A new story from The A&P Professor

The A&P Professor
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Automatic TRANSCRIPT

It's interesting the way science works. I'm always fascinated. How when things don't go quite as expected can turn into a big and maybe important scientific discovery and the other thing. That intrigues me about it as well. Just what they found in how it works and that relates to this idea in immunology that all cells have some immune capabilities. I mean there's very primitive thing. Probably the original cells from which we have evolved over time at least built up some defensive mechanisms now later on when you get to a complex multicellular organism like the human body. Now we see. Some professional sells whose lives are dedicated to immune defences those cells that we sometimes talk about in amp whose main function is to be defensive and we sometimes in zeroing in on them lose sight of the fact that every single cell can defend itself at least in some ways we might mention the interferon process for example. We know that infected cells can send signals to nearby cells to warn them that they've been infected and that can trigger those nearby cells to activate their defenses and maybe they can resist lease at some level resist infection by the microbe that was hitting out infecting that original. Sell that released. The interferon was actually that mechanism. Some scientists were looking at trying to figure out the details of what goes on in the many varieties of interferon processes that might be occurring in the human body so they were looking at epithelial cells and they were scanning across genes that they thought were producing proteins involved in this interferon process in when they did that they ran across a gene for protein called. Apo l. three it turns out that a pl three acts as a detergent. It is like so it can dissolve lipids and lipid films and we know where to find lipid films in bodies. Don't wait yes. We know that they're forming cell membranes. Will you know what. There's a layer of the salmonella bacteria which is what they were using in these experiments..

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