title: Development of gut immunoglobulin A production in piglet in response to innate and environmental factors.
abstract: The current review focuses on pre- and post-natal development of intestinal immunoglobulin A (IgA) production in pig. IgA production is influenced by intrinsic genetic factors in the foetus as well as extrinsic environmental factors during the post-natal period. At birth, piglets are exposed to new antigens through maternal colostrums/milk as well as exogenous microbiota. This exposure to new antigens is critical for the proper development of the gut mucosal immune system and is characterized mainly by the establishment of IgA response. A second critical period for neonatal intestinal immune system development occurs at weaning time when the gut environment is exposed to new dietary antigens. Neonate needs to establish oral tolerance and in the absence of protective milk need to fight potential new pathogens. To improve knowledge about the immune response in the neonates, it is important to identify intrinsic and extrinsic factors which influence the intestinal immune system development and to elucidate their mechanism of action.
authors.affiliation: Vaccine and Infectious Disease Organization (VIDO), Home of the International Vaccine Centre (InterVac), University of Saskatchewan, 120 Veterinary Road, S7N 5E3 Saskatoon, Saskatchewan, Canada. Electronic address: benoit.levast@mcgill.ca.
authors.forename: Benoît
authors.initials: B
authors.lastname: Levast
authors.affiliation: Institut National de la Recherche Agronomique (INRA), UMR1282 ISP, Nouzilly, France; Université de Tours, UMR1282 ISP, Tours, France.
authors.forename: Mustapha
authors.initials: M
authors.lastname: Berri
authors.affiliation: Vaccine and Infectious Disease Organization (VIDO), Home of the International Vaccine Centre (InterVac), University of Saskatchewan, 120 Veterinary Road, S7N 5E3 Saskatoon, Saskatchewan, Canada.
authors.forename: Heather L
authors.initials: HL
authors.lastname: Wilson
authors.affiliation: Vaccine and Infectious Disease Organization (VIDO), Home of the International Vaccine Centre (InterVac), University of Saskatchewan, 120 Veterinary Road, S7N 5E3 Saskatoon, Saskatchewan, Canada.
authors.forename: François
authors.initials: F
authors.lastname: Meurens
authors.affiliation: Institut National de la Recherche Agronomique (INRA), UMR1282 ISP, Nouzilly, France; Université de Tours, UMR1282 ISP, Tours, France.
authors.forename: Henri
authors.initials: H
authors.lastname: Salmon
mesh_terms: D000818:Animals; D000831:Animals, Newborn; D004032:Diet; D004781:Environmental Exposure / Q000009:adverse effects; D005333:Fetus; D059647:Gene-Environment Interaction; D007107:Immune System / Q000196:embryology / Q000276:immunology*; D007108:Immune Tolerance; D007113:Immunity, Innate; D007070:Immunoglobulin A / Q000378:metabolism*; D007422:Intestines / Q000276:immunology*; D013552:Swine / Q000276:immunology*
chemical_list: D007070:Immunoglobulin A
keywords: Gut flora; IgA; Milk; Mucosal immunity; Pig; Pre- and post-natal period