Tag Archives: Nature

Molecule that leads stem cells to bone marrow discovered

An ‘antenna’ molecule, which is capable of guiding blood stem cells to their natural ‘home’, the bone marrow, has been discovered. The discovery could improve the efficiency of umbilical cord stem cell transplants. This type of transplant is not efficient when there are not many umbilical cord stem cells present, since few of them are able to reach the bone marrow from the blood.
Reported by Nature magazine, the discovery was made by David Scadden of the Harvard Stem Cell Institute in Boston. The stem cells, which normally renew the population of blood cells in the body
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ITALY – Here’s Why Cancer Stem Cells Are Immortal

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Scientists at the FIRC (Italian Foundation for Cancer Research) Institute of Molecular Oncology of the European Institute of Oncology in Milan have revealed how to eliminate cancer stem cells, the true reason for cancer’s incurability. Researchers led by Pier Giuseppe Pelicci, Director of the Department of Experimental Oncology of the European Institute of Oncology, and Professor of general pathology at the University of Milan, have discovered how cancer stem cells become immortal.

The same oncogenes that are responsible for triggering the process of tumor formation, also impede stem cells from growing old, and allow them to maintain their
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USA – Prostate Repaired with Stem Cells

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Perhaps in the not-too-distant future people who need “to rebuild” their prostate will be able to do so using stem cells removed from prostate tissue. This week Nature magazine reported that a group of Genetech researchers in San Francisco has isolated stem cells extracted from prostate tissue of an adult mouse and used them to generate new prostate cells in the same rat. Wei-Qiang Gao, the coordinator of the study, described the factors that made these cells, which are able to regenerate on a long term basis.

In the same study, researchers reported that they
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German Study Discovers Stem Cell ‘Silent’ Reserves

Andreas Trumpp

Andreas Trumpp and his colleagues from the German Cancer Research Center have recently spoken about a “silent reserve” of stem cells, wondering what type of medical impact the discovery made in Heidelberg of “dormant stem cells” could have.

Usually, dormant bone marrow cells activate and multiply only in a crisis or emergency to react to serious cellular loss due to a virus or hemorrhage. When their work is done, they return to a dormant stage. This withdrawal phase keeps them protected from mutations, cellular toxins, and other dangerous substances, since the cells do not divide
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UWM researcher makes breakthrough in stem cell technology

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UW-Milwaukee researcher Andrew Cohen has successfully developed a software program that facilitates predicting the evolution of stem cells. The program essentially speeds up what has been a tedious process for researchers in the past.

The program was published last week in the journal Nature Methods. It applies algorithmic information theory to the growth and movement of stem cells tracked over time to show what type of cells (i.e. brain, skin, etc.) they will eventually develop into.

“People look at images and take measurements by hand,” Cohen explained. “It takes a long time, and using computers makes the process a
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