“…They contain mRNAs, microRNAs, proteins, signaling cytokines, and lipids [ 20 ], serving as messengers of cell-cell communication and regulators of various recipient cell functions [ 21 ]. Numerous medical studies have demonstrated exosomes' ability to regulate inflammation, modulate immune responses, influence cancer development, facilitate tissue repair, and aid in drug delivery [ [22] , [23] , [24] ]. Recent research has focused on the therapeutic effects of exosomes derived from BMSCs, USCs, and ADSCs, significantly promoting tendon-bone healing in various animal models [ [25] , [26] , [27] ].…”