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Sensors (Basel) ; 24(10)2024 May 12.
Artigo em Inglês | MEDLINE | ID: mdl-38793927

RESUMO

Specialized cancer treatments have the potential to exploit glutamine dependence to increase patient survival rates. Glutamine diagnostics capable of tracking a patient's response to treatment would enable a personalized treatment dosage to optimize the tradeoff between treatment success and dangerous side effects. Current clinical glutamine testing requires sophisticated and expensive lab-based tests, which are not broadly available on a frequent, individualized basis. To address the need for a low-cost, portable glutamine diagnostic, this work engineers a cell-free glutamine biosensor to overcome assay background and signal-to-noise limitations evident in previously reported studies. The findings from this work culminate in the development of a shelf-stable, paper-based, colorimetric glutamine test with a high signal strength and a high signal-to-background ratio for dramatically improved signal resolution. While the engineered glutamine test is important progress towards improving the management of cancer and other health conditions, this work also expands the assay development field of the promising cell-free biosensing platform, which can facilitate the low-cost detection of a broad variety of target molecules with high clinical value.


Assuntos
Técnicas Biossensoriais , Glutamina , Engenharia Metabólica , Técnicas Biossensoriais/métodos , Glutamina/metabolismo , Engenharia Metabólica/métodos , Humanos , Engenharia Genética/métodos , Papel , Colorimetria/métodos , Sistema Livre de Células
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