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RESEARCH PRODUCT

Brains in metamorphosis: reprogramming cell identity within the central nervous system

Paola ArlottaBenedikt BerningerBenedikt Berninger

subject

Central Nervous SystemNeuronsCell typeLineage (genetic)General Neurosciencemedia_common.quotation_subjectCentral nervous systemInduced Pluripotent Stem CellsMetamorphosis BiologicalBiologyCellular ReprogrammingArticlemedicine.anatomical_structurenervous systemmedicineAnimalsHumansEpigeneticsMetamorphosisInduced pluripotent stem cellNeuroscienceReprogrammingOrganismmedia_common

description

During embryonic development, uncommitted pluripotent cells undergo progressive epigenetic changes that lock them into a final differentiated state. Can mammalian cells change identity within the living organism? Direct lineage reprogramming of cells has attracted attention as a means to achieve organ regeneration. However, it is unclear whether cells in the CNS are endowed with the plasticity to reprogram. Neurons in particular are considered among the most immutable cell types, able to retain their class-specific traits for the lifespan of the organism. Here we focus on two experimental paradigms, glia-to-neuron and neuron-to-neuron conversion, to consider how lineage reprogramming has challenged the notion of CNS immutability, paving the way for the application of reprogramming strategies to reshape neurons and circuits in vivo.

10.1016/j.conb.2014.04.007https://europepmc.org/articles/PMC4122594/