IgY-based antivenom against Bothrops alternatus: Production and neutralization efficacy
- Autores
- Leiva, Carlos Leónidas; Cangelosi, Adriana; Mariconda, Virginia Laura; Farace, Mariano Gabriel; Geoghegan, Patricia; Brero, María Luisa; Fernandez Miyakawa, Mariano Enrique; Chacana, Pablo Anibal
- Año de publicación
- 2019
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Antivenom for the treatment of bothropic snakebite is a priority for public health institutions from Latin America. An alternative to the conventional antivenom production is based on the use of egg yolk antibodies – IgY-technology – by immunizing laying hens. In this study, we produced, characterized and assessed the efficacy of IgY-based antivenoms against B. alternatus venom. Immunochemical studies (reactivity, avidity and antigen recognition pattern) as well as antivenom efficacy assays were performed. After the 3rd immunization, levels of specific IgY reached a maximum that was maintained throughout the observation period, while avidity indexes of the extracts increased after the successive immunizations. Furthermore, IgY against B. alternatus recognized protein complexes of the venom with high (>40 kDa), medium (20–40 kDa) and low (<20 kDa) molecular weights. IgY antivenoms obtained after 8 immunizations neutralized 35.65 μg of B. alternatus venom per mg of antivenom, while specific activities values ranged from 0.28 to 0.42. In conclusion, we produced and characterized IgY antivenoms capable of neutralizing the lethal activity of B. alternatus venom at a preclinical level. Thus, IgY-technology may allow the production of effective and affordable antivenoms fulfilling the urgent needs of many countries where conventional manufacture is unable to provide enough availability of antivenoms.
Fil: Leiva, Carlos Leónidas. Instituto Nacional de Tecnologia Agropecuaria. Centro de Investigacion En Ciencias Veterinarias y Agronomicas. Instituto de Patobiologia Veterinaria. - Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Pque. Centenario. Instituto de Patobiologia Veterinaria.; Argentina
Fil: Cangelosi, Adriana. Ministerio de Salud de la Nación. Administración Nacional de Laboratorios e Institutos de Salud; Argentina
Fil: Mariconda, Virginia Laura. Ministerio de Salud de la Nación. Administración Nacional de Laboratorios e Institutos de Salud; Argentina
Fil: Farace, Mariano Gabriel. Instituto Nacional de Tecnologia Agropecuaria. Centro de Investigacion En Ciencias Veterinarias y Agronomicas. Instituto de Patobiologia Veterinaria. - Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Pque. Centenario. Instituto de Patobiologia Veterinaria.; Argentina
Fil: Geoghegan, Patricia. Instituto Nacional de Tecnologia Agropecuaria. Centro de Investigacion En Ciencias Veterinarias y Agronomicas. Instituto de Patobiologia Veterinaria. - Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Pque. Centenario. Instituto de Patobiologia Veterinaria.; Argentina
Fil: Brero, María Luisa. Ministerio de Salud de la Nación. Administración Nacional de Laboratorios e Institutos de Salud; Argentina
Fil: Fernandez Miyakawa, Mariano Enrique. Ministerio de Salud de la Nación. Administración Nacional de Laboratorios e Institutos de Salud; Argentina. Instituto Nacional de Tecnologia Agropecuaria. Centro de Investigacion En Ciencias Veterinarias y Agronomicas. Instituto de Patobiologia Veterinaria. - Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Pque. Centenario. Instituto de Patobiologia Veterinaria.; Argentina
Fil: Chacana, Pablo Anibal. Instituto Nacional de Tecnologia Agropecuaria. Centro de Investigacion En Ciencias Veterinarias y Agronomicas. Instituto de Patobiologia Veterinaria. - Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Pque. Centenario. Instituto de Patobiologia Veterinaria.; Argentina - Materia
-
BOTHROPS ALTERNATUS
EGG YOLK
IGY ANTIBODY
SNAKE VENOM
SNAKEBITE
VENOM NEUTRALIZATION - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/147482
Ver los metadatos del registro completo
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IgY-based antivenom against Bothrops alternatus: Production and neutralization efficacyLeiva, Carlos LeónidasCangelosi, AdrianaMariconda, Virginia LauraFarace, Mariano GabrielGeoghegan, PatriciaBrero, María LuisaFernandez Miyakawa, Mariano EnriqueChacana, Pablo AnibalBOTHROPS ALTERNATUSEGG YOLKIGY ANTIBODYSNAKE VENOMSNAKEBITEVENOM NEUTRALIZATIONhttps://purl.org/becyt/ford/3.4https://purl.org/becyt/ford/3Antivenom for the treatment of bothropic snakebite is a priority for public health institutions from Latin America. An alternative to the conventional antivenom production is based on the use of egg yolk antibodies – IgY-technology – by immunizing laying hens. In this study, we produced, characterized and assessed the efficacy of IgY-based antivenoms against B. alternatus venom. Immunochemical studies (reactivity, avidity and antigen recognition pattern) as well as antivenom efficacy assays were performed. After the 3rd immunization, levels of specific IgY reached a maximum that was maintained throughout the observation period, while avidity indexes of the extracts increased after the successive immunizations. Furthermore, IgY against B. alternatus recognized protein complexes of the venom with high (>40 kDa), medium (20–40 kDa) and low (<20 kDa) molecular weights. IgY antivenoms obtained after 8 immunizations neutralized 35.65 μg of B. alternatus venom per mg of antivenom, while specific activities values ranged from 0.28 to 0.42. In conclusion, we produced and characterized IgY antivenoms capable of neutralizing the lethal activity of B. alternatus venom at a preclinical level. Thus, IgY-technology may allow the production of effective and affordable antivenoms fulfilling the urgent needs of many countries where conventional manufacture is unable to provide enough availability of antivenoms.Fil: Leiva, Carlos Leónidas. Instituto Nacional de Tecnologia Agropecuaria. Centro de Investigacion En Ciencias Veterinarias y Agronomicas. Instituto de Patobiologia Veterinaria. - Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Pque. Centenario. Instituto de Patobiologia Veterinaria.; ArgentinaFil: Cangelosi, Adriana. Ministerio de Salud de la Nación. Administración Nacional de Laboratorios e Institutos de Salud; ArgentinaFil: Mariconda, Virginia Laura. Ministerio de Salud de la Nación. Administración Nacional de Laboratorios e Institutos de Salud; ArgentinaFil: Farace, Mariano Gabriel. Instituto Nacional de Tecnologia Agropecuaria. Centro de Investigacion En Ciencias Veterinarias y Agronomicas. Instituto de Patobiologia Veterinaria. - Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Pque. Centenario. Instituto de Patobiologia Veterinaria.; ArgentinaFil: Geoghegan, Patricia. Instituto Nacional de Tecnologia Agropecuaria. Centro de Investigacion En Ciencias Veterinarias y Agronomicas. Instituto de Patobiologia Veterinaria. - Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Pque. Centenario. Instituto de Patobiologia Veterinaria.; ArgentinaFil: Brero, María Luisa. Ministerio de Salud de la Nación. Administración Nacional de Laboratorios e Institutos de Salud; ArgentinaFil: Fernandez Miyakawa, Mariano Enrique. Ministerio de Salud de la Nación. Administración Nacional de Laboratorios e Institutos de Salud; Argentina. Instituto Nacional de Tecnologia Agropecuaria. Centro de Investigacion En Ciencias Veterinarias y Agronomicas. Instituto de Patobiologia Veterinaria. - Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Pque. Centenario. Instituto de Patobiologia Veterinaria.; ArgentinaFil: Chacana, Pablo Anibal. Instituto Nacional de Tecnologia Agropecuaria. Centro de Investigacion En Ciencias Veterinarias y Agronomicas. Instituto de Patobiologia Veterinaria. - Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Pque. Centenario. Instituto de Patobiologia Veterinaria.; ArgentinaPergamon-Elsevier Science Ltd2019-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/147482Leiva, Carlos Leónidas; Cangelosi, Adriana; Mariconda, Virginia Laura; Farace, Mariano Gabriel; Geoghegan, Patricia; et al.; IgY-based antivenom against Bothrops alternatus: Production and neutralization efficacy; Pergamon-Elsevier Science Ltd; Toxicon; 163; 5-2019; 84-920041-0101CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S0041010119300972info:eu-repo/semantics/altIdentifier/doi/10.1016/j.toxicon.2019.03.020info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:54:03Zoai:ri.conicet.gov.ar:11336/147482instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 09:54:04.145CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
IgY-based antivenom against Bothrops alternatus: Production and neutralization efficacy |
title |
IgY-based antivenom against Bothrops alternatus: Production and neutralization efficacy |
spellingShingle |
IgY-based antivenom against Bothrops alternatus: Production and neutralization efficacy Leiva, Carlos Leónidas BOTHROPS ALTERNATUS EGG YOLK IGY ANTIBODY SNAKE VENOM SNAKEBITE VENOM NEUTRALIZATION |
title_short |
IgY-based antivenom against Bothrops alternatus: Production and neutralization efficacy |
title_full |
IgY-based antivenom against Bothrops alternatus: Production and neutralization efficacy |
title_fullStr |
IgY-based antivenom against Bothrops alternatus: Production and neutralization efficacy |
title_full_unstemmed |
IgY-based antivenom against Bothrops alternatus: Production and neutralization efficacy |
title_sort |
IgY-based antivenom against Bothrops alternatus: Production and neutralization efficacy |
dc.creator.none.fl_str_mv |
Leiva, Carlos Leónidas Cangelosi, Adriana Mariconda, Virginia Laura Farace, Mariano Gabriel Geoghegan, Patricia Brero, María Luisa Fernandez Miyakawa, Mariano Enrique Chacana, Pablo Anibal |
author |
Leiva, Carlos Leónidas |
author_facet |
Leiva, Carlos Leónidas Cangelosi, Adriana Mariconda, Virginia Laura Farace, Mariano Gabriel Geoghegan, Patricia Brero, María Luisa Fernandez Miyakawa, Mariano Enrique Chacana, Pablo Anibal |
author_role |
author |
author2 |
Cangelosi, Adriana Mariconda, Virginia Laura Farace, Mariano Gabriel Geoghegan, Patricia Brero, María Luisa Fernandez Miyakawa, Mariano Enrique Chacana, Pablo Anibal |
author2_role |
author author author author author author author |
dc.subject.none.fl_str_mv |
BOTHROPS ALTERNATUS EGG YOLK IGY ANTIBODY SNAKE VENOM SNAKEBITE VENOM NEUTRALIZATION |
topic |
BOTHROPS ALTERNATUS EGG YOLK IGY ANTIBODY SNAKE VENOM SNAKEBITE VENOM NEUTRALIZATION |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/3.4 https://purl.org/becyt/ford/3 |
dc.description.none.fl_txt_mv |
Antivenom for the treatment of bothropic snakebite is a priority for public health institutions from Latin America. An alternative to the conventional antivenom production is based on the use of egg yolk antibodies – IgY-technology – by immunizing laying hens. In this study, we produced, characterized and assessed the efficacy of IgY-based antivenoms against B. alternatus venom. Immunochemical studies (reactivity, avidity and antigen recognition pattern) as well as antivenom efficacy assays were performed. After the 3rd immunization, levels of specific IgY reached a maximum that was maintained throughout the observation period, while avidity indexes of the extracts increased after the successive immunizations. Furthermore, IgY against B. alternatus recognized protein complexes of the venom with high (>40 kDa), medium (20–40 kDa) and low (<20 kDa) molecular weights. IgY antivenoms obtained after 8 immunizations neutralized 35.65 μg of B. alternatus venom per mg of antivenom, while specific activities values ranged from 0.28 to 0.42. In conclusion, we produced and characterized IgY antivenoms capable of neutralizing the lethal activity of B. alternatus venom at a preclinical level. Thus, IgY-technology may allow the production of effective and affordable antivenoms fulfilling the urgent needs of many countries where conventional manufacture is unable to provide enough availability of antivenoms. Fil: Leiva, Carlos Leónidas. Instituto Nacional de Tecnologia Agropecuaria. Centro de Investigacion En Ciencias Veterinarias y Agronomicas. Instituto de Patobiologia Veterinaria. - Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Pque. Centenario. Instituto de Patobiologia Veterinaria.; Argentina Fil: Cangelosi, Adriana. Ministerio de Salud de la Nación. Administración Nacional de Laboratorios e Institutos de Salud; Argentina Fil: Mariconda, Virginia Laura. Ministerio de Salud de la Nación. Administración Nacional de Laboratorios e Institutos de Salud; Argentina Fil: Farace, Mariano Gabriel. Instituto Nacional de Tecnologia Agropecuaria. Centro de Investigacion En Ciencias Veterinarias y Agronomicas. Instituto de Patobiologia Veterinaria. - Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Pque. Centenario. Instituto de Patobiologia Veterinaria.; Argentina Fil: Geoghegan, Patricia. Instituto Nacional de Tecnologia Agropecuaria. Centro de Investigacion En Ciencias Veterinarias y Agronomicas. Instituto de Patobiologia Veterinaria. - Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Pque. Centenario. Instituto de Patobiologia Veterinaria.; Argentina Fil: Brero, María Luisa. Ministerio de Salud de la Nación. Administración Nacional de Laboratorios e Institutos de Salud; Argentina Fil: Fernandez Miyakawa, Mariano Enrique. Ministerio de Salud de la Nación. Administración Nacional de Laboratorios e Institutos de Salud; Argentina. Instituto Nacional de Tecnologia Agropecuaria. Centro de Investigacion En Ciencias Veterinarias y Agronomicas. Instituto de Patobiologia Veterinaria. - Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Pque. Centenario. Instituto de Patobiologia Veterinaria.; Argentina Fil: Chacana, Pablo Anibal. Instituto Nacional de Tecnologia Agropecuaria. Centro de Investigacion En Ciencias Veterinarias y Agronomicas. Instituto de Patobiologia Veterinaria. - Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Pque. Centenario. Instituto de Patobiologia Veterinaria.; Argentina |
description |
Antivenom for the treatment of bothropic snakebite is a priority for public health institutions from Latin America. An alternative to the conventional antivenom production is based on the use of egg yolk antibodies – IgY-technology – by immunizing laying hens. In this study, we produced, characterized and assessed the efficacy of IgY-based antivenoms against B. alternatus venom. Immunochemical studies (reactivity, avidity and antigen recognition pattern) as well as antivenom efficacy assays were performed. After the 3rd immunization, levels of specific IgY reached a maximum that was maintained throughout the observation period, while avidity indexes of the extracts increased after the successive immunizations. Furthermore, IgY against B. alternatus recognized protein complexes of the venom with high (>40 kDa), medium (20–40 kDa) and low (<20 kDa) molecular weights. IgY antivenoms obtained after 8 immunizations neutralized 35.65 μg of B. alternatus venom per mg of antivenom, while specific activities values ranged from 0.28 to 0.42. In conclusion, we produced and characterized IgY antivenoms capable of neutralizing the lethal activity of B. alternatus venom at a preclinical level. Thus, IgY-technology may allow the production of effective and affordable antivenoms fulfilling the urgent needs of many countries where conventional manufacture is unable to provide enough availability of antivenoms. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-05 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/147482 Leiva, Carlos Leónidas; Cangelosi, Adriana; Mariconda, Virginia Laura; Farace, Mariano Gabriel; Geoghegan, Patricia; et al.; IgY-based antivenom against Bothrops alternatus: Production and neutralization efficacy; Pergamon-Elsevier Science Ltd; Toxicon; 163; 5-2019; 84-92 0041-0101 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/147482 |
identifier_str_mv |
Leiva, Carlos Leónidas; Cangelosi, Adriana; Mariconda, Virginia Laura; Farace, Mariano Gabriel; Geoghegan, Patricia; et al.; IgY-based antivenom against Bothrops alternatus: Production and neutralization efficacy; Pergamon-Elsevier Science Ltd; Toxicon; 163; 5-2019; 84-92 0041-0101 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S0041010119300972 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.toxicon.2019.03.020 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-nd/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Pergamon-Elsevier Science Ltd |
publisher.none.fl_str_mv |
Pergamon-Elsevier Science Ltd |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1842269262817787904 |
score |
13.13397 |