Ethical publications

You are here

Stem cell divisions in tissues indicate cancer risk

意得辑专家视点 | 2015年1月2日 | 1,920 浏览次数
Stem cell divisions in tissues indicate cancer risk

Researchers have attributed the cause of cancer to two factors: heredity and lifestyle. However, environmental risk factors can alter the cancer rates among adult tissues contribute to the development cancer. Now scientists at Johns Hopkins University have identified a third factor that helps explain why the chances of developing some kinds of cancer such as lung cancer are higher than others such as brain cancer. Cristian Tomasetti, a mathematician who studies oncology, and Bert Vogelstein, a cancer geneticist studied the number of stem cells and their rates of division in 31 different tissues. They discovered that about 65% of the variation in cancer risk among tissue types depends on the number of stem cell divisions a tissue undergoes within its lifetime. The greater the cumulative number of stem cell divisions, the higher the cancer rate in that tissue. It was observed that clorectal and basal cell tissue had the highest number of cell divisions, while bone tissue of the pelvis, head, and arms underwent the least divisions, which affected the likelihood of these tissues developing cancer.

Read more in The Scientist.


《意得辑专家视点》深信知识需要开放给所有大众并传播,因此我们鼓励读者重复发表我们的内容,重复发表形式可为在线或印刷。我们采用知识共享(Creative Commons license),只要您遵守以下事项,即可免费重复发表我们的内容:
  • 作者信息:请尊重我们的作者,他们花费了时间精力为您撰写这些有价值的内容,重复发表时加注作者信息。
  • 意得辑专家视点:必须注明文章出自《意得辑专家视点》。
  • 表达您的情意:您可以加句“前往《意得辑专家视点》阅读全文”之类的话,啊,还有,别忘了加上文章链接。
  • 重复使用图片:要使用某些文章的图片必须事先取得许可,并加注图片原始出处。
  • 镶嵌代码:要重复使用这篇文章最简单的方式就是将下面的代码复制贴上您的页面!