Abstract
Sepsis is a generalized infection accompanied by response of the body that manifests in a clinical and laboratory syndrome, namely, in the systemic inflammatory response syndrome (SIRS) from the organism to the infection. Although sepsis is a widespread and life-threatening disease, the assortment of drugs for its treatment is mostly limited by antibiotics. Therefore, the search for new cellular targets for drug therapy of sepsis is an urgent task of modern medicine and pharmacology. One of the most promising targets is the adenosine A2A receptor (A2AAR). The activation of this receptor, which is mediated by extracellular adenosine, manifests in almost all types of immune cells (lymphocytes, monocytes, macrophages, and dendritic cells) and results in reducing the severity of inflammation and reperfusion injury in various tissues. The activation of adenosine A2A receptor inhibits the proliferation of T cells and production of proinflammatory cytokines, which contributes to the activation of the synthesis of anti-inflammatory cytokines, thereby suppressing the systemic response. For this reason, various selective A2AAR agonists and antagonists may be considered to be drug candidates for sepsis pharmacotherapy. Nevertheless, they remain only efficient ligands and objects of pre-clinical and clinical trials. This review examines the molecular mechanisms of inflammatory response in sepsis and the structure and functions of A2AAR and its role in the pathogenesis of sepsis, as well as examples of using agonists and antagonists of this receptor for the treatment of SIRS and sepsis.
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Abbreviations
- MOF:
-
multiple organ failure
- 5-LO:
-
5-lipoxigenase
- A2AAR:
-
adenosine A2A receptor
- AC:
-
adenylate cyclase
- AP-1:
-
activator protein 1
- AR:
-
adenosine receptor
- CD:
-
cluster of differentiation (of lymphocytes)
- CDC42:
-
cell division control protein 42 homolog
- CEBPβ:
-
CCAAT-enhancer-binding protein
- beta-COX-2:
-
cycloxygenase of type 2
- CREB1:
-
cAMP responsive element binding protein 1
- CTLA-4:
-
cytotoxic T-lymphocyte-associated antigen 4
- CXCL:
-
chemokine (C-X-C motif) ligand 1
- eNOS:
-
endothelial NO synthase
- GCSF:
-
granulocyte colony-stimulating factor
- GPCR:
-
G-protein-coupled receptor
- ICAM-1:
-
intercellular adhesion molecule 1
- IFN:
-
interferon
- IL:
-
interleukin
- iNOS:
-
inducible NO synthase
- IP3:
-
inositol 3,4,5-triphosphate
- MAPK:
-
mitogen-activated protein kinase
- MCSF:
-
macrophage colony-stimulating factor
- MOF:
-
multiple organ failure
- NF-κB:
-
nuclear factor κB
- NOS:
-
NO synthase
- PAF:
-
platelet activating factor
- PAI-1:
-
plasminogen activator inhibitor-1
- PDZ-GEF1:
-
guanine nucleotide exchange factor containing PDZ-domain
- PGE2:
-
prostaglandin E2
- PI3K:
-
phosphoinositide 3-kinase
- PIP2:
-
phosphatidylinositol 4,5-diphosphate
- PKA:
-
protein kinase A
- PKB (or Akt):
-
protein kinase B
- PKC-zeta:
-
protein kinase С-zeta
- SIRS:
-
systemic inflammatory response syndrome
- SUMO-1:
-
small ubiquitin-related modifier 1
- TF:
-
tissue factor III (thromboplastin)
- TGF-β:
-
transforming growth factor beta
- TLRs:
-
Toll-like receptors
- TNF-α:
-
tumor necrosis factor α
- TRAX:
-
translin-associated factor X
- USP4:
-
ubiquitin specific protease 4
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Original Russian Text © K.V. Sivak, A.V. Vasin, V.V. Egorov, V.B. Tsevtkov, N.N. Kuzmich, V.A. Savina, O.I. Kiselev, 2016, published in Molekulyarnaya Biologiya, 2016, Vol. 50, No. 2, pp. 231–245.
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Sivak, K.V., Vasin, A.V., Egorov, V.V. et al. Adenosine A2A receptor as a drug target for treatment of sepsis. Mol Biol 50, 200–212 (2016). https://doi.org/10.1134/S0026893316020230
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DOI: https://doi.org/10.1134/S0026893316020230