Fish mucosal immunity: gill

Koppang, Erling Olaf; Kvellestad, Agnar; Fischer, Uwe

doi:10.1016/b978-0-12-417186-2.00005-4

Cited by 81 publications

(59 citation statements)

References 211 publications

(239 reference statements)

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“…Aquatic environments, which are inhabited by teleost fish, provide more nutrients to microbes than land ecosystems and therefore are more conducive to bacterial growth ( 1 ). Therefore, potential pathogens mostly enter the bodies of fish across their mucosal epithelial barriers including the gills, gastrointestinal system or skin lesions ( 2 ). Unlike invertebrates, teleost fish has evolved both innate and adaptive immunity to protect themselves against pathogens residing in their aquatic environment.…”

Section: Introductionmentioning

confidence: 99%

Immunoglobulins, Mucosal Immunity and Vaccination in Teleost Fish

et al. 2020

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Due to direct contact with aquatic environment, mucosal surfaces of teleost fish are continuously exposed to a vast number of pathogens and also inhabited by high densities of commensal microbiota. The B cells and immunoglobulins within the teleost mucosa-associated lymphoid tissues (MALTs) play key roles in local mucosal adaptive immune responses. So far, three Ig isotypes (i.e., IgM, IgD, and IgT/Z) have been identified from the genomic sequences of different teleost fish species. Moreover, teleost Igs have been reported to elicit mammalian-like mucosal immune response in six MALTs: gut-associated lymphoid tissue (GALT), skin-associated lymphoid tissue (SALT), gill-associated lymphoid tissue (GIALT), nasal-associated lymphoid tissue (NALT), and the recently discovered buccal and pharyngeal MALTs. Critically, analogous to mammalian IgA, teleost IgT represents the most ancient Ab class specialized in mucosal immunity and plays indispensable roles in the clearance of mucosal pathogens and the maintenance of microbiota homeostasis. Given these, this review summarizes the current findings on teleost Igs, MALTs, and their immune responses to pathogenic infection, vaccination and commensal microbiota, with the purpose of facilitating future evaluation and rational design of fish vaccines.

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Section: Introductionmentioning

confidence: 99%

Immunoglobulins, Mucosal Immunity and Vaccination in Teleost Fish

et al. 2020

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“…The fish gill is an essential immune-competent organ that plays a crucial role in respiration, homeostatic equilibrium and immune response [1]. Studies demonstrate that disturbance to fish gills leads to a decline in growth [2] and even an increase in the mortality rate [3].…”

Section: Introductionmentioning

confidence: 99%

Effects of dietary protein levels on the disease resistance, immune function and physical barrier function in the gill of grass carp ( Ctenopharyngodon idella ) after challenged with Flavobacterium columnare

Feng

Jiang

et al. 2016

Fish & Shellfish Immunology

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“…Compared with water, digestive tract is an ecosystem far richer in nutrients and therefore more favourable for the growth of the majority of bacteria (Wang, Li, & Lin, ). The living but non‐proliferating Lactobacillus in water is also not easy to enter fish through the gills, because it may be easily recognized as a foreign matter and excluded by the mucosal immunity of gill‐associated lymphoid tissues (Koppang, Kvellestad, &Fischer, ).…”

Section: Discussionmentioning

confidence: 99%

The administration of Lactobacillus plantarum directly to food: An effective way to improve the survival and growth of juvenile lined seahorses ( Hippocampus erectus )

et al. 2019

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Previously, we found Lactobacillus plantarum had probiotic effects on lined seahorse (Hippocampus erectus) juveniles by the addition Lactobacillus directly into rearing seawater containing juveniles and their food (i.e. copepods). However, how the juveniles consumed Lactobacillus, directly from water or from copepods in whose guts Lactobacillus may have accumulated by ingestion, is still unclear. To clarify this, three experiments were successively carried out in this study. In the first experiment, the manner by which juveniles consumed Lactobacillus, namely, directly from food, was discovered via a 2 × 2 factorial design with two factors of water and food, and two levels with and without L. plantarum. In the second experiment, a 5 × 4 factorial design with five levels of L. plantarum doses (D: 5, 10, 20, 40 and 80 × 108 cfu/L) and four levels of enrichment time (T: 0.5, 1.0, 1.5 and 2.0 hr) was conducted to analyse lactic acid bacteria (LAB) contents in the enriched copepods under different treatments. In the third experiment, six kinds of Lactobacillus‐enriched copepods chosen from the second experiment that carried significantly different LAB contents were fed to juveniles, and it was found that the copepods containing LAB greater than 5 log10colonies/g had the most improved effects for survival and growth. In conclusion, the effective manner of L. plantarum administration in seahorses is by the addition to their food. Additionally, D40 * T1.0, whose LAB content was more than 5 log10colonies/g, is generally the most economic copepod treatment for improving survival and growth in H. erectus rearing.

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Fish mucosal immunity: gill

Cited by 81 publications

References 211 publications

Immunoglobulins, Mucosal Immunity and Vaccination in Teleost Fish

Immunoglobulins, Mucosal Immunity and Vaccination in Teleost Fish

Effects of dietary protein levels on the disease resistance, immune function and physical barrier function in the gill of grass carp ( Ctenopharyngodon idella ) after challenged with Flavobacterium columnare

The administration of Lactobacillus plantarum directly to food: An effective way to improve the survival and growth of juvenile lined seahorses ( Hippocampus erectus )

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