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Transcription factor EHF interacting with coactivator AJUBA aggravates malignancy and acts as a therapeutic target for gastroesophageal adenocarcinoma

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Acta Pharmaceutica Sinica B 2024年第5期14卷 2119-2136页

作者： Li Peng Yanyi Jiang Hengxing Chen Yongqiang Wang Qiusheng Lan Shuiqin Chen Zhanwang Huang Jingyuan Zhang Duanqing Tian Yuntan Qiu Diankui Cai Jiangyun Peng Daning Lu Xiaoqing Yuan Xianzhu Yang Dong Yin Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation Guangdong-Hong Kong Joint Laboratory for RNA MedicineSun Yat-sen Memorial HospitalSun Yat-sen UniversityGuangzhou 510120China Medical Research Center Sun Yat-sen Memorial HospitalSun Yat-sen UniversityGuangzhou 510120China Hefei Institutes of Physical Science Chinese Academy of SciencesHefei 230031China Department of Gastrointestinal Surgery Sun Yat-sen Memorial HospitalSun Yat-sen UniversityGuangzhou 510120China Department of Hepatobiliary Surgery Sun Yat-sen Memorial HospitalSun Yat-sen UniversityGuangzhou 510120China School of Biomedical Sciences and Engineering South China University of TechnologyGuangzhou International CampusGuangzhou 511442China

transcriptional dysregulation of genes is a hallmark of tumors and can serve as targets for cancer drug ***,it is extremely challenging to develop small-molecule inhibitors to target abnormally expressed transcription factors(TFs)except for the nuclear receptor family of *** is known about the interaction between TFs and transcription cofactors in gastroesophageal adenocarcinoma(GEA)or the therapeutic effects of targeting TF and transcription cofactor *** this study,we found that ETS homologous factor(EHF)expression is promoted by a core transcriptional regulatory circuitry(CRC),specifically ELF3-KLF5-GATA6,and interference with its expression suppressed the malignant biological behavior of GEA ***,we identified Ajuba LIM protein(AJUBA)as a new coactivator of EHF that cooperatively orchestrates transcriptional network activity in ***,we identified KRAS signaling as a common pathway downstream of EHF and ***,dual targeting of EHF and AJUBA by lipid nanoparticles cooperatively attenuated the malignant biological behaviors of GEA in vitro and in *** conclusion,EHF is upregulated by the CRC and promotes GEA malignancy by interacting with AJUBA through the KRAS *** of both EHF and its coactivator AJUBA through lipid nanoparticles is a novel potential therapeutic strategy.

关键词： EHF AJUBA KRAS pathway Enhancer core transcriptional regulatory circuitry Gastroesophageal adenocarcinoma Gastric adenocarcinoma Esophageal adenocarcinoma Transcription factor Coactivator Lipid nanoparticles

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