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Sui X, Zhang L, Zhang XF, Zhang Y. TRIB3-Regulated Akt Signal Pathway Affects Trophoblast Invasion in the Development of Preeclampsia. Am J Perinatol 2023; 40:1359-1366. [PMID: 34553361 DOI: 10.1055/s-0041-1735872] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
OBJECTIVE The aim of the study is to explore the mechanism of tribbles pseudokinase 3 (TRIB3)-regulated Akt pathway in the development of preeclampsia (PE). STUDY DESIGN TRIB3 expression in the placenta of PE patient was determined by quantitative reverse transcriptase polymerase chain reaction and western blotting. Then HTR-8/SVneo or JEG-3 cells were transfected and divided into Mock, Control siRNA, TRIB3 siRNA-1, and TRIB3 siRNA-2 groups. Cell proliferation, invasion, and migration were determined by MTT assay, Transwell assay, and wound healing test, while the expression of TRIB3 and Akt pathway was measured by western blotting. PE rats were treated with TRIB3 siRNA, and blood pressure, 24-hour urinary protein, as well as serum levels of sFlt-1 and vascular endothelial growth factor (VEGF) were measured. RESULTS The placenta of PE patients presented with increased TRIB3 expression. In comparison with Mock group, the proliferation, invasion, and migration of HTR-8/SVneo and JEG-3 cells in TRIB3 siRNA-1 group and TRIB3 siRNA-2 group increased, with decreased TRIB3 expression but enhanced expression of p-Akt/Akt, MMP-2, and MMP-9. Rats in PE group showed increases in mean arterial pressure, SBP, 24-hour urinary protein, and serum sFlt-1 levels, but decreases in serum VEGF levels, fetal weight, and placental efficiency. Moreover, TRIB3 expression was upregulated, while p-Akt/Akt was downregulated in the placenta of rats in PE group. However, indicators above were significantly improved in rats treated with TRIB3 siRNA. CONCLUSION TRIB3 was upregulated in the PE placenta, while silencing TRIB3 activated the Akt signaling pathway to promote the invasion and migration of trophoblast both in vitro and in vivo and ameliorated the development of PE symptoms in the PE rat model. KEY POINTS · The TRIB3 expression was increased in the placenta of PE patient. · Silencing TRIB3 activates Akt signal pathway.. · Silencing TRIB3 improves the pathological process of preeclampsia rat..
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Affiliation(s)
- Xin Sui
- Department of Obstetrics and Gynaecology, The First Affiliated Hospital of Yangtze University, Jingzhou, Hubei Province, China
| | - Lei Zhang
- Department of Obstetrics and Gynaecology, The First Affiliated Hospital of Yangtze University, Jingzhou, Hubei Province, China
| | - Xu-Feng Zhang
- Department of Obstetrics and Gynaecology, The First Affiliated Hospital of Yangtze University, Jingzhou, Hubei Province, China
| | - Ya Zhang
- Department of Obstetrics and Gynaecology, The First Affiliated Hospital of Yangtze University, Jingzhou, Hubei Province, China
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2
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Yang T, Zhang Y, Chen L, Thomas ER, Yu W, Cheng B, Li X. The potential roles of ATF family in the treatment of Alzheimer's disease. Biomed Pharmacother 2023; 161:114544. [PMID: 36934558 DOI: 10.1016/j.biopha.2023.114544] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 03/07/2023] [Accepted: 03/14/2023] [Indexed: 03/20/2023] Open
Abstract
Activating transcription factors, ATFs, is a family of transcription factors that activate gene expression and transcription by recognizing and combining the cAMP response element binding proteins (CREB). It is present in various viruses as a cellular gene promoter. ATFs is involved in regulating the mammalian gene expression that is associated with various cell physiological processes. Therefore, ATFs play an important role in maintaining the intracellular homeostasis. ATF2 and ATF3 is mostly involved in mediating stress responses. ATF4 regulates the oxidative metabolism, which is associated with the survival of cells. ATF5 is presumed to regulate apoptosis, and ATF6 is involved in the regulation of endoplasmic reticulum stress (ERS). ATFs is actively studied in oncology. At present, there has been an increasing amount of research on ATFs for the treatment of neurological diseases. Here, we have focused on the different types of ATFs and their association with Alzheimer's disease (AD). The level of expression of different ATFs have a significant difference in AD patients when compared to healthy control. Recent studies have suggested that ATFs are implicated in the pathogenesis of AD, such as neuronal repair, maintenance of synaptic activity, maintenance of cell survival, inhibition of apoptosis, and regulation of stress responses. In this review, the potential role of ATFs for the treatment of AD has been highlighted. In addition, we have systematically reviewed the progress of research on ATFs in AD. This review will provide a basic and innovative understanding on the pathogenesis and treatment of AD.
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Affiliation(s)
- Ting Yang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Science, Southwest Medical University, Luzhou 646000, China
| | - Yuhong Zhang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Science, Southwest Medical University, Luzhou 646000, China
| | - Lixuan Chen
- Department of Biochemistry and Molecular Biology, School of Basic Medical Science, Southwest Medical University, Luzhou 646000, China
| | | | - Wenjing Yu
- Department of Biochemistry and Molecular Biology, School of Basic Medical Science, Southwest Medical University, Luzhou 646000, China
| | - Bo Cheng
- Department of Urology, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China; Sichuan Clinical Research Center for Nephropathy, Luzhou 646000, China.
| | - Xiang Li
- Department of Biochemistry and Molecular Biology, School of Basic Medical Science, Southwest Medical University, Luzhou 646000, China.
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3
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Al-Hetty HRAK, Jabbar AD, Eremin VF, Jabbar AM, Jalil AT, Al-Dulimi AG, Gharban HAJ, Khan MUF, Saleh MM. The role of endoplasmic reticulum stress in endometriosis. Cell Stress Chaperones 2023; 28:145-150. [PMID: 36696012 PMCID: PMC10050460 DOI: 10.1007/s12192-023-01323-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 01/09/2023] [Accepted: 01/19/2023] [Indexed: 01/26/2023] Open
Abstract
Endometriosis is a chronic gynecologic disorder characterized by abnormal growth of endometrium-like tissues in the ectopic regions of the pelvic peritoneum. The pathophysiology of endometriosis is not completely understood; however, excessive endometrial cell proliferation together with resistance to apoptosis facilitates the migration, implantation, and survival of endometrial cells in the distant sites. Endoplasmic reticulum (ER) stress response (also called unfolded protein response) is a cellular defense mechanism triggered by ER stress. When severe enough, the so-called response initiates cell suicide, i.e., apoptosis. Therefore, therapeutic induction of ER stress in endometriotic cells could promote apoptosis and contribute to the management of disease. In this review, we discuss the pathogenic role of ER stress in endometriosis and the most recent findings regarding the induction of ER stress in connection with endometriosis.
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Affiliation(s)
| | | | - Vladimir F Eremin
- Republican Scientific and Practical Center for Transfusiology and Medical Biotechnologies, Minsk, Belarus
| | - Abeer Mohsen Jabbar
- College of Pharmacy, National University of Science and Technology, Nasiriyah, Dhi-Qar, Iraq
| | - Abduladheem Turki Jalil
- Department of Medical Laboratories Techniques, Al-Mustaqbal University College, Hilla, Babylon, Iraq.
| | - Ali G Al-Dulimi
- Department of Dentistry, Bilad Alrafidain University College, Diyala, 32001, Iraq
| | - Hasanain A J Gharban
- Department of Internal and Preventive Veterinary Medicine, College of Veterinary Medicine, Wasit University, Al-Kut, Iraq
| | | | - Marwan Mahmood Saleh
- Department of Biophysics, College of Applied Sciences, University of Anbar, Ramadi, Iraq
- College of Pharmacy, The Islamic University, Najaf, Iraq
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4
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Bai H, Kawahara M, Takahashi M. Identification of menaquinone-4 (vitamin K2) target genes in bovine endometrial epithelial cells in vitro. Theriogenology 2023; 198:183-193. [PMID: 36592516 DOI: 10.1016/j.theriogenology.2022.12.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Revised: 12/22/2022] [Accepted: 12/22/2022] [Indexed: 12/29/2022]
Abstract
The effect of vitamin K on bovine endometrial epithelial cells has not been thoroughly investigated. The objective of this study was to examine the effect of the biologically active form of vitamin K, menaquinone-4, on gene expression in bovine endometrial epithelial cells. First, we examined the mRNA and protein expression levels of UBIAD1, a menaquinone-4 biosynthetic enzyme. Second, we screened for potential target genes of menaquinone-4 in bovine endometrial epithelial cells using RNA-sequencing. We found 50 differentially expressed genes; 42 were upregulated, and 8 were downregulated. Among them, a dose-dependent response to menaquinone-4 was observed for the top three upregulated (TRIB3, IL6, and TNFAIP3) and downregulated (CDC6, ORC1, and RRM2) genes. It has been suggested that these genes play important roles in reproductive events. In addition, GDF15 and VEGFA, which are important for cellular functions as they are commonly involved in pathways, such as positive regulation of cell communication, cell differentiation, and positive regulation of MAPK cascade, were upregulated in endometrial epithelial cells by menaquinone-4 treatment. To the best of our knowledge, this is the first study showing the expression of UBIAD1 in the bovine uterus. Moreover, the study determined menaquinone-4 target genes in bovine endometrial epithelial cells, which may positively affect pregnancy with alteration of gene expression in cattle uterus.
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Affiliation(s)
- Hanako Bai
- Laboratory of Animal Breeding and Reproduction, Research Faculty of Agriculture, Hokkaido University, Kita-ku Kita 9 Nishi 9, Sapporo, 060-8589, Japan.
| | - Manabu Kawahara
- Laboratory of Animal Breeding and Reproduction, Research Faculty of Agriculture, Hokkaido University, Kita-ku Kita 9 Nishi 9, Sapporo, 060-8589, Japan.
| | - Masashi Takahashi
- Laboratory of Animal Breeding and Reproduction, Research Faculty of Agriculture, Hokkaido University, Kita-ku Kita 9 Nishi 9, Sapporo, 060-8589, Japan; Global Station for Food, Land and Water Resources, Global Institution for Collaborative Research and Education, Hokkaido University, Kita-ku Kita 9 Nishi 9, Sapporo, 060-0815, Japan.
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5
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The functions and molecular mechanisms of Tribbles homolog 3 (TRIB3) implicated in the pathophysiology of cancer. Int Immunopharmacol 2023; 114:109581. [PMID: 36527874 DOI: 10.1016/j.intimp.2022.109581] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 11/21/2022] [Accepted: 12/08/2022] [Indexed: 12/23/2022]
Abstract
Currently, cancer ranks as the second leading cause of death worldwide, and at the same time, the burden of cancer continues to increase. The underlying molecular pathways involved in the initiation and development of cancer are the subject of considerable research worldwide. Further understanding of these pathways may lead to new cancer treatments. Growing data suggest that Tribble's homolog 3 (TRIB3) is essential in oncogenesis in many types of cancer. The mammalian tribbles family's proteins regulate various cellular and physiological functions, such as the cell cycle, stress response, signal transduction, propagation, development, differentiation, immunity, inflammatory processes, and metabolism. To exert their activities, Tribbles proteins must alter key signaling pathways, including the mitogen-activated protein kinase (MAPK) and phosphatidylinositol 3 kinase (PI3K)/AKT pathways. Recent evidence supports that TRIB3 dysregulation has been linked to various diseases, including tumor development and chemoresistance. It has been speculated that TRIB3 may either promote or inhibit the onset and development of cancer. However, it is still unclear how TRIB3 performs this dual function in cancer. In this review, we present and discuss the most recent data on the role of TRIB3 in cancer pathophysiology and chemoresistance. Furthermore, we describe in detail the molecular mechanism TRIB3 regulates in cancer.
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6
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Sun D, Zhang M, Wei M, Wang Z, Qiao W, Liu P, Zhong X, Liang Y, Chen Y, Huang Y, Yu W. Ox-LDL-mediated ILF3 overexpression in gastric cancer progression by activating the PI3K/AKT/mTOR signaling pathway. Aging (Albany NY) 2022; 14:3887-3909. [PMID: 35507914 PMCID: PMC9134943 DOI: 10.18632/aging.204051] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Accepted: 04/21/2022] [Indexed: 11/25/2022]
Abstract
Background: This study aimed to investigate the relationship of dyslipidemia and interleukin-enhancer binding factor 3 (ILF3) in gastric cancer, and provide insights into the potential application of statins as an agent to prevent and treat gastric cancer. Methods: The expression levels of ILF3 in gastric cancer were examined with publicly available datasets such as TCGA, and western blotting and immunohistochemistry were performed to determine the expression of ILF3 in clinical specimens. The effects of ox-LDL on expression of ILF3 were further verified with western blot analyses. RNA sequencing, Kyoto Encyclopedia of Genes and Genomes (KEGG), Gene Ontology (GO), and Gene Set Enrichment Analysis (GSEA) pathway analyses were performed to reveal the potential downstream signaling pathway targets of ILF3. The effects of statins and ILF3 on PI3K/AKT/mTOR signaling pathway, cell proliferation, cell cycle, migration and invasion of gastric cancer cells were investigated with Edu assay, flow cytometry and transwell assay. Results: Immunohistochemistry and western blot demonstrated that the positive expression rates of ILF3 in gastric cancer tissues were higher than adjacent mucosa tissues. The ox-LDL promoted the expression of ILF3 in a time-concentration-dependent manner. ILF3 promoted the proliferation, cell cycle, migration and invasion by activating the PI3K/AKT/mTOR signaling pathway. Statins inhibited the proliferation, cell cycle, migration and invasion of gastric cancer by inhibiting the expression of ILF3. Conclusions: These findings demonstrate that ox-LDL promotes ILF3 overexpression to regulate gastric cancer progression by activating the PI3K/AKT/mTOR signaling pathway. Statins inhibits the expression of ILF3, which might be a new targeted therapy for gastric cancer.
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Affiliation(s)
- Danping Sun
- Department of Gastrointestinal Surgery, General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
| | - Mingxiang Zhang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese Ministry of Health and Chinese Academy of Medical Sciences, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
| | - Meng Wei
- Department of Gastrointestinal Surgery, General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
| | - Zhaoyang Wang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese Ministry of Health and Chinese Academy of Medical Sciences, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
| | - Wen Qiao
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese Ministry of Health and Chinese Academy of Medical Sciences, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
| | - Peng Liu
- Department of Gastrointestinal Surgery, General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
| | - Xin Zhong
- Department of Gastrointestinal Surgery, General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
| | - Yize Liang
- Department of Gastrointestinal Surgery, General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
| | - Yuanyuan Chen
- Department of Nursing Department, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
| | - Yadi Huang
- Department of Gastrointestinal Surgery, General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
| | - Wenbin Yu
- Department of Gastrointestinal Surgery, General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
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Deletion of TRIB3 disrupts the tumor progression induced by integrin αvβ3 in lung cancer. BMC Cancer 2022; 22:459. [PMID: 35473511 PMCID: PMC9044834 DOI: 10.1186/s12885-022-09593-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 04/22/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Integrin αvβ3 has been proposed as crucial determinant for tumor sustained progression and a molecular marker for the estimation of tumor angiogenesis. Our study suggested that integrin αvβ3 could efficiently promote lung cancer cell proliferation and stem-like phenotypes in a tribbles homolog 3 (TRIB3) dependent manner. RESULT Integrin αvβ3 could mediate the activation of FAK/AKT pro-survival signaling pathway. Meanwhile, activated TRIB3 interacted with AKT to upregulated FOXO1 and SOX2 expression, resulting in sustained tumor progression in lung cancer. Our further analysis revealed that TRIB3 was significantly upregulated in lung tumor tissues and correlated with the poor outcome in clinical patients, indicating the potential role of TRIB3 in diagnostic and prognostic estimation for patients with lung cancer. CONCLUSION Our study showed here for the first time that integrin αvβ3 promote lung cancer development by activating the FAK/AKT/SOX2 axis in a TRIB3 dependent signaling pathway, and interrupting TRIB3/AKT interaction significantly improved the outcome of chemotherapy in tumor-bearing mice, representing a promising therapeutic strategy in lung cancer.
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8
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Fernandes MT, Yassuda V, Bragança J, Link W, Ferreira BI, De Sousa-Coelho AL. Tribbles Gene Expression Profiles in Colorectal Cancer. GASTROINTESTINAL DISORDERS 2021; 3:218-236. [DOI: https:/doi.org/10.3390/gidisord3040021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/01/2023] Open
Abstract
Colorectal cancer (CRC) is the third most common cancer and the second leading cause of death due to cancer in the world. Therefore, the identification of novel druggable targets is urgently needed. Tribbles proteins belong to a pseudokinase family, previously recognized in CRC as oncogenes and potential therapeutic targets. Here, we analyzed the expression of TRIB1, TRIB2, and TRIB3 simultaneously in 33 data sets from CRC based on available GEO profiles. We show that all three Tribbles genes are overrepresented in CRC cell lines and primary tumors, though depending on specific features of the CRC samples. Higher expression of TRIB2 in the tumor microenvironment and TRIB3 overexpression in an early stage of CRC development, unveil a potential and unexplored role for these proteins in the context of CRC. Differential Tribbles expression was also explored in diverse cellular experimental conditions where either genetic or pharmacological approaches were used, providing novel hints for future research. This comprehensive bioinformatic analysis provides new insights into Tribbles gene expression and transcript regulation in CRC.
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9
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Tribbles Gene Expression Profiles in Colorectal Cancer. GASTROINTESTINAL DISORDERS 2021. [DOI: 10.3390/gidisord3040021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Colorectal cancer (CRC) is the third most common cancer and the second leading cause of death due to cancer in the world. Therefore, the identification of novel druggable targets is urgently needed. Tribbles proteins belong to a pseudokinase family, previously recognized in CRC as oncogenes and potential therapeutic targets. Here, we analyzed the expression of TRIB1, TRIB2, and TRIB3 simultaneously in 33 data sets from CRC based on available GEO profiles. We show that all three Tribbles genes are overrepresented in CRC cell lines and primary tumors, though depending on specific features of the CRC samples. Higher expression of TRIB2 in the tumor microenvironment and TRIB3 overexpression in an early stage of CRC development, unveil a potential and unexplored role for these proteins in the context of CRC. Differential Tribbles expression was also explored in diverse cellular experimental conditions where either genetic or pharmacological approaches were used, providing novel hints for future research. This comprehensive bioinformatic analysis provides new insights into Tribbles gene expression and transcript regulation in CRC.
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The Pseudokinase TRIB3 Negatively Regulates the HER2 Receptor Pathway and Is a Biomarker of Good Prognosis in Luminal Breast Cancer. Cancers (Basel) 2021; 13:cancers13215307. [PMID: 34771470 PMCID: PMC8582533 DOI: 10.3390/cancers13215307] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 10/15/2021] [Accepted: 10/19/2021] [Indexed: 02/05/2023] Open
Abstract
Simple Summary Breast cancer is the most frequent type of cancer in women. More than 70% of these tumors belong to the so-called luminal subtype which has, in general, a good prognosis. However, a fraction of patients with luminal breast cancer progress to an advanced or metastatic disease, which remains a major clinical and social problem. Therefore, it is crucial to identify novel biomarkers that help to predict the progression of the disease and to develop more efficacious therapeutic approaches to fight advanced luminal breast cancer. In this work we found that the increased expression of the protein tribbles pseudokinase 3 (TRIB3) is associated with a good prognosis and a better response to therapy in luminal breast cancer patients. We also found that this effect is at least in part due to the ability of TRIB3 to inhibit the activity of the oncogene HER2. Abstract Background: Tribbles pseudokinase 3 (TRIB3) has been proposed to both promote and restrict cancer generation and progression. However, the precise mechanisms that determine this dual role of TRIB3 in cancer remain to be understood. In this study we aimed to investigate the role of TRIB3 in luminal breast cancer, the most frequent subtype of this malignancy. Methods: We genetically manipulated TRIB3 expression in a panel of luminal breast cancer cell lines and analyzed its impact on cell proliferation, and the phosphorylation, levels, or subcellular localization of TRIB3 and other protein regulators of key signaling pathways in luminal breast cancer. We also analyzed TRIB3 protein expression in samples from luminal breast cancer patients and performed bioinformatic analyses in public datasets. Results: TRIB3 enhanced the proliferation and AKT phosphorylation in luminal A (HER2-) but decreased them in luminal B (HER2+) breast cancer cell lines. TRIB3 negatively regulated the stability of HER2 in luminal B breast cancer cell lines. TRIB3 expression was associated with increased disease-free survival and a better response to therapy in luminal breast cancer patients. Conclusions: Our findings support the exploration of TRIB3 as a potential biomarker and therapeutic target in luminal breast cancer.
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Wang N, Si C, Xia L, Wu X, Zhao S, Xu H, Ding Z, Niu Z. TRIB3 regulates FSHR expression in human granulosa cells under high levels of free fatty acids. Reprod Biol Endocrinol 2021; 19:139. [PMID: 34503515 PMCID: PMC8428109 DOI: 10.1186/s12958-021-00823-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 09/01/2021] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND Granulosa cells (GCs) in cumulus oophorus highly express follicle stimulating hormone receptor (FSHR), which is the most important mediator of both estradiol synthesis and oocyte maturation. Obese women have elevated free fatty acids (FFAs) levels in their follicular fluids and decreased FSHR expression in GCs, which is related to an altered protein kinase B/glycogen synthase kinase 3β (Akt/GSK3β) signaling pathway. Such FFA increases accompany 3-fold rises in pseudokinase 3 (TRIB3) expression and reduce the Akt phosphorylation status in both the human liver and in insulinoma cell lines. Therefore, in a high FFA environment, we determined if TRIB3 mediates regulation of FSHR via the Akt/GSK3β signaling pathway in human GCs. METHODS GCs from women undergoing in vitro fertilization were collected and designated as high and low FFAs cohorts based on their follicular fluid FFA content. GCs with low FFA levels and a human granulosa-like tumor (KGN) cell line were exposed to palmitic acid (PA), which is a dominate FFA follicular fluid constituent. The effects were assessed of this substitution on the Akt/GSK3β signaling pathway activity as well as the expressions of TRIB3 and FSHR at both the gene and protein levels by qPCR, Western blot and immunofluorescence staining analyses. Meanwhile, the individual effects of TRIB3 knockdown in KGN cells and p-AKT inhibitors were compared to determine the mechanisms of FFA-induced FSHR downregulation. RESULTS The average FSH dose consuming per oocyte (FSH dose/oocyte) was elevated and Top embryo quality ratio was decreased in women with high levels of FFAs in their follicular fluid. In these women, the GC TRIB3 and ATF4 protein expression levels were upregulated which was accompanied by FSHR downregulation. Such upregulation was confirmed based on corresponding increases in their gene expression levels. On the other hand, the levels of p-Akt decreased while p-GSK3β increased in the GCs. Moreover, TRIB3 knockdown reversed declines in FSHR expression and estradiol (E2) production in KGN cells treated with PA, which also resulted in increased p-Akt levels and declines in the p-GSK3β level. In contrast, treatment of TRIB3-knockdown cells with an inhibitor of p-Akt (Ser473) resulted in rises in the levels of both p-GSK3β as well as FSHR expression whereas E2 synthesis fell. CONCLUSIONS During exposure to a high FFA content, TRIB3 can reduce FSHR expression through stimulation of the Akt/GSK3β pathway in human GCs. This response may contribute to inducing oocyte maturation.
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Affiliation(s)
- Nan Wang
- Department of Gynecology and Obstetrics, Ruijin Hospital Affiliated with the Medical School of Shanghai Jiao Tong University, Shanghai, 200025, China
| | - Chenchen Si
- Department of Gynecology and Obstetrics, Ruijin Hospital Affiliated with the Medical School of Shanghai Jiao Tong University, Shanghai, 200025, China
| | - Lan Xia
- Department of Gynecology and Obstetrics, Ruijin Hospital Affiliated with the Medical School of Shanghai Jiao Tong University, Shanghai, 200025, China
| | - Xian Wu
- Department of Gynecology and Obstetrics, Ruijin Hospital Affiliated with the Medical School of Shanghai Jiao Tong University, Shanghai, 200025, China
| | - Sheng Zhao
- Department of Gynecology and Obstetrics, Ruijin Hospital Affiliated with the Medical School of Shanghai Jiao Tong University, Shanghai, 200025, China
| | - Huihui Xu
- Department of Gynecology and Obstetrics, Ruijin Hospital Affiliated with the Medical School of Shanghai Jiao Tong University, Shanghai, 200025, China
| | - Zhide Ding
- Department of Histology, Embryology, Genetics and Developmental Biology, Shanghai Key Laboratory for Reproductive Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
| | - Zhihong Niu
- Department of Gynecology and Obstetrics, Ruijin Hospital Affiliated with the Medical School of Shanghai Jiao Tong University, Shanghai, 200025, China.
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Kim DK, Kim YN, Kim YE, Lee SY, Shin MJ, Do EK, Choi KU, Kim SC, Kim KH, Suh DS, Song P, Kim JH. TRIB2 Stimulates Cancer Stem-Like Properties through Activating the AKT-GSK3β-β-Catenin Signaling Axis. Mol Cells 2021; 44:481-492. [PMID: 34326276 PMCID: PMC8334352 DOI: 10.14348/molcells.2021.0030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 04/11/2021] [Accepted: 05/28/2021] [Indexed: 12/13/2022] Open
Abstract
Tribbles homolog 2 (TRIB2) is implicated in tumorigenesis and drug resistance in various types of cancers. However, the role of TRIB2 in the regulation of tumorigenesis and drug resistance of cancer stem cells (CSCs) is still elusive. In the present study, we showed increased expression of TRIB2 in spheroid-forming and aldehyde dehydrogenase-positive CSC populations of A2780 epithelial ovarian cancer cells. Short hairpin RNA-mediated silencing of TRIB2 expression attenuates the spheroid-forming, migratory, tumorigenic, and drug-resistant properties of A2780 cells, whereas overexpression of TRIB2 increases the CSC-like characteristics. TRIB2 overexpression induced GSK3β inactivation by augmenting AKT-dependent phosphorylation of GSK3β at Ser9, followed by increasing β-catenin level via reducing the GSK3β-mediated phosphorylation of β-catenin. Treatment of TRIB2-ovexpressed A2780 cells with the phosphoinositide-3-kinase inhibitor LY294002 abrogated TRIB2-stimulated proliferation, migration, drug resistance of A2780 cells. These results suggest a critical role for TRIB2 in the regulation of CSC-like properties by increasing the stability of β-catenin protein via the AKT-GSK3β-dependent pathways.
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Affiliation(s)
- Dae Kyoung Kim
- Department of Physiology, School of Medicine, Pusan National University, Yangsan 50612, Korea
| | - Yu Na Kim
- Department of Physiology, School of Medicine, Pusan National University, Yangsan 50612, Korea
| | - Ye Eun Kim
- Department of Physiology, School of Medicine, Pusan National University, Yangsan 50612, Korea
| | - Seo Yul Lee
- Department of Physiology, School of Medicine, Pusan National University, Yangsan 50612, Korea
| | - Min Joo Shin
- Department of Physiology, School of Medicine, Pusan National University, Yangsan 50612, Korea
| | - Eun Kyoung Do
- Department of Physiology, School of Medicine, Pusan National University, Yangsan 50612, Korea
| | - Kyung-Un Choi
- Department of Pathology, School of Medicine, Pusan National University, Yangsan 50612, Korea
| | - Seung-Chul Kim
- Department of Obstetrics and Gynecology, School of Medicine, Pusan National University, Yangsan 50612, Korea
| | - Ki-Hyung Kim
- Department of Obstetrics and Gynecology, School of Medicine, Pusan National University, Yangsan 50612, Korea
| | - Dong-Soo Suh
- Department of Obstetrics and Gynecology, School of Medicine, Pusan National University, Yangsan 50612, Korea
| | - Parkyong Song
- Department of Convergence Medicine, School of Medicine, Pusan National University, Yangsan 50612, Korea
| | - Jae Ho Kim
- Department of Physiology, School of Medicine, Pusan National University, Yangsan 50612, Korea
- Research Institute of Convergence Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan 50612, Korea
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13
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Bao XY, Sun M, Peng TT, Han DM. TRIB3 promotes proliferation, migration, and invasion of retinoblastoma cells by activating the AKT/mTOR signaling pathway. Cancer Biomark 2021; 31:307-315. [PMID: 33896816 DOI: 10.3233/cbm-200050] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Tribbles pseudokinase 3 (TRIB3) is a member of the tribbles-related family, which has been determined in various cancers, including renal cell carcinoma, acute promyelocytic leukemia, colorectal cancer, endometrial cancer, and glioma. However, its role in retinoblastoma (RB) has not yet been explored. METHODS The expression level of TRIB3 was detected in RB tissues and cell lines using qRT-PCR. The effects of TRIB3 on cell proliferation and invasion capacities were analyzed with MTT, crystal violet, and transwell assays. Western blot and rescue assays were conducted to explore the underlying mechanism. RESULTS This study found that TRIB3 was upregulated in human RB tissues compared to adjacent normal tissues both at the mRNA and protein levels. Overexpression of TRIB3 significantly promoted cell proliferation and invasion of RB cells, while TRIB3 knockdown inhibited these processes. Moreover, the mechanism deciphering experiments showed that TRIB3 overexpression can increase AKT and mTOR phosphorylation. Conversely, TRIB3 knockdown decreased the phosphorylation of AKT and mTOR. Additionally, MK2206, a potent AKT inhibitor, blocked the promotive effects of TRIB3 in RB cells. CONCLUSION This study demonstrated that TRIB3 acts as an oncogene and plays a crucial role in the proliferation and invasion of RB cells via regulating the AKT/mTOR signaling pathway. Therefore, TRIB3 may serve as a potential target in the diagnosis and/or treatment of RB.
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Affiliation(s)
- Xian-Yi Bao
- Department of Cataract, Aier Eye Hospital of Wuhan University, Wuhan, Hubei, China
| | - Ming Sun
- Department of Cataract, Aier Eye Hospital of Wuhan University, Wuhan, Hubei, China
| | - Ting-Ting Peng
- Department of Cataract, Aier Eye Hospital of Wuhan University, Wuhan, Hubei, China
| | - Dong-Mei Han
- Department of Fundus Disease, Huainan Chenguang Eye Hospital, Huainan, Anhui, China
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14
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Wang XJ, Li FF, Zhang YJ, Jiang M, Ren WH. TRIB3 promotes hepatocellular carcinoma growth and predicts poor prognosis. Cancer Biomark 2021; 29:307-315. [PMID: 32716348 DOI: 10.3233/cbm-201577] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Tribbles pseudokinase 3 (TRIB3) is a member of the tribbles-related family, which is involved a lot of cellular processes and multiple cancers, such as breast cancer, colorectal cancer, renal cell carcinomas, and lung cancer. However, the expression pattern and biological function of TRIB3 in hepatocellular carcinoma (HCC) has not yet been completely elucidated. METHODS The expression of TRIB3 and clinicopathological characteristics were evaluated by HCC tissue microarray and qPCR analysis. Lentivirus packaging and transfection were employed to establish cell lines with TRIB3 overexpression or knockdown. The biological functions of TRIB3 in the growth of HCC were determined using MTT and crystal violet assays. Tumor growth was monitored in a xenograft model in vivo. RESULTS The expression of TRIB3 was upregulated in HCC tissue samples compared to paired normal tissues in 45 patients examined by qPCR assay. TRIB3 expression was significantly correlated with HCC tumor size and prognosis in postoperative patients by analysis of the TRIB3 expression data and HCC clinical features. Forced expression of TRIB3 significantly promoted HCC growth in vitro. In contrast, downregulation of TRIB3 inhibited cell growth in vitro. Moreover, knockdown of TRIB3 suppressed tumorigenesis of HCC cells in vivo. CONCLUSION TRIB3 promotes growth abilities of HCC cells both in vitro and in vivo and predicts poor prognosis of HCC patients, which serves as a prognostic marker and might provide a potential therapeutic candidate for patients with HCC.
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Affiliation(s)
- Xiao-Jun Wang
- Department of Geriatrics, Department of Geriatric Gastroenterology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China.,Department of Geriatrics, Department of Geriatric Gastroenterology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Fei-Fei Li
- Department of Infectious Diseases, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China.,Department of Geriatrics, Department of Geriatric Gastroenterology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Yi-Jing Zhang
- Department of Geriatrics, Department of Geriatric Gastroenterology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Man Jiang
- Department of Geriatrics, Department of Geriatric Gastroenterology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Wan-Hua Ren
- Department of Infectious Diseases, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
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15
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Liu H, Bei Q, Luo X. MLN4924 inhibits cell proliferation by targeting the activated neddylation pathway in endometrial carcinoma. J Int Med Res 2021; 49:3000605211018592. [PMID: 34082605 PMCID: PMC8182194 DOI: 10.1177/03000605211018592] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Objective To explore the neddylation pathway, found to be highly activated in various
cancers, as a potential therapeutic target in endometrial carcinoma, one of
the three most frequent malignant tumours in the female reproductive
system. Methods Data from The Cancer Genome Atlas were analysed using online servers.
Expression levels of key neddylation genes were validated by
reverse-transcription polymerase chain reaction and western blots of tumour
and adjacent tissues. Underlying mechanisms and the effects on cell
activities of the neddylation pathway-specific inhibitor, MLN4924, were
investigated in endometrial cancer cell lines. Results Key neddylation enzymes, ubiquitin conjugating enzyme E2 M
(UBC12), ubiquitin conjugating enzyme E2 F
(UBE2F), ring-box 1 (RBX1) and ring
finger protein 7 (RBX2), were significantly overexpressed
in endometrial carcinoma tissues versus normal tissues, but only UBE2F and
RBX2 positively correlated with patient survival. MLN4924 significantly
suppressed proliferation and colony formation in EC cells by inducing DNA
re-replication, cell cycle arrest and apoptosis. Mechanism study revealed
that MLN4924 induced the accumulation of cullin-RING ligase substrates
in vitro. Conclusions The neddylation pathway was identified to play an important role in
endometrial cancer. The neddylation specific inhibitor, MLN4924, may be a
potential therapeutic drug for endometrial carcinoma.
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Affiliation(s)
- Huanrong Liu
- Department of Gynaecology, Shanghai First Maternity and Infant Hospital, Tongji University, Shanghai, China
| | - Qiaoli Bei
- Department of Gynaecology, Shanghai First Maternity and Infant Hospital, Tongji University, Shanghai, China
| | - Xiaoqian Luo
- Department of Gynaecology, Shanghai First Maternity and Infant Hospital, Tongji University, Shanghai, China
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16
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Control of Cell Growth and Proliferation by the Tribbles Pseudokinase: Lessons from Drosophila. Cancers (Basel) 2021; 13:cancers13040883. [PMID: 33672471 PMCID: PMC7923445 DOI: 10.3390/cancers13040883] [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: 01/18/2021] [Revised: 02/09/2021] [Accepted: 02/14/2021] [Indexed: 12/13/2022] Open
Abstract
Simple Summary Tribbles pseudokinases represent a sub-branch of the CAMK (Ca2+/calmodulin-dependent protein kinase) subfamily and are associated with disease-associated signaling pathways associated with various cancers, including melanoma, lung, liver, and acute leukemia. The ability of this class of molecules to regulate cell proliferation was first recognized in the model organism Drosophila and the fruit fly genetic model and continues to provide insight into the molecular mechanism by which this family of adapter molecules regulates both normal development and disease associated with corruption of their proper regulation and function. Abstract The Tribbles (Trib) family of pseudokinase proteins regulate cell growth, proliferation, and differentiation during normal development and in response to environmental stress. Mutations in human Trib isoforms (Trib1, 2, and 3) have been associated with metabolic disease and linked to leukemia and the formation of solid tumors, including melanomas, hepatomas, and lung cancers. Drosophila Tribbles (Trbl) was the first identified member of this sub-family of pseudokinases and shares a conserved structure and similar functions to bind and direct the degradation of key mediators of cell growth and proliferation. Common Trib targets include Akt kinase (also known as protein kinase B), C/EBP (CAAT/enhancer binding protein) transcription factors, and Cdc25 phosphatases, leading to the notion that Trib family members stand athwart multiple pathways modulating their growth-promoting activities. Recent work using the Drosophila model has provided important insights into novel facets of conserved Tribbles functions in stem cell quiescence, tissue regeneration, metabolism connected to insulin signaling, and tumor formation linked to the Hippo signaling pathway. Here we highlight some of these recent studies and discuss their implications for understanding the complex roles Tribs play in cancers and disease pathologies.
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17
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Wang S, Wang C, Li X, Hu Y, Gou R, Guo Q, Nie X, Liu J, Zhu L, Lin B. Down-regulation of TRIB3 inhibits the progression of ovarian cancer via MEK/ERK signaling pathway. Cancer Cell Int 2020; 20:418. [PMID: 32874132 PMCID: PMC7456033 DOI: 10.1186/s12935-020-01509-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 07/19/2020] [Accepted: 08/19/2020] [Indexed: 12/12/2022] Open
Abstract
Background Tribbles pseudokinase 3 (TRIB3) protein is a pseudokinase which plays an important role in cellular stress, metabolism, and tumor progression. However, the expression and function of TRIB3 in ovarian cancer is unknown. Methods TRIB3 expression was detected by immunohistochemistry in the ovarian tissue samples. Following down-regulation of TRIB3 by siRNA, multiple aspects of ovarian cancer cells were detected by the MTT assay, flow cytometry, scratch test and Transwell. Additionally, changes in related molecules and the MEK/ERK pathway were detected by western blotting. Finally, many bioinformatic methods, websites and databases, such as gene set enrichment analysis (GSEA), DVAID, Genemania, TISIDB and cBioPortal were used to study the TRIB3. Results The expression level of TRIB3 was higher in ovarian epithelial malignant tumors as compared to other groups. Patients with a high expression level of TRIB3 had significantly shorter survival times,which was consistent with the results of analysis of the KM-plot database. Down-regulation of TRIB3 expression significantly inhibited the proliferation, invasion, and migration capabilities of ovarian cancer cells, and induced apoptosis and cell cycle arrest. Following TRIB3 siRNA transfection, expression levels of relative proteins were found to be decreased. Additionally, analysis in DAVID website and GSEA revealed that TRIB3 expression was associated with multiple biological processes. Protein phosphorylation levels of MEK and ERK also decreased following TRIB3-siRNA transfection. The Genemania website was used to analyze the proteins that interact with TRIB3. Analysis of TRIB3 in the TISIDB database and cBioPortal website showed that ovarian cancer patients with high levels of mutation in TRIB3 had poor prognosis, and that the expression of TRIB3 was related to immunomodulation. Conclusions The TRIB3 was highly expressed and promoting the malignant behavior of ovarian cancer cells by activating the MEK-ERK signaling pathway. It was also found to be associated with genetic variations and immune modulators.
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Affiliation(s)
- Shuang Wang
- Department of Obstetrics and Gynaecology, Shengjing Hospital Affiliated to China Medical University, No. 36, Sanhao Street, Heping District, Liaoning, 110004 China.,Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Shenyang, Liaoning China
| | - Caixia Wang
- Department of Obstetrics and Gynaecology, Shengjing Hospital Affiliated to China Medical University, No. 36, Sanhao Street, Heping District, Liaoning, 110004 China.,Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Shenyang, Liaoning China
| | - Xiao Li
- Department of Obstetrics and Gynaecology, Shengjing Hospital Affiliated to China Medical University, No. 36, Sanhao Street, Heping District, Liaoning, 110004 China.,Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Shenyang, Liaoning China
| | - Yuexin Hu
- Department of Obstetrics and Gynaecology, Shengjing Hospital Affiliated to China Medical University, No. 36, Sanhao Street, Heping District, Liaoning, 110004 China.,Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Shenyang, Liaoning China
| | - Rui Gou
- Department of Obstetrics and Gynaecology, Shengjing Hospital Affiliated to China Medical University, No. 36, Sanhao Street, Heping District, Liaoning, 110004 China.,Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Shenyang, Liaoning China
| | - Qian Guo
- Department of Obstetrics and Gynaecology, Shengjing Hospital Affiliated to China Medical University, No. 36, Sanhao Street, Heping District, Liaoning, 110004 China.,Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Shenyang, Liaoning China
| | - Xin Nie
- Department of Obstetrics and Gynaecology, Shengjing Hospital Affiliated to China Medical University, No. 36, Sanhao Street, Heping District, Liaoning, 110004 China.,Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Shenyang, Liaoning China
| | - Juanjuan Liu
- Department of Obstetrics and Gynaecology, Shengjing Hospital Affiliated to China Medical University, No. 36, Sanhao Street, Heping District, Liaoning, 110004 China.,Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Shenyang, Liaoning China
| | - Liancheng Zhu
- Department of Obstetrics and Gynaecology, Shengjing Hospital Affiliated to China Medical University, No. 36, Sanhao Street, Heping District, Liaoning, 110004 China.,Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Shenyang, Liaoning China
| | - Bei Lin
- Department of Obstetrics and Gynaecology, Shengjing Hospital Affiliated to China Medical University, No. 36, Sanhao Street, Heping District, Liaoning, 110004 China.,Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Shenyang, Liaoning China
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18
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TRIB3 destabilizes tumor suppressor PPARα expression through ubiquitin-mediated proteasome degradation in acute myeloid leukemia. Life Sci 2020; 257:118021. [PMID: 32621919 DOI: 10.1016/j.lfs.2020.118021] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 06/17/2020] [Accepted: 06/24/2020] [Indexed: 12/23/2022]
Abstract
AIMS Tribbles homolog 3 (TRIB3) is emerging as a multifunctional oncoprotein associated with various cellular events in different tumors. However, the regulatory mechanism of TRIB3 in acute myeloid leukemia (AML) remains unknown. This study aims to investigate the molecular mechanisms and uncover the functions of TRIB3 in AML. METHODS Western blotting and quantitative real-time PCR were used to analyze the expression levels of TRIB3, peroxisome proliferator-activated receptor α (PPARα), apoptosis markers and autophagy markers in AML cells. Flow cytometry was used to assess cell apoptosis. The interaction of TRIB3 and PPARα was evaluated by immunofluorescence, coimmunoprecipitation, and in vivo ubiquitination assays. KEY FINDINGS We demonstrated that downregulating TRIB3 in leukemic cells effectively induced apoptosis and autophagy by regulating the degradation of PPARα. Mechanistically, TRIB3 interacted with PPARα and contributed to its destabilization by promoting its ubiquitination. When PPARα was activated by its specific agonist clofibrate, the apoptosis and autophagy of AML cells were significantly enhanced. These results were confirmed by rescue experiments. Blocking PPARα expression using the PPARα inhibitor GW6471 reversed the functional influence of TRIB3 on AML cells. SIGNIFICANCE The aim of this study is to provide evidence of the degradation of PPARα by TRIB3 via ubiquitin-dependent proteasomal degradation. This process meditates the progression of AML and prolongs the survival of leukemic cells. As a result, these data indicate that TRIB3 is a novel and promising therapeutic target for AML treatment.
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19
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Pibiri M, Sulas P, Camboni T, Leoni VP, Simbula G. α-Lipoic acid induces Endoplasmic Reticulum stress-mediated apoptosis in hepatoma cells. Sci Rep 2020; 10:7139. [PMID: 32345994 PMCID: PMC7189383 DOI: 10.1038/s41598-020-64004-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 04/06/2020] [Indexed: 12/15/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is the most common liver cancer and a major cause of adult death. The current treatments for HCC suffer from drug resistance and poor prognosis; therefore, novel therapeutic agents are urgently needed. Phytochemicals have been proposed to treat a range of cancers. Among them, α-lipoic acid (α-LA), a naturally synthesized antioxidant found in various dietary animal and plant sources, prevents oxidant-mediated cell death in normal cells while inducing apoptosis in several cancer cell lines. Previously, we demonstrated that the treatment of hepatoma cells with α-LA induced apoptosis, which was preceded by the generation of reactive oxygen species (ROS) and activation of the p53 protein, a known inducer of mitochondria-mediated apoptosis. Several studies have shown that ROS-induced apoptosis is associated with endoplasmic reticulum (ER) stress and Unfolded Protein Response (UPR) activation. Herein, we investigated if α-LA-induced apoptosis in hepatoma cell lines was ER stress- and UPR-mediated by gene expression profiling analyses. UPR and ER stress pathways were the most up-regulated after treatment with α-LA. This finding, which has been confirmed by expression analyses of ER- and UPR-associated proteins, provides a better understanding of the molecular mechanisms behind the anti-tumoral action of α-LA on hepatoma cells.
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Affiliation(s)
- Monica Pibiri
- Department of Biomedical Sciences, Unit of Oncology and Molecular Pathology, University of Cagliari, Cagliari, Italy
| | - Pia Sulas
- Department of Biomedical Sciences, Unit of Oncology and Molecular Pathology, University of Cagliari, Cagliari, Italy
| | - Tania Camboni
- National Research Council, Institute of Biomedical Technologies, Segrate, Milano, Italy
| | - Vera Piera Leoni
- Department of Biomedical Sciences, Unit of Oncology and Molecular Pathology, University of Cagliari, Cagliari, Italy
| | - Gabriella Simbula
- Department of Biomedical Sciences, Unit of Oncology and Molecular Pathology, University of Cagliari, Cagliari, Italy.
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20
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Zhu Y, Cui J, Liu J, Hua W, Wei W, Sun G. Sp2 promotes invasion and metastasis of hepatocellular carcinoma by targeting TRIB3 protein. Cancer Med 2020; 9:3592-3603. [PMID: 32160655 PMCID: PMC7221442 DOI: 10.1002/cam4.2977] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Revised: 01/20/2020] [Accepted: 02/14/2020] [Indexed: 12/27/2022] Open
Abstract
Objective To explore the biological function and molecular mechanism of Sp2 in hepatocellular carcinoma (HCC). Methods Tissue microarray immunohistochemistry and western blot were used to study the expression of Sp2 in hepatocellular tissue and adjacent non‐neoplastic tissues (ANT). In HCC cell lines, the role of Sp2 was determined by in vitro experiments such as CCK8, clone formation test, Transwell assay, wound‐healing assay, and flow cytometry apoptotic analysis, and its possible mechanism was analyzed. Results Compared with ANT, Sp2 expression in HCC tissues was significantly up‐regulated, which was strongly associated with stage of tumor and poor prognosis of patients. TCGA database were further confirmed these results. Besides, functional studies had shown that Sp2 knockdown not only leads to a decrease in cell proliferation and an increase in cell apoptosis but also inhibits the cells' abilities of migration and invasion. Sp2 silencing could inhibit the expression of TRIB3 protein and down‐regulate the endoplasmic reticulum stress (ERS) level of HCC. Conclusion Sp2 may play a part in promoting cancer by regulating TRIB3 protein, which may be a factor of prognostic and a potential new therapeutic target for HCC.
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Affiliation(s)
- Yue Zhu
- Department of Oncology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Jie Cui
- Department of Oncology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Jiatao Liu
- Department of Pharmacy, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Wei Hua
- Department of Pharmacy, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Wei Wei
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, China
| | - Guoping Sun
- Department of Oncology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
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21
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Zhao D, Ren C, Yao Y, Wang Q, Li F, Li Y, Jiang A, Wang G. Identifying prognostic biomarkers in endometrial carcinoma based on ceRNA network. J Cell Biochem 2019; 121:2437-2446. [PMID: 31692050 DOI: 10.1002/jcb.29466] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Accepted: 10/08/2019] [Indexed: 12/18/2022]
Abstract
PURPOSE Endometrial carcinoma (EC), a common gynecological malignancy with high incidence, affects the mental and physical health of women. Mounting evidence shows that long noncoding RNAs (lncRNAs), messenger RNAs (mRNAs), and microRNAs (miRNAs) have instrumental roles in various biological processes associated with the pathogenesis of EC. In this research, we intend to further study the mechanism of EC and the potential predictive markers of EC. METHODS First, we obtained original data of EC RNA transcripts from The Cancer Genome Atlas database and performed differential analysis. Subsequently, according to the miRcode online software, relationship pairs of lncRNA-miRNA were constructed, and miRNA-mRNA pairs were established based on miRDB, TargetScan, and miRTarBase. Then, we constructed the competing endogenous RNA (ceRNA) network based on lncRNA-miRNA and miRNA-mRNA pairs. To further explain the function of the ceRNA network and explore the potential prognostic markers, functional enrichment analysis, and survival analysis were carried out. RESULTS The research showed that there were 744 differential expression lncRNAs (DElncRNAs), 164 differential expression miRNAs (DEmiRNAs), and 2447 differential expression mRNAs (DEmRNAs) between EC tissues and normal tissues. Subsequently, we built 103 DEmiRNA-DEmRNA interaction pairs and 369 DElncRNA-DEmiRNA pairs. Then, we established the ceRNA network of EC, including 62 DElncRNAs, 26 DEmiRNAs, and 70 DEmRNAs. Moreover, 10 of 62 lncRNAs, 19 of 70 mRNAs, and 4 of 26 miRNAs that closely related to the survival of EC with P < .05 were obtained. Notably, based on this network, it was found that LINC00261-hsa-mir-31 pair and LINC00261-hsa-mir-211 target pairs could be used as the potential prognostic markers of EC. CONCLUSION This research recommended an available basis for the molecular mechanism of EC and prognosis prediction, which could help guide the subsequent treatments and predict the prognosis for patients with EC.
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Affiliation(s)
- Dongli Zhao
- Clinical Medical Colleges, Weifang Medical University, Weifang, Shandong, China
| | - Chune Ren
- Department of Reproductive Medicine, Affiliated Hospital of Weifang Medical University, Weifang, Shandong, China
| | - Yan Yao
- Clinical Medical Colleges, Weifang Medical University, Weifang, Shandong, China
| | - Qinjian Wang
- Clinical Medical Colleges, Weifang Medical University, Weifang, Shandong, China
| | - Fei Li
- Clinical Medical Colleges, Weifang Medical University, Weifang, Shandong, China
| | - Yang Li
- Clinical Medical Colleges, Weifang Medical University, Weifang, Shandong, China
| | - Aifang Jiang
- Department of Reproductive Medicine, Affiliated Hospital of Weifang Medical University, Weifang, Shandong, China
| | - Guili Wang
- Department of Reproductive Medicine, Affiliated Hospital of Weifang Medical University, Weifang, Shandong, China
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22
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Richmond L, Keeshan K. Pseudokinases: a tribble-edged sword. FEBS J 2019; 287:4170-4182. [PMID: 31621188 DOI: 10.1111/febs.15096] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 08/29/2019] [Accepted: 10/14/2019] [Indexed: 12/20/2022]
Abstract
Advances in the understanding of the Tribbles family of pseudokinases (TRIB1, TRIB2 and TRIB3) reveal these proteins as potentially valuable biomarkers of disease diagnosis, prognosis, prediction and clinical strategy. In their role as signalling mediators and scaffolding proteins, TRIBs lead to changes in protein stability and activity, which impact on diverse cellular processes such as proliferation, differentiation, cell cycle and cell death. We review the role of TRIB proteins as promising therapeutic targets, with an emphasis on their role in cancer, and as biomarkers, with potential application across diverse pathological processes.
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Affiliation(s)
- Laura Richmond
- Paul O'Gorman Leukaemia Research Centre, Institute of Cancer Sciences, University of Glasgow, UK
| | - Karen Keeshan
- Paul O'Gorman Leukaemia Research Centre, Institute of Cancer Sciences, University of Glasgow, UK
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23
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Zhang X, Zhong N, Li X, Chen MB. TRIB3 promotes lung cancer progression by activating β-catenin signaling. Eur J Pharmacol 2019; 863:172697. [PMID: 31562867 DOI: 10.1016/j.ejphar.2019.172697] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 09/23/2019] [Accepted: 09/24/2019] [Indexed: 12/26/2022]
Abstract
TRIB3 roles in tumor progression have been revealed with similar or opposite results. Here, we found that TRIB3 expression was highly expressed in lung cancer tissues and correlated with tumor grades and metastasis. Functional experiments showed that TRIB3 knockdown (KD) inhibited lung cancer cell migration, invasion, EMT (epithelial-mesenchymal transition) process and stemness. Mechanistic studies demonstrated that TRIB3 physically interacted with β-catenin and increased the recruitment of β-catenin to the promoter region of genes regulated by Wnt. Re-activation of β-catenin attenuated the inhibition of TRIB3 KD on lung cancer progression. These results suggest that TRIB3 interacts with β-catenin and thus activates β-catenin signaling, which is responsible for lung cancer progression, and blocking TRIB3 activity might be developed to treat lung cancer.
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Affiliation(s)
- Xiaochuan Zhang
- Department of Cardio-Thoracic Surgery, The First People's Hospital of Kunshan, 91 Qianjin West Road, Kunshan, Jiangsu, 215300, PR China
| | - Ning Zhong
- Department of Cardio-Thoracic Surgery, The First People's Hospital of Kunshan, 91 Qianjin West Road, Kunshan, Jiangsu, 215300, PR China
| | - Xing Li
- Department of Cardio-Thoracic Surgery, The First People's Hospital of Kunshan, 91 Qianjin West Road, Kunshan, Jiangsu, 215300, PR China
| | - Min-Bin Chen
- Department of Radiotherapy & Oncology, The Affiliated Kunshan Hospital of Jiangsu University, Kunsan, 215300, Jiangsu Province, China.
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