Mucosal response in African catfish after administration of Vibrio anguillarum O2 antigens via different routes

Vervarcke, Stefaan; Ollevier, Frans; Kinget, Renaat; Michoel, Armand

doi:10.1016/j.fsi.2004.06.004

Cited by 45 publications

(20 citation statements)

References 19 publications

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“…Thus far, anal intubation has been used successfully for vaccine (Crosbie & Nowak 2004, Vervarcke et al 2005 or immunomodulator (Swan et al 2008) delivery in fish. However, peranal parasite transmission has only been reported for the microsporidian Loma salmonae (Shaw et al 1998) and this is the first report on this type of transmission for a myxosporean.…”

Section: Discussionmentioning

confidence: 99%

Novel horizontal transmission route for Enteromyxum leei (Myxozoa) by anal intubation of gilthead sea bream Sparus aurata

Estensoro¹,

Redondo²,

Álvarez-Pellitero³

et al. 2010

Dis. Aquat. Org.

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The aim of the present study was to determine whether Enteromyxum leei, one of the most threatening parasitic diseases in Mediterranean fish culture, could be transmitted by peranal intubation in gilthead sea bream Sparus aurata L. Fish were inoculated either orally or anally with intestinal scrapings of infected fish in 3 trials. Oral transmission failed, but the parasite was efficiently and quickly transmitted peranally. Prevalence of infection was 100% at 60 d post inoculation (p.i.) in Trial 1 under high summer temperature (22 to 25°C; fish weight = 187.1 g), and 85.7% in just 15 d p.i. in Trial 3 using smaller fish (127.5 g) at autumn temperature (19 to 22°C). In Trial 2, prevalence reached 60% at 60 d p.i. in the group reared at constant temperature (18°C), whereas no fish was infected in the group that was kept at low winter temperature (11 to 12°C), although infection appeared (46.1% at 216 d p.i.) when temperature increased in spring. The arrested development at low temperature has important epidemiological consequences, as fish giving false negative results in winter can act as reservoirs of the parasite. Histopathological examination showed a posterior-anterior intestinal gradient in the progression of the infection, in terms of both intensity and parasite maturation. Thus, peranal intubation provides a very uniform, reliable and faster mode of transmission of E. leei than the commonly used transmission methods (cohabitation, exposure to infected effluent and oral inoculation), which require long exposure times or give variable and unpredictable results.

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Section: Discussionmentioning

confidence: 99%

Novel horizontal transmission route for Enteromyxum leei (Myxozoa) by anal intubation of gilthead sea bream Sparus aurata

Estensoro¹,

Redondo²,

Álvarez-Pellitero³

et al. 2010

Dis. Aquat. Org.

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“…It has been shown in various situations that immersion vaccination of teleosts invokes a stronger local immune response than does intraperitoneal vaccination in the absence of powerful adjuvants [7,55,56]. Furthermore, the differences in cell populations observed between the gills and posterior intestine would argue for a compartmentalisation of the mucosal immune system in halibut.…”

Section: Discussionmentioning

confidence: 99%

Immune- and enzyme histochemical characterisation of leukocyte populations within lymphoid and mucosal tissues of Atlantic halibut (Hippoglossus hippoglossus)

Grove

Johansen

Reitan

et al. 2006

Fish & Shellfish Immunology

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“…Another vibrio bacterin was tested in African catfish ( Clarias gariepinus ) by different routes: anal, oral, immersion and i.p. (Vervarcke et al, 2005). Although gut mucosal responses were not measured, specific Ig responses detected in bile reflected the response in the gut.…”

Section: Mucosal B Cell Responses In Gutmentioning

confidence: 99%

B cells and their role in the teleost gut

Parra

Korytář

Takizawa

et al. 2016

Developmental & Comparative Immunology

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Mucosal surfaces are the main route of entry for pathogens in all living organisms. In the case of teleost fish, mucosal surfaces cover the vast majority of the animal. As these surfaces are in constant contact with the environment, fish are perpetually exposed to a vast number of pathogens. Despite the potential prevalence and variety of pathogens, mucosal surfaces are primarily populated by commensal non-pathogenic bacteria. Indeed, a fine balance between these two populations of microorganisms is crucial for animal survival. This equilibrium, controlled by the mucosal immune system, maintains homeostasis at mucosal tissues. Teleost fish possess a diffuse mucosa-associated immune system in the intestine, with B cells being one of the main responders. Immunoglobulins produced by these lymphocytes are a critical line of defense against pathogens and also prevent the entrance of commensal bacteria into the epithelium. In this review we will summarize recent literature regarding the role of B-lymphocytes and immunoglobulins in gut immunity in teleost fish, with specific focus on immunoglobulin isotypes and the microorganisms, pathogenic and non-pathogenic that interact with the immune system.

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Mucosal response in African catfish after administration of Vibrio anguillarum O2 antigens via different routes

Cited by 45 publications

References 19 publications

Novel horizontal transmission route for Enteromyxum leei (Myxozoa) by anal intubation of gilthead sea bream Sparus aurata

Novel horizontal transmission route for Enteromyxum leei (Myxozoa) by anal intubation of gilthead sea bream Sparus aurata

Immune- and enzyme histochemical characterisation of leukocyte populations within lymphoid and mucosal tissues of Atlantic halibut (Hippoglossus hippoglossus)

B cells and their role in the teleost gut

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