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Development and Functional Characterization of Murine Tolerogenic Dendritic Cells
Published on: May 18, 2018
Maturation-resistant dendritic cells ameliorate experimental autoimmune uveoretinitis
Keunhee Oh1, Yon Su Kim, Dong-Sup Lee
1Laboratory of Immunology, Transplantation Research Institute, Seoul National University College of Medicine, Seoul 110-799, Korea.
Immune Network
|February 21, 2012
Summary
Pretreating with fixed immature dendritic cells (DCs) ameliorated experimental autoimmune uveoretinitis (EAU) by inhibiting CD4(+) T cell activation. This offers a potential treatment for autoimmune diseases and transplant rejection.
Area of Science:
- Immunology
- Ophthalmology
Background:
- Endogenous uveitis is a chronic inflammatory eye condition leading to blindness.
- Experimental autoimmune uveoretinitis (EAU) models human uveitis, characterized by CD4(+) T-cell mediated immune responses.
- Dendritic cells (DCs) are key in activating T cells, making them targets for immune regulation.
Purpose of the Study:
- To investigate the therapeutic potential of fixed immature dendritic cells (iDCs) in controlling autoimmune responses in EAU.
- To determine if fixed iDCs can inhibit the activation and differentiation of pathogenic CD4(+) T cells.
Main Methods:
- EAU was induced using human interphotoreceptor retinoid-binding protein (IRBP) peptide(1-20).
- Bone marrow-derived dendritic cells were differentiated and fixed with paraformaldehyde to maintain an immature state.
- Animals were pretreated with fixed immature DCs or fixed mature DCs before EAU induction.
Main Results:
- Pretreatment with fixed immature DCs significantly ameliorated EAU progression.
- Fixed immature DCs inhibited the activation and differentiation of uveitogenic CD4(+) T cells.
- Fixed mature DCs did not show a similar therapeutic effect.
Conclusions:
- Fixed immature bone marrow-derived dendritic cells (iBMDCs) represent a promising therapeutic strategy for autoimmune diseases like uveitis.
- This approach could also be beneficial in preventing transplantation rejection by modulating immune responses.
