Health
The Very First Signs of an Immune Response Have Been Filmed in a Developing Embryo – ScienceAlert
Even as a hollow ball of embryonic cells, developing fish and mammals are not entirely defenceless.

Even as a hollow ball of embryonic cells, developing fish and mammals are not entirely defenceless.
The very first tissue, formed on the surface of a vertebrate blastula, has been shown to possess an innate immune response.
Incredible new research has shown that long before the development of organs or specialized immune cells, this simple protective layer, known as the epithelium, can reach out with its arm-like protrusions and detect, ingest, and destroy defective cells – helping to increase the…
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