ArticleBritish journal of cancer2014
The glycosphingolipid P₁ is an ovarian cancer-associated carbohydrate antigen involved in migration.
Article in British journal of cancer, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.
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.
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.
Who cites it
24 citing papers in PubMed, 6 citations in OpenAlex.
- P1PK blood group antigens in birds: implications for veterinary blood transfusion, human and pet health.BMC veterinary research · 2025Article
- Human Gb3/CD77 synthase: a glycosyltransferase at the crossroads of immunohematology, toxicology, and cancer research.Cellular & molecular biology letters · 2024Review
- Glycan diversity in ovarian cancer: Unraveling the immune interplay and therapeutic prospects.Seminars in immunopathology · 2024Review
- Serum antibody screening using glycan arrays.Chemical Society reviews · 2024Review
- Pan-cancer analysis of B3GNT5 with potential implications for cancer immunotherapy and cancer stem cell stemness.PloS one · 2024Article
- Role of glycosphingolipid biosynthesis coregulators in malignant progression of thymoma.International journal of biological sciences · 2023Article
- Article
- Deciphering the Importance of Glycosphingolipids on Cellular and Molecular Mechanisms Associated with Epithelial-to-Mesenchymal Transition in Cancer.Biomolecules · 2021Review
- B3GNT5 is a novel marker correlated with stem-like phenotype and poor clinical outcome in human gliomas.CNS neuroscience & therapeutics · 2020Article
- PODO447: a novel antibody to a tumor-restricted epitope on the cancer antigen podocalyxin.Journal for immunotherapy of cancer · 2020Article
- Evaluation of Sialyl-Lactotetra as a Marker for Epithelial Ovarian Tumors.Frontiers in oncology · 2020Article
- Real-time cell analysis system in cytotoxicity applications: Usefulness and comparison with tetrazolium salt assays.Toxicology reports · 2020Review
- Anti-glycan IgM repertoires in newborn human cord blood.PloS one · 2019Article
- Development of a Multiplex Glycan Microarray Assay and Comparative Analysis of Human Serum Anti-Glycan IgA, IgG, and IgM Repertoires.ACS omega · 2018Article
- Biological Roles of Aberrantly Expressed Glycosphingolipids and Related Enzymes in Human Cancer Development and Progression.Frontiers in physiology · 2018Review
- Single nucleotide polymorphisms in A4GALT spur extra products of the human Gb3/CD77 synthase and underlie the P1PK blood group system.PloS one · 2018Article
- Article
- Tissue glycomics distinguish tumour sites in women with advanced serous adenocarcinoma.Molecular oncology · 2017Article
- Altered (neo-) lacto series glycolipid biosynthesis impairs α2-6 sialylation on N-glycoproteins in ovarian cancer cells.Scientific reports · 2017Article
- Naturally occurring anti-glycan antibodies binding to Globo H-expressing cells identify ovarian cancer patients.Journal of ovarian research · 2017Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
12 authors at 3 institutions in 2 countries.
Funding
Abstract
backgroundThe level of plasma-derived naturally circulating anti-glycan antibodies (AGA) to P1 trisaccharide has previously been shown to significantly discriminate between ovarian cancer patients and healthy women. Here we aim to identify the Ig class that causes this discrimination, to identify on cancer cells the corresponding P1 antigen recognised by circulating anti-P1 antibodies and to shed light into the possible function of this glycosphingolipid.
methodsAn independent Australian cohort was assessed for the presence of anti-P1 IgG and IgM class antibodies using suspension array. Monoclonal and human derived anti-glycan antibodies were verified using three independent glycan-based immunoassays and flow cytometry-based inhibition assay. The P1 antigen was detected by LC-MS/MS and flow cytometry. FACS-sorted cell lines were studied on the cellular migration by colorimetric assay and real-time measurement using xCELLigence system.
resultsHere we show in a second independent cohort (n=155) that the discrimination of cancer patients is mediated by the IgM class of anti-P1 antibodies (P=0.0002). The presence of corresponding antigen P1 and structurally related epitopes in fresh tissue specimens and cultured cancer cells is demonstrated. We further link the antibody and antigen (P1) by showing that human naturally circulating and affinity-purified anti-P1 IgM isolated from patients ascites can bind to naturally expressed P1 on the cell surface of ovarian cancer cells. Cell-sorted IGROV1 was used to obtain two study subpopulations (P1-high, 66.1%; and P1-low, 33.3%) and observed that cells expressing high P1-levels migrate significantly faster than those with low P1-levels.
conclusionsThis is the first report showing that P1 antigen, known to be expressed on erythrocytes only, is also present on ovarian cancer cells. This suggests that P1 is a novel tumour-associated carbohydrate antigen recognised by the immune system in patients and may have a role in cell migration. The clinical value of our data may be both diagnostic and prognostic; patients with low anti-P1 IgM antibodies present with a more aggressive phenotype and earlier relapse.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.