The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 04, 2024

Filed:

Apr. 13, 2022
Applicant:

The Board of Trustees of the Leland Stanford Junior University, Stanford, CA (US);

Inventors:

Peter Luke Santa Maria, Redwood City, CA (US);

Laurent Bekale, Redwood City, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A61K 47/69 (2017.01); A61K 47/60 (2017.01); A61P 31/04 (2006.01);
U.S. Cl.
CPC ...
A61K 47/6929 (2017.08); A61K 47/60 (2017.08); A61P 31/04 (2018.01);
Abstract

Compositions, methods, and kits are provided for treating bacterial infections with nanoparticles comprising a thiol-binding metallic core conjugated to a fluoroquinolone antibiotic. Recalcitrant infections are often difficult to treat because of the presence of persister cells, a subpopulation of bacterial cells that is highly tolerant of traditional antibiotics. Persister cells are dormant, which makes them less susceptible to many antibiotics, which are designed to kill growing cells. Administration of nanoparticles comprising a thiol-binding metallic core conjugated to fluoroquinolone antibiotics was found to be highly efficacious in eradicating persister cells and for treating infections for a broad range of bacterial species, including Gram-positive and Gram-negative bacteria. Such treatment was effective not only in eradicating planktonic bacteria but also bacteria in biofilms.


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