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Beneficial effects of cannabinoids (CB) in a murine model of allergen-induced airway inflammation: Role of CB(1)/CB(2) receptors.
Immunobiology 216, 466-476 (2011)
The endocannabinoid system (ECS) consists of two cannabinoid (CB) receptors, namely CB(1) and CB(2) receptor, and their endogenous (endocannabinoids) and exogenous (cannabinoids, e.g. delta-9-tetrahydrocannabinol (THC)) ligands which bind to these receptors. Based on studies suggesting a role of THC and the ECS in inflammation, the objective of this study was to examine their involvement in type I hypersensitivity using a murine model of allergic airway inflammation. THC treatment of C57BL/6 wildtype mice dramatically reduced airway inflammation as determined by significantly reduced total cell counts in bronchoalveolar lavage (BAL). These effects were greatest when mice were treated during both, the sensitization and the challenge phase. Furthermore, systemic immune responses were significantly suppressed in mice which received THC during sensitization phase. To investigate a role of CB(1/2) receptors in this setting, we used pharmacological blockade of CB(1) and/or CB(2) receptors by the selective antagonists and moreover CB(1)/CB(2) receptor double-knockout mice (CB(1)(-/-)/CB(2)(-/-)) and found neither significant changes in the cell patterns in BAL nor in immunoglobulin levels as compared to wildtype mice. Our results indicate that the activation of the ECS by applying the agonist THC is involved in the development of type I allergies. However, CB(1)/CB(2) receptor-independent signalling seems likely in the observed results.
Impact Factor
Scopus SNIP
Web of Science
Times Cited
Times Cited
Scopus
Cited By
Cited By
Altmetric
3.586
1.085
9
17
Anmerkungen
Besondere Publikation
Auf Hompepage verbergern
Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Schlagwörter
Asthma; Cannabinoid receptors; Endocannabinoid system; THC; Inflammation
Sprache
englisch
Veröffentlichungsjahr
2011
Prepublished im Jahr
2010
HGF-Berichtsjahr
2010
ISSN (print) / ISBN
0171-2985
e-ISSN
1878-3279
Zeitschrift
Immunobiology : Experimental and Clinical
Quellenangaben
Band: 216,
Heft: 4,
Seiten: 466-476
Verlag
Urban & Fischer
Begutachtungsstatus
Peer reviewed
Institut(e)
Institute of Lung Health and Immunity (LHI)
Institute of Epidemiology (EPI)
Institute of Epidemiology (EPI)
POF Topic(s)
30202 - Environmental Health
PSP-Element(e)
G-521200-001
FE 73991
FE 73991
PubMed ID
21056512
Scopus ID
79952191254
Erfassungsdatum
2010-12-08