Obituary of insight into the mechanisms of myelination and of In Memoriam: neuronal–glial interactions. Wood, Dick established that the axon was mitogenic for Schwann cells and oligodendrocytes (Wood and Bunge, 1975, 1986), providing the first example of the biological The neuroscience community has lost a pioneer, a men-activity we now recognize as the neuregulin family of tor, and a generous ...