00:00Scientists just discovered an immune cell that fights infection by blowing itself up.
00:04Stanford researchers found these cells called ruptoblasts while studying planarian flatworms,
00:10tiny aquatic animals famous for regenerating their whole bodies from a single slice.
00:15When triggered by a hormone called activin, ruptoblasts explode within minutes,
00:20releasing toxic substances that kill nearby bacteria before vanishing completely without a trace.
00:27Unlike human T-cells, which come from bone marrow,
00:31ruptoblasts are glandular cells that build a violent surge of calcium right before they detonate.
00:37Researchers tested the cells against E. coli bacteria, human kidney cells and mouse blood,
00:42and found the destruction stayed tightly contained, with no spreading or lasting damage.
00:48Scientists say this ancient defense system, hidden inside a creature that survived hundreds of millions of years,
00:55could inspire entirely new laser-targeted treatments for infections and tumors.
01:00Disclosure. This video contains stock footage and content created or enhanced using AI-assisted tools.
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