Research Shows That Human Immune System Uses Ancient Family of Cell Death Proteins (Gasdermins) Also Found in Bacteria; Study Illustrates Conservation of Immune System’s Cell Death Mechanisms Originating Billions of Years Ago in Single-Celled Organisms

The human immune system, that marvel of complexity, subtlety, and sophistication, includes a billion-year-old family of proteins used by bacteria to defend themselves against viruses, scientists at Dana-Farber Cancer Institute, Harvard, and in Israel have discovered. The findings, published online on January 13, 2022 in Science, are the latest in a growing body of evidence that components of our immune system--as advanced a shield against disease as exists on the planet--evolved early in ancient forms of life. The study shows that the immune system absorbed already existing elements and, over eons of evolution, put them to use in novel ways to meet the requirements of creatures as biologically complicated as human beings. The Science article is titled “Bacterial Gasdermins Reveal an Ancient Mechanism of Cell Death.”

Login Or Register To Read Full Story