LINC01235 Promotes Clonal Evolution through DNA Replication Licensing‐Induced Chromosomal Instability in Breast Cancer

Abstract Despite the development of HER2‐targeting drugs such as trastuzumab and T‐DXd, treatment resistance is a substantial challenge, often leading to relapse and distant metastasis. Tumor heterogeneity in HER2‐positive breast cancer drives the evolution of resistant clones following therapeutic...

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Main Authors: Qi Zhang, Xuliren Wang, Zhibo Shao, Yi Zhang, Liyi Zhang, Ming Chen, Xujie Zhou, Han Zhu, Yue Zhou, Xinya Lu, Pei Li, Weiru Chi, Lun Li, Zhi‐Ming Shao, Shenglin Huang, Jingyan Xue, Yayun Chi, Jiong Wu, Bingqiu Xiu
Format: Article
Language:English
Published: Wiley 2025-04-01
Series:Advanced Science
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Online Access:https://doi.org/10.1002/advs.202413527
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author Qi Zhang
Xuliren Wang
Zhibo Shao
Yi Zhang
Liyi Zhang
Ming Chen
Xujie Zhou
Han Zhu
Yue Zhou
Xinya Lu
Pei Li
Weiru Chi
Lun Li
Zhi‐Ming Shao
Shenglin Huang
Jingyan Xue
Yayun Chi
Jiong Wu
Bingqiu Xiu
author_facet Qi Zhang
Xuliren Wang
Zhibo Shao
Yi Zhang
Liyi Zhang
Ming Chen
Xujie Zhou
Han Zhu
Yue Zhou
Xinya Lu
Pei Li
Weiru Chi
Lun Li
Zhi‐Ming Shao
Shenglin Huang
Jingyan Xue
Yayun Chi
Jiong Wu
Bingqiu Xiu
author_sort Qi Zhang
collection DOAJ
description Abstract Despite the development of HER2‐targeting drugs such as trastuzumab and T‐DXd, treatment resistance is a substantial challenge, often leading to relapse and distant metastasis. Tumor heterogeneity in HER2‐positive breast cancer drives the evolution of resistant clones following therapeutic stress. However, the targetable drivers of anti‐HER2 treatment resistance are not thoroughly identified. This study aims to use neoadjuvant‐targeted therapy cohorts and a patient‐derived organoid in vitro treatment model to uncover the potential targetable drivers of anti‐HER2 treatment resistance. it is found that LINC01235 significantly enhances DNA replication licensing and chromosomal instability, fostering clonal expansion and evolution, and ultimately increasing resistance to therapeutic interventions. LINC01235 regulates global H3K27ac, H3K9ac, and H3K36me3 modifications, promotes H2A.Z expression in regulatory regions, and increases the accessibility of DNA licensing factors to their promoter regions. XRCC5 is identified as a key component for maintaining genomic stability, crucial for LINC01235's role in replication licensing. Furthermore, therapeutic strategies targeting LINC01235, including the use of antisense oligonucleotides or ATR inhibitors, which showed promise in overcoming treatment resistance are explored. These findings underscore the pivotal role of LINC01235 in driving resistance mechanisms and highlight novel avenues for targeted therapies to improve the outcomes of patients with HER2‐positive breast cancer.
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spelling doaj-art-436e5de9a15442e5bd6b4dd7984efc5f2025-08-20T03:09:08ZengWileyAdvanced Science2198-38442025-04-011214n/an/a10.1002/advs.202413527LINC01235 Promotes Clonal Evolution through DNA Replication Licensing‐Induced Chromosomal Instability in Breast CancerQi Zhang0Xuliren Wang1Zhibo Shao2Yi Zhang3Liyi Zhang4Ming Chen5Xujie Zhou6Han Zhu7Yue Zhou8Xinya Lu9Pei Li10Weiru Chi11Lun Li12Zhi‐Ming Shao13Shenglin Huang14Jingyan Xue15Yayun Chi16Jiong Wu17Bingqiu Xiu18Department of Breast Surgery Key Laboratory of Breast Cancer in Shanghai Fudan University Shanghai Cancer Center Shanghai 200032 ChinaDepartment of Breast Surgery Key Laboratory of Breast Cancer in Shanghai Fudan University Shanghai Cancer Center Shanghai 200032 ChinaDepartment of Breast Surgery Key Laboratory of Breast Cancer in Shanghai Fudan University Shanghai Cancer Center Shanghai 200032 ChinaDepartment of Breast Surgery Key Laboratory of Breast Cancer in Shanghai Fudan University Shanghai Cancer Center Shanghai 200032 ChinaDepartment of Breast Surgery Key Laboratory of Breast Cancer in Shanghai Fudan University Shanghai Cancer Center Shanghai 200032 ChinaDepartment of Breast Surgery Key Laboratory of Breast Cancer in Shanghai Fudan University Shanghai Cancer Center Shanghai 200032 ChinaDepartment of Breast Surgery Key Laboratory of Breast Cancer in Shanghai Fudan University Shanghai Cancer Center Shanghai 200032 ChinaDepartment of Breast Surgery Key Laboratory of Breast Cancer in Shanghai Fudan University Shanghai Cancer Center Shanghai 200032 ChinaDepartment of Breast Surgery Key Laboratory of Breast Cancer in Shanghai Fudan University Shanghai Cancer Center Shanghai 200032 ChinaDepartment of Breast Surgery Key Laboratory of Breast Cancer in Shanghai Fudan University Shanghai Cancer Center Shanghai 200032 ChinaDepartment of Breast Surgery Key Laboratory of Breast Cancer in Shanghai Fudan University Shanghai Cancer Center Shanghai 200032 ChinaDepartment of Breast Surgery Key Laboratory of Breast Cancer in Shanghai Fudan University Shanghai Cancer Center Shanghai 200032 ChinaDepartment of Breast Surgery Key Laboratory of Breast Cancer in Shanghai Fudan University Shanghai Cancer Center Shanghai 200032 ChinaDepartment of Breast Surgery Key Laboratory of Breast Cancer in Shanghai Fudan University Shanghai Cancer Center Shanghai 200032 ChinaFudan University Shanghai Cancer Center Key Laboratory of Medical Epigenetics and Metabolism Institutes of Biomedical Sciences Fudan University Shanghai 200032 ChinaDepartment of Breast Surgery Key Laboratory of Breast Cancer in Shanghai Fudan University Shanghai Cancer Center Shanghai 200032 ChinaDepartment of Breast Surgery Key Laboratory of Breast Cancer in Shanghai Fudan University Shanghai Cancer Center Shanghai 200032 ChinaDepartment of Breast Surgery Key Laboratory of Breast Cancer in Shanghai Fudan University Shanghai Cancer Center Shanghai 200032 ChinaDepartment of Breast Surgery Key Laboratory of Breast Cancer in Shanghai Fudan University Shanghai Cancer Center Shanghai 200032 ChinaAbstract Despite the development of HER2‐targeting drugs such as trastuzumab and T‐DXd, treatment resistance is a substantial challenge, often leading to relapse and distant metastasis. Tumor heterogeneity in HER2‐positive breast cancer drives the evolution of resistant clones following therapeutic stress. However, the targetable drivers of anti‐HER2 treatment resistance are not thoroughly identified. This study aims to use neoadjuvant‐targeted therapy cohorts and a patient‐derived organoid in vitro treatment model to uncover the potential targetable drivers of anti‐HER2 treatment resistance. it is found that LINC01235 significantly enhances DNA replication licensing and chromosomal instability, fostering clonal expansion and evolution, and ultimately increasing resistance to therapeutic interventions. LINC01235 regulates global H3K27ac, H3K9ac, and H3K36me3 modifications, promotes H2A.Z expression in regulatory regions, and increases the accessibility of DNA licensing factors to their promoter regions. XRCC5 is identified as a key component for maintaining genomic stability, crucial for LINC01235's role in replication licensing. Furthermore, therapeutic strategies targeting LINC01235, including the use of antisense oligonucleotides or ATR inhibitors, which showed promise in overcoming treatment resistance are explored. These findings underscore the pivotal role of LINC01235 in driving resistance mechanisms and highlight novel avenues for targeted therapies to improve the outcomes of patients with HER2‐positive breast cancer.https://doi.org/10.1002/advs.202413527ATR inhibitorschromosomal instabilitiesDNA replication licensingHER2‐positive breast cancersLINC01235
spellingShingle Qi Zhang
Xuliren Wang
Zhibo Shao
Yi Zhang
Liyi Zhang
Ming Chen
Xujie Zhou
Han Zhu
Yue Zhou
Xinya Lu
Pei Li
Weiru Chi
Lun Li
Zhi‐Ming Shao
Shenglin Huang
Jingyan Xue
Yayun Chi
Jiong Wu
Bingqiu Xiu
LINC01235 Promotes Clonal Evolution through DNA Replication Licensing‐Induced Chromosomal Instability in Breast Cancer
Advanced Science
ATR inhibitors
chromosomal instabilities
DNA replication licensing
HER2‐positive breast cancers
LINC01235
title LINC01235 Promotes Clonal Evolution through DNA Replication Licensing‐Induced Chromosomal Instability in Breast Cancer
title_full LINC01235 Promotes Clonal Evolution through DNA Replication Licensing‐Induced Chromosomal Instability in Breast Cancer
title_fullStr LINC01235 Promotes Clonal Evolution through DNA Replication Licensing‐Induced Chromosomal Instability in Breast Cancer
title_full_unstemmed LINC01235 Promotes Clonal Evolution through DNA Replication Licensing‐Induced Chromosomal Instability in Breast Cancer
title_short LINC01235 Promotes Clonal Evolution through DNA Replication Licensing‐Induced Chromosomal Instability in Breast Cancer
title_sort linc01235 promotes clonal evolution through dna replication licensing induced chromosomal instability in breast cancer
topic ATR inhibitors
chromosomal instabilities
DNA replication licensing
HER2‐positive breast cancers
LINC01235
url https://doi.org/10.1002/advs.202413527
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