3D-Printed Scaffold Sparks Hope for Spinal Injuries

Quick Smiles:

• 3D-printed organoid scaffolds help regrow nerves in spinal cord injuries
• Rats with severed spinal cords showed significant recovery
• Breakthrough offers new hope for future human treatments

Researchers at the University of Minnesota Twin Cities have combined 3D printing and stem cell biology to create a promising new approach for spinal cord injury recovery.

This innovative process uses 3D-printed scaffolds lined with stem cell-derived spinal neural progenitor cells to guide new nerve growth and bridge damaged areas.

“We use the 3D printed channels of the scaffold to direct the growth of the stem cells, which ensures the new nerve fibers grow in the desired way,” said Guebum Han PhD, former University of Minnesota mechanical engineering researcher.

In laboratory trials, these scaffolds were transplanted into rats with fully severed spinal cords, where the cells successfully became neurons and extended fibers to reconnect nerve circuits.

As a result, the new nerve cells integrated well with the host spinal cord tissue, leading to notable recovery in the animals.

“Regenerative medicine has brought about a new era in spinal cord injury research,” said Ann Parr, professor of neurosurgery at the University of Minnesota. “Our laboratory is excited to explore the future potential of our ‘mini spinal cords’ for clinical translation.”

Though still in its early stages, this research brings hope for future treatments, and the team aims to continue expanding their work.

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