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2017 ; 6
(1
): 131-138
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Concise Review: Cell Surface N-Linked Glycoproteins as Potential Stem Cell
Markers and Drug Targets
#MMPMID28170199
Boheler KR
; Gundry RL
Stem Cells Transl Med
2017[Jan]; 6
(1
): 131-138
PMID28170199
show ga
Stem cells and their derivatives hold great promise to advance regenerative
medicine. Critical to the progression of this field is the identification and
utilization of antibody-accessible cell-surface proteins for immunophenotyping
and cell sorting-techniques essential for assessment and isolation of defined
cell populations with known functional and therapeutic properties. Beyond their
utility for cell identification and selection, cell-surface proteins are also
major targets for pharmacological intervention. Although comprehensive
cell-surface protein maps are highly valuable, they have been difficult to define
until recently. In this review, we discuss the application of a contemporary
targeted chemoproteomic-based technique for defining the cell-surface proteomes
of stem and progenitor cells. In applying this approach to pluripotent stem cells
(PSCs), these studies have improved the biological understanding of these cells,
led to the enhanced use and development of antibodies suitable for
immunophenotyping and sorting, and contributed to the repurposing of existing
drugs without the need for high-throughput screening. The utility of this latter
approach was first demonstrated with human PSCs (hPSCs) through the
identification of small molecules that are selectively toxic to hPSCs and have
the potential for eliminating confounding and tumorigenic cells in hPSC-derived
progeny destined for research and transplantation. Overall, the cutting-edge
technologies reviewed here will accelerate the development of novel cell-surface
protein targets for immunophenotyping, new reagents to improve the isolation of
therapeutically qualified cells, and pharmacological studies to advance the
treatment of intractable diseases amenable to cell-replacement therapies. Stem
Cells Translational Medicine 2017;6:131-138.