Evidence map›Paper›PMID 34439354›Full record

ArticleCancers2021

Mapping Epitopes Recognised by Autoantibodies Shows Potential for the Diagnosis of High-Grade Serous Ovarian Cancer and Monitoring Response to Therapy for This Malignancy.

Rhiane Moody, Kirsty Wilson, Nirmala Chandralega Kampan, Orla M McNally, Thomas W Jobling, Anthony Jaworowski, Andrew N Stephens, Magdalena Plebanski

Abstract read
In one paragraph

Article in Cancers, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. Review
  2. 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

8 authors.

Rhiane MoodySchool of Health and Biomedical Sciences, RMIT University, Bundoora, VIC 3083, Australia.
Kirsty WilsonSchool of Health and Biomedical Sciences, RMIT University, Bundoora, VIC 3083, Australia.
Nirmala Chandralega KampanDepartment of Obstetrics and Gynaecology, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur 56000, Malaysia.
Orla M McNallyGynaeoncology Unit, Royal Women's Hospital, Parkville, VIC 3052, Australia.
Thomas W JoblingDepartment of Gynaecological Oncology, Monash Medical Centre, Bentleigh East, VIC 3165, Australia.
Anthony JaworowskiSchool of Health and Biomedical Sciences, RMIT University, Bundoora, VIC 3083, Australia.
Andrew N StephensHudson Institute of Medical Research, Clayton, VIC 3168, Australia.ORCID 0000-0003-2420-8458
Magdalena PlebanskiSchool of Health and Biomedical Sciences, RMIT University, Bundoora, VIC 3083, Australia.ORCID 0000-0001-6889-3667

Funding

National Health and Medical Research Council 1154850
6 · The paper itself

Abstract

Autoantibodies recognising phosphorylated heat shock factor 1 (HSF1-PO4) protein are suggested as potential new diagnostic biomarkers for early-stage high-grade serous ovarian cancer (HGSOC). We predicted in silico B-cell epitopes in human and murine HSF1. Three epitope regions were synthesised as peptides. Circulating immunoglobulin A (cIgA) against the predicted peptide epitopes or HSF1-PO4 was measured using ELISA, across two small human clinical trials of HGSOC patients at diagnosis. To determine whether chemotherapy would promote changes in reactivity to either HSF1-PO4 or the HSF-1 peptide epitopes, IgA responses were further assessed in a sample of patients after a full cycle of chemotherapy. Anti-HSF1-PO4 responses correlated with antibody responses to the three selected epitope regions, regardless of phosphorylation, with substantial cross-recognition of the corresponding human and murine peptide epitope variants. Assessing reactivity to individual peptide epitopes, compared to HSF1-PO4, improved assay sensitivity. IgA responses to HSF1-PO4 further increased significantly post treatment, indicating that HSF1-PO4 is a target for immunity in response to chemotherapy. Although performed in a small cohort, these results offer potential insights into the interplay between autoimmunity and ovarian cancer and offer new peptide biomarkers for early-stage HGSOC diagnosis, to monitor responses to chemotherapy, and widely for pre-clinical HGSOC research.

Indexed as

biomarkersepitope mappingHSF1IgAovarian cancer peptides

Identifiers

PMID34439354
PMCPMC8392293

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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.