Uncovering the whole genome silencers of human cells via Ss-STARR-seq

Abstract Silencers, the yin to enhancers’ yang, play a pivotal role in fine-tuning gene expression throughout the genome. However, despite their recognized importance, comprehensive identification of these regulatory elements in the genome is still in its early stages. We developed a method called S...

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Main Authors: Xiusheng Zhu, Lei Huang, Chao Wang, Guoli Li, Biao Deng, Dashuai Kong, Xiaoxiao Wang, Rongrong Chang, Yi Gu, Qiuhan Wen, Siyuan Kong, Yuwen Liu, Yubo Zhang
Format: Article
Language:English
Published: Nature Portfolio 2025-01-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-025-55852-8
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author Xiusheng Zhu
Lei Huang
Chao Wang
Guoli Li
Biao Deng
Dashuai Kong
Xiaoxiao Wang
Rongrong Chang
Yi Gu
Qiuhan Wen
Siyuan Kong
Yuwen Liu
Yubo Zhang
author_facet Xiusheng Zhu
Lei Huang
Chao Wang
Guoli Li
Biao Deng
Dashuai Kong
Xiaoxiao Wang
Rongrong Chang
Yi Gu
Qiuhan Wen
Siyuan Kong
Yuwen Liu
Yubo Zhang
author_sort Xiusheng Zhu
collection DOAJ
description Abstract Silencers, the yin to enhancers’ yang, play a pivotal role in fine-tuning gene expression throughout the genome. However, despite their recognized importance, comprehensive identification of these regulatory elements in the genome is still in its early stages. We developed a method called Ss-STARR-seq to directly determine the activity of silencers in the whole genome. In this study, we applied Ss-STARR-seq to human cell lines K562, LNCaP, and 293 T, and identified 134,171, 137,753, and 125,307 silencers on a genome-wide scale, respectively, these silencers function in various cells in a cell-specific manner. Silencers exhibited a substantial enrichment of transcriptional-inhibitory motifs, including REST, and demonstrated overlap with the binding sites of repressor transcription factors within the endogenous environment. Interestingly, H3K27me3 did not reflect silencer activity but facilitated the silencer’s inhibitory role on gene expression. Additionally, the silencer did not have any significant histone markers at the genome-wide level. Our findings unveil that aspect-silencers not only transition into enhancers throughout diverse cell lines but also achieve functional conversion with insulators. Regarding to biological effects, knockout experiments underscored the functional redundancy and specificity of silencers in regulating gene expression and cell proliferation. In summary, this study pioneers the elucidation of the genome-wide silencer landscape in human cells, delineates their global regulatory features, and identifies specific silencers influencing cancer cell proliferation.
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spelling doaj-art-ef866bc8a5c94b74994f673b2a4218c32025-01-19T12:29:46ZengNature PortfolioNature Communications2041-17232025-01-0116111610.1038/s41467-025-55852-8Uncovering the whole genome silencers of human cells via Ss-STARR-seqXiusheng Zhu0Lei Huang1Chao Wang2Guoli Li3Biao Deng4Dashuai Kong5Xiaoxiao Wang6Rongrong Chang7Yi Gu8Qiuhan Wen9Siyuan Kong10Yuwen Liu11Yubo Zhang12Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Livestock and Poultry Multi-omics of MARA, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural SciencesShenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Livestock and Poultry Multi-omics of MARA, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural SciencesShenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Livestock and Poultry Multi-omics of MARA, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural SciencesShenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Livestock and Poultry Multi-omics of MARA, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural SciencesShenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Livestock and Poultry Multi-omics of MARA, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural SciencesShenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Livestock and Poultry Multi-omics of MARA, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural SciencesShenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Livestock and Poultry Multi-omics of MARA, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural SciencesShenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Livestock and Poultry Multi-omics of MARA, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural SciencesShenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Livestock and Poultry Multi-omics of MARA, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural SciencesShenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Livestock and Poultry Multi-omics of MARA, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural SciencesShenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Livestock and Poultry Multi-omics of MARA, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural SciencesShenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Livestock and Poultry Multi-omics of MARA, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural SciencesShenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Livestock and Poultry Multi-omics of MARA, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural SciencesAbstract Silencers, the yin to enhancers’ yang, play a pivotal role in fine-tuning gene expression throughout the genome. However, despite their recognized importance, comprehensive identification of these regulatory elements in the genome is still in its early stages. We developed a method called Ss-STARR-seq to directly determine the activity of silencers in the whole genome. In this study, we applied Ss-STARR-seq to human cell lines K562, LNCaP, and 293 T, and identified 134,171, 137,753, and 125,307 silencers on a genome-wide scale, respectively, these silencers function in various cells in a cell-specific manner. Silencers exhibited a substantial enrichment of transcriptional-inhibitory motifs, including REST, and demonstrated overlap with the binding sites of repressor transcription factors within the endogenous environment. Interestingly, H3K27me3 did not reflect silencer activity but facilitated the silencer’s inhibitory role on gene expression. Additionally, the silencer did not have any significant histone markers at the genome-wide level. Our findings unveil that aspect-silencers not only transition into enhancers throughout diverse cell lines but also achieve functional conversion with insulators. Regarding to biological effects, knockout experiments underscored the functional redundancy and specificity of silencers in regulating gene expression and cell proliferation. In summary, this study pioneers the elucidation of the genome-wide silencer landscape in human cells, delineates their global regulatory features, and identifies specific silencers influencing cancer cell proliferation.https://doi.org/10.1038/s41467-025-55852-8
spellingShingle Xiusheng Zhu
Lei Huang
Chao Wang
Guoli Li
Biao Deng
Dashuai Kong
Xiaoxiao Wang
Rongrong Chang
Yi Gu
Qiuhan Wen
Siyuan Kong
Yuwen Liu
Yubo Zhang
Uncovering the whole genome silencers of human cells via Ss-STARR-seq
Nature Communications
title Uncovering the whole genome silencers of human cells via Ss-STARR-seq
title_full Uncovering the whole genome silencers of human cells via Ss-STARR-seq
title_fullStr Uncovering the whole genome silencers of human cells via Ss-STARR-seq
title_full_unstemmed Uncovering the whole genome silencers of human cells via Ss-STARR-seq
title_short Uncovering the whole genome silencers of human cells via Ss-STARR-seq
title_sort uncovering the whole genome silencers of human cells via ss starr seq
url https://doi.org/10.1038/s41467-025-55852-8
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