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  • Title: Lectin as a marker for staining and purification of embryonic pancreatic epithelium.
    Author: Kobayashi H, Spilde TL, Li Z, Marosky JK, Bhatia AM, Hembree MJ, Prasadan K, Preuett BL, Gittes GK.
    Journal: Biochem Biophys Res Commun; 2002 May 03; 293(2):691-7. PubMed ID: 12054524.
    Abstract:
    The embryonic pancreatic epithelium, and later the ductal epithelium, is known to give rise to the endocrine and exocrine cells of the developing pancreas, but no specific surface marker for these cells has been identified. Here, we utilized Dolichos Biflorus Agglutinin (DBA) as a specific marker of these epithelial cells in developing mouse pancreas. From the results of an immunofluorescence study using fluorescein-DBA and pancreatic specific cell markers, we found that DBA detects specifically epithelial, but neither differentiating endocrine cells nor acinar cells. We further applied this marker in an immunomagnetic separation system (Dynabead system) to purify these putative multi-potential cells from a mixed developing pancreatic cell population. This procedure could be applied to study differentiation and cell lineage selections in the developing pancreas, and also may be applicable to selecting pancreatic precursor cells for potential cellular engineering.
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