Evidence map›Paper›PMID 34504224›Full record

ArticleScientific reports2021

Cytokeratin 7 expression as a predictor of an unfavorable prognosis in colorectal carcinoma.

Jan Hrudka, Hana Fišerová, Karolína Jelínková, Radoslav Matěj, Petr Waldauf

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
2.9field-weighted citation impact, top 9% 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

20 citing papers in PubMed, 1 synthesis or guideline pooled it, 25 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Oral Microbiota-Driven Cell Migration in Carcinogenesis and Metastasis.Frontiers in cellular and infection microbiology · 2022
    Review
  20. Article
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 1 institution in 1 country.

Jan HrudkaDepartment of Pathology, 3rd Faculty of Medicine, Charles University, University Hospital Kralovske Vinohrady, Ruská 87, 100 00, Praha 10, Prague, Czech Republic. jan.hrudka@lf3.cuni.cz.ORCID 0000-0002-5649-4586
Hana FišerováDepartment of Pathology, 3rd Faculty of Medicine, Charles University, University Hospital Kralovske Vinohrady, Ruská 87, 100 00, Praha 10, Prague, Czech Republic.
Karolína JelínkováDepartment of Pathology, 3rd Faculty of Medicine, Charles University, University Hospital Kralovske Vinohrady, Ruská 87, 100 00, Praha 10, Prague, Czech Republic.
Radoslav MatějDepartment of Pathology, 3rd Faculty of Medicine, Charles University, University Hospital Kralovske Vinohrady, Ruská 87, 100 00, Praha 10, Prague, Czech Republic.ORCID 0000-0002-6152-6343
Petr WaldaufDepartment of Anaesthesia and Intensive Care Medicine, 3rd Faculty of Medicine, Charles University, University Hospital Kralovske Vinohrady, Prague, Czech Republic.ORCID 0000-0003-4668-5837
Charles University · CZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Colorectal carcinoma (CRC) is associated with significant morbidity and mortality worldwide. Cytokeratins (CKs) are widely expressed in various types of carcinomas, whereas in CRC it is usually CK7 - and CK20 + . A subset of CRCs is CK7 + . This study aims to determine the prevalence of CK7 expression in CRC and its impact on overall survival. We analyzed 300 randomly selected surgically treated CRC cases using paraffin embedded tumor tissue samples and evaluated CK7 and CK20 expression using the tissue microarray method. Tumors with positivity > 10% and > 25% of tumor cells were considered CK7 and CK20 positive, respectively. Expression of both CKs and several clinical-pathological variables (stage, grade, laterality, mismatch-repair/MMR status) were evaluated using patient follow up data (Kaplan-Meier analysis of cancer-specific survival (CSS)). Significant results include shorter CSS (restricted mean 4.98 vs. 7.74 years, P = 0.007) and 5-year survival (29.4% vs. 64.6%, P = 0.0221) in CK7 + tumors compared to CK7 - tumors, respectively; without significant association with grade, stage or right-sided location. These results were significant in a multivariate analysis. CK20 + tumors are more frequently MMR-proficient and left-sided. MMR-deficient tumors are more frequently right-sided and had longer survival. CK7 expression, right-sided location (rmean CSS 6.83 vs. 8.0 years, P = 0.043), MMR-proficiency (rmean CSS 7.41 vs. 9.32 years, P = 0.012), and UICC stages III + IV (rmean CSS 6.03 vs. 8.92 years, P < 0.001) of the tumor correlated with negative prognostic outcomes, whereas the most significant results concern stage and CK7 positivity. The result concerning negative prognostic role of CK7 differs from those obtained by several previous studies focused on this topic.

Indexed as

AdenocarcinomaAdultAgedAged, 80 and overBiomarkers, TumorColorectal NeoplasmsDiagnosis, DifferentialFemaleHumansIntermediate Filament ProteinsKeratin-7KeratinsMaleMiddle AgedPrognosisBiomarkers, TumorIntermediate Filament ProteinsKeratin-7KeratinsKRT7 protein, human

Identifiers

PMID34504224
PMCPMC8429687
OpenAlexW3159225828

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.