Barbar et al. identify CD49f as a novel surface marker expressed by human astrocytes that can purify hiPSC-astrocytes and primary fetal astrocytes. CD49f+ hiPSC-astrocytes respond to pro-inflammatory stimuli and become A1 reactive astrocytes, which are dysfunctional and secrete neurotoxic factors that induce apoptosis in human and rodent neurons.
- A1 reactive astrocytes
- FACS purification
- induced pluripotent stem cells
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