Scientists finally have evidence of mysterious immune cells in humans

Scientists finally have evidence of mysterious immune cells in humans

While working to assign each cell to human body, Scientists have discovered an elusive type of immune cell that first emerges in the uterus. The existence of such cells in humans has been hotly debated – so far.

These mysterious cells, known as B-1 cells, were first discovered in mice in the 1980s, according to a 2018 review in The Journal of Immunology. These cells appear early in the development of the mouse, in the uterus, and produce various antibodies when activated. Some of these antibodies attach to the cells of the mouse itself and help remove dead and dead cells from the body. Activated B-1 cells also produce antibodies that act as a first line of defense against pathogens such as viruses and bacteria.

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