Evidence map›Paper›PMID 24094939›Full record

ArticleBiomaterials2014

PHACOS, a functionalized bacterial polyester with bactericidal activity against methicillin-resistant Staphylococcus aureus.

Nina Dinjaski, Mar Fernández-Gutiérrez, Shivaram Selvam, Francisco J Parra-Ruiz, Susan M Lehman, Julio San Román, Ernesto García, José L García, Andrés J García, María Auxiliadora Prieto

Open access · greenAbstract read
In one paragraph

Article in Biomaterials, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
3.1field-weighted citation impact, top 9% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

19 citing papers in PubMed, 71 citations in OpenAlex.

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  15. Biomedical Applications of Polyhydroxyalkanoates.Indian journal of microbiology · 2017
    Review
  16. Article
  17. Article
  18. Smart polyhydroxyalkanoate nanobeads by protein based functionalization.Nanomedicine : nanotechnology, biology, and medicine · 2015
    Review
  19. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 4 institutions in 2 countries.

Nina DinjaskiCentro de Investigaciones Biológicas, CSIC, Madrid 28040, Spain.
Mar Fernández-Gutiérrez
Shivaram Selvam
Francisco J Parra-Ruiz
Susan M Lehman
Julio San Román
Ernesto García
José L García
Andrés J García
María Auxiliadora Prieto
Centro de Investigaciones Biológicas Margarita Salas · ESGeorgia Institute of Technology · USBiomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine · ESInstituto de Ciencia y Tecnología de Polímeros · ES

Funding

CTSA INFRASTRUCTURE FOR PEDIATRIC RESEARCHUL1RR025008 · NCRR · EMORY UNIVERSITY · PI STEPHENS, DAVID S · 2007 to 2011
$29.0M
Atlanta Clinical and Translational Science Institute (ACTSI) RenewalUL1TR000454 · NCATS · EMORY UNIVERSITY · PI STEPHENS, DAVID S · 2012 to 2016
$25.8M
Imaging biomaterial-associated inflammationR21AI094624 · NIAID · GEORGIA INSTITUTE OF TECHNOLOGY · PI GARCIA, ANDRES J · 2011 to 2012
$414k
NCATS NIH HHS UL1 TR000454NCRR NIH HHS UL1 RR025008NCRR NIH HHS UL RR025008NIAID NIH HHS R21 AI094624
6 · The paper itself

Abstract

Biomaterial-associated infections represent a significant clinical problem, and treatment of these microbial infections is becoming troublesome due to the increasing number of antibiotic-resistant strains. Here, we report a naturally functionalized bacterial polyhydroxyalkanoate (PHACOS) with antibacterial properties. We demonstrate that PHACOS selectively and efficiently inhibits the growth of methicillin-resistant Staphylococcus aureus (MRSA) both in vitro and in vivo. This ability has been ascribed to the functionalized side chains containing thioester groups. Significantly less (3.2-fold) biofilm formation of S. aureus was detected on PHACOS compared to biofilms formed on control poly(3-hydroxyoctanoate-co-hydroxyhexanoate) and poly(ethylene terephthalate), but no differences were observed in bacterial adhesion among these polymers. PHACOS elicited minimal cytotoxic and inflammatory effects on murine macrophages and supported normal fibroblast adhesion. In vivo fluorescence imaging demonstrated minimal inflammation and excellent antibacterial activity for PHACOS compared to controls in an in vivo model of implant-associated infection. Additionally, reductions in neutrophils and macrophages in the vicinity of sterile PHACOS compared to sterile PHO implant were observed by immunohistochemistry. Moreover, a similar percentage of inflammatory cells was found in the tissue surrounding sterile PHACOS and S. aureus pre-colonized PHACOS implants, and these levels were significantly lower than S. aureus pre-colonized control polymers. These findings support a contact active surface mode of antibacterial action for PHACOS and establish this functionalized polyhydroxyalkanoate as an infection-resistant biomaterial.

Indexed as

AnimalsAnti-Bacterial AgentsAnti-Inflammatory AgentsBacteriaBiofilmsCell AdhesionMethicillin-Resistant Staphylococcus aureusMiceMicrobial Sensitivity TestsMicroscopy, Electron, ScanningPolyestersAnti-Bacterial AgentsAnti-Inflammatory AgentsPolyestersAntimicrobial polymersBiofilmBiomaterial infectionFunctionalized polyhydroxyalkanoateMethicillin-resistant Staphylococcus aureus

Identifiers

PMID24094939
PMCPMC3955844
OpenAlexW1972200565

What OpenQuestion holds

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Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.