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                                    Abbreviated name: MAdCAM-1
                                 
                            
                            
                               
                                                                Synonyms: addressin | MAdCAM1
                                 
                                                         
                            
                            
                            
                                Compound class: 
                                                            Endogenous peptide in human, mouse or rat
                                 
                                
                                    
                                        Comment: MAdCAM-1 is an extracellular immunoglobulin-like peptide expressed on endothelial cells of intestinal lymphoid tissue [5,7], where it plays a role in gut immune surveillance. It is the ligand for homing receptors (e.g. α4β7 and α4β1 integrins, and L-selectin) on lymphocytes and it acts to direct leukocytes into mucosal and inflamed tissues. The α4β7/MAdCAM-1 interaction is gut-specific. MAdCAM-1 is being investigated as a drug target with potential for management of inflammatory bowel conditions [1,3,6,9]. It has also been identified as a mechanistic target that regulates gut dysbiosis during immune checkpoint blockade cancer treatment [2,4]. 
                            
                                The peptide details we provide are for the α isoform, which forms from the longest and predominant transcript. Soluble MAdCAM-1 can be detected in serum. 
                                    Species: Human
                                 
                            
                            
                          
                                
                                    
                                
                          
                                   
                                   
                                  
                                    
                                    
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| Bioactivity Comments | 
| MAdCAM-1 expression is elevated in intestinal biopsies from experimental models of colitis and from patients with Crohn's disease and ulcerative colitis. | 
| Selectivity at ligand targets | ||||||||||||||||||||||||||||||||||
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