Evidence map›Paper›PMID 12032337›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2002

Insight into the molecular basis of pathogen abundance: group A Streptococcus inhibitor of complement inhibits bacterial adherence and internalization into human cells.

Nancy P Hoe, Robin M Ireland, Frank R DeLeo, Brian B Gowen, David W Dorward, Jovanka M Voyich, Mengyao Liu, Eugene H Burns, Derek M Culnan, Anthony Bretscher and 1 more

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
11.1field-weighted citation impact, top 1% 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

35 citing papers in PubMed, 88 citations in OpenAlex.

  1. Interplay between group AMicrobiology and molecular biology reviews : MMBR · 2024
    Review
  2. Review
  3. Article
  4. Review
  5. Article
  6. Article
  7. Group AMicrobiology spectrum · 2019
    Article
  8. Article
  9. Review
  10. Review
  11. Review
  12. Responses of innate immune cells to group A Streptococcus.Frontiers in cellular and infection microbiology · 2014
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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

11 authors at 3 institutions in 1 country.

Nancy P HoeLaboratory of Human Bacterial Pathogenesis, National Institute of Allergy and Infectious Diseases, National Institutes of Health, 903 South 4th Street, Hamilton, MT 59840, USA.
Robin M Ireland
Frank R DeLeo
Brian B Gowen
David W Dorward
Jovanka M Voyich
Mengyao Liu
Eugene H Burns
Derek M Culnan
Anthony Bretscher
James M Musser
Drew University · USNational Institutes of Health · USCornell University · US

Funding

Interaction of pathogenic bacteria with human phagocytic leukocytesZIAAI000900 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI DELEO, FRANK · 2009 to 2023
$3.6M
Interaction Of Pathogenic Bacteria With LeukocytesZ01AI000900 · NIAID · NIAID EXTRAMURAL ACTIVITIES · PI DELEO, FRANK R · 2001 to 2008
$2.8M
ULTRASTRUCTURAL ANALYSIS OF ANTIGENIC DETERMINANTS IN PATHOGENSZ01AI000488 · NIAID · NIAID EXTRAMURAL ACTIVITIES · PI GARON, CLAUDE · 1987 to 2002
–
Molecular Pathogenomics Of Group A StreptococcusZ01AI000921 · NIAID · NIAID EXTRAMURAL ACTIVITIES · PI MUSSER, JAMES M · 2002 to 2003
–
6 · The paper itself

Abstract

Streptococcal inhibitor of complement (Sic) is a secreted protein made predominantly by serotype M1 Group A Streptococcus (GAS), which contributes to persistence in the mammalian upper respiratory tract and epidemics of human disease. Unexpectedly, an isogenic sic-negative mutant adhered to human epithelial cells significantly better than the wild-type parental strain. Purified Sic inhibited the adherence of a sic negative serotype M1 mutant and of non-Sic-producing GAS strains to human epithelial cells. Sic was rapidly internalized by human epithelial cells, inducing cell flattening and loss of microvilli. Ezrin and moesin, human proteins that functionally link the cytoskeleton to the plasma membrane, were identified as Sic-binding proteins by affinity chromatography and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry analysis. Sic colocalized with ezrin inside epithelial cells and bound to the F-actin-binding site region located in the carboxyl terminus of ezrin and moesin. Synthetic peptides corresponding to two regions of Sic had GAS adherence-inhibitory activity equivalent to mature Sic and inhibited binding of Sic to ezrin. In addition, the sic mutant was phagocytosed and killed by human polymorphonuclear leukocytes significantly better than the wild-type strain, and Sic colocalized with ezrin in discrete regions of polymorphonuclear leukocytes. The data suggest that binding of Sic to ezrin alters cellular processes critical for efficient GAS contact, internalization, and killing. Sic enhances bacterial survival by enabling the pathogen to avoid the intracellular environment. This process contributes to the abundance of M1 GAS in human infections and their ability to cause epidemics.

Indexed as

ActinsAmino Acid SequenceAntibodies, BacterialBacterial AdhesionBinding SitesComplement Inactivator ProteinsCytoskeletal ProteinsEpithelial CellsEzrinHumansMicrofilament ProteinsMolecular Sequence DataNeutrophilsPhosphoproteinsRespiratory Tract InfectionsSequence AlignmentActinsAntibodies, BacterialComplement Inactivator ProteinsCytoskeletal ProteinsEzrinMicrofilament ProteinsmoesinPhosphoproteins

Identifiers

PMID12032337
PMCPMC124310
OpenAlexW2140028343

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.