scholarly journals Resolvin D5 Modulates Th17/Treg Cell Differentiation and Suppresses Osteoclastogenesis.

Author(s):  
Hirotaka Yamada ◽  
Jun Saegusa ◽  
Sho Sendo ◽  
Yo Ueda ◽  
Takaichi Okano ◽  
...  

Abstract Resolvins, are specialized pro-resolving mediators (SPMs) derived from n-3 polyunsaturated fatty acids. They contribute actively to the resolution of inflammation, but little is known concerning their role in chronic inflammation, such as in rheumatoid arthritis (RA). Here, we performed lipid mediator (LM) profiling in tissues from the paws of SKG arthritic mice using lipid chromatography (LC) /mass spectrometry (MS) /MS-based LM metabololipidomics. We found elevated levels of SPMs including resolvin D5 (RvD5) in these tissues. Moreover, RvD5 levels were significantly correlated with arthritis disease activity. From experiments to assess the role of RvD5 in the pathology of RA, we concluded that RvD5 suppressed Th17 cell differentiation and facilitated regulatory T cell differentiation, as well as inhibiting CD4+ T cell proliferation. Furthermore, RvD5 attenuated osteoclast (OC) differentiation and interfered with osteoclastogenesis. Targeting the resolution of inflammation could be promising as a novel treatment for RA.

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Hirotaka Yamada ◽  
Jun Saegusa ◽  
Sho Sendo ◽  
Yo Ueda ◽  
Takaichi Okano ◽  
...  

AbstractResolvins, are specialized pro-resolving mediators (SPMs) derived from n-3 polyunsaturated fatty acids. They contribute actively to the resolution of inflammation, but little is known concerning their role in chronic inflammation, such as in rheumatoid arthritis (RA). Here, we performed lipid mediator (LM) profiling in tissues from the paws of SKG arthritic mice using lipid chromatography (LC)/mass spectrometry (MS)/MS-based LM metabololipidomics. We found elevated levels of SPMs including resolvin D5 (RvD5) in these tissues. Moreover, RvD5 levels were significantly correlated with arthritis disease activity. From experiments to assess the role of RvD5 in the pathology of RA, we concluded that RvD5 suppressed Th17 cell differentiation and facilitated regulatory T cell differentiation, as well as inhibiting CD4+ T cell proliferation. Furthermore, RvD5 attenuated osteoclast differentiation and interfered with osteoclastogenesis. Targeting the resolution of inflammation could be promising as a novel treatment for RA.


2001 ◽  
Vol 120 (5) ◽  
pp. A517-A517
Author(s):  
A MIZOGUCHI ◽  
E MIZOGUCHI ◽  
Y DEJONG ◽  
H TAKEDATSU ◽  
F PREFFER ◽  
...  

2018 ◽  
Vol 115 (18) ◽  
pp. 4749-4754 ◽  
Author(s):  
Eunseon Ahn ◽  
Koichi Araki ◽  
Masao Hashimoto ◽  
Weiyan Li ◽  
James L. Riley ◽  
...  

PD-1 (programmed cell death-1) is the central inhibitory receptor regulating CD8 T cell exhaustion during chronic viral infection and cancer. Interestingly, PD-1 is also expressed transiently by activated CD8 T cells during acute viral infection, but the role of PD-1 in modulating T cell effector differentiation and function is not well defined. To address this question, we examined the expression kinetics and role of PD-1 during acute lymphocytic choriomeningitis virus (LCMV) infection of mice. PD-1 was rapidly up-regulated in vivo upon activation of naive virus-specific CD8 T cells within 24 h after LCMV infection and in less than 4 h after peptide injection, well before any cell division had occurred. This rapid PD-1 expression by CD8 T cells was driven predominantly by antigen receptor signaling since infection with a LCMV strain with a mutation in the CD8 T cell epitope did not result in the increase of PD-1 on antigen-specific CD8 T cells. Blockade of the PD-1 pathway using anti–PD-L1 or anti–PD-1 antibodies during the early phase of acute LCMV infection increased mTOR signaling and granzyme B expression in virus-specific CD8 T cells and resulted in faster clearance of the infection. These results show that PD-1 plays an inhibitory role during the naive-to-effector CD8 T cell transition and that the PD-1 pathway can also be modulated at this stage of T cell differentiation. These findings have implications for developing therapeutic vaccination strategies in combination with PD-1 blockade.


2022 ◽  
Vol 103 ◽  
pp. 108450
Author(s):  
Guang Wang ◽  
Zehong Su ◽  
Hui Li ◽  
Li Xiao ◽  
Chengyue Li ◽  
...  

2017 ◽  
Vol 32 (suppl_3) ◽  
pp. iii366-iii366
Author(s):  
Matthias Schaier ◽  
Angèle Leick ◽  
Florian Kälble ◽  
Claudia Sommerer ◽  
Martin Zeier ◽  
...  

2004 ◽  
Vol 3 (7-8) ◽  
pp. 613
Author(s):  
Georg Wick ◽  
Miriam Erlacher ◽  
Ilona Stec ◽  
Michael Knoflach ◽  
Günther Böck ◽  
...  

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