3.8 Article

Integrin and FAK Regulation of Human Pluripotent Stem Cells

Journal

CURRENT STEM CELL REPORTS
Volume 3, Issue 4, Pages 358-365

Publisher

SPRINGER HEIDELBERG
DOI: 10.1007/s40778-017-0100-x

Keywords

Pluripotent stem cells; Human embryonic stem cells; Stem cell niche; FAK; Integrin signaling; Pluripotency networks

Funding

  1. BBSRC UK [BB/D014638, BB/D014530]
  2. MRC UK [G0801057, G1000399]
  3. BBSRC [BB/D014530/1] Funding Source: UKRI
  4. MRC [MR/M017354/1] Funding Source: UKRI

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Purpose of review Human pluripotent stem cells (hPSCs) are anchorage-dependent cells that can be cultured on a variety of matrices and express integrins and the machinery for integrin signaling. Until recently, there has been limited understanding of exactly how integrin signaling regulates pluripotent stem cell (PSC) behavior. This review summarizes our knowledge of how integrins and focal adhesion kinase (FAK) regulate different aspects of hPSC biology. Recent findings The latest research suggests that mouse and human embryonic stem cells utilize similar integrin signaling players but with different biological outcomes, reflecting the known developmental difference in their pluripotent status. Notably, attachment cues via FAK signaling are crucial for hPSCs survival and pluripotency maintenance. FAK may be found cortically but also in the nucleus of hPSCs intersecting core pluripotency networks. Summary Integrins and FAK have been consigned to the conventional role of cell adhesion receptor systems in PSCs. This review highlights data indicating that they are firmly integrated in pluripotency circuits, with implications for both research PSC culture and scale up and use in clinical applications.

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