RGD Reference Report - Adenosine A2A receptor activation and macrophage-mediated experimental glomerulonephritis. - Rat Genome Database

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Adenosine A2A receptor activation and macrophage-mediated experimental glomerulonephritis.

Authors: Garcia, GE  Truong, LD  Li, P  Zhang, P  Du, J  Chen, JF  Feng, L 
Citation: Garcia GE, etal., FASEB J. 2008 Feb;22(2):445-54. Epub 2007 Sep 26.
RGD ID: 2307059
Pubmed: (View Article at PubMed) PMID:17898087
DOI: Full-text: DOI:10.1096/fj.07-8430com

In immune-induced inflammation, leukocytes are key mediators of tissue damage. Since A(2A) adenosine receptors (A(2A)Rs) are endogenous suppressors of inflammation, we examined cellular and molecular mechanisms of kidney damage to determine if selective activation of A(2A)R would suppress inflammation in a rat model of glomerulonephritis. Activation of A(2A)R reduced the degree of kidney injury in both the acute inflammatory phase and the progressive phase of glomerulonephritis. This protection against acute and chronic inflammation was associated with suppression of the glomerular expression of the MDC/CCL22 chemokine and down-regulation of MIP-1alpha/CCL3, RANTES/CCL5, MIP-1beta/CCL4, and MCP-1/CCL2 chemokines. The expression of anti-inflammatory cytokines, interluekin (IL)-4 and IL-10, also increased. The mechanism for these anti-inflammatory responses to the A(2A)R agonist was suppression of macrophages function. A(2A)R expression was increased in macrophages, macrophage-derived chemokines were reduced in response to the A(2A)R agonist, and chemokines not expressed in macrophages did not respond to A(2A)R activation. Thus, activation of the A(2A)R on macrophages inhibits immune-associated inflammation. In glomerulonephritis, A(2A)R activation modulates inflammation and tissue damage even in the progressive phase of glomerulonephritis. Accordingly, pharmacological activation of A(2A)R could be developed into a novel treatment for glomerulonephritis and other macrophage-related inflammatory diseases.

Annotation

Disease Annotations    

Objects Annotated

Genes (Rattus norvegicus)
Ccl2  (C-C motif chemokine ligand 2)
Ccl3  (C-C motif chemokine ligand 3)
Ccl4  (C-C motif chemokine ligand 4)
Ccl5  (C-C motif chemokine ligand 5)
Il4  (interleukin 4)

Genes (Mus musculus)
Ccl2  (chemokine (C-C motif) ligand 2)
Ccl3  (chemokine (C-C motif) ligand 3)
Ccl4  (chemokine (C-C motif) ligand 4)
Ccl5  (chemokine (C-C motif) ligand 5)
Il4  (interleukin 4)

Genes (Homo sapiens)
CCL2  (C-C motif chemokine ligand 2)
CCL3  (C-C motif chemokine ligand 3)
CCL4  (C-C motif chemokine ligand 4)
CCL5  (C-C motif chemokine ligand 5)
IL4  (interleukin 4)

Objects referenced in this article
Gene CCL13 C-C motif chemokine ligand 13 Homo sapiens

Additional Information