{"type": "root", "children": [{"type": "p", "children": [{"type": "t", "text": "\nStudies collectively reveal that the protein in question plays a central role in controlling the extracellular balance of nucleotides by converting AMP into adenosine. This ecto‐enzyme, expressed on a variety of cells such as regulatory T lymphocytes, other T cell subsets, endothelial cells, and even secreted on exosomes, generates adenosine that then curbs inflammation and limits immune cell activation. In doing so, it contributes to potent immunosuppressive circuits that restrain effector T cell proliferation, modulate cytokine release, and regulate lymphocyte trafficking across vascular and lymphatic barriers. This regulatory mechanism is critical for maintaining tolerance, dampening autoimmunity, and controlling inflammatory responses during acute injury or stress."}, {"type": "fg", "children": [{"type": "fg_fs", "start_ref": "1", "end_ref": "20"}]}, {"type": "t", "text": "\n"}]}, {"type": "t", "text": "\n\n"}, {"type": "p", "children": [{"type": "t", "text": "\nIn addition to its homeostatic immunoregulatory functions, this enzyme is pivotal for tissue protection and repair. Enhanced local adenosine production mediates cytoprotective and anti‐inflammatory effects during ischemia–reperfusion injury in organs such as the lung, liver, kidney, and even the heart. These protective mechanisms involve not only the dampening of inflammatory mediator release but also the modulation of vascular permeability and leukocyte adhesion. Moreover, by influencing adenosine receptor signaling (notably via A₂A and A₂B receptors), the enzyme shapes the balance between tissue damage and repair, thereby also altering the function of antigen‐presenting cells, macrophage polarization, and even the synaptic neuromodulation in the central nervous system."}, {"type": "fg", "children": [{"type": "fg_fs", "start_ref": "21", "end_ref": "30"}]}, {"type": "t", "text": "\n"}]}, {"type": "t", "text": "\n\n"}, {"type": "p", "children": [{"type": "t", "text": "\nFurthermore, emerging evidence implicates this adenosine‐generating enzyme in oncogenesis and neural as well as vascular regulation. In the tumor microenvironment, its activity fosters immune escape by impairing anti‐tumor T cell and natural killer cell functions, thereby promoting tumor progression and metastasis. Blockade of this enzyme enhances anti‐tumor immunity and improves responses to immunotherapeutic interventions. 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