Evidence map›Paper›PMID 34944844›Full record

ArticleCancers2021

Multi-Marker Immunofluorescent Staining and PD-L1 Detection on Circulating Tumour Cells from Ovarian Cancer Patients.

Du-Bois Asante, Michael Morici, Ganendra R K A Mohan, Emmanuel Acheampong, Isaac Spencer, Weitao Lin, Paula van Miert, Samantha Gibson, Aaron B Beasley, Melanie Ziman and 3 more

Open access · goldAbstract 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 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
1.0field-weighted citation impact, top 21% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 19 citations in OpenAlex.

  1. Pooled it
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  8. Review
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  12. Frontiers in cell and developmental biology · 2022
    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

13 authors at 2 institutions in 1 country.

Du-Bois AsanteSchool of Medical and Health Sciences, Edith Cowan University, Perth, WA 6027, Australia.ORCID 0000-0001-5207-5942
Michael MoriciSchool of Medical and Health Sciences, Edith Cowan University, Perth, WA 6027, Australia.
Ganendra R K A MohanHollywood Private Hospital, Perth, WA 6009, Australia.
Emmanuel AcheampongSchool of Medical and Health Sciences, Edith Cowan University, Perth, WA 6027, Australia.ORCID 0000-0002-5338-3258
Isaac SpencerSchool of Medical and Health Sciences, Edith Cowan University, Perth, WA 6027, Australia.
Weitao LinSchool of Medical and Health Sciences, Edith Cowan University, Perth, WA 6027, Australia.ORCID 0000-0003-4385-9897
Paula van MiertSchool of Medical and Health Sciences, Edith Cowan University, Perth, WA 6027, Australia.
Samantha GibsonWestern Oncology, Perth, WA 6008, Australia.
Aaron B BeasleySchool of Medical and Health Sciences, Edith Cowan University, Perth, WA 6027, Australia.
Melanie ZimanSchool of Medical and Health Sciences, Edith Cowan University, Perth, WA 6027, Australia.ORCID 0000-0001-7527-3538
Leslie CalapreSchool of Medical and Health Sciences, Edith Cowan University, Perth, WA 6027, Australia.
Tarek M MeniawySchool of Medical and Health Sciences, Edith Cowan University, Perth, WA 6027, Australia.
Elin S GraySchool of Medical and Health Sciences, Edith Cowan University, Perth, WA 6027, Australia.ORCID 0000-0002-8613-3570
Edith Cowan University · AUHollywood Private Hospital · AU

Funding

Australia New Zealand Gynaecological Oncology Group N/ACancer Council Western Australia N/A
6 · The paper itself

Abstract

Detection of ovarian cancer (OC) circulating tumour cells (CTCs) is primarily based on targeting epithelial markers, thus failing to detect mesenchymal tumour cells. More importantly, the immune checkpoint inhibitor marker PD-L1 has not been demonstrated on CTCs from OC patients. An antibody staining protocol was developed and tested using SKOV-3 and OVCA432 OC cell lines. We targeted epithelial (cytokeratin (CK) and EpCAM), mesenchymal (vimentin), and OC-specific (PAX8) markers for detection of CTCs, and CD45/16 and CD31 were used for the exclusion of white blood and vascular endothelial cells, respectively. PD-L1 was used for CTC characterisation. CTCs were enriched using the Parsortix™ system from 16 OC patients. Results revealed the presence of CTCs in 10 (63%) cases. CTCs were heterogeneous, with 113/157 (72%) cells positive for CK/EpCAM (epithelial marker), 58/157 (37%) positive for vimentin (mesenchymal marker), and 17/157 (11%) for both (hybrid). PAX8 was only found in 11/157 (7%) CTCs. In addition, 62/157 (39%) CTCs were positive for PD-L1. Positivity for PD-L1 was significantly associated with the hybrid phenotype when compared with the epithelial (

Indexed as

circulating tumour cellsCTCepithelialfluorescence quenchingHGSOChigh grade serous ovarian cancerimmunofluorescencemesenchymal

Identifiers

PMID34944844
PMCPMC8699768
OpenAlexW4200214390

What OpenQuestion holds

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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.