Partial in vivo protection against Peruvian spider Loxosceles laeta venom by immunization with a multiepitopic protein (rMEPLox).


Journal

Toxicon : official journal of the International Society on Toxinology
ISSN: 1879-3150
Titre abrégé: Toxicon
Pays: England
ID NLM: 1307333

Informations de publication

Date de publication:
Aug 2022
Historique:
received: 14 03 2022
revised: 26 05 2022
accepted: 27 05 2022
pubmed: 7 6 2022
medline: 7 7 2022
entrez: 6 6 2022
Statut: ppublish

Résumé

Loxoscelism is a serious public health problem in Peru, with approximately 2500 accidents reported per year. To envision alternatives to cope with this health problem, the neutralizing humoral immune response against the lethal effects of Peruvian spider Loxosceles laeta venom was evaluated in a mouse model by immunization with a non-toxic multiepitopic protein (rMEPLox). This immunogen contains epitopes from an astacin-like metalloprotease, a hyaluronidase and a sphingomyelinase-D from Loxosceles intermedia and from SMase-I from L. laeta venoms. In vivo protection assays showed that five out of six mice immunized with rMEPLox (after six injections) resisted to 1.4 LD

Identifiants

pubmed: 35660625
pii: S0041-0101(22)00175-1
doi: 10.1016/j.toxicon.2022.05.044
pii:
doi:

Substances chimiques

Epitopes 0
Spider Venoms 0
Phosphoric Diester Hydrolases EC 3.1.4.-

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

1-5

Informations de copyright

Copyright © 2022 Elsevier Ltd. All rights reserved.

Auteurs

Ruth L Quispe (RL)

Laboratorio de Toxinología, Centro Nacional de Productos Biológicos (CNPB), Instituto Nacional de Salud, Lima, Peru.

Michael L Jaramillo (ML)

Laboratorio de Toxinología, Centro Nacional de Productos Biológicos (CNPB), Instituto Nacional de Salud, Lima, Peru.

Frank Torres-Huaco (F)

Laboratorio de Toxinología, Centro Nacional de Productos Biológicos (CNPB), Instituto Nacional de Salud, Lima, Peru; Coordinación de Investigación, Universidad Continental, Avenida Los Incas S/n, Arequipa, Peru.

Cesar Bonilla (C)

Laboratorio de Toxinología, Centro Nacional de Productos Biológicos (CNPB), Instituto Nacional de Salud, Lima, Peru; Facultad de Odontologia, Universidad Nacional Mayor de San Marcos, Peru.

Jacqueline Isasi (J)

Laboratorio de Toxinología, Centro Nacional de Productos Biológicos (CNPB), Instituto Nacional de Salud, Lima, Peru.

Clara Guerra-Duarte (C)

Diretoria de Pesquisa e Desenvolvimento, Fundação Ezequiel Dias, 30510-010, Belo Horizonte, MG, Brazil.

Carlos Chávez-Olórtegui (C)

Laboratorio de Toxinología, Centro Nacional de Productos Biológicos (CNPB), Instituto Nacional de Salud, Lima, Peru; Departamento de Bioquímica e Imunologia, ICB, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, CEP, 31270-901, Belo Horizonte, Minas Gerais, Brazil. Electronic address: olortegi@icb.ufmg.br.

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Classifications MeSH