15(R)-Lipoxin A4 is a specialized pro-resolving mediator and an acetylated derivative of COX2. 15 (R)-Lipoxin A4 is present in neurons. 15 (R)-Lipoxin A4 induces the SPM synthases ALOX12 and ALOX15, as well as the pro-resolving receptor ALX. 15 (R)-Lipoxin A4 inhibits protein kinases, including JNK1/2/3, Lyn, STAT-3 and STAT-6. 15 (R)-Lipoxin A4 enhances the release of pro-resolving mediators. 15 (R)-Lipoxin A4 alleviates the pro-inflammatory phenotype of tendon-derived stromal cells. 15 (R)-Lipoxin A4 promotes the resolution of neuroinflammation. 15 (R)-Lipoxin A4 is applicable to research related to achilles tendinitis, achilles tendon rupture and Alzheimer’s disease.