and IL-3.
2 1343880 Challenge of vaccinated mice resulted in a second influx of IFN-g and IL-3--producing cells, earlier than after vaccination or in the appropriate controls.
3 1343880 Ablation studies revealed that CD4+ T cells were the source of IFN-g.
4 1371640 CD4/CD8 ratio and percentage CD4 were normal in peripheral blood.
5 1371640 Analysis of the pleural effusion revealed an increased CD4/CD8 ratio because of an increased percentage of CD4+CD29+ helper memory T cells, lack of expression of the resting B-cell marker CD21, immune complex deposition and complement consumption, increased relative levels of ANA, abnormally high levels of IL-6 and soluble IL-2R, and detectable levels of IL-1b, IFN-g and TNF-a.
6 1399092 Serial measurements were made during each treatment of interleukin-1 beta (II-1 beta), TNF, soluble IL-2 receptor (sII-2r), soluble CD4 (sCD4), soluble CD8 (sCD8), interferon gamma (IFNg) and neopterin.
7 1399092 In contrast to the known increase of IL-1 beta, IL-2r and TNF with cuprophane membranes, none of the modern high-flux dialyzers stimulated the production of these factors.
8 7663570 Lymph nodes containing microscopic tumor and shed mucin exhibited approximately 40-fold expansion in short-term (< 21 days) cultures with either IL-2 or IL-1 plus IL-2; the combination of IL-2/anti-CD3 monoclonal antibody (mAb) resulted in significantly higher expansion.
9 7663570 Cultures generated with IL-2 alone favored the expansion of CD8+ and CD56+ cells, whereas addition of IL-1 or anti-CD3 mAb to IL-2 promoted outgrowth of CD4+ T-cells.
10 7663570 However, CD4+ cells expanded in IL-2/anti-CD3 retained the ability to proliferate in response to TAG-72 mucin-expressing autologous tumor as well as bovine submaxillary mucin (BSM) a soluble TAG-72+ mucin.
11 7663570 In addition, CD4+ cells expressed mRNA for IL-2, IL-4, tumor necrosis factor-beta and IFNg, and retained the ability to secrete IL-2 after expansion.
12 8972688 Comparison of granulocyte colony-stimulating factor, granulocyte-macrophage colony-stimulating factor and interferon-gamma.
13 8972688 Oxidative burst response upon stimulation with N-formyl-methionyl-leucyl-phenylalanine was assessed in neutrophils after priming with granulocyte colony-stimulating factor (G-CSF), granulocyte-macrophage colony-stimulating factor (GM-CSF) and interferon-gamma (IFN-g), and in monocytes after priming with GM-CSF and IFN-g.
14 8972688 In contrast, following priming with IFN-g, GM-CSF or medium (but not G-CSF) the neutrophils in HIV patients with CD4 counts > 200 x 10(9)/L exhibited a significantly higher chemiluminescence response than was seen in healthy age-matched controls, whereas the response in patients with lower CD4 counts was not different from controls.
15 8972688 At comparable concentrations, GM-CSF induced a significantly higher priming than G-CSF and IFN-g.
16 8972688 A significant positive correlation between CD4 counts and priming activity of GM-CSF and IFN-g on neutrophils was observed.
17 9656442 Influence of IL-12 on interferon-gamma production by bovine leucocyte subsets in response to bovine respiratory syncytial virus.
18 9656442 The cytokine IL-12 is a key molecule in the regulation of CD4+ T cell development and specifically potentiates the development of T helper 1 responses in mouse and man.
19 9656442 Here the 2A was flanked by sequences encoding the p35 and p40 polypeptides of the heterodimeric cytokine to mediate their cleavage.
20 9656442 The presence of IL-12 markedly influenced the level of IFNg secreted by these cells, and although IL-12 induced IFNg production in the absence of antigenic stimulation, IFNg production was accelerated and augmented in response to IL-12 and antigen.
21 9656442 Analysis of the T cell subsets by flow cytometry showed that CD4+ T cells comprised the largest contributors to IFNg production.
22 11217546 This phase corresponds to early release of so-called inflammatory cytokines (IL1, IL6, IL8).
23 11217546 The second phase consists of recognition of bacterial antigens by helper CD4 lymphocytes, which mainly release IL2 and IFNg (Th1 response).
24 12719555 Interestingly, Tmevpg1 is down regulated after in vitro stimulation of murine CD4(+) or CD8(+) splenocytes, whereas Ifng is up regulated.
25 12719555 Similar patterns of expression of TMEVPG1 and IFNG were observed in human NK cells and CD4(+) and CD8(+) T lymphocytes.
26 12854077 A tumor necrosis factor-alpha-inducible promoter variant of interferon-gamma accelerates CD4+ T cell depletion in human immunodeficiency virus-1-infected individuals.
27 12854077 A polymorphism, -179G/T, in the promoter of the interferon (IFN)-gamma gene (IFNG) confers differential tumor necrosis factor-alpha (TNF-alpha) inducibility to the IFNG promoter.
28 12854077 In 298 African American human immunodeficiency virus (HIV)-1 seroconverters, the IFNG -179G/T genotype was associated with accelerated progression to CD4 <200 and AIDS-1993, a finding suggesting that IFNG -179T is a risk factor for AIDS progression, as measured by CD4 cell count.
29 12854077 It is possible that increased IFN-gamma production induced by TNF-alpha when -179T is present causes CD4 cell depletion by apoptosis.
30 14691261 Here, we analyze chromatin conformation of the 24-kb region of the Ifng gene during CD4(+) T helper (Th) cell differentiation.
31 15304658 When linked to the murine Ifng gene (-3.4 to +5.6 kb) and transiently transfected into EL-4 cells, these elements clearly enhanced IFN-gamma expression in response to ionomycin and phorbol 12-myristate 13-acetate and weakly enhanced expression in response to T-bet.
32 15304658 A DNase I hypersensitive site and extragenic transcripts at IFNgCNS2 correlated positively with the capacity of primary T cell subsets to produce IFN-gamma.
33 15304658 Transcriptionally favorable histone modifications in the Ifng promoter, intronic regions, IFNgCNS2, and, although less pronounced, IFNgCNS1 increased as naïve T cells differentiated into IFN-gamma-producing effector CD8+ and T helper (TH) 1 T cells, but not into TH2 T cells.
34 15304658 Like IFN-gamma expression, these histone modifications were T-bet-dependent in CD4+ cells, but not CD8+ T cells.
35 15597669 The cytokine response detected in ABPA patients is of a CD4+ Th2 type as evidenced by the production of IL-4, IL-5, and very little or no IFN-g on stimulation of T-lymphocytes with Aspergillus antigens.
36 15659263 The role of distinct CD4+ T-cell populations in regulating the nature and strength of immune responses is well documented, and has in the past principally focused on the mutual antagonism between Th1 and Th2 cells, which secrete interferon (IFN)-gamma and interleukin (IL)-4, respectively.
37 15659263 However, the recent identification of T cells that secrete high levels of IL-10 and/or transforming growth factor-b, but not IFN-g or IL-4, called regulatory T (Tr) cells has prompted a paradigm shift in our understanding of the regulation of immune responses following infection.
38 16563877 CD8+ CTL (cytotoxic T-lymphocyte)-derived IFN-g may be especially important both for cells lacking MHC class II molecules, e.g. in the lung and for macrophages where mycobacteria can evade recognition during chronic infection by sequestering their antigens away from sensitized CD4+ T cells.
39 17093503 Here, we analyzed nuclear matrix attachment regions (MARs) in the Ifng gene by DNA array technique in unactivated and activated CD4+ Th cells.
40 17093503 The data suggest that such structural dynamics provide the means for transcriptional regulation of the Ifng gene in the course of activation and differentiation of CD4+Th cells.
41 17583733 Recruitment of the RNA polymerase II transcription complex to the promoter of the Ifng gene has been studied by chromatin immunoprecipitation (ChIP) in activated functionally different CD4+ T helper (Th) cell subsets.
42 17981204 This cytokine is produced predominantly by natural killer (NK) and natural killer T (NKT) cells as part of the innate immune response, and by Th1 CD4 and CD8 cytotoxic T lymphocyte (CTL) effector T cells once antigen-specific immunity develops.
43 17981204 The epigenetic modifications and three-dimensional structure of the Ifng locus in naive CD4 T cells, and the modifications they undergo as these cells differentiate into effector T cells, suggest a model whereby the chromatin architecture of Ifng is poised to facilitate either rapid opening or silencing during Th1 or Th2 differentiation, respectively.
44 18406471 Therefore, our data do not confirm a role for CD4 T-lymphocytes in protection, since there is no correlation between IFN-g secretion (supposed to be mainly derived from CD4 T-cells) and disease severity.
45 18406471 Additionally, we applied immunocytochemistry on affected lung tissue and detected no build up of T-lymphocytes (CD4 T-cells, CD8 T-cells) but a high presence of myeloid cells.
46 18549798 Janus-kinase-3-dependent signals induce chromatin remodeling at the Ifng locus during T helper 1 cell differentiation.
47 18549798 Differentiation of naive CD4+ T cells into T helper type 1 (Th1) effector cells requires both T cell receptor (TCR) signaling and cytokines such as interleukin-12 and interferon gamma (IFN-gamma).
48 18549798 Here, we report that a third cytokine signal, mediated by the Janus family tyrosine kinase 3 (Jak3) and signal transducer and activator of transcription 5 (STAT5) pathway, is also required for Th1 cell differentiation.
49 18549798 In the absence of Jak3-dependent signals, naive CD4+ T cells proliferate robustly but produce little IFN-gamma after Th1 cell polarization in vitro.
50 18549798 This defect is not due to reduced activation of STAT1 or STAT4 or to impaired upregulation of the transcription factor T-bet.
51 18549798 Instead, we find that T-bet binding to the Ifng promoter is greatly diminished in the absence of Jak3-dependent signals, correlating with a decrease in Ifng promoter accessibility and histone acetylation.
52 18549798 These data indicate that Jak3 regulates epigenetic modification and chromatin remodeling of the Ifng locus during Th1 cell differentiation.
53 18684979 Surprisingly, human naive CD4(+) T lymphocytes displayed hypermethylation at the IFNG promoter region, which is in sharp contrast to the completely demethylated status of this region in mice.
54 18684979 Furthermore, CD19(+) B lymphocytes displayed hypomethylation at the IFNG promoter region with a similar pattern to Th1 effector cells.
55 18684979 We conclude that there are obvious interspecies differences in the methylation status of the IFNG gene in naive CD4(+) T lymphocytes, where Th1 commitment in human lymphocytes involves demethylation before IFNG expression.
56 19234226 End-organ damage in a mouse model of fulminant liver inflammation requires CD4+ T cell production of IFN-gamma but is independent of Fas.
57 19234226 The BALB/c-Tgfb1(-/-) mouse exhibits extensive, spontaneously developing necroinflammation in the liver, accompanied by the accumulation of IFN-gamma-producing CD4(+) and CD8(+) T cells.
58 19234226 In Tgfb1(-/-) liver, CD4(+) T cells were more numerous than CD8(+) T cells and NK cells, and produced more IFN-gamma.
59 19234226 Depletion of CD4(+) T cells eliminated both the elevation in plasma IFN-gamma and aspartate aminotransferase, whereas depletion of CD8(+) T cells did not.
60 19234226 Rag1(-/-)Tgfb1(-/-) mice exhibited neither IFN-gamma elevation nor tissue damage, indicating that NK cells are not sufficient.
61 19234226 IFN-gamma was required for strong overexpression of class II genes but not for CD4(+) T cell activation, oligoclonal expansion, or accumulation in the liver.
62 19234226 Finally, whereas Tgfb1(-/-) CD4(+) T cells overexpressed Fas ligand, hepatocellular damage was observed in Fas(lpr/lpr)Tgfb1(-/-) mice, indicating that liver pathology is Fas independent.
63 19234226 We conclude that liver damage in this model of fulminant autoimmune hepatitis is driven by CD4(+) T cell production of IFN-gamma, is independent of both CD8(+) T cells and the Fas ligand/Fas pathway, and is not explained by a lack of PD-L1 expression.
64 19384057 Recently, we reported a novel mechanism by which the T-box transcription factor T-bet interacts with JMJD3, an H3K27-demethylase, and Set7/9, an H3K4-methyltransferase (Genes Dev. 2008. 22: 2980-2993).
65 19384057 Therefore, studies examining the molecular mechanisms that account for the ability of T-bet to regulate Ifng and Cxcr3, prototypic CD4+ Th1 genes, have provided novel insight into essential regulatory events that occur at diverse developmental transitions.
66 19689734 A continuous T-bet expression is required to silence the interleukin-4-producing potential in T helper type 1 cells.
67 19689734 To develop into committed T helper type 1 (Th1) cells, naive CD4(+) T cells not only need to acquire the capacity to produce interferon-gamma (IFN-gamma), but they also need to gain the ability to silence their interleukin-4 (IL-4) -producing potential.
68 19689734 We found that a lack of IL-4 stimulation was not sufficient to silence the IL-4-producing potential in activated CD4(+) T cells and that Th1-promoting factor was required.
69 19689734 Although it has been shown that T-bet is a crucial factor in suppressing Il4 gene expression, it is unclear whether a continuous presence of T-bet is required to silence the Il4 gene in Th1 cells.
70 19689734 To address this problem, we used an inducible form of T-bet - a T-bet-oestrogen receptor fusion molecule (T-bet-ER).
71 19689734 We found that the activation of T-bet during primary or secondary culture was sufficient to silence IL-4-producing potential.
72 19689734 On the other hand, the inactivation of T-bet after naïve CD4(+) T cells had differentiated into Th1 cells resulted in derepression of Il4 gene transcription.
73 19689734 Additionally, we found that T-bet is required to maintain Ifng expression.
74 19689734 Our data demonstrate that the continuous expression of T-bet is required for Th1 cells to silence their IL-4-producing potential.
75 19747638 Interferon gamma 13-CA-repeat homozygous genotype and a low proportion of CD4(+) lymphocytes are independent risk factors for cytomegalovirus reactivation with a high number of copies in hematopoietic stem cell transplantation recipients.
76 19747638 Cytomegalovirus (CMV) reactivation was analyzed in 92 recipients of allogeneic hematopoietic stem cell transplantation (HSCT) in relation to the proportion of CD4(+) lymphocytes in blood and a microsatellite polymorphism within the first intron of the interferon-gamma (IFNG) gene.
77 19747638 Multivariate analysis demonstrated that the IFNG 13-CA-repeat homozygous genotype (odds ratio [OR] = 0.221; P = .044), a low proportion of CD4(+) lymphocytes (OR = 0.276; P = .050), and a lack of optimal (10/10 alleles) donor-recipient HLA match (OR = 15.19; P = .006) were independent risk factors for CMV reactivation with a high number of copies.
78 20304822 Activating transcription factor 3 is a positive regulator of human IFNG gene expression.
79 20304822 IL-12 and IL-18 are essential for Th1 differentiation, whereas the role of IFN-alpha in Th1 development is less understood.
80 20304822 In this microarray-based study, we searched for genes that are regulated by IFN-alpha, IL-12, or the combination of IL-12 plus IL-18 during the early differentiation of human umbilical cord blood CD4(+) Th cells.
81 20304822 Twenty-six genes were similarly regulated in response to treatment with IL-12, IFN-alpha, or the combination of IL-12 plus IL-18.
82 20304822 Ectopic expression of ATF3 in CD4(+) T cells enhanced the production of IFN-gamma, the hallmark cytokine of Th1 cells, whereas small interfering RNA knockdown of ATF3 reduced IFN-gamma production.
83 20304822 Furthermore, ATF3 formed an endogenous complex with JUN in CD4(+) T cells induced to Th1.
84 20304822 Chromatin immunoprecipitation and luciferase reporter assays showed that both ATF3 and JUN are recruited to and transactivate the IFNG promoter during early Th1 differentiation.
85 20399120 The transcription factor GATA3 actively represses RUNX3 protein-regulated production of interferon-gamma.
86 20399120 The transcription factor GATA3 is crucial for the differentiation of naive CD4(+) T cells into T helper 2 (Th2) cells.
87 20399120 Here, we show that deletion of Gata3 allowed the appearance of interferon-gamma (IFN-gamma)-producing cells in the absence of interleukin-12 (IL-12) and IFN-gamma.
88 20399120 Such IFN-gamma production was transcription factor T-bet independent.
89 20399120 Another T-box-containing transcription factor Eomes, but not T-bet, was induced both in GATA3-deficient CD4(+) T cells differentiated under Th2 cell conditions and in Th2 cells with enforced Runx3 expression, contributing to IFN-gamma production.
90 20399120 GATA3 overexpression blocked Runx3-mediated Eomes induction and IFN-gamma production, and GATA3 protein physically interacted with Runx3 protein.
91 20399120 Furthermore, we found that Runx3 directly bound to multiple regulatory elements of the Ifng gene and that blocking Runx3 function in either Th1 or GATA3-deficient "Th2" cells results in diminished IFN-gamma production by these cells.
92 20399120 Thus, the Runx3-mediated pathway, actively suppressed by GATA3, induces IFN-gamma production in a STAT4- and T-bet-independent manner.
93 20621581 Epinephrine-primed murine bone marrow-derived dendritic cells facilitate production of IL-17A and IL-4 but not IFN-γ by CD4+ T cells.
94 20621581 Epinephrine pre-treatment enhanced surface expression of MHCII, CD80 and CD86.
95 20621581 Epinephrine pre-treatment also induced a significant decrease of IL-12p70 and a significant increase of IL-23 and IL-10 cytokine production.
96 20621581 Importantly, these changes corresponded with increased IL-4 and IL-17A, but not IFN-g cytokine production by CD4(+) T cells in a b2-adrenergic receptor-dependent manner.
97 20709293 Fidelity of pathogen-specific CD4+ T cells to the Th1 lineage is controlled by exogenous cytokines, interferon-gamma expression, and pathogen lifestyle.
98 20963786 Changes in histone acetylation and methylation that are important for persistent but not transient expression of CCR4 in human CD4+ T cells.
99 20963786 Although regulation of CXCR3 and CCR4 is related to Th1 and Th2 differentiation, respectively, many CXCR3(+) and CCR4(+) cells do not express IFN-γ and/or IL-4, suggesting that the chemokine receptor genes might be inducible by mechanisms that are lineage-independent.
100 20963786 We investigated the regulation of CXCR3 versus IFNG, and CCR4 versus IL4 in human CD4(+) T cells by analyzing modifications of histone H3.
101 20963786 In naïve cord-blood cells, under nonpolarizing conditions not inducing IL4, CCR4 was induced to high levels without many of the activation-associated changes in promoter histone H3 found for both IL4 and CCR4 in Th2 cells.
102 20963786 Patterns of histone H3 modifications in CXCR3(+) CCR4(-) and CXCR3(-) CCR4(+) CD4(+) T-cell subsets from adult blood matched those in cells cultured under polarizing conditions in vitro.
103 21573182 There were no differences in early IFN-g and IL-10 expression between WT and IL-13-/- mice and depletion of CD4+ T cells did not affect infection in IL-13-/- mice.
104 21573182 Collectively, these data demonstrate a lack of CD4+ T cell involvement and a novel role for IL-13 in innate responses to infection.
105 21783593 Mice were treated with DNCB and TDI showed a preferential increase in the percentage of CD4+IL-2+ cells compared with vehicle and irritant-treated mice.
106 21783593 There was an increase in CD4+IFN-g+ cells of mice treated with DNCB and TDI, but no significant increases were observed in mice treated with SLS.
107 21783593 Mice were treated with DNCB and TDI showed an increase in the percentage of CD4+IL-4+ cells compared with vehicle and irritant-treated mice.
108 21783593 These results suggest that the population of interferon-gamma (IFN-g+) and IL-4+ cells on CD4+ cells and the mRNA expression for IL-4 in lymphocytes could be selectively modulated in allergen-treated mice.
109 22407948 Previous studies have shown that short-term (4 weeks) or chronic (32 weeks) exposure to trichloroethylene (TCE) in drinking water of female MRL+/+ mice generated CD4(+) T cells that secreted increased levels of interferon (IFN)-γ and expressed an activated (CD44(hi)CD62L(lo)) phenotype.
110 22407948 Also observed was an increase in the expression of Dnmt1 (DNA methyltransferase-1) and decreased expression of several genes known to be downregulated by DNA methylation, namely Ifng, Il2, and Cdkn1a.
111 22407948 CD4(+) T cells from a second study in which MRL+/+ mice were treated for 17 weeks with TCE showed a similar increase in Iap and decrease in Cdkn1a.
112 22578563 To test this hypothesis, mice deficient in genes regulating IFN-γ expression (Casp1, Nlrp3, Il12a, Il12b, Stat4) or function (Ifngr1, Irf1) were examined for mHgIA susceptibility.
113 22578563 Absence of either Ifngr1 or Irf1 resulted in a striking reduction of disease, while deficiency of genes promoting IFN-γ expression had modest to no effect.
114 22578563 Furthermore, both Irf1- and Ifng-deficiency only modestly reduced the expansion of CD44(hi) and CD44(hi)CD55(lo) CD4(+) T cells, indicating that they are not absolutely required for T cell activation.
115 22649557 Interestingly, the latter delay or protection from T1D is associated with the enhanced secretion of IL-10 rather than IFN-g by C24:0-treated CD4(+) T cells and the deviation of the islet-reactive diabetogenic T cell response.
116 22837486 CD4+ T cell-dependent IFN-γ production by CD8+ effector T cells in Mycobacterium tuberculosis infection.
117 22837486 Both CD4+ and CD8+ T cells contribute to immunity to tuberculosis, and both can produce the essential effector cytokine IFN-γ.
118 22837486 We found that CD4+ and CD8+ cells were predominantly responsible for production of this cytokine in vivo, and we observed a remarkable linear correlation between the fraction of CD4+ cells and the fraction of CD8+ cells producing IFN-γ in the lungs.
119 22837486 In the absence of CD4+ cells, a reduced fraction of CD8+ cells was actively producing IFN-γ in vivo, suggesting that CD4+ effector cells are continually required for optimal IFN-γ production by CD8+ effector cells.
120 22837486 Accordingly, when infected mice were treated i.v. with an MHC-II-restricted M. tuberculosis epitope peptide to stimulate CD4+ cells in vivo, we observed rapid activation of both CD4+ and CD8+ cells in the lungs.
121 22837486 Indirect activation of CD8+ cells was dependent on the presence of CD4+ cells but independent of IFN-g responsiveness of the CD8+ cells.
122 22837486 These data provide evidence that CD4+ cell deficiency impairs IFN-γ production by CD8+ effector cells and that ongoing cross-talk between distinct effector T cell types in the lungs may contribute to a protective immune response against M. tuberculosis.
123 22842304 Schistosoma mansoni schistosomula tegument (Smteg) immunization in absence of adjuvant induce IL-10 production by CD4+ cells and failed to protect mice against challenge infection.
124 22842304 Smteg mice immunization resulted in significant antibody production, increased percentage of CD4+IFN-g+ and CD4+IL-10+ cells in spleen and increased production of IFN-g and IL-10 by spleen cells, but failed to reduce parasite burden, female fecundity and morbidity.
125 23063468 Therefore, the DNA methylation status of the Ifng promoter in CD4(+) cells from neonatal foal was determined using a methylation-specific PCR (MSP), and its relevance to IFN-γ mRNA expression was estimated.
126 23255246 Loss of methylation at the IFNG promoter and CNS-1 is associated with the development of functional IFN-γ memory in human CD4(+) T lymphocytes.
127 24216234 Rosette pre-depletion of blood was also investigated for detecting CD4+ or CD8+ T-cell responses using the IFN-g ELISPOT assay.
128 24216234 Rosette pre-depletion of whole blood proved to be effective in detecting CD4+ or CD8+ T-cell responses similarly to flow cytometry.
129 24216234 Taken together, the following recommendations are suggested to optimize the CMV-ELISPOT for transplantation settings: (1) use PMA/iono as positive control; (2) whole virus particle should be used to avoid peptide-related false negative responses; (3) a rosette pre-depletion step may be useful to detect CD4+ or CD8+ T-cell responses.
130 24244422 Downregulation of IFNG in CD4(+) T cells in lung cancer through hypermethylation: a possible mechanism of tumor-induced immunosuppression.
131 24244422 Hypermethylation of the IFNG promoter in CD4(+) T cells and plasma IFNG was negatively correlated.
132 24244422 CD4(+) T cells from healthy individuals co-cultured with SPC-A1 cells generated lower levels of IFNG after activation, elevated expression of DNA methyltransferases (DNMTs), and exhibited hypermethylation of the IFNG promoter.
133 24244422 In conclusion, decreased IFNG expression of CD4(+) T cells co-cultured with lung cancer cell is associated with IFNG promoter hypermethylation.
134 24244422 Our study suggests that interaction between lung cancer cells and CD4(+) T cells induces DNMT expression and IFNG promoter hypermethylation in CD4(+) T cell, which may serve as an important mechanism of tumor-induced immunosuppression.
135 24266365 The present review focuses on a small subset of iTregs that produces IFNg, comprises only 0.04% of all CD4(+) T lymphocytes in the blood of healthy individuals, and increases strongly during an immune response.
136 24266365 IFNg(+) Tregs are induced by IFNg and IL12, making them sensors for inflammatory cytokines.
137 24313359 Peripheral and site-specific CD4(+) CD28(null) T cells from rheumatoid arthritis patients show distinct characteristics.
138 24313359 Proinflammatory CD4(+) CD28(null) T cells are frequently found in the circulation of patients with rheumatoid arthritis (RA), but are less common in the rheumatic joint.
139 24313359 In the present study, we sought to identify functional differences between CD4(+) CD28(null) T cells from blood and synovial fluid in comparison with conventional CD28-expressing CD4(+) T cells.
140 24313359 Forty-four patients with RA, displaying a distinct CD4(+) CD28(null) T cell population in blood, were recruited for this study; the methylation status of the IFNG locus was examined in isolated T cell subsets, and intracellular cytokine production (IFN-γ, TNF, IL-17) and chemokine receptor expression (CXCR3, CCR6 and CCR7) were assessed by flow cytometry on T cells from the two compartments.
141 24313359 Circulating CD4(+) CD28(null) T cells were significantly more hypomethylated in the CNS-1 region of the IFNG locus than conventional CD4(+) CD28(+) T cells and produced higher levels of both IFN-γ and TNF after TCR cross-linking.
142 24313359 CD4(+) CD28(null) T cells from the site of inflammation expressed significantly more CXCR3 and CCR6 compared to their counterparts in blood.
143 24313359 While IL-17A production could hardly be detected in CD4(+) CD28(null) cells from the blood, a significant production was observed in CD4(+) CD28(null) T cells from synovial fluid.
144 24313359 CD4(+) CD28(null) T cells were not only found to differ from conventional CD4(+) CD28(+) T cells in the circulation, but we could also demonstrate that synovial CD4(+) CD28(null) T cells showed additional effector functions (IL-17 coproduction) as compared to the same subset in peripheral blood, suggesting an active role for these cells in the perpetuation of inflammation in the subset of patients having a CD28(null) population.