Teste de neutralização para toxina épsilon e titulação de toxinas beta e épsilon de Clostridium perfringens tipos C e D em cultura de células

• Ano de defesa: 2005
• Autor(a) principal: Milton Formiga de Souza Junior
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Minas Gerais; UFMG
• Palavras-chave em Português: Soroneutralização; Toxina epsilon; Clostridium perfringens; Células Cultura e meios de cultura; Vacinas
• Link de acesso: http://hdl.handle.net/1843/BUOS-8C5GR8

We evaluated the sensitivity s of the cell lines Madin Darby bovine kidney cells (MDBK), Madin darby canine cells (MDCK), African green momkey (VERO), lymphosarcoma ace beta and epsilon toxin of Clostridium perfringens types C and D respectively. Developed and standardized to a titration technique in cell lines and a neutralization test in vitro for epsilon toxin; AL 929 cell line was more sensitive to the toxin and beta toxin to MDCK and MDCK beta epsilon toxin, in concentrations of 65 to 200 and from 1.0 to 3.0 DMM / ml for mice (DMNC). In the standardization of the titration of toxin in MDCK cells was observed correction of 97% between DMMc (minimum lethal dose in mice) and ECT (Cytotoxic Effect), when we used a correction factor (CF) and adjusted the mathematical equation for cytotoxic therapy (ECT XFC = 0,32-00,23). The correlation between test soroneutalização developed in MDCK and pattern in mice was 99.73%