STAT3 and anaphylaxis: The fibroblast growth factor-inducible 14 (Fn14) receptor, the signal transducer and activator of transcription 3 (STAT3), the peroxisome proliferator-activated receptor (PPAR β/δ), and MALT1 protease activity have been proposed as therapeutic strategies in allergy and anaphylaxis (84, 175, 183–185).