Figure 6.
Is a recovery of stem cell potential by polysialylation possible? (A) Spermatogonia stem cells (SSC) start to differentiate [80]. The daughter cells are connected via cytoplasmic bridges. A mechanical fragmentation of the connected daughter cells leads to a recovery of stem cell potential [78,79]. (B) It was speculated that polysialylation may support a destruction of cytoplasmic bridges and the separation of daughter cells [74]. So far, however, no direct experimental evidence exists.