This Episode's Science Round Up:

• Autophagy Regulates Stemness – Researchers have found that autophagy regulates the balance between self-renewal and differentiation of embryonic stem cells.
• Injury Induces Astrocyte Neurogenesis – When Notch signaling is blocked, astrocytes transition to a neural stem cell-like state after injury.
• Expanding the Skin by Stretching – Investigators have shown that stretching leads to skin expansion by the self-renewal of epidermal stem cells.
• Functional Neural Stem Cell Grafts After Spinal Cord Injury – Scientists successfully implanted neural stem/progenitor cell grafts directly into spinal cord injuries in mice. The grafts integrated with and mimicked the animal’s existing neural network.