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SKINPHAGE episode artwork

May 19, 2024 9 min

SKINPHAGE

from gazeta Valsassina Hosted by Colégio Valsassina

Perante a ameaça das bactérias resistentes aos antibióticos, pretende-se dar um contributo para o desenvolvimento de uma solução fágica para aplicar em infeções bacterianas localizadas (e.g. em feridas na pele). O design experimental incluiu as etapas: recolha de amostras de águas residuais, isolamento e seleção dos bacteriófagos recolhidos (foi isolado o bacteriófago “Escherichia phage vB_EcoM-fFi-Eco06”), propagação e purificação dos mesmos, extração do ADN, sequenciação do genoma do bacteriófago. Procedeu-se à propagação e purificação do bacteriófago sequenciado, à preparação da solução fágica e embebimento de gazes com essa solução, e ao teste das gazes contra culturas bacterianas de E. coli de forma a avaliar a Prova de Conceito: “eliminação de bactérias de E. coli quando em contacto com a solução fágica”. Os resultados revelaram-se positivos para a validação da prova de conceito. O produto final apresenta-se como uma solução modelar (poderá ser aplicada a outro tipo de bactérias). = = = Faced with the threat of antibiotic-resistant bacteria, the aim is to contribute to the development of a phage solution for use in localized bacterial infections (e.g., in skin wounds). The experimental design included the following steps: collection of wastewater samples, isolation and selection of collected bacteriophages (the bacteriophage "Escherichia phage vB_EcoM-fFi-Eco06" was isolated), propagation and purification of the bacteriophages, DNA extraction, and sequencing of the bacteriophage genome. The sequenced bacteriophage was propagated and purified, the phage solution was prepared, and gauzes were soaked with this solution. The gauzes were then tested against E. coli bacterial cultures to evaluate the Proof of Concept: "elimination of E.coli bacteria when in contact with the phage solution." The results proved positive for validating the proof of concept. The final product appears as a modular solution that could be applied to other types of bacteria.

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SKINPHAGE

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This episode was published on May 19, 2024.

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