Evidence map›Paper›PMID 42063709›Full record

ArticleFrontiers in oncology2026

Metastatic adenocarcinomas of left colon and rectum: differences in clinical outcome and gene expression.

N N Semenov, L G Zhukova, V A Yakovlev

Abstract read
In one paragraph

Article in Frontiers in oncology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing papers in PubMed
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1 · What the graph read from it

What it found

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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

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3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

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5 · Who and what money

Authors and funding

3 authors.

N N SemenovState Budgetary Institution of Healthcare (SBIH) A.S. Loginov Moscow Clinical Scientific and Practical Center of the Department of Healthcare of the City of Moscow, Moscow, Russia.
L G ZhukovaState Budgetary Institution of Healthcare (SBIH) A.S. Loginov Moscow Clinical Scientific and Practical Center of the Department of Healthcare of the City of Moscow, Moscow, Russia.
V A YakovlevMassey Comprehensive Cancer Center, Virginia Commonwealth University (VCU) School of Medicine, Richmond, VA, United States.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: There are relatively well-substantiated concepts regarding the differences in the clinical course of metastatic colorectal cancer depending on the primary tumor localization: right- and left-sided (including rectal). However, many clinical trials demonstrate clear differences in the selected efficacy of adjuvant chemotherapy in the treatment of rectal versus colon cancer. We hypothesize that there are significant differences in long-term outcomes between patients with metastatic rectal cancer (RC) and those with left-sided colon cancer (LSCC) that may depend on the genetic profile of the primary tumor. Methods: 155 patients with synchronous metastases of LSCC and 96 patients with RC were selected for clinical analysis. The TCGA database was used to obtain information on mRNA expression from the "Comprehensive molecular characterization of human colon and rectal cancer" study. 153 patients with LSCC and 41 patients with RC were included in this analysis. Results: Clinical analysis characterized by a significantly more favorable course of the disease after I and I+II lines of chemotherapy for RC group, which may be associated with a higher expression of EBI3, IL-17A, and SOCS1 in the primary tumor. Also, the RC group is characterized by a higher sensitivity to anti-VEGF therapy, which can be explained by a higher expression of VEGF-A, VEGF-D, and KDR-VEGFR2 compared to the LSCC group. Conclusion: Our study shows that when analyzing the effectiveness of antitumor therapy in patients with colorectal cancer, it is necessary to distinguish not only between groups with cancer of the right and left colon, but also to consider rectal cancer as a third independent group.

Indexed as

anti-VEGF therapychemotherapygene expressionleft-sided colon cancer (LSCC)metastatic colorectal cancer (mCRC)rectal cancer (RC)TCGA database

Identifiers

PMID42063709
PMCPMC13124476

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