The inhibitory role of intracellular free zinc in the regulation of Arg-1 expression in interleukin-4-induced activation of M2 microglia

Metallomics ◽  
2018 ◽  
Vol 10 (10) ◽  
pp. 1501-1509 ◽  
Author(s):  
Takaaki Aratake ◽  
Youichirou Higashi ◽  
Yusuke Ueba ◽  
Tomoya Hamada ◽  
Takahiro Shimizu ◽  
...  

Intracellular zinc plays an important role in neuroprotective M2-polarization of microglia.

2021 ◽  
Author(s):  
Zhi-Bin Ding ◽  
Qing-Xian Han ◽  
Li-Juan Song ◽  
Qing Wang ◽  
Guang-Yuan Han ◽  
...  

Abstract The inflammation and demyelination of the central nervous system (CNS) are mainly involved in multiple sclerosis (MS), in which the disorder of myelin regeneration leads to continual neurologic impairment. Fasudil, one of the ROCK inhibitors, has been shown protective functions in some models of demyelinating diseases. In this study, Fasudil treatment ameliorated the behavioral performance and myelin loss in CPZ-fed mice. Here, we demonstrated a new role of Fasudil, which triggered microglia to uptake myelin debris in both cell and animal experiments. This increased phagocytosis was associated with the polarization of M2 microglia. Furthermore, we found that Fasudil enhanced the expression of triggering receptor expressed on myeloid cells 2 (TREM2) and DNAX-activating protein of 12 kDa (DAP12), which regulated microglial phagocytosis and M2 polarization. The silence of TREM2 effectively blocked Fasudil-triggered phagocytic capacity, suggesting that Fasudil-triggered phagocytosis depends on TREM2 signaling pathway. Based on these evidences that TREM2 regulates microglial M2 polarization and phagocytosis, future studies targeted Fasudil as a therapy for demyelinating and neurodegenerative diseases are warranted.


2004 ◽  
Vol 47 (2) ◽  
pp. 91-96 ◽  
Author(s):  
Emil Rudolf ◽  
Miroslav Červinka

The role of intracellular free zinc and its chelation by TPEN (N,N,N’,N’-tetrakis(2–pyridylmethyl)ethylenediamine) was studied in Bowes human melanoma cells. The content of free Zn pools was determined by fluorescent probe Zinquin. Depletion of zinc triggered apoptosis confirmed by cell blebbing, changes in mitochondrial transmembrane potential and GSH levels, caspase-3 activation and nuclear fragmentation. Apoptosis was only partially prevented by cyclosporin A or N-acetylcystein, suggesting various independent but likely interrelated mechanisms participating in this process.


Circulation ◽  
1997 ◽  
Vol 96 (9) ◽  
pp. 3180-3191 ◽  
Author(s):  
Peter Carmeliet ◽  
Lieve Moons ◽  
Roger Lijnen ◽  
Stefaan Janssens ◽  
Florea Lupu ◽  
...  

2021 ◽  
Vol 14 (3) ◽  
pp. 443-453
Author(s):  
Mohammad Amin Jadidi Kouhbanani ◽  
Yasin Sadeghipour ◽  
Mina Sarani ◽  
Erfan Sefidgar ◽  
Saba Ilkhani ◽  
...  

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Zhenming Jiang ◽  
Yuxi Zhang ◽  
Xi Chen ◽  
Pingeng Wu ◽  
Dong Chen

An amendment to this paper has been published and can be accessed via the original article.


2021 ◽  
pp. 138830
Author(s):  
Baoliang Ma ◽  
Haohao Wang ◽  
Yujie Liu ◽  
Fang Wu ◽  
Xudong Zhu

Author(s):  
Susmit Mhatre ◽  
Nitisha Gurav ◽  
Mansi Shah ◽  
Vandana Patravale
Keyword(s):  

Gene ◽  
2021 ◽  
Vol 771 ◽  
pp. 145370
Author(s):  
Prajitha Mohandas Edathara ◽  
Shivakanth Chintalapally ◽  
Venkata Krishna Kanth Makani ◽  
Chitrakshi Pant ◽  
Suresh Yerramsetty ◽  
...  

Hypertension ◽  
1987 ◽  
Vol 10 (1) ◽  
pp. 61-66 ◽  
Author(s):  
I Antonipillai ◽  
J L Nadler ◽  
E C Robin ◽  
R Horton

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