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Department of Animal Sciences
The Robert H. Smith Faculty
of Agricultural, Food & Environment

The Hebrew University of Jerusalem.

P.O. Box 12, Rehovot 76100, Israel
Phone: +972-(0)8-9489119;
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Open Chromatin, Epigenetic Plasticity, and Nuclear Organization in Pluripotency

Citation:

Schlesinger, S. ; Meshorer, E. Open Chromatin, Epigenetic Plasticity, and Nuclear Organization in Pluripotency. Developmental Cell 2019, 48, 135-150.

Abstract:

Pluripotent embryonic stem cells are considered to have open and accessible chromatin relative to differentiated cells. Schlesinger and Meshorer review chromatin and epigenetic features in 2i- versus serum-grown conditions to come to a clearer picture of the genuine characteristics of pluripotency as opposed to artifacts of culture condition. © 2019 Elsevier Inc. Pluripotent embryonic stem cells (ESCs) are considered to have open and accessible chromatin relative to differentiated cells. However, as many studies supporting these conclusions relied on ESCs grown in serum, it has been suggested that some of these features are the result of culture conditions, particularly as more recent work using GSK3/MEK inhibitors (“2i”) to mimic “ground-state” conditions of the pre-implantation blastocyst observed some altered epigenetic features. Here, we systematically review chromatin and epigenetic features in 2i- and serum-grown conditions to come to a clearer picture of what are genuine characteristics of pluripotency and what open chromatin features predict pluripotency. © 2019 Elsevier Inc.

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