Evidence map›Paper›PMID 16428725›Full record

ArticleInfection and immunity2006

Nontypeable Haemophilus influenzae adheres to intercellular adhesion molecule 1 (ICAM-1) on respiratory epithelial cells and upregulates ICAM-1 expression.

Vasanthi Avadhanula, Carina A Rodriguez, Glen C Ulett, Lauren O Bakaletz, Elisabeth E Adderson

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed
4.8field-weighted citation impact, top 4% 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

47 citing papers in PubMed, 97 citations in OpenAlex.

  1. Review
  2. Inflammatory Responses to Non-TypeablePathogens (Basel, Switzerland) · 2025
    Article
  3. Review
  4. Review
  5. Non-typeableFrontiers in cellular and infection microbiology · 2023
    Article
  6. Engagement of CEACAM1 byMicroorganisms · 2021
    Article
  7. Review
  8. Review
  9. Review
  10. Article
  11. Non-TypeableInternational journal of molecular sciences · 2020
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Review
  18. Review
  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

5 authors at 3 institutions in 1 country.

Vasanthi AvadhanulaDepartment of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN 38105, USA.
Carina A Rodriguez
Glen C Ulett
Lauren O Bakaletz
Elisabeth E Adderson
St. Jude Children's Research Hospital · USThe Ohio State University · USUniversity of Tennessee Health Science Center · US

Funding

Viral Vector Technology (VVTSR)P30CA021765 · NCI · ST. JUDE CHILDREN'S RESEARCH HOSPITAL · PI SUZANNE J. BAKER · 1985 to 2026
$166.9M
DETERMINANTS OF H. INFLUENZAE VIRULENCE IN OTITIS MEDIAR01DC003915 · NIDCD · RESEARCH INST NATIONWIDE CHILDREN'S HOSP · PI GOODMAN, STEVEN D · 1999 to 2025
$12.5M
DETERMINANTS OF H. INFLUENZAE VIRULENCE IN OTITIS MEDIAR55DC003915 · NIDCD · RESEARCH INST NATIONWIDE CHILDREN'S HOSP · PI BAKALETZ, LAUREN O · 1999 to 1999
–
NCI NIH HHS CA21765NCI NIH HHS P30 CA021765NIDCD NIH HHS DC03915NIDCD NIH HHS R01 DC003915NIDCD NIH HHS R55 DC003915
6 · The paper itself

Abstract

Nontypeable Haemophilus influenzae (NTHI) is an important respiratory pathogen. NTHI initiates infection by adhering to the airway epithelium. Here, we report that NTHI interacts with intracellular adhesion molecule 1 (ICAM-1) expressed by respiratory epithelial cells. A fourfold-higher number of NTHI bacteria adhered to Chinese hamster ovary (CHO) cells transfected with human ICAM-1 (CHO-ICAM-1) than to control CHO cells (P < or = 0.005). Blocking cell surface ICAM-1 with specific antibody reduced the adhesion of NTHI to A549 respiratory epithelial cells by 37% (P = 0.001) and to CHO-ICAM-1 cells by 69% (P = 0.005). Preincubating the bacteria with recombinant ICAM-1 reduced adhesion by 69% (P = 0.003). The adherence to CHO-ICAM-1 cells of NTHI strains deficient in the adhesins P5, P2, HMW1/2, and Hap or expressing a truncated lipooligosaccharide was compared to that of parental strains. Only strain 1128f-, which lacks the outer membrane protein (OMP) P5-homologous adhesin (P5 fimbriae), adhered less well than its parental strain. The numbers of NTHI cells adhering to CHO-ICAM-1 cells were reduced by 67% (P = 0.009) following preincubation with anti-P5 antisera. Furthermore, recombinant ICAM bound to an OMP preparation from strain 1128f+, which expresses P5, but not to that from its P5-deficient mutant, confirming a specific interaction between ICAM-1 and P5 fimbriae. Incubation of respiratory epithelial cells with NTHI increased ICAM-1 expression fourfold (P=0.001). Adhesion of NTHI to the respiratory epithelium, therefore, upregulates the expression of its own receptor. Blocking interactions between NTHI P5 fimbriae and ICAM-1 may reduce respiratory colonization by NTHI and limit the frequency and severity of NTHI infection.

Indexed as

Bacterial AdhesionUp-RegulationAnimalsBacterial Outer Membrane ProteinsCell LineCHO CellsCricetinaeEpithelial CellsFlow CytometryHaemophilus influenzaeHumansIntercellular Adhesion Molecule-1Respiratory MucosaTransfectionVirulenceBacterial Outer Membrane ProteinsIntercellular Adhesion Molecule-1outer membrane protein P5, Haemophilus

Identifiers

PMID16428725
PMCPMC1360337
OpenAlexW2140928348

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.