{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,5]],"date-time":"2026-09-05T16:09:42Z","timestamp":1788624582083,"version":"build-2803163510"},"reference-count":62,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2024,12,23]],"date-time":"2024-12-23T00:00:00Z","timestamp":1734912000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Fondecyt","award":["1241555"],"award-info":[{"award-number":["1241555"]}]},{"name":"Fondecyt","award":["1230199"],"award-info":[{"award-number":["1230199"]}]},{"name":"Fondecyt","award":["LCLI22-01"],"award-info":[{"award-number":["LCLI22-01"]}]},{"name":"The Competition for Research Regular Projects 2022","award":["1241555"],"award-info":[{"award-number":["1241555"]}]},{"name":"The Competition for Research Regular Projects 2022","award":["1230199"],"award-info":[{"award-number":["1230199"]}]},{"name":"The Competition for Research Regular Projects 2022","award":["LCLI22-01"],"award-info":[{"award-number":["LCLI22-01"]}]},{"name":"Universidad Tecnol\u00f3gica Metropolitana","award":["1241555"],"award-info":[{"award-number":["1241555"]}]},{"name":"Universidad Tecnol\u00f3gica Metropolitana","award":["1230199"],"award-info":[{"award-number":["1230199"]}]},{"name":"Universidad Tecnol\u00f3gica Metropolitana","award":["LCLI22-01"],"award-info":[{"award-number":["LCLI22-01"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Pharmaceutics"],"abstract":"<jats:p>Klebsiella pneumoniae is a Gram-negative bacillus responsible for a wide variety of potentially fatal infections and, in turn, constitutes a critical agent of healthcare-associated infections. Moreover, K. pneumoniae is characterized by multi-drug-resistant (MDR) bacteria, such as extended-spectrum beta-lactamases (ESBL) and carbapenemase (KPC) producer strains, representing a significant health problem. Because resistances make it difficult to eradicate using antibiotics, antimicrobial photodynamic therapy (aPDT) promises to be a favorable approach to complementing conventional therapy against MDR bacteria. This study aims to provide relevant bibliographic information on the state of the art of application of aPDT against K. pneumoniae and MDR K. pneumoniae. Our methodology follows a protocol using the PRISMA extension for scoping reviews (PRISMA-ScR) guidelines, and the search consults the PubMed (MESH), Google Scholar, and Scopus databases from January 2012 to September 2024. The eligibility criteria were (1) original articles after 2012 referring to antimicrobial photodynamic activity in K. pneumoniae in vitro and in vivo: clinical applications and synergism with antibiotics, other antimicrobial drugs, or PS coupled to other particles, (2) articles in English, and (3) articles peer-reviewed. Results. Following two independent searches in databases, 298 records were found. After applying eligibility criteria and various filters, such as removing duplicates, 25 studies were included in this review. The evidence demonstrates the effectiveness of aPDT in vitro in eradicating sensitive or MDR-K. pneumoniae strains, including strains producing biofilms, ESBL, and KPC. Finally, it is concluded that aPDT is a recommended antimicrobial therapy, but more research in vivo is needed to support studies in humans.<\/jats:p>","DOI":"10.3390\/pharmaceutics16121626","type":"journal-article","created":{"date-parts":[[2024,12,23]],"date-time":"2024-12-23T04:33:29Z","timestamp":1734928409000},"page":"1626","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["Use of Antimicrobial Photodynamic Therapy to Inactivate Multidrug-Resistant Klebsiella pneumoniae: Scoping Review"],"prefix":"10.3390","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7059-2975","authenticated-orcid":false,"given":"Ang\u00e9lica R.","family":"Bravo","sequence":"first","affiliation":[{"name":"Laboratorio de Microbiolog\u00eda Celular, Centro de Ciencias M\u00e9dicas aplicadas, Facultad de Medicina y Ciencias de la Salud, Universidad Central de Chile, Lord Cochrane 418, Santiago 8330546, Chile"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Felipe Alejandro","family":"Fuentealba","sequence":"additional","affiliation":[{"name":"Laboratorio de Microbiolog\u00eda Celular, Centro de Ciencias M\u00e9dicas aplicadas, Facultad de Medicina y Ciencias de la Salud, Universidad Central de Chile, Lord Cochrane 418, Santiago 8330546, Chile"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5942-7696","authenticated-orcid":false,"given":"Iv\u00e1n A.","family":"Gonz\u00e1lez","sequence":"additional","affiliation":[{"name":"Departamento de Qu\u00edmica, Facultad de Ciencias Naturales, Matem\u00e1ticas y del Medio Ambiente, Universidad Tecnol\u00f3gica Metropolitana, Las Palmeras 3360, \u00d1u\u00f1oa, Santiago 7800003, Chile"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4581-7327","authenticated-orcid":false,"given":"Christian Erick","family":"Palavecino","sequence":"additional","affiliation":[{"name":"Laboratorio de Microbiolog\u00eda Celular, Centro de Ciencias M\u00e9dicas aplicadas, Facultad de Medicina y Ciencias de la Salud, Universidad Central de Chile, Lord Cochrane 418, Santiago 8330546, Chile"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2024,12,23]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"175","DOI":"10.4067\/S0716-10182012000200009","article-title":"Multidrug-resistant Klebsiella pneumoniae, predisposing factors and associated mortality in a tertiary-care hospital in Colombia","volume":"29","author":"Rueda","year":"2012","journal-title":"Rev. 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