Evidence map›Paper›PMID 24438122›Full record

ArticleCellular microbiology2014

The Bordetella pertussis Bps polysaccharide enhances lung colonization by conferring protection from complement-mediated killing.

Tridib Ganguly, John B Johnson, Nancy D Kock, Griffith D Parks, Rajendar Deora

Open access · bronzeAbstract read
In one paragraph

Article in Cellular microbiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
2.4field-weighted citation impact, top 14% 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

20 citing papers in PubMed, 31 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

5 authors at 1 institution in 1 country.

Tridib GangulyDepartment of Microbiology and Immunology, Medical Center Blvd., Wake Forest School of Medicine, Winston-Salem, NC, 27157, USA.
John B Johnson
Nancy D Kock
Griffith D Parks
Rajendar Deora
Wake Forest University · US

Funding

Bordetella Biofilms and PathogenesisR01AI075081 · NIAID · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI DEORA, RAJENDAR K · 2008 to 2011
$1.5M
NIAID NIH HHS 1R01AI075081NIAID NIH HHS R01 AI075081
6 · The paper itself

Abstract

Bordetella pertussis is a human-restricted Gram-negative bacterial pathogen that causes whooping cough or pertussis. Pertussis is the leading vaccine preventable disease that is resurging in the USA and other parts of the developed world. There is an incomplete understanding of the mechanisms by which B. pertussis evades killing and clearance by the complement system, a first line of host innate immune defence. The present study examined the role of the Bps polysaccharide to resist complement activity in vitro and in the mouse respiratory tract. The isogenic bps mutant strain containing a large non-polar in-frame deletion of the bpsA-D locus was more sensitive to serum and complement mediated killing than the WT strain. As determined by Western blotting, flow cytometry and electron microscopic studies, the heightened sensitivity of the mutant strain was due to enhanced deposition of complement proteins and the formation of membrane attack complex, the end-product of complement activation. Bps was sufficient to confer complement resistance as evidenced by a Bps-expressing Escherichia coli being protected by serum killing. Additionally, Western blotting and flow cytometry assays revealed that Bps inhibited the deposition of complement proteins independent of other B. pertussis factors. The bps mutant strain colonized the lungs of complement-deficient mice at higher levels than that observed in C57Bl/6 mice. These results reveal a previously unknown interaction between Bps and the complement system in controlling B. pertussis colonization of the respiratory tract. These findings also make Bps a potential target for the prevention and therapy of whooping cough.

Indexed as

AnimalsBordetella pertussisComplement Membrane Attack ComplexComplement System ProteinsHost-Pathogen InteractionsHumansImmunity, InnateLungMice, Inbred C57BLMice, KnockoutMicrobial ViabilityPolysaccharides, BacterialVirulence Factors, BordetellaWhooping CoughComplement Membrane Attack ComplexComplement System ProteinsPolysaccharides, BacterialVirulence Factors, Bordetella

Identifiers

PMID24438122
PMCPMC4065191
OpenAlexW1932737433

What OpenQuestion holds

Textmetadata
LicenceTDM
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.