Peiran Su, Yin Liu, Tianyi Chen, Yibo Xue, Yong Zeng, Guanghui Zhu, Sujun Chen, Mona Teng, Xinpei Ci, Mengdi Guo, Michael Y. He, Jun Hao, Vivian Chu, Wenxi Xu, Shiyan Wang, Parinaz Mehdipour, Xin Xu, Sajid A. Marhon, Fraser Soares, Nhu-An Pham, Bell Xi Wu, Peter Hyunwuk Her, Shengrui Feng, Najd Alshamlan, Maryam Khalil, Rehna Krishnan, Fangyou Yu, Chang Chen, Francis Burrows, Razqallah Hakem, Mathieu Lupien, Shane Harding, Benjamin H. Lok, Catherine O’Brien, Alejandro Berlin, Daniel D. De Carvalho, David G. Brooks, Daniel Schramek, Ming-Sound Tsao, Housheng Hansen He
{"title":"体内CRISPR筛选确定了MEN1在调节肿瘤与微环境相互作用中的双重功能","authors":"Peiran Su, Yin Liu, Tianyi Chen, Yibo Xue, Yong Zeng, Guanghui Zhu, Sujun Chen, Mona Teng, Xinpei Ci, Mengdi Guo, Michael Y. He, Jun Hao, Vivian Chu, Wenxi Xu, Shiyan Wang, Parinaz Mehdipour, Xin Xu, Sajid A. Marhon, Fraser Soares, Nhu-An Pham, Bell Xi Wu, Peter Hyunwuk Her, Shengrui Feng, Najd Alshamlan, Maryam Khalil, Rehna Krishnan, Fangyou Yu, Chang Chen, Francis Burrows, Razqallah Hakem, Mathieu Lupien, Shane Harding, Benjamin H. Lok, Catherine O’Brien, Alejandro Berlin, Daniel D. De Carvalho, David G. Brooks, Daniel Schramek, Ming-Sound Tsao, Housheng Hansen He","doi":"10.1038/s41588-024-01874-9","DOIUrl":null,"url":null,"abstract":"Functional genomic screens in two-dimensional cell culture models are limited in identifying therapeutic targets that influence the tumor microenvironment. By comparing targeted CRISPR–Cas9 screens in a two-dimensional culture with xenografts derived from the same cell line, we identified MEN1 as the top hit that confers differential dropout effects in vitro and in vivo. MEN1 knockout in multiple solid cancer types does not impact cell proliferation in vitro but significantly promotes or inhibits tumor growth in immunodeficient or immunocompetent mice, respectively. Mechanistically, MEN1 knockout redistributes MLL1 chromatin occupancy, increasing H3K4me3 at repetitive genomic regions, activating double-stranded RNA expression and increasing neutrophil and CD8+ T cell infiltration in immunodeficient and immunocompetent mice, respectively. Pharmacological inhibition of the menin–MLL interaction reduces tumor growth in a CD8+ T cell-dependent manner. These findings reveal tumor microenvironment-dependent oncogenic and tumor-suppressive functions of MEN1 and provide a rationale for targeting MEN1 in solid cancers. Loss of MEN1 affects tumor growth, varing with the components of the tumor microenvironment. These tumors show redistribution of MLL1 on chromatin and the activation of a viral mimicry response.","PeriodicalId":18985,"journal":{"name":"Nature genetics","volume":null,"pages":null},"PeriodicalIF":31.7000,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41588-024-01874-9.pdf","citationCount":"0","resultStr":"{\"title\":\"In vivo CRISPR screens identify a dual function of MEN1 in regulating tumor–microenvironment interactions\",\"authors\":\"Peiran Su, Yin Liu, Tianyi Chen, Yibo Xue, Yong Zeng, Guanghui Zhu, Sujun Chen, Mona Teng, Xinpei Ci, Mengdi Guo, Michael Y. He, Jun Hao, Vivian Chu, Wenxi Xu, Shiyan Wang, Parinaz Mehdipour, Xin Xu, Sajid A. Marhon, Fraser Soares, Nhu-An Pham, Bell Xi Wu, Peter Hyunwuk Her, Shengrui Feng, Najd Alshamlan, Maryam Khalil, Rehna Krishnan, Fangyou Yu, Chang Chen, Francis Burrows, Razqallah Hakem, Mathieu Lupien, Shane Harding, Benjamin H. Lok, Catherine O’Brien, Alejandro Berlin, Daniel D. De Carvalho, David G. Brooks, Daniel Schramek, Ming-Sound Tsao, Housheng Hansen He\",\"doi\":\"10.1038/s41588-024-01874-9\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Functional genomic screens in two-dimensional cell culture models are limited in identifying therapeutic targets that influence the tumor microenvironment. By comparing targeted CRISPR–Cas9 screens in a two-dimensional culture with xenografts derived from the same cell line, we identified MEN1 as the top hit that confers differential dropout effects in vitro and in vivo. MEN1 knockout in multiple solid cancer types does not impact cell proliferation in vitro but significantly promotes or inhibits tumor growth in immunodeficient or immunocompetent mice, respectively. Mechanistically, MEN1 knockout redistributes MLL1 chromatin occupancy, increasing H3K4me3 at repetitive genomic regions, activating double-stranded RNA expression and increasing neutrophil and CD8+ T cell infiltration in immunodeficient and immunocompetent mice, respectively. Pharmacological inhibition of the menin–MLL interaction reduces tumor growth in a CD8+ T cell-dependent manner. These findings reveal tumor microenvironment-dependent oncogenic and tumor-suppressive functions of MEN1 and provide a rationale for targeting MEN1 in solid cancers. Loss of MEN1 affects tumor growth, varing with the components of the tumor microenvironment. 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In vivo CRISPR screens identify a dual function of MEN1 in regulating tumor–microenvironment interactions
Functional genomic screens in two-dimensional cell culture models are limited in identifying therapeutic targets that influence the tumor microenvironment. By comparing targeted CRISPR–Cas9 screens in a two-dimensional culture with xenografts derived from the same cell line, we identified MEN1 as the top hit that confers differential dropout effects in vitro and in vivo. MEN1 knockout in multiple solid cancer types does not impact cell proliferation in vitro but significantly promotes or inhibits tumor growth in immunodeficient or immunocompetent mice, respectively. Mechanistically, MEN1 knockout redistributes MLL1 chromatin occupancy, increasing H3K4me3 at repetitive genomic regions, activating double-stranded RNA expression and increasing neutrophil and CD8+ T cell infiltration in immunodeficient and immunocompetent mice, respectively. Pharmacological inhibition of the menin–MLL interaction reduces tumor growth in a CD8+ T cell-dependent manner. These findings reveal tumor microenvironment-dependent oncogenic and tumor-suppressive functions of MEN1 and provide a rationale for targeting MEN1 in solid cancers. Loss of MEN1 affects tumor growth, varing with the components of the tumor microenvironment. These tumors show redistribution of MLL1 on chromatin and the activation of a viral mimicry response.
期刊介绍:
Nature Genetics publishes the very highest quality research in genetics. It encompasses genetic and functional genomic studies on human and plant traits and on other model organisms. Current emphasis is on the genetic basis for common and complex diseases and on the functional mechanism, architecture and evolution of gene networks, studied by experimental perturbation.
Integrative genetic topics comprise, but are not limited to:
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-Strategies and technologies for extracting function from genomic data
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