Evidence map›Paper›PMID 22001882›Full record

ArticleVaccine2011

Increasing vaccine potency through exosome antigen targeting.

Zachary C Hartman, Junping Wei, Oliver K Glass, Hongtao Guo, Gangjun Lei, Xiao-Yi Yang, Takuya Osada, Amy Hobeika, Alain Delcayre, Jean-Bernard Le Pecq and 3 more

Abstract read
In one paragraph

Article in Vaccine, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 105 papers.

0numbers the graph read from it
0cells of the map it votes in
105citing papers in PubMed
4.9field-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

105 citing papers in PubMed, 198 citations in OpenAlex.

  1. Review
  2. Harnessing Nanocarriers to Advance Vaccine Development.BioDrugs : clinical immunotherapeutics, biopharmaceuticals and gene therapy · 2026
    Review
  3. Review
  4. Review
  5. Review
  6. Vaccines targetingHuman vaccines & immunotherapeutics · 2024
    Article
  7. Article
  8. Article
  9. Review
  10. CEA vaccines.Human vaccines & immunotherapeutics · 2023
    Review
  11. Review
  12. Article
  13. Review
  14. Article
  15. Review
  16. Review
  17. Review
  18. Review
  19. Review
  20. Review

45 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

13 authors at 3 institutions in 1 country.

Zachary C HartmanDuke Comprehensive Cancer Center, Department of Surgery, Duke University Medical Center, Durham, NC 27710, USA.
Junping Wei
Oliver K Glass
Hongtao Guo
Gangjun Lei
Xiao-Yi Yang
Takuya Osada
Amy Hobeika
Alain Delcayre
Jean-Bernard Le Pecq
Michael A Morse
Timothy M Clay
Herbert K Lyerly
Duke Medical Center · USMenlo School · USDuke University Hospital · US

Funding

RNA TRASFECTED DENDRITIC CELLS FOR CANCER IMMUNOTHERAPYP01CA078673 · NCI · DUKE UNIVERSITY · PI MORSE, MICHAEL A · 1999 to 2008
$13.2M
Redirecting Specificity of Viral Specific T CellsR01CA095447 · NCI · DUKE UNIVERSITY · PI CLAY, TIM · 2003 to 2006
$1.1M
NCI NIH HHS P01 CA078673NCI NIH HHS P50 CA89496-01NCI NIH HHS R01 CA095447NCI NIH HHS R01 CA95447
6 · The paper itself

Abstract

While many tumor associated antigens (TAAs) have been identified in human cancers, efforts to develop efficient TAA "cancer vaccines" using classical vaccine approaches have been largely ineffective. Recently, a process to specifically target proteins to exosomes has been established which takes advantage of the ability of the factor V like C1C2 domain of lactadherin to specifically address proteins to exosomes. Using this approach, we hypothesized that TAAs could be targeted to exosomes to potentially increase their immunogenicity, as exosomes have been demonstrated to traffic to antigen presenting cells (APC). To investigate this possibility, we created adenoviral vectors expressing the extracellular domain (ECD) of two non-mutated TAAs often found in tumors of cancer patients, carcinoembryonic antigen (CEA) and HER2, and coupled them to the C1C2 domain of lactadherin. We found that these C1C2 fusion proteins had enhanced expression in exosomes in vitro. We saw significant improvement in antigen specific immune responses to each of these antigens in naïve and tolerant transgenic animal models and could further demonstrate significantly enhanced therapeutic anti-tumor effects in a human HER2+ transgenic animal model. These findings demonstrate that the mode of secretion and trafficking can influence the immunogenicity of different human TAAs, and may explain the lack of immunogenicity of non-mutated TAAs found in cancer patients. They suggest that exosomal targeting could enhance future anti-tumor vaccination protocols. This targeting exosome process could also be adapted for the development of more potent vaccines in some viral and parasitic diseases where the classical vaccine approach has demonstrated limitations.

Indexed as

AdenoviridaeAnimalsAntigen-Presenting CellsAntigens, SurfaceCancer VaccinesCarcinoembryonic AntigenCell Line, TumorErb-b2 Receptor Tyrosine KinasesExosomesGenetic VectorsHumansMiceMice, Inbred BALB CMice, Inbred C57BLMice, TransgenicMilk ProteinsAntigens, SurfaceCancer VaccinesCarcinoembryonic AntigenErb-b2 Receptor Tyrosine KinasesMFGE8 protein, humanMilk ProteinsRecombinant Fusion Proteins

Identifiers

PMID22001882
PMCPMC3350974
OpenAlexW1992571832

What OpenQuestion holds

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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.