Engadget RSS Feed

Scientists 3D-print embryonic stem cells, pave the way for lab-made organ transplants

Sarah Silbert — Tue, 05 Feb 2013 22:04:00 -0500

3D printers already have a firm footing the commercial market, with more than 20 models available for well-heeled DIYers, and the technology's appeal isn't lost on the scientific community. A team at Heriot-Watt University in Edinburgh, Scotland has developed a method for 3D-printing clusters of human embryonic stem cells in a variety of sizes. Researchers have successfully printed 3D cells before, but this is the first time that embryonic cell cultures, which are especially delicate, have been built in three dimensions. Human embryonic stem cells can replicate almost any type of tissue in the human body -- and the scientists at Heriot-Watt believe that lab-made versions could one day be used to make organ transplants, thereby rendering donors unnecessary. In the nearer future, 3D-printed stem cells could be used to make human tissue models for drug testing; effectively eliminating the need for animal testing. Makes that Burritob0t look a little less ambitious, doesn't it?

Filed under: Science, Alt

Comments

Via: Inhabitat, BBC

Source: Heriot-Watt University

Regenerative medicine pioneer continues changing lives with first successful laryngotracheal implants

Jamie Rigg — Thu, 28 Jun 2012 05:12:00 -0400

Dr. Paolo Macchiarini is no stranger to world firsts, and less than a year after performing a synthetic windpipe transplant, the Karolinska Institute Professor has coordinated no less than two successful transplants of synthetic sections of larynx. Amazingly, both patients were able to breathe and talk normally straight after surgery, the basic functions we take for granted that they either struggled with or were simply unable to do before. The implants consisted of personally designed synthetic scaffolds coated with the candidates' own stem cells, so there's neither the chance of rejection nor the burden of life-long immunosuppressant therapy. Despite the amazing feat, Dr. Macchiarini ain't done yet, claiming this is the first of many steps towards building a synthetic, complete larynx -- voice box and all. Jump past the break for the official PR issued by Harvard Bioscience, the company responsible for growing what's in that tub.

Filed under: Alt

Comments

Over the counter, spray-on stem cell treatment could heal burns on the go

Laura June — Thu, 02 Dec 2010 13:54:00 -0500

Research at the University of Utah could lead to burn treatment on the go that makes use of your body's own cells. Surgeons Amit Patel and Amalia Cochran are researching the use of stem cells in conjunction with several chemicals as a spray-on jelly which has, in early testing, shown to accelerate the healing process of burns. While the team is starting with small burns, its goal is to be able to provide fast and effective, actual regeneration of a patient's own cells to be grafted onto large area burns. Video of the project is after the break.

Filed under: Alt

Comments

Stem cell therapy restores British man's eyesight

Vlad Savov — Wed, 23 Dec 2009 04:27:00 -0500

Russell Turnbull, now 38, lost almost all the sight in his right eye after trying to break up a fight and being sprayed with ammonia 15 years ago. The result for him was what's known as Limbal Stem Cell Deficiency, which caused him great pain, the need for therapeutic treatment, and economic dependency. Good news for Russell is that he can put all that behind him now, after becoming one of the first recipients of a new stem cell grafting procedure, whereby healthy tissue from his left eye was implanted into his right and -- just like a video game medpack -- restored his vision to normal. For the moment, this treatment is limited to patients with at least one healthy eye, but given the pluripotent nature of stem cells, it is hoped that tissue from elsewhere in the body could one day be used to regenerate damaged parts, such as the cornea in this case. You may find further enlightenment in the video after the break.

Comments

DARPA teams up with Arteriocyte to create ominous-sounding blood pharming machine for the military

Laura June — Sat, 15 Nov 2008 03:31:00 -0500

DARPA's been running a blood pharming program for quite awhile now, but it's gotten a real kick start this week with the announcement of a partnership with Cleveland-based biotech company Arteriocyte. Arteriocyte, it seems, has developed a Nanofiber Based System, or NANEX, a technology that enables the production of red blood cells without a donor. The two companies hope research will eventually lead to an "in theatre" blood-making machine for the military. So, if there's no donor, where do the progenitor cells come from? Well, that's a little hazy at this point, though Arteriocyte developed the NANEX using "blood of the umbilical cord" (stem cells), but we don't know what will fuel the final product. Personally, we hope they can squeak out a way to do it using the less controversial "blood of the dragon."

[Via CNet]

Filed under: Misc

Comments

Scientists unveil bio-inkjet printer for stem cells, creating bone-type cells

Cyrus Farivar — Mon, 11 Dec 2006 22:01:00 -0500

A bioengineering team from Carnegie Mellon University and the Pittsburgh School of Medicine have presented a way to employ techniques based on inkjet printers to help stem cells become bone tissue cells. The team uses a set of inkjet-style streams to shoot little bits of proteins (like droplets of printer ink) on top of nurturing proteins (think of them as the paper) in a certain pattern. Then the team drops stems cells on top of the whole concoction, which depending on what bio-ink was used, can turn into bone-type cells or potentially even other cell types. While human trials are still a ways off, let's just hope that bio-ink cartridges aren't nearly as much of a scam as regular inkjet cartridges are when they reach that point.

[Via NewScientist]

Filed under: Misc

Comments