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We Have The Technology: Functioning Muscle Cells Made in Lab


They are also self-healing(more later)!  The mouse muscle fiber grew from progenitor satellite cells which exist in mature living muscle.  The trick, according to the Duke researchers, required finding “the perfect environment for muscle growth” for the satellite cells.  Specifically they needed “well-developed contractile muscle fibers” included in the mix with the immature cells.  Once the cells grew into mature fibers themselves, they were grafted into mice where the new muscle adapted function and strength.  As for self-healing, an ex vivo study in which new-grown fibers were damaged by toxin, they recovered contractile function after being re-exposed to the milieu of immature cells.

(fluorescently stained muscle fiber. Image credit: Duke University)

(Fluorescently stained muscle fiber. Image credit: Duke University)

While translation to human therapies is still in the future, the first steps have been made.  Read more at the article on BBC.  (All quotes in this entry are from the BBC article)


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1 Comment

  1. Rocco Brown

    April 6, 2014 at 6:33 AM

    Great post, thanks for sharing!

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