Details:
A series of molecular signals initiated by the binding of oncostatin-M (OSM) to a receptor on the surface of a cell, and ending with regulation of a downstream cellular process, e.g. transcription. OSM can signal via at least two different receptors (a specific receptor and a LIF receptor) to activate different downstream signal transduction pathways. [GOC:nhn, GOC:signaling, PMID:10579456, PMID:12811586]