Reacción a "Reactions to the development of brain organoids from human fetal brain tissue"

This is an interesting new study where they make brain organoids from fetal brain tissue.
It is well done as a proof of principle. It is important because it may offer clues on what happens in brain development during authentic brain formation (rather than lying on embryonic stem cell derived tissues).
There are a lot of theories out there that origins of childhood brain tumors might start during fetal stages and such technique may enable some insights and support of disprove such theories in the future.