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1.	Chodaczek, Grzegorz, et al. (författare) The effect of Toll-like receptor stimulation on the motility of regulatory T cells 2021 Ingår i: Journal of Autoimmunity. - : Elsevier. - 0896-8411 .- 1095-9157. ; 116 Tidskriftsartikel (refereegranskat)abstract Regulatory T cells (Tregs) have suppressive functions and play an important role in controlling inflammation and autoimmunity. The migratory capacity of Tregs determines their location and their location determines whether they inhibit the priming of naïve lymphocytes in lymphoid tissues or the effector phase of immune responses at inflamed sites. Tregs generated or expanded in vitro are currently being tested in clinics for the treatment of autoimmune disorders, however, little is known about the factors controlling their migration towards therapeutically relevant locations. In this study, we have modulated Treg dynamics using Toll-like receptor (TLR) agonists. Dynamic imaging with confocal and two-photon microscopy revealed that Tregs generated in vitro and stimulated with P3C (a TLR2 agonist) but not with R848 (a TLR7 agonist) or LPS (a TLR4 agonist) showed enhanced cell migration within splenic white pulp or draining lymph node when transferred into mice intravenously or into the footpad, respectively. In summary, our data demonstrate that Tregs are more motile in response to direct TLR stimulation in particular towards TLR2 signals. This may have implications for efficient clinical Treg induction protocols.

Chodaczek, Grzegorz, et al. (författare)
The effect of Toll-like receptor stimulation on the motility of regulatory T cells
2021
Ingår i: Journal of Autoimmunity. - : Elsevier. - 0896-8411 .- 1095-9157. ; 116
Tidskriftsartikel (refereegranskat)abstract
- Regulatory T cells (Tregs) have suppressive functions and play an important role in controlling inflammation and autoimmunity. The migratory capacity of Tregs determines their location and their location determines whether they inhibit the priming of naïve lymphocytes in lymphoid tissues or the effector phase of immune responses at inflamed sites. Tregs generated or expanded in vitro are currently being tested in clinics for the treatment of autoimmune disorders, however, little is known about the factors controlling their migration towards therapeutically relevant locations. In this study, we have modulated Treg dynamics using Toll-like receptor (TLR) agonists. Dynamic imaging with confocal and two-photon microscopy revealed that Tregs generated in vitro and stimulated with P3C (a TLR2 agonist) but not with R848 (a TLR7 agonist) or LPS (a TLR4 agonist) showed enhanced cell migration within splenic white pulp or draining lymph node when transferred into mice intravenously or into the footpad, respectively. In summary, our data demonstrate that Tregs are more motile in response to direct TLR stimulation in particular towards TLR2 signals. This may have implications for efficient clinical Treg induction protocols.

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