{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Xu H"],"funding":["NIAID NIH HHS","NHLBI NIH HHS"],"pagination":["6690-5"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC2373348"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["105(18)"],"pubmed_abstract":["Indoleamine 2,3 dioxygenase (IDO) has emerged as an important mediator of immune tolerance via inhibition of Th1 responses. However, the role of IDO in antigen-induced tolerance or allergic inflammation in the airways that is regulated by Th2 responses has not been elucidated. By using IDO(-/-) mice, we found no impairment of airway tolerance, but, surprisingly, absence of IDO provided significant relief from establishment of allergic airways disease, as evident from attenuated Th2 cytokine production, airway inflammation, mucus secretion, airway hyperresponsiveness, and serum ovalbumin-specific IgE. Myeloid dendritic cells isolated from lung-draining lymph nodes of mice immunized for either Th1 or Th2 response revealed fewer mature dendritic cells in the lymph nodes of IDO(-/-) mice. However, the net functional impact of IDO deficiency on antigen-induced responses was more remarkable in the Th2 model than in the Th1 model. Collectively, these data suggest that IDO is not required for the induction of immune tolerance in the airways but plays a role in promoting Th2-mediated allergic airway inflammation via unique effects on lung dendritic cells."],"journal":["Proceedings of the National Academy of Sciences of the United States of America"],"pubmed_title":["Indoleamine 2,3-dioxygenase in lung dendritic cells promotes Th2 responses and allergic inflammation."],"pmcid":["PMC2373348"],"funding_grant_id":["AI048927","P50 HL084932","HL 060207","HL 077430","R01 AI048927","R01 HL060207","R01 HL077430","HL 084932"],"pubmed_authors":["Irvin CG","Oriss TB","Melgert BN","Henry AC","Chen L","Mellor AL","Ray A","Munn DH","Ray P","Xu H","Fei M"],"additional_accession":[]},"is_claimable":false,"name":"Indoleamine 2,3-dioxygenase in lung dendritic cells promotes Th2 responses and allergic inflammation.","description":"Indoleamine 2,3 dioxygenase (IDO) has emerged as an important mediator of immune tolerance via inhibition of Th1 responses. However, the role of IDO in antigen-induced tolerance or allergic inflammation in the airways that is regulated by Th2 responses has not been elucidated. By using IDO(-/-) mice, we found no impairment of airway tolerance, but, surprisingly, absence of IDO provided significant relief from establishment of allergic airways disease, as evident from attenuated Th2 cytokine production, airway inflammation, mucus secretion, airway hyperresponsiveness, and serum ovalbumin-specific IgE. Myeloid dendritic cells isolated from lung-draining lymph nodes of mice immunized for either Th1 or Th2 response revealed fewer mature dendritic cells in the lymph nodes of IDO(-/-) mice. However, the net functional impact of IDO deficiency on antigen-induced responses was more remarkable in the Th2 model than in the Th1 model. Collectively, these data suggest that IDO is not required for the induction of immune tolerance in the airways but plays a role in promoting Th2-mediated allergic airway inflammation via unique effects on lung dendritic cells.","dates":{"release":"2008-01-01T00:00:00Z","publication":"2008 May","modification":"2021-02-21T01:43:45Z","creation":"2019-03-27T02:44:59Z"},"accession":"S-EPMC2373348","cross_references":{"pubmed":["18436652"],"doi":["10.1073/pnas.0708809105"]}}