start-ver=1.4
cd-journal=joma
no-vol=13
cd-vols=
no-issue=12
article-no=
start-page=25
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2024
dt-pub=20241216
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Disruption of the Enterococcus faecalis?Induced Biofilm on the Intraocular Lens Using Bacteriophages
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Purpose: To compare the effects of bacteriophages (phages) and vancomycin on Enterococcus faecalis?induced biofilms on the intraocular lens.
Methods: E. faecalis strains EF24, GU02, GU03, and phiEF14H1 were used. The expression of the enterococcus surface protein (esp) gene was analyzed using polymerase chain reaction. Phages or vancomycin was added to the biofilms formed on culture plates or acrylic intraocular lenses. The biofilms were quantified after staining with crystal violet. The structure of the biofilms was analyzed using scanning electron microscopy.
Results: E. faecalis strains EF24, GU02, and GU03 formed biofilms on cell culture plates; however, the esp-negative GU03 strain had a significantly lower biofilm-forming ability than the esp-positive strains EF24 and GU02. The addition of phiEF14H1 resulted in a significant reduction in biofilm mass produced by both EF24 and GU02 compared with the untreated control. However, the addition of vancomycin did not degrade the biofilms. Phages significantly degraded biofilms and reduced the viable EF24 and GU02 bacteria on the intraocular lens.
Conclusions: Phages can degrade biofilms formed on the intraocular lens and destroy the bacteria within it. Thus, phage therapy may be a new treatment option for refractory and recurrent endophthalmitis caused by biofilm-forming bacteria.
Translational Relevance: Phage therapy, a novel treatment option for refractory and recurrent endophthalmitis caused by biofilm-forming bacteria, effectively lyses E. faecalis?induced biofilms.
en-copyright=
kn-copyright=
en-aut-name=KishimotoTatsuma
en-aut-sei=Kishimoto
en-aut-mei=Tatsuma
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=FukudaKen
en-aut-sei=Fukuda
en-aut-mei=Ken
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=IshidaWaka
en-aut-sei=Ishida
en-aut-mei=Waka
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=KuwanaAozora
en-aut-sei=Kuwana
en-aut-mei=Aozora
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=TodokoroDaisuke
en-aut-sei=Todokoro
en-aut-mei=Daisuke
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=UchiyamaJumpei
en-aut-sei=Uchiyama
en-aut-mei=Jumpei
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=MatsuzakiShigenobu
en-aut-sei=Matsuzaki
en-aut-mei=Shigenobu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=YamashiroKenji
en-aut-sei=Yamashiro
en-aut-mei=Kenji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
affil-num=1
en-affil=Department of Ophthalmology and Visual Science, Kochi Medical School, Kochi University
kn-affil=
affil-num=2
en-affil=Department of Ophthalmology and Visual Science, Kochi Medical School, Kochi University
kn-affil=
affil-num=3
en-affil=Department of Ophthalmology and Visual Science, Kochi Medical School, Kochi University
kn-affil=
affil-num=4
en-affil=Department of Ophthalmology and Visual Science, Kochi Medical School, Kochi University
kn-affil=
affil-num=5
en-affil=Department of Ophthalmology, Gunma University Graduate School of Medicine
kn-affil=
affil-num=6
en-affil=Department of Bacteriology, Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=7
en-affil=Department of Medical Laboratory Science, Faculty of Health Sciences, Kochi Gakuen University
kn-affil=
affil-num=8
en-affil=Department of Ophthalmology and Visual Science, Kochi Medical School, Kochi University
kn-affil=
en-keyword=biofilm
kn-keyword=biofilm
en-keyword=bacteriophage
kn-keyword=bacteriophage
en-keyword=intraocular lens
kn-keyword=intraocular lens
en-keyword=endophthalmitis
kn-keyword=endophthalmitis
en-keyword=cataract
kn-keyword=cataract
en-keyword=enterococcus faecalis
kn-keyword=enterococcus faecalis
END