Ion Exchange Biomaterials to Capture Daptomycin and Prevent Resistance Evolution in Off-Target Bacterial Populations

Daptomycin (DAP), a cyclic anionic lipopeptide antibiotic, is among the last resorts to treat multidrug-resistant Gram-positive bacterial infections, caused by vancomycin-resistant Enterococcus faecium or methicillin-resistant Staphylococcus aureus. DAP is administered intravenously, and via biliary excretion, ∼5-10% of the intravenous DAP dose arrives in the gastrointestinal (GI) tract where it drives resistance evolution in the off-target populations of E. faecium bacteria. Previously, we have shown in vivo that the oral administration of cholestyramine, an ion exchange biomaterial (IXB) sorbent, prevents DAP treatment from enriching DAP resistance in the populations of E. faecium shed from mice. Here, we investigate the biomaterial-DAP interfacial interactions to uncover the antibiotic removal mechanisms. The IXB-mediated DAP capture from aqueous media was measured in controlled pH/electrolyte solutions and in the simulated intestinal fluid (SIF) to uncover the molecular and colloidal mechanisms of DAP removal from the GI tract. Our findings show that the IXB electrostatically adsorbs the anionic antibiotic via a time-dependent diffusion-controlled process. Unsteady-state diffusion-adsorption mass balance describes the dynamics of adsorption well, and the maximum removal capacity is beyond the electric charge stoichiometric ratio because of DAP self-assembly. This study may open new opportunities for optimizing cholestyramine adjuvant therapy to prevent DAP resistance, as well as designing novel biomaterials to remove off-target antibiotics from the GI tract.

Medienart:

E-Artikel

Erscheinungsjahr:

2022

Erschienen:

2022

Enthalten in:

Zur Gesamtaufnahme - volume:14

Enthalten in:

ACS applied materials & interfaces - 14(2022), 38 vom: 28. Sept., Seite 42864-42875

Sprache:

Englisch

Beteiligte Personen:

Yeh, Shang-Lin [VerfasserIn]
Narasimhalu, Naveen [VerfasserIn]
Vom Steeg, Landon G [VerfasserIn]
Muthami, Joy [VerfasserIn]
LeConey, Sean [VerfasserIn]
He, Zeming [VerfasserIn]
Pitcher, Mica [VerfasserIn]
Cassady, Harrison [VerfasserIn]
Morley, Valerie J [VerfasserIn]
Cho, Sung Hyun [VerfasserIn]
Bator, Carol [VerfasserIn]
Koshani, Roya [VerfasserIn]
Woods, Robert J [VerfasserIn]
Hickner, Michael [VerfasserIn]
Read, Andrew F [VerfasserIn]
Sheikhi, Amir [VerfasserIn]

Links:

Volltext

Themen:

11041-12-6
6Q205EH1VU
Anti-Bacterial Agents
Antibiotic stewardship
Bacterial Proteins
Biocompatible Materials
Biomaterial
Cholestyramine
Cholestyramine Resin
Daptomycin
Electrolytes
Ion exchange
Journal Article
NWQ5N31VKK
Vancomycin

Anmerkungen:

Date Completed 30.09.2022

Date Revised 30.09.2022

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1021/acsami.2c14894

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM346203929