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Shi Q, Xue C, Zeng Y, Yuan X, Chu Q, Jiang S, Wang J, Zhang Y, Zhu D, Li L. Notch signaling pathway in cancer: from mechanistic insights to targeted therapies. Signal Transduct Target Ther 2024; 9:128. [PMID: 38797752 PMCID: PMC11128457 DOI: 10.1038/s41392-024-01828-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: 01/18/2024] [Revised: 03/31/2024] [Accepted: 04/15/2024] [Indexed: 05/29/2024] Open
Abstract
Notch signaling, renowned for its role in regulating cell fate, organ development, and tissue homeostasis across metazoans, is highly conserved throughout evolution. The Notch receptor and its ligands are transmembrane proteins containing epidermal growth factor-like repeat sequences, typically necessitating receptor-ligand interaction to initiate classical Notch signaling transduction. Accumulating evidence indicates that the Notch signaling pathway serves as both an oncogenic factor and a tumor suppressor in various cancer types. Dysregulation of this pathway promotes epithelial-mesenchymal transition and angiogenesis in malignancies, closely linked to cancer proliferation, invasion, and metastasis. Furthermore, the Notch signaling pathway contributes to maintaining stem-like properties in cancer cells, thereby enhancing cancer invasiveness. The regulatory role of the Notch signaling pathway in cancer metabolic reprogramming and the tumor microenvironment suggests its pivotal involvement in balancing oncogenic and tumor suppressive effects. Moreover, the Notch signaling pathway is implicated in conferring chemoresistance to tumor cells. Therefore, a comprehensive understanding of these biological processes is crucial for developing innovative therapeutic strategies targeting Notch signaling. This review focuses on the research progress of the Notch signaling pathway in cancers, providing in-depth insights into the potential mechanisms of Notch signaling regulation in the occurrence and progression of cancer. Additionally, the review summarizes pharmaceutical clinical trials targeting Notch signaling for cancer therapy, aiming to offer new insights into therapeutic strategies for human malignancies.
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Affiliation(s)
- Qingmiao Shi
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Chen Xue
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Yifan Zeng
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Xin Yuan
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Qingfei Chu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Shuwen Jiang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Jinzhi Wang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Yaqi Zhang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Danhua Zhu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China.
| | - Lanjuan Li
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China.
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2
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Skelin J, Luk HY, Butorac D, Boon SS, Tomaić V. The effects of HPV oncoproteins on host communication networks: Therapeutic connotations. J Med Virol 2023; 95:e29315. [PMID: 38115222 DOI: 10.1002/jmv.29315] [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: 10/05/2023] [Revised: 11/13/2023] [Accepted: 11/29/2023] [Indexed: 12/21/2023]
Abstract
Human papillomavirus (HPV) infections are a leading cause of viral-induced malignancies worldwide, with a prominent association with cervical and head and neck cancers. The pivotal role of HPV oncoproteins, E5, E6, and E7, in manipulating cellular events, which contribute to viral pathogenesis in various ways, has been extensively documented. This article reviews the influence of HPV oncoproteins on cellular signaling pathways within the host cell, shedding light on the underlying molecular mechanisms. A comprehensive understanding of these molecular alterations is essential for the development of targeted therapies and strategies to combat HPV-induced premalignancies and prevent their progress to cancer. Furthermore, this review underscores the intricate interplay between HPV oncoproteins and some of the most important cellular signaling pathways: Notch, Wnt/β-catenin, MAPK, JAK/STAT, and PI3K AKT/mTOR. The treatment efficacies of the currently available inhibitors on these pathways in an HPV-positive context are also discussed. This review also highlights the importance of continued research to advance our knowledge and enhance therapeutic interventions for HPV-associated diseases.
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Affiliation(s)
- Josipa Skelin
- Division of Molecular Medicine, Ruđer Bošković Institute, Zagreb, Croatia
| | - Ho Yin Luk
- Department of Microbiology, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, New Territories, Hong Kong SAR
| | - Dražan Butorac
- Department of Gynecology and Obstetrics, Sestre Milosrdnice University Hospital Center, Zagreb, Croatia
| | - Siaw Shi Boon
- Department of Microbiology, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, New Territories, Hong Kong SAR
| | - Vjekoslav Tomaić
- Division of Molecular Medicine, Ruđer Bošković Institute, Zagreb, Croatia
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Paniri A, Hosseini MM, Amjadi-Moheb F, Tabaripour R, Soleimani E, Langroudi MP, Zafari P, Akhavan-Niaki H. The epigenetics orchestra of Notch signaling: a symphony for cancer therapy. Epigenomics 2023; 15:1337-1358. [PMID: 38112013 DOI: 10.2217/epi-2023-0270] [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] [Indexed: 12/20/2023] Open
Abstract
The aberrant regulation of the Notch signaling pathway, which is a fundamental developmental pathway, has been implicated in a wide range of human cancers. The Notch pathway can be activated by both canonical and noncanonical Notch ligands, and its role can switch between acting as an oncogene or a tumor suppressor depending on the context. Epigenetic modifications have the potential to modulate Notch and its ligands, thereby influencing Notch signal transduction. Consequently, the utilization of epigenetic regulatory mechanisms may present novel therapeutic opportunities for both single and combined therapeutics targeted at the Notch signaling pathway. This review offers insights into the mechanisms governing the regulation of Notch signaling and explores their therapeutic potential.
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Affiliation(s)
- Alireza Paniri
- Department of Genetics, Faculty of Medicine, Babol University of Medical Sciences, Babol, 4717647745,Iran
- Zoonoses Research Center, Pasteur Institute of Iran, 4619332976, Amol, Iran
| | | | - Fatemeh Amjadi-Moheb
- Department of Genetics, Faculty of Medicine, Babol University of Medical Sciences, Babol, 4717647745,Iran
| | - Reza Tabaripour
- Department of Cellular and Molecular Biology, Babol Branch, Islamic Azad University, Babol, 4747137381, Iran
| | - Elnaz Soleimani
- Department of Genetics, Faculty of Medicine, Babol University of Medical Sciences, Babol, 4717647745,Iran
| | | | - Parisa Zafari
- Ramsar Campus, Mazandaran University of Medical Sciences, Ramsar, 4691786953, Iran
| | - Haleh Akhavan-Niaki
- Department of Genetics, Faculty of Medicine, Babol University of Medical Sciences, Babol, 4717647745,Iran
- Zoonoses Research Center, Pasteur Institute of Iran, 4619332976, Amol, Iran
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Skelin J, Tomaić V. Comparative Analysis of Alpha and Beta HPV E6 Oncoproteins: Insights into Functional Distinctions and Divergent Mechanisms of Pathogenesis. Viruses 2023; 15:2253. [PMID: 38005929 PMCID: PMC10674601 DOI: 10.3390/v15112253] [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: 10/27/2023] [Revised: 11/09/2023] [Accepted: 11/10/2023] [Indexed: 11/26/2023] Open
Abstract
Human papillomaviruses (HPVs) represent a diverse group of DNA viruses that infect epithelial cells of mucosal and cutaneous tissues, leading to a wide spectrum of clinical outcomes. Among various HPVs, alpha (α) and beta (β) types have garnered significant attention due to their associations with human health. α-HPVs are primarily linked to infections of the mucosa, with high-risk subtypes, such as HPV16 and HPV18, being the major etiological agents of cervical and oropharyngeal cancers. In contrast, β-HPVs are predominantly associated with cutaneous infections and are commonly found on healthy skin. However, certain β-types, notably HPV5 and HPV8, have been implicated in the development of non-melanoma skin cancers in immunocompromised individuals, highlighting their potential role in pathogenicity. In this review, we comprehensively analyze the similarities and differences between α- and β-HPV E6 oncoproteins, one of the major drivers of viral replication and cellular transformation, and how these impact viral fitness and the capacity to induce malignancy. In particular, we compare the mechanisms these oncoproteins use to modulate common cellular processes-apoptosis, DNA damage repair, cell differentiation, and the immune response-further shedding light on their shared and distinct features, which enable them to replicate at divergent locations of the human body and cause different types of cancer.
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Affiliation(s)
| | - Vjekoslav Tomaić
- Division of Molecular Medicine, Ruđer Bošković Institute, Bijenička 54, 10000 Zagreb, Croatia;
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Sen P, Ghosh SS. The Intricate Notch Signaling Dynamics in Therapeutic Realms of Cancer. ACS Pharmacol Transl Sci 2023; 6:651-670. [PMID: 37200816 PMCID: PMC10186364 DOI: 10.1021/acsptsci.2c00239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Indexed: 05/20/2023]
Abstract
The Notch pathway is remarkably simple without the interventions of secondary messengers. It possesses a unique receptor-ligand interaction that imparts signaling upon cleavage of the receptor followed by the nuclear localization of its cleaved intracellular domain. It is found that the transcriptional regulator of the Notch pathway lies at the intersection of multiple signaling pathways that enhance the aggressiveness of cancer. The preclinical and clinical evidence supports the pro-oncogenic function of Notch signaling in various tumor subtypes. Owing to its oncogenic role, the Notch signaling pathway assists in enhanced tumorigenesis by facilitating angiogenesis, drug resistance, epithelial to mesenchymal transition, etc., which is also attributed to the poor outcome in patients. Therefore, it is extremely vital to discover a suitable inhibitor to downregulate the signal-transducing ability of Notch. The Notch inhibitory agents, such as receptor decoys, protease (ADAM and γ-secretase) inhibitors, and monoclonal/bispecific antibodies, are being investigated as candidate therapeutic agents. Studies conducted by our group exemplify the promising results in ablating tumorigenic aggressiveness by inhibiting the constituents of the Notch pathway. This review deals with the detailed mechanism of the Notch pathways and their implications in various malignancies. It also bestows us with the recent therapeutic advances concerning Notch signaling in the context of monotherapy and combination therapy.
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Affiliation(s)
- Plaboni Sen
- Department
of Biosciences and Bioengineering, Indian
Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Siddhartha Sankar Ghosh
- Department
of Biosciences and Bioengineering, Indian
Institute of Technology Guwahati, Guwahati 781039, Assam, India
- Centre
for Nanotechnology, Indian Institute of
Technology Guwahati, Guwahati 781039, Assam, India
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Yin T, Yin Y, Qu L. Exploration of shared gene signature with development of pre-eclampsia and cervical cancer. Front Genet 2022; 13:972346. [PMID: 36061190 PMCID: PMC9432463 DOI: 10.3389/fgene.2022.972346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Accepted: 07/28/2022] [Indexed: 12/05/2022] Open
Abstract
Background: The relationship between pre-eclampsia (PE) and cervical cancer (CC) has drawn more attention recently, while little is known about the shared pathogenesis of CC and PE. In the present research, we aimed to generate the shared gene network as well as the prognostic model to reveal the development of CC and PE. Methods: The transcription data of CC and PE patients were obtained and enrolled into weighted gene co-expression network (WGCNA) analysis. Disease-specific modules in CC and PE were determined to discover the shared genes. The expression patterns of genes at protein level were examined by HPA database. Further, LASSO penalty regression and Cox analysis were applied to create a prognostic signature based on the shared genes, with survival curves and ROC plots employed to confirm the predictive capacity. To uncover the function roles and pathways involved in signature, gene set enrichment analysis (GSEA) was conducted. Finally, the immune infiltration status in CC was depicted using CIBERSORT algorithms. Results: WGCNA determined three hub modules between CC and PE. A total of 117 shared genes were obtained for CC and PE and mainly enriched in cell proliferation, regulation of cell development and neuron differentiation. Then, we created a robust prognostic model based on the 10 shared genes by performing stepwise Cox analyses. Our proposed model presented a favorable ability in prognosis forecast and was correlated with the infiltration of immunocytes including B cells, macrophages and T cells. GSEA disclosed that high-risk group was involved in cancer-related pathways. Conclusion: The present project identified the shared genes to uncover the pathogenesis of CC and PE and further proposed and validated a prognostic signature to accurately forecast the clinical outcomes of CC patients.
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Affiliation(s)
| | - Yin Yin
- *Correspondence: Lin Qu, , Yin Yin,
| | - Lin Qu
- *Correspondence: Lin Qu, , Yin Yin,
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Yu L, Li W. Abnormal activation of notch 1 signaling causes apoptosis resistance in cervical cancer. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2022; 15:11-19. [PMID: 35145579 PMCID: PMC8822208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 08/23/2020] [Indexed: 06/14/2023]
Abstract
Notch1 signaling pathway is an evolutionarily conserved and crucial regulator to determine cell fate and differentiation. Notch1 is often over expressed in several cancers, which plays an essential for cancer cell proliferation, survival, invasion and metastasis. The oncogenic function of Notch1 signaling in cervical cancer progression is not well-characterized. In the present study, we showed that Notch1 is significantly enhanced in cervical cancer tissues. Similarly, the relative mRNA and expression of Notch1 protein are significantly upregulated in cervical cancer cell lines such as HeLa and SiHa. Further, we have performed RNAi for NOTCH1 depletion to determine its specific role in cervical cancer progression. Flow cytometry analysis revealed that NOTCH1 depletion leads to activation of apoptotic cell death in cervical cancer. Further, the NOTCH1 depleted cells showed increased sensitivity towards DNA-targeting drugs and therefore cell viability was reduced efficiently. Altogether, our findings suggest that Notch1 overexpression in cervical cancer cells was involved in tumorigenesis and apoptosis resistance of cervical cancer.
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Affiliation(s)
- Lu Yu
- Department of Obstetrics and Gynaecology, People's Hospital of China Three Gorges University Yichang 443000, Hubei, China
| | - Wei Li
- Department of Obstetrics and Gynaecology, People's Hospital of China Three Gorges University Yichang 443000, Hubei, China
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8
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Wang B, Yuan Y, Zou Y, Qi Z, Huang G, Liu Y, Xia S, Huang Y, Huang Z. Fructose-1,6-bisphosphatase 2 represses cervical cancer progression via inhibiting aerobic glycolysis through promoting pyruvate kinase isozyme type M2 ubiquitination. Anticancer Drugs 2022; 33:e198-e206. [PMID: 34387592 DOI: 10.1097/cad.0000000000001185] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Growing evidence has shown that aerobic glycolysis, as a hallmark of cancer cells, plays a crucial role in cervical cancer. The aim of the study is to uncover whether fructose-1,6-bisphosphatase 2 (FBP2) is involved in cervical cancer progression via the aerobic glycolysis pathway. FBP2 levels were determined by quantitative PCR (qPCR) and western blotting. Cell growth viability and apoptosis were tested by cell counting kit-8 (CCK-8) and flow cytometry assays. Immunoprecipitation assay was applied for the detection of the FBP2 effect on pyruvate kinase isozyme type M2 (PKM2) ubiquitination. FBP2 level was decreased in cervical cancer, which is closely linked to shorter overall survival. FBP2 decreased cell growth and aerobic glycolysis and increased cell apoptosis, as well as decreased PKM2 expression and increased its ubiquitination level. The above-mentioned roles of FBP2 were weakened followed by PKM2 overexpression. FBP2 inhibited cervical cancer cell growth via inhibiting aerobic glycolysis by inducing PKM2 ubiquitination.
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Affiliation(s)
- Bi Wang
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education
- School of Basic Medical Science, Guizhou Medical University
| | - Yingnan Yuan
- Department of Interventional Radiology, the Affiliated Hospital of Guizhou Medical University
| | - Yin Zou
- Department of Oncology, the Second Affiliated Hospital of Guizhou Medical University
| | - Zhengjun Qi
- Department of Oncology, the Second Affiliated Hospital of Guizhou Medical University
| | - Guijia Huang
- Department of Oncology, the Second Affiliated Hospital of Guizhou Medical University
| | - Yi Liu
- Department of Gynaecology and Obstetrics, Maternal and Child Health Hospital of Guiyang City, Guiyang, Guizhou
| | - Shan Xia
- Department of Gynecologic Oncology
| | - Yu Huang
- Department of interventional radiology, the Affiliated Cancer Hospital of Guizhou Medical University, Guiyang, China
| | - Zhi Huang
- School of Basic Medical Science, Guizhou Medical University
- Department of Interventional Radiology, the Affiliated Hospital of Guizhou Medical University
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Lin J, Wu S, Ye S, Papa APD, Yang J, Huang S, Arthur G, Zhuge Q, Zhang Y. Oridonin interrupts cellular bioenergetics to suppress glioma cell growth by down-regulating PCK2. Phytother Res 2021; 35:2624-2638. [PMID: 33438793 DOI: 10.1002/ptr.7009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 12/04/2020] [Accepted: 12/16/2020] [Indexed: 12/24/2022]
Abstract
We aim to evaluate the tumor metabolic suppressive activity of Oridonin (extract of Rabdosia rubescens) in glioma and elucidate its potential mechanism. Effects of Oridonin on U251/U87 cells were determined by CCK8, RTCA, colony formation, flow cytometry, wound healing, and Transwell assay. Xenograft tumor model to evaluate the effect of Oridonin on glioma cells in vivo. Cellular bioenergetics were measured by Seahorse. RNA-seq was performed to screen potential biological pathways in Oridonin treated cells. Bioinformatics analysis of PCK2 in glioma was performed based on TCGA/CGGA. Endogenous PCK2 was knocked-down by lentivirus packaged shRNA. We found Oridonin significantly inhibited cell growth in U251/U87 in vitro and in vivo. Both oxygen consumption rate (OCR) and extracellular acidification rate (ECAR) were decreased in Oridonin-treated U251/U87 cells. Oridonin treatment led to PCK2 down-regulation. Additionally, PCK2 was up-regulated in higher grade glioma and correlated with poor outcomes. Furthermore, PCK2 depletion significantly inhibited cell growth and decreased OCR/ECAR in U251/U87 which coincided with the effects of Oridonin. Therefore, we evaluated the potent anti-tumor property of Oridonin in glioma. Importantly, we demonstrated that PCK2 might be a novel target of Oridonin on glioma by inducing energy crisis and increasing oxidative stress.
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Affiliation(s)
- Jianhu Lin
- Zhejiang Provincial Key Laboratory of Aging and Neurological Disorder Research, Department of Neurosurgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Shanshan Wu
- Zhejiang Provincial Key Laboratory of Aging and Neurological Disorder Research, Department of Neurosurgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Sisi Ye
- Zhejiang Provincial Key Laboratory of Aging and Neurological Disorder Research, Department of Neurosurgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Akuetteh Percy David Papa
- Zhejiang Provincial Key Laboratory of Aging and Neurological Disorder Research, Department of Neurosurgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Jianjing Yang
- Zhejiang Provincial Key Laboratory of Aging and Neurological Disorder Research, Department of Neurosurgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Shengwei Huang
- Zhejiang Provincial Key Laboratory of Aging and Neurological Disorder Research, Department of Neurosurgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | | | - Qichuan Zhuge
- Zhejiang Provincial Key Laboratory of Aging and Neurological Disorder Research, Department of Neurosurgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yu Zhang
- Zhejiang Provincial Key Laboratory of Aging and Neurological Disorder Research, Department of Neurosurgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
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10
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LncRNA DLEU2 promotes cervical cancer cell proliferation by regulating cell cycle and NOTCH pathway. Exp Cell Res 2021; 402:112551. [PMID: 33675808 DOI: 10.1016/j.yexcr.2021.112551] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 02/24/2021] [Accepted: 02/27/2021] [Indexed: 12/28/2022]
Abstract
Long noncoding RNAs (lncRNAs) are known to play a crucial role in the onset and progression of cervical cancer (CC). Here, the results of RNA microarray and RNA-sequencing dataset analysis showed that lncRNA DLEU2 was significantly upregulated in CC tissues. Clinicopathologic analysis indicated that lncRNA DLEU2 was closely related to tumor topography. Functional experiments and bioinformatics analysis revealed that lncRNA DLEU2 promoted CC cell proliferation and accelerated the cell cycle. Mechanistically, lncRNA DLEU2 promoted the progression of the cell cycle and inhibited the activity of the Notch signaling pathway by inhibiting p53 expression. Additionally, lncRNA DLEU2 probably interacted with ZFP36 Ring Finger Protein (ZFP36) to inhibit the expression of p53. In conclusion, this study revealed the function of lncRNA DLEU2 in CC tumorigenesis, suggesting new therapeutic targets in CC.
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Wu Y, Chen X, Dong W, Xu Z, Jian Y, Xu C, Zhang L, Wei A, Yu X, Wang S, Wang Y, Liu G, Sun X, Wang S. ST3Gal IV Mediates the Growth and Proliferation of Cervical Cancer Cells In Vitro and In Vivo Via the Notch/p21/CDKs Pathway. Front Oncol 2021; 10:540332. [PMID: 33598419 PMCID: PMC7882721 DOI: 10.3389/fonc.2020.540332] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Accepted: 12/11/2020] [Indexed: 12/24/2022] Open
Abstract
ST3Gal IV is one of the principal sialyltransferases responsible for the biosynthesis of α2, 3-sialic acid to the termini N-glycans or O-glycans of glycoproteins and glycolipids. It has been reported that ST3Gal IV expression is associated with gastric carcinoma, pancreatic adenocarcinoma and breast cancer. While the expression and functions of ST3Gal IV in cervical cancer are still poorly understood. In this study, we found that ST3Gal IV was downregulated in human cervical cancer tissues compared to normal cervix tissues, and ST3Gal IV expression was negatively associated with the pathological grade of cervical cancer. ST3Gal IV upregulation inhibited the growth and proliferation of cervical cancer HeLa and SiHa cells in vitro and in vivo. Furthermore, ST3Gal IV overexpression enhanced the expression of several Notch pathway components such as Jagged1, Notch1, Hes1 and Hey1, while cell cycle protein expression like Cyclin D1, Cyclin E1, CDK2 and CDK4 were decreased. These results indicate that expression of ST3Gal IV is reduced in cervical cancer and plays a negative role in cell proliferation via Notch/p21/CDKs signaling pathway. Thus, sialyltransferase ST3Gal IV might be a target for the diagnosis and therapy of cervical cancer.
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Affiliation(s)
- Yinshuang Wu
- Department of Biochemistry and Molecular Biology, College of Basic Medical Sciences, Institute of Glycobiology, Dalian Medical University, Dalian, China
| | - Xixi Chen
- Department of Biological Sciences, School of Life Science and Medicine, Dalian University of Technology, Panjin, China
| | - Weijie Dong
- Department of Biochemistry and Molecular Biology, College of Basic Medical Sciences, Institute of Glycobiology, Dalian Medical University, Dalian, China
| | - Zhongyang Xu
- Department of Biochemistry and Molecular Biology, College of Basic Medical Sciences, Institute of Glycobiology, Dalian Medical University, Dalian, China
| | - Yuli Jian
- Department of Biochemistry and Molecular Biology, College of Basic Medical Sciences, Institute of Glycobiology, Dalian Medical University, Dalian, China
| | - Chunyan Xu
- Department of Biochemistry and Molecular Biology, College of Basic Medical Sciences, Institute of Glycobiology, Dalian Medical University, Dalian, China
| | - Lin Zhang
- Department of Biochemistry and Molecular Biology, College of Basic Medical Sciences, Institute of Glycobiology, Dalian Medical University, Dalian, China
| | - Anwen Wei
- Department of Gynaecology, Jiaxing University Affiliated Women and Children Hospital, Jiaxing, China
| | - Xiao Yu
- Department of Pathology, College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | - Shidan Wang
- Department of Biochemistry and Molecular Biology, College of Basic Medical Sciences, Institute of Glycobiology, Dalian Medical University, Dalian, China
| | - Yue Wang
- Department of Biochemistry and Molecular Biology, College of Basic Medical Sciences, Institute of Glycobiology, Dalian Medical University, Dalian, China
| | - Gang Liu
- Department of Biochemistry and Molecular Biology, College of Basic Medical Sciences, Institute of Glycobiology, Dalian Medical University, Dalian, China
| | - Xiaoxin Sun
- Department of Biochemistry and Molecular Biology, College of Basic Medical Sciences, Institute of Glycobiology, Dalian Medical University, Dalian, China
| | - Shujing Wang
- Department of Biochemistry and Molecular Biology, College of Basic Medical Sciences, Institute of Glycobiology, Dalian Medical University, Dalian, China
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Orzechowska M, Anusewicz D, Bednarek AK. Functional Gene Expression Differentiation of the Notch Signaling Pathway in Female Reproductive Tract Tissues-A Comprehensive Review With Analysis. Front Cell Dev Biol 2021; 8:592616. [PMID: 33384996 PMCID: PMC7770115 DOI: 10.3389/fcell.2020.592616] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 11/11/2020] [Indexed: 12/13/2022] Open
Abstract
The Notch pathway involves evolutionarily conserved signaling regulating the development of the female tract organs such as breast, ovary, cervix, and uterine endometrium. A great number of studies revealed Notch aberrancies in association with their carcinogenesis and disease progression, the management of which is still challenging. The present study is a comprehensive review of the available literature on Notch signaling during the normal development and carcinogenesis of the female tract organs. The review has been enriched with our analyses of the TCGA data including breast, cervical, ovarian, and endometrial carcinomas concerning the effects of Notch signaling at two levels: the core components and downstream effectors, hence filling the lack of global overview of Notch-driven carcinogenesis and disease progression. Phenotype heterogeneity regarding Notch signaling was projected in two uniform manifold approximation and projection algorithm dimensions, preceded by the principal component analysis step reducing the data burden. Additionally, overall and disease-free survival analyses were performed with the optimal cutpoint determination by Evaluate Cutpoints software to establish the character of particular Notch components in tumorigenesis. In addition to the review, we demonstrated separate models of the examined cancers of the Notch pathway and its targets, although expression profiles of all normal tissues were much more similar to each other than to its cancerous compartments. Such Notch-driven cancerous differentiation resulted in a case of opposite association with DFS and OS. As a consequence, target genes also show very distinct profiles including genes associated with cell proliferation and differentiation, energy metabolism, or the EMT. In conclusion, the observed Notch associations with the female tract malignancies resulted from differential expression of target genes. This may influence a future analysis to search for new therapeutic targets based on specific Notch pathway profiles.
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Affiliation(s)
| | - Dorota Anusewicz
- Department of Molecular Carcinogenesis, Medical University of Lodz, Lodz, Poland
| | - Andrzej K Bednarek
- Department of Molecular Carcinogenesis, Medical University of Lodz, Lodz, Poland
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Safe S, Karki K. The Paradoxical Roles of Orphan Nuclear Receptor 4A (NR4A) in Cancer. Mol Cancer Res 2020; 19:180-191. [PMID: 33106376 DOI: 10.1158/1541-7786.mcr-20-0707] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 09/22/2020] [Accepted: 10/19/2020] [Indexed: 11/16/2022]
Abstract
The three-orphan nuclear receptor 4A genes are induced by diverse stressors and stimuli, and there is increasing evidence that NR4A1 (Nur77), NR4A2 (Nurr1), and NR4A3 (Nor1) play an important role in maintaining cellular homeostasis and in pathophysiology. In blood-derived tumors (leukemias and lymphomas), NR4A expression is low and NR4A1-/-/NR4A3-/- double knockout mice rapidly develop acute myelocytic leukemia, suggesting that these receptors exhibit tumor suppressor activity. Treatment of leukemia and most lymphoma cells with drugs that induce expression of NR4A1and NR4A3 enhances apoptosis, and this represents a potential clinical application for treating this disease. In contrast, most solid tumor-derived cell lines express high levels of NR4A1 and NR4A2, and both receptors exhibit pro-oncogenic activities in solid tumors, whereas NR4A3 exhibits tumor-specific activities. Initial studies with retinoids and apoptosis-inducing agents demonstrated that their cytotoxic activity is NR4A1 dependent and involved drug-induced nuclear export of NR4A1 and formation of a mitochondrial proapoptotic NR4A1-bcl-2 complex. Drug-induced nuclear export of NR4A1 has been reported for many agents/biologics and involves interactions with multiple mitochondrial and extramitochondrial factors to induce apoptosis. Synthetic ligands for NR4A1, NR4A2, and NR4A3 have been identified, and among these compounds, bis-indole derived (CDIM) NR4A1 ligands primarily act on nuclear NR4A1 to inhibit NR4A1-regulated pro-oncogenic pathways/genes and similar results have been observed for CDIMs that bind NR4A2. Based on results of laboratory animal studies development of NR4A inducers (blood-derived cancers) and NR4A1/NR4A2 antagonists (solid tumors) may be promising for cancer therapy and also for enhancing immune surveillance.
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Affiliation(s)
- Stephen Safe
- Department of Veterinary Physiology and Pharmacology, Texas A&M University, College Station, Texas.
| | - Keshav Karki
- Department of Veterinary Physiology and Pharmacology, Texas A&M University, College Station, Texas
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Role of Nurr1 in Carcinogenesis and Tumor Immunology: A State of the Art Review. Cancers (Basel) 2020; 12:cancers12103044. [PMID: 33086676 PMCID: PMC7590204 DOI: 10.3390/cancers12103044] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 10/12/2020] [Accepted: 10/14/2020] [Indexed: 12/11/2022] Open
Abstract
Simple Summary Nuclear receptor related-1 protein (Nurr1) emerges as a therapeutic target in multiple malignancies and immunotherapies. Previous studies have highlighted its association with clinicopathological parameters, tumorigenesis and therapeutic resistance in cancers. In addition, recent studies unraveled its contribution to the suppression of antitumor immunity, suggesting that inhibition of Nurr1 is a potential method to repress cancer aggressiveness and disrupt tumor immune tolerance. In line with this evidence, the present review provides the roles of Nurr1 in tumor progression and the associated underlying molecular mechanisms. Moreover, the significance of Nurr1 in promoting immune tolerance and potential strategies for Nurr1 inhibition are highlighted. Abstract Nuclear receptor related-1 protein (Nurr1), coded by an early response gene, is involved in multiple cellular and physiological functions, including proliferation, survival, and self-renewal. Dysregulation of Nurr1 has been frequently observed in many cancers and is attributed to multiple transcriptional and post-transcriptional mechanisms. Besides, Nurr1 exhibits extensive crosstalk with many oncogenic and tumor suppressor molecules, which contribute to its potential pro-malignant behaviors. Furthermore, Nurr1 is a key player in attenuating antitumor immune responses. It not only potentiates immunosuppressive functions of regulatory T cells but also dampens the activity of cytotoxic T cells. The selective accessibility of chromatin by Nurr1 in T cells is closely associated with cell exhaustion and poor efficacy of cancer immunotherapy. In this review, we summarize the reported findings of Nurr1 in different malignancies, the mechanisms that regulate Nurr1 expression, and the downstream signaling pathways that Nurr1 employs to promote a wide range of malignant phenotypes. We also give an overview of the association between Nurr1 and antitumor immunity and discuss the inhibition of Nurr1 as a potential immunotherapeutic strategy.
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Wan PKT, Leung THY, Siu MKY, Mo XT, Tang HWM, Chan KKL, Cheung ANY, Ngan HYS. HPV-induced Nurr1 promotes cancer aggressiveness, self-renewal, and radioresistance via ERK and AKT signaling in cervical cancer. Cancer Lett 2020; 497:14-27. [PMID: 33010383 DOI: 10.1016/j.canlet.2020.09.025] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 09/15/2020] [Accepted: 09/24/2020] [Indexed: 12/25/2022]
Abstract
Human papillomavirus (HPV) is the etiological agent of cervical cancer; however, the mechanisms underlying HPV-mediated carcinogenesis remain poorly understood. Here, we showed that nuclear receptor related-1 protein (Nurr1) was upregulated in primary cervical cancer tissue-derived spheroid cells and HPV-positive cell lines, and Nurr1 upregulation was correlated with cancer grade. Nurr1 promoted cell proliferation, migration, invasion, and anchorage-independent cell growth. In addition to its effect on cancer aggressiveness, Nurr1 enhanced the self-renewal ability of cells in vitro and in vivo, underscoring the importance of Nurr1 in maintaining the stemness of cancer stem-like cells (CSLCs). Mechanistically, Nurr1 independently activated the MEK/ERK and PI3K/Akt/mTOR signaling cascades. The MEK inhibitor trametinib (GSK) and PI3K/mTOR dual inhibitor dactolisib (BEZ) were shown to abrogate Nurr1-augmented tumorigenesis by upregulating p21 and p27 expression and by suppressing MMP9 and KLF4 expression. We provided further evidence that BEZ, but not GSK, could abolish Nurr1-enhanced radioresistance, suggesting its potential value for radiosensitizing CSLCs in the clinical setting. This study highlights the unprecedented roles of Nurr1 and elucidates mechanisms by which Nurr1 promotes tumor progression and radioresistance, providing a novel therapeutic strategy for cervical cancer treatment.
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Affiliation(s)
- Peter Kok-Ting Wan
- Department of Obstetrics and Gynaecology, LKS Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region of China
| | - Thomas Ho-Yin Leung
- Department of Obstetrics and Gynaecology, LKS Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region of China
| | - Michelle Kwan-Yee Siu
- Department of Obstetrics and Gynaecology, LKS Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region of China
| | - Xue-Tang Mo
- Department of Obstetrics and Gynaecology, LKS Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region of China
| | - Hermit Wai-Man Tang
- Department of Obstetrics and Gynaecology, LKS Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region of China
| | - Karen Kar-Loen Chan
- Department of Obstetrics and Gynaecology, LKS Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region of China
| | - Annie Nga-Yin Cheung
- Department of Pathology, LKS Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region of China
| | - Hextan Yuen-Sheung Ngan
- Department of Obstetrics and Gynaecology, LKS Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region of China.
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LncRNA MSC-AS1 aggravates nasopharyngeal carcinoma progression by targeting miR-524-5p/nuclear receptor subfamily 4 group A member 2 (NR4A2). Cancer Cell Int 2020; 20:138. [PMID: 32368184 PMCID: PMC7189691 DOI: 10.1186/s12935-020-01202-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 04/03/2020] [Indexed: 01/01/2023] Open
Abstract
Background Nasopharyngeal carcinoma (NPC) is a subtype of head and neck cancer with dismal prognosis and high relapse rate. The role of long non-coding RNAs (lncRNAs) in NPC has become a research hotspot in recent years. This study aimed to interrogate the function and mechanism of lncRNA MSC antisense RNA 1 (MSC-AS1) in NPC. Methods MSC-AS1 level in NPC tissues and cells were detected by RT-qPCR. Function of MSC-AS1 in NPC cells was assessed by CCK-8, EdU, TUNEL, caspase-3 activity, and transwell invasion assay. Interaction of microRNA-524-5p (miR-524-5p) with MSC-AS1 and nuclear receptor subfamily 4 group A member 2 (NR4A2) was determined by RIP and luciferase reporter assays. Results MSC-AS1 was upregulated in NPC tissues and cells. Functional assays indicated that MSC-AS1 exacerbated cell proliferation, hindered apoptosis, and facilitated invasion and epithelial-to-mesenchymal transition (EMT) in NPC. Mechanistically, MSC-AS1 sequestered miR-524-5p to upregulate NR4A2 expression in NPC cells. Finally, NR4A2 was conformed as an oncogene in NPC, and overexpressed NR4A2 could restore MSC-AS1 knockdown-mediated inhibition on NPC progression. Conclusions Our study firstly showed that lncRNA MSC-AS1 aggravated NPC progression by sponging miR-524-5p to increase NR4A2 expression, indicating MSC-AS1 as a novel target for the lncRNA-targeted therapy in NPC.
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Molecular modeling and LC-MS-based metabolomics of a glutamine-valproic acid (Gln-VPA) derivative on HeLa cells. Mol Divers 2020; 25:1077-1089. [PMID: 32328963 DOI: 10.1007/s11030-020-10089-z] [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: 01/07/2020] [Accepted: 04/11/2020] [Indexed: 10/24/2022]
Abstract
Glutaminase plays an important role in carcinogenesis and cancer cell growth. This biological target is interesting against cancer cells. Therefore, in this work, in silico [docking and molecular dynamics (MD) simulations] and in vitro methods (antiproliferative and LC-MS metabolomics) were employed to assay a hybrid compound derived from glutamine and valproic acid (Gln-VPA), which was compared with 6-diazo-5-oxo-L-norleucine (DON, a glutaminase inhibitor) and VPA (contained in Gln-VPA structure). Docking results from some snapshots retrieved from MD simulations show that glutaminase recognized Gln-VPA and DON. Additionally, Gln-VPA showed antiproliferative effects in HeLa cells and inhibited glutaminase activity. Finally, the LC-MS-based metabolomics studies on HeLa cells treated with either Gln-VPA (IC60 = 8 mM) or DON (IC50 = 3.5 mM) show different metabolomics behaviors, suggesting that they modulate different biological targets of the cell death mechanism. In conclusion, Gln-VPA is capable of interfering with more than one pharmacological target of cancer, making it an interesting drug that can be used to avoid multitherapy of classic anticancer drugs.
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Karki K, Li X, Jin UH, Mohankumar K, Zarei M, Michelhaugh SK, Mittal S, Tjalkens R, Safe S. Nuclear receptor 4A2 (NR4A2) is a druggable target for glioblastomas. J Neurooncol 2019; 146:25-39. [PMID: 31754919 DOI: 10.1007/s11060-019-03349-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Accepted: 11/15/2019] [Indexed: 01/17/2023]
Abstract
INTRODUCTION The orphan nuclear receptor 4A2 (NR4A2) has been extensively characterized in subcellular regions of the brain and is necessary for the function of dopaminergic neurons. The NR4A2 ligand, 1,1-bis (31-indoly1)-1-(p-chlorophenyl)methane (DIM-C-pPhCl) inhibits markers of neuroinflammation and degeneration in mouse models and in this study we investigated expression and function of NR4A2 in glioblastoma (GBM). METHODS Established and patient-derived cell lines were used as models and the expression and functions of NR4A2 were determined by western blots and NR4A2 gene silencing by antisense oligonucleotides respectively. Effects of NR4A2 knockdown and DIM-C-pPhCl on cell growth, induction of apoptosis (Annexin V Staining) and migration/invasion (Boyden chamber and spheroid invasion assay) and transactivation of NR4A2-regulated reporter genes were determined. Tumor growth was investigated in athymic nude mice bearing U87-MG cells as xenografts. RESULTS NR4A2 knockdown and DIM-C-pPhCl inhibited GBM cell and tumor growth, induced apoptosis and inhibited migration and invasion of GBM cells. DIM-C-pPhCl and related analogs also inhibited NR4A2-regulated transactivation (luciferase activity) confirming that DIM-C-pPhCl acts as an NR4A2 antagonist and blocks NR4A2-dependent pro-oncogenic responses in GBM. CONCLUSION We demonstrate for the first time that NR4A2 is pro-oncogenic in GBM and thus a potential druggable target for patients with tumors expressing this receptor. Moreover, our bis-indole-derived NR4A2 antagonists represent a novel class of anti-cancer agents with potential future clinical applications for treating GBM.
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Affiliation(s)
- Keshav Karki
- Department of Veterinary Physiology and Pharmacology, Texas A&M University, College Station, TX, 77843, USA
| | - Xi Li
- Department of Veterinary Physiology and Pharmacology, Texas A&M University, College Station, TX, 77843, USA
| | - Un-Ho Jin
- Department of Veterinary Physiology and Pharmacology, Texas A&M University, College Station, TX, 77843, USA
| | - Kumaravel Mohankumar
- Department of Veterinary Physiology and Pharmacology, Texas A&M University, College Station, TX, 77843, USA
| | - Mahsa Zarei
- Department of Veterinary Physiology and Pharmacology, Texas A&M University, College Station, TX, 77843, USA
| | | | - Sandeep Mittal
- Department of Surgery, Virginia Tech University, Roanoke, VA, 24016, USA
| | - Ronald Tjalkens
- Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, CO, 80523, USA
| | - Stephen Safe
- Department of Veterinary Physiology and Pharmacology, Texas A&M University, College Station, TX, 77843, USA. .,Department of Veterinary Physiology & Pharmacology, College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, 4466 TAMU, College Station, TX, 77843-4466, USA.
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Li L, Lin G, Gu H, Yu L, Ni C. Effects of Srxn1 on growth and Notch signalling of astrocyte induced by hydrogen peroxide. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2019; 47:1917-1923. [PMID: 31079497 DOI: 10.1080/21691401.2019.1614016] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
OBJECTIVE To investigate the effect of Sulfiredoxin-1 (Srxn1) on astrocyte injury induced by hydrogen peroxide (H2O2). METHODS Observing the changes of H2O2 on contents of lactate dehydrogenase (LDH), malondialdehyde (MDA), superoxide dismutase (SOD) and apoptosis after transfected Srxn1 siRNA into astrocytes. The protein expression of Notch 1, NICD and Hes1, the content of LDH and MDA, the activity of SOD and apoptosis rate of astrocytes after inhibiting or activation of Notch signalling pathway were detected by Western blot, ELISA and flow cytometry, respectively. RESULTS Knockdown of Srxn1 could promote the secretion of LDH and MDA, decrease the activity of SOD and aggravate apoptosis of astrocytes induced by H2O2. The results of Western blot, ELISA assay and flow cytometry indicated that activation of the Notch signalling pathway attenuated the effect of Srxn1 on H2O2-induced oxidative damage and apoptosis of astrocytes. CONCLUSION Srxn1 may protect astrocytes from oxidative stress injury induced by H2O2 by activation of Notch signalling pathway.
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Affiliation(s)
- Lan Li
- a Department of Neurology , Second Affiliated Hospital of Dalian Medical University , Dalian City , Liaoning , China
| | - Guangjun Lin
- a Department of Neurology , Second Affiliated Hospital of Dalian Medical University , Dalian City , Liaoning , China
| | - Huizi Gu
- a Department of Neurology , Second Affiliated Hospital of Dalian Medical University , Dalian City , Liaoning , China
| | - Lei Yu
- b Department of Neurology , Dalian Friendship Hospital , Dalian City , Liaoning , China
| | - Changwei Ni
- a Department of Neurology , Second Affiliated Hospital of Dalian Medical University , Dalian City , Liaoning , China
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Function of Nr4a Orphan Nuclear Receptors in Proliferation, Apoptosis and Fuel Utilization Across Tissues. Cells 2019; 8:cells8111373. [PMID: 31683815 PMCID: PMC6912296 DOI: 10.3390/cells8111373] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 10/24/2019] [Accepted: 10/30/2019] [Indexed: 12/21/2022] Open
Abstract
The Nr4a family of nuclear hormone receptors is composed of three members-Nr4a1/Nur77, Nr4a2/Nurr1 and Nr4a3/Nor1. While currently defined as ligandless, these transcription factors have been shown to regulate varied processes across a host of tissues. Of particular interest, the Nr4a family impinge, in a tissue dependent fashion, on cellular proliferation, apoptosis and fuel utilization. The regulation of these processes occurs through both nuclear and non-genomic pathways. The purpose of this review is to provide a balanced perspective of the tissue specific and Nr4a family member specific, effects on cellular proliferation, apoptosis and fuel utilization.
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Notch signalling in cervical cancer. Exp Cell Res 2019; 385:111682. [PMID: 31634483 DOI: 10.1016/j.yexcr.2019.111682] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 10/12/2019] [Accepted: 10/16/2019] [Indexed: 12/13/2022]
Abstract
The initial discovery of key developmental signalling pathways, largely using classical genetic approaches in model organisms, was followed by an intense burst of characterisation of the molecular components. Studies also began demonstrating a role for these pathways in oncogenesis. Patterns of mutations in Notch pathway components, such as those reported in subsets of hematological malignancies, have been easier to study, and the cumulative information is leading to potentially new therapies. However, it has been more challenging to clearly define the role of the Notch pathway in human solid tumours, given the absence of widespread specific activating or repressive mutations in key components of the pathway. In this review, we trace more than two decades of work looking at the role of Notch signalling in human cervical cancer progression. We document the contrasting reports on a tumour suppressive role and pro-oncogenic role in cervical cancers. However, an analysis of recent genomic data strikingly shows both widespread features of Notch expression and genetic changes that largely amplify positive regulators and delete negative controllers of the Notch pathway. This analysis reinforces a largely pro-oncogenic role for Notch signalling and lays the foundation for a nuanced exploration of synergistic and targeted therapies. Lastly, we further trace some of the complex challenges in advanced cervical cancer progression, including issues of cancer stem cells and metastasis.
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Long J, Wang X, Du X, Pan H, Wang J, Li Z, Liu H, Li X, Zheng Z. JAG2/Notch2 inhibits intervertebral disc degeneration by modulating cell proliferation, apoptosis, and extracellular matrix. Arthritis Res Ther 2019; 21:213. [PMID: 31619270 PMCID: PMC6796488 DOI: 10.1186/s13075-019-1990-z] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2019] [Accepted: 09/05/2019] [Indexed: 03/08/2023] Open
Abstract
Background Intervertebral disc degeneration (IVDD)-related disorders are the major causes of low back pain. A previous study suggested that Notch activation serves as a protective mechanism and is a part of the compensatory response that maintains the necessary resident nucleus pulposus (NP) cell proliferation to replace lost or non-functional cells. However, the exact mechanism remains to be determined. In this study, we aimed to investigate the role of JAG2/Notch2 in NP cell proliferation and apoptosis. Methods Recombinant JAG2 or Notch2, Hes1, and Hey2 siRNAs were used to activate or inhibit Notch signaling. Cell proliferation, apoptosis, cell cycle regulatory factors, and pathways associated with Notch-mediated proliferation were examined. In vivo experiments involving an intradiscal injection of Sprague-Dawley rats were performed. Results Recombinant JAG2 induced Notch2 and Hes1/Hey2 expression together with NP cell proliferation. Downregulation of Notch2/Hes1/Hey2 induced G0/G1 phase cell cycle arrest in NP cells. Moreover, Notch2 mediated NP cell proliferation by regulating cyclin D1 and by activating PI3K/Akt and Wnt/β-catenin signaling. Furthermore, Notch signaling inhibited TNF-α-promoted NP cell apoptosis by suppressing the formation of the RIP1-FADD-caspase-8 complex. Finally, we found that intradiscal injection of JAG2 alleviated IVDD and that sh-Notch2 aggravated IVDD in a rat model. These results indicated that JAG2/Notch2 inhibited IVDD by modulating cell proliferation, apoptosis, and extracellular matrix. The JAG2/Notch2 axis regulated NP cell proliferation via PI3K/Akt and Wnt/β-catenin signaling and inhibited TNF-α-induced apoptosis by suppressing the formation of the RIP1-FADD-caspase-8 complex. Conclusions The current and previous results shed light on the therapeutic implications of targeting the JAG2/Notch2 axis to inhibit or reverse IVDD.
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Affiliation(s)
- Jun Long
- Department of Spine Surgery, First Affiliated Hospital of Sun Yat-sen University, 58 Zhongshan Second Road, Guangzhou, People's Republic of China
| | - Xiaobo Wang
- Organ Transplant Center, The First Affiliated Hospital of Sun Yat-sen University, 58 Zhongshan Second Road, Guangzhou, People's Republic of China
| | - Xianfa Du
- Department of Spine Surgery, First Affiliated Hospital of Sun Yat-sen University, 58 Zhongshan Second Road, Guangzhou, People's Republic of China
| | - Hehai Pan
- Department of Spine Surgery, First Affiliated Hospital of Sun Yat-sen University, 58 Zhongshan Second Road, Guangzhou, People's Republic of China
| | - Jianru Wang
- Department of Spine Surgery, First Affiliated Hospital of Sun Yat-sen University, 58 Zhongshan Second Road, Guangzhou, People's Republic of China
| | - Zemin Li
- Department of Spine Surgery, First Affiliated Hospital of Sun Yat-sen University, 58 Zhongshan Second Road, Guangzhou, People's Republic of China
| | - Hui Liu
- Department of Spine Surgery, First Affiliated Hospital of Sun Yat-sen University, 58 Zhongshan Second Road, Guangzhou, People's Republic of China
| | - Xudong Li
- Pain Research Center and Department of Physiology, Zhongshan Medical School of Sun Yat-sen University, 74 Zhongshan Second Road, Guangzhou, People's Republic of China
| | - Zhaomin Zheng
- Department of Spine Surgery, First Affiliated Hospital of Sun Yat-sen University, 58 Zhongshan Second Road, Guangzhou, People's Republic of China. .,Pain Research Center and Department of Physiology, Zhongshan Medical School of Sun Yat-sen University, 74 Zhongshan Second Road, Guangzhou, People's Republic of China.
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LMX1B mRNA expression and its gene body CpG methylation are valuable prognostic biomarkers for laryngeal squamous cell carcinoma. Biomed Pharmacother 2019; 117:109174. [PMID: 31387183 DOI: 10.1016/j.biopha.2019.109174] [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: 05/02/2019] [Revised: 06/15/2019] [Accepted: 06/25/2019] [Indexed: 01/07/2023] Open
Abstract
This study aimed to explore the prognostic value of LMX1B mRNA expression and the methylation of its CpG sites in patients with laryngeal squamous cell carcinoma (LSCC). An in-silicon analysis was performed using data from the cancer genome atlas (TCGA)-Head and Neck Squamous Carcinoma (HNSC). After screening, 112 LSCC and 10 adjacent normal tissues were identified as eligible samples for analysis. Results showed that LMX1B expression was significantly upregulated in the cancer tissues (p < 0.01) and was an independent prognostic indicator in terms of OS (HR: 1.233, 95%CI: 1.082-1.405, p = 0.002) and RFS (HR: 1.200, 95%CI: 1.002-1.438, p = 0.048). By examining the methylation profile of 55 CpG sites in LMX1B locus, we found that the promoter methylation status was irrelevant to LMX1B expression. In comparison, LMX1B expression was generally positively correlated with gene body methylation. Among the gene body CpG sites, cg13600622 methylation showed a better predictive value than LMX1B expression in terms of OS (HR: 12.363, 95%CI: 1.076-142.033, p = 0.043), while cg14204784 methylation was a better marker of shorter RFS (HR: 12.363, 95%CI: 1.076-142.033, p = 0.043). Among the known downstream genes of LMX1B, only NR4A2 expression showed a moderately negative correlation (Pearson's r = -0.54) with it in LSCC tissues. However, this correlation was inconsistent with previous publications those reported a positive correlation between them. Based on these findings, we infer that upregulated LMX1B mRNA expression had an independent prognostic value in LSCC patients. Increased gene body methylation might be an important mechanism of its upregulation. Among the gene body CpG sites, cg13600622 and cg14204784 methylation level might be better prognostic markers than LMX1B mRNA expression in terms of OS and RFS respectively.
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Chen PF, Wang F, Zhang ZX, Nie JY, Liu L, Feng JR, Zhou R, Wang HL, Liu J, Zhao Q. A novel gene-pair signature for relapse-free survival prediction in colon cancer. Cancer Manag Res 2018; 10:4145-4153. [PMID: 30323670 PMCID: PMC6175542 DOI: 10.2147/cmar.s176260] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Background Colon cancer (CC) patients with early relapse usually have a poor prognosis. In this study, we aimed to identify a novel signature to improve the prediction of relapse-free survival (RFS) in CC. Methods Four microarray datasets were merged into a training set (n=1,045), and one RNA-sequencing dataset was used as a validation set (n=384). In the training set, microarray meta-analysis screened out 596 common RFS-related genes across datasets, which were used to construct 177,310 gene pairs. Then, the LASSO penalized generalized linear model identified 16 RFS-related gene pairs, and a risk score was calculated for each sample according to the model coefficients. Results The risk score demonstrated a good ability in predicting RFS (area under the curve [AUC] at 5 years: 0.724; concordance index [C-index]: 0.642, 95% CI: 0.615–0.669). High-risk patients showed a poorer prognosis than low-risk patients (HR: 3.519, 95% CI: 2.870–4.314). Subgroup analysis reached consistent results when considering multiple confounders. In the validation set, the risk score had a similar performance (AUC at 5 years: 0.697; C-index: 0.696, 95% CI: 0.627–0.766; HR: 2.926, 95% CI: 1.892–4.527). When compared with a 13-gene signature, a 15-gene signature, and TNM stage, the score showed a better performance (P<0.0001; P=0.0004; P=0.0125), especially for the patients with a longer follow-up (R2=0.988, P<0.0001). When the follow-up was >5 years (n=314), the score demonstrated an excellent performance (C-index: 0.869, 95% CI: 0.816–0.922; HR: 13.55, 95% CI: 7.409–24.78). Conclusion Our study identified a novel gene-pair signature for prediction of RFS in CC.
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Affiliation(s)
- Peng-Fei Chen
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan 430071, China, ; .,Hubei Clinical Center & Key Lab of Intestinal & Colorectal Diseases, Wuhan 430071, China, ; .,Department of Gastroenterology, The Central Hospital of Enshi Autonomous Prefecture, Enshi 445000, China
| | - Fan Wang
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan 430071, China, ; .,Hubei Clinical Center & Key Lab of Intestinal & Colorectal Diseases, Wuhan 430071, China, ;
| | - Zi-Xiong Zhang
- Department of Otolaryngology, The Central Hospital of Enshi Autonomous Prefecture, Enshi 445000, China
| | - Jia-Yan Nie
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan 430071, China, ; .,Hubei Clinical Center & Key Lab of Intestinal & Colorectal Diseases, Wuhan 430071, China, ;
| | - Lan Liu
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan 430071, China, ; .,Hubei Clinical Center & Key Lab of Intestinal & Colorectal Diseases, Wuhan 430071, China, ;
| | - Jue-Rong Feng
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan 430071, China, ; .,Hubei Clinical Center & Key Lab of Intestinal & Colorectal Diseases, Wuhan 430071, China, ;
| | - Rui Zhou
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan 430071, China, ; .,Hubei Clinical Center & Key Lab of Intestinal & Colorectal Diseases, Wuhan 430071, China, ;
| | - Hong-Ling Wang
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan 430071, China, ; .,Hubei Clinical Center & Key Lab of Intestinal & Colorectal Diseases, Wuhan 430071, China, ;
| | - Jing Liu
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan 430071, China, ; .,Hubei Clinical Center & Key Lab of Intestinal & Colorectal Diseases, Wuhan 430071, China, ;
| | - Qiu Zhao
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan 430071, China, ; .,Hubei Clinical Center & Key Lab of Intestinal & Colorectal Diseases, Wuhan 430071, China, ;
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Qiao F, Li N, Li W. Integrative Bioinformatics Analysis Reveals Potential Long Non-Coding RNA Biomarkers and Analysis of Function in Non-Smoking Females with Lung Cancer. Med Sci Monit 2018; 24:5771-5778. [PMID: 30120911 PMCID: PMC6110140 DOI: 10.12659/msm.908884] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Lung cancer is the most lethal cancer worldwide. The aim of this study was to identify the tumor-related lncRNAs and explore their functions in female non-smokers with lung cancer. MATERIAL AND METHODS The gene expression microarray datasets GSE19804, GSE31210, and GSE31548 were downloaded from the Gene Expression Omnibus database. The differentially-expressed lncRNAs between non-smoking female lung cancer samples and non-tumor lung tissues were identified using GEO2R. RESULTS In total, 25, 40, and 15 differentially-expressed lncRNAs were obtained from GSE19804, GSE31210, and GSE31548 datasets (|logFC| >1, adj. P<0.05), respectively. Eight lncRNAs were screened out in all 3 datasets. Of these, 5 lncRNAs were up-regulated and 3 lncRNAs were down-regulated in lung cancer tissues compared to non-tumor lung tissues. Then, the target miRNAs of aberrantly expressed lncRNAs and target mRNAs corresponding to miRNAs were predicted. Subsequently, the ceRNA network with 8 key lncRNAs, 20 miRNAs, and 38 mRNAs were constructed. Functional and pathway enrichment analysis showed these target genes were mainly enriched in biological processes associated with protein binding, nucleus, metal ion binding, regulation of transcription from RNA polymerase II promoter, nucleic acid binding, cell differentiation, microRNAs in cancer, and the hippo signaling pathway. Survival analysis of these lncRNAs revealed that low LINC00968 (P=0.0067) and TBX5-AS1 (P=0.0028) expression were associated with unfavorable prognosis in never-smoking female lung cancer patients. CONCLUSIONS The present study promotes understanding of the molecular mechanism of the pathogenesis of non-smoking female lung cancer and provides potential biomarkers for diagnosis and treatment.
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Affiliation(s)
- Fang Qiao
- Department of Geriatrics, Xiangya Hospital of Central South University, Changsha, Hunan, China (mainland)
| | - Na Li
- Department of Pathology, The First Affiliated Hospital of Hunan University of Medicine, Huaihua, Hunan, China (mainland)
| | - Wei Li
- Department of Geriatrics, Xiangya Hospital of Central South University, Changsha, Hunan, China (mainland).,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital of Central South University, Changsha, Hunan, China (mainland)
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26
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Aco-Tlachi M, Carreño-López R, Martínez-Morales PL, Maycotte P, Aguilar-Lemarroy A, Jave-Suárez LF, Santos-López G, Reyes-Leyva J, Vallejo-Ruiz V. Glycogene expression profiles based on microarray data from cervical carcinoma HeLa cells with partially silenced E6 and E7 HPV oncogenes. Infect Agent Cancer 2018; 13:25. [PMID: 30038662 PMCID: PMC6053821 DOI: 10.1186/s13027-018-0197-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Accepted: 07/09/2018] [Indexed: 12/19/2022] Open
Abstract
Background Aberrant glycosylation is a characteristic of tumour cells. The expression of certain glycan structures has been associated with poor prognosis. In cervical carcinoma, changes in the expression levels of some glycogenes have been associated with lymph invasion. Human papillomavirus (HPV) infection is one of the most important factors underlying the development of cervical cancer. The HPV oncoproteins E6 and E7 have been implicated in cervical carcinogenesis and can modify the host gene expression profile. The roles of these oncoproteins in glycosylation changes have not been previously reported. Methods To determine the effect of the E6 and E7 oncoproteins on glycogene expression we partially silenced the E6 and E7 oncogenes in HeLa cells, we performed a microarray expression assay to identify altered glycogenes and quantified the mRNA levels of glycogenes by RT-qPCR. A protein-protein interaction network was constructed to identify potentially altered glycosylation pathways. Results The microarray analysis showed 9 glycogenes that were upregulated and 7 glycogenes that were downregulated in HeLa shE6/E7 cells. Some of these genes participate in glycosylation related to Notch proteins and O-glycans antigens. Conclusions Our results support that E6 and E7 oncoproteins could modify glycogene expression the products of which participate in the synthesis of structures implicated in proliferation, adhesion and apoptosis.
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Affiliation(s)
- Miguel Aco-Tlachi
- 1Centro de Investigación Biomédica de Oriente, Instituto Mexicano del Seguro Social, Km. 4.5 Carretera Federal Atlixco-Metepec, Atlixco, C.P. 74360 Puebla, Mexico.,2Posgrado en Ciencias Microbiológicas, Benemérita Universidad Autónoma de Puebla, Edificio 103-J Cd. Universitaria, Col. San Manuel, C.P. 72570 Puebla, Pue Mexico
| | - Ricardo Carreño-López
- 2Posgrado en Ciencias Microbiológicas, Benemérita Universidad Autónoma de Puebla, Edificio 103-J Cd. Universitaria, Col. San Manuel, C.P. 72570 Puebla, Pue Mexico
| | - Patricia L Martínez-Morales
- 4CONACYT- Centro de Investigación Biomédica de Oriente, Instituto Mexicano del Seguro Social, Km. 4.5 Carretera Federal Atlixco-Metepec, Atlixco, C.P. 74360 Puebla, Mexico
| | - Paola Maycotte
- 4CONACYT- Centro de Investigación Biomédica de Oriente, Instituto Mexicano del Seguro Social, Km. 4.5 Carretera Federal Atlixco-Metepec, Atlixco, C.P. 74360 Puebla, Mexico
| | - Adriana Aguilar-Lemarroy
- 3Centro de Investigación Biomédica de Occidente, Instituto Mexicano del Seguro Social, Sierra Mojada 800, Col Independencia, C.P. 44340 Guadalajara, Jalisco Mexico
| | - Luis Felipe Jave-Suárez
- 3Centro de Investigación Biomédica de Occidente, Instituto Mexicano del Seguro Social, Sierra Mojada 800, Col Independencia, C.P. 44340 Guadalajara, Jalisco Mexico
| | - Gerardo Santos-López
- 1Centro de Investigación Biomédica de Oriente, Instituto Mexicano del Seguro Social, Km. 4.5 Carretera Federal Atlixco-Metepec, Atlixco, C.P. 74360 Puebla, Mexico
| | - Julio Reyes-Leyva
- 1Centro de Investigación Biomédica de Oriente, Instituto Mexicano del Seguro Social, Km. 4.5 Carretera Federal Atlixco-Metepec, Atlixco, C.P. 74360 Puebla, Mexico
| | - Verónica Vallejo-Ruiz
- 1Centro de Investigación Biomédica de Oriente, Instituto Mexicano del Seguro Social, Km. 4.5 Carretera Federal Atlixco-Metepec, Atlixco, C.P. 74360 Puebla, Mexico
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Loss of nuclear NOTCH1, but not its negative regulator NUMB, is an independent predictor of cervical malignancy. Oncotarget 2018; 9:18916-18928. [PMID: 29721172 PMCID: PMC5922366 DOI: 10.18632/oncotarget.24828] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Accepted: 02/24/2018] [Indexed: 12/29/2022] Open
Abstract
The participation of NOTCH signaling in invasive cervical cancer (ICC) remains controversial since both tumor suppressive and oncogenic properties have been described. Additionally, the role of NUMB, a negative regulator of NOTCH, remains unclear in ICC. We aimed to investigate the role of NOTCH1 and NUMB expression and their localization in cervical intraepithelial neoplasia (CIN) and ICC samples. A total of 144 biopsies were obtained from the Instituto Nacional de Cancerología, México from 2004 to 2017, and were subjected to immunohistochemistry for NOTCH1 and NUMB. We found that nuclear NOTCH1 expression was more frequently found in CIN samples compared with ICC (77.55% vs. 15.79%, p = 0.001). NUMB was almost exclusively found in the nucleus of CIN samples (32.65% vs. 6.32%, p = 0.001). Cytoplasmic expression of NOTCH1 (44.21%) and NUMB (35.79%) was the most frequent localization in ICC. Multivariable-adjusted analysis showed that the loss of nuclear NOTCH1 expression was an independent predictor of malignancy (β = -3.428, 95% confidence interval [95% CI] = -5.127, -1.728, p = 0.001). In contrast, the association between cytoplasmic NUMB expression and cervical cancer was lost after adjusting for nuclear NOTCH1 expression (β = 2.074, 95% [CI] = -0.358, 4.506, P = 0.094). Additionally, patients with cytoplasmic NOTCH1 expression showed a borderline association with longer overall survival (OS) than those with nuclear NOTCH1 expression (P = 0.08). Our data suggest that the loss of nuclear NOTCH1 but not NUMB might be an independent predictor of malignancy in cervical cancer.
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AP-2α reverses vincristine-induced multidrug resistance of SGC7901 gastric cancer cells by inhibiting the Notch pathway. Apoptosis 2018; 22:933-941. [PMID: 28439677 DOI: 10.1007/s10495-017-1379-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Multidrug resistance (MDR) remains a major clinical obstacle in the treatment of gastric cancer (GC) since it causes tumor recurrence and metastasis. The transcription factor activator protein-2α (AP-2α) has been implicated in drug-resistance in breast cancer; however, its effects on MDR of gastric cancer are far from understood. In this study, we aimed to explore the effects of AP-2α on the MDR in gastric cancer cells selected by vincristine (VCR). Decreased AP-2α levels were markedly detected by RT-PCR and Western blot in gastric cancer cell lines (BGC-823, SGC-7901, AGS, MKN-45) compared with that in the gastric epithelial cell line (GES-1). Furthermore, we found that the expression of AP-2α in SGC7901/VCR or SGC7901/adriamycin (ADR) cells was lower than in SGC7901 cells. Thus, a vector overexpressing AP-2α was constructed and used to perform AP-2α gain-of-function studies in SGC7901/VCR cells. The decreased IC50 values of the anti-cancer drugs in sensitive and resistant cells after transfect with pcDNA3.1/AP-2α were determined in SGC7901/VCR cells by MTT assay. Moreover, flow cytometry analysis indicated that overexpressed AP-2α induced cell cycle arrest in the G0/G1 phase and promoted cell apoptosis of VCR-selected SGC7901/VCR cells. RT-PCR and Western blot demonstrated that overexpressed AP-2α can significantly induce the down-regulation of Notch1, Hes-1, P-gp and MRP1 in SGC7901/VCR cells. Similar effects can be observed when Numb (Notch inhibitor) was introduced. In addition, the intracellular ADR accumulation was markedly detected in AP-2α overexpressed or Numb cells. In conclusion, our results indicate that AP-2α can reverse the MDR of gastric cancer cells, which may be realized by inhibiting the Notch signaling pathway.
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29
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Sun L, He Q, Tsai C, Lei J, Chen J, Vienna Makcey L, Coy DH. HDAC inhibitors suppressed small cell lung cancer cell growth and enhanced the suppressive effects of receptor-targeting cytotoxins via upregulating somatostatin receptor II. Am J Transl Res 2018; 10:545-553. [PMID: 29511449 PMCID: PMC5835820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2017] [Accepted: 01/05/2018] [Indexed: 06/08/2023]
Abstract
Small cell lung cancer (SCLC) is a malignant human cancer and patients have very limited benefit from traditional anticancer treatments, with a poor five-year survival rate being 10% less. In present study, we observed that Notch signalling activation induced SCLC cell growth suppression via overexpressing Notch active fragments (ICN1, ICN2, ICN3 and ICN4), implying its tumor suppressive role. The histone deacetylase (HDAC) inhibitors also displayed their suppressive effects. Valproic acid (VPA) as a HDAC inhibitor was found to suppress SCLC cell growth and cell cycle arrest at phase G1, and observed to decrease HDAC4 and increase acetylation of histone H4 (AcH4) while activating Notch signalling with an increase of Notch1, Notch target gene HES1 and p21. Meanwhile, we also observed that VPA greatly stimulated the expression of somatostatin receptor type II (SSTR2) that is usually overexpressed in many cancer cells and is used as a target for anticancer drug development, providing a combination therapy with VPA and the SSTR2-targeting cytotoxins. Thus, VPA was investigated in combination with SSTR2-targeted cytotoxins captothecine-somatostatin conjugate (CPT-SST) and colchicine-somatostatin conjugate (COL-SST). Our assays showed that these combination treatments strongly led to a greater suppression as compared to each alone. In conclusion, we found that VPA suppressed SCLC cell growth and increased the expression of SSTR2. These may provide a novel clinical opportunity for enhanced anticancer therapy using the combination strategy of Notch signalling regulator and SSTR2-targeting cytotoxins in SCLC treatments.
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Affiliation(s)
- Lichun Sun
- The Third Xiangya Hospital of Central South UniversityChangsha, China
- Department of Medicine, School of Medicine, Tulane Health Sciences CenterNew Orleans, LA 70112-2699, USA
- Shenzhen Tyercan Bio-pharm Co., Ltd.Shenzhen, China
| | - Quanyong He
- The Third Xiangya Hospital of Central South UniversityChangsha, China
| | - Cheguo Tsai
- Department of Medicine, School of Medicine, Tulane Health Sciences CenterNew Orleans, LA 70112-2699, USA
| | - Jun Lei
- The Third Xiangya Hospital of Central South UniversityChangsha, China
| | - Jing Chen
- Business School, Hunan UniversityChangsha 410012, China
| | - Lily Vienna Makcey
- Department of Medicine, School of Medicine, Tulane Health Sciences CenterNew Orleans, LA 70112-2699, USA
| | - David H Coy
- Department of Medicine, School of Medicine, Tulane Health Sciences CenterNew Orleans, LA 70112-2699, USA
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Liu XL, Wang G, Song W, Yang WX, Hua J, Lyu L. microRNA-137 promotes endothelial progenitor cell proliferation and angiogenesis in cerebral ischemic stroke mice by targeting NR4A2 through the Notch pathway. J Cell Physiol 2018; 233:5255-5266. [PMID: 29206299 DOI: 10.1002/jcp.26312] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Accepted: 12/03/2017] [Indexed: 01/12/2023]
Abstract
Cerebral ischemic stroke (CIS) is one of the common causes of death and disability worldwide. This study aims to investigate effect of miR-137 on endothelial progenitor cells and angiogenesis in CIS by targeting NR4A2 via the Notch pathway. Brain tissues were extracted from CIS and normal mice. Immunohistochemistry was used to determine positive rate of NR4A2 expression. Serum VEGF, Ang, HGF, and IκBα levels were determined by ELISA. RT-qPCR and Western blotting were used to determine expression of related factors. Endothelial progenitor cells in CIS mice were treated and grouped into blank, NC, miR-137 mimic, miR-137 inhibitor, siRNA-NR4A2, and miR-137 inhibitor + siRNA-NR4A2 groups, and cells in normal mice into normal group. Proliferation and apoptosis were determined by MTT and flow cytometry, respectively. NR4A2 protein expression was strongly positive in CIS mice, which showed higher serum levels of VEGF, Ang, and HGF but lower IκBα than normal mice. Compared with normal group, the rest groups (endothelial progenitor cells from CIS mice) showed decreased expressions of miR-137, Hes1, Hes5, and IκBα but elevated NR4A2, Notch, Jagged1, Hey-2, VEGF, Ang, and HGF, inhibited proliferation and enhanced apoptosis. Compared with blank and NC groups, the miR-137 mimic and siRNA-NR4A2 groups exhibited increased expression of miR-137, Hes1, Hes5, and IκBα, but decreased NR4A2, Notch, Jagged1, and Hey-2, with enhanced proliferation and attenuated apoptosis. The miR-137 inhibitor group reversed the conditions. miR-137 enhances the endothelial progenitor cell proliferation and angiogenesis in CIS mice by targeting NR4A2 through the Notch signaling pathway.
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Affiliation(s)
- Xing-Li Liu
- Department of Radiology, the First People's Hospital of Yunnan Province, Kunming, P.R. China.,Key Laboratory of Medical Imaging, Kunming University of Science and Technology, Kunming, P.R. China
| | - Gang Wang
- Department of Radiology, the First People's Hospital of Yunnan Province, Kunming, P.R. China.,Key Laboratory of Medical Imaging, Kunming University of Science and Technology, Kunming, P.R. China
| | - Wei Song
- Department of Radiology, the First People's Hospital of Yunnan Province, Kunming, P.R. China.,Key Laboratory of Medical Imaging, Kunming University of Science and Technology, Kunming, P.R. China
| | - Wei-Xin Yang
- Department of Radiology, the First People's Hospital of Yunnan Province, Kunming, P.R. China.,Key Laboratory of Medical Imaging, Kunming University of Science and Technology, Kunming, P.R. China
| | - Jian Hua
- Department of Radiology, the First People's Hospital of Yunnan Province, Kunming, P.R. China.,Key Laboratory of Medical Imaging, Kunming University of Science and Technology, Kunming, P.R. China
| | - Liang Lyu
- Department of Radiology, the First People's Hospital of Yunnan Province, Kunming, P.R. China.,Key Laboratory of Medical Imaging, Kunming University of Science and Technology, Kunming, P.R. China
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Lu H, Jiang J, Gao Y. The cloning and activity of human Hes1 gene promoter. Mol Med Rep 2017; 17:3164-3169. [PMID: 29257279 DOI: 10.3892/mmr.2017.8240] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Accepted: 09/15/2017] [Indexed: 11/06/2022] Open
Abstract
The aim of the current study was to obtain and analyze the activity of the human Hes1 gene promoter. The genomic DNA of human HeLa cell was used as template, polymerase chain reaction (PCR) was used to amplify the 5' end sequence of Hes1 gene and then the amplified segment was connected to pMD18‑T vector. Subsequently, double enzyme digestion was used for identification and the sequence was detected; the promoter with the correct sequence was inserted into pGL3‑Basic, and the sequence was identified by double enzyme digestion. The recombinant DNA with correct sequence was transiently transfected into cervical cancer cells, and the dual luciferase reporter gene assay system was used to detect the activity of the promoter. The results demonstrated that the human Hes1 gene promoter amplified by PCR was the same as that of the sequence in the gene bank, and the dual luciferase reporter gene assay system demonstrated that there was promoter activity in cervical cancer cells. In conclusion, the Hes1 luciferase reporter recombinant vector was successfully established and transfected into HeLa cells to verify that it has promoter activity, and the core area of the promoter has several tumor‑promoting and tumor suppressor genes. This provides a basis for understanding the regulatory mechanism of Hes1 transcription and translation.
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Affiliation(s)
- Hai Lu
- Department of Hepatobiliary Surgery II, Guangdong Provincial Research Center for Artificial Organ and Tissue Engineering, Guangzhou Clinical Research and Transformation Center for Artificial Liver, Institute of Regenerative Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510282, P.R. China
| | - Jinqun Jiang
- Clinical Laboratory, Yuebei People's Hospital, Shaoguan, Guangdong 512026, P.R. China
| | - Yi Gao
- Department of Hepatobiliary Surgery II, Guangdong Provincial Research Center for Artificial Organ and Tissue Engineering, Guangzhou Clinical Research and Transformation Center for Artificial Liver, Institute of Regenerative Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510282, P.R. China
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Zhu B, Sun L, Luo W, Li M, Coy DH, Yu L, Yu W. Activated Notch signaling augments cell growth in hepatocellular carcinoma via up-regulating the nuclear receptor NR4A2. Oncotarget 2017; 8:23289-23302. [PMID: 28423575 PMCID: PMC5410304 DOI: 10.18632/oncotarget.15576] [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: 11/02/2016] [Accepted: 02/13/2017] [Indexed: 12/11/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is one of the most malignant cancers. Conventional therapies are limited due to the human liver being such a unique organ and easily showing side-effects. The unclear molecular mechanisms are tough challenges for scientists searching for new and effective anti-HCC targeting drugs. We identified that the nuclear receptor NR4A2 is a novel oncogene in HCC progression. In this study, we show that NR4A2 and the notch recceptor Notch1 were expressed highly in primary HCC tissues and immortal HCC cells by using qPCR, western blot and immuno-histochemistry assays. Both genes were observed to stimulate HCC cell proliferation, anti-apoptosis and cell cycle arrest by using cell proliferation assays and FACS assays. We also observed that the four notch receptor subtypes (Notch1-4) displayed different effects on HCC cell growth. The over-expression of Notch1 by transiently transfecting the intracellular domain of Notch1 (ICN1, Notch1 active form) increased the expression of NR4A2, with the knockdown of Notch1 decreasing NR4A2. This indicates that NR4A2 is one of the Notch-mediated downstream genes. Moreover, both NR4A2 and Notch1 suppressed the expression of tumor suppressors p21 and p63. These findings support that Notch1/NR4A2 co-regulate HCC cell functions by playing oncogenic roles and regulating the associated downstream signaling pathways. Novel Notch1/NR4A2-mediated oncogenic signaling may provide us a great opportunity for anti-HCC drug development.
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Affiliation(s)
- Bo Zhu
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai 200433, China
| | - Lichun Sun
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai 200433, China.,Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Institute of Pharmacy and Pharmacology, University of South China, Hengyang 421001, China.,Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China.,Department of Medicine, School of Medicine, Tulane Health Sciences Center, New Orleans, LA 70112-2699, USA
| | - Wei Luo
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Min Li
- Department of Medicine, School of Medicine, Tulane Health Sciences Center, New Orleans, LA 70112-2699, USA.,Department of Radiation Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - David H Coy
- Department of Medicine, School of Medicine, Tulane Health Sciences Center, New Orleans, LA 70112-2699, USA
| | - Long Yu
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai 200433, China
| | - Wenbo Yu
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai 200433, China
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Wu H, Chen J, Li D, Liu X, Li L, Wang K. MicroRNA-30e Functions as a Tumor Suppressor in Cervical Carcinoma Cells through Targeting GALNT7. Transl Oncol 2017; 10:876-885. [PMID: 28926745 PMCID: PMC5622994 DOI: 10.1016/j.tranon.2017.08.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Revised: 08/13/2017] [Accepted: 08/18/2017] [Indexed: 12/17/2022] Open
Abstract
Cervical cancer is the third most common cancer in women worldwide. However, the underlying mechanism of occurrence and development of cervical cancer is obscure. In this study, we observed that miR-30e was downregulated in clinical cervical cancer tissues and cervical cancer cells. Next, overexpression of miR-30e reduced the cervical cancer cell growth through MTT, colony formation, EdU, and Transwell assay in SiHa and Caski cells. Subsequently, UDP-N-acetyl-D-galactosamine: polypeptide N-acetylgalactosaminyltransferase 7 (GALNT7) was identified as a potential miR-30e target by bioinformatics analysis. Moreover, we showed that miR-30e was able to bind to the 3′UTR of GALNT7 by luciferase reporter assay. In addition, the mRNA and protein levels of GALNT7 in cervical cancer cells were downregulated by miR-30e. And we validated that downregulation of GALNT7 repressed the proliferation of SiHa and Caski cells by MTT, colony formation, and Transwell assay. We identified that the restoration of GALNT7 expression was able to counteract the effect of miR-30e on cell proliferation of cervical cancer cells. Furthermore, we found that the expression levels of GALNT7 were frequently upregulated and negatively correlative to those of miR-30e in cervical cancer tissues. In addition, we validated that restoration of GALNT7 rescued the miR-30e–suppressed growth of cervical cancer xenografts in vivo. In conclusion, the current results suggest that miR-30e may function as tumor suppressors in cervical cancer through downregulation of GALNT7. Both miR-30e and its novel target, GALNT7, may play an important role in the process of cervical cancer.
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Affiliation(s)
- Huijuan Wu
- Department of Gynecological Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center of Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, 300060, PR China
| | - Jun Chen
- Department of Gynaecology and Obstetrics of Affiliated Hospital of Logistics University of PAP, Tianjin, 300162, PR China
| | - Dan Li
- Department of Gynecological Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center of Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, 300060, PR China
| | - Xiangyu Liu
- Department of Gynecological Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center of Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, 300060, PR China
| | - Lei Li
- Department of Gynecological Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center of Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, 300060, PR China
| | - Ke Wang
- Department of Gynecological Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center of Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, 300060, PR China.
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Zhu B, Chen S, Hu X, Jin X, Le Y, Cao L, Yuan Z, Lin Z, Jiang S, Sun L, Yu L. Knockout of the Nogo-B Gene Attenuates Tumor Growth and Metastasis in Hepatocellular Carcinoma. Neoplasia 2017; 19:583-593. [PMID: 28628795 PMCID: PMC5476975 DOI: 10.1016/j.neo.2017.02.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2016] [Revised: 02/10/2017] [Accepted: 02/15/2017] [Indexed: 01/05/2023]
Abstract
Human hepatocellular carcinoma (HCC) is a malignant cancer. It is a challenge to develop anti-HCC drugs due to HCC's extreme aggressiveness and with the sensitivity of the liver to show severe adverse effects. More importantly, the precise mechanisms causing HCC pathogenicity are not known. Our previous study disclosed Nogo-B as a reticulon 4 (Rtn4) family member. In the present study, we first identified that Nogo-B played a critical role in HCC progression. We found, via in vitro and in vivo assays, that Nogo-B was expressed aberrantly in primary HCC tumor tissues and immortal HCC cells but was relatively scarce in the normal liver tissues or cells. Nogo-B knockout, via the CRISPR-Cas9 technique, resulted in significant suppression of HCC cell proliferation and tumor growth. Next-generation sequencing analysis showed that Nogo-B knockout have effects on interleukin-6 (IL-6) signaling pathway. Furthermore, we observed that IL-6 induced phosphorylation of STAT3 (pSTAT3) in wild-type HCC cells, but Nogo-B knockout could reduce IL-6-induced increase of pSTAT3, supporting that Nogo-B affects HCC tumor progression possibly via regulating the IL-6/STAT3 signaling pathway. In conclusion, Nogo-B is expressed aberrantly in HCCs and plays an oncogenic role. These findings support that Nogo-B may be a novel anti-HCC therapeutic target.
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Affiliation(s)
- Bo Zhu
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, 2005 Songhu Road, Shanghai 200433, China
| | - Shaobo Chen
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, 2005 Songhu Road, Shanghai 200433, China
| | - Xiaoding Hu
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, 2005 Songhu Road, Shanghai 200433, China
| | - Xiaofeng Jin
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, 2005 Songhu Road, Shanghai 200433, China
| | - Yichen Le
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, 2005 Songhu Road, Shanghai 200433, China
| | - Lihuan Cao
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, 2005 Songhu Road, Shanghai 200433, China
| | - Zhonghua Yuan
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Human, University of South China, Hengyang 421001, China
| | - Zhen Lin
- Department of pathology, School of Medicine, Tulane Health Sciences Center, New Orleans, LA 70112-2699, USA
| | - Songmin Jiang
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, 2005 Songhu Road, Shanghai 200433, China.
| | - Lichun Sun
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, 2005 Songhu Road, Shanghai 200433, China; Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Institute of Pharmacy & Pharmacology, University of South China, Hengyang 421001, China; Department of Medicine, School of Medicine, Tulane Health Sciences Center, New Orleans, LA 70112-2699, USA.
| | - Long Yu
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, 2005 Songhu Road, Shanghai 200433, China.
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Guo M, Zhao X, Yuan X, Jiang J, Li P. MiR-let-7a inhibits cell proliferation, migration, and invasion by down-regulating PKM2 in cervical cancer. Oncotarget 2017; 8:28226-28236. [PMID: 28415668 PMCID: PMC5438645 DOI: 10.18632/oncotarget.15999] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Accepted: 02/28/2017] [Indexed: 12/16/2022] Open
Abstract
In recent decades, miRNA has been reported as a crucial modulator in some biology progressions. This work aims to assess the expression and role of miR-let-7a and pyruvate kinase muscle isozyme M2 (PKM2) in CC tissues and cell lines. Here, we identified that miR-let-7a expression was decreased in CC tissues, and SiHa and HeLa cells (all P < 0.001), however, PKM2 expression was increased in these samples. Statistically, miR-let-7a was inversely associated with PKM2 mRNA or protein (p = 0.013, p = 0.015, respectively). In-vitro assays revealed that ectopic miR-let-7a expression repressed SiHa and HeLa cell proliferation, migration and invasion, and enhanced SiHa and HeLa cell apoptosis. Furthermore, luciferase reporter assays revealed the 3'-UTR of PKM2 was identified a target of miR-let-7a, by which miR-let-7a affected the expression of PKM2 in SiHa and HeLa cells. Besides, PKM2 plasmids partially abrogated the inhibitory effects of miR-let-7a, while si-PKM2 enhanced the inhibitory effects of miR-let-7a. In vivo, miR-let-7a mimics indeed repressed tumor growth in mice xenograft model. In conclusion, our results demonstrated that miR-let-7a inhibits cell proliferation, migration and invasion by down-regulation of PKM2 in cervical cancer. miR-let-7a/PKM2 pathway may be a useful therapeutic target for CC patients.
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Affiliation(s)
- Man Guo
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, P.R. China
| | - Xinying Zhao
- Department of Blood Dialysis, Heilongjiang Agricultural Reclamation Bureau General Hospital, Harbin, Heilongjiang, P.R. China
| | - Xiaolei Yuan
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, P.R. China
| | - Jing Jiang
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, P.R. China
| | - Peiling Li
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, P.R. China
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Li Y, Li G, Wang K, Xie YY, Zhou RP, Meng Y, Ding R, Ge JF, Chen FH. Autophagy contributes to 4-Amino-2-Trifluoromethyl-Phenyl Retinate-induced differentiation in human acute promyelocytic leukemia NB4 cells. Toxicol Appl Pharmacol 2017; 319:1-11. [PMID: 28130038 DOI: 10.1016/j.taap.2017.01.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2016] [Revised: 01/22/2017] [Accepted: 01/23/2017] [Indexed: 12/18/2022]
Abstract
As a classic differentiation agent, all-trans retinoic acid (ATRA) has been widely used in treatment of acute promyelocytic leukemia (APL). However, clinical application of ATRA has limitations. Our previous studies suggested that 4-Amino-2-Trifluoromethyl-Phenyl Retinate (ATPR), a novel all-trans retinoic acid (ATRA) derivative designed and synthesized by our team, could induce differentiation of APL cells in vivo and in vitro. To explore the underlying mechanism of ATPR, the effect of ATPR on autophagy of APL cells was observed in the present study. The results showed that the differentiation effect of ATPR on APL cells was accompanied with autophagy induction and PML-RARα degradation via activating Notch1 signaling pathway. Moreover, inhibition of autophagy using 3-methyladenine (3-MA) or small interfering RNA (siRNA) that targets essential autophagy gene ATG5 abrogated the ATPR-induced cell differentiation. Furthermore, when pretreated with DAPT, a γ-secretase inhibitor, the Notch1 signaling pathway was blocked in APL cells, followed by the reduction of ATPR-induced autophagy and differentiation. Taken together, these results suggested that autophagy play an important role in ATPR-induced cell differentiation, which may provide a novel approach to cure APL patients.
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Affiliation(s)
- Yue Li
- Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, Hefei, Anhui Province 230032, China
| | - Ge Li
- Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, Hefei, Anhui Province 230032, China
| | - Ke Wang
- Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, Hefei, Anhui Province 230032, China
| | - Ya-Ya Xie
- Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, Hefei, Anhui Province 230032, China
| | - Ren-Peng Zhou
- Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, Hefei, Anhui Province 230032, China
| | - Yao Meng
- Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, Hefei, Anhui Province 230032, China
| | - Ran Ding
- Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, Hefei, Anhui Province 230032, China
| | - Jin-Fang Ge
- Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, Hefei, Anhui Province 230032, China
| | - Fei-Hu Chen
- Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, Hefei, Anhui Province 230032, China.
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