Evidence map›Paper›PMID 30735560›Full record

ArticlePloS one2019

Immunomagnetic isolation of circulating melanoma cells and detection of PD-L1 status.

Joseph W Po, Yafeng Ma, Bavanthi Balakrishna, Daniel Brungs, Farhad Azimi, Paul de Souza, Therese M Becker

Abstract read
In one paragraph

Article in PloS one, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing 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

12 citing papers in PubMed.

  1. Review
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  6. PD-L1 Detection on Circulating Melanoma Cells.Methods in molecular biology (Clifton, N.J.) · 2021
    Article
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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

7 authors.

Joseph W PoCentre for Circulating Tumor Cell Diagnostics & Research at the Ingham Institute for Applied Medical Research, Liverpool NSW, Australia.
Yafeng MaCentre for Circulating Tumor Cell Diagnostics & Research at the Ingham Institute for Applied Medical Research, Liverpool NSW, Australia.
Bavanthi BalakrishnaLiverpool Hospital, Liverpool NSW, Australia.
Daniel BrungsCentre for Circulating Tumor Cell Diagnostics & Research at the Ingham Institute for Applied Medical Research, Liverpool NSW, Australia.
Farhad AzimiLiverpool Hospital, Liverpool NSW, Australia.
Paul de SouzaCentre for Circulating Tumor Cell Diagnostics & Research at the Ingham Institute for Applied Medical Research, Liverpool NSW, Australia.
Therese M BeckerCentre for Circulating Tumor Cell Diagnostics & Research at the Ingham Institute for Applied Medical Research, Liverpool NSW, Australia.ORCID 0000-0002-5636-9902

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Personalised medicine targeted to specific biomarkers such as BRAF and c-Kit has radically improved the success of melanoma therapy. More recently, further advances have been made using therapies targeting the immune response. In particular, therapies targeting the PD-1/PD-L1 or CTLA-4 axes alone or in combination have shown more sustained responses in 30-60% of patients. However, these therapies are associated with considerable toxicities and useful biomarkers to predict responders and non-responders are slow to emerge. Here we developed a reliable melanoma circulating tumor cell (CTC) detection method with PD-L1 evaluation on CTCs. A set of melanoma cell surface markers was tested as candidates for targeted melanoma CTC isolation and a melanoma specific immunostaining-based CTC identification protocol combined with PD-L1 detection was established. In vitro testing of the effect of exposure to blood cells on melanoma cell PD-L1 expression was undertaken. Immunomagnetic targeting isolated melanoma CTCs in up to 87.5% of stage IV melanoma patient blood samples and 3 8.6% of these had some PD-L1 expressing CTCs. Our in vitro data demonstrate PD-L1 induction on melanoma cells in the blood.This study established a robust, reliable method to isolate melanoma CTCs and detect expression of PD-L1 on these cells.

Indexed as

Gene Expression Regulation, NeoplasticAgedAged, 80 and overB7-H1 AntigenBiomarkers, TumorCTLA-4 AntigenFemaleHumansImmunomagnetic SeparationImmunophenotypingLung NeoplasmsMaleMelanomaMiddle AgedNeoplasm StagingNeoplastic Cells, CirculatingB7-H1 AntigenBiomarkers, TumorCD274 protein, humanCTLA-4 AntigenCTLA4 protein, humanPDCD1 protein, humanProgrammed Cell Death 1 Receptor

Identifiers

PMID30735560
PMCPMC6368301

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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.