An oncogene regulating chromatin favors response to immunotherapy<subtitle>Oncogene CHAF1A and immunotherapy outcomes</subtitle>

Many biological processes related to cell function and fate begin with chromatin alterations, and many factors associated with the efficacy of immune checkpoint inhibitors (ICIs) are actually downstream events of chromatin alterations, such as genome changes, neoantigen production, and immune checkp...

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Main Authors: Leqian Ying, Zhangmin Hu, Yi Lu, Qing Tao, Fen Xiong, Yongqian Shu, Yufei Yang, Xuehan Qiao, Chen Peng, Yuchun Jiang, Miao Han, Min Xu, Xiaoqin Li, Deqiang Wang
Format: Article
Language:English
Published: Taylor & Francis Group 2024-12-01
Series:OncoImmunology
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Online Access:https://www.tandfonline.com/doi/10.1080/2162402X.2024.2303195
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author Leqian Ying
Zhangmin Hu
Yi Lu
Qing Tao
Fen Xiong
Yongqian Shu
Yufei Yang
Xuehan Qiao
Chen Peng
Yuchun Jiang
Miao Han
Min Xu
Xiaoqin Li
Deqiang Wang
author_facet Leqian Ying
Zhangmin Hu
Yi Lu
Qing Tao
Fen Xiong
Yongqian Shu
Yufei Yang
Xuehan Qiao
Chen Peng
Yuchun Jiang
Miao Han
Min Xu
Xiaoqin Li
Deqiang Wang
author_sort Leqian Ying
collection DOAJ
description Many biological processes related to cell function and fate begin with chromatin alterations, and many factors associated with the efficacy of immune checkpoint inhibitors (ICIs) are actually downstream events of chromatin alterations, such as genome changes, neoantigen production, and immune checkpoint expression. However, the influence of genes as chromatin regulators on the efficacy of ICIs remains elusive, especially in gastric cancer (GC). In this study, thirty out of 1593 genes regulating chromatin associated with a favorable prognosis were selected for GC. CHAF1A, a well-defined oncogene, was identified as the highest linkage hub gene. High CHAF1A expression were associated with microsatellite instability (MSI), high tumor mutation burden (TMB), high tumor neoantigen burden (TNB), high expressions of PD-L1 and immune effector genes, and live infiltration of immune cells. High CHAF1A expression indicated a favorable response and prognosis in immunotherapy of several cohorts, which was independent of MSI, TMB, TNB, PD-L1 expression, immune phenotype and transcriptome scoring, and improved patient selection based on these classic biomarkers. In vivo, CHAF1A knockdown alone inhibited tumor growth but it impaired the effect of an anti-PD-1 antibody by increasing the relative tumor proliferation rate and decreasing the survival benefit, potentially through the activation of TGF-β signaling. In conclusion, CHAF1A may be a novel biomarker for improving patient selection in immunotherapy.
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spelling doaj-art-02e0a98dc2074dc6b0eb068f73333cfd2024-12-03T13:49:34ZengTaylor & Francis GroupOncoImmunology2162-402X2024-12-0113110.1080/2162402X.2024.2303195An oncogene regulating chromatin favors response to immunotherapy<subtitle>Oncogene CHAF1A and immunotherapy outcomes</subtitle>Leqian Ying0Zhangmin Hu1Yi Lu2Qing Tao3Fen Xiong4Yongqian Shu5Yufei Yang6Xuehan Qiao7Chen Peng8Yuchun Jiang9Miao Han10Min Xu11Xiaoqin Li12Deqiang Wang13Department of Oncology, Digestive Disease Institute&amp;Cancer Institute of Jiangsu University, Affiliated Hospital of Jiangsu University, Zhenjiang, ChinaDepartment of Oncology, Digestive Disease Institute&amp;Cancer Institute of Jiangsu University, Affiliated Hospital of Jiangsu University, Zhenjiang, ChinaDepartment of Oncology, Wujin Hospital Affiliated with Jiangsu University, Changzhou, ChinaDepartment of Oncology, Digestive Disease Institute&amp;Cancer Institute of Jiangsu University, Affiliated Hospital of Jiangsu University, Zhenjiang, ChinaDepartment of Oncology, Digestive Disease Institute&amp;Cancer Institute of Jiangsu University, Affiliated Hospital of Jiangsu University, Zhenjiang, ChinaDepartment of Oncology, Jiangsu Province Hospital &amp; The First Affiliated Hospital of Nanjing Medical University, Nanjing, ChinaDepartment of Oncology, Digestive Disease Institute&amp;Cancer Institute of Jiangsu University, Affiliated Hospital of Jiangsu University, Zhenjiang, ChinaDepartment of Oncology, Digestive Disease Institute&amp;Cancer Institute of Jiangsu University, Affiliated Hospital of Jiangsu University, Zhenjiang, ChinaDepartment of Oncology, Digestive Disease Institute&amp;Cancer Institute of Jiangsu University, Affiliated Hospital of Jiangsu University, Zhenjiang, ChinaDepartment of Oncology, Digestive Disease Institute&amp;Cancer Institute of Jiangsu University, Affiliated Hospital of Jiangsu University, Zhenjiang, ChinaDepartment of Oncology, Digestive Disease Institute&amp;Cancer Institute of Jiangsu University, Affiliated Hospital of Jiangsu University, Zhenjiang, ChinaDepartment of Gastroenterology, Digestive Disease Institute of Jiangsu University, Affiliated Hospital of Jiangsu University, Zhenjiang, ChinaDepartment of Oncology, Digestive Disease Institute&amp;Cancer Institute of Jiangsu University, Affiliated Hospital of Jiangsu University, Zhenjiang, ChinaDepartment of Oncology, Digestive Disease Institute&amp;Cancer Institute of Jiangsu University, Affiliated Hospital of Jiangsu University, Zhenjiang, ChinaMany biological processes related to cell function and fate begin with chromatin alterations, and many factors associated with the efficacy of immune checkpoint inhibitors (ICIs) are actually downstream events of chromatin alterations, such as genome changes, neoantigen production, and immune checkpoint expression. However, the influence of genes as chromatin regulators on the efficacy of ICIs remains elusive, especially in gastric cancer (GC). In this study, thirty out of 1593 genes regulating chromatin associated with a favorable prognosis were selected for GC. CHAF1A, a well-defined oncogene, was identified as the highest linkage hub gene. High CHAF1A expression were associated with microsatellite instability (MSI), high tumor mutation burden (TMB), high tumor neoantigen burden (TNB), high expressions of PD-L1 and immune effector genes, and live infiltration of immune cells. High CHAF1A expression indicated a favorable response and prognosis in immunotherapy of several cohorts, which was independent of MSI, TMB, TNB, PD-L1 expression, immune phenotype and transcriptome scoring, and improved patient selection based on these classic biomarkers. In vivo, CHAF1A knockdown alone inhibited tumor growth but it impaired the effect of an anti-PD-1 antibody by increasing the relative tumor proliferation rate and decreasing the survival benefit, potentially through the activation of TGF-β signaling. In conclusion, CHAF1A may be a novel biomarker for improving patient selection in immunotherapy.https://www.tandfonline.com/doi/10.1080/2162402X.2024.2303195CancerCHAF1Aimmune checkpointimmunotherapyoncogene
spellingShingle Leqian Ying
Zhangmin Hu
Yi Lu
Qing Tao
Fen Xiong
Yongqian Shu
Yufei Yang
Xuehan Qiao
Chen Peng
Yuchun Jiang
Miao Han
Min Xu
Xiaoqin Li
Deqiang Wang
An oncogene regulating chromatin favors response to immunotherapy<subtitle>Oncogene CHAF1A and immunotherapy outcomes</subtitle>
OncoImmunology
Cancer
CHAF1A
immune checkpoint
immunotherapy
oncogene
title An oncogene regulating chromatin favors response to immunotherapy<subtitle>Oncogene CHAF1A and immunotherapy outcomes</subtitle>
title_full An oncogene regulating chromatin favors response to immunotherapy<subtitle>Oncogene CHAF1A and immunotherapy outcomes</subtitle>
title_fullStr An oncogene regulating chromatin favors response to immunotherapy<subtitle>Oncogene CHAF1A and immunotherapy outcomes</subtitle>
title_full_unstemmed An oncogene regulating chromatin favors response to immunotherapy<subtitle>Oncogene CHAF1A and immunotherapy outcomes</subtitle>
title_short An oncogene regulating chromatin favors response to immunotherapy<subtitle>Oncogene CHAF1A and immunotherapy outcomes</subtitle>
title_sort oncogene regulating chromatin favors response to immunotherapy subtitle oncogene chaf1a and immunotherapy outcomes subtitle
topic Cancer
CHAF1A
immune checkpoint
immunotherapy
oncogene
url https://www.tandfonline.com/doi/10.1080/2162402X.2024.2303195
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