Evidence map›Paper›PMID 12065523›Full record

ArticleInfection and immunity2002

Chlamydia trachomatis induces remodeling of the actin cytoskeleton during attachment and entry into HeLa cells.

Reynaldo A Carabeo, Scott S Grieshaber, Elizabeth Fischer, Ted Hackstadt

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 107 papers.

0numbers the graph read from it
0cells of the map it votes in
107citing papers in PubMed
5.0field-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

107 citing papers in PubMed, 163 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Complete deletion of theInfection and immunity · 2025
    Article
  6. mSphere · 2025
    Article
  7. Review
  8. The N-terminus of theMicrobiology spectrum · 2025
    Article
  9. Chlamydia trachomatis invasion: a duet of effectors.Biochemical Society transactions · 2025
    Review
  10. The N-terminus of thebioRxiv : the preprint server for biology · 2024
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Dynamin-dependent entry ofResearch square · 2023
    Article
  17. Type III Secretion inMicrobiology and molecular biology reviews : MMBR · 2023
    Review
  18. Review
  19. Journal of thoracic disease · 2023
    Article
  20. Frontiers in cellular and infection microbiology · 2023
    Article

47 more citing papers are in PubMed but not listed here.

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

4 authors at 1 institution in 1 country.

Reynaldo A CarabeoHost-Parasite Interactions Section, Laboratory of Intracellular Parasites, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Montana 59840, USA.
Scott S Grieshaber
Elizabeth Fischer
Ted Hackstadt
National Institute of Allergy and Infectious Diseases · US

Funding

Cellular Biology Of Host/parasite InteractionsZIAAI000567 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI HACKSTADT, TED · 2009 to 2025
$16.3M
RICKETTSIAL SURFACE STRUCTURE AND FUNCTIONZ01AI000567 · NIAID · NIAID EXTRAMURAL ACTIVITIES · PI HACKSTADT, DAVID (TED) · 1991 to 2008
$2.5M
ULTRASTRUCTURAL ANALYSIS OF ANTIGENIC DETERMINANTS IN PATHOGENSZ01AI000488 · NIAID · NIAID EXTRAMURAL ACTIVITIES · PI GARON, CLAUDE · 1987 to 2002
–
6 · The paper itself

Abstract

To elucidate the host cell machinery utilized by Chlamydia trachomatis to invade epithelial cells, we examined the role of the actin cytoskeleton in the internalization of chlamydial elementary bodies (EBs). Treatment of HeLa cells with cytochalasin D markedly inhibited the internalization of C. trachomatis serovar L2 and D EBs. Association of EBs with HeLa cells induced localized actin polymerization at the site of attachment, as visualized by either phalloidin staining of fixed cells or the active recruitment of GFP-actin in viable infected cells. The recruitment of actin to the specific site of attachment was accompanied by dramatic changes in the morphology of cell surface microvilli. Ultrastructural studies revealed a transient microvillar hypertrophy that was dependent upon C. trachomatis attachment, mediated by structural components on the EBs, and cytochalasin D sensitive. In addition, a mutant CHO cell line that does not support entry of C. trachomatis serovar L2 did not display such microvillar hypertrophy following exposure to L2 EBs, which is in contrast to infection with serovar D, to which it is susceptible. We propose that C. trachomatis entry is facilitated by an active actin remodeling process that is induced by the attachment of this pathogen, resulting in distinct microvillar reorganization throughout the cell surface and the formation of a pedestal-like structure at the immediate site of attachment and entry.

Indexed as

ActinsAnimalsChlamydia trachomatisCHO CellsCricetinaeCytochalasin DCytoskeletonGreen Fluorescent ProteinsHeLa CellsHumansLuminescent ProteinsMicrovilliPhosphatidylinositol 3-KinasesRecombinant Fusion ProteinsActinsCytochalasin DGreen Fluorescent ProteinsLuminescent ProteinsPhosphatidylinositol 3-KinasesRecombinant Fusion Proteins

Identifiers

PMID12065523
PMCPMC128046
OpenAlexW2116183538

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.