What vaccination studies tell us about immunological memory within the innate immune system of cultured shrimp and crayfish

The possibility of immunological memory in invertebrates is a topic that has recently attracted a lot of attention. Today, even vertebrates are known to exhibit innate immune responses that show memory-like properties, and since these responses are triggered by cells that are involved in the innate...

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Bibliographic Details
Published in:Developmental and comparative immunology 2018-03, Vol.80, p.53-66
Main Authors: Chang, Yu-Hsuan, Kumar, Ramya, Ng, Tze Hann, Wang, Han-Ching
Format: Article
Language:English
Subjects:
Animals
Antigens, Bacterial - genetics
Antigens, Bacterial - immunology
Aquaculture
Artemia - immunology
Astacoidea - immunology
Crayfish
Dscam
Immune priming
Immune response
Immune system
Immunity
Immunity, Innate
Immunologic Memory
Immunological memory
Immunological memory within the innate immune system
Immunology
Innate immunity
Invertebrates
Lymphocytes
Lymphocytes B
Lymphocytes T
Memory cells
Priming
RNA Interference - immunology
Shellfish
Shrimp
Studies
Vaccination
Vaccines
Vaccines, Subunit - immunology
Vertebrates
Vibrio - immunology
Vibrio Infections - immunology
Viral Vaccines - immunology
Virus Diseases - immunology
White spot syndrome virus 1 - immunology
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Summary:The possibility of immunological memory in invertebrates is a topic that has recently attracted a lot of attention. Today, even vertebrates are known to exhibit innate immune responses that show memory-like properties, and since these responses are triggered by cells that are involved in the innate immune system, it seems that immune specificity and immune memory do not necessarily require the presence of B cells and T cells after all. This kind of immune response has been called “immune priming” or “trained immunity”. In this report, we review recent observations and our current understanding of immunological memory within the innate immune system in cultured shrimp and crayfish after vaccination with live vaccine, killed vaccine and subunit vaccines. We also discuss the possible mechanisms involved in this immune response. •Invertebrates are known to exhibit innate immune responses that exhibit memory-like properties.•“Immune priming” describes the immunological memory arising from the innate immune responses after infection or vaccination.•Specific immune memory effects in shrimp and crayfish last for between 7 and 30 days.•Dscam is probably involved in trained immunity in crustaceans, but the mechanism remains elusive.
ISSN:0145-305X
1879-0089
DOI:10.1016/j.dci.2017.03.003