Labeling of mesenchymal stem cells by bioconjugated quantum dots.

Shah, Bhranti S; Clark, Paul A; Moioli, Eduardo K; Stroscio, Michael A; Mao, Jeremy J · Nano Lett · 2007

basic_science · Level V

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Abstract

Long-term labeling of stem cells during self-replication and differentiation benefits investigations of development and tissue regeneration. We report the labeling of human mesenchymal stem cells (hMSCs) with RGD-conjugated quantum dots (QDs) during self-replication, and multilineage differentiations into osteogenic, chondrogenic, and adipogenic cells. QD-labeled hMSCs remained viable as unlabeled hMSCs from the same subpopulation. These findings suggest the use of bioconjugated QDs as an effective probe for long-term labeling of stem cells.

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