Evidence map›Paper›PMID 28546072›Full record

ArticleInternational journal of pharmaceutics2017

Dendrimer-conjugated peptide vaccine enhances clearance of Chlamydia trachomatis genital infection.

Ingrid S Ganda, Qian Zhong, Mirabela Hali, Ricardo L C Albuquerque, Francine F Padilha, Sandro R P da Rocha, Judith A Whittum-Hudson

Abstract read
In one paragraph

Article in International journal of pharmaceutics, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
2.8field-weighted citation impact, top 9% 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

16 citing papers in PubMed, 54 citations in OpenAlex.

  1. Review
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  4. Coupling enterotoxigenic Escherichia coli heat-stable peptide toxin with 8-arm PEG enhances immunogenicity.Journal of peptide science : an official publication of the European Peptide Society · 2025
    Article
  5. Review
  6. Review
  7. Alternative strategies forFrontiers in microbiology · 2022
    Review
  8. Review
  9. Nanotechnology in reproductive medicine: Opportunities for clinical translation.Clinical and experimental reproductive medicine · 2020
    Article
  10. Review
  11. Review
  12. Review
  13. RSC advances · 2020
    Article
  14. Article
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  16. 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

7 authors at 2 institutions in 2 countries.

Ingrid S GandaBiomaterials Laboratory, Technology and Research Institute, Tiradentes University, Aracaju, SE, 49032-490, Brazil; Department of Chemical Engineering and Materials Science, Wayne State University, Detroit, MI 48202, USA; Departments of Immunology and Microbiology, Internal Medicine (Rheumatology), and Ophthalmology, School of Medicine, Wayne State University, Detroit, MI 48201, USA. Electronic address: ingrid.ganda@gmail.com.
Qian ZhongDepartment of Chemical Engineering and Materials Science, Wayne State University, Detroit, MI 48202, USA. Electronic address: qzhong@stanford.edu.
Mirabela HaliDepartments of Immunology and Microbiology, Internal Medicine (Rheumatology), and Ophthalmology, School of Medicine, Wayne State University, Detroit, MI 48201, USA. Electronic address: mhali@med.wayne.edu.
Ricardo L C AlbuquerqueLaboratory of Morphology and Structural Biology, Technology and Research Institute, Tiradentes University, Aracaju, SE, 49032-490, Brazil. Electronic address: ricardo.patologia@uol.com.br.
Francine F PadilhaBiomaterials Laboratory, Technology and Research Institute, Tiradentes University, Aracaju, SE, 49032-490, Brazil. Electronic address: fpadilha@yahoo.com.
Sandro R P da RochaBiomaterials Laboratory, Technology and Research Institute, Tiradentes University, Aracaju, SE, 49032-490, Brazil; Department of Chemical Engineering and Materials Science, Wayne State University, Detroit, MI 48202, USA. Electronic address: srdarocha@vcu.edu.
Judith A Whittum-HudsonDepartments of Immunology and Microbiology, Internal Medicine (Rheumatology), and Ophthalmology, School of Medicine, Wayne State University, Detroit, MI 48201, USA. Electronic address: jhudson@med.wayne.edu.
Universidade Tiradentes · BRWayne State University · US

Funding

Biodegradable Nanoparticles for Targeted Antibiotic DeliveryR01AI080928 · NIAID · UNIVERSITY OF MINNESOTA · PI PANYAM, JAYANTH, WHITTUM-HUDSON, JUDITH A. · 2009 to 2012
$1.6M
NIAID NIH HHS R01 AI080928
6 · The paper itself

Abstract

Peptide-based vaccines have emerged in recent years as promising candidates in the prevention of infectious diseases. However, there are many challenges to maintaining in vivo peptide stability and enhancement of peptide immunogenicity to generate protective immunity which enhances clearance of infections. Here, a dendrimer-based carrier system is proposed for peptide-based vaccine delivery, and shows its anti-microbial feasibility in a mouse model of Chlamydia trachomatis. Chlamydiae are the most prevalent sexually transmitted bacteria worldwide, and also the causal agent of trachoma, the leading cause of preventable infectious blindness. In spite of the prevalence of this infectious agent and the many previous vaccine-related studies, there is no vaccine commercially available. The carrier system proposed consists of generation 4, hydroxyl-terminated, polyamidoamine (PAMAM) dendrimers (G4OH), to which a peptide mimic of a chlamydial glycolipid antigen-Peptide 4 (Pep4, AFPQFRSATLLL) was conjugated through an ester bond. The ester bond between G4OH and Pep4 is expected to break down mainly in the intracellular environment for antigen presentation. Pep4 conjugated to dendrimer induced Chlamydia-specific serum antibodies after subcutaneous immunizations. Further, this new vaccine formulation significantly protected immunized animals from vaginal challenge with infectious Chlamydia trachomatis, and it reduced infectious loads and tissue (genital tract) damage. Pep4 conjugated to G4OH or only mixed with peptide provided enhanced protection compared to Pep4 and adjuvant (i.e. alum), suggesting a potential adjuvant effect of the PAMAM dendrimer. Combined, these results demonstrate that hydroxyl-terminated PAMAM dendrimer is a promising polymeric nanocarrier platform for the delivery of peptide vaccines and this approach has potential to be expanded to other infectious intracellular bacteria and viruses of public health significance.

Indexed as

AnimalsBacterial VaccinesChlamydia InfectionsChlamydia trachomatisDendrimersFemaleMice, Inbred BALB CVaccines, SubunitBacterial VaccinesDendrimersPAMAM StarburstVaccines, SubunitChlamydia trachomatisInfectious diseaseNanovaccinePAMAM dendrimerSubunit peptide vaccine

Identifiers

PMID28546072
PMCPMC5522616
OpenAlexW2620354053

What OpenQuestion holds

Textmetadata
LicenceTDM
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.