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    Enhancement of vertebrate cardiogenesis by a lectin from perivitelline fluid of horseshoe crab embryo

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    Date
    2008
    Author
    Ghaskadbi, S.
    Patwardhan, V.
    Chakraborthy, M.
    Agrawal, S.
    Verma, M.K.
    Chatterji, A.
    Lenka, N.
    Parab, P.B.
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    Abstract
    Cardiac myocytes are the first cells to differentiate during the development of a vertebrate embryo. A wide variety of molecules take part in various steps in this process. While exploring biologically active molecules from marine sources, it is found that a constituent of perivitelline fluid from embryos of the Indian horseshoe crab can enhance growth and differentiation of chick embryonic heart. The factor has been purified and identified the cardiac promoting molecule to be a novel lectin. It is shown that this molecule influences cardiac development by increasing the number of cells constituting the heart and by modulating the expression of several cardiac development regulatory genes in chick embryos. Using mouse embryonic stem cells it is shown that the cardiac myocyte-enhancing capacity of this molecule extends to mammals and its effects can be blocked using methylated sugars. This molecule may prove to be an important tool in the study of cardiomyocyte differentiation.
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    http://drs.nio.org/drs/handle/2264/1480
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