Evidence map›Paper›PMID 20308375›Full record

ArticleAntimicrobial agents and chemotherapy2010

Combined antibacterial and anti-inflammatory activity of a cationic disubstituted dexamethasone-spermine conjugate.

Robert Bucki, Katarzyna Leszczynska, Fitzroy J Byfield, David E Fein, Esther Won, Katrina Cruz, Andrzej Namiot, Alina Kulakowska, Zbigniew Namiot, Paul B Savage and 2 more

Abstract read
In one paragraph

Article in Antimicrobial agents and chemotherapy, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
0.7field-weighted citation impact, top 28% 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

9 citing papers in PubMed, 22 citations in OpenAlex.

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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

12 authors at 5 institutions in 2 countries.

Robert BuckiDepartment of Physiology and the Institute for Medicine and Engineering, University of Pennsylvania, Philadelphia, PA 19104, USA. buckirob@mail.med.upenn.edu
Katarzyna Leszczynska
Fitzroy J Byfield
David E Fein
Esther Won
Katrina Cruz
Andrzej Namiot
Alina Kulakowska
Zbigniew Namiot
Paul B Savage
Scott L Diamond
Paul A Janmey
University of Pennsylvania · USDiscovery Institute · USBrigham Young University · USMedical University of Białystok · PLNeurology, Inc · US

Funding

Novel antibacterial agents resistant to inactivation by polyelectrolytesR01HL067286 · NHLBI · UNIVERSITY OF PENNSYLVANIA · PI JANMEY, PAUL A · 2001 to 2010
$2.5M
NHLBI NIH HHS HL67286NHLBI NIH HHS R01 HL067286
6 · The paper itself

Abstract

The rising number of antibiotic-resistant bacterial strains represents an emerging health problem that has motivated efforts to develop new antibacterial agents. Endogenous cationic antibacterial peptides (CAPs) that are produced in tissues exposed to the external environment are one model for the design of novel antibacterial compounds. Here, we report evidence that disubstituted dexamethasone-spermine (D2S), a cationic corticosteroid derivative initially identified as a by-product of synthesis of dexamethasone-spermine (DS) for the purpose of improving cellular gene delivery, functions as an antibacterial peptide-mimicking molecule. This moiety exhibits bacterial killing activity against clinical isolates of Staphylococcus aureus, Pseudomonas aeruginosa present in cystic fibrosis (CF) sputa, and Pseudomonas aeruginosa biofilm. Although compromised in the presence of plasma, D2S antibacterial activity resists the proteolytic activity of pepsin and is maintained in ascites, cerebrospinal fluid, saliva, and bronchoalveolar lavage (BAL) fluid. D2S also enhances S. aureus susceptibility to antibiotics, such as amoxicillin (AMC), tetracycline (T), and amikacin (AN). Inhibition of interleukin-6 (IL-6) and IL-8 release from lipopolysaccharide (LPS)- or lipoteichoic acid (LTA)-treated neutrophils in the presence of D2S suggests that this molecule might also prevent systemic inflammation caused by bacterial wall products. D2S-mediated translocation of green fluorescent protein (GFP)-labeled glucocorticoid receptor (GR) in bovine aorta endothelial cells (BAECs) suggests that some of its anti-inflammatory activities involve engagement of glucocorticoid receptors. The combined antibacterial and anti-inflammatory activities of D2S suggest its potential as an alternative to natural CAPs in the prevention and treatment of some bacterial infections.

Indexed as

AnimalsAnti-Bacterial AgentsAnti-Inflammatory AgentsAntimicrobial Cationic PeptidesBacterial InfectionsBiofilmsCathelicidinsCattleCells, CulturedDexamethasoneDrug DesignHumansInterleukinsIn Vitro TechniquesMacrophagesMicrobial Sensitivity TestsAnti-Bacterial AgentsAnti-Inflammatory AgentsAntimicrobial Cationic PeptidesCathelicidinsDexamethasoneInterleukinsReceptors, GlucocorticoidSpermine

Identifiers

PMID20308375
PMCPMC2876363
OpenAlexW2170912374

What OpenQuestion holds

Textmetadata
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.