Evidence map›Paper›PMID 19028680›Full record

ArticleThe Journal of biological chemistry2009

Host cell autophagy is induced by Toxoplasma gondii and contributes to parasite growth.

Yubao Wang, Louis M Weiss, Amos Orlofsky

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 78 papers.

0numbers the graph read from it
0cells of the map it votes in
78citing papers in PubMed
5.0field-weighted citation impact, top 5% 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

78 citing papers in PubMed, 130 citations in OpenAlex.

  1. The role of autophagy in protozoan infections.Frontiers in cellular and infection microbiology · 2026
    Review
  2. Article
  3. ATG5 Plays a Role inTransboundary and emerging diseases · 2026
    Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. A dynamically evolving war between autophagy and pathogenic microorganisms.Journal of Zhejiang University. Science. B · 2022
    Article
  14. Host autophagy limitsFrontiers in microbiology · 2022
    Article
  15. Frontiers in immunology · 2022
    Article
  16. Article
  17. Review
  18. Article
  19. Review
  20. Revisiting the Mechanisms of Immune Evasion Employed by Human Parasites.Frontiers in cellular and infection microbiology · 2021
    Review

18 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

3 authors at 1 institution in 1 country.

Yubao WangDepartment of Pathology, Albert Einstein College of Medicine, Bronx, New York 10461, USA.
Louis M Weiss
Amos Orlofsky
Albert Einstein College of Medicine · US

Funding

Toxoplasma encephalitis in AIDS:Bradyzoite RegulationsR01AI039454 · NIAID · YESHIVA UNIVERSITY · PI WEISS, LOUIS M. · 1996 to 2009
$3.1M
Regulation of Macrophage Cell Death by Toxoplasma gondiiR01AI055358 · NIAID · ALBERT EINSTEIN COL OF MED YESHIVA UNIV · PI ORLOFSKY, AMOS Z · 2004 to 2008
$2.0M
NIAID NIH HHS AI-39454NIAID NIH HHS AI-55358NIAID NIH HHS R01 AI039454
6 · The paper itself

Abstract

Autophagy has been shown to contribute to defense against intracellular bacteria and parasites. In comparison, the ability of such pathogens to manipulate host cell autophagy to their advantage has not been examined. Here we present evidence that infection by Toxoplasma gondii, an intracellular protozoan parasite, induces host cell autophagy in both HeLa cells and primary fibroblasts, via a mechanism dependent on host Atg5 but independent of host mammalian target of rapamycin suppression. Infection led to the conversion of LC3 to the autophagosome-associated form LC3-II, to the accumulation of LC3-containing vesicles near the parasitophorous vacuole, and to the relocalization toward the vacuole of structures labeled by the phosphatidylinositol 3-phosphate indicator YFP-2xFYVE. The autophagy regulator beclin 1 was concentrated in the vicinity of the parasitophorous vacuole in infected cells. Inhibitor studies indicated that parasite-induced autophagy is dependent on calcium signaling and on abscisic acid. At physiologically relevant amino acid levels, parasite growth became defective in Atg5-deficient cells, indicating a role for host cell autophagy in parasite recovery of host cell nutrients. A flow cytometric analysis of cell size as a function of parasite content revealed that autophagy-dependent parasite growth correlates with autophagy-dependent consumption of host cell mass that is dependent on parasite progression. These findings indicate a new role for autophagy as a pathway by which parasites may effectively compete with the host cell for limiting anabolic resources.

Indexed as

Abscisic AcidAnimalsApoptosis Regulatory ProteinsAutophagyAutophagy-Related Protein 5Beclin-1Calcium SignalingCarrier ProteinsHeLa CellsHumansMembrane ProteinsMiceMicrotubule-Associated ProteinsPhagosomesPhosphotransferases (Alcohol Group Acceptor)ProteinsAbscisic AcidApoptosis Regulatory ProteinsATG5 protein, humanAtg5 protein, mouseAutophagy-Related Protein 5Beclin-1BECN1 protein, humanBecn1 protein, mouseCarrier ProteinsMAP1LC3A protein, humanMap1lc3b protein, mouseMembrane ProteinsMicrotubule-Associated ProteinsMTOR protein, humanmTOR protein, mousePhosphotransferases (Alcohol Group Acceptor)ProteinsTOR Serine-Threonine Kinases

Identifiers

PMID19028680
PMCPMC2615531
OpenAlexW1967351308

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.