The Globe and Mail [1], based on Nature articles [2,3,4] has a long discussion about how it is looking more and more like stem cells (or at least cells that behave like stem cells) may be at the core of many, perhaps even most cancers. The net of it is that if this proves to be true then treating cancer is going to require a bit of a rewrite from a therapy standpoint.
<br><br>Now, the flip side of the coin is that scientists seem to be getting a handle on true dedifferentation by converting mature astrocytes *back* into neuronal stem cells [5].<br><br>Robert<br><br>1.Stem cells core of more cancers
<br><a href="http://www.theglobeandmail.com/servlet/story/RTGAM.20061120.wxcancerstemcells20/BNStory/cancer/home/?pageRequested=all">http://www.theglobeandmail.com/servlet/story/RTGAM.20061120.wxcancerstemcells20/BNStory/cancer/home/?pageRequested=all
</a><br>2. A human colon cancer cell capable of initiating tumour growth in immunodeficient mice. O'Brien CA et al<br><a href="http://http://www.nature.com/nature/journal/vaop/ncurrent/abs/nature05372.html">http://www.nature.com/nature/journal/vaop/ncurrent/abs/nature05372.html
</a><br>3. Identification and expansion of human colon-cancer-initiating cells. Ricci-Vitiani L et al<br><a href="http://www.nature.com/nature/journal/vaop/ncurrent/abs/nature05384.html">http://www.nature.com/nature/journal/vaop/ncurrent/abs/nature05384.html
</a><br>4. Glioma stem cells promote radioresistance by preferential activation of the DNA damage response. Bao S et al<br><a href="http://www.nature.com/nature/journal/vaop/ncurrent/abs/nature05236.html">http://www.nature.com/nature/journal/vaop/ncurrent/abs/nature05236.html
</a><br>5. Transforming growth factor alpha promotes sequential conversion of mature astrocytes into neural progenitors and stem cells. Sharif A et al<br><a href="http://www.nature.com/onc/journal/vaop/ncurrent/abs/1210071a.html">
http://www.nature.com/onc/journal/vaop/ncurrent/abs/1210071a.html</a><br>