Skip to main content

Thank you for visiting You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.

  • Special Report
  • Published:

The hard cell

Ethical quandaries aside, stem-cell science is attracting researchers worldwide. Ricki Lewis reports.

This is a preview of subscription content, access via your institution

Access options

Buy this article

Prices may be subject to local taxes which are calculated during checkout

Author information

Authors and Affiliations


Related links

Related links

Related links in Nature Research

Stem-cell research

Stem-cell state lines

Stemming the tide

Neal Copeland and Nancy Jenkins, principal investigators, Institute of Molecular and Cell Biology, Singapore

Singapore: Filling Biopolis

Related external links


International Society for Stem Cell Research (ISSCR)

California Institute for Regenerative Medicine

Canadian Stem Cell Network

London Regenerative Medicine Network

National Institutes of Health, Stem Cell Information

New York Stem Cell Foundation

Stem Cell Research Foundation

Rights and permissions

Reprints and permissions

About this article

Cite this article

Lewis, R. The hard cell. Nature 447, 748–749 (2007).

Download citation

  • Published:

  • Issue Date:

  • DOI:


Quick links

Nature Briefing

Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily.

Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing