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Am J Physiol Heart Circ Physiol 295: H447-H453, 2008. First published June 13, 2008; doi:10.1152/ajpheart.00461.2008
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PERSPECTIVE

The physiological basis of intracrine stem cell regulation

Richard N. Re and Julia L. Cook

Ochsner Clinic Foundation, New Orleans, Louisiana

Submitted 1 May 2008 ; accepted in final form 11 June 2008

ABSTRACT

Intracrine peptides and proteins participate in the regulation of adult and pleuripotential embryonic-like stem cells. Included among these factors are VEGF, dynorphin, the readthrough form of acetylcholinesterase, Oct3/4, Pdx-1, Pax-6, and high-mobility group protein B1, among others. In some cases, the establishment of intracrine feedback loops can be shown to be relevant to this regulation, consistent with previously proposed principles of intracrine action. Here the role of intracrines in stem cell regulation is reviewed, with particular attention to the intracrine regulation of cardiac stem cells. The reprogramming of cells to restore the pleuripotent phenotype and the possible role of stem/progenitor cells in neoplasia are also discussed.

stem cells; differentiation


Address for reprint requests and other correspondence: R. N. Re, Scientific Director, Ochsner Clinic Foundation, New Orleans, LA 70121 (e-mail: rre{at}ochsner.org)




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R. N. Re and J. L. Cook
Senescence, apoptosis, and stem cell biology: the rationale for an expanded view of intracrine action
Am J Physiol Heart Circ Physiol, September 1, 2009; 297(3): H893 - H901.
[Abstract] [Full Text] [PDF]


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