Evidence map›Paper›PMID 21734244›Full record

ReviewClinical microbiology reviews2011

Mechanisms of obligatory intracellular infection with Anaplasma phagocytophilum.

Yasuko Rikihisa

Open access · bronzeAbstract readReview
In one paragraph

Review in Clinical microbiology reviews, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 134 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
134citing papers in PubMed, 1 pooled it
8.7field-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

134 citing papers in PubMed, 1 synthesis or guideline pooled it, 228 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Machine Learning-Based Detection ofPathogens (Basel, Switzerland) · 2026
    Article
  5. mBio · 2026
    Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Occurrence of Tick-Borne Pathogens inVeterinary medicine international · 2026
    Article
  11. Article
  12. Acquired tick resistance inInfection and immunity · 2025
    Article
  13. Article
  14. Global prevalence ofNew microbes and new infections · 2025
    Article
  15. European Brown hare (International journal for parasitology. Parasites and wildlife · 2025
    Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article

74 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

1 author at 1 institution in 1 country.

Yasuko RikihisaDepartment of Veterinary Biosciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH 43210, USA. rikihisa.1@osu.edu
The Ohio State University · US

Funding

TYPE IV SECRETION &SIGNAL TRANSDUCTION IN EHRLICHIOSISR01AI054476 · NIAID · OHIO STATE UNIVERSITY · PI RIKIHISA, YASUKO · 2004 to 2013
$3.8M
Comparison of Human Ehrlichiosis Agent GenomesR01AI047885 · NIAID · OHIO STATE UNIVERSITY · PI RIKIHISA, YASUKO · 2000 to 2010
$3.0M
EHRLICHIACIDAL MECHANISM IN MACROPHAGESR01AI030010 · NIAID · OHIO STATE UNIVERSITY · PI RIKIHISA, YASUKO · 1990 to 2009
$2.4M
GENE EXPRESSION BY HUMAN GRANULOCYTIC EHRLICHIOSIS AGR01AI047407 · NIAID · OHIO STATE UNIVERSITY · PI RIKIHISA, YASUKO · 2000 to 2004
$1.6M
NIAID NIH HHS R01 AI030010NIAID NIH HHS R01AI030010NIAID NIH HHS R01 AI047407NIAID NIH HHS R01 AI047885NIAID NIH HHS R01AI047885NIAID NIH HHS R01 AI054476NIAID NIH HHS R01AI054476
6 · The paper itself

Abstract

Anaplasma phagocytophilum persists in nature by cycling between mammals and ticks. Human infection by the bite of an infected tick leads to a potentially fatal emerging disease called human granulocytic anaplasmosis. A. phagocytophilum is an obligatory intracellular bacterium that replicates inside mammalian granulocytes and the salivary gland and midgut cells of ticks. A. phagocytophilum evolved the remarkable ability to hijack the regulatory system of host cells. A. phagocytophilum alters vesicular traffic to create an intracellular membrane-bound compartment that allows replication in seclusion from lysosomes. The bacterium downregulates or actively inhibits a number of innate immune responses of mammalian host cells, and it upregulates cellular cholesterol uptake to acquire cholesterol for survival. It also upregulates several genes critical for the infection of ticks, and it prolongs tick survival at freezing temperatures. Several host factors that exacerbate infection have been identified, including interleukin-8 (IL-8) and cholesterol. Host factors that overcome infection include IL-12 and gamma interferon (IFN-γ). Two bacterial type IV secretion effectors and several bacterial proteins that associate with inclusion membranes have been identified. An understanding of the molecular mechanisms underlying A. phagocytophilum infection will foster the development of creative ideas to prevent or treat this emerging tick-borne disease.

Indexed as

Anaplasma phagocytophilumAnaplasmosisAnimalsDisease Transmission, InfectiousEhrlichiosisGene Expression Regulation, BacterialHumans

Identifiers

PMID21734244
PMCPMC3131063
OpenAlexW2150426811

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.