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Glial cells, such as microglia, astrocytes and oligodendrocytes, play a number of key roles in the central nervous system (CNS) but are often overlooked. However, the field of glial biology is expanding, and in recent years there have been major advancements and novel tools have been developed for further glia research.

In this ‘Ask the Experts’ feature, Susana Alcantara (Sartorius; Göttingen, Germany), Shane Liddelow (New York University; USA), Ukpong Eyo (University of Virginia; USA) and Nicola Allen (Salke Institute; CA, USA), discuss their perspectives on key advances, current obstacles and future developments in the field of glial biology