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Böpple K, Oren Y, Henry WS, Dong M, Weller S, Thiel J, Kleih M, Gaißler A, Zipperer D, Kopp HG, Aylon Y, Oren M, Essmann F, Liang C, Aulitzky WE. ATF3 characterizes aggressive drug-tolerant persister cells in HGSOC. Cell Death Dis 2024; 15:290. [PMID: 38658567 PMCID: PMC11043376 DOI: 10.1038/s41419-024-06674-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 03/19/2024] [Accepted: 04/11/2024] [Indexed: 04/26/2024]
Abstract
High-grade serous ovarian cancer (HGSOC) represents the most common and lethal subtype of ovarian cancer. Despite initial response to platinum-based standard therapy, patients commonly suffer from relapse that likely originates from drug-tolerant persister (DTP) cells. We generated isogenic clones of treatment-naïve and cisplatin-tolerant persister HGSOC cells. In addition, single-cell RNA sequencing of barcoded cells was performed in a xenograft model with HGSOC cell lines after platinum-based therapy. Published single-cell RNA-sequencing data from neo-adjuvant and non-treated HGSOC patients and patient data from TCGA were analyzed. DTP-derived cells exhibited morphological alterations and upregulation of epithelial-mesenchymal transition (EMT) markers. An aggressive subpopulation of DTP-derived cells showed high expression of the stress marker ATF3. Knockdown of ATF3 enhanced the sensitivity of aggressive DTP-derived cells to cisplatin-induced cell death, implying a role for ATF3 stress response in promoting a drug tolerant persister cell state. Furthermore, single cell lineage tracing to detect transcriptional changes in a HGSOC cell line-derived xenograft relapse model showed that cells derived from relapsed solid tumors express increased levels of EMT and multiple endoplasmic reticulum (ER) stress markers, including ATF3. Single cell RNA sequencing of epithelial cells from four HGSOC patients also identified a small cell population resembling DTP cells in all samples. Moreover, analysis of TCGA data from 259 HGSOC patients revealed a significant progression-free survival advantage for patients with low expression of the ATF3-associated partial EMT genes. These findings suggest that increased ATF3 expression together with partial EMT promote the development of aggressive DTP, and thereby relapse in HGSOC patients.
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Affiliation(s)
- Kathrin Böpple
- Dr. Margarete Fischer-Bosch - Institute of Clinical Pharmacology and University of Tuebingen, Auerbachstr. 112, 70376, Stuttgart, Germany.
| | - Yaara Oren
- Department of Human Molecular Genetics & Biochemistry, Faculty of Medicine, Tel Aviv University, Tel Aviv-Yafo, Israel
| | - Whitney S Henry
- Whitehead Institute for Biomedical Research, 455 Main St., Cambridge, MA, 02142, USA
| | - Meng Dong
- Dr. Margarete Fischer-Bosch - Institute of Clinical Pharmacology and University of Tuebingen, Auerbachstr. 112, 70376, Stuttgart, Germany
| | - Sandra Weller
- Dr. Margarete Fischer-Bosch - Institute of Clinical Pharmacology and University of Tuebingen, Auerbachstr. 112, 70376, Stuttgart, Germany
- Robert Bosch Center for Tumor Diseases (RBCT), Auerbachstr. 110, 70376, Stuttgart, Germany
| | - Julia Thiel
- Dr. Margarete Fischer-Bosch - Institute of Clinical Pharmacology and University of Tuebingen, Auerbachstr. 112, 70376, Stuttgart, Germany
| | - Markus Kleih
- Dr. Margarete Fischer-Bosch - Institute of Clinical Pharmacology and University of Tuebingen, Auerbachstr. 112, 70376, Stuttgart, Germany
| | - Andrea Gaißler
- Dr. Margarete Fischer-Bosch - Institute of Clinical Pharmacology and University of Tuebingen, Auerbachstr. 112, 70376, Stuttgart, Germany
| | - Damaris Zipperer
- Dr. Margarete Fischer-Bosch - Institute of Clinical Pharmacology and University of Tuebingen, Auerbachstr. 112, 70376, Stuttgart, Germany
| | - Hans-Georg Kopp
- Robert Bosch Hospital, Auerbachstr. 110, 70376, Stuttgart, Germany
- Robert Bosch Center for Tumor Diseases (RBCT), Auerbachstr. 110, 70376, Stuttgart, Germany
| | - Yael Aylon
- Weizmann Institute of Science, 234 Herzl St, Rehovot, Israel
| | - Moshe Oren
- Weizmann Institute of Science, 234 Herzl St, Rehovot, Israel
| | - Frank Essmann
- Dr. Margarete Fischer-Bosch - Institute of Clinical Pharmacology and University of Tuebingen, Auerbachstr. 112, 70376, Stuttgart, Germany
- Robert Bosch Center for Tumor Diseases (RBCT), Auerbachstr. 110, 70376, Stuttgart, Germany
| | - Chunguang Liang
- Department of Bioinformatics, Biocenter Am Hubland, University of Wuerzburg, 97074, Wuerzburg, Germany.
- Institute of Immunology, Jena University Hospital, Friedrich-Schiller-University, Leutragraben 3, 07743, Jena, Germany.
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Kalinin A, Zubkova E, Menshikov M. Integrated Stress Response (ISR) Pathway: Unraveling Its Role in Cellular Senescence. Int J Mol Sci 2023; 24:17423. [PMID: 38139251 PMCID: PMC10743681 DOI: 10.3390/ijms242417423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 12/11/2023] [Accepted: 12/12/2023] [Indexed: 12/24/2023] Open
Abstract
Cellular senescence is a complex process characterized by irreversible cell cycle arrest. Senescent cells accumulate with age, promoting disease development, yet the absence of specific markers hampers the development of selective anti-senescence drugs. The integrated stress response (ISR), an evolutionarily highly conserved signaling network activated in response to stress, globally downregulates protein translation while initiating the translation of specific protein sets including transcription factors. We propose that ISR signaling plays a central role in controlling senescence, given that senescence is considered a form of cellular stress. Exploring the intricate relationship between the ISR pathway and cellular senescence, we emphasize its potential as a regulatory mechanism in senescence and cellular metabolism. The ISR emerges as a master regulator of cellular metabolism during stress, activating autophagy and the mitochondrial unfolded protein response, crucial for maintaining mitochondrial quality and efficiency. Our review comprehensively examines ISR molecular mechanisms, focusing on ATF4-interacting partners, ISR modulators, and their impact on senescence-related conditions. By shedding light on the intricate relationship between ISR and cellular senescence, we aim to inspire future research directions and advance the development of targeted anti-senescence therapies based on ISR modulation.
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Affiliation(s)
- Alexander Kalinin
- National Medical Research Centre of Cardiology Named after Academician E.I. Chazov, 121552 Moscow, Russia; (A.K.); (E.Z.)
- Faculty of Fundamental Medicine, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Ekaterina Zubkova
- National Medical Research Centre of Cardiology Named after Academician E.I. Chazov, 121552 Moscow, Russia; (A.K.); (E.Z.)
| | - Mikhail Menshikov
- National Medical Research Centre of Cardiology Named after Academician E.I. Chazov, 121552 Moscow, Russia; (A.K.); (E.Z.)
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3
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Xu Q, Zhu F, Pan Y, Ren Y, Li J, Huang N, Liu K, Wang Y. HIV Tat-Conjugated Histone H3 Peptides Induce Tumor Cell Death Via Cellular Stress Responses. Hum Gene Ther 2023; 34:42-55. [PMID: 36373826 DOI: 10.1089/hum.2022.165] [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: 11/16/2022] Open
Abstract
Histone H3 is a nucleosome scaffold protein that is involved in a variety of intracellular processes. Aberrant modification of H3 is important in carcinogenesis. In contrast, free histones in cells can act as stimuli to trigger cellular immune responses and cell death. In this study, we linked cell-penetrating peptide HIV Tat to a histone H3 fragment to achieve intracellular delivery in tumor cells. We found that Tat-conjugated histone polypeptides localized to nuclei of lung and breast cancer cells and caused cell death. A trans-configured Tat sequence displayed dramatically improved peptide half-life and cytotoxicity. Mechanistic studies demonstrated that treatment with the peptides significantly elevated mitogen-activated protein kinase (MAPK) signaling, reactive oxygen species (ROS) production, as well as levels of stress-inducible transcription factor ATF3 (activating transcription factor 3) and AP-1 (activating protein-1). Cytotoxicity of the peptide was significantly reduced by inhibition of AP-1 activity and ROS production. These results suggest the potential of Tat-conjugated H3 peptides as antitumor agents to induce cell death via increased cellular stress response by activating p38-MAPK signaling and intracellular ROS production.
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Affiliation(s)
- Qian Xu
- Department of Pathophysiology, West China College of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, China
| | - Feimei Zhu
- Department of Pathophysiology, West China College of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, China
| | - Yixuan Pan
- Department of Biochemistry and Molecular Cell Biology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yanlin Ren
- Department of Pathophysiology, West China College of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, China
| | - Jingyu Li
- Department of Pathophysiology, West China College of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, China
| | - Ning Huang
- Department of Pathophysiology, West China College of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, China
| | - Keyun Liu
- Department of Physiology, School of Medicine, Hubei Minzu University, Enshi, China
| | - Yi Wang
- Department of Pathophysiology, West China College of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, China
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4
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Liu J, Hong S, Yang J, Zhang X, Wang Y, Wang H, Peng J, Hong L. Targeting purine metabolism in ovarian cancer. J Ovarian Res 2022; 15:93. [PMID: 35964092 PMCID: PMC9375293 DOI: 10.1186/s13048-022-01022-z] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 07/17/2022] [Indexed: 11/10/2022] Open
Abstract
Purine, an abundant substrate in organisms, is a critical raw material for cell proliferation and an important factor for immune regulation. The purine de novo pathway and salvage pathway are tightly regulated by multiple enzymes, and dysfunction in these enzymes leads to excessive cell proliferation and immune imbalance that result in tumor progression. Maintaining the homeostasis of purine pools is an effective way to control cell growth and tumor evolution, and exploiting purine metabolism to suppress tumors suggests interesting directions for future research. In this review, we describe the process of purine metabolism and summarize the role and potential therapeutic effects of the major purine-metabolizing enzymes in ovarian cancer, including CD39, CD73, adenosine deaminase, adenylate kinase, hypoxanthine guanine phosphoribosyltransferase, inosine monophosphate dehydrogenase, purine nucleoside phosphorylase, dihydrofolate reductase and 5,10-methylenetetrahydrofolate reductase. Purinergic signaling is also described. We then provide an overview of the application of purine antimetabolites, comprising 6-thioguanine, 6-mercaptopurine, methotrexate, fludarabine and clopidogrel. Finally, we discuss the current challenges and future opportunities for targeting purine metabolism in the treatment-relevant cellular mechanisms of ovarian cancer.
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Affiliation(s)
- Jingchun Liu
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Shasha Hong
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Jiang Yang
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Xiaoyi Zhang
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Ying Wang
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Haoyu Wang
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Jiaxin Peng
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Li Hong
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, China.
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5
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Rafiyan M, Abadi MHJN, Zadeh SST, Hamblin MR, Mousavi M, Mirzaei H. Lysophosphatidic Acid Signaling and microRNAs: New Roles in Various Cancers. Front Oncol 2022; 12:917471. [PMID: 35814375 PMCID: PMC9259992 DOI: 10.3389/fonc.2022.917471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 05/24/2022] [Indexed: 11/13/2022] Open
Abstract
A wide range of microRNAs (miRNAs) are coded for in the human genome and contribute to the regulation of gene expression. MiRNAs are able to degrade mRNAs and/or prevent the RNA transcript from being translated through complementary binding of the miRNA seed region (nucleotide 2-8) to the 3’-untranslated regions of many mRNAs. Although miRNAs are involved in almost all processes of normal human cells, they are also involved in the abnormal functions of cancer cells. MiRNAs can play dual regulatory roles in cancer, acting either as tumor suppressors or as tumor promoters, depending on the target, tumor type, and stage. In the current review, we discuss the present status of miRNA modulation in the setting of lysophosphatidic acid (LPA) signaling. LPA is produced from lysophosphatidylcholine by the enzyme autotaxin and signals via a range of G protein-coupled receptors to affect cellular processes, which ultimately causes changes in cell morphology, survival, proliferation, differentiation, migration, and adhesion. Several studies have identified miRNAs that are over-expressed in response to stimulation by LPA, but their functional roles have not yet been fully clarified. Since RNA-based treatments hold tremendous promise in the area of personalized medicne, many efforts have been made to bring miRNAs into clinical trials, and this field is evolving at an increasing pace.
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Affiliation(s)
- Mahdi Rafiyan
- School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
- Student Research Committee, Kashan University of Medical Sciences, Kashan, Iran
| | | | | | - Michael R. Hamblin
- Laser Research Centre, Faculty of Health Science, University of Johannesburg, Doornfontein, South Africa
| | - Mahboubeh Mousavi
- Department of Anatomy, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran
- *Correspondence: Mahboubeh Mousavi, ; Hamed Mirzaei, ;
| | - Hamed Mirzaei
- Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
- *Correspondence: Mahboubeh Mousavi, ; Hamed Mirzaei, ;
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Utilizing digital pathology to quantify stromal caveolin-1 expression in malignant and benign ovarian tumors: Associations with clinicopathological parameters and clinical outcomes. PLoS One 2021; 16:e0256615. [PMID: 34813586 PMCID: PMC8610269 DOI: 10.1371/journal.pone.0256615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 11/09/2021] [Indexed: 11/19/2022] Open
Abstract
Loss of stromal caveolin-1 (Cav-1) is a biomarker of a cancer-associated fibroblast (CAF) phenotype and is related to progression, metastasis, and poor outcomes in several cancers. The objective of this study was to evaluate the clinical significance of Cav-1 expression in invasive epithelial ovarian cancer (OvCa). Epithelial and stromal Cav-1 expression were quantified in serous OvCa and benign ovarian tissue in two, independent cohorts–one quantified expression using immunohistochemistry (IHC) and the other using multiplex immunofluorescence (IF) with digital image analysis designed to target CAF-specific expression. Cav-1 expression was significantly downregulated in OvCa stroma compared to non-neoplastic stroma using both the IHC (p = 0.002) and IF (p = 1.8x10-13) assays. OvCa stroma showed Cav-1 downregulation compared to tumor epithelium with IHC (p = 1.2x10-24). Conversely, Cav-1 expression was higher in OvCa stroma compared to tumor epithelium with IF (p = 0.002). There was moderate correlation between IHC and IF methods for stromal Cav-1 expression (r2 = 0.69, p = 0.006) whereas there was no correlation for epithelial expression (r2 = 0.006, p = 0.98). Irrespective of the staining assay, neither response to therapy or overall survival correlated with the expression level of Cav-1 in the stroma or tumor epithelium. Our findings demonstrate a loss of stromal Cav-1 expression in ovarian serous carcinomas. Studies are needed to replicate these findings and explore therapeutic implications, particularly for immunotherapy response.
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Asif K, Memeo L, Palazzolo S, Frión-Herrera Y, Parisi S, Caligiuri I, Canzonieri V, Granchi C, Tuccinardi T, Rizzolio F. STARD3: A Prospective Target for Cancer Therapy. Cancers (Basel) 2021; 13:4693. [PMID: 34572920 PMCID: PMC8472075 DOI: 10.3390/cancers13184693] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 09/10/2021] [Indexed: 12/24/2022] Open
Abstract
Cancer is one of the major causes of death in developed countries and current therapies are based on surgery, chemotherapeutic agents, and radiation. To overcome side effects induced by chemo- and radiotherapy, in recent decades, targeted therapies have been proposed in second and even first lines. Targeted drugs act on the essential pathways involved in tumor induction, progression, and metastasis, basically all the hallmark of cancers. Among emerging pathways, the cholesterol metabolic pathway is a strong candidate for this purpose. Cancer cells have an accelerated metabolic rate and require a continuous supply of cholesterol for cell division and membrane renewal. Steroidogenic acute regulatory related lipid transfer (START) proteins are a family of proteins involved in the transfer of lipids and some of them are important in non-vesicular cholesterol transportation within the cell. The alteration of their expression levels is implicated in several diseases, including cancers. In this review, we report the latest discoveries on StAR-related lipid transfer protein domain 3 (STARD3), a member of the START family, which has a potential role in cancer, focusing on the structural and biochemical characteristics and mechanisms that regulate its activity. The role of the STARD3 protein as a molecular target for the development of cancer therapies is also discussed. As STARD3 is a key protein in the cholesterol movement in cancer cells, it is of interest to identify inhibitors able to block its activity.
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Affiliation(s)
- Kanwal Asif
- Department of Molecular Sciences and Nanosystems, PhD School in Science and Technology of Bio and Nanomaterials, Ca’ Foscari University of Venice, 30172 Venice, Italy;
- Pathology Unit, Centro di Riferimento Oncologico di Aviano (C.R.O.) IRCCS, 33081 Aviano, Italy; (S.P.); (S.P.); (V.C.)
| | - Lorenzo Memeo
- Department of Experimental Oncology, Mediterranean Institute of Oncology, 95029 Catania, Italy;
| | - Stefano Palazzolo
- Pathology Unit, Centro di Riferimento Oncologico di Aviano (C.R.O.) IRCCS, 33081 Aviano, Italy; (S.P.); (S.P.); (V.C.)
| | - Yahima Frión-Herrera
- Department of Molecular Sciences and Nanosystems, Ca’ Foscari University of Venice, 30172 Venice, Italy; or
| | - Salvatore Parisi
- Pathology Unit, Centro di Riferimento Oncologico di Aviano (C.R.O.) IRCCS, 33081 Aviano, Italy; (S.P.); (S.P.); (V.C.)
| | - Isabella Caligiuri
- Pathology Unit, Centro di Riferimento Oncologico di Aviano (C.R.O.) IRCCS, 33081 Aviano, Italy; (S.P.); (S.P.); (V.C.)
| | - Vincenzo Canzonieri
- Pathology Unit, Centro di Riferimento Oncologico di Aviano (C.R.O.) IRCCS, 33081 Aviano, Italy; (S.P.); (S.P.); (V.C.)
- Department of Medical, Surgical and Health Sciences, University of Trieste, 34149 Trieste, Italy
| | - Carlotta Granchi
- Department of Pharmacy, University of Pisa, 56126 Pisa, Italy; (C.G.); (T.T.)
| | - Tiziano Tuccinardi
- Department of Pharmacy, University of Pisa, 56126 Pisa, Italy; (C.G.); (T.T.)
| | - Flavio Rizzolio
- Pathology Unit, Centro di Riferimento Oncologico di Aviano (C.R.O.) IRCCS, 33081 Aviano, Italy; (S.P.); (S.P.); (V.C.)
- Department of Molecular Sciences and Nanosystems, Ca’ Foscari University of Venice, 30172 Venice, Italy; or
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Zhang YL, Wen XD, Guo X, Huang SQ, Wang TT, Zhou PT, Li W, Zhou LF, Hu YH. Progesterone suppresses the progression of colonic carcinoma by increasing the activity of the GADD45α/JNK/c‑Jun signalling pathway. Oncol Rep 2021; 45:95. [PMID: 33846816 PMCID: PMC8054317 DOI: 10.3892/or.2021.8046] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 02/25/2021] [Indexed: 02/06/2023] Open
Abstract
Colorectal cancer (CRC) is the third most diagnosed cancer worldwide. Progesterone is associated with a decreased risk of CRC and leads to a favourable prognosis. However, the specific mechanism by which progesterone suppresses malignant progression remains to be elucidated. In the present study, the level of progesterone was first analysed in 77 patients with CRC, and immunohistochemistry was performed to detect the expression of progesterone receptor (PGR) in the paired specimens. The correlations between progesterone, PGR and CRC prognosis were assessed. A Cell Counting Kit-8 assay was then used to detect proliferation of the CRC cells. Flow cytometry was performed to estimate apoptosis and to evaluate the cycle of the CRC cells. A xenograft tumour model was established in nude mice to assess the role of progesterone in tumour growth. Finally, a PCR microarray was used to screen differentially expressed genes to further interpret the mechanism by which progesterone inhibits the malignant progression of CRC. It was found that low expression of progesterone and PGR were significantly associated with poor prognosis of CRC. In addition, progesterone suppressed CRC cell proliferation by arresting the cell cycle and inducing apoptosis in vitro. Moreover, the inhibitory role of progesterone in tumour growth was verified in vivo. Further investigation showed that the level of growth arrest and DNA damage-inducible protein α (GADD45α) was up-regulated by progesterone, and this was followed by the activation of the JNK pathway. Progesterone increased the activity of the JNK pathway via GADD45α to inhibit proliferation by arresting the cell cycle and inducing apoptosis, thereby suppressing the malignant progression of CRC. Therefore, it can be concluded that progesterone and PGR might act as inhibiting factors for poor prognosis of CRC.
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Affiliation(s)
- Yao-Lei Zhang
- College of Medicine, Southwest Jiaotong University, Chengdu, Sichuan 610031, P.R. China
| | - Xu-Dong Wen
- Department of Gastroenterology, Chengdu First People's Hospital, Chengdu, Sichuan 610016, P.R. China
| | - Xin Guo
- Central Laboratory, General Hospital of Western Theater Command, Chengdu, Sichuan 610016, P.R. China
| | - Shang-Qing Huang
- College of Medicine, Southwest Jiaotong University, Chengdu, Sichuan 610031, P.R. China
| | - Ting-Ting Wang
- College of Medicine, Southwest Jiaotong University, Chengdu, Sichuan 610031, P.R. China
| | - Pei-Ting Zhou
- College of Medicine, Southwest Jiaotong University, Chengdu, Sichuan 610031, P.R. China
| | - Wei Li
- Central Laboratory, General Hospital of Western Theater Command, Chengdu, Sichuan 610016, P.R. China
| | - Long-Fu Zhou
- College of Medicine, Southwest Jiaotong University, Chengdu, Sichuan 610031, P.R. China
| | - Yong-He Hu
- College of Medicine, Southwest Jiaotong University, Chengdu, Sichuan 610031, P.R. China
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Wang Z, Liu Y, Liu J, Kong N, Jiang Y, Jiang R, Zhen X, Zhou J, Li C, Sun H, Yan G. ATF3 deficiency impairs the proliferative-secretory phase transition and decidualization in RIF patients. Cell Death Dis 2021; 12:387. [PMID: 33846304 PMCID: PMC8041902 DOI: 10.1038/s41419-021-03679-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 03/25/2021] [Accepted: 03/30/2021] [Indexed: 12/20/2022]
Abstract
Decidualization is a complex process involving cellular proliferation and differentiation of the endometrial stroma and is required to establish and support pregnancy. Dysregulated decidualization has been reported to be a critical cause of recurrent implantation failure (RIF). In this study, we found that Activating transcription factor 3 (ATF3) expression was significantly downregulated in the endometrium of RIF patients. Knockdown of ATF3 in human endometrium stromal cells (hESCs) hampers decidualization, while overexpression could trigger the expression of decidual marker genes, and ameliorate the decidualization of hESCs from RIF patients. Mechanistically, ATF3 promotes decidualization by upregulating FOXO1 via suppressing miR-135b expression. In addition, the endometrium of RIF patients was hyperproliferative, while overexpression of ATF3 inhibited the proliferation of hESCs through CDKN1A. These data demonstrate the critical roles of endometrial ATF3 in regulating decidualization and proliferation, and dysregulation of ATF3 in the endometrium may be a novel cause of RIF and therefore represent a potential therapeutic target for RIF.
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Affiliation(s)
- Zhilong Wang
- Reproductive Medicine Center, The Affiliated Drum Tower Hospital of Nanjing University Medical School, 210008, Nanjing, People's Republic of China
| | - Yang Liu
- Reproductive Medicine Center, The Affiliated Drum Tower Hospital of Nanjing University Medical School, 210008, Nanjing, People's Republic of China
| | - Jingyu Liu
- Reproductive Medicine Center, The Affiliated Drum Tower Hospital of Nanjing University Medical School, 210008, Nanjing, People's Republic of China
| | - Na Kong
- Reproductive Medicine Center, The Affiliated Drum Tower Hospital of Nanjing University Medical School, 210008, Nanjing, People's Republic of China
| | - Yue Jiang
- Reproductive Medicine Center, The Affiliated Drum Tower Hospital of Nanjing University Medical School, 210008, Nanjing, People's Republic of China
| | - Ruiwei Jiang
- Reproductive Medicine Center, The Affiliated Drum Tower Hospital of Nanjing University Medical School, 210008, Nanjing, People's Republic of China
| | - Xin Zhen
- Reproductive Medicine Center, The Affiliated Drum Tower Hospital of Nanjing University Medical School, 210008, Nanjing, People's Republic of China
| | - Jidong Zhou
- Reproductive Medicine Center, The Affiliated Drum Tower Hospital of Nanjing University Medical School, 210008, Nanjing, People's Republic of China
| | - Chaojun Li
- Nanjing University Medical School, 210008, Nanjing, People's Republic of China
| | - Haixiang Sun
- Reproductive Medicine Center, The Affiliated Drum Tower Hospital of Nanjing University Medical School, 210008, Nanjing, People's Republic of China.
| | - Guijun Yan
- Reproductive Medicine Center, The Affiliated Drum Tower Hospital of Nanjing University Medical School, 210008, Nanjing, People's Republic of China.
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10
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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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11
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Jo E, Jang HJ, Yang KE, Jang MS, Huh YH, Yoo HS, Park J, Jang IS, Park SJ. Cordyceps militarisExerts Antitumor Effect on Carboplatin-Resistant Ovarian Cancer via Activation of ATF3/TP53 Signaling In Vitro and In Vivo. Nat Prod Commun 2020. [DOI: 10.1177/1934578x20902558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
This study aimed to investigate the effect of Cordyceps militaris extract on the proliferation and apoptosis of carboplatin- resistant SKOV-3 and determine the underlying mechanisms for overcoming carboplatin resistance in human ovarian cancer. We cultured the carboplatin-resistant SKOV-3 cells in vitro until the exponential growth phase and then treated with different concentrations of C. militaris for 24, 48, and 72 hours. We performed cell proliferation assay, cell morphological change assessment using transmission electron microscopy, apoptosis assay, and immunoblotting to measure the protein expression of caspase-3 and -8, poly (ADP-ribose) polymerase (PARP)-1, B-cell lymphoma (Bcl)-2, and activating transcription factor 3 (ATF3)/TP53 signaling-related proteins. As a result, C. militaris reduced the viability of carboplatin-resistant SKOV-3 and induced morphological disruptions in a dose- and time-dependent manner. The gene expression profiles indicated a reprogramming pattern of the previously known and unknown genes and transcription factors associated with the action of TCTN3 on carboplatin-resistant SKOV-3 cells. We also confirmed the C. militaris-induced activation of the ATF3/TP53 pathway. Immunoblotting indicated that cotreatment of C. militaris and carboplatin-mediated ATF3/TP53 upregulation induced apoptosis in the carboplatin-resistant SKOV-3 cells, which are involved in the serial activation of pro-apoptotic proteins, including Bcl-2, Bax, caspases, and PARP-1. Further, when the ATF3 and TP53 expression increased, the CHOP and PUMA expressions were upregulated. Consequently, the upregulated CHOP/PUMA expression activated the positive regulation of the apoptotic signaling pathway. In addition, it decreased the Bcl-2 expression, leading to marked ovarian cancer cells sensitive to carboplatin by enhancing apoptosis. We then corroborated these results using in vivo experiments. Taken together, C. militaris inhibits carboplatin-resistant SKOV-3 cell proliferation and induces apoptosis possibly through ATF3/TP53 signaling upregulation and CHOP/PUMA activation. Therefore, our findings provide new insights into the treatment of carboplatin-resistant ovarian cancer using C. militaris.
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Affiliation(s)
- Eunbi Jo
- Division of Analytical Science, Korea Basic Science Institute, Daejeon, Republic of Korea
- Department of Life Science and Research Institute for Natural Sciences, College of Natural Sciences, Hanyang University, Seoul, Republic of Korea
| | - Hyun-Jin Jang
- Division of Analytical Science, Korea Basic Science Institute, Daejeon, Republic of Korea
- Department of Biological Sciences, Sungkyunkwan University, Suwon, Republic of Korea
| | - Kyeong E. Yang
- Division of Analytical Science, Korea Basic Science Institute, Daejeon, Republic of Korea
| | - Min S. Jang
- Division of Biological Science and Technology, Yonsei University, Wonju, Republic of Korea
| | - Yang H. Huh
- Electron Microscopy Research Center, Korea Basic Science Institute, Cheongju, Republic of Korea
| | - Hwa-Seung Yoo
- East-West Cancer Center, Daejeon University, Republic of Korea
| | - JunSoo Park
- Division of Biological Science and Technology, Yonsei University, Wonju, Republic of Korea
| | - Ik-Soon Jang
- Division of Analytical Science, Korea Basic Science Institute, Daejeon, Republic of Korea
- Division of Analytical Science, University of Science and Technology, Daejeon, Republic of Korea
| | - Soo J. Park
- Department of Sasang Constitutional Medicine, College of Korean Medicine, Woosuk University, Jeonju, Republic of Korea
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12
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Wong KM, Song J, Saini V, Wong YH. Small Molecules as Drugs to Upregulate Metastasis Suppressors in Cancer Cells. Curr Med Chem 2019; 26:5876-5899. [PMID: 29788870 DOI: 10.2174/0929867325666180522090842] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Revised: 03/20/2018] [Accepted: 05/18/2018] [Indexed: 12/26/2022]
Abstract
It is well-recognized that the majority of cancer-related deaths is attributed to metastasis, which can arise from virtually any type of tumor. Metastasis is a complex multistep process wherein cancer cells must break away from the primary tumor, intravasate into the circulatory or lymphatic systems, extravasate, proliferate and eventually colonize secondary sites. Since these molecular processes involve the coordinated actions of numerous proteins, targeted disruptions of key players along these pathways represent possible therapeutic interventions to impede metastasis formation and reduce cancer mortality. A diverse group of proteins with demonstrated ability to inhibit metastatic colonization have been identified and they are collectively known as metastasis suppressors. Given that the metastasis suppressors are often downregulated in tumors, drug-induced re-expression or upregulation of these proteins represents a promising approach to limit metastasis. Indeed, over 40 compounds are known to exhibit efficacy in upregulating the expression of metastasis suppressors via transcriptional or post-transcriptional mechanisms, and the most promising ones are being evaluated for their translational potentials. These small molecules range from natural products to drugs in clinical use and they apparently target different molecular pathways, reflecting the diverse nature of the metastasis suppressors. In this review, we provide an overview of the different classes of compounds known to possess the ability to upregulate one or more metastasis suppressors, with an emphasis on their mechanisms of action and therapeutic potentials.
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Affiliation(s)
- Ka Ming Wong
- Division of Life Science and the Biotechnology Research Institute, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Jiaxing Song
- Division of Life Science and the Biotechnology Research Institute, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Vasu Saini
- Division of Life Science and the Biotechnology Research Institute, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Yung H Wong
- Division of Life Science and the Biotechnology Research Institute, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong.,State Key Laboratory of Molecular Neuroscience, and the Molecular Neuroscience Center, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong.,Guangdong Provincial Key Laboratory of Brain Science, Disease and Drug Development, HKUST Shenzhen Research Institute, Shenzhen, China
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13
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Gong Y, Yang Y, Tian S, Chen H. Different Role of Caveolin-1 Gene in the Progression of Gynecological Tumors. Asian Pac J Cancer Prev 2019; 20:3259-3268. [PMID: 31759347 PMCID: PMC7062999 DOI: 10.31557/apjcp.2019.20.11.3259] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2019] [Indexed: 12/13/2022] Open
Abstract
Caveolin-1 (Cav-1), an integral membrane protein, is a principal component of caveolae and has been reported to play a promoting or inhibiting role in cancer progression. Gynecologic tumor is a group of tumors that affect the tissue and organs of the female reproductive system, especially cervical cancer. Cervical cancer, as one of the most common cancers, severely affects female health in developing countries in particular because of its high morbidity and mortality. This review summarizes some mechanisms of Cav-1 in the development and progression of gynecological tumors. The role of Cav-1 in tumorigenesis, including dysregulation of cell cycle, apoptosis and autophagy, adhesion, invasion, and metastasis, such as the formation of invadopodia and matrix metalloproteinase degradation are presented in detail. In addition, Cav-1 modulates autophagy and the formation of invadopodia and target regulated by miRNAs to affect tumor progress. Taken together, we find that, no matter Cav-1 expression in the tumor or stromal cells , Cav-1 has paradoxical role in different types of gynecological tumors in vivo or in vitro and even in the same tumor from the same organ.
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Affiliation(s)
- Yan Gong
- Department of Pathology, Zhongnan Hospital of Wuhan University, Wuhan, P. R. China
| | - Yuhan Yang
- Department of Pathology, School of Basic Medical Science, Wuhan University, Wuhan, P. R. China
| | - Sufang Tian
- Department of Pathology, Zhongnan Hospital of Wuhan University, Wuhan, P. R. China
| | - Honglei Chen
- Department of Pathology, Zhongnan Hospital of Wuhan University, Wuhan, P. R. China
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14
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Miguel CA, Raggio MC, Villar MJ, Gonzalez SL, Coronel MF. Anti-allodynic and anti-inflammatory effects of 17α-hydroxyprogesterone caproate in oxaliplatin-induced peripheral neuropathy. J Peripher Nerv Syst 2019; 24:100-110. [PMID: 30680838 DOI: 10.1111/jns.12307] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 01/08/2019] [Accepted: 01/22/2019] [Indexed: 12/11/2022]
Abstract
Chemotherapy-induced peripheral neuropathy is a disabling condition induced by several frequently used chemotherapeutic drugs including the front-line agent oxaliplatin (OXA). Symptoms are predominantly sensory with the development of neuropathic pain. Alternative dosing protocols and treatment discontinuation are the only available therapeutic strategies. The aim of our work was to evaluate the potential of a synthetic derivative of progesterone, 17α-hydroxyprogesterone caproate (HPGC), in the prevention and treatment of OXA-evoked painful neuropathy. We also evaluated glial activation at the dorsal root ganglia (DRG) and spinal cord levels as a possible target mechanism underlying HPGC actions. Male rats were injected with OXA and HPGC following a prophylactic (HPGCp) or therapeutic (HPGCt) scheme (starting either before or after chemotherapy). The development of hypersensitivity and allodynic pain and the expression of neuronal and glial activation markers were evaluated. When compared to control animals, those receiving OXA showed a significant decrease in paw mechanical and thermal thresholds, with the development of allodynia. Animals treated with HPGCp showed patterns of response similar to those detected in control animals, while those treated with HPGCt showed a suppression of both hypersensitivities after HPGC administration. We also observed a significant increase in the mRNA levels of activating transcription factor 3, the transcription factor (c-fos), glial fibrillary acidic protein, ionized calcium binding adaptor protein 1, interleukin 1 beta (IL-1β) and tumor necrosis factor alpha (TNFα) in DRG and spinal cord of OXA-injected animals, and significantly lower levels in rats receiving OXA and HPGC. These results show that HPGC administration reduces neuronal and glial activation markers and is able to both prevent and suppress OXA-induced allodynia, suggesting a promising therapeutic strategy.
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Affiliation(s)
- Constanza A Miguel
- Laboratorio de Nocicepción y Dolor Neuropático, Instituto de Biología y Medicina Experimental - CONICET, Buenos Aires, Argentina
| | - María C Raggio
- Laboratorio de Nocicepción y Dolor Neuropático, Instituto de Biología y Medicina Experimental - CONICET, Buenos Aires, Argentina
| | - Marcelo J Villar
- Instituto de Investigaciones en Medicina Traslacional, Universidad Austral - CONICET, Buenos Aires, Argentina
| | - Susana L Gonzalez
- Laboratorio de Nocicepción y Dolor Neuropático, Instituto de Biología y Medicina Experimental - CONICET, Buenos Aires, Argentina.,Departamento de Bioquímica Humana, Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - María F Coronel
- Laboratorio de Nocicepción y Dolor Neuropático, Instituto de Biología y Medicina Experimental - CONICET, Buenos Aires, Argentina.,Facultad de Ciencias Biomédicas, Universidad Austral - CONICET, Buenos Aires, Argentina
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15
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Pedernera E, Gómora MJ, Morales-Vásquez F, Pérez-Montiel D, Mendez C. Progesterone reduces cell survival in primary cultures of endometrioid ovarian cancer. J Ovarian Res 2019; 12:15. [PMID: 30736825 PMCID: PMC6367846 DOI: 10.1186/s13048-019-0486-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Accepted: 01/22/2019] [Indexed: 01/16/2023] Open
Abstract
Background Ovarian cancer is the most lethal of all gynecologic malignancies. The relationship between sexual steroids receptors and ovarian cancer progression has been largely evaluated. The presence of progesterone receptors has been associated with an increase of a disease-free period and overall survival in patients with ovarian carcinoma. In the present study, primary cultures of ovarian carcinoma obtained from 35 patients diagnosed with epithelial ovarian cancer were evaluated for cell survival after treatment with 10− 8 M of 17β-estradiol, progesterone, testosterone and dihydrotestosterone. Results The results were analyzed considering histological subtypes: low grade serous, high grade serous, endometrioid and mucinous carcinoma; clear cell carcinoma was not included due to failure in obtaining successful cultures of this subtype. A significant reduction of cell survival was observed after progesterone treatment in endometrioid ovarian carcinoma. Changes were not observed in low grade serous, high grade serous and mucinous carcinoma. The effect of progesterone was related to the presence of progesterone receptor (PR), a 43% reduction in the cell number was observed in PR (+) endometrioid ovarian carcinoma. Conclusions This study supports the importance of progesterone and the presence of progesterone receptor in the reduction of ovarian cancer progression in the endometrioid ovarian carcinoma.
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Affiliation(s)
- Enrique Pedernera
- Departamento de Embriología, Facultad de Medicina, Universidad Nacional Autónoma de México, 04510, Ciudad de México, Mexico
| | - María J Gómora
- Departamento de Embriología, Facultad de Medicina, Universidad Nacional Autónoma de México, 04510, Ciudad de México, Mexico
| | - Flavia Morales-Vásquez
- Departamento de Oncología Médica, Instituto Nacional de Cancerología, Secretaría de Salud de México, Ciudad de México, Mexico
| | - Delia Pérez-Montiel
- Departamento de Patología, Instituto Nacional de Cancerología, Secretaría de Salud de México, Ciudad de México, Mexico
| | - Carmen Mendez
- Departamento de Embriología, Facultad de Medicina, Universidad Nacional Autónoma de México, 04510, Ciudad de México, Mexico.
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16
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Metformin inhibits proliferation and growth hormone secretion of GH3 pituitary adenoma cells. Oncotarget 2018; 8:37538-37549. [PMID: 28380462 PMCID: PMC5514928 DOI: 10.18632/oncotarget.16556] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2016] [Accepted: 02/06/2017] [Indexed: 12/16/2022] Open
Abstract
Metformin is an anti-hyperglycemic agent used to treat diabetes, and recent evidence suggests it has antitumor efficacy. Because growth hormone-secreting pituitary adenoma (GH-PA) patients have a high incidence of diabetes frequently treated with metformin, we assessed the antitumor effect of metformin on GH-PA. We found that metformin effectively inhibited proliferation and induced apoptosis in the GH-PA cell line GH3. We detected a decrease in mitochondrial membrane potential (MMP), an increase in expression of pro-apoptotic proteins, and a decrease in expression of an anti-apoptotic protein in metformin-treated GH3 cells, which suggests involvement of the mitochondrial-mediated apoptosis pathway. Inhibition of AMPK, which is activated by metformin, failed to reverse the antiproliferative effect. ATF3 was upregulated by metformin, and its knockdown significantly reduced metformin-induced apoptosis. In addition, GH secretion was inhibited by metformin through suppression of STAT3 activity independently of AMPK. Metformin also significantly suppressed cellular proliferation and GH secretion in primary human GH-PA cells. Metformin also significantly inhibited GH3 cell proliferation and GH secretion in vivo. ATF3 upregulation and p-STAT3 downregulation were confirmed in xenografts. These findings suggest metformin is a potentially promising therapeutic agent for the treatment of GH-PA, particularly in patients with diabetes.
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17
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Bokhari AA, Baker TM, Dorjbal B, Waheed S, Zahn CM, Hamilton CA, Maxwell GL, Syed V. Nestin suppression attenuates invasive potential of endometrial cancer cells by downregulating TGF-β signaling pathway. Oncotarget 2018; 7:69733-69748. [PMID: 27626172 PMCID: PMC5342511 DOI: 10.18632/oncotarget.11947] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Accepted: 09/02/2016] [Indexed: 12/27/2022] Open
Abstract
Nestin, an intermediate filament protein and a stem cell marker is expressed in several tumors. Until recently, little was known about the expression levels and the role of Nestin in endometrial cancer. Compared to the immortalized endometrial epithelial cell line EM-E6/E7-TERT, endometrial cancer cell lines express high to moderate levels of Nestin. Furthermore, endometrial tumors and tumor cell lines have a cancer stem-like cell subpopulation expressing CD133. Among the cancer lines, AN3CA and KLE cells exhibited both a significantly higher number of CD133+ cells and expressed Nestin at higher levels than Ishikawa cells. Knockdown of Nestin in AN3CA and KLE increased cells in G0/G1 phase of the cell cycle, whereas overexpression in Ishikawa decreased cells in G0/G1 phase and increased cells in S-phase. Nestin knockdown cells showed increased p21, p27, and PNCA levels and decreased expression of cyclin-D1 and D3. In contrast, Nestin overexpression revealed an inverse expression pattern of cell cycle regulatory proteins. Nestin knockdown inhibited cancer cell growth and invasive potential by downregulating TGF-β signaling components, MMP-2, MMP-9, vimentin, SNAIL, SLUG, Twist, N-cadherin, and upregulating the epithelial cell marker E-cadherin whereas the opposite was observed with Nestin overexpressing Ishikawa cells. Nestin knockdown also inhibited, while overexpression promoted invadopodia formation and pFAK expression. Knockdown of Nestin significantly reduced tumor volume in vivo. Finally, progesterone inhibited Nestin expression in endometrial cancer cells. These results suggest that Nestin can be a therapeutic target for cancer treatment.
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Affiliation(s)
- Amber A Bokhari
- Uniformed Services University, Department of Obstetrics and Gynecology, Bethesda, MD 20814, USA
| | - Tabari M Baker
- Uniformed Services University, Department of Obstetrics and Gynecology, Bethesda, MD 20814, USA
| | - Batsukh Dorjbal
- Uniformed Services University, Department of Obstetrics and Gynecology, Bethesda, MD 20814, USA
| | - Sana Waheed
- Uniformed Services University, Department of Obstetrics and Gynecology, Bethesda, MD 20814, USA
| | - Christopher M Zahn
- American College of Obstetricians and Gynecologists, Washington, DC 20024, USA
| | - Chad A Hamilton
- Uniformed Services University, Department of Obstetrics and Gynecology, Bethesda, MD 20814, USA.,Women's Health Integrated Research Center at Inova Health System, Department of Defense Gynecologic Cancer Center of Excellence, Annandale, VA 22003, USA.,John P. Murtha Cancer Center at Water Reed National Military Medical Center, Bethesda, MD 20889, USA
| | - G Larry Maxwell
- Women's Health Integrated Research Center at Inova Health System, Department of Defense Gynecologic Cancer Center of Excellence, Annandale, VA 22003, USA.,John P. Murtha Cancer Center at Water Reed National Military Medical Center, Bethesda, MD 20889, USA.,Inova Fairfax Hospital, Department of Obstetrics and Gynecology, Falls Church, VA 22042, USA
| | - Viqar Syed
- Uniformed Services University, Department of Obstetrics and Gynecology, Bethesda, MD 20814, USA.,John P. Murtha Cancer Center at Water Reed National Military Medical Center, Bethesda, MD 20889, USA.,Uniformed Services University, Department of Molecular and Cell Biology, Bethesda, MD 20814, USA
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18
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Chüeh AC, Tse JWT, Dickinson M, Ioannidis P, Jenkins L, Togel L, Tan B, Luk I, Davalos-Salas M, Nightingale R, Thompson MR, Williams BRG, Lessene G, Lee EF, Fairlie WD, Dhillon AS, Mariadason JM. ATF3 Repression of BCL-X L Determines Apoptotic Sensitivity to HDAC Inhibitors across Tumor Types. Clin Cancer Res 2017; 23:5573-5584. [PMID: 28611196 PMCID: PMC5600837 DOI: 10.1158/1078-0432.ccr-17-0466] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Revised: 04/27/2017] [Accepted: 06/09/2017] [Indexed: 12/13/2022]
Abstract
Purpose: Histone deacetylase inhibitors (HDACi) are epigenome-targeting small molecules approved for the treatment of cutaneous T-cell lymphoma and multiple myeloma. They have also demonstrated clinical activity in acute myelogenous leukemia, non-small cell lung cancer, and estrogen receptor-positive breast cancer, and trials are underway assessing their activity in combination regimens including immunotherapy. However, there is currently no clear strategy to reliably predict HDACi sensitivity. In colon cancer cells, apoptotic sensitivity to HDACi is associated with transcriptional induction of multiple immediate-early (IE) genes. Here, we examined whether this transcriptional response predicts HDACi sensitivity across tumor type and investigated the mechanism by which it triggers apoptosis.Experimental Design: Fifty cancer cell lines from diverse tumor types were screened to establish the correlation between apoptotic sensitivity, induction of IE genes, and components of the intrinsic apoptotic pathway.Results: We show that sensitivity to HDACi across tumor types is predicted by induction of the IE genes FOS, JUN, and ATF3, but that only ATF3 is required for HDACi-induced apoptosis. We further demonstrate that the proapoptotic function of ATF3 is mediated through direct transcriptional repression of the prosurvival factor BCL-XL (BCL2L1) These findings provided the rationale for dual inhibition of HDAC and BCL-XL, which we show strongly cooperate to overcome inherent resistance to HDACi across diverse tumor cell types.Conclusions: These findings explain the heterogeneous responses of tumor cells to HDACi-induced apoptosis and suggest a framework for predicting response and expanding their therapeutic use in multiple cancer types. Clin Cancer Res; 23(18); 5573-84. ©2017 AACR.
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Affiliation(s)
| | - Janson W T Tse
- Ludwig Institute for Cancer Research, Melbourne, Australia
- Olivia Newton-John Cancer Research Institute, Heidelberg, Victoria, Australia
- Department of Medicine, University of Melbourne, Parkville, Victoria, Australia
| | | | - Paul Ioannidis
- Olivia Newton-John Cancer Research Institute, Heidelberg, Victoria, Australia
- School of Cancer Medicine, La Trobe University, Bundoora, Victoria, Australia
| | - Laura Jenkins
- Olivia Newton-John Cancer Research Institute, Heidelberg, Victoria, Australia
- School of Cancer Medicine, La Trobe University, Bundoora, Victoria, Australia
| | - Lars Togel
- Ludwig Institute for Cancer Research, Melbourne, Australia
- Olivia Newton-John Cancer Research Institute, Heidelberg, Victoria, Australia
- School of Cancer Medicine, La Trobe University, Bundoora, Victoria, Australia
| | - BeeShin Tan
- Ludwig Institute for Cancer Research, Melbourne, Australia
| | - Ian Luk
- Ludwig Institute for Cancer Research, Melbourne, Australia
- Olivia Newton-John Cancer Research Institute, Heidelberg, Victoria, Australia
- Department of Medicine, University of Melbourne, Parkville, Victoria, Australia
| | - Mercedes Davalos-Salas
- Ludwig Institute for Cancer Research, Melbourne, Australia
- Olivia Newton-John Cancer Research Institute, Heidelberg, Victoria, Australia
- School of Cancer Medicine, La Trobe University, Bundoora, Victoria, Australia
| | - Rebecca Nightingale
- Ludwig Institute for Cancer Research, Melbourne, Australia
- Olivia Newton-John Cancer Research Institute, Heidelberg, Victoria, Australia
- School of Cancer Medicine, La Trobe University, Bundoora, Victoria, Australia
| | - Matthew R Thompson
- Hudson Institute of Medical Research and Department of Molecular and Translational Sciences, Monash University, Clayton, Victoria
| | - Bryan R G Williams
- Hudson Institute of Medical Research and Department of Molecular and Translational Sciences, Monash University, Clayton, Victoria
| | | | - Erinna F Lee
- Olivia Newton-John Cancer Research Institute, Heidelberg, Victoria, Australia
- School of Cancer Medicine, La Trobe University, Bundoora, Victoria, Australia
- Department of Biochemistry and Genetics, La Trobe University, Bundoora, Victoria, Australia
| | - Walter D Fairlie
- Olivia Newton-John Cancer Research Institute, Heidelberg, Victoria, Australia
- School of Cancer Medicine, La Trobe University, Bundoora, Victoria, Australia
- Department of Biochemistry and Genetics, La Trobe University, Bundoora, Victoria, Australia
| | - Amardeep S Dhillon
- Olivia Newton-John Cancer Research Institute, Heidelberg, Victoria, Australia
- School of Cancer Medicine, La Trobe University, Bundoora, Victoria, Australia
| | - John M Mariadason
- Ludwig Institute for Cancer Research, Melbourne, Australia.
- Olivia Newton-John Cancer Research Institute, Heidelberg, Victoria, Australia
- School of Cancer Medicine, La Trobe University, Bundoora, Victoria, Australia
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Vert A, Castro J, Ribó M, Benito A, Vilanova M. Activating transcription factor 3 is crucial for antitumor activity and to strengthen the antiviral properties of Onconase. Oncotarget 2017; 8:11692-11707. [PMID: 28035074 PMCID: PMC5355296 DOI: 10.18632/oncotarget.14302] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2016] [Accepted: 11/30/2016] [Indexed: 12/18/2022] Open
Abstract
Onconase is a ribonuclease that presents both antitumor and antiviral properties linked to its ribonucleolytic activity and represents a new class of RNA-damaging drugs. It has reached clinical trials for the treatment of several cancers and human papilloma virus warts. Onconase targets different RNAs in the cell cytosol but Onconase-treated cells present features that are different from a simple arrest of protein synthesis. We have used microarray-derived transcriptional profiling to identify Onconase-regulated genes in two ovarian cancer cell lines (NCI/ADR-RES and OVCAR-8). RT-qPCR analyses have confirmed the microarray findings. We have identified a network of up-regulated genes implicated in different signaling pathways that may explain the cytotoxic effects exerted by Onconase. Among these genes, activating transcription factor 3 (ATF3) plays a central role in the key events triggered by Onconase in treated cancer cells that finally lead to apoptosis. This mechanism, mediated by ATF3, is cell-type independent. Up-regulation of ATF3 may also explain the antiviral properties of this ribonuclease because this factor is involved in halting viral genome replication, keeping virus latency or preventing viral oncogenesis. Finally, Onconase-regulated genes are different from those affected by nuclear-directed ribonucleases.
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Affiliation(s)
- Anna Vert
- Laboratori d'Enginyeria de Proteïnes, Departament de Biologia, Facultat de Ciències, Universitat de Girona, Campus de Montilivi, 17003, Girona, Spain.,Institut d'Investigació Biomèdica de Girona Josep Trueta, (IdIBGi), Girona, Spain
| | - Jessica Castro
- Laboratori d'Enginyeria de Proteïnes, Departament de Biologia, Facultat de Ciències, Universitat de Girona, Campus de Montilivi, 17003, Girona, Spain.,Institut d'Investigació Biomèdica de Girona Josep Trueta, (IdIBGi), Girona, Spain
| | - Marc Ribó
- Laboratori d'Enginyeria de Proteïnes, Departament de Biologia, Facultat de Ciències, Universitat de Girona, Campus de Montilivi, 17003, Girona, Spain.,Institut d'Investigació Biomèdica de Girona Josep Trueta, (IdIBGi), Girona, Spain
| | - Antoni Benito
- Laboratori d'Enginyeria de Proteïnes, Departament de Biologia, Facultat de Ciències, Universitat de Girona, Campus de Montilivi, 17003, Girona, Spain.,Institut d'Investigació Biomèdica de Girona Josep Trueta, (IdIBGi), Girona, Spain
| | - Maria Vilanova
- Laboratori d'Enginyeria de Proteïnes, Departament de Biologia, Facultat de Ciències, Universitat de Girona, Campus de Montilivi, 17003, Girona, Spain.,Institut d'Investigació Biomèdica de Girona Josep Trueta, (IdIBGi), Girona, Spain
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Cheng X, Liu J, Shan H, Sun L, Huang C, Yan Q, Jiang R, Ding L, Jiang Y, Zhou J, Yan G, Sun H. Activating transcription factor 3 promotes embryo attachment via up-regulation of leukemia inhibitory factor in vitro. Reprod Biol Endocrinol 2017; 15:42. [PMID: 28577574 PMCID: PMC5457579 DOI: 10.1186/s12958-017-0260-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2016] [Accepted: 05/23/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND A receptive endometrium is essential for maternal-embryonic molecular communication during implantation. However, the specific molecular regulatory mechanisms of the endometrial capacity remain poorly understood. Here, we examined activating transcription factor 3 (ATF3) expression in human endometria and the functional effect of ATF3 on embryo attachment in vitro. METHODS Immunohistochemistry (IHC) was used to assess the ATF3 expression patterns in human endometria. Quantitative real-time PCR (qRT-PCR), western blotting and immunofluorescence (IF) studies were applied to explore ATF3 expression in Ishikawa cells upon estrogen (E2) and medroxyprogesterone acetate (MPA) treatment. qRT-PCR and western blotting were performed to inspect LIF (leukemia inhibitory factor) expression after enhancement or inhibition of ATF3, and a luciferase reporter assay and ChIP-PCR were used to confirm the regulatory mechanism of ATF3 to LIF. Endometrial epithelial capacity was assessed by an in vitro model of attachment of BeWo spheroids to Ishikawa cells. Western blotting was performed to compare the expression of ATF3 in endometrial samples of recurrent implantation failure (RIF) patients with that in samples from fertile women (FER) who had undergone no less than one successful embryo transplantation. RESULTS ATF3 was located in human endometrial epithelial cells and stromal cells and was significantly induced by E2 and MPA in Ishikawa cells. Adenovirus-mediated overexpression of ATF3 in Ishikawa cells activated LIF promoter activity and enhanced its expression. Accordingly, the stimulation of BeWo spheroid adhesion promoted by ATF3 was inhibited by pretreatment with a specific antibody against LIF via the antibody-blocking assay. Moreover, ATF3 was aberrantly decreased in the endometria of RIF patients. CONCLUSIONS Our findings suggest that ATF3 plays a significant role in regulating human endometrial receptivity and embryo attachment in vitro via up-regulation of leukemia inhibitory factor. TRIAL REGISTRATION Construction and management of the Nanjing multi-center biobank. No. 2013-081-01 . Registered 10 Dec. 2013.
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Affiliation(s)
- Xi Cheng
- 0000 0004 1800 1685grid.428392.6Reproductive Medicine Center, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, 210008 People’s Republic of China
- Center of Reproductive Medicine, Nanjing Jinling Hospital, the Medical School of Nanjing University, Nanjing, 210002 China
| | - Jingyu Liu
- 0000 0004 1800 1685grid.428392.6Reproductive Medicine Center, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, 210008 People’s Republic of China
| | - Huizhi Shan
- 0000 0004 1800 1685grid.428392.6Reproductive Medicine Center, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, 210008 People’s Republic of China
| | - Lihua Sun
- grid.412523.3Reproductive Medicine Center, Shanghai Ninth People’s Hospital Affiliated Shanghai JiaTong University School of Medicine, Shanghai, 200011 People’s Republic of China
| | - Chenyang Huang
- 0000 0004 1800 1685grid.428392.6Reproductive Medicine Center, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, 210008 People’s Republic of China
| | - Qiang Yan
- 0000 0004 1800 1685grid.428392.6Reproductive Medicine Center, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, 210008 People’s Republic of China
| | - Ruiwei Jiang
- 0000 0004 1800 1685grid.428392.6Reproductive Medicine Center, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, 210008 People’s Republic of China
| | - Lijun Ding
- 0000 0004 1800 1685grid.428392.6Reproductive Medicine Center, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, 210008 People’s Republic of China
| | - Yue Jiang
- 0000 0004 1800 1685grid.428392.6Reproductive Medicine Center, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, 210008 People’s Republic of China
| | - Jianjun Zhou
- 0000 0004 1800 1685grid.428392.6Reproductive Medicine Center, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, 210008 People’s Republic of China
| | - Guijun Yan
- 0000 0004 1800 1685grid.428392.6Reproductive Medicine Center, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, 210008 People’s Republic of China
- Collaborative Innovation Platform for Reproductive Biology and Technology of Nanjing University Medical School, Nanjing, 210008 People’s Republic of China
| | - Haixiang Sun
- 0000 0004 1800 1685grid.428392.6Reproductive Medicine Center, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, 210008 People’s Republic of China
- Collaborative Innovation Platform for Reproductive Biology and Technology of Nanjing University Medical School, Nanjing, 210008 People’s Republic of China
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Li X, Zhou X, Li Y, Zu L, Pan H, Liu B, Shen W, Fan Y, Zhou Q. Activating transcription factor 3 promotes malignance of lung cancer cells in vitro. Thorac Cancer 2017; 8:181-191. [PMID: 28239957 PMCID: PMC5415490 DOI: 10.1111/1759-7714.12421] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Revised: 12/27/2016] [Accepted: 12/28/2016] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Lung cancer remains the most common cause of cancer-related death, with high rates of recurrence and poor outcomes. An abnormally high expression of activating transcription factor 3 (ATF3) in various cancers suggests an oncogenic role; however, its function in lung cancer is largely unknown. METHODS Sixty-four pairs of lung cancer tissues were collected for ATF3 expression analysis by quantitative real-time PCR, immunoblotting, and immunohistochemistry staining. Correlations between ATF3 expression with clinicopathological features and overall survival were analyzed. ATF3 expression in a panel of lung cancer cell lines together with normal bronchial epithelial Beas-2B cells was also determined. Human H1299 and A549 cells were used for ATF3 knockdown and/or overexpression assays. Alterations in cell proliferation, cell cycle attribution, migration, and invasion were all assessed in vitro. RESULTS Increased ATF3 messenger RNA and protein expression were observed in lung cancer tissues/cells compared with normal tissues/cells. High tumorous ATF3 expression was significantly correlated with positive advanced tumor grade, lymph node metastasis, and shorter overall survival. Experimentally, we found that RNA interference mediated knockdown of ATF3 significantly inhibited the cell proliferation, cell cycle progression, migration, and invasion capacities of lung cancer cells in vitro, whereas forced expression of ATF3 did the opposite. CONCLUSION Upregulation of ATF3 in lung cancer promotes cell proliferation, migration, and invasion, and may represent a novel therapeutic target for lung cancer.
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Affiliation(s)
- Xuebing Li
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Xuexia Zhou
- Department of Neuropathology, Tianjin Key Laboratory of Injuries, Variations and Regeneration of the Nervous System, Key Laboratory of Post-trauma Neuro-repair and Regeneration in Central Nervous System of Education Ministry, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Yongwen Li
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Lingling Zu
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Hongli Pan
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Boning Liu
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Wang Shen
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Yaguang Fan
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Qinghua Zhou
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital, Tianjin, China.,Sichuan Lung Cancer Institute, Sichuan Lung Cancer Center, West China Hospital, Sichuan University, Chengdu, China
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22
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Jing Y, Shan X, Mu F, Qin N, Zhu H, Liu D, Yuan S, Xu R. Associations of the Novel Polymorphisms of Periostin and Platelet-Derived Growth Factor Receptor-Like Genes with Egg Production Traits in Local Chinese Dagu Hens. Anim Biotechnol 2016; 27:208-16. [DOI: 10.1080/10495398.2016.1169191] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Yang Jing
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin, China
| | - Xuesong Shan
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin, China
| | - Fang Mu
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin, China
| | - Ning Qin
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin, China
| | - HongYan Zhu
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin, China
| | - Dehui Liu
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin, China
| | - Shuguo Yuan
- Jilin Grain Group Agriculture and Livestock Co., Ltd., Changchun, Jilin, China
| | - Rifu Xu
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin, China
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Luo N, Guo J, Chen L, Yang W, Qu X, Cheng Z. ARHGAP10, downregulated in ovarian cancer, suppresses tumorigenicity of ovarian cancer cells. Cell Death Dis 2016; 7:e2157. [PMID: 27010858 PMCID: PMC4823924 DOI: 10.1038/cddis.2015.401] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Revised: 11/17/2015] [Accepted: 11/30/2015] [Indexed: 12/14/2022]
Abstract
Rho GTPase-activating proteins (RhoGAPs) are implicated in the development and progression of ovarian cancer. ARHGAP10 is a member of RhoGAP proteins and inactivates Cdc42 by converting GTP-bound form to GDP-bound form. Here, we aimed to evaluate ARHGAP10 expression profile and functions in ovarian cancer. The decreased expression of ARHGAP10 was found in 77.3% (58/75) of ovarian cancer tissues, compared with their non-tumorous counterparts. Furthermore, overall survival in ovarian cancer patients with higher expression of ARHGAP10 was longer than those with lower expression. Ectopic expression of ARHGAP10 in two ovarian cancer cell lines with lower expression of ARHGAP10 (A2780 and HO-8910) dramatically suppressed cell proliferation in vitro. In nude mice, its stable overexpression significantly inhibited the tumorigenicity of A2780 cells. We further demonstrated that overexpression of ARHGAP10 significantly inhibited cell adhesion, migration and invasion, resulted in cell arrest in G1 phase of cell cycle and a significant increase of apoptosis. Moreover, ARHGAP10 interacted with Cdc42 and overexpression of ARHGAP10 inhibited the activity of Cdc42 in A2780 cells. Gene set enrichment analysis on The Cancer Genome Atlas dataset showed that KEGG cell cycle, replication and base excision repair (BER) pathways were correlatively with the ARHGAP10 expression, which was further confirmed in ovarian cancer cells by western blotting. Hence, ARHGAP10 may serve as a tumor suppressor through inactivating Cdc42, as well as inhibiting cell cycle, replication and BER pathways. Our data suggest an important role of ARHGAP10 in the molecular etiology of cancer and implicate the potential application of ARHGAP10 in cancer therapy.
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Affiliation(s)
- N Luo
- Department of Gynecology & Obstetrics, Yangpu Hospital, School of Medicine, Tongji University, Shanghai 200090, China.,Institute of Gynecological Minimally Invasive Medicine, School of Medicine, Tongji University, Shanghai 200090, China
| | - J Guo
- Department of Gynecology & Obstetrics, Yangpu Hospital, School of Medicine, Tongji University, Shanghai 200090, China.,Institute of Gynecological Minimally Invasive Medicine, School of Medicine, Tongji University, Shanghai 200090, China
| | - L Chen
- Department of Gynecology & Obstetrics, Yangpu Hospital, School of Medicine, Tongji University, Shanghai 200090, China.,Institute of Gynecological Minimally Invasive Medicine, School of Medicine, Tongji University, Shanghai 200090, China
| | - W Yang
- Department of Gynecology & Obstetrics, Yangpu Hospital, School of Medicine, Tongji University, Shanghai 200090, China.,Institute of Gynecological Minimally Invasive Medicine, School of Medicine, Tongji University, Shanghai 200090, China
| | - X Qu
- Department of Gynecology & Obstetrics, Yangpu Hospital, School of Medicine, Tongji University, Shanghai 200090, China.,Institute of Gynecological Minimally Invasive Medicine, School of Medicine, Tongji University, Shanghai 200090, China
| | - Z Cheng
- Department of Gynecology & Obstetrics, Yangpu Hospital, School of Medicine, Tongji University, Shanghai 200090, China.,Institute of Gynecological Minimally Invasive Medicine, School of Medicine, Tongji University, Shanghai 200090, China
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Nguyen HT, Jia W, Beedle AM, Kennedy EJ, Murph MM. Lysophosphatidic Acid Mediates Activating Transcription Factor 3 Expression Which Is a Target for Post-Transcriptional Silencing by miR-30c-2-3p. PLoS One 2015; 10:e0139489. [PMID: 26418018 PMCID: PMC4587950 DOI: 10.1371/journal.pone.0139489] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Accepted: 09/14/2015] [Indexed: 11/18/2022] Open
Abstract
Although microRNAs (miRNAs) are small, non-protein-coding entities, they have important roles in post-transcriptional regulation of most of the human genome. These small entities generate fine-tuning adjustments in the expression of mRNA, which can mildly or massively affect the abundance of proteins. Previously, we found that the expression of miR-30c-2-3p is induced by lysophosphatidic acid and has an important role in the regulation of cell proliferation in ovarian cancer cells. The goal here is to confirm that ATF3 mRNA is a target of miR-30c-2-3p silencing, thereby further establishing the functional role of miR-30c-2-3p. Using a combination of bioinformatics, qRT-PCR, immunoblotting and luciferase assays, we uncovered a regulatory pathway between miR-30c-2-3p and the expression of the transcription factor, ATF3. Lysophosphatidic acids triggers the expression of both miR-30c-2-3p and ATF3, which peak at 1 h and are absent 8 h post stimulation in SKOV-3 and OVCAR-3 serous ovarian cancer cells. The 3´-untranslated region (3´-UTR) of ATF3 was a predicted, putative target for miR-30c-2-3p, which we confirmed as a bona-fide interaction using a luciferase reporter assay. Specific mutations introduced into the predicted site of interaction between miR-30c-2-3p and the 3´-UTR of ATF3 alleviated the suppression of the luciferase signal. Furthermore, the presence of anti-miR-30c-2-3p enhanced ATF3 mRNA and protein after lysophosphatidic acid stimulation. Thus, the data suggest that after the expression of ATF3 and miR-30c-2-3p are elicited by lysophosphatidic acid, subsequently miR-30c-2-3p negatively regulates the expression of ATF3 through post-transcriptional silencing, which prevents further ATF3-related outcomes as a consequence of lysophosphatidic acid signaling.
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Affiliation(s)
- Ha T. Nguyen
- Department of Pharmaceutical and Biomedical Sciences, The University of Georgia, College of Pharmacy, 240 W. Green Street, Athens, Georgia 30602, United States of America
| | - Wei Jia
- Department of Pharmaceutical and Biomedical Sciences, The University of Georgia, College of Pharmacy, 240 W. Green Street, Athens, Georgia 30602, United States of America
| | - Aaron M. Beedle
- Department of Pharmaceutical and Biomedical Sciences, The University of Georgia, College of Pharmacy, 240 W. Green Street, Athens, Georgia 30602, United States of America
| | - Eileen J. Kennedy
- Department of Pharmaceutical and Biomedical Sciences, The University of Georgia, College of Pharmacy, 240 W. Green Street, Athens, Georgia 30602, United States of America
| | - Mandi M. Murph
- Department of Pharmaceutical and Biomedical Sciences, The University of Georgia, College of Pharmacy, 240 W. Green Street, Athens, Georgia 30602, United States of America
- * E-mail:
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Tse ACK, Li JW, Chan TF, Wu RSS, Lai KP. Hypoxia induces miR-210, leading to anti-apoptosis in ovarian follicular cells of marine medaka Oryzias melastigma. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2015; 165:189-196. [PMID: 26074452 DOI: 10.1016/j.aquatox.2015.06.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Revised: 05/29/2015] [Accepted: 06/02/2015] [Indexed: 06/04/2023]
Abstract
Hypoxia is a major global problem that impairs reproductive functions and reduces the quality and quantity of gametes and the fertilization success of marine fish. Nevertheless, the detailed molecular mechanism underlying hypoxia-induced female reproductive impairment remains largely unknown. There is increasing evidence that miRNA is vital in regulating ovarian functions and is closely associated with female fertility in humans. Certain miRNAs that regulate apoptotic genes can be induced by hypoxia, resulting in cell apoptosis. Using primary ovarian follicular cells of the marine medaka, Oryzias melastigma, as a model, we investigated the response of miR-210 to hypoxic stress in ovarian tissues to see if it would interrupt reproductive functions. A significant induction of miR-210 was found in primary ovarian follicular cells exposed to hypoxia, and gene ontology analysis further highlighted the potential roles of miR-210 in cell proliferation, cell differentiation, and cell apoptosis. A number of miR-210 target apoptotic genes, including Deleted in liver cancer 1 protein (DLC1), STE20-like serine/threonine-protein kinase (SLK), tumor necrosis factor receptor superfamily member 10b (TNFRSF10B), RNA binding motif protein 25 (RBM25), and Ubiquitin-specific-processing protease 7 (USP7), were identified. We further showed that ectopic expression of miR-210 would result in down-regulation of these apoptotic genes. On the other hand, the inhibition of miR-210 promoted apoptotic cell death and the expression of apoptotic marker - caspase 3 in follicular cells under hypoxic treatment, supporting the regulatory role of miR-210 in ovarian cell apoptosis. This study provides new insights on how hypoxia induces miR-210, leading to anti-apoptosis in ovarian follicular cells in fish, which is fundamentally important in environmental sciences and reproductive biology.
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Affiliation(s)
- Anna Chung-Kwan Tse
- School of Biological Sciences, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China; State Key Laboratory in Marine Pollution, Hong Kong SAR, China
| | - Jing-Woei Li
- School of Life Sciences, Hong Kong Bioinformatics Centre, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Ting-Fung Chan
- School of Life Sciences, Hong Kong Bioinformatics Centre, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Rudolf Shiu-Sun Wu
- School of Biological Sciences, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China; State Key Laboratory in Marine Pollution, Hong Kong SAR, China
| | - Keng-Po Lai
- School of Biological Sciences, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China; State Key Laboratory in Marine Pollution, Hong Kong SAR, China.
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Xie JJ, Xie YM, Chen B, Pan F, Guo JC, Zhao Q, Shen JH, Wu ZY, Wu JY, Xu LY, Li EM. ATF3 functions as a novel tumor suppressor with prognostic significance in esophageal squamous cell carcinoma. Oncotarget 2015; 5:8569-82. [PMID: 25149542 PMCID: PMC4226705 DOI: 10.18632/oncotarget.2322] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
ATF3 was a transcription factor involved in the progression of certain cancers. Here, we sought to explore the expression and biological function of ATF3 in esophageal squamous cell carcinomas (ESCC). The prognostic significance of ATF3 expression was evaluated in 150 ESCC samples and 21 normal squamous cell epithelium tissues. Results showed that ATF3 was down-regulated in ESCC lesions compared with paired non-cancerous tissues and low tumorous ATF3 expression significantly correlated with shorter overall survival (OS) and disease-free survival (DFS). Cox regression analysis confirmed that ATF3 expression was an independent prognostic factor. Experimentally, forced expression of ATF3 led to decreased growth and invasion properties of ESCC cells in vitro and in vivo, whereas knockdown of ATF3 did the opposite. Furthermore, ATF3 upregulated the expression of MDM2 by increasing the nuclear translocation of P53 and formed an ATF3/MDM2/MMP-2 complex that facilitated MMP-2 degradation, which subsequently led to inhibition of cell invasion. Finally, we showed that Cisplatin could restrain the invasion of ESCC cells by inducing the expression of ATF3 via P53 signaling. Combined, our findings highlight a suppressed role for ATF3 in ESCC and targeting ATF3 might be a potential therapeutic strategy.
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Affiliation(s)
- Jian-Jun Xie
- Key Laboratory of Molecular Biology in High Cancer Incidence Coastal Chaoshan Area of Guangdong Higher Education Institutes, Medical College of Shantou University, Shantou 515041, P. R. China. Department of Biochemistry and Molecular Biology, Medical College of Shantou University, Shantou 515041, P. R. China
| | - Yang-Min Xie
- Key Laboratory of Molecular Biology in High Cancer Incidence Coastal Chaoshan Area of Guangdong Higher Education Institutes, Medical College of Shantou University, Shantou 515041, P. R. China. Department of Experimental Animal Center, Medical College of Shantou University, Shantou 515041, P. R. China
| | - Bo Chen
- Key Laboratory of Molecular Biology in High Cancer Incidence Coastal Chaoshan Area of Guangdong Higher Education Institutes, Medical College of Shantou University, Shantou 515041, P. R. China. Institute of Oncologic Pathology, Medical College of Shantou University, Shantou 515041, P. R. China
| | - Feng Pan
- Key Laboratory of Molecular Biology in High Cancer Incidence Coastal Chaoshan Area of Guangdong Higher Education Institutes, Medical College of Shantou University, Shantou 515041, P. R. China. Department of Biochemistry and Molecular Biology, Medical College of Shantou University, Shantou 515041, P. R. China
| | - Jin-Cheng Guo
- Key Laboratory of Molecular Biology in High Cancer Incidence Coastal Chaoshan Area of Guangdong Higher Education Institutes, Medical College of Shantou University, Shantou 515041, P. R. China. Department of Biochemistry and Molecular Biology, Medical College of Shantou University, Shantou 515041, P. R. China
| | - Qing Zhao
- Key Laboratory of Molecular Biology in High Cancer Incidence Coastal Chaoshan Area of Guangdong Higher Education Institutes, Medical College of Shantou University, Shantou 515041, P. R. China. Institute of Oncologic Pathology, Medical College of Shantou University, Shantou 515041, P. R. China
| | - Jin-Hui Shen
- Department of Pathology, Shantou Central Hospital, Affiliated Shantou Hospital of Sun Yat-Sen University, Shantou 515041, P. R. China
| | - Zhi-Yong Wu
- Key Laboratory of Molecular Biology in High Cancer Incidence Coastal Chaoshan Area of Guangdong Higher Education Institutes, Medical College of Shantou University, Shantou 515041, P. R. China. Department of Oncologic Surgery, Shantou Central Hospital, Affiliated Shantou Hospital of Sun Yat-Sen University, Shantou 515041, P. R. China
| | - Jian-Yi Wu
- Key Laboratory of Molecular Biology in High Cancer Incidence Coastal Chaoshan Area of Guangdong Higher Education Institutes, Medical College of Shantou University, Shantou 515041, P. R. China. Department of Biochemistry and Molecular Biology, Medical College of Shantou University, Shantou 515041, P. R. China
| | - Li-Yan Xu
- Key Laboratory of Molecular Biology in High Cancer Incidence Coastal Chaoshan Area of Guangdong Higher Education Institutes, Medical College of Shantou University, Shantou 515041, P. R. China. Institute of Oncologic Pathology, Medical College of Shantou University, Shantou 515041, P. R. China
| | - En-Min Li
- Key Laboratory of Molecular Biology in High Cancer Incidence Coastal Chaoshan Area of Guangdong Higher Education Institutes, Medical College of Shantou University, Shantou 515041, P. R. China. Department of Biochemistry and Molecular Biology, Medical College of Shantou University, Shantou 515041, P. R. China
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Liu YF, Yang A, Liu W, Wang C, Wang M, Zhang L, Wang D, Dong JF, Li M. NME2 reduces proliferation, migration and invasion of gastric cancer cells to limit metastasis. PLoS One 2015; 10:e0115968. [PMID: 25700270 PMCID: PMC4336288 DOI: 10.1371/journal.pone.0115968] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2014] [Accepted: 12/03/2014] [Indexed: 02/07/2023] Open
Abstract
Gastric cancer is one of the most common malignancies and has a high rate of metastasis. We hypothesize that NME2 (Nucleoside Diphosphate Kinase 2), which has previously been considered as an anti-metastatic gene, plays a role in the invasiveness of gastric cancer cells. Using a tissue chip technology and immunohistochemistry, we demonstrated that NME2 expression was associated with levels of differentiation of gastric cancer cells and their metastasis into the lymph nodes. When the NME2 gene product was over-expressed by ;in vitro stable transfection, cells from BGC823 and MKN45 gastric cancer cell lines had reduced rates of proliferation, migration, and invasion through the collagen matrix, suggesting an inhibitory activity of NME2 in the propagation and invasion of gastric cancer. NME2 could, therefore, severe as a risk marker for gastric cancer invasiveness and a potential new target for gene therapy to enhance or induce NME2 expression.
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Affiliation(s)
- Yan-fei Liu
- Institute of Pathology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
- Department of Pathology, Xi’an Children’s Hospital, Xi’an, China
| | - Aijun Yang
- Institute of Pathology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
| | - Wei Liu
- Institute of Pathology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
| | - Chenyu Wang
- Institute of Pathology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
| | - Min Wang
- Institute of Pathology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
| | - Lihan Zhang
- Institute of Pathology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
| | - Dongcang Wang
- Institute of Pathology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
| | - Jing-fei Dong
- Puget Sound Blood Center, Seattle, Washington, United States of America
- Division of Hematology, Department of Medicine, University of Washington, School of Medicine, Seattle, Washington, United States of America
| | - Min Li
- Institute of Pathology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, Lanzhou University, Lanzhou, China
- * E-mail:
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Li Y, Tong Y, Wong YH. Regulatory functions of Nm23-H2 in tumorigenesis: insights from biochemical to clinical perspectives. Naunyn Schmiedebergs Arch Pharmacol 2014; 388:243-56. [PMID: 25413836 DOI: 10.1007/s00210-014-1066-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Accepted: 11/07/2014] [Indexed: 12/12/2022]
Abstract
Substantial effort has been directed at elucidating the functions of the products of the Nm23 tumor metastasis suppressor genes over the past two decades, with the ultimate goal of exploring their translational potentials in changing cancer patients' outcomes. Much attention has been focused on the better-known Nm23-H1, but despite having high sequence similarity, Nm23-H2 functions differently in many aspects. Besides acting as a metastasis suppressor, compelling data suggest that Nm23-H2 may modulate various tumor-associated biological events to enhance tumorigenesis in human solid tumors and hematological malignancies. Linkage to tumorigenesis may occur through the ability of Nm23-H2 to regulate transcription, cell proliferation, apoptosis, differentiation, and telomerase activity. In this review, we examine the linkages of Nm23-H2 to tumorigenesis in terms of its biochemical and structural properties and discuss its potential role in various tumor-associated events.
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Affiliation(s)
- Yuanjun Li
- Division of Life Science and the Biotechnology Research Institute, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
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Banerjee S, Jha HC, Robertson ES. Regulation of the metastasis suppressor Nm23-H1 by tumor viruses. Naunyn Schmiedebergs Arch Pharmacol 2014; 388:207-24. [PMID: 25199839 DOI: 10.1007/s00210-014-1043-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Accepted: 08/21/2014] [Indexed: 12/16/2022]
Abstract
Metastasis is the most common cause of cancer mortality. To increase the survival of patients, it is necessary to develop more effective methods for treating as well as preventing metastatic diseases. Recent advancement of knowledge in cancer metastasis provides the basis for development of targeted molecular therapeutics aimed at the tumor cell or its interaction with the host microenvironment. Metastasis suppressor genes (MSGs) are promising targets for inhibition of the metastasis process. During the past decade, functional significance of these genes, their regulatory pathways, and related downstream effector molecules have become a major focus of cancer research. Nm23-H1, first in the family of Nm23 human homologues, is a well-characterized, anti-metastatic factor linked with a large number of human malignancies. Mounting evidence to date suggests an important role for Nm23-H1 in reducing virus-induced tumor cell motility and migration. A detailed understanding of the molecular association between oncogenic viral antigens with Nm23-H1 may reveal the underlying mechanisms for tumor virus-associated malignancies. In this review, we will focus on the recent advances to our understanding of the molecular basis of oncogenic virus-induced progression of tumor metastasis by deregulation of Nm23-H1.
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Affiliation(s)
- Shuvomoy Banerjee
- Department of Microbiology and Tumor Virology Program, Abramson Comprehensive Cancer Center, Perelman School of Medicine at the University of Pennsylvania, 201E Johnson Pavilion, 3610 Hamilton Walk, Philadelphia, PA, 19104, USA
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31
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Eo HJ, Park JH, Park GH, Lee MH, Lee JR, Koo JS, Jeong JB. Anti-inflammatory and anti-cancer activity of mulberry (Morus alba L.) root bark. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2014; 14:200. [PMID: 24962785 PMCID: PMC4074313 DOI: 10.1186/1472-6882-14-200] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/12/2014] [Accepted: 06/23/2014] [Indexed: 12/20/2022]
Abstract
Background Root bark of mulberry (Morus alba L.) has been used in herbal medicine as anti-phlogistic, liver protective, kidney protective, hypotensive, diuretic, anti-cough and analgesic agent. However, the anti-cancer activity and the potential anti-cancer mechanisms of mulberry root bark have not been elucidated. We performed in vitro study to investigate whether mulberry root bark extract (MRBE) shows anti-inflammatory and anti-cancer activity. Methods In anti-inflammatory activity, NO was measured using the griess method. iNOS and proteins regulating NF-κB and ERK1/2 signaling were analyzed by Western blot. In anti-cancer activity, cell growth was measured by MTT assay. Cleaved PARP, ATF3 and cyclin D1 were analyzed by Western blot. Results In anti-inflammatory effect, MRBE blocked NO production via suppressing iNOS over-expression in LPS-stimulated RAW264.7 cells. In addition, MRBE inhibited NF-κB activation through p65 nuclear translocation via blocking IκB-α degradation and ERK1/2 activation via its hyper-phosphorylation. In anti-cancer activity, MRBE deos-dependently induced cell growth arrest and apoptosis in human colorectal cancer cells, SW480. MRBE treatment to SW480 cells activated ATF3 expression and down-regulated cyclin D1 level. We also observed that MRBE-induced ATF3 expression was dependent on ROS and GSK3β. Moreover, MRBE-induced cyclin D1 down-regulation was mediated from cyclin D1 proteasomal degradation, which was dependent on ROS. Conclusions These findings suggest that mulberry root bark exerts anti-inflammatory and anti-cancer activity.
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Sato A, Nakama K, Watanabe H, Satake A, Yamamoto A, Omi T, Hiramoto A, Masutani M, Wataya Y, Kim HS. Role of activating transcription factor 3 protein ATF3 in necrosis and apoptosis induced by 5-fluoro-2'-deoxyuridine. FEBS J 2014; 281:1892-900. [PMID: 24529083 DOI: 10.1111/febs.12752] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2013] [Revised: 01/11/2014] [Accepted: 02/10/2014] [Indexed: 11/26/2022]
Abstract
Necrosis and apoptosis are the two major forms of cell death. We have studied the mechanisms that regulate the cell death observed during treatment of mouse cancer cell line FM3A with the anticancer drug 5-fluoro-2'-deoxyuridine (FUdR). To detect causal differences between necrosis and apoptosis, we exploited the necrosis in original clone F28-7 and the apoptosis in its variant F28-7-A that occur on treatment with FUdR. Activating transcription factor 3 (ATF3) was strongly induced during necrosis but not apoptosis. In addition, we found that ATF3 expression is regulated by heat shock protein 90 (HSP90) at the mRNA stage. Knockdown of Atf3 by siRNA in the F28-7 cells resulted in apoptotic morphology rather than necrotic morphology. These results suggest that ATF3 is a cell-death regulator in necrosis and apoptosis.
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Affiliation(s)
- Akira Sato
- Faculty of Pharmaceutical Sciences, Okayama University, Kita-ku, Japan; Division of Genome Stability Research, National Cancer Center Research Institute, Chuo-ku, Tokyo, Japan
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Kavandi L, Lee LR, Bokhari AA, Pirog JE, Jiang Y, Ahmad KA, Syed V. The Chinese herbsScutellaria baicalensisandFritillaria cirrhosatarget NFκB to inhibit proliferation of ovarian and endometrial cancer cells. Mol Carcinog 2013; 54:368-78. [DOI: 10.1002/mc.22107] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2013] [Revised: 10/07/2013] [Accepted: 10/23/2013] [Indexed: 01/19/2023]
Affiliation(s)
- Leyla Kavandi
- Department of Obstetrics and Gynecology; Uniformed Services University of the Health Sciences; Bethesda Maryland
| | - Laura R. Lee
- Department of Obstetrics and Gynecology; Uniformed Services University of the Health Sciences; Bethesda Maryland
| | - Amber A. Bokhari
- Department of Obstetrics and Gynecology; Uniformed Services University of the Health Sciences; Bethesda Maryland
| | - John E. Pirog
- Department of Acupuncture and Oriental Medicine; Northwestern Health Sciences University; Minneapolis Minnesota
| | - Yongping Jiang
- Department of Acupuncture and Oriental Medicine; Northwestern Health Sciences University; Minneapolis Minnesota
| | - Kashif A. Ahmad
- Department of Basic Sciences; Northwestern Health Sciences University; Minneapolis Minnesota
| | - Viqar Syed
- Department of Obstetrics and Gynecology; Uniformed Services University of the Health Sciences; Bethesda Maryland
- Department of Cell and Molecular Biology; Uniformed Services University of the Health Sciences; Bethesda Maryland
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Aktary Z, Pasdar M. Plakoglobin represses SATB1 expression and decreases in vitro proliferation, migration and invasion. PLoS One 2013; 8:e78388. [PMID: 24260116 PMCID: PMC3832639 DOI: 10.1371/journal.pone.0078388] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2013] [Accepted: 09/18/2013] [Indexed: 01/16/2023] Open
Abstract
Plakoglobin (γ-catenin) is a homolog of β-catenin with dual adhesive and signaling functions. Plakoglobin participates in cell-cell adhesion as a component of the adherens junction and desmosomes whereas its signaling function is mediated by its interactions with various intracellular protein partners. To determine the role of plakoglobin during tumorigenesis and metastasis, we expressed plakoglobin in the human tongue squamous cell carcinoma (SCC9) cells and compared the mRNA profiles of parental SCC9 cells and their plakoglobin-expressing transfectants (SCC9-PG). We observed that the mRNA levels of SATB1, the oncogenic chromatin remodeling factor, were decreased approximately 3-fold in SCC9-PG cells compared to parental SCC9 cells. Here, we showed that plakoglobin decreased levels of SATB1 mRNA and protein in SCC9-PG cells and that plakoglobin and p53 associated with the SATB1 promoter. Plakoglobin expression also resulted in decreased SATB1 promoter activity. These results were confirmed following plakoglobin expression in the very low plakoglobin expressing and invasive mammary carcinoma cell line MDA-MB-231 cells (MDA-231-PG). In addition, knockdown of endogenous plakoglobin in the non-invasive mammary carcinoma MCF-7 cells (MCF-7-shPG) resulted in increased SATB1 mRNA and protein. Plakoglobin expression also resulted in increased mRNA and protein levels of the metastasis suppressor Nm23-H1, a SATB1 target gene. Furthermore, the levels of various SATB1 target genes involved in tumorigenesis and metastasis were altered in MCF-7-shPG cells relative to parental MCF-7 cells. Finally, plakoglobin expression resulted in decreased in vitro proliferation, migration and invasion in different carcinoma cell lines. Together with the results of our previous studies, the data suggests that plakoglobin suppresses tumorigenesis and metastasis through the regulation of genes involved in these processes.
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Affiliation(s)
- Zackie Aktary
- Department of Cell Biology, University of Alberta, Edmonton, Alberta, Canada
| | - Manijeh Pasdar
- Department of Oncology, University of Alberta, Edmonton, Alberta, Canada
- Department of Cell Biology, University of Alberta, Edmonton, Alberta, Canada
- * E-mail:
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35
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Dai Z, Jin Y. Promoter methylation of the DLC‑1 gene and its inhibitory effect on human colon cancer. Oncol Rep 2013; 30:1511-7. [PMID: 23783552 DOI: 10.3892/or.2013.2551] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2013] [Accepted: 06/07/2013] [Indexed: 11/05/2022] Open
Abstract
Deleted in liver cancer‑1 (DLC‑1), a candidate tumor suppressor gene which is inactive in liver carcinogenesis, is located at 8p21.3, where deletions are frequently found in several types of human cancer. Promoter hypermethylation is an epigenetic mechanism leading to silencing of the gene expression, which may be the primary cause for the absence of DLC‑1. We investigated the expression of the DLC‑1 gene and the methylation of the DLC‑1 gene in colon cancer cell lines (Caco‑2, LoVo and HT‑29). The data showed that reduced or undetectable levels of DLC‑1 mRNA were found in HT‑29 by reverse transcription-polymerase chain reaction (RT‑PCR). By contrast, the DLC‑1 gene was significantly expressed in Caco‑2 and LoVo cells. These findings were in agreement with the data obtained from western blot analysis. To further determine whether aberrant methylation is a contributing factor to transcriptional inactivation of DLC‑1 in HT‑29, the methylation of promoter was examined using methylation‑specific PCR and sodium bisulfite genomic sequencing in LoVo and HT‑29 cells, which suggests that promoter hypermethylation accounts for silencing of the DLC‑1 gene in HT‑29 cells. Since DLC‑1 is a candidate tumor suppressor gene, we sought to determine whether DLC‑1 expression is associated with cell proliferation in colon cancer cell lines. RNA interference techniques were adopted to inhibit DLC‑1 expression in the LoVo cell line and resulted in inhibition of cell growth and reduced colony formation. Collectively, our observations suggest that hypermethylation is responsible for abrogating the function of the DLC‑1 gene in colon cancer and indicate a role of DLC‑1 in colon carcinogenesis.
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Affiliation(s)
- Zhensheng Dai
- Department of Hematology‑Oncology, Shanghai Pudong Hospital Affiliated to Fudan University, Shanghai 201399, P.R. China
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36
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Chen WT, Yang CH, Wu CC, Huang YC, Chai CY. Aberrant deleted in liver cancer-1 expression is associated with tumor metastasis and poor prognosis in urothelial carcinoma. APMIS 2013; 121:1131-8. [DOI: 10.1111/apm.12060] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2012] [Accepted: 02/03/2013] [Indexed: 01/15/2023]
Affiliation(s)
- Wan-Tzu Chen
- Department of Pathology; Kaohsiung Medical University Hospital; Kaohsiung Taiwan
| | - Ching-Hsiu Yang
- Department of Pathology; Kaohsiung Medical University Hospital; Kaohsiung Taiwan
| | - Chun-Chieh Wu
- Department of Pathology; Kaohsiung Medical University Hospital; Kaohsiung Taiwan
| | - Ya-Chun Huang
- Department of Pathology; College of Medicine; Kaohsiung Medical University; Kaohsiung Taiwan
| | - Chee-Yin Chai
- Department of Pathology; Kaohsiung Medical University Hospital; Kaohsiung Taiwan
- Department of Pathology; College of Medicine; Kaohsiung Medical University; Kaohsiung Taiwan
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Keita M, Bachvarova M, Morin C, Plante M, Gregoire J, Renaud MC, Sebastianelli A, Trinh XB, Bachvarov D. The RUNX1 transcription factor is expressed in serous epithelial ovarian carcinoma and contributes to cell proliferation, migration and invasion. Cell Cycle 2013; 12:972-86. [PMID: 23442798 DOI: 10.4161/cc.23963] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Previously, we have identified the RUNX1 gene as hypomethylated and overexpressed in post-chemotherapy (CT) primary cultures derived from epithelial ovarian cancer (EOC) patients, when compared with primary cultures derived from matched primary (prior to CT) tumors. Here we show that RUNX1 displays a trend of hypomethylation, although not significant, in omental metastases compared with primary EOC tumors. Surprisingly, RUNX1 displayed significantly higher expression not only in metastatic tissue, but also in high-grade primary tumors and even in low malignant potential tumors. The RUNX1 expression levels were almost identical in primary tumors and omental metastases, suggesting that RUNX1 hypomethylation might have a limited impact on its overexpression in advanced (metastatic) stage of the disease. Knockdown of the RUNX1 expression in EOC cells led to sharp decrease of cell proliferation and induced G 1 cell cycle arrest. Moreover, RUNX1 suppression significantly inhibited EOC cell migration and invasion. Gene expression profiling and consecutive network and pathway analyses confirmed these findings, as numerous genes and pathways known previously to be implicated in ovarian tumorigenesis, including EOC tumor invasion and metastasis, were found to be downregulated upon RUNX1 suppression, while a number of pro-apoptotic genes and some EOC tumor suppressor genes were induced. Taken together, our data are indicative for a strong oncogenic potential of the RUNX1 gene in EOC progression and suggest that RUNX1 might be a novel EOC therapeutic target. Further studies are needed to more completely elucidate the functional implications of RUNX1 and other members of the RUNX gene family in ovarian tumorigenesis.
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Affiliation(s)
- Mamadou Keita
- Department of Molecular Medicine, Laval University, Québec, QC, Canada
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38
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Modugno F, Laskey R, Smith AL, Andersen CL, Haluska P, Oesterreich S. Hormone response in ovarian cancer: time to reconsider as a clinical target? Endocr Relat Cancer 2012; 19:R255-79. [PMID: 23045324 PMCID: PMC3696394 DOI: 10.1530/erc-12-0175] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Ovarian cancer is the sixth most common cancer worldwide among women in developed countries and the most lethal of all gynecologic malignancies. There is a critical need for the introduction of targeted therapies to improve outcome. Epidemiological evidence suggests a critical role for steroid hormones in ovarian tumorigenesis. There is also increasing evidence from in vitro studies that estrogen, progestin, and androgen regulate proliferation and invasion of epithelial ovarian cancer cells. Limited clinical trials have shown modest response rates; however, they have consistently identified a small subset of patients that respond very well to endocrine therapy with few side effects. We propose that it is timely to perform additional well-designed trials that should include biomarkers of response.
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Affiliation(s)
- Francesmary Modugno
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh School of Medicine, Pennsylvania, USA
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39
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Liu G, Su L, Hao X, Zhong N, Zhong D, Singhal S, Liu X. Salermide up-regulates death receptor 5 expression through the ATF4-ATF3-CHOP axis and leads to apoptosis in human cancer cells. J Cell Mol Med 2012; 16:1618-28. [PMID: 21801305 PMCID: PMC3823229 DOI: 10.1111/j.1582-4934.2011.01401.x] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Sirtuins (a class III histone deacetylase) have emerged as novel targets for cancer therapy. Salermide, a reverse amide compound that inhibits Sirtuin 1 (Sirt1) and Sirtuin 2 (Sirt2), has been shown to induce apoptosis in human cancer cells. The mechanism underlying cellular apoptotic signalling by salermide remains unclear. In this study, we show that salermide up-regulates the expression of death receptor 5 (DR5) in human non-small cell lung cancer (NSCLC) cells. Blocking DR5 expression by gene silencing technology results in a decrease in activated forms of several pro-apoptotic proteins (caspase-8, caspase-9, caspase-3, PARP). Increasing DR5 protein expression correlates with salermide-induced apoptosis in human NSCLC cells. We discovered that IRE-1α, Bip, activating transcription factor 3 (ATF4), activating transcription factor 3 (ATF3) and C/EBP homologous protein (CHOP) are induced by salermide, which suggests that DR5-dependent apoptosis is induced by endoplasmic reticulum stress. Moreover, knockdown of Sirt1 and Sirt2 expression resulted in up-regulation of ATF4, CHOP and DR5. Transfected NSCLC cells with ATF4, ATF3 or CHOP siRNA results in a decline in pro-apoptotic proteins (such as caspase-8, caspase-9, caspase-3 and PARP) despite salermide treatment. We demonstrate that salermide induces expression of ATF4, and ATF4 up-regulates ATF3 and subsequently modulates CHOP. This suggests that DR5 is modulated by the ATF4-ATF3-CHOP axis in NSCLC after Sirt1/2 inhibition or salermide treatment. This study highlights the importance of DR5 up-regulation in apoptosis induced by Sirt1/2 inhibition and elucidates the underlying mechanism in human NSCLC cells.
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Affiliation(s)
- Guangbo Liu
- School of Life Sciences, Shandong University, Jinan, China
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40
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Abstract
Ovarian cancer is the sixth most common cancer worldwide among women in developed countries and the most lethal of all gynecologic malignancies. There is a critical need for the introduction of targeted therapies to improve outcome. Epidemiological evidence suggests a critical role for steroid hormones in ovarian tumorigenesis. There is also increasing evidence from in vitro studies that estrogen, progestin, and androgen regulate proliferation and invasion of epithelial ovarian cancer cells. Limited clinical trials have shown modest response rates; however, they have consistently identified a small subset of patients that respond very well to endocrine therapy with few side effects. We propose that it is timely to perform additional well-designed trials that should include biomarkers of response.
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41
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Song X, Lu F, Liu RY, Lei Z, Zhao J, Zhou Q, Zhang HT. Association between the ATF3 gene and non-small cell lung cancer. Thorac Cancer 2012; 3:217-223. [DOI: 10.1111/j.1759-7714.2011.00110.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
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42
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Effect of small interfering RNA transfection on FAK and DLC1 mRNA expression in OVCAR-3. Mol Biol Rep 2012; 39:9299-306. [PMID: 22760257 DOI: 10.1007/s11033-012-1724-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2012] [Accepted: 06/06/2012] [Indexed: 01/18/2023]
Abstract
RNA interference is an evolutionarily conserved cellular defense mechanism that protects cells from hostile genes and regulates the function of normal genes during growth and development. In this study, we established GFP-siFAK-DLC1 vector and transfect the vector into OVCAR-3 cells. RT-PCR and western blot analyses were performed for FAK, DLC1 mRNA, and protein expression in OVCAR-3 cells. ELISA method was used for caspase-3 and caspase-9 activities. These studies demonstrate that both recombinant pGFP-siFAK-DLC1 vector and pGFP-siCon-DLC1 vector may effectively promote DLC1 mRNA transcription and didn't affect siRNA effect. Recombinant vector (pGFP-siFAK-DLC1) may promote DLC1 gene expression, and effectively silence FAK gene expression. Silencing FAK mRNA expression and DLC1 mRNA expression may markedly enhance caspase-3 and caspase-9 activities in OVCAR-3 cells. These results showed that in ovarian cancer OVCAR-3 cell silencing FAK gene expression or / and increasing DLC-1 gene expression, could improve Caspase-3 and Caspase-9 protease activities. In the expression of DLC-1 and silence FAK expression group (double action group) effect was more significant as compared with the silence FAK gene group or expression of DLC-1 gene alone, difference was significant (p < 0.05).
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Kwon O, Soung NK, Thimmegowda NR, Jeong SJ, Jang JH, Moon DO, Chung JK, Lee KS, Kwon YT, Erikson RL, Ahn JS, Kim BY. Patulin induces colorectal cancer cells apoptosis through EGR-1 dependent ATF3 up-regulation. Cell Signal 2011; 24:943-50. [PMID: 22230687 DOI: 10.1016/j.cellsig.2011.12.017] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2011] [Revised: 11/30/2011] [Accepted: 12/21/2011] [Indexed: 11/16/2022]
Abstract
Patulin is a fungal mycotoxin of Aspergilus and Penicillium that is commonly found in rotting fruits and exerts its potential toxic effect mainly by reactive oxygen species (ROS) generation. However, the effect of patulin on cancer cells as well as its intracellular mechanism has been controversial and not clearly defined yet. In this study, patulin was found to induce G1/S accumulation and cell growth arrest accompanied by caspase-3 activation, PARP cleavage and ATF3 expression in human colon cancer cell line HCT116. Ser/Thr phosphorylation of a transcription factor, EGR-1, was increased while its expression did not change upon patulin treatment to the cells. Knockdown of ATF3 and EGR-1 using their respective siRNAs showed EGR-1 dependent ATF3 expression. Moreover, treatment of the cells with antioxidants N-acetylcysteine (NAC) and glutathione (GSH) revealed that patulin induced ATF3 expression and apoptosis were dependent on ROS generation. ATF3 expression was also increased by patulin in other colorectal cancer cell types, Caco2 and SW620. Collectively, our data present a new anti-cancer molecular mechanism of patulin, suggesting EGR-1 and ATF3 as critical targets for the development of anti-cancer chemotherapeutics. In this regard, patulin could be a candidate for the treatment of colorectal cancers.
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Affiliation(s)
- Osong Kwon
- Korea Research Institute of Bioscience and Biotechnology (KRIBB), 685-2 Ochang-eup, Cheongwon-gun 363-883, Republic of Korea
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Expression of membrane progesterone receptors (mPR/PAQR) in ovarian cancer cells: implications for progesterone-induced signaling events. Discov Oncol 2011; 1:167-76. [PMID: 21761364 DOI: 10.1007/s12672-010-0023-9] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Abstract
The high mortality rates associated with ovarian cancer are largely due to a lack of highly effective treatment options for advanced stage disease; a time when initial diagnosis most commonly occurs. Recent evidence suggests that the steroid hormone, progesterone, may possess anti-tumorigenic properties. With the discovery of a new class of membrane-bound progesterone receptors (mPRs) belonging to the progestin and adipoQ receptor (PAQR) gene family in the ovary, there are undefined mechanisms by which progesterone may inhibit tumor progression. Therefore, our goal was to define potential mPR-dependent signaling mechanisms operative in ovarian cancer cells. We detected abundant mPRα (PAQR7), mPRβ (PAQR8), and mPRγ (PAQR5), but not classical nuclear PR (A or B isoforms) mRNA expression and mPRα protein expression in a panel of commonly used ovarian cancer cell lines. In contrast to mPR action in breast cancer cells, progesterone alone failed to induce changes in cyclic adenosine monophosphate (cAMP) levels in ovarian cancer cells. However, progesterone enhanced cAMP production by β(1,2)-adrenergic receptors and increased isoproterenol-induced transcription from a cAMP response element (CRE)-driven reporter gene. Independently of β-adrenergic signaling, we additionally observed activation of both JNK1/2 and p38 MAPK in response to progesterone alone. This finding was supported by the results of a screen for potential mPR gene targets. Progesterone induced a significant increase in transcription of the pro-apoptotic marker BAX, whose activity and expression has been linked to JNK1/2 and p38 signaling. Inhibitors of JNK, but not p38, blocked progesterone-induced BAX expression. Taken together, these observations implicate at least two distinct signaling pathways that may be utilized by mPRs in ovarian cancer cells that exhibit regulatory genomic changes. These studies on mPR signaling in ovarian cancer lay the foundation for future work aimed at understanding how progesterone exerts its anti-tumorigenic effects in the ovary and suggest that pharmacologic activation of mPRs, abundantly expressed in ovarian cancers, may provide a new treatment option for patients with advanced stage disease.
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Maciag AE, Nandurdikar RS, Hong SY, Chakrapani H, Diwan B, Morris NL, Shami PJ, Shiao YH, Anderson LM, Keefer LK, Saavedra JE. Activation of the c-Jun N-terminal kinase/activating transcription factor 3 (ATF3) pathway characterizes effective arylated diazeniumdiolate-based nitric oxide-releasing anticancer prodrugs. J Med Chem 2011; 54:7751-8. [PMID: 22003962 PMCID: PMC3422893 DOI: 10.1021/jm2004128] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Improved therapies are needed for nonsmall cell lung cancer. Diazeniumdiolate-based nitric oxide (NO)-releasing prodrugs are a growing class of promising NO-based therapeutics. Recently, we have shown that O(2)-(2,4-dinitrophenyl) 1-[(4-ethoxycarbonyl)piperazin-1-yl]diazen-1-ium-1,2-diolate (JS-K, 1) is effective against nonsmall cell lung cancer (NSCLC) cells in culture and in vivo. Here we report mechanistic studies with compound 1 and its homopiperazine analogue and structural modification of these into more stable prodrugs. Compound 1 and its homopiperazine analogue were potent cytotoxic agents against NSCLC cells in vitro and in vivo, concomitant with activation of the SAPK/JNK stress pathway and upregulation of its downstream effector ATF3. Apoptosis followed these events. An aryl-substituted analogue, despite extended half-life in the presence of glutathione, did not activate JNK or have antitumor activity. The data suggest that rate of reactivity with glutathione and activation of JNK/ATF3 are determinants of cancer cell killing by these prodrugs.
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Affiliation(s)
- Anna E. Maciag
- Basic Science Program, SAIC-Frederick, Inc., National Cancer Institute, Frederick, MD 21702
| | - Rahul S. Nandurdikar
- Laboratory of Comparative Carcinogenesis, National Cancer Institute, Frederick, MD 21702
| | - Sam Y. Hong
- Laboratory of Comparative Carcinogenesis, National Cancer Institute, Frederick, MD 21702
| | - Harinath Chakrapani
- Department of Chemistry, Indian Institute of Science Education and Research, Pune 411008, India
| | - Bhalchandra Diwan
- Basic Science Program, SAIC-Frederick, Inc., National Cancer Institute, Frederick, MD 21702
| | - Nicole L. Morris
- Laboratory Animal Sciences Program, SAIC-Frederick, Inc., National Cancer Institute, Frederick, MD 21702
| | - Paul J. Shami
- Division of Hematology and Hematologic Malignancies, Huntsman Cancer Institute, University of Utah, Salt Lake City, UT 84112
| | - Yih-Horng Shiao
- Laboratory of Comparative Carcinogenesis, National Cancer Institute, Frederick, MD 21702
| | - Lucy M. Anderson
- Laboratory of Comparative Carcinogenesis, National Cancer Institute, Frederick, MD 21702
| | - Larry K. Keefer
- Laboratory of Comparative Carcinogenesis, National Cancer Institute, Frederick, MD 21702
| | - Joseph E. Saavedra
- Basic Science Program, SAIC-Frederick, Inc., National Cancer Institute, Frederick, MD 21702
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Thakur RK, Yadav VK, Kumar P, Chowdhury S. Mechanisms of non-metastatic 2 (NME2)-mediated control of metastasis across tumor types. Naunyn Schmiedebergs Arch Pharmacol 2011; 384:397-406. [PMID: 21556888 DOI: 10.1007/s00210-011-0631-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2011] [Accepted: 03/25/2011] [Indexed: 12/18/2022]
Abstract
Non-metastatic 23 [NM23/nucleoside diphosphate kinases (NDPK)] genes are the first discovered metastasis suppressor genes. More than two decades of research has demonstrated their roles in a variety of biological processes with NME1 and NME2 being most studied in the context of metastasis suppression. Although NME1 and NME2 share >85% homology at amino acid level, they show redundant as well as unique molecular functions. Phenotypic analyses of knockout (KO) mice for NM23 members (NDPK-A, B) and compound KO (A as well as B) showed requirement of both proteins in hematopoiesis suggesting shared functions in development disease. Several reviews have discussed NME1, however the role of NME2 appears to be relatively less understood in the context of metastasis suppression. Here, we focus on NME2 and by meta-analysis of gene expression from multiple tumor types, and survey of in vivo and vitro studies, suggest the possibility that NME2 may be one of the key factors in metastasis. This along with the relevance of normal physiological functions of NME2 in the context of metastasis is discussed. We further examined the genetic and epigenetic features of NME2 and NME1 gene promoters and found aspects of transcription control that could be unique to NME2/NME1. Findings on signaling pathways and small molecules which regulate the expression of NME2 that could be therapeutically important are also discussed.
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Affiliation(s)
- Ram Krishna Thakur
- Proteomics and Structural Biology Unit, Institute of Genomics and Integrative Biology, CSIR, Mall Road, Delhi, 110 007, India
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Lv D, Meng D, Zou FF, Fan L, Zhang P, Yu Y, Fang J. Activating transcription factor 3 regulates survivability and migration of vascular smooth muscle cells. IUBMB Life 2011; 63:62-9. [PMID: 21280179 DOI: 10.1002/iub.416] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Activating transcription factor 3 (ATF3) is a member of the ATF/CREB (CAMP responsive element binding protein) family of transcription factors. The expression and the function of ATF3 in vascular smooth muscle cells (VSMCs) remain unknown. The aim of this work is to determine the expression and possible function of ATF3 in VSMCs. We found that VSMCs expressed ATF3, and expression of ATF3 in VSMCs was induced by a variety of stimuli including serum, angiotensin II, and H(2)O(2). Knockdown of ATF3 induced apoptosis of VSMCs, caspase-3 cleavage, and cytochrome c release. The results suggest that ATF3 regulates survivability of VSMCs. Moreover, we found that overexpression of ATF3 promoted migration of VSMCs and induced expression of matrix metalloproteinase 1, 3, and 13. These results suggest that ATF3 plays a role in regulating migration of VSMCs. In addition, we found that the expression of ATF3 was upregulated in smooth muscle cells in the injured mouse femoral arteries compared with the uninjured control group. These results suggest that ATF3 is relevant to disease physiology.
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Affiliation(s)
- Dandan Lv
- Key Laboratory of Nutrition and Metabolism, The Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
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Cisplatin induces cytotoxicity through the mitogen-activated protein kinase pathways and activating transcription factor 3. Neoplasia 2010; 12:527-38. [PMID: 20651982 DOI: 10.1593/neo.92048] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2009] [Revised: 04/15/2010] [Accepted: 04/27/2010] [Indexed: 11/18/2022] Open
Abstract
The mechanisms underlying the proapoptotic effect of the chemotherapeutic agent, cisplatin, are largely undefined. Understanding the mechanisms regulating cisplatin cytotoxicity may uncover strategies to enhance the efficacy of this important therapeutic agent. This study evaluates the role of activating transcription factor 3 (ATF3) as a mediator of cisplatin-induced cytotoxicity. Cytotoxic doses of cisplatin and carboplatin treatments consistently induced ATF3 expression in five tumor-derived cell lines. Characterization of this induction revealed a p53, BRCA1, and integrated stress response-independent mechanism, all previously implicated in stress-mediated ATF3 induction. Analysis of mitogen-activated protein kinase (MAPK) pathway involvement in ATF3 induction by cisplatin revealed a MAPK-dependent mechanism. Cisplatin treatment combined with specific inhibitors to each MAPK pathway (c-Jun N-terminal kinase, extracellular signal-regulated kinase, and p38) resulted in decreased ATF3 induction at the protein level. MAPK pathway inhibition led to decreased ATF3 messenger RNA expression and reduced cytotoxic effects of cisplatin as measured by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide cell viability assay. In A549 lung carcinoma cells, targeting ATF3 with specific small hairpin RNA also attenuated the cytotoxic effects of cisplatin. Similarly, ATF3-/- murine embryonic fibroblasts (MEFs) were shown to be less sensitive to cisplatin-induced cytotoxicity compared with ATF3+/+ MEFs. This study identifies cisplatin as a MAPK pathway-dependent inducer of ATF3, whose expression influences cisplatin's cytotoxic effects.
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Guanine nucleotide exchange factors for RhoGTPases: good therapeutic targets for cancer therapy? Cell Signal 2010; 23:969-79. [PMID: 21044680 DOI: 10.1016/j.cellsig.2010.10.022] [Citation(s) in RCA: 85] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2010] [Accepted: 10/23/2010] [Indexed: 12/12/2022]
Abstract
Rho guanosine triphosphatases (GTPases) are a family of small proteins which function as molecular switches in a variety of signaling pathways following stimulation of cell surface receptors. RhoGTPases regulate numerous cellular processes including cytoskeleton organization, gene transcription, cell proliferation, migration, growth and cell survival. Because of their central role in regulating processes that are dysregulated in cancer, it seems reasonable that defects in the RhoGTPase pathway may be involved in the development of cancer. RhoGTPase activity is regulated by a number of protein families: guanine nucleotide exchange factors (GEFs), GTPase activating proteins (GAPs) and guanine nucleotide-dissociation inhibitors (GDIs). This review discusses the participation of RhoGTPases and their regulators, especially GEFs in human cancers. In particular, we focus on the involvement of the RhoGTPase GEF, Vav1, a hematopoietic specific signal transducer which is involved in human neuroblastoma, pancreatic ductal carcinoma and lung cancer. Finally, we summarize recent advances in the design and application of a number of molecules that specifically target individual RhoGTPases or their regulators or effectors, and discuss their potential for cancer therapy.
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Lo AKF, Dawson CW, Lo KW, Yu Y, Young LS. Upregulation of Id1 by Epstein-Barr virus-encoded LMP1 confers resistance to TGFbeta-mediated growth inhibition. Mol Cancer 2010; 9:155. [PMID: 20565867 PMCID: PMC2908095 DOI: 10.1186/1476-4598-9-155] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2010] [Accepted: 06/18/2010] [Indexed: 11/27/2022] Open
Abstract
Background Epstein-Barr virus (EBV)-encoded LMP1 protein is commonly expressed in nasopharyngeal carcinoma (NPC). LMP1 is a prime candidate for driving tumourigenesis given its ability to activate multiple signalling pathways and to alter the expression and activity of variety of downstream targets. Resistance to TGFβ-mediated cytostasis is one of the growth transforming effects of LMP1. Of the downstream targets manipulated by LMP1, the induction of Id1 and inactivation of Foxo3a appear particularly relevant to LMP1-mediated effects. Id1, a HLH protein is implicated in cell transformation and plays a role in cell proliferation, whilst Foxo3a, a transcription factor controls cell integrity and homeostasis by regulating apoptosis. The mechanism(s) by which LMP1 induces these effects have not been fully characterised. Results In this study, we demonstrate that the ability of LMP1 to induce the phosphorylation and inactivation of Foxo3a is linked to the upregulation of Id1. Furthermore, we show that the induction of Id1 is essential for the transforming function of LMP1 as over-expression of Id1 increases cell proliferation, attenuates TGFβ-SMAD-mediated transcription and renders cells refractory to TGFβ-mediated cytostasis. Id1 silencing in LMP1-expressing epithelial cells abolishes the inhibitory effect of LMP1 on TGFβ-mediated cell growth arrest and reduces the ability of LMP1 to attenuate SMAD transcriptional activity. In response to TGFβ stimulation, LMP1 does not abolish SMAD phosphorylation but inhibits p21 protein expression. In addition, we found the induction of Id1 in LMP1-expressing cells upon stimulation by TGFβ. We provide evidence that LMP1 suppresses the transcriptional repressor ATF3, possibly leading to the TGFβ-induced Id1 upregulation. Conclusion The current data provide novel information regarding the mechanisms by which LMP1 suppresses TGFβ-induced cytostasis, highlighting the importance of Id1 in LMP1 mediated cell transformation
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Affiliation(s)
- Angela K F Lo
- Cancer Research UK Cancer Centre, School of Cancer Sciences, University of Birmingham, Vincent Drive, Edgbaston, Birmingham B15 2TT, UK.
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