In response to scientific issues that have been raised, Stem Cells is posting an “expression of scientific concern” in relation to the paper entitled, “Selenium Induces Improvement of Stem Cell Behaviors in Human Adipose-Tissue Stromal Cells via SAPK/JNK and Stemness Acting Signals,” 2008:26:2724–2734, by Soo Kyung Kang, et al. Further information will be provided as soon as the Journal has received the results of an ongoing thorough institutional review.

Jan A. Nolta, Editor

Noel Buckley, Majlinda Lako, Mark F. Pittenger, Associate Editors

Terry R. J. Lappin, Concise Review Editor