Evidence map›Paper›PMID 20020833›Full record

ArticleFuture microbiology2010

Defensins attenuate cytokine responses yet enhance antibody responses to Porphyromonas gingivalis adhesins in mice.

Karl G Kohlgraf, Abbey Ackermann, Xiaoying Lu, Kindra Burnell, Myriam Bélanger, Joseph E Cavanaugh, Hua Xie, Ann Progulske-Fox, Kim A Brogden

Abstract read
In one paragraph

Article in Future microbiology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
3.0field-weighted citation impact, top 10% 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

13 citing papers in PubMed, 28 citations in OpenAlex.

  1. Review
  2. Peptides in Dentistry: A Scoping Review.Bioengineering (Basel, Switzerland) · 2023
    Article
  3. A Synthetic Peptide 2AbzDrug design, development and therapy · 2020
    Article
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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

9 authors at 5 institutions in 1 country.

Karl G KohlgrafDows Institute for Dental Research, College of Dentistry, The University of Iowa, Iowa City, IA 52242, USA. karl-kohlgraf@uiowa.edu
Abbey Ackermann
Xiaoying Lu
Kindra Burnell
Myriam Bélanger
Joseph E Cavanaugh
Hua Xie
Ann Progulske-Fox
Kim A Brogden
University of Iowa · USMeharry Medical College · USUniversity of Florida · USUniversity of Georgia · USUniversity of Iowa Hospitals and Clinics · US

Funding

Institutional Training Program in Oral Health ResearchT32DE014678 · NIDCR · UNIVERSITY OF IOWA · PI SQUIER, CHRISTOPHER · 2002 to 2011
$5.2M
Defensin-induced Adaptive Immunity to HagBR01DE014390 · NIDCR · UNIVERSITY OF IOWA · PI BROGDEN, KIM A · 2003 to 2014
$3.4M
NIDCR NIH HHS R01 DE014390NIDCR NIH HHS T32 DE014678
6 · The paper itself

Abstract

aimOur aim is to assess the ability of human neutrophil peptide alpha-defensins (HNPs) and human beta-defensins (HBDs) to attenuate proinflammatory cytokine responses and enhance antibody responses to recombinant hemagglutinin B (rHagB) or recombinant fimbrillin A (rFimA) from Porphyromonas gingivalis 381 in mice. MATERIALS &

methodsIn the first study, C57BL/6 mice were given 10 microg rHagB or rFimA without and with 1 microg HNP1, HNP2, HBD1, HBD2 or HBD3. At 24 h, mice were euthanized and cytokine concentrations were determined in nasal wash fluid (NWF), bronchoalveolar lavage fluids, saliva and serum. In the second study, C57BL/6 mice were given 10 microg rHagB or rFimA without and with 1 microg HNPs or HBDs similarly on days 0, 7 and 14. At 21 days, mice were euthanized and rHagB- and rFimA-specific antibody responses were determined in NWF, bronchoalveolar lavage fluids, saliva and serum.

resultsMice given rHagB + HNP2, rHagB + HBD1 and rHagB + HBD3 produced significantly lower (p < 0.05) IL-6 responses than mice given rHagB alone. Mice given rHagB + HNP1, rHagB + HNP2, rHagB + HBD1 and rHagB + HBD3 produced significantly lower (p < 0.05) keratinocyte-derived chemokine responses than mice given rHagB alone. Mice given rFimA produced very low levels of IL-6 and only moderate levels of keratinocyte-derived chemokine in NWF that were not attenuated by prior incubation of rFimA with any defensin. Mice given rHagB + HNP1 produced a significantly higher (p < 0.05) serum IgG antibody response than mice given rHagB alone and mice given rFimA + HNP2 produced a higher, but not significant, antibody response.

conclusionThe ability of HNPs and HBDs to attenuate proinflammatory cytokine responses in murine NWF and enhance IgG antibody responses in serum was dependent upon both the defensin and antigen of P. gingivalis.

Indexed as

Adhesins, Bacterialalpha-DefensinsAnimalsAntibodies, BacterialBacteroidaceae Infectionsbeta-DefensinsBronchoalveolar Lavage FluidCytokinesFemaleFimbriae ProteinsHumansLectinsMiceMice, Inbred C57BLNasal CavityPorphyromonas gingivalisAdhesins, Bacterialalpha-DefensinsAntibodies, Bacterialbeta-DefensinsCytokinesFimbriae ProteinsfimbrillinHagB protein, Porphyromonas gingivalisLectins

Identifiers

PMID20020833
PMCPMC2822342
OpenAlexW1968713515

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.