Reactions of sera from immunised and experimentally infected thick-lipped grey mullet,Chelon labrosus(Risso, 1826), with isolated proteins ofCryptocotyle lingua(Creplin, 1825)

Changes in Host and Parasite‐Derived Cellular and Extracellular Matrix Components in Developing Cysts of Myxobolus pendula (Myxozoa)

“…This is followed by fibroplasia and finally, recruitment of lymphocytes (Sommerville 1981). One possible mechanism for immune evasion in fish infected with encysted metacercaria is sequestration of parasite antigens inside the cyst wall, while other antigens are sequentially released from within the cyst, resulting in antigenic variation that confounds the host immune system (Wood and Matthews 1996). While the cystic structure and immunological processes in M. pendula are different from those of digenean parasites, the protective ECM that is produced is also probably selectively permeable since nutrients must diffuse inward to nourish the growing parasite.…”

“…Fig. 4, 7 and 14) confounds the host immune system (Wood and Matthews 1996). While the cystic structure and immunological processes in M. pendula are different from those of digenean parasites, the protective ECM that is produced is also probably selectively permeable since nutrients must diffuse inward to nourish the growing parasite.…”

Living off a fish: A trade-off between parasites and the immune system

“…However, the presence of these molecules on the surface of flukes that had been cultured for 24 h suggested that they may also be parasite derived [101]. Similarly, some Cryptocotyle lingua proteins recognized as immunogens in rabbits are not recognized by mullet, and could be a contributory factor in the persistence of metacercariae in the fish host for periods in excess of 2 years [102]. The first studies on the immune response against myxosporeans have suggested the possibility that some parasites might exhibit host antigens as a mimicry survival strategy [103].…”