Tag Archives: nanoparticles

Remotely controlled magnetic nanoparticles stimulate stem cells to regenerate better, denser bone

Durham, NC – In a recent study published in STEM CELLS Translational Medicine, scientists have found what they believe might be a better way to regrow bone tissue using magnetic nanoparticles coated with targeting proteins that stimulate stem cells to regenerate the bone. They also were able to deliver the cells directly to the injured area, remotely control the nanoparticles to generate mechanical forces and maintain the regeneration process through staged releases of a protein growth factor. These findings might someday have significant impact for anyone suffering from a major bone trauma, disease or defect.

The gold standard for repairing bone that can’t heal itself is a graft taken from the patient. Unfortunately this is a painful, invasive procedure, plus there are times when the area that needs repair is too massive or the patient has a skeletal disorder so has no healthy bone for grafting. That’s why spurring the growth of new bone through injected stem cells is an area of great interest to medical researchers. Much progress has been made to this end, but a major hurdle remains – finding an appropriate means by which to stimulate the differentiation of the stem cells so they become the quality of bone tissue needed in a quantity large enough to treat patients effectively.