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Elucidating the complex combinations of growth factors and signaling molecules that maintain pluripotency or, alternatively, promote the controlled differentiation of human embryonic stem cells (hESCs) has important implications for the fundamental understanding of human development, devising cell replacement therapies, and cancer cell biology. hESCs are(More)
Type-1 plasminogen activator-inhibitor (PAI-1) is a major physiologic inhibitor of plasminogen activation. Incubation of HTC rat hepatoma cells with the cyclic nucleotide analogue, 8-bromo-cAMP, causes a dramatic increase in tissue-type plasminogen activator activity secondary to a 90% decrease in PAI-1 mRNA. Although 8-bromo-cAMP causes a modest decrease(More)
Elucidating the complex combinations of growth factors and signaling molecules that maintain pluripotency or, alternatively, promote the controlled differentiation of human embryonic stem cells (hESCs) has important implications for the fundamental understanding of human development, devising cell replacement therapies, and cancer cell biology. hESCs are(More)
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