Evidence map›Paper›PMID 21182941›Full record

ArticleEuropean journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V2011

Relationship between the size of nanoparticles and their adjuvant activity: data from a study with an improved experimental design.

Xinran Li, Brian R Sloat, Nijaporn Yanasarn, Zhengrong Cui

Abstract read
In one paragraph

Article in European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
–field-weighted citation impact
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

34 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. RSC advances · 2025
    Article
  5. Article
  6. Emerging Cationic Nanovaccines.Pharmaceutics · 2024
    Review
  7. Review
  8. Virus-like Particle (VLP) Vaccines for Cancer Immunotherapy.International journal of molecular sciences · 2023
    Review
  9. Review
  10. Article
  11. Article
  12. Article
  13. Using PAMPs and DAMPs as adjuvants in cancer vaccines.Human vaccines & immunotherapeutics · 2021
    Review
  14. Review
  15. Review
  16. Development of Different Methods for PreparingFrontiers in immunology · 2020
    Article
  17. Review
  18. Article
  19. Article
  20. Article
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.

Xinran LiThe University of Texas at Austin, College of Pharmacy, Pharmaceutics Division, Austin, TX 78723, USA.
Brian R Sloat
Nijaporn Yanasarn
Zhengrong Cui

Funding

Topical DNA immunization by modifying the hair follicle cycleR01AI078304 · NIAID · UNIVERSITY OF TEXAS AT AUSTIN · PI CUI, ZHENGRONG · 2008 to 2011
$1.4M
A tri-antigen nasal anthrax vaccine against toxins and vegetative bacilli R21AI070538 · NIAID · UNIVERSITY OF TEXAS AT AUSTIN · PI CUI, ZHENGRONG · 2007 to 2008
$379k
NIAID NIH HHS AI070538NIAID NIH HHS AI078304NIAID NIH HHS R01 AI078304NIAID NIH HHS R21 AI070538
6 · The paper itself

Abstract

There is a growing interest in identifying the relationship between the size of nanoparticles and their adjuvant activity, but the results from recent studies remain controversial. To address the controversy, it was thought that one should pay attention to the nanoparticle formulations to make sure that the antigen-loaded nanoparticles to be compared are not only different in particle size, but more importantly, as identical to each other as possible in all other formulation properties. In the present study, using ovalbumin (OVA) as a model antigen conjugated onto nanoparticles engineered from lecithin/glyceryl monostearate-in-water emulsions, we prepared OVA-nanoparticles of 230 nm and 708 nm. Before evaluating the immune responses induced by them in a mouse model, we made sure that: (i) the sizes of the two OVA-nanoparticles did not extensively overlap, (ii) the nanoparticles have similar zeta potentials and comparable antigen-loading, and (iii) the nanoparticles did not aggregate when suspended in simulated biological media. We then showed that when subcutaneously injected into mice, the 230 nm OVA-conjugated nanoparticles induced stronger OVA-specific antibody and cellular immune responses than the 708 nm OVA-nanoparticles. Future studies attempting to correlate the size of nanoparticles and their adjuvant activities need to consider formulation parameters to ensure that the particles are different only in size and are stable before and after injection.

Indexed as

NanoparticlesParticle SizeAdjuvants, ImmunologicAnimalsCell LineEnzyme-Linked Immunosorbent AssayMaleMiceMice, Inbred C57BLMicroscopy, Electron, TransmissionMicroscopy, FluorescenceOvalbuminAdjuvants, ImmunologicOvalbumin

Identifiers

PMID21182941
PMCPMC3065961

What OpenQuestion holds

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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.