Researchers Successfully Achieve Suspended Animation With Mouse Embryos (engadget.com) 25
"It was completely surprising. We were standing around in the tissue culture room, scratching our heads, and saying 'Wow, what do we make of this?'" An anonymous reader quotes Engadget's report on new research with "huge implications":
A team of scientists from the University of California, San Francisco only wanted to slow down mice embryos' cell growth in the lab. Instead, they managed to completely pause their development, putting the blastocysts (very early embryos) in suspended animation for a month. What's more, they found that the process can put stem cells derived from the blastocysts in suspended animation as well, [and] the researchers were able to prove that the embryos can develop normally even after a pause in their growth. Team member Ramalho-Santos from the Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research said... "To put it in perspective, mouse pregnancies only last about 20 days, so the 30-day-old 'paused' embryos we were seeing would have been pups approaching weaning already if they'd been allowed to develop normally."
The new research could lead to better treatments for damaged organs and even aging, according to the article. (Besides, of course, its science fiction-y implications for long-distance space travel...)
The new research could lead to better treatments for damaged organs and even aging, according to the article. (Besides, of course, its science fiction-y implications for long-distance space travel...)
"long-distance space travel" (Score:3)
For that sort of thing, bacteria are a much better bet. Much more hardy than higher Earth-evolved species and proven to survive in suspended animation over the geological time-scales involved in interstellar travel. [extremescience.com]
Re: (Score:2)
Great, now you just need to explain what the point of sending bacteria on a long-distance space trip would be...
stockpiled stemcells (Score:5, Insightful)
It also means that we can now inexpensively stockpile stemcells without appreciable loss. Freezing is expensive, and it is costly in time and other resources to store and retrieve tissues that way.
Since this is a chemical doping technique, this would allow us to store regenerative stemcells much the way we store whole blood, or perhaps even longer, using simple refrigeration techniques.
This could have wide reaching implications in stemcell based regenerative medicine, since humans could inexpensively bank the cultures now.
Take a closer look at macropods... (Score:5, Interesting)
Depending on availability of water and food, mama roo (and mama wallaby) can suspend her regular four-week pregnancy by up to two years (see embyonic diapause [wikipedia.org] — it is not unique to marsupials).
This suggests two things:
Cancer help (Score:2)
From the article "They used a drug that inhibited the activities of a protein called mTOR, which regulates different cellular processes. By inhibiting the protein, they also inhibit the cells' activities."
I wonder if this might prove useful for stopping runaway tumors.
Mice on ice. (Score:2)
Nice. [ucsf.edu]
Who needs culture (Score:5, Funny)
We were standing around in the tissue culture room, scratching our heads
Well, I suppose that's one way to get samples.
Space travel (Score:2)
Ageing is not the only problem of space travel. When outside of Earth magnetic field, the space traveler is hit by high energy cosmic particle that damage DNA.
And while you are in "animation suspension", things may get worse because cellular DNA repair mechanism are switched off.
Solution for critical illness during pregnancy? (Score:2)
It must be Pinky and the Brain! (Score:3)
The song they were singing... (Score:2)