Scientists Create Stem Cells Immune to HIV
Scientists have engineered HIV-immune stem cells that can carry T cells to different organs in the body, laying the groundwork for one day eliminating the virus from infected patients.
What's the Latest Development?
By engineering stem cells to be immune to HIV, scientists at UCLA have developed a method for targeting and suppressing cells in the body that contain HIV proteins. The researchers took "the 'killer' T cells that help fight infection from an HIV-infected individual and identified the molecule known as the T cell receptor, which guides the T cell in recognizing and killing HIV-infected cells." After injecting these modified stem cells into a human thalamus tissue that had been implanted in mice, they watched the number of T cells increase and the number of HIV-infected cells decrease.
What's the Big Idea?
The results of the study indicate that T cells, once they are couched in modified stem cells, are capable of migrating across organs to help eradicate HIV from different parts of the body. "We believe that this is the first step in developing a more aggressive approach in correcting the defects in the human T cell responses that allow HIV to persist in infected people," said lead investigator Scott Kitchen, an assistant professor of medicine in the division of hematology and oncology at UCLA. The research may lay the groundwork for entirely eradicating the virus from the body.
Photo credit: Wikimedia Commons
Could this be the long-awaited solution to economic inequality?
Under capitalism, the argument goes, it's every man for himself. Through the relentless pursuit of self-interest, everyone benefits, as if an invisible hand were guiding each of us toward the common good. Everyone should accordingly try to get as much as they can, not only for their goods but also for their labour. Whatever the market price is is, in turn, what the buyer should pay. Just like the idea that there should be a minimum wage, the idea that there should be a maximum wage seems to undermine the very freedom that the free market is supposed to guarantee.
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- According to some relatively new research, many of our early human cousins preceded Homo sapien migrations north by hundreds of thousands or even millions of years.
- Cross-breeding with other ancient hominids gave some subsets of human population the genes to contend and thrive in colder and harsher climates.
- Behavioral and dietary changes also helped humans adapt to cold climates.
It's unlikely that there's anything on the planet that is worth the cost of shipping it back
- In the second season of National Geographic Channel's MARS (premiering tonight, 11/12/18,) privatized miners on the red planet clash with a colony of international scientists
- Privatized mining on both Mars and the Moon is likely to occur in the next century
- The cost of returning mined materials from Space to the Earth will probably be too high to create a self-sustaining industry, but the resources may have other uses at their origin points
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