Histone-acetyl epigenome regulates TGF-β pathway-associated chemoresistance in colorectal cancer

TGF-β signaling pathway has been demonstrated to be closely related to chemoresistance, which is the major cause of recurrence and poor outcome in colorectal cancer (CRC), however, the comprehensive epigenetic landscape that functionally implicates in the regulation of TGF-β pathway-associated chemo...

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Main Authors: Xianglong Tian, Guihua Liu, Linhua Ji, Yi Shen, Junjun Gu, Lili Wang, Jiali Ma, Zuguang Xia, Xinghua Li
Format: Article
Language:English
Published: Elsevier 2025-01-01
Series:Translational Oncology
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Online Access:http://www.sciencedirect.com/science/article/pii/S1936523324002924
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author Xianglong Tian
Guihua Liu
Linhua Ji
Yi Shen
Junjun Gu
Lili Wang
Jiali Ma
Zuguang Xia
Xinghua Li
author_facet Xianglong Tian
Guihua Liu
Linhua Ji
Yi Shen
Junjun Gu
Lili Wang
Jiali Ma
Zuguang Xia
Xinghua Li
author_sort Xianglong Tian
collection DOAJ
description TGF-β signaling pathway has been demonstrated to be closely related to chemoresistance, which is the major cause of recurrence and poor outcome in colorectal cancer (CRC), however, the comprehensive epigenetic landscape that functionally implicates in the regulation of TGF-β pathway-associated chemoresistance has not yet well established in CRC. In our study, chromatin immunoprecipitation sequencing (ChIP-seq) and Western blot were employed to investigate epigenetic modifications for histones in response to TGF-β1 intervene. We found that the activation of the TGF-β pathway was characterized by genome-wide high levels of H3K9ac and H3K18ac. Mechanistically, the activation of the TGF-β signaling pathway leads to the downregulation of the deacetylase HDAC4, resulting in the upregulation of H3K9ac and H3K18ac. Consequently, this cascade induces oxaliplatin chemoresistance in CRC by triggering the anti-apoptotic PI3K/AKT signaling pathway. Our in vivo experiment results confirmed that overexpression of HDAC4 significantly enhances the sensitivity of CRC to oxaliplatin chemotherapy. Moreover, the expression level of HDAC4 was positively correlated with patients’ prognosis in CRC. Our data suggest that histone-acetyl modification demonstrates a crucial role in modulating TGF-β pathway-associated chemoresistance in CRC, and HDAC4 would be a biomarker for prognostic prediction and potential therapeutic target for treatment in CRC.
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spelling doaj-art-7b5f7c0e3f6e4c7dbb2203c5fbaa4ce32024-12-09T04:27:00ZengElsevierTranslational Oncology1936-52332025-01-0151102166Histone-acetyl epigenome regulates TGF-β pathway-associated chemoresistance in colorectal cancerXianglong Tian0Guihua Liu1Linhua Ji2Yi Shen3Junjun Gu4Lili Wang5Jiali Ma6Zuguang Xia7Xinghua Li8Department of Gastroenterology, Shanghai Eighth People's Hospital, Xuhui Branch of Shanghai Sixth People's Hospital, 20030, China; Corresponding authors.Department of General Practice, Minhang District Hongqiao Community Health Service Center, Shanghai, 201103, ChinaDepartment of Gastrointestinal Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, ChinaDepartment of Gastroenterology, Shanghai Eighth People's Hospital, Xuhui Branch of Shanghai Sixth People's Hospital, 20030, ChinaDepartment of Gastroenterology, Shanghai Eighth People's Hospital, Xuhui Branch of Shanghai Sixth People's Hospital, 20030, ChinaDepartment of Gastroenterology, Shanghai Eighth People's Hospital, Xuhui Branch of Shanghai Sixth People's Hospital, 20030, ChinaDepartment of Gastroenterology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200336, China; Corresponding authors.Department of Medical Oncology, Fudan University Shanghai Cancer Center, Shanghai, 200032, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China; Corresponding authors.Department of Gastroenterology, Shanghai Eighth People's Hospital, Xuhui Branch of Shanghai Sixth People's Hospital, 20030, China; Corresponding authors.TGF-β signaling pathway has been demonstrated to be closely related to chemoresistance, which is the major cause of recurrence and poor outcome in colorectal cancer (CRC), however, the comprehensive epigenetic landscape that functionally implicates in the regulation of TGF-β pathway-associated chemoresistance has not yet well established in CRC. In our study, chromatin immunoprecipitation sequencing (ChIP-seq) and Western blot were employed to investigate epigenetic modifications for histones in response to TGF-β1 intervene. We found that the activation of the TGF-β pathway was characterized by genome-wide high levels of H3K9ac and H3K18ac. Mechanistically, the activation of the TGF-β signaling pathway leads to the downregulation of the deacetylase HDAC4, resulting in the upregulation of H3K9ac and H3K18ac. Consequently, this cascade induces oxaliplatin chemoresistance in CRC by triggering the anti-apoptotic PI3K/AKT signaling pathway. Our in vivo experiment results confirmed that overexpression of HDAC4 significantly enhances the sensitivity of CRC to oxaliplatin chemotherapy. Moreover, the expression level of HDAC4 was positively correlated with patients’ prognosis in CRC. Our data suggest that histone-acetyl modification demonstrates a crucial role in modulating TGF-β pathway-associated chemoresistance in CRC, and HDAC4 would be a biomarker for prognostic prediction and potential therapeutic target for treatment in CRC.http://www.sciencedirect.com/science/article/pii/S1936523324002924Colorectal cancerTGF-β signaling pathwayepigenetic modificationchemoresistanceHDAC4
spellingShingle Xianglong Tian
Guihua Liu
Linhua Ji
Yi Shen
Junjun Gu
Lili Wang
Jiali Ma
Zuguang Xia
Xinghua Li
Histone-acetyl epigenome regulates TGF-β pathway-associated chemoresistance in colorectal cancer
Translational Oncology
Colorectal cancer
TGF-β signaling pathway
epigenetic modification
chemoresistance
HDAC4
title Histone-acetyl epigenome regulates TGF-β pathway-associated chemoresistance in colorectal cancer
title_full Histone-acetyl epigenome regulates TGF-β pathway-associated chemoresistance in colorectal cancer
title_fullStr Histone-acetyl epigenome regulates TGF-β pathway-associated chemoresistance in colorectal cancer
title_full_unstemmed Histone-acetyl epigenome regulates TGF-β pathway-associated chemoresistance in colorectal cancer
title_short Histone-acetyl epigenome regulates TGF-β pathway-associated chemoresistance in colorectal cancer
title_sort histone acetyl epigenome regulates tgf β pathway associated chemoresistance in colorectal cancer
topic Colorectal cancer
TGF-β signaling pathway
epigenetic modification
chemoresistance
HDAC4
url http://www.sciencedirect.com/science/article/pii/S1936523324002924
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