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Stem Cell Reports. 2017 Oct 10;9(4):1207-1220. doi: 10.1016/j.stemcr.2017.08.016. Epub 2017 Sep 21.

IAP-Based Cell Sorting Results in Homogeneous Transplantable Dopaminergic Precursor Cells Derived from Human Pluripotent Stem Cells.

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Miltenyi Biotec GmbH, 51429 Bergisch Gladbach, Germany.
Aix-Marseille University, CNRS, IBDM; Campus de Luminy, 13009 Marseille, France.
Developmental and Regenerative Neurobiology, Department of Experimental Medical Science, Wallenberg Neuroscience Center and Lund Stem Cell Center, Lund University, 22184 Lund, Sweden.
Miltenyi Biotec GmbH, 51429 Bergisch Gladbach, Germany. Electronic address:


Human pluripotent stem cell (hPSC)-derived mesencephalic dopaminergic (mesDA) neurons can relieve motor deficits in animal models of Parkinson's disease (PD). Clinical translation of differentiation protocols requires standardization of production procedures, and surface-marker-based cell sorting is considered instrumental for reproducible generation of defined cell products. Here, we demonstrate that integrin-associated protein (IAP) is a cell surface marker suitable for enrichment of hPSC-derived mesDA progenitor cells. Immunomagnetically sorted IAP+ mesDA progenitors showed increased expression of ventral midbrain floor plate markers, lacked expression of pluripotency markers, and differentiated into mature dopaminergic (DA) neurons in vitro. Intrastriatal transplantation of IAP+ cells sorted at day 16 of differentiation in a rat model of PD resulted in functional recovery. Grafts from sorted IAP+ mesDA progenitors were more homogeneous in size and DA neuron density. Thus, we suggest IAP-based sorting for reproducible prospective enrichment of mesDA progenitor cells in clinical cell replacement strategies.


CD47; IAP; PD; Parkinson's disease; cell replacement therapy; dopaminergic; floor plate; immunomagnetic sorting (MACS); mesDA progenitor cells; midbrain; regenerative medicine

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