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Cui P, Zhang Y, Wang C, Xiao B, Wang Q, Zhang L, Li H, Wu C, Tian W. Crucial role of lncRNA NONHSAG037054.2 and GABPA, and their related functional networks, in ankylosing spondylitis. Exp Ther Med 2024; 27:237. [PMID: 38628657 PMCID: PMC11019654 DOI: 10.3892/etm.2024.12525] [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: 09/09/2023] [Accepted: 02/09/2024] [Indexed: 04/19/2024] Open
Abstract
Long non-coding RNAs (lncRNAs) have been previously researched in ankylosing spondylitis (AS). Nevertheless, there are few studies of lncRNAs and mRNAs associated with the pathogenesis of AS. Differentially expressed lncRNAs (DElncRNAs) and mRNAs (DEmRNAs) between AS and normal samples were assessed using the R limma package. DOSE packages and 'clusterProfiler' were exploited for gene enrichment analysis. The functional association of proteins and protein interactions was assessed using the STRING database. To investigate the important genes and subnetworks in the protein-protein interaction network, the MCODE plug-in in the Cytoscape software was utilized. The gene mRNA was examined via reverse transcription-quantitative PCR. In total, 152 DEmRNAs and 204 DElncRNAs were observed between normal and AS samples. A total of 68 candidate genes related to DElncRNA were identified. These candidate genes were enriched in 30 cellular component terms, 22 molecular functions, 83 biological processes, 9 Kyoto Encyclopedia of Genes and Genomes, and 36 disease ontology pathways. NONHSAG037054.2 was the most related lncRNA to genes, and GABPA was the most connected gene to lncRNA in AS. The NCBI/GenBank accession number of the lncRNA NONHSAG037054.2 was not found because it is not included in NCBI. The information of lncRNA NONHSAG037054.2 can be found at the website (http://www.noncode.org/show_gene.php?id=NONHSAG037054 and https://www.genecards.org/cgi-bin/carddisp.pl?gene=ACAP2-IT1). In total, 13 microRNAs (miRNAs) and 46 miRNAs associated with NONHSAG037054.2 and GABPA, respectively, were found. A total of 173 RNA-binding protein genes were associated with both NONHSAG037054.2 and GABPA. In addition, GABPA was downregulated in AS samples, suggesting it may have diagnostic value in AS. In conclusion, NONHSAG037054.2 and GABPA are associated with AS. GABPA was downregulated in AS, and it could serve as a novel diagnostic factor for AS.
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Affiliation(s)
- Penglei Cui
- Department of Spine Surgery, Beijing Jishuitan Hospital, Capital Medical University, Beijing 100035, P.R. China
| | - Yanzhuo Zhang
- Department of Molecular Orthopaedics, Beijing Research Institute of Traumatology and Orthopaedics, Beijing Jishuitan Hospital, Capital Medical University, Beijing 100035, P.R. China
| | - Chao Wang
- Department of Molecular Orthopaedics, Beijing Research Institute of Traumatology and Orthopaedics, Beijing Jishuitan Hospital, Capital Medical University, Beijing 100035, P.R. China
| | - Bin Xiao
- Department of Spine Surgery, Beijing Jishuitan Hospital, Capital Medical University, Beijing 100035, P.R. China
| | - Qianqian Wang
- Department of Molecular Orthopaedics, Beijing Research Institute of Traumatology and Orthopaedics, Beijing Jishuitan Hospital, Capital Medical University, Beijing 100035, P.R. China
| | - Liang Zhang
- Department of Orthopaedics, Beijing Jishuitan Hospital, Capital Medical University, Beijing 100035, P.R. China
| | - Hongchao Li
- Department of Rheumatology and Immunology, Beijing Jishuitan Hospital, Capital Medical University, Beijing 100035, P.R. China
| | - Chengai Wu
- Department of Molecular Orthopaedics, Beijing Research Institute of Traumatology and Orthopaedics, Beijing Jishuitan Hospital, Capital Medical University, Beijing 100035, P.R. China
| | - Wei Tian
- Department of Spine Surgery, Beijing Jishuitan Hospital, Capital Medical University, Beijing 100035, P.R. China
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Deng Y, Lou T, Kong L, Liu C. Prohibitin2/PHB2, Transcriptionally Regulated by GABPA, Inhibits Cell Growth via PRKN/Parkin-dependent Mitophagy in Endometriosis. Reprod Sci 2023; 30:3629-3640. [PMID: 37587393 DOI: 10.1007/s43032-023-01316-7] [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: 02/15/2023] [Accepted: 07/28/2023] [Indexed: 08/18/2023]
Abstract
Endometriosis (EMS) is a common benign gynecological disease affecting women of reproductive age. It is characterized by abnormal growth of endometrial tissue outside the uterine cavity, resulting in chronic pelvic pain and infertility. Endometrial physiological and pathological processes are intimately connected to autophagy. Mitophagy is an essential selective mode that protects cells from metabolic stress and hypoxia. Mitochondrial autophagy mediated by prohibitin 2 (PHB2) is dependent on the PRKN/Parkin pathway and is involved in numerous human diseases. Uncertainty remains as to whether mitophagy regulation by PHB2 contributes to the occurrence and progression of EMS. This study aims to investigate the mechanism underlying the role of PHB2 in EMS. This study detected the protein and mRNA expression of PHB2 in ectopic and normal endometrial tissues of ovarian EMS, in addition to ectopic endometrial cell line 12Z and endometrial stromal cell line KC02-44D for gene overexpression or knockdown. Cell function experiments and mitochondrial function experiments were conducted to investigate the role of PHB2 in the endometrium. Bioinformatic analysis and experiments were also used to investigate the upstream transcription factors that influence PHB2 expression. PHB2 was downregulated in ectopic endometrium, and PHB2 overexpression inhibited cell proliferation, migration, and invasion and promoted apoptosis. The upregulation of mitophagy markers, including Parkin and LC3II/I, and the downregulation of autophagy degradation markers P62 and TOMM20 in EMS suggest that PHB2 may contribute to cell proliferation, migration, invasion, and apoptosis via PRKN/Parkin-mediated mitophagy. Analysis and validation of bioinformatics data revealed that the transcription factor GABPA binds directly to the PHB2 promoter region and controls the transcriptional expression of PHB2. This study investigated the role of PHB2 in the onset of EMS. It inhibits EMS growth via PRKN/Parkin-mediated mitophagy, and GABPA controls the transcriptional disorder of PHB2. This study's findings suggest a novel method for investigating the clinical potential of PHB2 in EMS.
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Affiliation(s)
- Yupeng Deng
- Department of Gynecology and Obstetrics, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, 100020, China
| | - Tong Lou
- Department of Gynecology and Obstetrics, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, 100020, China
| | - Lili Kong
- Beijing Rehabilitation Hospital, Capital Medical University, Beijing, 100144, China.
| | - Chongdong Liu
- Department of Gynecology and Obstetrics, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, 100020, China.
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Liu T, Li S, Xia C, Xu D. TERT promoter mutations and methylation for telomerase activation in urothelial carcinomas: New mechanistic insights and clinical significance. Front Immunol 2023; 13:1071390. [PMID: 36713366 PMCID: PMC9877314 DOI: 10.3389/fimmu.2022.1071390] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Accepted: 12/28/2022] [Indexed: 01/15/2023] Open
Abstract
Telomerase, an RNA-dependent DNA polymerase synthesizing telomeric TTAGGG sequences, is primarily silent in normal human urothelial cells (NHUCs), but widely activated in urothelial cell-derived carcinomas or urothelial carcinomas (UCs) including UC of the bladder (UCB) and upper track UC (UTUC). Telomerase activation for telomere maintenance is required for the UC development and progression, and the key underlying mechanism is the transcriptional de-repression of the telomerase reverse transcriptase (TERT), a gene encoding the rate-limiting, telomerase catalytic component. Recent mechanistic explorations have revealed important roles for TERT promoter mutations and aberrant methylation in activation of TERT transcription and telomerase in UCs. Moreover, these TERT-featured genomic and epigenetic alterations have been evaluated for their usefulness in non-invasive UC diagnostics, recurrence monitoring, outcome prediction and response to treatments such as immunotherapy. Importantly, the detection of the mutated TERT promoter and TERT mRNA as urinary biomarkers holds great promise for urine-based UC liquid biopsy. In the present article, we review recent mechanistic insights into altered TERT promoter-mediated telomerase activation in UCs and discuss potential clinical implications. Specifically, we compare differences in senescence and transformation between NHUCs and other types of epithelial cells, address the interaction between TERT promoter mutations and other factors to affect UC progression and outcomes, evaluate the impact of TERT promoter mutations and TERT-mediated activation of human endogenous retrovirus genes on UC immunotherapy including Bacillus Calmette-Guérin therapy and immune checkpoint inhibitors. Finally, we suggest the standardization of a TERT assay and evaluation system for UC clinical practice.
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Affiliation(s)
- Tiantian Liu
- Department of Pathology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Shihong Li
- Department of Pathology, Maternal and Child Health Hospital of Liaocheng, Liaocheng, China
| | - Chuanyou Xia
- Department of Urology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China,*Correspondence: Chuanyou Xia, ; Dawei Xu,
| | - Dawei Xu
- Department of Medicine, Bioclinicum and Center for Molecular Medicine (CMM), Karolinska Institutet and Karolinska University Hospital Solna, Stockholm, Sweden,*Correspondence: Chuanyou Xia, ; Dawei Xu,
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Ahmed SFM, Abdelrahman MM, Mohammed MH. Evaluation of Immunohistochemical Expression of Heparanase in Helicobacter pylori-Associated Chronic Gastritis. CLINICAL PATHOLOGY (THOUSAND OAKS, VENTURA COUNTY, CALIF.) 2023; 16:2632010X231188937. [PMID: 37534373 PMCID: PMC10392192 DOI: 10.1177/2632010x231188937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Accepted: 07/03/2023] [Indexed: 08/04/2023]
Abstract
Background Chronic gastritis (CG) is a very common disease. More than half of the worldwide population suffers from symptoms of CG. This disease has received great attention since the discovery of H. pylori as the most important cause of CG. Symptoms experienced by patients with CG are attributed to H. pylori-induced inflammatory reactions. Heparanase (HPSE) is a mammalian β-endoglucoronidase. In inflammation; HPSE degrades and remodels the extracellular matrix's heparan sulfate polysaccharide chains liberating heparan sulfate-bound cytokines and chemokines, HPSE also facilitates movement of inflammatory cells. Aims This study aimed to detect the function of HPSE in CG by correlating levels of HPSE expression with histopathological features of CG, including H. pylori infection, acute and chronic inflammatory cells, mucosal atrophic and/or metaplastic features. Methods Ninety-five upper endoscopic-guided gastric punch biopsies were enrolled in this study. From each specimen, formalin-fixed and paraffin-embedded tissue blocks were prepared. Tissue sections were stained by Hematoxylin and eosin, Giemsa, and anti-heparanase antibody. Results HPSE expression was statistically associated with H. pylori infection (P-value < .000), and intensity of chronic lymphocytic inflammatory infiltrate in the gastric mucosal tissues (P = .004). High levels of HPSE expression were also related to the presence of neutrophils in the gastric surface epithelium and lamina propria (P-value < .009). Conclusions HPSE expression was upregulated in H. pylori-associated chronic gastritis. Thus, future therapeutic agents that could specifically inhibit HPSE enzyme activity, may aid in the reduction of sequelae of H. pylori infection.
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Affiliation(s)
| | - Mona Mohammed Abdelrahman
- Tropical Medicine and Gastroenterology Department, Faculty of Medicine, Sohag University, Sohag, Egypt
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Dai Z, Luo H, Chen J, Li L. MiR-210-3p accelerates tumor-relevant cell functions of endometrial carcinoma by repressing RUNX1T1. Mutat Res 2022; 825:111793. [PMID: 35963185 DOI: 10.1016/j.mrfmmm.2022.111793] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 07/31/2022] [Accepted: 08/02/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Biological mechanism of miR-210-3p in endometrial carcinoma (EC) remains unclear. Here, our purpose is to study effects of miR-210-3p on malignant progression of EC. METHODS Bioinformatics analysis showed miRNA and mRNA are abnormally expressed in EC tissues. Quantitative real-time fluorescence polymerase chain reaction (qRT-PCR) was utilized to compare miR-210-3p mRNA level in EC cells and tissues. qRT-PCR and western blot were used to measure RUNX1T1 and NCAM1 at mRNA and protein levels, and western blot for p-AKT and AKT proteins related to PI3K/AKT signaling pathway. Furthermore, EC cell behaviors were assayed via Cell Counting Kit-8, cell colony formation assay, wound healing, transwell and flow cytometry experiments. Interaction between RUNX1T1 and miR-210-3p was verified through dual-luciferase assay. Immunohistochemistry was used to analyze RUNX1T1 expression in clinical samples RESULTS: MiR-210-3p was considerably upregulated and RUNX1T1 was significantly under-expressed in EC. Overexpression of miR-210-3p stimulated cell proliferation, migration, invasion, and restrained cell apoptosis in EC. Dual-luciferase assay proved that RUNX1T1 was a target gene of miR-210-3p. The level of RUNX1T1 in EC was downregulated after overexpressing miR-210-3p. Rescue assay showed that overexpression of RUNX1T1 had an inhibitory impact on tumor-relevant cell behaviors, whereas overexpression of miR-210-3p rescued such inhibition. Overexpression of RUNX1T1 reduced p-AKT expression, which was restored with concomitantly overexpressed miR-210-3p. CONCLUSION In general, miR-210-3p behaves as an oncogene in EC by down-regulating the expression of RUNX1T1. This study elucidates a new functional mechanism in EC, and indicates miR-210-3p an underlying target.
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Affiliation(s)
- Zhuoya Dai
- Department of Obstetrics and Gynecology, The People's Hospital of Bishan District, Bishan, Chongqing 402760, China
| | - Hongqin Luo
- Department of Obstetrics and Gynecology, The People's Hospital of Bishan District, Bishan, Chongqing 402760, China
| | - Jingdong Chen
- Department of Obstetrics and Gynecology, The People's Hospital of Bishan District, Bishan, Chongqing 402760, China
| | - Liang Li
- Department of Obstetrics and Gynecology, The People's Hospital of Bishan District, Bishan, Chongqing 402760, China.
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Fang Z, Zhang N, Yuan X, Xing X, Li X, Qin X, Liu Z, Neo S, Liu C, Kong F, Björkholm M, Fan Y, Xu D. GABPA-activated TGFBR2 transcription inhibits aggressiveness but is epigenetically erased by oncometabolites in renal cell carcinoma. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2022; 41:173. [PMID: 35549739 PMCID: PMC9097325 DOI: 10.1186/s13046-022-02382-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 05/04/2022] [Indexed: 01/20/2023]
Abstract
Background The ETS transcription factor GABPA has long been thought of as an oncogenic factor and recently suggested as a target for cancer therapy due to its critical effect on telomerase activation, but the role of GABPA in clear cell renal cell carcinoma (ccRCC) is unclear. In addition, ccRCC is characterized by metabolic reprograming with aberrant accumulation of L-2-hydroxyglurate (L-2HG), an oncometabolite that has been shown to promote ccRCC development and progression by inducing DNA methylation, however, its downstream effectors remain poorly defined. Methods siRNAs and expression vectors were used to manipulate the expression of GABPA and other factors and to determine cellular/molecular and phenotypic alterations. RNA sequencing and ChIP assays were performed to identify GABPA target genes. A human ccRCC xenograft model in mice was used to evaluate the effect of GABPA overexpression on in vivo tumorigenesis and metastasis. ccRCC cells were incubated with L-2-HG to analyze GABPA expression and methylation. We carried out immunohistochemistry on patient specimens and TCGA dataset analyses to assess the effect of GABPA on ccRCC survival. Results GABPA depletion, although inhibiting telomerase expression, robustly enhanced proliferation, invasion and stemness of ccRCC cells, whereas GABPA overexpression exhibited opposite effects, strongly inhibiting in vivo metastasis and carcinogenesis. TGFBR2 was identified as the GABPA target gene through which GABPA governed the TGFβ signaling to dictate ccRCC phenotypes. GABPA and TGFBR2 phenocopies each other in ccRCC cells. Higher GABPA or TGFBR2 expression predicted longer survival in patients with ccRCC. Incubation of ccRCC cells with L-2-HG mimics GABPA-knockdown-mediated phenotypic alterations. L-2-HG silenced the expression of GABPA in ccRCC cells by increasing its methylation. Conclusions GABPA acts as a tumor suppressor by stimulating TGFBR2 expression and TGFβ signaling, while L-2-HG epigenetically inhibits GABPA expression, disrupting the GABPA-TGFβ loop to drive ccRCC aggressiveness. These results exemplify how oncometabolites erase tumor suppressive function for cancer development/progression. Restoring GABPA expression using DNA methylation inhibitors or other approaches, rather than targeting it, may be a novel strategy for ccRCC therapy. Supplementary Information The online version contains supplementary material available at 10.1186/s13046-022-02382-6.
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Affiliation(s)
- Zhiqing Fang
- Department of Urology, Qilu Hospital of Shandong University, Jinan, China.,Department of Medicine, Division of Hematology, Bioclinicum and Center for Molecular Medicine, Karolinska Institute and Karolinska University Hospital Solna, Stockholm, Sweden
| | - Ning Zhang
- Department of Breast Surgery, General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, China.
| | - Xiaotian Yuan
- Department of Medicine, Division of Hematology, Bioclinicum and Center for Molecular Medicine, Karolinska Institute and Karolinska University Hospital Solna, Stockholm, Sweden.,Laboratory Animal Center, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Xiangling Xing
- Department of Medicine, Division of Hematology, Bioclinicum and Center for Molecular Medicine, Karolinska Institute and Karolinska University Hospital Solna, Stockholm, Sweden
| | - Xiaofeng Li
- Department of Urology, Qilu Hospital of Shandong University, Jinan, China
| | - Xin Qin
- Department of Urology, Qilu Hospital of Shandong University, Jinan, China
| | - Zhengfang Liu
- Department of Urology, Qilu Hospital of Shandong University, Jinan, China
| | - Shiyong Neo
- Department of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden
| | - Cheng Liu
- Department of Urology, the Third Hospital of Peking University, Beijing, People's Republic of China
| | - Feng Kong
- Renal Regeneration Laboratory, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Magnus Björkholm
- Department of Medicine, Division of Hematology, Bioclinicum and Center for Molecular Medicine, Karolinska Institute and Karolinska University Hospital Solna, Stockholm, Sweden
| | - Yidong Fan
- Department of Urology, Qilu Hospital of Shandong University, Jinan, China.
| | - Dawei Xu
- Department of Medicine, Division of Hematology, Bioclinicum and Center for Molecular Medicine, Karolinska Institute and Karolinska University Hospital Solna, Stockholm, Sweden.
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