Development of a Selective Modulator of Aryl Hydrocarbon (Ah) Receptor Activity that Exhibits Anti-Inflammatory Properties
摘要:
The aryl hydrocarbon receptor (AHR) is a ligand-activated transcription factor that mediates the toxicity of 2,3,7,8-tetrachlorodibenzo-p-dioxin. However, the role of the AHR in normal physiology is still an area of intense investigation. For example, this receptor plays an important role in certain immune responses. We have previously determined that the AHR can mediate repression of acute-phase genes in the liver. For this observation to be therapeutically useful, selective activation of the AHR would likely be necessary. Recently, the selective estrogen receptor ligand WAY-169916 has also been shown to be a selective AHR ligand. WAY-169916 can efficiently repress cytokine-mediated acute-phase gene expression (e.g., SAAI) yet fail to mediate a dioxin response element-driven increase in transcriptional activity. The goals of this study were to structurally modify WAY-169916 to block binding to the estrogen receptor and increase its affinity for the AHR. A number of WAY-169916 derivatives were synthesized and subjected to characterization as AHR ligands. The substitution of a key hydroxy group for a methoxy group ablates binding to the estrogen receptor and increases its affinity for the AHR. The compound 1-allyl-7-trifluoromethyl-1H-indazol-3-yl]-4-methoxyphenol (SGA 360), in particular, exhibited essentially no AHR agonist activity yet was able to repress cytokine-mediated SAAI gene expression in Huh7 cells. SGA 360 was tested in a 12-O-tetradecanoylphorbol-13-acetate (TPA)-mediated ear inflammatory edema model using C57BL6/J and Ahr(-/-) mice. Our findings indicate that SGA 360 significantly inhibits TPA-mediated ear swelling and induction of a number of inflammatory genes (e.g., Saa3, Cox2, and Il6) in C57BL6/J mice. In contrast, SGA 360 had no effect on TPA-mediated ear swelling or inflammatory gene expression in Ahr(-/-) mice. Collectively, these results indicate that SGA 360 is a selective Ah receptor modulator (SAhRM) that exhibits anti-inflammatory properties in vivo.
Use of ER selective NF-kB inhibitors for the treatment of sepsis
申请人:Caggiano J. Thomas
公开号:US20050256132A1
公开(公告)日:2005-11-17
The present invention provides methods for treating sepsis, systemic inflammatory response syndrome, severe sepsis, septic shock, and multiple organ dysfunction syndrome by modulating NF-κB transcription with ligands that interact with the estrogen receptor, preferably in the absence of classic estrogenic activity. Other aspects of the invention relate to methods for treating sepsis, systemic inflammatory response syndrome, severe sepsis, septic shock, and multiple organ dysfunction syndrome that comprise administering to a patient suffering therefrom an effective amount of a compound of Formula I:
[EN] METHOD OF TREATING RHEUMATOID ARTHRITIS USING NF-kB INHIBITORS<br/>[FR] METHODE PERMETTANT DE TRAITER L'ARTHRITE RHUMATOIDE A L'AIDE D'INHIBITEURS DE NF-KB
申请人:WYETH CORP
公开号:WO2005039583A1
公开(公告)日:2005-05-06
The present invention concerns a method of treating rheumatoid arthritis by diagnosing that a person is in need of treatment for rheumatoid arthritis and administering a therapeutically effective amount of a ligand which modulates NF-kB transcription factor by interaction with estrogen receptor ER-α, estrogen receptor ER-β, or both ER-α and ER- β estrogen receptors with a substantial absence of creatine kinase stimulation. In certain embodiments, the administration is with a substantial absence of uterotropic activity.
Methods of treating rheumatoid arthritis using NF-kB inhibitors
申请人:Harnish Carl Douglas
公开号:US20050113405A1
公开(公告)日:2005-05-26
The present invention concerns a method of treating rheumatoid arthritis by diagnosing that a person is in need of treatment for rheumatoid arthritis and administering a therapeutically effective amount of a ligand which modulates NF-kB transcription factor by interaction with estrogen receptor ER-α, estrogen receptor ER-β, or both ER-α and ER-β estrogen receptors with a substantial absence of creatine kinase stimulation. In certain embodiments, the administration is with a substantial absence of uterotropic activity.
[EN] USE OF ESTROGEN RECEPTOR LIGANDS FOR THE TREATMENT OF INFLAMMATORY BOWEL DISEASE<br/>[FR] UTILISATION DE LIGANDS DE RECEPTEUR D'OESTROGENE POUR LE TRAITEMENT D'UNE MALADIE INTESTINALE INFLAMMATOIRE
申请人:WYETH CORP
公开号:WO2005039581A1
公开(公告)日:2005-05-06
The present invention concerns a method of treating inflammatory bowel disease by diagnosing that a person is in need of treatment for inflammatory bowel disease and administering a therapeutically effective amount of a ligand which modulates NF-kB transcription factor by interaction with estrogen receptor ER-α, estrogen receptor ER-β, or both ER-α and ER-β estrogen receptors with a substantial absence of creatine kinase stimulation. In certain preferred embodiments, the administration is substantially without uterotropic activity.
Method of treating or preventing myocardial ischemia-reperfusion injury using NF-kB inhibitors
申请人:Chadwick Cyril Christopher
公开号:US20060111421A1
公开(公告)日:2006-05-25
The present invention concerns a method of treatment or prevention of myocardial ischemia-reperfusion injury by diagnosing that a person is in need of treatment or prevention of myocardial ischemia-reperfusion injury and administering a therapeutically effective amount of a ligand which modulates NF-kB transcription factor by interaction with estrogen receptor ER-α, estrogen receptor ER-β, or both ER-α and ER-β estrogen receptors with a substantial absence of creatine kinase stimulation. In certain preferred embodiments, the administration is substantially without uterotropic activity.