Novel Live Alkaline Phosphatase Substrate for Identification of Pluripotent Stem Cells
Alkaline phosphatases (AP) are a class of enzymes that hydrolyze phosphate containing molecules under alkaline conditions. In humans, there are primarily four different types of this enzyme; intestinal, placental, placental-like and non-tissue specific forms. The non-tissue specific isozyme of AP is expressed in liver, bone and kidney. A similar isozyme was identified in pluripotent stem cells when monoclonal antibodies, TRA-2-49/6E, recognizing determinants of human embryonal carcinoma (EC) cells showed specific reactivity to this isoform.1 AP is also known to be expressed at high levels in other pluripotent stem cell types such as embryonic germ cells (EG), embryonic stem cells (ESC) and induced pluripotent stem cells (iPSC).2–5 Although definitive measures of pluripotency involves in-vitro tri-lineage differentiation and in-vivo teratoma formation, the most widely tested and validated panel for initial evaluation of ESC and iPSC consists of Stage Specific Embryonic Antig
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- Novel Live Alkaline Phosphatase Substrate for Identification of Pluripotent Stem Cells
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Stem Cell Reviews and Reports
Volume 8, Issue 3 , pp 1021-1029
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- 1. Molecular Probes, Life Technologies, 29851 Willow Creek Road, Eugene, OR, 97402, USA
- 2. Primary and Stem Cell Systems, Life Technologies, 5791 Van Allen Way, Carlsbad, CA, 92008, USA
- 3. National Institutes of Health-Center for Regenerative Medicine, Bethesda, MD, USA
- 4. Life Technologies, 5781 Van Allen Way, Carlsbad, CA, 92008, USA