In mammals, silencing of one of the two X chromosomes is necessary to achieve dosage compensation. The 17 kb non-coding RNA called Xist triggers X inactivation. Gene silencing by Xist can only be achieved in certain contexts such as in cells of the early embryo and in certain hematopoietic progenitors where silencing factors are present. Moreover, these epigenetic contexts are maintained in cancer progenitors in which SATB1 has been identified as a factor related to Xist-mediated chromosome silencing. ©22011 by the authors; licensee MDPI, Basel, Switzerland.
CITATION STYLE
Agrelo, R. (2011, June). X inactivation and progenitor cancer cells. Cancers. https://doi.org/10.3390/cancers3022169
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