Sponge - Vital Functions - "Immune" System

"Immune" System

Sponges do not have the complex immune systems of most other animals. However they reject grafts from other species but accept them from other members of their own species. In a few marine species, gray cells play the leading role in rejection of foreign material. When invaded, they produce a chemical that stops movement of other cells in the affected area, thus preventing the intruder from using the sponge's internal transport systems. If the intrusion persists, the grey cells concentrate in the area and release toxins that kill all cells in the area. The "immune" system can stay in this activated state for up to three weeks.

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Other articles related to "immune system, immune":

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La Jolla Institute For Allergy And Immunology - Research - Immune Epitope Database and Analysis Resource (IEDB)
... Disease is home to the world's largest database on how the immune system responds to infectious diseases, the Immune Epitope Database and Analysis Resource (IEDB) ... to be intuitive and easily searched and to propel the dissemination of immune epitope information ...
La Jolla Institute For Allergy And Immunology - Research - T Cell Activation
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LILRB3
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