Crosstalk of intercellular signaling pathways in the generation of midbrain dopaminergic neurons in vivo and from stem cells

Claude Brodski, Sandra Blaess, Juha Partanen, Nilima Prakash

Research output: Contribution to journalReview articlepeer-review

14 Scopus citations

Abstract

Dopamine-synthesizing neurons located in the mammalian ventral midbrain are at the center stage of biomedical research due to their involvement in severe human neuropsychiatric and neurodegenerative disorders, most prominently Parkinson's Disease (PD). The induction of midbrain dopaminergic (mDA) neurons depends on two important signaling centers of the mammalian embryo: the ventral midline or floor plate (FP) of the neural tube, and the isthmic organizer (IsO) at the mid-/hindbrain boundary (MHB). Cells located within and close to the FP secrete sonic hedgehog (SHH), and members of the wingless-type MMTV integration site family (WNT1/5A), as well as bone morphogenetic protein (BMP) family. The IsO cells secrete WNT1 and the fibroblast growth factor 8 (FGF8). Accordingly, the FGF8, SHH, WNT, and BMP signaling pathways play crucial roles during the development of the mDA neurons in the mammalian embryo. Moreover, these morphogens are essential for the generation of stem cell-derived mDA neurons, which are critical for the modeling, drug screening, and cell replacement therapy of PD. This review summarizes our current knowledge about the functions and crosstalk of these signaling pathways in mammalian mDAneuron development in vivo and their applications in stem cell-based paradigms for the efficient derivation of these neurons in vitro.

Original languageEnglish
Article number3
JournalJournal of Developmental Biology
Volume7
Issue number1
DOIs
StatePublished - 1 Jan 2019

Keywords

  • BMP
  • Dopamine
  • FGF8
  • IPSC
  • Neuron
  • Parkinson's disease
  • Pluripotent stem cells
  • SHH
  • WNT

ASJC Scopus subject areas

  • Molecular Biology
  • Developmental Biology
  • Cell Biology

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