Evidence map›Paper›PMID 31819162›Full record

ReviewThe pharmacogenomics journal2020

Mucinous adenocarcinoma is a pharmacogenomically distinct subtype of colorectal cancer.

Ian S Reynolds, Emer O'Connell, Michael Fichtner, Deborah A McNamara, Elaine W Kay, Jochen H M Prehn, Simon J Furney, John P Burke

Abstract readReview
PubMed Publisher
In one paragraph

Review in The pharmacogenomics journal, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 1 pooled it
2.1field-weighted citation impact, top 11% 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

27 citing papers in PubMed, 1 synthesis or guideline pooled it, 41 citations in OpenAlex.

  1. Pooled it
  2. Rethinking mucinous colorectal adenocarcinoma classification: evidence from histopathology and RAS mutations.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2026
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  12. Adjuvant Radiotherapy Is Not Necessary for Stage III Mucinous Rectal Cancer: Evidence Based on Long Survival Analysis from SEER Data.Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract · 2023
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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

8 authors at 2 institutions in 1 country.

Ian S ReynoldsDepartment of Colorectal Surgery, Beaumont Hospital, Dublin 9, Ireland.ORCID http://orcid.org/0000-0002-8790-2538
Emer O'ConnellDepartment of Colorectal Surgery, Beaumont Hospital, Dublin 9, Ireland.
Michael FichtnerDepartment of Physiology & Medical Physics, Royal College of Surgeons in Ireland, Dublin 2, Ireland.
Deborah A McNamaraDepartment of Colorectal Surgery, Beaumont Hospital, Dublin 9, Ireland.
Elaine W KayDepartment of Pathology, Beaumont Hospital, Dublin 9, Ireland.
Jochen H M PrehnDepartment of Physiology & Medical Physics, Royal College of Surgeons in Ireland, Dublin 2, Ireland.
Simon J FurneyDepartment of Physiology & Medical Physics, Royal College of Surgeons in Ireland, Dublin 2, Ireland. simonfurney@rcsi.ie.ORCID http://orcid.org/0000-0002-8920-6800
John P BurkeDepartment of Colorectal Surgery, Beaumont Hospital, Dublin 9, Ireland. johnburke@rcsi.ie.
Royal College of Surgeons in Ireland · IEBeaumont Hospital · IE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Mucinous colorectal cancer is a unique histological subtype that is known to respond poorly to cytotoxic chemotherapy and radiotherapy. There are a number of genes known to be associated with resistance to 5-fluorouracil (5-FU), oxaliplatin, and irinotecan. The aim of this study was to compare the somatic mutation frequency and copy number variation (CNV) in these genes between mucinous and non-mucinous colorectal cancer. A systematic search of PubMed was performed to identify papers investigating drug resistance in colorectal cancer. From this review, a list of 26 drug-resistance-associated genes was compiled. Using patient data from The Cancer Genome Atlas (TCGA), the somatic mutation rate and CNV was compared between patients with mucinous and non-mucinous colorectal cancer. Statistical analysis was carried out using GraphPad PRISM® version 5.00. Data were available on 531 patients (464 non-mucinous, 67 mucinous). A statistically significant difference in the somatic mutation rate between the two cohorts was identified in the TYMP (p = 0.0179), ATP7B (p = 0.0465), SRPK1 (p = 0.0135), ABCB1 (p = 0.0423), and ABCG2 (p = 0.0102) genes. A statistically significant difference in CNV was identified between the two cohorts in the GSTP1 (p = 0.0405), CCS (p = 0.0063), and TOP1 (p = 0.0048) genes. Differences in somatic mutation rate and CNV in genes associated with resistance to 5-FU, oxaliplatin, and irinotecan may partly account for the pattern of resistance observed in mucinous colorectal cancers. These genetic alterations may prove useful when deciding on a personalized approach to chemotherapy and may also represent potential therapeutic targets going forward.

Indexed as

Adenocarcinoma, MucinousAntineoplastic Combined Chemotherapy ProtocolsColorectal NeoplasmsDrug Resistance, NeoplasmHumansMutationPharmacogenetics

Identifiers

PMID31819162
OpenAlexW2993131265

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.