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249 items found for "cell death"

  • Drosophila cytokine GBP2 exerts immune responses and regulates GBP1 expression through GPCR receptor Mthl10

    , we demonstrate that GBP2 replicates the GBP1-mediated cellular immune response from Drosophila S2 cells Furthermore, treatment of S2 cells with GBP2 enhanced GBP1 expression levels, but GBP1 did not affect GBP2-induced enhancement of GBP1 expression was not observed in Mthl10 knockdown cells. Enhancement of GBP2 expression was observed in both Drosophila larvae and S2 cells under heat stress Finally, Ca2+ mobilization assay in GCaMP3-expressing S2 cells demonstrated that GBP2 mobilizes Ca2+

  • Mutation Patterns Predict Drug Sensitivity in Acute Myeloid Leukemia

    Experimental design: We performed targeted sequencing, high-throughput drug screening, and single-cell genomic profiling on leukemia cell samples derived from patients with AML. understand the co-occurring mutation patterns and further investigated the mutation profiles in the single cells The application of single-cell genomic sequencing unveiled the co-occurrence of variants at the individual cell level, highlighting the presence of distinct subclones within patients with AML.

  • Pharmacological inhibition of neuropeptide Y receptors Y1 and Y5 reduces hypoxic breast cancer migration, proliferation, and signaling

    and hypoxia on migration, proliferation, invasion, and signaling in 2D and 3D models of breast cancer cell Antagonizing NPY1R and/or NPY5R in hypoxia compared to normoxia more greatly reduced MAPK signaling, cell proliferation, cell migration and invasion, and spheroid growth and invasion. The estrogen receptor positive MCF7 cells were significantly less invasive in 3D spheres when NPY5R was There were some discrepancies in the responses of each cell line to the isoform-specific antagonists

  • High Metabolite Concentrations in Portal Venous Blood as a Possible Mechanism for Microbiota Effects on the Immune System, and Western Diseases

    Herein we propose a model for immune conditioning, whereby metabolites such as butyrate affect immune cells Deficiency of SCFA would lead to pro-inflammatory immune cell skewing through insufficient G-protein Such pro-inflammatory immune cells may travel to tissues such as the brain, the lung, the kidney etc This model helps explain how the gut microbiome may be affecting peripheral immune cells, and consequently fatty acids Source Contribute to the GPCR News Coming soon Become a Contributor Classified GPCR News Call

  • Chemokine Physiology in Cancer

    Chemokines are chemotactic cytokines whose canonical functions govern movement of receptor expressing cells chemokines play paradoxical roles in both the directed emigration of metastatic, receptor-expressing cancer cells out of the tumor as well as immigration of tumor infiltrating immune cells that culminate in a tumor Authors Donovan Drouillard, Brian T Craig, Michael B Dwinell Tags Chemokine receptor; cell migration; Source Contribute to the GPCR News Coming soon Become a Contributor Classified GPCR News Call for GPCR

  • A disturbed metabolite-GPCR axis is associated with microbial dysbiosis in IBD patients: Potential role of GPR109A in macrophages

    The role of GPR109A was studied in depth and increased expression of this receptor was detected in epithelial cells and cells from lamina propria, including CD68+ macrophages, in IBD patients. macrophages Source Contribute to the GPCR News Coming soon Become a Contributor Classified GPCR News Call

  • Olfactory Receptors and Tumorigenesis: Implications for Diagnosis and Targeted Therapy

    Increasing evidence reveals the heightened expression of olfactory receptors in tumorous tissues and cells Olfactory receptors have demonstrated influence over tumor cell proliferation and metastasis, establishing Guo-Tai Wang Tags G Protein-coupled receptors , Olfactory receptors , Therapeutic targeting , Tumor cell Source Contribute to the GPCR News Coming soon Become a Contributor Classified GPCR News Call for GPCR

  • Metabolic crosstalk: Extracellular ATP and the tumor microenvironment in cancer progression and therapy

    transmitting signals inside the body, which is necessary for controlling the life activities of all cells , including tumor cells [1]. ATP functions as a mighty damage-linked molecular pattern when released outside the cell, accumulating protein-coupled receptors (GPCR) (P2Y) interact with ATP and other nucleotides, influencing diverse immune cell microenvironment (TME) Source Contribute to the GPCR News Coming soon Become a Contributor Classified GPCR News Call

  • From outside to inside and back again: the lysophosphatidic acid-CCN axis in signal transduction

    protein-coupled receptors (GPCRs), enhancing proliferation, adhesion, and migration in many types of cancer cells Our group previously reported that LPA induces production of CCN1 protein in human prostate cancer cell In these cells, the mitogenic activity of LPA is mediated by LPA Receptor 1 (LPAR1), a GPCR. In some model systems, CCN1 and CCN2 play key roles in LPA/S1P-induced cell migration and proliferation Kathryn E Meier Source Contribute to the GPCR News Coming soon Become a Contributor Classified GPCR News Call

  • Stretch regulates alveologenesis and homeostasis via mesenchymal Gαq/11-mediated TGFβ2 activation

    Mesenchymal cells play key roles in numerous developmental processes. subunits Gαq and Gα11 (Gαq/11) transmit mechanical and chemical signals to activate TGFβ in epithelial cells exhibited abnormal alveolar development, with suppressed myofibroblast differentiation, altered mesenchymal cell synthetic function, and reduced lung TGFβ2 deposition, as well as kidney abnormalities. undescribed mechanism of cyclical stretch-induced Gαq/11-dependent TGFβ2 signalling in mesenchymal cells

  • GPR37 promotes colorectal cancer against ferroptosis by reprogramming lipid metabolism via p38-SCD1 axis

    Depletion of GPR37 significantly reduced CRC tumor cell growth both in vitro and in vivo. Further tests showed that GPR37 protects cancer cells from ferroptosis by upregulating SCD1 expression Mechanistic studies have shown that GPR37 modulates lipid metabolism in tumor cells by promoting SCD1 SCD1 , p38 Source Contribute to the GPCR News Coming soon Become a Contributor Classified GPCR News Call

  • Natural carboxyterminal truncation of human CXCL10 attenuates glycosaminoglycan binding, CXCR3A signaling and lymphocyte chemotaxis, while retaining angiostatic activity

    of 10 kDa (IP-10/CXCL10) is a dual-function CXC chemokine that coordinates chemotaxis of activated T cells and natural killer (NK) cells via interaction with its G protein-coupled receptor (GPCR), CXC chemokine CXCL10(1-77) using surface plasmon resonance for glycosaminoglycan (GAG) binding affinity, assays for cell migration, second messenger signaling downstream of CXCR3, and flow cytometry of CHO cells and primary human T lymphocytes and endothelial cells.

  • The binding mechanism of an anti-multiple myeloma antibody to the human GPRC5D homodimer

    Its high expression on the surface of multiple myeloma cells has rendered it an attractive target for therapeutic interventions, including monoclonal antibodies, CAR-T cells, and T-cell engagers. Liu, Fei Xu Source Contribute to the GPCR News Coming soon Become a Contributor Classified GPCR News Call

  • CCR6 as a Potential Target for Therapeutic Antibodies for the Treatment of Inflammatory Diseases

    Th17 cells express the CCR6 receptor and inflammatory cytokines, including IL-17, IL-21 and IL-22, which The CCL20/CCR6 mechanism plays a crucial role in the recruitment of these pro-inflammatory cells to local Tags CCR6 , GPCRs , Th17 cells , antibody , immune system , inflammation , therapy . Source Contribute to the GPCR News Coming soon Become a Contributor Classified GPCR News Call for GPCR

  • Chemoattractant receptor signaling in humoral immunity

    2024 Abstract "Efficient induction of humoral immune responses depends on orchestrated migration of B cells recruits a specific GRK to chemoattractant receptors and plays an important role in the control of B cell Authors Taiichiro Shirai , Akiko Nakai , Kazuhiro Suzuki Tags B cell migration , COMMD3/8 complex , GRK Source Contribute to the GPCR News Coming soon Become a Contributor Classified GPCR News Call for GPCR

  • Agonists of galanin subtype 2 receptor may prevent pancreatic cancer and agonists of angiotensin II type 2 receptor may prevent colorectal cancer

    colorectal carcinoma (CRC) is better than that of PDAC, it still is the second-leading cause of cancer deaths Stimulation of GAL2 receptor may modulate immune surveillance and inhibits PDAC via cell cycle inhibition , pancreas Source Contribute to the GPCR News Coming soon Become a Contributor Classified GPCR News Call

  • G protein-coupled receptors: A target for microbial metabolites and a mechanistic link to microbiome-immune-brain interactions

    human protein atlas database, we inferred the most predominant GPCR-mediated microbial metabolite-human cell permeability of the small-molecules we elucidated their molecular interactions with specific human cell receptors, particularly expressed on human intestinal epithelial cells, immune cells and the nervous Metabolites Source Contribute to the GPCR News Coming soon Become a Contributor Classified GPCR News Call

  • Glucose and HODEs regulate Aspergillus ochraceus quorum sensing through the GprC-AcyA pathway

    Individual cells trend to adapt environmental changes in a "whole" flora through communications, allowing Furthermore, GprC and AcyA regulate the primary metabolism as well as secondary metabolism, and further These studies highlight a crucial G protein signaling pathway for cell communication that is mediated ochraceus, hoping to achieve comprehensive prevention and control of mycotoxin pollution from interrupting cell Authors Jing Gao, Huiqing Liu, Yuxin Jin, Yunbo Luo, Kunlun Huang, Zhihong Liang Tags Cell communication

  • CaaX-motif-adjacent residues influence G protein gamma (Gγ) prenylation under suboptimal conditions

    We examined the prenylation of carboxy-terminus (Ct) mutated Gγ in cells exposed to Fluvastatin and prenyl monitored the subcellular localization of fluorescently tagged Gγ subunits and their mutants using live-cell Given the cell and tissue-specific expression of different Gγ subtypes, our findings indicate a plausible mechanism allowing for statins to differentially perturb heterotrimeric G protein signaling in cells prenyltransferases , statin Source Contribute to the GPCR News Coming soon Become a Contributor Classified GPCR News Call

  • 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 Michael Sixt Source Contribute to the GPCR News Coming soon Become a Contributor Classified GPCR News Call

  • PAXIP1-AS1 is associated with immune infiltration and predicts poor prognosis in ovarian cancer

    PAXIP1-AS1) was found to promote proliferation, migration, EMT, and apoptosis of ovarian cancer (OC) cells in OC cell lines, but the relationship between PAXIP1-AS1 expression and clinical characteristics, prognosis QRT-PCR was used to validate the expression of PAXIP1-AS1 in OC cell lines. PAXIP1-AS1 was significantly downregulated in OC cell lines compared with IOSE29 cell line. , Hui Liu Source Contribute to the GPCR News Coming soon Become a Contributor Classified GPCR News Call

  • Small-molecule targeting of GPCR-independent noncanonical G-protein signaling in cancer

    heterotrimeric G-proteins (Gαβγ) by G-protein-coupled receptors (GPCRs) is a quintessential mechanism of cell disrupted their engagement with GIV/Girdin, thereby blocking noncanonical G-protein signaling in tumor cells and inhibiting proinvasive traits of metastatic cancer cells. Source Contribute to the GPCR News Coming soon Become a Contributor Classified GPCR News Call for GPCR

  • 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

  • Structural Basis for the Recognition of GPRC5D by Talquetamab, a Bispecific Antibody for Multiple Myeloma

    MM) is a complex hematological malignancy characterized by abnormal antibody production from plasma cells G-protein-coupled receptor class C group 5 member D (GPRC5D), an orphan GPCR predominantly expressed in MM cells Talquetamab, a Food and Drug Administration-approved T-cell-directing bispecific antibody developed for talquetamab Source Contribute to the GPCR News Coming soon Become a Contributor Classified GPCR News Call

  • Noval insights and therapeutic strategies for tumor-induced kidney pathologies

    these findings by emphasizing the structural and evolutionary significance of TACR3 and provided an in-depth analysis of cell type specific expression of TACR3 in response to renal injury and expressional dynamics Chao Zhang Source Contribute to the GPCR News Coming soon Become a Contributor Classified GPCR News Call

  • Ep 146 with Dr Michael Feigin

    ., PNAS, 2014) in breast cancer pathogenesis, using mouse models, three-dimensional cell culture and Mike's Research on Cell Polarity and GPCRs in Cancer Mike shared his research on cell polarity and its He also discussed the impact of disrupting histone processing on rapidly proliferating cells, such as cancer cells, and suggested a therapeutic index for a drug called JTE-6.7. He also discussed his experiments and discoveries about GPR161 in mammary epithelial cells, the effect

  • GPR143 controls ESCRT-dependent exosome biogenesis and promotes cancer metastasis

    elevated in multiple cancers, and quantitative proteomic and RNA profiling of exosomes in human cancer cell studies in mice, we show that GPR143 promotes metastasis by secreting exosomes and increasing cancer cell provide a mechanism for regulating the exosomal proteome and demonstrate its ability to promote cancer cell Source Contribute to the GPCR News Coming soon Become a Contributor Classified GPCR News Call for GPCR

  • In Silico Design of Novel RGS2-Galpha-q Interaction Inhibitors with Anticancer Activity

    Docking of identified hits to RGS2 as well as other RGS structures was used to screen the hits for potent Whole cell assays showed the top 10 ranking compounds, AJ-1-AJ-10, to inhibit RGS2-Gαq interactions. All 10 compounds inhibited the growth of several RGS2 expressing cancers in cell culture assays. In addition, AJ-3 inhibited the migration of LNCaP prostate cancer cells in wound healing assays. M Mahfouz Source Contribute to the GPCR News Coming soon Become a Contributor Classified GPCR News Call

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