Evidence map›Paper›PMID 33655422›Full record

ArticleClinical & experimental metastasis2021

Type IV collagen as a potential biomarker of metastatic breast cancer.

Moa Lindgren, Malin Jansson, Björn Tavelin, Luc Dirix, Peter Vermeulen, Hanna Nyström

Open access · hybridAbstract read
In one paragraph

Article in Clinical & experimental metastasis, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
2.2field-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

23 citing papers in PubMed, 34 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Review
  5. Article
  6. The Duality of Collagens in Metastases of Solid Tumors.International journal of molecular sciences · 2025
    Review
  7. Collagen IV biosynthesis: Intracellular choreography of post-translational modifications.Matrix biology : journal of the International Society for Matrix Biology · 2025
    Review
  8. Targeting collagen to optimize cancer immunotherapy.Experimental hematology & oncology · 2025
    Review
  9. Article
  10. Review
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Review
  17. Review
  18. Article
  19. Collagen Family as Promising Biomarkers and Therapeutic Targets in Cancer.International journal of molecular sciences · 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

6 authors at 3 institutions in 2 countries.

Moa LindgrenDepartment of Surgery, Department of Surgical and Perioperative Sciences, Umeå University, By 10A, Norrlands Universitetssjukhus, Umeå, 901 85, Sweden.
Malin JanssonDepartment of Surgery, Department of Surgical and Perioperative Sciences, Umeå University, By 10A, Norrlands Universitetssjukhus, Umeå, 901 85, Sweden.
Björn TavelinDepartment of Radiation Sciences, Umeå University, Umeå, Sweden.
Luc DirixTranslational Cancer Research Unit, GZA Hospital Sint Augustinus and Antwerp University, Antwerp, Belgium.
Peter VermeulenTranslational Cancer Research Unit, GZA Hospital Sint Augustinus and Antwerp University, Antwerp, Belgium.
Hanna NyströmDepartment of Surgery, Department of Surgical and Perioperative Sciences, Umeå University, By 10A, Norrlands Universitetssjukhus, Umeå, 901 85, Sweden. hanna.nystrom@umu.se.ORCID 0000-0003-4595-5399
GZA Ziekenhuizen Campus Sint-Augustinus · BEUniversity Hospital of Umeå · SEUmeå University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

No reliable, non-invasive biomarker of metastatic breast cancer (mBC) exists: circulating CA15-3 (cCA15-3) is the marker mostly used to monitor mBC. Circulating collagen IV (cCOLIV) has been evaluated in other metastatic cancers and has been found to be a promising biomarker. The overarching aim of this study was to evaluate cCOLIV as a potential biomarker in patients with mBC. The first aim was to determine the levels of cCOL IV and cCA15-3 in patients with healthy controls, primary breast cancer (pBC) and mBC. The second aim was to compare levels of cCOLIV and cCA15-3 in patients with different metastatic sites of BC. The third aim was to investigate the prognostic value of cCOLIV and cCA15-3 for mBC patients. The fourth aim was to analyse whether a combination of the two biomarkers was more accurate in detecting mBC than a single marker. Lastly, we investigated the tissue expression levels of COLIV in BC bone metastases (BM) and liver metastases (LM). Plasma levels of cCOLIV and cCA15-3 from healthy controls and patients with pBC and mBC were measured. COLIV expression in tissue from patients with LM and BM was analysed using immunohistochemistry. Clinical and survival data were collected from medical charts. The levels of cCOLIV and cCA15-3 were significantly elevated in mBC patients compared with healthy controls and pBC patients. No differences in cCOLIV and cCA15-3 levels were found based on the metastatic site. High levels of cCOLIV, but not cCA15-3, correlated with poorer survival. cCOLIV alone and the combination of cCA15-3 and cCOLIV were superior to cCA15-3 at detecting mBC. COL IV was highly expressed in the tissue of LM and BM. Our study suggests that cCOLIV is a potential marker to monitor patients with BC.

Indexed as

AdultAgedAged, 80 and overBiomarkers, TumorBone NeoplasmsBreast NeoplasmsCollagen Type IVFemaleHumansImmunohistochemistryMiddle AgedMucin-1Biomarkers, TumorCollagen Type IVMUC1 protein, humanMucin-1BiomarkersBreast cancerCA 15-3Collagen IVMetastases

Identifiers

PMID33655422
PMCPMC7987628
OpenAlexW3134999753

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.