scholarly journals In vivo multimodal imaging of adenosine A1 receptors in neuroinflammation after experimental stroke

Theranostics ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 410-425
Author(s):  
Ana Joya ◽  
María Ardaya ◽  
Alejandro Montilla ◽  
Maider Garbizu ◽  
Sandra Plaza-García ◽  
...  
Keyword(s):  
Multimodal Imaging ◽  
Experimental Stroke ◽  
Adenosine A1 Receptors ◽  
Adenosine A1

N-0861 selectively antagonizes adenosine A1 receptors in vivo

1992 ◽  
Vol 216 (1) ◽  
pp. 9-16 ◽  
Author(s):  
Richard J. Barrett ◽  
David A. Droppleman ◽  
Kathryn F. Wright
Keyword(s):  
Adenosine A1 Receptors ◽  
Adenosine A1

In vivo imaging of adenosine A1 receptors in the human brain with [18F]CPFPX and positron emission tomography

NeuroImage ◽  
2003 ◽  
Vol 19 (4) ◽  
pp. 1760-1769 ◽  
Author(s):  
Andreas Bauer ◽  
Marcus H Holschbach ◽  
Philipp T Meyer ◽  
Christian Boy ◽  
Hans Herzog ◽  
...  
Keyword(s):  
Positron Emission Tomography ◽  
Human Brain ◽  
In Vivo Imaging ◽  
Emission Tomography ◽  
Adenosine A1 Receptors ◽  
Positron Emission ◽  
Adenosine A1

scholarly journals Multimodal Imaging with NanoGd Reveals Spatiotemporal Features of Neuroinflammation after Experimental Stroke

2021 ◽  
pp. 2101433
Author(s):  
Violaine Hubert ◽  
Ines Hristovska ◽  
Szilvia Karpati ◽  
Sarah Benkeder ◽  
Arindam Dey ◽  
...  
Keyword(s):  
Multimodal Imaging ◽  
Experimental Stroke ◽  
Spatiotemporal Features

Effect of dexamethasone on the expression of MMPs, adenosine A1 receptors and NFKB by human trabecular meshwork cells

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Normie Aida Mohd Nasir ◽  
Renu Agarwal ◽  
Anna Krasilnikova ◽  
Siti Hamimah Sheikh Abdul Kadir ◽  
Igor Iezhitsa
Keyword(s):  
Extracellular Matrix ◽  
Western Blot ◽  
Trabecular Meshwork ◽  
Culture Media ◽  
Smooth Muscle Actin ◽  
Adenosine A1 Receptors ◽  
Trabecular Meshwork Cells ◽  
Aqueous Humor Dynamics ◽  
Nfkb Activation ◽  
Adenosine A1

AbstractObjectivesSteroid-induced ocular hypertension and glaucoma are associated with extracellular matrix remodeling at the trabecular meshwork (TM) of the eye due to reduced secretion of matrix metalloproteinases (MMPs), a family of enzymes regulating extracellular matrix proteolysis. Several biological functions of steroids are known to involve regulation of adenosine A1 receptors (A1AR) and nuclear factor kappa B (NFKB). Since MMPs expression in TM has been shown to be regulated by A1AR as well as transcription factors, it is likely that dexamethasone-induced changes in aqueous humor dynamics involve reduced MMP and A1AR expression and reduced NFKB activation. Hence, the current study investigated the association of dexamethasone-induced reduction in MMP secretion with reduced NFKB activation and A1AR expression.MethodsHuman trabecular meshwork cells (HTMCs) were characterized by estimating myocilin and alpha smooth muscle actin expression and then were treated with dexamethasone 100 nM for 2, 5 and 7 days. The MMP secretion was estimated in culture media using Western blot. Immunocytochemistry (ICC) and ELISA were done to investigate the effect of dexamethasone on NFKB phosphorylation. A1AR expression in HTMCs was determined using Western blot and ELISA.ResultsDexamethasone caused a significant reduction in both MMP-2 and -9 expression compared to untreated group after five and seven days but not after two days of culture. Significantly reduced phosphorylated NFKB and A1AR protein levels were detected in dexamethasone treated compared to vehicle treated HTMCs after five days of culture.ConclusionsDexamethasone reduces MMP-2 and -9 secretion by HTMCs and this effect of dexamethasone is associated with reduced NFKB phosphorylation and A1AR expression.

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