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Wnt1 silences CC/CXC motif chemokine genes in dendritic cells and induces adaptive immune resistance in lung adenocarcinoma

ABSTRACT: Wnt1 silences CC/CXC motif chemokine genes in dendritic cells and induces adaptive immune resistance in lung adenocarcinoma

PROVIDER: PRJNA507436 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR8257981.fastq.gz	Fastqsanger.gz
	SRR8257982.fastq.gz	Fastqsanger.gz
	SRR8257983.fastq.gz	Fastqsanger.gz
	SRR8257984.fastq.gz	Fastqsanger.gz
	SRR8257985.fastq.gz	Fastqsanger.gz

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Wnt1 silences CC/CXC motif chemokine genes in dendritic cells and induces adaptive immune resistance in lung adenocarcinoma

Project description:This study showed that the oncogenic ligand Wnt1 silences chemokine genes in dendritic cells, leading to impaired cross-priming of T cells in lung adenocarcinoma. Blocking Wnt1 enhanced rejection of tumors by acting concomitantly at the cancer and immune cell level.

2019-04-03 | GSE123068 | GEO

Wnt1 silences CC/CXC motif chemokine genes in dendritic cells and induces adaptive immune resistance in lung adenocarcinoma

Project description:Wnt1 silences CC/CXC motif chemokine genes in dendritic cells and induces adaptive immune resistance in lung adenocarcinoma

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Wnt1 silences CC/CXC motif chemokine genes in dendritic cells and induces adaptive immune resistance in lung adenocarcinoma

Project description:Lung adenocarcinoma (LUAD)-derived oncogenic Wnts increase cancer cell proliferative/stemness potential, but whether they also impact the immune microenvironment is unknown. Here we show that LUAD cells use paracrine Wnt1 signaling to induce immune resistance. Wnt1 correlated strongly with tolerogenic genes on the TCGA expression data. In another cohort, Wnt1 was inversely associated with T cell abundance. Altering Wnt1 expression profoundly affected growth of murine lung adenocarcinomas and this was strongly dependent on conventional dendritic cells and T cells. Mechanistically, Wnt1 lead to transcriptional silencing of CC/CXC chemokines in dendritic cells and T cell cross-tolerance. Wnt-target genes were up-regulated in human intratumoral dendritic cells and decreased upon silencing Wnt1, accompanied by enhanced T cell cytotoxicity. siWnt1-loaded nanoparticles as single therapy or part of combinatorial immunotherapies acted at both arms of the cancer-immune ecosystem to halt tumor growth. Collectively, our studies show that Wnt1 enhances adaptive immune rejection of lung adenocarcinomas and highlight its potential targeting as a novel therapeutic strategy

2018-12-21 | GSE124199 | GEO

Function of chemokine (CXC motif) ligand 12 in periodontal ligament fibroblasts

Project description:The periodontal ligament (PDL) is one of the connective tissues located between the tooth and bone. It is characterized by rapid turnover. Periodontal ligament fibroblasts (PDLFs) play major roles in the rapid turnover of the PDL. Microarray analysis of human PDLFs (HPDLFs) and human dermal fibroblasts (HDFs) revealed markedly high expression of chemokine (CXC motif) ligand 12 (CXCL12) in the HPDLFs, which plays an important role in the migration of mesenchymal stem cells (MSCs). The function of CXCL12 in the periodontal ligament was investigated in HPDLFs. CXCL12 in HPDLFs and HDFs was examined by microarray, RT-PCR, qRT-PCR and ELISA. It was also immunohistochemically examined in the PDL in vivo. Chemotactic ability of CXCL12 was evaluated both in PDLFs and HDFs with migration assay of MSCs. The expression of CXCL12 in the HPDLFs was much higher than that in HDFs in vitro. CXCL12 was localized in fibroblasts and extracellular matrix in the PDL in rats. Migration assay demonstrated that the number of migrated MSCs by HPDLFs was significantly higher than that by HDFs. In addition, the migrated MSCs also expressed CXCL12 and several genes that are familiar to fibroblasts. The results suggested that PDLFs are able to synthesize and secrete CXCL12 protein, and that CXCL12 induces migration of MSCs in the PDL in order to maintain rapid turnover of the PDL. The objective of this study was to investigate the function of CXCL12 in the PDL with rapid turnover.Microarray analysis was performed using a Whole Human Genome 8x60K (Agilent Technologies, Tokyo, Japan) containing approximately 44,000 transcripts. According to the manufacturerM-bM-^@M-^Ys protocol, total RNAs from HPDLFs and HDFs were labeled with Cy3 and hybridized on the microarray. The hybridization data for HPDLFs were compared with data for HDFs.

2013-11-07 | E-GEOD-52162 | biostudies-arrayexpress

Function of chemokine (CXC motif) ligand 12 in periodontal ligament fibroblasts

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Trophoblast-Induced Changes in C-X-C Motif Chemokine 10 Expression Contribute to Vascular Smooth Muscle Cell Dedifferentiation During Spiral Artery Remodeling

Project description:Endothelial cell and vascular smooth muscle cell were cocultured in hanging droplets to form spheroids representing an inverted vessel lumen. Control or conditioned media from an extravillous trophoblast (EVT) cell line was incubated with vascular spheroids for 24 hours. Spheroid RNA was then analyzed by Illumina Sentrix BeadChip array. Spheroids incubated with EVT conditioned medium showed significant up/downregulation of 101 genes (>1.5-fold; P<0.05), including an upregulation of C-X-C motif chemokine 10 (IP-10). C-X-C motif chemokine 10 expression was confirmed by qualitative real-time PCR and Western blot analysis of spheroids, and immunohistochemistry of first trimester decidua and ex vivo dissected nonplacental bed spiral arteries. EVT conditioned medium reduced VSMC expression of differentiation markers, and both EVT conditioned medium and C-X-C motif chemokine 10 increased motility of VSMC indicating dedifferentiation of VSMC.

2013-02-17 | E-MTAB-1462 | biostudies-arrayexpress

Wnt1 silences chemokine genes in dendritic cells and induces adaptive immune resistance in lung adenocarcinoma.

Project description:Lung adenocarcinoma (LUAD)-derived Wnts increase cancer cell proliferative/stemness potential, but whether they impact the immune microenvironment is unknown. Here we show that LUAD cells use paracrine Wnt1 signaling to induce immune resistance. In TCGA, Wnt1 correlates strongly with tolerogenic genes. In another LUAD cohort, Wnt1 inversely associates with T cell abundance. Altering Wnt1 expression profoundly affects growth of murine lung adenocarcinomas and this is dependent on conventional dendritic cells (cDCs) and T cells. Mechanistically, Wnt1 leads to transcriptional silencing of CC/CXC chemokines in cDCs, T cell exclusion and cross-tolerance. Wnt-target genes are up-regulated in human intratumoral cDCs and decrease upon silencing Wnt1, accompanied by enhanced T cell cytotoxicity. siWnt1-nanoparticles given as single therapy or part of combinatorial immunotherapies act at both arms of the cancer-immune ecosystem to halt tumor growth. Collectively, our studies show that Wnt1 induces immunologically cold tumors through cDCs and highlight its immunotherapeutic targeting.

| S-EPMC6441097 | biostudies-literature

Homo sapiens

Project description:Function of chemokine (CXC motif) ligand 12 in periodontal ligament fibroblasts

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Suppressed cytokine and chemokine transcriptional signatures in mammary stem/progenitor cells are associated with dietary protection against Wnt1-driven mammary tumorigenesis

Project description:Maintenance and propagation of breast cancer stem cells (BCSCs) is mediated via cytokine and growth factor networks. Direct in vivo linkage between dietary regulation of mammary stem (MaSC)/progenitor cell numbers and protection from breast cancer has not been reported. Here, we investigated the effect of post-weaning intake of soy protein isolate (SPI) relative to the control casein (CAS) diet on the stem/progenitor population and tumor formation in MMTV-Wnt1-Transgenic (Wnt1-Tg) female mice. Gene expression profile of the basal (MaSC-enriched) sub-population in preneoplastic Wnt1-Tg mice demonstrated a stem cell-like expression pattern and markedly suppressed expression of inflammatory cytokines, C-X-C family chemokines, and metastasis-associated genes with dietary SPI exposure. four Samples: two CAS diet, two SPI diet

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Structural and functional studies of CC chemokine receptor 5 phosphorylation and its interactions with arrestin2

Project description:The two non-visual arrestin isoforms, arrestin2 and arrestin3, recognize and bind hundreds of G protein-coupled receptors (GPCRs) with different phosphorylation patterns leading to distinct functional outcomes. Whereas the impact of phosphorylation of the vasopressin 2 receptor and rhodopsin on arrestin interactions has been well studied, much less known for other GPCRs. Here we have characterized the interaction between the phosphorylated CC chemokine receptor 5 (CCR5) and arrestin2. Mass spectrometry and biochemical revealed several new CCR5 phosphorylation sites, which proved essential for the formation of stable complexes with arrestin2. Crystal structures of arrestin2 in apo form and in complexes with two CCR5 C-terminal phosphopeptides revealed three key CCR5 phosphoresidues in a pXpp motif that form extensive interactions with arrestin2 and lead to activation. The same phosphoresidue-cluster is present in other receptors which form stable complexes with arrestin2. The contributions of each CCR5 phosphoresidue on arrestin2 conformation and binding have been characterized by a combination of NMR spectroscopy, biochemical and functional assays. We propose that the identified pXpp motif is responsible for robust arrestin2 recruitment in many GPCRs. Moreover, an analysis of available sequence, structural and functional information on other GPCR arrestin interactions suggests a particular spatial arrangement of phosphoresidues within the GPCR intracellular loops and C-terminal tail determines arrestin2 and 3 isoform specificity.

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