Evidence map›Paper›PMID 22046311›Full record

ArticlePloS one2011

Exosomes from Plasmodium yoelii-infected reticulocytes protect mice from lethal infections.

Lorena Martin-Jaular, Ernesto S Nakayasu, Mireia Ferrer, Igor C Almeida, Hernando A Del Portillo

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 110 papers.

0numbers the graph read from it
0cells of the map it votes in
110citing papers in PubMed
3.6field-weighted citation impact, top 6% 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

110 citing papers in PubMed, 196 citations in OpenAlex.

  1. Extracellular Vesicles ofJournal of extracellular biology · 2026
    Article
  2. Unraveling the Potential ofPharmaceutics · 2026
    Article
  3. Review
  4. New therapeutic strategies for malaria.Biophysical reviews · 2025
    Review
  5. Article
  6. Review
  7. Article
  8. Review
  9. Review
  10. Review
  11. Immunoregulation role of the erythroid cells.Frontiers in immunology · 2024
    Review
  12. UnveilingFrontiers in cellular and infection microbiology · 2024
    Article
  13. Article
  14. Review
  15. Article
  16. Review
  17. Erythropoiesis and Malaria, a Multifaceted Interplay.International journal of molecular sciences · 2022
    Review
  18. Article
  19. Article
  20. Extracellular Vesicles fromPathogens (Basel, Switzerland) · 2022
    Article

50 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

5 authors at 3 institutions in 2 countries.

Lorena Martin-JaularPoverty-Related Diseases, Barcelona Centre for International Health Research, Barcelona, Spain.
Ernesto S Nakayasu
Mireia Ferrer
Igor C Almeida
Hernando A Del Portillo
Barcelona Centre for International Affairs · ESThe University of Texas at El Paso · USInstitució Catalana de Recerca i Estudis Avançats · ES

Funding

TOXICOLOGY PROJECTG12RR008124 · NCRR · UNIVERSITY OF TEXAS EL PASO · PI AGUILERA, RENATO J · 1992 to 2011
$20.8M
NCRR NIH HHS 5G12RR008124-16A1NCRR NIH HHS 5G12RR008124-16A1S1NCRR NIH HHS G12 RR008124
6 · The paper itself

Abstract

Exosomes are 30-100-nm membrane vesicles of endocytic origin that are released after the fusion of multivesicular bodies (MVBs) with the plasma membrane. While initial studies suggested that the role of exosomes was limited to the removal of proteins during the maturation of reticulocytes to erythrocytes, recent studies indicate that they are produced by different types of cells and are involved in promoting inter-cellular communication and antigen presentation. Here, we describe the isolation and characterization of exosomes from peripheral blood of BALB/c mice infected with the reticulocyte-prone non-lethal Plasmodium yoelii 17X strain. Importantly, proteomic analysis revealed the presence of parasite proteins in these vesicles. Moreover, immunization of mice with purified exosomes elicited IgG antibodies capable of recognizing P. yoelii-infected red blood cells. Furthermore, lethal challenge of immunized mice with the normocyte-prone lethal P. yoelii 17XL strain caused a significant attenuation in the course of parasitaemia, increased survival time, and altered the cell tropism to reticulocytes. These results were obtained also when the exosomes were isolated from a P. yoelii-infected reticulocyte culture indicating that reticulocyte-derived exosomes carry antigens and are involved in immune modulation. Moreover, inclusion of CpG ODN 1826 in exosome immunizations elicited IgG2a and IgG2b antibodies and promoted survival, clearance of parasites and subsequent sterile protection of 83% of the animals challenged with P. yoelli 17XL. To our knowledge, this is the first report of immune responses elicited by exosomes derived from reticulocytes opening new avenues for the modulation of anti-malaria responses.

Indexed as

AnimalsAntibody FormationExosomesImmunizationImmunoglobulin GMalariaMiceMice, Inbred BALB CParasitemiaPlasmodium yoeliiReticulocytesTreatment OutcomeImmunoglobulin G

Identifiers

PMID22046311
PMCPMC3202549
OpenAlexW1996354576

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.