stem cell

06/16/2014 - 21:04

 The DNA in a pluripotent stem cell is bombarded with waves of proteins whose ebb and flow nudge the cell toward becoming blood, bone, skin or organs. A new theory by scientists at Rice University shows the cell’s journey is neither a simple step-by-step process nor all random.

06/05/2014 - 12:26

While chemotherapy can save lives, it can also cause many side effects, including the depletion of immune cells. Also, even in the absence of chemotherapy, normal aging takes a heavy toll on the immune system, leading to immune deficiencies and a higher risk of developing leukemia and a variety of malignancies with age. Now researchers reporting in the June 5th issue of the Cell Press journal Cell Stem Cell have found that a simple dietary intervention—periodic fasting—may combat both chemotherapy-induced and aging-related changes in immune cell function by replenishing stem cells in the blood. The findings suggest that fasting may provide benefits for cancer patients, the elderly, and people with various immune defects.

 

05/20/2014 - 09:21

The scientific progress that has made it possible to dream of a future in which faulty organs could be regrown from stem cells also holds potential as an ethical and greener source for meat. So say scientists who suggest in the Cell Press journal Trends in Biotechnology that every town or village could one day have its very own small-scale, cultured meat factory.

 

05/01/2014 - 11:04

Researchers reporting in the Cell Press journal Cell Reports on May 1st have successfully coaxed stem cells made from the skin cells of infertile men into producing sperm cell precursors. These induced pluripotent stem cells (iPSCs) produced sperm precursors following transplantation into the testes of mice.

 

04/22/2014 - 14:45

Using reprogrammed skin cells, researchers have for the first time used stem cell techniques to grow fully functional assemblies of the cells that line airways leading to the lungs. The lab-grown airway tissue can now be used to study the molecular basis for lung diseases—from rare genetic disorders to common afflictions like asthma and emphysema—and test new drugs to treat the diseases.

 

01/27/2014 - 07:56

A new method allows for large-scale generation of human embryonic stem cells of high clinical quality. It also allows for production of such cells without destroying any human embryos. The discovery is a big step forward for stem cell research and for the high hopes for replacing damaged cells and thereby curing serious illnesses such as diabetes and Parkinson's disease.