Two Previously Unknown Brain Cell Types Have Been Discovered in Mouse Study - ScienceAlert

They looked at multipotent neural stem cells in adult mice – these cells can turn into various types of brain tissue – and discovered an 'activation switch' that led to sleeping stem cells in this zone developing into glial cells, including the two new types.

So, not only is this reservoir of dormant stem cells able to produce neurons, it's also the birthplace of different types of glial cells as well. .

In a model of demyelination, or neuron damage, the team found that both of their new glial cell types were activated.