question: Is NOD1 activated in inflammation?
answer: Nod proteins fight off bacterial infections by stimulating proinflammatory signaling and cytokine networks and by inducing antimicrobial effectors, such as nitric oxide and antimicrobial peptides. NOD1 engagement generates an inflammatory response via activation of NFκB and MAPK pathways and several inflammatory disorders, such as Crohn's disease and asthma, are linked to genetic changes in either Nod1 or Nod2. Nod1 is also critically implicated in shaping adaptive immune responses towards bacterial-derived constituents. Together, Nod1 and Nod2 represent central players in the control of immune responses to bacterial infections and inflammation. Mice deficient for both Nod1 and Nod2 had attenuated inflammatory pathology, reduced levels of inflammatory cytokines, and increased colonization of the mucosal tissue