The process in which a relatively unspecialized cell acquires specialized features of a mesenchymal stem cell that contributes to the shaping of a nephronin the mesonephros. A mesenchymal stem cell is a cell that retains the ability to divide and proliferate throughout life to provide progenitor cells that can differentiate into specialized mesenchymal cells.
mesenchymal stem cell differentiation involved in mesonephric nephron morphogenesis