Buzz
While teleporters and instant meal machines remain elusive, the future of science is here. Scientists have developed a method to 3D-print large-scale, implantable human tissues, including muscle, cartilage, and bone. Their groundbreaking research was published online today in the journal Nature Biotechnology.
Although this achievement is remarkable, it’s not entirely unexpected. The field of tissue engineering has been consistently delivering futuristic breakthroughs for years. The National Institutes of Health is advancing a “tissue on a chip” initiative to better predict how human cells react to various drugs. Meanwhile, other researchers are using 3D bioprinters to create new skin for burn patients.
The latest integrated tissue and organ printing system (ITOP) represents a significant leap forward. Functioning similarly to a household inkjet printer, it uses biodegradable scaffolding and hydrogel infused with living cells instead of ink. The scaffolding ensures structural stability for the transplanted body parts, while the permeable, water-based gel allows oxygen and nutrients to penetrate. This enables the implanted tissue to grow safely and even develop new blood vessels.
The team successfully 3D-printed jawbones, sections of muscle, and cartilage shaped like ears. These structures were then transplanted into rodents, where they grew and functioned effectively.
“This innovative tissue and organ printer marks a significant step forward in our mission to create replacement tissues for patients,” stated Anthony Atala, senior author from the Wake Forest Institute of Regenerative Medicine, in a press release. “It can produce durable, human-sized tissues in any shape. With further advancements, this technology holds the potential to print living tissues and organs for surgical use.”
The researchers believe that in the future, physicians could use this technology to create personalized body parts for patients with damaged or missing bones, muscles, or cartilage. However, more research is needed, as the ITOP-printed jaws and ears have yet to be tested in human trials.
