When i first read this
news headline, i thought it was
fiction, just like the
glowing rats in the
comedy movie
"Senseless" but I was wrong.
Glowing bunnies or rabbits are a
successful early step in a project aimed at engineering mammals that produce medicines
in their milk.
in their milk.
In normal light, the eight rabbits
all look the same—white, cute, and begging to be squeezed. But switch to black
light, and two stand out by brightly glowing green.
The rabbits were born last month at the
University of Istanbul as part of collaboration between universities in Turkey
and Hawaii. Sea jelly genes engineered into the bunnies’ genomes bestowed them
with their luminous abilities.
The glowing rabbits are certainly
not the first transgenic animals to light the night—researchers have already shown
off glowing dogs, monkeys, cats, and many other species, including rabbits.
The point of the flashy genetic engineering
is not to give pet store owners a new product to hawk, but rather to confirm
that the techniques researchers use to transfer genes into a genome are
working. And in many cases, the greater goal is to develop new ways to study or
treat disease.
As reported by The Guardian , the ultimate
goal of the Turkish and Hawaiian collaboration is to refine techniques that
could one day lead to animals capable of producing medicines in their milk. As
Stefan Moisyadi, a University of Hawaii researcher involved in the project told
The Guardian:
“The final goal is to develop
animals… to produce beneficial molecules in their milk that can be cheaply extracted,
especially in countries that cannot afford big pharma plants that make drugs,
that usually cost $1bn to build, and be able to produce their own protein-based
medication in animals.”
Other groups have already seen some success
with this idea, and in 2009, the FDA approved a drug that is purified from the
milk of a transgenic goat.
In a TV news interview, Moisyadi
also mentions the potential for biologic drugs, such as replacement
blood-clotting enzymes for people with hemophilia, to be produced more cheaply
in transgenic animals than they are today. Another cool idea in this space is
to develop transgenic goats to produce malaria vaccine in their milk. Last
year, researchers at Texas A&M University reported that they had indeed produced
such a goat ; the question remained whether her daughters would also be capable
of making the life-saving medication. If proven successful and safe, the idea
would be to take the goat’s offspring (or other goats like her) to developing
countries with malaria outbreaks as a hardy source of vaccine.
Credit: Susan Young of
MIT Technology Review
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