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Researchers Find Simple, Less Expensive Way Of Growing Human Stem Cells

Research led by The University of Western Australia has discovered a new simple and less expensive way of growing human stem cells. Using hydrogel, a gel with a gradient that can be used to mimic the stiffness of human body tissues, the researchers were able to generate positive outcomes for the growth of stem cells.

By using hydrogel, scientists ‘tricked’ the stem cells
DrYu Suk Choi from UWA’s School of Human Sciences at The University of Western Australia led the international collaboration which also included researchers from the University of California, San Diego (USA) and Max Planck Institute for Medical Research (Germany). “Stem cells work by using the ‘stiffness’ of surrounding tissue as a gauge to identify the way they need to behave in a particular environment in the human body,” Dr Choi said. “By using hydrogel to mimic the stiffness of tissue, we found we could ‘trick’ the stem cells into behaving in particular ways to help them grow and encourage the cells to behave in positive, regenerative ways.

(Banner image - Dr Choi with the photomask used to create hyrdogel pattern)

Research may have important uses in combating serious illnesses
“Hydrogel is simple and inexpensive to produce and could have a wide range of applications in biology labs that don’t always have the infrastructure available to use other methods to mimic the stiffness of tissue to aid stem cell growth.” Dr Choi said the research may have important uses in combating serious illnesses affecting the human population. “Many degenerative diseases result in changes to tissue stiffness which alters the behavior of cells,” he said. “But by controlling tissue stiffness we can revert cell behavior back to normal, and change their behavior at the disease site into more regenerative behaviour. This will help us to treat diseases such as cancer that are currently very difficult to treat.” The next step for the researchers will be to use hydrogel with patient originated cells to further understand the effect of tissue stiffness on cell behaviour.