STAT3 and asthma: Wang et al. found that cryptotanshinone (3) can significantly reduce the number and infiltration of total cells, neutrophils, and eosinophils in bronchoalveolar fluid, decrease airway resistance in mice, and attenuate inflammation to treat asthma through the inhibition of the signal transducer and activator of transcription 3 (STAT3) signaling pathway, which in turn can inhibit tumor necrosis factor-like weak inducer of apoptosis and transforming growth factor β1 (TGF-β1) signaling crosstalk [55].