Abstract:
:Dendritic cells (DCs) play a central role in the establishment of tolerance/immunity, because they activate naïve T cells (TCs). Therefore, the pharmacological modulation of DCs has become a major field of interest in immunology. A large body of literature has arisen from the studies of DC biology during immunosuppressive drug treatment. Immunosuppressive drugs have improved the therapeutic management of allograft organ transplantation and autoimmune diseases, significantly. There is now strong evidence that, DCs might be the key for antigen specific tolerance induction. Recently, the existence of a population of DCs that migrate to the regional lymph node in the steady state has been identified. Such steady state immature migrating DCs are loaded with tissue antigens and deliver self-antigens towards secondary lymphatic organs and might educate TCs towards self-tolerance. Latest experimental data from rodent solid organ allo-transplantation supports the idea, that DCs might even become regulatory DCs towards foreign antigen specific tolerance induction. Apparently, regulatory donor DCs invade host secondary lymphatic organs where they might eventually educate host TCs towards foreign antigen specific tolerance. Seemingly, it depends on the DC maturation state whether pharmacologically modulated DCs induce antigen specific long-term tolerance in allo-transplantation solid organ transplantation. Several authors reported a positive self-limiting feedback loop between tolerogenic DCs and allo-specific regulatory TCs. Thus, the DC-TC network appears as an exceptionally good target for pharmacological manipulations. Here we review how immunosuppressive agents interfere with DC maturation, migration and homeostasis. We are developing a rational to select different drugs for the generation of regulatory DCs, for allo-transplantation clinical settings.
journal_name
Curr Med Chemjournal_title
Current medicinal chemistryauthors
Schlichting CL,Schareck WD,Nickel T,Weis Mdoi
10.2174/0929867054546627subject
Has Abstractpub_date
2005-01-01 00:00:00pages
1921-30issue
16eissn
0929-8673issn
1875-533Xjournal_volume
12pub_type
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