Evidence map›Paper›PMID 26529027›Full record

ArticleVaccines2015

A Nanoparticle Based Sp17 Peptide Vaccine Exposes New Immuno-Dominant and Species Cross-reactive B Cell Epitopes.

Sue D Xiang, Qian Gao, Kirsty L Wilson, Arne Heyerick, Magdalena Plebanski

Open access · goldAbstract read
In one paragraph

Article in Vaccines, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
0.4field-weighted citation impact, top 38% 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

14 citing papers in PubMed, 15 citations in OpenAlex.

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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 2 institutions in 1 country.

Sue D XiangDepartment of Immunology and Pathology, Central Clinical School, Faculty of Medicine, Nursing and Health Sciences, Monash University, 89 Commercial Rd, Melbourne, VIC 3004, Australia. Sue.Xiang@monash.edu.
Qian GaoDepartment of Immunology and Pathology, Central Clinical School, Faculty of Medicine, Nursing and Health Sciences, Monash University, 89 Commercial Rd, Melbourne, VIC 3004, Australia. qgao10@student.monash.edu.
Kirsty L WilsonDepartment of Immunology and Pathology, Central Clinical School, Faculty of Medicine, Nursing and Health Sciences, Monash University, 89 Commercial Rd, Melbourne, VIC 3004, Australia. Kirsty.Wilson@monash.edu.
Arne HeyerickPX Biosolutions Pty Ltd, PO Box 290, South Melbourne, VIC 3205, Australia. Arne.Heyerick@pxbiosolutions.com.
Magdalena PlebanskiDepartment of Immunology and Pathology, Central Clinical School, Faculty of Medicine, Nursing and Health Sciences, Monash University, 89 Commercial Rd, Melbourne, VIC 3004, Australia. Magdalena.Plebanski@monash.edu.
Monash University · AUAustralian Regenerative Medicine Institute · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Sperm protein antigen 17 (Sp17), expressed in primary as well as in metastatic lesions in >83% of patients with ovarian cancer, is a promising ovarian cancer vaccine candidate. Herein we describe the formulation of nanoparticle based vaccines based on human Sp17 (hSp17) sequence derived peptides, and map the immuno-dominant T cell and antibody epitopes induced using such formulations. The primary T and B cell immuno-dominant region within Sp17 was found to be the same when using biocompatible nanoparticle carriers or the conventional "mix-in" pro-inflammatory adjuvant CpG, both mapping to amino acids (aa) 111-142. However, delivery of hSp17111-142 as a nanoparticle conjugate promoted a number of new properties, changing the dominant antibody isotype induced from IgG2a to IgG1 and the fine specificity of the B cell epitopes within hSp17111-142, from an immuno-dominant region 134-142 aa for CpG, to region 121-138 aa for nanoparticles. Associated with this change in specificity was a substantial increase in antibody cross-reactivity between mouse and human Sp17. These results indicate conjugation of antigen to nanoparticles can have major effects on fine antigen specificity, which surprisingly could be beneficially used to increase the cross-reactivity of antibody responses.

Indexed as

antibodycancercross-reactivityimmunodomunantnanoparticlesovarianSp17testis-antigenvaccine

Identifiers

PMID26529027
PMCPMC4693223
OpenAlexW1832490013

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.