What is a mechanical cue? I was attending a talk related to neurogenesis. So one professor was asking a question related to biochemical cues and mechanical cues (related to signaling pathways I believe). Cue as far as I understand is a signal, right? Biochemical cue is understandable for me. _But what does mechanical cue mean?_

Mechanical pressure, stress, strain or distortion are mechanical cues. In general, cues sensed by mechanoreceptors are mechanical cues!