机构:[1]Department of Medical Oncology, The First People’s Hospital of Yunnan Province, Afliated Hospital of Kunming University of Science and Technology, Kunming 650000, China内科片肿瘤内科云南省第一人民医院[2]Faculty of Medicine, Kunming University of Science and Technology, Kunming 650000, China[3]Yunnan Digestive Endoscopy Clinical Medical Center, Department of Gastroenterology, The First People’s Hospital of Yunnan Province, Afliated Hospital of Kunming University of Science and Technology, 650000 Kunming, China内科片消化内科云南省第一人民医院[4]Department of Pathology, The First People’s Hospital of Yunnan Province, Afliated Hospital of Kunming University of Science and Technology, Kunming 650000, China医技片病理科云南省第一人民医院
Heat shock factors (HSFs) are a family of transcription factors, composed of HSF1, HSF2, and HSF4, to regulate cell stress reaction for maintaining cellular homeostasis in response to adverse stimuli. Recent studies have disclosed the roles of HSF1 and HSF2 in modulating tumor development, including colorectal cancer (CRC). However, HSF4, which is closely associated with pathology of congenital cataracts, remains less studied in tumors. In this study, we aimed to describe the regulatory effects of HSF4 and underlying molecular mechanism in CRC progression. By bioinformatic analysis of TCGA database and TMA-IHC assay, we identified that the expression of HSF4 was significantly upregulated in CRCs compared with normal colonic tissues and was a prognostic factor of poor outcomes of CRC patients. Function assays, including CCK-8, colony formation, transwell assays, and xenografted mouse model, were employed to verify that HSF4 promoted cell growth, colony formation, invasion of CRC cells in vitro, and tumor growth in vivo as a potential oncogenic factor. Mechanistically, results of Chromatin immunoprecipitation (ChIP) and immunoblotting assays revealed that HSF4 associated directly to MET promoter to enhance expression of c-MET, a well-known oncogene in multiple cancers, thus fueling the activity of downstream ERK1/2 and AKT signaling pathways. In further rescue experiments, restoration of c-MET expression abolished inhibitory cell growth and invasion induced by downregulated HSF4 expression. To sum up, our findings describe a crucial role of HSF4 in CRC progression by enhancing activity of c-MET and downstream ERK1/2 and AKT signaling pathways, and highlight HSF4 as a potential therapeutic target for anti-CRC treatment.
基金:
National Natural Science Foundation of China [81860522, 81860509]; Grant for Clinical Medical Center of Yunnan Provincial Health Commission [2020LCZXKF-XH02, 2021LCZXXF-XH03]; Yunnan Medical Training Program [202205AC160070, 2018HB049, D-2017002]
第一作者机构:[1]Department of Medical Oncology, The First People’s Hospital of Yunnan Province, Afliated Hospital of Kunming University of Science and Technology, Kunming 650000, China[2]Faculty of Medicine, Kunming University of Science and Technology, Kunming 650000, China
通讯作者:
推荐引用方式(GB/T 7714):
Zhang Wenjing,Zhang Xuelian,Cheng Peng,et al.HSF4 promotes tumor progression of colorectal cancer by transactivating c-MET[J].MOLECULAR AND CELLULAR BIOCHEMISTRY.2023,478(5):1141-1150.doi:10.1007/s11010-022-04582-2.
APA:
Zhang, Wenjing,Zhang, Xuelian,Cheng, Peng,Yue, Kelin,Tang, Ming...&Zhang, Yu.(2023).HSF4 promotes tumor progression of colorectal cancer by transactivating c-MET.MOLECULAR AND CELLULAR BIOCHEMISTRY,478,(5)
MLA:
Zhang, Wenjing,et al."HSF4 promotes tumor progression of colorectal cancer by transactivating c-MET".MOLECULAR AND CELLULAR BIOCHEMISTRY 478..5(2023):1141-1150