Evidence map›Paper›PMID 33176848›Full record

ArticleBreast cancer research : BCR2020

CYP27A1 expression is associated with risk of late lethal estrogen receptor-positive breast cancer in postmenopausal patients.

Siker Kimbung, Maria Inasu, Tor Stålhammar, Björn Nodin, Karin Elebro, Helga Tryggvadottir, Maria Ygland Rödström, Karin Jirström, Karolin Isaksson, Helena Jernström and 1 more

Open access · goldAbstract read
In one paragraph

Article in Breast cancer research : BCR, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.1field-weighted citation impact, top 24% 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

9 citing papers in PubMed, 19 citations in OpenAlex.

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  7. Obesity, Diabetes, and Increased Cancer Progression.Diabetes & metabolism journal · 2021
    Review
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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

11 authors at 2 institutions in 2 countries.

Siker KimbungDepartment of Clinical Sciences Lund, Division of Oncology, Lund University, Barngatan 4, SE-221 85, Lund, Sweden. siker.kimbung@med.lu.se.
Maria InasuDepartment of Clinical Sciences Lund, Division of Oncology, Lund University, Barngatan 4, SE-221 85, Lund, Sweden.
Tor StålhammarDepartment of Clinical Sciences Lund, Division of Oncology, Lund University, Barngatan 4, SE-221 85, Lund, Sweden.
Björn NodinDepartment of Clinical Sciences Lund, Division of Oncology and Therapeutic Pathology, Lund University, Lund, Sweden.
Karin ElebroDepartment of Clinical Sciences Lund, Division of Oncology, Lund University, Barngatan 4, SE-221 85, Lund, Sweden.
Helga TryggvadottirDepartment of Clinical Sciences Lund, Division of Oncology, Lund University, Barngatan 4, SE-221 85, Lund, Sweden.
Maria Ygland RödströmDepartment of Clinical Sciences Lund, Division of Oncology, Lund University, Barngatan 4, SE-221 85, Lund, Sweden.
Karin JirströmDepartment of Clinical Sciences Lund, Division of Oncology and Therapeutic Pathology, Lund University, Lund, Sweden.
Karolin IsakssonDepartment of Clinical Sciences Lund, Division of Surgery, Lund University, Lund, Sweden.
Helena JernströmDepartment of Clinical Sciences Lund, Division of Oncology, Lund University, Barngatan 4, SE-221 85, Lund, Sweden.
Signe BorgquistDepartment of Clinical Sciences Lund, Division of Oncology, Lund University, Barngatan 4, SE-221 85, Lund, Sweden. signe.borgquist@auh.rm.dk.
Lund University · SEAarhus University Hospital · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background27-Hydroxycholesterol (27HC) stimulates estrogen receptor-positive (ER+) breast cancer (BC) progression. Inhibiting the sterol 27-hydroxylase (CYP27A1) abrogates these growth-promoting effects of 27HC in mice. However, the significance of CYP27A1 expression on BC biology and prognosis is unclear.

methodsIntratumoral CYP27A1 expression in invasive BC was measured by immunohistochemistry in two Swedish population-based cohorts (n = 645 and n = 813, respectively). Cox proportional hazards models were used to evaluate the association between CYP27A1 expression and prognosis.

resultsCYP27A1 was highly expressed in less than 1/3 of the tumors. High CYP27A1 expression was more frequent among high-grade tumors lacking hormone receptor expression and with larger tumor sizes. Over a median of 12.2 years follow-up in cohort 1, high CYP27A1 expression was associated with impaired survival, specifically after 5 years from diagnosis among all patients [overall survival (OS), HR

conclusionCYP27A1 demonstrated great potentials as a biomarker of aggressive tumor biology and late lethal disease in postmenopausal patients with ER+ BC. Future studies should investigate if the benefits of prolonged endocrine therapy and cholesterol-lowering medication in BC are modified by CYP27A1 expression.

Indexed as

PostmenopauseAgedAntineoplastic Agents, HormonalBiomarkers, TumorBreastBreast NeoplasmsChemotherapy, AdjuvantCholestanetriol 26-MonooxygenaseDisease-Free SurvivalFemaleFollow-Up StudiesHumansHydroxycholesterolsImmunohistochemistryKaplan-Meier EstimateMastectomy27-hydroxycholesterolAntineoplastic Agents, HormonalBiomarkers, TumorCholestanetriol 26-MonooxygenaseCYP27A1 protein, humanHydroxycholesterolsReceptors, Estrogen27-hydroxycholesterolBreast cancerCholesterolCYP27A1Prognosis

Identifiers

PMID33176848
PMCPMC7656740
OpenAlexW3102885879

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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.