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Role of Nurr1 in the Generation and Differentiation of Dopaminergic Neurons from Stem Cells

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Abstract

NURR1 is an essential transcription factor for the differentiation, maturation, and maintenance of midbrain dopaminergic neurons (DA neurons) as it has been demonstrated using knock-out mice. DA neurons of the substantia nigra pars compacta degenerate in Parkinson’s disease (PD) and mutations in the Nurr1 gene have been associated with this human disease. Thus, the study of NURR1 actions in vivo is fundamental to understand the mechanisms of neuron generation and degeneration in the dopaminergic system. Here, we present and discuss findings indicating that NURR1 is a valuable molecular tool for the in vitro generation of DA neurons which could be used for modeling and studying PD in cell culture and in transplantation approaches. Transduction of Nurr1 alone or in combination with other transcription factors such as Foxa2, Ngn2, Ascl1, and Pitx3, induces the generation of DA neurons, which upon transplantation have the capacity to survive and restore motor behavior in animal models of PD. We show that the survival of transplanted neurons is increased when the Nurr1-transduced olfactory bulb stem cells are treated with GDNF. The use of these and other factors with the induced pluripotent stem cell (iPSC)-based technology or the direct reprogramming of astrocytes or fibroblasts into human DA neurons has produced encouraging results for the study of the cellular and molecular mechanisms of neurodegeneration in PD and for the search of new treatments for this disease.

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Abbreviations

AADC:

L-aromatic amino acid decarboxylase

ALDH2:

Aldehyde dehydrogenase 2

ALDH1A1:

Aldehyde dehydrogenase 1 family member A1

ASCL1:

Achaete-scute complex homolog 1

BDNF:

Brain-derived neurotrophic factor

bHLH:

Basic helix-loop-helix

CA:

Catecholamine

CNS:

Central nervous system

D1R:

Dopamine 1 class receptor

D2R:

Dopamine 2 class receptor

DA neurons:

Dopaminergic neurons

DAT:

Dopamine transporter

EN:

Engrailed genes

ESCs:

Embryonic stem cells

FGF8:

Fibroblast growth factor family member 8

Fgfr2:

Fibroblast growth factor receptor 2

FOXA2:

Forkhead box protein A2

FP:

Floor plate

GABA:

Gamma-aminobutyric acid

GAD:

Glutamic acid decarboxylase

GDNF:

Glial cell line-derived neurotrophic factor

GIRK2:

G-protein-regulated inward-rectifier potassium channel 2

hiPSCs:

Human iPSCs

iDA neurons:

Induced DA neurons

iNeurons:

Induced neurons

iPSCs:

Induced pluripotent stem cells

LGE:

Lateral ganglionic eminence

mesDA neurons:

Mesencephalic DA neurons/midbrain DA neurons

MHB:

Mid-/hindbrain boundary

MSX1:

Msh homeobox 1

NA:

Noradrenaline

NBRE:

NGFI-B response element

NGN2:

Neurogenin 2

NPCs:

Neural progenitor cells

NR4A:

Orphan nuclear receptor family 4

NSCs:

Neural stem cells

OB:

Olfactory bulb

OBSCs:

Olfactory bulb stem cells

PD:

Parkinson’s disease

PITX3:

Pituitary homeobox 3

PGNs:

Periglomerular neurons

RXR:

Retinoid X receptor

SHH:

Sonic hedgehog

SN:

Substantia nigra

SNc:

Substantia nigra pars compacta

SV2:

Synaptic vesicle protein 2

SVZ:

Subventricular zone

TFs:

Transcription factors

TH:

Tyrosine hydroxylase

TYRP1:

Tyrosine-related protein1

VGAT:

Vesicular GABA transporter

VMAT2:

Vesicular monoamine transporter 2

VTA:

Ventral tegmental area

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Acknowledgments

This work was supported by grants from the Spanish Ministerio de Economía y Competitividad (MINECO: BFU2010-1963 and SAF2013-47596-R to C.V.-A. and BFU2010-20664 and SAF2013-48532-R to R.M.), Ministerio de Sanidad, Política Social e Igualdad (Instituto de Salud Carlos III, ISCIII: CIBERNED CB06/05/065 to C.V.-A. and CIBERNED CB06/05/0055 to R.M) and the Comunidad de Madrid (CM: S2011/BMD-2336 to RM and C.V.-A.). O.S., and E.R.-T received fellowships from the CM, CONACYT (Gobierno de Mexico), and MINECO.

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Correspondence to Carlos Vicario-Abejón.

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Rosario Moratalla and Carlos Vicario-Abejón are co-senior authors.

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Rodríguez-Traver, E., Solís, O., Díaz-Guerra, E. et al. Role of Nurr1 in the Generation and Differentiation of Dopaminergic Neurons from Stem Cells. Neurotox Res 30, 14–31 (2016). https://doi.org/10.1007/s12640-015-9586-0

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  • DOI: https://doi.org/10.1007/s12640-015-9586-0

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