| 2012 |
Adora2b signaling during myocardial ischemia leads to stabilization of the circadian rhythm protein Per2, which in turn stabilizes HIF-1α, enabling a HIF-dependent metabolic switch to oxygen-efficient glycolysis that is cardioprotective; Per2-/- mice lack this metabolic shift and have larger infarct sizes. |
Genetic knockout mice (Adora2b-/-, Per2-/-), metabolic studies, ischemic preconditioning model, light-induced Per2 stabilization with transcriptional induction of glycolytic enzymes |
Nature medicine |
High |
22504483
|
| 2012 |
Adora2b signaling on bone marrow-derived cells, specifically polymorphonuclear neutrophils (PMNs), dampens myocardial ischemia-reperfusion injury by suppressing TNF-α release from PMNs. |
Bone marrow transplantation between WT and Adora2b-/- mice, neutrophil depletion, Adora2b agonist treatment, cytokine profiling, pharmacologic studies on human activated PMNs |
Anesthesiology |
High |
22531331
|
| 2012 |
Adora2b signaling on T cells enhances regulatory T cell (Treg) differentiation; Adora2b-/- T cells fail to differentiate into Tregs upon adenosine receptor activation, and Adora2b-deficient mice exhibit more severe endotoxin-induced pulmonary inflammation with impaired Treg induction. |
Pharmacologic Adora2b activation, Adora2b-/- mice, endotoxin-induced pulmonary inflammation model, flow cytometry for T cell subsets |
PloS one |
Medium |
22389701
|
| 2012 |
Adora2b signaling on neutrophils constrains TNF-α production during renal ischemia-reperfusion; reconstitution of Adora2b-/- mice with TNF-α-deficient neutrophils rescued the injury phenotype, placing Adora2b upstream of neutrophil-dependent TNF-α in acute kidney injury. |
Adora2b-/- mice, TNF-α antibody blockade, Tnf-α-/- mice, neutrophil depletion and reconstitution, renal ischemia-reperfusion model |
Journal of immunology |
High |
23028059
|
| 2013 |
Alveolar epithelial Adora2b signaling mediates ENT2-dependent lung protection during acute lung injury; dipyridamole-dependent attenuation of lung inflammation was abolished in mice with alveolar epithelial Adora2b deletion, establishing a crosstalk pathway between ENT2 and Adora2b. |
Ent1-/-, Ent2-/- gene-targeted mice, tissue-specific Adora2b deletion in alveolar epithelium, dipyridamole treatment, mechanical ventilation-induced ALI model |
FASEB journal |
High |
23603835
|
| 2013 |
ADORA2B signaling in breast cancer cells downstream of Fra-1 transcription factor promotes filopodia formation and invasive activity; RNAi silencing or pharmacologic blockade of ADORA2B inhibited filopodia formation, invasion in vitro, and tumor outgrowth in lungs in vivo. |
Stable RNAi depletion, pharmacologic ADORA2B antagonism, in vivo xenograft metastasis assays, synthetic lethal drug screen |
Proceedings of the National Academy of Sciences of the United States of America |
High |
23483055
|
| 2013 |
ADORA2B signaling on vascular endothelium mediates protection from diabetic nephropathy; tissue-specific deletion of Adora2b in vascular endothelia (but not tubular epithelia) worsened nephropathy, and selective Adora2b agonist treatment was protective. |
Tissue-specific conditional knockout mice (endothelial vs. tubular), streptozotocin diabetic model, transgenic Adora2b reporter mice, selective agonist (BAY 60-6583) treatment |
Journal of the American Society of Nephrology : JASN |
High |
24262796
|
| 2013 |
ADORA2B acts as a mechanoreceptor in enterochromaffin (EC) cells; under hypoxia, ADORA2B activates HIF-1α signaling via MAPK/CREB pathways and phosphorylates TPH-1 and activates VMAT-1 to stimulate serotonin (5-HT) synthesis and secretion. |
Hypoxia experiments on EC cells and IBD mucosa, antisense knockdown, NECA agonist, MRS1754 antagonist, Renilla luciferase under HRE control, PCR/western blot |
PloS one |
Medium |
23638125
|
| 2014 |
ADORA2B signaling on myeloid cells (alternatively activated macrophages) drives lung fibrosis and pulmonary hypertension; conditional deletion of ADORA2B on myeloid cells attenuated fibrosis and PH with reduced IL-6, hyaluronan, CD206, and arginase-1. |
Conditional knockout mice (Adora2Bf/f-LysMCre), bleomycin-induced lung injury model, bronchoalveolar lavage, histology, lung function measurements |
FASEB journal |
High |
25318478
|
| 2015 |
ADORA2B mediates different cardioprotective mechanisms in a tissue-specific manner: endothelial and myocyte Adora2b mediates ischemic preconditioning, while inflammatory cell (PMN) Adora2b is required for protection from ischemia-reperfusion injury; adoptive transfer of Adora2b-/- PMNs confirmed the PMN-specific role. |
Tissue-specific conditional knockout mice (Lyz2-Cre, VE-cadherin-Cre, myosin-Cre crossed to floxed Adora2b), myocardial I/R and IP models, cytokine profiling, adoptive PMN transfer |
Journal of immunology |
High |
26136425
|
| 1995 |
The human ADORA2B gene is located on chromosome 17p12; its pseudogene maps to chromosome 1q32. Partial sequence revealed an intron interrupting the coding region at the second intracellular loop, similar to A1 and A2a adenosine receptor genes. |
Fluorescence in situ hybridization (FISH), genomic cloning, partial sequence analysis |
Genomics |
High |
7558011
|
| 2016 |
Sevoflurane's hepatoprotective effects during liver ischemia-reperfusion require Adora2b signaling; sevoflurane inhibited platelet-neutrophil complex formation and reduced liver damage in wild-type but not Adora2b-/- mice, and increased Adora2b transcription and expression in liver tissue. |
Adora2b-/- and Adora2a-/- mice, liver IR model, flow cytometry, immunohistochemistry, real-time PCR, ex vivo human blood experiments |
Anesthesiology |
Medium |
27404219
|
| 2016 |
Sustained activation of adenosine A2B receptors on myeloid cells promotes chronic pain by inducing nociceptor hyperexcitability via soluble IL-6 receptor trans-signaling; this mechanism was demonstrated in ADA-deficient mice, sickle cell disease mice, and CFA inflammatory pain models. |
Ada-/- mice, sickle cell disease mouse model, CFA inflammatory pain model, myeloid-specific ADORA2B manipulation, behavioral pain assays |
Cell reports |
High |
27320922
|
| 2017 |
HIF1A transcriptionally upregulates ADORA2B expression on alternatively activated macrophages; HIF1A inhibition reduces ADORA2B expression on AAMs and disrupts AAM differentiation and IL-6 production, establishing HIF1A→ADORA2B as a regulatory axis in pulmonary fibrosis. |
HIF1A inhibitor in bleomycin mouse model, ADORA2B deletion/pharmacological antagonism, cultured macrophage differentiation assays, human IPF lung samples |
FASEB journal |
Medium |
28701304
|
| 2018 |
ADORA2B signaling in pulmonary artery smooth muscle cells (PASMCs) mediates development of pulmonary hypertension through induction of IL-6, hyaluronan synthase 2 (HAS2), and tissue transglutaminase (Tgm2); ADORA2Bf/f-Taglncre mice were protected from PH development. |
ADORA2Bf/f-Taglncre conditional knockout mice, SUGEN/hypoxia and bleomycin PH models, RVSP measurement, Fulton index, vascular remodeling histology, RT-PCR in PASMCs |
Frontiers in physiology |
High |
29910735
|
| 2019 |
APIP (Apaf-1-interacting protein) physically interacts with ADORA2B, stabilizing both proteins by interfering with lysosomal degradation, and activates downstream PKA-CREB signaling; knockdown of APIP impairs ADORA2B cytoprotective effects; the ADORA2B D296G variant (rs200741295) fails to bind APIP and loses cardioprotective activity. |
Co-immunoprecipitation, proximity ligation assay, APIP transgenic mice, Apip+/- mice, ADORA2B D296G knock-in mice, hypoxia cell death assays, AKT-HIF1α pathway analysis |
Cell death & disease |
High |
31263105
|
| 2020 |
Hippocampal ADORA2B regulates Per2 expression and cognitive function; Adora2b-/- mice show reduced hippocampal PER2 protein and impaired T-maze alternation; ADORA2B agonist BAY-60-6583 restored midazolam-induced cognitive dysfunction and hippocampal Per2 levels; C-fos was downregulated in Adora2b-/- hippocampus. |
Adora2b-/- mice, midazolam treatment, BAY-60-6583 agonist administration, T-maze behavioral assay, hippocampal mRNA/protein expression analysis |
Current pharmaceutical design |
Medium |
32294028
|
| 2021 |
Neutrophil-derived netrin-1 is elevated during myocardial ischemia-reperfusion and attenuates cardiac injury through myeloid adenosine A2b receptor (ADORA2B) signaling, establishing an autocrine signaling loop between neutrophil netrin-1 and myeloid ADORA2B. |
Conditional netrin-1 deletion in neutrophils (Ntn1loxP/loxP Lyz2Cre+), neutrophil depletion, recombinant netrin-1 treatment, pharmacologic studies in myocardial I/R model, patient blood samples |
The Journal of experimental medicine |
High |
33891683
|
| 2021 |
CXCR4 and CXCR7 inhibition reduces platelet-neutrophil complex and NET formation through Adora2b signaling; protective effects of CXCR4/CXCR7 antagonism were abolished in Adora2b-/- mice, placing ADORA2B downstream of CXCR4/CXCR7 in inflammatory cell activation. |
Adora2b-/- mice, zymosan- and fecal-induced sepsis models, flow cytometry, histology, in vitro human platelet/PMN assays |
International journal of molecular sciences |
Medium |
34948374
|
| 2023 |
Myocyte-specific ENT1 limits cardioprotection by removing extracellular adenosine; ENT1 deletion in myocytes (Ent1loxP/loxP Myosin Cre+) reduced infarct sizes; cardioprotection from ENT inhibition required myeloid Adora2b signaling (abolished in Adora2bloxP/loxP LysM Cre+ mice), revealing a myocyte ENT1→extracellular adenosine→myeloid Adora2b axis. |
Tissue-specific conditional knockout mice (myocyte ENT1, myeloid Adora2b), dipyridamole treatment, cardiac adenosine level measurements, myocardial I/R model |
JCI insight |
High |
37288658
|
| 2023 |
CD73-dependent extracellular adenosine signals through Adora2b to mediate immunosuppression in pancreatic ductal adenocarcinoma; CD73 small-molecule inhibitors reduced tumor development, and Adora2b was identified as a determinant of adenosine-mediated immunosuppression. |
Genetically engineered and syngeneic mouse PDAC models, CD73 small-molecule inhibitors, multiplex immunofluorescence, HPLC adenosine measurement, transcriptomic analysis |
Cancer research |
Medium |
36720042
|
| 2021 |
Long-term cigarette smoke extract exposure upregulates CD73 and ADORA2B expression, increases adenosine production, inhibits PKC alpha activity and p-ERK signaling, and impairs airway wound repair; knockdown of ADORA2B activates PKC alpha and restores p-ERK signaling, placing ADORA2B upstream of PKC alpha/ERK in chronic airway injury. |
Long-term CSE exposure cell model, ADORA2B and CD73 knockdown, PKC alpha and p-ERK assays, in vivo double knockout CD73/ADORA2B mice, wound closure assays |
Frontiers in physiology |
Medium |
33584346
|
| 2024 |
ADORA2B promotes ferroptosis in chondrocytes by inhibiting the PI3K/Akt pathway; MYC acts as a transcriptional suppressor of ADORA2B (confirmed by dual-luciferase reporter and ChIP assays), and overexpression of ADORA2B reverses MYC-mediated protection from ferroptosis. |
ADORA2B knockdown/overexpression in chondrocytes, dual-luciferase reporter gene assay, ChIP assay, PI3K/Akt inhibitor (LY294002), MYC overexpression, in vivo OA mouse model |
Environmental toxicology |
Medium |
38174997
|
| 2025 |
Caffeine inhibits ADORA2B signaling in red blood cells, impairing glycolytic flux and antioxidant defenses; Adora2b-deficient mice showed impaired glycolytic flux, compromised antioxidant defenses, and decreased transfusion efficacy; caffeine also directly inhibits recombinantly expressed G6PD. |
Adora2b-/- mouse model, murine storage/transfusion studies, recombinant G6PD inhibition assay, human donor cohort (13,091 donors), metabolomics |
Haematologica |
High |
40905089
|
| 2023 |
Dexmedetomidine alleviates pulmonary fibrosis by downregulating ADORA2B expression and suppressing ADORA2B-mediated MAPK pathway activation, thereby inhibiting myofibroblast differentiation; ADORA2B agonist (BAY60-6583) reversed the anti-fibrotic effects of dexmedetomidine. |
Bleomycin mouse model, TGF-β-induced myofibroblast model in vitro, MAPK pathway assays, BAY60-6583 agonist pharmacologic rescue |
Respiratory research |
Medium |
37644529
|
| 2026 |
ADORA2B activates the cAMP/PKA/PLB/SERCA2α signaling axis in cardiomyocytes; LA treatment activates ADORA2B leading to PKA-mediated phosphorylation of phospholamban, enhanced SERCA2α activity, and prevention of calcium overload; ADORA2B antagonist (MRS1754) partially reversed these effects. |
H9C2 cardiomyocyte H/R model, network pharmacology, ADORA2B antagonist (MRS1754), PKA/PLB/SERCA2α protein phosphorylation and expression assays, LDH/cTnI release assays |
Current issues in molecular biology |
Medium |
41751389
|