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Acta biochimica et biophysica Sinica, 2014-07, Vol.46 (7), p.623-626
Ort / Verlag
China
Erscheinungsjahr
2014
Quelle
MEDLINE
Beschreibungen/Notizen
Nature consists primarily of living materials, many of which are pathogenic microorganisms capable of killing and converting other organisms into copies of themselves . For self-defense, eukaryotes have gradually evolved immune systems, including the innate and adaptive immune systems . Innate immunity has been found in plants, fungi, and metazoans; while jawed vertebrates have an evolved adaptive immune system in addition to the innate immunity defense . Agnathans, represented by lamprey and hagfish, are the oldest vertebrates that possess the adaptive immune defenses, although whether TCR and BCR exist in jawless vertebrates remains unknown.