Tricking the body’s immune system into ignoring stem cells will be the key to successful stem cell transplants, according to Professor Maggie Dallman, Imperial College London, speaking today at the BA Festival of Science.
Professor Dallman is investigating how to trick the body into producing regulatory cells, which prevent the body’s immune system from attacking its own molecules, at the site of a stem cell transplant. If they were present when stem cells were introduced into the body, the regulatory cells would inhibit the body’s natural response to ‘foreign’ cells, meaning the stem cells would be accepted.
Drug therapies can prevent traditional organ grafts from being destroyed in the short term but organ transplants typically fail after a number of years as the body’s immune system rejects the new tissue. Scientists are hopeful that harnessing regulatory cells would prevent stem cell transplants from facing similar rejection.
Laura Gallagher | alfa
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MPQ scientists achieve long storage times for photonic quantum bits which break the lower bound for direct teleportation in a global quantum network.
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The miniaturization of the current technology of storage media is hindered by fundamental limits of quantum mechanics. A new approach consists in using so-called spin-crossover molecules as the smallest possible storage unit. Similar to normal hard drives, these special molecules can save information via their magnetic state. A research team from Kiel University has now managed to successfully place a new class of spin-crossover molecules onto a surface and to improve the molecule’s storage capacity. The storage density of conventional hard drives could therefore theoretically be increased by more than one hundred fold. The study has been published in the scientific journal Nano Letters.
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With innovative experiments, researchers at the Helmholtz-Zentrums Geesthacht and the Technical University Hamburg unravel why tiny metallic structures are extremely strong
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