2025
Piezoelectric biosensor with dissipation monitoring enables the analysis of bacterial lytic agent activity
OBOŘILOVÁ, Radka; Eliška KUČEROVÁ; Tibor BOTKA; Hana VAISOCHEROVÁ-LÍSALOVÁ; Petr SKLÁDAL et al.Základní údaje
Originální název
Piezoelectric biosensor with dissipation monitoring enables the analysis of bacterial lytic agent activity
Autoři
OBOŘILOVÁ, Radka; Eliška KUČEROVÁ; Tibor BOTKA; Hana VAISOCHEROVÁ-LÍSALOVÁ; Petr SKLÁDAL a Zdeněk FARKA
Vydání
Scientific Reports, Springer Nature, 2025, 2045-2322
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10606 Microbiology
Stát vydavatele
Německo
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 3.900 v roce 2024
Označené pro přenos do RIV
Ano
Organizační jednotka
Přírodovědecká fakulta
UT WoS
EID Scopus
Klíčová slova anglicky
Piezoelectric biosensor; Antimicrobial treatment; Phage therapy; Phage-antibiotic synergy; Multidrug-resistant bacteria; Staphylococcus aureus
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 4. 3. 2026 10:45, Mgr. Eva Dubská
Anotace
V originále
Antibiotic-resistant strains of Staphylococcus aureus pose a significant threat in healthcare, demanding urgent therapeutic solutions. Combining bacteriophages with conventional antibiotics, an innovative approach termed phage-antibiotic synergy, presents a promising treatment avenue. However, to enable new treatment strategies, there is a pressing need for methods to assess their efficacy reliably and rapidly. Here, we introduce a novel approach for real-time monitoring of pathogen lysis dynamics employing the piezoelectric quartz crystal microbalance (QCM) with dissipation (QCM-D) technique. The sensor, a QCM chip modified with the bacterium S. aureus RN4220 ΔtarM, was utilized to monitor the activity of the enzyme lysostaphin and the phage P68 as model lytic agents. Unlike conventional QCM solely measuring resonance frequency changes, our study demonstrates that dissipation monitoring enables differentiation of bacterial growth and lysis caused by cell-attached lytic agents. Compared to reference turbidimetry measurements, our results reveal distinct alterations in the growth curve of the bacteria adhered to the sensor, characterized by a delayed lag phase. Furthermore, the dissipation signal analysis facilitated the precise real-time monitoring of phage-mediated lysis. Finally, the QCM-D biosensor was employed to evaluate the synergistic effect of subinhibitory concentrations of the antibiotic amoxicillin with the bacteriophage P68, enabling monitoring of the lysis of P68-resistant wild-type strain S. aureus RN4220. Our findings suggest that this synergy also impedes the formation of bacterial aggregates, the precursors of biofilm formation. Overall, this method brings new insights into phage-antibiotic synergy, underpinning it as a promising strategy against antibiotic-resistant bacterial strains with broad implications for treatment and prevention.
Návaznosti
| EF18_046/0015974, projekt VaV |
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| EH22_008/0004596, projekt VaV |
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| FW10010112, projekt VaV |
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| LM2023042, projekt VaV |
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| LX22NPO5103, projekt VaV |
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| MUNI/A/1684/2024, interní kód MU |
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| MUNI/G/1125/2022, interní kód MU |
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| NU21J-05-00035, projekt VaV |
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