Harvard stem cells scientists at Brigham and Women's Hospital and MIT can now engineer cells that are more easily controlled following transplantation, potentially making cell therapies, hundreds of which are currently in clinical trials across the United States, more functional and efficient. Associate Professor Jeffrey Karp, PhD, and James Ankrum, PhD, demonstrate in this month's issue of Nature Protocols how to load cells with microparticles that provide the cells cues for how they should behave over the course of days or weeks as the particles degrade.
"Regardless of where the cell is in the body, it's going to be receiving its cues from the inside," said Karp, a Harvard Stem Cell Institute Principal Faculty member at Brigham and Women's Hospital. "This is a completely different strategy than the current method of placing cells onto drug-doped microcarriers or scaffolds, which is limiting because the cells need to remain in close proximity to those materials in order to function. Also these types of materials are too large to be infused into the bloodstream."