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2015 ; 10
(11
): e0142212
Nephropedia Template TP
Knight JM
; Mak G
; Shaw J
; Porter P
; McDermott C
; Roberts L
; You R
; Yuan X
; Millien VO
; Qian Y
; Song LZ
; Frazier V
; Kim C
; Kim JJ
; Bond RA
; Milner JD
; Zhang Y
; Mandal PK
; Luong A
; Kheradmand F
; McMurray JS
; Corry DB
PLoS One
2015[]; 10
(11
): e0142212
PMID26605551
show ga
Asthma is one of the most common of medical illnesses and is treated in part by
drugs that activate the beta-2-adrenoceptor (?2-AR) to dilate obstructed airways.
Such drugs include long acting beta agonists (LABAs) that are paradoxically
linked to excess asthma-related mortality. Here we show that LABAs such as
salmeterol and structurally related ?2-AR drugs such as formoterol and
carvedilol, but not short-acting agonists (SABAs) such as albuterol, promote
exaggerated asthma-like allergic airway disease and enhanced airway constriction
in mice. We demonstrate that salmeterol aberrantly promotes activation of the
allergic disease-related transcription factor signal transducer and activator of
transcription 6 (STAT6) in multiple mouse and human cells. A novel inhibitor of
STAT6, PM-242H, inhibited initiation of allergic disease induced by airway fungal
challenge, reversed established allergic airway disease in mice, and blocked
salmeterol-dependent enhanced allergic airway disease. Thus, structurally related
?2-AR ligands aberrantly activate STAT6 and promote allergic airway disease. This
untoward pharmacological property likely explains adverse outcomes observed with
LABAs, which may be overcome by agents that antagonize STAT6.