PMID- 29863666 OWN - NLM STAT- MEDLINE DCOM- 20180730 LR - 20200518 IS - 1940-087X (Electronic) IS - 1940-087X (Linking) IP - 135 DP - 2018 May 18 TI - Development and Functional Characterization of Murine Tolerogenic Dendritic Cells. LID - 10.3791/57637 [doi] LID - 57637 AB - The immune system operates by maintaining a tight balance between coordinating responses against foreign antigens and maintaining an unresponsive state against self-antigens as well as antigens derived from commensal organisms. The disruption of this immune homeostasis can lead to chronic inflammation and to the development of autoimmunity. Dendritic cells (DCs) are the professional antigen-presenting cells of the innate immune system involved in activating naive T cells to initiate immune responses against foreign antigens. However, DCs can also be differentiated into TolDCs that act to maintain and promote T cell tolerance and to suppress effector cells contributing to the development of either autoimmune or chronic inflammation conditions. The recent advancement in our understanding of TolDCs suggests that DC tolerance can be achieved by modulating their differentiation conditions. This phenomenon has led to tremendous growth in developing TolDC therapies for numerous immune disorders caused due to break in immune tolerance. Successful studies in preclinical autoimmunity murine models have further validated the immunotherapeutic utility of TolDCs in the treatment of autoimmune disorders. Today, TolDCs have become a promising immunotherapeutic tool in the clinic for reinstating immune tolerance in various immune disorders by targeting pathogenic autoimmune responses while leaving protective immunity intact. Although an array of strategies has been proposed by multiple labs to induce TolDCs, there is no consistency in characterizing the cellular and functional phenotype of these cells. This protocol provides a step-by-step guide for the development of bone marrow-derived DCs in large numbers, a unique method used to differentiate them into TolDCs with a synthetic triterpenoid 2-cyano-3,12-dioxooleana-1,9-dien-28-oic acid-difluoro-propyl-amide (CDDO-DFPA), and the techniques used to confirm their phenotype, including analyses of essential molecular signatures of TolDCs. Finally, we show a method to assess TolDC function by testing their immunosuppressive response in vitro and in vivo in a preclinical model of multiple sclerosis. FAU - Wei, Hsi-Ju AU - Wei HJ AD - Department of Biochemistry, School of Medicine, Case Western Reserve University. FAU - Letterio, John J AU - Letterio JJ AD - Department of Pediatrics, Division of Pediatric Hematology/Oncology, Case Western Reserve University; Angie Fowler Cancer Institute, Rainbow Babies & Children's Hospital, University Hospitals, Cleveland. FAU - Pareek, Tej K AU - Pareek TK AD - Department of Pediatrics, Division of Pediatric Hematology/Oncology, Case Western Reserve University; Angie Fowler Cancer Institute, Rainbow Babies & Children's Hospital, University Hospitals, Cleveland; tkp5@case.edu. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, Non-P.H.S. PT - Video-Audio Media DEP - 20180518 PL - United States TA - J Vis Exp JT - Journal of visualized experiments : JoVE JID - 101313252 SB - IM MH - Animals MH - Dendritic Cells/*immunology MH - Immune Tolerance/*genetics MH - Mice PMC - PMC6101271 EDAT- 2018/06/05 06:00 MHDA- 2018/07/31 06:00 PMCR- 2020/05/18 CRDT- 2018/06/05 06:00 PHST- 2018/06/05 06:00 [entrez] PHST- 2018/06/05 06:00 [pubmed] PHST- 2018/07/31 06:00 [medline] PHST- 2020/05/18 00:00 [pmc-release] AID - 57637 [pii] AID - 10.3791/57637 [doi] PST - epublish SO - J Vis Exp. 2018 May 18;(135):57637. doi: 10.3791/57637.