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264 items found for "dendritic cell"

  • The pyruvate-GPR31 axis promotes transepithelial dendrite formation in human intestinal dendritic cells

    formation in human intestinal dendritic cells Published date October 29, 2024 Abstract "The intestinal lumen is rich in gut microbial metabolites that serve as signaling molecules for gut immune cells. cells (cDC1s) in the lamina propria of the human intestine. Using human induced pluripotent stem cell-derived cDC1s and a monolayer human gut organoid coculture dendrites (TED).

  • The orphan G protein-coupled receptor 141 expressed in myeloid cells functions as an inflammation suppressor

    + Gr1+), monocytes (CD11b + Gr1-Ly6C+ and CD11b + Gr1-Ly6C-), macrophages (F4/80+), and dendritic cells Gpr141 -/- mice showed increased CD11b + Gr1+ neutrophils, CD11b + Gr1- monocytes, CD11c+ dendritic cells Moreover, CD11c+ dendritic cells (DCs) purified from Gpr141 -/- mice increased cytokine production of myelin oligodendrocyte glycoprotein 35-55-specific T cells. cells , experimental autoimmune encephalomyelitis , monocytes , myeloid cells .

  • Combinatorial depletions of G-protein coupled receptor kinases in immune cells identify pleiotropic and cell type-specific functions

    types (neutrophils, T cells, B cells and dendritic cells) and systematically addressed the functional one GPCR type in different cell types, and (b) different GPCRs in one cell type. Lastly, we provide evidence that complete GRK deficiency impairs dendritic cell homeostasis, which unexpectedly results from defective dendritic cell differentiation and maturation in vitro and in vivo . ; GRK; T cells; dendritic cells; immune cell trafficking; leukocytes; neutrophils.

  • CCL5-producing migratory dendritic cells guide CCR5+ monocytes into the draining lymph nodes

    < GPCR News < GPCRs in Oncology and Immunology CCL5-producing migratory dendritic cells guide CCR5+ monocytes into the draining lymph nodes Published date March 21, 2023 Abstract "Dendritic cells (DCs) and monocytes capture, transport, and present antigen to cognate T cells in the draining lymph nodes (LNs) in a CCR7 Jakubzick Source Contribute to the GPCR News Coming soon Become a Contributor Classified GPCR News Call

  • GPR97 depletion aggravates imiquimod-induced psoriasis pathogenesis via amplifying IL-23/IL-17 axis signal pathway

    September 10, 2024 Abstract "Skin psoriasis is defined as receiving external stimulation to activate skin dendritic well as induce T helper 17 (Th17) cell differentiation leading to elevated production of interleukin In this research, our team allocated GPR97 depletion (GPR97-/-), GPR97 conditional depletion on dendritic In addition, hyperproliferative keratinocytes as well as accumulation of DCs and Th17 cells were detected abnormal proliferation as well as Th17 cells differentiation.

  • G protein coupled receptor transcripts in human immune cells and platelets

    GPCR News < GPCRs in Oncology and Immunology G protein coupled receptor transcripts in human immune cells We have used the method to profile GPCR transcripts in white blood cells (WBCs)-B, CD4, CD8, NK, and dendritic cells; monocytes, and macrophage-like monocytes treated with granulocyte-macrophage colony-stimulating factor-as well as platelets. On average, the white cells studied expressed 160 receptor mRNAs (range, 123-206).

  • CCR7 acts as both a sensor and a sink for CCL19 to coordinate collective leukocyte migration

    Whereas it is well established that single-cell migration is often guided by gradients of chemokines Upon exposure to the CCR7 ligand CCL19, dendritic cells (DCs) effectively internalize the receptor and patterns to the size and geometry of the environment, and provide a guidance cue for other comigrating cells dual role of CCR7 as a GPCR that both senses and consumes its ligand can thus provide a novel mode of cellular Michael Sixt Source Contribute to the GPCR News Coming soon Become a Contributor Classified GPCR News Call

  • A virally encoded GPCR drives glioblastoma through feed-forward activation of the SK1-S1P1 signaling axis

    Here, we showed that US28 increased the malignancy of U251 glioblastoma cells by enhancing signaling Enhanced S1P signaling promoted glioblastoma cell proliferation and survival by activating the kinases US28 also activated the S1P signaling axis in HCMV-infected cells. Authors Nick D Bergkamp , Jeffrey R van Senten , Hendrik J Brink , Maarten P Bebelman , Jelle van den Martine J Smit Source Contribute to the GPCR News Coming soon Become a Contributor Classified GPCR News Call

  • Interaction with the cell adhesion molecule NEGR1 affects mGluR5 cell signalling

    Registration Logo Contest Committee Sponsors GPCR Retreat Program < Back to schedule Interaction with the cell adhesion molecule NEGR1 affects mGluR5 cell signalling Date & Time Friday, November 3rd / 1:30 PM Abstract Ribeiro has supervised eleven M.Sc. and six Ph.D. students, as well as five post-doctorate fellows. Nowadays, her research group comprises four undergraduates, two M.Sc., and six Ph.D. students, as well These drugs were shown to be very effective to rescue the cell death observed in a mouse model of Huntington

  • The β2-adrenergic receptor associates with CXCR4 multimers in human cancer cells

    Oncology and Immunology The β2-adrenergic receptor associates with CXCR4 multimers in human cancer cells PIE-FCCS can resolve membrane protein density, diffusion, and multimerization state in live cells at into multimeric complexes larger than dimers in MDA-MB-231 human breast cancer cells and in HCC4006 human lung cancer cells. than in COS-7 and CHO cells and in a ligand-dependent manner.

  • The combination of brentuximab vedotin and chidamide synergistically suppresses the proliferation of T-cell lymphoma cells through the enhancement of apoptosis

    combination of brentuximab vedotin and chidamide synergistically suppresses the proliferation of T-cell lymphoma cells through the enhancement of apoptosis Published date November 3, 2023 Abstract " Purpose : Peripheral T-cell lymphoma (PTCL) is an aggressive disease with a poor prognosis. HH cells, originating from an aggressive cutaneous T-cell lymphoma, were used as an experimental model The combined effects of chidamide and BV were demonstrated in a study of HH-cell xenograft mice; mean

  • Session VIII | Adhesion GPCR Workshop 2024 | Dr. GPCR Ecosystem

    roles of AGPCRs in the periphery ADGRG1/GPR56 regulates survival of terminally differentiated CD8+ T cells health and disease Douglas Tilley ADGRG1/GPR56 regulates survival of terminally differentiated CD8+ T cells Centre for Experimental Medicine, Institute for Biocehmistry and Molecular Cell Biology, University Medical Diabetes and Cancer, Helmholtz Diabetes Centre, Munich 2012 - 2015 Postdoctoral fellow, Department of Cell impact cardiac structure and function, and has evolved to encompass their roles in regulating immune cell

  • Blockade of vasoactive intestinal peptide receptor 2 (VIPR2) signaling suppresses cyclin D1-dependent cell-cycle progression in MCF-7 cells

    progression in MCF-7 cells Published date March 1, 2024 Abstract "Vasoactive intestinal peptide (VIP In this study, we examined the role of VIPR2 in cell cycle progression. in MCF-7 cells. The percentage of cells in the S-M phase was decreased in MCF-7 cells treated with KS-133. In MCF-7 cells stably-expressing VIPR2, KS-133 decreased PI3K activity and cAMP levels.

  • Autocrine proteinase-activated receptor signaling in PC3 prostate cancer cells

    in Oncology and Immunology Autocrine proteinase-activated receptor signaling in PC3 prostate cancer cells PARs are highly expressed in many cancer cells, including prostate cancer (PCa), and regulate various In this study, we examined the androgen-independent human prostatic cancer cell line PC3 and find the Using genetically encoded PAR cleavage biosensors, we showed that PC3 cells secrete proteolytic enzymes of PAR1 promotes PC3 cell migration and suppresses cell proliferation, whereas PAR2 deficiency showed

  • Vasoactive intestinal peptide receptor 2 signaling promotes breast cancer cell proliferation by enhancing the ERK pathway

    in Oncology and Immunology Vasoactive intestinal peptide receptor 2 signaling promotes breast cancer cell cell lines, promoted cell proliferation. proliferation in VIPR2-overexpressing MCF-7 and MDA-MB-231 cells. was greater than that in control cells, suggesting the increased PKA activity. at the same level as observed in EGFP-expressing cells treated with U0126.

  • NPFF stimulates human ovarian cancer cell invasion by upregulating MMP-9 via ERK1/2 signaling

    < GPCR News < GPCRs in Oncology and Immunology NPFF stimulates human ovarian cancer cell invasion by The TaqMan probe-based RT-qPCR showed that NPFF and NPFFR2 were expressed in three human EOC cells, CaOV3 In comparison, NPFF and NPFFR2 expression levels were higher in SKOV3 cells than in CaOV3 or OVCAR3 cells Treatment of SKOV3 cells with NPFF did not affect cell viability and proliferation but stimulated cell This study provides evidence that NPFF stimulates EOC cell invasion by upregulating MMP-9 expression

  • Simultaneous activation of CXC chemokine receptor 4 and histamine receptor H1 enhances calcium signaling and cancer cell migration

    activation of CXC chemokine receptor 4 and histamine receptor H1 enhances calcium signaling and cancer cell Here, we show that HRH1 is widely expressed in various cancer cell lines and cancer tissues and that that endogenously express CXCR4 and HRH1 but not in cells deficient in CXCR4 or HRH1. while histamine alone does not induce cell migration. Enhanced calcium signaling and cell migration are also observed in NCI-H23 and HeLa cells, which coexpress

  • Respiratory infections predominate after day 100 following B-cell maturation antigen-directed CAR T-cell therapy

    News < GPCRs in Oncology and Immunology Respiratory infections predominate after day 100 following B-cell maturation antigen-directed CAR T-cell therapy Published date September 26, 2023 Abstract "Infections are an important complication after B-cell maturation antigen (BCMA)-directed chimeric antigen receptor (CAR) T-cell therapy and risks may differ between the early and late periods. Respiratory infections predominate after BCMA CAR T-cell therapy, particularly after day 100.

  • The EBI2 receptor is coexpressed with CCR5 in CD4+ T cells and boosts HIV-1 R5 replication

    < GPCR News < GPCRs in Oncology and Immunology The EBI2 receptor is coexpressed with CCR5 in CD4+ T cells Methods: We identified GPCRs expressed in primary CD4+CCR5+ T cells by multi-RT-qPCR. Cell lines expressing EBI2 were established by transduction with HIV vectors. The amount of HIV reverse transcripts was similar in cells expressing or not EBI2. Conclusions: EBI2 expression in CD4+CCR5+ cells boosts HIV-1 R5 productive infection.

  • Activation of orphan receptor GPR132 induces cell differentiation in acute myeloid leukemia

    < GPCR News < GPCRs in Oncology and Immunology Activation of orphan receptor GPR132 induces cell differentiation Here, we showed that genetic activation of the orphan GPCR GPR132 significantly induced cell differentiation Notably, GPR132 activation by 8GL promoted differentiation and reduced colony formation in human AML cell We further showed that the combination of 8GL and an mTOR inhibitor synergistically elicited AML cell impaired tumor growth and extended mouse survival in an AML xenograft model accompanied by enhanced cell

  • Stimulation of ectopically expressed muscarinic receptors induces IFN-γ but suppresses IL-2 production by inhibiting activation of pAKT pathways in primary T cells

    induces IFN-γ but suppresses IL-2 production by inhibiting activation of pAKT pathways in primary T cells signaling molecules and the phosphatidylinositol, Ras, MAPK, and PI3 kinase pathways, leading to T cell This may explain the inhibitory impact on IL-2 production in hM3Dq/β1T cells. that activating the pAKT pathway is critical for IL-2 production in T cells." Tags GPCR; T cells; muscarinic receptor; signaling.

  • miR-19a may function as a biomarker of oral squamous cell carcinoma (OSCC) by regulating the signaling pathway of miR-19a/GRK6/GPCRs/PKC in a Chinese population

    < GPCR News < GPCRs in Oncology and Immunology miR-19a may function as a biomarker of oral squamous cell Using a transcriptomic analysis of over 37,000 nuclei, we identified twelve distinct clusters of cells corresponding to temperature-sensing arista neurons, humidity-sensing sacculus neurons, and support cells We found that each cell type could be characterized by a unique expression profile of ion channels, GPCR signaling molecules, synaptic vesicle cycle proteins, and cell adhesion molecules.

  • A2aR on lung adenocarcinoma cells: A novel target for cancer therapy via recruiting and regulating tumor-associated macrophages

    < GPCR News < GPCRs in Oncology and Immunology A2aR on lung adenocarcinoma cells: A novel target for 2a receptor (A2aR), a typical GPCR with a high affinity for adenosine, is widely expressed on immune cells Here, we identify that A2aR is specifically expressed on tumor cells from lung adenocarcinoma (LUAD) We hypothesize that blocking A2aR on LUAD cells will inhibit the role of TAMs and control tumor growth Constructing models of TAMs and LUAD mice, we find that A2aR highly expressed on LUAD cells promotes

  • Molecular characterization of breast cancer cell pools with normal or reduced ability to respond to progesterone: a study based on RNA-seq

    < GPCR News < GPCRs in Oncology and Immunology Molecular characterization of breast cancer cell pools Methods: We disrupted the PR gene (PGR) in ERα-positive/PR-positive T-47D cells using the CRISPR/Cas9 to control T-47D cells. We analyzed the gene expression profiles of PR-low and control T-47D cells in the absence of hormone More than 6000 genes were DE in control T-47D cells upon stimulation with P4 or P4 plus E2.

  • Opposite Effects of Src Family Kinases on YAP and ERK Activation in Pancreatic Cancer Cells: Implications for Targeted Therapy

    and Immunology Opposite Effects of Src Family Kinases on YAP and ERK Activation in Pancreatic Cancer Cells IGF-1 receptors and G protein-coupled (GPCR) signaling systems leading to mitogenic signaling in PDAC cells agonist neurotensin induced rapid activation of Src family of tyrosine kinases (SFK) within PANC-1 cells by FAK phosphorylation at Tyr576/577 and Tyr861, sensitive biomarkers of SFK activity within intact cells and suppressed the growth of Mia PaCa-2 cells xenografted into the flank of nude mice.

  • Systems Pharmacodynamic Model of Combination Gemcitabine and Trabectedin in Pancreatic Cancer Cells. Part II: Cell Cycle, DNA Damage Response, and Apoptosis Pathways

    Immunology Systems Pharmacodynamic Model of Combination Gemcitabine and Trabectedin in Pancreatic Cancer Cells Part II: Cell Cycle, DNA Damage Response, and Apoptosis Pathways Published date October 31, 2023 Abstract , we reported the synergistic cytotoxic effects of gemcitabine and trabectedin on pancreatic cancer cells was performed, and a system pharmacodynamics model (SPD) was developed to capture pancreatic cancer cell Here we describe drug effects on pathways associated with cell cycle, DNA damage response (DDR), and

  • Activation of PI3K/Akt pathway by G protein-coupled receptor 37 promotes resistance to cisplatin-induced apoptosis in non-small cell lung cancer

    pathway by G protein-coupled receptor 37 promotes resistance to cisplatin-induced apoptosis in non-small cell protein-coupled receptor 37 (GPR37) exhibits unknown functions in tumors, particularly in non-small-cell We detected the expression of GPR37 in NSCLC tissues and cell lines. The study explored the influence of GPR37 on tumor cell proliferation. Furthermore, we examined the effects of GPR37 on tumor cell apoptosis and invasion.

  • Metallo-protease Peptidase M84 from Bacillusaltitudinis induces ROS-dependent apoptosis in ovarian cancer cells by targeting PAR-1

    Metallo-protease Peptidase M84 from Bacillusaltitudinis induces ROS-dependent apoptosis in ovarian cancer cells This metallo-protease had no discernible impact on normal cell survival, but it specifically induced apoptosis in ovarian cancer cells. PAR-1, a GPCR which is reported to be overexpressed in ovarian cancer cells, was identified as a target This evoked apoptotic death of the ovarian cancer cells through the intrinsic route.

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