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Exploration of predictive biomarkers for postoperative recurrence of stage II/III colorectal cancer using genomic sequencing

Postoperative recurrence of colorectal cancer (CRC) eventually leads to therapeutic failure; therefore, treatment strategies based on accurate prediction of recurrence are urgently required. To identify biomarkers that can predict treatment outcomes, we compared the mutational profiles of surgically...

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Published in:Cancer medicine (Malden, MA) MA), 2022-09, Vol.11 (18), p.3457-3470
Main Authors: Kishigami, Fumishi, Tanaka, Yosuke, Yamamoto, Yoko, Ueno, Toshihide, Kojima, Shinya, Sato, Kazuhito, Inoue, Satoshi, Sugaya, Saori, Ishihara, Soichiro, Mano, Hiroyuki, Kawazu, Masahito
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creator Kishigami, Fumishi
Tanaka, Yosuke
Yamamoto, Yoko
Ueno, Toshihide
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Sato, Kazuhito
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Sugaya, Saori
Ishihara, Soichiro
Mano, Hiroyuki
Kawazu, Masahito
description Postoperative recurrence of colorectal cancer (CRC) eventually leads to therapeutic failure; therefore, treatment strategies based on accurate prediction of recurrence are urgently required. To identify biomarkers that can predict treatment outcomes, we compared the mutational profiles of surgically resected specimens from patients with recurrent cancer with those from patients with non‐recurrent cancer. Target sequencing, whole‐exome sequencing (WES), or whole‐genome sequencing (WGS) was performed on 89 and 58 tumors from recurrent and non‐recurrent cases, respectively. WGS revealed the driver mutations that were not detected with target sequencing or WES, including the structural variations affecting ZFP36L2. Loss of function of ZFP36L2 was frequently observed in primary tumors from recurrent cases. Furthermore, the recurrence‐free survival of patients with loss of function of ZFP36L2 was significantly shorter relative to patients with no loss of ZFP36L2 function. In summary, the study demonstrated that detailed genomic analysis could help improve precision medicine for CRC. Loss of function of ZFP36L2 was frequently observed in recurrent colorectal cancers. Furthermore, the recurrence‐free survival of colorectal cancer patients with loss of function of ZFP36L2 was significantly shorter relative to patients with no loss of ZFP36L2 function.
doi_str_mv 10.1002/cam4.4710
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subjects Antigens
Automation
Biomarkers
Cancer
Chemotherapy
Cloning
Colorectal cancer
Colorectal carcinoma
Genes
Genomes
Genomic analysis
Mutation
Patients
Precision medicine
Survival analysis
Tumors
whole genome sequence
ZFP36L2
title Exploration of predictive biomarkers for postoperative recurrence of stage II/III colorectal cancer using genomic sequencing
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