Cells from gallbladder reprogrammed to produce insulin

[DCUK NewsBot]

Human gallbladder cells have been reengineered to produce insulin by American scientists. The reprogrammed cells behaved "similarly to beta cells" in a laboratory experiment where researchers were able to create insulin in response to rising blood glucose levels. The technique could offer a future alternative to islet call transplants, where immunosuppressant drugs are required afterwards. However, there are many hurdles that first need to be overcome. One of these is the short lifespan of the cells - most of them died after four weeks. The scientists also noted that some of the newly-created genes were more active than they needed to be. The research was carried out by a team led by Professor Markus Grompe and Dr Feorillo Galivo from Oregon Health and Science University. They harvested cells from a donated human gallbladder and then, with the help of a virus, transported four new genes into the cells. The gallbladder, which is located by the abdomen, stores and releases bile which helps the body to digest dietary fat. They then analysed the results and found that the cells behaved like insulin-producing beta cells. These newly-created cells were also placed into mice, but more work is required to see if the cells respond to the animals' blood glucose levels. "In summary, we have developed, for the first time, a reliable and robust genetic reprogramming and culture expansion of primary human GBCs [gallbladder and cystic duct] - derived from multiple unrelated donors - into pancreatic [beta-like] cells," said the researchers. They added that the "human gallbladder is a potentially rich source of reprogrammable cells for autologous cell therapy in diabetes". A spokesman for leading type 1 diabetes charity JDRF said of the findings: "The researchers will now need to tweak the technique to find a way to make the gallbladder cells more similar to beta cells, and to see whether the reprogrammed cells can control blood glucose levels in mice." The study was published in the journal PLOS One.

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[LittleGreyCat]

Virus with designer genes.

I wonder which (if any) other cells and organs this might reprogramme?

I suppose the big test would be to replace these in the original gallbladder and see what happens next.
Reprogramming in the laboratory is unfortunately a long way away from having a cost effective and efficient solution for real patients.

Are we looking at the time when you have a monthly injection of a designer virus?
Or would that reprogramme too much of the gallbladder?

 

[ickihun]

My only concern would be if the work of the new cells in the gallbladder would then stop the gallbladder malfunctioning. Can we do without a working gallbladder?

 

[LittleGreyCat]

My only concern would be if the work of the new cells in the gallbladder would then stop the gallbladder malfunctioning. Can we do without a working gallbladder?

Yes, we can do without a working gallbladder because it is standard surgery to remove it if you have an infection and/or persistent gallstones.

 

[ickihun]

Yes, we can do without a working gallbladder because it is standard surgery to remove it if you have an infection and/or persistent gallstones.

Does it not affect the immune system or something thou? Tablets for life?
They'd be better off reprogramming the liver instead and putting an end to liver dumps when most diabetics dont need the extra glucose dumped into their bloodstream.
Only meds like insulin give hypos. Liver contributes to hypers!