Comprehensive characterization of FBXW7 mutational and clinicopathological profiles in human colorectal cancers

BackgroundFBXW7 is recognized as a critical tumor suppressor gene and a component of the ubiquitin-proteasome system, mediating the degradation of multiple oncogenic proteins, including c-MYC, Cyclin E, c-Jun, Notch, p53. Around 16% of colorectal cancer (CRC) patients carried FBXW7 somatic mutations...

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Main Authors: Yiping Liu, Hanlin Chen, Hua Bao, Jinfeng Zhang, Runda Wu, Lingjun Zhu
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-03-01
Series:Frontiers in Oncology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fonc.2023.1154432/full
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author Yiping Liu
Hanlin Chen
Hua Bao
Jinfeng Zhang
Runda Wu
Lingjun Zhu
author_facet Yiping Liu
Hanlin Chen
Hua Bao
Jinfeng Zhang
Runda Wu
Lingjun Zhu
author_sort Yiping Liu
collection DOAJ
description BackgroundFBXW7 is recognized as a critical tumor suppressor gene and a component of the ubiquitin-proteasome system, mediating the degradation of multiple oncogenic proteins, including c-MYC, Cyclin E, c-Jun, Notch, p53. Around 16% of colorectal cancer (CRC) patients carried FBXW7 somatic mutations, while a comprehensive characterization of FBXW7 somatic mutations in CRC is still lacking.MethodsColorectal cancer patients with tumor samples and matching white blood cell samples in the past five years were screened and DNA sequenced. DNA sequencing data of MSK MetTropism cohort and RNA sequencing data of TCGA COAD cohort were analyzed.ResultsWe discovered that the FBXW7 mutations were associated with higher tumor mutation burden (TMB), higher microsatellite instability (MSI) score, and lower chromosomal instability (CIN) score. Patients with FBXW7 mutations showed better overall survival (HR: 0.67; 95%CI: 0.55-0.80, P < 0.001). However, patients with FBXW7 R465C mutation displayed worse overall survival in multi-variate cox analysis when compared with patients carrying other FBXW7 mutations (HR: 1.6; 95%CI: 1.13-3.1, P = 0.015), and with all other patients (HR: 1.87; 95%CI: 0.99-2.5, P = 0.053). Moreover, in MSI patients, the FBXW7 mutated group showed higher M1 macrophage, CD8+ T cell, and regulatory T cell (Tregs) infiltration rates, and significant enrichment of multiple immune-related gene sets, including interferon-gamma response, interferon-alpha response, IL6 JAK STAT3 signaling, p53 pathway.ConclusionThis analysis comprehensively identified FBXW7 alterations in colorectal cancer patients and uncovered the molecular, clinicopathological, and immune-related patterns of FBXW7-altered CRC patients.
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spelling doaj.art-9234dce53ded4bc48253cea0cf787b5b2023-03-29T10:48:03ZengFrontiers Media S.A.Frontiers in Oncology2234-943X2023-03-011310.3389/fonc.2023.11544321154432Comprehensive characterization of FBXW7 mutational and clinicopathological profiles in human colorectal cancersYiping Liu0Hanlin Chen1Hua Bao2Jinfeng Zhang3Runda Wu4Lingjun Zhu5Department of Oncology, Xiangya Hospital, Central South University, Changsha, ChinaGeneseeq Research Institute, Nanjing Geneseeq Technology Inc., Nanjing, ChinaGeneseeq Research Institute, Nanjing Geneseeq Technology Inc., Nanjing, ChinaGeneseeq Research Institute, Nanjing Geneseeq Technology Inc., Nanjing, ChinaDepartment of General Surgery, The First Affiliated Hospital of Soochow University, Suzhou, ChinaDepartment of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, ChinaBackgroundFBXW7 is recognized as a critical tumor suppressor gene and a component of the ubiquitin-proteasome system, mediating the degradation of multiple oncogenic proteins, including c-MYC, Cyclin E, c-Jun, Notch, p53. Around 16% of colorectal cancer (CRC) patients carried FBXW7 somatic mutations, while a comprehensive characterization of FBXW7 somatic mutations in CRC is still lacking.MethodsColorectal cancer patients with tumor samples and matching white blood cell samples in the past five years were screened and DNA sequenced. DNA sequencing data of MSK MetTropism cohort and RNA sequencing data of TCGA COAD cohort were analyzed.ResultsWe discovered that the FBXW7 mutations were associated with higher tumor mutation burden (TMB), higher microsatellite instability (MSI) score, and lower chromosomal instability (CIN) score. Patients with FBXW7 mutations showed better overall survival (HR: 0.67; 95%CI: 0.55-0.80, P < 0.001). However, patients with FBXW7 R465C mutation displayed worse overall survival in multi-variate cox analysis when compared with patients carrying other FBXW7 mutations (HR: 1.6; 95%CI: 1.13-3.1, P = 0.015), and with all other patients (HR: 1.87; 95%CI: 0.99-2.5, P = 0.053). Moreover, in MSI patients, the FBXW7 mutated group showed higher M1 macrophage, CD8+ T cell, and regulatory T cell (Tregs) infiltration rates, and significant enrichment of multiple immune-related gene sets, including interferon-gamma response, interferon-alpha response, IL6 JAK STAT3 signaling, p53 pathway.ConclusionThis analysis comprehensively identified FBXW7 alterations in colorectal cancer patients and uncovered the molecular, clinicopathological, and immune-related patterns of FBXW7-altered CRC patients.https://www.frontiersin.org/articles/10.3389/fonc.2023.1154432/fullFbxw7colorectal cancernext generation sequencing - NGSbiomarkerGSEA analysis
spellingShingle Yiping Liu
Hanlin Chen
Hua Bao
Jinfeng Zhang
Runda Wu
Lingjun Zhu
Comprehensive characterization of FBXW7 mutational and clinicopathological profiles in human colorectal cancers
Frontiers in Oncology
Fbxw7
colorectal cancer
next generation sequencing - NGS
biomarker
GSEA analysis
title Comprehensive characterization of FBXW7 mutational and clinicopathological profiles in human colorectal cancers
title_full Comprehensive characterization of FBXW7 mutational and clinicopathological profiles in human colorectal cancers
title_fullStr Comprehensive characterization of FBXW7 mutational and clinicopathological profiles in human colorectal cancers
title_full_unstemmed Comprehensive characterization of FBXW7 mutational and clinicopathological profiles in human colorectal cancers
title_short Comprehensive characterization of FBXW7 mutational and clinicopathological profiles in human colorectal cancers
title_sort comprehensive characterization of fbxw7 mutational and clinicopathological profiles in human colorectal cancers
topic Fbxw7
colorectal cancer
next generation sequencing - NGS
biomarker
GSEA analysis
url https://www.frontiersin.org/articles/10.3389/fonc.2023.1154432/full
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