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PLA2R1 is increased in the airway epithelium in asthma, and serves as a regulator of airway hyperresponsiveness, airway permeability, antigen sensitization, and airway inflammation.
Study showed that CTLD1-2 as well as the FNII domain of PLA2R were responsible for binding to collagen I and collagen-dependent migration in both mouse and human PLA2R.
PLA2R might play a pathogenic role in myocardial infarction of PLA2R-deficient mice, through impaired healing of the infarcted region.
PLA2R deficiency increased sPLA2 (show PLA2G2A Proteins)-IB and -X levels in the lung through their impaired clearance from the lung, leading to exaggeration of lung inflammation induced by OVA treatment in a murine model.
Receptor for secretory phospholipase A2 (sPLA2). Acts as a receptor for phosholipases sPLA2-IB/PLA2G1B, sPLA2-X/PLA2G10 and, with lower affinity, sPLA2-IIA/PLA2G2A. Also able to bind to snake PA2-like toxins. Although its precise function remains unclear, binding of sPLA2 to its receptor participates in both positive and negative regulation of sPLA2 functions as well as clearance of sPLA2. Binding of sPLA2-IB/PLA2G1B induces various effects depending on the cell type, such as activation of the mitogen-activated protein kinase (MAPK) cascade to induce cell proliferation, the production of lipid mediators, selective release of arachidonic acid in bone marrow-derived mast cells. In neutrophils, binding of sPLA2-IB/PLA2G1B can activate p38 MAPK to stimulate elastase release and cell adhesion. May be involved in responses in proinflammatory cytokine productions during endotoxic shock. Also has endocytic properties and rapidly internalizes sPLA2 ligands, which is particularly important for the clearance of extracellular sPLA2s to protect their potent enzymatic activities. The soluble secretory phospholipase A2 receptor form is circulating and acts as a negative regulator of sPLA2 functions by blocking the biological functions of sPLA2-IB/PLA2G1B and sPLA2-X/PLA2G10.
secretory phospholipase A2 receptor
, yolk sac IgY receptor
, phospholipase A2 receptor 1, 180kDa
, secretory phospholipase A2 receptor-like
, 180 kDa secretory phospholipase A2 receptor
, M-type receptor
, PLA2-I receptor
, phospholipase A2, group IB, pancreas, receptor
, mannose receptor, C type 2