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Innate Immune System / Innate immunity

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Innate immunity, once overlooked, is now recognized as crucial in immunology. It serves as the first line of defense against infection in vertebrates and is the sole defense mechanism in invertebrates and plants. Innate immunity also plays a vital role in maintaining homeostasis, shaping the microbiota, and is involved in various diseases. The study of innate immunity has expanded our understanding of the immune system beyond vertebrates to include all metazoans, plants, and even prokaryotes.
Pradeu et al. 2024 Immunity 57(4): 613-631

The innate immune system in eukaryotes and bacteria (gut microbiota) is similar. It is part of the broad arse…