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Zong S, Li X, Zhang G, Hu J, Li H, Guo Z, Zhao X, Chen J, Wang Y, Jing Z. Effect of luteolin on glioblastoma's immune microenvironment and tumor growth suppression. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 130:155611. [PMID: 38776737 DOI: 10.1016/j.phymed.2024.155611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 03/14/2024] [Accepted: 04/07/2024] [Indexed: 05/25/2024]
Abstract
BACKGROUND Glioblastoma is the most malignant and prevalent primary human brain tumor, and the immunological microenvironment controlled by glioma stem cells is one of the essential elements contributing to its malignancy. The use of medications to ameliorate the tumor microenvironment may give a new approach for glioma treatment. METHODS Glioma stem cells were separated from clinical patient-derived glioma samples for molecular research. Other studies, including CCK8, EdU, Transwell, and others, supported luteolin's ability to treat glioma progenitor cells. Network pharmacology and molecular docking models were used to study the drug target, and qRT-PCR, WB, and IF were used to evaluate the molecular mechanism. Intracranial xenografts were examined using HE and IHC, while macrophage polarization was examined using FC. RESULTS We originally discovered that luteolin inhibits glioma stem cells. IL6 released by glioma stem cells is blocked during medication action and inhibits glioma stem cell proliferation and invasion via the IL6/STAT3 signaling pathway. Additionally, luteolin inhibits the secretion of TGFβ1, affects the polarization function of macrophages in the microenvironment, inhibits the polarization of M2 macrophages in TAM, and further inhibits various functions of glioma stem cells by affecting the IL6/STAT3 signaling pathway, luteolin crosstalk TGFβ1/SMAD3 signaling pathway, and so on. CONCLUSIONS Through the suppression of the immunological microenvironment and inhibition of the IL6/STAT3 signaling pathway, our study determined the inhibitory effect of luteolin on glioma stem cells. This medication's dual inhibitory action, which has a significant negative impact on the glioma stem cells' malignant process, makes it both a viable anti-glioma medication and a candidate for targeted glioma microenvironment therapy.
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Affiliation(s)
- Shengliang Zong
- Department of Neurosurgery, The First Hospital of China Medical University, No. 155 North Nanjing Street, Heping District, Shenyang, Liaoning Province 110001, China
| | - Xinqiao Li
- Department of Neurosurgery, The First Hospital of China Medical University, No. 155 North Nanjing Street, Heping District, Shenyang, Liaoning Province 110001, China
| | - Guoqing Zhang
- Department of Neurosurgery, The First Hospital of China Medical University, No. 155 North Nanjing Street, Heping District, Shenyang, Liaoning Province 110001, China
| | - Jinpeng Hu
- Department of Neurosurgery, The First Hospital of China Medical University, No. 155 North Nanjing Street, Heping District, Shenyang, Liaoning Province 110001, China
| | - Hao Li
- Department of Neurosurgery, The First Hospital of China Medical University, No. 155 North Nanjing Street, Heping District, Shenyang, Liaoning Province 110001, China
| | - Zhengting Guo
- Department of Neurosurgery, The First Hospital of China Medical University, No. 155 North Nanjing Street, Heping District, Shenyang, Liaoning Province 110001, China
| | - Xiang Zhao
- Department of Neurosurgery, The First Hospital of China Medical University, No. 155 North Nanjing Street, Heping District, Shenyang, Liaoning Province 110001, China
| | - Junhua Chen
- Department of Neurosurgery, The First Hospital of China Medical University, No. 155 North Nanjing Street, Heping District, Shenyang, Liaoning Province 110001, China
| | - Yongfeng Wang
- Department of Radiology, The First Hospital of China Medical University, No.155, Nanjing North Street, Heping District, Shenyang, Liaoning Province 110001, China.
| | - Zhitao Jing
- Department of Neurosurgery, The First Hospital of China Medical University, No. 155 North Nanjing Street, Heping District, Shenyang, Liaoning Province 110001, China.
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Zhao Y, Zhang X, Wang J, Li Y, Wu Y, Liu J. Long Non-Coding RNA ZSCAN16-AS1 Promotes the Malignant Progression of Melanoma Through Regulating the miR-503-5p/ARL2 Axis. Clin Cosmet Investig Dermatol 2023; 16:1821-1831. [PMID: 37483470 PMCID: PMC10361287 DOI: 10.2147/ccid.s407323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Accepted: 06/16/2023] [Indexed: 07/25/2023]
Abstract
Background LncRNA zinc finger and SCAN domain containing 16 antisense RNA 1 (ZSCAN16-AS1), a newly identified lncRNA, has been proven to accelerate hepatocellular carcinoma progression. However, the function and molecular mechanism of ZSCAN16-AS1 in melanoma are still unknown. Methods The level of ZSCAN16-AS1 in melanoma tissues was detected and reported in The Cancer Genome Atlas (TCGA) and GEO#GSE15605. CCK-8, Transwell and flow cytometry assays were used to explore the role of ZSCAN16-AS1 in melanoma cells. Luciferase reporter assays and RNA pull-down assays were used to verify the molecular mechanism of ZSCAN16-AS1. Results Here, we found that ZSCAN16-AS1 expression was increased in melanoma. We confirmed that ZSCAN16-AS1 promotes the growth and metastasis of melanoma. ZSCAN16-AS1 exerts its pro-tumour role through sponging of miR-503-5p to liberate ADP-ribosylation factor-like protein 2 (ARL2) mRNA transcripts. Conclusion These results demonstrated the role and molecular mechanism of ZSCAN16-AS1 in the occurrence and development of melanoma. Therefore, ZSCAN16-AS1 may be used as a specific biomarker in the diagnosis and treatment of melanoma patients.
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Affiliation(s)
- Yuting Zhao
- Department of Plastic Surgery, the Third the People’s Hospital of Bengbu, Bengbu, Anhui, People’s Republic of China
| | - Xiangzhou Zhang
- Department of Plastic Surgery, the Third the People’s Hospital of Bengbu, Bengbu, Anhui, People’s Republic of China
| | - Jie Wang
- Department of Plastic Surgery, Affiliated People’s Hospital of Jiangsu University, Zhenjiang, Jiangsu, People’s Republic of China
| | - Yong Li
- Department of Plastic Surgery, the Third the People’s Hospital of Bengbu, Bengbu, Anhui, People’s Republic of China
| | - Yitong Wu
- Department of Plastic Surgery, the Third the People’s Hospital of Bengbu, Bengbu, Anhui, People’s Republic of China
| | - Jisong Liu
- Department of Plastic Surgery, the Third the People’s Hospital of Bengbu, Bengbu, Anhui, People’s Republic of China
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Tang Y, Zhou L, Liu L. Circ_0085616 contributes to the radio-resistance and progression of cervical cancer by targeting miR-541-3p/ARL2 signaling. Histol Histopathol 2023; 38:571-584. [PMID: 36300495 DOI: 10.14670/hh-18-541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
BACKGROUND Circular RNAs (circRNAs) play crucial regulatory roles in cancer progression and the development of radio-resistance. Here, we intended to explore the role of circ_0085616 in cervical cancer progression and its associated mechanism. METHODS Colony formation assay was employed to analyze the radio-resistance and proliferation of cervical cancer cells. Cell proliferation ability was also assessed by 5-ethynyl-2'-deoxyuridine (EdU) assay. Cell apoptosis was analyzed by flow cytometry. Tube formation assay was performed to analyze cell angiogenesis ability. Transwell assays were conducted to measure cell migration and invasion abilities. Dual-luciferase reporter assay was utilized to verify the target relationships. Xenograft mice model was used to analyze the role of circ_0085616 in tumor growth in vivo. RESULTS Circ_0085616 expression was elevated in cervical cancer tissues and cell lines. Circ_0085616 interference suppressed the radio-resistance, proliferation, tube formation, migration, and invasion and elevated the apoptosis rate of cervical cancer cells. Circ_0085616 acted as a sponge for microRNA-541-3p (miR-541-3p), and miR-541-3p was negatively regulated by circ_0085616 in cervical cancer cells. Circ_0085616 absence-induced changes in the behaviors of cervical cancer cells were largely overturned by anti-miR-541-3p. miR-541-3p negatively regulated ADP ribosylation factor like GTPase 2 (ARL2) expression by binding to its 3' untranslated region (3'UTR). miR-541-3p mimic-induced effects were largely reversed by pcDNA-ARL2 in cervical cancer cells. Circ_0085616 positively regulated ARL2 expression by sequestering miR-541-3p. Circ_0085616 absence significantly inhibited the tumor growth in vivo. CONCLUSION Circ_0085616 contributed to the radio-resistance and progression of cervical cancer partly through mediating the miR-541-3p/ARL2 axis.
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Affiliation(s)
- Yan Tang
- Department of Gynecology and Obstetrics, First Affiliated Hospital of Jinzhou Medical University, Jinzhou City, Liaoning Province, PR China
| | - Lei Zhou
- Allergy and Clinical Immunology Research Centre, First Affiliated Hospital of Jinzhou Medical University, Jinzhou City, Liaoning Province, PR China
| | - Lili Liu
- Department of Gynecology and Obstetrics, First Affiliated Hospital of Jinzhou Medical University, Jinzhou City, Liaoning Province, PR China.
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Ozair A, Bhat V, Alisch RS, Khosla AA, Kotecha RR, Odia Y, McDermott MW, Ahluwalia MS. DNA Methylation and Histone Modification in Low-Grade Gliomas: Current Understanding and Potential Clinical Targets. Cancers (Basel) 2023; 15:cancers15041342. [PMID: 36831683 PMCID: PMC9954183 DOI: 10.3390/cancers15041342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 02/02/2023] [Accepted: 02/14/2023] [Indexed: 02/22/2023] Open
Abstract
Gliomas, the most common type of malignant primary brain tumor, were conventionally classified through WHO Grades I-IV (now 1-4), with low-grade gliomas being entities belonging to Grades 1 or 2. While the focus of the WHO Classification for Central Nervous System (CNS) tumors had historically been on histopathological attributes, the recently released fifth edition of the classification (WHO CNS5) characterizes brain tumors, including gliomas, using an integration of histological and molecular features, including their epigenetic changes such as histone methylation, DNA methylation, and histone acetylation, which are increasingly being used for the classification of low-grade gliomas. This review describes the current understanding of the role of DNA methylation, demethylation, and histone modification in pathogenesis, clinical behavior, and outcomes of brain tumors, in particular of low-grade gliomas. The review also highlights potential diagnostic and/or therapeutic targets in associated cellular biomolecules, structures, and processes. Targeting of MGMT promoter methylation, TET-hTDG-BER pathway, association of G-CIMP with key gene mutations, PARP inhibition, IDH and 2-HG-associated processes, TERT mutation and ARL9-associated pathways, DNA Methyltransferase (DNMT) inhibition, Histone Deacetylase (HDAC) inhibition, BET inhibition, CpG site DNA methylation signatures, along with others, present exciting avenues for translational research. This review also summarizes the current clinical trial landscape associated with the therapeutic utility of epigenetics in low-grade gliomas. Much of the evidence currently remains restricted to preclinical studies, warranting further investigation to demonstrate true clinical utility.
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Affiliation(s)
- Ahmad Ozair
- Miami Cancer Institute, Baptist Health South Florida, Miami, FL 33176, USA
- Faculty of Medicine, King George’s Medical University, Lucknow 226003, India
| | - Vivek Bhat
- St. John’s Medical College, Bangalore 560034, India
| | - Reid S. Alisch
- Department of Neurosurgery, University of Wisconsin-Madison, Madison, WI 53792, USA
| | - Atulya A. Khosla
- Miami Cancer Institute, Baptist Health South Florida, Miami, FL 33176, USA
| | - Rupesh R. Kotecha
- Miami Cancer Institute, Baptist Health South Florida, Miami, FL 33176, USA
- Herbert Wertheim College of Medicine, Florida International University, Miami, FL 33199, USA
| | - Yazmin Odia
- Miami Cancer Institute, Baptist Health South Florida, Miami, FL 33176, USA
- Herbert Wertheim College of Medicine, Florida International University, Miami, FL 33199, USA
| | - Michael W. McDermott
- Herbert Wertheim College of Medicine, Florida International University, Miami, FL 33199, USA
- Miami Neuroscience Institute, Baptist Health South Florida, Miami, FL 33176, USA
- Correspondence: (M.W.M.); (M.S.A.)
| | - Manmeet S. Ahluwalia
- Miami Cancer Institute, Baptist Health South Florida, Miami, FL 33176, USA
- Miami Neuroscience Institute, Baptist Health South Florida, Miami, FL 33176, USA
- Correspondence: (M.W.M.); (M.S.A.)
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Jiang Y, Zhao J, Li R, Liu Y, Zhou L, Wang C, Lv C, Gao L, Cui D. CircLRFN5 inhibits the progression of glioblastoma via PRRX2/GCH1 mediated ferroptosis. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2022; 41:307. [PMID: 36266731 PMCID: PMC9583503 DOI: 10.1186/s13046-022-02518-8] [Citation(s) in RCA: 49] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Accepted: 10/12/2022] [Indexed: 11/05/2022]
Abstract
BACKGROUND Ferroptosis is a novel form of iron-dependent cell death and participates in the malignant progression of glioblastoma (GBM). Although circular RNAs (circRNAs) are found to play key roles in ferroptosis via several mechanisms, including regulating iron metabolism, glutathione metabolism, lipid peroxidation and mitochondrial-related proteins, there are many novel circRNAs regulating ferroptosis need to be found, and they may become a new molecular treatment target in GBM. METHODS The expression levels of circLRFN5, PRRX2 and GCH1 were detected by qPCR, western blotting, and immunohistochemistry. Lentiviral-based infections were used to overexpress or knockdown these molecules in glioma stem cells (GSCs). The biological functions of these molecules on GSCs were detected by MTS (3-(4, 5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H tetrazolium), the 5-ethynyl-20-deoxyuridine (EdU) incorporation assay, transwell, neurosphere formation assays, Extreme Limiting Dilution Analysis (ELDA) and xenograft experiments. The content of ferroptosis levels in GSCs was detected by BODIPY 581/591 C11 assay, glutathione (GSH) assay and malondialdehyde (MDA) assay. The regulating mechanisms among these molecules were studied by RNA immunoprecipitation assay, RNA pull-down assay, ubiquitination assay, dual-luciferase reporter assay and chromatin immunoprecipitation assay. RESULTS We found a novel circRNA circLRFN5 is downregulated in GBM and associated with GBM patients' poor prognosis. CircLRFN5 overexpression inhibits the cell viabilities, proliferation, neurospheres formation, stemness and tumorigenesis of GSCs via inducing ferroptosis. Mechanistically, circLRFN5 binds to PRRX2 protein and promotes its degradation via a ubiquitin-mediated proteasomal pathway. PRRX2 can transcriptionally upregulate GCH1 expression in GSCs, which is a ferroptosis suppressor via generating the antioxidant tetrahydrobiopterin (BH4). CONCLUSIONS Our study found circLRFN5 as a tumor-suppressive circRNA and identified its role in the progression of ferroptosis and GBM. CircLRFN5 can be used as a potential GBM biomarker and become a target for molecular therapies or ferroptosis-dependent therapy in GBM.
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Affiliation(s)
- Yang Jiang
- grid.24516.340000000123704535Department of Neurosurgery, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, 200072 China
| | - Junshuang Zhao
- grid.443573.20000 0004 1799 2448Department of Neurosurgery, Taihe Affiliated Hospital of Hubei University of Medicine, Shiyan, 442000 China
| | - Rongqing Li
- grid.24516.340000000123704535Department of Neurosurgery, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, 200072 China
| | - Yingliang Liu
- grid.24516.340000000123704535Department of Neurosurgery, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, 200072 China
| | - Lin Zhou
- grid.24516.340000000123704535Department of Neurosurgery, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, 200072 China
| | - Chengbin Wang
- grid.24516.340000000123704535Department of Neurosurgery, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, 200072 China
| | - Caihong Lv
- grid.24516.340000000123704535Department of Neurosurgery, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, 200072 China
| | - Liang Gao
- grid.24516.340000000123704535Department of Neurosurgery, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, 200072 China
| | - Daming Cui
- grid.24516.340000000123704535Department of Neurosurgery, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, 200072 China
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Jiang Y, Zhao J, Liu Y, Hu J, Gao L, Wang H, Cui D. CircKPNB1 mediates a positive feedback loop and promotes the malignant phenotypes of GSCs via TNF-α/NF-κB signaling. Cell Death Dis 2022; 13:697. [PMID: 35945192 PMCID: PMC9363451 DOI: 10.1038/s41419-022-05149-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 07/25/2022] [Accepted: 07/28/2022] [Indexed: 01/21/2023]
Abstract
Glioma stem cells (GSCs) are a special kind of cells in GBM showing tumor initiation, self-renewal, and multi-lineage differentiation abilities. Finding novel circRNAs related to GSCs is of great significance for the study of glioma. qPCR, western blotting, and immunohistochemistry were used to detect the expression levels of circKPNB1, SPI1, DGCR8, and TNF-α. The expression of these molecules in GSCs was regulated by lentiviral-based infection. RNA immunoprecipitation assay, RNA pull-down, dual-luciferase reporter, and chromatin immunoprecipitation assays were used to study the direct regulation mechanisms among these molecules. All the MTS, EDU, transwell, neurosphere formation assays, ELDA assays, and xenograft experiments were used to detect the malignant phenotype of GSCs. We found a novel circRNA circKPNB1 was overexpressed in GBM and associated with GBM patients' poor prognosis. CircKPNB1 overexpression can promote the cell viabilities, proliferation, invasion, neurospheres formation abilities, and stemness of GSCs. Mechanistically, circKPNB1 regulates the protein stability and nuclear translocation of SPI1. SPI1 promotes the malignant phenotype of GSCs via TNF-α mediated NF-κB signaling. SPI1 can also transcriptionally upregulate DGCR8 expression, and the latter can maintain the stability of circKPNB1 and forms a positive feedback loop among DGCR8, circKPNB1 and SPI1. Our study found circKPNB1 was a novel oncogene in GBM and of great significance in the diagnosis and prognosis prediction of GBM and maybe a novel target for molecular targeted therapy.
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Affiliation(s)
- Yang Jiang
- grid.24516.340000000123704535Department of Neurosurgery, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, 200072 China
| | - Junshuang Zhao
- grid.443573.20000 0004 1799 2448Department of Neurosurgery, Taihe Affiliated Hospital of Hubei University of Medicine, Shiyan, 442000 China
| | - Yingliang Liu
- grid.24516.340000000123704535Department of Neurosurgery, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, 200072 China
| | - Juntao Hu
- grid.443573.20000 0004 1799 2448Department of Neurosurgery, Taihe Affiliated Hospital of Hubei University of Medicine, Shiyan, 442000 China
| | - Liang Gao
- grid.24516.340000000123704535Department of Neurosurgery, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, 200072 China
| | - Hui Wang
- grid.443573.20000 0004 1799 2448Department of Neurosurgery, Taihe Affiliated Hospital of Hubei University of Medicine, Shiyan, 442000 China
| | - Daming Cui
- grid.24516.340000000123704535Department of Neurosurgery, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, 200072 China
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UPF1/circRPPH1/ATF3 feedback loop promotes the malignant phenotype and stemness of GSCs. Cell Death Dis 2022; 13:645. [PMID: 35871061 PMCID: PMC9308777 DOI: 10.1038/s41419-022-05102-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 07/13/2022] [Accepted: 07/13/2022] [Indexed: 01/21/2023]
Abstract
Glioblastoma multiforme (GBM) is the most lethal type of craniocerebral gliomas. Glioma stem cells (GSCs) are fundamental reasons for the malignancy and recurrence of GBM. Revealing the critical mechanism within GSCs' self-renewal ability is essential. Our study found a novel circular RNA (circRPPH1) that was up-regulated in GSCs and correlated with poor survival. The effect of circRPPH1 on the malignant phenotype and self-renewal of GSCs was detected in vitro and in vivo. Mechanistically, UPF1 can bind to circRPPH1 and maintain its stability. Therefore, more existing circRPPH1 can interact with transcription factor ATF3 to further transcribe UPF1 and Nestin expression. It formed a feedback loop to keep a stable stream for stemness biomarker Nestin to strengthen tumorigenesis of GSCs continually. Besides, ATF3 can activate the TGF-β signaling to drive GSCs for tumorigenesis. Knocking down the expression of circRPPH1 significantly inhibited the proliferation and clonogenicity of GSCs both in vitro and in vivo. The overexpression of circRPPH1 enhanced the self-renewal of GSCs. Our findings suggest that UPF1/circRPPH1/ATF3 maintains the potential self-renewal of GSCs through interacting with RNA-binding protein and activating the TGF-β signal pathway. Breaking the feedback loop against self-renewing GSCs may represent a novel therapeutic target in GBM treatment.
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Lee H, Choi S, Ha S, Yoon S, Kim WY. ARL2 is required for homologous recombination repair and colon cancer stem cell survival. FEBS Open Bio 2022; 12:1523-1533. [PMID: 35567502 PMCID: PMC9340879 DOI: 10.1002/2211-5463.13438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Revised: 04/16/2022] [Accepted: 05/12/2022] [Indexed: 11/10/2022] Open
Abstract
ARL2 regulates the dynamics of cytological components and is highly expressed in colon cancer tissues. Here, we report novel roles of ARL2 in the cell nucleus and colon cancer stem cells (CSCs). ARL2 is expressed at relatively low levels in K‐RAS active colon cancer cells, but its expression is induced in CSCs. Depletion of ARL2 results in M phase arrest exclusively in non‐CSC cultured cells; in addition, DNA break stress accumulates in CSCs leading to apoptosis. ARL2 expression is positively associated with the expression of all six RAD51 family genes, which are essential for homologous recombination repair (HRR). Furthermore, ARL2 is required for HRR and detected within chromatin compartments. These results demonstrate the requirement of ARL2 in colon CSC maintenance, which possibly occurs through mediating double‐strand break DNA repair in the nucleus.
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Affiliation(s)
- Hani Lee
- College of Pharmacy, Sookmyung Women's University, Cheongparo 47 gil, Yongsangu, Seoul, 04312, Korea
| | - SeokGyeong Choi
- College of Pharmacy, Sookmyung Women's University, Cheongparo 47 gil, Yongsangu, Seoul, 04312, Korea
| | - Sojung Ha
- College of Pharmacy, Sookmyung Women's University, Cheongparo 47 gil, Yongsangu, Seoul, 04312, Korea
| | - Sukjoon Yoon
- Department of Biological Sciences, Sookmyung Women's University, Cheongparo 47 gil, Yongsangu, Seoul, 04312, Korea
| | - Woo-Young Kim
- College of Pharmacy, Sookmyung Women's University, Cheongparo 47 gil, Yongsangu, Seoul, 04312, Korea.,Research Institute of Pharmacal Research, Sookmyung Women's University, Cheongparo 47 gil, Yongsangu, Seoul, 04312, Korea
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Brito C, Costa-Silva B, Barral DC, Pojo M. Unraveling the Relevance of ARL GTPases in Cutaneous Melanoma Prognosis through Integrated Bioinformatics Analysis. Int J Mol Sci 2021; 22:9260. [PMID: 34502169 PMCID: PMC8431576 DOI: 10.3390/ijms22179260] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 08/17/2021] [Accepted: 08/19/2021] [Indexed: 12/23/2022] Open
Abstract
Cutaneous melanoma (CM) is the deadliest skin cancer, whose molecular pathways underlying its malignancy remain unclear. Therefore, new information to guide evidence-based clinical decisions is required. Adenosine diphosphate (ADP)-ribosylation factor-like (ARL) proteins are membrane trafficking regulators whose biological relevance in CM is undetermined. Here, we investigated ARL expression and its impact on CM prognosis and immune microenvironment through integrated bioinformatics analysis. Our study found that all 22 ARLs are differentially expressed in CM. Specifically, ARL1 and ARL11 are upregulated and ARL15 is downregulated regardless of mutational frequency or copy number variations. According to TCGA data, ARL1 and ARL15 represent independent prognostic factors in CM as well as ARL11 based on GEPIA and OncoLnc. To investigate the mechanisms by which ARL1 and ARL11 increase patient survival while ARL15 reduces it, we evaluated their correlation with the immune microenvironment. CD4+ T cells and neutrophil infiltrates are significantly increased by ARL1 expression. Furthermore, ARL11 expression was correlated with 17 out of 21 immune infiltrates, including CD8+ T cells and M2 macrophages, described as having anti-tumoral activity. Likewise, ARL11 is interconnected with ZAP70, ADAM17, and P2RX7, which are implicated in immune cell activation. Collectively, this study provides the first evidence that ARL1, ARL11, and ARL15 may influence CM progression, prognosis, and immune microenvironment remodeling.
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Affiliation(s)
- Cheila Brito
- Unidade de Investigação em Patobiologia Molecular (UIPM) do Instituto Português de Oncologia de Lisboa Francisco Gentil E.P.E., Rua Prof. Lima Basto, 1099-023 Lisbon, Portugal;
| | - Bruno Costa-Silva
- Champalimaud Research, Champalimaud Centre for the Unknown, Avenida de Brasília, 1400-038 Lisbon, Portugal;
| | - Duarte C. Barral
- iNOVA4Health, CEDOC, NOVA Medical School, NMS, Universidade NOVA de Lisboa, 1169-056 Lisbon, Portugal;
| | - Marta Pojo
- Unidade de Investigação em Patobiologia Molecular (UIPM) do Instituto Português de Oncologia de Lisboa Francisco Gentil E.P.E., Rua Prof. Lima Basto, 1099-023 Lisbon, Portugal;
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10
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Cao C, He K, Li S, Ge Q, Liu L, Zhang Z, Zhang H, Wang X, Sun X, Ding L. ITPRIP promotes glioma progression by linking MYL9 to DAPK1 inhibition. Cell Signal 2021; 85:110062. [PMID: 34111521 DOI: 10.1016/j.cellsig.2021.110062] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 05/27/2021] [Accepted: 06/04/2021] [Indexed: 12/01/2022]
Abstract
Epigenetic gene silencing of the tumor suppressor death-associated protein kinase 1 (DAPK1) is implicated in the progression of malignant gliomas. However, the mechanism underlying the repression of DAPK1 in gliomas remains elusive. In this study, we identified the existence of DAPK1-inositol 1,4,5-trisphosphate receptor (IP3R)-interacting protein (ITPRIP) -myosin regulatory light polypeptide 9 (MYL9) complex in malignant glioma cells. Lentivirus co-infection and coimmunoprecipitation showed that ITPRIP bound with the death domain (DD) of DAPK1 in vitro. Further, dissociating ITPRIP-DAPK1 interaction inhibited glioma tumor growth in vitro but not in vivo. Moreover, knockdown of ITPRIP or DAPK1 impaired the ternary complex formation, whereas MYL9 knockdown did not affect ITPRIP-DAPK1 association. We further found that ITPRIP recruited MYL9 to the kinase domain (KD) of DAPK1, and in turn impeded the phosphorylation of MYL9. Accordingly, interference of ITPRIP enhanced the suppressive effects of DAPK1-KD on glioma progression both in vitro and in vivo. Our results demonstrate that ITPRIP plays a crucial role in the inhibition of DAPK1 and enhancement of tumorigenic properties of malignant glioma cells.
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Affiliation(s)
- Changchun Cao
- Department of Pharmacy, The Affiliated Huaian NO.1 People's Hospital of Nanjing Medical University, 1 Huanghe West Road, Huaian 223300, China.
| | - Kang He
- Department of Neurosurgery, The Affiliated Huaian NO.1 People's Hospital of Nanjing Medical University, 1 Huanghe West Road, Huaian 223300, China
| | - Shaoxun Li
- Department of Neurosurgery, The Affiliated Huaian NO.1 People's Hospital of Nanjing Medical University, 1 Huanghe West Road, Huaian 223300, China
| | - Qianqian Ge
- Department of Gynecology, The Affiliated Huaian NO.1 People's Hospital of Nanjing Medical University, 1 Huanghe West Road, Huaian 223300, China
| | - Lei Liu
- Department of Neurosurgery, The Affiliated Huaian NO.1 People's Hospital of Nanjing Medical University, 1 Huanghe West Road, Huaian 223300, China
| | - Zhengwei Zhang
- Department of Pathology, The Affiliated Huaian NO.1 People's Hospital of Nanjing Medical University, 1 Huanghe West Road, Huaian 223300, China
| | - Hui Zhang
- Department of Pathology, The Affiliated Huaian NO.1 People's Hospital of Nanjing Medical University, 1 Huanghe West Road, Huaian 223300, China
| | - Xinwen Wang
- Department of Pharmacy, The Affiliated Huaian NO.1 People's Hospital of Nanjing Medical University, 1 Huanghe West Road, Huaian 223300, China.
| | - Xiaoyang Sun
- Department of Neurosurgery, The Affiliated Huaian NO.1 People's Hospital of Nanjing Medical University, 1 Huanghe West Road, Huaian 223300, China.
| | - Lianshu Ding
- Department of Neurosurgery, The Affiliated Huaian NO.1 People's Hospital of Nanjing Medical University, 1 Huanghe West Road, Huaian 223300, China.
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11
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Identification of hub genes related to prognosis in glioma. Biosci Rep 2021; 40:224144. [PMID: 32406502 PMCID: PMC7253401 DOI: 10.1042/bsr20193377] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 04/28/2020] [Accepted: 05/13/2020] [Indexed: 01/20/2023] Open
Abstract
Glioma, a common malignant tumor of the central nervous system, has high invasiveness. The objective of the present study was to identify genes playing an important role in the development of glioma and to reveal their potential research value. Conjoint analysis on the GSE16011 dataset in the Gene Expression Omnibus (GEO) database and the 'Messenger RNA Expression Microarray of Diffuse Gliomas and Controls' dataset and 'RNA sequencing of Diffuse Gliomas' dataset in the Chinese Glioma Genome Atlas (CGGA) database is carried out in the study. The weighted correlation network analysis (WGCNA) was used to carry out co-expression analysis on the GSE16011. Finally, 24 genes significantly related to grade and prognosis were obtained. In addition, there is no report about CACNG2, JPH3, TUBB6 (tubulin β 6 class V), NRSN1, FAM19A2, NALCN, CDH18, GNAL on glioma.
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12
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Xie N, Bai Y, Qiao L, Bai Y, Wu J, Li Y, Jiang M, Xu B, Ni Z, Yuan T, Shi Y, Wu K, Xu F, Wang J, Dong L, Liu N. ARL4C might serve as a prognostic factor and a novel therapeutic target for gastric cancer: bioinformatics analyses and biological experiments. J Cell Mol Med 2021; 25:4014-4027. [PMID: 33724652 PMCID: PMC8051716 DOI: 10.1111/jcmm.16366] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 10/24/2020] [Accepted: 01/08/2021] [Indexed: 12/19/2022] Open
Abstract
The ADP‐ribosylation factor‐like proteins (ARLs) have been proved to regulate the malignant phenotypes of several cancers. However, the exact role of ARLs in gastric cancer (GC) remains elusive. In this study, we systematically investigate the expression status, interactive relations, potential pathways, genetic variations and clinical values of ARLs in GC. We find that ARLs are significantly dysregulated in GC and involved in various cancer‐related pathways. Subsequently, machine learning models identify ARL4C as one of the two most significant clinical indicators among ARLs for GC. Furthermore, ARL4C silencing remarkably inhibits the growth and metastasis of GC cells both in vitro and in vivo. Moreover, enrichment analysis indicates that ARL4C is highly correlated with TGF‐β1 signalling. Correspondingly, TGF‐β1 treatment dramatically increases ARL4C expression and ARL4C knockdown inhibits the phosphorylation level of Smads, downstream factors of TGF‐β1. Meanwhile, the coexpression of ARL4C and TGF‐β1 worsens the prognosis of GC patients. Our work comprehensively demonstrates the crucial role of ARLs in the carcinogenesis of GC and the specific mechanisms underlying the GC‐promoting effects of TGF‐β1. More importantly, we uncover the great promise of ARL4C‐targeted therapy in improving the efficacy of TGF‐β1 inhibitors for GC patients.
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Affiliation(s)
- Ning Xie
- Department of Gastroenterology, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Shaanxi Key Laboratory of Gastrointestinal Motility Disorders, Xi'an Jiaotong University, Xi'an, China
| | - Yunfan Bai
- Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, University of Tokyo, Kashiwa, Japan
| | - Lu Qiao
- Department of Gastroenterology, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Shaanxi Key Laboratory of Gastrointestinal Motility Disorders, Xi'an Jiaotong University, Xi'an, China
| | - Yuru Bai
- Department of Gastroenterology, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Shaanxi Key Laboratory of Gastrointestinal Motility Disorders, Xi'an Jiaotong University, Xi'an, China
| | - Jian Wu
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, the Fourth Military Medical University, Xi'an, China
| | - Yan Li
- Department of Gastroenterology, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Shaanxi Key Laboratory of Gastrointestinal Motility Disorders, Xi'an Jiaotong University, Xi'an, China
| | - Mingzuo Jiang
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, the Fourth Military Medical University, Xi'an, China
| | - Bing Xu
- Department of Gastroenterology, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Zhen Ni
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, the Fourth Military Medical University, Xi'an, China
| | - Ting Yuan
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, the Fourth Military Medical University, Xi'an, China
| | - Yongquan Shi
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, the Fourth Military Medical University, Xi'an, China
| | - Kaichun Wu
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, the Fourth Military Medical University, Xi'an, China
| | - Feng Xu
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, China.,Bioinspired Engineering and Biomechanics Center (BEBC), Xi'an Jiaotong University, Xi'an, China
| | - Jinhai Wang
- Department of Gastroenterology, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Shaanxi Key Laboratory of Gastrointestinal Motility Disorders, Xi'an Jiaotong University, Xi'an, China
| | - Lei Dong
- Department of Gastroenterology, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Shaanxi Key Laboratory of Gastrointestinal Motility Disorders, Xi'an Jiaotong University, Xi'an, China
| | - Na Liu
- Department of Gastroenterology, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Shaanxi Key Laboratory of Gastrointestinal Motility Disorders, Xi'an Jiaotong University, Xi'an, China
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13
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Pang X, Wang Y, Miao B, Fei S, Chen W. Regulation of ARL2 in colorectal cancer cell proliferation and tumorigenicity, and its negative association with AXL. Oncol Lett 2021; 21:196. [PMID: 33574935 PMCID: PMC7816291 DOI: 10.3892/ol.2021.12457] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 12/04/2020] [Indexed: 01/17/2023] Open
Abstract
Colorectal cancer (CRC) is the third most common malignant disease in adults. ADP ribosylation factor-like GTPase 2 (ARL2) is crucial for controlling the dynamics of microtubules and mitochondrial functions. However, the biological function of ARL2 in CRC remains unclear. The present study was performed to identify the expression level and functional role of ARL2 in CRC. A total of 19 CRC and 3 normal healthy colorectal tissues were collected. Furthermore, ARL2 expression was analyzed in healthy colorectal and CRC tissues by immunohistochemistry (IHC). ARL2 overexpression and knockdown was achieved using lentiviral vectors and plasmid transfection in HCT8 and HCT116 cells. The protein and mRNA expression levels of ARL2 and AXL were analyzed using western blot and reverse transcription-quantitative PCR in ARL2 knockdown and ARL2 overexpressing HCT8 and HCT116 cells. Cell Counting Kit-8, colony formation, wound healing, and Matrigel assays were used to investigate the biological functions of ARL2. Taken together, ARL2 protein expression level was upregulated in CRC tissues. Furthermore, ARL2 overexpression decreased proliferation and weakened the colony-formation abilities of the CRC cells, as well as their migratory and invasive abilities. ARL2 interference enhanced proliferation and colony-formation rates of the CRC cells, as well as their migratory and invasive abilities. ARL2 regulated CRC proliferation and tumorigenicity and was negatively associated with AXL. The results of the present study suggested that the proliferation, migration and tumorigenicity of the CRC cells could be inhibited by ARL2 overexpression. The latter may be used as a predicted and potential therapeutic target for CRC.
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Affiliation(s)
- Xunlei Pang
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215008, P.R. China.,Department of Gastroenterology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221004, P.R. China
| | - Yanhong Wang
- Department of Gastroenterology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221004, P.R. China
| | - Bei Miao
- Department of Gastroenterology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221004, P.R. China
| | - Sujuan Fei
- Department of Gastroenterology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221004, P.R. China
| | - Weichang Chen
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215008, P.R. China
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14
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Vandewalle V, Essaghir A, Bollaert E, Lenglez S, Graux C, Schoemans H, Saussoy P, Michaux L, Valk PJM, Demoulin JB, Havelange V. miR-15a-5p and miR-21-5p contribute to chemoresistance in cytogenetically normal acute myeloid leukaemia by targeting PDCD4, ARL2 and BTG2. J Cell Mol Med 2020; 25:575-585. [PMID: 33270982 PMCID: PMC7810923 DOI: 10.1111/jcmm.16110] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 10/23/2020] [Accepted: 10/26/2020] [Indexed: 12/15/2022] Open
Abstract
Cytarabine and daunorubicin are old drugs commonly used in the treatment of acute myeloid leukaemia (AML). Refractory or relapsed disease because of chemotherapy resistance is a major issue. microRNAs (miRNAs) were incriminated in resistance. This study aimed to identify miRNAs involved in chemoresistance in AML patients and to define their target genes. We focused on cytogenetically normal AML patients with wild‐type NPM1 without FLT3‐ITD as the treatment of this subset of patients with intermediate‐risk cytogenetics is not well established. We analysed baseline AML samples by small RNA sequencing and compared the profile of chemoresistant to chemosensitive AML patients. Among the miRNAs significantly overexpressed in chemoresistant patients, we revealed miR‐15a‐5p and miR‐21‐5p as miRNAs with a major role in chemoresistance in AML. We showed that miR‐15a‐5p and miR‐21‐5p overexpression decreased apoptosis induced by cytarabine and/or daunorubicin. PDCD4, ARL2 and BTG2 genes were found to be targeted by miR‐15a‐5p, as well as PDCD4 and BTG2 by miR‐21‐5p. Inhibition experiments of the three target genes reproduced the functional effect of both miRNAs on chemosensitivity. Our study demonstrates that miR‐15a‐5p and miR‐21‐5p are overexpressed in a subgroup of chemoresistant AML patients. Both miRNAs induce chemoresistance by targeting three pro‐apoptotic genes PDCD4, ARL2 and BTG2.
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Affiliation(s)
- Virginie Vandewalle
- Department of Hematology, Cliniques Universitaires Saint-Luc, Brussels, Belgium.,Experimental Medicine Unit, de Duve Institute, Université Catholique de Louvain, Brussels, Belgium
| | - Ahmed Essaghir
- Experimental Medicine Unit, de Duve Institute, Université Catholique de Louvain, Brussels, Belgium
| | - Emeline Bollaert
- Experimental Medicine Unit, de Duve Institute, Université Catholique de Louvain, Brussels, Belgium
| | - Sandrine Lenglez
- Experimental Medicine Unit, de Duve Institute, Université Catholique de Louvain, Brussels, Belgium
| | - Carlos Graux
- Department of Hematology, CHU UCL Namur (Godinne site), Yvoir, Belgium
| | - Hélène Schoemans
- Department of Hematology, University Hospitals Leuven and KU Leuven, Leuven, Belgium
| | - Pascale Saussoy
- Laboratory of Hematology, Cliniques Universitaires Saint Luc, Brussels, Belgium
| | - Lucienne Michaux
- Center for Human Genetics, University Hospitals Leuven and KU Leuven, Leuven, Belgium
| | - Peter J M Valk
- Department of Hematology, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Jean-Baptiste Demoulin
- Experimental Medicine Unit, de Duve Institute, Université Catholique de Louvain, Brussels, Belgium
| | - Violaine Havelange
- Department of Hematology, Cliniques Universitaires Saint-Luc, Brussels, Belgium.,Experimental Medicine Unit, de Duve Institute, Université Catholique de Louvain, Brussels, Belgium
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15
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Zhu J, Wang L, Zhou Y, Hao J, Wang S, Liu L, Li J. Comprehensive analysis of the relationship between competitive endogenous RNA (ceRNA) networks and tumor infiltrating-cells in hepatocellular carcinoma. J Gastrointest Oncol 2020; 11:1381-1398. [PMID: 33457008 DOI: 10.21037/jgo-20-555] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Background The innovation of immune checkpoint blockade (ICB) represents a promising shift in the treatment of advanced hepatocellular carcinoma (HCC). However, response to ICB has varied largely due to the high tumor heterogeneity and complex tumor microenvironment (TME). The competitive endogenous RNA (ceRNA) network also plays an important role in tumor occurrence and progression, but its relation with tumor-infiltrating immune cells (TICs) remains largely unexplored in HCC. The overriding objective of our study was thus to construct a prognosis-related risk model and to further evaluate the relationship between ceRNA networks and TICs. Methods Differentially expressed gene (DEG) analysis was performed to identify the differentially expressed RNAs. Lasso and multivariable Cox regression analyses were used to construct risk models, which were assessed by the area under the receiver operating characteristic curve (AUC of ROC) and Kaplan-Meier (K-M) curves. Then, a single-sample gene set enrichment analysis (ssGSEA) algorithm was adopted to dissect the TICs in HCC samples. Nomograms were constructed and calibration curves were used to verify the discrimination and accuracy of the nomograms. Finally, integration analysis was performed to validate the correlation of ceRNA and TICs. Results In the study, 7 differentially expressed RNAs [5 messenger RNA s (mRNAs) and 2 micro RNAs (miRNAs)] were incorporated to construct a ceRNA risk model. The AUC of the 1-, 3-, and 5-year overall survival (OS) were 0.784, 0.685, and 0.691 respectively. Likewise, 7 types TICs were in the TICs signature model and the AUC of the 1-, 3-, and 5-year OS were 0.706, 0.731, and 0.721 respectively. The integration analysis showed that 7 pairs of mRNA-TICs and 1 pair of miRNA-TICs had a close relation (all correlation coefficients >0.2, P<0.001). Conclusions Through constructing two risk models based on ceRNA network and TICs, we identified the hub RNAs and key TICs in the progression and prognosis of HCC, and further explored the relationship between ceRNA and TME. Importantly, targeting these hub RNAs may facilitate the remodeling of the TME and be a potential therapeutic alternative to enhancing the response to ICB, thus improving the prognosis of HCC patients.
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Affiliation(s)
- Jun Zhu
- State Key Laboratory of Cancer Biology, Institute of Digestive Diseases, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Liang Wang
- Department of Ophthalmology, Eye Institute of Chinese PLA, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Yifan Zhou
- Department of Basic Medicine, The Fourth Military Medical University, Xi'an, China
| | - Jun Hao
- Department of Experiment Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Shuai Wang
- State Key Laboratory of Cancer Biology, Institute of Digestive Diseases, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Lei Liu
- Department of Gastroenterology, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Jipeng Li
- State Key Laboratory of Cancer Biology, Institute of Digestive Diseases, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
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16
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Chen L, Zhang X, Wang S, Lin X, Xu L. Circ_0084927 Facilitates Cervical Cancer Development via Sponging miR-142-3p and Upregulating ARL2. Cancer Manag Res 2020; 12:9271-9283. [PMID: 33061617 PMCID: PMC7532307 DOI: 10.2147/cmar.s263596] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 08/15/2020] [Indexed: 12/24/2022] Open
Abstract
Background Cervical cancer is a fatal burden for women. Circular RNAs (circRNAs) are important regulators in cancer development. Our study aimed to investigate the function and action mechanism of a novel circRNA, circ_0084927, in cervical cancer. Methods The expression of circ_0084927, miR-142-3p and ADP-ribosylation factor-like protein 2 (ARL2) mRNA was measured by quantitative real-time polymerase chain reaction (qRT-PCR). For functional analyses, cell proliferation was assessed using cell counting kit-8 (CCK-8) assay. Cell cycle distribution was monitored by flow cytometry assay. Cell migration and cell invasion were evaluated by transwell assay. The interaction between miR-142-3p and circ_0084927 or ARL2 was predicted by the bioinformatics analysis and validated by dual-luciferase reporter assay and RNA immunoprecipitation assay (RIP) assay. The expression of ARL2 at the protein level was detected by Western blot. Animal tumor formation assay was performed to monitor the tumorigenicity of circ_0084927 in vivo. Results The expression of circ_0084927 and ARL2 was enhanced in cervical cancer tissues and cells, while the expression of miR-142-3p was opposite to them. Circ_0084927 knockdown significantly blocked cervical cancer cell proliferation, migration and invasion and induced cell cycle arrest. MiR-142-3p was targeted by circ_0084927, and miR-142-3p inhibition reversed the effects of circ_0084927 knockdown. Besides, miR-142-3p bound to ARL2, and the inhibitory effects of miR-142-3p restoration on cell proliferation, cycle, migration and invasion were counteracted by ARL2 overexpression. More importantly, circ_0084927 upregulated ARL2 expression by sponging miR-142-3p. Circ_0084927 knockdown retarded tumor growth in vivo by regulating miR-142-3p and ARL2. Conclusion Circ_0084927 accelerated the progression of cervical cancer partly by mediating the miR-142-3p/ARL2 axis.
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Affiliation(s)
- Liquan Chen
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510000, People's Republic of China
| | - Xiaowei Zhang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510000, People's Republic of China
| | - Su Wang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510000, People's Republic of China
| | - Xiaoting Lin
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510000, People's Republic of China
| | - Lizhen Xu
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510000, People's Republic of China
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17
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Sun B, Han Y, Cai H, Huang H, Xuan Y. Long non-coding RNA SNHG3, induced by IL-6/STAT3 transactivation, promotes stem cell-like properties of gastric cancer cells by regulating the miR-3619-5p/ARL2 axis. Cell Oncol (Dordr) 2020; 44:179-192. [PMID: 32930970 DOI: 10.1007/s13402-020-00560-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 08/31/2020] [Accepted: 09/04/2020] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Chemotherapy is, next to surgery and radiotherapy, the mainstay regimen for the clinical management of gastric cancer. This therapy is, however, heavily compromised by the acquisition of resistance. Here, we aimed to clarify the potential involvement of long non-coding RNA SNGH3 in the acquisition of cisplatin resistance and stemness in gastric cancer. METHODS Cell viability and proliferation were measured using Cell Counting Kit-8 and colony formation assays, respectively. Stem cell-like cell growth was evaluated using a mammosphere formation assay. RNA levels of SNHG2, OCT-4, SOX-2, CD44, miR-3619-5p and ARL2 were determined using qRT-PCR, whereas protein levels of OCT-4, SOX-2, CD44, ARL2, STAT3 and pSTAT3 were determined using Western blotting. Dual luciferase reporter assays were employed to interrogate regulatory interactions between STAT3, SNHG3, miR-3619-5p and ARL2, respectively. Direct binding of STAT3 to the SNHG3 promoter was investigated using a chromatin immunoprecipitation assay. RESULTS We found that IL-6 triggered stem cell-like properties in cisplatin-treated gastric cancer cells and activated STAT3, which in turn transcriptionally regulated SNHG3 expression. SNHG3 expression up-regulation positively correlated with cisplatin resistance and stemness of gastric cancer cells, while SNHG3 down-regulation inhibited stem cell-like properties. In addition, we found that SNHG3 up-regulated ARL2 expression through sponging miR-3619-5p, which predominantly mediated the oncogenic properties of SNHG3 in this disease. CONCLUSIONS Our data indicate an involvement of aberrant SNHG3 over-expression in the acquisition of both cisplatin resistance and stemness of gastric cancer cells, and of the IL-6/STAT3/SNHG3/miR-3619-5p/ARL2 signaling cascade in the oncogenic properties of SNHG3.
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Affiliation(s)
- Bo Sun
- Department of Gastric Surgery, Fudan University Shanghai Cancer Center, No. 270 Dongan Road, 200032, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, 200032, Shanghai, China
| | - Yang Han
- Department of Gastric Surgery, Fudan University Shanghai Cancer Center, No. 270 Dongan Road, 200032, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, 200032, Shanghai, China
| | - Hong Cai
- Department of Gastric Surgery, Fudan University Shanghai Cancer Center, No. 270 Dongan Road, 200032, Shanghai, China.
- Department of Oncology, Shanghai Medical College, Fudan University, 200032, Shanghai, China.
| | - Hua Huang
- Department of Gastric Surgery, Fudan University Shanghai Cancer Center, No. 270 Dongan Road, 200032, Shanghai, China.
- Department of Oncology, Shanghai Medical College, Fudan University, 200032, Shanghai, China.
| | - Yi Xuan
- Department of Gastric Surgery, Fudan University Shanghai Cancer Center, No. 270 Dongan Road, 200032, Shanghai, China.
- Department of Oncology, Shanghai Medical College, Fudan University, 200032, Shanghai, China.
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18
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Tan Y, Zhang S, Xiao Q, Wang J, Zhao K, Liu W, Huang K, Tian W, Niu H, Lei T, Shu K. Prognostic significance of ARL9 and its methylation in low-grade glioma. Genomics 2020; 112:4808-4816. [PMID: 32882327 PMCID: PMC7462573 DOI: 10.1016/j.ygeno.2020.08.035] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 08/19/2020] [Accepted: 08/27/2020] [Indexed: 12/11/2022]
Abstract
This study aimed to determine the value of ARL9 expression or methylation as a biomarker for LGG survival. We investigated the expression, methylation, prognosis and immune significance of ARL9 through bioinformatics analysis. ARL9 is negatively regulated by ARL9 methylation, leading to its low expression in LGG tissues. Both low ARL9 expression and hypermethylation predicted favorable OS and PFS in LGG patients, according to the TCGA database. Cox regression demonstrated that low ARL9 expression and ARL9 hypermethylation were independent biomarkers for OS. Moreover, three other glioma databases were utilized to verify the prognostic role of ARL9 in LGG, and the similar results were reached. A meta-analysis revealed that low ARL9 expression was closely relevant to better OS. Finally, ARL9 expression exhibited a close correlation with some immune cells, especially CD8+ T cells. ARL9 could constitute a promising prognostic biomarker, and probably plays an important role in immune cell infiltration in LGG. This is the first study to report the clinical and prognostic significance of ARL9, a methylation-driven gene,in LGG. Meta-analysis could be used for bioinformatics analysis to assess the overall effect of the gene from different datasets. ARL9 probably plays a role in the infiltration of immune cells, and acts as a promising prognostic marker in LGG patients.
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Affiliation(s)
- Yutang Tan
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Suojun Zhang
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Qungen Xiao
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Junwen Wang
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Kai Zhao
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Weihua Liu
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Kuan Huang
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Weidong Tian
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Department of Neurosurgery, First Affiliated Hospital of Medical College, Shihezi University, Xinjiang 832000, China
| | - Hongquan Niu
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Ting Lei
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Kai Shu
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
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19
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Wang J, Zuo J, Wang M, Xie W, Bai X, Ma X. Retraction: Receptor tyrosine kinase AXL is correlated with poor prognosis and induces temozolomide resistance in glioblastoma. CNS Neurosci Ther 2020; 26:777. [PMID: 31578804 PMCID: PMC7298975 DOI: 10.1111/cns.13227] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Retraction: Receptor tyrosine kinase AXL is correlated with poor prognosis and induces temozolomide resistance in glioblastoma, CNS Neuroscience & Therapeutics 2019, (https://doi.org/10.1111/cns.13227). The above article published online on 02 October 2019 in Wiley Online Library (wileyonlinelibrary.com), has been retracted by agreement between the authors, the journal Editor in Chief Jun Chen, and John Wiley & Sons Ltd. The retraction has been agreed due to unreliable data and consequently its misleading results and conclusions.
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Affiliation(s)
- Jia Wang
- Department of NeurosurgeryThe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
- Center of Brain ScienceThe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
| | - Jie Zuo
- The Second Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
| | - Mao‐De Wang
- Department of NeurosurgeryThe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
- Center of Brain ScienceThe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
| | - Wan‐Fu Xie
- Department of NeurosurgeryThe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
| | - Xiao‐Bin Bai
- Department of NeurosurgeryThe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
| | - Xu‐Dong Ma
- Department of NeurosurgeryThe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
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Casalou C, Ferreira A, Barral DC. The Role of ARF Family Proteins and Their Regulators and Effectors in Cancer Progression: A Therapeutic Perspective. Front Cell Dev Biol 2020; 8:217. [PMID: 32426352 PMCID: PMC7212444 DOI: 10.3389/fcell.2020.00217] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 03/12/2020] [Indexed: 12/13/2022] Open
Abstract
The Adenosine diphosphate-Ribosylation Factor (ARF) family belongs to the RAS superfamily of small GTPases and is involved in a wide variety of physiological processes, such as cell proliferation, motility and differentiation by regulating membrane traffic and associating with the cytoskeleton. Like other members of the RAS superfamily, ARF family proteins are activated by Guanine nucleotide Exchange Factors (GEFs) and inactivated by GTPase-Activating Proteins (GAPs). When active, they bind effectors, which mediate downstream functions. Several studies have reported that cancer cells are able to subvert membrane traffic regulators to enhance migration and invasion. Indeed, members of the ARF family, including ARF-Like (ARL) proteins have been implicated in tumorigenesis and progression of several types of cancer. Here, we review the role of ARF family members, their GEFs/GAPs and effectors in tumorigenesis and cancer progression, highlighting the ones that can have a pro-oncogenic behavior or function as tumor suppressors. Moreover, we propose possible mechanisms and approaches to target these proteins, toward the development of novel therapeutic strategies to impair tumor progression.
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Affiliation(s)
- Cristina Casalou
- CEDOC, NOVA Medical School, Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, Lisbon, Portugal
| | - Andreia Ferreira
- CEDOC, NOVA Medical School, Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, Lisbon, Portugal
| | - Duarte C Barral
- CEDOC, NOVA Medical School, Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, Lisbon, Portugal
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21
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Zhang J, Zhang Q, Sun C, Huang Y, Zhang J, Wang Q. Clinical relevance of ARF/ARL family genes and oncogenic function of ARL4C in endometrial cancer. Biomed Pharmacother 2020; 125:110000. [PMID: 32070877 DOI: 10.1016/j.biopha.2020.110000] [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: 01/06/2020] [Revised: 02/01/2020] [Accepted: 02/06/2020] [Indexed: 02/07/2023] Open
Abstract
Members of ADP-ribosylation factor (ARF)/ARF-like protein (ARL) family regulate malignant phenotype of cancer cells. The present study aims to investigate the clinical relevance of ARF/ARL family members in endometrial cancer. We report that several ARF/ARL family genes serve as prognostic biomarkers for endometrial cancer. Through a combination of TCGA database and immunohistochemistry analysis, we revealed that ARL4C, a member of ARL family, was overexpressed in endometrial cancer and might function as an oncogene in endometrial carcinogenesis. Gene set enrichment analysis (GSEA) and functional studies demonstrated that cell cycle and cell adhesion pathways were the potential mechanism of ARL4C in promoting endometrial cancer cell proliferation, migration and invasion. Moreover, we also observed the involvement of ARL4C in metformin-inhibited cellular proliferation of endometrial cancer. Collectively, knowledge of the expression and function of ARF/ARL family genes could provide a potential therapeutic strategy for endometrial cancer.
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Affiliation(s)
- Jiawen Zhang
- Department of Obstetrics and Gynecology, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Qinyi Zhang
- Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Cong Sun
- Department of Obstetrics and Gynecology, First Hospital of Zibo, Shandong, China
| | - Yanjuan Huang
- School of Pharmacy, Shanghai University of Medicine and Health Sciences, Shanghai, China
| | - Jing Zhang
- Department of Integrated Therapy, Shanghai Cancer Center, Fudan University, Shanghai, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.
| | - Qingying Wang
- Department of Obstetrics and Gynecology, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, China.
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22
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Wang Y, Zhao W, Liu X, Guan G, Zhuang M. ARL3 is downregulated and acts as a prognostic biomarker in glioma. J Transl Med 2019; 17:210. [PMID: 31234870 PMCID: PMC6591946 DOI: 10.1186/s12967-019-1914-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Accepted: 05/08/2019] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Glioma is the most common primary malignant brain tumor in adults with a poor prognosis. ARL3 is a member of the ARF family, and plays a key role in ciliary function and lipid-modified protein trafficking. ARL3 has been reported to be involved in ciliary diseases, in which it affects kidney and photoreceptor development. However, the functional role of ARL3 in cancer remains unknown. In this study, we aimed to explore ARL3 expression and its roles in glioma prognosis. METHODS RT-PCR and immunohistochemistry were performed to examine the expression level of ARL3 in glioma samples. Data from The Cancer Genome Atlas (TCGA), Chinese Glioma Genome Atlas (CGGA) and Repository for Molecular Brain Neoplasia Data (REMBRANDT) databases were employed to investigate ARL3 expression and its roles in glioma prognosis. A nomogram for predicting 3- or 5-year survival was established using Cox proportional hazards regression. Finally, gene ontology (GO) analysis, gene set enrichment analysis (GSEA), and gene set variation analysis (GSVA) were performed to explore the biological function. RESULTS ARL3 expression was downregulated in glioma, and associated with poor prognosis in glioma patients. The C-indexes, areas under the ROC curve and calibration plots of the nomogram indicated an effective predictive performance for glioma patients. In addition, GO and pathway analyses suggested the involvement of ARL3 in angiogenesis and immune cell infiltration in the microenvironment. CONCLUSIONS Low ARL3 expression predicted poor prognosis and contributed to antiangiogenesis and the proportion of infiltrating immune cells in the GBM microenvironment. Thus, ARL3 may be a prognostic marker and therapeutic target for glioma.
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Affiliation(s)
- Yulin Wang
- Department of Neurosurgery, The First Affiliated Hospital of Shantou University Medical College, 57 Changping Road, Shantou, 515041, Guangdong, China
| | - Weijiang Zhao
- Center for Neuroscience, Shantou University Medical College, Shantou, 515041, Guangdong, China
| | - Xin Liu
- Department of Stomatology, The First Affiliated Hospital of Shantou University Medical College, Shantou, 515041, Guangdong, China
| | - Gefei Guan
- Department of Neurosurgery, The First Hospital of China Medical University, Shenyang, 110001, Liaoning, China
| | - Minghua Zhuang
- Department of Neurosurgery, The First Affiliated Hospital of Shantou University Medical College, 57 Changping Road, Shantou, 515041, Guangdong, China.
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Jiang Y, Zhou J, Hou D, Luo P, Gao H, Ma Y, Chen YS, Li L, Zou D, Zhang H, Zhang Y, Jing Z. Prosaposin is a biomarker of mesenchymal glioblastoma and regulates mesenchymal transition through the TGF-β1/Smad signaling pathway. J Pathol 2019; 249:26-38. [PMID: 30953361 DOI: 10.1002/path.5278] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 03/21/2019] [Accepted: 04/04/2019] [Indexed: 12/15/2022]
Abstract
Mesenchymal glioblastoma (GBM) is the most aggressive subtype of GBM. Our previous study found that neurotrophic factor prosaposin (PSAP) is highly expressed and secreted in glioma and can promote the growth of glioma. The role of PSAP in mesenchymal GBM is still unclear. In this study, bioinformatic analysis, western blotting and RT-qPCR were used to detect the expression of PSAP in different GBM subtypes. Human glioma cell lines and patient-derived glioma stem cells were studied in vitro and in vivo, revealing that mesenchymal GBM expressed and secreted the highest level of PSAP among four subtypes of GBM, and PSAP could promote GBM invasion and epithelial-mesenchymal transition (EMT)-like processes in vivo and in vitro. Bioinformatic analysis and western blotting showed that PSAP mainly played a regulatory role in GBM invasion and EMT-like processes via the TGF-β1/Smad signaling pathway. In conclusion, the overexpression and secretion of PSAP may be an important factor causing the high invasiveness of mesenchymal GBM. PSAP is therefore a potential target for the treatment of mesenchymal GBM. © 2019 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
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Affiliation(s)
- Yang Jiang
- Department of Neurosurgery, The First Hospital of China Medical University, Shenyang City, PR China.,Department of Neurosurgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China
| | - Jinpeng Zhou
- Department of Neurosurgery, The First Hospital of China Medical University, Shenyang City, PR China
| | - Dianqi Hou
- Department of Neurosurgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China
| | - Peng Luo
- Department of Neurosurgery, The First Hospital of China Medical University, Shenyang City, PR China
| | - Huiling Gao
- College of Life and Health Sciences, Northeastern University, Shenyang, PR China
| | - Yanju Ma
- Department of Medical Oncology, Cancer Hospital of China Medical University, Shenyang, PR China
| | - Yin-Sheng Chen
- Department of Neurosurgery/Neuro-oncology, SunYat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine, Guangzhou, PR China
| | - Long Li
- Department of Neurosurgery, The First Hospital of China Medical University, Shenyang City, PR China
| | - Dan Zou
- The First laboratory of cancer institute, the First Hospital of China Medical University, Shenyang City, PR China
| | - Haiying Zhang
- International Education College, Liaoning University of Traditional Chinese Medicine, Shenyang City, PR China
| | - Ye Zhang
- The First laboratory of cancer institute, the First Hospital of China Medical University, Shenyang City, PR China
| | - Zhitao Jing
- Department of Neurosurgery, The First Hospital of China Medical University, Shenyang City, PR China
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Tong H, Zhao K, Zhang J, Zhu J, Xiao J. YB-1 modulates the drug resistance of glioma cells by activation of MDM2/p53 pathway. DRUG DESIGN DEVELOPMENT AND THERAPY 2019; 13:317-326. [PMID: 30679904 PMCID: PMC6338113 DOI: 10.2147/dddt.s185514] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Background Y-box-binding protein-1 (YB-1) is aberrantly expressed in a variety of cancers. However, the biological functional role of YB-1 in glioma is not yet clear. Methods The expression of MDM2 and YB-1 was analyzed by real time PCR. Overexpression and knockdown of YB-1 in glioma cells were created by transfection of pcDNA-YB-1 and siRNA against YB-1, respectively. Cell viability was performed by CCK8 assay. Results Our findings showed that glioma tissues had higher expressions of YB-1 than that in cancer-free tissues in 54 glioma patients, which were also positively correlated with Murine MDM2 expression. Overexpression of YB-1 or MDM2 renders a drug resistance feature in glioma cell exposed to temozolomide (TMZ), by directly targeting p53. Genetic or chemical inhibition of MDM2 significantly blocked YB-1-modulated response of glioma cells to TMZ. Moreover, inhibition of YB-1 or MDM2 reduced glioma cells metastasis and mortality in mice. Conclusion YB-1 facilitates the resistance of glioma cells to TMZ by direct activation of MDM2/p53 signaling and represents a promising molecular target for glioma treatment.
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Affiliation(s)
- Hui Tong
- Department of Neurosurgery, Linyi Central Hospital, Linyi, Shandong 276400, People's Republic of China
| | - Kai Zhao
- Department of Neurosurgery, The First Hospital of Qiqihar City, Qiqihar, Heilongjiang 161005, People's Republic of China,
| | - Jingyu Zhang
- Department of Internal Medicine, Jiangpu District Health Center of Huai'an, Huai'an, Jiangsu, 223001, People's Republic of China
| | - Jinxin Zhu
- Department of Neurosurgery, Lianshui County People's Hospital, Huai'an, Jiangsu 223400, People's Republic of China,
| | - Jianqi Xiao
- Department of Neurosurgery, The First Hospital of Qiqihar City, Qiqihar, Heilongjiang 161005, People's Republic of China,
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Jiang Y, Zhou J, Luo P, Gao H, Ma Y, Chen YS, Li L, Zou D, Zhang Y, Jing Z. Prosaposin promotes the proliferation and tumorigenesis of glioma through toll-like receptor 4 (TLR4)-mediated NF-κB signaling pathway. EBioMedicine 2018; 37:78-90. [PMID: 30385233 PMCID: PMC6286187 DOI: 10.1016/j.ebiom.2018.10.053] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 10/17/2018] [Accepted: 10/22/2018] [Indexed: 02/07/2023] Open
Abstract
Background As a neurotrophic factor, prosaposin (PSAP) can exert neuroprotective and neurotrophic effects. It is involved in the occurrence and development of prostate and breast cancer. However, there is no research about the role of PSAP in glioma. Methods The PSAP overexpressed or silenced glioma cells or glioma stem cells were established based on Lentiviral vector transfection. Cell viability assay, Edu assay, neurosphere formation assay and xenograft experiments were used to detect the proliferative ability. Western blot, Elisa and luciferase reporter assays were used to detect the possible mechanism. Findings Our study firstly found that PSAP was highly expressed and secreted in clinical glioma specimens, glioma stem cells, and glioma cell lines. It was associated with poor prognosis. We found that PSAP significantly promoted the proliferation of glioma stem cells and cell lines. Moreover, PSAP promoted tumorigenesis in subcutaneous and orthotopic models of this disease. Furthermore, GSEA and KEGG analysis predicted that PSAP acts through the TLR4 and NF-κB signaling pathways, which was confirmed by western blot, immunoprecipitation, immunofluorescence, and use of the TLR4-specific inhibitor TAK-242. Interpretation The findings of this study suggest that PSAP can promote glioma cell proliferation via the TLR4/NF-κB signaling pathway and may be an important target for glioma treatment. Fund This work was funded by National Natural Science Foundation of China (Nos. 81101917, 81270036, 81201802, 81673025), Program for Liaoning Excellent Talents in University (No. LR2014023), and Liaoning Province Natural Science Foundation (Nos. 20170541022, 20172250290). The funders did not play a role in manuscript design, data collection, data analysis, interpretation nor writing of the manuscript.
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Affiliation(s)
- Yang Jiang
- Department of Neurosurgery, The First Hospital of China Medical University, NO.155, North Nanjing Street, Heping District, Shenyang City 110001, China
| | - Jinpeng Zhou
- Department of Neurosurgery, The First Hospital of China Medical University, NO.155, North Nanjing Street, Heping District, Shenyang City 110001, China
| | - Peng Luo
- Department of Neurosurgery, The First Hospital of China Medical University, NO.155, North Nanjing Street, Heping District, Shenyang City 110001, China
| | - Huiling Gao
- College of Life and Health Sciences, Northeastern University, Shenyang, China
| | - Yanju Ma
- Department of Medical Oncology, Cancer Hospital of China Medical University, Shenyang 110042, China
| | - Yin-Sheng Chen
- Department of Neurosurgery/Neuro-oncology, SunYat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - Long Li
- Department of Neurosurgery, The First Hospital of China Medical University, NO.155, North Nanjing Street, Heping District, Shenyang City 110001, China
| | - Dan Zou
- The First laboratory of cancer institute, The First Hospital of China Medical University, NO.155, North Nanjing Street, Heping District, Shenyang City 110001, China
| | - Ye Zhang
- The First laboratory of cancer institute, The First Hospital of China Medical University, NO.155, North Nanjing Street, Heping District, Shenyang City 110001, China.
| | - Zhitao Jing
- Department of Neurosurgery, The First Hospital of China Medical University, NO.155, North Nanjing Street, Heping District, Shenyang City 110001, China.
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