β-lactam antibiotics & vancomycin increase the growth & virulence of Candida spp

Autor: Débora de Souza Collares Maia Castelo-Branco, Lilia Maria Carneiro Câmara, Patrícia Bruna Leite Mendes, Ana Raquel Colares de Andrade, Rossana de Aguiar Cordeiro, Lucas Pereira de Alencar, Jamille Alencar Sales, Marcos Fábio Gadelha Rocha, Jônatas da Silva Franco, Rosana Serpa, Jonathas Sales de Oliveira, José Júlio Costa Sidrim, Antonio José de Jesus Evangelista, Raimunda Sâmia Nogueira Brilhante
Rok vydání: 2018
Předmět:
Zdroj: Future Microbiology. 13:869-875
ISSN: 1746-0921
1746-0913
DOI: 10.2217/fmb-2018-0019
Popis: Aim: To investigate the direct effect of antibiotics on growth and virulence of the major Candida species associated with invasive infections. Materials & methods: Cefepime, imipenem, meropenem, amoxicillin and vancomycin were tested at twofold the peak plasma concentration (2× PP) and the peak plasma concentration (PP). The effects of antibiotics on Candida albicans, Candida parapsilosis, Candida krusei and Candida tropicalis were investigated by colony counting, flow cytometry, proteolytic activity and virulence in Caenorhabditis elegans. Results: Antibiotics increase growth and proteolytic activity of Candida spp; In addition, amoxicillin potentiates virulence of C. krusei and C. tropicalis against Caenorhabditis elegans. Conclusion: These results suggest that antimicrobial therapy may have a direct effect on the pathophysiology of invasive fungal infections in patients at risk.
Databáze: OpenAIRE