Evidence map›Paper›PMID 23184228›Full record

ArticlePharmaceutical research2013

Accelerated blood clearance of PEGylated PLGA nanoparticles following repeated injections: effects of polymer dose, PEG coating, and encapsulated anticancer drug.

Roonak Saadati, Simin Dadashzadeh, Zahra Abbasian, Hoorieh Soleimanjahi

Abstract read
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Article in Pharmaceutical research, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing 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

40 citing papers in PubMed.

  1. Review
  2. CD47 peptide-cloaked lipid nanoparticles promote cell-specific mRNA delivery.Molecular therapy : the journal of the American Society of Gene Therapy · 2025
    Article
  3. Review
  4. Review
  5. Biomimetic erythrocyte-based drug delivery systems for organ-targeted therapy.Frontiers in bioengineering and biotechnology · 2025
    Review
  6. Review
  7. Article
  8. Interplay between Liposomes and IgM: Principles, Challenges, and Opportunities.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2023
    Review
  9. Nanomaterials and Their Impact on the Immune System.International journal of molecular sciences · 2023
    Review
  10. Review
  11. Article
  12. Review
  13. Review
  14. Review
  15. Article
  16. Review
  17. Review
  18. Review
  19. The Use of Lactose as an Alternative Coating for Nanoparticles.Journal of pharmaceutical sciences · 2020
    Article
  20. Review
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.

Roonak SaadatiDepartment of Pharmaceutics, School of Pharmacy, Shahid Beheshti University of Medical Sciences, PO Box 14155-6153, Tehran, Iran.
Simin Dadashzadeh
Zahra Abbasian
Hoorieh Soleimanjahi

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo investigate accelerated blood clearance (ABC) induction upon repeated injections of PLGA-PEG nanoparticles as a commonly used polymeric drug carrier.

methodsEtoposide-loaded PLGA-PEG NPs were developed and administered as the test dose to rats pre-injected with various NP treatments at certain time intervals. Pharmacokinetic parameters of etoposide and production of anti-PEG IgM antibody were evaluated.

resultsA notable ABC effect was induced by a wide range of polymer doses (0.1 to 20 mg) of empty NPs, accompanied by IgM secretion. However, a further increase in polymer dose resulted not only in the abrogation of the observed ABC induction but also in distinctly a higher value for AUC of the NPs relative to the control. The data from the PEG-negative group verified the fundamental role of PEG for ABC induction. The first injection of etoposide-containing PEGylated nanoparticles (a cell cycle phase-specific drug) produced a strong ABC phenomenon. Three sequential administrations of etoposide-loaded NPs abolished ABC, although a high level of IgM was still detected, which suggests saturation with insignificant poisoning of immune cells.

conclusionThe presented results demonstrate the importance of clinical evaluations for PLGA-PEG nanocarriers that consider the administration schedule in multiple drug delivery, particularly in cancer chemotherapy.

Indexed as

AnimalsAntibodiesAntineoplastic Agents, PhytogenicDrug CarriersEtoposideImmunoglobulin MInjections, IntravenousLactic AcidMaleNanoparticlesPolyethylene GlycolsPolyglycolic AcidPolylactic Acid-Polyglycolic Acid CopolymerRatsRats, WistarAntibodiesAntineoplastic Agents, PhytogenicDrug CarriersEtoposideImmunoglobulin MLactic AcidPolyethylene GlycolsPolyglycolic AcidPolylactic Acid-Polyglycolic Acid Copolymer

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Registered trials

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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.