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Wang CR, Gong JH, Zhao ZB, Zhu Q, Shu B, Hu JJ, Cai D, Liu XY, Dai X, Qiu C, Gong JP, Zhong GC. m 6A demethylation of FOSL1 mRNA protects hepatoma cells against necrosis under glucose deprivation. Cell Death Differ 2024; 31:1029-1043. [PMID: 38762597 PMCID: PMC11303728 DOI: 10.1038/s41418-024-01308-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 04/25/2024] [Accepted: 04/26/2024] [Indexed: 05/20/2024] Open
Abstract
Stress-adaptive mechanisms enabling cancer cells to survive under glucose deprivation remain elusive. N6-methyladenosine (m6A) modification plays important roles in determining cancer cell fate and cellular stress response to nutrient deficiency. However, whether m6A modification functions in the regulation of cancer cell survival under glucose deprivation is unknown. Here, we found that glucose deprivation reduced m6A modification levels. Increasing m6A modification resulted in increased hepatoma cell necrosis under glucose deprivation, whereas decreasing m6A modification had an opposite effect. Integrated m6A-seq and RNA-seq revealed potential targets of m6A modification under glucose deprivation, including the transcription factor FOSL1; further, glucose deprivation upregulated FOSL1 by inhibiting FOSL1 mRNA decay in an m6A-YTHDF2-dependent manner through reducing m6A modification in its exon1 and 5'-UTR regions. Functionally, FOSL1 protected hepatoma cells against glucose deprivation-induced necrosis in vitro and in vivo. Mechanistically, FOSL1 transcriptionally repressed ATF3 by binding to its promoter. Meanwhile, ATF3 and MAFF interacted via their leucine zipper domains to form a heterodimer, which competed with NRF2 for binding to antioxidant response elements in the promoters of NRF2 target genes, thereby inhibiting their transcription. Consequently, FOSL1 reduced the formation of the ATF3-MAFF heterodimer, thereby enhancing NRF2 transcriptional activity and the antioxidant capacity of glucose-deprived-hepatoma cells. Thus, FOSL1 alleviated the necrosis-inducing effect of glucose deprivation-induced reactive oxygen species accumulation. Collectively, our study uncovers the protective role of m6A-FOSL1-ATF3 axis in hepatoma cell necrosis under glucose deprivation, and may provide new targets for cancer therapy.
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Affiliation(s)
- Chun-Rui Wang
- Department of Infectious Diseases, Institute for Viral Hepatitis, the Key Laboratory of Molecular Biology for Infectious Diseases, Chinese Ministry of Education, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jun-Hua Gong
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Zhi-Bo Zhao
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Qian Zhu
- Department of Nutrition and Epidemiology, School of Public Health, Chongqing Medical University, Chongqing, China
| | - Bian Shu
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jie-Jun Hu
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Dong Cai
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xin-Yi Liu
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xin Dai
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Chan Qiu
- Department of Gastroenterology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jian-Ping Gong
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Guo-Chao Zhong
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China.
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Huang F, Shi X, Hu M, Yan H, Li X, Ding Y, Zheng X, Cai X, Dai S, Xia Q, Cai Y. Blocking of FGFR4 signaling by F30 inhibits hepatocellular carcinoma cell proliferation through HMOX1-dependent ferroptosis pathway. Eur J Pharmacol 2024; 970:176493. [PMID: 38484925 DOI: 10.1016/j.ejphar.2024.176493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 03/01/2024] [Accepted: 03/11/2024] [Indexed: 03/23/2024]
Abstract
Excessive activation of FGF19/fibroblast growth factor receptor 4 (FGFR4) signaling is associated with poor survival of patients with hepatocellular carcinoma (HCC). FGFR4 inhibitors show promise for HCC treatment. F30, an indazole derivative designed through computer-aided drug design targeting FGFR4, demonstrated anti-HCC activity as described in our previous studies. However, the precise molecular mechanisms underlying F30's anticancer effects remain largely unexplored. We report here that F30 could effectively induce ferroptosis in HCC cells. The concentrations of cellular ferrous iron, the peroxidation of cell membranes and the homeostasis of reduced glutathione (GSH)/oxidized glutathione disulfide (GSSG) were dysregulated by F30, thereby affecting cellular redox status. Induction of ferroptosis in HCC by F30 was inhibited by specific ferroptosis inhibitor ferrostatin-1. F30 upregulates various ferroptosis-related genes, including the heme oxygenase enzymes 1 (HMOX1), a key mediator of redox regulation. Surprisingly, F30-induced ferroptosis in HCC is dependent on HMOX1. The dysregulation of cellular ferrous iron concentrations and cell membrane peroxidation was rescued when knocking down HMOX1 with specific small interfering RNA. These findings shed light on the molecular mechanisms underlying FGFR4-targeting F30's anti-HCC effects and suggest that FGFR4 inactivation could be beneficial for HCC treatment involving ferroptosis.
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Affiliation(s)
- Fengyu Huang
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Xueqin Shi
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Meng Hu
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Hang Yan
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Xiaohui Li
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Yujie Ding
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Xinxin Zheng
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Xiaojun Cai
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Shijie Dai
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Qinqin Xia
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Yuepiao Cai
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China.
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Zhang C, Wei W, Tu S, Liang B, Li C, Li Y, Luo W, Wu Y, Dai X, Wang Y, Zheng L, Hao L, Zhang C, Luo Z, Chen YG, Yan X. Upregulation of CYR61 by TGF-β and YAP signaling exerts a counter-suppression of hepatocellular carcinoma. J Biol Chem 2024; 300:107208. [PMID: 38521502 PMCID: PMC11021963 DOI: 10.1016/j.jbc.2024.107208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 03/10/2024] [Accepted: 03/13/2024] [Indexed: 03/25/2024] Open
Abstract
Transforming growth factor-β (TGF-β) and Hippo signaling are two critical pathways engaged in cancer progression by regulating both oncogenes and tumor suppressors, yet how the two pathways coordinately exert their functions in the development of hepatocellular carcinoma (HCC) remains elusive. In this study, we firstly conducted an integrated analysis of public liver cancer databases and our experimental TGF-β target genes, identifying CYR61 as a pivotal candidate gene relating to HCC development. The expression of CYR61 is downregulated in clinical HCC tissues and cell lines than that in the normal counterparts. Evidence revealed that CYR61 is a direct target gene of TGF-β in liver cancer cells. In addition, TGF-β-stimulated Smad2/3 and the Hippo pathway downstream effectors YAP and TEAD4 can form a protein complex on the promoter of CYR61, thereby activating the promoter activity and stimulating CYR61 gene transcription in a collaborative manner. Functionally, depletion of CYR61 enhanced TGF-β- or YAP-mediated growth and migration of liver cancer cells. Consistently, ectopic expression of CYR61 was capable of impeding TGF-β- or YAP-induced malignant transformation of HCC cells in vitro and attenuating HCC xenograft growth in nude mice. Finally, transcriptomic analysis indicates that CYR61 can elicit an antitumor program in liver cancer cells. Together, these results add new evidence for the crosstalk between TGF-β and Hippo signaling and unveil an important tumor suppressor function of CYR61 in liver cancer.
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Affiliation(s)
- Cheng Zhang
- The MOE Basic Research and Innovation Center for the Targeted Therapeutics of Solid Tumors, School of Basic Medicine, Jiangxi Medical College, Nanchang University, Nanchang, China; The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Wenjing Wei
- The MOE Basic Research and Innovation Center for the Targeted Therapeutics of Solid Tumors, School of Basic Medicine, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Shuo Tu
- The MOE Basic Research and Innovation Center for the Targeted Therapeutics of Solid Tumors, School of Basic Medicine, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Bo Liang
- The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Chun Li
- The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Yining Li
- The MOE Basic Research and Innovation Center for the Targeted Therapeutics of Solid Tumors, School of Basic Medicine, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Weicheng Luo
- The MOE Basic Research and Innovation Center for the Targeted Therapeutics of Solid Tumors, School of Basic Medicine, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Yiqing Wu
- The MOE Basic Research and Innovation Center for the Targeted Therapeutics of Solid Tumors, School of Basic Medicine, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Xiaohui Dai
- The MOE Basic Research and Innovation Center for the Targeted Therapeutics of Solid Tumors, School of Basic Medicine, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Yi Wang
- The MOE Basic Research and Innovation Center for the Targeted Therapeutics of Solid Tumors, School of Basic Medicine, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Lijuan Zheng
- The MOE Basic Research and Innovation Center for the Targeted Therapeutics of Solid Tumors, School of Basic Medicine, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Liang Hao
- The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Chunbo Zhang
- School of Pharmacy, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Zhijun Luo
- Queen Mary School, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Ye-Guang Chen
- The MOE Basic Research and Innovation Center for the Targeted Therapeutics of Solid Tumors, School of Basic Medicine, Jiangxi Medical College, Nanchang University, Nanchang, China; School of Life Sciences, Tsinghua University, Beijing, China
| | - Xiaohua Yan
- The MOE Basic Research and Innovation Center for the Targeted Therapeutics of Solid Tumors, School of Basic Medicine, Jiangxi Medical College, Nanchang University, Nanchang, China; The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China.
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Heravi G, Liu Z, Herroon M, Wilson A, Fan YY, Jiang Y, Vakeesan N, Tao L, Peng Z, Zhang K, Li J, Chapkin RS, Podgorski I, Liu W. Targeting Fatty Acid Desaturase I Inhibits Renal Cancer Growth Via ATF3-mediated ER Stress Response. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.03.23.586426. [PMID: 38586033 PMCID: PMC10996531 DOI: 10.1101/2024.03.23.586426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
Monounsaturated fatty acids (MUFAs) play a pivotal role in maintaining endoplasmic reticulum (ER) homeostasis, an emerging hallmark of cancer. However, the role of polyunsaturated fatty acid (PUFAs) desaturation in persistent ER stress driven by oncogenic abnormalities remains elusive. Fatty Acid Desaturase 1 (FADS1) is a rate-limiting enzyme controlling the bioproduction of long-chain PUFAs. Our previous research has demonstrated the significant role of FADS1 in cancer survival, especially in kidney cancers. We explored the underlying mechanism in this study. We found that pharmacological inhibition or knockdown of the expression of FADS1 effectively inhibits renal cancer cell proliferation and induces cell cycle arrest. The stable knockdown of FADS1 also significantly inhibits tumor formation in vivo. Mechanistically, we show that while FADS1 inhibition induces ER stress, its expression is also augmented by ER-stress inducers. Notably, FADS1-inhibition sensitized cellular response to ER stress inducers, providing evidence of FADS1's role in modulating the ER stress response in cancer cells. We show that, while FADS1 inhibition-induced ER stress leads to activation of ATF3, ATF3-knockdown rescues the FADS1 inhibition-induced ER stress and cell growth suppression. In addition, FADS1 inhibition results in the impaired biosynthesis of nucleotides and decreases the level of UPD-N-Acetylglucosamine, a critical mediator of the unfolded protein response. Our findings suggest that PUFA desaturation is crucial for rescuing cancer cells from persistent ER stress, supporting FADS1 as a new therapeutic target.
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Affiliation(s)
- Gioia Heravi
- Department of Pharmaceutical Sciences, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, Detroit, MI 48201, USA
| | - Zhenjie Liu
- Department of Pharmaceutical Sciences, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, Detroit, MI 48201, USA
| | - Mackenzie Herroon
- Department of Pharmacology, School of Medicine, Wayne State University, Detroit, MI 48201, USA
| | - Alexis Wilson
- Department of Pharmacology, School of Medicine, Wayne State University, Detroit, MI 48201, USA
- Department of Oncology, School of Medicine, Wayne State University, and Karmanos Cancer Institute, Detroit, MI 48201, USA
| | - Yang-Yi Fan
- Department of Nutrition, Program in Integrative Nutrition and Complex Diseases, Texas A&M University, College Station, TX, 77843, USA
| | - Yang Jiang
- Department of Pharmaceutical Sciences, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, Detroit, MI 48201, USA
| | - Nivisa Vakeesan
- Department of Pharmaceutical Sciences, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, Detroit, MI 48201, USA
| | - Li Tao
- Department of Pharmaceutical Sciences, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, Detroit, MI 48201, USA
- Department of Physiology, Wayne State University School of Medicine, Detroit, MI 48201, USA
| | - Zheyun Peng
- Department of Pharmaceutical Sciences, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, Detroit, MI 48201, USA
| | - Kezhong Zhang
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI 48201, USA
- Department of Biochemistry, Microbiology, and Immunology, School of Medicine, Wayne State University, Detroit, MI 48201, USA
- Department of Oncology, School of Medicine, Wayne State University, and Karmanos Cancer Institute, Detroit, MI 48201, USA
| | - Jing Li
- Department of Oncology, School of Medicine, Wayne State University, and Karmanos Cancer Institute, Detroit, MI 48201, USA
| | - Robert S. Chapkin
- Department of Nutrition, Program in Integrative Nutrition and Complex Diseases, Texas A&M University, College Station, TX, 77843, USA
- CPRIT Regional Center of Excellence in Cancer Research, Texas A&M University, College Station, TX, 77843, USA
| | - Izabela Podgorski
- Department of Pharmacology, School of Medicine, Wayne State University, Detroit, MI 48201, USA
- Department of Oncology, School of Medicine, Wayne State University, and Karmanos Cancer Institute, Detroit, MI 48201, USA
| | - Wanqing Liu
- Department of Pharmaceutical Sciences, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, Detroit, MI 48201, USA
- Department of Pharmacology, School of Medicine, Wayne State University, Detroit, MI 48201, USA
- Department of Oncology, School of Medicine, Wayne State University, and Karmanos Cancer Institute, Detroit, MI 48201, USA
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5
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Chen L, Shi H, Zhang W, Zhu Y, Chen H, Wu Z, Qi H, Liu J, Zhong M, Shi X, Wang T, Li Q. Carfilzomib suppressed LDHA-mediated metabolic reprogramming by targeting ATF3 in esophageal squamous cell carcinoma. Biochem Pharmacol 2024; 219:115939. [PMID: 38000560 DOI: 10.1016/j.bcp.2023.115939] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 11/09/2023] [Accepted: 11/21/2023] [Indexed: 11/26/2023]
Abstract
Carfilzomib, a second-generation proteasome inhibitor, has been approved as a treatment for relapsed and/or refractory multiple myeloma. Nevertheless, the molecular mechanism by which Carfilzomib inhibits esophageal squamous cell carcinoma (ESCC) progression largely remains to be determined. In the present study, we found that Carfilzomib demonstrated potent anti-tumor activity against esophageal squamous cell carcinoma both in vitro and in vivo. Mechanistically, carfilzomib triggers mitochondrial apoptosis and reprograms cellular metabolism in ESCC cells. Moreover, it has been identified that activating transcription factor 3 (ATF3) plays a crucial cellular target role in ESCC cells treated with Carfilzomib. Overexpression of ATF3 effectively antagonized the effects of carfilzomib on ESCC cell proliferation, apoptosis, and metabolic reprogramming. Furthermore, the ATF3 protein is specifically bound to lactate dehydrogenase A (LDHA) to effectively suppress LDHA-mediated metabolic reprogramming in response to carfilzomib treatment. Research conducted in xenograft models demonstrates that ATF3 mediates the anti-tumor activity of Carfilzomib. The examination of human esophageal squamous cell carcinoma indicated that ATF3 and LDHA have the potential to function as innovative targets for therapeutic intervention in the treatment of ESCC. Our findings demonstrate the novel function of Carfilzomib in modulating ESCC metabolism and progression, highlighting the potential of Carfilzomib as a promising therapeutic agent for the treatment of ESCC.
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Affiliation(s)
- Lu Chen
- Department of Pharmacy, Huashan Hospital, Fudan University, Shanghai, China
| | - Huanying Shi
- Department of Pharmacy, Huashan Hospital, Fudan University, Shanghai, China
| | - WenXin Zhang
- Department of Pharmacy, Huashan Hospital, Fudan University, Shanghai, China
| | - Yongjun Zhu
- Department of Cardio-Thoracic Surgery, Huashan Hospital, Fudan University, Shanghai, China
| | - Haifei Chen
- Department of Pharmacy, Huashan Hospital, Fudan University, Shanghai, China
| | - Zimei Wu
- Department of Pharmacy, Huashan Hospital, Fudan University, Shanghai, China
| | - Huijie Qi
- Department of Pharmacy, Huashan Hospital, Fudan University, Shanghai, China
| | - Jiafeng Liu
- Department of Pharmacy, Huashan Hospital, Fudan University, Shanghai, China
| | - Mingkang Zhong
- Department of Pharmacy, Huashan Hospital, Fudan University, Shanghai, China
| | - Xiaojin Shi
- Department of Pharmacy, Huashan Hospital, Fudan University, Shanghai, China
| | - Tianxiao Wang
- Department of Pharmacy, Huashan Hospital, Fudan University, Shanghai, China.
| | - Qunyi Li
- Department of Pharmacy, Huashan Hospital, Fudan University, Shanghai, China.
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Lu J, Ru J, Chen Y, Ling Z, Liu H, Ding B, Jiang Y, Ma J, Zhang D, Ge J, Li Y, Sun F, Chen D, Zheng S, Wu J. N 6 -methyladenosine-modified circSTX6 promotes hepatocellular carcinoma progression by regulating the HNRNPD/ATF3 axis and encoding a 144 amino acid polypeptide. Clin Transl Med 2023; 13:e1451. [PMID: 37877357 PMCID: PMC10599281 DOI: 10.1002/ctm2.1451] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 09/24/2023] [Accepted: 10/04/2023] [Indexed: 10/26/2023] Open
Abstract
BACKGROUND Circular RNAs (circRNAs) play a significant role in the initiation and progression of various cancers, including hepatocellular carcinoma (HCC). Circular syntaxin 6 (circSTX6, also known as hsa_circ_0007905) has been identified as a microRNA (miRNA) sponge in pancreatic adenocarcinoma. However, its full range of functions in terms of protein scaffold and translation remain largely unexplored in the context of HCC. METHODS The expression of circSTX6 and its encoded protein was examined in HCC tumour tissues. N6 -methyladenosine (m6 A) on circSTX6 was verified and quantified by methylated RNA immunoprecipitation (Me-RIP), RIP and dual luciferase reporter assays. The biological functions of circSTX6 and its encoded protein in HCC were clarified by in vitro and in vivo experiments. Mechanistically, the interaction between circSTX6 and heterogeneous nuclear ribonucleoprotein D (HNRNPD) was investigated by RNA pull-down, RIP and fluorescence in situ hybridization (FISH)/IF. The regulatory effects of circSTX6 and HNRNPD on activating transcription factor 3 (ATF3) mRNA were determined by mRNA stability and RIP assays. Furthermore, the presence of circSTX6-encoded protein was verified by mass spectrometry. RESULTS CircSTX6 and its encoded 144 amino acid polypeptide, circSTX6-144aa, were highly expressed in HCC tumour tissues and served as independent risk factors for overall survival in HCC patients. The expression of circSTX6 was regulated by METTL14 in an m6 A-dependent manner. Functionally, circSTX6 accelerated HCC proliferation and tumourigenicity and reinforced tumour metastasis in vitro and in vivo. Mechanistically, circSTX6 acted as a sponge for HNRNPD protein, facilitating its binding to ATF3 mRNA, consequently promoting ATF3 mRNA decay. Meanwhile, circSTX6-144aa promoted HCC proliferation, migration and invasion independent of circSTX6 itself. CONCLUSION Collectively, our study reveals that m6 A-modified circSTX6 drives malignancy in HCC through the HNRNPD/ATF3 axis, while its encoded circSTX6-144aa contributes to HCC progression independent of circSTX6. CirSTX6 and its encoded protein hold promise as potential biomarkers and therapeutic targets in HCC.
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Lan T, Wang W, Zeng XX, Tong YH, Mao ZJ, Wang SW. Saikosaponin A triggers cell ferroptosis in hepatocellular carcinoma by inducing endoplasmic reticulum stress-stimulated ATF3 expression. Biochem Biophys Res Commun 2023; 674:10-18. [PMID: 37393639 DOI: 10.1016/j.bbrc.2023.06.086] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 06/27/2023] [Indexed: 07/04/2023]
Abstract
Ferroptosis is a type of nonapoptotic necrotic cell death characterized by iron-dependent lipid peroxidation. Saikosaponin A (SsA), a natural bioactive triterpenoid saponin extracted from Radix Bupleuri, has shown potent antitumor activity against various tumors. However, the underlying mechanism of the antitumor activity of SsA remains unclear. Here, we discovered that SsA induced HCC cell ferroptosis in vitro and in vivo. Using RNA-sequence analysis, we found that SsA mainly affected the glutathione metabolic pathway and inhibited the expression of cystine transporter solute carrier family 7 member 11 (SLC7A11). Indeed, SsA increased intracellular malondialdehyde (MDA) and iron accumulation, while it decreased the levels of reduced glutathione (GSH) in HCC. Deferoxamine (DFO), ferrostatin-1 (Fer-1) and GSH could rescue SsA-induced cell death, whereas Z-VAD-FMK was found ineffective in inhibiting SsA-induced cell death in HCC. Importantly, our result indicated that SsA induced the expression of activation transcription factor 3 (ATF3). SsA-induced cell ferroptosis and suppression of SLC7A11 are dependent on ATF3 in HCC. Moreover, we revealed that SsA induced ATF3 upregulation via activation of endoplasmic reticulum (ER) stress. Taken together, our findings support that ATF3-dependent cell ferroptosis mediated the antitumor effects of SsA, opening the possibility to explore SsA as a ferroptosis inducer in HCC.
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Affiliation(s)
- Tian Lan
- Core Facility, The Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People's Hospital, Quzhou, 324000, China
| | - Wen Wang
- Preventive Treatment Center, Zhejiang Chinese Medical University Affiliated Four-provinces Marginal Hospital of Traditional Chinese Medicine, Quzhou Hospital of Traditional Chinese Medicine, Quzhou, 324000, China
| | - Xi-Xi Zeng
- Core Facility, The Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People's Hospital, Quzhou, 324000, China
| | - Yu-Hua Tong
- Department of Ophthalmology, The Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People's Hospital, Quzhou, 324000, China
| | - Zhu-Jun Mao
- College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China.
| | - Si-Wei Wang
- Core Facility, The Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People's Hospital, Quzhou, 324000, China.
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8
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Tian K, Wei J, Wang R, Wei M, Hou F, Wu L. Sophoridine derivative 6j inhibits liver cancer cell proliferation via ATF3 mediated ferroptosis. Cell Death Discov 2023; 9:296. [PMID: 37580343 PMCID: PMC10425377 DOI: 10.1038/s41420-023-01597-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 07/28/2023] [Accepted: 08/09/2023] [Indexed: 08/16/2023] Open
Abstract
Liver cancer is one of the most lethal malignancies with an annual death of over 830,000 cases. Although targeted therapeutic drugs have achieved certain clinical efficacy, only sorafenib and lenvatinib are currently marketed as first-line targeted drugs to treat patients with advanced liver cancer. Therefore, developing more drugs are urgently needed. Ferroptosis is an iron-dependent programmed cell death (PCD) distinct from known PCDs including apoptosis, necrosis, and autophagy. Targeting ferroptosis is recognized as a promising potential therapeutic modality for liver cancer. Activating transcription factor 3 (ATF3) is an important ferroptosis inducer and targeting ATF3 offers a potential means to cancer therapy. In the present study, we reported for the first time a sophoridine derivative 6j with promising anti-liver cancer effects in vitro and in vivo. Compound 6j could induce liver cancer cells ferroptosis by promoting the accumulation of intracellular Fe2+, reactive oxygen species (ROS), and MDA. Inhibition of ferroptosis by ferrostatin-1 alleviated 6j induced accumulation of Fe2+, ROS, and MDA and restored cell viability. Further study revealed that compound 6j upregulated the expression of ATF3 via ER stress and knockdown of ATF3 by RNA interference attenuated 6j induced ferroptosis and cell proliferation inhibition. This study would provide new insights for the design of ferroptosis inducers and the development of anti-liver cancer drugs.
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Affiliation(s)
- Kunpeng Tian
- School of Medicine, Guangxi University, Nanning, 530004, Guangxi, PR China
- Pediatrics Research Institute of Hunan Province, Hunan Children's Hospital, Changsha, 410007, Hunan, PR China
| | - Jinrui Wei
- Guangxi Scientific Research Center of Traditional Chinese Medicine, Guangxi University of Chinese Medicine, Nanning, 530200, Guangxi, PR China
| | - Ru Wang
- School of Medicine, Guangxi University, Nanning, 530004, Guangxi, PR China
| | - Mingming Wei
- The State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, College of Pharmacy, Nankai University, Tianjin, 300071, PR China
| | - Fei Hou
- The State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, College of Pharmacy, Nankai University, Tianjin, 300071, PR China
| | - Lichuan Wu
- School of Medicine, Guangxi University, Nanning, 530004, Guangxi, PR China.
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Sun J, Li Y, Shi M, Tian H, Li J, Zhu K, Guo Y, Mu Y, Geng J, Li Z. A Positive Feedback Loop of lncRNA HOXD-AS2 and SMYD3 Facilitates Hepatocellular Carcinoma Progression via the MEK/ERK Pathway. J Hepatocell Carcinoma 2023; 10:1237-1256. [PMID: 37533602 PMCID: PMC10390764 DOI: 10.2147/jhc.s416946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 07/20/2023] [Indexed: 08/04/2023] Open
Abstract
Purpose HOX cluster-embedded long noncoding RNAs (HOX-lncRNAs) have been shown to be tightly related to hepatocellular carcinoma (HCC). However, the potential biological roles and underlying molecular mechanism of HOX-lncRNAs in HCC largely remains to be elucidated. Methods The expression signature of eighteen HOX-lncRNAs in HCC cell lines were measured by qRT-PCR. HOXD-AS2 expression and its clinical significance in HCC was investigated by bioinformatics analysis utilizing the TCGA data. Subcellular localization of HOXD-AS2 in HCC cells was observed by RNA-FISH. Loss‑of‑function experiments in vitro and in vivo were conducted to probe the roles of HOXD-AS2 in HCC. Potential HOXD-AS2-controlled genes and signaling pathways were revealed by RNA-seq. Rescue experiments were performed to validate that SMYD3 mediates HOXD-AS2 promoting HCC progression. The positive feedback loop of HOXD-AS2 and SMYD3 was identified by luciferase reporter assay and ChIP-qPCR. Results HOXD-AS2 was dramatically elevated in HCC, and its up-regulation exhibited a positive association with aggressive clinical features (T stage, pathologic stage, histologic grade, AFP level, and vascular invasion) and unfavorable prognosis of HCC patients. HOXD-AS2 was distributed both in the nucleus and the cytoplasm of HCC cells. Knockdown of HOXD-AS2 restrained the proliferation, migration, invasion of HCC cells in vitro, as well as tumor growth in subcutaneous mouse model. Transcriptome analysis demonstrated that SMYD3 expression and activity of MEK/ERK pathway were impaired by silencing HOXD-AS2 in HCC cells. Rescue experiments revealed that SMYD3 as downstream target mediated oncogenic functions of HOXD-AS2 in HCC cells through altering the expression of cyclin B1, cyclin E1, MMP2 as well as the activity of MEK/ERK pathway. Additionally, HOXD-AS2 was uncovered to be positively regulated at transcriptional level by its downstream gene of SMYD3. Conclusion HOXD-AS2, a novel oncogenic HOX-lncRNA, facilitates HCC progression by forming a positive feedback loop with SMYD3 and activating the MEK/ERK pathway.
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Affiliation(s)
- Jin Sun
- National-Local Joint Engineering Research Center of Biodiagnostics and Biotherapy, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
- Shaanxi Provincial Clinical Research Center for Hepatic & Splenic Diseases, the Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
- Center for Tumor and Immunology, the Precision Medical Institute, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Yingnan Li
- National-Local Joint Engineering Research Center of Biodiagnostics and Biotherapy, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
- Shaanxi Provincial Clinical Research Center for Hepatic & Splenic Diseases, the Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
- Center for Tumor and Immunology, the Precision Medical Institute, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Mengjiao Shi
- National-Local Joint Engineering Research Center of Biodiagnostics and Biotherapy, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
- Shaanxi Provincial Clinical Research Center for Hepatic & Splenic Diseases, the Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Hongwei Tian
- National-Local Joint Engineering Research Center of Biodiagnostics and Biotherapy, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
- Shaanxi Provincial Clinical Research Center for Hepatic & Splenic Diseases, the Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
- Center for Tumor and Immunology, the Precision Medical Institute, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Jun Li
- National-Local Joint Engineering Research Center of Biodiagnostics and Biotherapy, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
- Shaanxi Provincial Clinical Research Center for Hepatic & Splenic Diseases, the Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
- Center for Tumor and Immunology, the Precision Medical Institute, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Kai Zhu
- National-Local Joint Engineering Research Center of Biodiagnostics and Biotherapy, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
- Shaanxi Provincial Clinical Research Center for Hepatic & Splenic Diseases, the Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
- Center for Tumor and Immunology, the Precision Medical Institute, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Ying Guo
- National-Local Joint Engineering Research Center of Biodiagnostics and Biotherapy, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
- Shaanxi Provincial Clinical Research Center for Hepatic & Splenic Diseases, the Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
- Center for Tumor and Immunology, the Precision Medical Institute, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Yanhua Mu
- National-Local Joint Engineering Research Center of Biodiagnostics and Biotherapy, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
- Shaanxi Provincial Clinical Research Center for Hepatic & Splenic Diseases, the Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
- Center for Tumor and Immunology, the Precision Medical Institute, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Jing Geng
- National-Local Joint Engineering Research Center of Biodiagnostics and Biotherapy, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
- Shaanxi Provincial Clinical Research Center for Hepatic & Splenic Diseases, the Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
- Center for Tumor and Immunology, the Precision Medical Institute, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Zongfang Li
- National-Local Joint Engineering Research Center of Biodiagnostics and Biotherapy, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
- Shaanxi Provincial Clinical Research Center for Hepatic & Splenic Diseases, the Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
- Center for Tumor and Immunology, the Precision Medical Institute, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
- Department of Geriatric General Surgery, the Second Affiliated Hospital of Xi’ an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
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Chen C, Lin HG, Yao Z, Jiang YL, Yu HJ, Fang J, Li WN. Transcription factor glucocorticoid modulatory element-binding protein 1 promotes hepatocellular carcinoma progression by activating Yes-associate protein 1. World J Gastrointest Oncol 2023; 15:988-1004. [PMID: 37389116 PMCID: PMC10302989 DOI: 10.4251/wjgo.v15.i6.988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 03/18/2023] [Accepted: 04/12/2023] [Indexed: 06/14/2023] Open
Abstract
BACKGROUND Glucocorticoid modulatory element-binding protein 1 (GMEB1), which has been identified as a transcription factor, is a protein widely expressed in various tissues. Reportedly, the dysregulation of GMEB1 is linked to the genesis and development of multiple cancers.
AIM To explore GMEB1’s biological functions in hepatocellular carcinoma (HCC) and figuring out the molecular mechanism.
METHODS GMEB1 expression in HCC tissues was analyzed employing the StarBase database. Immunohistochemical staining, Western blotting and quantitative real-time PCR were conducted to examine GMEB1 and Yes-associate protein 1 (YAP1) expression in HCC cells and tissues. Cell counting kit-8 assay, Transwell assay and flow cytometry were utilized to examine HCC cell proliferation, migration, invasion and apoptosis, respectively. The JASPAR database was employed for predicting the binding site of GMEB1 with YAP1 promoter. Dual-luciferase reporter gene assay and chromatin immunoprecipitation-qPCR were conducted to verify the binding relationship of GMEB1 with YAP1 promoter region.
RESULTS GMEB1 was up-regulated in HCC cells and tissues, and GMEB1 expression was correlated to the tumor size and TNM stage of HCC patients. GMEB1 overexpression facilitated HCC cell multiplication, migration, and invasion, and suppressed the apoptosis, whereas GMEB1 knockdown had the opposite effects. GMEB1 bound to YAP1 promoter region and positively regulated YAP1 expression in HCC cells.
CONCLUSION GMEB1 facilitates HCC malignant proliferation and metastasis by promoting the transcription of the YAP1 promoter region.
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Affiliation(s)
- Cheng Chen
- Department of Medical Oncology, Zhejiang Xiaoshan Hospital, Hangzhou 311202, Zhejiang Province, China
| | - Hai-Guan Lin
- Department of General Surgery, People’s Liberation Army Strategic Support Force Characteristic Medical Center, Beijing 100101, China
| | - Zheng Yao
- Department of Radiation Oncology, Cancer Hospital of The University of Chinese Academy of Sciences, Hangzhou 310022, Zhejiang Province, China
| | - Yi-Ling Jiang
- Department of Medical Oncology, Zhejiang Xiaoshan Hospital, Hangzhou 311202, Zhejiang Province, China
| | - Hong-Jin Yu
- Department of Medical Oncology, Zhejiang Xiaoshan Hospital, Hangzhou 311202, Zhejiang Province, China
| | - Jing Fang
- Department of Medical Oncology, Zhejiang Xiaoshan Hospital, Hangzhou 311202, Zhejiang Province, China
| | - Wei-Na Li
- Department of Medical Oncology, Zhejiang Xiaoshan Hospital, Hangzhou 311202, Zhejiang Province, China
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Wang M, Zhang L, Huang X, Sun Q. Ligustrazine promotes hypoxia/reoxygenation-treated trophoblast cell proliferation and migration by regulating the microRNA-27a-3p/ATF3 axis. Arch Biochem Biophys 2023; 737:109522. [PMID: 36657605 DOI: 10.1016/j.abb.2023.109522] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 01/06/2023] [Accepted: 01/15/2023] [Indexed: 01/17/2023]
Abstract
OBJECTIVE Preeclampsia (PE) is a pregnancy-specific syndrome. Ligustrazine (LSZ) is involved in hypoxia/reoxygenation (H/R)-treated trophoblast cell regulation, but its mechanism remains elusive. This study explored the mechanism of LSZ in H/R-treated trophoblast cells to provide a theoretical basis for the new treatment method development for PE. METHODS H/R HTR8/SVneo cell model was established for PE simulation to some extent. Trophoblast cell proliferation, apoptosis rate, migration, and invasion were detected by MTT assay, flow cytometry, scratch test, and Transwell assay. miR-27a-3p expression in trophoblast cells was detected by RT-qPCR. Binding sites between miR-27a-3p and ATF3 were predicted using Starbase and verified by dual-luciferase reporter assay. Activating transcription factor 3 (ATF3), β-catenin, Cyclin D1, and c-Myc protein levels were examined using Western blot. After LSZ treatment, H/R-induced HTR8/SVneo cells were delivered with miR-27a-3p mimic or ATF3 siRNA to verify their roles in HTR8/SVneo cells. RESULTS LSZ facilitated the proliferation, migration, and invasion of trophoblast cells and inhibited apoptosis. miR-27a-3p was elevated in H/R-induced HTR8/SVneo cells and miR-27a-3p overexpression annulled the effect of LSZ on trophoblast cells. miR-27a-3p targeted ATF3. ATF3 silencing averted the property of LSZ on trophoblast cells. Wnt/β-catenin pathway-related proteins were repressed in H/R-induced HTR8/SVneo cells, and LSZ activated the Wnt/β-catenin pathway by promoting ATF3 expression. CONCLUSION LSZ mediated the Wnt pathway by regulating the miR-27a-3p/ATF3 axis, thus promoting the proliferation and migration of trophoblast cells. The protective mechanism of LSZ showed the potential application value in the treatment of PE.
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Affiliation(s)
- Min Wang
- Department of Gynaecology and Obstetrics, Jinan Maternity and Child Care Hospital, Jinan, 250001, Shandong Province, China
| | - Li Zhang
- Department of Gynaecology and Obstetrics, Jinan Maternity and Child Care Hospital, Jinan, 250001, Shandong Province, China
| | - Xiuyan Huang
- Department of Gynaecology and Obstetrics, Jinan Maternity and Child Care Hospital, Jinan, 250001, Shandong Province, China
| | - Qian Sun
- Department of Gynaecology and Obstetrics, Jinan Maternity and Child Care Hospital, Jinan, 250001, Shandong Province, China.
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Deregulation of host gene expression by HPV16 E8^E2 knock-out genomes is due to increased productive replication. Virology 2023; 581:39-47. [PMID: 36870121 DOI: 10.1016/j.virol.2023.02.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 02/06/2023] [Accepted: 02/13/2023] [Indexed: 02/24/2023]
Abstract
Productive replication of human papillomaviruses (HPV) only takes place in differentiating keratinocytes. The HPV16 E8^E2 protein acts as a repressor of viral gene expression and genome replication and HPV16 E8^E2 knock-out (E8-) genomes display enhanced viral late protein expression in differentiated cells. Global transcriptome analysis of differentiated HPV16 wild-type and E8-cell lines revealed a small number of differentially expressed genes which are not related to cell cycle, DNA metabolism or keratinocyte differentiation. The analysis of selected genes suggested that deregulation requires cell differentiation and positively correlated with the expression of viral late, not early transcripts. Consistent with this, the additional knock-out of the viral E4 and E5 genes, which are known to enhance productive replication, attenuated the deregulation of these host cell genes. In summary, these data reveal that productive HPV16 replication modulates host cell transcription.
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Xu H, Bao X, Yang J, Kong H, Li Y, Sun Z. Cysteine-rich 61(CYR61) alleviates cyclophosphamide-induced proliferation inhibition in ovarian granulosa cells via suppressing NLRP3/caspase1-mediated pyroptosis. Hum Exp Toxicol 2023; 42:9603271231152831. [PMID: 36650058 DOI: 10.1177/09603271231152831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
BACKGROUND We investigated the level of Cysteine-rich 61 (CYR61) in premature ovarian failure as well as its regulatory molecular mechanism in this study. METHODS AND RESULTS Cyclophosphamide (CTX) was used to induce OGCs (rat ovarian granulosa cells) and rats to establish in vivo and in vitro premature ovarian failure models. H&E staining was used to detect the pathological changes of ovarian histopathology. Si-NLRP3 (NOD-like receptor thermal protein domain associated protein 3, NLRP3) and si-CYR61 were transfected into OGCs using lipofectamine 3000. RT-qPCR and western blot were used to detect the expressions of CYR61 in ovarian tissue and OGCs. It showed that the expression of CYR61 was significantly down-regulated in premature ovarian failure model. Cell viability was detected using a Cell Counting Kit-8 (CCK-8) kit. TUNEL (Terminal deoxynucleotidyl transferase-mediated dUTP biotin nick end labeling) staining was used to detect the apoptosis. 5-Ethynyl-2'-deoxyuridine (EdU) and SA-β-gal (senescence-associated β-galactosidase) staining were used to assess the proliferation and senescence. The expression of CYR61 in OGCs and ovarian tissues were detected by immunofluorescence and immunohistochemical staining. Overexpression of CYR61 significantly promoted OGCs proliferation and inhibited pyroptosis and apoptosis. Western blot was used to detect the protein expressions of p53 and p21 in OGCs. Flow cytometry was used to detect the pyroptosis. CYR61 overexpression inhibited the expression of NLRP3 and caspase-1 in CTX-induced OGCs according to western blot results. Moreover, we found that CYR61 overexpression down-regulated the protein expressions of p53 and p21 in CTX-induced OGCs. CONCLUSION CYR61 inhibited CTX-induced OGCs senescence, and the mechanism may be related to the regulation of caspase-1/NLRP3-induced pyroptosis.
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Affiliation(s)
- Hongxia Xu
- Faculty of Environmental Science and Engineering, 47910Kunming University of Science and Technology, Kunming, China.,Department of Reproductive Medical Centre, The First People's Hospital of Yunnan Province, Kunming, China
| | - Xiumin Bao
- School of Medicine, 47910Kunming University of Science and Technology, Kunming, China
| | - Junya Yang
- School of Medicine, 47910Kunming University of Science and Technology, Kunming, China
| | - Hanxin Kong
- School of Medicine, 47910Kunming University of Science and Technology, Kunming, China
| | - Yan Li
- School of Medicine, 47910Kunming University of Science and Technology, Kunming, China
| | - Zhiwei Sun
- School of Medicine, 47910Kunming University of Science and Technology, Kunming, China.,Department of Hepatobiliary and Pancreatic Surgery, The First People's Hospital of Yunnan, Kunming, China
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Shen H, Gu X, Li H, Tang M, Li X, Zhang Y, Su F, Wang Z. Exploring Prognosis, Tumor Microenvironment and Tumor Immune Infiltration in Hepatocellular Carcinoma Based on ATF/CREB Transcription Factor Family Gene-Related Model. J Hepatocell Carcinoma 2023; 10:327-345. [PMID: 36874250 PMCID: PMC9983578 DOI: 10.2147/jhc.s398713] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 02/20/2023] [Indexed: 03/02/2023] Open
Abstract
Introduction Hepatocellular carcinoma (HCC) is the most common form of primary liver cancer. It is the fourth leading cause of cancer-related death worldwide. Deregulation of the ATF/CREB family is associated with the progression of metabolic homeostasis and cancer. Because the liver plays a central role in metabolic homeostasis, it is critical to assess the predictive value of the ATF/CREB family in the diagnosis and prognosis of HCC. Methods Using data from The Cancer Genome Atlas (TCGA), this research evaluated the expression, copy number variations, and frequency of somatic mutations of 21 genes in the ATF/CREB family in HCC. A prognostic model based on the ATF/CREB gene family was developed via Lasso and Cox regression analyses, with the TCGA cohort serving as the training dataset and the International Cancer Genome Consortium (ICGC) cohort serving as the validation set. Kaplan-Meier and receiver operating characteristic analyses verified the accuracy of the prognostic model. Furthermore, the association among the prognostic model, immune checkpoints, and immune cells was examined. Results High-risk patients exhibited an unfavorable outcome as opposed to those in the low-risk category. Multivariate Cox analysis revealed that the risk score calculated based on the prognostic model was an independent prognostic factor for HCC. Analysis of immune mechanisms revealed that the risk score had a positive link to the expression of immune checkpoints, particularly CD274, PDCD1, LAG3, and CTLA4. Differences in immune cells and immune-associated roles were found between the high- and low-risk patients, as determined by single-sample gene set enrichment analysis. The core genes ATF1, CREB1, and CREB3 in the prognostic model were shown to be upregulated in HCC tissues as opposed to adjoining normal tissues, and the 10-year overall survival (OS) rate was worse among patients with elevated expression levels of ATF1, CREB1, and CREB3. Elevated expression levels of ATF1, CREB1, and CREB3 in HCC tissues were confirmed by qRT-PCR and immunohistochemistry studies. Conclusion According to the results of our training set and test set, the risk model based on the six ATF/CREB gene signatures predicting prognosis has certain predictive accuracy in predicting the survival of HCC patients. This study provides novel insights into the individualized treatment of patients with HCC.
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Affiliation(s)
- Honghong Shen
- Department of Medical Oncology, First Affiliated Hospital of Bengbu Medical College, Bengbu, People's Republic of China
| | - Xianhua Gu
- Department of Gynecology Oncology, First Affiliated Hospital of Bengbu Medical College, Bengbu, People's Republic of China
| | - Huiyuan Li
- Department of Medical Oncology, First Affiliated Hospital of Bengbu Medical College, Bengbu, People's Republic of China
| | - Mingyue Tang
- Department of Medical Oncology, First Affiliated Hospital of Bengbu Medical College, Bengbu, People's Republic of China
| | - Xinwei Li
- Department of Medical Oncology, First Affiliated Hospital of Bengbu Medical College, Bengbu, People's Republic of China
| | - Yue Zhang
- Department of Medical Oncology, First Affiliated Hospital of Bengbu Medical College, Bengbu, People's Republic of China
| | - Fang Su
- Department of Medical Oncology, First Affiliated Hospital of Bengbu Medical College, Bengbu, People's Republic of China
| | - Zishu Wang
- Department of Medical Oncology, First Affiliated Hospital of Bengbu Medical College, Bengbu, People's Republic of China
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UPF1/circRPPH1/ATF3 feedback loop promotes the malignant phenotype and stemness of GSCs. Cell Death Dis 2022; 13:645. [PMID: 35871061 PMCID: PMC9308777 DOI: 10.1038/s41419-022-05102-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 07/13/2022] [Accepted: 07/13/2022] [Indexed: 01/21/2023]
Abstract
Glioblastoma multiforme (GBM) is the most lethal type of craniocerebral gliomas. Glioma stem cells (GSCs) are fundamental reasons for the malignancy and recurrence of GBM. Revealing the critical mechanism within GSCs' self-renewal ability is essential. Our study found a novel circular RNA (circRPPH1) that was up-regulated in GSCs and correlated with poor survival. The effect of circRPPH1 on the malignant phenotype and self-renewal of GSCs was detected in vitro and in vivo. Mechanistically, UPF1 can bind to circRPPH1 and maintain its stability. Therefore, more existing circRPPH1 can interact with transcription factor ATF3 to further transcribe UPF1 and Nestin expression. It formed a feedback loop to keep a stable stream for stemness biomarker Nestin to strengthen tumorigenesis of GSCs continually. Besides, ATF3 can activate the TGF-β signaling to drive GSCs for tumorigenesis. Knocking down the expression of circRPPH1 significantly inhibited the proliferation and clonogenicity of GSCs both in vitro and in vivo. The overexpression of circRPPH1 enhanced the self-renewal of GSCs. Our findings suggest that UPF1/circRPPH1/ATF3 maintains the potential self-renewal of GSCs through interacting with RNA-binding protein and activating the TGF-β signal pathway. Breaking the feedback loop against self-renewing GSCs may represent a novel therapeutic target in GBM treatment.
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Wang X, Zeng C, Lai Y, Su B, Chen F, Zhong J, Chu H, Bing D. NRF2/HO-1 pathway activation by ATF3 in a noise-induced hearing loss murine model. Arch Biochem Biophys 2022; 721:109190. [PMID: 35331713 DOI: 10.1016/j.abb.2022.109190] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 03/03/2022] [Accepted: 03/17/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND Excessive oxidative stress of the inner ear as a result of high, intense noise exposure is regarded as a major mechanism underlying the development of noise-induced hearing loss (NIHL). The present study was designed to explore the effect and mechanism of activated transcription factor 3 (ATF3) in reduction/oxidation homeostasis of NIHL. METHOD In vitro and in vivo assays were performed to investigate the functional role of ATF3 in the inner ear. Mice hearing was measured using auditory brainstem response. ATF3 short hairpin RNA (shRNA) was transfected into House Ear Institute-Organ of Corti 1 (HEI-OC1) cells to decrease ATF3 expression. Western blotting and quantitative real-time polymerase chain reaction (RT-qPCR) were performed to quantify ATF3, NRF2, HO-1 and NQO1 expression. Glutathione (GSH) assay was performed to detect intracellular GSH levels. ATF3 immunofluorescence analysis was carried out in cochlear cryosectioned samples and HEI-OC1 cells to localize ATF3 expression. Cell counting kit 8 assay and flow cytometry were performed to analyze cell viability. RESULT ATF3 was upregulated in noise-exposed cochleae and HEI-OC1 cells treated with H2O2. NRF2 is a key factor regulated by ATF3. NRF2, HO-1, NQO1, and GSH expression was significantly downregulated in shATF3 HEI-OC1 cells. ATF3 silencing promoted reactive oxygen species accumulation and increased apoptosis and necrosis with H2O2 stimulus. CONCLUSION ATF3 functions as an antioxidative factor by activating the NRF2/HO-1 pathway.
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Affiliation(s)
- Xiaodi Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Tongji Hospital Affiliated to Tongji Medical College of Huazhong University of Science and Technology, Hubei, Wuhan, China
| | - Chenghui Zeng
- Department of Otorhinolaryngology Head and Neck Surgery, Tongji Hospital Affiliated to Tongji Medical College of Huazhong University of Science and Technology, Hubei, Wuhan, China
| | - Yanbing Lai
- Department of Otorhinolaryngology Head and Neck Surgery, Tongji Hospital Affiliated to Tongji Medical College of Huazhong University of Science and Technology, Hubei, Wuhan, China
| | - Bo Su
- Department of Otorhinolaryngology Head and Neck Surgery, Tongji Hospital Affiliated to Tongji Medical College of Huazhong University of Science and Technology, Hubei, Wuhan, China
| | - Fangyi Chen
- Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen 518055, China; Department of Biology, Brain Research Center, Southern University of Science and Technology, Shenzhen 518055, China
| | - Jinhao Zhong
- Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Hanqi Chu
- Department of Otorhinolaryngology Head and Neck Surgery, Tongji Hospital Affiliated to Tongji Medical College of Huazhong University of Science and Technology, Hubei, Wuhan, China.
| | - Dan Bing
- Department of Otorhinolaryngology Head and Neck Surgery, Tongji Hospital Affiliated to Tongji Medical College of Huazhong University of Science and Technology, Hubei, Wuhan, China.
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Weng N, Qin S, Liu J, Huang X, Jiang J, Zhou L, Zhang Z, Xie N, Wang K, Jin P, Luo M, Peng L, Nice EC, Goel A, Han S, Huang C, Zhu Q. Repurposing econazole as a pharmacological autophagy inhibitor to treat pancreatic ductal adenocarcinoma. Acta Pharm Sin B 2022; 12:3085-3102. [PMID: 35865101 PMCID: PMC9293665 DOI: 10.1016/j.apsb.2022.01.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 12/18/2021] [Accepted: 12/20/2021] [Indexed: 12/21/2022] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is characterized by the highest mortality among carcinomas. The pathogenesis of PDAC requires elevated autophagy, inhibition of which using hydroxychloroquine has shown promise. However, current realization is impeded by its suboptimal use and unpredictable toxicity. Attempts to identify novel autophagy-modulating agents from already approved drugs offer a rapid and accessible approach. Here, using a patient-derived organoid model, we performed a comparative analysis of therapeutic responses among various antimalarial/fungal/parasitic/viral agents, through which econazole (ECON), an antifungal compound, emerged as the top candidate. Further testing in cell-line and xenograft models of PDAC validated this activity, which occurred as a direct consequence of dysfunctional autophagy. More specifically, ECON boosted autophagy initiation but blocked lysosome biogenesis. RNA sequencing analysis revealed that this autophagic induction was largely attributed to the altered expression of activation transcription factor 3 (ATF3). Increased nuclear import of ATF3 and its transcriptional repression of inhibitor of differentiation-1 (ID-1) led to inactivation of the AKT/mammalian target of rapamycin (mTOR) pathway, thus giving rise to autophagosome accumulation in PDAC cells. The magnitude of the increase in autophagosomes was sufficient to elicit ER stress-mediated apoptosis. Furthermore, ECON, as an autophagy inhibitor, exhibited synergistic effects with trametinib on PDAC. This study provides direct preclinical and experimental evidence for the therapeutic efficacy of ECON in PDAC treatment and reveals a mechanism whereby ECON inhibits PDAC growth.
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Wang J, Wang C, Yang L, Li K. Identification of the critical genes and miRNAs in hepatocellular carcinoma by integrated bioinformatics analysis. Med Oncol 2022; 39:21. [PMID: 34982264 DOI: 10.1007/s12032-021-01622-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 11/29/2021] [Indexed: 12/24/2022]
Abstract
Hepatocellular carcinoma (HCC) is a global health problem with complex etiology and pathogenesis. Microarray data are increasingly being used as a novel and effective method for cancer pathogenesis analysis. An integrative analysis of genes and miRNA for HCC was conducted to unravel the potential prognosis of HCC. Two gene microarray datasets (GSE89377 and GSE101685) and two miRNA expression profiles (GSE112264 and GSE113740) were obtained from Gene Expression Omnibus database. A total of 177 differently expressed genes (DEGs) and 80 differently expressed miRNAs (DEMs) were screened out. Functional enrichment of DEGs was proceeded by Clue GO and these genes were significantly enriched in the chemical carcinogenesis pathway. A protein-protein interaction network was then established on the STRING platform, and ten hub genes (CDC20, TOP2A, ASPM, NCAPG, AURKA, CYP2E1, HMMR, PRC1, TYMS, and CYP4A11) were visualized via Cytoscape software. Then, a miRNA-target network was established to identify the hub dysregulated miRNA. A key miRNA (hsa-miR-124-3p) was filtered. Finally, the miRNA-target-transcription factor network was constructed for hsa-miR-124-3p. The network for hsa-miR-124-3p included two transcription factors (TFs) and five targets. These identified DEGs and DEMs, TFs, targets, and regulatory networks may help advance our understanding of the underlying pathogenesis of HCC.
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Affiliation(s)
- Jun Wang
- School of Biological Food and Environment, Hefei University, Hefei, 230601, China.
| | - Chuyan Wang
- School of Biological Food and Environment, Hefei University, Hefei, 230601, China
| | - Liuqing Yang
- School of Biological Food and Environment, Hefei University, Hefei, 230601, China
| | - Kexin Li
- School of Biological Food and Environment, Hefei University, Hefei, 230601, China
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19
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Lin H, Ho A, Huang H, Yang B, Shih B, Lin H, Yeh C, Hsu C, Cheng C. STAT3‐mediated gene expression in colorectal cancer cells‐derived cancer stem‐like tumorspheres. ADVANCES IN DIGESTIVE MEDICINE 2021. [DOI: 10.1002/aid2.13223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Hua‐Ching Lin
- Division of Colorectal Surgery Chen Hsin General Hospital Taipei Taiwan
- Department of Healthcare Information and Management Ming Chuan University Taoyuan Taiwan
| | - Ai‐Sheng Ho
- Division of Gastroenterology Cheng Hsin General Hospital Taipei Taiwan
| | - Hsin‐Hung Huang
- Division of Gastroenterology Cheng Hsin General Hospital Taipei Taiwan
| | - Bi‐Ling Yang
- Division of Gastroenterology Cheng Hsin General Hospital Taipei Taiwan
| | - Bin‐Bin Shih
- Division of Gastroenterology Cheng Hsin General Hospital Taipei Taiwan
| | - Hsin‐Chi Lin
- Division of Gastroenterology Cheng Hsin General Hospital Taipei Taiwan
| | - Chun Yeh
- Division of Gastroenterology Cheng Hsin General Hospital Taipei Taiwan
| | - Chung‐Te Hsu
- Division of Gastroenterology Cheng Hsin General Hospital Taipei Taiwan
| | - Chun‐Chia Cheng
- Radiation Biology Research Center Institute for Radiological Research, Chang Gung University/Chang Gung Memorial Hospital at Linkou Taoyuan Taiwan
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20
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Xie G, Dong P, Chen H, Xu L, Liu Y, Ma Y, Zheng Y, Yang J, Zhou Y, Chen L, Shen L. Decreased expression of ATF3, orchestrated by β-catenin/TCF3, miR-17-5p and HOXA11-AS, promoted gastric cancer progression via increased β-catenin and CEMIP. Exp Mol Med 2021; 53:1706-1722. [PMID: 34728784 PMCID: PMC8639750 DOI: 10.1038/s12276-021-00694-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 06/09/2021] [Accepted: 08/24/2021] [Indexed: 01/04/2023] Open
Abstract
ATF3 has been reported to be dysregulated in various cancers and involved in various steps of tumorigenesis. However, the mechanisms underlying the abnormal expression of ATF3 and its biological function in gastric cancer (GC) have not been well investigated. Here, we report ATF3 as one of the key regulators of GC development and progression. Patients with low ATF3 expression had shorter survival and a poorer prognosis. In vitro and in vivo assays investigating ATF3 alterations revealed a complex integrated phenotype that affects cell growth and migration. Strikingly, high-throughput sequencing and microarray analysis of cells with ATF3 silencing or of ATF3-low GC tissues indicated alterations in the Wnt signaling pathway, focal adhesions and adherens junctions. Mechanistically, the expression of β-catenin and cell migration inducing hyaluronidase 1 (CEMIP) was significantly upregulated in GC cells with downregulated ATF3, which was synergistically repressed by the β-catenin/TCF3 signaling axis and noncoding RNA miR-17-5p and HOXA11-AS. In addition, we found that WDR5 expression was promoted by TCF3 and is involved in miR-17-5p and HOXA11-AS activation in GC cells. Taken together, our findings revealed the mechanism of ATF3 downregulation and its biological role in regulating the expression of Wnt signaling-related genes during GC progression, suggesting new informative biomarkers of malignancy and therapeutic directions for GC patients. New treatments for gastric cancer could involve controlling the activity of a regulatory gene and associated signaling pathway. Over-activation of the Wnt signaling pathway, which regulates many cellular functions, occurs in around half of gastric cancers. Further, the activating transcription factor 3 gene (ATF3) is thought to influence tumorigenesis, although its role in gastric cancer is unclear. Guohua Xie and co-workers at Shanghai Jiao Tong University, China, explored the function of ATF3 in human gastric cancer tissues. Patients with low ATF3 expression had poorer prognosis and shorter life expectancy. The team discovered that reduced expression of ATF3 triggered the increased expression of two of its target genes, which then altered Wnt signaling. Reduced ATF3 expression also boosted the invasiveness of gastric cancer cells. Initial results suggest that overexpression of ATF3 could suppress gastric cancer progression.
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Affiliation(s)
- Guohua Xie
- Department of Clinical Laboratory, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Ping Dong
- Department of General Surgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hui Chen
- Department of Clinical Laboratory, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ling Xu
- Department of Clinical Laboratory, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yi Liu
- Department of Clinical Laboratory, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yanhui Ma
- Department of Clinical Laboratory, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yingxia Zheng
- Department of Clinical Laboratory, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Junyao Yang
- Department of Clinical Laboratory, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yunlan Zhou
- Department of Clinical Laboratory, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lei Chen
- Department of General Surgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Lisong Shen
- Department of Clinical Laboratory, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China. .,Faculty of Medical Laboratory Sciences, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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21
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Mahmoud NN, Zakaria ZZ, Kheraldine H, Gupta I, Vranic S, Al-Asmakh M, Al Moustafa AE. The Effect of Surface-Modified Gold Nanorods on the Early Stage of Embryonic Development and Angiogenesis: Insight into the Molecular Pathways. Int J Mol Sci 2021; 22:11036. [PMID: 34681694 PMCID: PMC8537453 DOI: 10.3390/ijms222011036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 09/24/2021] [Accepted: 09/30/2021] [Indexed: 12/15/2022] Open
Abstract
Gold nanorods have been implicated in several biomedical applications. Herein, the effect of two surface-modified gold nanorods on the early stages of embryogenesis and angiogenesis was investigated using avian embryos at three days and their chorioallantoic membrane (CAM) at five days of incubation. We found that gold nanorods (GNR) modified with PEGylated phospholipid moiety show a high mortality rate in embryos after four days of exposure compared to GNR modified with PEGylated cholesterol moiety. Meanwhile, our data revealed that surface modified-GNR significantly inhibit the formation of new blood vessels in the treated CAM model after 48 h of exposure. Moreover, we report that surface-modified GNR significantly deregulate the expression of several genes implicated in cell proliferation, invasion, apoptosis, cellular energy metabolism, and angiogenesis. On the other hand, our data point out that GNR treatments can modulate the expression patterns of JNK1/2/3, NF-KB/p38, and MAPK, which could be the main molecular pathways of the nanorods in our experimental models.
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Affiliation(s)
- Nouf N. Mahmoud
- Faculty of Pharmacy, Al-Zaytoonah University of Jordan, Amman 11733, Jordan
- College of Medicine, QU Health, Qatar University, Doha 2713, Qatar;
| | - Zain Zaki Zakaria
- Biomedical Research Center, Qatar University, Doha 2713, Qatar; (Z.Z.Z.); (H.K.); (M.A.-A.)
- Biomedical and Pharmaceutical Research Unit, QU Health, Qatar University, Doha 2713, Qatar;
- Department of Biomedical Sciences, College of Health Sciences, QU Health, Qatar University, Doha 2713, Qatar
| | - Hadeel Kheraldine
- Biomedical Research Center, Qatar University, Doha 2713, Qatar; (Z.Z.Z.); (H.K.); (M.A.-A.)
| | - Ishita Gupta
- Biomedical and Pharmaceutical Research Unit, QU Health, Qatar University, Doha 2713, Qatar;
| | - Semir Vranic
- College of Medicine, QU Health, Qatar University, Doha 2713, Qatar;
- Biomedical and Pharmaceutical Research Unit, QU Health, Qatar University, Doha 2713, Qatar;
| | - Maha Al-Asmakh
- Biomedical Research Center, Qatar University, Doha 2713, Qatar; (Z.Z.Z.); (H.K.); (M.A.-A.)
- Biomedical and Pharmaceutical Research Unit, QU Health, Qatar University, Doha 2713, Qatar;
- Department of Biomedical Sciences, College of Health Sciences, QU Health, Qatar University, Doha 2713, Qatar
| | - Ala-Eddin Al Moustafa
- College of Medicine, QU Health, Qatar University, Doha 2713, Qatar;
- Biomedical Research Center, Qatar University, Doha 2713, Qatar; (Z.Z.Z.); (H.K.); (M.A.-A.)
- Biomedical and Pharmaceutical Research Unit, QU Health, Qatar University, Doha 2713, Qatar;
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22
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Oesch F, Fruth D, Hengstler JG, Fabian E, Berger FI, Landsiedel R. Enigmatic mechanism of the N-vinylpyrrolidone hepatocarcinogenicity in the rat. Arch Toxicol 2021; 95:3717-3744. [PMID: 34595563 PMCID: PMC8536644 DOI: 10.1007/s00204-021-03151-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 08/26/2021] [Indexed: 11/24/2022]
Abstract
N-vinyl pyrrolidone (NVP) is produced up to several thousand tons per year as starting material for the production of polymers to be used in pharmaceutics, cosmetics and food technology. Upon inhalation NVP was carcinogenic in the rat, liver tumor formation is starting already at the rather low concentration of 5 ppm. Hence, differentiation whether NVP is a genotoxic carcinogen (presumed to generally have no dose threshold for the carcinogenic activity) or a non-genotoxic carcinogen (with a potentially definable threshold) is highly important. In the present study, therefore, the existing genotoxicity investigations on NVP (all showing consistently negative results) were extended and complemented with investigations on possible alternative mechanisms, which also all proved negative. All tests were performed in the same species (rat) using the same route of exposure (inhalation) and the same doses of NVP (5, 10 and 20 ppm) as had been used in the positive carcinogenicity test. Specifically, the tests included an ex vivo Comet assay (so far not available) and an ex vivo micronucleus test (in contrast to the already available micronucleus test in mice here in the same species and by the same route of application as in the bioassay which had shown the carcinogenicity), tests on oxidative stress (non-protein-bound sulfhydryls and glutathione recycling test), mechanisms mediated by hepatic receptors, the activation of which had been shown earlier to lead to carcinogenicity in some instances (Ah receptor, CAR, PXR, PPARα). No indications were obtained for any of the investigated mechanisms to be responsible for or to contribute to the observed carcinogenicity of NVP. The most important of these exclusions is genotoxicity. Thus, NVP can rightfully be regarded and treated as a non-genotoxic carcinogen and threshold approaches to the assessment of this chemical are supported. However, the mechanism underlying the carcinogenicity of NVP in rats remains unclear.
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Affiliation(s)
- Franz Oesch
- Oesch-Tox Toxicological Consulting and Expert Opinions GmbH&CoKG, Rheinblick 21, 55263, Ingelheim, Germany.,Institute of Toxicology, Johannes Gutenberg University, 55131, Mainz, Germany
| | - Daniela Fruth
- Experimental Toxicology and Ecology, BASF SE, 67056, Ludwigshafen am Rhein, Germany.,Knoell Germany GmbH, Eastsite XII, Konrad-Zuse-Ring 25, 68163, Mannheim, Germany
| | - Jan G Hengstler
- Leibniz Research Centre for Working Environment and Human Factors (IfADo), University of Dortmund, Dortmund, Germany
| | - Eric Fabian
- Experimental Toxicology and Ecology, BASF SE, 67056, Ludwigshafen am Rhein, Germany
| | - Franz Ingo Berger
- Regulatory Toxicology Chemicals, BASF SE, 67056, Ludwigshafen am Rhein, Germany
| | - Robert Landsiedel
- Experimental Toxicology and Ecology, BASF SE, 67056, Ludwigshafen am Rhein, Germany.
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23
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Lu S, Wang XZ, He C, Wang L, Liang SP, Wang CC, Li C, Luo TF, Feng CS, Wang ZC, Chi GF, Ge PF. ATF3 contributes to brucine-triggered glioma cell ferroptosis via promotion of hydrogen peroxide and iron. Acta Pharmacol Sin 2021; 42:1690-1702. [PMID: 34112960 PMCID: PMC8463534 DOI: 10.1038/s41401-021-00700-w] [Citation(s) in RCA: 58] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 05/16/2021] [Indexed: 02/07/2023] Open
Abstract
Ferroptotic cell death is characterized by iron-dependent lipid peroxidation that is initiated by ferrous iron and H2O2 via Fenton reaction, in which the role of activating transcription factor 3 (ATF3) remains elusive. Brucine is a weak alkaline indole alkaloid extracted from the seeds of Strychnos nux-vomica, which has shown potent antitumor activity against various tumors, including glioma. In this study, we showed that brucine inhibited glioma cell growth in vitro and in vivo, which was paralleled by nuclear translocation of ATF3, lipid peroxidation, and increases of iron and H2O2. Furthermore, brucine-induced lipid peroxidation was inhibited or exacerbated when intracellular iron was chelated by deferoxamine (500 μM) or improved by ferric ammonium citrate (500 μM). Suppression of lipid peroxidation with lipophilic antioxidants ferrostatin-1 (50 μM) or liproxstatin-1 (30 μM) rescued brucine-induced glioma cell death. Moreover, knockdown of ATF3 prevented brucine-induced accumulation of iron and H2O2 and glioma cell death. We revealed that brucine induced ATF3 upregulation and translocation into nuclei via activation of ER stress. ATF3 promoted brucine-induced H2O2 accumulation via upregulating NOX4 and SOD1 to generate H2O2 on one hand, and downregulating catalase and xCT to prevent H2O2 degradation on the other hand. H2O2 then contributed to brucine-triggered iron increase and transferrin receptor upregulation, as well as lipid peroxidation. This was further verified by treating glioma cells with exogenous H2O2 alone. Moreover, H2O2 reversely exacerbated brucine-induced ER stress. Taken together, ATF3 contributes to brucine-induced glioma cell ferroptosis via increasing H2O2 and iron.
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Affiliation(s)
- Shan Lu
- Department of Neurosurgery, First Hospital of Jilin University, Changchun, 130021, China
- Research Center of Neuroscience, First Hospital of Jilin University, Changchun, 130021, China
| | - Xuan-Zhong Wang
- Department of Neurosurgery, First Hospital of Jilin University, Changchun, 130021, China
- Research Center of Neuroscience, First Hospital of Jilin University, Changchun, 130021, China
| | - Chuan He
- Department of Neurosurgery, First Hospital of Jilin University, Changchun, 130021, China
- Research Center of Neuroscience, First Hospital of Jilin University, Changchun, 130021, China
| | - Lei Wang
- Department of Neurosurgery, First Hospital of Jilin University, Changchun, 130021, China
- Research Center of Neuroscience, First Hospital of Jilin University, Changchun, 130021, China
| | - Shi-Peng Liang
- Department of Neurosurgery, First Hospital of Jilin University, Changchun, 130021, China
- Research Center of Neuroscience, First Hospital of Jilin University, Changchun, 130021, China
| | - Chong-Cheng Wang
- Department of Neurosurgery, First Hospital of Jilin University, Changchun, 130021, China
- Research Center of Neuroscience, First Hospital of Jilin University, Changchun, 130021, China
| | - Chen Li
- Department of Neurosurgery, First Hospital of Jilin University, Changchun, 130021, China
- Research Center of Neuroscience, First Hospital of Jilin University, Changchun, 130021, China
| | - Tian-Fei Luo
- Research Center of Neuroscience, First Hospital of Jilin University, Changchun, 130021, China
- Department of Neurology, First Hospital of Jilin University, Changchun, 130021, China
| | - Chun-Sheng Feng
- Department of Anesthesiology, First Hospital of Jilin University, Changchun, 130021, China
| | - Zhen-Chuan Wang
- Department of Neurosurgery, First Hospital of Jilin University, Changchun, 130021, China
- Research Center of Neuroscience, First Hospital of Jilin University, Changchun, 130021, China
| | - Guang-Fan Chi
- Key Laboratory of Pathobiology, Ministry of Education, Jilin University, Changchun, 130021, China
| | - Peng-Fei Ge
- Department of Neurosurgery, First Hospital of Jilin University, Changchun, 130021, China.
- Research Center of Neuroscience, First Hospital of Jilin University, Changchun, 130021, China.
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24
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Bhushan A, Kumari R, Srivastava T. Scouting for common genes in the heterogenous hypoxic tumor microenvironment and their validation in glioblastoma. 3 Biotech 2021; 11:451. [PMID: 34631352 DOI: 10.1007/s13205-021-02987-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Accepted: 09/04/2021] [Indexed: 12/17/2022] Open
Abstract
Investigating the therapeutic and prognostic potential of genes in the heterogeneous hypoxic niche of glioblastoma. We have analyzed RNA expression of U87MG cells cultured in hypoxia compared to normoxia. Common differentially expressed genes (DEGs) from GSE45301 and GSE18494 and their functional enrichment was performed using MetaScape and PANTHER. Hub genes and their ontology were identified using MCode cytoHubba and ClueGO and validated with GlioVis, Oncomine, HPA and PrognoScan. Using the GEO2R analysis of GSE45301 and GSE18494 datasets, we have found a total of 246 common DEGs (180 upregulated and 66 downregulated) and identified 2 significant modules involved in ribosome biogenesis and TNF signaling. Meta-analysis of key genes of each module in cytoHubba identified 17 hub genes (ATF3, BYSL, DUSP1, EGFR, JUN, ETS1, LYAR, NIP7, NOLC1, NOP2, NOP56, PNO1, RRS1, TNFAIP3, TNFRSF1B, UTP15, VEGFA). Of the 17 hub genes, ATF3, BYSL, EGFR, JUN, NIP7, NOLC1, PNO1, RRS1, TNFAIP3 and VEGFA were identified as hypoxia signatures associated with poor prognosis in Glioma. Ribosome biogenesis emerged as a vital contender of possible therapeutic potential with BYSL, NIP7, NOLC1, PNO1 and RRS1 showing prognostic value. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s13205-021-02987-2.
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Affiliation(s)
- Ashish Bhushan
- Department of Genetics, University of Delhi South Campus, Benito Juarez Road, New Delhi, 110021 India
| | - Ranbala Kumari
- National Institute of Pathology (ICMR), Safdarjung Hospital Campus, New Delhi, India
| | - Tapasya Srivastava
- Department of Genetics, University of Delhi South Campus, Benito Juarez Road, New Delhi, 110021 India
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25
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Youns M, Askoura M, Abbas HA, Attia GH, Khayyat AN, Goda RM, Almalki AJ, Khafagy ES, Hegazy WAH. Celastrol Modulates Multiple Signaling Pathways to Inhibit Proliferation of Pancreatic Cancer via DDIT3 and ATF3 Up-Regulation and RRM2 and MCM4 Down-Regulation. Onco Targets Ther 2021; 14:3849-3860. [PMID: 34194230 PMCID: PMC8238076 DOI: 10.2147/ott.s313933] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 06/13/2021] [Indexed: 12/17/2022] Open
Abstract
Background Pancreatic cancer is one of the most serious and lethal human cancers with a snowballing incidence around the world. The natural product celastrol has also been widely documented as a potent anti-inflammatory, anti-angiogenic, and anti-oxidant. Purpose To elucidate the antitumor effect of celastrol on pancreatic cancer cells and its modulatory role on whole genome expression. Methods The antitumor activity of celastrol on a panel of pancreatic cancer cells has been evaluated by Sulforhodamine B assay. Caspase 3/7 and histone-associated DNA fragments assays were done for apoptosis measurement. Additionally, prostaglandin (PGE2) inhibition was evaluated. Moreover, a microarray gene expression profiling was carried out to detect possible key players that modulate the antitumor effects of celastrol on cells of pancreatic cancer. Results Our findings indicated that celastrol suppresses the cellular growth of pancreatic cancer cells, induces apoptosis, and inhibits PGE2 production. Celastrol modulated many signaling genes and its cytotoxic effect was mainly mediated via over-expression of ATF3 and DDIT3, and down-expression of RRM2 and MCM4. Conclusion The current study aims to be a starting point to generate a hypothesis on the most significant regulatory genes and for a full dissection of the celastrol possible effects on each single gene to prevent the pancreatic cancer growth.
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Affiliation(s)
- Mahmoud Youns
- Department of Biochemistry and Molecular Biology, Faculty of Pharmacy, Helwan University, Cairo, Egypt.,Department of Functional Genome Analysis, German Cancer Research Center (DKFZ), Heidelberg, 69120, Germany
| | - Momen Askoura
- Department of Microbiology and Immunology, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt
| | - Hisham A Abbas
- Department of Microbiology and Immunology, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt
| | - Gouda H Attia
- Department of Pharmacognosy, Faculty of Pharmacy, Kafr El-Shiekh University, Kafr El-Shiekh, Egypt.,Department of Pharmacognosy, College of Pharmacy, Najran University, Najran, Saudi Arabia
| | - Ahdab N Khayyat
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Reham M Goda
- Department of Microbiology and Biotechnology, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Mansoura, Egypt
| | - Ahmad J Almalki
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - El-Sayed Khafagy
- Department of Pharmaceutics, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-kharj, 11942, Saudi Arabia.,Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Suez Canal University, Ismailia, 41552, Egypt
| | - Wael A H Hegazy
- Department of Microbiology and Immunology, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt
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26
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Fu D, Wang C, Yu L, Yu R. Induction of ferroptosis by ATF3 elevation alleviates cisplatin resistance in gastric cancer by restraining Nrf2/Keap1/xCT signaling. Cell Mol Biol Lett 2021; 26:26. [PMID: 34098867 PMCID: PMC8186082 DOI: 10.1186/s11658-021-00271-y] [Citation(s) in RCA: 120] [Impact Index Per Article: 40.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 05/25/2021] [Indexed: 02/08/2023] Open
Abstract
Background Currently, resistance against cisplatin (DDP) is a frequent problem for the success of advanced gastric carcinoma (GC) chemotherapy. Here, we sought to investigate the function of activating transcription factor 3 (ATF3) n GC chemoresistance. Methods Expression of ATF3 was determined in GC cell lines (MNK45, SGC7901, and BGC823) and cisplatin (DDP)-resistant cells (SGC7901/DDP and BGC823/DDP). Biological informatics was performed to analyze ATF3 expression and prognosis in GC patients. Cisplatin resistance was evaluated. Ferroptosis was detected after ATF3 transfection of cells. The underlying molecular mechanism was also investigated. Results Transcripts of ATF3 were decreased in GC cells and GC tissues. Kaplan–Meier plotter analysis revealed that ATF3 expression was positively related to the overall survival of GC patients. In particular, lower levels of ATF3 were observed in cisplatin-resistant SGC7901/DDP and BGC823/DDP relative to their parental cells. Notably, ATF3 elevation sensitized cisplatin-resistant cells to cisplatin. Mechanically, compared with parental cells, SGC7901/DDP and BGC823/DDP cells exhibited lower ferroptosis evident by lower ROS, MDA and lipid peroxidation and higher intracellular GSH levels. However, ATF3 elevated ferroptosis in SGC7901/DDP and BGC823/DDP cells. Intriguingly, ATF3 overexpression together with ferroptosis activator erastin or RSL3 treatment further enhanced ferroptosis and cisplatin resistance; however, the ferroptosis suppressor liproxstatin-1 reversed the function of ATF3 in ferroptosis and cisplatin resistance. Additionally, cisplatin-resistant cells exhibited stronger activation of Nrf2/Keap1/xCT signaling relative to parental cells, which was restrained by ATF3 up-regulation. Importantly, restoring Nrf2 signaling overturned ATF3-mediated ferroptosis and cisplatin resistance. Conclusion ATF3 may sensitize GC cells to cisplatin by induction of ferroptosis via blocking Nrf2/Keap1/xCT signaling, supporting a promising therapeutic approach for overcoming chemoresistance in GC.
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Affiliation(s)
- Dazhi Fu
- Department of General Surgery, First Affiliated Hospital of China Medical University, Liaoning Province Shenyang City Heping District Nanjingbei Road 155, Shenyang, 110001, Liaoning, People's Republic of China.
| | - Chunxiao Wang
- Department of General Surgery, Liaoning Health Industry Group, Benxi Iron & Steel Group, General Hospital, Benxi, 117000, Liaoning, People's Republic of China
| | - Lei Yu
- Department of General Surgery, First Affiliated Hospital of China Medical University, Liaoning Province Shenyang City Heping District Nanjingbei Road 155, Shenyang, 110001, Liaoning, People's Republic of China
| | - Rui Yu
- Department of General Surgery, First Affiliated Hospital of China Medical University, Liaoning Province Shenyang City Heping District Nanjingbei Road 155, Shenyang, 110001, Liaoning, People's Republic of China
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27
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Zu T, Wang D, Xu S, Lee CAA, Zhen E, Yoon CH, Abarzua P, Wang S, Frank NY, Wu X, Lian CG, Murphy GF. ATF-3 expression inhibits melanoma growth by downregulating ERK and AKT pathways. J Transl Med 2021; 101:636-647. [PMID: 33299127 PMCID: PMC8091967 DOI: 10.1038/s41374-020-00516-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 11/02/2020] [Accepted: 11/03/2020] [Indexed: 11/09/2022] Open
Abstract
Activating transcription factor 3 (ATF-3), a cyclic AMP-dependent transcription factor, has been shown to play a regulatory role in melanoma, although its function during tumor progression remains unclear. Here, we demonstrate that ATF-3 exhibits tumor suppressive function in melanoma. Specifically, ATF-3 nuclear expression was significantly diminished with melanoma progression from nevi to primary to metastatic patient melanomas, correlating low expression with poor prognosis. Significantly low expression of ATF-3 was also found in cultured human metastatic melanoma cell lines. Importantly, overexpression of ATF-3 in metastatic melanoma cell lines significantly inhibited cell growth, migration, and invasion in vitro; as well as abrogated tumor growth in a human melanoma xenograft mouse model in vivo. RNA sequencing analysis revealed downregulation of ERK and AKT pathways and upregulation in apoptotic-related genes in ATF-3 overexpressed melanoma cell lines, which was further validated by Western-blot analysis. In summary, this study demonstrated that diminished ATF-3 expression is associated with melanoma virulence and thus provides a potential target for novel therapies and prognostic biomarker applications.
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Affiliation(s)
- Tingjian Zu
- Department of Tissue Engineering and Regeneration, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shangdong, China
- School of Stomatology, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an, Shangdong, China
- Department of Pathology, Program in Dermatopathology, Brigham and Women's Hospital, Boston, MA, USA
| | - Diana Wang
- Department of Pathology, Program in Dermatopathology, Brigham and Women's Hospital, Boston, MA, USA
- Department of Oral Medicine, Infection, and Immunity, Harvard School of Dental Medicine, Boston, MA, USA
| | - Shuyun Xu
- Department of Pathology, Program in Dermatopathology, Brigham and Women's Hospital, Boston, MA, USA
| | - Catherine A A Lee
- Division of Genetics, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Ellen Zhen
- Department of Pathology, Program in Dermatopathology, Brigham and Women's Hospital, Boston, MA, USA
| | - Charles H Yoon
- Department of Surgery, Brigham and Women's Hospital, Boston, MA, USA
| | - Phammela Abarzua
- Department of Pathology, Program in Dermatopathology, Brigham and Women's Hospital, Boston, MA, USA
| | - Shuangshuang Wang
- Department of Tissue Engineering and Regeneration, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shangdong, China
| | - Natasha Y Frank
- Division of Genetics, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Department of Medicine, VA Boston Healthcare System, Boston, MA, USA
- Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA
| | - Xunwei Wu
- Department of Tissue Engineering and Regeneration, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shangdong, China.
- Cutaneous Biology Research Center, Massachusetts General Hospital, Boston, MA, USA.
| | - Christine G Lian
- Department of Pathology, Program in Dermatopathology, Brigham and Women's Hospital, Boston, MA, USA.
| | - George F Murphy
- Department of Pathology, Program in Dermatopathology, Brigham and Women's Hospital, Boston, MA, USA.
- Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA.
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MicroRNA-183-5p contributes to malignant progression through targeting PDCD4 in human hepatocellular carcinoma. Biosci Rep 2021; 40:226717. [PMID: 33078826 PMCID: PMC7601345 DOI: 10.1042/bsr20201761] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 09/21/2020] [Accepted: 10/20/2020] [Indexed: 12/17/2022] Open
Abstract
Hepatocellular carcinoma (HCC) remains one of the most common malignant tumors worldwide. The present study aimed to investigate the biological role of microRNA-183-5p (miR-183-5p), a novel tumor-related microRNA (miRNA), in HCC and illuminate the possible molecular mechanisms. The expression patterns of miR-183-5p in clinical samples were characterized using qPCR analysis. Kaplan–Meier survival curve was applied to evaluate the correlation between miR-183-5p expression and overall survival of HCC patients. Effects of miR-183-5p knockdown on HCC cell proliferation, apoptosis, migration and invasion capabilities were determined via Cell Counting Kit-8 (CCK8) assays, flow cytometry, scratch wound healing assays and Transwell invasion assays, respectively. Mouse neoplasm transplantation models were established to assess the effects of miR-183-5p knockdown on tumor growth in vivo. Bioinformatics analysis, dual-luciferase reporter assays and rescue assays were performed for mechanistic researches. Results showed that miR-183-5p was highly expressed in tumorous tissues compared with adjacent normal tissues. Elevated miR-183-5p expression correlated with shorter overall survival of HCC patients. Moreover, miR-183-5p knockdown significantly suppressed proliferation, survival, migration and invasion of HCC cells compared with negative control treatment. Consistently, miR-183-5p knockdown restrained tumor growth in vivo. Furthermore, programmed cell death factor 4 (PDCD4) was identified as a direct target of miR-183-5p. Additionally, PDCD4 down-regulation was observed to abrogate the inhibitory effects of miR-183-5p knockdown on malignant phenotypes of HCC cells. Collectively, our data suggest that miR-183-5p may exert an oncogenic role in HCC through directly targeting PDCD4. The current study may offer some new insights into understanding the role of miR-183-5p in HCC.
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29
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Zhang G, Dai S, Chen Y, Wang H, Chen T, Shu Q, Chen S, Shou L, Cai X. Aqueous extract of Taxus chinensis var. mairei regulates the Hippo-YAP pathway and promotes apoptosis of non-small cell lung cancer via ATF3 in vivo and in vitro. Biomed Pharmacother 2021; 138:111506. [PMID: 33740524 DOI: 10.1016/j.biopha.2021.111506] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 03/10/2021] [Accepted: 03/11/2021] [Indexed: 01/21/2023] Open
Abstract
Taxus chinensis var. mairei (TC) is a traditional Chinese ornamental and medicinal plant, the leaves and twigs of which are used in anti-tumor therapy in southern China. However, the mechanism and role of aqueous extract of TC (AETC) in promoting apoptosis in non-small cell lung cancer (NSCLC) cell lines has remained unclear. In this research, we observed that AETC inhibited the suppression of the proliferation of NSCLC cells and highly inhibited the proliferation of NCI-1975 cells. Furthermore, AETC exerted minimal inhibitory effects on normal human lung epithelial cells and induced apoptosis in NCI-1975 and A549 cells. The findings of RNA sequencing, qRT-PCR, western blotting, and immunofluorescence showed that upregulated ATF3 expression and ATF3 gene knockdown, respectively, increased and decreased the anti-tumor effects of AETC associated with Hippo pathway inhibition and decreased YAP degradation. Furthermore, AETC reduced the tumor volume and weight in nude mice; upregulated ATF3, p-MOB1, and p-YAP (Ser397); and actively regulated cleaved PARP and cleaved caspase-9/8/3. These findings suggest that AETC induced NSCLC cell apoptosis via the ATF3-Hippo-YAP pathway in vivo and in vitro. We also found that AETC is non-toxic to normal cells and nude mice. Thus, AETC might represent a promising adjuvant for anti-tumor therapy against NSCLC.
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MESH Headings
- A549 Cells
- Activating Transcription Factor 3/antagonists & inhibitors
- Activating Transcription Factor 3/metabolism
- Adaptor Proteins, Signal Transducing/antagonists & inhibitors
- Adaptor Proteins, Signal Transducing/metabolism
- Animals
- Carcinoma, Non-Small-Cell Lung/drug therapy
- Carcinoma, Non-Small-Cell Lung/metabolism
- Carcinoma, Non-Small-Cell Lung/pathology
- Dose-Response Relationship, Drug
- Drugs, Chinese Herbal/isolation & purification
- Drugs, Chinese Herbal/pharmacology
- Drugs, Chinese Herbal/therapeutic use
- Female
- Hippo Signaling Pathway
- Humans
- Lung Neoplasms/drug therapy
- Lung Neoplasms/metabolism
- Lung Neoplasms/pathology
- Mice
- Mice, Inbred BALB C
- Protein Serine-Threonine Kinases/antagonists & inhibitors
- Protein Serine-Threonine Kinases/metabolism
- Signal Transduction/drug effects
- Signal Transduction/physiology
- Taxus
- Water/pharmacology
- Xenograft Model Antitumor Assays/methods
- YAP-Signaling Proteins
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Affiliation(s)
- Gaochenxi Zhang
- The First Clinical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Shuying Dai
- The First Clinical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yiyi Chen
- The First Clinical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Haibin Wang
- Central Laboratory, the First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Ting Chen
- Department of Neurology, the Second People's Hospital of Fuyang City, Hangzhou, China
| | - Qijin Shu
- The First Clinical College, Zhejiang Chinese Medical University, Hangzhou, China; Department of Oncology, the First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China.
| | - Shuyi Chen
- Department of Oncology, the First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Liumei Shou
- Department of Oncology, the First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Xiaolu Cai
- The First Clinical College, Zhejiang Chinese Medical University, Hangzhou, China
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Chen J, Zhang X, Xiao X, Ding Y, Zhang W, Shi M, Yang J, Liu Y, Han Y. Xiao-Ai-Ping Injection Enhances Effect of Paclitaxel to Suppress Breast Cancer Proliferation and Metastasis via Activating Transcription Factor 3. Integr Cancer Ther 2021; 19:1534735420906463. [PMID: 32248718 PMCID: PMC7136938 DOI: 10.1177/1534735420906463] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Chemotherapy is an effective treatment for invasive breast cancer. Paradoxically, many recently published findings showed that the first-line chemotherapeutic agent paclitaxel (PTX) showed pro-metastatic effects in the progress of treating breast cancer. Xiao-Ai-Ping (XAP) injection, composed of a traditional herbal medicine, Marsdenia tenacissimae extract, is known to exert antitumor effects on various cancers. However, there are few experimental studies on breast cancer. The underlying mechanism of the antitumor effect of XAP combined with chemotherapy agents has not been fully understood. In the present study, we sought to find the antitumor effects of XAP combined with PTX in vitro and in vivo. The data demonstrated that the combination of XAP with PTX resulted in remarkable enhancement of the pro-apoptotic, migration-inhibiting, and anti-invasive effects of PTX in vitro. Significantly, further study showed the overexpression of ATF3 in PTX-treated cell, while XAP counteracted the change of ATF3 induced by PTX. Moreover, it showed that combination treatment could promote the inhibition of tumor growth in MDA-MB-231 cell xenograft mouse model. Compared with PTX treatment, the downregulation of ATF3 indicated that ATF3 played a pivotal role in the combination of XAP with PTX to exert a synergistic effect. Overall, it is expected that PTX combined with XAP may serve as an effective agent for antitumor treatment, and dampening ATF3 maybe a potential strategy to improve the efficacy of PTX.
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Affiliation(s)
- Junjun Chen
- Shanghai Jiao Tong University Affiliated to Sixth People's Hospital, Shanghai, PR China.,Shanghai Sixth People's Hospital East Affiliated to Shanghai University of Medicine & Health Sciences, Shanghai, PR China
| | - Xiangqi Zhang
- Shanghai Jiao Tong University Affiliated to Sixth People's Hospital, Shanghai, PR China.,Shanghai Sixth People's Hospital East Affiliated to Shanghai University of Medicine & Health Sciences, Shanghai, PR China
| | - Xiao Xiao
- Shanghai Sixth People's Hospital East Affiliated to Shanghai University of Medicine & Health Sciences, Shanghai, PR China
| | - Yawei Ding
- Shanghai Sixth People's Hospital East Affiliated to Shanghai University of Medicine & Health Sciences, Shanghai, PR China.,Shanghai Ocean University, Shanghai, PR China
| | - Wei Zhang
- Shanghai Sixth People's Hospital East Affiliated to Shanghai University of Medicine & Health Sciences, Shanghai, PR China.,Shanghai Ocean University, Shanghai, PR China
| | - Meizhi Shi
- Shanghai Jiao Tong University Affiliated to Sixth People's Hospital, Shanghai, PR China.,Shanghai Sixth People's Hospital East Affiliated to Shanghai University of Medicine & Health Sciences, Shanghai, PR China
| | - Jiao Yang
- Shanghai Jiao Tong University Affiliated to Sixth People's Hospital, Shanghai, PR China.,Shanghai Sixth People's Hospital East Affiliated to Shanghai University of Medicine & Health Sciences, Shanghai, PR China
| | - Ying Liu
- Shanghai Jiao Tong University Affiliated to Sixth People's Hospital, Shanghai, PR China.,Shanghai Sixth People's Hospital East Affiliated to Shanghai University of Medicine & Health Sciences, Shanghai, PR China
| | - Yonglong Han
- Shanghai Jiao Tong University Affiliated to Sixth People's Hospital, Shanghai, PR China.,Shanghai Sixth People's Hospital East Affiliated to Shanghai University of Medicine & Health Sciences, Shanghai, PR China
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31
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Lou S, Li T, Kong X, Zhang J, Liu J, Lee D, Gerstein M. TopicNet: a framework for measuring transcriptional regulatory network change. Bioinformatics 2021; 36:i474-i481. [PMID: 32657410 PMCID: PMC7355251 DOI: 10.1093/bioinformatics/btaa403] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Motivation Recently, many chromatin immunoprecipitation sequencing experiments have been carried out for a diverse group of transcription factors (TFs) in many different types of human cells. These experiments manifest large-scale and dynamic changes in regulatory network connectivity (i.e. network ‘rewiring’), highlighting the different regulatory programs operating in disparate cellular states. However, due to the dense and noisy nature of current regulatory networks, directly comparing the gains and losses of targets of key TFs across cell states is often not informative. Thus, here, we seek an abstracted, low-dimensional representation to understand the main features of network change. Results We propose a method called TopicNet that applies latent Dirichlet allocation to extract functional topics for a collection of genes regulated by a given TF. We then define a rewiring score to quantify regulatory-network changes in terms of the topic changes for this TF. Using this framework, we can pinpoint particular TFs that change greatly in network connectivity between different cellular states (such as observed in oncogenesis). Also, incorporating gene expression data, we define a topic activity score that measures the degree to which a given topic is active in a particular cellular state. And we show how activity differences can indicate differential survival in various cancers. Availability and Implementation The TopicNet framework and related analysis were implemented using R and all codes are available at https://github.com/gersteinlab/topicnet. Supplementary information Supplementary data are available at Bioinformatics online.
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Affiliation(s)
- Shaoke Lou
- Department of Molecular Biophysics and Biochemistry
| | - Tianxiao Li
- Program in Computational Biology and Bioinformatics, Yale University, New Haven, CT 06520, USA
| | | | - Jing Zhang
- Department of Molecular Biophysics and Biochemistry
| | - Jason Liu
- Department of Molecular Biophysics and Biochemistry
| | - Donghoon Lee
- Department of Molecular Biophysics and Biochemistry
| | - Mark Gerstein
- Department of Molecular Biophysics and Biochemistry
- To whom correspondence should be addressed. E-mail:
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32
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Wang J, Wang CY. Integrated miRNA and mRNA omics reveal the anti-cancerous mechanism of Licochalcone B on Human Hepatoma Cell HepG2. Food Chem Toxicol 2021; 150:112096. [PMID: 33647349 DOI: 10.1016/j.fct.2021.112096] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 02/18/2021] [Accepted: 02/22/2021] [Indexed: 12/24/2022]
Abstract
To unravel the potential of Licochalcone B as an anti-tumour phytochemical agent and evaluate its underlying mechanisms, we analyzed the mRNAs and miRNAs expression profiles of HepG2 cells in response to Licochalcone B (120 μM). mRNA and miRNA expression libraries were conducted and functional analysis for differential expression mRNAs was carried out utilizing Clue GO. We found 763 Licochalcone B -responsive differently expressed genes, among them, 572 mRNAs were up-regulated and 191 mRNAs were down-regulated, many of which were related to the MAPK signaling pathway. A protein-protein interaction network was constructed to discover the hub genes, and IL6, FOS, JUN, NOTCH1, UBC, UBB, CXCL8, CDKN1A, IL1B, ATF3, and GATA3 genes were screened out. Additionally, miRNAs engaged in Licochalcone B -mediated regulation on HepG2 cells were also studied. 85 differential expression miRNAs were identified, including 39 up-regulated miRNAs and 46 down-regulated miRNAs. Co-expression of miRNA-mRNA network was created and two key miRNAs (hsa-miR-29b-3p and hsa-miR-96-5p) were identified. These recognized key genes, miRNA, and the miRNA-mRNA regulatory network may provide clues to understand the molecular mechanism of Licochalcone B as an apoptotic inducer which may offer hint for its application as a functional food component.
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Affiliation(s)
- Jun Wang
- School of Biological Food and Environment, Hefei University, Hefei, 230601, China.
| | - Chu-Yan Wang
- School of Biological Food and Environment, Hefei University, Hefei, 230601, China.
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Wang L, Li C, Guan C, Zhang Y, Yang C, Zhao L, Luan H, Zhou B, Che L, Wang Y, Zhang W, Zhang H, Man X, Jiang W, Xu Y. Nicotiflorin attenuates cell apoptosis in renal ischemia-reperfusion injury through activating transcription factor 3. Nephrology (Carlton) 2021; 26:358-368. [PMID: 33295061 DOI: 10.1111/nep.13841] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 11/23/2020] [Accepted: 12/03/2020] [Indexed: 12/22/2022]
Abstract
INTRODUCTION Nicotiflorin is the main characteristic component of Nymphaea candida, which is a natural product that reportedly ameliorates acute injury of the liver and cerebral cortex, but the effect of nicotiflorin on acute kidney injury (AKI) remains unknown. This study aimed to investigate the effects of nicotiflorin on ischaemia/reperfusion (I/R) AKI and the associated mechanisms. METHODS We performed both (a) in vivo experiments with C57BL/6 mice with bilateral renal pedicles clamped for 45 minutes and (b) in vitro experiments with human kidney epithelial cells (HK-2) exposed to hypoxia/reoxygenation to mimic I/R injury to study the role of nicotiflorin in AKI. RESULTS In vivo, nicotiflorin administration exerted protective effects on renal injury, as demonstrated by reductions in the levels of caspase3 and Bad (P < .05), the upregulation of Bcl-2 expression (P < .05) and improved renal histologic changes, which suggested that nicotiflorin can alleviate I/R injury and cell apoptosis. In vitro, nicotiflorin at a concentration of 75 μg/mL protected cells from hypoxia, which further confirmed that nicotiflorin exerts beneficial effects on hypoxia/reoxygenation. Through computational molecular docking, we found that activating transcription factor 3 (ATF3) exhibits a robust interaction with nicotiflorin with a simulated binding energy of -9.2°. We verified the interaction of nicotiflorin with ATF3 in HK-2 cells, and found that nicotiflorin reduced the apoptosis of HK-2 through ATF3. CONCLUSION Based on the above-described results, nicotiflorin appears to have a beneficial impact on deteriorated renal function, as demonstrated using an experimental I/R model. The underlying mechanisms of nicotiflorin might inhibit HK-2 cell apoptosis through ATF3.
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Affiliation(s)
- Lin Wang
- Department of Nephrology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Chenyu Li
- Department of Nephrology, The Affiliated Hospital of Qingdao University, Qingdao, China.,Division of Nephrology, Department of Medicine IV, Hospital of the Ludwig Maximilian University of Munich, Munich, Germany
| | - Chen Guan
- Department of Nephrology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yue Zhang
- Department of Nephrology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Chengyu Yang
- Department of Nephrology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Long Zhao
- Department of Nephrology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Hong Luan
- Department of Nephrology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Bin Zhou
- Department of Nephrology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Lin Che
- Department of Nephrology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yanfei Wang
- Department of Nephrology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Wei Zhang
- Department of Nephrology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Hui Zhang
- Department of Nephrology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Xiaofei Man
- Department of Nephrology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Wei Jiang
- Department of Nephrology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yan Xu
- Department of Nephrology, The Affiliated Hospital of Qingdao University, Qingdao, China
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Xu L, Zu T, Li T, Li M, Mi J, Bai F, Liu G, Wen J, Li H, Brakebusch C, Wang X, Wu X. ATF3 downmodulates its new targets IFI6 and IFI27 to suppress the growth and migration of tongue squamous cell carcinoma cells. PLoS Genet 2021; 17:e1009283. [PMID: 33539340 PMCID: PMC7888615 DOI: 10.1371/journal.pgen.1009283] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 02/17/2021] [Accepted: 11/18/2020] [Indexed: 01/16/2023] Open
Abstract
Activating transcription factor 3 (ATF3) is a key transcription factor involved in regulating cellular stress responses, with different expression levels and functions in different tissues. ATF3 has also been shown to play crucial roles in regulating tumor development and progression, however its potential role in oral squamous cell carcinomas has not been fully explored. In this study, we examined biopsies of tongue squamous cell carcinomas (TSCCs) and found that the nuclear expression level of ATF3 correlated negatively with the differentiation status of TSCCs, which was validated by analysis of the ATGC database. By using gain- or loss- of function analyses of ATF3 in four different TSCC cell lines, we demonstrated that ATF3 negatively regulates the growth and migration of human TSCC cells in vitro. RNA-seq analysis identified two new downstream targets of ATF3, interferon alpha inducible proteins 6 (IFI6) and 27 (IFI27), which were upregulated in ATF3-deleted cells and were downregulated in ATF3-overexpressing cells. Chromatin immunoprecipitation assays showed that ATF3 binds the promoter regions of the IFI6 and IFI27 genes. Both IFI6 and IFI27 were highly expressed in TSCC biopsies and knockdown of either IFI6 or IFI27 in TSCC cells blocked the cell growth and migration induced by the deletion of ATF3. Conversely, overexpression of either IFI6 or IFI27 counteracted the inhibition of TSCC cell growth and migration induced by the overexpression of ATF3. Finally, an in vivo study in mice confirmed those in vitro findings. Our study suggests that ATF3 plays an anti-tumor function in TSCCs through the negative regulation of its downstream targets, IFI6 and IFI27. Activating transcription factor 3 (ATF3), a stress response gene, has been shown to play either tumor promoting or tumor suppressing functions depending on the type of tumor cell and the stromal context. Here we discovered that ATF3 plays an anti-tumor role in tongue squamous cell carcinoma (TSCC) cells through the transcriptional suppression of its new downstream targets interferon alpha inducible proteins 6 (IFI6) and 27 (IFI27). This finding contributes to understanding how ATF3, a transcriptional repressor, can target specific downstream genes in different tumor cells to play anti-tumor or pro-tumor functions. A thorough understanding of ATF3 functions and its downstream signaling pathways provides a potential approach to develop new therapeutics for the treatment of tumors such as TSCCs.
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Affiliation(s)
- Lin Xu
- Department of Tissue Engineering and Regeneration, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration and Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong, China
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Shandong, China
- Department of Orthodontics, Liaocheng People’s Hospital, Liaocheng, Shandong, China
- Precision Biomedical Key Laboratory, Liaocheng People’s Hospital, Liaocheng, Shandong, China
| | - Tingjian Zu
- Department of Tissue Engineering and Regeneration, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration and Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong, China
- School of Stomatology, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai’an, Shandong, China
| | - Tao Li
- Department of Tissue Engineering and Regeneration, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration and Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong, China
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Shandong, China
| | - Min Li
- Precision Biomedical Key Laboratory, Liaocheng People’s Hospital, Liaocheng, Shandong, China
| | - Jun Mi
- Department of Tissue Engineering and Regeneration, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration and Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong, China
| | - Fuxiang Bai
- Department of Tissue Engineering and Regeneration, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration and Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong, China
| | - Guanyi Liu
- Department of Tissue Engineering and Regeneration, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration and Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong, China
| | - Jie Wen
- Department of Tissue Engineering and Regeneration, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration and Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong, China
| | - Hui Li
- Department of Hematology, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Cord Brakebusch
- Biotech Research and Innovation Centre (BRIC), University of Copenhagen, Ole Maaløes Vej 5, Copenhagen, Denmark
| | - Xuxia Wang
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Shandong, China
- * E-mail: (XW); (XW)
| | - Xunwei Wu
- Department of Tissue Engineering and Regeneration, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration and Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong, China
- * E-mail: (XW); (XW)
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35
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Li L, Song S, Fang X, Cao D. Role of ATF3 as a prognostic biomarker and correlation of ATF3 expression with macrophage infiltration in hepatocellular carcinoma. BMC Med Genomics 2021; 14:8. [PMID: 33407456 PMCID: PMC7789720 DOI: 10.1186/s12920-020-00852-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Accepted: 12/08/2020] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND The abnormal expression of activating transcription factor 3 (ATF3), a member of the basic leucine zipper (bZIP) family of transcription factors, is associated with carcinogenesis. However, the expression pattern and exact role of ATF3 in the development and progression of hepatocellular carcinoma (HCC) remain unclear. METHODS We used UALCAN, ONCOMINE, Kaplan-Meier plotter, and cBioPortal databases to investigate the prognostic value of ATF3 expression in HCC. RESULTS ATF3 was found to be expressed at low levels in multiple HCC tumor tissues. Moreover, low ATF3 expression was significantly associated with clinical cancer stage and pathological tumor grade in patients with HCC. Therefore, low expression of ATF3 was significantly associated with poor overall survival in patients with HCC. Functional network analysis showed that ATF3 regulates cytokine receptors and signaling pathways via various cancer-related kinases, miRNAs, and transcription factors. ATF3 expression was found to be correlated with macrophage infiltration levels and with macrophage immune marker sets in HCC patients. CONCLUSIONS Using data mining methods, we clarified the role of ATF3 expression and related regulatory networks in HCC, laying a foundation for further functional research. Future research will validate our findings and establish clinical applications of ATF3 in the diagnosis and treatment of HCC.
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Affiliation(s)
- Lijuan Li
- Department of Laboratory Medicine, Guangdong Second Provincial General Hospital, No. 466 Xingang Middle Road, Haizhu District, Guangzhou, 510317, Guangdong Province, China
| | - Shaohua Song
- Department of Laboratory Medicine, Guangdong Second Provincial General Hospital, No. 466 Xingang Middle Road, Haizhu District, Guangzhou, 510317, Guangdong Province, China
| | - Xiaoling Fang
- Department of Laboratory Medicine, Guangdong Second Provincial General Hospital, No. 466 Xingang Middle Road, Haizhu District, Guangzhou, 510317, Guangdong Province, China
| | - Donglin Cao
- Department of Laboratory Medicine, Guangdong Second Provincial General Hospital, No. 466 Xingang Middle Road, Haizhu District, Guangzhou, 510317, Guangdong Province, China.
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Wang H, Guo S, Kim SJ, Shao F, Ho JWK, Wong KU, Miao Z, Hao D, Zhao M, Xu J, Zeng J, Wong KH, Di L, Wong AHH, Xu X, Deng CX. Cisplatin prevents breast cancer metastasis through blocking early EMT and retards cancer growth together with paclitaxel. Am J Cancer Res 2021; 11:2442-2459. [PMID: 33500735 PMCID: PMC7797698 DOI: 10.7150/thno.46460] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Accepted: 11/12/2020] [Indexed: 12/15/2022] Open
Abstract
Cancer growth is usually accompanied by metastasis which kills most cancer patients. Here we aim to study the effect of cisplatin at different doses on breast cancer growth and metastasis. Methods: We used cisplatin to treat breast cancer cells, then detected the migration of cells and the changes of epithelial-mesenchymal transition (EMT) markers by migration assay, Western blot, and immunofluorescent staining. Next, we analyzed the changes of RNA expression of genes by RNA-seq and confirmed the binding of activating transcription factor 3 (ATF3) to cytoskeleton related genes by ChIP-seq. Thereafter, we combined cisplatin and paclitaxel in a neoadjuvant setting to treat xenograft mouse models. Furthermore, we analyzed the association of disease prognosis with cytoskeletal genes and ATF3 by clinical data analysis. Results: When administered at a higher dose (6 mg/kg), cisplatin inhibits both cancer growth and metastasis, yet with strong side effects, whereas a lower dose (2 mg/kg) cisplatin blocks cancer metastasis without obvious killing effects. Cisplatin inhibits cancer metastasis through blocking early steps of EMT. It antagonizes transforming growth factor beta (TGFβ) signaling through suppressing transcription of many genes involved in cytoskeleton reorganization and filopodia formation which occur early in EMT and are responsible for cancer metastasis. Mechanistically, TGFβ and fibronectin-1 (FN1) constitute a positive reciprocal regulation loop that is critical for activating TGFβ/SMAD3 signaling, which is repressed by cisplatin induced expression of ATF3. Furthermore, neoadjuvant administration of cisplatin at 2 mg/kg in conjunction with paclitaxel inhibits cancer growth and blocks metastasis without causing obvious side effects by inhibiting colonization of cancer cells in the target organs. Conclusion: Thus, cisplatin prevents breast cancer metastasis through blocking early EMT, and the combination of cisplatin and paclitaxel represents a promising therapy for killing breast cancer and blocking tumor metastasis.
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Borgoni S, Sofyalı E, Soleimani M, Wilhelm H, Müller-Decker K, Will R, Noronha A, Beumers L, Verschure PJ, Yarden Y, Magnani L, van Kampen AH, Moerland PD, Wiemann S. Time-Resolved Profiling Reveals ATF3 as a Novel Mediator of Endocrine Resistance in Breast Cancer. Cancers (Basel) 2020; 12:E2918. [PMID: 33050633 PMCID: PMC7650760 DOI: 10.3390/cancers12102918] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 09/29/2020] [Accepted: 10/07/2020] [Indexed: 01/05/2023] Open
Abstract
Breast cancer is one of the leading causes of death for women worldwide. Patients whose tumors express Estrogen Receptor α account for around 70% of cases and are mostly treated with targeted endocrine therapy. However, depending on the degree of severity of the disease at diagnosis, 10 to 40% of these tumors eventually relapse due to resistance development. Even though recent novel approaches as the combination with CDK4/6 inhibitors increased the overall survival of relapsing patients, this remains relatively short and there is a urgent need to find alternative targetable pathways. In this study we profiled the early phases of the resistance development process to uncover drivers of this phenomenon. Time-resolved analysis revealed that ATF3, a member of the ATF/CREB family of transcription factors, acts as a novel regulator of the response to therapy via rewiring of central signaling processes towards the adaptation to endocrine treatment. ATF3 was found to be essential in controlling crucial processes such as proliferation, cell cycle, and apoptosis during the early response to treatment through the regulation of MAPK/AKT signaling pathways. Its essential role was confirmed in vivo in a mouse model, and elevated expression of ATF3 was verified in patient datasets, adding clinical relevance to our findings. This study proposes ATF3 as a novel mediator of endocrine resistance development in breast cancer and elucidates its role in the regulation of downstream pathways activities.
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Affiliation(s)
- Simone Borgoni
- Division of Molecular Genome Analysis, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 580, 69120 Heidelberg, Germany; (E.S.); (H.W.); (L.B.)
- Faculty of Biosciences, University of Heidelberg, Im Neuenheimer Feld 234, 69120 Heidelberg, Germany
| | - Emre Sofyalı
- Division of Molecular Genome Analysis, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 580, 69120 Heidelberg, Germany; (E.S.); (H.W.); (L.B.)
- Faculty of Biosciences, University of Heidelberg, Im Neuenheimer Feld 234, 69120 Heidelberg, Germany
| | - Maryam Soleimani
- Bioinformatics Laboratory, Department of Clinical Epidemiology, Biostatistics, and Bioinformatics, Amsterdam Public Health Research Institute, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands; (M.S.); (A.H.C.v.K.); (P.D.M.)
- Biosystems Data Analysis, Swammerdam Institute for Life Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Heike Wilhelm
- Division of Molecular Genome Analysis, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 580, 69120 Heidelberg, Germany; (E.S.); (H.W.); (L.B.)
| | - Karin Müller-Decker
- Tumor Models Core Facility, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany;
| | - Rainer Will
- Genomics and Proteomics Core Facility, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany;
| | - Ashish Noronha
- Department of Biological Regulation, Weizmann Institute of Science, 7610001 Rehovot, Israel; (A.N.); (Y.Y.)
| | - Lukas Beumers
- Division of Molecular Genome Analysis, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 580, 69120 Heidelberg, Germany; (E.S.); (H.W.); (L.B.)
- Faculty of Biosciences, University of Heidelberg, Im Neuenheimer Feld 234, 69120 Heidelberg, Germany
| | - Pernette J. Verschure
- Synthetic Systems Biology and Nuclear Organization, Swammerdam Institute for Life Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands;
| | - Yosef Yarden
- Department of Biological Regulation, Weizmann Institute of Science, 7610001 Rehovot, Israel; (A.N.); (Y.Y.)
| | - Luca Magnani
- Department of Surgery and Cancer, Imperial College London, W12 0NN London, UK;
| | - Antoine H.C. van Kampen
- Bioinformatics Laboratory, Department of Clinical Epidemiology, Biostatistics, and Bioinformatics, Amsterdam Public Health Research Institute, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands; (M.S.); (A.H.C.v.K.); (P.D.M.)
- Biosystems Data Analysis, Swammerdam Institute for Life Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Perry D. Moerland
- Bioinformatics Laboratory, Department of Clinical Epidemiology, Biostatistics, and Bioinformatics, Amsterdam Public Health Research Institute, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands; (M.S.); (A.H.C.v.K.); (P.D.M.)
| | - Stefan Wiemann
- Division of Molecular Genome Analysis, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 580, 69120 Heidelberg, Germany; (E.S.); (H.W.); (L.B.)
- Faculty of Biosciences, University of Heidelberg, Im Neuenheimer Feld 234, 69120 Heidelberg, Germany
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Fei Z, Lijuan Y, Jing Z, Xi Y, Yuefen P, Shuwen H. Molecular characteristics associated with ferroptosis in hepatocellular carcinoma progression. Hum Cell 2020; 34:177-186. [PMID: 32936424 DOI: 10.1007/s13577-020-00431-w] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Accepted: 09/08/2020] [Indexed: 12/16/2022]
Abstract
The aim of this study was to investigate the genes associated with ferroptosis and the progression of hepatocellular carcinoma (HCC). The RNA sequencing data of erastin-induced ferroptosis in HCC cells were downloaded from the Sequence Read Archive database with accession number SRP119173. The microarray dataset GSE89377 of HCC progression was downloaded from the Gene Expression Omnibus database. The ferroptosis-related genes were screened by differential analysis and HCC progression-related genes were screened by cluster analysis using Mfuzz. Then, the genes associated with ferroptosis and HCC progression were screened by Venn analysis, followed by functional enrichment, protein-protein interaction (PPI) analysis, and transcription factor (TF) prediction. Finally, survival analysis was performed using data from the Cancer Genome Atlas database. A total of 33 upregulated and 52 downregulated genes associated with HCC progression and ferroptosis were obtained, and these genes were significantly involved in the negative regulation of ERK1 and ERK2 cascades; the NAD biosynthetic process; alanine, aspartate, and glutamate metabolism; and other pathways. The PPI network contained 52 genes and 78 interactions, of which, cell division cycle 20 (CDC20) and heat shock protein family B (small) member 1 (HSPB1) were hub genes found in higher degrees. Among the 85 genes associated with HCC progression and ferroptosis, two TFs (activating TF 3 (ATF3) and HLF) were predicted, with HSPB1 targeted by ATF3. In addition, 26 genes that were found to be significantly correlated with the overall survival of HCC patients were screened, including CDC20 and thyroid hormone receptor interactor 13. Several genes associated with HCC progression and ferroptosis were screened based on a comprehensive bioinformatics analysis. These genes played roles in HCC progression and ferroptosis via the negative regulation of the ERK1 and ERK2 cascades; the NAD biosynthetic process; and alanine, aspartate, and glutamate metabolism. ATF3 and HSPB1 played important roles in HCC progression and ferroptosis, with HSPB1 possibly regulated by ATF3.
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Affiliation(s)
- Zuo Fei
- Department of Gastroenterology, Huzhou Cent Hospital, Affiliated Cent Hospital HuZhou University, 198 Hongqi Rd, Huzhou, Zhejiang, 313000, People's Republic of China
| | - Yin Lijuan
- Department of Rheumatology, Huzhou Cent Hospital, Affiliated Cent Hospital HuZhou University, 198 Hongqi Rd, Huzhou, Zhejiang, 313000, People's Republic of China
| | - Zhuang Jing
- Graduate School of Nursing, Huzhou University, No. 1 Bachelor Road, Huzhou, Zhejiang, 313000, China
| | - Yang Xi
- Department of Oncology, Huzhou Cent Hospital, Affiliated Cent Hospital Huzhou University, 198 Hongqi Rd, Huzhou, Zhejiang, 313000, People's Republic of China
| | - Pan Yuefen
- Department of Oncology, Huzhou Cent Hospital, Affiliated Cent Hospital Huzhou University, 198 Hongqi Rd, Huzhou, Zhejiang, 313000, People's Republic of China
| | - Han Shuwen
- Department of Oncology, Huzhou Cent Hospital, Affiliated Cent Hospital Huzhou University, 198 Hongqi Rd, Huzhou, Zhejiang, 313000, People's Republic of China.
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Chandrashekar DS, Golonka RM, Yeoh BS, Gonzalez DJ, Heikenwälder M, Gerwirtz AT, Varambally S, Vijay-Kumar M. Fermentable fiber-induced hepatocellular carcinoma in mice recapitulates gene signatures found in human liver cancer. PLoS One 2020; 15:e0234726. [PMID: 32559205 PMCID: PMC7304627 DOI: 10.1371/journal.pone.0234726] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Accepted: 06/01/2020] [Indexed: 12/14/2022] Open
Abstract
Hepatocellular carcinoma (HCC), the most malignant form of primary liver cancer, is the fourth most prevalent cause of cancer mortality globally. It was recently discovered that the dietary fermentable fiber, inulin, can reprogram the murine liver to favor HCC development in a gut microbiota-dependent manner. Determining the molecular pathways that are either over expressed or repressed during inulin-induced HCC would provide a platform of potential therapeutic targets. In the present study, we have combined analysis of the novel inulin-induced HCC murine model and human HCC samples to identify differentially expressed genes (DEGs) in hepatocarcinogenesis. Hepatic transcriptome profiling revealed that there were 674 DEGs in HCC mice compared to mice safeguarded from HCC. Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis uncovered enrichment in ECM-receptor interaction, steroid hormone biosynthesis, PPAR signaling pathway, focal adhesion and protein digestion and absorption during inulin-induced HCC. Tandem mass tag based quantitative, multiplexed proteomic analysis delineated 57 differentially expressed proteins, where the over-expressed proteins were associated with cell adhesion molecules, valine, leucine and isoleucine degradation and ECM-receptor interaction. After obtaining the human orthologs of the mouse genes, we did a comparison analysis to level 3 RNA-seq data found in the Cancer Genome Atlas (TCGA) database, corresponding to human HCC (n = 361) and healthy liver (n = 50) samples. Out of the 549 up-regulated and 68 down-regulated human orthologs identified, 142 genes (137 significantly over-expressed and 5 significantly under-expressed) were associated with human HCC. Using univariate survival analysis, we found 27 over-expressed genes involved in cell-cell adhesion and cell division that were associated with poor HCC patient survival. Overall, the genetic and proteomics signatures highlight potential underlying mechanisms in inulin-induced HCC and support that this murine HCC model is human relevant.
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Affiliation(s)
| | - Rachel M. Golonka
- Department of Physiology and Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, OH, United States of America
| | - Beng San Yeoh
- Department of Physiology and Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, OH, United States of America
| | - David J. Gonzalez
- Department of Pharmacology, School of Medicine, and The School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, CA, United States of America
| | - Mathias Heikenwälder
- Division of Chronic Inflammation and Cancer, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Andrew T. Gerwirtz
- Center for Inflammation, Immunity and Infection, Institute for Biomedical Sciences, Georgia State University, Atlanta, GA, United States of America
| | - Sooryanarayana Varambally
- Department of Pathology, University of Alabama at Birmingham, Birmingham, AL, United States of America
- Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL, United States of America
- * E-mail: (MVK); (SV)
| | - Matam Vijay-Kumar
- Department of Physiology and Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, OH, United States of America
- Department of Medical Microbiology and Immunology, University of Toledo College of Medicine and Life Sciences, Toledo, OH, United States of America
- * E-mail: (MVK); (SV)
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Sun C, Guo Y, Zhou W, Xia C, Xing X, Chen J, Li X, Zhu H, Lu J. p300 promotes cell proliferation through suppressing Kaposi's sarcoma-associated herpesvirus (KSHV) reactivation in the infected B-lymphoma cells. Virus Res 2020; 286:198066. [PMID: 32553609 DOI: 10.1016/j.virusres.2020.198066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 06/10/2020] [Accepted: 06/12/2020] [Indexed: 01/14/2023]
Abstract
Primary Effusion Lymphoma (PEL) is a B-cell lymphoma associated with Kaposi's sarcoma herpesvirus (KSHV) infection. However, the mechanism of oncogenesis of PEL is still unclear. Studies have shown that the cellular transcriptional coactivator p300 regulates the interaction between host and virus, which plays a vital role in viral replication. In this study, we investigated the role of p300 in BCBL1 cells during the KSHV life cycle. We found that p300 knockout resulted in an overall increase for the early lytic genes and changed the expression of genes associated with tumor development, proliferation, and the immune response in the KSHV infected B cells. However, knockout of p300 significantly inhibited the expression of the immediate-early gene RTA and the late lytic gene K8 after KSHV lytic activation. Additionally, the intracellular KSHV genome copy number and the virion production were reduced. These results demonstrated that p300 plays a crucial role in suppressing KSHV viral replication in BCBL1. Furthermore, we observed that the growth of BCBL1 was inhibited by knockout of p300, which confirmed our findings that p300 promotes cell proliferation. This study further provided evidence that p300 plays an important role in the pathogenesis of BCBL1, which might lead to the oncogenesis of PEL caused by KSHV infection.
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Affiliation(s)
- Chuankai Sun
- Department of Biotechnology, College of Life Science and Technology, Jinan University Guangzhou, 510632, China
| | - Yizhen Guo
- Department of Biotechnology, College of Life Science and Technology, Jinan University Guangzhou, 510632, China
| | - Wei Zhou
- The Biomedical Translational Research Institute, Jinan University Guangzhou, 510632, China
| | - Chuan Xia
- Department of Biotechnology, College of Life Science and Technology, Jinan University Guangzhou, 510632, China
| | - Xiwen Xing
- Department of Biotechnology, College of Life Science and Technology, Jinan University Guangzhou, 510632, China
| | - Jun Chen
- Department of Biotechnology, College of Life Science and Technology, Jinan University Guangzhou, 510632, China
| | - Xin Li
- Department of Biotechnology, College of Life Science and Technology, Jinan University Guangzhou, 510632, China
| | - Hua Zhu
- Department of Biotechnology, College of Life Science and Technology, Jinan University Guangzhou, 510632, China
| | - Jie Lu
- Department of Biotechnology, College of Life Science and Technology, Jinan University Guangzhou, 510632, China.
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Li L, Sun RM, Jiang GQ. ATF3 Demethylation Promotes the Transcription of ARL4C, Which Acts as a Tumor Suppressor in Human Breast Cancer. Onco Targets Ther 2020; 13:3467-3476. [PMID: 32425548 PMCID: PMC7195577 DOI: 10.2147/ott.s243632] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Accepted: 04/14/2020] [Indexed: 12/14/2022] Open
Abstract
INTRODUCTION Breast cancer is a common malignancy in females worldwide. In this study, we investigated the role of activating transcription factor 3 (ATF3) and ADP-ribosylation factor like-4 (ARL4) in human breast cancer, and the associated mechanisms. MATERIALS AND METHODS We measured ATF3 and ATL4C expressions in 15 paired breast cancer tissues using qRT-PCR, Western blotting and IHC. Cell growth, migration and invasion were tested in ATF3 or ARL4C overexpression breast cancer cells. TCGA database analysis was done to identify the correlation between ATF3 and ARL4C. We evaluated the binding of ATF3 to ARL4C promoter sequences and the effect of hypermethylation and demethylation of ATF3. A meta-analysis was done to investigate the relationship between the expression of ATF3 and/or ARL4C and the poor prognoses. RESULTS Our results showed that ATF3 and ARL4C were decreased in breast cancer specimens at both mRNA and protein levels. Restoration of ATF3 or ARL4C reduced breast cancer tumorigenesis, evidenced by decreased cell growth, migration and invasion. The expression of ATF3 was positively correlated with ARL4C in breast cancer specimens, and ATF3 was shown to bind to the ARL4C promoter sequences. Furthermore, the expression of ATF3 was negatively regulated by hypermethylation, and demethylation of ATF3 stimulated ATF3 expression, which further promoted ARL4C transcription. Finally, a meta-analysis showed that patients with breast cancer with lower expression levels of ATF3 and/or ARL4C had worse prognoses. CONCLUSION Our results suggest that the ATF3/ARL4C axis may be a prospective biomarker for diagnosis and determination of prognosis, and a potential target for breast cancer treatment.
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Affiliation(s)
- Liqi Li
- Department of Surgery, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu215004, People’s Republic of China
- Department of Thyroid Breast Surgery, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu214062, People’s Republic of China
| | - Rong-Mao Sun
- Department of Surgery, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu215004, People’s Republic of China
| | - Guo-Qin Jiang
- Department of Surgery, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu215004, People’s Republic of China
- Correspondence: Guo-Qin Jiang Suzhou215004, People’s Republic of China Tel/Fax +86-512-67784797 Email
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Ku HC, Cheng CF. Master Regulator Activating Transcription Factor 3 (ATF3) in Metabolic Homeostasis and Cancer. Front Endocrinol (Lausanne) 2020; 11:556. [PMID: 32922364 PMCID: PMC7457002 DOI: 10.3389/fendo.2020.00556] [Citation(s) in RCA: 159] [Impact Index Per Article: 39.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 07/07/2020] [Indexed: 12/18/2022] Open
Abstract
Activating transcription factor 3 (ATF3) is a stress-induced transcription factor that plays vital roles in modulating metabolism, immunity, and oncogenesis. ATF3 acts as a hub of the cellular adaptive-response network. Multiple extracellular signals, such as endoplasmic reticulum (ER) stress, cytokines, chemokines, and LPS, are connected to ATF3 induction. The function of ATF3 as a regulator of metabolism and immunity has recently sparked intense attention. In this review, we describe how ATF3 can act as both a transcriptional activator and a repressor. We then focus on the role of ATF3 and ATF3-regulated signals in modulating metabolism, immunity, and oncogenesis. The roles of ATF3 in glucose metabolism and adipose tissue regulation are also explored. Next, we summarize how ATF3 regulates immunity and maintains normal host defense. In addition, we elaborate on the roles of ATF3 as a regulator of prostate, breast, colon, lung, and liver cancers. Further understanding of how ATF3 regulates signaling pathways involved in glucose metabolism, adipocyte metabolism, immuno-responsiveness, and oncogenesis in various cancers, including prostate, breast, colon, lung, and liver cancers, is then provided. Finally, we demonstrate that ATF3 acts as a master regulator of metabolic homeostasis and, therefore, may be an appealing target for the treatment of metabolic dyshomeostasis, immune disorders, and various cancers.
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Affiliation(s)
- Hui-Chen Ku
- Department of Pediatrics, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Taipei, Taiwan
| | - Ching-Feng Cheng
- Department of Pediatrics, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Taipei, Taiwan
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
- Department of Pediatrics, Tzu Chi University, Hualien, Taiwan
- *Correspondence: Ching-Feng Cheng
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AK4 Promotes the Progression of HER2-Positive Breast Cancer by Facilitating Cell Proliferation and Invasion. DISEASE MARKERS 2019; 2019:8186091. [PMID: 31827645 PMCID: PMC6886328 DOI: 10.1155/2019/8186091] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 07/23/2019] [Accepted: 10/05/2019] [Indexed: 12/31/2022]
Abstract
Breast cancer (BC) is a type of malignant tumor originating from the epithelial tissue of the mammary gland, and about 20% of breast cancers are human epidermal growth factor receptor 2 positive (HER2+), which is a subtype with more aggression. Recently, HER2-positive breast cancer is often accompanied by poor prognosis of patients, and targeted therapy showed a promising prospect. To combat this disease, novel therapeutic targets are still needed. Adenylate kinase 4 (AK4) is a member of the adenylate kinase family and is expressed in the mitochondrial matrix. AK4 is involved in multiple cellular functions such as energy metabolism homeostasis. Interestingly, AK4 was observed highly expressed in several tumor tissues, and the involvement of AK4 in cancer development was generally revealed. However, the possible role of AK4 on the growth and development of breast cancer is still unclear. Here, we investigated the possible functions of AK4 on the progression of HER2-positive breast cancer. We found the high expression of AK4 in HER2-positive breast cancer tissues from patients who received surgical treatment. Additionally, AK4 expression levels were obviously correlated with clinical-pathological features, including pTNM stage (P = 0.017) and lymph node metastasis (P = 0.046). We mechanically confirmed that AK4 depletion showed the obvious impairment of cell proliferation and invasion in MCF7 and MDA-MB-231 cells. AK4 also facilitates tumor growth and metastasis of HER2-positive breast cancer in vivo. In conclusion, we identified and mechanically confirmed that AK4 is a novel therapeutic target of HER2-positive breast cancer.
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