作者: Dominique Muschter , Anna-Sophie Beiderbeck , Tanja Späth , Christian Kirschneck , Agnes Schröder
DOI: 10.3390/IJMS20030503
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摘要: This study aimed to analyze if the sensory neuropeptide SP (SP) and neurokinin receptor 1 (NK1R) are involved in macrophage mechano-transduction, similar chondrocytes, alpha-calcitonin gene-related peptide (αCGRP) CGRP (CRLR/Ramp1) show comparable activity. Murine RAW264.7 macrophages were subjected a cyclic stretch for 1–3 days 4 h/day. Loading effects analyzed gene protein expression of neuropeptides their receptors, adhesion, apoptosis, proliferation ROS bone marrow-derived (BMM) isolated after surgical osteoarthritis (OA) induction proliferation, apoptosis osteoclastogenesis response loading. induced NK1R CRLR/Ramp1 altered macrophages. mRNA level decreased loading whereas αCGRP was stabilized. reduced adhesion loaded both initially increased activity followed by time-dependent suppression. OA sensitized BMM caspase 3/7 mediated Both neuropeptides, αCGRP, receptors murine mechano-transduction affecting impact on indicate that OA-associated biomechanical alterations might affect population.