Search results for "Adenosinergic"

showing 2 items of 2 documents

CD73-generated extracellular adenosine in chronic lymphocytic leukemia creates local conditions counteracting drug-induced cell death

2011

Abstract Extracellular adenosine (ADO), generated from ATP or ADP through the concerted action of the ectoenzymes CD39 and CD73, elicits autocrine and paracrine effects mediated by type 1 purinergic receptors. We have tested whether the expression of CD39 and CD73 by chronic lymphocytic leukemia (CLL) cells activates an adenosinergic axis affecting growth and survival. By immunohistochemistry, CD39 is widely expressed in CLL lymph nodes, whereas CD73 is restricted to proliferation centers. CD73 expression is highest on Ki-67+ CLL cells, adjacent to T lymphocytes, and is further localized to perivascular areas. CD39+/CD73+ CLL cells generate ADO from ADP in a time- and concentration-dependen…

AdenosineCellular differentiationChronic lymphocytic leukemia5'-Nucleotidase; Adenosine; Adenosine Diphosphate; Adenosine Triphosphate; Antigens CD; Antineoplastic Agents Phytogenic; Apyrase; Autocrine Communication; Cell Death; Cell Differentiation; Cell Movement; Cell Survival; Etoposide; Extracellular Space; GPI-Linked Proteins; Humans; Leukemia Lymphocytic Chronic B-Cell; Paracrine Communication; Receptor Adenosine A2A; Tumor Cells Cultured; Biochemistry; Immunology; Hematology; Cell BiologyMICROENVIRONMENTCD38BiochemistryACTIVATIONAdenosine TriphosphateCell MovementPhytogenichemic and lymphatic diseasesTumor Cells CulturedChronic5'-NucleotidaseEtoposideLeukemiaCulturedCell DeathTUMOR-GROWTHApyrasePurinergic receptorCell DifferentiationHematologyLymphocyticCDTumor CellsCell biologyAdenosine DiphosphateAutocrine CommunicationLeukemiaReceptorIMMUNE SUPPRESSIONReceptor Adenosine A2ACell SurvivalImmunologyAntineoplastic AgentsAdenosinergicBiologyGPI-Linked ProteinsDAMAGE-INDUCED APOPTOSISAdenosine A2AParacrine signallingAntigens CDParacrine CommunicationmedicineHumansAntigensAutocrine signallingImmunobiologyB-CellCell BiologyDAMAGE-INDUCED APOPTOSIS; T-CELLS; IMMUNE SUPPRESSION; ZAP-70 EXPRESSION; TUMOR-GROWTH; RECEPTOR; CD73; ACTIVATION; CD38; MICROENVIRONMENTmedicine.diseaseAntineoplastic Agents PhytogenicLeukemia Lymphocytic Chronic B-CellSettore MED/15 - MALATTIE DEL SANGUET-CELLSCD73Extracellular SpaceZAP-70 EXPRESSIONCD38Blood
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Role of Adenosine Receptors in Rare Neurodegenerative Diseases with Motor Symptoms

2021

: The approval of istradefylline, an adenosine 2A receptor (A2AR) antagonist, as an addon treatment in adult patients with Parkinson’s disease by the Food and Drug Administration (FDA) and European Medicines Agency (EMA), is the latest proof of the importance of the adenosinergic system in the nervous system. Adenosine is an endogenous purine nucleoside with a role as a modulator of both neurotransmission and the inflammatory response. As such, the expression pattern of the 4 adenosine receptors (A1R, A2AR, A2BR and A3R) and the extracellular adenosine levels have attracted great interest in the pathogenesis and possible treatment of rare neurodegenerative diseases with motor symptoms. The…

congenital hereditary and neonatal diseases and abnormalitiesbusiness.industryNeurodegenerationNeurodegenerative DiseasesCell BiologyGeneral MedicineAdenosinergicIstradefyllinemedicine.diseaseBioinformaticsBiochemistryAdenosine receptorAdenosinechemistry.chemical_compoundchemistrymedicineSpinocerebellar ataxiaAmyotrophic lateral sclerosisbusinessMolecular BiologyMachado–Joseph diseasemedicine.drugCurrent Protein & Peptide Science
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