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Emodin inhibits macrophage alernative activation [Control-IL4-Emodin]

ABSTRACT: In order to fully characterize emodin's effects on macrophage alternative activation, peritoneal macrophages were stimulated with IL4 with or without emodin and gene expression was analyzed using a whole genome microarray. Emodin significantly attenuated the IL4 induced changes in a large percentage of genes (60%) through inhibiting multiple signaling pathways. RT-qPCR was used to confirm the results in several genes associated with M2 macrophage activation including: Arg1, Chi3l3, and CD206.

ORGANISM(S): Mus musculus

PROVIDER: GSE73309 | GEO | 2016/01/02

SECONDARY ACCESSION(S): PRJNA296575

REPOSITORIES: GEO

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Emodin inhibits macrophage alernative activation [Control-IL4-Emodin]

Project description:In order to fully characterize emodin's effects on macrophage alternative activation, peritoneal macrophages were stimulated with IL4 with or without emodin and gene expression was analyzed using a whole genome microarray. Emodin significantly attenuated the IL4 induced changes in a large percentage of genes (60%) through inhibiting multiple signaling pathways. RT-qPCR was used to confirm the results in several genes associated with M2 macrophage activation including: Arg1, Chi3l3, and CD206. Three-condition, one-color experiment: Vehicle control, IL4 or IL4-Emodin treated periferal WBC PMN samples: 4 biological replicates each.

2016-07-04 | E-GEOD-73309 | biostudies-arrayexpress

Emodin inhibits macrophage classical activation [Control-LPS-IFNg-Emodin]

Project description:In order to fully characterize emodin's effects on macrophage activation, peritoneal macrophages were stimulated with LPS+IFNg with or without emodin and gene expression was analyzed using a whole genome microarray. Emodin significantly attenuated the IFNg/LPS induced changes in a large percentage of responsive genes (31%) through inhibiting multiple signaling pathways. RT-qPCR was used to confirm the results in several genes associated with M1 macrophage activation including: TNF, IL6, IL1b, iNOS, MMP2, and MMP9.

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Emodin inhibits macrophage classical activation [Control-LPS-IFNg-Emodin]

2016-07-04 | E-GEOD-73310 | biostudies-arrayexpress

Emodin inhibits macrophage alernative activation

Project description:Emodin inhibits macrophage alernative activation

| PRJNA296569 | ENA

Mus musculus

Project description:Emodin inhibits macrophage alernative activation [Control-IL4-Emodin]

| PRJNA296575 | ENA

The immunomodulatory effects of periostin on monocyte-derived macrophages

Project description:To explore the effects of periostin on tumor-associated macrophagess, we first sorted CD14+ monocytes from peripheral blood mononuclear cells of healthy donors using magnetic-activated cell sorting and then induced their differentiation into macrophages by culture with M-CSF for 5 days. In the absence of IL-4 stimulation, these macrophages expressed CD163 and Arg1 (a marker of M2 macrophage activation) but not CD206, suggesting that they were similar to macrophages in the early stage of mycosis fungoides (low frequency of CD206+ cells and low IL-4 expression). We then stimulated these macrophages with or without 100 ng/ml of periostin for 6 hours and examined gene expression using a cDNA microarray. Periostin stimulated gene expression on monocyte-derived macrophages was measured at 6 hours after exposure to doses of 100 ng/ml periostin.

2015-07-14 | E-GEOD-70821 | biostudies-arrayexpress

IL4 promotes phagocytosis of murine leukemia cells counteracted by CD47 upregulation

Project description:Cytokines are key regulators of tumor immune surveillance by controlling immune cell activity. Here, we investigated whether interleukin 4 (IL4) has antileukemic activity via immune-mediated mechanisms in an in vivo murine model of acute myeloid leukemia driven by the MLL-AF9 fusion gene. Although IL4 strongly inhibited leukemia development in immunocompetent mice, the effect was diminished in immune-deficient recipient mice, demonstrating that the antileukemic effect of IL4 in vivo is dependent on the host immune system. Using flow cytometric analysis and immunohistochemistry, we revealed that the antileukemic effect of IL4 coincided with an expansion of F4/80+ macrophages in the bone marrow and spleen. To elucidate whether this macrophage expansion was responsible of the antileukemic effect, we depleted macrophages in vivo with clodronate liposomes. Macrophage depletion eliminated the antileukemic effect of IL4, showing that macrophages mediated the IL4-induced killing of leukemia cells. In addition, IL4 enhanced murine macrophage-mediated phagocytosis of leukemia cells in vitro. Global transcriptomic analysis of macrophages revealed an enrichment of signatures associated with alternatively activated macrophages and increased phagocytosis upon IL4 stimulation. Notably, IL4 concurrently induced Stat6-dependent upregulation of CD47 on leukemia cells, which suppressed macrophage activity. Consistent with this finding, combining CD47 blockade with IL4 stimulation enhanced macrophage-mediated phagocytosis of leukemia cells. Thus, IL4 has two counteracting roles in regulating phagocytosis in mice; enhancing macrophage-mediated killing of leukemia cells, but also inducing CD47 expression that protects target cells from excessive phagocytosis. Taken together, our data suggests that combined strategies that activate macrophages and block CD47 have therapeutic potential in AML.

2021-07-14 | GSE155048 | GEO

miRNA expression profiling in cervical cancer cells following emodin treatment

Project description:Cervical cancer is one of the most common cancers in women worldwide. The role of HPV in cervical cancer is well studied, however, the underlying mechanism promoting cervical tumorigenesis is still not fully understood. Recently, emodin was shown to induce cell cycle arrest, induction of differentiation, downregulation of TGF β signaling pathway and apoptosis in cervical cancer cell lines. Further, recent studies have shown the role of miRNAs in mediating abnormal regulatory mechanisms leading to the pathogenesis of cervical cancer and large scale miRNA profiling studies have examined the use of miRNAs as cervical cancer diagnostic markers. However, to date, there is no study being performed to analyze the changes in miRNAs following emodin treatment to determine whether emodin mediates its effects by regulating the expression of miRNAs. Therefore, the aim of the current study is to perform miRNA profiling in cervical cancer cells following emodin treatment and to analyze the roles of differentially expressed miRNAs in regulating the pathogenesis and treatment of cervical cancer.

2022-06-30 | GSE135699 | GEO

Glyco-gene expression induced by IL-4 macrophage activation

Project description:Evaluation of the changes in glycosylation induced by IL-4 alternative macrophage activation Thioglycolate elicited murine peritoneal macrophages where incubated with and with out IL4 for 24 hours. Mouse RNA from macrophages incubated in OptiMEM10 and incubated in OptiMEM10 plus IL4, for 24 hours, was isolated and prepared in triplicate. RNA was labeled and hybridized to the GLYCOv3 array. Resulting Gene expression patterns were analyzed.

2011-04-29 | E-GEOD-28929 | biostudies-arrayexpress

Effect of emodin on long non-coding RNA-mRNA networks in rats with severe acute pancreatitis-induced acute lung injury

Project description:Long non-coding RNAs (lncRNAs) reportedly contribute to disease pathogenesis and drug treatment effects. Both emodin and dexamethasone (DEX) have been used for the treatment of severe acute pancreatitis-associated acute lung injury (SAP-ALI). However, lncRNA regulation networks related to SAP-ALI pathogenesis and drug treatment are unreported. In this study, lncRNAs and mRNAs in the lung tissue of SAP-ALI and control rats, with or without drug treatment (emodin or DEX), were assessed by RNA sequencing. Results showed that both emodin and DEX were therapeutic for SAP-ALI and that mRNA and lncRNA levels differed between untreated and treated SAP-ALI rats. Gene expression profile relationships for emodin treated and control rats were higher than DEX treated and untreated animals. By comparison of control and SAP-ALI animals, more upregulated than downregulated mRNAs and lncRNAs were observed with emodin treatment. For DEX treatment, more downregulated than upregulated mRNAs and lncRNAs were observed. Functional analysis demonstrated both upregulated mRNA and co-expressed genes with upregulated lncRNAs were enriched in inflammatory and immune response pathways. Further, emodin associated lncRNAs and mRNAs co-expressed modules were different from those associated with DEX. Quantitative polymerase chain reaction demonstrates that selected lncRNA and mRNA co-expressed modules were different in the lung tissue of emodin and DEX treated rats. Also, emodin had different effects compared to DEX on the co-expression network of lncRNAs Rn60_7_1164.1 and AABR07062477.2 for the blue lncRNA module and Nrp1 for the green mRNA module. In conclusion, this study provides evidence that emodin may be a suitable alternative or complementary medicine for treatment of SAP-ALI.

2021-01-03 | GSE151572 | GEO

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