Evidence map›Paper›PMID 32345666›Full record

ArticleCancer genomics & proteomics

Tumor microRNAs Identified by Small RNA Sequencing as Potential Response Predictors in Locally Advanced Rectal Cancer Patients Treated With Neoadjuvant Chemoradiotherapy.

Tana Machackova, Karolina Trachtova, Vladimir Prochazka, Tomas Grolich, Martina Farkasova, Lukas Fiala, Roman Sefr, Igor Kiss, Matej Skrovina, Michal Dosoudil and 4 more

Open access · diamondAbstract read
In one paragraph

Article in Cancer genomics & proteomics. 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
1.4field-weighted citation impact, top 16% 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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  6. The Roles of Non-Coding RNAs in Radiotherapy of Gastrointestinal Carcinoma.Frontiers in cell and developmental biology · 2022
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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

14 authors at 6 institutions in 2 countries.

Tana MachackovaCentral European Institute of Technology, Masaryk University, Brno, Czech Republic.
Karolina TrachtovaCentral European Institute of Technology, Masaryk University, Brno, Czech Republic.
Vladimir ProchazkaDepartment of Surgery, Faculty Hospital Brno and Faculty of Medicine, Masaryk University, Brno, Czech Republic.
Tomas GrolichDepartment of Surgery, Faculty Hospital Brno and Faculty of Medicine, Masaryk University, Brno, Czech Republic.
Martina FarkasovaDepartment of Surgery, Faculty Hospital Brno and Faculty of Medicine, Masaryk University, Brno, Czech Republic.
Lukas FialaDepartment of Surgical Oncology, Masaryk Memorial Cancer Institute, Brno, Czech Republic.
Roman SefrDepartment of Surgical Oncology, Masaryk Memorial Cancer Institute, Brno, Czech Republic.
Igor KissDepartment of Comprehensive Cancer Care, Masaryk Memorial Cancer Institute, Brno, Czech Republic.
Matej SkrovinaDepartment of Surgery, Hospital & Oncological Centre Novy Jicin, Novy Jicin, Czech Republic.
Michal DosoudilDepartment of Surgery, Hospital & Oncological Centre Novy Jicin, Novy Jicin, Czech Republic.
Ioana Berindan-NeagoeMEDFUTURE-Research Center for Advanced Medicine, University of Medicine and Pharmacy Iuliu-Hatieganu, Cluj-Napoca, Romania.
Marek SvobodaDepartment of Comprehensive Cancer Care, Masaryk Memorial Cancer Institute, Brno, Czech Republic.
Ondrej SlabyCentral European Institute of Technology, Masaryk University, Brno, Czech Republic Kala.Zdenek@fnbrno.cz on.slaby@gmail.com.
Zdenek KalaDepartment of Surgery, Faculty Hospital Brno and Faculty of Medicine, Masaryk University, Brno, Czech Republic Kala.Zdenek@fnbrno.cz on.slaby@gmail.com.
Masaryk Memorial Cancer Institute · CZMasaryk University · CZCentral European Institute of Technology · CZMuzeum Novojičínska · CZCentral European Institute of Technology – Masaryk University · CZIuliu Hațieganu University of Medicine and Pharmacy · RO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND/

aimRectal cancer accounts for approximately one-third of all colorectal cancers. Currently, the standard treatment for locally advanced rectal cancer (LARC) is neoadjuvant chemoradiotherapy (CRT) with capecitabine or 5-fluorouracil followed by curative surgery. Unfortunately, only 20% of patients with LARC present complete pathological response after CRT, whereas in 20-40% cases the response is poor or absent. The aim of our study was to evaluate whether microRNAs (miRNAs) in tumor biopsy specimen have the potential to predict therapeutic response in LARC patients. PATIENTS AND

methodsIn total 87 LARC patients treated by CRT were enrolled in our prospective study. To identify predictive miRNAs, we used small RNA sequencing in 40 tumor biopsy samples of LARC patients (20 responders, 20 non-responders) and qPCR validation of selected miRNA candidates.

resultsIn the discovery phase of the study, we identified 69 miRNAs to have significantly different expression between the group of responders (TRG 1,2) and a group of non-responders (TRG 4,5) to neoadjuvant CRT. Among these miRNAs, 48 showed a lower expression and 21 showed higher expression in tumor tissues from poorly responding LARC patients. Five miRNAs were selected for validation, but only miR-487a-3p was confirmed to have a significantly higher expression in the tumor biopsy specimens of non-responders to neoadjuvant CRT (p<0.0006, AUC=0.766). Gene Ontology (GO) clustering and pathway enrichment analysis of the miR-487a-3p mRNA targets, revealed potential mechanisms behind miR-487a-3p roles in chemoradioresistance (e.g. TGF-beta signaling pathway, protein kinase activity, double-stranded DNA binding, or microRNAs in cancer).

conclusionBy combination of miRNA expression profiling and integrative computational biology we identified miR-487a-3p as a potential predictive biomarker of CRT response in LARC patients.

Indexed as

AdenocarcinomaAdultAgedAged, 80 and overBiomarkers, TumorChemoradiotherapyFemaleHumansMaleMicroRNAsMiddle AgedNeoadjuvant TherapyProspective StudiesRectal NeoplasmsRNA, Small UntranslatedROC CurveBiomarkers, TumorMicroRNAsMIRN487 microRNA, humanRNA, Small UntranslatedchemoradiotherapymicroRNApredictionRectal cancer

Identifiers

PMID32345666
PMCPMC7259892
OpenAlexW3019986039

What OpenQuestion holds

Textmetadata
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.