Staying healthy is a lot like medieval warfare. Cells vs viruses. There are cells defending their castles and viruses trying to break through. If a sneaky virus manages to attack a cell, the cell fights it and notifies all the other castles about what to build to defend it. Man, learning about biology is so much easier when you have cute animations like this making it look like Game of Thrones.
To get a super-detailed X-ray view inside a cell—right down to the individual molecules—scientists dunk the cell they’re looking at in preservative chemicals. That not only kills the cell, it changes its internal structure ever so slightly, meaning researchers aren’t getting an exact look at the cell’s natural state. Now, scientists at Germany’s DESY Research Center have found a way around that, with a technique that’s produced the world’s first X-ray of an individual living cell.
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Scientists have long been toiling to create artificial life, managing to produce man-made cell walls and even synthetic DNA. But now, a team of chemists has produced a functioning cell made from polymers.
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Every year, GE Healthcare runs a competition to find the best microscopic cell images of the year—and here are some of our favorites from the shortlist.
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While 31-year-old Henrietta Lacks laid in a hospital bed, dying of cervical cancer, doctors took two samples of the tumor cells growing inside her. 62 years later, those cells are still growing and have served as the foundation for countless experiments, including vaccine development and drug safety trials. Problem is, Henrietta Lacks had no idea this had happened, and neither did her family until 1973, when a scientist called to ask for blood samples from her children as part of a genetic experiment. For the last 40 years not much has changed, researchers have continued to cultivate millions, if not billions or trillions, Mrs. Lacks’ cells, while her family has sought information, a portion of the proceeds and, most importantly, control over her genetic legacy. Now, the National Institutes of Health (NIH), has returned control of the cell line to her descendants, including granddaughter Jeri Lack Whye.
The primary impetus was the family’s privacy. One scientist managed to generate a rather full report of personal information about Lacks and her family after just a few minutes with some of her endlessly reproducing cells. This prompted the NIH to work out an agreement with her family that gives them partial control over the cell line. When companies request access to the genome, which is stored on NIH servers, the family will be consulted and asked for their consent before the data is delivered. There will be no financial compensation for the decades of profit made by medical institutions off their genetic heritage, but at least they’ll have some say in whether just who can go poking around in the family genes.
Photo courtesy of The Henrietta Lacks Foundation
Via: The Verge
Source: Reuters, New York Times
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